diff --git a/docs/snakefiles/reporting.rst b/docs/snakefiles/reporting.rst
index c011b5fbd..16e7de925 100644
--- a/docs/snakefiles/reporting.rst
+++ b/docs/snakefiles/reporting.rst
@@ -52,7 +52,11 @@ Consider the following example:
 
   rule d:
       output:
-          report(directory("testdir"), patterns=["{name}.txt"], caption="report/somedata.rst", category="Step 3")
+          report(
+              directory("testdir"), 
+              patterns=["{name}.txt"], 
+              caption="report/somedata.rst", 
+              category="Step 3")
       shell:
           "mkdir {output}; for i in 1 2 3; do echo $i > {output}/$i.txt; done"
 
@@ -89,8 +93,44 @@ This works as follows:
             echo \"alert('test')\" > test/js/test.js
             """
 
+Defining file labels
+~~~~~~~~~~~~~~~~~~~~~
 
-Moreover, in every ``.rst`` document, you can link to
+In addition to category, and subcategory, it is possible to define a dictionary of labels for each report item.
+By that, the actual filename will be hidden in the report and instead a table with the label keys as columns and the values in the respective row for the file will be displayed.
+This can lead to less technical reports that abstract away the fact that the results of the analysis are actually files.
+Consider the following modification of rule ``b`` from above:
+
+.. code-block:: python
+
+    rule b:
+      input:
+          expand("{model}.{i}.out", i=range(10))
+      output:
+          report(
+              "fig2.png", 
+              caption="report/fig2.rst", 
+              category="Step 2", 
+              subcategory="{model}",
+              labels={
+                  "model": "{model}",
+                  "figure": "some plot"
+              }
+          )
+      shell:
+          "sleep `shuf -i 1-3 -n 1`; cp data/fig2.png {output}"
+
+
+Determining category, subcategory, and labels dynamically via functions
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Similar to e.g. with input file and parameter definition (see :ref:`snakefiles-input_functions`), ``category`` and a ``subcategory`` and ``labels`` can be specified by pointing to a function which is expected to return a string.
+
+
+Linking between items
+~~~~~~~~~~~~~~~~~~~~~
+
+In every ``.rst`` document, you can link to
 
 * the **Workflow** panel (with ``Rules_``),
 * the **Statistics** panel (with ``Statistics_``),
@@ -99,6 +139,9 @@ Moreover, in every ``.rst`` document, you can link to
 
 For details about the hyperlink mechanism of restructured text see `here <https://docutils.sourceforge.io/docs/user/rst/quickref.html#hyperlink-targets>`_.
 
+Rendering reports
+~~~~~~~~~~~~~~~~~
+
 To create the report simply run
 
 .. code-block:: bash
diff --git a/setup.py b/setup.py
index 46ebfafbc..c83941777 100644
--- a/setup.py
+++ b/setup.py
@@ -41,6 +41,8 @@
         "snakemake",
         "snakemake.remote",
         "snakemake.report",
+        "snakemake.report.template",
+        "snakemake.report.data",
         "snakemake.common",
         "snakemake.caching",
         "snakemake.deployment",
@@ -56,7 +58,7 @@
             "snakemake-bash-completion = snakemake:bash_completion",
         ]
     },
-    package_data={"": ["*.css", "*.sh", "*.html", "*.jinja2"]},
+    package_data={"": ["*.css", "*.sh", "*.html", "*.jinja2", "*.js", "*.svg"]},
     install_requires=[
         "wrapt",
         "requests",
@@ -82,7 +84,7 @@
         "retry",
     ],
     extras_require={
-        "reports": ["jinja2", "networkx", "pygments", "pygraphviz"],
+        "reports": ["jinja2", "pygments"],
         "messaging": ["slacker"],
         "google-cloud": [
             "oauth2client",
diff --git a/snakemake/common/__init__.py b/snakemake/common/__init__.py
index 2cde9d810..852abd70d 100644
--- a/snakemake/common/__init__.py
+++ b/snakemake/common/__init__.py
@@ -257,3 +257,13 @@ class Gather:
     """A namespace for gather to allow items to be accessed via dot notation."""
 
     pass
+
+
+def get_function_params(func):
+    return inspect.signature(func).parameters
+
+
+def get_input_function_aux_params(func, candidate_params):
+    func_params = get_function_params(func)
+
+    return {k: v for k, v in candidate_params.items() if k in func_params}
diff --git a/snakemake/dag.py b/snakemake/dag.py
index d768728bb..5c9bfedeb 100755
--- a/snakemake/dag.py
+++ b/snakemake/dag.py
@@ -2235,6 +2235,28 @@ def stats(self):
         yield tabulate(rows, headers="keys")
         yield ""
 
+    def toposorted(self, jobs=None, inherit_pipe_dependencies=False):
+        from toposort import toposort
+
+        if jobs is None:
+            jobs = set(self.jobs)
+
+        def get_dependencies(job):
+            for dep, files in self.dependencies[job].items():
+                if dep in jobs:
+                    yield dep
+                    if inherit_pipe_dependencies and any(
+                        is_flagged(f, "pipe") for f in files
+                    ):
+                        # In case of a pipe, inherit the dependencies of the producer,
+                        # such that the two jobs end up on the same toposort level.
+                        # This is important because they are executed simulataneously.
+                        yield from get_dependencies(dep)
+
+        dag = {job: set(get_dependencies(job)) for job in jobs}
+
+        return toposort(dag)
+
     def get_outputs_with_changes(self, change_type, include_needrun=True):
         is_changed = lambda job: (
             getattr(self.workflow.persistence, f"{change_type}_changed")(job)
diff --git a/snakemake/io.py b/snakemake/io.py
index f6772cdb3..d22086025 100755
--- a/snakemake/io.py
+++ b/snakemake/io.py
@@ -1080,12 +1080,19 @@ def checkpoint_target(value):
 
 
 ReportObject = collections.namedtuple(
-    "ReportObject", ["caption", "category", "subcategory", "patterns", "htmlindex"]
+    "ReportObject",
+    ["caption", "category", "subcategory", "labels", "patterns", "htmlindex"],
 )
 
 
 def report(
-    value, caption=None, category=None, subcategory=None, patterns=[], htmlindex=None
+    value,
+    caption=None,
+    category=None,
+    subcategory=None,
+    labels=None,
+    patterns=[],
+    htmlindex=None,
 ):
     """Flag output file or directory as to be included into reports.
 
@@ -1094,15 +1101,17 @@ def report(
     Arguments
     value -- File or directory.
     caption -- Path to a .rst file with a textual description of the result.
-    category -- Name of the category in which the result should be displayed in the report.
-    pattern -- Wildcard pattern for selecting files if a directory is given (this is used as
+    category -- Name of the (optional) category in which the result should be displayed in the report.
+    subcategory -- Name of the (optional) subcategory
+    columns  -- Dict of strings (may contain wildcard expressions) that will be used as columns when displaying result tables
+    patterns -- Wildcard patterns for selecting files if a directory is given (this is used as
                input for snakemake.io.glob_wildcards). Pattern shall not include the path to the
                directory itself.
     """
     return flag(
         value,
         "report",
-        ReportObject(caption, category, subcategory, patterns, htmlindex),
+        ReportObject(caption, category, subcategory, labels, patterns, htmlindex),
     )
 
 
diff --git a/snakemake/jobs.py b/snakemake/jobs.py
index d8a36a7e6..670c3b8a2 100644
--- a/snakemake/jobs.py
+++ b/snakemake/jobs.py
@@ -1179,20 +1179,9 @@ def finalize(self):
         from toposort import toposort
 
         if self.toposorted is None:
-
-            def get_dependencies(job):
-                for dep, files in self.dag.dependencies[job].items():
-                    if dep in self.jobs:
-                        yield dep
-                        if any(is_flagged(f, "pipe") for f in files):
-                            # In case of a pipe, inherit the dependencies of the producer,
-                            # such that the two jobs end up on the same toposort level.
-                            # This is important because they are executed simulataneously.
-                            yield from get_dependencies(dep)
-
-            dag = {job: set(get_dependencies(job)) for job in self.jobs}
-
-            self.toposorted = list(toposort(dag))
+            self.toposorted = list(
+                self.dag.toposorted(jobs=self.jobs, inherit_pipe_dependencies=True)
+            )
 
     @property
     def all_products(self):
diff --git a/snakemake/report/__init__.py b/snakemake/report/__init__.py
index 395198258..965bc0a5d 100644
--- a/snakemake/report/__init__.py
+++ b/snakemake/report/__init__.py
@@ -34,6 +34,7 @@
 from snakemake.utils import format
 from snakemake.logging import logger
 from snakemake.io import (
+    is_callable,
     is_flagged,
     get_flag_value,
     glob_wildcards,
@@ -41,11 +42,18 @@
     apply_wildcards,
     contains_wildcard,
 )
-from snakemake.exceptions import WorkflowError
+from snakemake.exceptions import InputFunctionException, WorkflowError
 from snakemake.script import Snakemake
 from snakemake import __version__
-from snakemake.common import num_if_possible, lazy_property
+from snakemake.common import (
+    get_input_function_aux_params,
+    is_local_file,
+    num_if_possible,
+    lazy_property,
+)
 from snakemake import logging
+from snakemake.report import data
+from snakemake.report.rulegraph_spec import rulegraph_spec
 
 
 class EmbeddedMixin(object):
@@ -104,6 +112,8 @@ def mime_from_file(file):
 
 def data_uri_from_file(file, defaultenc="utf8"):
     """Craft a base64 data URI from file with proper encoding and mimetype."""
+    if isinstance(file, Path):
+        file = str(file)
     mime, encoding = mime_from_file(file)
     if encoding is None:
         encoding = defaultenc
@@ -118,7 +128,7 @@ def report(
     defaultenc="utf8",
     template=None,
     metadata=None,
-    **files
+    **files,
 ):
     if stylesheet is None:
         os.path.join(os.path.dirname(__file__), "report.css")
@@ -200,6 +210,22 @@ def report(
     )
 
 
+def expand_report_argument(item, wildcards, job):
+    if is_callable(item):
+        aux_params = get_input_function_aux_params(item, {"params": job.params})
+        try:
+            item = item(wildcards, **aux_params)
+        except Exception as e:
+            raise InputFunctionException(e, rule=job.rule, wildcards=wildcards)
+    if isinstance(item, str):
+        try:
+            return apply_wildcards(item, wildcards)
+        except AttributeError as e:
+            raise WorkflowError("Failed to resolve wildcards.", e, rule=job.rule)
+    else:
+        return item
+
+
 class Category:
     def __init__(self, name, wildcards, job):
         if name is None:
@@ -207,10 +233,7 @@ def __init__(self, name, wildcards, job):
             self.is_other = True
         else:
             self.is_other = False
-            try:
-                name = apply_wildcards(name, wildcards)
-            except AttributeError as e:
-                raise WorkflowError("Failed to resolve wildcards.", e, rule=job.rule)
+            name = expand_report_argument(name, wildcards, job)
         self.name = name
         h = hashlib.sha256()
         h.update(name.encode())
@@ -228,6 +251,13 @@ def __lt__(self, other):
         return self.name.__lt__(other.name)
 
 
+def render_iofile(iofile):
+    if is_callable(iofile):
+        return "<function>"
+    else:
+        return str(iofile)
+
+
 class RuleRecord:
     def __init__(self, job, job_rec):
         import yaml
@@ -284,8 +314,6 @@ def code(self):
                 self._rule.notebook,
                 self._rule.workflow.sourcecache,
                 self._rule.basedir,
-                wildcards=self.wildcards,
-                params=self.params,
             )
             language = language.split("_")[1]
             sources = notebook.get_cell_sources(source)
@@ -298,14 +326,11 @@ def code(self):
         try:
             lexer = get_lexer_by_name(language)
 
-            highlighted = [
-                highlight(
-                    source,
-                    lexer,
-                    HtmlFormatter(linenos=True, cssclass="source", wrapcode=True),
-                )
-                for source in sources
-            ]
+            highlighted = highlight(
+                "\n\n".join(sources),
+                lexer,
+                HtmlFormatter(linenos=True, cssclass="source", wrapcode=True),
+            )
 
             return highlighted
         except pygments.util.ClassNotFound:
@@ -319,11 +344,11 @@ def add(self, job_rec):
 
     @property
     def output(self):
-        return self._rule.output
+        return [render_iofile(f) for f in self._rule.output]
 
     @property
     def input(self):
-        return self._rule.input
+        return [render_iofile(f) for f in self._rule.input]
 
     def __eq__(self, other):
         return (
@@ -391,13 +416,16 @@ def __init__(
         mode_embedded=True,
         aux_files=None,
         name_overwrite=None,
+        labels=None,
     ):
+        self.labels = labels
         self.name_overwrite = name_overwrite
         self.mode_embedded = mode_embedded
         self.path = path
         self.target = os.path.basename(path)
         self.size = os.path.getsize(self.path)
-        logger.info("Adding {} ({:.2g} MB).".format(self.name, self.size / 1e6))
+        self.size_mb = f"{self.size / 1e6:.2g} MB"
+        logger.info(f"Adding {self.name} ({self.size_mb}).")
         self.raw_caption = caption
         self.mime, _ = mime_from_file(self.path)
         self.workflow = workflow
@@ -419,51 +447,6 @@ def __init__(
         self.aux_files = aux_files or []
 
         self.data_uri = self._data_uri()
-        self.png_uri = self._png_uri()
-
-    @lazy_property
-    def png_content(self):
-        assert self.is_img
-
-        convert = shutil.which("magick")
-        if convert is not None:
-            try:
-                # 2048 aims at a reasonable balance between what displays
-                # can show in a png-preview image and what renders quick
-                # into a small enough png
-                max_width = "2048"
-                max_height = "2048"
-                # '>' means only larger images scaled down to within max-dimensions
-                max_spec = max_width + "x" + max_height + ">"
-                png = sp.check_output(
-                    ["magick", "convert", "-resize", max_spec, self.path, "png:-"],
-                    stderr=sp.PIPE,
-                )
-                return png
-            except sp.CalledProcessError as e:
-                logger.warning(
-                    "Failed to convert image to png with "
-                    "imagemagick convert: {}".format(e.stderr)
-                )
-        else:
-            logger.warning(
-                "Command convert not in $PATH. Install "
-                "imagemagick in order to have embedded "
-                "images and pdfs in the report."
-            )
-
-    def _png_uri(self):
-        if self.is_img:
-            png = self.png_content
-            if self.mode_embedded:
-                if png is not None:
-                    uri = data_uri(
-                        png, os.path.basename(self.path) + ".png", mime="image/png"
-                    )
-                    return uri
-            else:
-                if png is not None:
-                    return os.path.join("data/thumbnails", self.id)
 
     def _data_uri(self):
         if self.mode_embedded:
@@ -501,9 +484,7 @@ def render(self, env, rst_links, categories, files):
                 caption = env.from_string(caption).render(
                     snakemake=snakemake, categories=categories, files=files
                 )
-                self.caption = json.dumps(
-                    publish_parts(caption, writer_name="html")["body"]
-                )
+                self.caption = publish_parts(caption, writer_name="html")["body"]
             except Exception as e:
                 raise WorkflowError(
                     "Error loading caption file {} of output marked for report.".format(
@@ -559,48 +540,34 @@ def filename(self):
         return os.path.basename(self.path)
 
 
-def rulegraph_d3_spec(dag):
-    try:
-        import networkx as nx
-        from networkx.drawing.nx_agraph import graphviz_layout
-        from networkx.readwrite import json_graph
-    except ImportError as e:
+def get_resource_as_string(path_or_uri):
+    if is_local_file(path_or_uri):
+        return open(Path(__file__).parent / "template" / path_or_uri).read()
+    else:
+        r = requests.get(path_or_uri)
+        if r.status_code == requests.codes.ok:
+            return r.text
         raise WorkflowError(
-            "Python packages networkx and pygraphviz must be "
-            "installed to create reports.",
-            e,
+            "Failed to download resource needed for " "report: {}".format(path_or_uri)
         )
 
-    g = nx.DiGraph()
-    g.add_nodes_from(sorted(job.rule.name for job in dag.jobs))
 
-    for job in dag.jobs:
-        target = job.rule.name
-        for dep in dag.dependencies[job]:
-            source = dep.rule.name
-            g.add_edge(source, target)
-
-    pos = graphviz_layout(g, "dot", args="-Grankdir=BT")
-    xmax = max(x for x, y in pos.values()) + 100  # add offset to account for labels
-    ymax = max(y for x, y in pos.values())
-
-    def encode_node(node):
-        x, y = pos[node]
-        return {"rule": node, "fx": x, "fy": y}
-
-    nodes = list(map(encode_node, g.nodes))
-    idx = {node: i for i, node in enumerate(g.nodes)}
-    links = [{"target": idx[u], "source": idx[v], "value": 1} for u, v in g.edges]
-    return {"nodes": nodes, "links": links}, xmax, ymax
-
-
-def get_resource_as_string(url):
-    r = requests.get(url)
-    if r.status_code == requests.codes.ok:
-        return r.text
-    raise WorkflowError(
-        "Failed to download resource needed for " "report: {}".format(url)
-    )
+def expand_labels(labels, wildcards, job):
+    if labels is None:
+        return None
+    labels = expand_report_argument(labels, wildcards, job)
+
+    if not isinstance(labels, dict) or not all(
+        isinstance(col, str) for col in labels.values()
+    ):
+        raise WorkflowError(
+            "Expected dict of strings as labels argument given to report flag.",
+            rule=job.rule,
+        )
+    return {
+        name: expand_report_argument(col, wildcards, job)
+        for name, col in labels.items()
+    }
 
 
 def auto_report(dag, path, stylesheet=None):
@@ -628,7 +595,7 @@ def auto_report(dag, path, stylesheet=None):
     logger.info("Creating report...")
 
     env = Environment(
-        loader=PackageLoader("snakemake", "report"),
+        loader=PackageLoader("snakemake", "report/template"),
         trim_blocks=True,
         lstrip_blocks=True,
     )
@@ -657,6 +624,7 @@ def register_file(
                     subcategory = Category(
                         report_obj.subcategory, wildcards=wildcards, job=job
                     )
+                    labels = expand_labels(report_obj.labels, wildcards, job)
 
                     results[category][subcategory].append(
                         FileRecord(
@@ -670,6 +638,7 @@ def register_file(
                             mode_embedded=mode_embedded,
                             aux_files=aux_files,
                             name_overwrite=name_overwrite,
+                            labels=labels,
                         )
                     )
                     recorded_files.add(f)
@@ -761,7 +730,6 @@ def get_time(rectime, metatime, sel_func):
                 rec.container_img_url = meta["container_img_url"]
                 rec.output.append(f)
             except KeyError as e:
-                print(e)
                 logger.warning(
                     "Metadata for file {} was created with a too "
                     "old Snakemake version.".format(f)
@@ -808,9 +776,12 @@ def get_datetime(rectime):
                     break
             if not merged:
                 rules[rec.rule].append(rule)
+    # In theory there could be more than one rule with the same name kept from above.
+    # For now, we just keep the first.
+    rules = {rulename: items[0] for rulename, items in rules.items()}
 
     # rulegraph
-    rulegraph, xmax, ymax = rulegraph_d3_spec(dag)
+    rulegraph, xmax, ymax = rulegraph_spec(dag)
 
     # configfiles
     configfiles = [ConfigfileRecord(f) for f in dag.workflow.configfiles]
@@ -830,10 +801,10 @@ def get_datetime(rectime):
     .. _Workflow: javascript:show_panel('workflow')
     .. _Statistics: javascript:show_panel('statistics')
     {% for cat, catresults in categories|dictsort %}
-    .. _{{ cat.name }}: javascript:show_panel("{{ cat.id }}")
+    .. _{{ cat.name }}: javascript:app.showCategory('{{ cat.name|urlencode }}')
     {% endfor %}
     {% for res in files %}
-    .. _{{ res.target }}: javascript:show_panel("{{ res.category.id }}")
+    .. _{{ res.target }}: javascript:app.showResultInfo('{{ res.path|urlencode }}')
     {% endfor %}
     """
     )
@@ -851,6 +822,7 @@ class Snakemake:
                 config = dag.workflow.config
 
             text = f.read() + rst_links
+
             try:
                 text = publish_parts(
                     env.from_string(text).render(
@@ -882,27 +854,32 @@ class Snakemake:
             "Python package pygments must be installed to create reports."
         )
 
-    template = env.get_template("report.html.jinja2")
+    categories = data.render_categories(results)
+    rendered_results = data.render_results(results)
+    rulegraph = data.render_rulegraph(
+        rulegraph["nodes"], rulegraph["links"], rulegraph["links_direct"]
+    )
+    rules = data.render_rules(rules)
+    runtimes = data.render_runtimes(runtimes)
+    timeline = data.render_timeline(timeline)
+
+    template = env.get_template("index.html.jinja2")
 
     logger.info("Downloading resources and rendering HTML.")
 
     rendered = template.render(
-        results=results,
-        results_size=results_size,
-        configfiles=configfiles,
-        text=text,
-        rulegraph_nodes=rulegraph["nodes"],
-        rulegraph_links=rulegraph["links"],
-        rulegraph_width=xmax + 20,
-        rulegraph_height=ymax + 20,
+        results=rendered_results,
+        categories=categories,
+        rulegraph=rulegraph,
+        rules=rules,
+        workflow_desc=json.dumps(text),
         runtimes=runtimes,
         timeline=timeline,
-        rules=[rec for recs in rules.values() for rec in recs],
-        version=__version__,
-        now=now,
-        pygments_css=HtmlFormatter(style="trac").get_style_defs(".source"),
+        pygments_css=HtmlFormatter(style="stata-dark").get_style_defs(".source"),
         custom_stylesheet=custom_stylesheet,
-        mode_embedded=mode_embedded,
+        logo=data_uri_from_file(Path(__file__).parent / "template" / "logo.svg"),
+        now=now,
+        version=__version__.split("+")[0],
     )
 
     # TODO look into supporting .WARC format, also see (https://webrecorder.io)
@@ -916,11 +893,6 @@ class Snakemake:
                     for result in catresults:
                         # write raw data
                         zipout.write(result.path, str(folder.joinpath(result.data_uri)))
-                        # write thumbnail
-                        if result.is_img and result.png_content:
-                            zipout.writestr(
-                                str(folder.joinpath(result.png_uri)), result.png_content
-                            )
                         # write aux files
                         parent = folder.joinpath(result.data_uri).parent
                         for aux_path in result.aux_files:
diff --git a/snakemake/report/data/__init__.py b/snakemake/report/data/__init__.py
new file mode 100644
index 000000000..45fb7ccfe
--- /dev/null
+++ b/snakemake/report/data/__init__.py
@@ -0,0 +1,6 @@
+from .results import render_results
+from .categories import render_categories
+from .rulegraph import render_rulegraph
+from .rules import render_rules
+from .runtimes import render_runtimes
+from .timeline import render_timeline
diff --git a/snakemake/report/data/categories.py b/snakemake/report/data/categories.py
new file mode 100644
index 000000000..12e797eb7
--- /dev/null
+++ b/snakemake/report/data/categories.py
@@ -0,0 +1,15 @@
+import json
+
+
+def render_categories(results):
+    return json.dumps(
+        {
+            cat.name: {
+                subcat.name: [res.path for res in catresults]
+                for subcat, catresults in subcats.items()
+                if catresults
+            }
+            for cat, subcats in results.items()
+            if subcats and sum(len(catresults) for catresults in subcats.values())
+        }
+    )
diff --git a/snakemake/report/data/results.py b/snakemake/report/data/results.py
new file mode 100644
index 000000000..1cd4010fa
--- /dev/null
+++ b/snakemake/report/data/results.py
@@ -0,0 +1,25 @@
+import json
+
+
+def render_results(results):
+    return json.dumps(
+        {
+            res.path: {
+                "name": res.name,
+                "filename": res.filename,
+                "labels": res.labels,
+                "size": res.size_mb,
+                "caption": res.caption,
+                "mime_type": res.mime,
+                "job_properties": {
+                    "rule": res.job.rule.name,
+                    "wildcards": res.wildcards,
+                    "params": res.params,
+                },
+                "data_uri": res.data_uri,
+            }
+            for cat, subcats in results.items()
+            for subcat, catresults in subcats.items()
+            for res in catresults
+        }
+    )
diff --git a/snakemake/report/data/rulegraph.py b/snakemake/report/data/rulegraph.py
new file mode 100644
index 000000000..6aa84f4d9
--- /dev/null
+++ b/snakemake/report/data/rulegraph.py
@@ -0,0 +1,132 @@
+import json
+
+
+def render_rulegraph(nodes, links, links_direct):
+    return json.dumps(
+        {
+            "$schema": "https://vega.github.io/schema/vega/v5.json",
+            "padding": 0,
+            "signals": [
+                {"name": "cx", "update": "width / 2"},
+                {"name": "cy", "update": "height / 2"},
+            ],
+            "data": [
+                {"name": "node-data", "values": nodes},
+                {"name": "link-data", "values": links},
+                {"name": "link-data-direct", "values": links_direct},
+            ],
+            "scales": [
+                {
+                    "name": "color",
+                    "type": "ordinal",
+                    "range": {"scheme": "category20c"},
+                },
+                {"name": "x", "type": "linear"},
+                {"name": "y", "type": "linear"},
+            ],
+            "marks": [
+                {
+                    "name": "nodes",
+                    "type": "symbol",
+                    "zindex": 1,
+                    "from": {"data": "node-data"},
+                    "encode": {
+                        "enter": {
+                            "fill": {"scale": "color", "field": "rule"},
+                            "x": {"field": "fx", "scale": "x"},
+                            "y": {"field": "fy", "scale": "y"},
+                            "tooltip": {"value": "Click to show rule details."},
+                        },
+                        "update": {"size": {"value": 70}},
+                        "hover": {"size": {"value": 140}},
+                    },
+                    "transform": [
+                        {
+                            "type": "force",
+                            "iterations": 1,
+                            "static": True,
+                            "forces": [{"force": "link", "links": "link-data"}],
+                        },
+                        {
+                            "type": "force",
+                            "iterations": 1,
+                            "static": True,
+                            "forces": [{"force": "link", "links": "link-data-direct"}],
+                        },
+                    ],
+                },
+                {
+                    "name": "labels",
+                    "type": "text",
+                    "zindex": 2,
+                    "from": {"data": "node-data"},
+                    "encode": {
+                        "enter": {
+                            "fill": {"value": "black"},
+                            "fontWeight": {"value": "normal"},
+                            "text": {"field": "rule"},
+                            "x": {"field": "fx", "scale": "x"},
+                            "y": {"field": "fy", "scale": "y"},
+                            "dx": {"value": -5},
+                            "dy": {"value": -5},
+                            "align": {"value": "right"},
+                        }
+                    },
+                },
+                {
+                    "type": "path",
+                    "from": {"data": "link-data-direct"},
+                    "interactive": True,
+                    "encode": {
+                        "update": {
+                            "stroke": {"value": "#ccc"},
+                            "strokeWidth": {"value": 1.0},
+                        },
+                        "hover": {
+                            "strokeWidth": {"value": 4.0},
+                        },
+                    },
+                    "transform": [
+                        {
+                            "type": "linkpath",
+                            "shape": "diagonal",
+                            "sourceX": "datum.source.x",
+                            "sourceY": "datum.source.y",
+                            "targetX": "datum.target.x",
+                            "targetY": "datum.target.y",
+                        }
+                    ],
+                },
+                {
+                    "type": "path",
+                    "from": {"data": "link-data"},
+                    "interactive": True,
+                    "encode": {
+                        "enter": {
+                            "tooltip": {
+                                "signal": "{\"from rule\": datum['sourcerule'], \"to rule\": datum['targetrule']}"
+                            },
+                        },
+                        "update": {
+                            "stroke": {"value": "#ccc"},
+                            "strokeWidth": {"value": 1.0},
+                        },
+                        "hover": {
+                            "strokeWidth": {"value": 4.0},
+                        },
+                    },
+                    "transform": [
+                        {
+                            "type": "linkpath",
+                            "shape": "curve",
+                            "orient": "horizontal",
+                            "sourceX": "datum.source.x",
+                            "sourceY": "datum.source.y",
+                            "targetX": "datum.target.x",
+                            "targetY": "datum.target.y",
+                        }
+                    ],
+                },
+            ],
+        }
+    )
diff --git a/snakemake/report/data/rules.py b/snakemake/report/data/rules.py
new file mode 100644
index 000000000..dfa35004f
--- /dev/null
+++ b/snakemake/report/data/rules.py
@@ -0,0 +1,17 @@
+import json
+
+
+def render_rules(rules):
+    return json.dumps(
+        {
+            rulename: {
+                "input": rule.input,
+                "output": rule.output,
+                "conda_env": rule.conda_env,
+                "container_img_url": rule.container_img_url,
+                "code": rule.code,
+                "n_jobs": rule.n_jobs,
+            }
+            for rulename, rule in rules.items()
+        }
+    )
diff --git a/snakemake/report/data/runtimes.py b/snakemake/report/data/runtimes.py
new file mode 100644
index 000000000..a82c7009c
--- /dev/null
+++ b/snakemake/report/data/runtimes.py
@@ -0,0 +1,22 @@
+import json
+
+
+def render_runtimes(runtimes):
+    return json.dumps(
+        {
+            "$schema": "https://vega.github.io/schema/vega-lite/v3.json",
+            "description": "Runtimes of jobs.",
+            "data": {"values": runtimes},
+            "mark": "point",
+            "encoding": {
+                "x": {
+                    "field": "runtime",
+                    "type": "quantitative",
+                    "axis": {"title": "runtime [s]", "labelAngle": -90},
+                    "scale": {"type": "log"},
+                },
+                "y": {"field": "rule", "type": "nominal"},
+                "color": {"value": "#007bff"},
+            },
+        }
+    )
diff --git a/snakemake/report/data/timeline.py b/snakemake/report/data/timeline.py
new file mode 100644
index 000000000..7591441ce
--- /dev/null
+++ b/snakemake/report/data/timeline.py
@@ -0,0 +1,22 @@
+import json
+
+
+def render_timeline(timeline):
+    return json.dumps(
+        {
+            "$schema": "https://vega.github.io/schema/vega-lite/v3.json",
+            "description": "Timeline of jobs.",
+            "data": {"values": timeline},
+            "mark": "point",
+            "encoding": {
+                "x": {
+                    "field": "endtime",
+                    "type": "temporal",
+                    "timeUnit": "yearmonthdatehoursminutes",
+                    "axis": {"labelAngle": -90, "title": "creation date"},
+                },
+                "y": {"field": "rule", "type": "nominal"},
+                "color": {"value": "#007bff"},
+            },
+        }
+    )
diff --git a/snakemake/report/report.html.jinja2 b/snakemake/report/report.html.jinja2
deleted file mode 100644
index 43c231908..000000000
--- a/snakemake/report/report.html.jinja2
+++ /dev/null
@@ -1,940 +0,0 @@
-<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
-    <meta name="description" content="">
-    <meta name="author" content="">
-
-    <title>Snakemake Report</title>
-
-    <!-- Bootstrap CSS -->
-    <style>{{ "https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css"|get_resource_as_string }}</style>
-    <style>{{ "https://cdnjs.cloudflare.com/ajax/libs/ekko-lightbox/5.3.0/ekko-lightbox.css"|get_resource_as_string }}</style>
-    <style>{{ "https://cdn.datatables.net/v/bs4/dt-1.10.20/r-2.2.2/sl-1.3.0/datatables.min.css"|get_resource_as_string }}</style>
-    <style>{{ pygments_css|safe }}</style>
-
-    <!-- Custom styles for this template -->
-    <style>
-      body {
-      font-size: .875rem;
-      }
-
-      .feather {
-      width: 16px;
-      height: 16px;
-      vertical-align: text-bottom;
-      }
-
-      /*
-      * Sidebar
-      */
-
-      .sidebar {
-      position: fixed;
-      top: 0;
-      bottom: 0;
-      left: 0;
-      z-index: 100; /* Behind the navbar */
-      padding: 48px 0 0; /* Height of navbar */
-      box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
-      }
-
-      .sidebar-sticky {
-      position: relative;
-      top: 0;
-      height: calc(100vh - 48px);
-      padding-top: .5rem;
-      overflow-x: hidden;
-      overflow-y: auto; /* Scrollable contents if viewport is shorter than content. */
-      }
-
-      @supports ((position: -webkit-sticky) or (position: sticky)) {
-      .sidebar-sticky {
-        position: -webkit-sticky;
-        position: sticky;
-      }
-      }
-
-      .sidebar .nav-link {
-      font-weight: 500;
-      color: #333;
-      }
-
-      .sidebar .nav-link .feather {
-      margin-right: 4px;
-      color: #999;
-      }
-
-      .sidebar .nav-link.active {
-      color: #007bff;
-      }
-
-      .sidebar .nav-link:hover .feather,
-      .sidebar .nav-link.active .feather {
-      color: inherit;
-      }
-
-      .sidebar-heading {
-      font-size: .75rem;
-      text-transform: uppercase;
-      }
-
-      /*
-      * Content
-      */
-
-      [role="main"] {
-      padding-top: 65px; /* Space for fixed navbar */
-      }
-
-      *[id]:before {
-        display: block;
-        content: " ";
-        margin-top: -75px;
-        height: 75px;
-        visibility: hidden;
-      }
-
-      /*
-      * Navbar
-      */
-
-      .navbar-brand {
-      padding-top: .75rem;
-      padding-bottom: .75rem;
-      font-size: 1rem;
-      font-weight: bold;
-      background-color: rgba(0, 0, 0, .25);
-      box-shadow: inset -1px 0 0 rgba(0, 0, 0, .25);
-      }
-
-      .navbar .form-control {
-      padding: .75rem 1rem;
-      border-width: 0;
-      border-radius: 0;
-      }
-
-      .form-control-dark {
-      color: #fff;
-      background-color: rgba(255, 255, 255, .1);
-      border-color: rgba(255, 255, 255, .1);
-      }
-
-      .form-control-dark:focus {
-      border-color: transparent;
-      box-shadow: 0 0 0 3px rgba(255, 255, 255, .25);
-      }
-
-      /*
-      * Utilities
-      */
-
-      .border-top { border-top: 1px solid #e5e5e5; }
-      .border-bottom { border-bottom: 1px solid #e5e5e5; }
-
-      /* Snakemake specific */
-      .result img {
-        max-width: 100vw;
-      }
-
-      .result .preview {
-        text-align: center;
-      }
-
-      #rulegraph canvas {
-        display: block;
-        max-width: 100vw;
-        margin-left: auto;
-        margin-right: auto;
-      }
-
-      @keyframes fadeinout {
-        0%   { opacity:1; }
-        50%  { opacity:0; }
-        100% { opacity:1; }
-      }
-
-      #loading-screen {
-        background-color: white;
-        width: 100%;
-        height: 100%;
-        position: fixed;
-        top: 0;
-        left: 0;
-        z-index: 2000;
-        padding-top: 50vh;
-      }
-
-      p.animation {
-        animation: fadeinout 2.5s infinite;
-        text-align: center;
-        font-size: 200%;
-      }
-
-      #loading-screen p#info {
-        text-align: center;
-        color: grey;
-      }
-
-      #loading-screen p#jswarning {
-      	text-align: center;
-        color: red;
-      }
-
-      #panel-loading-screen {
-        width: 100%;
-        height: 100%;
-        padding-top: 50vh;
-      }
-
-      #panel-loading-sceen p.animation {
-        margin: auto;
-      }
-
-      .vega-actions .btn {
-        font-size: 100%;
-      }
-
-      .plot {
-        text-align: center;
-      }
-
-      h6.sidebar-heading {
-        text-transform: none;
-      }
-
-      .preview {
-        text-align: right;
-      }
-
-      .ekko-lightbox-nav-overlay a span {
-        color: lightgrey;
-      }
-
-      .navbar {
-        opacity: 0.8;
-      }
-
-      .source {
-        background: none !important;
-        overflow-x: auto;
-        width: 100%;
-      }
-
-      table.dataTable tbody tr.selected,
-      table.dataTable tbody th.selected,
-      table.dataTable tbody td.selected {
-        color: black;
-        font-weight: bold;
-      }
-
-      table.dataTable tbody tr.selected td:first-of-type {
-        font-weight: bold;
-      }
-
-      table.dataTable tbody tr.selected td {
-        border-top: 1px solid #007bff;
-        border-bottom: 1px solid #007bff;
-      }
-
-      table.dataTable tbody > tr.selected, 
-      table.dataTable tbody > tr > .selected {
-        background-color: transparent;
-      }
-
-      table.dataTable tbody tr.selected a, 
-      table.dataTable tbody th.selected a, 
-      table.dataTable tbody td.selected a {
-        color: #007bff;
-      }
-
-      table caption {
-        display: none;
-      }
-
-      table.results-table {
-        width: 100%;
-	margin-bottom: 4em;
-      }
-
-      .rule-property {
-        overflow-y: auto;
-        max-height: 10em;
-      }
-
-      .panel {
-        display: none;
-      }
-
-      .panel#workflow {
-        display: block;
-      }
-
-      .ruletable th {
-        width: 1px;
-      }
-
-      .rule-properties ul {
-        padding-left: 1.2em;
-      }
-
-      #thumbnail-modal .modal-body {
-        overflow: auto;
-        text-align: center;
-      }
-
-      .category pre {
-        max-width: 20vw;
-        max-height: 10vh;
-      }
-	    
-      .modal-lg {
-    	max-width: 95%;
-      }
-    </style>
-
-    {% if custom_stylesheet is not none %}
-    <style>
-      {{ custom_stylesheet }}
-    </style>
-    {% endif %}
-  </head>
-
-  <body>
-    <div id="loading-screen">
-      <p class="animation">Loading Snakemake Report...</p>
-      <p id="jswarning">Please enable Javascript in your browser to see this report.</p>
-      {% if mode_embedded %}
-      <p id="info">Loading {{ results_size|filesizeformat }}. For large reports, this can take a while.</p>
-      {% endif %}
-    </div>
-
-    <nav class="navbar fixed-top navbar-dark bg-dark flex-md-nowrap p-0 shadow">
-      <a class="navbar-brand col-sm-3 col-md-2 mr-0" href="https://snakemake.readthedocs.io">Snakemake Report</a>
-      <div class="nav navbar-nav navbar-center" id="brand"></div>
-      <ul class="nav navbar-nav navbar-right" style="padding-right: 10px;">
-        <li class="text-white">{{ now }}</li>
-        <li><a class="text-white" href="https://snakemake.readthedocs.io">Snakemake {{ version }}</a></li>
-      </ul>
-      <!--<input id="searchbar" class="invisible form-control form-control-dark w-100" type="text" placeholder="Search" aria-label="Search">-->
-    </nav>
-
-    <div class="container-fluid">
-      <div class="row">
-        <nav class="col-md-2 d-none d-md-block bg-light sidebar">
-          <div class="sidebar-sticky">
-            <ul class="nav flex-column">
-              <li class="nav-item">
-                <a class="nav-link active panel-link" data-panel="workflow" href="javascript:void(0)">
-                  <span data-feather="git-pull-request"></span>
-                  Workflow <span class="sr-only">(current)</span>
-                </a>
-              </li>
-              <li class="nav-item">
-                <a class="nav-link panel-link" data-panel="statistics" href="javascript:void(0)">
-                  <span data-feather="bar-chart-2"></span>
-                  Statistics
-                </a>
-              </li>
-              {% if configfiles %}
-              <li class="nav-item">
-                <a class="nav-link panel-link" data-panel="configuration" href="javascript:void(0)">
-                  <span data-feather="settings"></span>
-                  Configuration
-                </a>
-              </li>
-              {% endif %}
-            </ul>
-
-            <h5 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
-              <span class="d-flex align-items-center text-muted text-bold">
-                Results
-              </span>
-            </h5>
-            <ul class="nav flex-column mb-2">
-            {% for cat, _ in results|dictsort %}
-              <li class="nav-item">
-                <a class="nav-link panel-link" data-panel="{{ cat.id }}" href="javascript:void(0)">
-                  <span data-feather="folder"></span>
-                  {{ cat.name }}
-                </a>
-              </li>
-            {% endfor %}
-            </ul>
-          </div>
-        </nav>
-
-        <main role="main" class="col-md-9 ml-sm-auto col-lg-10 px-4">
-          <div class="panel" id="workflow">
-            <h2>Workflow</h2>
-
-            {{ text }}
-
-            <div class="row justify-content-center">
-              <div class="col-xs-6">
-                <div id="rulegraph"></div>
-              </div>
-            </div>
-
-            <p>Click the nodes to obtain details about each step.</p>
-
-          </div>
-
-          {% for cat, subcats in results|dictsort %}
-          <div class="panel category" id="{{ cat.id }}">
-            <h2>{{ cat.name }}</h2>
-            {% for subcat, catresults in subcats|dictsort %}
-            {% if subcats|length > 1 or not subcat.is_other %}
-            <h4>{{ subcat.name }}</h4>
-            {% endif %}
-            <table class="results-table table" data-category="{{ cat.id }}" data-subcategory="{{ subcat.id }}"></table>
-            {% if not loop.last %}
-            <div style="clear: both; margin-bottom: 4em;"></div> <!-- ensure distance to next table -->
-            {% endif %}
-            {% endfor %}
-          </div>  
-          {% endfor %}
-
-          <div class="panel" id="statistics">
-            <h2>Statistics</h2>
-            If the workflow has been executed in cluster/cloud, runtimes include the waiting time in the queue.
-            <div class="row justify-content-center">
-              <div class="col-xs-6">
-                <div id="runtimes" class="plot"></div>
-              </div>
-              <div class="col-xs-6">
-                <div id="timeline" class="plot"></div>
-              </div>
-            </div>
-          </div>
-
-          {% if configfiles %}
-          <div class="panel" id="configuration">
-            <h2>Configuration</h2>
-            <table class="table">
-              <caption>Configuration files</caption>
-              <thead>
-                <tr>
-                  <th scope="col">File</th>
-                  <th scope="col">Code</th>
-                </tr>
-              </thead>
-              <tbody>
-                {% for configfile in configfiles %}
-                  <tr>
-                    <td>{{ configfile.name }}</td>
-                    <td>
-                      <a data-toggle="collapse" role="button" href="#configfile-{{ configfile.id }}" aria-expanded="false" aria-controls="collapse-env"><span data-feather="plus-circle"></span></a>
-                      <div class="collapse" id="configfile-{{ configfile.id }}">
-                        {{ configfile.code()|safe }}
-                      </div>
-                    </td>
-                  </tr>
-                {% endfor %}
-              </tbody>
-            </table>
-          </div>
-          {% endif %}
-
-          <div class="panel" id="panel-loading-screen">
-            <p class="animation">Loading...</p>
-          </div>
-        </main>
-
-        <div id="thumbnail-modal" class="modal" tabindex="-1" role="dialog">
-          <div class="modal-dialog modal-lg" role="document">
-            <div class="modal-content">
-              <div class="modal-header">
-                <h5 class="modal-title"></h5>
-                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
-                  <span aria-hidden="true">&times;</span>
-                </button>
-              </div>
-              <div class="modal-body">
-                <img src="" alt="Thumbnail">
-              </div>
-              <div class="modal-footer">
-                <a class="btn btn-primary btn-download" role="button" href="#">Download original</a>
-              </div>
-            </div>
-          </div>
-        </div>
-
-        {% for rule in rules %}
-        <div data-rule="{{ rule.name }}" class="modal rule-properties" tabindex="-1" role="dialog">
-          <div class="modal-dialog modal-lg" role="document">
-            <div class="modal-content">
-              <div class="modal-header">
-                <h5 class="modal-title">Rule {{ rule.name }}</h5>
-                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
-                  <span aria-hidden="true">&times;</span>
-                </button>
-              </div>
-              <div class="modal-body">
-                <table class="table w-auto table-sm table-borderless ruletable">
-                  <caption>Rule properties</caption>
-                  <tbody>
-                    <tr>
-                      <th scope="row">Jobs</th><td>{{ rule.n_jobs }}</td>
-                    </tr>
-
-                    {% if rule.input %}
-                    <tr>
-                      <th scope="row" colspan=2>Input files</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        <ul>
-                          {% for f in rule.input %}
-                            <li>{{ f }}</li>
-                          {% endfor %}
-                        </ul>
-                      </td>
-                    </tr>
-                    {% endif %}
-
-                    {% if rule.output %}
-                    <tr>
-                      <th scope="row" colspan=2>Output files</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        <ul>
-                          {% for f in rule.output %}
-                            <li>{{ f }}</li>
-                          {% endfor %}
-                        </ul>
-                      </td>
-                    </tr>
-                    {% endif %}
-
-                    {% if rule.container_img_url %}
-                    <tr>
-                      <th scope="row" colspan=2>Container image</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        {{ rule.container_img_url }}
-                      </td>
-                    </tr>
-                    {% endif %}
-
-                    {% if rule.conda_env %}
-                    <tr>
-                      <th scope="row" colspan=2>Conda software stack</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        <ul>
-                          {% for dep in rule.conda_env["dependencies"] %}
-                            <li>{{ dep }}</li>
-                          {% endfor %}
-                        </ul>
-                      </td>
-                    </tr>
-                    {% endif %}
-
-                    {% if rule.code %}
-                    <tr>
-                      <th scope="row" colspan=2>Code</th>
-                    </tr>
-                      {% for item in rule.code %}
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        {{ item|safe }}
-                      </td>
-                    </tr>
-                      {% endfor %}
-                    {% endif %}
-                  </tbody>
-                </table>
-              </div>
-            </div>
-          </div>
-        </div>
-        {% endfor %}
-      </div>
-    </div>
-    <!-- Optional JavaScript -->
-    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
-    <script>{{ "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"|get_resource_as_string }}</script>
-    <script>{{ "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"|get_resource_as_string }}</script>
-    <script>{{ "https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/js/bootstrap.min.js"|get_resource_as_string }}</script>
-    <script>{{ "https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.4/MathJax.js"|get_resource_as_string }}</script>
-    <script>{{ "https://cdnjs.cloudflare.com/ajax/libs/vega/5.6.0/vega.min.js"|get_resource_as_string }}</script>
-    <script>{{ "https://cdnjs.cloudflare.com/ajax/libs/vega-lite/3.4.0/vega-lite.min.js"|get_resource_as_string }}</script>
-    <script>{{ "https://cdnjs.cloudflare.com/ajax/libs/vega-embed/5.1.3/vega-embed.min.js"|get_resource_as_string }}</script>
-    <script>{{ "https://cdnjs.cloudflare.com/ajax/libs/feather-icons/4.7.3/feather.min.js"|get_resource_as_string }}</script>
-    <script>{{ "https://cdnjs.cloudflare.com/ajax/libs/ekko-lightbox/5.3.0/ekko-lightbox.min.js"|get_resource_as_string }}</script>
-    <script>{{ "https://cdn.datatables.net/v/bs4/dt-1.10.20/r-2.2.2/sl-1.3.0/datatables.min.js"|get_resource_as_string }}</script>
-    {% if mode_embedded %}
-    <script>{{ "https://raw.githubusercontent.com/eligrey/FileSaver.js/2.0.0/src/FileSaver.js"|get_resource_as_string }}</script>
-    {% endif %}
-
-    <!-- Icons -->
-    <script>
-      $("#jswarning").hide()
-      feather.replace()
-    </script>
-
-    <script id="results">
-      var results = {
-      {% for cat, subcats in results|dictsort %}
-        {% for subcat, catresults in subcats|dictsort %}
-          {% for res in catresults %}
-            "{{ res.path|safe }}": {
-              name: "{{ res.name }}",
-              filename: "{{ res.filename }}",
-              path: "{{ res.path }}",
-              size: "{{ res.size|filesizeformat }}",
-              caption: {{ res.caption|default('""', true) }},
-              job_properties: {
-                rule: "{{ res.job.rule.name }}",
-                wildcards: "{{ res.wildcards }}",
-                params: "{{ res.params }}"
-              },
-              data_uri: function() { return "{{ res.data_uri }}"; },
-              {% if res.png_uri is not none %}
-              thumbnail_uri: function() { return "{{ res.png_uri }}"; }
-              {% else %}
-              thumbnail_uri: function() { return null; }
-              {% endif %}
-            }{{ "," if not loop.last }}
-          {% endfor %}
-          {{ "," if not loop.last }}
-        {% endfor %}
-        {{ "," if not loop.last }}
-      {% endfor %}
-      };
-    </script>
-
-    <script>
-      var categories = {
-      {% for cat, subcats in results|dictsort %}
-        "{{ cat.id }}": {
-        {% for subcat, catresults in subcats|dictsort %}
-          "{{ subcat.id }}": [
-          {% for res in catresults %}
-            "{{ res.path|safe }}"{{ "," if not loop.last }}
-          {% endfor %}
-          ]{{ "," if not loop.last }}
-        {% endfor %}
-        }{{ "," if not loop.last }}
-      {% endfor %}
-      };
-
-      function show_rule_properties(rule) {
-        $(`.rule-properties[data-rule=${rule}]`).modal("show");
-      }
-
-      function download_result(path) {
-        var res = results[path];
-        saveAs(res.data_uri(), res.name);
-      }
-
-      function show_thumbnail(path) {
-        var res = results[path];
-        var modal = $("#thumbnail-modal");
-
-        modal.find(".modal-title").text(res.name);
-        modal.find(".modal-body img").attr("src", res.thumbnail_uri());
-        var link = modal.find(".modal-footer a.btn-download")
-          .attr(
-            "href", 
-            {% if mode_embedded %}
-            `javascript:download_result("${res.path}")`
-            {% else %}
-            res.data_uri
-            {% endif %}
-          ).attr("target", "_blank");
-        if(!res.name.endsWith(".html")) {
-          link.attr("download", res.name);
-        }
-        modal.modal('handleUpdate');
-        modal.modal("show");
-      }
-
-      function show_category(panel) {
-        panel.find(".results-table").each(function() {
-          var table = $(this);
-          
-          // stop if this is already a datatable
-          if ($.fn.DataTable.isDataTable(table)) {
-            return;
-          }
-
-          var cat = table.data("category");
-          var subcat = table.data("subcategory");
-
-          $(this).DataTable({
-            data: categories[cat][subcat].map(res => results[res]),
-            bAutoWidth: false,
-            columns: [
-              {
-                title: "File",
-                render: function(data, type, row) {
-                  var link = $("<a>", {
-                    target: "_blank",
-                    {% if mode_embedded %}
-                    href: `javascript:download_result("${row.path}")`
-                    {% else %}
-                    href: row.data_uri
-                    {% endif %}
-                  }).text(row.name);
-                  if(!row.filename.endsWith(".html")) {
-                    link.attr("download", row.filename);
-                  };
-
-                  return link.wrap("<span>").parent().html();
-                }
-              },
-              {
-                title: "Description",
-                render: function(data, type, row) {
-                  return row.caption;
-                }
-              },
-              {
-                title: "Job properties",
-                render: function(data, type, row) {
-                  if (type === 'display'){
-                    var desc = $("<dl>", { class: "row" });
-                    desc.append($("<dt>", { class: "col-sm-3" }).text("Rule"))
-                      .append(
-                        $(
-                          "<dd>", { class:"col-sm-9" })
-                            .append($("<a>", {href: `javascript:show_rule_properties("${row.job_properties.rule}")`})
-                            .text(row.job_properties.rule)
-                        )
-                      )
-                      .append($("<dt>", { class: "col-sm-3" }).text("Wildcards"))
-                      .append($("<dd>", { class: "col-sm-9" }).text(row.job_properties.wildcards || "-"))
-                      .append($("<dt>", { class: "col-sm-3" }).text("Parameters"))
-                      .append($("<dd>", { class: "col-sm-9" }).append($("<pre>").text(row.job_properties.params || "-")));
-                    return desc.wrap("<span>").parent().html();
-                  } else {
-                    return row.job_properties.rule;
-                  }
-                }
-              },
-              {
-                title: "Thumbnail",
-                sortable: false,
-                render: function(data, type, row) {
-                  if (type === 'display'){
-                    var thumbnail_uri = row.thumbnail_uri()
-                    if (thumbnail_uri) {
-                      var link = $("<a>", {
-                        href: `javascript:show_thumbnail("${row.path}")`
-                      }).append($("<img>", {
-                        src: thumbnail_uri,
-                        width: 200
-                      }));
-                      return link.wrap("<span>").parent().html();
-                    } else {
-                      return "";
-                    }
-                  } else {
-                    return "";
-                  }
-                }
-              },
-            ]
-          })
-        });
-      }
-
-      function show_panel(id) {
-        $(".panel").hide();
-        var loading_screen = $("#panel-loading-screen");
-        loading_screen.show();
-        var panel = $(`#${id}`);
-        if (panel.hasClass("category")) {
-          show_category(panel);
-        }
-        loading_screen.hide();
-        panel.show();
-      }
-
-      var rulegraph_spec = {
-        "$schema": "https://vega.github.io/schema/vega/v5.json",
-        "width": {{ rulegraph_width }},
-        "height": {{ rulegraph_height }},
-        "padding": 0,
-        "autosize": "none",
-
-        "signals": [
-          { "name": "cx", "update": "width / 2" },
-          { "name": "cy", "update": "height / 2" }
-        ],
-
-        "data": [
-          {
-            "name": "node-data",
-            "values": {{ rulegraph_nodes }}
-          },
-          {
-            "name": "link-data",
-            "values": {{ rulegraph_links }}
-          }
-        ],
-
-        "scales": [
-          {
-            "name": "color",
-            "type": "ordinal",
-            "range": {"scheme": "category20c"}
-          },
-          {
-            "name": "x",
-            "type": "linear"
-          },
-          {
-            "name": "y",
-            "type": "linear"
-          }
-        ],
-
-        "marks": [
-          {
-            "name": "nodes",
-            "type": "symbol",
-            "zindex": 1,
-            "from": {"data": "node-data"},
-            "encode": {
-              "enter": {
-                "fill": {"scale": "color", "field": "rule"},
-                "x": {"field": "fx", "scale": "x"},
-                "y": {"field": "fy", "scale": "y"},
-                "tooltip": { "value": "Click to show rule details." }
-              },
-              "update": {
-                "size": {"value": 100}
-              },
-              "hover": {
-                "size": {"value": 200}
-              }
-            },
-
-            "transform": [
-              {
-                "type": "force",
-                "iterations": 1,
-                "static": true,
-                "forces": [
-                  {
-                    "force": "link",
-                    "links": "link-data",
-                    "distance": 25
-                  }
-                ]
-              }
-            ]
-          },
-          {
-            "name": "labels",
-            "type": "text",
-            "zindex": 2,
-            "from": {"data": "node-data"},
-            "encode": {
-              "enter": {
-                "fill": {"value": "black"},
-                "fontWeight": {"value": "normal"},
-                "text": {"field": "rule"},
-                "x": {"field": "fx", "scale": "x"},
-                "y": {"field": "fy", "scale": "y"},
-                "dx": {"value": 5},
-                "dy": {"value": -5},
-              }
-            }
-          },
-          {
-            "type": "path",
-            "from": {"data": "link-data"},
-            "interactive": false,
-            "encode": {
-              "update": {
-                "stroke": {"value": "#ccc"},
-                "strokeWidth": {"value": 0.5}
-              }
-            },
-            "transform": [
-              {
-                "type": "linkpath", "shape": "diagonal",
-                "sourceX": "datum.source.x", "sourceY": "datum.source.y",
-                "targetX": "datum.target.x", "targetY": "datum.target.y"
-              }
-            ]
-          }
-        ]
-      };
-      vegaEmbed("#rulegraph", rulegraph_spec).then(function(ret) {
-        ret.view.addEventListener("click", function(event, item) {
-          if(item && "rule" in item.datum) {
-            var rule = item.datum.rule;
-            show_rule_properties(rule);
-          }
-        });
-      });
-
-
-      
-
-      var runtimes_spec = {
-        "$schema": "https://vega.github.io/schema/vega-lite/v3.json",
-        "description": "Runtimes of jobs.",
-        "data": {"values": {{ runtimes }}},
-        "mark": "point",
-        "encoding": {
-          "x": {"field": "runtime", "type": "quantitative",
-                "axis": {"title": "runtime [s]", "labelAngle": -90},
-                "scale": {"type": "log"}
-          },
-          "y": {"field": "rule", "type": "nominal"},
-          "color": {"value": "#007bff"}
-        }
-      };
-      vegaEmbed("#runtimes", runtimes_spec);
-
-      var timeline_spec = {
-        "$schema": "https://vega.github.io/schema/vega-lite/v3.json",
-        "description": "Timeline of jobs.",
-        "data": {
-          "values": {{ timeline }}
-        },
-        "mark": "point",
-        "encoding": {
-          "x": {
-            "field": "endtime", "type": "temporal",
-            "timeUnit": "yearmonthdatehoursminutes",
-            "axis": {
-              "labelAngle": -90,
-              "title": "creation date"
-            }
-          },
-          "y": {"field": "rule", "type": "nominal"},
-          "color": {"value": "#007bff"}
-        }
-      };
-      vegaEmbed("#timeline", timeline_spec);
-
-      $(".vega-actions a").addClass("btn btn-outline-secondary");
-      $(".vega-actions").addClass("btn-group");
-      
-      $("a.panel-link").click(function() {
-        $("a.nav-link.active").removeClass("active");
-        $(this).addClass("active");
-        var panelid = $(this).attr("data-panel");
-        show_panel(panelid);
-      })
-
-      $(document).ready(function() {
-        // Hide loading screen when document is ready.
-        setTimeout(function(){
-            $("#loading-screen").hide();
-        }, 2000);
-      });
-    </script>
-  </body>
-</html>
diff --git a/snakemake/report/rulegraph_spec.py b/snakemake/report/rulegraph_spec.py
new file mode 100644
index 000000000..eee2bb998
--- /dev/null
+++ b/snakemake/report/rulegraph_spec.py
@@ -0,0 +1,64 @@
+from functools import partial
+
+
+def rulegraph_spec(dag):
+    # get toposorting, and keep only one job of each rule per level
+    representatives = dict()
+
+    toposorted = [
+        get_representatives(level, representatives) for level in dag.toposorted()
+    ]
+
+    jobs = [job for level in toposorted for job in level]
+
+    nodes = [
+        {"rule": job.rule.name, "fx": 10, "fy": i * 50} for i, job in enumerate(jobs)
+    ]
+    idx = {job: i for i, job in enumerate(jobs)}
+
+    xmax = 100
+    ymax = max(node["fy"] for node in nodes)
+
+    _get_links = partial(get_links, jobs, dag, idx, nodes, representatives)
+
+    return (
+        {
+            "nodes": nodes,
+            "links": list(_get_links(direct=False)),
+            "links_direct": list(_get_links(direct=True)),
+        },
+        xmax,
+        ymax,
+    )
+
+
+def get_representatives(level: list, representatives: dict):
+    unique = dict()
+    for job in level:
+        if job.rule.name in unique:
+            representatives[job] = unique[job.rule.name]
+        else:
+            representatives[job] = job
+            unique[job.rule.name] = job
+    return sorted(unique.values(), key=lambda job: job.rule.name)
+
+
+def get_links(jobs, dag, idx, nodes, representatives, direct: bool):
+    for u in jobs:
+        for v in dag.dependencies[u]:
+            target = idx[u]
+            source = idx[representatives[v]]
+            if target - source == 1:
+                if not direct:
+                    continue
+            else:
+                if direct:
+                    continue
+
+            yield {
+                "target": target,
+                "source": source,
+                "sourcerule": nodes[source]["rule"],
+                "targetrule": nodes[target]["rule"],
+                "value": 1,
+            }
diff --git a/snakemake/report/template/__init__.py b/snakemake/report/template/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/snakemake/report/template/components/abstract_menu.js b/snakemake/report/template/components/abstract_menu.js
new file mode 100644
index 000000000..9a6cfa70f
--- /dev/null
+++ b/snakemake/report/template/components/abstract_menu.js
@@ -0,0 +1,28 @@
+'use strict';
+
+class AbstractMenu extends React.Component {
+    buttonProps = { className: "transition-all block hover:text-emerald-500 rounded hover:bg-slate-800 p-1 flex items-center gap-2" };
+    iconProps = { className: "text-emerald-500" };
+
+    constructor(props) {
+        super(props);
+    }
+
+    getMenuItem(label, iconName, onClick) {
+        console.log(label, onClick);
+        return e(
+            "li",
+            { key: label },
+            e(
+                "a",
+                { href: "#", onClick: onClick, ...this.buttonProps },
+                e(Icon, { iconName: iconName, ...this.iconProps }),
+                e(
+                    "span",
+                    {},
+                    label
+                )
+            )
+        );
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/abstract_results.js b/snakemake/report/template/components/abstract_results.js
new file mode 100644
index 000000000..fe51d294c
--- /dev/null
+++ b/snakemake/report/template/components/abstract_results.js
@@ -0,0 +1,143 @@
+'use strict';
+
+class AbstractResults extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        return e(
+            "table",
+            { className: "table-auto text-white text-sm w-full" },
+            e(
+                "thead",
+                {},
+                this.renderHeader(),
+            ),
+            e(
+                "tbody",
+                {},
+                this.renderEntries()
+            )
+        )
+    }
+
+    getResults() {
+        throw new Error("Unimplemented!");
+    }
+
+    getCategory() {
+        throw new Error("Unimplemented!");
+    }
+
+    getSubcategory() {
+        throw new Error("Unimplemented!");
+    }
+
+    getSearchTerm() {
+        throw new Error("Unimplemented!");
+    }
+
+    getLabels() {
+        return Array.from(new Set(this.getResults().map(function ([path, result]) { return Object.keys(result.labels) }).flat())).sort();
+    }
+
+    isLabelled() {
+        return this.getResults().every(function ([path, result]) {
+            return result.labels;
+        });
+    }
+
+    renderHeader() {
+        if (this.isLabelled()) {
+            return e(
+                "tr",
+                {},
+                this.getLabels().map(function (label) {
+                    return e(
+                        "th",
+                        { className: "text-left p-1 uppercase" },
+                        label
+                    )
+                }),
+                e(
+                    "th",
+                    { className: "text-right p-1 w-fit" },
+                )
+            )
+        } else {
+            return e(
+                "tr",
+                {},
+                e(
+                    "th",
+                    { className: "text-left p-1" },
+                    "Filename"
+                ),
+                e(
+                    "th",
+                    { className: "text-right p-1 w-fit" },
+                )
+            )
+        }
+    }
+
+    renderEntries() {
+        let app = this.props.app;
+        let labels = undefined;
+        if (this.isLabelled()) {
+            labels = this.getLabels();
+        }
+        return this.getResults().map(function ([path, entry]) {
+            let actions = e(
+                "td",
+                { className: "p-1 text-right" },
+                e(
+                    "div",
+                    { className: "inline-flex gap-1", role: "group" },
+                    e(
+                        ResultViewButton,
+                        { resultPath: path, app: app }
+                    ),
+                    e(
+                        Button,
+                        {
+                            href: "#",
+                            onClick: () => app.showResultInfo(path),
+                            iconName: "information-circle"
+                        }
+                    )
+                )
+            );
+
+            let entryLabels = undefined;
+            let key = undefined;
+            if (labels !== undefined) {
+                entryLabels = labels.map(function (label) {
+                    return e(
+                        "td",
+                        { className: "p-1" },
+                        entry.labels[label] || ""
+                    );
+                });
+                key = labels.join();
+            } else {
+                entryLabels = e(
+                    "td",
+                    { className: "p-1" },
+                    path
+                );
+                key = path;
+            }
+
+            return [
+                e(
+                    "tr",
+                    { key: key },
+                    entryLabels,
+                    actions
+                )
+            ];
+        })
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/app.js b/snakemake/report/template/components/app.js
new file mode 100644
index 000000000..2732e76dc
--- /dev/null
+++ b/snakemake/report/template/components/app.js
@@ -0,0 +1,54 @@
+'use strict';
+
+
+var app = undefined;
+
+
+class App extends React.Component {
+    constructor(props) {
+        super(props);
+        this.state = { hideNavbar: false, navbarMode: "menu", content: "rulegraph", ruleinfo: undefined, category: undefined, subcategory: undefined, searchTerm: undefined, resultPath: undefined, contentPath: undefined };
+        this.setView = this.setView.bind(this);
+        this.showCategory = this.showCategory.bind(this);
+        this.showResultInfo = this.showResultInfo.bind(this);
+        // store in global variable
+        app = this;
+    }
+
+    render() {
+        return [
+            e(Navbar, { key: "navbar", app: this }),
+            e(ContentDisplay, { key: "content", app: this })
+        ];
+    }
+
+    setView(view) {
+        this.setState({
+            hideNavbar: view.hideNavbar || this.hideNavbar,
+            navbarMode: view.navbarMode || this.state.navbarMode,
+            content: view.content || this.state.content,
+            ruleinfo: view.ruleinfo || this.state.ruleinfo,
+            category: view.category || this.state.category,
+            subcategory: view.subcategory || this.state.subcategory,
+            searchTerm: view.searchTerm || this.state.searchTerm,
+            resultPath: view.resultPath || this.state.resultPath,
+            contentPath: view.contentPath || this.state.contentPath,
+        })
+    }
+
+    showCategory(category) {
+        let subcategory = undefined;
+        let mode = "category";
+        if (isSingleSubcategory(category)) {
+            subcategory = Object.keys(categories[category])[0];
+            mode = "subcategory";
+        }
+        this.setView({ navbarMode: mode, category: category, subcategory: subcategory })
+    }
+
+    showResultInfo(resultPath) {
+        this.setView({ navbarMode: "resultinfo", resultPath: resultPath });
+    }
+}
+
+ReactDOM.render(e(App), document.querySelector('#app'));
\ No newline at end of file
diff --git a/snakemake/report/template/components/breadcrumbs.js b/snakemake/report/template/components/breadcrumbs.js
new file mode 100644
index 000000000..8796f0fe8
--- /dev/null
+++ b/snakemake/report/template/components/breadcrumbs.js
@@ -0,0 +1,106 @@
+'use strict';
+
+class Breadcrumbs extends React.Component {
+    constructor(props) {
+        super(props);
+        this.state = { searchTerm: "" };
+    }
+
+    render() {
+        return e(
+            "nav",
+            { className: "text-white whitespace-nowrap align-middle text-xs m-2 p-2 rounded bg-slate-800 min-w-fit" },
+            e(
+                "ol",
+                { className: "list-reset flex items-center gap-1" },
+                this.renderEntries(),
+                this.renderSearch()
+            )
+        )
+    }
+
+    renderEntries() {
+        let entries = this.props.entries.filter(function (entry) {
+            return entry !== undefined
+        });
+
+        return entries.map(function (entry, index) {
+            const isLast = index == entries.length - 1;
+
+            let content = entry.name;
+            if (entry.icon !== undefined) {
+                content = e(
+                    Icon,
+                    { iconName: entry.icon }
+                )
+            }
+
+
+            let link = content;
+            if (entry.func !== undefined) {
+                link = e(
+                    "a",
+                    { className: "hover:text-emerald-600", href: "#", onClick: entry.func },
+                    content
+                );
+            }
+
+            let props = {};
+            if (isLast) {
+                props = { className: "grow" }
+            }
+
+            let item = e(
+                "li",
+                { key: entry.name, ...props },
+                link
+            );
+            if (!isLast) {
+                item = [
+                    item,
+                    e(
+                        "li",
+                        { key: `sep-${index}` },
+                        e(
+                            Icon,
+                            { iconName: "chevron-right", className: "text-emerald-500" }
+                        )
+                    )
+                ];
+            }
+
+            return item;
+        });
+    }
+
+    renderSearch() {
+        let _this = this;
+        return e(
+            "li",
+            { className: "flex-0" },
+            e(
+                "input",
+                {
+                    type: "text",
+                    placeholder: "Search...",
+                    title: "Search all results. Prefix with 're:' to perform regexp search.",
+                    size: 10,
+                    className: "border-0 bg-transparent text-white h-3 w-fit text-xs text-right form-control rounded",
+                    onKeyPress: function (event) {
+                        if (event.charCode == 13) {
+                            event.preventDefault();
+                            _this.showSearchResults();
+                        }
+                    },
+                    onChange: function (event) {
+                        _this.setState({ searchTerm: event.target.value });
+                    }
+                },
+            )
+        )
+    }
+
+    showSearchResults() {
+        this.props.setView({ navbarMode: "searchresults", searchTerm: this.state.searchTerm })
+    }
+}
diff --git a/snakemake/report/template/components/button.js b/snakemake/report/template/components/button.js
new file mode 100644
index 000000000..016f9aed5
--- /dev/null
+++ b/snakemake/report/template/components/button.js
@@ -0,0 +1,15 @@
+'use strict';
+
+class Button extends React.Component {
+    render() {
+        return this.renderButton(this.props.iconName, this.props);
+    }
+
+    renderButton(iconName, props) {
+        return e(
+            "a",
+            { type: "button", className: `transition-all inline-block p-1 text-emerald-500 rounded hover:bg-slate-800`, ...props },
+            e(Icon, { iconName: iconName })
+        );
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/category.js b/snakemake/report/template/components/category.js
new file mode 100644
index 000000000..3b99e633f
--- /dev/null
+++ b/snakemake/report/template/components/category.js
@@ -0,0 +1,22 @@
+'use strict';
+
+class Category extends AbstractMenu {
+    render() {
+        return e(
+            "ul",
+            {},
+            this.getSubcategoryMenuitems()
+        )
+    }
+
+    showSubcategory(subcategory) {
+        this.props.setView({ navbarMode: "subcategory", category: this.props.category, subcategory: subcategory })
+    }
+
+    getSubcategoryMenuitems() {
+        let _this = this
+        return Object.keys(categories[this.props.category]).map(function (subcategory) {
+            return _this.getMenuItem(subcategory, "folder", () => _this.showSubcategory(subcategory));
+        });
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/common.js b/snakemake/report/template/components/common.js
new file mode 100644
index 000000000..20690e20a
--- /dev/null
+++ b/snakemake/report/template/components/common.js
@@ -0,0 +1,18 @@
+const e = React.createElement;
+
+function isNoResults() {
+    return Object.keys(categories).length == 0;
+}
+
+function isSingleCategory() {
+    return Object.keys(categories).length == 1;
+}
+
+function isSingleDefaultCategory() {
+    return isSingleCategory() && Object.keys(categories)[0] == "Other";
+}
+
+function isSingleSubcategory(category) {
+    console.log(categories, category);
+    return Object.keys(categories[category]).length == 1;
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/content.js b/snakemake/report/template/components/content.js
new file mode 100644
index 000000000..aa3b089b8
--- /dev/null
+++ b/snakemake/report/template/components/content.js
@@ -0,0 +1,65 @@
+'use strict';
+
+
+
+class ContentDisplay extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        return e(
+            "div",
+            { className: "flex items-center justify-center min-h-screen z-0" },
+            this.renderContent()
+        )
+    }
+
+    renderContent() {
+        let setView = this.props.app.setView;
+        switch (this.props.app.state.content) {
+            case "rulegraph":
+                return e(
+                    "div",
+                    { className: "flex gap-3 p-3 items-start" },
+                    e(RuleGraph, { setView: setView }),
+                    e(
+                        "div",
+                        {},
+                        e(
+                            "div",
+                            {
+                                className: "prose prose-sm max-w-lg",
+                                dangerouslySetInnerHTML: { __html: workflow_desc }
+                            }
+                        ),
+                        e(
+                            "div",
+                            { id: "brand" }
+                        )
+                    )
+                );
+            case "stats":
+                return e(
+                    "div",
+                    { className: "p-3" },
+                    e(Stats)
+                );
+            case "img":
+                return e(
+                    "div",
+                    { className: "p-3" },
+                    e(
+                        "img",
+                        { src: this.props.app.state.contentPath }
+                    )
+                );
+            case "html":
+            case "pdf":
+                return e(
+                    "iframe",
+                    { src: this.props.app.state.contentPath, className: "w-screen h-screen" }
+                )
+        }
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/icon.js b/snakemake/report/template/components/icon.js
new file mode 100644
index 000000000..f8fd391bf
--- /dev/null
+++ b/snakemake/report/template/components/icon.js
@@ -0,0 +1,62 @@
+'use strict';
+
+class Icon extends React.Component {
+    // paths are imported from https://heroicons.com
+    paths = {
+        "chevron-right": [
+            { rule: "evenodd", path: "M7.293 14.707a1 1 0 010-1.414L10.586 10 7.293 6.707a1 1 0 011.414-1.414l4 4a1 1 0 010 1.414l-4 4a1 1 0 01-1.414 0z" }
+        ],
+        "menu": [
+            { rule: "evenodd", path: "M3 5a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 10a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 15a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1z" }
+        ],
+        "x": [
+            { rule: "evenodd", path: "M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" }
+        ],
+        "arrow-down": [
+            { rule: "evenodd", path: "M16.707 10.293a1 1 0 010 1.414l-6 6a1 1 0 01-1.414 0l-6-6a1 1 0 111.414-1.414L9 14.586V3a1 1 0 012 0v11.586l4.293-4.293a1 1 0 011.414 0z" }
+        ],
+        "arrow-circle-left": [
+            { rule: "evenodd", path: "M10 18a8 8 0 100-16 8 8 0 000 16zm.707-10.293a1 1 0 00-1.414-1.414l-3 3a1 1 0 000 1.414l3 3a1 1 0 001.414-1.414L9.414 11H13a1 1 0 100-2H9.414l1.293-1.293z" }
+        ],
+        "arrow-circle-right": [
+            { rule: "evenodd", path: "M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-8.707l-3-3a1 1 0 00-1.414 1.414L10.586 9H7a1 1 0 100 2h3.586l-1.293 1.293a1 1 0 101.414 1.414l3-3a1 1 0 000-1.414z" }
+        ],
+        "information-circle": [
+            { rule: "evenodd", path: "M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" }
+        ],
+        "home": [
+            { rule: "evenodd", path: "M10.707 2.293a1 1 0 00-1.414 0l-7 7a1 1 0 001.414 1.414L4 10.414V17a1 1 0 001 1h2a1 1 0 001-1v-2a1 1 0 011-1h2a1 1 0 011 1v2a1 1 0 001 1h2a1 1 0 001-1v-6.586l.293.293a1 1 0 001.414-1.414l-7-7z" }
+        ],
+        "share": [
+            { rule: "evenodd", path: "M15 8a3 3 0 10-2.977-2.63l-4.94 2.47a3 3 0 100 4.319l4.94 2.47a3 3 0 10.895-1.789l-4.94-2.47a3.027 3.027 0 000-.74l4.94-2.47C13.456 7.68 14.19 8 15 8z" }
+        ],
+        "chart": [
+            { rule: "evenodd", path: "M2 11a1 1 0 011-1h2a1 1 0 011 1v5a1 1 0 01-1 1H3a1 1 0 01-1-1v-5zM8 7a1 1 0 011-1h2a1 1 0 011 1v9a1 1 0 01-1 1H9a1 1 0 01-1-1V7zM14 4a1 1 0 011-1h2a1 1 0 011 1v12a1 1 0 01-1 1h-2a1 1 0 01-1-1V4z" }
+        ],
+        "folder": [
+            { rule: "evenodd", path: "M2 6a2 2 0 012-2h5l2 2h5a2 2 0 012 2v6a2 2 0 01-2 2H4a2 2 0 01-2-2V6z" }
+        ],
+        "eye": [
+            { rule: undefined, path: "M10 12a2 2 0 100-4 2 2 0 000 4z" },
+            { rule: "evenodd", path: "M.458 10C1.732 5.943 5.522 3 10 3s8.268 2.943 9.542 7c-1.274 4.057-5.064 7-9.542 7S1.732 14.057.458 10zM14 10a4 4 0 11-8 0 4 4 0 018 0z" },
+        ]
+    }
+
+    render() {
+        return e(
+            "svg",
+            { xmlns: "http://www.w3.org/2000/svg", className: `h-4 w-4 ${this.props.className}`, viewBox: "0 0 20 20", fill: "currentColor", },
+            this.renderPath().map(function (item, index) {
+
+                return e(
+                    "path",
+                    { fillRule: item.rule, clipRule: item.rule, d: item.path, key: index }
+                );
+            })
+        )
+    }
+
+    renderPath() {
+        return this.paths[this.props.iconName];
+    }
+}
diff --git a/snakemake/report/template/components/list_heading.js b/snakemake/report/template/components/list_heading.js
new file mode 100644
index 000000000..3a485c1ad
--- /dev/null
+++ b/snakemake/report/template/components/list_heading.js
@@ -0,0 +1,11 @@
+'use strict';
+
+class ListHeading extends React.Component {
+    render() {
+        return e(
+            "li",
+            { className: "uppercase font-bold p-1" },
+            this.props.text
+        );
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/list_item.js b/snakemake/report/template/components/list_item.js
new file mode 100644
index 000000000..cc377cf5b
--- /dev/null
+++ b/snakemake/report/template/components/list_item.js
@@ -0,0 +1,15 @@
+'use strict';
+
+class ListItem extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        return e(
+            "li",
+            { className: "p-1", ...this.props },
+            this.props.children
+        );
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/menu.js b/snakemake/report/template/components/menu.js
new file mode 100644
index 000000000..7b1f3a967
--- /dev/null
+++ b/snakemake/report/template/components/menu.js
@@ -0,0 +1,62 @@
+'use strict';
+
+class Menu extends AbstractMenu {
+    constructor(props) {
+        super(props);
+        this.showWorkflow = this.showWorkflow.bind(this);
+        this.showStatistics = this.showStatistics.bind(this);
+    }
+
+    render() {
+        return e(
+            "ul",
+            {},
+            this.getHeading(),
+            this.getMenuItem("Workflow", "share", this.showWorkflow),
+            this.getMenuItem("Statistics", "chart", this.showStatistics),
+            this.getCategoryMenumitems()
+        )
+    }
+
+    showWorkflow() {
+        this.props.app.setView({ content: "rulegraph" });
+    }
+
+    showStatistics() {
+        this.props.app.setView({ content: "stats" });
+    }
+
+    getHeading() {
+        if (isSingleCategory()) {
+            return [];
+        } else {
+            return e(
+                ListHeading,
+                { text: "General" }
+            )
+        }
+    }
+
+    getCategoryMenumitems() {
+        let _this = this;
+        let app = this.props.app;
+        if (isSingleCategory()) {
+            let category = Object.keys(categories)[0];
+            return this.getMenuItem("Results", "folder", () => app.showCategory(category));
+        } else if (isNoResults()) {
+            return [];
+        } else {
+            let items = [e(
+                "li",
+                { key: "Results", className: "uppercase font-bold p-1 mt-2" },
+                "Results"
+            )];
+
+            items.push(...Object.keys(categories).map(function (category) {
+                return _this.getMenuItem(category, "folder", () => app.showCategory(category));
+            }));
+
+            return items;
+        }
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/navbar.js b/snakemake/report/template/components/navbar.js
new file mode 100644
index 000000000..f1276df00
--- /dev/null
+++ b/snakemake/report/template/components/navbar.js
@@ -0,0 +1,239 @@
+'use strict';
+
+
+class Navbar extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        let translateNavbar = "";
+        let translateShowButton = "-translate-x-full"
+        if (this.props.app.state.hideNavbar) {
+            translateNavbar = "-translate-x-full";
+            translateShowButton = ""
+        }
+        return [
+            e(
+                "div",
+                { className: `fixed z-50 p-2 transition-translate bg-white/70 backdrop-blur-sm rounded-br-lg ${translateShowButton}` },
+                this.getShowButton()
+            ),
+            e(
+                "nav",
+                { className: `fixed z-50 transition-all ${translateNavbar} ${this.getWidth()} text-white text-sm bg-slate-900/70 backdrop-blur-sm h-screen overflow-auto` },
+                e(
+                    "h1",
+                    { className: "sticky relative top-0 left-0 bg-white/80 backdrop-blur-sm text-slate-700 text-l tracking-wide px-3 py-1 mb-1 flex items-center" },
+                    e(
+                        "img",
+                        { src: logo_uri, className: "h-4" }
+                    ),
+                    e(
+                        "span",
+                        { className: "font-bold mx-1" },
+                        "Snakemake"
+                    ),
+                    e(
+                        "span",
+                        { className: "grow mr-5" },
+                        "Report"
+                    ),
+                    this.getHideButton()
+                ),
+                e(
+                    "div",
+                    {},
+                    this.renderBreadcrumbs(),
+                    e(
+                        "div",
+                        { className: "p-3" },
+                        this.renderContent()
+                    )
+                )
+            )
+        ];
+    }
+
+    getHideButton() {
+        let setView = this.props.app.setView;
+        return e(
+            "a",
+            {
+                type: "button",
+                className: "bg-transparent hover:text-emerald-500",
+                href: "#",
+                onClick: () => setView({ hideNavbar: true })
+            },
+            e(
+                Icon,
+                { iconName: "x" }
+            )
+        )
+    }
+
+    getShowButton() {
+        let setView = this.props.app.setView;
+        return e(
+            "a",
+            {
+                type: "button",
+                href: "#",
+                className: "bg-transparent hover:text-emerald-500",
+                onClick: () => setView({ hideNavbar: false })
+            },
+            e(
+                Icon,
+                { iconName: "menu" }
+            )
+        )
+    }
+
+    renderContent() {
+        let setView = this.props.app.setView;
+        switch (this.props.app.state.navbarMode) {
+            case "menu":
+                return e(Menu, { app: this.props.app });
+            case "category":
+                return e(Category, { setView: setView, category: this.props.app.state.category });
+            case "subcategory":
+                return e(Subcategory, { app: this.props.app, setView: setView, category: this.props.app.state.category, subcategory: this.props.app.state.subcategory });
+            case "searchresults":
+                return e(SearchResults, { app: this.props.app, setView: setView, searchTerm: this.props.app.state.searchTerm });
+            case "resultinfo":
+                return e(ResultInfo, { resultPath: this.props.app.state.resultPath, app: this.props.app });
+            case "ruleinfo":
+                return e(RuleInfo, { rule: this.props.app.state.ruleinfo });
+        }
+    }
+
+    renderBreadcrumbs() {
+        let setView = this.props.app.setView;
+        switch (this.props.app.state.navbarMode) {
+            case "menu":
+                return e(
+                    Breadcrumbs,
+                    { entries: [this.getMenuBreadcrumb()], setView: setView }
+                );
+            case "category":
+                return e(
+                    Breadcrumbs,
+                    { entries: [this.getMenuBreadcrumb(), this.getResultBreadcrumb(), this.getCategoryBreadcrumb()], setView: setView }
+                );
+            case "subcategory":
+                return e(
+                    Breadcrumbs,
+                    { entries: [this.getMenuBreadcrumb(), this.getResultBreadcrumb(), this.getCategoryBreadcrumb(), this.getSubcategoryBreadcrumb()], setView: setView }
+                );
+            case "resultinfo":
+                return e(
+                    Breadcrumbs,
+                    { entries: [this.getMenuBreadcrumb(), this.getResultBreadcrumb(), this.getCategoryBreadcrumb(), this.getSubcategoryBreadcrumb(), this.getSearchResultsBreadcrumb(), this.getResultinfoBreadcrumb()], setView: setView }
+                );
+            case "searchresults":
+                return e(
+                    Breadcrumbs,
+                    { entries: [this.getMenuBreadcrumb(), this.getSearchResultsBreadcrumb()], setView: setView }
+                )
+            case "ruleinfo":
+                if (this.props.app.state.resultPath) {
+                    return e(
+                        Breadcrumbs,
+                        { entries: [this.getMenuBreadcrumb(), this.getResultBreadcrumb(), this.getCategoryBreadcrumb(), this.getSubcategoryBreadcrumb(), this.getSearchResultsBreadcrumb(), this.getResultinfoBreadcrumb(), this.getRuleBreadcrumb(), this.getRuleinfoBreadcrumb()], setView: setView }
+                    )
+                } else {
+                    return e(
+                        Breadcrumbs,
+                        { entries: [this.getMenuBreadcrumb(), this.getRuleBreadcrumb(), this.getRuleinfoBreadcrumb()], setView: setView }
+                    )
+                }
+        }
+    }
+
+    getMenuBreadcrumb() {
+        let setView = this.props.app.setView;
+        return { name: "menu", icon: "home", func: function () { setView({ navbarMode: "menu", category: undefined, subcategory: undefined }) } };
+    }
+
+    getRuleBreadcrumb() {
+        return { name: "Rule", func: undefined }
+    }
+
+    getRuleinfoBreadcrumb() {
+        return { name: this.props.app.state.ruleinfo, func: undefined }
+    }
+
+    getCategoryBreadcrumb() {
+        let category = this.props.app.state.category;
+        if (category === undefined) {
+            return undefined;
+        }
+        let subcategory = undefined;
+        let mode = "category";
+        if (isSingleSubcategory(category)) {
+            subcategory = this.props.app.state.subcategory;
+            mode = "subcategory";
+        }
+
+        let name = this.props.app.state.category;
+        if (isSingleDefaultCategory()) {
+            name = "Results";
+        }
+        let setView = this.props.app.setView;
+        return { name: name, func: function () { setView({ navbarMode: mode, category: category, subcategory: subcategory }) } };
+    }
+
+    getSubcategoryBreadcrumb() {
+        let subcategory = this.props.app.state.subcategory;
+        let category = this.props.app.state.category;
+        if (subcategory === undefined || isSingleSubcategory(category)) {
+            return undefined;
+        }
+        let setView = this.props.app.setView;
+        return { name: this.props.app.state.subcategory, func: function () { setView({ navbarMode: "subcategory", category: category, subcategory: subcategory }) } };
+    }
+
+    getResultBreadcrumb() {
+        if (isSingleDefaultCategory()) {
+            return undefined;
+        }
+        return { name: "Results", func: undefined };
+    }
+
+    getSearchResultsBreadcrumb() {
+        let searchTerm = this.props.app.state.searchTerm;
+        if (searchTerm === undefined) {
+            return undefined;
+        }
+        let setView = this.props.app.setView;
+        return {
+            name: "Search results", func: function () {
+                setView({ navbarMode: "searchresults", searchTerm: searchTerm })
+            }
+        };
+    }
+
+    getResultinfoBreadcrumb() {
+        let setView = this.props.app.setView;
+        return {
+            name: this.props.app.state.resultPath, func: function () { setView({ navbarMode: "resultinfo" }) }
+        };
+    }
+
+    getWidth() {
+        switch (this.props.app.state.navbarMode) {
+            case "menu":
+                return "w-1/5 min-w-fit"
+            case "category":
+            case "subcategory":
+            case "searchresults":
+                return "w-1/4 min-w-fit"
+            case "resultinfo":
+                return "w-1/2"
+            case "ruleinfo":
+                return "w-1/2"
+            default:
+                return "w-1/5 min-w-fit"
+        }
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/result_info.js b/snakemake/report/template/components/result_info.js
new file mode 100644
index 000000000..5062a1886
--- /dev/null
+++ b/snakemake/report/template/components/result_info.js
@@ -0,0 +1,209 @@
+'use strict';
+
+class ResultInfo extends React.Component {
+    render() {
+        return e(
+            "ul",
+            {},
+            this.getDescriptor(),
+            this.getCaption(),
+            this.getSize(),
+            this.getRule(),
+            this.getParamsAndWildcards(),
+        )
+    }
+
+    getResult() {
+        return results[this.props.resultPath];
+    }
+
+    getDescriptor() {
+        let result = this.getResult();
+        let resultPath = this.props.resultPath;
+        let app = this.props.app;
+
+        if (result.labels) {
+            const labels = Object.keys(result.labels).sort();
+            return [
+                e(
+                    ListItem,
+                    {},
+                    e(
+                        "table",
+                        { className: "table-auto text-white text-sm items-center" },
+                        e(
+                            "thead",
+                            {},
+                            e(
+                                "tr",
+                                {},
+                                labels.map(function (label) {
+                                    return e(
+                                        "th",
+                                        { className: "text-left uppercase pr-2" },
+                                        label
+                                    );
+                                }),
+                                e("th", {})
+                            )
+                        ),
+                        e(
+                            "tbody",
+                            {},
+                            e(
+                                "tr",
+                                {},
+                                labels.map(function (label, index) {
+                                    const value = result.labels[label];
+                                    let item = value;
+                                    if (index == labels.length - 1) {
+                                        item = e(
+                                            "span",
+                                            { className: "flex items-center gap-2" },
+                                            e("span", {}, value),
+                                            e(
+                                                ResultViewButton,
+                                                { resultPath: resultPath, app: app }
+                                            )
+                                        );
+                                    }
+
+                                    return e(
+                                        "td",
+                                        { className: "pr-2" },
+                                        item
+                                    );
+                                }),
+                            )
+                        )
+                    )
+                )
+            ];
+        } else {
+            return [
+                e(
+                    ListHeading,
+                    { text: "Path", key: "result" }
+                ),
+                e(
+                    ListItem,
+                    { key: "path" },
+                    e(
+                        "span",
+                        { className: "flex items-center gap-2" },
+                        e(
+                            "span",
+                            {},
+                            this.props.resultPath
+                        ),
+                        e(
+                            ResultViewButton,
+                            { resultPath: this.props.resultPath, app: app }
+                        )
+                    )
+                ),
+            ];
+        }
+    }
+
+    getCaption() {
+        const caption = this.getResult().caption;
+        if (caption) {
+            return [
+                e(
+                    ListHeading,
+                    { key: "caption-heading", text: "Description" }
+                ),
+                e(
+                    ListItem,
+                    {
+                        key: "caption",
+                        className: "p-1 prose prose-invert prose-sm",
+                        dangerouslySetInnerHTML: { __html: caption }
+                    }
+                )
+            ];
+        } else {
+            return [];
+        }
+    }
+
+    getRule() {
+        const setView = this.props.app.setView;
+        const rule = this.getResult().job_properties.rule;
+        return [
+            e(
+                ListHeading,
+                { key: "rule-heading", text: "Snakemake rule" }
+            ),
+            e(
+                ListItem,
+                { key: "rulename" },
+                e(
+                    "span",
+                    { className: "flex items-center gap-1" },
+                    [
+                        e(
+                            "span",
+                            {},
+                            rule
+                        ),
+                        e(
+                            "a",
+                            {
+                                type: "button",
+                                href: "#",
+                                className: `transition-all inline-block p-1 text-emerald-500 rounded hover:bg-slate-800`,
+                                onClick: () => setView({ navbarMode: "ruleinfo", ruleinfo: rule })
+                            },
+                            e(Icon, { iconName: "information-circle" })
+                        )
+                    ]
+                )
+            )
+        ]
+    }
+
+    getParamsAndWildcards() {
+        const jobProperties = this.getResult().job_properties;
+        if (jobProperties.params || jobProperties.wildcards) {
+            let items = [
+                e(
+                    ListHeading,
+                    { key: "params-heading", text: "Job parameters" }
+                ),
+            ];
+            if (jobProperties.wildcards) {
+                items.push(e(
+                    ListItem,
+                    { key: "wildcards" },
+                    jobProperties.wildcards
+                ));
+            }
+            if (jobProperties.params) {
+                items.push(e(
+                    ListItem,
+                    { key: "params" },
+                    jobProperties.params
+                ));
+            }
+            return items;
+        } else {
+            return [];
+        }
+    }
+
+    getSize() {
+        return [
+            e(
+                ListHeading,
+                { key: "size-heading", text: "Size" }
+            ),
+            e(
+                ListItem,
+                { key: "size" },
+                this.getResult().size
+            )
+        ];
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/result_view_button.js b/snakemake/report/template/components/result_view_button.js
new file mode 100644
index 000000000..db9da54a4
--- /dev/null
+++ b/snakemake/report/template/components/result_view_button.js
@@ -0,0 +1,73 @@
+'use strict';
+
+class ResultViewButton extends React.Component {
+
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        let result = results[this.props.resultPath];
+
+        return this.getViewButton(this.props.resultPath, result);
+    }
+
+    getViewButton(resultPath, entry) {
+        const mimeType = this.getResultMimeType(resultPath);
+        let setView = this.props.app.setView;
+
+        let props = undefined;
+
+        switch (mimeType) {
+            case "image/svg+xml":
+            case "image/png":
+            case "image/jpeg":
+                props = {
+                    href: "#",
+                    onClick: function () {
+                        setView({
+                            content: "img",
+                            contentPath: entry.data_uri
+                        })
+                    }
+                };
+                break;
+            case "text/html":
+                props = {
+                    href: "#",
+                    onClick: function () {
+                        setView({
+                            content: "html",
+                            contentPath: entry.data_uri
+                        })
+                    }
+                };
+                break;
+            case "application/pdf":
+                props = {
+                    href: "#",
+                    onClick: function () {
+                        setView({
+                            content: "pdf",
+                            contentPath: entry.data_uri
+                        })
+                    }
+                };
+                break;
+            default:
+                props = {
+                    href: entry.data_uri,
+                    download: entry.name,
+                    target: "_blank"
+                };
+        }
+        return e(
+            Button,
+            { iconName: "eye", ...props }
+        );
+    }
+
+    getResultMimeType(resultPath) {
+        return results[resultPath].mime_type
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/rule_graph.js b/snakemake/report/template/components/rule_graph.js
new file mode 100644
index 000000000..63ed76646
--- /dev/null
+++ b/snakemake/report/template/components/rule_graph.js
@@ -0,0 +1,34 @@
+'use strict';
+
+class RuleGraph extends React.Component {
+    constructor(props) {
+        super(props);
+        this.showRuleProperties = this.showRuleProperties.bind(this);
+    }
+
+    render() {
+        return e(
+            "div",
+            { id: "rulegraph" }
+        )
+    }
+
+    componentDidMount() {
+        let showRuleProperties = this.showRuleProperties;
+        vegaEmbed("#rulegraph", rulegraph_spec).then(function (ret) {
+            ret.view.addEventListener("click", function (event, item) {
+                if (item && "rule" in item.datum) {
+                    var rule = item.datum.rule;
+                    showRuleProperties(rule);
+                }
+            });
+        });
+    }
+
+    showRuleProperties(rule) {
+        this.props.setView({
+            navbarMode: "ruleinfo",
+            ruleinfo: rule
+        });
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/rule_info.js b/snakemake/report/template/components/rule_info.js
new file mode 100644
index 000000000..d2b942dac
--- /dev/null
+++ b/snakemake/report/template/components/rule_info.js
@@ -0,0 +1,83 @@
+'use strict';
+
+class RuleInfo extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        let rule = rules[this.props.rule];
+        if (rule === undefined) {
+            return e(
+                "span",
+                { className: "p-1" },
+                `No metadata available for rule ${this.props.rule}`
+            );
+        }
+
+        return e(
+            "ol",
+            {},
+            this.renderItems("Input", rule.input, {}, false),
+            this.renderItems("Output", rule.output),
+            this.renderSoftware(),
+            this.renderItems("Container", [rule.container]),
+            this.renderCode(),
+        )
+    }
+
+    renderSoftware() {
+        let rule = rules[this.props.rule];
+        if (rule.conda_env) {
+            return this.renderItems("Software", rule.conda_env.dependencies);
+        } else {
+            return [];
+        }
+    }
+
+    renderCode() {
+        let rule = rules[this.props.rule];
+        if (rule.code.length) {
+            return [
+                e(
+                    ListHeading,
+                    { key: "code-heading", text: "Code" }
+                ),
+                e(
+                    ListItem,
+                    {
+                        key: "code",
+                        className: "p-1",
+                        dangerouslySetInnerHTML: { __html: rule.code }
+                    }
+                )
+            ];
+        } else {
+            return [];
+        }
+    }
+
+    renderItems(heading, items, props = {}, margin = true) {
+        if (items.length && items.every((item) => item !== undefined)) {
+            let headingProps = {};
+            if (margin) {
+                headingProps = { className: "" }
+            }
+            return [
+                e(
+                    ListHeading,
+                    { text: heading, ...headingProps }
+                ),
+                items.map(function (item) {
+                    return e(
+                        ListItem,
+                        props,
+                        item
+                    );
+                })
+            ];
+        } else {
+            return [];
+        }
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/search_results.js b/snakemake/report/template/components/search_results.js
new file mode 100644
index 000000000..0447ba31d
--- /dev/null
+++ b/snakemake/report/template/components/search_results.js
@@ -0,0 +1,47 @@
+'use strict';
+
+class SearchResults extends AbstractResults {
+    getSearchFunc() {
+        let term = this.props.searchTerm;
+        if (term.startsWith("re:")) {
+            let regexp = new RegExp(term.slice(3));
+            return function (text) {
+                return regexp.test(text);
+            }
+        } else {
+            return function (text) {
+                return text.includes(term);
+            }
+        }
+    }
+
+    getResults() {
+        let searchFunc = this.getSearchFunc();
+        return Object.entries(results).map(function ([path, result]) {
+            if (searchFunc(path)) {
+                return [path, result];
+            }
+            const columns = result.columns || [];
+            for (const columnValue in columns) {
+                if (searchFunc(columnValue)) {
+                    return [path, result];
+                }
+            }
+            return undefined;
+        }).filter(function (item) {
+            return item !== undefined;
+        })
+    }
+
+    getCategory() {
+        return undefined;
+    }
+
+    getSubcategory() {
+        return undefined;
+    }
+
+    getSearchTerm() {
+        return this.props.searchTerm;
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/stats.js b/snakemake/report/template/components/stats.js
new file mode 100644
index 000000000..4fada01a4
--- /dev/null
+++ b/snakemake/report/template/components/stats.js
@@ -0,0 +1,27 @@
+'use strict';
+
+class Stats extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        return e(
+            "div",
+            { className: "flex" },
+            e(
+                "div",
+                { id: "runtimes" }
+            ),
+            e(
+                "div",
+                { id: "timeline" }
+            )
+        )
+    }
+
+    componentDidMount() {
+        vegaEmbed("#runtimes", runtimes_spec);
+        vegaEmbed("#timeline", timeline_spec);
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/components/subcategory.js b/snakemake/report/template/components/subcategory.js
new file mode 100644
index 000000000..9eae67d6a
--- /dev/null
+++ b/snakemake/report/template/components/subcategory.js
@@ -0,0 +1,21 @@
+'use strict';
+
+class Subcategory extends AbstractResults {
+    getResults() {
+        return categories[this.props.category][this.props.subcategory].map(function (path) {
+            return [path, results[path]];
+        });
+    }
+
+    getCategory() {
+        return this.props.category;
+    }
+
+    getSubcategory() {
+        return this.props.subcategory;
+    }
+
+    getSearchTerm() {
+        return undefined;
+    }
+}
\ No newline at end of file
diff --git a/snakemake/report/template/index.html.jinja2 b/snakemake/report/template/index.html.jinja2
new file mode 100644
index 000000000..1decc2efa
--- /dev/null
+++ b/snakemake/report/template/index.html.jinja2
@@ -0,0 +1,99 @@
+<!doctype html>
+
+<html lang="en">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+    <meta name="description" content="">
+    <meta name="author" content="">
+    <title>Snakemake Report</title>
+
+    <script>{{ "https://cdn.tailwindcss.com?plugins=forms,typography"|get_resource_as_string }}</script>
+    <style>{{ pygments_css|safe }}</style>
+    <style>{{ "style.css"|get_resource_as_string }}</style>
+
+    {% if custom_stylesheet is not none %}
+    <style>{{ custom_stylesheet }}</style>
+    {% endif %}
+</head>
+
+<body>
+
+    <div id="loading-screen">
+      <p id="loading-animation">Loading Snakemake Report...</p>
+      <p id="jswarning">Please enable Javascript in your browser to see this report.</p>
+    </div>
+    <script>
+    document.querySelector('#loading-screen #jswarning').style.display = "none";
+    </script>
+
+    <div id="app">
+    </div>
+
+    <script>{{"https://unpkg.com/react@17/umd/react.development.js"|get_resource_as_string}}</script>
+    <script>{{"https://unpkg.com/react-dom@17/umd/react-dom.development.js"|get_resource_as_string}}</script>
+    <script>{{"https://cdnjs.cloudflare.com/ajax/libs/vega/5.21.0/vega.js"|get_resource_as_string}}</script>
+    <script>{{"https://cdnjs.cloudflare.com/ajax/libs/vega-lite/5.2.0/vega-lite.js"|get_resource_as_string}}</script>
+    <script>{{"https://cdnjs.cloudflare.com/ajax/libs/vega-embed/6.20.8/vega-embed.js"|get_resource_as_string}}</script>
+
+    <script id="workflow-desc">
+    var workflow_desc = {{workflow_desc}};
+    </script>
+
+    <script id="results">
+    var results = {{results}};
+    </script>
+
+    <script id="categories">
+    var categories = {{categories}};
+    </script>
+
+    <script id="rulegraph">
+    var rulegraph_spec = {{rulegraph}};
+    </script>
+
+    <script id="runtimes">
+    var runtimes_spec = {{runtimes}};
+    </script>
+
+    <script id="timeline">
+    var timeline_spec = {{timeline}};
+    </script>
+
+    <script id="rules">
+    var rules = {{rules}};
+    </script>
+
+    <script id="logo">
+    var logo_uri = "{{logo}}";
+    </script>
+
+    <script>{{"components/common.js"|get_resource_as_string}}</script>
+    <script>{{"components/list_item.js"|get_resource_as_string}}</script>
+    <script>{{"components/list_heading.js"|get_resource_as_string}}</script>
+    <script>{{"components/icon.js"|get_resource_as_string}}</script>
+    <script>{{"components/button.js"|get_resource_as_string}}</script>
+    <script>{{"components/result_view_button.js"|get_resource_as_string}}</script>
+    <script>{{"components/abstract_menu.js"|get_resource_as_string}}</script>
+    <script>{{"components/abstract_results.js"|get_resource_as_string}}</script>
+    <script>{{"components/breadcrumbs.js"|get_resource_as_string}}</script>
+    <script>{{"components/menu.js"|get_resource_as_string}}</script>
+    <script>{{"components/category.js"|get_resource_as_string}}</script>
+    <script>{{"components/subcategory.js"|get_resource_as_string}}</script>
+    <script>{{"components/search_results.js"|get_resource_as_string}}</script>
+    <script>{{"components/result_info.js"|get_resource_as_string}}</script>
+    <script>{{"components/rule_graph.js"|get_resource_as_string}}</script>
+    <script>{{"components/rule_info.js"|get_resource_as_string}}</script>
+    <script>{{"components/stats.js"|get_resource_as_string}}</script>
+    <script>{{"components/content.js"|get_resource_as_string}}</script>
+    <script>{{"components/navbar.js"|get_resource_as_string}}</script>
+    <script>{{"components/app.js"|get_resource_as_string}}</script>
+
+    <script>
+    document.querySelector('#loading-screen').style.display = "none";
+    </script>
+
+</body>
+
+</html>
\ No newline at end of file
diff --git a/snakemake/report/template/logo.svg b/snakemake/report/template/logo.svg
new file mode 100644
index 000000000..8362455cd
--- /dev/null
+++ b/snakemake/report/template/logo.svg
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg viewBox="12.402 16.679 58.278 58.321" width="58.278" height="58.321" xmlns="http://www.w3.org/2000/svg">
+  <path d="M42.07,37.53c-3.71,0-7.42,0-11.12,0a8.27,8.27,0,0,0-8,10A8.16,8.16,0,0,0,31,54.12c6.85,0,13.7-.09,20.54,0A12.83,12.83,0,0,1,64.35,68.7a4.71,4.71,0,0,0,.17,1.21,4.87,4.87,0,0,0,1.07-.68A18.41,18.41,0,0,0,70.67,55.9,18.37,18.37,0,0,0,52.22,37.53Z" style="fill:#039475"/>
+  <path d="M35,58.33h0c-5.75,0-11.49,0-17.23,0A4,4,0,0,0,14,64.21c3.16,6.29,8.23,10.23,15.31,10.57,7.76.38,15.55.17,23.32.09a8,8,0,0,0,7.21-5.67,8.3,8.3,0,0,0-8-10.87C46.24,58.3,40.62,58.33,35,58.33Z" style="fill:#039475"/>
+  <path d="M69,27.2c-3.58-6.78-9.19-10.4-16.91-10.49-7-.07-13.93,0-20.89,0a20.36,20.36,0,0,0-4.48.49,18.78,18.78,0,0,0-13.06,25A17.71,17.71,0,0,0,18.22,49l.4-.07c0-.37.08-.74.08-1.11a21.2,21.2,0,0,1-.06-3.28,13.07,13.07,0,0,1,13-11.22c6.43,0,12.87,0,19.31,0,4.81,0,9.61,0,14.42,0A4,4,0,0,0,69,27.2Zm-13-1a2.48,2.48,0,0,1-2.41-2.28,2.37,2.37,0,0,1,2.29-2.37,2.26,2.26,0,0,1,2.42,2.19A2.33,2.33,0,0,1,55.94,26.16Z" style="fill:#039475"/>
+  <path d="M55.94,26.16a2.48,2.48,0,0,1-2.41-2.28,2.37,2.37,0,0,1,2.29-2.37,2.26,2.26,0,0,1,2.42,2.19A2.33,2.33,0,0,1,55.94,26.16Z" style="fill:#fff"/>
+</svg>
\ No newline at end of file
diff --git a/snakemake/report/template/style.css b/snakemake/report/template/style.css
new file mode 100644
index 000000000..a100a8308
--- /dev/null
+++ b/snakemake/report/template/style.css
@@ -0,0 +1,42 @@
+.vega-embed summary {
+    z-index: 49 !important;
+    /* ensure that menu is always below navbar*/
+}
+
+.source {
+    background-color: transparent!important;
+}
+
+#loading-screen {
+    background-color: white;
+    width: 100%;
+    height: 100%;
+    position: fixed;
+    top: 0;
+    left: 0;
+    z-index: 2000;
+    padding-top: 50vh;
+}
+
+@keyframes fadeinout {
+    0% {
+        opacity: 1;
+    }
+    50% {
+        opacity: 0;
+    }
+    100% {
+        opacity: 1;
+    }
+}
+
+#loading-animation {
+    animation: fadeinout 2.5s infinite;
+    text-align: center;
+    font-size: 200%;
+}
+
+#jswarning {
+    text-align: center;
+    color: red;
+}
\ No newline at end of file
diff --git a/snakemake/rules.py b/snakemake/rules.py
index 45730db1c..b647f249e 100644
--- a/snakemake/rules.py
+++ b/snakemake/rules.py
@@ -55,7 +55,14 @@
     IncompleteCheckpointException,
 )
 from snakemake.logging import logger
-from snakemake.common import Mode, ON_WINDOWS, lazy_property, TBDString
+from snakemake.common import (
+    Mode,
+    ON_WINDOWS,
+    get_function_params,
+    get_input_function_aux_params,
+    lazy_property,
+    TBDString,
+)
 import snakemake.io
 
 
@@ -594,6 +601,7 @@ def _set_inoutput_item(self, item, output=False, name=None):
                         self.workflow.current_basedir.join(report_obj.caption),
                         report_obj.category,
                         report_obj.subcategory,
+                        report_obj.labels,
                         report_obj.patterns,
                         report_obj.htmlindex,
                     )
@@ -719,18 +727,17 @@ def apply_input_function(
             func = func._file.callable
         elif isinstance(func, AnnotatedString):
             func = func.callable
-        sig = inspect.signature(func)
-
-        _aux_params = {k: v for k, v in aux_params.items() if k in sig.parameters}
 
-        if "groupid" in sig.parameters:
+        if "groupid" in get_function_params(func):
             if groupid is not None:
-                _aux_params["groupid"] = groupid
+                aux_params["groupid"] = groupid
             else:
                 # Return empty list of files and incomplete marker
                 # the job will be reevaluated once groupids have been determined
                 return [], True
 
+        _aux_params = get_input_function_aux_params(func, aux_params)
+
         try:
             value = func(Wildcards(fromdict=wildcards), **_aux_params)
         except IncompleteCheckpointException as e:
diff --git a/test-environment.yml b/test-environment.yml
index d1fcf797e..1ac2c14d3 100644
--- a/test-environment.yml
+++ b/test-environment.yml
@@ -42,8 +42,6 @@ dependencies:
   - cwltool
   - jsonschema
   - pandas
-  - networkx
-  - pygraphviz
   - python-kubernetes
   - gitpython
   - pulp >=2.0
@@ -64,3 +62,4 @@ dependencies:
   - filelock
   - tabulate
   - retry
+  - graphviz
diff --git a/tests/test_report/Snakefile b/tests/test_report/Snakefile
index 91ba92e4c..ca2f9d4c3 100644
--- a/tests/test_report/Snakefile
+++ b/tests/test_report/Snakefile
@@ -1,16 +1,20 @@
 
 report: "report/workflow.rst"
+
+
 shell.executable("bash")
 
 
 rule all:
     input:
-        ["fig1.svg", "testmodel.fig2.png", "test.csv", "testdir"]
+        ["fig1.svg", "testmodel.fig2.png", "test.csv", "testdir"],
 
 
 rule c:
+    input:
+        report("lorem-ipsum.pdf", caption="report/fig1.rst"),
     output:
-        "test.{i}.out"
+        "test.{i}.out",
     singularity:
         "docker://continuumio/miniconda3:4.4.10"
     conda:
@@ -21,31 +25,47 @@ rule c:
 
 rule a:
     input:
-        expand("test.{i}.out", i=range(10))
+        expand("test.{i}.out", i=range(10)),
     output:
-        report("fig1.svg", caption="report/fig1.rst", category="Step 1")
+        report(
+            "fig1.svg",
+            caption="report/fig1.rst",
+            category="Step 1",
+            labels=lambda w, params: {"type": "figure", "num": "1"},
+        ),
     shell:
         "sleep `shuf -i 1-3 -n 1`; cp data/fig1.svg {output}"
 
 
 rule b:
     input:
-        expand("test.{i}.out", i=range(10))
+        expand("test.{i}.out", i=range(10)),
     output:
-        report("{model}.fig2.png", caption="report/fig2.rst", category="Step 2", subcategory="{model}")
+        report(
+            "{model}.fig2.png",
+            caption="report/fig2.rst",
+            category=lambda w: "Step 2",
+            subcategory="{model}",
+            labels={"type": "figure", "model": "{model}"},
+        ),
     shell:
         "sleep `shuf -i 1-3 -n 1`; cp data/fig2.png {output}"
 
 
 rule d:
     output:
-        report("test.csv", caption="report/table.rst")
+        report("test.csv", caption="report/table.rst"),
     run:
-        shell("curl http://samplecsvs.s3.amazonaws.com/Sacramentorealestatetransactions.csv > {output}")
+        shell(
+            "curl http://samplecsvs.s3.amazonaws.com/Sacramentorealestatetransactions.csv > {output}"
+        )
+
 
 rule e:
     output:
-        report(directory("testdir"), caption="report/testdir.rst", patterns=["{name}.txt"])
+        report(
+            directory("testdir"), caption="report/testdir.rst", patterns=["{name}.txt"]
+        ),
     shell:
         """
         mkdir {output}
diff --git a/tests/test_report/custom-stylesheet.css b/tests/test_report/custom-stylesheet.css
index e278b6329..6703f7fe3 100644
--- a/tests/test_report/custom-stylesheet.css
+++ b/tests/test_report/custom-stylesheet.css
@@ -1,8 +1,9 @@
 #brand {
-  margin: auto;
-  height: 30px;
-  width: 311px;
-  background-repeat: no-repeat;
-  background-size: 311px 30px;
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diff --git a/tests/test_report/expected-results/report.html b/tests/test_report/expected-results/report.html
index ac74248d1..3f4f45037 100644
--- a/tests/test_report/expected-results/report.html
+++ b/tests/test_report/expected-results/report.html
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a=this.convertWhitespaceNodesToSpace(s),u=a.space,c=a.rawSpace;c!==void 0&&(o.rawSpaceAfter+=c),o.spaces.after+=u}else s.forEach(function(z){return i.newNode(z)})}return}var f=this.currToken,d=void 0;n>this.position&&(d=this.parseWhitespaceEquivalentTokens(n));var h;if(this.isNamedCombinator()?h=this.namedCombinator():this.currToken[_.FIELDS.TYPE]===O.combinator?(h=new io.default({value:this.content(),source:_t(this.currToken),sourceIndex:this.currToken[_.FIELDS.START_POS]}),this.position++):so[this.currToken[_.FIELDS.TYPE]]||d||this.unexpected(),h){if(d){var w=this.convertWhitespaceNodesToSpace(d),b=w.space,S=w.rawSpace;h.spaces.before=b,h.rawSpaceBefore=S}}else{var x=this.convertWhitespaceNodesToSpace(d,!0),k=x.space,T=x.rawSpace;T||(T=k);var q={},B={spaces:{}};k.endsWith(" ")&&T.endsWith(" ")?(q.before=k.slice(0,k.length-1),B.spaces.before=T.slice(0,T.length-1)):k.startsWith(" ")&&T.startsWith(" ")?(q.after=k.slice(1),B.spaces.after=T.slice(1)):B.value=T,h=new io.default({value:" 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Escaping special characters with \\ may help.",this.currToken[_.FIELDS.START_POS])},e.namespace=function(){var i=this.prevToken&&this.content(this.prevToken)||!0;if(this.nextToken[_.FIELDS.TYPE]===O.word)return this.position++,this.word(i);if(this.nextToken[_.FIELDS.TYPE]===O.asterisk)return this.position++,this.universal(i)},e.nesting=function(){if(this.nextToken){var i=this.content(this.nextToken);if(i==="|"){this.position++;return}}var n=this.currToken;this.newNode(new Hx.default({value:this.content(),source:_t(n),sourceIndex:n[_.FIELDS.START_POS]})),this.position++},e.parentheses=function(){var i=this.current.last,n=1;if(this.position++,i&&i.type===Qx.PSEUDO){var s=new to.default({source:{start:jc(this.tokens[this.position-1])}}),o=this.current;for(i.append(s),this.current=s;this.position<this.tokens.length&&n;)this.currToken[_.FIELDS.TYPE]===O.openParenthesis&&n++,this.currToken[_.FIELDS.TYPE]===O.closeParenthesis&&n--,n?this.parse():(this.current.source.end=Uc(this.currToken),this.current.parent.source.end=Uc(this.currToken),this.position++);this.current=o}else{for(var a=this.currToken,u="(",c;this.position<this.tokens.length&&n;)this.currToken[_.FIELDS.TYPE]===O.openParenthesis&&n++,this.currToken[_.FIELDS.TYPE]===O.closeParenthesis&&n--,c=this.currToken,u+=this.parseParenthesisToken(this.currToken),this.position++;i?i.appendToPropertyAndEscape("value",u,u):this.newNode(new ro.default({value:u,source:st(a[_.FIELDS.START_LINE],a[_.FIELDS.START_COL],c[_.FIELDS.END_LINE],c[_.FIELDS.END_COL]),sourceIndex:a[_.FIELDS.START_POS]}))}if(n)return this.expected("closing parenthesis",this.currToken[_.FIELDS.START_POS])},e.pseudo=function(){for(var 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t=e.parent,i=t.index(e),{length:n}=t.nodes,s=this.unprefixed(e.prop),o=(a,u)=>{for(i+=a;i>=0&&i<n;){let c=t.nodes[i];if(c.type==="decl"){if(a===-1&&c.prop===s&&!kl.withPrefix(c.value)||this.unprefixed(c.prop)!==s)break;if(u(c)===!0)return!0;if(a===1&&c.prop===s&&!kl.withPrefix(c.value))break}i+=a}return!1};return{up(a){return o(-1,a)},down(a){return o(1,a)}}}};W0.exports=Kr});var Y0=v((MD,H0)=>{l();H0.exports={"backface-visibility":{mistakes:["-ms-","-o-"],feature:"transforms3d",browsers:["ios_saf 14.0-14.4","ios_saf 14.5-14.7","safari 14.1"]},"backdrop-filter":{feature:"css-backdrop-filter",browsers:["ios_saf 14.0-14.4","ios_saf 14.5-14.7","safari 14.1"]},element:{props:["background","background-image","border-image","mask","list-style","list-style-image","content","mask-image"],feature:"css-element-function",browsers:["firefox 89"]},"user-select":{mistakes:["-khtml-"],feature:"user-select-none",browsers:["ios_saf 14.0-14.4","ios_saf 14.5-14.7","safari 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14.0"]},"text-emphasis-style":{feature:"text-emphasis",browsers:["and_chr 92","and_uc 12.12","chrome 91","chrome 92","edge 91","samsung 14.0"]},"text-emphasis-color":{feature:"text-emphasis",browsers:["and_chr 92","and_uc 12.12","chrome 91","chrome 92","edge 91","samsung 14.0"]},":any-link":{selector:!0,feature:"css-any-link",browsers:["and_uc 12.12"]},isolate:{props:["unicode-bidi"],feature:"css-unicode-bidi",browsers:["ios_saf 14.0-14.4","ios_saf 14.5-14.7","safari 14.1"]},"color-adjust":{feature:"css-color-adjust",browsers:["chrome 91","chrome 92","edge 91","safari 14.1"]}}});var J0=v((ND,Q0)=>{l();Q0.exports={}});var ew=v((FD,Z0)=>{l();var gC=va(),{agents:wC}=(Cn(),Tn),_l=_h(),bC=Je(),yC=G0(),vC=Y0(),xC=J0(),K0={browsers:wC,prefixes:vC},X0=`
+  Replace Autoprefixer \`browsers\` option to Browserslist config.
+  Use \`browserslist\` key in \`package.json\` or \`.browserslistrc\` file.
 
-table.dataTable.dtr-inline.collapsed>tbody>tr>td.child,table.dataTable.dtr-inline.collapsed>tbody>tr>th.child,table.dataTable.dtr-inline.collapsed>tbody>tr>td.dataTables_empty{cursor:default !important}table.dataTable.dtr-inline.collapsed>tbody>tr>td.child:before,table.dataTable.dtr-inline.collapsed>tbody>tr>th.child:before,table.dataTable.dtr-inline.collapsed>tbody>tr>td.dataTables_empty:before{display:none !important}table.dataTable.dtr-inline.collapsed>tbody>tr[role="row"]>td:first-child,table.dataTable.dtr-inline.collapsed>tbody>tr[role="row"]>th:first-child{position:relative;padding-left:30px;cursor:pointer}table.dataTable.dtr-inline.collapsed>tbody>tr[role="row"]>td:first-child:before,table.dataTable.dtr-inline.collapsed>tbody>tr[role="row"]>th:first-child:before{top:12px;left:4px;height:14px;width:14px;display:block;position:absolute;color:white;border:2px solid white;border-radius:14px;box-shadow:0 0 3px #444;box-sizing:content-box;text-align:center;text-indent:0 !important;font-family:'Courier New', Courier, monospace;line-height:14px;content:'+';background-color:#0275d8}table.dataTable.dtr-inline.collapsed>tbody>tr.parent>td:first-child:before,table.dataTable.dtr-inline.collapsed>tbody>tr.parent>th:first-child:before{content:'-';background-color:#d33333}table.dataTable.dtr-inline.collapsed.compact>tbody>tr>td:first-child,table.dataTable.dtr-inline.collapsed.compact>tbody>tr>th:first-child{padding-left:27px}table.dataTable.dtr-inline.collapsed.compact>tbody>tr>td:first-child:before,table.dataTable.dtr-inline.collapsed.compact>tbody>tr>th:first-child:before{top:5px;left:4px;height:14px;width:14px;border-radius:14px;line-height:14px;text-indent:3px}table.dataTable.dtr-column>tbody>tr>td.control,table.dataTable.dtr-column>tbody>tr>th.control{position:relative;cursor:pointer}table.dataTable.dtr-column>tbody>tr>td.control:before,table.dataTable.dtr-column>tbody>tr>th.control:before{top:50%;left:50%;height:16px;width:16px;margin-top:-10px;margin-left:-10px;display:block;position:absolute;color:white;border:2px solid white;border-radius:14px;box-shadow:0 0 3px #444;box-sizing:content-box;text-align:center;text-indent:0 !important;font-family:'Courier New', Courier, monospace;line-height:14px;content:'+';background-color:#0275d8}table.dataTable.dtr-column>tbody>tr.parent td.control:before,table.dataTable.dtr-column>tbody>tr.parent th.control:before{content:'-';background-color:#d33333}table.dataTable>tbody>tr.child{padding:0.5em 1em}table.dataTable>tbody>tr.child:hover{background:transparent !important}table.dataTable>tbody>tr.child ul.dtr-details{display:inline-block;list-style-type:none;margin:0;padding:0}table.dataTable>tbody>tr.child ul.dtr-details>li{border-bottom:1px solid #efefef;padding:0.5em 0}table.dataTable>tbody>tr.child ul.dtr-details>li:first-child{padding-top:0}table.dataTable>tbody>tr.child ul.dtr-details>li:last-child{border-bottom:none}table.dataTable>tbody>tr.child span.dtr-title{display:inline-block;min-width:75px;font-weight:bold}div.dtr-modal{position:fixed;box-sizing:border-box;top:0;left:0;height:100%;width:100%;z-index:100;padding:10em 1em}div.dtr-modal div.dtr-modal-display{position:absolute;top:0;left:0;bottom:0;right:0;width:50%;height:50%;overflow:auto;margin:auto;z-index:102;overflow:auto;background-color:#f5f5f7;border:1px solid black;border-radius:0.5em;box-shadow:0 12px 30px rgba(0,0,0,0.6)}div.dtr-modal div.dtr-modal-content{position:relative;padding:1em}div.dtr-modal div.dtr-modal-close{position:absolute;top:6px;right:6px;width:22px;height:22px;border:1px solid #eaeaea;background-color:#f9f9f9;text-align:center;border-radius:3px;cursor:pointer;z-index:12}div.dtr-modal div.dtr-modal-close:hover{background-color:#eaeaea}div.dtr-modal div.dtr-modal-background{position:fixed;top:0;left:0;right:0;bottom:0;z-index:101;background:rgba(0,0,0,0.6)}@media screen and (max-width: 767px){div.dtr-modal div.dtr-modal-display{width:95%}}div.dtr-bs-modal table.table tr:first-child td{border-top:none}
+  Using \`browsers\` option can cause errors. Browserslist config can
+  be used for Babel, Autoprefixer, postcss-normalize and other tools.
 
+  If you really need to use option, rename it to \`overrideBrowserslist\`.
 
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+  Learn more at:
+  https://github.com/browserslist/browserslist#readme
+  https://twitter.com/browserslist
 
+`;function kC(r){return Object.prototype.toString.apply(r)==="[object Object]"}var Tl=new Map;function SC(r,e){e.browsers.selected.length!==0&&(e.add.selectors.length>0||Object.keys(e.add).length>2||r.warn(`Autoprefixer target browsers do not need any prefixes.You do not need Autoprefixer anymore.
+Check your Browserslist config to be sure that your targets are set up correctly.
 
-</style>
-    <style>pre { line-height: 125%; margin: 0; }
-td.linenos pre { color: #000000; background-color: #f0f0f0; padding: 0 5px 0 5px; }
-span.linenos { color: #000000; background-color: #f0f0f0; padding: 0 5px 0 5px; }
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-span.linenos.special { color: #000000; background-color: #ffffc0; padding: 0 5px 0 5px; }
-.source .hll { background-color: #ffffcc }
-.source { background: #ffffff; }
-.source .c { color: #999988; font-style: italic } /* Comment */
+  Learn more at:
+  https://github.com/postcss/autoprefixer#readme
+  https://github.com/browserslist/browserslist#readme
+
+`))}Z0.exports=Ht;function Ht(...r){let e;if(r.length===1&&kC(r[0])?(e=r[0],r=void 0):r.length===0||r.length===1&&!r[0]?r=void 0:r.length<=2&&(Array.isArray(r[0])||!r[0])?(e=r[1],r=r[0]):typeof r[r.length-1]=="object"&&(e=r.pop()),e||(e={}),e.browser)throw new Error("Change `browser` option to `overrideBrowserslist` in Autoprefixer");if(e.browserslist)throw new Error("Change `browserslist` option to `overrideBrowserslist` in Autoprefixer");e.overrideBrowserslist?r=e.overrideBrowserslist:e.browsers&&(typeof console!="undefined"&&console.warn&&(_l.red?console.warn(_l.red(X0.replace(/`[^`]+`/g,n=>_l.yellow(n.slice(1,-1))))):console.warn(X0)),r=e.browsers);let t={ignoreUnknownVersions:e.ignoreUnknownVersions,stats:e.stats,env:e.env};function i(n){let s=K0,o=new bC(s.browsers,r,n,t),a=o.selected.join(", ")+JSON.stringify(e);return Tl.has(a)||Tl.set(a,new yC(s.prefixes,o,e)),Tl.get(a)}return{postcssPlugin:"autoprefixer",prepare(n){let 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HixYvxQ2QAR/EslpbVUcvqqMmcTI2MZhdbqz4irlZrxOQhix0uhK0ei5a7IJ69Tr1Y9J7TjMWxDD3XXOQc6pybI3R0Pq2fThvgolcPK4m8YpcuXYIXXngBTp16DTa79W07pNzi9sEHH8Avf/lLeP/997tY5gAxcrONtJ6l9fRemc0hFuVkDi4ZjWej+l1sl7l2yS12AOt8MmRZ2GO0BCXuveaZ68GySBfWxjJgG0VK96kFKNjIkdrKZd7jND/ARW8dVgpXoTHnq6++Bi+88AJsdmvb9uOeW9hOnz4NH3zwwc4/qoniS7UuhgOgz7d0bBBn/Iwmk5ONZeIjdnBwED4gNVuSAyAeKuLhpD4QFV8+LK0/1avYegAWTOcrWKmzBjeqNzml1zrOMW1ti9c+Eg/w8GthYXE9Nh/hf/2v/wc+85nPwGa3nm2fpNyC9sEHH8DPf/5z+OCDDwCgf3NLznoYeTdQibPxzojEuil3OkjUFTbc16CN1hzVHxfr1iWXuaZvYc2iuGPRdS45+vDs9fn3Dw+UAdlIY6Yh16sHRRBzl7j1vqH5AS760QNK0VYeGqb7iQjw/PPPw/PPPweb3Xq2HVJuMbtw4UL9X0tHN0H1T0jBgcXSZOpqc2QPI1IXzSexZ1IXrc/SSMtoLNsl96iad7hcGpsFTWNh8K+1Sjn77l8XcgRoco1rFr3W2uGgLbGPlXVm1pvdg70cVox4hcE8k6YJLl26BM899xz7ywGbHX/bftxzi9j7778PFy5cgPfffz/1Y441fzwzEjfzyI9wuh/nGDGGkz/OyWDNz2gyOWvHM3aYP+7xDnPdA0Y+zCbQ+eyhhgo/gpWHnXWoHuF6Dc4P0DJy3Ov0+hTXUeldO5gwbiLCPcj2kMGZg0sKW/MQDUDbbwCAr33ta/C1r/0KbHb8bTuk3AJ2/vx5OH/+fOoBHB0iIjwSN/Pmw8WSg0kXG+jdw2v4Wc2a8Ywd1iFF0696SBnB2sOO4uQDeLeDSYlTjuPDPKyY9bQ6yb3I4NTrEfTYYaIHsndzBAARPvOZz8Kv/MqvbL+rcsxt+3HPMbdTp07B+fPnASD55iY4io9oKRfx5YFi3aSiGDODz6xJ63PEMvmRJopvFhjdPmzX1uSKvVW2OrrGJee9XlrIf3mj1z64Vun7Q3CRjtUr8eReWPHuEOFY6oBivJbxAWXyLl26CD/+8TNw6dJF2Oz42vZJyjG1999/H06dOlX9zKcF0ScfEY7iI9rUj3Aa8HUDfUk8Esv4Wc2a8chuuU9SxMMtiksM0PrSHrIe12vKQ7I9LL2Yz0V1cj1GXBRfkmNqrddjhRrcL71R3ISf+cxn4Td+4zdgs+Nn2ycpx9Dee+89eO2118I3d8ZGaqyplTcbDSP0dVUqsd6o30xMs4w+ozmKNnI4iq6BnU2U6q6NgamyvcqHctO0sVAtXcb4hd1PYx9WKqpzDPbNavQ4ek8sjTNt6Z283zN5Wg2Kcf6v+WWfENr3Frt48QL8+MfPwGbHz7ZPUo6Zvfbaa/Dee++FnxJEcUtr8VHeCNY+EbE+QUl/mrLDJysjsYyf1awZ9+wwPkmJHmKRb/8JuWFshBp3cfIhnYkByE9D+IEkE+t1Wk7UR46LDgL7jjNt5vXJvJ4qLnMAANr4N3/zt+Czn/0sbHY8bPsk5ZjYe++9B6+++iq89957AGDfDDQuwlq+pZXxXW9UNSZvOhNgmIi5TuKBXjKx42xLDygA+YPRkvoIdk73uiqvvWbuQwx6XDmn/xZr40T1B4pJr2toTOI5U6nXX5PR+zf7WozcM3aNMy1fcmfxQUTBLB9IDMpGM9XTzzwNv/zlL2Gz42HbIeUYGD2gRDeCKL5LnsdJPsLlRlNvOEUiSxdNdYVAbyVlS2/oka9ZRnMr2c7rjdKxDKhrrfyS51zXLdZGrHldmtBEjQPTFdzn0jntXi0uinvcqnHjvevdE4bwBJpH97HWheoX/Itf/Byefvpp2Ozo23ZIOeJ29uxZeOWVV8IbELURLbUoDxGVG/k4lvfxcuugN53uMDLzEkc3Pg8v1WVsbX0Uv2WNvs7Ka65pOYUqTxV5QzF6xrXTy+dxQLg2Nq3/3ouu4+i9Tc167y+K09esrs3XdrhS2GM+VNSlI8me8YWLF+Dpp5+CCxcvSPVmR8i2Q8oRtldeeQXOnj1b/ZGbz65aavQGKfkRLO8c3QME+c0nxCRPxYZ5N+loL6xYdOPPao6bRdfFWrbGP1So9ypjbZyo9olGnyc1OMfKyLWUmyMs3mKyB5KReK9KHL834z98aNxQvOwF6HH1AFIwnQZJXNYsazBwMeqdv3ABnnpqO6gcZdt+cfYI2rvvvgu//OUvd/4FVQvvGt8Fs1+UnYiOY78LYWhprQ4n+snqvJxRrcVl41GuZgcHy38nBUB/EEXxDCcfPtqftLtPT0TcwpGWP5yjmHUQ8WL6qMdoPseZ/Dje17PiI9r8/DE2X+cA08PMBGem1hV49kkW6+ezn/0s/Pb/+9uw2dGy7ZOUI2blgEItepN7WLMoL4pnMTN6gyEjjasxrRy7y5Qh7sfbl2xOtobm72pr19vVVu1HeR2119ky1kuyrZaCYqSx3qaYLvDzMNCg0hOJKonR9V0oHtPWqc/N60fxfH/m61X6nW4IDUOPeY44fGgY7QMKIsKFCxfgyaeehM2Olm2HlCNk7777LvziF78gN7P4Db7GTWKNPA0j6jcaeQfBJuo54HH3htUvw7XsQ9bTZWsUG9UfN4uupUZSaFwbgcV7aVyTXYyP9EKcuDZS02N8nr421dB8Hm95su94j721arV5D1rc1vbxfH8dVl589b0vMMvEBAa7h/Pnz8MTTz4Bmx0d237cc0Ts5z//Obz77rs7//glii/VZrAZpz/OOVA4qg8478c/LGcBXkO3xJfmxaNcaQcH+/lxzwgfcRGO4vTB6eX7udboa2itNnoxTcNr9vNGaxhdq40j7UjdsNfptLETZkcPHD+UUCz9r//21+Fzn/scbHZzbfsk5QhYOaAAGG/mxBts39oMNuPz7YLeZGaixeqdTalHdPLGpNVUMaWdm5Rlns670WkWxT3bJfc4WbxO+hr6cTumHQx6bdEUn47e3O06BmVEhvs6+sO+RoP3H1HWsYVtnIvTuXY/oMxEx3cYekzIxqJ9QAGjL+kjIjz+xONw4cL2C7U327ZDyk22n//853DlypX4TR3Ed9EuybOs0yLB0G482qFDvRkrunoHqi5yLHPB73vJWr0bnLRoz24V232dUf6SOHZjabNvVx5aeK6ex6/dfpw0dj1aTOutvx7z73ntEBZhvR+JK1Lidi+kNoVlDYB8+iothTPYOaBAK++9fyl+/InH4fyF87DZzbPtxz03ya5cuQIvv/xy6scImR9BHCWthTN/syf9457qHpgcqwG9n8GHEdPMi0e51A4ODu/HPUs4/+HKcRRv2Bq1GvrBxI/poxfLz8VxZg6d8/ZlwpPe1kZxrV+tdxcDlqlU3A4fCQz2PF4so7v33nvhd77+O7DZ4dv2ScpNsHJAAZjeBNGbJ4pLbTZvVOvFPRzeeDQOdI7Wodbd4AovbkDUUr0LWyvmaSPbJXcN0+bfvSe6/42juDfKUa1lWEdPO8Wato/pJt8rRVvq8bo8RhiSl9vnxnl72O+lxtN+vLj1Gmmvl/k+k+9ZBc8Ew9Z9gb04Yp+y73Urdv78eXjs8cdgs8O37ZByyHblyhX4n//5H0CMDycUR3GJo/iSOWjPkZblKTcg7dBBbz5l7G5IdImCYzjRn7Rdc0ZiJ8Gi9bd45oBRjAv7PPkg7UdPyyohHVuvE1dGUH2q1evyNWvraDE+p81VVEerrrcXmTjnbOy+j4qGvm89LEweUFDDYPcg+4li20Hl5th2SDlEO3PmDPzsZz+LZACgv2Eyb7Yl2qV5UXxyytBuOIU3OWgj5WgdjWN5IPowzNNYsSU5UUzaiPYwbde+4nwtzrm+RFST25SvH4x4rAjma1LtXXJFC8qoHxoaJw9NE+4ylD4ap9eg65m0tE9tf3lc40iGMlevoVbvIYA1ZL6PG8kwEZgzmfclYdnY+fPn4f/+2/+F8+e331M5LNsOKYdkP/vZz+D06TcAwH7jyDfK4oNBEF8jL4p7NyH30IE+1+UIDsDoY8ebVea12TU2Yrvkrm3RdbHM+AN9wrSmVl8/XPQjNT9HW4a8ptoIZNQOC7WCEkORLzk+1xTTOBCmHTCAYOywztEcimncPqzQdbBrg6cXdfWHMACrnX2fj7xHi//oY49uB5VDsu2Qcgj205/+FC5fvgyI7SK33gjeG0bjNOzFPU0Ul1ovPjllQI41Dlus3nMol61TtEt7FrZENxI7SWbvf0Uzpvvl7WuLt3rcLzQf9YOJ1PKYX5dqddMOIVqs3xf9+m25ZbT3kfYcYT8+GT8M+XHt4DRH6Hrk3iHhMhhEPTFpdI8KdUrskUcf2Q4qh2DbIWXPVg4o3bsB7DcEIqqxzEM20lKLNEvjtQd6A6Hrr/cY5NuCTdfdiLQchVvas6XxzNMdZo2badEex5bVztcFNlwjbgl0R54rY3zkptcp/ekjz+M5NEbn9PZXOwBoB4gWaxwNyPXqWm0tufjsEYdhwNqOdk/IWPp9JGTWIafTGZv6yCMPw/nz52Cz/dl2SNmjvfTSS3D58jsAMF3X0QEi80bL5Fpaynv1MnVHtI0sA3a4O9AYXMUGBxD3EcWlea/R6OsX6UZsrTqHYbxXuheNY5cKNh1fplaHv4ZtBHfkuVqMm1+/P3T0NTVNvxcep8VaXe8AQXtuWL/+dW3BRUNTtDg18/0n38MWnkDFiMgwNfO9RvIX6RAAkERm8PAjj8C57aCyN9sOKXuyl156ES5ffofdCAAalpzFU4s01jwZjbQoR2q93uoY3IQoNxN2jlYz2cdoXFo25umoZXVHzaLrxuL85WrB8vooIdfQHXk9GZM985xp5AeBOWKMdL54jyyORBfGqGlzWnG6fm290MX19Yo5lRA7IDSSYZkDAOz9X3yqsw4osp55kKERLMxkjzz8MJw7tx1U9mHbIWUP9uKLL8I771yevfKG7S98601lPWylRnJLsOSsuaM+JS+txqa7QMNVQDjkMSuH1VTM68PCUVwzL2bZkpzDNuvaOwomXy/v2rPNqgHVn776HBDX3KRBkitHei31XIvZ16FWo83J+ywc1XKurz97LMePc6zNyfuSPVo9ALB7QBKzXDaRyPFihk7mEGVd7MOPbAeVfdh2SFnZXnzxv+cf8UxvyMyNIcLWwyLKy+Bd41GeGgOdY3FsI+XMmugfrqJ+qUVxj5eWqXWrWLSXM6NiKrNw4+J9tK7DTC7vkbCojf3BpOVn9sPvzb9+9blLX43XDxCItD7HTdvPa9cvuooMbK0H2Pt8JiBzQFHx0hidX/plvdVHQiM8/PCPtoPKyrYdUla0//7v/4Z33nkHpgcmQLm6+zc9xZDCU0357onzMtiKezkelpw5J/a5NT7dNepIOSuH2prr9Dgt5ukss3KiWrvGD9toOw1rPXJu0koO9bHEwTYzt45AxlTFOvLcvrbGRderjE24ojr2++vtI10r1fE9mLAVp/c661AyfkDZ+bCi+dScGtNgxbAMUBZV/dl+tB1UVrXt3+5Zwd555x14/fVT8M47l6H9syrl35+xcPzvxkQ4iu+Cs9yINs0p//aO9e/xpGsuyBmJL8FRLOKz8aUmbw2jvq/RHmLzTR81jsc4NzjOhbpRxPUak4KP8Zyjsaxe60Hrr+f4eng+MN/S6PEJ9/PyHBmzDigaDg8oVG/42TzzgALSRyKb8Oc//wV46KGHYLPdbPskZUd755134Cc/eQHeeaf9iGey+aJFC1fhYhzFl+CIy869EzfdHULOzE9y1EZqjlo0961q2bVS2YR5Xokj/Y7UkxmB1YJiFPH22lPaOaAo7+1i3nWUuW7p2HTeAYUaP5hUlnD8NZDvc68/WYPOIRvh+ahIEbFh0HHRjxw0DuOAAgKeO/c2/OhHP4TNdrPtkLKjnVG20gQAACAASURBVDr1GgCAcZPAOcZx9ODMYCu+a22Ly2qpLeKwDD43MrfWr6eLtJkcLT+yJTnHyfj+VKRwBZMDARGwbSqOeG2KxBqltTKijtYHuRIpog8sBP29WKyfh+6DHpMa2XPrk2J+GChc0UiOa/ueKO7zvHr9fXGKk32ifN1PG89Eh6sGSU3N1/JA0+UOKNj5CG+//Ta89NJLsNly2w4pO9gLL7wAly5dYjcLemOw3rjUohuBhdmbG3ld78aXwVE80i7huhsM1Smcha14VpetGc3j2WhuRnO8jK5fcvJAwMPYfTfGUtgYZc40L39tVSWfpI5yGu96Va//BZoeV9T20OBa/YnrsTUH7ceqAQJrfSjWl2Y4c3DpsJbv5aGW13CNcpLvAQDbpxdffBHefvtt2GyZbYeUhfbCC8/DpUuXZk+/GQCAg+kFvjtGRMZn8ywcxaXWu7lmOARkuN4gKCdyJfbiWV1Gm+WimpplddSW5Ozbcj1hHVU5zjEzVC8SRUGr83FyWi57nejYXdNTRB+pjo8WZ8UyGhsrByal1xZHAxdNNB9A27WCrUOJnL+tKZonOpTg/B/jJ6DmqFpqSl5Vtm+AAHzvoBLQIMIPf/iD7aCy0LZDygJ7/vlyQInejPOFK3D+hjOOo3iURy2Tp95QnPVFXI2BrsvW8fYk6j/SZrmsjeqPokVr4PvDR6JqMU5DvSKEoOhKjGv0iWoOIsNaTn195+98pPPrCoTcNZu5XqNrdcIV1XHiaH16rwIW73HR9P1Jvn/trPsjWRPwuuoeAdaiGjYPJFaO1Gq5Alel3AZCIpZvcwhbEwgAP/jBdlBZYtshZdCef/45uHTpovHm63G7wUxcjZIbz9hNyMdR3MvbtQbFXi3thjcytxcf4aI598V5/K1u8qE0cXyE+nAQaqRDcYz91UbENtYAOXCgMcrcmWQPSWVsyRBel5mY1Ni4rY+WwdJ4Y6C3Ps5r0PcN5Zu+bBDpjFct+WSfEFpdqpmDHeYHCJtXDx2R39WRB5S5f9Rx84l6/vaDH3x/O6gM2nZIGbDnnnsOLl70fsTTYwBgb+qRB+JSHMUzOIp7WHJe/SVzZ+fdR87auZplddQQcVHeYRjrCznXHgbYYlSKVdVGnEauk4eINkqrtWqBgskIZJS1WL+sCwZFlQknro/RWI8lR+9JJY4MI9I8Op/UFg12NVi9SgnMipQBGc6s0crlL0Mu5mvnvRO+tuaqoLFKNO33v78dVEZsO6Qk7dlnn4WLFy+CvEgzGACUNxvn6UNGYpqXvVmNaC28tEbEjeq9XIvLxkdyJKfFIrNyltTSrLxma9Vb0+q+gbKnFIkwcgEJiMODYUVTtQWXB1BTQe0O+7GpkI+lZRRrxDZOJZR1O9eSjFnXKo33Wr7GgudtMONFU1fMMJ1b15QNQYlLHt1BhA4DxOudk+ZB5ArfiyF6PQCx/nph65d+I4h2in//+9/bDipJ2w4pCXv22WfrL8nab9wM1i5YybN3ReWiB6h+gwLGZW92Fo7ilnYktiu3a1zjon2NYhJ7nBXztJYh7u/Aku1d1WEZcMZIOCXWGCplNsXEwaITEb5i+r4oMX1U58DWq3zwsgdw4tqhr1X2+tLirXGyJmgP2KZFNd5wqS3xrELsNCgwaBgRuv0R2LqG1H0guZX3anVraForBnVPqpLvC//Wfae5MPvf+952UMnYdkgJ7NlnfwwXL14UFzoAvdjGsH5jiW5CkqdcRjMS9zRRXU27JLZUF+VQi7go7sV26WsfVvZqH/NZ6wnXiSVWXKwckzC6JYUrKRqcHjBIOQA2F84TmaOsN+eXamwsdem6CqVcA9Iy175liO1hyvMq6nJknE5R1t9jWbsuFtp+Gbgg7HGrMcPM9WTpRV0Z6+q5WuoBkG+Gr8WmXNr69773XTh79ixsZtt2SHHslVdegQsXLlbfemOO4slHNo5i+cCxNFHcuml6NaK6mjaKZXUyFsW12nKtVq4Vl9xIbtTrYVjZk5H5RrSe1bUCH5lmfrjQR1oZkI4AAGgcIFpWe3TU/PLQmcaKwRlrfVq39NX6K8ayqwzZqHHePmevf/naclwRw73ReNujhidvqk15/hDXMNsTgen1Ea3XxaSujM0CM8Z9Uad+kz4Sn2IZa5nTGqdPVDazbTukGHbx4kX4xS9+AQDemwIYbjeJGNNakvNuZqM4iktttkamZy9Hxiyd5DJryMQjvcZl16FxUZ1sP2tbee3kXN7c0bokVk2Ey0OlPVyw6rCOJanEOqYZ3c+qQyZE8p1BMiIdgfRQ1if7U8ZJXmZr82Wup+i6iPZZ1/IDSo+tOLR4cxTexzWH7o+DM2vv9oH1zGNeHvfF2klf2vronjRMY1ruZN/97ndhM922Q4piFy9ehGeeeYZx6TfHoHk3KskvxYjIcDaP4qiupo1i3tqX5I7EtTHiqC3JjdapcVH+mlb2be15vNcZjKmQf+tjjCB7RMcy74yLhwjzA0c+lPuRVcU2tpoIUOv141ytjbUEslHjllwbUXzCFanYj7e1T16p3T+0PdztT4ABcmtbM0bDsi91fWRPGBYAmT/Ndfbs2e2gYth2SBF28eJFePrppwff9Mj0I5jWys5FsVXfy83Wy+ZRk1pN59WO1rSkr2i+JXkWJ2Nr5By2yX9VOVpLFktOPrzlQ2mKQYuRXEUKUGPY4gJjK1ixOZYcb2zKbqxYrM3dk2TMv6ZQxYjyvtPyKW550GGs3wpGgmdtgNleGLgVnWGwdsvfNYZl/2iPE6BeIch6SftViywOwOc9e/Ys/Nd//Rdsxm07pAh7+umnK87eHKLYCKY3Ek87WkfWtOaRGo3zalHLzplZb6TL9qrlZOpTy6zVw9kcj9uHHRwcdAeUtUxdg7EstAOqBpWxHQ5mBqWOz6HVqDlypLqyLqVA66ElRtdmsew12cf1wwVdL52bG9U0jtWYN6LsRx0QBa9j61Aisble0PlOh06NZIz2VP0JUA+KrFuv6c+c0v/Zs2fhJz/5CWzWbDukECufoFg3gQhTfYT7m4uOLW0m18LRPJE2iq/NafFdcjXz6kvNEp2Vswu3plmHk2gtWexxoC0JoT4kyi2+PSTsfUHEGm/5tWDjcFagEtNGMn/3WiCaOdS6ddAaBHvXYnRNNIgqlvm0Rq/RasxjwVPCrCi48MAwW3cCqzFlHdJfI0bnYr5YU33ti6/Emt9q0TYmvxHPP//89jd+iG2HlNmeeuopuHDhQvWjG8OumPryZuHlUm1GL3EUt+Ycje/KRfEoVrCVk6mhaTTL7pOl1XQet6Zpn54sWU8WV26+Y7OHkrdUTSbq1r6JqDxcWk4L4ozLCHIEMgpX66dbE9L5kQqnYfDa868jfq3XNdX1FZ/n+7iiihk3DVCHbv+R4RKkD/wOEw3dM0SBoWHvWlsSY3MB9v4EgAyk50bQGMs2agO0Pr7zne9sB5XZtkMKAPziF7+ACxcuhBdx9sYRYe+No+nXxJm+RvI0brTOkp7p6HHUNB0dM5ol+xBpl6x5DdvXj3YsY30jH8stXT7U6W2f5dESiK0O0nytFs502UtRi45IR9IfHZ3XRGpNLvG6xtdIRUCN8nWtiWvUr00f1AWX3ZX8hChu1RSMHAPkeoz8kRgXUojQFmn0DFD3gubTPai5YlrZx7e//W1466234KTbiT+kXLhwAV5++eXqI2LqAs68cWgtr65+0xmrmc31akhNlrPiu9aO4pSTMUsnuSWa7BwSr8GtYd7vnkR97IIlx2/snYxZ93AXelQKdAwSDkVN7MemFnMWV7kuuuuB5PT1+xpWXSvGMUKjC0aGuTbCcp6iaN8apqLG09errlvjDZy9rjx/jRh7zeb/ZqfhKal52NTN57WqwujjhRdegJNuJ/qQcuHCBXjyyScBYLoovDeEf3PoNZk3l4ajuBezesjUzPaSydH2ReZnuCgexTSdlTuqoVqZY+ERLppXmz9jh/3pSTG1XywDtlFbFooRSI7cPyx1KC66Hrexn4eFaS0lp/aBAns5M6APuZFrkmOERhc8jQU307QSO3OX2tMAWPE0kqw6sDVqvIari2ovBUc+tUysm0/0MoNuXWX9DVO/7FOrNdG9T+d+66234Nvf/jacZDuxh5QLFy7AE088sewiJm8E702xFI+8IbNY9jySp3G71MrOE8WjmKfT9KOabO/UsmvTLNOrZaN/cyfbexZ7HAiq3LjLLR57ARsRseGa2ydQDlGMYi7WQzTWoiQfUdVY9UuOZf61gtDogjk36S2thvt5OAdz2dJ8RQCI8/oLTzUDGIDtD4C1fj0W+VaMzUfmpz0yH6Ctd3JoiW59Jbdbm/ABpron/aByYg8p8kc81EYu7n1hOu8+epD1I+0ucU27pM5oPU9HNZHWs6w225/GRbU9GzmceHticaNYcuXmrd2g50AdpbbLwTLMcSyj4GgdpR6rq/AsD8g8JUnmGnWoNvP62/tbEcGcm3g0tB5W5gaK2TegSwPEfv1LcC2nr38kNqItrytA3xfzaQ26/rmGvC6666Rwwqd133rrLXj++efhJNqJPKQ8/vjjcP78+fTFKn1E483rYKrPYKvOvnA0fybfi2vatfqwYlY8yhsZJUfntXQSe9wulj2cZGyN3tI1PJkR6x5os6899KY2sNUiY3lYlIcE9WU9OnbzYMCRHDp611kzUqPGEZoU6xrrWoHW0bQ27nqga8aKxJr5K9L2HolG2SMF0/xSg2LvfeX52Vhdp+yL+tD7rL5cBwuh6wNMtZ577rkT+Yu0J+6Q8vLLL8P58+ern71oPd97EGUeUtqNKKPdJ85yMm5hTWvFoni2nmcjeZZW9iHXvsYasyO1kU9Pilk9ehatS2LVkI/1YTbfqLNjV4/4tYeiB4BGiX302iW9qvNL3tKWnpR8AFD3rHHYele4hik3rXfSa1qvRivCrmnS9ywVa26mXqud3sZsLufaGvGzMb5OumDRJ2LzRY3KKfns9S8a4dNa//mf/wknzU7UIeX8+fPws5/9DACcixIx9Klpb0AvJ8LsRjCQtwa21kZxtlYmL9o7b0+iepZertHLj+pIjaWjo8QeN2pLDieerdmnukeg1HLKq/oW5A8B5HrE9kBg81Nf8gMjq0/qWlo6Tzc36ZmOAAgo9JRrWOemPMlnatD5Zlz6IGuYibYGbGvlxagmh6dB9EDM8633qKWtmKzN7IX2WXylvpffUtH353WctIPKiTqkPPbYYwDQLqLoQjYvXiMW5SzB1rwSezWyeqrztFHcy7M4WnNJTla/Vn6WA2j7KddItX3e8nFt8/Ymi1UOOVdu3OXmLMeSo8ZpTNRP+4S3esj25tWa6Max9Zd4t+cIKGKUa1jnpryCMcS8RltQh8saSO9zGqCJcQhPA3JcymHfn9dv5DMs51P8rhfiF645Zejryf2T66V13nzzTXjuuefgpNiJOaQ8+uij6gXpXajSz8bWxlGPUmNhqddyaUyOFrZqZbQWZ8U1neQyMa3P3WKWHtSYtU+72pJa1v6vZdnXr96klVHexCXvPThYivO6Mr0yd2qsaTxGjXF1usZp10WDOtdvZ+FKrQxGkgcM0+u1aUnf81q91wMRVd7DbA6JjddW85dq1V5m37vOAAU36716xbfWW0shwrPPPgtvvvkmnAQ7EYeURx99tP4einkxkjeh9ob0YpHOw1adLI768fSZ3GyvVq1IW3CmfhSz9CM1lsUQEC39FIN6p9FrenNpNqpf06LXSmKXE3fg4qPYJxbHPk+IuIvI9OWaiPa+zs1fOtXow4b1iCQu6rA1FM7dt3ItkQTBlWuNXnM5TDlao2mqR3uUa0Edy5xIz+pamFh3nTjXYlZb55Pzy56VevK11Xxzrcp6i0/n+ta3vnUiDiq3/CHl3LlzcO7cue6m1N2IZste3BJrN5eMeTUPE2v7IblIF+VH2Kov9ZpOcla9qMZ4DGFyC5YjdKNXW1pGsw8bnZfGLaxyKLgSkmmSV0b6IKCvU+UAO958LcAZsR/nYOfTnK6+5Jy+Jtxi/LqiWKyZcOWa1HnKtbptroKVHttCVay9Dp5e3TcHd/WVHjM+w2QO6as9F1+p32mEPw3KHhnzFx9x+kTlVrdb+pBy7tw5eOSRR+wLkdwIIk0mFmmWYNpjRj+Krf1Ywo1oPZM5S2trdcq4TgxhcqeR4j7WRqt2sYxmROeZtXcZi/RRbfXGTLTdKPVyvWR/q6Y9BVjcfZ3nB0J6xJ7XarF5SltKD9rr2O9Bub4oLnkNc25mEAnf5xRsvX7a+ur6occkkb9Wjr7WTWIAYHtXfC/mrY/VlXNOoGHNB16z02Dz6R5OIT6f18+bb74J//Ef/wG3st3Sh5Sf/vSnFXsXr4W1G0dWtxYuPh2zuRms1R3lIn6Uk/EsF80T1YtiPQcAgICoc3S0asZz2L3dDIvmHoqj4GhIqyP1hqHysND2lmKtr/pQiUboecrRmrQ3uQ6rr4prvXJdUTxVptedvCbNuiyu1Rd9KeurGMkasfGI2PMKNusWM3BmL62YtT4ApZcJNKz4smbltHUK39pTWkf6Z86cuaV/7HPLHlIefvjh+mOeYvJGFeHiW9irnclfgkf6y2BrD6x4tq40i9PmlDmZ3jI1o3pRTNcDAFAOKyfHPt+/ZkZ683q2TJuTYq+GlauZFs/2neVZHKHe8DNr8Pa3PhCUsTxE6IOle8CQWiqHfY/amnguYWkqVmWjsAacvSjxhgvPtlW+5tpay54g8v1pJZsvsFWr4Oh6HY1J67SylwmIJL6+rj4Kbtar65Y+S7OvEwCAf//3f79lDyq35CHl3Llz8Pbbb6tvdukvwZ6v8ZlaHrZyR7FW38qJ6mR0Hudpo/pLa0qd5MZiSEZg2Br72qDOJTk6RrF9mteLjFv7qNXJjrIO5WrMeQCU3KiXqI86f2mjuCVOHjAuJ9YluZKHOOVWXPmKGkaA+VvlZN02F8dNS2pBwX3+HGnrgtbnTHCMaMasWhID0J55XzQmceRr+87mnwCP0TWQeHXpekHXz69e7zOZKKxwCAg//vGPO92tYAcoX51jbufOnYMf/ehHjKP/g6td8NLYccZL4lFOlJfVZXBmnoyGcwAAB2LUuDbq+f1cXo9R/55GM/PBIx6Y9GEQPVg9Tot7c2m5Vn2ZjzBz2LgbN24M9ZLRlAeK9LN1slz8AJ8fWzVv4mgNVo/Fe9xSGqZ1qC8fsi5WYrVGgAFo/6IXQ6f5I1rpd71NoPO7Q4So2WmUPZkg71XjqP+lL30J/uiP/ghuJbvlPkl56aWX/IssiembIaPTYkcZa+vT9FG9LJfBIz1lsMeNaDhXbtp81Dg68polhmT0+9A4GrM0lll16Vek8+Kazurf6lnLlTptDnrTluuRNay5NQ7L60hHJDXEvLJOZs9UPa1bcVsnlusMp86wxmkNWbdg6HBrhWPC9r1hmZFgjS+vD9Hp6+MYQPbfNIg8R43TGpYWA1/2NoHOr7jkYe+zfLFH08D3pXIoOOGfPn0azpw5A7eS3VKHlJdeegnefvttANAvOAtrF382J9JpOVm9hUfrUH2UY3FRPMrJYm0ub/6oB4vzatsxhMntRy+GKGtLTdyr1aPFyZjG7VJXxjN1tHh2LNjyWQx7La3ljRaH8wNDHaH5NNebK8shtnkKrrOSPijXcOltwkjrVkzna9cjxdMeNFzXCQLPhenedHwrz2JqPYLVvSKalG/k0vqWtlv3BDqfrrG7BhE6X+ZrfuWEr/YIAN/85jfhVrJb5pDy9ttvw4svvuhfbAJrvsZHORrW8qmfmcPCsk6EqV7TSU0mPpqjabzcKObxGY6OVqznAABQHf0YraNp4l41bmS93h5YX5ZeG73a3jyZ2lQra1nzTA5MN2+xx9Goxsr0yojkASL71EYrZvZE65frhs2LZSC45DZcOeQYKQ9T8ZbS9zypeE8gesIWjH2rnsSyF6Lp90jxofla/Ro3tNWfQOcjEdIaxafxopf5Wv1ubbIn5D4AwL/927/BrWK3zCHlxRdfrJjdqISvxTSLcsw3L8mJ9NEc+8CZXjPxTM7StVk1JKflZPJpLJpjGpGM0I1ajNf28/25c+vQuMyXV9OLZ3ooRrEVi8aCo7k7jAB4o/FZi+ahY32AJNZlcW6sTjOvhzyoZiTwNDJc6tLv6OPWg76vc0TtD1o55tPevRodpvsHAhu1uhp0bk1LXmO3Fl0HNJ/Woda9zlSP0OWz+nJt0HwAZS6Y1nDmzBl45pln4FawW+IXZ3/wgx/UH/PIXxT0/GxszZy1cFY3gnfhlmArttbca9RuIwCYvxCrx1o5+xdqtb6yXFYjsfUA1R6kS3LWikU59KESYcktGTMaT7sLVx5Y3UN2AgTPCIlC5eo3wACTttQeZ5Xbn+lnagdzVjwB27fmFT6APU/1J8D9mVNflxJGrp2GZD2pidYACP/7//vf8KUvfQmOsx37T1LefvttOHv2bPXpzSjytVgGZ3VrYa9fGrPys1irl+GWYlpT1tfyKEe/Iq2Xn9EDIEwuH/sY1rF99Xl9TtyD3le8Li2eqVNsNEeOS/O0OjQnWmfFZI93tWyPVmwph/MDCMlTqGLK44yQKAyuYCwYZxrK3FD5MpHWY62KbazcBJim6Ki2q6e8lp1GzjXXlr6cq5tX6cOah/nKOsv1xrTE2HVCezP8wklfrkf2CDDPhQBPP/00HHc79p+k/MM//EPF9E+Lo34GR/HoT+e76NdeS/Sn7SXxkTwvNlIjqx2dp40AEP5VYp4L7icnctR7OThYHqOjxMUyD0fJa5p9xqRGi0vsxbw5dh2z3OKYeDCxBxjNpTzOCGuWjptT0gjPMe2R+lp/FU+gi6m+shfSZ9ip580d9RFp1NqaD/1apjI45E+DP2flxHS/+Zu/Cb/1W78Fx9WO9Scp3//+97uLd6mfwTQvi7U5l+gza8lgWs/ilsQ136oR9RrlLe3T4uwYwuS20Y6VHkCJWeNIL/1a5ZemsfRePclp9by56Gjpozwt38v19NRf07w1alykN/PIg6dgJA+oWoPxM0IEBB03dZlvpsn1STHrH8j+k560XjsfDN/YE/O1FXN1c0/A7kupUzkUtYU/A98vdYghYhenfulX+uocyH1tXYgITz/99LH+a8nH9pBy9uzZ+mMe76Ie9bM3u6OAtZj2RrdyNE007+ieZPZT6ztaVyY/y9kxAADsRo2b8nW9PtI1trUW8/q0Rvll8Rmd5KivzZ/lrL6zsYjXsOTWGEfXTS2jZ3lYBoTy0Cp8wygwGQ2MKPD0WIM2dcNdr6Kn2dF54U9ziLixX+brK+qVuecVMH8W8ZhSBwD619bS07lB9721aD7r1/G7vRQ9FZ76//qv/wrH1Y7tIeV73/ueeQHv6kvsxTSdxJlcijO5kS95TxPleXFLY+kzuZE201+Wa7X6uQEQJpeOGgcqZ4+0H1mbf1HtkjFTk/KU03yvRobTxkzM6pPGNW0095LR63uEG4rNDx1sT6fGYWUbJpyKsVbVMSKUdrR11AxNQ/m5FvVbMySu1KBrZxjaXsi5ZtD5Wkz2Jfdf67XzJ9B6IT61rrbisxxZw1iDZrJPgKn+cf39lGP5Oynf/e5369/mAeh/5r6Wn9VlsPc7AlGuh7O6ERzFd8GZdSypsYTT+H4EgNTf2NE4fZxqW7/nsny01iitxK0HL41FfvQglrWlZiSm9athq84aY2a9EZeJdQ9fhP4hqHFG/dmZFFir6rimlHolva9fs9HHqm/06dabgI4jX+Aqketx1lf9Cfg+JGoLP1yPzHH6qhzx//iP/xgeeOABOE527D5JKT/mkRe4+cbcwR+pG2Fay6s7irUYnSfDS5zVRmvTcGYfor6XclYPbZRxhClMxyxnjxy3eeX8dp/6mPmytJLP+pS3+vE0UUyLR1irs8bo1Y9yMnpmWAasuPCFQ/JQKlirXzASbcEgcU2ZcPFbLd4rYuul4DmbSWms+hoGvUbFZK0dRmy+Fie41GR64L0UDS/Z+qj+BHg9FLWkD7pv9l98UXMa+LyVU/b8qaeeguNmx+6Q8t3vfrdi68ZhxSKfmqWN5twH1ubOrifDS5zVWvoMjub3+s5yVpz6PAcA6rsaq99GnbP1Xh36BWwE6Ndh7ZE1al8ypuVSjeZ7+VFfS2Ja3SyW3C6j16eXuwuH01OKYTZOgYrVfUDOk4JQM+caLUXikq/ztE/VF6+J+3qprRK9sm6Gi49Y+6hY1kTuq3166yI1uvlpb3T+IhF7oM1t1iQ+WxfleLla//Tp08fuoHKsDik/+clPzBeUYu9NMJpr1cri+kZO6rXcXXR0/mwvWa2lH8Wy/micfln5lobrEBBLrK89Seko59M00ziZzmu9tvr2Wvf1JeeivhUrJjkrPxsr5vXh1fDqjIxevpeT0Vu6+vyZMQIZARjWak0SosXZm/MoZnrsMdRrVu+tqmgMsOtL24cuJvJmUl131z+iGSs+X5dcp9Jb6YeuC7g/g3h+Zd3UZLxyyjoKZusqXJX29Z588kk4ffo0HBc7NoeUs2fPwvPPP1/9zIvtaUf9UazFluZa+SM1JI7iUqvhTG4GW/WzcU8rOcnD/CaevrQYiJHysgepbTneF6/Le2ljvyZr1OfQY1au5xezYtboxUb6sfRaXavOiC1Zl8VpsVTd6UnEHkSVQ8JZWOaJGgxDj1tLpDeBWd8kH0BfU8FWXq2p9QkCa3WJTubJ+swnRuNFU+pVfwIc0/mh9wsX+dpeaetoosZ1rwFZ35NPPgnHxY7NIeWFF14AAP+FtF5Uz6fmxbM40ln91gvQWYvHZ2ISe71YeZnc0TqWZh9xySNKLZIR6lhyOZZr5jkAUiNj/dj3x+eQXyOa6KuY51t1qdYavVgmX2qoeTU0XaYfT0Mtsw6LS+npwwanr8IheWClsagh52AYOUaD5xrFF7jmKAse1AAAIABJREFUEWN5Xm8TaLjkKrjoZB7bU4DO7+oIDatBexF9AerrVNc+4AOIdU0E55z1nT59+th8mnIs/nbPCy+8UA8p1Ky/qZHxIy3lsnm74Gwsm7NEt3S9Ub1d8JrxKK+NADD0t3e0urm/6QP1b/dkNPH/aVaaxZeY9eAc8a2YVntJTBst7MUt3xpHes1yo3rGzQ8a7QGuPiQ1LPJcrPQAgEBoQ7NiTPY2gYal3qkl96PRyH1ZQ8ZFDbXHOe76EPRrcUodba5p8Nf7l3/5l3DU7cgfUt566y34zne+U33tppt5kK7h7xtn4tZDaTRnBGfninIzPVKc5UbikXYa4sOIxsmYxUN3+PBi9mi9PtSsGOXTN/kB33vwLtFoYwZncotlauzCDcfow0/jZuw+yIXWxUoPFqacpx+JdVqv5wk0LHJljPlKnerzdvr+jD5cf+bMXpOcFu/WOXPTwPupHPEfeOAB+JM/+RM4ynbkf9zz/PPPdy+UdmF7b6pd/Qymb94MlrmZ2tSiHE3r9WDhTH8ezuxHNjeqF8Uj7TQCAKAx0j6tei1mfdG4NZdWW84ZfWV1Xs6o7/H9euzXxZrHyrGwVUOaVjvSSX3EeTUAAFBeU8j1s6hq6wNKcCbv4WAfKZb7Y+lHY53W6nkCHCPHMkZ9Waf6pL2uH0C9p7kP1Z/ra/1I0/bG27uJJOuYfa2fKcT7B5hqvvHGG/DGG2/AUbYjfUh566234K233gKA+EWUGu1Fjt4wVjyDs7qCy3xWj1Ys6tOrL3Os+aw5MnqvN4qX1Im0I3V7DskIYmxxxKieFWs1uU9fpxa3+vLm5rV0XotpPuUy8eJreR4na2t6LSfiNPPmpb6n10aJJZeqWR4qBQt9l4NKzsylMJJcYx2Zvfb2wKtl7jmQmOyzrLesHRzs+FQ/DW0OAGUdMk58tVbxM/0oe+jtI83R5qJ7NIUIR2sS4qj/Eu2R/nHP3//93wNA/5G19hF25scHS/xd8FJd5I9iyUU51txRXhZTP7POLJfBOgcA5o9XphgftXr97670sZHfc7H60UdqGufx1NwbZOBbMWvMaKIcTRfFrXFJX7twdSQPEYadGlq+9fA06xuY1Q7mlni1mLEWNYZEI3WOT/MlrnGjJ9OfQOez/qBfu8ZF/kTqa5+gv97KIcLXv/51+PrXvw5H0Y7sJynPPfdcxYj6DYSa9oLSN5rMz/oeH+FsftbPYFlf00a1ZG60zlFs1aS81Hh5WWzFEfu52ggAgGRsejrSWMPc5zyN9aPdj74efV25L5pTbIlP+ahvL+aNUZ0o7o1ZvafNcnUkDw1EgUtc1LDy2zNp5lDUt7CY1+ufYqq1/MUxYy3Fl3gW8xj0edRX5yE9sJ6Aa03fmJ8U6q6jaB+7HGxfsvY08H46jlip+8QTT8BRtSN9SPFezILdFxfAjXtvHOpHb7AMtvxMT5p2lxoWZ+VqeivXwplcb64lNShvcVqcjwiTW3oAwWkxmU/7tvL52PL9ka5ZcpmY1Fk52nyaH/FaH5bGy6WchZfWj8zLyXB1JA8NyqXjqMQpBwkc7Junoeb52Vg3r9YzKhgapr6M1zrCp3vGNMXX9tSpV306Pxh+Yh+1GtZaZX9TWOfkXP/0T/8ER9GO5I97vvWtb9XfRSnm/Vggo9lFn8FLdSPaDI587ccEu+jXwhldlhuJa9ppyP0NnFYm9yOcaASw+9A0EkvzYlpcux1kbqSSj7A1FpzJkVo6WnhkzGg8rZs3PzjqAwQcLHIoZ8YD7S7YikcxL+7WyexRA9yfORmX+aove4r0Vg90fs0vtLMHmm+ttcF+zQB+3T/90z+FL3/5y3CU7Mh9kvLmm2/Cm2++CYj9jcrzLU2kt3yqz2AtX6uVycvEoj68vEy+xJm5d8F0LguP9hXFNe00lnjhJqyPFqZc/ovngDrS/u064OqsuMZnfcpH2BqtObx5LF6LWxatwxuzXB3pww3LgB1GQDXHnIPGHa3MG8VaPS9W8rV6lpbFtH2R+zWB3kc9zl4D4PNUn1int3ylh4otX6wZQMyPvV/qyLVOkKyPcsreynkff/xxOGp25A4pzz77bHjRRhs9os/4u+CsPxrL6rQ8K8fDskaER2tm9PQr0mbiUttGjqcQH1svlJM6PTca9Z76dWX2RvuK4pqumOd7OZ6WjlqOl6vNk9FEdT19lO/q54cHAuocwfQBUzHJ8ebN4Ciexbvo0lq5L3Jv5pgXt3yvJyhxqofmF06Nl36bkPmIyOOFk/0oNSQ3Df36Cy+m6fa6cK+//vqR+yvJR+qQUj5FATBerB19aiP+ErzUj/qguiXzZ+ppOIpLrM0l8ZK6+4oD0HVSDrpRi1GO1uE6PU+Osic5amvzuJF4pJN8poe2Hlsb5dB4JkdimUNzNa2l1+JSY/Y/PyzKqHJOXNahteV8VButdwTTGpZvYSvmaWv/yr5o+1T3SolTv84p/ebNfTCmzlF8WgMb6H0kPujr9/YEcNYA50pdOfcEeX+MIybnPmqfphyp30n5u7/7OwDof04+6keaKN/yo99pyPhRr9m6+6yZyT1KePc4AAR/BVnj+Eh1PG7nxOOUm1uHZ5Hm4OCgu3lJix4sFmdpvPzsGGkysaiGNnocezgWzczJByfl1IeckaPVptw+sBWP/GxeF7PWRfhOJ/Yw0lfO6QMAgVPzLKj73UGCcijiEO9ll+PMw3hnjZpP+d/93d+F3/md31Hjh21H5pOUH//4xxUj9jeQEb9wlq/lW1qLpzUKln5Ga8WzddaoKbGX6+WtkZvB2rq9OaM+EEHNgXpz0jk6ch2Pa5xeox/bvP16s19RLp3D0t64caOLaVrKWXo5Znuzcj1NFPPilt6KVYzcx+kpU0eNQ/Jgwfk/K6fiYgqn9rUD9uKRn83rYmUvaEzsQdGxWMkj+6jp2VxFwV5rnOOEgtmnNYH7UHzSR+Hk68bmkz7M/ckcUZP3goyrNZy91/jHHnusi98sO1KHlGgzl/qF0+JRroctPxOL4tk6ozXpOiyNh0f2ZUluBmfrWzU0ncyZRgAABESd47EeR5wc29zIRqvvzJenLZbJoZyGo7ilj8ZMrqfJzOGN1KyYO095aEwO49g4xzus5CAKrMWBYwDe2yiWNTQc+Rr2YmWdms/2VfgVly9D3/cLpj9nEA75PJY/wake8SepmF/6rCGRI9bG5ya8s9eU0/ijclA5Ej/u+eY3vwlnzpzpPpLep79UG33MvnQO6WfrZGNLdBEerTmqt7BVZyTPi7cRAIIf9fS6HnucNU5av2/Nt7glmujWkHkIRTg7ZjSWNtJH+V5M5csDQ+HUcRL0OBHXatN5i3lrG8Ve7cjPxlwdWWcYE36nF/MAIHBK+oZmGqjX+zPn+X0/es408HlauF8zgL+nFv9nf/Zn8JWvfEXVHZbd9E9Szpw5A2fOnAEAUN/0kU9N8638kVrZGp521M/2mo0VTH0rx8qXmtGaUa8WlvWteaNeaJ6Vz3Uy1rgWszDANPRxXofP1c+p962tuZilpzpPk9XK+Uew5KJxJEdqI720bG3JVy0CIBAOGkcfOGVkMcROR+OyDp2vysm8bp8Aw1jul9REfjZGrYuRsBWje1PjYM9ZfETLR4C6n42bas7h2a9y6SPxZ476sp/CaTl8nsYh8DXXGs7ee/xR+DTl45Fg3/bMM88AIrI/2Y34ZVMt39Joeq/W0thSP5pn1368eqP6jGYXbNX35h2pR+PFZOzgAADxAAB67uAA55p6vHEABwdIuBaf5oRZM43SrDVlLcrx4l4ejY1gyVm8N2Y1UTyqEY2Mmx8U9IHBOJqHfczEQW1aV+NqjcRrMYIjPxsbqSl9hsnaI63mAyBwqvcBoNe0UPMr5/ig9IBCgWVA5ldOLgG0demcx586dQpef/31m/ppyk39JCX6FIWaFs/43htiyZvFm3e0p9Fau+i0PCvHwrvkWtiqqa0vi6N4pKVc+wKhadw02nGbk/PxUetN+/JiIxpPRy3KLxqq1bCs5eVZo5cv62hxWceqEY0V1wdGGRtXR6yB+tApI3s40ThiV0fWZrVKXFkn9aVZcQ9HfjZm6aJ4h8neRGvmftE3f+KED8A4LBokfpU7Psw+7QHn9YHgaBZdH7T1Nrm+f9brbWkL/+ijj3Z5h2k39ZOUp59+um4E/RNu8enmafGMXzhP782dnWckt3Br9JTZNyvPqh3NSS2bG9WM+vbWunRdI/k8D0B+apKJA3g58fqzMc3k60ZN7msxK0fjPY7GNByNGc2Ilpq15tERgD/MCi4PETZOgYpH90mtI+azauyCrb2KYiPatepMhB3rtOz1y/n1OwY+4TyfHUyqhvDSJ1zlZYlunTZvaW/2pyk37ZMU+ikKwLRBIxdgxpf1vDfhkljkWz0UzusxG8usM8rz1q7VoX42V+Z52MqXc0Z1ovVmdZSfvmQN2Z9dO8tZX148ypXaYqP1Mrk0n+o07I1ZzYg20oyOwB5gBc9rRKgPD6xPGWxc0F8XZ3UIhjZPxfNYaxDMaiaw5Dw99bV4JqbNMVInqwUo12vzAWIfACYOofnkGwvh9Hq3ErrPDAGYqg7EJxwiVr+WEOsunLYfkfZmfppy0z5J0T5FAQDGyfiob2m8/JFYiUd9WH2NzBXFojllnsRWrexavVwrL1pHJj+jt9ab1ck4HwH475X4tZdyEmv+iNG1RubNQWNSp+UVTuZpdSytO05395Q2o4lGgPIA4w+ygls/lahue+D0/TBDCmkdgQmHWCaiPUCLEfP2xcMjMU+b1WXivk9fo2U+ALDXuX7HwCeJ1O/Ld8cVYK911RGOhZD5lQ/2MeJPnToFp06dggcffFDJ2K/dlEPK6dOn4fTp09Uvm0JvmpST8awvOU+vYandV5+av+9YFsu1evtZLKqp4Ux9r78Ia3lZnRZvtp8Dirf2jE+t1JJm6aV5OhmLfMkhtgOK5L3xMDV2bv6AUnXTQB4w7fHj9abGWR06H0CjUcWszop4xM/qLM7Tx7W8A0npz/dVDf/G/CYlscoxReWmAZlfOSkP9svjMvyjjz56cg4pmU9RKKfdsDN+Jt/Cxby41bvMj/qktaW/71iEvbVY64j21auTqS/nkpapmdFZHEA/f5QzwlnrKmato/QmzaslLZpbxpb4dI5odDX0ARxoPK2bH/bnH1RYfEqsz5ZaA/sYfWhpfbKHGlkffdBZB5R9HVwOI6ZxI7WAvTaTP+l29Pm3tqUY+dM3pSXOSo6FkPkA+p6N8pK7WZ+mHPrvpGifomgXmbzQ1vYtHGk9X+qlP1p7aaz42VgGFz+D6ZdVJ5pvFBc/0lNtpMtwWpzOka1DOfml1dX6uHHjhlkj+ioW1aAm59d61Hypr6O80wL0GqrFaQw1yLUyx+wnGAEQJlhGwTEMAFjGCQPj2upLjwXXyhQXNfK90LiCa16dmmNtLu11k5oopmmX5EX6TC1KFX/iEADG/alO/QYlApUr/pTYVC2n+dNXfc0oT5UshMwHgG7dhcvynvaRRx7p+H3boX+S8tRTT9UNoH/yy3CI9qcDlm/l0xh9Qby4FhvxtXpebqb/Ea01h5UT9RT1Si3T49L5RtajaUd03pzRmr06Wo70aZ+RVhrN08zKs3gZ03SS8/y6xvmm2z1MtVFoR3K0mJtnjADtwUe5NpQ4Fpc8bAqnxEg9tm9EU3lWs62x40S8ljRexwxeK7aLNvJlDOprYvsAQDjq07oizr81JUZ+GUgTDFYB58SyNA5AW7/OWTzlbsanKYf6v8U/ffo0/Mu//EvHazfQiJPxXfWeP6LN+JTb17zZOqM4q9s3tmKZXKnN1snMr+mjWpn6Vo7lW9xSi25eSzXaw6SO8003dQgxtJkcLabqOw05gNQ0DbdDSMPGCHoPJi5rNDgVV7dhlr8ArxUb9UdiPTdyOGl+44jPhcxv6SLehMIXHOOhe90A4j3z+BEtAMBXvvIV+PM//3M1tg871E9SnnzyybpwegNdwsn4rnrPH9F6vuSs2l4db49kbtSPnN/KGZlnFGtzRJj63n56a6OcpvO4XetT0ziNt3QyVnoAAFO/i9GaWn2Pi/SZA4V7+DA0mRx1TmWtjfMOKEU7c83pOD7WyKwtjTXe2n9XWwccw+L18l77bEzaLnUi34/1BxT6Ok453G+c9AVHAsi/AZdLzQREWwQi8GDPje1BnqP8YX+acmifpJw+fRr++Z//uePpTXUXTsb36Y9oNS5bO6pr+VldFmd12vy71IliI3NntRFnaSyc7Su7/lHtqB0c2IehYt6DROO8m153k539JYeQtEbUY5yytsb1BxM7VnJnrjkV62NVz/kKTmisvGlAHbPXiT/Evdf8ZsYiP9L2XNk/3584UZsIkX9Tub4kKhxhJSeWEq9tGa9xDz744KF9mnJon6SUT1HkTXSEA+A3YaqT8X34I1rqS46+6MXXcq26mbjGW3Nk15jF0RqitUb9Upyd29JG+ZSz6lpzaBbN4c2n+dS82BKzakl+1Jd899CcgPoAjQ4hIwcYs4fC1b7pA7s/qPSciE3FoA3GAaVFWp8Opvuq4qhGdRs2a+0Qi66HbJ1RP9ICe52kT+v4/sSReBMRn+dwFyl0OOheKwBtXTq3Jv/aa68d2qcph/a3e9544w0AmBatXTyS13SFj/zoQvXm8fwRLfUjjcdrsSg+0q/kZc9rYK9mNr/4NCfKjbQjOdn5rJ4zOd58GX/XL61+Zo6or6gOIPR4vhkjYPW7HMiPWk7tdeZKj3ScMO1/zqhhybVxrlwLTDUbx0cyZ1l/4aHlU1zjrFehRY5rvZrecJcvsDaPpe1189qNPD83px3NbVTvTzqYOepj53fzUp9/q3mNQwrnnJ4rPPUB+DqLr3Ga1tJn+YcffriL78MO5ZMU7XdR6AYUjvLan6KlpvCWxpsrmkfzR7TFtHytnlYrquv1kamT0Y3iqFZGI2tl8iWO4tS0HGlRPW+fvVqWSU30OlKfciPm9SRjmjajkXzB7oNz9q1Ramp9qRWcNr8WA2gPMI1ruI1cS+cBACT64rdgxV3PSczmhYZp7eopmIDwNdXW6OGZAUpF19LSHpb4vLeyn9xvXFSba5B/I5qm6MtqHIjXS99DysfrHudfffVVRbm+HcrvpPzt3/5tx2k30TW5ffoj2owmgzPxbB3Lz9Rb2t/IHJqOclEvI3iXvqL1RTiKj8akebElFt3oIl8aIpoPyu4mPPvqCGQuJHWLL3K6uZQbec+1h1fP2Xk03sVmQZMsO6BYD2kVi3k41tfL+d7Px3jN2M/Ps4tW58recr9x9lyqhn8DHtY5UaLa+FrW5Sn30EMPwe/93u91mjVt74eUJ554Ap544gkA8B88++LW9Ee0Ghfpsw+tKJ6tMxob1Ut/SV+edqSupx2dz8JR3NJntBn/4OCgPrgOgOvWMu9BsJRjeHr66ngClU+NIofWHT+80IcoP6AUrHFaraqfJW1ecWiw+qZ5ArP9dvR8rrY272Cx7GDAa2hc9OBdNm9cR+dkv2VfG9Z8n2s8l9DajVPKAL0WppzMWnTOi1l6i/+rv/orlV/L9n5I+Zu/+RuVj26+WW6J5ij7a2mXxLI5mVq7Yi+eyY/wWmse6S/SZHtRuQNY7WBS6mZvYN5DwdJJvz68zQdq8+UDv2rlqGkKR2sWrPUj5wLvoFLGntPi2BzBtV4zWFtjKdRaVXC3DmudfB0al8GypsZ518ioP6KdGdFf2V/uNw4bq+4Pz+EyWXviZIp8D1Q+XMs4P6Kl/EMPPQQPPfSQqlnD9vo7KW+88QZbIL2pFl7eED3N0rylfuGW6kfzLa1c29I6XszqW+tDq6XVXoqLD9DPlcmPepdzFYvqZXC0JjmvlmfV1vKqDwf0kbSTaa81jWmW1dEYOyB4eAIqrvPMnPQrFnOa85G+Jxw9wAsu/VAsa7U4NqdxWj8KjvYEkFwJQtPmNvAs7Nc3e8HrrK2519F1N87zo3kpF2m9XMJ0/Uw6gvk3YKibs1ME659fkQyXWo/OrcH/6Ec/Or6HlMcff5z5ZXHlBqhxGY2Xp3FLfcll9ZYf5cu5rLVl6ozGLJ2miXK02hlNVJtaVDcTp3WX6mVutKcyptlQ/ACmA4qjp1Z6iUzWo74Xk2bFCh89kCueQMO0hjFWPc0jXK0tObZWyWkP8DIvxXafRFxzWstKP9r6vbVJPPuV0XBJY6/X7oeV/vX3Hv563Pe1OexY5Kf6q3QTIhcJXmhJrZ6beG1Jce95bpSPtK+99hp89atfVTW72t5+3PPGG2/AP/7jP1bfujlKPvItTuMP25dcpPf8tbTZWAZHfibP03jxCGc5zR/JzdTJ5Gb2ZyKA/xjH8w+A3vdc0/Y+Mu3Ba/lRTH2IT0/WhiegY+EjYu9TjVaHzlWw6Etfs/bwLvP2HM31tCVk9qZgfZ/ILtW9bX5rgfZB63sHA/+QYF8j8cNf+t48kT+itTlv3WRfyV4y1M3JFSKt8cG698GN8pL76le/Cn/xF3/R6dawvX2S8thjjzG/LEreHCVv+Z6mWLbWqF+4KF64qF7Gz2iXxoo/grVYtl7RRbWz9eT6rHimH2vOYlHPI/Nm+mHzHwAc4EF7+Hj+AQC/4elWDjRynRmTOVoNry6NRQ/fiiegY2g1a20S7zgxhzmvrAnaw6poesw52mvP8xy9t46ndUu+xJOIlmi+lSN64ViuhVV241zL6zcN56wephgn1vb7OfuekX8jnLIvmlbW5+HqRGvflRvlLe2rr766t09T9vY/c3v99dfNRZYvjbd8T6PxmbysX7il8V38fcSKb+V5OZn6I9irZ9WO6kbxkTWM6LNzZfBEzFy5exEfAbmPxJe9I9QvLb7mV209iE3tY4wRu7Vq66hzknjds8IBMgxFIuctXF0HCDyNHNNeGtfyNL7lzzPMPZHeSk+056Iv+RpGrDIovc246VpPDAPFc93mdLh7DRRcarC1Asz7UXy6r1D9ZryPKX+5z/uja6lM70PdqvKNcKRW5cuCWi5bb91/Oofch77XXblRPqP94Q9/2MXXsL18kkI/RaELK39q9GKFs3wrT2q9vOxc+/BlP1k/igHo83g9WTFqnm4ktqQna11eXa9GhKNYpI9qZDCAeK0PoPv0BBDMX5QtHP2RkKbLmLY2gP460TRRrPAICKW9Dk9AxXK/NFz1Wo3ian0UTowcSw3lJky5nJZjNm/Us7JHUHUS129hLyRVxER/7jXh12w5voZPYfeyF5/sNWEIh+07DwgJ0SlATDtzPbk2Z/Ej2n39z932fkipN1toC6McjXlaK1fjKRfFD8uPtIWzfG0to/PIPchoR3RRDW9tsoaGqWm8t18RHtF5+tEamrE8ehjRDigaB8Bw1uj1AdBeD9q3t4aRGKtJHgDRg9eqU3nU8yoW82gPf7UuaAcJnZvyKKZ1c3ltOX3PdVWjGKBMwGITTeefcwi2Y3x93Oc6v6bGRf7EWX1V1uyv9+l+V0b601D9+h2FzySCpz13nNZH37cX07RW/pr8D3/4Q/j93/99Nb7UVv/F2ccee6z7fRSA/gbo8VlO4yM/o1nT33V+r9YasRHtGrGszosVHMWzOKsbwaNzSU0TlOEAtF+apTF5U0uZmFb7f62M3PC8mHXY6R7EE6i4q4eBTosLbhrIvHOuyikP3ejwMmnyuK9B5xBrUPrvakwFZq9h6ft9Tb6Oe3+Xw8qk59yIL6ae41Y/y/y2r8KvHDYIQBsMdA3w+oRNrM/j47X5sRH9//k//8dQLrPVP0k5deoUIGJ306ULoTGNL1yk07RS59Wy5lvDt/rJ5hffwp7OikV+to63Tisv8/pENWS9aI6spviZ/AyWe0zNytXFAAc49yTvUgcAgGD+2Cdtc43m9rW8Hq1YJsd64HaHjonkvaGio5qCrfpOvNXUDgzWQ7vg0lPPWTznOKZ7EK1H1utwIxQd1Rv5Sn80V+Lej+eoEcFl+pgZWSroSfTfNpVrRN1eR67OspdAjPbPuAn0nLGWZH+VlxtkcBafeR9L7tVXX4Wvfe1rSsYyW/2Q8vrrrwNAW0C58VOji6NxmZPVeZz1UNK4NX2t95H84kcPzpFY5OsYAMCO0evUm59afm5dZ+mp7aIZ6c/rLaOXuCWC+rsoCPM1QeVzbMSig4lm2h5GMY2nXPewpXHBF476RUtz6I08frCTGgrHsXZ40A4XpSeKaT0rj2O9B2fuaTBwWWMtAg1q/dZo5+vY7rfXxnNURHqSvr72ZvLBHfpdz72mnwsp5D4AbVLohDbqU2gsbeW1tSQ5j7dilDvSh5RHH320Nqs9pApHTYvLGpHO46x+tNqW5mb6WmxpXrFoXzgGAJC/XwIAYMXs3jTs5Xlr0DRZHM2V7V2rRS3qQ2KaN917Zv4AABDqwaLwB3AAeICg3aSkyR/jYCbJMW29Izz1y43WuzkjD+gxUkPjak0Nz/2wvljP7SHbeO2BrXNTnuRtbPXBMcmbBgd3SXOM9tZjPTb5dHvsfZPaeI7I12s1Tq5Zva4ifwKmRtchhdwnnEipQHJmH0LHYoKrse410blRXuN+8IMfwB/8wR90/FJb9XdS/vqv/7rj6MNol5imzXC7+pIb1e/qrxUbiXMdAICeR2Oers/LxZboIryPmtJfMsdEQP87IQdlOGB+Cx90HItxojfkPPuEZb41HBwon/QIzShvHRbU2AQ6v8MaJ+JdfeXh6h6oOo12yCiaPm7xMY7mVPCUNHs6niDFVaHgyefbY/XIce/3c+g5Mt58HkLhExZzvvaQdw8Kcu7KIbAydE8YL7S0DyFG7jDT9ADQ7aXHe8eAJfpvfOMbqx1UVvskpfwuCgC/+dLFyJuyprdiXm2PQ+z/1C7jmm9pZDzS7+rvGovi1ms1xQAQDwCAfnqif5LScNOVGi1vbL1LdBLL68B6/XbBmq/xUf50jyTG2BrEAAAgAElEQVQ1DoD/Tsr0UsyhA4CDmacp9PXs72aqlTkmSS8qfWrr07gohohd3+HDYwKd32GqMbgOK+vr+qGxitsDWuMappyl0eeQe+jP0+MpR8eTb/Fe/uTT1vT90eNRj73e6m/iRKixOODT/rmw51H4TEtY6Xs86vOGvVh8sB+VV16rNfhXXnnl6B1SHn300Yplw9bDSeolX2Lag3SE6x4GSs6I5mb4S2OWr68boD0J+cGDHlYKLjVbfa7jNXJ9jq5PYllraZ0s1vyIT+kOwPz/owCA+mOezHzq397R7l6OaXNkOcl7Dw/zoYAKphoNz3Nq8XQ/VFdxe+BqXMPz/B1v1SA9d/uo58bzav1LLHN0X8d2XU2b6U3GkX/jfTS65Tqvp/TdBzzh2ftF1qocU9VG5Y4wrVaL8Na8LBasv/Lda7Mu/8orr6z2uymrHVJee+21evOXhqgfNADA5GlM09MHRjFLJzWZnCV+4bL6EX9pzPJ5zwBADhQWf3AAMPrJylRn2WEhE5PY0ttrj3XZ/rX6Gu/1U7jp3oJQzhT1E5WDWUtS6qcq2rziUCJunTuZNp/GWTzlwocHxROoNSjXYasGyffiVJPD2gNc4zxM+hL7Zs1vzTvpGpZ5Nm45Vo9W/17PUlv8SUdwI5qqi9eI8KF/DduL2/naAx65M8QJFgCFP2uz9SyO/c0+MYHLd82A8hrFsYh/5ZVXjs4h5ZFHHgGAvulyE5exDE9jmt56EGs6K0fmRbUjX3KRXvZh+VGtkToyd/IBAPhh4+AAgR9IALRPUyQG0Of3+l4ao+btV2avRrG0aA1ZzOaYtrXdjGafmvzl2Z0PJcocnln7IXlN12nEDZT6HZ5A5TXOrTHPbcWLqTpjbY1HaJKCKWdptFr9fHac15xiOuZ5Eus5Wr99rt931KPqN5L40zcuRQo5Q/ulryXBrr45OW7mM1y3T8k5ZK+anmkFB6DMHfBeTPLf//734Rvf+IaqHbFVDimvvfaaytOmy008y9MYvZFLrdRoOk/jcUt9yWX1mfyoluZH2sKVm8PBfPA4mP/UjvOf4ie/HWJaTPsxEMza+DX11tD32PveHo3OQ2sWjb1fuT4zOcUqdwDm76MUU/8fKe0SShv7ZdkbfU+RaevQeHe9xRc3U/OQMYOaj42r2MormMzNsOxB0VmapuUP4wkXjeQlbubtIY9ZteicGqb1pGby9Voy5vXW+1GPqs+/MV+UgsoiwSSeecCvxoG2/kkb5hr1Sm53D5DrF1zllXYAjD4d3osh4ioHlZ0PKadOnYJTp051PH3gArSFWHwmR6uR4bQ5PG4tX3JRX1FPiCMHjvy8vB4APWwAyMMKPZAAaAcXqQXQDxOTLu6T+treFvPWreEoppnWS/Q6Zmp2a6E3H/pyzDEAmOIiljHr05aoz8i0fMnJ66BqxDpYnNxU6Y234wuWtQU248Y8XSyoD6AdGDRO4rjHyKc9TP4Y1mOTH/UscRSbWVZ30hHMv6kcDZsPeEajqe8OAxaf5NQ1S12ylsar1ynRWjrGK9PUuPqa2byMvfLKKzf/kJL5FAXAf0BqOdaDXvMjLpM7Mp+sG+klF8Ut35tL08o6/rwAoHxKMv3YZ4p5n55MeNLNlec5KbZ70WKa1ntNo5xs7YKt+pZ59S2dpmGceHhbhxf5/1CRtuR/3haZtS+U1zSFY7ob2K2VxcnNlN5wO75gpQerL6uGF4vm4ri8h0ofVVFxXCOKoVpX4imPYm8umTP5Mfb71vRRnwyV15N8E6nAWBz0Ha577+zCgbYvhtbgGux7Z3zAScu8tzP8K6+8ovIjtvMh5eGHH66YPvyk0Zuy5CRvxWQNr6ZWz9NlalmaqD+rRnZOL1dqZTzOBQCghwkA+ikJx5PW+2Sl+ADxQz/q09J6uZLPzqX1R22k90xcalRu2t4ZzjVAjyGgqi+m3SDXMrmGyDdjqOROd+cOU59pSL6GGWfUVh9eEWZ9twdu4/lDWMdGn85+9nubmYfPMQ0U677Wp4czvt6X8Pm3juNy6RMm8mdOfa8ovHZdr82p/Vg9Ovpp4OuWln6fDsa+973vwR/+4R+amsh2OqTIT1G0ZukDWGq0h7MXix5kWS5T28vL+hmN9jCL4hk/0hZucsvBAqD/ZAQI9j9ZadpWA6AdADJ7EPlRrpUT7Wc0ZzYWxb1+Afr3AQDwT08mAgCBH1zaS9DrD8Fo39oasrymsQ4GVG8dGGqccl49GZtAHzN69ufmD3rqq32KvfB8X1vmKXNYXPOpTsZp6Wjtlq/txaSTmPjVJfOQb3IJ5uEjinvcoLZbd1Y3wKnrmXm5Rh7GjpOWec9GsV0/TdnpkEL/B24A7UZLTTbsPYitGOUyGosrvNZzppblF26XGpn8aB0ZrV27aHGOHVR/+rEPAACC98lKy5M/CooPCcWs+IiWmjd3dr8yr1k2Lvsz+QPQ/3HB+TDi/dgHD/o5NKuHHKWnJSbraHWtuaLc/5+8d9u1JjmqRkdJfhDDLyR3A8/AecPmBgECAdc8nmXEjfEvLGObwyMAMu5u27yHc19kZVZE5IhD1qy5voY9bH2zMmJEZGRkVmasqrlWe4WFe33aSz9LQeLoFl7SR+1aHsr8Ovfxio71OXJkr3lbursXw9peZTrO+W8z7UlZOVo/PuaFZtg2eIyevCpj/XjcV2RUvjTbIlN6x+8dXWsNP/vZz1byBl4qUv7t3/5NtVmQ8lCUHHZYRroht+2qnZV7thX/Xn+ZPvIh23diiPpnuq4HoF7LAPoLsUBrQ965+vsqANSmMvSj6LkKlDvjvMuVOmljZUwe9Vu1y9pejBcZ+g+5CTkabj8pYa+A3BhugPnyZCy3adtsrqP9UhHh2eqOYl65v/ygz33stsmh32L5dc3b2Rh2dUKqY9D/XDOi5u+SmZDPy6ZkbrHiycBjpfFXfDp9ABv9OPJFFuRB0xqVT70Tw47ulVc+t4uU//7v/1ZByANZYnCs3g6OHehMznje4Wx5lhv5YjKvPWQZP/LxRLui620AqpC42rI4AXoh0m3XVz2Xy+P02xD9zZTO2c+dx2W2zE9FHvmq9uNxpb5iu2xkB3qBcYqmbiyrhuupiNltdr8wa+crg80Ts49kVpe2zYbK/EyZ4C52js49xFpiM66dXOhxXPdOhR/lJM69LkTW63baZfy1XY0v457SuN/+oduzeY7hUluGlmV6KSaxVmXv6MeTe/33D6FbwmmLTOmdGCKdJ//Zz372aYoUCRucPJh39VI35N4hHXEGPC7rc8d/5jfj7/RRade5wFidPd7ePo6hO05dm+2oQMn/Zsox48tynsdeG/fO9V2d5WX6HdsuwCxOls3tTC/7Qm323+J5Er/85S8XmR2XJ/N0WVvKdguEsNDoF8vGTnXj2vNFYgL4QV+KeyNHvs4rBkhhUNJV+621l377h25PWbsup9ys9qas1v6MfpdH5RWZ5w8sJ1xG5aff5UmrumyLTGLnPs3kUvfKK5/bRcq//uu/zmt52A7YwC0n0g8dkw15hWPlkcxrW9mO37t9RBymz2yz/kb466se/Uqn24yN5OKONitWQJ6mdLvXnjYwbqS7Y7PjI+MC/s3s6elrnXOuou+rfDS8cTF5lZu1pcwrCtS15NjrfrFs7LTt+cj6T66j8VZ1cc68wqNy3dsAqD6bq7322q/ocvyzyLSJbRuGbQ9xtuaUi1WXypx+AdKXI2PypW36VDLi0usn00d2TPejH/0Iv/Vbv0XYMW4VKbtPUSqcoZdyJhvy6OD1bBnX8rI4Ih9MFh16lr8Ta8V/bUwAK05Ge7i+/F6Fy+COtv8H3tYxsjms5M7TZ36r+arEYn1kfqrcFAd4cXLq0MALm6EfKHa3g2gMVudxMx6zk7JxrWT9ZODX/WLZwNPCxfM3rklM9lq2K/wsF3UuLy48jr5eufV+b7RFTme7X1jJxVmC1Xa3ihOA2063KkgqSwsYqWL9O3I23v7Bx3Bd6twuVCeGSJfZ/OxnP/u4IuUXv/jFDEgefAMyWKaPOMwv4+7yPG52UFpZNdaqjWzbSc5i2zlUpa7LAJyFBKBf9XjfS+l+5KalXwPhaP2sZK99jvMAdcabjSVrV8bt6ao8q8v0O1wJPl8H3I3twFq8XEsO6vsspL8KvFglIr2ns/JX2upabMKPFSfetdcPu/biLVxn7ZjLCw+fE+si7k7MtC3yJSRC1uSlbp8ye5+w9adkxMaTXZfavipj93D1/nDljt81/BkURbm/gs7K777yuVWkyFc9MhB5GDN9xpE6JmPyKq8qyzhsvJGMHXhWz9oVTtSHHzMAU5xcbUC/vumc0ZYru/cjuQ1oB9rpQ/dhDljhKo+3Vsx415bHfEpY/9VYXrUdMmC9Z4ZMro1ugFmA2A1q9wuzHkYsrH8vTg+ezsqztpWp654Mft0vlo3a07mHS/EaCOJ84Tpr1+z8IiPS3Y3jTntms5n2lNnihKz0trDyfonNNa0yMfIykAc87968e69civHBx3E12yJT+mIcVd0Pf/hD/PZv/7arZ9guUsZTlGXDxBrcLmfomIzJqzxPJuVW5nGqvrODMTtIK5yoD58LALo4uf7OyWh3zvUqZ7StX/OqhzxJAci4G+jNGcXP9F5uJVjeq/mr2jG+RMUXsN4bkm/1UR5NPfkYbHxevJ480jF5pT8pU9di860UKzKPns+lPey8frLrwHfl+i6vt+cVpKrqI/NvkfGXtsjTbPcL3T5l7DB+d3HiFSZKZ30y26HauDeo3PMdxMZQ7m9DP3R3nqZsFynj+ygyILnRStzleHZWXuV5Mim3Mo9T9W39VtsVTqWd+e9N+UoGWF/z6A1s9dsUt9+QV4Eif8OHve7pffGYs3nJxrqTIxtbBLsGmMwbS6azYHM3IMeocID/jZU3whvDE3IrS9t9EfLrfhHqxvUSS0t4Rt8/eCzK7sb1O3RV3qvtUGdyNGX9QrcD2VPFSVqwGPXUNdMW3FI/Q1W4H7rQ8cHiMHKJnfsy03nyDylS/vmf/3nZHG1AbPOUHLq5Co49mJiNlXv+qz49f94hGXGkrNqucO60Pf/90hYrXda5sgDB5fc4zqclrXMP4EAD+9LsfLICqIMzKhCqB3zEtdeAWaMjqKFvULFJPrUfbpw5rMRvdRJRn67+zGO06b0TXqyRnOUga1d4rxQngPEl+2mODbuWZsQfG5fXrxvPA7y7uiz+3Tb1Z/PI5vJS6jaIzzucoP9UbsebxAvwPHhyj+vlZ6U1KgcC34k+swP2X/lsFynAFYg8nJne47CBsINeyj2frfnvyu/4tLKsLW1Yf5VDL+M83wb0K5nRBtKnKRjr2jw9Ma96TlHXAf2GOA/S1q7rebNKHXSuo/EwHbseOI6rT6Un/Vu/tu3N4a4t88EQ6Zff6hn59fhODBV4tp4/T87+xgrA+dHBz2T0gGviul/wa9m2coh+jH3/aPxaxuZcV3mRTdROc3Yjlqfb7tz3C90+ZWnhwWTWjvjxZP1Dx6QpTckZN+17qKr3FMuNkF9NP27A7+8VneV89dVX7ytS/uVf/kW1bWDykN7hSJ7VM7n06R5EhDcQ+YxkrcVPUlh/HqfiZ7ffehsAvFc9o90515Cu3/LBcR6JrctxNFGQtFN0nPdBbwO4nqYc5loUK9GBflfXBXCLIBUPsV248PWhLWkPGYBFvqNfdA3AofMxVa25MVTA7K1+V8fkdrO3MmojZF5hYtv0Gqv/2fZspG8SY+U600d2UfsJO9nOYt5tu/PfL3T7lGVFBV1r1q7gR1/qmJS8Krsaa99w4vbkjg+3X+761j17V7f7ymerSPn5z3+uOrYbW6RjHMYb+qrv1vaepLwqY3FkNlG7wqn2m/Vx6QHgQG/G30vB+XEVJRilCHD0YqX//8B4mgJRgAC4fj32aKogYcWKH/M93Wirm3kM4OxTxSNjMO3Fj/RFUIoLep4k7uqZ3PNR1TNkNkwf2VQ2+qxtZRGfFhoQMdq5trJxTfpa+j19RnMStT+lXaSrzPFOOzzYm2lfBD5/Qt8/YjvWXuxYbFVZv1hlp3yJb6gKOb4U8tKPe+qZvPFXsVK/I2ecn/3sZ/jmN78Zk09sFSm/+MUvVNsGxQ5pppOQPM/e2g5ddOAznsfdkUX+K/15nN229FHJh+T0y9r3Urox0IuQ80xuDTgOHG3cBgfU05TTTv3tjgPu0xOlG+7AbxI+nno+ZF/qFQmLIXi6MmRjDJWCwlsLjAvEviL9RyOKg+m8zXHq+oUro4eA6ScsHvrF0h7XypeQUxm7lubC1+61lS1jLLYznpVF8dz1mbWXvOnGKm+mPfTZ3DE5afcPHsPUMdeF9Z72Be4nknt+qnEDDSp1hfl8RffVV1/hm9/85komKBcp8g+4AddGKTH0kU4iKz6qcqlj3Mw+40pZ1CfjMF50sDIfWb+VsQ+5jgEAsu+lAID8/gmAQxQoB3ma0hXXDSMPfHMNwC8ODkB+ryLKW5ZTVhjNm5X1KXj26Ur/8IuMxUaqWGwbOqaP7ouPgtdnFEuDKBQNjcqEr0xvOfRwI7ohDw8xK/N8jmsZd+E6a1d1Oz6z9o5fK6v6BdacevJofuiaMxwqs76TGJQuycGUReM45YsMG2MSuuvSjxto8G7RbB95Rf/VV1/hd37nd1y9RLlI+fnPf67aNoDoYPTg8Ya8UlRIXeYj8ntHVu3DyqSfKv9Oe0D3CwDyQAdGcQLIpymd1/8/FvLZbueyP3SxArTruyjHFcPRDjTxdGUe/vZJiygOjuO6tpAFiW1bXReKfmXbiWnhiXanCRnW/m3cNCYhrxQn3g3v+R46IPZ7F16fTC4PbKpzeHJzZRut51fGQH02cd0v5rWK38wja/ePxq9lHIXrHV3U3vHJZNUYqvFU2u7cX4JV3pI2yHhZH45vT3Y12yrz7gvGjfpH4MuR07EZudISOQB47rvOV0Y6y/nqq68S5oVykfLjH/94XntFAtPbwL3NsbXad0ukfOI84KZ8HHiSW5WBb+7Hsf7E5/EyWXTIevydtpRpHqD/68RXe9CvggVQT0/6iX2+0unGqkBp/fsow3w8TQHQv4sivpfS9X4xwA5eeaBHeVB2Y34bum/TnnNPihXbHnYAdNxj3cnr0X0Qn7yO7pFlrQNXPEQfFS0SrO+dwsXrI+rbbsoup5l2v6B6gPcpZUsR0S+4rgmO5WVtJ0aWaxtzVZe1q36ynNl25dqThX5trkxeF/mpyw70JS45N0Zeme9LzeVAMRfEPo1Jqtj9xca20E4tkQOAf9u2QHcyons+0P3TP/1T6WlKuUiRyDY2G1i1aPH8RjadcE3QcRxr23CWw0vKIPojMul3yHhB4Mve1fZkQ95F8if30Qbsf1TwrDtwJgFHTxbmd1PamYmjFyvA0QuUNh7hd984+gdOV10UFwNyfK3pwmTAylh7mV/yVITGZNrKbthCy9XTFTMOYI3vFsZ6lOOScgC/bL+c17v97fIBbhNt5Eo/OHKNYLVvfcBab3xnB0TkY1zTfittKZN9kmsbp8fP2u/QMdmTvmx7mZ9+scqEXMlQiKGtNuH8FeZYoroWGdf6XuKE76sr/bGNRrsuDbpgde/JBSPZJzL94FR4QLFI+fGPf4zW1icdwBqQx/F+Shv2Vi/9ejp5iCmd2LSnHyGbk8tkEP3ZRUD80sNR6COZHfvd9oB3mFvb6xoAZPFyLc75REV9IfbkifbRGtpxTDlwzCcT3bzzGtanKX0KeDEg45RzPK6jXCx5kL7nsM44SQwA+BOf05eykf2N9dHWtZTNpYS79oXfrlz76zTBeTOijYYdPIvO6qfJZeseYMZvJluu+8WWzm1LvshJ5fojdBmXye7EztoZJ83nOqmLbOmTcDxZ/9B9Ttk6FCoP7wM7dq+vq7HGmena/EdrSUNQtdwdQgt0JyMjEM4PfvAD/O7v/q7DvlAqUgZsJzsbLBtEpPd0TK5szWFHN/JIJv0JWVdc/J3Dh8Xfmv+9FMuP2tbOzoln268BgL/qgfp14rN9upJFSTsrm0PIr5SaQsAUJ91X03Nx5jwbM5Mv+bPzfIY3CgwZAwBdyAje8DU4gPDXG70vsu6ycbA5m3EDdNzLuAKwezRDZcNhYJvvoiP6MReMIw+E6kFCDwXiT7at7932lA2xiMG73tHtcD0dm9eK7M5YWNvKonmabU1IZXTtWjuvj2ZkjMfcF3I45WaMU3Y11jHC99epxKLpC9PUOsd1rg/iKuorKBUpP/rRj7YKEqZnnKHPbHeKHTnJx2EOKJBDqyKbHZHDwxxGXqExIHmejceXbc8uyjnvG5BfnB2yPvYDV7Ey2gDaWZTIf0WxMpK4FCgzZfrJRbsUy5MLr0iL8kd9nW1AzHPD/JQxLTFbDlaZ1YUFi+h7kWPNwUSmfzOqG064oUuhumyLXvU3Xa6+6cZvYrWc0ZZy63u3PWVDLGJY4inqIi6bj0zv6XZ8ZbY7vgCds9nuF7qtjZScjtVwqL+g3ylz0lgZ99QRP+k4bfxK52ja/OfSK6LMGQwi3cWJtoHyHnHyKk9T0iJl/FaP7Tz6iZ3pLccrPCI776fCaT82cYhDS2zswDnpm7LpUy6aY5WlP9kTmXcIR/wBK8v6HnLdNwCcr3rQh5y96gGO8wuy9mnKJe/m3W7coNGTC/Y0BYjHOOR07dm5Kr7umW1RVC2c076rLrulL6c9c0FinD4lWJ9SZ+gsf+9CuIlLheH4m6/QNe5j5zBRh6PgeNdPtAHTb+F6R5e1PR1bCzt+bXuHy2Q0j/1ilQm5lGV9dMH4iH1lc+rJvXuMxnZjjEMe3TPDUDHaciGplg0+DJlrot3YXxj3yy+/fL1I8f6ErexwpyCx+qjYyQqhTro2ZDXBdmMfB+N5OOzIFp/ygGEHwiljY7Syu+2I4/Es97oeC/DoQ3Zf9YgipJ1jPAC0UaC0mbPo6cm0HfkTh/hSYMDGeo3ZK1DsPMi5uuJu+hqrbvoMYgdwFTzj+hp0/DRHYPrUwv7hFScA8EtxDTPeDwTdvEFe43TFZcMg47djsbbW9cbBuFz3C7+d9GU5ql/nekf3FDfLEZPd7bfUJnPpzsdF0DLbDmT9Q9tel3ksU17MI4BlbUzZ1ajJptzmsKBvqtWvlnCNHR8OgBbo/DxYVH4VOS1S5J/CZ8UGgLJeIvrJeCDSXSQxieNQOuX9o62HA9v8vQNhyM/NX/m0BwKR2YM0Kz6ydpVTse2Xh1hsI1fAeJWj2vNgP+1Eu5300Ye8KWUhsBSN5mnKjHV0bwoUb/EvYz2Eb9EGoIuQOcwDfep03JOPizfXi2zD6KDHptoSp06JBb+rhJLxR/yWO0yc+9JDdYOx8DZ4FpPksU043KyN/8U8OTykjbXfbicHbvVwTw/yB7iZXUW24y9rA05++4VuB7J0/Zyy/qH9e7IpX0NOc5TJqzGUxqX0Jt/q4tLpJhvLIgl0grW5bwz+V199hV/5lV9xeWmRIp+k2CDs5pfpJSS38gSA6VozXzqUkzg2+n7ywB4WAK7DR8oEz5N7T1KYzMbIxjCupT4qPCIb2R/LpeYCcwGOmNspkU9T+kX+NMX20Z2iKe6pM3llT1OUL1OgRMXLsLdzPttNzA/Wp0DAGSvjOwUL8y91oy/RAfWzyCL+VJHi5wXsbjYW7GBZ5BKM07ifUGb9mO6kTB22hvtqGzD+nevdduQn0+/YZpxde8pP5me2+8V1LfnWL+NZmeN/VwbwcUVypkvX+ClnMhnQ0qPRT3EoV5JAJ1jFvSLiffnll68VKcvm7+gq+oyX2bPDXnHGQQvoCbcbvDloANCCxZPbV0JzAR2rjB6gJ1ojB3tQnFie9cty4hUsug2AvqYArqcna7sPtcn1fPkceW5r233iAD9fLD/senLFXABiztiTHBOn1C/xyvEY2bimOgnBA8T6AZGJtTv07fwfs584hK/iRrKDbL0CJK6ZUj8e5acZLrO3MqVqqm1lVr8cIG9s3+Vmdlb2ii2TRf529cA6b5X5tuuHrm/LC/wruXFF15BzP1XGO+WFcftycgc1RXBUNm8Ly9EpTaI/WRnhRIUXFik//OEPVVs6tAWF1XuciJfZswEpTjunT4jkQYXzUJ1FyDhkT1tWsDD5ztOVGfMpszkc7SwHHq9qF9sCkHE3MlbWHrk5cyD9jptbFjOuL9F3JT/RwdjJWF71jFjmnA1TocNx+hR6W9QymVeAeU/nFK87VP6ZjBUkaqs65OU5h8rhe6AOpdGf6XaJY9J4fMu82rFYe6Vqa/82xg3+nbaVRfyqLuuz6qfSzmQZP9MDzjz0C90+ZWytsHXSP7StJ1NyK1u7K62VTG51pXuGjWHKbV4N6FxQJqGKOP3hhGO1YNzvf//7+L3f+z3C7rj9JMV2VilaBrLiIzpgLSbnGB+HXnCk4GBPUnBci0A+SWHy6DXRckAQGSsWshxU2wMsd1a2cEaM8oCNipWRmzFUNq5TTw92J2dRfrxcqTyIcQBk3s7+cfQ+ZJEx9AAWuSpWCUeOkRVJyoejm3EzvpBP24FGfEuqc/8AWPL5BEqbr5SzGJrhk3b/EHM3VHRzbvQaWH0s+sSfbWf8HVtPl/Uh2zvcHc7deJTM5j6ac9T66cLV13XZuMy4YTJgI4ZNuRvX1VAXykNbJAqN6NvqINArTaDT8MZfxe0nKYDe+CKdheR6xU1WyAxM3pzbpjZvWnA0cUiJRbHIpBxYDmwlAzkcjWz6OccSFRoZx2sPRL6mzMY02m0dq1ecjAJhKXrQD1x7sLNcygP7QPw0ha0duV6m/sDsTx7wrNAYOglZYHUKL26XAsX2CWgfYqxUZ+MkfiaE7eRu4NXNI8MST5OXq47Gb+VzCppqT1nQBtYxP962MQj9bjyVa9a2soyf2TNZ5J/JKIfNV7/Q7aEv9NOFxpb5s/3aeSnM1ZNyN4arscqE3MYPQUQAACAASURBVBo3/c+CluoWaaATrIwgILnf//738fu///uUFxYpw4lXcMhOtosKh1c5dCUmTxy4am7JU48pb8JGHLyTD3EgC3v6JMUUK0zmFSsAwgO40s7sKFccjEuMztMH9RRBxNzaVZAsuTyE/enftlX/wywpUNwbQsZv+7OvbkhxhUPkb7TFeFjBMtcIGePAlJ920z+wxCXMLhmBKny0YuqBde7vILun2UY75aswlC/jmulpYXvKjOvs0HyyvehMPHd97djZdsa9w8n0lTawzmF2OLtrueW2yzphMuM+unfc8RCTKteN62rYCyPai/fSqVagk3Lfn0SVx+AWKdFv9QBQh5/leAWF5QGxH6m3/lur/2bPpGy8+umidsmPyz/7TktYrHQnU6baJ9j4xrXUe/kYiHiMexw6JgDX040D6/hl28Z8DbjLRn5lCAeWAoI9TQH0WLz8yPYcGxkPgKXAApwxmHhleynUIAotkremjVdfgr+DmSPrf1w2on8TloPIrINITuNrlzw8dKwf25+Iq3JAPNlO48n0QeyvtGkeEnsry/SVNuDkr1/o9tATH92FTSSX9Q/dx6Um80FkgBOHI9/xEd4fit60iOgWiRvzwnR0ShPoTkZGMPjyyy9dnVukZH9kJTv8GFjxYg8JT8/8q37E4aYWJNm4L1pfQLYIGR/0cAb4a5/RVzOHz/DTLo5qn/AKDTt+lq9MFnFn+4A+zIHlcPeeKuAwfqO8tUmafYw8qIJp0IoFioLwDVzjUWPYzKM3dvUEZExhEzojn76g4xpg8Uksxcm1bHSuoe1pnt4I1b+6LMglZorWXO0c9B6f8rK28SPbGddyor7SODbaGfcpzm4bwDK3bI1ITrRWQlshU3I7P8mcZVwgGCfjsv5MbN4YmKDpfxZcoWX6KXHkgrG5t1j+F1984TCTJymsY1ZIALrTCofxIn0aSzsnUojk04x5wJzcqTcHDyAOqFPODhWvEBk82j5t1aF8YowvG7PksJx7OVTy44y/tXmNdo2PHu7kKYOUzfGJfHpF3Ry/yOGMRyAqSJYi4hDjcV71AAifptD5wLpG3IJFjksWZDJnYsxSzuysT0DMyYCMCVduLXY3kafADoIlxkjH9EHbytwDx+Q/87vTZro5lx4nOMyzg/4u91XZy/2yHPYL3T5ldm20xv/qtGfvyaY8aFtUxuPJI9/ZepZSdaX0Nk+rbNXPVqKX8iBBAlXel19+iV/91V9d5NtPUliHWbFR5d3Wz/Px0IuBvN6RfDn59oAaB9Hk4Tr8xgFlC5Gu6rLWO9Rt6L7k+CKZlLOD2uolqFzGx15RbD55sDZMthR18gkKxHUwpigHY8NSuT6w9TSFrTe7QVDZGGvT18oX1jiU7lxTUt4gvhAMbTfXsuBKkdU/DW8fcDfZfsHll6Cszzb+7JCc7cxnhdOca2E72lGcyp4dgsGYMn6Wj7scJtvu18nVkNl14PonXM+nklmTwhiVzsypJwN8P25eFrEYCdHNK59k9CuHh8h8E1akDNBawxdffLFXpHibEAPb3DMe49zWj7UmihJVsByD1gX2tQ9w+VaHQhOb/bHa0++fsKcmhz40ZF+tkd+MKRYxEp4+lMv4klc7o5BQBQLhDCg/ow3Rj8hLa+ZagOXG5m/ByLcY3xKLMHMLlGxO7PidAmZygKkb8i66bOy6X/obcvtEBVduAdHfB2LEyjZ/70BQukA/C1nr0/DdA8zhM/krbarrF65ssYnGQNb7Dj+zr3C8PWgnDiDPlV0XbE3TWBx7T6bkyl3D6l54MDpvjbtrgKeR6ny+zPkqW3WcE+md6T51gdLBrg0tUn7wgx8wMd207/LkQfOKfh5IgF4EsmARmzc7MLr4PExGv+RwqRy4fS2Z2KQM64HXGvmLqYJXkdmJLxctRx8HfdUzKOPwhenzvHFmXs48KD9DdvJUbuQXZg1snKxt19nMo50D8jSlq/icy36kbwlWkFgccJ6qFGwl7LrrDaIvOPTWxdNwD7IRo9N9ttFnG/hyOCZ8JesX99sZd8CzIdesDZBxBm13LhJO1keFV/HB5pzmc+i8tduSXO/IFjfrHGS6rbW35Vvml8szHecAvm/N2d0+KvvNP/7jP+IP/uAPFnn+JOW4NkGqPzkS7KnB4Flfu/qRw3lYN7GwpL0wowWLibnh/Iuox9VGE/6Ok9MvOid6xdOdXLHBPyCyn9p3ipVIJuUzzob1VQVwjf3Q8bKDnb1WG7kAkBZztrDwCpBquwvXeVHzCagCghUOdPxkDiVvjL3qb+qitTGcLEMUedUKrS9sEBZ3bCyizTfTe2NWeqHLDsOF7/invGLb+mTteW9IjjOOtG8yR2keknaF462NiEf7MeOZsn5xXbP2EHvrlPFlzkV7yqirBtuFjYvqmLzU36lfxnV6Xmxkjn0d11c5AMuDh2xsHry5pEWK+j6KnGyz+UmObl58xc18FfTz8hyQOoQ9e2lHvhMweOrQGgfKKVieDBCZPXwBHR+Nmci9ticb8gpvifPALM7G4lJjF+by4J0HoHmtM2S2mLOFm81LlKeKfrRbu8ak1qF9QnQAl1o/0QnH33IeDmd+LE/6MH7VZqeXy5V7FZy4bER/wt3UH0DkO9q4Ul2/4PrgIKQHQ7/YkkXtHa5sU3m7PgeyNkDGzQqChPOUTcaj/RRzJgxWmSdnPpx+FiaT026Zn3xcC5en09F1AZ8CmW9f53OA2D+ueRT7aBXRWL/44gv8n//zf5SMFilfftV/Z9krRhrasnF6fMuVh1X/EION9BKH2KhlFg/Hnmzg0mby2nrwqMMYZ3v4Zk9ShtuNAmPovMOXyaqFzpDNg97MyXzVM6dhfUWx9D04gD78B58UCKqN/EmIzUclF8sYAd3/gWtczcztaIu59/q7FFA8Jkvn3PYl829iUcWJnn49niWoj8OYA+8AkzwqN/nIdMuByDhGRtvaQMtJm147bWs71gj1T65ZGyBjT9pPcNx5S/xQfTKmMI+ErxUrl/poRrK4a7Bd2Hmr6CrrMpMDwXhPA66W88D0NQ7t2/U31H6uNDqhXKSoyRSboSpCvOSazVMe6gD0YUb8MR+MKxfaPLClfBzCQf/D5rjIc4EsxYnz1GSRDbfBoWrlQ7dTnHi+ItupO6CLizFeMX7pY/ZtOKxYAdYc0Tbiscjx2jFFbYmlKJvD13OrxiI555BUf0Ru51Fyl41S8JlflX85DyLXTNdFPA8ebKE74G+ENWSHU0UX6dnGZ7l2HdN2v9DtixDzWqxTbYdveXMMjr8ps6HasSftpzgVGyuj+iRvTOat9cV/xacyade/Rr7KSByqm9U/71PomDy8Txp89TmWRd+gNkTKubiebu7jdp+LwjXI9gCAFClfffUVGvTj+YGGNjdoC8bvzctmKRiIP8tR3E64eEPXLp2Nw/bBnqTIhSMPC1WIOE9NaIEk5bjis4dCdvgyWzupleLkUpj4z3W6HNC2eBI5mTkC9HdZ7PyIpyf26UYU85B7HC8fsr3YHqBF1BXyoYs1wC9YsObJnRM4PuSYTG4Z3GIHoh+tmHpvE4iKuwru2EY2mb87B6TNaeXQWHLZjKxpG1d3tvtH0IeUZXwbtw01yVEpZwHHm6OKnPo1YyjnScLmPJK7+TRM01hDb9LU04Rjy+RTx1MLHleXA0h1x+HZd56nC++hAF5eLL744qcA/h8lW4qU8edppVNZENAODj9QdtAz3Smgflj/indcvqZcbNQqP9GTlFNf/v4J4B9Q5nBlXKbL2lLmydnBvjxVANanKc5P+PR1kLUffJInVSzgSGO2YDlhY1wNybo45XLeVbFlnq5I/WV+AIczn9AFhVeERL4bxA8JEHMm5mDKL8PrMvhOykBWFGR4xT6z3dXb3NJ2v4jbQpbZZT6y9nVZ8Om0pyxqs+KgINttezIr3ypWeoPKvLVNY6D5Nx5Ioyk5k/XG0iMbizMOC5sLpQvviwZfvep0uxGZ0G7c60s2QtO2XP30p+tfng1f98ymPdgFlkLjUgDQQaunGMc6oPHTtypKcPKUqdb3eW3XoXTKqK19koJrfOpAEwec9EMPPaBcnMgCg+nkQezZ2kVT4bZ25YH9Sm52uLL2zEn2qgfQRdLogxQX4RMRYxPqz7jUPNnxj7UxxsOepnTiaa5zMGXCv9Idh2pLPvWNKz/tUiw8u6aHnhYvnwiVjS3jVA69KTN5ZrKZl5a0A5m0cXWsXZGZ6/4RxCTb2dgLRUXGyfSZPJPZcTFZKaee3MqUul3/MrnHXfh+H+H4ClyLe0WLFkYu3LkNg/JVXZ2Py2J9kvLVlyqInSJEqaPXKgDQxAZvfFmfNgalP4SfJnRGvtjOri/frQfV5U0fBrSAEbAHZyYb8PhRwaGejgAhV8nHOOWTEJn7JuxHuw9Wt42PZT7sqx7EMd7JgcVS3Iy5AtScAus8Txn6+MrFySH6EHzVFstEFRgqZUQ+7CzPxDbkXcRzk8EWzgxZQeGhahfxssNNycUczXa/iNunjOUwOsyXOKyPrG1lTlxKRvhTb11HsTryLN+ZPpMv/Zm4w7F7MnS/9oetwef3qWG25QLNyFaKc9dV4ybGu/eC1B2HjFlpTw7TXRxPn8XMQDMTJeuE/fLsWqR8cf7XCOXhReD9lswAWyiAOZCuWVNYCgD2mmgqdV/Tv5SPAwniSY1cMEIv5epgP3n2CcFA5TDe5WftrK/l8B/jbOKAFaGxwmBwWHECmLx0gZLZsdM+Ak41T/TmHcNv19wPuVewLN9FAVKZhFybpSczEDFIf4YzeQ0630NuYf0RZIXfQKavoOoj24RLMrOu2T5jZTKHNIZ2cRZ90/ZL+46Njaugl5D9LUWBk+OMV87/TVk4T6ecnStq7uR107ZWL+VQPla5K1MXvbGMlPXNxriE1haZxTpHC4PIunxeOX1k/dN9ZyUtAtfqVPz0pz+Ni5Th4m4R0qlj18eCebBYpWhK37JwWPSzG7Fht0snD05p19C0rdQL+TjYlwP4hPcEwMqs3NN5B/NOseP1j+Oa0+w7FotPHHFxwvLi5CoaU1Z8eDbM54hhQK4Z9fTnAPpQxNMfiDzh0luZxKK3nONqL8XJyaUx6InqH/bpldSJtZrBO6wy3LUD/Ln1eFUdlfVFSNvZYbe0h1j0sx4QN3zaeDIbwr9UerzAZrxFXjX/nrw8V/1ilZ3ydA6HmMXW5j+XhaKdOqIUplOy9DDDL8SYjNsiu/9ifUOkTn17sYv9zYLNiZswAlWkjC/NAnEioyKkU3mix2GoOJfRxZFi8n0Yr/iYentImjijwkTK2WEL+IelJ7PySFd9ipDZXsJrXOzQ7ap25V/2Pw5K+cVSmS972J82UV68gosVJJU8SE54g8k8mDEAl0y95hN5YjKJymuYqDiRPHstuYtsNAtfln03WuOvIBl++ctflrjVQ87T273IbQcyNS+2b6NnnKydcpzYp8yGJMd/o28mq3A8+c780vFEc4bAv52bNv/RHtpyIagylxAwfpzYQh2Ts7H76eucjfvhDieKb+jpD04XoSoEAPzf//s9/OEf/uFsL0VKa+KLq+teDEAELfqxhyeDOgylc3EpByqLBgn12yTswGjtOpQAPvFEb+X2kJz2YkIrB+iQeZu4LViqPj2dirdd4+of5qCU83Hgmv/jmgv3i6ZDf1zzpGTgOZDtAY/n2WR+F5t2xYYD66F+yuYaIK+D7LiH3dD1phiTsW24civ57s1t+sVsirHJ+XwAabGX4KUDaoPryTyd3ezDg6+ZNvJYK/Fl7UVm47Cx2vEYd9LXdt+OzMt5lefpsvlRskuQztMptJanfP5z6dcLNCYz3MX/DH+NeZEn42bI7tFX9JUYlrxXxhmB5HiA/nYPC3Jurg7YoKPChU2SLTjc76KwSe0ExVkS5OkDO7Zps8M1OnClLNIxeJzKAd8F50fwpVEcp7ydh6bzXQpZNLbjKmajHEQyb0yS59l4hR3jLDZjjtm8H1i/NC1/e2m8KhuicwhLsSD0S4HRRGySP9LB+hVrcsAtcKSvBPYeZev0Cez4y7jVA5Ee3EZm96Hw0GvExnIKbSuj8ctYbL82/qh9I7Yqr8LJdIsPb4xCxg7EkuyUD0dTu14IGpNdF6qHk0BH6sTYP9RgF2T3Q4WT6nuAsX4VunCyMJT2IoQqUv7x+//o8eggDgCIChF7CAGd3xrOE0LzTQf2ezH2AFieopiFsBRJQq90nhxYDsAhs1w5Vk++Y8MO8qqtkssbwRx+U9bEIStf7bBfURY+ooUYxe/lxHJlnj0dazN7wPR7kDFImciLWneDLnLWm4Jj9LaPoZcy9RtR0asbZi/ko5Bk65Yh27wi3LHdsakebJ5s6tBUvsJDz8oan4elP8sjdsuBnLSZz/5B4remwlclX9VcZ+1M5/bDxmDGqWSnvDQ3J5eyZZ4Md6XEXOX7jI3+IMHiZmP0U9vVhXtpd34WTiXOCCR3FXzve9/DH/3RHwEwRYra+AFEBQgw5qduo/kNaHqjhzGVSVC8OYdi4IfhYJ2EnUN+h1uV79hkcUhdSX5gLU4gZLYg8Z6meL/VA507Nk42xohr7artKTvjozlvYv2McQxZkKux8UzddHxxBiL90I1CUnLpze/5d/wC67p4J7w5iVDhAJzn2brynuRV1i90G8YP0UtdeHBGbaurymQ8SmzaJheVPFbyGs1bxT7iAc64rsYqO+WrrEkTxR3SqWuqdVFt3ISrGKbP9H5k42E0slcyvKy/Aso5nr54Xy9w7Pgfc8OYB210AKgXIXP/PBvjcGjKh52c5ekIgH5+2FgMr/HkVYoH95AT2CoIArmns31nfqXOK4SUvMF9bTP0siCxxQstTkjOWdHBxjlkEVei4lfZHqBPSlS4bBzW7sBSACw+sXKq+ob1jxcqiBgHX6udfgtg+a5shBGYbeYv0w/s+PY2dfcAlPl1cl2WM17TbRWX0VGZ08eURW2bg0Ies3ZFV+knkttxTFm/0O2h9+IUcsVoWtL0P7FsNtoqOwX0vmTyZJzAXu6q+swWcMbQFbE+QqHfAfok5QDAipE+T5dzxfD4s9GW62P8q85S6f8YwgXZl2cnb/RVOMilzOrZZm7llSLHs7Gyit9ybOygM4cnAFWwzJS2bmttlsPS9FkZV8U280tzcOgYZ/7aur5U+zgujsjZchOOPATFQ1pcODFdhKD/Uw8ATOXB3gPyN2wGZB6ze2AXmX2m9zie3Rif1dNDvV/oXLO5Y3ZCZ7lu21s3GcfKbDyybcddyF3WznSvyIB1DFPWL1bZKfcOSjd+uc7VhZCbtqYQe2D6Zb3SWIIxecjuk3DOSC5DXm/4ugqW+8+BmoiLNYuUL768/mZ+n4NOmltYsQhZWMRuYE5nAy003C/OAu7ksgID0BOXyaONOpJ7fUS6qP9yEYLEZxM5YofnOHTNqwT1U/qB5WlA1GeWV09+p5BZeE3EDPKEBbkvW8AMW2DNg9TLwjrSexvJTvHSade89g++/gHeZ7bhRZyKLUPFrjX/8fZOPEPmHn5Cpu57pTA2RsbktG11jM9kLYnHxiLHUczfHZtMV/Hj2pI8v1KsYK4DXzebO7LZ8P27uZvD0WPQlOYELTjR3FTsB+dAyHVzO/StZS4u6OQt6n/4h3/AH/3R/wtAFClffvHlxRV72zQfGx8M7EZo1WLyFlshoQUJm7CuvDgG7GarFBhSLrFzwEZyT1c56Md1ZO/1N+XicFvySL5/ISdM2Q0/yPvcHa+UyTYretK8H1hf29jxE18sjgbyV4qnwZUP63vYT5C+LbxxXYS1D0DMidBFm9fTyOaHIeOwe9nTV+TAmZ9m2v1CXTO9RFUe+Q8Ljzs2NpbN/O3k8xXuzvyEsn6h20NP9g2hvC6B62C9/hFUMp5LucqEjo6yrbFmY2MIc5jdVySfp4KCjqTJyyAPVMFZbbnomEVKO/8HAOTvp2EUI2wy1q0WlB9M99nnPBWXxLCnKPawUM3kMIzkEhVbqYt8Rochk1vO+KyOQenAD2zgzONIPXmaouyCVz2AjnF3vFIW+Un9yjjFWGXcWb+27Y65BTqs45V6bzPJ7BUGNaFVsdW3A2lX8VHhDFhuZOvp7Ca9+LxujFA25aQbKV/6M768Q4vyHN1lmoytmL8qz9O9IgN4Xivzog5M63vey1rGIuhUk4NLcbW1cpUjyB2JmQXjrbGpT+4fb61QXgPsWUp5XKE4h3DkuqMKLby+kxLnaT4RuQTyMDMqQE3mimO5HENhT1C6pl0HKSuLjA07yKpyiYqtp6seUJVD3rOtyKXuOMyBLQ5xwOT5xkE/5Ko/h2PlVhb5cYsTGecB/jQFcb9DVp0/q4/sAN928LJNZ/AA6HlzeFk8Eu6hUYgpQ8VHxtmNL/IXFRKhrF/UuC1p9wvdZrKoTYZoxy3bO7mK/Fi8Yl+dJyXrFzpvFwH9oCTpsTE58qlz+aql+zl1q2xcLgNadU5K0nsks9edMQIRuc5cvTcviaBLhfj6TsoXX7iDsnXDAdAJ7crDdTMpS5LEBl74HoqbsBOVAsLKmZ5xsiJD6thBwHTRgRnF6x3qO8UDmsjnKVp+k6dw0AP5AS550Zgth/Fp33YsgyLGFY7DGVs2VxIVu6GrzLHkS1RzLNeDRGbvIZuHCio2GcfT78grhYUnAxyfram1V/HHDpWsGMnawBqfG28iq3AquorfUO7lrTdWGaBbwq8nv0ReDOofqCshl7LsgO+X61gs0nuCrAGluxohGsQT9IBbGdclSp6sEJv/+q//wq/92q9dRcpPv/ipIqhtzThoAGA2vtkKEzkOP7gdyNcNXdMUlz5FMWAHAtNVNu9KAeLZsEWVFTnZIcC41mfFt8I4nE+1zHn2NAWIx5TlKytY2GGuxnHGNWUibgD616nZuIQPb2x35jfTS1225hjHQ8V/hGhsFpYTzlOAV3iRrcs/ADnNVb/lYqWR3BjbsDAR8qwYWdrOnFiUx/yCPyav8jKdHDc9LFuXm6kWejs/XD51Lv9qWUu2LnRTTeSCcpHgcCL/pb4JosLE1U1K3KdVLEXKOgjMDX1ANe2kOUVLg7SzQZLNGO06NBRX6ANkG3z1EPE43gZcKVqsrlqw7NhHOutntuUCEwc2gOvP35NFWClOhizLY2bn+rCx24JkmJxDrRQsA6r4GTISx5AD+ZqKNuMq2Bof2PWfrXdPFqF6MDFk3NbMvFpdQYa2wXXkr3Bl2zto0mLEtAHj96H4WNuTRbpXZFPHcnA1VhmgW6fvpQc7XiLTuvkP1JW4sDKvkNLNSV6phXsoKwKyosZDZlcZmw9jTezcP+YGgCTxhNrIh9JfHE0yla2NiB+a/cPfmCV2DomsoGE8z97KW4t/G8eTZ7KMO5D5sYetW7CwvzdyIutjyDOZF8uQ2WJlYNocWAupM3YA4X/FGYCSDd6UD5x9VOYy0zFk/ExvERUyEhVfErt8i8w+03fS+GgAobtyxzeTv8rNZJWio8obft8dc5Xj6XbiG3K2f9AcrIJVpvTWJ5drMbG5DLWW9R/F7ISa3Q9hYZP0v3DirhS2fa/KMr4B9O+jqGQc6mOFHde5Icbbok3mWqLIXyuaRck0y0flbczVg4VxGC8rEuymwXReH69yJaqFz7IR2EOfHNDSFohzMfyz4oPZem22YdlCShYgM3bydIX91tIAK05mLhKwMUldNqeSG+kl6EYu8v0uZBtohF1b7xCPdJ+6WKHtc/1NmYnRO3Qi35VYInkpboMd/0x+h7fodOJWmcVpvzBkH/qfBVpF/Nk4orioqG3JKe9q+Dqiz7BVEF2KTbSZ45/85Cf44z/+416k/PSn+vsobizHPAM0vMkHcJ0a1layj0UkD8cqvIUfHeZsI8847KBhfe8UCQOVzTs7CAeyOL2iod8PJ+88wO0irI5NwvZTiaU154vAY22MWMcyY697xPSlr3sm0fi3cuT5nSYk/so8R8j6jOQRKn4t2P1Ssa1uvAOZz+oGn/XL+tnJcTjPjctZTFR22lXiifK19F8Yc4UT6SoxRzIgmWMtWGUWMlemreWLxNVJWVQwlPRRbr2xLWmI+9jlSeza7BZJ//Vf/wVA/p2U1nDtT2JXl+DrQ9gxzBk7rwj5sH9rhRyWCaKfGtlhYnUSlZ9i2Ua8W8zsFBuZj0jnxWm5imcPaXE4S9usKGLyim10gx6HiAvAKEbs6xwlw6pf/nKsCHspXGw+Etw57CObypqMEN0fEjsHiQfvz9FXkG18Ux+4/joUK1n7rizTe7Jq3FaW6e/Kd7ie3Fsr4f3ZiFaOV12wPheSbeZxNcw9y8Idv+Mz5F3CJCe+yqIShxfDLkYuzH+7Z15NWWVvY3n1N0VJPqZIu5D9FwKAP7lAfvBVDoDs4JUyayPllUOd2VR8R7qsyFlkcmEf66Ed9eHFZMeb2Xoy5f+MDTjjPW/++bRDfh/F/peeBV9uGvZVELCOf+i876lE63EgW3d3Ch2GuwVDBTuHytStN3wIxq9shG6xYmLL4qEHZGHcVbunfGXtSHfH/47sKXl0SC5rojnrZOqNts1/ItEUrLq2yNx4m9GzsQShTw5XxJwoJU48ESqFS4ZovPEXZwHYdVKsGcQCuwxW25WzMMhCrRYuA8PH2Kx3DoeMI+WR3+ohbHVSnxUakW4n/iVH7VqIkb8oj9JnFl9JdhYIMzZRTABYC5LjuglswSJ5/ZL4k3eQ7XsDH1F4ZOs7wk6RZXHLprjBuQUHF3JO423Fi2Jgh6YzZimv2llZhcNkWTvSZe0dWaTj/AbPjZtnsn72ChMxT0pOpV1iiMyOrbFKARDmkYw15XVBrHd4EaqxSFTGz/ANoCemHyJStR7Unavbeb0gFkEDqN/zwLg0sdOdzZAdCta+sql7nOjQ2Sk0rA3z5fmv+rkTz8DdYkfKIk41tilr56K3xYQpTqZstI/TuUjjfgAAIABJREFUTgyDFSeDXypODuGDxC6Rrd3qemL/BeOBrA8PXuFT9Ud5Ip8VRBtsZWOMOB9ZrFQ4r8gyjjdnVXnWjuQ7XMArTJj8nLHK3J+8vYJl/hOJpoDp2NqJ1lOq6xex3sM0dx24qNxrEllhtAO7TpzXPcDoJStC0v3rsF99tQaHSKbHMRgHU1LMAOuAgfUAiQ6DjGMP3tbqTwyszrOR8uohlvVdLWKGvDr+TJa1PdmQL7yxdrzi5JR1A3E9ReKpysmlRQtAv6dC5RvYWYvVg8ODV9QMVP1VeHKDVfm8CCnCIuJqUHic7UMkGGvlgPbsK7ZM9mo701XsXx3TqQFXOcUJk+mmp9FocWHS/AvNMU6sLFy7TnjZfUXHRUVeBwVeHMKCaDwRsrEO/OQnP+lFyve+9z2XZH1lRcsCtSgO9dEvbbCFDub8JwM9rg1SIjoImD7isEMk0tlCRuo8G6nzuJZfLXAy2ZDvjD+SeW1PVrI9ADRxGJriZD5Badefe2ZPVRZ7QP9q8nzidyj/o5iRay1bYx7vHfDy+hQyv959Wt0kS8XK0B+aZ4uVqMC5e4AwnZV59lK+00fUrvSVybP+7smrBQiTt+tf5sOKTh5fY8KXki8XTn9daHV3ChMgyOHqKOdYfXbPp2o+ph2kMQSYRYo+KCzNHk5Wf+E4DwLrRGzd6gOkRIH5qdbWGJWnJxPOIs2KEnagZAdnprOyqr/Kgc/4Ud9PySrcIY9i94qQAdf2pEVfnJWFiPyyrN042BdrlU/bz2WI5RXQiMHJk4fKuovwRCG0GzNQ50VwN9s5JUbf5KVqxBzmb3GtuUoXjNXqPG6Fd1eWtT0Z01Xj9+T+4VwtTHzZ9a8SwczsgiX2Nv9x/C0NGjsde79Y5U6AWUEQjmyamv9yvcPTIiosIYt5F2xtLV+ctZzjqPc+bZcJA0j1Y0qUQ5AF2CQPHPKSb9AMLBHR5pwdHlHRUykoPBsrH7pX+q4UEju21TFU/GW5Wmzn/dGutdCgipHBYV+WHU9Tpg/J9Xx2wmXfoOQHzidl8L/YahGN29NnazKCV8wAsY+K/6iYAHDllOmUqskGl2c6j+PZLK71elG6xv8a6tBFbSav+Ink7/IVyZic5jeYZyAoQqZcjE03Ly4M5tQ5nTeiMX5J9wZticcbbzV/i546i/VsTYcFjuD56unoJWTjZdj+7R6JYK9boRydm+51iWz0tAhJJstiZ3POfqLMColXdBWbO1zL3/XLbCtjyGwzXyH3LAzm9B/XWjjaMdeXKkKGDymzBUu/mOuOvQKyxUl317Ru2GysvQru2DyNSgxp0WKx0JtscLnRz/mXheWgtII/LwYrF76Ww7pwKDFOlNNKH5n/HXmZ1xf+ylvkMraV7cmb54OK/ZOAjsezi+I7tL4+fqFL7p1oPS56gsx/J3niuO8IpX43UXzdwzsux2OcHksS/A18oKFR2t0nKNGhAfBkVwqMp3SZ3PPzJDeKocqTsqwtZVY+dFNmC4Nh1q41IX/tmPoAZnFiN5SlOJF+RX/L0xQDbw48sHVZtbXw1vhdfxJ3fcgCwsoY4oPFsZ1T1laO0UlZJJ+6ZNjLAZ60d2SeTrZ3fO3IyzKTozhn5/wovRwLkfkXvJtm5lTI+8cyyapBulF90+W5mdfjONK15d4j3jgYlqHGPjPc3QM8eP7S1z0j4uRMj6GcHmiLr0t/iNZSgNC11gZ51cuDxIAlZLdwiQ5Uqd+xy2wq8le5FfusMGHy0b7T59DNdtNzz77gioZZhKB13hKD2RxU0SJ9SL8A/37KVI4P/jogWmfRjZ+tT4s7m4jto+IjOgQ8zEKPmjbZWGWanOvPfkp+FeVaA5rSFpnSm5yVD/iizNPJtme308fi3xk3k6+yM5u0Kxm3lq82jVxJQeO6ySErhfW5yE+d47iaQyajHNm5l3OGdunC76ZIJBTvPriLyp4ikb7uGfD82n0z775Bf83lUJdyUbbg+zCVAubKrVbu/IS5c6BEG3ylMLljkx30zEfWX6Uvprccr8B4os9OOtfBuDFHdw262GiX3AMrWqpPUyTkq6e5WWwe/N6cZXa7YGs76yPTD9zeHJu8NAST1wXN0UmfNn7m04thMW2LTOkrh9ELMiav2kbzWPJJxm5lPD9NXR0ALve2XyLzLzTzdOqOso2PZRCmOYkUr8zLkB/He56kZPfCLm+hkD396X2qtYbju9/9bvvud787hcfR53fzh7Y6HMeHuGpoaxFiIQ4kj5r6OLHzE2qFG3Hu6J6yeUXG5E/aZnmV+oV7jA8hJ+7k906mjI2B8Sq+CbJxVTl38A6/dzegUtFi4PbVEn+R3tM1eakahOofXDuH0x1Z1V/F1658q1jpF7RNGpd0itv1r5HRloiNex5KMvtqulVjQVRMVHNeuYdKcaxCpVc/UEXIwwnH/RS8vLive7w8vrzvKcfXYWCXmJfYYzXwF41VsMMMa3KizT1aYLaqtHKrs/14uoo/z1fWdyaLuHdsszaz9fSdBPpfNu6XurCwN5p9HMqevrBXPYtvmLUm1lk2LiBeUzt4wm80HxbZRhnB2rqPppvTT1EfjsOzVVPdFpnSMbnTZ/XAuiurcO7I3UIkydNq1/SVo5sSGstCCuVUpxQtDGOnIL0jn7IDQaBLlFLh6rK1varU5L2E1pz/ev0NfKO1phxm8PszipK/4NWPI06rQqwHyMRcb5cPNu7KwcLADu2qvGpjdR6iIsSTe+OOuNV+KnaerdWp9Tpu0lEYsO+mnDwAsxDpooZu2mW0iGG/tjxsJcQU2e+r3Jk/i931t4NKMVjxXbk3AYDRbIF5q2BBHqerZ77V8lnXkqa2RV7NZZVXlb3qz5NvFSu9EeTNxgwcR/+UuqYuiHwKAp3E6We11w3dr6WueZi6Yo4XGcuro6OcgHepXUdlZPeXxA7XQ2vtepKiDxnK30MlwOMw+fGTWH11A5yTYeiefXRIRjwP1UM702UHBzv4Ml8V/96B6vmwesaRMtaWsVfyYwsnHHCfplyUA6wQGfaKewhfTdgD7vekVHG0c9ef8PI0UF1/DFmBk/nO9BG2ciGpLbcN4wrsx3qj9m18GF2Tl6qhaU5MTG5lFY4nr/K2ZOxeGfJ+4cpWTmNNeQEZQr82Y2REqyMcnhmpMLO9OgMJJ1x/r84HQ3lNZgioleLoCVTHDDhfnM3sq0VMGkZr59Z/rAeL6SObhOyLtJ797mFQ3fCfLky6rmEkJosT8AsLK9uVe4WG1VuObFu7zJ7Z9GVzAO2c39PssL8+dpz6JkXXmgtjlMUNsKyr6MnK1AXzP1A9dAaydSiR+doFvZeKXWT3MUMWf6bvJN23smkkLqXWXE1b10Vr9T/0VpVVOJF8Sza2miFzxr9VrCiemId54c+hO05N8nVDfxynoq0c0yChXtpiLiNdtmazYuHxe7Bg68XsFvwPYf6dlI09L1pPHIHzuVysz7OdPkEZB42T5czeOxw9ZJORHfZWlx3Iq66dOuDaTeICYLQZZ8DrO/KRtaVdFktFLnXHueG0a6HQP7J2Cs7mMeVL0WJjlMUJmfKlOBFLRxVOWNdVtoY8RPP1JLx5yHCnAGFI+21JX47+tt82PoTO0Ow6GX09cXhVZBVOWSbHq4bMx8/k2rZZk0WnVMk8tU7i8tkw+SEyN77F9am35k6cT8w5AysKqT5DgebtewzV+DN4fsTrHqpXKJzhHKnzQ23yElHix2EQwT1EGDeNcz1wLNhhXJVnOqnvqqFvpw4YA1WHOXj/XkwZ37PPxpgVITvyKTtMUSCHMSmnH/tfRR66g8RobtLxxU73tU8T/WSLsoinipsMrJ+dTaqCck7mFAWvZAx/t2Cp+Owf6xxfl+tainK2c3BVD7KKnSevygA+LrcwETKePxOzagQ5cvRTEumG/jgUT+vXxhpuoyGm68nhhGuC5NfVa0UJ0dp+FZV87KD8d1KAaA21cULeRFNJsgeCUBgrHhAtQtScO3aFMWQT8M7CxOrHPTeKk2buKq9wyGSermJfKSwqBVFFfhyiOAGAAzjauna8L7/22kavPQs1nkP0ZX3BrKvj0nm59cY3EK21ylqtIlvTEei9tOEuKjBUXC3mXtPCOdEB7hZDnk8Vll4PUn5g9Rv1x7gZx5Mx+Y6t1UXjFA3CbVKlofyvsgjdNRnPvDBjB3A0M5NtuZAhK+La1b2CZXcOJLw5cHk+oYRqXO/C6P8b/eKBYKIBbW6oI8lsc8he36iDRInzGLxJ2TkQsoM103V5A+Dp59VMeRN31ihYpF2luJCoFB6ezNoMjM3Z2khbpqsUPbMgaGbtjBDkuvEKjVMdjVkuq53XPQDPR9RmiNbT1w3pRjmg0rtn4/KZPrCxc1wqSph8MbsE6sB3rndkWTvTlWVmXOH4jXyVmZgBgPbZ/zmOofbHprSer6lu6DeqyD8jqnnTcttFdh/uzovSX4mM9Vq4hayPp5CNNcL5nRSfsHE++ygG2LBu5itn9aUKkGhC7UFSRDXB2UG085TADmQUH5dZpG9Gtvbl9S91O8WJtWNjfy0fq3y2m1kXox6xv3Ej9qfw+yk4+AYg7Ox66k2hewDZeqogvZ9kHhNkRUEFYW6avCw6bePDj40VHal/j8P6szIvFGf+ygVDQbZ7KFbt7di83Oi8OFkWfTR1YWOBixYQLp9M30yf6oKEsRYmQC2XO/rUlqy3CNX7zKXc2GvehfR1TzVWcV68BHUo2ULC2UvthLgFiJrnvUgrGzmb2OqByzCKjM4BxgAu03HqesXJJevyvGDx5BWZ1x6y7NDdiWeBcE1/HVnIZ2HSSZBPUqbdqV5iNpsFfd0zu8nnWCLLj8eLUOm3womwdS+1Db6kjaWOwN7TR31m8QQ+5+Xm4eMWAje5FU4mr3JvFSuBTCZSNxvUpCfotmRc82JcrT5NGLPRjMy6z+6bl/U9aSl2CxiGal9PIhv/gClSakYMuj+yidb31Qm2qCtPQNjfsqjYRcgS6h0c+4WJ5ABjTmRhcpm2+bnqpV1cTEzLQiHCZB4nakv5QCVXbuGj7tN2FQrRf3gQwCxYhD17/aN0V0Ot0amb3fD8esjWGODn8euIrJjQomRMUm3n2oLpnTkRRDSc3yMJfIaHbzCEncLA02WFySv+IhlwjnEnr43IAIzNS2nactGvmv6t03Xf47hojNdId5on98+rLfX1vD2lB9acV7BzD1YQ7eGVMdzB/BVki+Pgc1z7IY4tTisQh4dQ2kPAgiV9KUBo93sJzA4Ui1rRIcZ5HjayiFg582q5QW14bR7GUl9/mgKs8UkZ490tYJ6ULzjDzP5U/pS3YXZMXli0SIXwp3QjBrMu09gFKkXvHeyua4u7m156/xl1yh9Q00FsGpE3ny9lNNfMlsXgpSmYv+rhJ2VuUbEhL8vM2HYKk0Xa5j+Xbr2gZ5AHd8xdSXWXXkuaaQOri50cb+l7IrfgrccdZHF5uGvHIM+Nce2+7vH6DePZ2v+8BaWTXXkC8imenEhEG3922DZzh1QLk9Zsn3tPU7rc/57ITiESyRjHs70rvwq+Y6ZSFif0uym9cRUtR5u246fpUZzQooX5G3r791oSsPWTrb/M5l1FjodwrEmXXhHBeOH3fpq8nAthlUm0wjwxjlxnou3B5j2ah6xoyPSRLNJ5fLv+2YFo8+P2PfY9JdMS0zRIEn2i+wjGP/9RF8ueu7qwBUyc5yon01vsFDL0vinavordcQ1Iu29oJ/ccTiwHJ4GkeN3Jw5iQvg5PTiSyifAO20sPXEXEZArdKWk6ecfR+YMjn6awgkX20/mjD19WKUSYHZPZsT8hl4XQlJ8heH/cLftuypDR4kTaDAzb2VRGvegh+Zn8jRvZy41Fpgd07t6B9B5s8rLGZbyoyHlrsZL0Y7FTGHg6Kcv0d+UuN8ull0Mmb/OfS2MuGuRudWENL5m3wQhzPVmGxmT783aHA9R5A946TNc29vv6KLivexjyczzzc+DKoc9d/qy5UnLbj3pycqeYYb7XwuTirAXGAH9Hy4qTVcZe/Qx5O9vioHVkdvxWVvUl5R6/Il9ye4AWJ4dce8XvpgCmf6OPnqjI76fI9VpdZwNRziqI1mvFF51zdu8mrtz7PbCrbKyWwooIr4iJYgr7tvZeDJ57kvedQy9rR/IdLnCOJRmfzZU7ltb/UdqmL5qSyctgPhxk67vZvt32JbeyrI8nORLjvqzaNbR1v6qZvh3ZGNLf7pEo5kNt1ho1B2ER4q7/mm/gXqExkCWUYSwmfeACYzCyKLl0TA+sr3mAQ7zu2itOBk8f+NWnIRU7ajuKBgHmI7Jh/rviXAuSL2QA8i/TDhzrfKsYzGvG3f/IYGUdeuutYgvcW68WVR/Z4czgFRAeBn+8kjPKldtM22KGHHTcuH7JS+SC5NCTeYePlO0UG49wTS6n7GrUZAlXaYJ8Dl4V3Z+Xh8kQ7dmiZjs53dEz3Okrna8i7sT7NLaKlDKeGpc6e1and5+eVBNfPQgyjP6ug3ho8qLkKiYujg2r67vwKljsa56B9fWPV4hkT0M8O4835U3PZ1bcdIWw8QqWqDDBMdelLC7oq5+B6dYpTJrRSXsTI0O2Dqu5roCt5V0fFZQ3wiXVjp0r1oqdw5HqTn0av+R4YwhcVAoDrxip2EbyR7hkjDJn7pqyuW3o96adK2WezAUA3l1uBwzbJq6vtpZ1ue2rcv9UOAM73IE7NsB9u0+Brdc9A3tnt7OJJ5CHigd2KNixvFJo7OdFHCDBIWVviPtFybjTMYsTqRt27LssVz8jBr9Yqcq8YkPmguVGFhn9gxzE0qata2kpfga/DZN2+XeepHQz8aXZ0w87AGeMwu/A6HdrvReLCG9NZut8dy1LtFZ45bPhvnKYK54WXhi3wEJpi5zN4SIX+mzulnyy/gIXO3Nrda8WGzv2QD2fdl6j+Zs+G8w8nlZx+iuEBTwXgPRl995Vtp+/XY6HHdsd7i6Yb/cJ+AO49SSl3P8BiFW5BXfz99D4TfFKsrKN30L15cSzulyLEsvr+ktwyLyqG+k49UM2bKRP/kVaeRBFRcfOT/eTK3NxYP73dUa7fxxiqTQtZz7MWljiY3ziv1/OzqaN3HDZunN9SFtg9s3yJ3FnnbpF4RsQHmBXo4y7RU7Yn1Jd86cpvF+vKHHz6tkF46gWDFWZJ39FFsrR/Hw2J4dsToTcL1Z4fzFq5LH/rbJLzvZktb0H99vde/F/ih3Dk74sbhUpZbwat3dDiH0+e6T+CqLELwcEOTgZVpeXQBcm2pf+3gkMDlW4VH/LZ213+7tPTdxqWuamnfMYFA6L3PNhIJ8GKZum/QAIn6Zc5ofWWzTBsf6dWLObOcq9RdWXRWb3FLJDS4uN4kaIrDDxipootqhgGU/arM3V5GtJcYoFw04R8YrM0419LRujW3xYsPxLWVv9cNQXRzzeeUVkl9zKmMude2qHa3HX9q7dU2D9Vx8CfKO1dmsAvQPPThwAGwvKwj302WJ/AdVkSSw5ayYW4jIrYrrPweG/yTP0x9FlozjR+tpv+axtfUBWn5p4T1KyIiEsTJLDfvoWWOI2/VZe/0iEX6odHOEHuHxV1uWrr3iAeO3eua8Z7Fy/6rdqf7dwaX3iV9nV4HKjZ7rhuxIbi0PpN+a6yn1FRnUyF15OvXwlfE825UHuOBq5smoRZbPMY7Z1etbCJFvDmZ7hjo3Eq/YePrXf209S4g5qnWewB1u/9Dflu8iSRZ8QkENSk5hoFa5njLjRGiAHr5+WQH0C9mnKsLUFy/53UrKnJqxg6YpzzLLgGHEfLS5MiHxgKXyGPHoKIfnHGgtFu+bY5VieWbPRGsnWXQS3MHwz6IHXk7sFr2jIsGPnxRUdpm5xSdbbkF+Xc9G6eLUI8eQVWYWTys0YwyJDC1Yds2Epbm3+UBajkSutXtePtGFxjQa/3+7cf7s2ffx8v93BXbtPjdtFyoeCLfCbeOSpCbAu+MKhxJCtG/81Ty84ZHHiFyw9pu7L/05K5+y/9pE3kcqVLQbQrjyZJylDZnlSPjD03pMUgMQu50fO3ZlG90kJ+WIt5cmx2TEnsE8nKmvU23Aqthme3swqh/cOz2LYzVcxxj4qbLzCw5s3NzfMbzCOanFQ5UXyV2Sezo7Py3FW2E0Oo4k+xyWNW66baPk3E03TF0x3WTT1sYPK/ZRxMv1AlfckdveuXdz67Z6PxNODvjvWNA67qEcNYUEO1wvkBpyiUWhYLi9OukwWK/l3UoCen2pxItuyGFhe0bDD+zz86XdDAjlACg2pI8VJ6YmN+LP4anqanq/KE5UlLrEWKq947qzRj3qy8qr/XfvssJcYeQ8PW+tMrguGSO+swaWLVvvbJ6xtUeVX+vJkntwtTJaUKtKC0I7kzqK1RvdXZW/m7TgNpEmWa29JTHW7/4Rjhwvovu7YSqRnGfb7GLhrF+Fr/yRld9CVCbgDFYc85Dx4YTd7q1yIQ+82PB1+cTLaQP6dFABqM41e87gLX45v5Ik9IWniQDc8AMvfIwGufA8blv8lLlk0DJuzaeOZNs6Tm8ELX+HI8YwLOZTN9TyQrevIr3dAPoW7vj/CrnSQVvQI+pXricgBbftKoRHpqn5esQXOcXr5yvLI9KTrNOZ2ysj925vG/uynUlRqFR/X1BfW4kdygJyX6V9FQwv3yF18490BfzSq48k2/RBz3Z4XBVeVSSuGDgCmoPGLk+tJCuB9JyV7kuL9tEDl8oAeecr+eFo7D1IQ3hRc/MqTlIGxkdHXPCD94OTY7r2/JsumtfX+6IZ4YvcVT3VdA04OCmDzzfR3cNd21y482MV6c3WXgOucdTd016W2WagvFgqRripj8mpfpVxu6GjhU4m5Yd7jo624RhCup0BlsbsuGXZ82Htzx/ZpVPp275Fgm/POSPd1T7ZpcrDA7vjRkAfnU4gSTX/ylIevRT5ndNL4mArOAFzhjUIEABpaW9sARLGy/yTFO0xVjkQhAJzjJYWA+9/NGX12R2u+BH/4Lj1JOXpMsjhxn6ZIu+hpyuAIPxY2RruGdw4HD+8oJoC6fZU3YNfRrv1A1Y4dfEp3NXzdkNk+id/wcK4cuIEs01X9VO2rPMAfd5SPqbc2O/1KmbokfoP5pryAs4vKeq1wgOd5H45K7g3c1z3PDfIZP5V4nipkaF9z7TZ6qAH80IzgjWlvGA2tATjEEX667fnoDf3lWQCkWOm8+pMUVSg0nZvdJykArqcpqgvR9/geC0zhIeA9RfBeR3mFhuQM0MLFwvAlp7KGJbL1HPnzfuJ6pTjYxVOHbQWZXVhAWGGTl9rO20hdv9Z1q38/xZPtyqsyJvfide3JmId8Pl1k+qr/nbGQOa8WKxGytVbFrh/J/8j7OMISw0Nno8TRWmt/+7d/m/H+1yDb+G+j6PaVyVI4WJeHK7+G3S9s+5LJNo+VyseBb2T9Q57clqIDnu3mcGX70L9ZxMB06Rqw8RA51W8ijeMG3uFTYndj3OV7qPipcAB+eC26S7DKmUyicAhH8mgcr/qpFANVGQC36Mh0QC2WSG51O8VKRfcUKuuywtnBjr9oz9jxU8Lm9vT5Z58/+cXZhwcDQOZH53FzpAK3kl45nIpu7cYmn3ZsoQHtsFG08/+HyVeD/aNu2X8tmb32md5GDg+Rh3aO7RiqYw6L/kf5plmbvOVJShP+hR/5CkV+DnhPfujTBVaQqHCvsdp4lJ7hWPkSlbW4W3RUfL4L1b6rvAxVP+lBejW4rpm2w7/E2m7Ki4dtJMt0VT+vyAA/p/TpUZBjoN5vNR+7MWeorrNd3PFr97M7Piye8FHGZlefffbZ1/9XkAd0iGu8u5v5FtiNFf0qqsErB1U4rHbe/qRYae2AqAXQBzEOaeDOa5+ByqsT7xVPN+ubhX2KMvpRRcbpUPkWfaKtc+/FywoWvX+Khi1eZN9mTtz5bcanQHW9ZutjwMuBLdiq/TJUY6nyBlhcFR8VjsWdgoUVHXReqWjtr3rYRrJMt+Onyt2xj+TAmpddH5X4KCeY/zu4swY97Pqq5OaV+z1DKd5i994e2tCefJLyaVFJ2N0JYxsS++2Tk6zb4PadksezDEuf95PUzrHJ4x3t6D3PWqBNxvA7/sDbJZNPVkTnxxXvlAtZ707cHN5v8VzBzA3DK1a6+dnnscqmW5Ok8MA7Y6brZYZ8qI1Mzt9xaJ3VX8S1H+8JT4bKuq1sWBHvDnZ8ZdxM/yRnwHvioXSnPnoasMw/07M+okO8OJ+Z3NNVZDs+Wwu+a7M5/lflWTvCDvdV3O1rx26H+xZk3cuzgKE9+ndSsmieRL5pM9yeMNKdTar8WyD2kPOgD7+AKNEAwBYfAM6x6WLl9K+KldHnKDgAHA2HlZ285anJoYsE+WSh9Fs854blvfIZsMUJ/RXgA9MuKgDUIc/GIXT9Q9jP0EdulkCVfqIZPyC2Au96L+w9DXsHdvvY5Q/s2A1u9mjcK1jSpyiOy92D2dPt8iPd0zIr964tqkXErtzqqv3s4ik/DO/0/W64hYaD6jlZ/hXkp5LH9uJ919yg8hPnLXjxqbOv0WuJ+LWPq4I4z0+0+bE8QWkNwIGmbLqs84e8XVZTLmTTXe8rK1YAXP89niGbl6JwE7LuRvTH8nlyVDFk+gXW9ZkWLU30YcHGJri26LH6CN4a3b2/qmt912+EXV+v8LOiYqDCAVaeW0SoReXLIrnFzqHv6Xb5ka4iy/Ja8eHJPoXca7P7KBv7K2jt/l+OHbhrV8Vbc8L2+AQf8CvIGm9yCyCOmR5atX3ehfdfz/XAfkLvl4mfdu6B85CWugYctrxoQOuFysU/GcKXspry8+Y1Mcmb6+K35UC/9WRF+Oxi07d5msIWd1ZUs/kfB+FyUzbSxww5ODyPVZ/F5SErQqp+3o3dOKr87JCJsMMFzrkmJkyePXGZBbXVFw/TV3Sv8u/E6OmG+98VAAAgAElEQVSrski3E0+Vm7Uz7PIZdvPw0XhrDBXXZuv7BgD8yZ/8Cf7+7/+e0Yuo9Pwk9ooDwEl8Jeygq0ol6BYgTV4SP4ft+pg2sjY6AKA1AKQoGYf6lLepnfuoedVz7cH9wivuWGHCnqx0+hU7RGHifa9HPbVQ4zZyATu/WXEgf1L3bkr3icnMp4l/5EKKKr4Jntwo7rxKuvvTVIUjscsH9m2qfFaAZEWJKx/t4qF49+DaObA9XVVW0Vd97dh78uo4d3x+BJ7uV/rL9pUnsMT/dJen+wPH9ds9lPdwIi28XGbddrsstgez9mJXXiGz//RE+FFfShX606BZG1WsrEVJN+P/vQV6AzTMw/qJYmWikeLj9Dn03fRYbKOipHLgVjidiPCJToToFVSEVzeenb4GqgdAFe+22eEOeE9QPF34xKVfUOwekndy/6r8Tp+Rvirblb/CzcYx0Br/Lbiq/TtQ7bvKexSvdBlsbQ0Nn38u/k7Kxw2u99PsT9FCF0VeC5OQXtvnfbT10EwLEIAecPQwGvufUF3FBzCqvYYxxIbxxZMrm6dW+TJFSbtiyr43US1WAF2Y0GLFIPotnslB/iurUUFQ3YC8+ZhzJ8a95IbAu8eyIuTVe/NucbSLO76rNlWexI7NU0XJtDlW/c4Bm+l25Ux/p99MXykWPPluPFWZJ9/tr4LKXjPQWvyfyvjfCPaDqYU9Px/67Z47yY1sPF1++LuohHjT/fKI17QrRQtwLVK3WDFndq81ToUtSpanLeZLrYD7+kTeLNmBfhy9g6XAMX2oYgVtyTUrSGQxoDjIN4NIH20GJd4oTsS4UxuC0deODZDbZbm4izt+3mVT4VhUbbYLFuZ2rPWNw/HuobnTh6ff9V/Rv9LHzpg87nHo74dl45DY4UbI/GR6hjs2r6C0J0rUjjsXdk91frunEMgnQRbXy9mpYbOb3aJlzscxumLViWy23hBPVYDztQ75eyW0INh53WP0bBF7xQqgC5ZpNwSkIJk+bB43npZk42A8CWXT1lg8vNwXQbZRZPp3Yaffd3CrPCDnbhclgW7ncM7kke7d8grHyjNfFX5VZuXetUQWn8Syt70RO3G9G9uxbNIVSGo/weseQI9iRDVk9xZAXzdyUTL9PmhWnFTR4oOIyq+G2tnVfBox5FfhcdJ6szWIyuaUm7/bwoqVk7y8ujHwblImn+tp+BM52ypIbsQjdUzvrfXdgqKyWVXuq2p8r6ASq4e78ezaVflP8yRsoREWJd7Bd8dmU57pd+WR7imbXT9WVuFE8iyXEruxfgrc2cc+Bao/0AGg9803AOBb3/rWqrmNjYAArPzIPjpEXFWsf3A+afGRxSUJ7NDupP5xVSmdMUztE5QG6GJFxEV+Ldj7bsq0KT6VGHL61OFuQbIZT6Z/shCpblbZppH52Xli5CHrowI2v7t+38GvcIANXl90ZTng+96VR7o7Nnd1kdy+RpG6imxX/rRsR/91wG6Mu/zHUduSUvz6578OYLtI+cSDp/2/mJHqkDa72X3FA2DG4v6qbYMoPC4crc1C5dI1/Su+omBZvptyFhGvPLGoFCv947woFiRAXpRYntVXD9XsiYzF0wWC5+/OIWOxO7YIT8Qz8C5+hfcq545uVx7pPpWNbDObqp9M9xGyHXj21X0AeD2G/xG4M0SSws9//XMA9Iuzd3q4BzlhOxOtEcc7uuj+XxibY9ow8nuEhcxW0TKoh7azr20UvZHfeJG2m09QskOt8rRC3ZC2KDH9TVqxEGLweHZj2CkGnniSIvG0Pw9ZDjLs8iPc9VWxq3CAZ3i7utb8pw5DX5VX4n/S346vSLfL9+R3Zdk4PezY7XBfwUf1wzDWcbYH3wYb2in7oO+k5L55/88lhPln+c4jXdHGvy0pPgTsax5q12CKkcvG/peFgWuM05exXZ6gOH9dFtD52i0cqK6ZMVv9oAX9Rms0elpS9ZPFY3Hnhq3cZ168O/1V+rkLG89uX7v8gR27KrfC2zlMra56aO7K7+ju9JHp393PHVnWz0CVN8D4O/fkwG6/Xwd465liPyUhZpHyrW99C//5n/8ZcR0Ugr4Nz/czWUjzfaObrScmA+20E9TlOy3GzeynnVxSzNjXPVNui5Wz76de91R0O/qIM2Bvnp2ixeMBWH4SjvzeRbWIerW/LIfAXh+7h9cuKj4qnIFX49213+VHulfi2/V3R/eU3NNVZLs+M1RsKpynsdNn5Z5/HPXwNJxQZ5Hy2WefOUXK3R7fiZ2YvEmSPgbH+C13c6gPCfplWg+D6hUUjnnD+f0Tp5DZ+u0egZ2f6Cu6ir7Kkcj41SIAyLnM9tWNYGfTYaj2f6efOzYMr/rZsc+4mV5i95C9c1A+Jc84d/xlfT3Vj6evyO72Z7HLfwrv7Pdp39W95hZMqH/xF38BwLzueXpAGlXfPAlRbuKwfeXlsxrbBXObAED6HxyUXxodcF/znLzsFc9l0nC51wULLVaG/PCLp7Ee7hQrQ69eMxn94FhUOBLRurVPQqSs0jdDVsg8gWzMEtX+n4ybrYHMX6bfjS/TP8kBfF7lIK3q7/gaiHhWt8OVcnY/3fF1Rydlu7aRvII7tjv3xv8UbI+jvo25+IR/cdaDt8AeGK2Bm++bXZWfmjR52WZ/7LddWLGhihFgiXcULMqfKHi8JyjZa5DwECHFztBH37+xi363cMgO87GxWpn8HMh8DbB4qrZVbG8GJ6I47mzsGZ70mR1MFWT8TC+xM7YdblW/K884d2KMxlm1qeiq8iqvqpOo8qq460/ajfv5ri8P1f1q9FvlL7gbtujuRpFyt9dXsdtvNanW7yFEWZ8HvQRQL1iA2U34360hLqLvpUj98gTF+cKsvRGiomRZtE3EQwoWykNS+BC9hXfzRj/FeE9SdjaCV2yryMbO8I44XvX5qj1D5jPTDzzBqx6kmX5XLvXsCYfUV2QV/U4e7sqtrsqryC2qvIGIn/2Qdwev2EbY9Vvh39mvXIjuZpHyp3/6p/i7v/s7rSUoxHoDl9M7A+Ux8UBz9zsDFFzvSc8B/SQB8QF+EtYiR7rwCpYmfAvOq1+YZZxIZwuRwesfG4WP0VvsPDVgRQvjDFm2Dr24MrsdVDaGHbyjsLL5esLnQNXXk7y7nLuH5a5dVb4T413dkzY78T4lz7Brt8vfxSv+n9yXPOzEl8Xzl3/5l/NaPUnZ6aSGfX9rDM8mtzpEL4fBbTmv7OuUlSmEziHPioxpYgsiVpAQTva6B3AWz+BEBYlThEhe/2iDuPDt3GcL2VuvWbFTeZJSvRfecfBLZDnYQSW2Codh55C5i6q/j+TtjHusuZ3DNIsx00ec3XFF8ki/088O967cosp7Ah/Zl8ST/T6xJ+3Ec+N1z0C9k9ew08+rybv66jmU/mQcB70coMWAh4b4NU8XGhOdE/o3U2wMwqT091GigoTp2/hoNCe0EIPw10lh0TJpLxYvQ1+5UV7ty+NlfgcqMe4gOiQz3LV7BVmfmX7gSV71YK0c2BVOVSfxlN/MZrfo+pTyqp7hjs3/VlRzUd3jMnzSvzj7PBq8/N3Ll5cLIX/ja54uOtYwnKLF+zP4vekXFDSuJmKJChbV5VoQXXSHq0lh0TJpwU1y9xWQh8oNmT25Ycj0A5UYdyD7rcZQwTiwxvW7UPFd4QCv8XYPyKyvp+0qnF0502XtTB7pduQ73Ai7/HfhnXE8vUd6uDsGW/geTbS+853v4Dvf+Q41fA+8QfTE2PzcHPMWXpiTE0UHXnFw6ri4xqe8I9BZeNysyHgh7kpcr9wwn8o2wzt9P4W7m02EJ31WfL2Lc/fwZU8gsv4zfcb5aF2k3yk0It2uPNM9hY/o41Pi3fuWrENeeN1Twd2J6nb1eX4uYbzPU1iamM5ND90G9XQh/B7LMcRa4b0auv30JOOKfuQrKuDksNyJeCZvQPrzciHAbvzqzfK0LUPVn0Tm+47PO8jiqOAJHxGq/iu8CgfgvCcOxqztyXb0A7u+7+oy/W4cnn4n/5n/CK/YPgkZh9wPhvyj9giJndy8Gt8LRUpDP1Xqwb4PbHHq9pWoF+KdTvOku/8l44WI5SAH9ouWpZDwipWTY/tzC5eGvCAh8VMeHF9TOT4EJymosptl59HmwN2bKovFotLPrs934ek4nvBX9VHh3eXsHJiRPNO9W/8OXaTflUe6XTnDDvcdqPa/swbfhcq+JbETH/OtipQ/+7M/C173sI7qnT+FjfEq+AcSFSewvvjhfl1q/jIRxJ379KHKt/0nh70qXAzN+28A9eZaiFz1khl3oWiZvElY/UxeYfLuFCKVm+qJn2gq/VhU+/Bikn0++R2SJ3xEqPivcIAar7X9VzJ3D8u7dhXOnXhf0UX6OwfsbhyZvypHYpf/vx139tQqWmv4q7/6KyVznqT4X0B9Fq908npCAJTGmedeOknJfZLVuR8XIeHTB8Dle4f92HzdRWWGo4qSoGCZaKZvUrTQV1UQvMPwCLLN404hUr3R7m6QDNU+gf0+djd5hipPQto8WQwNVHxVOIDPG/JMX5W/oqvoBzLenRju2Hi6V+Lz9HfiZtjlvwvvjiO6J3f2I4k7MVf6WoqUb33rW/iP//gPxr2B/aDrqPkeeePJ2PERJ/Ny3+a/2ZOLeZm9GjJhVvntaFRPN1+vaIr6Jr9NNHleYXNyW2uLTfrqh+BOIQL4dtmNxp6gMN0Osj4jRPFYvcd5ArsHVYRdPlCzqXCA+2O5c1BWYso4r/i/Y/vRPu/oshirnAqkn+oe8FTfd3EnpxbVsUZgfVnZUqR8/vnnN4uU2sCeQjGPE1ni83xbe7v5Y0H1iYAqWCo2Dh9YD3r5CqccQ/QKpgHXpbg5m/mPCaowjL92+lvEhbEbVA5mhiftKroKKv1bZH1m+gru+Lhjs4OK/yc4d+f7ru5T6+/o7vR3x6aiv9OXhzt2d2yqaC14+v0JkI3Vvi6txl583VPBeyejozaoJ8DyHefUGsQFRfmLqp18frTJ7R/1ooW9EmIx9I+VazlNd7IUI0M/ec2JlxU4uqJZ9B7uPg0BuG1ml722qN6EHrL+7yKL+1Xc8cs23Dt+Bqq2GS/TR5wdeaWfgYy70+8u567v3THf8ZfpMp8SO9x3oRJDhfMEXt3LgDVWFnuln6VI+eyzz4xkLyl7OczImV4iH+wu7FgeKVoGGlQRUnnKscOvflm2fzQa7vK0Q9US07jzjn5NOQLLqx+s/b/7KQqw2lbssg0i0++iElMFr8R1x7ZqU+VZVO0qvFc47zo4M86dfiuczPZuv+/oL9LvyiN4e8yOr13+1wE78bJXztW9q9IPLVIqhvt4h0+Jy38WfjF/BkfqV+MipxPWoA70Xb5bjBBe/+Bcy3Nf0zDeoKruHK6Aeo0EzrG4+z2UgbtPUTLO4D2FSn9fB+zGucvPUPX3BO/OAXjHRqLCu9vHnbgreqZ7xd9dfWYzODtPGysciV3+gGd3Z4+Rvu7YR9jJe9b3X//1Xy+yF173eLg3IRXcnOsFkR8/h9Job5LHhGUTNLC9oBpqRU4bH+eFobGCwXLsax/A7899RSQ52W8uEWQ3fZYza5/xgbzPgSqvikpsr4LFvLNpW9yxiSDvn6rvjPeqPuLsync5wPv6eFqXxXPHZ0W/a5vx34ndvnf5Fjv2T+8/0V7jgRYpn3/+Of793/+dqQzqg93BRg4fh9e3zqMk1SdRTlA2MQOv2KT8BhX+KCrob/cErlSM/bEO58HwupBzjs55ZfwWbjH10IKrxreDp2LbRbXfKk/ijg3A7TJfmV4i4945FO/YMNz1k/Xxim3GeUdO7uozu4HW4v9o4v/fsJuHO3ug7OM3fuM3Fj0tUj777DNTpOSBbo4lQeRsPwlPwB9fMwVMLT47+ZXJ3T2wVR+H85RChjHrhnWw0a8bS6hXP3D6PNY+Kl/0rdwwu6+CKnmsohLfLrwN84m43xHvEz7tOq/4rHAGMm6mjzhMXvEnUeHv9L/DuauL9HftMl2mz2w9TsXuXfiIvp/YOzxE8Vf6LRcpwMckq2O3n2zROoqRH6Iv5A7Ryaz71B1UJgZYN+YMu3x16Kt6QzRk6EvN0GRD0EjxMvReMULmwMZWee3DsHugP73OS3Oxgbsb/0dhN45X+Tv2VW7Gay3+6XpXbjmVQuxuH5k+43y07uugH6jyKrD7wpO+d2H7fnrP8pCN2YuDFil//ud/jm9/+9tM9SL2J+axuQz8RH1ceZOk+qTuHpqAtsm4wMofbddWhOR+J6Q4XK94GW1bxNCnNKRQyr48a3GnEKnkdhfZjbiDr3t8DE/63/VV4d89PKWuyqvIme6VcVRsgb14qvrMLuO8Q/c05y5e9V05Eyochldjk9jp14I9RQHe8sVZAJsHzIM5ehw2tj4HUrg/KWkRIbC78LzNtFKw7Dz5qA5bfQ+F/Prx5KhapuhcILvR2PgzmzuozFEV74jvLlp79u+aAPftq3YZ71V9xKnYAjXeKwd0pq9w3tX/K7aZPrMdqPLehTv9V2w8zpP7E4Ptd6e/3/zN36Ryt0ipfXlWB1TI3f94rGO8PymlIkJgly8xbY/xQezlUOYDFWdSG/Exmp5J4b+A3C9rC2knB+ym3bGvorKBRIge/b8S76txATUfFU4VFV+t1V6XDO4dnYXHzXxkeol39/FKLl6xzTiZ/Su2ElXuWF/j+i6qa/TdeMfeEiEas+1z+0mKLVI+JsHVPq7BzbieyLHo/u6kyTzt+Ni1s3x5M4Vo46MtOat+P+Wi6PnynpRMmOlNY0hQXZOVx6NPoTQHAZ7ahJ8C6/OVTfuOzUD14M76yPRVDsB5VduBce++Mvev2Gacu7oq5xX/mV6iyt1dTxXs+tjlS9zZgz66P2Dtc/tJyvv+qNtAtDBd1WCURAsO1Hjgk9bnoj4h0QYfQdrt8KP5on4MvfT9FAtV1xSTC993xUclJxJeXnb9VPDee0ZjJ/4n4/J8fUQfDBn3lUNwoMLLOLtx3M1zpq9wduJ5mvOqvsqR2OXfxUf085H7HRCP6Yk+wycpz8C70aj4vXixzx7z6mRnIuyEZra7BYuH6ecInlbI0A6EBUOpgAnwyvdQKjd6JVcVP7uo9PsU3hF/BU/0u+ujyt8tBO5wBl7ty+IVf6/YRpyKLZDzXtFntlWORdVm8KJ7u+rrCbRWfGpu8O5igqF63v3N3/wNlQMPfXH2Iyfo64hXCokd2x2ui4ar+IiKBG9KZ22yEnYKDQCqj+wJyu54K2ty12cFlX7fha/LJgq83t+OfcZ9t77KAeo8wOdWfGScV4qCV2wHMt4TfTBUbRmvavskKmvgiX3M68d7tXu3zzs5PFpg9e1vf5v+KvKdjvYw/PNEZAfaE9g+cA3uTiLwmq1F2ZdDK+WhQMlQ6idAeZxvwqfu/2m88x7f8b3DHfj/2ju3HjuO62yv7b8jnqQhh1e+cZA4CZAEARIksXV0LImSSDmxk88IkB8R2BZFSlYsUlZs2dcBAuQI5CY8i4rze+q76Knd1dVVtd61alXv7j31ECNxut61atWhu9/pvfeQi7Fo3+3q3kOSArkhtWjnNLXxiIaL59pDJNoQbRyK3zfh9605xHVJ0+c///M/Z9vYJylLTCQFpmPanaJv+fwkiX9zqgddgNS8aWLRmBxwrtRU7wh7YqJYppjcr8NHx8/tUzSPFq7/Q7DEBbFFXmnOmpsfp+GMA5I/RKLn+s7BtXOaJeKJbHJ4pPoQJBa9HnG5uPYSzslf5uH6k+ZDKPWp6a9oUv7kT/6Efv3rX5ckENxEmdK4K/imnyCeByS+pr+Y2TrsmCcYmbmM32BLVP8kZI+jiTHK7R3pXFjvQWn/h0AzZk2MBGn+FnoLDdfuQXWenL72hn7oeCJeV9teQhsbx2nzaEj1pbmHlEj1kfrhprYfT6r+3Kd6POyTFA1LLuQhqTUQ0g2HzCuXY4Kj5PtTPNAbbP2hhHGRIjE63FyI5kEB1/95oMUcSHNyeq7dw+m4dg+is9DUmAau3UKDxBPZ5IjRxnlq41O0yEnE59VcBxFzFKPph2jIW21SuF/qxhXfAuv3pMQ3R5+/5qapWbRa00PEr0c2byIMeoPtKK6m+Gki4Xzk5mG3s/ulStKatkTtHNXGE+lyoDGczvLmKdHntEgOTlPbXtIgsUS8jmtPoYnxSGK9ljvvJTlbw9XCjQWl1A/Xx6VLl4rtYpPCDbqWSX6b+WPJ3Rz3x6NmbtKJ0vOExHksTE+Kfd6dwIS58K9jvAfOU0HNSRBiuX8tc22RmvE7p38TYXizsDITnJZrRzUeRMtpasduocm1c3EeVEck08ZYxtbkQpDml1z/YnL3qfj8rIG7dlc/SXnhhRdM3peSgl0M2VqNaOZW0FdYt2QhtXFE/EKLcZQ2Zzv/PyanC/8afAOan9xJkDtpSnD7KI7X9LEUS9QmmXsNaJ4WN1kuzo+d03mt5HgKiZaI19fUZKGpXTMimxw5auM9VnmIbHOlqLmvpPD54rotcsdwBoUIMClWv9St9UJNWLIr5QbRxqXg5laU3/n/RTlB85E1Pwm4uj21JwvSD6I5FC1qs8hpkYNIngfRa26EXF6uHdV4EK1mHGg7oqnpH9Fw7Rw18dpY59qa/BpKNUivmzEtcnMv9RABJoVoeJryf//3f5yMiJZdqPi9I+jNsQR0I87gxy5dsNScSXOUyK2JqA+XmF/UuBjD7THRuEi/bq2Ix1dbV3xR5eavFsv80lyI3s8Hp629QXustFye2nYPp6up0YPqQjQxnppYonl8bb4ckrzS6wKXW5ovRJvb5EkK0fA0JWVSuMKsYd87YkA219lhZCHDefEXQyQuJHWjsr6ZVt8Mne3cc6D1afelNq41FnVZ5IipzamNR+I4Tard4uZLJNMS8fqadm1bTE7L5eDaY6T6mNp4IpscHstcMbnc6HUyhqtVm5conxt5klL8jbMhf/qnf8pJTHDBDX3JGyARkbQ77aJp4zha5G2R05ot1IiSOh0l40MuXOApr8IytzQXqve6mqcpXFwKJKZWY1Evoq3tB9XlqI0nqssxuU9V5FmC+NyXXE84anK9/PLL9PLLL3My7EmKJciCIhqI1PwZpSaa14kuWO2NKAd3g9Js0Fa1WsLtF+RmtGYsarfI4anJVRPrQXJoNbU3Xw+iRzREvK7Urm2Lqc2DaDi0ObRxIZK9guLjpWZHev2N84bfS3PFcPccC+AnKb/+9a/pV7/6FSebAaZvDvTr3Q2xWCSLHChL9mXB1ur1xBemVFsKbrzIedbSrLXIK80p0TtX974ULi4HEsdptO1cXEitKSHCdSm2GBtjmQuBu0aghOeFVc6Y3W5H//Iv/8LJiEjwJIX7lM/SC5JD8hIRqq39t2TQmBhkTrW5Y5ZwxJZobujIfEqQGo0QVOeR6lMgOXL7FonNURMbIsmDaFMaixs8EaZHNZyZ4vLUxIZY5pE+PQjRxKSozVMbb02qHs31O8zDjVGTn4jPGwKblBdeeGH/d0kHLUFNhpgoberfkpEsTjxfkliO3FqEF4Ga/qQbXzI/yD5C8sQgeS3Q9FOaz1K+pYxXCJIb0dSA5Ec0MUgMp+HaU6AxpRsFlyPXzsXFlPRIrtr4GE2MpyY25FB5NNdBorb3HiL+/pPjlVdeKbaHwCaFKP8pn9aYmhGjVOHicAsSo7kZSSld5HKgfSP5EA0CmgetPQTJLcmL5EuBxCGaWlr0YZ1Tkk+iDVniJm+pqWnnYmOs5qaENJdUz2GZzyqX1gzEWOXhSPUT9oF8qscjMimS35eCAC+gZv4SqUOzY/l+lHgcNQuOzElN/hKW41gaZN40tMhbmxN58rIES/SP9IFoUnBxXDuqIcJ1IakY5+pe/kHrqO2nhDbOUxvvscoT0iJnidw1268fClq3JGdM2EdTkyIBHThLRZqa360SGhnJonPjRvPkyOWvzRvDjYNjqZcorMadqgvNbT2mEq36apG3RU4iWV6Jliivt8qTgtOG7SltjZlAx8vliZHqS9Tkqon1WOTIkTMaGrh9UpObiJ8HJP/ly5c5yQS1SeGKPQSI8cgShu6G7+N8fszIQpQI5642Vwi3JtxPRqHOAqQvC3InuUX/FjlStMrbmvAcWGoMXD9cew5kLFxurj1EovWkYpA82vF4UB2RTIsgzSfVl7DMFYPmzuksrsut7j2e0hh9f5KnKESEfwTZ86tf/Yq++OILTrYYYmMilCO0WGyidnlRDt3/oQlvYpxm67QcR4vcaE7n+JctQjgd1+5BdSFcTM6wcOPT5M0h0eaozVEbT2STo0Tr/CEtr9Mtcv/rv/4rJ5kgepJCJH/JxxqRKRFIa2jlTpGNbtlfDNL/2ojnw2IMFjliWuRcmqXGgPSjvUlzubl2VOORaIny+vB4zrzkkNQg0aaojfdI8ki0HJa5WoHUqL1P5HJr80lf6iFamUnxE7Lb7Xgzwq/LDDZnDocvCrJhQtC8Obj+avNvDW4+WnCIPiUgJnrJMVj0JclhreU0XHsJLlZqSJD2EIk2hTZ+cu0X5pDqU1jkQJH0ZXX9TvVZk5sbQy63xqSIX+4hqnvJR9GdGpUpYUJqFhahdX4JaC3cmiLvEUH7soCr95CsubaQmpuKBqQPRJMDieU0XHuIhVZ6XKqJ0cSkqMmjiV16r4a06s/6emmdLyTMLX2ph0jxJIUIe5rSanFKQKYEkJSIx2W9uMi8WfeZA6kFAcmDaLbA2sbB7dfaerXx2jiiZWM5fW17ilKMxphY14AwhNflINLVoZmjFFL9knC1Se8R1vlCfG7NUxQiY5PCDdSSJQwJAncTaAE3z0vUcKxwc7s01vVY5HMu/3F8i/wpJHklWo8kxtIQoHrpjRfJi2hS+LDdbvz7WUtKDqGvRRcXYpFDSthni+t1bkzavizyaU2K6uUeIqIvvvhC/ZKPhqQpUVW+TiSLvbIx6+sAACAASURBVFUOOUblNlexZF8xvu9wrnMXxEPWSVTXf00skSwe0XIarj1GY4SkxyXY5CCquWhra9DGWWJZQ4vrqEVOLse//du/FdtzqJ6kEBFduHChqUmxXFSijMk5I/6lbRzcYmhI9duin0OCzO2aWbr+mv5a3rAQrPvR5GsdozESMaiOKK3l4rn2HPq42ZGUDEJTgyYmxiJHS+L6LO4TFjnDHHG89ikKUYVJQd6XgtJiU2RNSeIw9NJRQGkxLJHMS8s6zgOSubbivPSZwtdh8WbGJeM5bW17jMZsSvqQaIliE+K/2QV/1zHmleeRj0GmXzul8WjvC7X3uDi+xqSoX+4h0r/kU9FlFokpaUl40dUsbgt8HdK6ajeqB1lvbf5cboubX4rUHLboJyTOH6/n2qmt8xDxkhhOy7XHaAyI9LiUmjzpUF0+bR3aOEtK16qlqelTE/vv//7vnCSL+kkKEf6ST4sNsjcl9qmrCMeqHbdmE5SI69DUpYmRYJ3fIp/mZlELkhfRpMiZnRSaPrTGUBMTUhtPJMthuS8QvbY/JHcKNA6TQaIJQ155nAetP0QTk0N6Hki0ntp7RNinNJc0tuYpClGlSVnyUz4tcq6V0liRTdEpY7WXnEt/ysUqfwqf26JfqZ4DyYdoUmjjcqD5/Bpzeq7dw+m4dk7DxXPtHLUGwpMuQ5dXOyZtHEervCGpPrT3Bq5eyQ8zKe2VK1dmxyRUmRQioj/7sz+jX/7yl5wMhpswDbOXggy70G4MLdz8LF0PB1evhEO/zJHq17oWNB+qSxHGovsF7c/qZbCaWI80R04vPY62e2p10uNSkDyAJEAkJqIhv99aSD0xmpitYWlcQpzL/8qBmNS15aBPUohs3kBrvYGWfCmIqx1dXCu4erZM67G1zN8ydwq0P1SHIs0n1cfUxhNhOfyFuqRF8oTU5mphTtDYvMwR7T8tieUiivPlxpU8nAQdR2tydSx1X4j71/aryeOcoytXrhzepFy4cIGTJLHaRFZ5WqGpL94AKXfa4efW+smLVZ4SS/QR4m++nCYHF0ukG5MmpoQkn/Tmj+TmNEh7ySQh8TUM4ViOodbw+7x2BBIl0Y5NG2eBdd/IeUiU7heNDUFNS61BIaK6T/d4vvjiC/YlH4Nu9ljmOiY0m60lW1ynpWo+tn5qsKpRm0cSx5mFUMfBabj2kgaJRUDyAJKAXL3Jw6GCExRBxnFMWN4LpLlC/X/8x38UlBgmJoWI6I//+I8n3xulhS8KnY6Umj1VE4uyRB8Ivg7pxSpFzZhqYkPQPKjOw+lbt6Maj0Qbkg6T5cp3LcuTQjuuY8TinI1Bc77++uv02muvcTKW6pd7PC+88AL95je/4WRFWvxUUBNbC7qYnTSHXLuYVrVsKW+LnCGW+aW5NHrkh6fW7ZwGiUdA84CyAHHAvo9Wb6S1evO3BbmX/tF7S6p+NDZHmLOUy+KlHiLDJym/+c1v6O///u852R6jbme0yrs2ajfaIVjb2ljWY5krRev8S2ExDoscHiQXoiHCdJymth3VpNDEyUOmAVg8JCqiGdvW0N4TQrOtzUE0j/3P//zPjFKG2ZMU5A20LTZKi5xbgBv3mn4aWJqU06+dg9r4HK3yhizRRwss6pbmkOjDC3spjstZ245qPBJtiml4adzZpgKqoAm149sq8bhRwxHGpeZOk+f111/PC4WYPUkhIvrlL385ewOtYfo9LXJ21sUh17i279p4jtzFqHW/raipuyaWSBaPahEdp2ndjiLNg8u5+outpUYWZEzojdmD5AyR5Pe5JTEpauNT5HL+13/9V/K4BrMnKUTD0xTpYpWwypX6d33Cf/lYQ+oXxFndLLifzLxmi3DjaolV31Z5QmpySmIlWo54n+b2pHPO7NyoiZfGSvSIltOU2rlYD6oL0cR4+NBB4HXj+0gy8hmwMItmfJoYCZr8qRjJfcDK7ISkctb+htkYc5Ny4cIF1RtoNYtWophvR0njApMJtRoDkqd2w1qA1HkIrOuyymeVJyS8SLTIXyLuz+ImSyTThqwxjtPUtHOxMVJ9jmmadM5cV+USdPX5nKMB0uXZIuFY0et/aX7QHDFhTsuXeoiMTQoR0cWLF1mT0moTwXlB2daAx78RlhyPVV9WeUKQnIgmJheDGB7txSyE64OjJl4ai+idG26Ug1RnLrjYQaPLLUWaC5cPQlwfkw5E8sVjstjHMdy8oX06x/+ixRCLsZWuCSjWT1JM35Pi+aM/+qPJ9w262NMydwt8vaVFl27OrdNyDS1yW+QI8etrmdcy11qoGZM2Fo0bZRK93py0NCY18XzoKOC1OdSBRFQ3vjWivTdo40rEOd944431P0khIvrzP/9z+sUvfsHJRFhuNP9Sj+R9KeHLQ6K4TN3ceLj2mBYb0MMZK2mtrbCqwyIPl4NrL1ETi3Aok6wd1xJxEi0Rb2J4U1LXHiOt36OP4xQpsKB0biz2GAjXRHKexmspic0R57R+ikLUyKRcvHix2qRoT44UufefaN+X0vJfVdZiOV85lugjhWW/lrmI9PlCI6DNUQPXJ9eeIrzoaeJRJLklWo8kZirl5nT/t0J7PkepnYtFkYw9BAsLRbvJ91h8iDjgYJTmNDYK0h8QtIaFqC42xYsvvrgdk3LhwgW6ePEi/e///i8n3aM9OVJozQdEw9TnFcu1D7HKa5WHaJqrNm9tvDVW9dTk0cSiMRJDQoTpMePCtfO1hKDjjfFxw0uVk5akft+abEZqQDRpnNvGG2lTtcXHUAOhjSNK1yGJJxpe6mlBE5NCRPQXf/EXRZNivXHU+UrroEypQeK214Z67o3R1KGJSaHJE//UpMlhDVIDsh+RPBZo+pHEcCZh3wreiLmbe6mdi923CMYXg8SWNEB4Ac0cE+Xi6mpZD+F8I+eeJzSVGiTGpdVTFKKGJiX3NAU5CVBMchmkkCKtW6o/drTzoYnTxORAfmqSILmI1PQTY5mLo7YvNN654SdvvSlBb9ypPZBv52KnGmysIej85CiHy3JjpUCio0VjWCTXCY5crlYGhaihSSEajIo3KTUnQ01silYvB8VvqLWu+5hpMVc1OWtiQ5A8ztk9UamJjYlzaS9sIZb1xUhzD/rxvRGlcNSUpHPMD3LmAzEeg4Zv136STBMTUhl+Rl2S3Bg0e9nnSsXWzpVHUpfGsHhqYmOcc81e6iGiNh9BDvnDP/xD8QJK9SVaGRIiqj1/jgrLNdOirUEbR6SL1cSElC6WUmprORTSuiV61JAQ5W7EJdOBaJB4oliHGJsckvlJgdSXxu9hRDuCzOfW0Z7f2rgQSY7vfOc72zYpv/jFL+if/umfONme2nKamZJGaYmCmn0f+P6YsSPdT01rxXIs0lyDXBaTQ9o3kS5mq8Rj1f7075HGojd45GbsXPzSUVpbutFysXMNX3ftG0mncTpzEeLTxffDcnn6/raMxDSEaONCuBz//d//XWyvpblJISL6gz/4A06iP3FabNoGKWO04z0G4icBLeZCm1Mb50HjUd1SWNTTcj1LSPtD9WkTMb48VNZOWse/JXPm2qbt+yOTQ+mOBw02Tg86LxxGaUhaP9EwBu6makGuH+kcamrVxITUxhONOd544w36zne+w6jraPqeFM+3vvWt4tMU6cIS6WJKaH9ZmwTrmteIZIwSLYc2FxKnueDHIP3k0MZaXEQltMqtzauJ4wwAn3Panpe7Ytvku6SupOFqHOHHw6Ptu5ax33gu7GtIPdmz6CfMgZoHTUxIXHdNjhdffJFR1rOISblw4ULyuGaRNTF50s9h1E9nzsJqH1WvmaXHZdWfNI+FMSHi++Xaa2iVu3SRa9UnQk3fpfVGTAJRTjdRDP9l8iHmZa7hameLm1Eznyi+i/A+iYx/aZaZi/x5laPWsBCNOaTxL7744vGYlIsXL04+jqxdcG3cgEv8rZJMIk2damMUY5RmKTRzxaHJiZoS5+ILKh8TItV7uDjpBYaIz4lilUeCpk9pzFQ+j8XSDaKSMSnnmTbKaioXKJ0PDn06R86F+1edaHU4p3/5SWoeUuuJxhLl90MuR+uXeTyLmBSi4Ze7ffXVV5wsif5kik7wjKqIKohnjb9avwX6tZOh6YeLGZtLNwoevh9hwgQWOVqxdG01/eXWfN4+awE0RMMNudQ+aPZ/S2q5/dhmv2njMGS5JTdUi6cNMZK5iLXSGmrqr+2bKD3Wl156aZGnKEQLmpT4aQqCZCMMZC4syaMJYKGc2Sd4Nox8Xeqw6E+SY5Dieg/aB6rz1FykWiEdQwtqaxjj02+GHXXJo0x7CG5M9AYnc+3bH2YL2FM7ryhxN+WXfLCauNq59hyWL+HXGIfaa0FN3yFLPUUhWtCkEA1voP27v/s7TkZE6GYqXFiyLQlEYhxsDGkcOfM38NbU0wrrmqT5pnLkRiXL70HqstKkWMv7RrTU1lyO527waY3eUIRwuqGRM0r7I7NDKQ1UGIRtLk5xOCzHGaM1HqmaJPFE8xxI/FLvRfEsalKQpynYZshcVJJHEySEa3hPSFyDqiZFSCuwtaxH0s8gLeu5mxMKVxfXbslSfS3VT4maGjgzqjcUITXGZGzPa6LrCDMmlJp5PQ/4+UFu9Dm0hsVjFV+K/cu//MtsWwu+xgms+da3vpU87pwDT4L5CehmRxM4N37R+OX/iHGZLwEu+hM0yHIp+7fAr1vqS0scW+oD7WfU5vX77cFM6KAr15Sri2tP6dDcVnB9H6qumJoa8rHzdXcu3Bv7o/uvMT7WhDmmuoSCzRO35+sJay7v5ZBDrm1qTL5+zdc0N65FKeWxyE9Un6cmPje+pZ+iEC38JIWo5pM+8cbLNkWkG9FeiUgoLuNSyXL5Dfstga+BPbm+NTVJY+byefxUI82P6yVaIrl+K7QYlyYnt+58yvCmlVHwSYjOTIesPXdO5dskhHXnfuLGxpamInSPpH+JVkOcX/OEgwib9xK1dTjnFn+KQnSAJylE49MUfHNMT3jupJ1+pVuTxKFFMYYL//jCgfw+hsMl/mS1bu6O8TWoo1XfaC6/b4Yvr58vxFRHs/Z0XvnYOC2SY43k5gL9qqE2p8vujVgzOTL7GnKktGNMqa5p/ZL2ab1hDeOYcJD5RDSdKRbzdIgcS36iJ2TxJylEw9OU8F9ILjNMYH4esQmuDBfhyOXzFvpzicbUsSJOEVMBusGl1OYdwrEc8wt9GlQXg4wlp0Fic4SfSCj9xBu31fS5NJpaJTFzaW6dkocj0qaDbyu1jwdltUIFH4TUnlwz4X6S1h3vRWk80XI5DvEUhehAT1KIiL797W8zCkf+xMyfnPyJllQ5QsNhJq5UkNcFf1Q4ajIeT+qnJKkDL2Gdd4zP5/B7arq3pjGxZsyZzx3XXRqL1XhLhHlL87xELTG5enK1cO05dDHh3kive6jJp3TB/11GV2oL65+1kI+b1zDfo4PGj5+fgxjJ/HEga85p0C9JLpRSnCZfSG08Ubk+lDj+EO9F8RzkSQoR90kfR+W55Sd+ds4aoV10j0OKASQtqB0bilU/aB4HboZ5OkQ7v0ilwGvFdCG5X2Cl+YlKiqZeCZr80hhUn5Zxsblr2XAw15YrKV9rvA/zbTnwecB0a0BSq0SLEObTnIvpeoY8knQWdRzqKQrRAZ+kEKWepnj3lpQTJX5CyCocIXIicuU/zsCVBn+Cg/mvRFwcz1Q9/glqjsdiMbYYrg+0Hy5HKY9z/svr0pth1A1fuYWIddOcebBasTGVyM3N9Fg81nI8+rUGJDVJxjCds3hvpNc/nudp+jFu3ja2p0tK1TqtY9pnukY/Fsk8dOqxm+vS/uHR1PHSSy/RSy+9xMmacbAnKUTTpyn8hJXb9+fl9EgWgVSFC5MK8ju2biZZopmfWx6LHCks8qI58rKxAdGUQGrRajQ/BY3Mb1YtQMbGYf2L5yQ5JFpPec/sqLy/+LZ0/ryZmXy3/1Y2Lvv9V4brz7e3rEGDc7onluF4NfHj3pA/WQmJ531N70XxHNSkEA1PU374wx8yqvIJJr2wKM9bCHktMv2EitAS0jFosOgDyVG6KeQ1RNzkTmPyWn8R42rl2lHNlJ364uWR91mPRZ+SHBKtB9lX8fHcnpGak3kbn2t2VDVmPsbyTdip2Jp8teTOY+RGX6Iu3u+HOrPiiWs59FMUohWYlIsXL9KlS5cK//hg5iSb/gdCKIeRnjgiY+Kl4eYThCNI6+ewzCfNhV+kZ0dSMqWBmbbnxsCNTftT2oj/aXv603yI9VOLpUFNYIxUTxTuBSwW2Tu42Rjb+ZjSXsZq16KZ162Ajq3OdOT6GXOk04V7o/6HE893v/tdTtKcg5sUouFpytykzBdqeg5iG4Yod8LLQTdpjqI5yTTtY7Rda+MK1M5DCm3O8cKbvxGPumQL0+4pXfjz7YOGTb4HNTh5Uhcom9pCfJzVT865N/8iIDpEE6OLmR1JyQCjgbSn9m5Ki40jNV7pDbYzJ5xX/Xz6HLvJeucMi9fo+1vHUxQiop3TnIkN+Pzzz+nzzz8/+84F/w0QnHQ1o7KckqQxKaQXPWVJURnusZyDFLX5uXjOlOy/A3X7o+Ae5OrzoDod6QuU9LrVtsZ2SOqWaGPQPUEU77fxm5K5wdpy+zp1nK9TA3pDROcayZczy1tAX/M8jkul6et//ud/OMkirMakEBH9/u//PnNT524MxeYsLaZA8gREbUyUYSms5sAqjwfNN70o74K/53Szlul3oG7WWqgXHwuvm77EUf9411/EkL7XRHiTktQu0cZoYnkzwbVNNbzZSeWS193B0RiBEHm83KwMGl703e9+dxUv9RCtzKR8/vnn9PPPfz4eKJzAkxbxCFInej3SqRSZE4FUgrTmkJrYGG0uLo5Pm/uUxFQzO5K5GcRw9XlQHQ/32nUbSvUjF8UYu/kYqcmpiS0ZkGl7qW2usTIoztW+56lTon5uUROC6tKk6lzLUxSilbwnxePfm8K9P4U59yNSJ6wdqosXV3TUzOpLVIQS6cbHYZEzl6OcOnehj+F0+WBkbIiGKH8TKd9cwtrLVyrJhcyD1h6iibGgtl9pPKrPmYaxbf+dsG2eM3U8rBOtOab+Bjzg+7fKtybiuZWP0cePcfFyDSnDg/6JaNheJq7zzTffzCgPw6pMClH8JloX/DdB4aSNUZ6LE7QnNBHljUb2sL6vqtCKMeaozYnEjxLk4j9rnX6X1OYTlG46QztfP1Falzdj8wvT/IIkOye2+JJPWKv0JR+i+rFK4m3MybQ9t+/zpgWvtwSXR7oWKa38pj5HUoNFfyX0hsyPIfUDy1nLvmmqnbeXeemll1bzMo9ndSbl0qVLdOnSRXqe/UgyRedefhMK9ucEycbmkP5SN7E5EcpjrMZ6qDwlPZeq3Fe6rXQzGTXYGFAdz5BnSKd/elJbT+ki7JzspQVNLeW9IM+XQ5OL36fy/SYxKJqaa7DozyKHBE1/kj3tifvxho7P5eMkZoWIgk8EcV2s7SkK0QpNChHRt7/9Mj3/6v/NGzInZYxkr2k2Jocjx5U4gzUnwnwlpGOW6ktY5crlmR8eD/Bdc1pu39W1o5oB5OlJ/mIWw128iPDa8muDxVti1acmDxeDmZN5u8ScDMdltYd6/sZ5vkkZDik+x/D/dPw0re8TMStEod65/Lm+lo8cx6zSpAxPU6Jf8FY4ofcSwbkoPXE5tPlQc8LqOITh2vHEWORBcmAX9TTl/Pm20k1maOfrJsJ1U/yFjSi+WKV/miqjKuHA6OatTG1ONJ432aX23B6fHkdq4TRce4ncEzVEt1XqTYuPn8allyH/9KVkVvw1Iw5d41MUIlrXp3tifvf3fnf4C3siFZsnWA5XmwsyHM7/D9CGCOUh2vGEaHPo44jKF/TUcaSv3I0g3TZqkNy8TnexQzTYU5NDw81PLVb5JXk4bdmA7L9LtKVi+LoQzaHA9vv2kI+L148pkacwqfYdvfnmm6t7L4pn1Sbl5z//OX3288/KIrD62mHWxhMVDEfisOa300rQjMc53a8gj6mNJyrnSDeVPmrsiILfWJuLL8GNiWv3YLrck5MY/gJHNMQ7x1/MUiA/GWNjakOLvqU5OX3OaIxt6fZUHNcXqlkb+ScG8rHIjcKA70sbnwLLhWjKZoXr5uHDh2XBAVnlyz2el19+mZ5/9Tz97/qAexPdxFY34JiZ2QDSS39LLYJ2XHGcNI9UHyJZk7nEZY7HePOSEspvHKOG7ZiIcN2UMGaXHeNuF/567LSGaBzPqB3Fmvo0MVa06FuTk4vh24nK+2/exuVENQhhHuxGW4dV3UT1ueL4mvEPucb4dCrfX7kf53z89Prg24jS+e/cuTM/uCK+xgkOzSsvvzI94Kh0b9jjnIM2Y6hD9Bw+n6OzvL5eoO6zqPjgJM5J/jg3GR9HqJfEeazj/bG83n/Fk+z2bZnIoJ/p8Xixxj5SfQWR4LgRHaIJ1JSqh2g6/vk4ZvJAi/Z9GFL7zKLempxoDNfuNan1HNpo1obm5DQ5uDkprQfytXXqxzKutyuen3z+eez0+hDnPTk5WeWbZUNW/XKPZ/+yD7Bw6Gishl2bx6UGlTzE9KMoo7p2Zbw2LiSXY34Y3R+pk7hc56DlNPxYEc0U9LVn/xIW9pOe5gfCuHbtT5U+T+1THATn8Cd0OaSxnF7TzsWgGo9E2xrtPlob8nGg5zYRd16XXgb2bWt+mcezCZNCRPTNb34zcXQsHR1FzXBrYmOypiM6jJoYFM0YNDGeJWIRY1FO5Yrmxjnav28jbotBauY0/iaKw2sl7ztBP5WxFSxq1+bg4rTtXJylZi1o96XsXGoLXovEgOS1pe7eeuut1X6iJ2QzJuWrr76iv/3bv6X45oGiHaY2LsXMcBRSS7QlNPVrYoj0cSGSHIO0ZBiyLQVNqq3UB18voiEq6/CLGxF3gfOIUm4AdJ5RtPm4uJp2LtZSY0Hcj2wfr5PaMeDxvK70tGTyXaQ7OTlZ/XtRPKt+42yI/90pz796PhwAzzH0ZER1Epw7e6xMDq83FBZiii//gH15NGPXxITUxHOxJeORbp9qpu252LobCRGuIwq1/IXL18ZdDMPu4evmgZHMmZSa3Egsp6ltRzRcey1c/lQ7t0/XRq3x8vF8HH/OO5c7d8Ma57/EbQtPUDybeZLi+Z1v/k7p/rAHHRaq46jNozInFV1q6106zoPEl8zFvH3Skmifioe2fA1YfZiGv3h5UB1nQso/dcUg4yDiL8JonhbU9i2JR7SchmtHNFy7BMtcKbi9s2bktQ96LEz30s6o2W3mZR7P5kzKV199RX/zN3+TbUeHg+py1MaH7I0HYk6U3Wrr1cRpYkKk8byBmB0ptOfa5vmROi00+EUP08HpNgo3n1K0+bg4rn1pTYwmpiX4ebAOZPXKflCoMSuPHz8uC1bGZl7u8Vy6dIkuX75Mz58/nxxHTyhUF6KJ4UCfiGjNibZmaZxUH6KJlcRg5iOtKZuT9PGxna8R0Xi8lr/oxTnT+rhrNu0GkMwnQk0+LpZrRzTcHvTwefgca2GJWvlzDAc/b4nGtRy0/Dk61U9azppS3d69e3d+cOVszqQQEb3yyit7k4JuXGudFOdk709BzQmaL4dmvEvFhEjiSxdw3JxMj49tubz1NwPuojbNgV348tfHsYG/IM4Ja8EuwvUgc1iDNj8ax+m49kFDhJzwWC5eo6KUdpmtogadE8me587rKY5yxqP83pO8WSEaYk9OTujk5GSmWzube7nH89lnn9H9+/c5GRHhGw/VIWhzoaYD1aVQ1wbGoboSkhyIdi6ZHtCYk1K/WE28hgi9uCGaASgdDf2iNW6JmjFJYxE9ptn/rSQDc/EaGItU4H5cM9g5iutG5npxijOePHnCSVbJJp+kEI1PU+KXfWLQExLVpaiJ9aCmQ9OXJiYEjUd1Hqneg8aVjMe8fa4p3RgkBsW5ul8eFsblL3K53PxPWDm09R4S65q1+ZA4REPk16usRTREeJ9ZgHD2F08G7GiXzqm8ER8Kf45z+PlHtAN+cuZPPuEURPTRRx9xktWyWZNCNH3ZJwV6QqK6EE1MCjSPta6EJEcrbYgmrnTRXsqchMdycfFx7uI16su6MU1p7ub/7o/kwrcGNHujRG0+JB7TTL7LySBzgmiSZEIkJoQjlStrXAJ8nD9fuDnlzisLJAYkPo/5kPl5j5qVrb7M49nsyz2e58+fJz/tgwwL0YRI9SXQXKiOSKYNkcahelSXQhKLarkLv8acaE0LCnLBmzLVi8MDwr6ldRPla5fkqnkCJUHaRyt9aQ9KNEReh/UbyixNiBU72q2iLsn5KNGG5y0ehsVs9WUez6afpBARXb58efJpH/xiYKtDkORCtagupHVMK61HGsNd1MvmJH18aCvdSFK5ZHUTzWP4C99U7xynz1/gNPWG1MYTrScHkS4PGsPt0amGCNOV+0ZrY9Gm4bfmnjUYFKJhzvhzcECiDSfRn7N8qI8Zn4jGMVt+mcez+Scpnt/+7d+GTzprXQlpDom+lTZEEodoEU2MLoYIu5DvjyTa0/FcPRKDIjchROEj4tzFqUxaLMuxLrg10aLJK4nBDcX+b1WavUJQ44yK0CIb2n/YeToi1Q+gZoUo9QT17bffprfeeiuj3w5HY1KeP39OP/jBDzgZfHKiupgl4jgt146A5EA0RLguBo1DdUT8hTxnTrg+Su0S0xIju7jNL1Q4c3EcrzNU7UDnUEJNTkkstw/3rZPm0p4ta4jwPicIpE3wWwytI7NnW+1VaV6pfkBiVgauXr16FE9RiI7g5R5P/LJPjOwC0kabAo1HdIgmBxqL6ogwLaKJ0cUQaS/guf64OrRxIaGWv8BN8w6hO/Dilhp3QjZp58cR14zELI22Jk0cahTmqbn10e3tLAJpDslLNLvcY5RCCsm/EI+sFX9+zZGaIKl+YIhxDj2XmDIOuQAAH2VJREFUh6cox8LRPEnx/OAHP1D/Nlqista5uo+SeiTxqBbVeVrqES2i8Ui0HiSGu8hze0HahtQkQXahIyo9Txen2giWc67J5RxNXpYr3XXlxiSt2bcAfc4QSInO5qTR3gmNi8TwWCA/twYkcRLtlLJZefvtt4/KpHyNE2yNV199dfK95MKCaBFNCTTeOQdppTpUT0QiPaJFNLGO03okMc75C7gLvuL2dI5Sfq4tdYyrtYRkzAMu+zXmKcWvk3geZHNSRptr3ENu//94n021kyNJ7bwEJB9f92TO0D/hnOS3Ff6VIOxvaTRrTkSiGG0ftJ//ecvVq1ePyqAQHeGTFCKi+/fv0/3790UbgNNy7SUksagW0SGaHEgsovEgWkQTItcTZa+IhXaun1J7ri13XP/TVRrrfAgWfabmp/Yj0Qg1eaWxc3lur8yOqDQzhbBeIkLS2lC/hcyR7uvW+hAf+/TpU0a5PY7mPSkhr776Kn355Zfsb6P1aG4yJaQxEj2iRTQxaAyqI8K11joiqZbo0OYk1V5z0fJwN/sWcGPUYpXXKo9Hki8tXdacEMlqJiI0rR1G/fmnMBZ73s8Zmqu1PsQ5Rx9//DEn2yRH+STF81u/9VuchD1ZuXZUk0ISh2gRTYhEb6210oRI9DljwrUN7fZtCJqLF0KrvIekdq45JPnz0tL+mx0Va/ZHJ4fxuolILD8U6EtClntdkkui9Uhibty4cXQv83iO2qQ8f/6cvv/972fbuaHXtueQxCFaK00MGoPqiHCttY6I17YyJ0i7FsmFTEPqjeKt+0RpNacpNH2NIXwsYmQQzf7I7BBfw4SCfP90wug1mdBgcDlRM4JgsY81OaQxnP7q1atH+xSF6MhNCtHw/pR79+5NjiFD5jRcewpJDKJFNES4zoPoEY0H0SIaIlxHhGtL5oTLoTUuLW78Fjk6w9qkzBkCZ3RDyumnjahBSevQejBdDm8wkkYCTX2ALWxx3khzSPVE+Zhnz54ljx8LR/fpnphXX32VLl++vP8eORG5mwuSIwSN8TpUy7WjuTyIHtF4EC2i0eg4rXNhzrkWy5Fu52JTbWHdXL854hy1+c4DubmSzBm3l+ba4SujoDBHXjvq8jn5eoj4/Yrizv4EB9ASRpzgi4L/V2BxnkjjJVpPqo9jfoLiOfonKZ7vf//79OWXX3IydvNw7R5UR2Sr5do9qI7IXotoQjg91+5BdJym1F4TW0LzU1cJ63xbQ7sOKdBceVm6AdEjmhJo7RNKITumfQmMtnbNOSKNleqJhpiPP/6Yrl69ykk3z9E/SfG89tprnIQ9aZF21FFLtETEarl2qY4I16JjQTShjtNz7aEG1ZXaUu1cfq4dIc5Rk4toPr8WNa6NVmOU5HJu/AqORl9zbT6tX/+cZpozB1J7Ei6Ea1+C+dSqUM8Ryc95idZzcnJyLgwK0Tl6kkI0vJH2r//6r2fHuSmobQ+RaIkwvZWG6HA6IlzL6bj2kJKWy6ON9W2an6BSWOWRIuk3nA5BWOFm3BZu7XPMw0r7INsUMQjLeiyZalyKkFUh2G8lJPs9RBrH6a9evUo//elPi5pj4ih/T0qOy5cv05UrV6CXfayRXBxQLaJDNETr1xHxWq7dSoMYEKQ91nIXpxy5PrX5ULixphn/WXkccYAY3VhGxnA+D95VnTmZxsGdEpFsPrhP5Ghxztns4XAoFem0P1xI4zj9jRs3ksePlXP1JMXj35/CDZ1rRzRcuwfVEeFaRIdoiOx1RLgW0XGa2nZOw8Vz7THoBU1Ci5xbRboeOSR5ULOBpUyL0rFQQiKSjSdHzrQ4tI5Y1mDbWpwLmhy1MT/96U/Pzcs8nnNpUoiIvvGNb7AnZE07FxuCai11iMaDahEdoiGy07Vsr4mVoLmwSWid/9BYrUOIJGdeOm3AU6KGBk4oGk8T0O6Nt6rl3pfkkmiJBv15e5nHc25Nypdffpl8f4qHm5ZcOxcXgmoPpSPCtFYaIlsdp6lp17b5dulFKqY2XkNtn/G0cOmAJSb87qaHW88U6ZDcNSN5OIEDtZCIiHRjM8Gi27rtOKF2b3skeSTaq1ev0ieffMLJjpJza1KI0kaFm46am5MH0SEaIlxHZK/lNFx7CKpFdJymZg0tYyUXKZQWOW2wqItf+1q4NUSYp6gzJ7KaMK0spxGturTYWmdYnT+SPJz2PBsUonNuUoiI7t27R59++ikR8Sdurp2LC0G0iIbIXkeEa2tu1h5UR4RpOU1Nza1iQ7iLVQ0tc+vhasLmTQu6LgjpVOsyJ7J8I2Gc6E2yO0LKskVQHofFOYPmKOnQfyj3WDk3vyclx2uvvUaXL19mb0K1BqWUQ6PhdKGWwyonkkPTF6flNEh77njNeLn2GK6/Glrm1uOYL3us5sG56VfQQrn659o08vp4rSzfQKoOl/iTRd4lEVXuBpG4jHwd5qDxub7O8xMUz7l/kuL5q7/6q+RHk0s3KAmcvrY9pIWW03HtqIbITse1lzSlWC4v164B/YmsNbV15KYmTKubviHI12e5BvNU4YHy4wK8DCfSckxz8foQy7krPXlJGxz5/mIjWAFOzf6XxO52O/rkk0/O3Sd5Upz7Jymef/iHf6ArV67svy+5aMlJjLjx2vYQVIvU5eF0SDuq4XShVtse6qTHLfrVEM5Py344UnWE9UyP0ewrn5fXTHHR19lRw7kZc6X7OlPN4ojQsUznitOm+5/P8Zgrrc9hOXceV/iTi0h/5WEjsDQQNXMkibtx40Y3KGd0kxLw+uuvs5tQstEQuHxcu4erW6rzcHNR045qQl1tfyWd9HjYhvRrTdh36mtp5n0Wbx1CrPKksZg/58avgoqIfB8lXchUGPaTzwEnV493MRwFg8X3QUrt+DAI7Xwhc33t2jV65513iprzRH+5J+LLL7+k733ve7Pj0mlC9CUNEk9kr/Nw+traEQ0RpkM0RLqaU8fR/kqkUwwHJY+FJbTKW09cV/38lrBYP6LcGuYYxHjMVMjHsYIZVvNgDlqW4XauOTe0sam4a9eu9fehRHSTkiA2Kpop4mI0N0ypxoNqEV1t3USYzkpDxOtaGhReXhZoL4ASdrtdclxL9B3Cz5WE8XfRSNcshzzNGIDHSmJYwQyruTCltiSjbVq737XxPq4blDT95Z4EV65coTfeeIOc4x/NpeBiam70kppQrUSnaQs1nM5Kg+paGRTnSjcZF3yV8WMIv6wpzUHpK60n9VcdLvrC1j+Hvr6xBjxWEjMdI0rNXBCRtDuezDDiVSx9JYMqqJ0jbayP6y/xpOlPUgp873vfo2fPnnGyCdx0ltq1bTGo1kKH5FhSQ4TpSjdmyfGY8s2lPdqf5trRqh7b+ZyuW11ucKuQ74fXs4IkQ15d7J7KcI9RGpbd7C96tOeSJu4f//Ef6dq1a5zsXNJNCoPEqHBTqbnZczlDUC2q82hr49otNUT1utRxPGfyaOrgQdBcONvhP7aL1tRmHtG15XCOaLdDzAYRbkw8sDDIicdkUaZwcCC69vXUbn3tuYPGdYNSppsUAM6oIFPYyqAgmhArvWY8MZyOa0c1HmnNXO5yM17XIUAvoMsS1oTNvWQY3Hoi6FPoP82TVMwkfAxEIg1uPGoRLKYQyT5JoT1fuLhuUHi6SQHJGRVk+qQ3R6QNaQ+RaIl0dSF9IBoiTIdoiNqMJd+M1XQMpC7A4JIQEX7jkOQcEAdkkfcdIjEmRLm60zlEiXkOak44wI0CgO65HJzpyJGK6wYFo5sUAaFRQaetzQ0S65vIVqsZC9rusdRxGs38L3LDOGPe13BAe6FcjiXrs517YFsBSMyJZK/BSWWs2qBwyPeaxemjOQfDmG5QcLpJEfL++++bvEdFc4NE2j2ojgjTasbCtYWgOqJ2/XGx02bJzaUGXTLNRXQZauvSzUeO+rUaE8hySfaPKDFGJuUWzEk4P9Ntju8ti9NDe4797Gc/6wZFQDcpChCjormRamKkGo+VVjOWGFTL6bh2T71BIUpd5cHuGUySZNFeWNvB1WM3H+P62OUkkq577nyZHUnJ6tmgOUHmt7yt840Wp4PknOoGRU43KUq+/vWvZ9s0N25tm0TjQbWcTjPOEEtdjaY897MjTLsGkySLILkg69iR5Xwg+0KLLPVcnI4XJZXh/P8UfeRCGmwH2byOyLfmECCPS8OdG9euXaOf/exnRU1nTv9lbkp+9KMfJY/rboS6Nt/OaTyoltOV2i3ya3SltlweLn/JoDinv5gOuOBrO4TzOf3iIlF0ifx6DF/5Na8l7Adjusb5+HZ7YT8fZ39EcGU54VcqhaPCvODIY4ei5HFpSnuuGxQ9/UlKBc+ePaP3339//73mxq1tQ9o9lrot1VtX6+xIoQ1FHbhR5j9Z1v7UWlqXVujWexqUzqFKvIfbw1U0SD03SJWboYB8n9nu1fCpSjcodXSTUok3KpoboiYGbUc1RDY6bVsMquV0NfVMm5GbTQlxQBKu5hLcY+hlKdey23FzrJ8HKbIpL+235NHUwalCVkA9ht2Jn9jssdur8m2fDpDnGTk9Pe0GpZJuUgx49uwZ3bp1K9lmbVCQ5UI0RDY6bVsMqkV0NTXZGBRYCORkBSaERsY5dwBjk+pvmbGH8OtBhNaVz4XsQawPMwy60xsTBN1+lG9jO6Ny7do1+vTTTzlZh6GbFCNSRsXSoKAXLmQ5EQ0Rr9OMIwWirdVg8ZPvCm0p7F7bRtZ5SZY3LG2Z7wU/vrp559efFcDnuRmCrtqaEBTdXpRt4bwYzdMNih3dpBgSGpWlDQqyjIiGCNNpxheypA7JMUrm2lI4khvDKk9btmRY7NamDN8NK4DOcXPA7tZhTmLk+1C2dfmXJXN0g2JLNynGPHv2jD755JPs71HR3Ny5JeLaUQ0RptOMQaLxINqaeRs0+78x7bMW4ObEUZ1gVRzKwCDr3AKsW+7c5TXmMN0VTYkj7v59APCCZFtUblTee+89evfdd+cNHTXdpDTi5s2bM6OiuaGWLmLI0iEaonodEo9oiGx0SA7uBpFO4QptCOrAavycHMpMEOn7RtZzCUqmVQJnjpuR6A56UgJIkuiWW4GsI3wb8kKf69NPP+2/qK0B3aQ0JDQqmhtq7ibK3Vw9yNJaaDRjS2GlRfJwmnnzeABIHyEOKMLVjqI1DOeR6ZTr5//Q5gQyJCFCOcQi247vBN/+vPDevW5QWtFNSmNu3rxJT58+zba3MCjIkiIaIl5XaxaI7HRcO6IpmZN0ew5YmGTpm1k3LGm4/YJgZXC0qMagCNHiqPWnyeQv28zJi7pBaUs3KQuQMyo6g5JuGzX8crbWILFEuI6I13LtiKZ0MwHSn1Fam2xTBCxsRtubxrrg9oWGdMq6flrUmWSBbvJPdIZ9t9z2k/Q3F3WD0p5uUhYiNiplg0KUv0nqjcESGiSeyFbHabj2QbP/W6EtBdd3sTkAFi7OFg0LsuYtKBldDYuPo0F34peYiChlCFpvQ2yfj5puUJahm5QF8UZFb1DmbWM7d7Osa/fUGhREQ4Tp7DREufnLh5fmIdsUAIlWx263288pdlFvD7LGrSmZXAkHHYtB1zpDUoLfY3bbMJ1omn/4phuU5egmZWHee++9zEs/k+8ybXKDgiyvhabWvHhQLaKr1cybJNocsHCztDIvyHouhWUtlrnUCEuwNyMc2J6q33p8gvv373WDsiDdpByAp0+f0nvvvTc5ljIipZsk8pMbsrScpnV7CKrldFw7oimZxkkL39UZsPDcEJsZbk0OiXVt1vmqAEvZG5NQz9/TjcE6rDMr6eDT01O6d+/TZFunHd2kHIjQqOQMR+5Gyd1Ah3Z+WWuffnAart2D6oh4LdeOaLj53bfwXRGyDjm4Omto9bTjmGgx/y1yqimUkn1SkotZfDthHeq3+TSwG5TD0U3KAXn69Cm9+65/olIyKGM7dwPlDAqy3LUaJJ4I1xFhWk7DtQ+a/d8ATQlIlIRbwxacN9OC7AUrluwLxoV/BetDZAfZRnynuu09BHWDcli6SVkB7777Hj19+mT/PWZQxuP775gbLLLUnKa2HdV4UC2n49v3fyvJCgYFqzPHIYxJia2aFm6dl2ANNXjMatGkWXwLlTvUbOl79+7T6Wl//8kh6SZlJbz77rtnn/yJW+oNCnID5LZBbTuq8cBaR+xPglwubH6yLbkGFtQYrYU1GhdubZfgUDUs1q9FN4tuHRuzcu/ePTo9PeVkncZ0k7Ii3nnn3cQnf3L/kN14cNqOm5dRw92g27aHSLS1BgXtizOIKFZ51kRL44Kuz5IcuqZF+2/QlSPcJNSjNyvdoKyHblJWxtOnT+mdd/y/olk2KNxNr7VB4WJRDRGu28MYFC4f1z5oZkdSsiKcwTxP5AwNshaHYE11LV6LYXepVMsZlZh5x2Etw/tP7s00ncPRTcoK8UYlvzQSk5LOwS17bbulZo8L/1qIqzQwg2b/t5JsRj61LE/nMCB7YwkOWoeway/fkSz0cEZlzm636wZlpXSTslKePn1KH3/8MT15Mn/5hwg1KPPjY3udCVnqCQsRzYbAfTyy1M6/PLT/W0mWpD81WTeiPXcgDl5jofsWla3FqNy8eZNu3rzJyToHoJuUlfPOO+8ERmVcqumqbcegcO0TXPhXJs7MoAjqO6O0FlaI5o2h5ftIDonlHC3NKmpPlDA9Z9rsm0Nvx/v37/f3n6yYblI2wNOnT+nGjXfIX0W4m2LpZsstd017TewEznDEcHrIoIB9RXCGsAZtTVLW+O/xICw1P61YS/3OOdrRjj1Hptjuk0Nsu9PTU7p582Y3KCunm5SNMBiVG1UGZWivu1lrTQqXdxDxZmKCC/+qNChcewFurjVA87QCljQzW5kTjkONo22/dvtgwS1Fp6endP/+fU7WWQHdpGyMGzfeoSdP/C9+S5kUvVGoade2Ie1JOIPCtZ9pNAbF0pyoxn4EbOnf7dGy9JiW7m+KjcNYwqj0l3e2RTcpG+Tjjz+mjz76aHacu3nWGAlO06JtRtKLKAyKK7SVUJqaENF4O4uzxfVZV831LqOlUekGZXt0k7JRnjx5Qjdu3Nh/X2NQattbtE3IyGaGYfatwsCk0JqaM+Bxdg7CVtdn3XXrnUYLk9Jf3tkuX+MEnXVycnJCd+7coZOTk7OLld4M1LS3aBtFtGmD4pzDxtk5CFtcH1/zmut2LpxbeZ3WQ7t582Y3KBumP0k5At5+++3gfSpzuCWuaW/RNgi45onjyLch7Sk0hiaAHd8C+BqWfJPrFljD2khZY81oSdPth+9Fi23bX97ZPt2kHAlPnjyht99+e3acW96a9hZtJT/APR1Jarj2GKk+xiliKuHWsAVbMz6HmCML1lB3bQnprYLtH+026y/vHA/dpBwZ8VMVtVmobNe2wSYh6Vdc+E0SdT4O5/8niAHh1mHtHNLQbHHuDl3z0L/tmpW3QLkv6fbpT0+Oi25SjhD/VIVb2pr2Fm1Tj4GbieGw0qBItCmQmhVwa7NFljArW523tdQ9rcN2vbDlT4uQ2P705Djpb5w9Qk5OTuju3bt0cnKS1XAXRa3R4PIiZM0EklpiOiTaucjcoDi3/jdF1mA9tnC+rHO3Zo11z+s4RF3pE52bov7m2OOlP0k5cj766CO6e/fu5Bi35DXt2jZ/XZKYibHZYZrxG0yXFiQOyU8hbo7PC9zTlWOYp7WPga8PeIwBgjwRmTMGxfH9V9sfP92knAOePHlCd+/e3b9XhVtyrdGoyTv4jBUblExTNyidmC2tL1aryllk0RkVIl+Hj+8v75wPukk5R7z11lv0+PHjoobbDlqTwhmU4X8yk8LVSmRgUDQxGZB6O9tla+srq1ftLGboTcrIZ5991p+enBO6STln+KcqObOiNRrcNuJMSguDQhTkZeSz/qX6AmitWyEeD/eSzTGy5TXV1263ztotc3p6Sp999hkn6xwR3aScU+7evSt6rwq3TdSxOYNy1pY+7FgTIdZNDxRBDQo3Z2tGU/uxmRU/B7vdTjUfa6R+HHZrLNkup6endOvWrf705BzSTco5Jnyqwm0DtQlh2jkDMz+EGQ8ivi6iwHDwUiI6PoPSqs4tGpZWc7EW7MZns7boFrl16xbdvHmTk3WOlG5SOnT37l26c+dOtp3bImoTUmrPGZRM20wH7Go0n4c1KPt0YMKF4NagNWs1LIeelyWxH6vNmpa2Rn960iHqJqUT8Oabbybfq9LEhDBt81dgcEMhMimAjqhgPHJ1VsLN6xY5pFk5xvlEaDtum/VMbYv+xtiOp5uUzoTHjx/Tm2++uf+e2x5qE1JqL9342YcZmJmpNijJQ2DCAtycHQtLGJbzMpc5lhl//TqGW6G/MbYT001KJ8ndu3fpww8/LGqaGBQitUkR6cBdL8pZATdfx0qtWTmv88ax7LzUrSHRYFT605NOim5SOlkeP35Md+7cMf+4crFdYVDQJx3DYVdsD0G1NQaFm6fzRM6w9DmSsfx81ZmUW7du0q1btzhZ55zSTUqHJWVWmhgUookhQD8a3MKkcGPwaA0Kmr/TkXC4fSU3Ktev95d2OjzdpHRg7ty5s/8UUGuTghiUokHg9MVQx5oYj9SkcHPT6UhY137CjMr16/1TOx2cblI6Yu7cuZN9vwq3nVQGJWgbv+UehcTf8jn3h4FTwgX/RUBydjoc699HeaPSzUlHQzcpHRWPHz+mDz/8cPZ+FW47LWZSBtHZ//h842H+KYrEoHDzsVX8sCrf99oB2N4emm+K/r6TjpZuUjpVhGaF20oWBgUyJx5X0Ce72RdRBDUp3HxsBckwummxYft7Z9gI3Zx0aukmpWPCnTt36Pbt20UNZ1IQQyExKVx/80N2T1GGrnndmmhxJeimBeeYLsXXr1/vL+10TOgmpWPKhx9+mHy/CmcYVmFQMm2jZv63FGPXeL1LccizfcuGpV8mMbo56VjTTUqnCaFZ4bYYYijMDArRzDsgn/rZmkEZ5mDdrsDStLBr3mlKNyedVnST0mnKhx9+WH4ZqPQU5ax9+B+2TaHtnDMprEEpiCh+SgHU0YD0+A3dQEM40wKtbWdRujnptKablM4i5MyK5VMUaCsLn6LoDArRkiYFGveeLRgWyXg6h6Cbk85SdJPSWZTQrLBbj3vKEsDm8kw8ycyxlL5NHtm3HMCkwGPOsgbDUjuGzpJ0c9JZmm5SOgfh9u3bdS8DBYi2cM6ksE9RMiJa1qCIxipiKcPSqv5OS05Pr9P773dz0lmeblI6B+X27dv06NEjevTo0bQBNCmi7dvgKUq6e0FNIKJxVmNlWJasudOC4anJdbp+vZuTzmHoJqWzCh49erQ3LE0MCtH+nsn/wrgUCduS7V5YVwHxGJuAmJY11Nmx4tatW/2XsHVWQTcpnVXhn6p88MEHRZ1q2+ZMCvsUZX603L2itgDV2BZjR7Xj66wT/8Skm5POmugmpbNabt++PTMr6u1q+BSFL4EVZBly6+NbEo+b+8hwZxucng5vhu0v6XTWSDcpndVz+/ZtevjwIT18+JCT5nEZg3LWFvwvL/DfNXqKMubV52gBd4VYs1lxztFuzQUekP5+k84W6CalsxkePXpEDx8+ZF8KmrGYQSHSGoy1GRR+nHPW5gXCS1s3KgOnp6f7jxF3Olugm5TOJvnggw/2poXFyKRgZwok2rPkx5cRsDGWWYsfiC9t59mo+N9tcv36dU7a6ayKblI6mwZ5ulLc4s7SoBBJTEY6Jx5vCT4+nEN7gtS6nyej0p+adI6BblI6R4P/VFD4dEVvUM4EJL2BY+K1GBTZ2HQcwheU1v3YjUr/+HDnmOgmpXOUfPDBB/TBBx9UmxTZ2cGLW73pVsowL8verJf0Btxl7diMyunp6dkndPrLOZ3jopuUzlHz8OFDevToEf3kJz+ZtXGGQX5mMJZnVQbFs+TNeplP2kguaUvU04r+ck7nPNBNSufcEBoWftfbmhQ+FyswYX66L3mTHvtuaQ6kl7SWtVjTjUnnvNFNSudcMvzelfQTFp1BIUoZDTwPLFSTP9WXuklP+29hDrSXsxa1WNGNSec8001K59wTGxbdKbFeg4KNp/VNOl2DtTnAxprGupYaujHpdAa6Sel0In7yk5/QgwfS33A7PY1kZ5VILAI/vVvfoMt1WBgEfKx5LOrQ0n+XSaczp5uUTqeA/3X8P/5x6mWhkPE0kp9R4gAI+and6gaN1VFrEOTjTVNbB0p/WtLp8HST0ukI8C8JzU2L3ftYatGf0q1uzng9NQZBP+45NXXk8KakPy3pdHC6Sel0lPinLA8ePKQHDx5w8gy2p1/96Wx9c9bVIzUJ9eNOI60jxj8l6U9LOh0d3aR0OkZ4w0JE9OMf/5hRe+xOP7tTue7GPEVfk8Qg2I19DlpH+ISkm5JOx4ZuUjqdhviXhR4+fLA3MCM2p579KYzdlDHqakMMgv3456Tq8Eakv3zT6bSjm5ROZ0GmT1t+xKh52p2+vDngsamNMyrt5mDk+vXr/SlJp3MAuknpdA7MYFwezP7O0fbUXY9J8aTMSos5eP/99/d/74ak0zks3aR0OislZ16WO2VrjEqbGmOjUjMX3Yx0Ouunm5ROZ4PEb8z90Y/qXzpKozUq7S4r3qhwl67wJRqi/t6RTmeLdJPS6RwhsYl58OAB/DLSFI1JaX9J2e12s6cf3YR0OsdHNymdzjnnwYMHxX8CYDA4+n8ioET4kkuK/jJMp3O++f8SQbUiin1pjQAAAABJRU5ErkJggg=="/></g></g></g></g><path class="cls-5" d="M218,224.57v44.1c14.58,10.4,29.24,23,29.34,39.25,0,6.68-2.18,20.53-18.5,27.66-14.1,6.16-28.84,5.45-29.55,2.06s5.57-4.43,14.76-8.28c12.32-5.17,14.77-13.58,14.77-18.56s-2.16-12-10.82-17.81v27.43c-2.31,3.29-10.54,5.56-10.54,5.56v-95.9c-8.37,4.79-13.61,9.3-13.61,14.65,0,4.87,3,9,8.29,13.27v25c-14.27-9-28.82-19.64-28.82-38.25,0-9.84,4.73-18.57,14.08-26,7-5.52,15.72-9.79,24.19-13.93,12.75-6.23,25.95-12.67,25.95-20.33,0-7-7.24-12.7-19.54-20.23v31.5L207.42,201V85.21s2.1-.13,5.21-.13,5.33.13,5.33.13v55.18l3.54,2.09c18,10.57,36.53,21.51,36.53,42s-19.91,30.21-37.47,38.78Zm24.7-179.52c-5.83-1.75-9.45.47-13,.14a90.94,90.94,0,0,0-13.7-.46,57.11,57.11,0,0,0-37.6,14.93C167.57,69.43,161.4,82.53,161.4,95.6c0,16,5.69,29.53,17.39,41.47,6.9,7,15.19,12.73,23.31,17.73V130.16c-11.67-8.63-20.17-18.89-20.17-34.56s16.61-30.33,34.18-30.33a68.84,68.84,0,0,1,10.89.94c2.37.64,3.2,4,9.69,4.69,7.77.86,20.32-.71,21.86-4.2S251.8,47.8,242.66,45.05Z"/></g></svg>");
+}</style>
+</head>
 
-      .sidebar .nav-link:hover .feather,
-      .sidebar .nav-link.active .feather {
-      color: inherit;
-      }
+<body>
 
-      .sidebar-heading {
-      font-size: .75rem;
-      text-transform: uppercase;
-      }
+    <div id="loading-screen">
+      <p id="loading-animation">Loading Snakemake Report...</p>
+      <p id="jswarning">Please enable Javascript in your browser to see this report.</p>
+    </div>
+    <script>
+    document.querySelector('#loading-screen #jswarning').style.display = "none";
+    </script>
 
-      /*
-      * Content
-      */
+    <div id="app">
+    </div>
 
-      [role="main"] {
-      padding-top: 65px; /* Space for fixed navbar */
-      }
+    <script>/** @license React v17.0.2
+ * react.development.js
+ *
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+  typeof define === 'function' && define.amd ? define(['exports'], factory) :
+  (global = global || self, factory(global.React = {}));
+}(this, (function (exports) { 'use strict';
 
-      *[id]:before {
-        display: block;
-        content: " ";
-        margin-top: -75px;
-        height: 75px;
-        visibility: hidden;
-      }
+  // TODO: this is special because it gets imported during build.
+  var ReactVersion = '17.0.2';
 
-      /*
-      * Navbar
-      */
+  // ATTENTION
+  // When adding new symbols to this file,
+  // Please consider also adding to 'react-devtools-shared/src/backend/ReactSymbols'
+  // The Symbol used to tag the ReactElement-like types. If there is no native Symbol
+  // nor polyfill, then a plain number is used for performance.
+  var REACT_ELEMENT_TYPE = 0xeac7;
+  var REACT_PORTAL_TYPE = 0xeaca;
+  exports.Fragment = 0xeacb;
+  exports.StrictMode = 0xeacc;
+  exports.Profiler = 0xead2;
+  var REACT_PROVIDER_TYPE = 0xeacd;
+  var REACT_CONTEXT_TYPE = 0xeace;
+  var REACT_FORWARD_REF_TYPE = 0xead0;
+  exports.Suspense = 0xead1;
+  var REACT_SUSPENSE_LIST_TYPE = 0xead8;
+  var REACT_MEMO_TYPE = 0xead3;
+  var REACT_LAZY_TYPE = 0xead4;
+  var REACT_BLOCK_TYPE = 0xead9;
+  var REACT_SERVER_BLOCK_TYPE = 0xeada;
+  var REACT_FUNDAMENTAL_TYPE = 0xead5;
+  var REACT_SCOPE_TYPE = 0xead7;
+  var REACT_OPAQUE_ID_TYPE = 0xeae0;
+  var REACT_DEBUG_TRACING_MODE_TYPE = 0xeae1;
+  var REACT_OFFSCREEN_TYPE = 0xeae2;
+  var REACT_LEGACY_HIDDEN_TYPE = 0xeae3;
 
-      .navbar-brand {
-      padding-top: .75rem;
-      padding-bottom: .75rem;
-      font-size: 1rem;
-      font-weight: bold;
-      background-color: rgba(0, 0, 0, .25);
-      box-shadow: inset -1px 0 0 rgba(0, 0, 0, .25);
-      }
+  if (typeof Symbol === 'function' && Symbol.for) {
+    var symbolFor = Symbol.for;
+    REACT_ELEMENT_TYPE = symbolFor('react.element');
+    REACT_PORTAL_TYPE = symbolFor('react.portal');
+    exports.Fragment = symbolFor('react.fragment');
+    exports.StrictMode = symbolFor('react.strict_mode');
+    exports.Profiler = symbolFor('react.profiler');
+    REACT_PROVIDER_TYPE = symbolFor('react.provider');
+    REACT_CONTEXT_TYPE = symbolFor('react.context');
+    REACT_FORWARD_REF_TYPE = symbolFor('react.forward_ref');
+    exports.Suspense = symbolFor('react.suspense');
+    REACT_SUSPENSE_LIST_TYPE = symbolFor('react.suspense_list');
+    REACT_MEMO_TYPE = symbolFor('react.memo');
+    REACT_LAZY_TYPE = symbolFor('react.lazy');
+    REACT_BLOCK_TYPE = symbolFor('react.block');
+    REACT_SERVER_BLOCK_TYPE = symbolFor('react.server.block');
+    REACT_FUNDAMENTAL_TYPE = symbolFor('react.fundamental');
+    REACT_SCOPE_TYPE = symbolFor('react.scope');
+    REACT_OPAQUE_ID_TYPE = symbolFor('react.opaque.id');
+    REACT_DEBUG_TRACING_MODE_TYPE = symbolFor('react.debug_trace_mode');
+    REACT_OFFSCREEN_TYPE = symbolFor('react.offscreen');
+    REACT_LEGACY_HIDDEN_TYPE = symbolFor('react.legacy_hidden');
+  }
 
-      .navbar .form-control {
-      padding: .75rem 1rem;
-      border-width: 0;
-      border-radius: 0;
-      }
+  var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
+  var FAUX_ITERATOR_SYMBOL = '@@iterator';
+  function getIteratorFn(maybeIterable) {
+    if (maybeIterable === null || typeof maybeIterable !== 'object') {
+      return null;
+    }
 
-      .form-control-dark {
-      color: #fff;
-      background-color: rgba(255, 255, 255, .1);
-      border-color: rgba(255, 255, 255, .1);
-      }
+    var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];
 
-      .form-control-dark:focus {
-      border-color: transparent;
-      box-shadow: 0 0 0 3px rgba(255, 255, 255, .25);
-      }
+    if (typeof maybeIterator === 'function') {
+      return maybeIterator;
+    }
 
-      /*
-      * Utilities
-      */
+    return null;
+  }
 
-      .border-top { border-top: 1px solid #e5e5e5; }
-      .border-bottom { border-bottom: 1px solid #e5e5e5; }
+  var hasOwnProperty = Object.prototype.hasOwnProperty;
 
-      /* Snakemake specific */
-      .result img {
-        max-width: 100vw;
+  var _assign = function (to, from) {
+    for (var key in from) {
+      if (hasOwnProperty.call(from, key)) {
+        to[key] = from[key];
       }
+    }
+  };
 
-      .result .preview {
-        text-align: center;
-      }
+  var assign = Object.assign || function (target, sources) {
+    if (target == null) {
+      throw new TypeError('Object.assign target cannot be null or undefined');
+    }
 
-      #rulegraph canvas {
-        display: block;
-        max-width: 100vw;
-        margin-left: auto;
-        margin-right: auto;
-      }
+    var to = Object(target);
 
-      @keyframes fadeinout {
-        0%   { opacity:1; }
-        50%  { opacity:0; }
-        100% { opacity:1; }
-      }
+    for (var nextIndex = 1; nextIndex < arguments.length; nextIndex++) {
+      var nextSource = arguments[nextIndex];
 
-      #loading-screen {
-        background-color: white;
-        width: 100%;
-        height: 100%;
-        position: fixed;
-        top: 0;
-        left: 0;
-        z-index: 2000;
-        padding-top: 50vh;
+      if (nextSource != null) {
+        _assign(to, Object(nextSource));
       }
+    }
 
-      p.animation {
-        animation: fadeinout 2.5s infinite;
-        text-align: center;
-        font-size: 200%;
-      }
+    return to;
+  };
 
-      #loading-screen p#info {
-        text-align: center;
-        color: grey;
-      }
+  /**
+   * Keeps track of the current dispatcher.
+   */
+  var ReactCurrentDispatcher = {
+    /**
+     * @internal
+     * @type {ReactComponent}
+     */
+    current: null
+  };
 
-      #loading-screen p#jswarning {
-      	text-align: center;
-        color: red;
-      }
+  /**
+   * Keeps track of the current batch's configuration such as how long an update
+   * should suspend for if it needs to.
+   */
+  var ReactCurrentBatchConfig = {
+    transition: 0
+  };
 
-      #panel-loading-screen {
-        width: 100%;
-        height: 100%;
-        padding-top: 50vh;
-      }
+  /**
+   * Keeps track of the current owner.
+   *
+   * The current owner is the component who should own any components that are
+   * currently being constructed.
+   */
+  var ReactCurrentOwner = {
+    /**
+     * @internal
+     * @type {ReactComponent}
+     */
+    current: null
+  };
 
-      #panel-loading-sceen p.animation {
-        margin: auto;
-      }
+  var ReactDebugCurrentFrame = {};
+  var currentExtraStackFrame = null;
+  function setExtraStackFrame(stack) {
+    {
+      currentExtraStackFrame = stack;
+    }
+  }
 
-      .vega-actions .btn {
-        font-size: 100%;
+  {
+    ReactDebugCurrentFrame.setExtraStackFrame = function (stack) {
+      {
+        currentExtraStackFrame = stack;
       }
+    }; // Stack implementation injected by the current renderer.
 
-      .plot {
-        text-align: center;
-      }
 
-      h6.sidebar-heading {
-        text-transform: none;
-      }
+    ReactDebugCurrentFrame.getCurrentStack = null;
 
-      .preview {
-        text-align: right;
-      }
+    ReactDebugCurrentFrame.getStackAddendum = function () {
+      var stack = ''; // Add an extra top frame while an element is being validated
 
-      .ekko-lightbox-nav-overlay a span {
-        color: lightgrey;
-      }
+      if (currentExtraStackFrame) {
+        stack += currentExtraStackFrame;
+      } // Delegate to the injected renderer-specific implementation
 
-      .navbar {
-        opacity: 0.8;
-      }
 
-      .source {
-        background: none !important;
-        overflow-x: auto;
-        width: 100%;
-      }
+      var impl = ReactDebugCurrentFrame.getCurrentStack;
 
-      table.dataTable tbody tr.selected,
-      table.dataTable tbody th.selected,
-      table.dataTable tbody td.selected {
-        color: black;
-        font-weight: bold;
+      if (impl) {
+        stack += impl() || '';
       }
 
-      table.dataTable tbody tr.selected td:first-of-type {
-        font-weight: bold;
-      }
+      return stack;
+    };
+  }
 
-      table.dataTable tbody tr.selected td {
-        border-top: 1px solid #007bff;
-        border-bottom: 1px solid #007bff;
-      }
+  /**
+   * Used by act() to track whether you're inside an act() scope.
+   */
+  var IsSomeRendererActing = {
+    current: false
+  };
 
-      table.dataTable tbody > tr.selected, 
-      table.dataTable tbody > tr > .selected {
-        background-color: transparent;
-      }
+  var ReactSharedInternals = {
+    ReactCurrentDispatcher: ReactCurrentDispatcher,
+    ReactCurrentBatchConfig: ReactCurrentBatchConfig,
+    ReactCurrentOwner: ReactCurrentOwner,
+    IsSomeRendererActing: IsSomeRendererActing,
+    // Used by renderers to avoid bundling object-assign twice in UMD bundles:
+    assign: assign
+  };
 
-      table.dataTable tbody tr.selected a, 
-      table.dataTable tbody th.selected a, 
-      table.dataTable tbody td.selected a {
-        color: #007bff;
-      }
+  {
+    ReactSharedInternals.ReactDebugCurrentFrame = ReactDebugCurrentFrame;
+  }
 
-      table caption {
-        display: none;
-      }
+  // by calls to these methods by a Babel plugin.
+  //
+  // In PROD (or in packages without access to React internals),
+  // they are left as they are instead.
 
-      table.results-table {
-        width: 100%;
-	margin-bottom: 4em;
+  function warn(format) {
+    {
+      for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+        args[_key - 1] = arguments[_key];
       }
 
-      .rule-property {
-        overflow-y: auto;
-        max-height: 10em;
+      printWarning('warn', format, args);
+    }
+  }
+  function error(format) {
+    {
+      for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
+        args[_key2 - 1] = arguments[_key2];
       }
 
-      .panel {
-        display: none;
-      }
+      printWarning('error', format, args);
+    }
+  }
 
-      .panel#workflow {
-        display: block;
-      }
+  function printWarning(level, format, args) {
+    // When changing this logic, you might want to also
+    // update consoleWithStackDev.www.js as well.
+    {
+      var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;
+      var stack = ReactDebugCurrentFrame.getStackAddendum();
 
-      .ruletable th {
-        width: 1px;
+      if (stack !== '') {
+        format += '%s';
+        args = args.concat([stack]);
       }
 
-      .rule-properties ul {
-        padding-left: 1.2em;
-      }
+      var argsWithFormat = args.map(function (item) {
+        return '' + item;
+      }); // Careful: RN currently depends on this prefix
 
-      #thumbnail-modal .modal-body {
-        overflow: auto;
-        text-align: center;
-      }
+      argsWithFormat.unshift('Warning: ' + format); // We intentionally don't use spread (or .apply) directly because it
+      // breaks IE9: https://github.com/facebook/react/issues/13610
+      // eslint-disable-next-line react-internal/no-production-logging
 
-      .category pre {
-        max-width: 20vw;
-        max-height: 10vh;
-      }
-	    
-      .modal-lg {
-    	max-width: 95%;
+      Function.prototype.apply.call(console[level], console, argsWithFormat);
+    }
+  }
+
+  var didWarnStateUpdateForUnmountedComponent = {};
+
+  function warnNoop(publicInstance, callerName) {
+    {
+      var _constructor = publicInstance.constructor;
+      var componentName = _constructor && (_constructor.displayName || _constructor.name) || 'ReactClass';
+      var warningKey = componentName + "." + callerName;
+
+      if (didWarnStateUpdateForUnmountedComponent[warningKey]) {
+        return;
       }
-    </style>
 
-  </head>
+      error("Can't call %s on a component that is not yet mounted. " + 'This is a no-op, but it might indicate a bug in your application. ' + 'Instead, assign to `this.state` directly or define a `state = {};` ' + 'class property with the desired state in the %s component.', callerName, componentName);
 
-  <body>
-    <div id="loading-screen">
-      <p class="animation">Loading Snakemake Report...</p>
-      <p id="jswarning">Please enable Javascript in your browser to see this report.</p>
-      <p id="info">Loading 150.6 kB. For large reports, this can take a while.</p>
-    </div>
+      didWarnStateUpdateForUnmountedComponent[warningKey] = true;
+    }
+  }
+  /**
+   * This is the abstract API for an update queue.
+   */
 
-    <nav class="navbar fixed-top navbar-dark bg-dark flex-md-nowrap p-0 shadow">
-      <a class="navbar-brand col-sm-3 col-md-2 mr-0" href="https://snakemake.readthedocs.io">Snakemake Report</a>
-      <div class="nav navbar-nav navbar-center" id="brand"></div>
-      <ul class="nav navbar-nav navbar-right" style="padding-right: 10px;">
-        <li class="text-white">Thu Nov 19 15:52:26 2020 CET</li>
-        <li><a class="text-white" href="https://snakemake.readthedocs.io">Snakemake 5.28.0+4.ga5c6f80b</a></li>
-      </ul>
-      <!--<input id="searchbar" class="invisible form-control form-control-dark w-100" type="text" placeholder="Search" aria-label="Search">-->
-    </nav>
-
-    <div class="container-fluid">
-      <div class="row">
-        <nav class="col-md-2 d-none d-md-block bg-light sidebar">
-          <div class="sidebar-sticky">
-            <ul class="nav flex-column">
-              <li class="nav-item">
-                <a class="nav-link active panel-link" data-panel="workflow" href="javascript:void(0)">
-                  <span data-feather="git-pull-request"></span>
-                  Workflow <span class="sr-only">(current)</span>
-                </a>
-              </li>
-              <li class="nav-item">
-                <a class="nav-link panel-link" data-panel="statistics" href="javascript:void(0)">
-                  <span data-feather="bar-chart-2"></span>
-                  Statistics
-                </a>
-              </li>
-            </ul>
-
-            <h5 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
-              <span class="d-flex align-items-center text-muted text-bold">
-                Results
-              </span>
-            </h5>
-            <ul class="nav flex-column mb-2">
-              <li class="nav-item">
-                <a class="nav-link panel-link" data-panel="f97e9da0e3b879f0a9df979ae260a5f7e1371edb127c1862d4f861981166cdc1" href="javascript:void(0)">
-                  <span data-feather="folder"></span>
-                  Other
-                </a>
-              </li>
-              <li class="nav-item">
-                <a class="nav-link panel-link" data-panel="25a8d45469d1048cbe3a77607bf15ac12b02c4575823590df089ad8e7dcdd36d" href="javascript:void(0)">
-                  <span data-feather="folder"></span>
-                  Step 1
-                </a>
-              </li>
-              <li class="nav-item">
-                <a class="nav-link panel-link" data-panel="649474af418cac5d8a42bd349856090ecd177c6cf970fbc0ca59b91ee20ff1d0" href="javascript:void(0)">
-                  <span data-feather="folder"></span>
-                  Step 2
-                </a>
-              </li>
-            </ul>
-          </div>
-        </nav>
-
-        <main role="main" class="col-md-9 ml-sm-auto col-lg-10 px-4">
-          <div class="panel" id="workflow">
-            <h2>Workflow</h2>
-
-            <p>This is the workflow description. Test reference <a class="reference external" href="javascript:show_panel(&quot;25a8d45469d1048cbe3a77607bf15ac12b02c4575823590df089ad8e7dcdd36d&quot;)">fig1.svg</a>.</p>
-
-
-            <div class="row justify-content-center">
-              <div class="col-xs-6">
-                <div id="rulegraph"></div>
-              </div>
-            </div>
-
-            <p>Click the nodes to obtain details about each step.</p>
-
-          </div>
-
-          <div class="panel category" id="f97e9da0e3b879f0a9df979ae260a5f7e1371edb127c1862d4f861981166cdc1">
-            <h2>Other</h2>
-            <table class="results-table table" data-category="f97e9da0e3b879f0a9df979ae260a5f7e1371edb127c1862d4f861981166cdc1" data-subcategory="f97e9da0e3b879f0a9df979ae260a5f7e1371edb127c1862d4f861981166cdc1"></table>
-          </div>  
-          <div class="panel category" id="25a8d45469d1048cbe3a77607bf15ac12b02c4575823590df089ad8e7dcdd36d">
-            <h2>Step 1</h2>
-            <table class="results-table table" data-category="25a8d45469d1048cbe3a77607bf15ac12b02c4575823590df089ad8e7dcdd36d" data-subcategory="f97e9da0e3b879f0a9df979ae260a5f7e1371edb127c1862d4f861981166cdc1"></table>
-          </div>  
-          <div class="panel category" id="649474af418cac5d8a42bd349856090ecd177c6cf970fbc0ca59b91ee20ff1d0">
-            <h2>Step 2</h2>
-            <h4>testmodel</h4>
-            <table class="results-table table" data-category="649474af418cac5d8a42bd349856090ecd177c6cf970fbc0ca59b91ee20ff1d0" data-subcategory="5f4dfa7204c97f0860300388c407e03ce73973c32c8006cb235c809832589fe6"></table>
-          </div>  
-
-          <div class="panel" id="statistics">
-            <h2>Statistics</h2>
-            If the workflow has been executed in cluster/cloud, runtimes include the waiting time in the queue.
-            <div class="row justify-content-center">
-              <div class="col-xs-6">
-                <div id="runtimes" class="plot"></div>
-              </div>
-              <div class="col-xs-6">
-                <div id="timeline" class="plot"></div>
-              </div>
-            </div>
-          </div>
-
-
-          <div class="panel" id="panel-loading-screen">
-            <p class="animation">Loading...</p>
-          </div>
-        </main>
-
-        <div id="thumbnail-modal" class="modal" tabindex="-1" role="dialog">
-          <div class="modal-dialog modal-lg" role="document">
-            <div class="modal-content">
-              <div class="modal-header">
-                <h5 class="modal-title"></h5>
-                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
-                  <span aria-hidden="true">&times;</span>
-                </button>
-              </div>
-              <div class="modal-body">
-                <img src="" alt="Thumbnail">
-              </div>
-              <div class="modal-footer">
-                <a class="btn btn-primary btn-download" role="button" href="#">Download original</a>
-              </div>
-            </div>
-          </div>
-        </div>
-
-        <div data-rule="a" class="modal rule-properties" tabindex="-1" role="dialog">
-          <div class="modal-dialog modal-lg" role="document">
-            <div class="modal-content">
-              <div class="modal-header">
-                <h5 class="modal-title">Rule a</h5>
-                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
-                  <span aria-hidden="true">&times;</span>
-                </button>
-              </div>
-              <div class="modal-body">
-                <table class="table w-auto table-sm table-borderless ruletable">
-                  <caption>Rule properties</caption>
-                  <tbody>
-                    <tr>
-                      <th scope="row">Jobs</th><td>1</td>
-                    </tr>
-
-                    <tr>
-                      <th scope="row" colspan=2>Input files</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        <ul>
-                            <li>test.0.out</li>
-                            <li>test.1.out</li>
-                            <li>test.2.out</li>
-                            <li>test.3.out</li>
-                            <li>test.4.out</li>
-                            <li>test.5.out</li>
-                            <li>test.6.out</li>
-                            <li>test.7.out</li>
-                            <li>test.8.out</li>
-                            <li>test.9.out</li>
-                        </ul>
-                      </td>
-                    </tr>
-
-                    <tr>
-                      <th scope="row" colspan=2>Output files</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        <ul>
-                            <li>fig1.svg</li>
-                        </ul>
-                      </td>
-                    </tr>
-
-
-
-                    <tr>
-                      <th scope="row" colspan=2>Code</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        <table class="sourcetable"><tr><td class="linenos"><div class="linenodiv"><pre>1</pre></div></td><td class="code"><div class="source"><pre><span></span><code>sleep <span class="sb">`</span>shuf -i <span class="m">1</span>-3 -n <span class="m">1</span><span class="sb">`</span><span class="p">;</span> cp data/fig1.svg <span class="o">{</span>output<span class="o">}</span>
-</code></pre></div>
-</td></tr></table>
-                      </td>
-                    </tr>
-                  </tbody>
-                </table>
-              </div>
-            </div>
-          </div>
-        </div>
-        <div data-rule="c" class="modal rule-properties" tabindex="-1" role="dialog">
-          <div class="modal-dialog modal-lg" role="document">
-            <div class="modal-content">
-              <div class="modal-header">
-                <h5 class="modal-title">Rule c</h5>
-                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
-                  <span aria-hidden="true">&times;</span>
-                </button>
-              </div>
-              <div class="modal-body">
-                <table class="table w-auto table-sm table-borderless ruletable">
-                  <caption>Rule properties</caption>
-                  <tbody>
-                    <tr>
-                      <th scope="row">Jobs</th><td>10</td>
-                    </tr>
-
-
-                    <tr>
-                      <th scope="row" colspan=2>Output files</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        <ul>
-                            <li>test.{i}.out</li>
-                        </ul>
-                      </td>
-                    </tr>
-
-                    <tr>
-                      <th scope="row" colspan=2>Container image</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        docker://continuumio/miniconda3:4.4.10
-                      </td>
-                    </tr>
-
-
-                    <tr>
-                      <th scope="row" colspan=2>Code</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        <table class="sourcetable"><tr><td class="linenos"><div class="linenodiv"><pre>1</pre></div></td><td class="code"><div class="source"><pre><span></span><code>sleep <span class="sb">`</span>shuf -i <span class="m">1</span>-3 -n <span class="m">1</span><span class="sb">`</span><span class="p">;</span> touch <span class="o">{</span>output<span class="o">}</span>
-</code></pre></div>
-</td></tr></table>
-                      </td>
-                    </tr>
-                  </tbody>
-                </table>
-              </div>
-            </div>
-          </div>
-        </div>
-        <div data-rule="d" class="modal rule-properties" tabindex="-1" role="dialog">
-          <div class="modal-dialog modal-lg" role="document">
-            <div class="modal-content">
-              <div class="modal-header">
-                <h5 class="modal-title">Rule d</h5>
-                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
-                  <span aria-hidden="true">&times;</span>
-                </button>
-              </div>
-              <div class="modal-body">
-                <table class="table w-auto table-sm table-borderless ruletable">
-                  <caption>Rule properties</caption>
-                  <tbody>
-                    <tr>
-                      <th scope="row">Jobs</th><td>1</td>
-                    </tr>
-
-
-                    <tr>
-                      <th scope="row" colspan=2>Output files</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        <ul>
-                            <li>test.csv</li>
-                        </ul>
-                      </td>
-                    </tr>
-
-
-
-                  </tbody>
-                </table>
-              </div>
-            </div>
-          </div>
-        </div>
-        <div data-rule="e" class="modal rule-properties" tabindex="-1" role="dialog">
-          <div class="modal-dialog modal-lg" role="document">
-            <div class="modal-content">
-              <div class="modal-header">
-                <h5 class="modal-title">Rule e</h5>
-                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
-                  <span aria-hidden="true">&times;</span>
-                </button>
-              </div>
-              <div class="modal-body">
-                <table class="table w-auto table-sm table-borderless ruletable">
-                  <caption>Rule properties</caption>
-                  <tbody>
-                    <tr>
-                      <th scope="row">Jobs</th><td>1</td>
-                    </tr>
-
-
-                    <tr>
-                      <th scope="row" colspan=2>Output files</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        <ul>
-                            <li>testdir</li>
-                        </ul>
-                      </td>
-                    </tr>
-
-
-
-                    <tr>
-                      <th scope="row" colspan=2>Code</th>
-                    </tr>
-                    <tr>
-                      <td class="rule-property" colspan=2>
-                        <table class="sourcetable"><tr><td class="linenos"><div class="linenodiv"><pre>1
-2
-3
-4
-5
-6</pre></div></td><td class="code"><div class="source"><pre><span></span><code>        mkdir <span class="o">{</span>output<span class="o">}</span>
-        <span class="k">for</span> x in <span class="m">1</span> <span class="m">2</span> <span class="m">3</span>
-        <span class="k">do</span> 
-            <span class="nb">echo</span> <span class="nv">$x</span> &gt; testdir/<span class="nv">$x</span>.txt
-        <span class="k">done</span>
-        
-</code></pre></div>
-</td></tr></table>
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n={placement:this._getPlacement(),modifiers:{offset:t,flip:{enabled:this._config.flip},preventOverflow:{boundariesElement:this._config.boundary}}};return"static"===this._config.display&&(n.modifiers.applyStyle={enabled:!1}),n},l._jQueryInterface=function(e){return this.each(function(){var t=mt(this).data(vt);if(t||(t=new l(this,"object"==typeof e?e:null),mt(this).data(vt,t)),"string"==typeof e){if("undefined"==typeof t[e])throw new TypeError('No method named "'+e+'"');t[e]()}})},l._clearMenus=function(t){if(!t||3!==t.which&&("keyup"!==t.type||9===t.which))for(var e=mt.makeArray(mt(kt)),n=0;n<e.length;n++){var i=l._getParentFromElement(e[n]),r=mt(e[n]).data(vt),s={relatedTarget:e[n]};if(r){var o=r._menu;if(mt(i).hasClass(Dt)&&!(t&&("click"===t.type&&/input|textarea/i.test(t.target.tagName)||"keyup"===t.type&&9===t.which)&&mt.contains(i,t.target))){var a=mt.Event(It.HIDE,s);mt(i).trigger(a),a.isDefaultPrevented()||("ontouchstart"in document.documentElement&&mt(document.body).children().off("mouseover",null,mt.noop),e[n].setAttribute("aria-expanded","false"),mt(o).removeClass(Dt),mt(i).removeClass(Dt).trigger(mt.Event(It.HIDDEN,s)))}}}},l._getParentFromElement=function(t){var e,n=Cn.getSelectorFromElement(t);return n&&(e=mt(n)[0]),e||t.parentNode},l._dataApiKeydownHandler=function(t){if((/input|textarea/i.test(t.target.tagName)?!(32===t.which||27!==t.which&&(40!==t.which&&38!==t.which||mt(t.target).closest(Lt).length)):Ct.test(t.which))&&(t.preventDefault(),t.stopPropagation(),!this.disabled&&!mt(this).hasClass(At))){var e=l._getParentFromElement(this),n=mt(e).hasClass(Dt);if((n||27===t.which&&32===t.which)&&(!n||27!==t.which&&32!==t.which)){var i=mt(e).find(Rt).get();if(0!==i.length){var r=i.indexOf(t.target);38===t.which&&0<r&&r--,40===t.which&&r<i.length-1&&r++,r<0&&(r=0),i[r].focus()}}else{if(27===t.which){var s=mt(e).find(kt)[0];mt(s).trigger("focus")}mt(this).trigger("click")}}},o(l,null,[{key:"VERSION",get:function(){return"4.1.1"}},{key:"Default",get:function(){return Ft}},{key:"DefaultType",get:function(){return Vt}}]),l}(),mt(document).on(It.KEYDOWN_DATA_API,kt,Qt._dataApiKeydownHandler).on(It.KEYDOWN_DATA_API,Lt,Qt._dataApiKeydownHandler).on(It.CLICK_DATA_API+" "+It.KEYUP_DATA_API,Qt._clearMenus).on(It.CLICK_DATA_API,kt,function(t){t.preventDefault(),t.stopPropagation(),Qt._jQueryInterface.call(mt(this),"toggle")}).on(It.CLICK_DATA_API,Pt,function(t){t.stopPropagation()}),mt.fn[pt]=Qt._jQueryInterface,mt.fn[pt].Constructor=Qt,mt.fn[pt].noConflict=function(){return mt.fn[pt]=Tt,Qt._jQueryInterface},Qt),wn=(Yt="modal",qt="."+(Gt="bs.modal"),zt=(Bt=e).fn[Yt],Xt={backdrop:!0,keyboard:!0,focus:!0,show:!0},Jt={backdrop:"(boolean|string)",keyboard:"boolean",focus:"boolean",show:"boolean"},Zt={HIDE:"hide"+qt,HIDDEN:"hidden"+qt,SHOW:"show"+qt,SHOWN:"shown"+qt,FOCUSIN:"focusin"+qt,RESIZE:"resize"+qt,CLICK_DISMISS:"click.dismiss"+qt,KEYDOWN_DISMISS:"keydown.dismiss"+qt,MOUSEUP_DISMISS:"mouseup.dismiss"+qt,MOUSEDOWN_DISMISS:"mousedown.dismiss"+qt,CLICK_DATA_API:"click"+qt+".data-api"},$t="modal-scrollbar-measure",te="modal-backdrop",ee="modal-open",ne="fade",ie="show",re={DIALOG:".modal-dialog",DATA_TOGGLE:'[data-toggle="modal"]',DATA_DISMISS:'[data-dismiss="modal"]',FIXED_CONTENT:".fixed-top, .fixed-bottom, .is-fixed, .sticky-top",STICKY_CONTENT:".sticky-top",NAVBAR_TOGGLER:".navbar-toggler"},se=function(){function r(t,e){this._config=this._getConfig(e),this._element=t,this._dialog=Bt(t).find(re.DIALOG)[0],this._backdrop=null,this._isShown=!1,this._isBodyOverflowing=!1,this._ignoreBackdropClick=!1,this._scrollbarWidth=0}var t=r.prototype;return t.toggle=function(t){return this._isShown?this.hide():this.show(t)},t.show=function(t){var e=this;if(!this._isTransitioning&&!this._isShown){Bt(this._element).hasClass(ne)&&(this._isTransitioning=!0);var n=Bt.Event(Zt.SHOW,{relatedTarget:t});Bt(this._element).trigger(n),this._isShown||n.isDefaultPrevented()||(this._isShown=!0,this._checkScrollbar(),this._setScrollbar(),this._adjustDialog(),Bt(document.body).addClass(ee),this._setEscapeEvent(),this._setResizeEvent(),Bt(this._element).on(Zt.CLICK_DISMISS,re.DATA_DISMISS,function(t){return e.hide(t)}),Bt(this._dialog).on(Zt.MOUSEDOWN_DISMISS,function(){Bt(e._element).one(Zt.MOUSEUP_DISMISS,function(t){Bt(t.target).is(e._element)&&(e._ignoreBackdropClick=!0)})}),this._showBackdrop(function(){return e._showElement(t)}))}},t.hide=function(t){var e=this;if(t&&t.preventDefault(),!this._isTransitioning&&this._isShown){var n=Bt.Event(Zt.HIDE);if(Bt(this._element).trigger(n),this._isShown&&!n.isDefaultPrevented()){this._isShown=!1;var i=Bt(this._element).hasClass(ne);if(i&&(this._isTransitioning=!0),this._setEscapeEvent(),this._setResizeEvent(),Bt(document).off(Zt.FOCUSIN),Bt(this._element).removeClass(ie),Bt(this._element).off(Zt.CLICK_DISMISS),Bt(this._dialog).off(Zt.MOUSEDOWN_DISMISS),i){var r=Cn.getTransitionDurationFromElement(this._element);Bt(this._element).one(Cn.TRANSITION_END,function(t){return e._hideModal(t)}).emulateTransitionEnd(r)}else this._hideModal()}}},t.dispose=function(){Bt.removeData(this._element,Gt),Bt(window,document,this._element,this._backdrop).off(qt),this._config=null,this._element=null,this._dialog=null,this._backdrop=null,this._isShown=null,this._isBodyOverflowing=null,this._ignoreBackdropClick=null,this._scrollbarWidth=null},t.handleUpdate=function(){this._adjustDialog()},t._getConfig=function(t){return t=h({},Xt,t),Cn.typeCheckConfig(Yt,t,Jt),t},t._showElement=function(t){var e=this,n=Bt(this._element).hasClass(ne);this._element.parentNode&&this._element.parentNode.nodeType===Node.ELEMENT_NODE||document.body.appendChild(this._element),this._element.style.display="block",this._element.removeAttribute("aria-hidden"),this._element.scrollTop=0,n&&Cn.reflow(this._element),Bt(this._element).addClass(ie),this._config.focus&&this._enforceFocus();var i=Bt.Event(Zt.SHOWN,{relatedTarget:t}),r=function(){e._config.focus&&e._element.focus(),e._isTransitioning=!1,Bt(e._element).trigger(i)};if(n){var s=Cn.getTransitionDurationFromElement(this._element);Bt(this._dialog).one(Cn.TRANSITION_END,r).emulateTransitionEnd(s)}else r()},t._enforceFocus=function(){var e=this;Bt(document).off(Zt.FOCUSIN).on(Zt.FOCUSIN,function(t){document!==t.target&&e._element!==t.target&&0===Bt(e._element).has(t.target).length&&e._element.focus()})},t._setEscapeEvent=function(){var e=this;this._isShown&&this._config.keyboard?Bt(this._element).on(Zt.KEYDOWN_DISMISS,function(t){27===t.which&&(t.preventDefault(),e.hide())}):this._isShown||Bt(this._element).off(Zt.KEYDOWN_DISMISS)},t._setResizeEvent=function(){var e=this;this._isShown?Bt(window).on(Zt.RESIZE,function(t){return e.handleUpdate(t)}):Bt(window).off(Zt.RESIZE)},t._hideModal=function(){var t=this;this._element.style.display="none",this._element.setAttribute("aria-hidden",!0),this._isTransitioning=!1,this._showBackdrop(function(){Bt(document.body).removeClass(ee),t._resetAdjustments(),t._resetScrollbar(),Bt(t._element).trigger(Zt.HIDDEN)})},t._removeBackdrop=function(){this._backdrop&&(Bt(this._backdrop).remove(),this._backdrop=null)},t._showBackdrop=function(t){var e=this,n=Bt(this._element).hasClass(ne)?ne:"";if(this._isShown&&this._config.backdrop){if(this._backdrop=document.createElement("div"),this._backdrop.className=te,n&&Bt(this._backdrop).addClass(n),Bt(this._backdrop).appendTo(document.body),Bt(this._element).on(Zt.CLICK_DISMISS,function(t){e._ignoreBackdropClick?e._ignoreBackdropClick=!1:t.target===t.currentTarget&&("static"===e._config.backdrop?e._element.focus():e.hide())}),n&&Cn.reflow(this._backdrop),Bt(this._backdrop).addClass(ie),!t)return;if(!n)return void t();var i=Cn.getTransitionDurationFromElement(this._backdrop);Bt(this._backdrop).one(Cn.TRANSITION_END,t).emulateTransitionEnd(i)}else if(!this._isShown&&this._backdrop){Bt(this._backdrop).removeClass(ie);var r=function(){e._removeBackdrop(),t&&t()};if(Bt(this._element).hasClass(ne)){var s=Cn.getTransitionDurationFromElement(this._backdrop);Bt(this._backdrop).one(Cn.TRANSITION_END,r).emulateTransitionEnd(s)}else r()}else t&&t()},t._adjustDialog=function(){var t=this._element.scrollHeight>document.documentElement.clientHeight;!this._isBodyOverflowing&&t&&(this._element.style.paddingLeft=this._scrollbarWidth+"px"),this._isBodyOverflowing&&!t&&(this._element.style.paddingRight=this._scrollbarWidth+"px")},t._resetAdjustments=function(){this._element.style.paddingLeft="",this._element.style.paddingRight=""},t._checkScrollbar=function(){var t=document.body.getBoundingClientRect();this._isBodyOverflowing=t.left+t.right<window.innerWidth,this._scrollbarWidth=this._getScrollbarWidth()},t._setScrollbar=function(){var r=this;if(this._isBodyOverflowing){Bt(re.FIXED_CONTENT).each(function(t,e){var n=Bt(e)[0].style.paddingRight,i=Bt(e).css("padding-right");Bt(e).data("padding-right",n).css("padding-right",parseFloat(i)+r._scrollbarWidth+"px")}),Bt(re.STICKY_CONTENT).each(function(t,e){var n=Bt(e)[0].style.marginRight,i=Bt(e).css("margin-right");Bt(e).data("margin-right",n).css("margin-right",parseFloat(i)-r._scrollbarWidth+"px")}),Bt(re.NAVBAR_TOGGLER).each(function(t,e){var n=Bt(e)[0].style.marginRight,i=Bt(e).css("margin-right");Bt(e).data("margin-right",n).css("margin-right",parseFloat(i)+r._scrollbarWidth+"px")});var t=document.body.style.paddingRight,e=Bt(document.body).css("padding-right");Bt(document.body).data("padding-right",t).css("padding-right",parseFloat(e)+this._scrollbarWidth+"px")}},t._resetScrollbar=function(){Bt(re.FIXED_CONTENT).each(function(t,e){var n=Bt(e).data("padding-right");"undefined"!=typeof n&&Bt(e).css("padding-right",n).removeData("padding-right")}),Bt(re.STICKY_CONTENT+", "+re.NAVBAR_TOGGLER).each(function(t,e){var n=Bt(e).data("margin-right");"undefined"!=typeof n&&Bt(e).css("margin-right",n).removeData("margin-right")});var t=Bt(document.body).data("padding-right");"undefined"!=typeof t&&Bt(document.body).css("padding-right",t).removeData("padding-right")},t._getScrollbarWidth=function(){var t=document.createElement("div");t.className=$t,document.body.appendChild(t);var e=t.getBoundingClientRect().width-t.clientWidth;return document.body.removeChild(t),e},r._jQueryInterface=function(n,i){return this.each(function(){var t=Bt(this).data(Gt),e=h({},Xt,Bt(this).data(),"object"==typeof n&&n?n:{});if(t||(t=new r(this,e),Bt(this).data(Gt,t)),"string"==typeof n){if("undefined"==typeof t[n])throw new TypeError('No method named "'+n+'"');t[n](i)}else e.show&&t.show(i)})},o(r,null,[{key:"VERSION",get:function(){return"4.1.1"}},{key:"Default",get:function(){return Xt}}]),r}(),Bt(document).on(Zt.CLICK_DATA_API,re.DATA_TOGGLE,function(t){var e,n=this,i=Cn.getSelectorFromElement(this);i&&(e=Bt(i)[0]);var r=Bt(e).data(Gt)?"toggle":h({},Bt(e).data(),Bt(this).data());"A"!==this.tagName&&"AREA"!==this.tagName||t.preventDefault();var s=Bt(e).one(Zt.SHOW,function(t){t.isDefaultPrevented()||s.one(Zt.HIDDEN,function(){Bt(n).is(":visible")&&n.focus()})});se._jQueryInterface.call(Bt(e),r,this)}),Bt.fn[Yt]=se._jQueryInterface,Bt.fn[Yt].Constructor=se,Bt.fn[Yt].noConflict=function(){return Bt.fn[Yt]=zt,se._jQueryInterface},se),Nn=(ae="tooltip",he="."+(le="bs.tooltip"),ce=(oe=e).fn[ae],ue="bs-tooltip",fe=new RegExp("(^|\\s)"+ue+"\\S+","g"),ge={animation:!0,template:'<div class="tooltip" role="tooltip"><div class="arrow"></div><div class="tooltip-inner"></div></div>',trigger:"hover focus",title:"",delay:0,html:!(_e={AUTO:"auto",TOP:"top",RIGHT:"right",BOTTOM:"bottom",LEFT:"left"}),selector:!(de={animation:"boolean",template:"string",title:"(string|element|function)",trigger:"string",delay:"(number|object)",html:"boolean",selector:"(string|boolean)",placement:"(string|function)",offset:"(number|string)",container:"(string|element|boolean)",fallbackPlacement:"(string|array)",boundary:"(string|element)"}),placement:"top",offset:0,container:!1,fallbackPlacement:"flip",boundary:"scrollParent"},pe="out",ve={HIDE:"hide"+he,HIDDEN:"hidden"+he,SHOW:(me="show")+he,SHOWN:"shown"+he,INSERTED:"inserted"+he,CLICK:"click"+he,FOCUSIN:"focusin"+he,FOCUSOUT:"focusout"+he,MOUSEENTER:"mouseenter"+he,MOUSELEAVE:"mouseleave"+he},Ee="fade",ye="show",Te=".tooltip-inner",Ce=".arrow",Ie="hover",Ae="focus",De="click",be="manual",Se=function(){function i(t,e){if("undefined"==typeof c)throw new TypeError("Bootstrap tooltips require Popper.js (https://popper.js.org)");this._isEnabled=!0,this._timeout=0,this._hoverState="",this._activeTrigger={},this._popper=null,this.element=t,this.config=this._getConfig(e),this.tip=null,this._setListeners()}var t=i.prototype;return t.enable=function(){this._isEnabled=!0},t.disable=function(){this._isEnabled=!1},t.toggleEnabled=function(){this._isEnabled=!this._isEnabled},t.toggle=function(t){if(this._isEnabled)if(t){var e=this.constructor.DATA_KEY,n=oe(t.currentTarget).data(e);n||(n=new this.constructor(t.currentTarget,this._getDelegateConfig()),oe(t.currentTarget).data(e,n)),n._activeTrigger.click=!n._activeTrigger.click,n._isWithActiveTrigger()?n._enter(null,n):n._leave(null,n)}else{if(oe(this.getTipElement()).hasClass(ye))return void this._leave(null,this);this._enter(null,this)}},t.dispose=function(){clearTimeout(this._timeout),oe.removeData(this.element,this.constructor.DATA_KEY),oe(this.element).off(this.constructor.EVENT_KEY),oe(this.element).closest(".modal").off("hide.bs.modal"),this.tip&&oe(this.tip).remove(),this._isEnabled=null,this._timeout=null,this._hoverState=null,(this._activeTrigger=null)!==this._popper&&this._popper.destroy(),this._popper=null,this.element=null,this.config=null,this.tip=null},t.show=function(){var e=this;if("none"===oe(this.element).css("display"))throw new Error("Please use show on visible elements");var t=oe.Event(this.constructor.Event.SHOW);if(this.isWithContent()&&this._isEnabled){oe(this.element).trigger(t);var n=oe.contains(this.element.ownerDocument.documentElement,this.element);if(t.isDefaultPrevented()||!n)return;var i=this.getTipElement(),r=Cn.getUID(this.constructor.NAME);i.setAttribute("id",r),this.element.setAttribute("aria-describedby",r),this.setContent(),this.config.animation&&oe(i).addClass(Ee);var s="function"==typeof this.config.placement?this.config.placement.call(this,i,this.element):this.config.placement,o=this._getAttachment(s);this.addAttachmentClass(o);var a=!1===this.config.container?document.body:oe(this.config.container);oe(i).data(this.constructor.DATA_KEY,this),oe.contains(this.element.ownerDocument.documentElement,this.tip)||oe(i).appendTo(a),oe(this.element).trigger(this.constructor.Event.INSERTED),this._popper=new c(this.element,i,{placement:o,modifiers:{offset:{offset:this.config.offset},flip:{behavior:this.config.fallbackPlacement},arrow:{element:Ce},preventOverflow:{boundariesElement:this.config.boundary}},onCreate:function(t){t.originalPlacement!==t.placement&&e._handlePopperPlacementChange(t)},onUpdate:function(t){e._handlePopperPlacementChange(t)}}),oe(i).addClass(ye),"ontouchstart"in document.documentElement&&oe(document.body).children().on("mouseover",null,oe.noop);var l=function(){e.config.animation&&e._fixTransition();var t=e._hoverState;e._hoverState=null,oe(e.element).trigger(e.constructor.Event.SHOWN),t===pe&&e._leave(null,e)};if(oe(this.tip).hasClass(Ee)){var h=Cn.getTransitionDurationFromElement(this.tip);oe(this.tip).one(Cn.TRANSITION_END,l).emulateTransitionEnd(h)}else l()}},t.hide=function(t){var e=this,n=this.getTipElement(),i=oe.Event(this.constructor.Event.HIDE),r=function(){e._hoverState!==me&&n.parentNode&&n.parentNode.removeChild(n),e._cleanTipClass(),e.element.removeAttribute("aria-describedby"),oe(e.element).trigger(e.constructor.Event.HIDDEN),null!==e._popper&&e._popper.destroy(),t&&t()};if(oe(this.element).trigger(i),!i.isDefaultPrevented()){if(oe(n).removeClass(ye),"ontouchstart"in document.documentElement&&oe(document.body).children().off("mouseover",null,oe.noop),this._activeTrigger[De]=!1,this._activeTrigger[Ae]=!1,this._activeTrigger[Ie]=!1,oe(this.tip).hasClass(Ee)){var s=Cn.getTransitionDurationFromElement(n);oe(n).one(Cn.TRANSITION_END,r).emulateTransitionEnd(s)}else r();this._hoverState=""}},t.update=function(){null!==this._popper&&this._popper.scheduleUpdate()},t.isWithContent=function(){return Boolean(this.getTitle())},t.addAttachmentClass=function(t){oe(this.getTipElement()).addClass(ue+"-"+t)},t.getTipElement=function(){return this.tip=this.tip||oe(this.config.template)[0],this.tip},t.setContent=function(){var t=oe(this.getTipElement());this.setElementContent(t.find(Te),this.getTitle()),t.removeClass(Ee+" "+ye)},t.setElementContent=function(t,e){var n=this.config.html;"object"==typeof e&&(e.nodeType||e.jquery)?n?oe(e).parent().is(t)||t.empty().append(e):t.text(oe(e).text()):t[n?"html":"text"](e)},t.getTitle=function(){var t=this.element.getAttribute("data-original-title");return t||(t="function"==typeof this.config.title?this.config.title.call(this.element):this.config.title),t},t._getAttachment=function(t){return _e[t.toUpperCase()]},t._setListeners=function(){var i=this;this.config.trigger.split(" ").forEach(function(t){if("click"===t)oe(i.element).on(i.constructor.Event.CLICK,i.config.selector,function(t){return i.toggle(t)});else if(t!==be){var e=t===Ie?i.constructor.Event.MOUSEENTER:i.constructor.Event.FOCUSIN,n=t===Ie?i.constructor.Event.MOUSELEAVE:i.constructor.Event.FOCUSOUT;oe(i.element).on(e,i.config.selector,function(t){return i._enter(t)}).on(n,i.config.selector,function(t){return i._leave(t)})}oe(i.element).closest(".modal").on("hide.bs.modal",function(){return i.hide()})}),this.config.selector?this.config=h({},this.config,{trigger:"manual",selector:""}):this._fixTitle()},t._fixTitle=function(){var t=typeof this.element.getAttribute("data-original-title");(this.element.getAttribute("title")||"string"!==t)&&(this.element.setAttribute("data-original-title",this.element.getAttribute("title")||""),this.element.setAttribute("title",""))},t._enter=function(t,e){var n=this.constructor.DATA_KEY;(e=e||oe(t.currentTarget).data(n))||(e=new 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i=this._ids[t];this._dists[i]>r&&(n[e++]=i,r=this._dists[i])}return this.hull=n.subarray(0,e),this.triangles=new Uint32Array(0),void(this.halfedges=new Uint32Array(0))}if(TM(m,v,y,_,b,w)){const t=d,n=y,e=_;d=p,y=b,_=w,p=t,b=n,w=e}const A=function(t,n,e,r,i,a){const u=e-t,o=r-n,s=i-t,l=a-n,c=u*u+o*o,f=s*s+l*l,h=.5/(u*l-o*s);return{x:t+(l*c-o*f)*h,y:n+(u*f-s*c)*h}}(m,v,y,_,b,w);this._cx=A.x,this._cy=A.y;for(let n=0;n<a;n++)this._dists[n]=SM(t[2*n],t[2*n+1],A.x,A.y);OM(this._ids,this._dists,0,a-1),this._hullStart=h;let M=3;e[h]=n[p]=d,e[d]=n[h]=p,e[p]=n[d]=h,r[h]=0,r[d]=1,r[p]=2,i.fill(-1),i[this._hashKey(m,v)]=h,i[this._hashKey(y,_)]=d,i[this._hashKey(b,w)]=p,this.trianglesLen=0,this._addTriangle(h,d,p,-1,-1,-1);for(let a,u,o=0;o<this._ids.length;o++){const s=this._ids[o],l=t[2*s],c=t[2*s+1];if(o>0&&Math.abs(l-a)<=DM&&Math.abs(c-u)<=DM)continue;if(a=l,u=c,s===h||s===d||s===p)continue;let f=0;for(let t=0,n=this._hashKey(l,c);t<this._hashSize&&(-1===(f=i[(n+t)%this._hashSize])||f===e[f]);t++);let g,m=f=n[f];for(;g=e[m],!TM(l,c,t[2*m],t[2*m+1],t[2*g],t[2*g+1]);)if((m=g)===f){m=-1;break}if(-1===m)continue;let v=this._addTriangle(m,s,e[m],-1,-1,r[m]);r[s]=this._legalize(v+2),r[m]=v,M++;let y=e[m];for(;g=e[y],TM(l,c,t[2*y],t[2*y+1],t[2*g],t[2*g+1]);)v=this._addTriangle(y,s,g,r[s],-1,r[y]),r[s]=this._legalize(v+2),e[y]=y,M--,y=g;if(m===f)for(;TM(l,c,t[2*(g=n[m])],t[2*g+1],t[2*m],t[2*m+1]);)v=this._addTriangle(g,s,m,-1,r[m],r[g]),this._legalize(v+2),r[g]=v,e[m]=m,M--,m=g;this._hullStart=n[s]=m,e[m]=n[y]=s,e[s]=y,i[this._hashKey(l,c)]=s,i[this._hashKey(t[2*m],t[2*m+1])]=m}this.hull=new Uint32Array(M);for(let t=0,n=this._hullStart;t<M;t++)this.hull[t]=n,n=e[n];this.triangles=this._triangles.subarray(0,this.trianglesLen),this.halfedges=this._halfedges.subarray(0,this.trianglesLen)}_hashKey(t,n){return Math.floor(function(t,n){const e=t/(Math.abs(t)+Math.abs(n));return(n>0?3-e:1+e)/4}(t-this._cx,n-this._cy)*this._hashSize)%this._hashSize}_legalize(t){const{_triangles:n,_halfedges:e,coords:r}=this;let i=0,a=0;for(;;){const u=e[t],o=t-t%3;if(a=o+(t+2)%3,-1===u){if(0===i)break;t=CM[--i];continue}const s=u-u%3,l=o+(t+1)%3,c=s+(u+2)%3,f=n[a],h=n[t],d=n[l],p=n[c];if(zM(r[2*f],r[2*f+1],r[2*h],r[2*h+1],r[2*d],r[2*d+1],r[2*p],r[2*p+1])){n[t]=p,n[u]=f;const r=e[c];if(-1===r){let n=this._hullStart;do{if(this._hullTri[n]===c){this._hullTri[n]=t;break}n=this._hullPrev[n]}while(n!==this._hullStart)}this._link(t,r),this._link(u,e[a]),this._link(a,c);const o=s+(u+1)%3;i<CM.length&&(CM[i++]=o)}else{if(0===i)break;t=CM[--i]}}return a}_link(t,n){this._halfedges[t]=n,-1!==n&&(this._halfedges[n]=t)}_addTriangle(t,n,e,r,i,a){const u=this.trianglesLen;return this._triangles[u]=t,this._triangles[u+1]=n,this._triangles[u+2]=e,this._link(u,r),this._link(u+1,i),this._link(u+2,a),this.trianglesLen+=3,u}}function SM(t,n,e,r){const i=t-e,a=n-r;return i*i+a*a}function BM(t,n,e,r,i,a){const u=(r-n)*(i-t),o=(e-t)*(a-n);return Math.abs(u-o)>=33306690738754716e-32*Math.abs(u+o)?u-o:0}function TM(t,n,e,r,i,a){return(BM(i,a,t,n,e,r)||BM(t,n,e,r,i,a)||BM(e,r,i,a,t,n))<0}function zM(t,n,e,r,i,a,u,o){const s=t-u,l=n-o,c=e-u,f=r-o,h=i-u,d=a-o,p=c*c+f*f,g=h*h+d*d;return s*(f*g-p*d)-l*(c*g-p*h)+(s*s+l*l)*(c*d-f*h)<0}function NM(t,n,e,r,i,a){const u=e-t,o=r-n,s=i-t,l=a-n,c=u*u+o*o,f=s*s+l*l,h=.5/(u*l-o*s),d=(l*c-o*f)*h,p=(u*f-s*c)*h;return d*d+p*p}function OM(t,n,e,r){if(r-e<=20)for(let i=e+1;i<=r;i++){const r=t[i],a=n[r];let u=i-1;for(;u>=e&&n[t[u]]>a;)t[u+1]=t[u--];t[u+1]=r}else{let i=e+1,a=r;RM(t,e+r>>1,i),n[t[e]]>n[t[r]]&&RM(t,e,r),n[t[i]]>n[t[r]]&&RM(t,i,r),n[t[e]]>n[t[i]]&&RM(t,e,i);const u=t[i],o=n[u];for(;;){do{i++}while(n[t[i]]<o);do{a--}while(n[t[a]]>o);if(a<i)break;RM(t,i,a)}t[e+1]=t[a],t[a]=u,r-i+1>=a-e?(OM(t,n,i,r),OM(t,n,e,a-1)):(OM(t,n,e,a-1),OM(t,n,i,r))}}function RM(t,n,e){const r=t[n];t[n]=t[e],t[e]=r}function qM(t){return t[0]}function LM(t){return t[1]}const PM=1e-6;class UM{constructor(){this._x0=this._y0=this._x1=this._y1=null,this._=""}moveTo(t,n){this._+=`M${this._x0=this._x1=+t},${this._y0=this._y1=+n}`}closePath(){null!==this._x1&&(this._x1=this._x0,this._y1=this._y0,this._+="Z")}lineTo(t,n){this._+=`L${this._x1=+t},${this._y1=+n}`}arc(t,n,e){const r=(t=+t)+(e=+e),i=n=+n;if(e<0)throw new Error("negative radius");null===this._x1?this._+=`M${r},${i}`:(Math.abs(this._x1-r)>PM||Math.abs(this._y1-i)>PM)&&(this._+="L"+r+","+i),e&&(this._+=`A${e},${e},0,1,1,${t-e},${n}A${e},${e},0,1,1,${this._x1=r},${this._y1=i}`)}rect(t,n,e,r){this._+=`M${this._x0=this._x1=+t},${this._y0=this._y1=+n}h${+e}v${+r}h${-e}Z`}value(){return this._||null}}class $M{constructor(){this._=[]}moveTo(t,n){this._.push([t,n])}closePath(){this._.push(this._[0].slice())}lineTo(t,n){this._.push([t,n])}value(){return this._.length?this._:null}}class jM{constructor(t,[n,e,r,i]=[0,0,960,500]){if(!((r=+r)>=(n=+n)&&(i=+i)>=(e=+e)))throw new Error("invalid bounds");this.delaunay=t,this._circumcenters=new Float64Array(2*t.points.length),this.vectors=new Float64Array(2*t.points.length),this.xmax=r,this.xmin=n,this.ymax=i,this.ymin=e,this._init()}update(){return this.delaunay.update(),this._init(),this}_init(){const{delaunay:{points:t,hull:n,triangles:e},vectors:r}=this,i=this.circumcenters=this._circumcenters.subarray(0,e.length/3*2);for(let n,r,a=0,u=0,o=e.length;a<o;a+=3,u+=2){const o=2*e[a],s=2*e[a+1],l=2*e[a+2],c=t[o],f=t[o+1],h=t[s],d=t[s+1],p=t[l],g=t[l+1],m=h-c,v=d-f,y=p-c,_=g-f,x=m*m+v*v,b=y*y+_*_,w=2*(m*_-v*y);if(w)if(Math.abs(w)<1e-8)n=(c+p)/2,r=(f+g)/2;else{const t=1/w;n=c+(_*x-v*b)*t,r=f+(m*b-y*x)*t}else n=(c+p)/2-1e8*_,r=(f+g)/2+1e8*y;i[u]=n,i[u+1]=r}let a,u,o,s=n[n.length-1],l=4*s,c=t[2*s],f=t[2*s+1];r.fill(0);for(let e=0;e<n.length;++e)a=l,u=c,o=f,l=4*(s=n[e]),c=t[2*s],f=t[2*s+1],r[a+2]=r[l]=o-f,r[a+3]=r[l+1]=c-u}render(t){const n=null==t?t=new UM:void 0,{delaunay:{halfedges:e,inedges:r,hull:i},circumcenters:a,vectors:u}=this;if(i.length<=1)return null;for(let n=0,r=e.length;n<r;++n){const r=e[n];if(r<n)continue;const i=2*Math.floor(n/3),u=2*Math.floor(r/3),o=a[i],s=a[i+1],l=a[u],c=a[u+1];this._renderSegment(o,s,l,c,t)}let o,s=i[i.length-1];for(let n=0;n<i.length;++n){o=s,s=i[n];const e=2*Math.floor(r[s]/3),l=a[e],c=a[e+1],f=4*o,h=this._project(l,c,u[f+2],u[f+3]);h&&this._renderSegment(l,c,h[0],h[1],t)}return n&&n.value()}renderBounds(t){const n=null==t?t=new UM:void 0;return t.rect(this.xmin,this.ymin,this.xmax-this.xmin,this.ymax-this.ymin),n&&n.value()}renderCell(t,n){const e=null==n?n=new UM:void 0,r=this._clip(t);if(null===r)return;n.moveTo(r[0],r[1]);let i=r.length;for(;r[0]===r[i-2]&&r[1]===r[i-1]&&i>1;)i-=2;for(let t=2;t<i;t+=2)r[t]===r[t-2]&&r[t+1]===r[t-1]||n.lineTo(r[t],r[t+1]);return n.closePath(),e&&e.value()}*cellPolygons(){const{delaunay:{points:t}}=this;for(let n=0,e=t.length/2;n<e;++n){const t=this.cellPolygon(n);t&&(yield t)}}cellPolygon(t){const n=new $M;return this.renderCell(t,n),n.value()}_renderSegment(t,n,e,r,i){let a;const u=this._regioncode(t,n),o=this._regioncode(e,r);0===u&&0===o?(i.moveTo(t,n),i.lineTo(e,r)):(a=this._clipSegment(t,n,e,r,u,o))&&(i.moveTo(a[0],a[1]),i.lineTo(a[2],a[3]))}contains(t,n,e){return(n=+n)==n&&(e=+e)==e&&this.delaunay._step(t,n,e)===t}_cell(t){const{circumcenters:n,delaunay:{inedges:e,halfedges:r,triangles:i}}=this,a=e[t];if(-1===a)return null;const u=[];let o=a;do{const e=Math.floor(o/3);if(u.push(n[2*e],n[2*e+1]),i[o=o%3==2?o-2:o+1]!==t)break;o=r[o]}while(o!==a&&-1!==o);return u}_clip(t){if(0===t&&1===this.delaunay.hull.length)return[this.xmax,this.ymin,this.xmax,this.ymax,this.xmin,this.ymax,this.xmin,this.ymin];const n=this._cell(t);if(null===n)return null;const{vectors:e}=this,r=4*t;return e[r]||e[r+1]?this._clipInfinite(t,n,e[r],e[r+1],e[r+2],e[r+3]):this._clipFinite(t,n)}_clipFinite(t,n){const e=n.length;let r,i,a,u,o,s=null,l=n[e-2],c=n[e-1],f=this._regioncode(l,c);for(let h=0;h<e;h+=2)if(r=l,i=c,l=n[h],c=n[h+1],a=f,f=this._regioncode(l,c),0===a&&0===f)u=o,o=0,s?s.push(l,c):s=[l,c];else{let n,e,h,d,p;if(0===a){if(null===(n=this._clipSegment(r,i,l,c,a,f)))continue;[e,h,d,p]=n}else{if(null===(n=this._clipSegment(l,c,r,i,f,a)))continue;[d,p,e,h]=n,u=o,o=this._edgecode(e,h),u&&o&&this._edge(t,u,o,s,s.length),s?s.push(e,h):s=[e,h]}u=o,o=this._edgecode(d,p),u&&o&&this._edge(t,u,o,s,s.length),s?s.push(d,p):s=[d,p]}if(s)u=o,o=this._edgecode(s[0],s[1]),u&&o&&this._edge(t,u,o,s,s.length);else if(this.contains(t,(this.xmin+this.xmax)/2,(this.ymin+this.ymax)/2))return[this.xmax,this.ymin,this.xmax,this.ymax,this.xmin,this.ymax,this.xmin,this.ymin];return s}_clipSegment(t,n,e,r,i,a){for(;;){if(0===i&&0===a)return[t,n,e,r];if(i&a)return null;let u,o,s=i||a;8&s?(u=t+(e-t)*(this.ymax-n)/(r-n),o=this.ymax):4&s?(u=t+(e-t)*(this.ymin-n)/(r-n),o=this.ymin):2&s?(o=n+(r-n)*(this.xmax-t)/(e-t),u=this.xmax):(o=n+(r-n)*(this.xmin-t)/(e-t),u=this.xmin),i?(t=u,n=o,i=this._regioncode(t,n)):(e=u,r=o,a=this._regioncode(e,r))}}_clipInfinite(t,n,e,r,i,a){let u,o=Array.from(n);if((u=this._project(o[0],o[1],e,r))&&o.unshift(u[0],u[1]),(u=this._project(o[o.length-2],o[o.length-1],i,a))&&o.push(u[0],u[1]),o=this._clipFinite(t,o))for(let n,e=0,r=o.length,i=this._edgecode(o[r-2],o[r-1]);e<r;e+=2)n=i,i=this._edgecode(o[e],o[e+1]),n&&i&&(e=this._edge(t,n,i,o,e),r=o.length);else this.contains(t,(this.xmin+this.xmax)/2,(this.ymin+this.ymax)/2)&&(o=[this.xmin,this.ymin,this.xmax,this.ymin,this.xmax,this.ymax,this.xmin,this.ymax]);return o}_edge(t,n,e,r,i){for(;n!==e;){let e,a;switch(n){case 5:n=4;continue;case 4:n=6,e=this.xmax,a=this.ymin;break;case 6:n=2;continue;case 2:n=10,e=this.xmax,a=this.ymax;break;case 10:n=8;continue;case 8:n=9,e=this.xmin,a=this.ymax;break;case 9:n=1;continue;case 1:n=5,e=this.xmin,a=this.ymin}r[i]===e&&r[i+1]===a||!this.contains(t,e,a)||(r.splice(i,0,e,a),i+=2)}if(r.length>4)for(let t=0;t<r.length;t+=2){const n=(t+2)%r.length,e=(t+4)%r.length;(r[t]===r[n]&&r[n]===r[e]||r[t+1]===r[n+1]&&r[n+1]===r[e+1])&&(r.splice(n,2),t-=2)}return i}_project(t,n,e,r){let i,a,u,o=1/0;if(r<0){if(n<=this.ymin)return null;(i=(this.ymin-n)/r)<o&&(u=this.ymin,a=t+(o=i)*e)}else if(r>0){if(n>=this.ymax)return null;(i=(this.ymax-n)/r)<o&&(u=this.ymax,a=t+(o=i)*e)}if(e>0){if(t>=this.xmax)return null;(i=(this.xmax-t)/e)<o&&(a=this.xmax,u=n+(o=i)*r)}else if(e<0){if(t<=this.xmin)return null;(i=(this.xmin-t)/e)<o&&(a=this.xmin,u=n+(o=i)*r)}return[a,u]}_edgecode(t,n){return(t===this.xmin?1:t===this.xmax?2:0)|(n===this.ymin?4:n===this.ymax?8:0)}_regioncode(t,n){return(t<this.xmin?1:t>this.xmax?2:0)|(n<this.ymin?4:n>this.ymax?8:0)}}const IM=2*Math.PI;function WM(t){return t[0]}function HM(t){return t[1]}function YM(t,n,e){return[t+Math.sin(t+n)*e,n+Math.cos(t-n)*e]}class GM{constructor(t){this._delaunator=new FM(t),this.inedges=new Int32Array(t.length/2),this._hullIndex=new Int32Array(t.length/2),this.points=this._delaunator.coords,this._init()}update(){return this._delaunator.update(),this._init(),this}_init(){const t=this._delaunator,n=this.points;if(t.hull&&t.hull.length>2&&function(t,n){let e,r,i=t.length,a=n[2*t[i-1]],u=n[2*t[i-1]+1],o=0;for(let s=0;s<i;s++)e=a,o+=(r=u)*(a=n[2*t[s]])-e*(u=n[2*t[s]+1]);return o/2}(t.hull,n)<1e-10){this.collinear=Int32Array.from({length:n.length/2},(t,n)=>n).sort((t,e)=>n[2*t]-n[2*e]||n[2*t+1]-n[2*e+1]);const t=this.collinear[0],e=this.collinear[this.collinear.length-1],r=[n[2*t],n[2*t+1],n[2*e],n[2*e+1]],i=1e-8*Math.sqrt((r[3]-r[1])**2+(r[2]-r[0])**2);for(let t=0,e=n.length/2;t<e;++t){const e=YM(n[2*t],n[2*t+1],i);n[2*t]=e[0],n[2*t+1]=e[1]}this._delaunator=new FM(n)}else delete this.collinear;const e=this.halfedges=this._delaunator.halfedges,r=this.hull=this._delaunator.hull,i=this.triangles=this._delaunator.triangles,a=this.inedges.fill(-1),u=this._hullIndex.fill(-1);for(let t=0,n=e.length;t<n;++t){const n=i[t%3==2?t-2:t+1];-1!==e[t]&&-1!==a[n]||(a[n]=t)}for(let t=0,n=r.length;t<n;++t)u[r[t]]=t;r.length<=2&&r.length>0&&(this.triangles=new Int32Array(3).fill(-1),this.halfedges=new Int32Array(3).fill(-1),this.triangles[0]=r[0],this.triangles[1]=r[1],this.triangles[2]=r[1],a[r[0]]=1,2===r.length&&(a[r[1]]=0))}voronoi(t){return new jM(this,t)}*neighbors(t){const{inedges:n,hull:e,_hullIndex:r,halfedges:i,triangles:a}=this;if(this.collinear){const n=this.collinear.indexOf(t);return n>0&&(yield this.collinear[n-1]),void(n<this.collinear.length-1&&(yield this.collinear[n+1]))}const u=n[t];if(-1===u)return;let o=u,s=-1;do{if(yield s=a[o],a[o=o%3==2?o-2:o+1]!==t)return;if(-1===(o=i[o])){const n=e[(r[t]+1)%e.length];return void(n!==s&&(yield n))}}while(o!==u)}find(t,n,e=0){if((t=+t)!=t||(n=+n)!=n)return-1;const r=e;let i;for(;(i=this._step(e,t,n))>=0&&i!==e&&i!==r;)e=i;return i}_step(t,n,e){const{inedges:r,hull:i,_hullIndex:a,halfedges:u,triangles:o,points:s}=this;if(-1===r[t]||!s.length)return(t+1)%(s.length>>1);let l=t,c=(n-s[2*t])**2+(e-s[2*t+1])**2;const f=r[t];let h=f;do{let r=o[h];const f=(n-s[2*r])**2+(e-s[2*r+1])**2;if(f<c&&(c=f,l=r),o[h=h%3==2?h-2:h+1]!==t)break;if(-1===(h=u[h])){if((h=i[(a[t]+1)%i.length])!==r&&(n-s[2*h])**2+(e-s[2*h+1])**2<c)return h;break}}while(h!==f);return l}render(t){const n=null==t?t=new UM:void 0,{points:e,halfedges:r,triangles:i}=this;for(let n=0,a=r.length;n<a;++n){const a=r[n];if(a<n)continue;const u=2*i[n],o=2*i[a];t.moveTo(e[u],e[u+1]),t.lineTo(e[o],e[o+1])}return this.renderHull(t),n&&n.value()}renderPoints(t,n=2){const e=null==t?t=new UM:void 0,{points:r}=this;for(let e=0,i=r.length;e<i;e+=2){const i=r[e],a=r[e+1];t.moveTo(i+n,a),t.arc(i,a,n,0,IM)}return e&&e.value()}renderHull(t){const n=null==t?t=new UM:void 0,{hull:e,points:r}=this,i=2*e[0],a=e.length;t.moveTo(r[i],r[i+1]);for(let n=1;n<a;++n){const i=2*e[n];t.lineTo(r[i],r[i+1])}return t.closePath(),n&&n.value()}hullPolygon(){const t=new $M;return this.renderHull(t),t.value()}renderTriangle(t,n){const e=null==n?n=new UM:void 0,{points:r,triangles:i}=this,a=2*i[t*=3],u=2*i[t+1],o=2*i[t+2];return n.moveTo(r[a],r[a+1]),n.lineTo(r[u],r[u+1]),n.lineTo(r[o],r[o+1]),n.closePath(),e&&e.value()}*trianglePolygons(){const{triangles:t}=this;for(let n=0,e=t.length/3;n<e;++n)yield this.trianglePolygon(n)}trianglePolygon(t){const n=new $M;return this.renderTriangle(t,n),n.value()}}function VM(t){Vr.call(this,null,t)}GM.from=function(t,n=WM,e=HM,r){return new GM("length"in t?function(t,n,e,r){const i=t.length,a=new Float64Array(2*i);for(let u=0;u<i;++u){const i=t[u];a[2*u]=n.call(r,i,u,t),a[2*u+1]=e.call(r,i,u,t)}return a}(t,n,e,r):Float64Array.from(function*(t,n,e,r){let i=0;for(const a of t)yield n.call(r,a,i,t),yield e.call(r,a,i,t),++i}(t,n,e,r)))},VM.Definition={type:"Voronoi",metadata:{modifies:!0},params:[{name:"x",type:"field",required:!0},{name:"y",type:"field",required:!0},{name:"size",type:"number",array:!0,length:2},{name:"extent",type:"array",array:!0,length:2,default:[[-1e5,-1e5],[1e5,1e5]],content:{type:"number",array:!0,length:2}},{name:"as",type:"string",default:"path"}]};const XM=it(VM,Vr),ZM=[-1e5,-1e5,1e5,1e5];function JM(t){const n=t[0][0],e=t[0][1];let r=t.length-1;for(;t[r][0]===n&&t[r][1]===e;--r);return"M"+t.slice(0,r+1).join("L")+"Z"}XM.transform=function(t,n){const e=t.as||"path",r=n.source;if(!r||!r.length)return n;let i=t.size;i=i?[0,0,i[0],i[1]]:(i=t.extent)?[i[0][0],i[0][1],i[1][0],i[1][1]]:ZM;const a=this.value=GM.from(r,t.x,t.y).voronoi(i);for(let t=0,n=r.length;t<n;++t){const n=a.cellPolygon(t);r[t][e]=n?JM(n):null}return n.reflow(t.modified()).modifies(e)};var QM=Object.freeze({voronoi:VM}),KM=Math.PI/180,tk=64,nk=2048;function ek(){var 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yl(n,t.specifiedProjection,t.size,B(t.data));return e.children.forEach(e=>{const t=e.component.projection;t&&(t.isFit&&i.data.push(...e.component.projection.data),e.renameProjection(t.get("name"),n),t.merged=!0)}),i}return}(e)}function vl(e,t){return`${qn(e)}_${t}`}function xl(e,t,n){const i=vl(Rn(n,void 0)||{},t);return e.getName(`${i}_bins`)}function Al(e,t,n){let i;i=function(e){return"as"in e}(e)?s(e.as)?[e.as,`${e.as}_end`]:[e.as[0],e.as[1]]:[Cn(e,{forAs:!0}),Cn(e,{binSuffix:"end",forAs:!0})];const r=Rn(t,void 0)||{},o=vl(r,e.field),{signal:a,extentSignal:u}=function(e,t){return{signal:e.getName(`${t}_bins`),extentSignal:e.getName(`${t}_extent`)}}(n,o);return{key:o,binComponent:Object.assign({bin:r,field:e.field,as:[i]},a?{signal:a}:{},u?{extentSignal:u}:{})}}class wl extends ea{constructor(e,t){super(e),this.bins=t}clone(){return new wl(null,B(this.bins))}static makeFromEncoding(e,t){const n=t.reduceFieldDef((e,n,i)=>{if(bn(n)&&Wn(n.bin)){const{key:r,binComponent:o}=Al(n,n.bin,t);e[r]=Object.assign({},o,e[r],function(e,t,n,i){if(In(t,n)){const r=kf(e)&&(e.axis(n)||e.legend(n))||{},o=Cn(t,{expr:"datum"}),a=Cn(t,{expr:"datum",binSuffix:"end"});return{formulaAs:Cn(t,{binSuffix:"range",forAs:!0}),formula:Vo(o,a,r.format,i)}}return{}}(t,n,i,t.config))}return e},{});return 0===Y(n).length?null:new wl(e,n)}static makeFromTransform(e,t,n){const{key:i,binComponent:r}=Al(t,t.bin,n);return new wl(e,{[i]:r})}merge(e,t){for(const n of Y(e.bins))n in this.bins?(t(e.bins[n].signal,this.bins[n].signal),this.bins[n].as=q([...this.bins[n].as,...e.bins[n].as],T)):this.bins[n]=e.bins[n];for(const t of e.children)e.removeChild(t),t.parent=this;e.remove()}producedFields(){return new Set(M(M(V(this.bins).map(e=>e.as))))}dependentFields(){return new Set(V(this.bins).map(e=>e.field))}hash(){return`Bin ${T(this.bins)}`}assemble(){return M(V(this.bins).map(e=>{const t=[],[n,...i]=e.as,r=Object.assign({type:"bin",field:te(e.field),as:n,signal:e.signal},e.bin);!e.bin.extent&&e.extentSignal&&(t.push({type:"extent",field:te(e.field),signal:e.extentSignal}),r.extent={signal:e.extentSignal}),t.push(r);for(const e of i)for(let i=0;i<2;i++)t.push({type:"formula",expr:Cn({field:n[i]},{expr:"datum"}),as:e[i]});return e.formula&&t.push({type:"formula",expr:e.formula,as:e.formulaAs}),t}))}}class Cl extends ea{constructor(e){let t;if(super(null),Lr(e=e||{name:"source"})||(t=e.format?Object.assign({},N(e.format,["parse"])):{}),Ur(e))this._data={values:e.values};else if(Pr(e)){if(this._data={url:e.url},!t.type){let n=/(?:\.([^.]+))?$/.exec(e.url)[1];R(["json","csv","tsv","dsv","topojson"],n)||(n="json"),t.type=n}}else qr(e)?this._data={values:[{type:"Sphere"}]}:(Mr(e)||Lr(e))&&(this._data={});this._generator=Lr(e),e.name&&(this._name=e.name),t&&Y(t).length>0&&(this._data.format=t)}get data(){return this._data}hasName(){return!!this._name}get isGenerator(){return this._generator}get dataName(){return this._name}set dataName(e){this._name=e}set parent(e){throw new Error("Source nodes have to be roots.")}remove(){throw new Error("Source nodes are roots and cannot be removed.")}hash(){throw new Error("Cannot hash sources")}assemble(){return Object.assign({name:this._name},this._data,{transform:[]})}}function Fl(e){for(const t of e){for(const e of t.children)if(e.parent!==t)return console.error("Dataflow graph is inconsistent.",t,e),!1;if(!Fl(t.children))return!1}return!0}class El extends ea{constructor(e,t){super(e),this.params=t}clone(){return new El(null,this.params)}assemble(){return Object.assign({type:"graticule"},!0===this.params?{}:this.params)}}class Dl extends ea{constructor(e,t){super(e),this.params=t}clone(){return new Dl(null,this.params)}producedFields(){return new Set([this.params.as||"data"])}assemble(){return Object.assign({type:"sequence"},this.params)}}function Sl(e){return e instanceof Cl||e instanceof El||e instanceof Dl}class kl{constructor(){this._mutated=!1}setMutated(){this._mutated=!0}get mutatedFlag(){return this._mutated}}class Ol extends kl{constructor(){super(),this._continue=!1}setContinue(){this._continue=!0}get continueFlag(){return this._continue}get flags(){return{continueFlag:this.continueFlag,mutatedFlag:this.mutatedFlag}}set flags({continueFlag:e,mutatedFlag:t}){e&&this.setContinue(),t&&this.setMutated()}reset(){}optimizeNextFromLeaves(e){if(Sl(e))return!1;const t=e.parent,{continueFlag:n}=this.run(e);return n&&this.optimizeNextFromLeaves(t),this.mutatedFlag}}class $l extends kl{}function Bl(e,t,n,i){if(bn(n)&&Wn(n.bin))e.add(Cn(n,{})),e.add(Cn(n,{binSuffix:"end"})),In(n,t)&&e.add(Cn(n,{binSuffix:"range"}));else if(t in ct){const n=function(e){switch(e){case We:return"y";case Ge:return"y2";case He:return"x";case Ye:return"x2"}}(t);e.add(i.getName(n))}else e.add(Cn(n));return e}class jl extends ea{constructor(e,t,n){super(e),this.dimensions=t,this.measures=n}clone(){return new jl(null,new Set(this.dimensions),B(this.measures))}get groupBy(){return this.dimensions}static makeFromEncoding(e,t){let n=!1;t.forEachFieldDef(e=>{e.aggregate&&(n=!0)});const i={},r=new Set;return n?(t.forEachFieldDef((e,n)=>{const{aggregate:o,field:a}=e;if(o)if("count"===o)i["*"]=i["*"]||{},i["*"].count=new Set([Cn(e,{forAs:!0})]);else{if($e(o)||Be(o)){const e=$e(o)?"argmin":"argmax",t=o[e];i[t]=i[t]||{},i[t][e]=new Set([Cn({op:e,field:t},{forAs:!0})])}else i[a]=i[a]||{},i[a][o]=new Set([Cn(e,{forAs:!0})]);Bt(n)&&"unaggregated"===t.scaleDomain(n)&&(i[a]=i[a]||{},i[a].min=new Set([Cn({field:a,aggregate:"min"},{forAs:!0})]),i[a].max=new Set([Cn({field:a,aggregate:"max"},{forAs:!0})]))}else Bl(r,n,e,t)}),r.size+Y(i).length===0?null:new jl(e,r,i)):null}static makeFromTransform(e,t){const n=new Set,i={};for(const e of t.aggregate){const{op:t,field:n,as:r}=e;t&&("count"===t?(i["*"]=i["*"]||{},i["*"].count=new Set([r||Cn(e,{forAs:!0})])):(i[n]=i[n]||{},i[n][t]=new Set([r||Cn(e,{forAs:!0})])))}for(const e of t.groupby||[])n.add(e);return n.size+Y(i).length===0?null:new jl(e,n,i)}merge(e){return function(e,t){if(e.size!==t.size)return!1;for(const n of e)if(!t.has(n))return!1;return!0}(this.dimensions,e.dimensions)?(function(e,t){for(const n of Y(t)){const i=t[n];for(const t of Y(i))n in e?e[n][t]=new Set([...e[n][t]||[],...i[t]]):e[n]={[t]:i[t]}}}(this.measures,e.measures),!0):(function(...e){Mt.debug.apply(Mt,arguments)}("different dimensions, cannot merge"),!1)}addDimensions(e){e.forEach(this.dimensions.add,this.dimensions)}dependentFields(){return new Set([...this.dimensions,...Y(this.measures)])}producedFields(){const e=new Set;for(const t of Y(this.measures))for(const n of Y(this.measures[t])){const i=this.measures[t][n];0===i.size?e.add(`${n}_${t}`):i.forEach(e.add,e)}return e}hash(){return`Aggregate ${T({dimensions:this.dimensions,measures:this.measures})}`}assemble(){const e=[],t=[],n=[];for(const i of Y(this.measures))for(const r of Y(this.measures[i]))for(const o of this.measures[i][r])n.push(o),e.push(r),t.push("*"===i?null:te(i));return{type:"aggregate",groupby:[...this.dimensions],ops:e,fields:t,as:n}}}class Nl extends ea{constructor(e,t,n,i){super(e),this.model=t,this.name=n,this.data=i;for(const e of ht){const n=t.facet[e];if(n){const{bin:i,sort:r}=n;this[e]=Object.assign({name:t.getName(`${e}_domain`),fields:[Cn(n),...Wn(i)?[Cn(n,{binSuffix:"end"})]:[]]},To(r)?{sortField:r}:o(r)?{sortIndexField:Gs(n,e)}:{})}}this.childModel=t.child}hash(){let e="Facet";for(const t of ht)this[t]&&(e+=` ${t.charAt(0)}:${T(this[t])}`);return e}get fields(){const e=[];for(const t of ht)this[t]&&this[t].fields&&e.push(...this[t].fields);return e}getSource(){return this.name}getChildIndependentFieldsWithStep(){const e={};for(const t of["x","y"]){const n=this.childModel.component.scales[t];if(n&&!n.merged){const i=n.get("type"),r=n.get("range");if(Wi(i)&&vo(r)){const n=lf(ff(this.childModel,t));n?e[t]=n:Lt("Unknown field for ${channel}.  Cannot calculate view size.")}}}return e}assembleRowColumnHeaderData(e,t,n){const i={row:"y",column:"x"}[e],r=[],o=[],a=[];n&&n[i]&&(t?(r.push(`distinct_${n[i]}`),o.push("max")):(r.push(n[i]),o.push("distinct")),a.push(`distinct_${n[i]}`));const{sortField:s,sortIndexField:u}=this[e];if(s){const{op:e=_o,field:t}=s;r.push(t),o.push(e),a.push(Cn(s,{forAs:!0}))}else u&&(r.push(u),o.push("max"),a.push(u));return{name:this[e].name,source:t||this.data,transform:[Object.assign({type:"aggregate",groupby:this[e].fields},r.length?{fields:r,ops:o,as:a}:{})]}}assembleFacetHeaderData(e){const{columns:t}=this.model.layout,{layoutHeaders:n}=this.model.component,i=[],r={};for(const e of Qs){for(const t of Xs){const i=n[e]&&n[e][t]||[];for(const t of i)if(t.axes&&t.axes.length>0){r[e]=!0;break}}if(r[e]){const n=`length(data("${this.facet.name}"))`,r="row"===e?t?{signal:`ceil(${n} / ${t})`}:1:t?{signal:`min(${n}, ${t})`}:{signal:n};i.push({name:`${this.facet.name}_${e}`,transform:[{type:"sequence",start:0,stop:r}]})}}const{row:o,column:a}=r;return(o||a)&&i.unshift(this.assembleRowColumnHeaderData("facet",null,e)),i}assemble(){const e=[];let t=null;const n=this.getChildIndependentFieldsWithStep(),{column:i,row:r,facet:o}=this;if(i&&r&&(n.x||n.y)){t=`cross_${this.column.name}_${this.row.name}`;const i=[].concat(n.x||[],n.y||[]),r=i.map(()=>"distinct");e.push({name:t,source:this.data,transform:[{type:"aggregate",groupby:this.fields,fields:i,ops:r}]})}for(const i of[Pe,Re])this[i]&&e.push(this.assembleRowColumnHeaderData(i,t,n));if(o){const t=this.assembleFacetHeaderData(n);t&&e.push(...t)}return e}}class _l extends ea{constructor(e,t,n){super(e),this.model=t,this.filter=n,this.expr=pc(this.model,this.filter,this),this._dependentFields=Ws(this.expr)}clone(){return new _l(null,this.model,B(this.filter))}dependentFields(){return this._dependentFields}assemble(){return{type:"filter",expr:this.expr}}hash(){return`Filter ${this.expr}`}}function Tl(e){return"'"===e[0]&&"'"===e[e.length-1]||'"'===e[0]&&'"'===e[e.length-1]?e.slice(1,-1):e}class zl extends ea{clone(){return new zl(null,B(this._parse))}constructor(e,t){super(e),this._parse=t}hash(){return`Parse ${T(this._parse)}`}static makeExplicit(e,t,n){let i={};const r=t.data;return!Lr(r)&&r&&r.format&&r.format.parse&&(i=r.format.parse),this.makeWithAncestors(e,i,{},n)}static makeImplicitFromFilterTransform(e,t,n){const i={};return function e(t,n){if(k(t))e(t.not,n);else if(S(t))for(const i of t.and)e(i,n);else if(D(t))for(const i of t.or)e(i,n);else n(t)}(t.filter,e=>{if(eo(e)){let t=null;Yr(e)?t=e.equal:Zr(e)?t=e.range[0]:Kr(e)&&(t=(e.oneOf||e.in)[0]),t&&(qt(t)?i[e.field]="date":v(t)?i[e.field]="number":s(t)&&(i[e.field]="string")),e.timeUnit&&(i[e.field]="date")}}),0===Y(i).length?null:this.makeWithAncestors(e,{},i,n)}static makeImplicitFromEncoding(e,t,n){const i={};function r(e){var t;Un(e)?i[e.field]="date":"quantitative"===e.type&&((t=e.aggregate)&&s(t)&&R(["min","max"],t))?i[e.field]="number":ie(e.field)>1?e.field in i||(i[e.field]="flatten"):An(e)&&To(e.sort)&&ie(e.sort.field)>1&&(e.sort.field in i||(i[e.sort.field]="flatten"))}if((kf(t)||Of(t))&&t.forEachFieldDef((e,n)=>{if(bn(e))r(e);else{const i=wt(n),o=t.fieldDef(i);r(Object.assign({},e,{type:o.type}))}}),kf(t)){const{mark:e,markDef:n,encoding:r}=t;if(ve(e)&&!t.encoding.order){const e=r["horizontal"===n.orient?"y":"x"];!yn(e)||"quantitative"!==e.type||e.field in i||(i[e.field]="number")}}return this.makeWithAncestors(e,{},i,n)}static makeWithAncestors(e,t,n,i){for(const e of Y(n)){const t=i.getWithExplicit(e);void 0!==t.value&&(t.explicit||t.value===n[e]||"derived"===t.value||"flatten"===n[e]?delete n[e]:Lt(zt.differentParse(e,n[e],t.value)))}for(const e of Y(t)){const n=i.get(e);void 0!==n&&(n===t[e]?delete t[e]:Lt(zt.differentParse(e,t[e],n)))}const r=new Gc(t,n);i.copyAll(r);const o={};for(const e of Y(r.combine())){const t=r.get(e);null!==t&&(o[e]=t)}return 0===Y(o).length||i.parseNothing?null:new zl(e,o)}get parse(){return this._parse}merge(e){this._parse=Object.assign({},this._parse,e.parse),e.remove()}assembleFormatParse(){const e={};for(const t of Y(this._parse)){const n=this._parse[t];1===ie(t)&&(e[t]=n)}return e}producedFields(){return new Set(Y(this._parse))}dependentFields(){return new Set(Y(this._parse))}assembleTransforms(e=!1){return Y(this._parse).filter(t=>!e||ie(t)>1).map(e=>{const t=function(e,t){const n=ee(e);if("number"===t)return`toNumber(${n})`;if("boolean"===t)return`toBoolean(${n})`;if("string"===t)return`toString(${n})`;if("date"===t)return`toDate(${n})`;if("flatten"===t)return n;if(0===t.indexOf("date:"))return`timeParse(${n},'${Tl(t.slice(5,t.length))}')`;if(0===t.indexOf("utc:"))return`utcParse(${n},'${Tl(t.slice(4,t.length))}')`;return Lt(zt.unrecognizedParse(t)),null}(e,this._parse[e]);return t?{type:"formula",expr:t,as:ne(e)}:null}).filter(e=>null!==e)}}class Rl extends ea{constructor(e,t){super(e),this.transform=t}clone(){return new Rl(null,B(this.transform))}addDimensions(e){this.transform.groupby=q(this.transform.groupby.concat(e),e=>e)}dependentFields(){const e=new Set;return this.transform.groupby&&this.transform.groupby.forEach(t=>e.add(t)),this.transform.joinaggregate.map(e=>e.field).filter(e=>void 0!==e).forEach(t=>e.add(t)),e}producedFields(){return new Set(this.transform.joinaggregate.map(this.getDefaultName))}getDefaultName(e){return e.as||Cn(e)}hash(){return`JoinAggregateTransform ${T(this.transform)}`}assemble(){const e=[],t=[],n=[];for(const i of this.transform.joinaggregate)t.push(i.op),n.push(this.getDefaultName(i)),e.push(void 0===i.field?null:i.field);const i=this.transform.groupby;return Object.assign({type:"joinaggregate",as:n,ops:t,fields:e},void 0!==i?{groupby:i}:{})}}class Pl extends ea{clone(){return new Pl(null,B(this._stack))}constructor(e,t){super(e),this._stack=t}static makeFromTransform(e,t){const{stack:n,groupby:i,as:r,offset:a="zero"}=t,u=[],c=[];if(void 0!==t.sort)for(const e of t.sort)u.push(e.field),c.push(re(e.order,"ascending"));const l={field:u,order:c};let f;return f=function(e){return o(e)&&e.every(e=>s(e))&&e.length>1}(r)?r:s(r)?[r,r+"_end"]:[t.stack+"_start",t.stack+"_end"],new Pl(e,{stackField:n,groupby:i,offset:a,sort:l,facetby:[],as:f})}static makeFromEncoding(e,t){const n=t.stack,{encoding:i}=t;if(!n)return null;let r;if(n.groupbyChannel){r=_n(i[n.groupbyChannel])}const a=function(e){return e.stack.stackBy.reduce((e,t)=>{const n=Cn(t.fieldDef);return n&&e.push(n),e},[])}(t),s=t.encoding.order;let u;return u=o(s)||yn(s)?Qo(s):a.reduce((e,t)=>(e.field.push(t),e.order.push("descending"),e),{field:[],order:[]}),new Pl(e,{dimensionFieldDef:r,stackField:t.vgField(n.fieldChannel),facetby:[],stackby:a,sort:u,offset:n.offset,impute:n.impute,as:[t.vgField(n.fieldChannel,{suffix:"start",forAs:!0}),t.vgField(n.fieldChannel,{suffix:"end",forAs:!0})]})}get stack(){return this._stack}addDimensions(e){this._stack.facetby.push(...e)}dependentFields(){const e=new Set;return e.add(this._stack.stackField),this.getGroupbyFields().forEach(t=>e.add(t)),this._stack.facetby.forEach(t=>e.add(t)),this._stack.sort.field.forEach(t=>e.add(t)),e}producedFields(){return new Set(this._stack.as)}hash(){return`Stack ${T(this._stack)}`}getGroupbyFields(){const{dimensionFieldDef:e,impute:t,groupby:n}=this._stack;return e?e.bin?t?[Cn(e,{binSuffix:"mid"})]:[Cn(e,{}),Cn(e,{binSuffix:"end"})]:[Cn(e)]:n||[]}assemble(){const e=[],{facetby:t,dimensionFieldDef:n,stackField:i,stackby:r,sort:o,offset:a,impute:s,as:u}=this._stack;return s&&n&&(n.bin&&e.push({type:"formula",expr:"0.5*"+Cn(n,{expr:"datum"})+"+0.5*"+Cn(n,{expr:"datum",binSuffix:"end"}),as:Cn(n,{binSuffix:"mid",forAs:!0})}),e.push({type:"impute",field:i,groupby:[...r,...t],key:Cn(n,{binSuffix:"mid"}),method:"value",value:0})),e.push({type:"stack",groupby:[...this.getGroupbyFields(),...t],field:i,sort:o,as:u,offset:a}),e}}class Ul extends ea{constructor(e,t){super(e),this.transform=t}clone(){return new Ul(null,B(this.transform))}addDimensions(e){this.transform.groupby=q(this.transform.groupby.concat(e),e=>e)}dependentFields(){const e=new Set;return(this.transform.groupby||[]).forEach(t=>e.add(t)),(this.transform.sort||[]).forEach(t=>e.add(t.field)),this.transform.window.map(e=>e.field).filter(e=>void 0!==e).forEach(t=>e.add(t)),e}producedFields(){return new Set(this.transform.window.map(this.getDefaultName))}getDefaultName(e){return e.as||Cn(e)}hash(){return`WindowTransform ${T(this.transform)}`}assemble(){const e=[],t=[],n=[],i=[];for(const r of this.transform.window)t.push(r.op),n.push(this.getDefaultName(r)),i.push(void 0===r.param?null:r.param),e.push(void 0===r.field?null:r.field);const r=this.transform.frame,o=this.transform.groupby;if(r&&null===r[0]&&null===r[1]&&t.every(e=>je(e)))return Object.assign({type:"joinaggregate",as:n,ops:t,fields:e},void 0!==o?{groupby:o}:{});const a=[],s=[];if(void 0!==this.transform.sort)for(const e of this.transform.sort)a.push(e.field),s.push(e.order||"ascending");const u={field:a,order:s},c=this.transform.ignorePeers;return Object.assign({type:"window",params:i,as:n,ops:t,fields:e,sort:u},void 0!==c?{ignorePeers:c}:{},void 0!==o?{groupby:o}:{},void 0!==r?{frame:r}:{})}}class Ml extends Ol{run(e){const t=e.parent;if(e instanceof zl){if(Sl(t))return this.flags;if(t.numChildren()>1)return this.setContinue(),this.flags;if(t instanceof zl)this.setMutated(),t.merge(e);else{if(G(t.producedFields(),e.dependentFields()))return this.setContinue(),this.flags;this.setMutated(),e.swapWithParent()}}return this.setContinue(),this.flags}}class Ll extends $l{mergeNodes(e,t){const n=t.shift();for(const i of t)e.removeChild(i),i.parent=n,i.remove()}run(e){const t=e.children.map(e=>e.hash()),n={};for(let i=0;i<t.length;i++)void 0===n[t[i]]?n[t[i]]=[e.children[i]]:n[t[i]].push(e.children[i]);for(const t of Y(n))n[t].length>1&&(this.setMutated(),this.mergeNodes(e,n[t]));for(const t of e.children)this.run(t);return this.mutatedFlag}}class Il extends Ol{run(e){return e instanceof ta||e.numChildren()>0||e instanceof Nl?this.flags:(this.setMutated(),e.remove(),this.flags)}}class ql extends Ol{constructor(){super(...arguments),this.fields=new Set}run(e){if(this.setContinue(),e instanceof Ou){const t=e.producedFields();W(t,this.fields)?(this.setMutated(),e.remove()):this.fields=new Set([...this.fields,...t])}return this.flags}reset(){this.fields.clear()}}class Wl extends Ol{run(e){this.setContinue();const t=e.parent.children.filter(e=>e instanceof Ou),n=t.pop();for(const e of t)this.setMutated(),n.merge(e);return this.flags}}function Hl(e){if(e instanceof Nl)if(1!==e.numChildren()||e.children[0]instanceof ta){const n=e.model.component.data.main;!function e(t){if(t instanceof ta&&t.type===Hr&&1===t.numChildren()){const n=t.children[0];n instanceof Nl||(n.swapWithParent(),e(t))}}(n);const i=(t=e,function e(n){if(!(n instanceof Nl)){const i=n.clone();if(i instanceof ta){const e=Xl+i.getSource();i.setSource(e),t.model.component.data.outputNodes[e]=i}else(i instanceof jl||i instanceof Pl||i instanceof Ul||i instanceof Rl)&&i.addDimensions(t.fields);return M(n.children.map(e)).forEach(e=>e.parent=i),[i]}return M(n.children.map(e))}),r=M(e.children.map(i));for(const e of r)e.parent=n}else{const t=e.children[0];(t instanceof jl||t instanceof Pl||t instanceof Ul||t instanceof Rl)&&t.addDimensions(e.fields),t.swapWithParent(),Hl(e)}else e.children.map(Hl);var t}class Gl extends $l{run(e){e instanceof ta&&!e.isRequired()&&(this.setMutated(),e.remove());for(const t of e.children)this.run(t);return this.mutatedFlag}}class Yl extends Ol{run(e){const t=e.parent,n=[...t.children],i=t.children.filter(e=>e instanceof zl);if(t.numChildren()>1&&i.length>=1){const e={},r=new Set;for(const t of i){const n=t.parse;for(const t of Y(n))t in e?e[t]!==n[t]&&r.add(t):e[t]=n[t]}for(const t of r)delete e[t];if(0!==Y(e).length){this.setMutated();const i=new zl(t,e);for(const r of n){if(r instanceof zl)for(const t of Y(e))delete r.parse[t];t.removeChild(r),r.parent=i,r instanceof zl&&0===Y(r.parse).length&&r.remove()}}}return this.setContinue(),this.flags}}class Vl extends Ol{run(e){const t=e.parent,n=t.children.filter(e=>e instanceof jl),i={};for(const e of n){const t=T(e.groupBy);t in i||(i[t]=[]),i[t].push(e)}for(const e of Y(i)){const n=i[e];if(n.length>1){const e=n.pop();for(const i of n)e.merge(i)&&(t.removeChild(i),i.parent=e,i.remove(),this.setMutated())}}return this.setContinue(),this.flags}}class Jl extends Ol{constructor(e){super(),this.model=e}run(e){const t=e.parent,n=!(Sl(t)||t instanceof _l||t instanceof zl),i=[],r=[];for(const e of t.children)e instanceof wl&&(n&&!G(t.producedFields(),e.dependentFields())?i.push(e):r.push(e));if(i.length>0){const e=i.pop();for(const t of i)e.merge(t,this.model.renameSignal.bind(this.model));this.setMutated(),t instanceof wl?t.merge(e,this.model.renameSignal.bind(this.model)):e.swapWithParent()}if(r.length>1){const e=r.pop();for(const t of r)e.merge(t,this.model.renameSignal.bind(this.model));this.setMutated()}return this.setContinue(),this.flags}}class Ql extends Ol{run(e){const t=e.parent,n=[...t.children];if(!P(n,e=>e instanceof ta)||t.numChildren()<=1)return this.setContinue(),this.flags;const i=[];let r;for(const e of n)if(e instanceof ta){let n=e;for(;1===n.numChildren();){const e=n.children[0];if(!(e instanceof ta))break;n=e}i.push(...n.children),r?(t.removeChild(e),e.parent=r.parent,r.parent.removeChild(r),r.parent=n,this.setMutated()):r=n}else i.push(e);if(i.length){this.setMutated();for(const e of i)e.parent.removeChild(e),e.parent=r}return this.setContinue(),this.flags}}const Xl="scale_",Zl=5;function Kl(e){const t=[];return e.forEach(function e(n){0===n.numChildren()?t.push(n):n.children.forEach(e)}),t}function ef(e){return e}function tf(e,t){return t.map(t=>{if(e instanceof Ol){const n=e.optimizeNextFromLeaves(t);return e.reset(),n}return e.run(t)}).some(ef)}function nf(e,t){let n=e.sources;const i=new Set;return i.add(tf(new Gl,n)),n=n.filter(e=>e.numChildren()>0),i.add(tf(new Il,Kl(n))),n=n.filter(e=>e.numChildren()>0),i.add(tf(new Ml,Kl(n))),i.add(tf(new Jl(t),Kl(n))),i.add(tf(new ql,Kl(n))),i.add(tf(new Yl,Kl(n))),i.add(tf(new Vl,Kl(n))),i.add(tf(new Wl,Kl(n))),i.add(tf(new Ll,n)),i.add(tf(new Ql,Kl(n))),e.sources=n,i.has(!0)}class rf{constructor(e){Object.defineProperty(this,"signal",{enumerable:!0,get:e})}static fromName(e,t){return new rf(()=>e(t))}}function of(e){kf(e)?function(e){const t=e.specifiedScales,n=e.component.scales;Y(n).forEach(i=>{const r=t[i],o=r?r.domain:void 0,a=function(e,t){const n=e.getScaleComponent(t).get("type"),i=function(e,t,n,i){if("unaggregated"===e){const{valid:e,reason:i}=uf(t,n);if(!e)return void Lt(i)}else if(void 0===e&&i.useUnaggregatedDomain){const{valid:e}=uf(t,n);if(e)return"unaggregated"}return e}(e.scaleDomain(t),e.fieldDef(t),n,e.config.scale);i!==e.scaleDomain(t)&&(e.specifiedScales[t]=Object.assign({},e.specifiedScales[t],{domain:i}));if("x"===t&&e.channelHasField("x2"))return e.channelHasField("x")?Xc(af(n,i,e,"x"),af(n,i,e,"x2"),"domain","scale",cf):af(n,i,e,"x2");if("y"===t&&e.channelHasField("y2"))return e.channelHasField("y")?Xc(af(n,i,e,"y"),af(n,i,e,"y2"),"domain","scale",cf):af(n,i,e,"y2");return 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this.getSizeSignalRef("height")}initSize(e){const{width:t,height:n}=e;t&&this.component.layoutSize.set("width",t,!0),n&&this.component.layoutSize.set("height",n,!0)}parse(){this.parseScale(),this.parseLayoutSize(),this.renameTopLevelLayoutSizeSignal(),this.parseSelections(),this.parseProjection(),this.parseData(),this.parseAxesAndHeaders(),this.parseLegends(),this.parseMarkGroup()}parseScale(){!function(e){Ef(e),of(e);for(const t of Xi)Af(e,t);wf(e)}(this)}parseProjection(){bl(this)}renameTopLevelLayoutSizeSignal(){"width"!==this.getName("width")&&this.renameSignal(this.getName("width"),"width"),"height"!==this.getName("height")&&this.renameSignal(this.getName("height"),"height")}parseLegends(){ul(this)}assembleGroupStyle(){if("unit"===this.type||"layer"===this.type)return this.view&&this.view.style||"cell"}assembleEncodeFromView(e){const t=ke(e,["style"]),n={};for(const e in t)if(t.hasOwnProperty(e)){const i=t[e];void 0!==i&&(n[e]={value:i})}return n}assembleGroupEncodeEntry(e){let t=void 0;return this.view&&(t=this.assembleEncodeFromView(this.view)),e||"unit"!==this.type&&"layer"!==this.type?t:Object.assign({width:this.getSizeSignalRef("width"),height:this.getSizeSignalRef("height")},t||{})}assembleLayout(){if(!this.layout)return;const e=this.layout,{spacing:t}=e,n=ke(e,["spacing"]),{component:i,config:r}=this,o=function(e,t){const n={};for(const i of ht){const r=e[i];if(r&&r.facetFieldDef){const{titleAnchor:e,titleOrient:o}=Js(["titleAnchor","titleOrient"],r.facetFieldDef,t,i),a=Ys(i,o),s=au(e,a);void 0!==s&&(n[a]=s)}}return Y(n).length>0?n:void 0}(i.layoutHeaders,r);return Object.assign({padding:t},this.assembleDefaultLayout(),n,o?{titleBand:o}:{})}assembleDefaultLayout(){return{}}assembleHeaderMarks(){const{layoutHeaders:e}=this.component;let t=[];for(const n of ht)e[n].title&&t.push(Zs(this,n));for(const e of Qs)t=t.concat(tu(this,e));return t}assembleAxes(){return function(e,t){const{x:n=[],y:i=[]}=e;return[...n.map(e=>ko(e,"main",t)),...n.map(e=>ko(e,"grid",t)),...i.map(e=>ko(e,"main",t)),...i.map(e=>ko(e,"grid",t))].filter(e=>e)}(this.component.axes,this.config)}assembleLegends(){return pl(this)}assembleProjections(){return hl(this)}assembleTitle(){const e=this.title||{},{encoding:t}=e,n=ke(e,["encoding"]),i=Object.assign({},fr(this.config.title).nonMark,n,t?{encode:{update:t}}:{});if(i.text)return R(["unit","layer"],this.type)?R(["middle",void 0],i.anchor)&&(i.frame=i.frame||"group"):i.anchor=i.anchor||"start",Y(i).length>0?i:void 0}assembleGroup(e=[]){const t={};(e=e.concat(this.assembleSignals())).length>0&&(t.signals=e);const n=this.assembleLayout();n&&(t.layout=n),t.marks=[].concat(this.assembleHeaderMarks(),this.assembleMarks());const i=!this.parent||Of(this.parent)?function e(t){return jf(t)||Bf(t)||$f(t)?t.children.reduce((t,n)=>t.concat(e(n)),df(t)):df(t)}(this):[];i.length>0&&(t.scales=i);const r=this.assembleAxes();r.length>0&&(t.axes=r);const o=this.assembleLegends();return o.length>0&&(t.legends=o),t}hasDescendantWithFieldOnChannel(e){for(const t of this.children)if(kf(t)){if(t.channelHasField(e))return!0}else if(t.hasDescendantWithFieldOnChannel(e))return!0;return!1}getName(e){return Q((this.name?this.name+"_":"")+e)}requestDataName(e){const t=this.getName(e),n=this.component.data.outputNodeRefCounts;return n[t]=(n[t]||0)+1,t}getSizeSignalRef(e){if(Of(this.parent)){const t="width"===e?"x":"y",n=this.component.scales[t];if(n&&!n.merged){const e=n.get("type"),i=n.get("range");if(Wi(e)&&vo(i)){const e=n.get("name"),i=lf(ff(this,t));if(i){return{signal:fu(e,n,Cn({aggregate:"distinct",field:i},{expr:"datum"}))}}return Lt("Unknown field for ${channel}.  Cannot calculate view size."),null}}}return{signal:this.signalNameMap.get(this.getName(e))}}lookupDataSource(e){const t=this.component.data.outputNodes[e];return t?t.getSource():e}getSignalName(e){return this.signalNameMap.get(e)}renameSignal(e,t){this.signalNameMap.rename(e,t)}renameScale(e,t){this.scaleNameMap.rename(e,t)}renameProjection(e,t){this.projectionNameMap.rename(e,t)}scaleName(e,t){return t?this.getName(e):vt(e)&&Bt(e)&&this.component.scales[e]||this.scaleNameMap.has(this.getName(e))?this.scaleNameMap.get(this.getName(e)):void 0}projectionName(e){return e?this.getName("projection"):this.component.projection&&!this.component.projection.merged||this.projectionNameMap.has(this.getName("projection"))?this.projectionNameMap.get(this.getName("projection")):void 0}getScaleComponent(e){if(!this.component.scales)throw new Error("getScaleComponent cannot be called before parseScale().  Make sure you have called parseScale or use parseUnitModelWithScale().");const t=this.component.scales[e];return t&&!t.merged?t:this.parent?this.parent.getScaleComponent(e):void 0}getSelectionComponent(e,t){let n=this.component.selection[e];if(!n&&this.parent&&(n=this.parent.getSelectionComponent(e,t)),!n)throw new Error(zt.selectionNotFound(t));return n}}class _f extends Nf{vgField(e,t={}){const n=this.fieldDef(e);if(n)return Cn(n,t)}reduceFieldDef(e,t,n){return ei(this.getMapping(),(t,n,i)=>{const r=Nn(n);return r?e(t,r,i):t},t,n)}forEachFieldDef(e,t){Kn(this.getMapping(),(t,n)=>{const i=Nn(t);i&&e(i,n)},t)}}class Tf extends ea{constructor(e,t){super(e),this.filter=t}clone(){return new Tf(null,Object.assign({},this.filter))}static make(e,t){const{config:n,mark:i}=t;if("filter"!==n.invalidValues)return null;const r=t.reduceFieldDef((e,n,r)=>{const o=Bt(r)&&t.getScaleComponent(r);if(o){!Hi(o.get("type"))||n.aggregate||ve(i)||(e[n.field]=n)}return e},{});return Y(r).length?new Tf(e,r):null}dependentFields(){return new Set(Y(this.filter))}assemble(){const e=Y(this.filter).reduce((e,t)=>{const n=this.filter[t],i=Cn(n,{expr:"datum"});return null!==n&&(e.push(`${i} !== null`),e.push(`!isNaN(${i})`)),e},[]);return e.length>0?{type:"filter",expr:e.join(" && ")}:null}}class zf extends ea{constructor(e,t){super(e),this.transform=t,this.transform=B(t);const{flatten:n,as:i=[]}=this.transform;this.transform.as=n.map((e,t)=>i[t]||e)}clone(){return new zf(this.parent,B(this.transform))}producedFields(){return new Set(this.transform.as)}hash(){return`FlattenTransform ${T(this.transform)}`}assemble(){const{flatten:e,as:t}=this.transform;return{type:"flatten",fields:e,as:t}}}class Rf extends ea{constructor(e,t){super(e),this.transform=t,this.transform=B(t);const n=this.transform.as||[void 0,void 0];this.transform.as=[n[0]||"key",n[1]||"value"]}clone(){return new Rf(null,B(this.transform))}producedFields(){return new Set(this.transform.as)}hash(){return`FoldTransform ${T(this.transform)}`}assemble(){const{fold:e,as:t}=this.transform;return{type:"fold",fields:e,as:t}}}class Pf extends ea{constructor(e,t,n,i){super(e),this.fields=t,this.geojson=n,this.signal=i}clone(){return new Pf(null,B(this.fields),this.geojson,this.signal)}static parseAll(e,t){if(t.component.projection&&!t.component.projection.isFit)return e;let n=0;if([[He,We],[Ye,Ge]].forEach(i=>{const r=i.map(e=>t.channelHasField(e)?t.fieldDef(e).field:xn(t.encoding[e])?{expr:t.encoding[e].value+""}:void 0);(r[0]||r[1])&&(e=new Pf(e,r,null,t.getName(`geojson_${n++}`)))}),t.channelHasField(Xe)){const i=t.fieldDef(Xe);i.type===pn&&(e=new Pf(e,null,i.field,t.getName(`geojson_${n++}`)))}return e}assemble(){return Object.assign({type:"geojson"},this.fields?{fields:this.fields}:{},this.geojson?{geojson:this.geojson}:{},{signal:this.signal})}}class Uf extends ea{constructor(e,t,n,i){super(e),this.projection=t,this.fields=n,this.as=i}clone(){return new Uf(null,this.projection,B(this.fields),B(this.as))}static parseAll(e,t){return t.projectionName()?([[He,We],[Ye,Ge]].forEach(n=>{const i=n.map(e=>t.channelHasField(e)?t.fieldDef(e).field:xn(t.encoding[e])?{expr:t.encoding[e].value+""}:void 0),r=n[0]===Ye?"2":"";(i[0]||i[1])&&(e=new Uf(e,t.projectionName(),i,[t.getName("x"+r),t.getName("y"+r)]))}),e):e}assemble(){return{type:"geopoint",projection:this.projection,fields:this.fields,as:this.as}}}class Mf extends ea{clone(){return new Mf(null)}constructor(e){super(e)}producedFields(){return new Set([ir])}hash(){return"Identifier"}assemble(){return{type:"identifier",as:ir}}}class Lf extends ea{constructor(e,t){super(e),this.transform=t}clone(){return new Lf(null,B(this.transform))}producedFields(){return new Set([this.transform.impute])}processSequence(e){const{start:t=0,stop:n,step:i}=e;return{signal:`sequence(${[t,n,...i?[i]:[]].join(",")})`}}static makeFromTransform(e,t){return new Lf(e,t)}static makeFromEncoding(e,t){const n=t.encoding,i=n.x,r=n.y;if(yn(i)&&yn(r)){const o=i.impute?i:r.impute?r:void 0;if(void 0===o)return;const a=i.impute?r:r.impute?i:void 0,{method:s,value:u,frame:c,keyvals:l}=o.impute,f=ti(t.mark,n);return new Lf(e,Object.assign({impute:o.field,key:a.field},s?{method:s}:{},void 0!==u?{value:u}:{},c?{frame:c}:{},void 0!==l?{keyvals:l}:{},f.length?{groupby:f}:{}))}return null}hash(){return`Impute ${T(this.transform)}`}assemble(){const{impute:e,key:t,keyvals:n,method:i,groupby:r,value:o,frame:a=[null,null]}=this.transform,s=Object.assign({type:"impute",field:e,key:t},n?{keyvals:(u=n,u&&void 0!==u.stop?this.processSequence(n):n)}:{},{method:"value"},r?{groupby:r}:{},{value:null});var u;let c;if(i&&"value"!==i){c=[Object.assign({type:"window",as:[`imputed_${e}_value`],ops:[i],fields:[e],frame:a,ignorePeers:!1},r?{groupby:r}:{}),{type:"formula",expr:`datum.${e} === null ? datum.imputed_${e}_value : datum.${e}`,as:e}]}else{c=[{type:"formula",expr:`datum.${e} === null ? ${o} : datum.${e}`,as:e}]}return[s,...c]}}class If extends Gc{constructor(e={},t={},n=!1){super(e,t),this.explicit=e,this.implicit=t,this.parseNothing=n}clone(){const e=super.clone();return e.parseNothing=this.parseNothing,e}}class qf extends ea{constructor(e,t,n){super(e),this.transform=t,this.secondary=n}clone(){return new qf(null,B(this.transform),this.secondary)}static make(e,t,n,i){const r=t.component.data.sources;let o=ud(n.from.data,r);o||(o=new Cl(n.from.data),r.push(o));const a=t.getName(`lookup_${i}`),s=new ta(o,a,"lookup",t.component.data.outputNodeRefCounts);return t.component.data.outputNodes[a]=s,new qf(e,n,s.getSource())}producedFields(){return new Set(this.transform.from.fields||(this.transform.as instanceof Array?this.transform.as:[this.transform.as]))}hash(){return`Lookup ${T({transform:this.transform,secondary:this.secondary})}`}assemble(){let e;if(this.transform.from.fields)e=Object.assign({values:this.transform.from.fields},this.transform.as?{as:this.transform.as instanceof Array?this.transform.as:[this.transform.as]}:{});else{let t=this.transform.as;s(t)||(Lt(zt.NO_FIELDS_NEEDS_AS),t="_lookup"),e={as:[t]}}return Object.assign({type:"lookup",from:this.secondary,key:this.transform.from.key,fields:[this.transform.lookup]},e,this.transform.default?{default:this.transform.default}:{})}}class Wf extends ea{constructor(e,t){super(e),this.transform=t}clone(){return new Wf(null,B(this.transform))}hash(){return`SampleTransform ${T(this.transform)}`}assemble(){return{type:"sample",size:this.transform.sample}}}function Hf(e){let t=0;return function n(i,r){i instanceof Cl&&!i.isGenerator&&!Pr(i.data)&&(e.push(r),r={name:null,source:r.name,transform:[]});if(i instanceof zl&&(i.parent instanceof Cl&&!r.source?(r.format=Object.assign({},r.format||{},{parse:i.assembleFormatParse()}),r.transform.push(...i.assembleTransforms(!0))):r.transform.push(...i.assembleTransforms())),i instanceof Nl)return r.name||(r.name=`data_${t++}`),!r.source||r.transform.length>0?(e.push(r),i.data=r.name):i.data=r.source,void i.assemble().forEach(t=>e.push(t));(i instanceof El||i instanceof Dl||i instanceof Tf||i instanceof _l||i instanceof Hs||i instanceof Uf||i instanceof Pf||i instanceof jl||i instanceof qf||i instanceof Ul||i instanceof Rl||i instanceof Rf||i instanceof zf||i instanceof Mf||i instanceof Wf)&&r.transform.push(i.assemble()),(i instanceof wl||i instanceof Ou||i instanceof Lf||i instanceof Pl)&&r.transform.push(...i.assemble()),i instanceof ta&&(r.source&&0===r.transform.length?i.setSource(r.source):i.parent instanceof ta?i.setSource(r.name):(r.name||(r.name=`data_${t++}`),i.setSource(r.name),1===i.numChildren()&&(e.push(r),r={name:null,source:r.name,transform:[]})));switch(i.numChildren()){case 0:i instanceof ta&&(!r.source||r.transform.length>0)&&e.push(r);break;case 1:n(i.children[0],r);break;default:{r.name||(r.name=`data_${t++}`);let o=r.name;!r.source||r.transform.length>0?e.push(r):o=r.source,i.children.forEach(e=>{n(e,{name:null,source:o,transform:[]})});break}}}}function Gf(e){return"top"===e||"left"===e?"header":"footer"}function Yf(e,t){if(e.channelHasField(t)){const n=e.facet[t],i=Vs("title",null,e.config,t);let r=On(n,e.config,{allowDisabling:!0,includeDefault:void 0===i||!!i});e.child.component.layoutHeaders[t].title&&(r+=" / "+e.child.component.layoutHeaders[t].title,e.child.component.layoutHeaders[t].title=null);const o=Vs("labelOrient",n,e.config,t),a=re((n.header||{}).labels,!0),s=R(["bottom","right"],o)?"footer":"header";e.component.layoutHeaders[t]={title:r,facetFieldDef:n,[s]:"facet"===t?[]:[Vf(e,t,a)]}}}function Vf(e,t,n){const i="row"===t?"height":"width";return{labels:n,sizeSignal:e.child.component.layoutSize.get(i)?e.child.getSizeSignalRef(i):void 0,axes:[]}}function Jf(e,t){const{child:n}=e;if(n.component.axes[t]){const{layoutHeaders:i,resolve:r}=e.component;if(r.axis[t]=Hc(r,t),"shared"===r.axis[t]){const r="x"===t?"column":"row",o=i[r];for(const i of n.component.axes[t]){const t=Gf(i.get("orient"));o[t]=o[t]||[Vf(e,r,!1)];const n=ko(i,"main",e.config,{header:!0});o[t][0].axes.push(n),i.mainExtracted=!0}}}}function Qf(e){Kf(e);const t=e.component.layoutSize;t.setWithExplicit("width",ed(e,"width")),t.setWithExplicit("height",ed(e,"height"))}const Xf=Qf,Zf={vconcat:"width",hconcat:"height"};function Kf(e){for(const t of e.children)t.parseLayoutSize()}function ed(e,t){const n="width"===t?"x":"y",i=e.component.resolve;let r;for(const o of e.children){const e=o.component.layoutSize.getWithExplicit(t),a=i.scale[n];if("independent"===a&&"range-step"===e.value){r=void 0;break}if(r){if("independent"===a&&r.value!==e.value){r=void 0;break}r=Xc(r,e,t,"")}else r=e}if(r){for(const n of e.children)e.renameSignal(n.getName(t),e.getName(t)),n.component.layoutSize.set(t,"merged",!1);return r}return{explicit:!1,value:void 0}}function td(e,t){const n="width"===t?"x":"y",i=e.config,r=e.getScaleComponent(n);if(r){const e=r.get("type"),n=r.get("range");return Wi(e)&&vo(n)?"range-step":i.view[t]}return e.hasProjection?i.view[t]:"width"===t&&"text"===e.mark?i.scale.textXRangeStep:i.scale.rangeStep||Vi.rangeStep}function nd(e,t){return function(e){return e&&!s(e)&&"repeat"in e}(e.field)?e.field.repeat in t?Object.assign({},e,{field:t[e.field.repeat]}):void Lt(zt.noSuchRepeatedValue(e.field.repeat)):e}function id(e,t){if(void 0!==(e=nd(e,t))){if(null===e)return null;if(function(e){return bn(e)&&!!e.sort}(e)&&To(e.sort)){const n=nd(e.sort,t);e=Object.assign({},e,n?{sort:n}:{})}return e}}function rd(e,t){if(!yn(e)){if(gn(e)){const n=id(e.condition,t);if(n)return Object.assign({},e,{condition:n});return ke(e,["condition"])}return e}{const n=id(e,t);if(n)return n;if(mn(e))return{condition:e.condition}}}function od(e,t){const n={};for(const i in e)if(e.hasOwnProperty(i)){const r=e[i];if(o(r))n[i]=r.map(e=>rd(e,t)).filter(e=>e);else{const e=rd(r,t);void 0!==e&&(n[i]=e)}}return n}function ad(e,t,n){return Cn(t,Object.assign({suffix:`by_${Cn(e)}`},n||{}))}class sd extends _f{constructor(e,t,n,i,r){super(e,"facet",t,n,r,i,e.resolve),this.child=$d(e.spec,this,this.getName("child"),void 0,i,r,!1),this.children=[this.child];const o=function(e,t){return Jt(e)?od(e,t):id(e,t)}(e.facet,i);this.facet=this.initFacet(o)}initFacet(e){return Jt(e)?ei(e,(e,t,n)=>R([Re,Pe],n)?void 0===t.field?(Lt(zt.emptyFieldDef(t,n)),e):(e[n]=Tn(t,n),e):(Lt(zt.incompatibleChannel(n,"facet")),e),{}):{facet:Tn(e,"facet")}}channelHasField(e){return!!this.facet[e]}fieldDef(e){return this.facet[e]}parseData(){this.component.data=cd(this),this.child.parseData()}parseLayoutSize(){Kf(this)}parseSelections(){this.child.parseSelections(),this.component.selection=this.child.component.selection}parseMarkGroup(){this.child.parseMarkGroup()}parseAxesAndHeaders(){this.child.parseAxesAndHeaders(),function(e){for(const t of ht)Yf(e,t);Jf(e,"x"),Jf(e,"y")}(this)}assembleSelectionTopLevelSignals(e){return this.child.assembleSelectionTopLevelSignals(e)}assembleSignals(){return this.child.assembleSignals(),[]}assembleSelectionData(e){return this.child.assembleSelectionData(e)}getHeaderLayoutMixins(){const e={};for(const t of ht)for(const n of Xs){const i=this.component.layoutHeaders[t],r=i[n],{facetFieldDef:o}=i;if(o){const n=Vs("titleOrient",o,this.config,t);if(R(["right","bottom"],n)){const i=Ys(t,n);e.titleAnchor=e.titleAnchor||{},e.titleAnchor[i]="end"}}if(r&&r[0]){const r="row"===t?"height":"width",o="header"===n?"headerBand":"footerBand";"facet"===t||this.child.component.layoutSize.get(r)||(e[o]=e[o]||{},e[o][t]=.5),i.title&&(e.offset=e.offset||{},e.offset["row"===t?"rowTitle":"columnTitle"]=10)}}return e}assembleDefaultLayout(){const{column:e,row:t}=this.facet,n=e?this.columnDistinctSignal():t?1:void 0;let i="all";return(t||"independent"!==this.component.resolve.scale.x)&&(e||"independent"!==this.component.resolve.scale.y)||(i="none"),Object.assign({},this.getHeaderLayoutMixins(),n?{columns:n}:{},{bounds:"full",align:i})}assembleLayoutSignals(){return this.child.assembleLayoutSignals()}columnDistinctSignal(){if(!(this.parent&&this.parent instanceof sd)){return{signal:`length(data('${this.getName("column_domain")}'))`}}}assembleGroup(e){return this.parent&&this.parent instanceof sd?Object.assign({},this.channelHasField("column")?{encode:{update:{columns:{field:Cn(this.facet.column,{prefix:"distinct"})}}}}:{},super.assembleGroup(e)):super.assembleGroup(e)}getCardinalityAggregateForChild(){const e=[],t=[],n=[];if(this.child instanceof sd){if(this.child.channelHasField("column")){const i=Cn(this.child.facet.column);e.push(i),t.push("distinct"),n.push(`distinct_${i}`)}}else for(const i of["x","y"]){const r=this.child.component.scales[i];if(r&&!r.merged){const o=r.get("type"),a=r.get("range");if(Wi(o)&&vo(a)){const r=lf(ff(this.child,i));r?(e.push(r),t.push("distinct"),n.push(`distinct_${r}`)):Lt("Unknown field for ${channel}.  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Object.assign({},e.component.data,{outputNodes:n,outputNodeRefCounts:i,raw:u,main:l,facetRoot:f,ancestorParse:r})}class ld extends Nf{constructor(e,t,n,i,r,o,a){super(e,t,n,i,r,o,a)}parseData(){this.component.data=cd(this),this.children.forEach(e=>{e.parseData()})}parseSelections(){this.component.selection={};for(const e of this.children)e.parseSelections(),Y(e.component.selection).forEach(t=>{this.component.selection[t]=e.component.selection[t]})}parseMarkGroup(){for(const e of this.children)e.parseMarkGroup()}parseAxesAndHeaders(){for(const e of this.children)e.parseAxesAndHeaders()}assembleSelectionTopLevelSignals(e){return this.children.reduce((e,t)=>t.assembleSelectionTopLevelSignals(e),e)}assembleSignals(){return this.children.forEach(e=>e.assembleSignals()),[]}assembleLayoutSignals(){return this.children.reduce((e,t)=>[...e,...t.assembleLayoutSignals()],uu(this))}assembleSelectionData(e){return this.children.reduce((e,t)=>t.assembleSelectionData(e),e)}assembleMarks(){return this.children.map(e=>{const t=e.assembleTitle(),n=e.assembleGroupStyle(),i=e.assembleGroupEncodeEntry(!1);return Object.assign({type:"group",name:e.getName("group")},t?{title:t}:{},n?{style:n}:{},i?{encode:{update:i}}:{},e.assembleGroup())})}}class fd extends ld{constructor(e,t,n,i,r){super(e,"concat",t,n,r,i,e.resolve),e.resolve&&e.resolve.axis&&("shared"===e.resolve.axis.x||"shared"===e.resolve.axis.y)&&Lt(zt.CONCAT_CANNOT_SHARE_AXIS),this.concatType=sr(e)?"vconcat":ur(e)?"hconcat":"concat",this.children=this.getChildren(e).map((e,t)=>$d(e,this,this.getName("concat_"+t),void 0,i,r,!1))}getChildren(e){return sr(e)?e.vconcat:ur(e)?e.hconcat:e.concat}parseLayoutSize(){!function(e){Kf(e);const t=e.component.layoutSize,n=Zf[e.concatType];n&&t.setWithExplicit(n,ed(e,n))}(this)}parseAxisGroup(){return null}assembleDefaultLayout(){return Object.assign({},"vconcat"===this.concatType?{columns:1}:{},{bounds:"full",align:"each"})}}class dd extends 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0,d=e.scaleName(t),p=o.orient,h=r[s]||r.size||o[s]||o.size||Io("size",o,i,{vgChannel:s}),m="x"===t?"vertical"===p:"horizontal"===p;return!yn(u)||!Wn(u.bin)&&!Hn(u.bin)||h||Wi(f)?(yn(u)&&Wi(f)||m)&&!c?yn(u)&&f===Ni.BAND?function(e,t,n,i){const r=n.scaleName(t),o="x"===t?"width":"height";if(n.encoding.size||void 0!==n.markDef.size||i&&void 0!==i.value)if(n.markDef.orient){const a={[t+"c"]:xc(e,r,{},{band:.5})};if(_n(n.encoding.size))return Object.assign({},a,zc("size",n,{vgChannel:o}));if(xn(n.encoding.size))return Object.assign({},a,zc("size",n,{vgChannel:o}));if(void 0!==n.markDef.size)return Object.assign({},a,{[o]:{value:n.markDef.size}});if(i&&void 0!==i.value)return Object.assign({},a,{[o]:i})}else Lt(zt.cannotApplySizeToNonOrientedMark(n.markDef.type));return{[t]:xc(e,r,{binSuffix:"range"},{}),[o]:i||Ac(r)}}(u,t,e,xd(n,o,s,d,l,i)):function(e,t,n,i){const r="x"===e?"xc":"yc",o="x"===e?"width":"height";return 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-sJUIHeader:"",sJUIFooter:""});var Pb=q.ext.pager;f.extend(Pb,{simple:function(a,b){return["previous","next"]},full:function(a,b){return["first","previous","next","last"]},numbers:function(a,b){return[ka(a,b)]},simple_numbers:function(a,b){return["previous",ka(a,b),"next"]},full_numbers:function(a,b){return["first","previous",ka(a,b),"next","last"]},first_last_numbers:function(a,b){return["first",ka(a,b),"last"]},_numbers:ka,numbers_length:7});f.extend(!0,q.ext.renderer,{pageButton:{_:function(a,b,
-c,d,e,h){var g=a.oClasses,k=a.oLanguage.oPaginate,l=a.oLanguage.oAria.paginate||{},n,m,q=0,t=function(b,d){var p,r=g.sPageButtonDisabled,u=function(b){Xa(a,b.data.action,!0)};var w=0;for(p=d.length;w<p;w++){var v=d[w];if(f.isArray(v)){var x=f("<"+(v.DT_el||"div")+"/>").appendTo(b);t(x,v)}else{n=null;m=v;x=a.iTabIndex;switch(v){case "ellipsis":b.append('<span class="ellipsis">&#x2026;</span>');break;case "first":n=k.sFirst;0===e&&(x=-1,m+=" "+r);break;case "previous":n=k.sPrevious;0===e&&(x=-1,m+=
-" "+r);break;case "next":n=k.sNext;e===h-1&&(x=-1,m+=" "+r);break;case "last":n=k.sLast;e===h-1&&(x=-1,m+=" "+r);break;default:n=v+1,m=e===v?g.sPageButtonActive:""}null!==n&&(x=f("<a>",{"class":g.sPageButton+" "+m,"aria-controls":a.sTableId,"aria-label":l[v],"data-dt-idx":q,tabindex:x,id:0===c&&"string"===typeof v?a.sTableId+"_"+v:null}).html(n).appendTo(b),$a(x,{action:v},u),q++)}}};try{var v=f(b).find(y.activeElement).data("dt-idx")}catch(mc){}t(f(b).empty(),d);v!==p&&f(b).find("[data-dt-idx="+
-v+"]").focus()}}});f.extend(q.ext.type.detect,[function(a,b){b=b.oLanguage.sDecimal;return db(a,b)?"num"+b:null},function(a,b){if(a&&!(a instanceof Date)&&!cc.test(a))return null;b=Date.parse(a);return null!==b&&!isNaN(b)||P(a)?"date":null},function(a,b){b=b.oLanguage.sDecimal;return db(a,b,!0)?"num-fmt"+b:null},function(a,b){b=b.oLanguage.sDecimal;return Ub(a,b)?"html-num"+b:null},function(a,b){b=b.oLanguage.sDecimal;return Ub(a,b,!0)?"html-num-fmt"+b:null},function(a,b){return P(a)||"string"===
-typeof a&&-1!==a.indexOf("<")?"html":null}]);f.extend(q.ext.type.search,{html:function(a){return P(a)?a:"string"===typeof a?a.replace(Rb," ").replace(Ea,""):""},string:function(a){return P(a)?a:"string"===typeof a?a.replace(Rb," "):a}});var Da=function(a,b,c,d){if(0!==a&&(!a||"-"===a))return-Infinity;b&&(a=Tb(a,b));a.replace&&(c&&(a=a.replace(c,"")),d&&(a=a.replace(d,"")));return 1*a};f.extend(C.type.order,{"date-pre":function(a){a=Date.parse(a);return isNaN(a)?-Infinity:a},"html-pre":function(a){return P(a)?
-"":a.replace?a.replace(/<.*?>/g,"").toLowerCase():a+""},"string-pre":function(a){return P(a)?"":"string"===typeof a?a.toLowerCase():a.toString?a.toString():""},"string-asc":function(a,b){return a<b?-1:a>b?1:0},"string-desc":function(a,b){return a<b?1:a>b?-1:0}});Ha("");f.extend(!0,q.ext.renderer,{header:{_:function(a,b,c,d){f(a.nTable).on("order.dt.DT",function(e,f,g,k){a===f&&(e=c.idx,b.removeClass(c.sSortingClass+" "+d.sSortAsc+" "+d.sSortDesc).addClass("asc"==k[e]?d.sSortAsc:"desc"==k[e]?d.sSortDesc:
-c.sSortingClass))})},jqueryui:function(a,b,c,d){f("<div/>").addClass(d.sSortJUIWrapper).append(b.contents()).append(f("<span/>").addClass(d.sSortIcon+" "+c.sSortingClassJUI)).appendTo(b);f(a.nTable).on("order.dt.DT",function(e,f,g,k){a===f&&(e=c.idx,b.removeClass(d.sSortAsc+" "+d.sSortDesc).addClass("asc"==k[e]?d.sSortAsc:"desc"==k[e]?d.sSortDesc:c.sSortingClass),b.find("span."+d.sSortIcon).removeClass(d.sSortJUIAsc+" "+d.sSortJUIDesc+" "+d.sSortJUI+" "+d.sSortJUIAscAllowed+" "+d.sSortJUIDescAllowed).addClass("asc"==
-k[e]?d.sSortJUIAsc:"desc"==k[e]?d.sSortJUIDesc:c.sSortingClassJUI))})}}});var ib=function(a){return"string"===typeof a?a.replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;"):a};q.render={number:function(a,b,c,d,e){return{display:function(f){if("number"!==typeof f&&"string"!==typeof f)return f;var g=0>f?"-":"",h=parseFloat(f);if(isNaN(h))return ib(f);h=h.toFixed(c);f=Math.abs(h);h=parseInt(f,10);f=c?b+(f-h).toFixed(c).substring(2):"";return g+(d||"")+h.toString().replace(/\B(?=(\d{3})+(?!\d))/g,
-a)+f+(e||"")}}},text:function(){return{display:ib,filter:ib}}};f.extend(q.ext.internal,{_fnExternApiFunc:Qb,_fnBuildAjax:va,_fnAjaxUpdate:qb,_fnAjaxParameters:zb,_fnAjaxUpdateDraw:Ab,_fnAjaxDataSrc:wa,_fnAddColumn:Ia,_fnColumnOptions:ma,_fnAdjustColumnSizing:aa,_fnVisibleToColumnIndex:ba,_fnColumnIndexToVisible:ca,_fnVisbleColumns:W,_fnGetColumns:oa,_fnColumnTypes:Ka,_fnApplyColumnDefs:nb,_fnHungarianMap:H,_fnCamelToHungarian:L,_fnLanguageCompat:Ga,_fnBrowserDetect:lb,_fnAddData:R,_fnAddTr:pa,_fnNodeToDataIndex:function(a,
-b){return b._DT_RowIndex!==p?b._DT_RowIndex:null},_fnNodeToColumnIndex:function(a,b,c){return f.inArray(c,a.aoData[b].anCells)},_fnGetCellData:I,_fnSetCellData:ob,_fnSplitObjNotation:Na,_fnGetObjectDataFn:U,_fnSetObjectDataFn:Q,_fnGetDataMaster:Oa,_fnClearTable:qa,_fnDeleteIndex:ra,_fnInvalidate:ea,_fnGetRowElements:Ma,_fnCreateTr:La,_fnBuildHead:pb,_fnDrawHead:ha,_fnDraw:S,_fnReDraw:V,_fnAddOptionsHtml:sb,_fnDetectHeader:fa,_fnGetUniqueThs:ua,_fnFeatureHtmlFilter:ub,_fnFilterComplete:ia,_fnFilterCustom:Db,
-_fnFilterColumn:Cb,_fnFilter:Bb,_fnFilterCreateSearch:Ta,_fnEscapeRegex:Ua,_fnFilterData:Eb,_fnFeatureHtmlInfo:xb,_fnUpdateInfo:Hb,_fnInfoMacros:Ib,_fnInitialise:ja,_fnInitComplete:xa,_fnLengthChange:Va,_fnFeatureHtmlLength:tb,_fnFeatureHtmlPaginate:yb,_fnPageChange:Xa,_fnFeatureHtmlProcessing:vb,_fnProcessingDisplay:K,_fnFeatureHtmlTable:wb,_fnScrollDraw:na,_fnApplyToChildren:N,_fnCalculateColumnWidths:Ja,_fnThrottle:Sa,_fnConvertToWidth:Jb,_fnGetWidestNode:Kb,_fnGetMaxLenString:Lb,_fnStringToCss:B,
-_fnSortFlatten:Y,_fnSort:rb,_fnSortAria:Nb,_fnSortListener:Za,_fnSortAttachListener:Qa,_fnSortingClasses:Aa,_fnSortData:Mb,_fnSaveState:Ba,_fnLoadState:Ob,_fnSettingsFromNode:Ca,_fnLog:O,_fnMap:M,_fnBindAction:$a,_fnCallbackReg:E,_fnCallbackFire:A,_fnLengthOverflow:Wa,_fnRenderer:Ra,_fnDataSource:D,_fnRowAttributes:Pa,_fnExtend:ab,_fnCalculateEnd:function(){}});f.fn.dataTable=q;q.$=f;f.fn.dataTableSettings=q.settings;f.fn.dataTableExt=q.ext;f.fn.DataTable=function(a){return f(this).dataTable(a).api()};
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-/*!
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-a("<li>",{"class":x.sPageButton+" "+h,id:0===v&&"string"===typeof f?b.sTableId+"_"+f:null}).append(a("<a>",{href:"#","aria-controls":b.sTableId,"aria-label":y[f],"data-dt-idx":t,tabindex:b.iTabIndex,"class":"page-link"}).html(g)).appendTo(c);b.oApi._fnBindAction(p,{action:f},l);t++}}}};try{var p=a(l).find(c.activeElement).data("dt-idx")}catch(z){}u(a(l).empty().html('<ul class="pagination"/>').children("ul"),w);p!==e&&a(l).find("[data-dt-idx="+p+"]").focus()};return d});
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-/*!
- Responsive 2.2.2
- 2014-2018 SpryMedia Ltd - datatables.net/license
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-(function(d){"function"===typeof define&&define.amd?define(["jquery","datatables.net"],function(l){return d(l,window,document)}):"object"===typeof exports?module.exports=function(l,j){l||(l=window);if(!j||!j.fn.dataTable)j=require("datatables.net")(l,j).$;return d(j,l,l.document)}:d(jQuery,window,document)})(function(d,l,j,q){function t(a,b,c){var e=b+"-"+c;if(n[e])return n[e];for(var d=[],a=a.cell(b,c).node().childNodes,b=0,c=a.length;b<c;b++)d.push(a[b]);return n[e]=d}function r(a,b,d){var e=b+
-"-"+d;if(n[e]){for(var a=a.cell(b,d).node(),d=n[e][0].parentNode.childNodes,b=[],f=0,g=d.length;f<g;f++)b.push(d[f]);d=0;for(f=b.length;d<f;d++)a.appendChild(b[d]);n[e]=q}}var o=d.fn.dataTable,i=function(a,b){if(!o.versionCheck||!o.versionCheck("1.10.10"))throw"DataTables Responsive requires DataTables 1.10.10 or newer";this.s={dt:new o.Api(a),columns:[],current:[]};this.s.dt.settings()[0].responsive||(b&&"string"===typeof b.details?b.details={type:b.details}:b&&!1===b.details?b.details={type:!1}:
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-/*!
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- This source file is free software, available under the following license:
-   MIT license - http://datatables.net/license/mit
-
- This source file is distributed in the hope that it will be useful, but
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- 2015-2018 SpryMedia Ltd - datatables.net/license/mit
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-action:function(){this[this.select.items()+"s"]().select()}},selectNone:{text:t("selectNone","Deselect all"),className:"buttons-select-none",action:function(){r(this.settings()[0],!0)},init:function(a,b,c){var d=this;c._eventNamespace=".select"+y++;a.on(x(c),function(){var b=a.rows({selected:!0}).flatten().length+a.columns({selected:!0}).flatten().length+a.cells({selected:!0}).flatten().length;d.enable(0<b)});this.disable()},destroy:function(a,b,c){a.off(c._eventNamespace)}}});f.each(["Row","Column",
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-
-
-/*!
- Bootstrap 4 styling wrapper for Select
- ©2018 SpryMedia Ltd - datatables.net/license
-*/
-(function(c){"function"===typeof define&&define.amd?define(["jquery","datatables.net-bs4","datatables.net-select"],function(a){return c(a,window,document)}):"object"===typeof exports?module.exports=function(a,b){a||(a=window);b&&b.fn.dataTable||(b=require("datatables.net-bs4")(a,b).$);b.fn.dataTable.select||require("datatables.net-select")(a,b);return c(b,a,a.document)}:c(jQuery,window,document)})(function(c,a,b,d){return c.fn.dataTable});
+    /**
+     * Forces an update. This should only be invoked when it is known with
+     * certainty that we are **not** in a DOM transaction.
+     *
+     * You may want to call this when you know that some deeper aspect of the
+     * component's state has changed but `setState` was not called.
+     *
+     * This will not invoke `shouldComponentUpdate`, but it will invoke
+     * `componentWillUpdate` and `componentDidUpdate`.
+     *
+     * @param {ReactClass} publicInstance The instance that should rerender.
+     * @param {?function} callback Called after component is updated.
+     * @param {?string} callerName name of the calling function in the public API.
+     * @internal
+     */
+    enqueueForceUpdate: function (publicInstance, callback, callerName) {
+      warnNoop(publicInstance, 'forceUpdate');
+    },
 
+    /**
+     * Replaces all of the state. Always use this or `setState` to mutate state.
+     * You should treat `this.state` as immutable.
+     *
+     * There is no guarantee that `this.state` will be immediately updated, so
+     * accessing `this.state` after calling this method may return the old value.
+     *
+     * @param {ReactClass} publicInstance The instance that should rerender.
+     * @param {object} completeState Next state.
+     * @param {?function} callback Called after component is updated.
+     * @param {?string} callerName name of the calling function in the public API.
+     * @internal
+     */
+    enqueueReplaceState: function (publicInstance, completeState, callback, callerName) {
+      warnNoop(publicInstance, 'replaceState');
+    },
 
-</script>
-    <script>/*
-* FileSaver.js
-* A saveAs() FileSaver implementation.
-*
-* By Eli Grey, http://eligrey.com
-*
-* License : https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md (MIT)
-* source  : http://purl.eligrey.com/github/FileSaver.js
-*/
-
-
-// The one and only way of getting global scope in all environments
-// https://stackoverflow.com/q/3277182/1008999
-var _global = typeof window === 'object' && window.window === window
-  ? window : typeof self === 'object' && self.self === self
-  ? self : typeof global === 'object' && global.global === global
-  ? global
-  : this
-
-function bom (blob, opts) {
-  if (typeof opts === 'undefined') opts = { autoBom: false }
-  else if (typeof opts !== 'object') {
-    console.warn('Depricated: Expected third argument to be a object')
-    opts = { autoBom: !opts }
-  }
-
-  // prepend BOM for UTF-8 XML and text/* types (including HTML)
-  // note: your browser will automatically convert UTF-16 U+FEFF to EF BB BF
-  if (opts.autoBom && /^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) {
-    return new Blob([String.fromCharCode(0xFEFF), blob], { type: blob.type })
-  }
-  return blob
-}
+    /**
+     * Sets a subset of the state. This only exists because _pendingState is
+     * internal. This provides a merging strategy that is not available to deep
+     * properties which is confusing. TODO: Expose pendingState or don't use it
+     * during the merge.
+     *
+     * @param {ReactClass} publicInstance The instance that should rerender.
+     * @param {object} partialState Next partial state to be merged with state.
+     * @param {?function} callback Called after component is updated.
+     * @param {?string} Name of the calling function in the public API.
+     * @internal
+     */
+    enqueueSetState: function (publicInstance, partialState, callback, callerName) {
+      warnNoop(publicInstance, 'setState');
+    }
+  };
 
-function download (url, name, opts) {
-  var xhr = new XMLHttpRequest()
-  xhr.open('GET', url)
-  xhr.responseType = 'blob'
-  xhr.onload = function () {
-    saveAs(xhr.response, name, opts)
-  }
-  xhr.onerror = function () {
-    console.error('could not download file')
+  var emptyObject = {};
+
+  {
+    Object.freeze(emptyObject);
   }
-  xhr.send()
-}
+  /**
+   * Base class helpers for the updating state of a component.
+   */
 
-function corsEnabled (url) {
-  var xhr = new XMLHttpRequest()
-  // use sync to avoid popup blocker
-  xhr.open('HEAD', url, false)
-  xhr.send()
-  return xhr.status >= 200 && xhr.status <= 299
-}
 
-// `a.click()` doesn't work for all browsers (#465)
-function click(node) {
-  try {
-    node.dispatchEvent(new MouseEvent('click'))
-  } catch (e) {
-    var evt = document.createEvent('MouseEvents')
-    evt.initMouseEvent('click', true, true, window, 0, 0, 0, 80,
-                          20, false, false, false, false, 0, null)
-    node.dispatchEvent(evt)
+  function Component(props, context, updater) {
+    this.props = props;
+    this.context = context; // If a component has string refs, we will assign a different object later.
+
+    this.refs = emptyObject; // We initialize the default updater but the real one gets injected by the
+    // renderer.
+
+    this.updater = updater || ReactNoopUpdateQueue;
   }
-}
 
-var saveAs = _global.saveAs ||
-// probably in some web worker
-(typeof window !== 'object' || window !== _global)
-  ? function saveAs () { /* noop */ }
+  Component.prototype.isReactComponent = {};
+  /**
+   * Sets a subset of the state. Always use this to mutate
+   * state. You should treat `this.state` as immutable.
+   *
+   * There is no guarantee that `this.state` will be immediately updated, so
+   * accessing `this.state` after calling this method may return the old value.
+   *
+   * There is no guarantee that calls to `setState` will run synchronously,
+   * as they may eventually be batched together.  You can provide an optional
+   * callback that will be executed when the call to setState is actually
+   * completed.
+   *
+   * When a function is provided to setState, it will be called at some point in
+   * the future (not synchronously). It will be called with the up to date
+   * component arguments (state, props, context). These values can be different
+   * from this.* because your function may be called after receiveProps but before
+   * shouldComponentUpdate, and this new state, props, and context will not yet be
+   * assigned to this.
+   *
+   * @param {object|function} partialState Next partial state or function to
+   *        produce next partial state to be merged with current state.
+   * @param {?function} callback Called after state is updated.
+   * @final
+   * @protected
+   */
 
-// Use download attribute first if possible (#193 Lumia mobile)
-: 'download' in HTMLAnchorElement.prototype
-? function saveAs (blob, name, opts) {
-  var URL = _global.URL || _global.webkitURL
-  var a = document.createElement('a')
-  name = name || blob.name || 'download'
+  Component.prototype.setState = function (partialState, callback) {
+    if (!(typeof partialState === 'object' || typeof partialState === 'function' || partialState == null)) {
+      {
+        throw Error( "setState(...): takes an object of state variables to update or a function which returns an object of state variables." );
+      }
+    }
 
-  a.download = name
-  a.rel = 'noopener' // tabnabbing
+    this.updater.enqueueSetState(this, partialState, callback, 'setState');
+  };
+  /**
+   * Forces an update. This should only be invoked when it is known with
+   * certainty that we are **not** in a DOM transaction.
+   *
+   * You may want to call this when you know that some deeper aspect of the
+   * component's state has changed but `setState` was not called.
+   *
+   * This will not invoke `shouldComponentUpdate`, but it will invoke
+   * `componentWillUpdate` and `componentDidUpdate`.
+   *
+   * @param {?function} callback Called after update is complete.
+   * @final
+   * @protected
+   */
 
-  // TODO: detect chrome extensions & packaged apps
-  // a.target = '_blank'
 
-  if (typeof blob === 'string') {
-    // Support regular links
-    a.href = blob
-    if (a.origin !== location.origin) {
-      corsEnabled(a.href)
-        ? download(blob, name, opts)
-        : click(a, a.target = '_blank')
-    } else {
-      click(a)
+  Component.prototype.forceUpdate = function (callback) {
+    this.updater.enqueueForceUpdate(this, callback, 'forceUpdate');
+  };
+  /**
+   * Deprecated APIs. These APIs used to exist on classic React classes but since
+   * we would like to deprecate them, we're not going to move them over to this
+   * modern base class. Instead, we define a getter that warns if it's accessed.
+   */
+
+
+  {
+    var deprecatedAPIs = {
+      isMounted: ['isMounted', 'Instead, make sure to clean up subscriptions and pending requests in ' + 'componentWillUnmount to prevent memory leaks.'],
+      replaceState: ['replaceState', 'Refactor your code to use setState instead (see ' + 'https://github.com/facebook/react/issues/3236).']
+    };
+
+    var defineDeprecationWarning = function (methodName, info) {
+      Object.defineProperty(Component.prototype, methodName, {
+        get: function () {
+          warn('%s(...) is deprecated in plain JavaScript React classes. %s', info[0], info[1]);
+
+          return undefined;
+        }
+      });
+    };
+
+    for (var fnName in deprecatedAPIs) {
+      if (deprecatedAPIs.hasOwnProperty(fnName)) {
+        defineDeprecationWarning(fnName, deprecatedAPIs[fnName]);
+      }
     }
-  } else {
-    // Support blobs
-    a.href = URL.createObjectURL(blob)
-    setTimeout(function () { URL.revokeObjectURL(a.href) }, 4E4) // 40s
-    setTimeout(function () { click(a) }, 0)
   }
-}
 
-// Use msSaveOrOpenBlob as a second approach
-: 'msSaveOrOpenBlob' in navigator
-? function saveAs (blob, name, opts) {
-  name = name || blob.name || 'download'
+  function ComponentDummy() {}
 
-  if (typeof blob === 'string') {
-    if (corsEnabled(blob)) {
-      download(blob, name, opts)
-    } else {
-      var a = document.createElement('a')
-      a.href = blob
-      a.target = '_blank'
-      setTimeout(function () { click(a) })
+  ComponentDummy.prototype = Component.prototype;
+  /**
+   * Convenience component with default shallow equality check for sCU.
+   */
+
+  function PureComponent(props, context, updater) {
+    this.props = props;
+    this.context = context; // If a component has string refs, we will assign a different object later.
+
+    this.refs = emptyObject;
+    this.updater = updater || ReactNoopUpdateQueue;
+  }
+
+  var pureComponentPrototype = PureComponent.prototype = new ComponentDummy();
+  pureComponentPrototype.constructor = PureComponent; // Avoid an extra prototype jump for these methods.
+
+  assign(pureComponentPrototype, Component.prototype);
+
+  pureComponentPrototype.isPureReactComponent = true;
+
+  // an immutable object with a single mutable value
+  function createRef() {
+    var refObject = {
+      current: null
+    };
+
+    {
+      Object.seal(refObject);
     }
-  } else {
-    navigator.msSaveOrOpenBlob(bom(blob, opts), name)
+
+    return refObject;
   }
-}
 
-// Fallback to using FileReader and a popup
-: function saveAs (blob, name, opts, popup) {
-  // Open a popup immediately do go around popup blocker
-  // Mostly only avalible on user interaction and the fileReader is async so...
-  popup = popup || open('', '_blank')
-  if (popup) {
-    popup.document.title =
-    popup.document.body.innerText = 'downloading...'
-  }
-
-  if (typeof blob === 'string') return download(blob, name, opts)
-
-  var force = blob.type === 'application/octet-stream'
-  var isSafari = /constructor/i.test(_global.HTMLElement) || _global.safari
-  var isChromeIOS = /CriOS\/[\d]+/.test(navigator.userAgent)
-
-  if ((isChromeIOS || (force && isSafari)) && typeof FileReader === 'object') {
-    // Safari doesn't allow downloading of blob urls
-    var reader = new FileReader()
-    reader.onloadend = function () {
-      var url = reader.result
-      url = isChromeIOS ? url : url.replace(/^data:[^;]*;/, 'data:attachment/file;')
-      if (popup) popup.location.href = url
-      else location = url
-      popup = null // reverse-tabnabbing #460
-    }
-    reader.readAsDataURL(blob)
-  } else {
-    var URL = _global.URL || _global.webkitURL
-    var url = URL.createObjectURL(blob)
-    if (popup) popup.location = url
-    else location.href = url
-    popup = null // reverse-tabnabbing #460
-    setTimeout(function () { URL.revokeObjectURL(url) }, 4E4) // 40s
+  function getWrappedName(outerType, innerType, wrapperName) {
+    var functionName = innerType.displayName || innerType.name || '';
+    return outerType.displayName || (functionName !== '' ? wrapperName + "(" + functionName + ")" : wrapperName);
   }
-}
 
-_global.saveAs = saveAs.saveAs = saveAs
+  function getContextName(type) {
+    return type.displayName || 'Context';
+  }
 
-if (typeof module !== 'undefined') {
-  module.exports = saveAs;
-}
-</script>
+  function getComponentName(type) {
+    if (type == null) {
+      // Host root, text node or just invalid type.
+      return null;
+    }
 
-    <!-- Icons -->
-    <script>
-      $("#jswarning").hide()
-      feather.replace()
-    </script>
+    {
+      if (typeof type.tag === 'number') {
+        error('Received an unexpected object in getComponentName(). ' + 'This is likely a bug in React. Please file an issue.');
+      }
+    }
 
-    <script id="results">
-      var results = {
-            "testdir/1.txt": {
-              name: "1.txt",
-              path: "testdir/1.txt",
-              size: "2 Bytes",
-              caption: "<p>Files obtained from a directory. This file starts with 1. This value has been dynamically inferred from the given pattern.</p>\n",
-              job_properties: {
-                rule: "e",
-                wildcards: "name=1",
-                params: ""
-              },
-              data_uri: function() { return "data:text/plain;charset=utf8;filename=1.txt;base64,MQo="; },
-              thumbnail_uri: function() { return null; }
-            },
-            "testdir/2.txt": {
-              name: "2.txt",
-              path: "testdir/2.txt",
-              size: "2 Bytes",
-              caption: "<p>Files obtained from a directory. This file starts with 2. This value has been dynamically inferred from the given pattern.</p>\n",
-              job_properties: {
-                rule: "e",
-                wildcards: "name=2",
-                params: ""
-              },
-              data_uri: function() { return "data:text/plain;charset=utf8;filename=2.txt;base64,Mgo="; },
-              thumbnail_uri: function() { return null; }
-            },
-            "testdir/3.txt": {
-              name: "3.txt",
-              path: "testdir/3.txt",
-              size: "2 Bytes",
-              caption: "<p>Files obtained from a directory. This file starts with 3. This value has been dynamically inferred from the given pattern.</p>\n",
-              job_properties: {
-                rule: "e",
-                wildcards: "name=3",
-                params: ""
-              },
-              data_uri: function() { return "data:text/plain;charset=utf8;filename=3.txt;base64,Mwo="; },
-              thumbnail_uri: function() { return null; }
-            },
-            "test.csv": {
-              name: "test.csv",
-              path: "test.csv",
-              size: "113.2 kB",
-              caption: "<p>An example table.</p>\n",
-              job_properties: {
-                rule: "d",
-                wildcards: "",
-                params: ""
-              },
-              data_uri: function() { return "data:text/csv;charset=utf8;filename=test.csv;base64,street,city,zip,state,beds,baths,sq__ft,type,sale_date,price,latitude,longitude3526 HIGH ST,SACRAMENTO,95838,CA,2,1,836,Residential,Wed May 21 00:00:00 EDT 2008,59222,38.631913,-121.43487951 OMAHA CT,SACRAMENTO,95823,CA,3,1,1167,Residential,Wed May 21 00:00:00 EDT 2008,68212,38.478902,-121.4310282796 BRANCH ST,SACRAMENTO,95815,CA,2,1,796,Residential,Wed May 21 00:00:00 EDT 2008,68880,38.618305,-121.4438392805 JANETTE WAY,SACRAMENTO,95815,CA,2,1,852,Residential,Wed May 21 00:00:00 EDT 2008,69307,38.616835,-121.4391466001 MCMAHON DR,SACRAMENTO,95824,CA,2,1,797,Residential,Wed May 21 00:00:00 EDT 2008,81900,38.51947,-121.4357685828 PEPPERMILL CT,SACRAMENTO,95841,CA,3,1,1122,Condo,Wed May 21 00:00:00 EDT 2008,89921,38.662595,-121.3278136048 OGDEN NASH WAY,SACRAMENTO,95842,CA,3,2,1104,Residential,Wed May 21 00:00:00 EDT 2008,90895,38.681659,-121.3517052561 19TH AVE,SACRAMENTO,95820,CA,3,1,1177,Residential,Wed May 21 00:00:00 EDT 2008,91002,38.535092,-121.48136711150 TRINITY RIVER DR Unit 114,RANCHO CORDOVA,95670,CA,2,2,941,Condo,Wed May 21 00:00:00 EDT 2008,94905,38.621188,-121.2705557325 10TH ST,RIO LINDA,95673,CA,3,2,1146,Residential,Wed May 21 00:00:00 EDT 2008,98937,38.700909,-121.442979645 MORRISON AVE,SACRAMENTO,95838,CA,3,2,909,Residential,Wed May 21 00:00:00 EDT 2008,100309,38.637663,-121.451524085 FAWN CIR,SACRAMENTO,95823,CA,3,2,1289,Residential,Wed May 21 00:00:00 EDT 2008,106250,38.470746,-121.4589182930 LA ROSA RD,SACRAMENTO,95815,CA,1,1,871,Residential,Wed May 21 00:00:00 EDT 2008,106852,38.618698,-121.4358332113 KIRK WAY,SACRAMENTO,95822,CA,3,1,1020,Residential,Wed May 21 00:00:00 EDT 2008,107502,38.482215,-121.4926034533 LOCH HAVEN WAY,SACRAMENTO,95842,CA,2,2,1022,Residential,Wed May 21 00:00:00 EDT 2008,108750,38.672914,-121.359347340 HAMDEN PL,SACRAMENTO,95842,CA,2,2,1134,Condo,Wed May 21 00:00:00 EDT 2008,110700,38.700051,-121.3512786715 6TH ST,RIO LINDA,95673,CA,2,1,844,Residential,Wed May 21 00:00:00 EDT 2008,113263,38.689591,-121.4522396236 LONGFORD DR Unit 1,CITRUS HEIGHTS,95621,CA,2,1,795,Condo,Wed May 21 00:00:00 EDT 2008,116250,38.679776,-121.314089250 PERALTA AVE,SACRAMENTO,95833,CA,2,1,588,Residential,Wed May 21 00:00:00 EDT 2008,120000,38.612099,-121.469095113 LEEWILL AVE,RIO LINDA,95673,CA,3,2,1356,Residential,Wed May 21 00:00:00 EDT 2008,121630,38.689999,-121.463226118 STONEHAND AVE,CITRUS HEIGHTS,95621,CA,3,2,1118,Residential,Wed May 21 00:00:00 EDT 2008,122000,38.707851,-121.3207074882 BANDALIN WAY,SACRAMENTO,95823,CA,4,2,1329,Residential,Wed May 21 00:00:00 EDT 2008,122682,38.468173,-121.4440717511 OAKVALE CT,NORTH HIGHLANDS,95660,CA,4,2,1240,Residential,Wed May 21 00:00:00 EDT 2008,123000,38.702792,-121.382219 PASTURE CT,SACRAMENTO,95834,CA,3,2,1601,Residential,Wed May 21 00:00:00 EDT 2008,124100,38.628631,-121.4880973729 BAINBRIDGE DR,NORTH HIGHLANDS,95660,CA,3,2,901,Residential,Wed May 21 00:00:00 EDT 2008,125000,38.701499,-121.376223828 BLACKFOOT WAY,ANTELOPE,95843,CA,3,2,1088,Residential,Wed May 21 00:00:00 EDT 2008,126640,38.70974,-121.373774108 NORTON WAY,SACRAMENTO,95820,CA,3,1,963,Residential,Wed May 21 00:00:00 EDT 2008,127281,38.537526,-121.4783151469 JANRICK AVE,SACRAMENTO,95832,CA,3,2,1119,Residential,Wed May 21 00:00:00 EDT 2008,129000,38.476472,-121.5017119861 CULP WAY,SACRAMENTO,95827,CA,4,2,1380,Residential,Wed May 21 00:00:00 EDT 2008,131200,38.558423,-121.3279487825 CREEK VALLEY CIR,SACRAMENTO,95828,CA,3,2,1248,Residential,Wed May 21 00:00:00 EDT 2008,132000,38.472122,-121.4041995201 LAGUNA OAKS DR Unit 140,ELK GROVE,95758,CA,2,2,1039,Condo,Wed May 21 00:00:00 EDT 2008,133000,38.423251,-121.4444896768 MEDORA DR,NORTH HIGHLANDS,95660,CA,3,2,1152,Residential,Wed May 21 00:00:00 EDT 2008,134555,38.691161,-121.371923100 EXPLORER DR,SACRAMENTO,95827,CA,3,2,1380,Residential,Wed May 21 00:00:00 EDT 2008,136500,38.566663,-121.3326447944 DOMINION WAY,ELVERTA,95626,CA,3,2,1116,Residential,Wed May 21 00:00:00 EDT 2008,138750,38.713182,-121.4112275201 LAGUNA OAKS DR Unit 162,ELK GROVE,95758,CA,2,2,1039,Condo,Wed May 21 00:00:00 EDT 2008,141000,38.423251,-121.4444893920 SHINING STAR DR,SACRAMENTO,95823,CA,3,2,1418,Residential,Wed May 21 00:00:00 EDT 2008,146250,38.48742,-121.4624595031 CORVAIR ST,NORTH HIGHLANDS,95660,CA,3,2,1082,Residential,Wed May 21 00:00:00 EDT 2008,147308,38.658246,-121.3754697661 NIXOS WAY,SACRAMENTO,95823,CA,4,2,1472,Residential,Wed May 21 00:00:00 EDT 2008,148750,38.479553,-121.4633177044 CARTHY WAY,SACRAMENTO,95828,CA,4,2,1146,Residential,Wed May 21 00:00:00 EDT 2008,149593,38.49857,-121.4209252442 LARKSPUR LN,SACRAMENTO,95825,CA,1,1,760,Condo,Wed May 21 00:00:00 EDT 2008,150000,38.58514,-121.4037364800 WESTLAKE PKWY Unit 2109,SACRAMENTO,95835,CA,2,2,1304,Condo,Wed May 21 00:00:00 EDT 2008,152000,38.658812,-121.5423452178 63RD AVE,SACRAMENTO,95822,CA,3,2,1207,Residential,Wed May 21 00:00:00 EDT 2008,154000,38.493955,-121.489668718 ELK WAY,ELK GROVE,95624,CA,3,2,1056,Residential,Wed May 21 00:00:00 EDT 2008,156896,38.41653,-121.3796535708 RIDGEPOINT DR,ANTELOPE,95843,CA,2,2,1043,Residential,Wed May 21 00:00:00 EDT 2008,161250,38.72027,-121.3315557315 KOALA CT,NORTH HIGHLANDS,95660,CA,4,2,1587,Residential,Wed May 21 00:00:00 EDT 2008,161500,38.699251,-121.3714142622 ERIN DR,SACRAMENTO,95833,CA,4,1,1120,Residential,Wed May 21 00:00:00 EDT 2008,164000,38.613765,-121.4886948421 SUNBLAZE WAY,SACRAMENTO,95823,CA,4,2,1580,Residential,Wed May 21 00:00:00 EDT 2008,165000,38.450543,-121.4325387420 ALIX PKWY,SACRAMENTO,95823,CA,4,1,1955,Residential,Wed May 21 00:00:00 EDT 2008,166357,38.489405,-121.4528113820 NATOMA WAY,SACRAMENTO,95838,CA,4,2,1656,Residential,Wed May 21 00:00:00 EDT 2008,166357,38.636748,-121.4221594431 GREEN TREE DR,SACRAMENTO,95823,CA,3,2,1477,Residential,Wed May 21 00:00:00 EDT 2008,168000,38.499954,-121.4544699417 SARA ST,ELK GROVE,95624,CA,3,2,1188,Residential,Wed May 21 00:00:00 EDT 2008,170000,38.415518,-121.3705278299 HALBRITE WAY,SACRAMENTO,95828,CA,4,2,1590,Residential,Wed May 21 00:00:00 EDT 2008,173000,38.473814,-121.47223 KALLIE KAY LN,SACRAMENTO,95823,CA,3,2,1463,Residential,Wed May 21 00:00:00 EDT 2008,174250,38.477553,-121.4194638156 STEINBECK WAY,SACRAMENTO,95828,CA,4,2,1714,Residential,Wed May 21 00:00:00 EDT 2008,174313,38.474853,-121.4063267957 VALLEY GREEN DR,SACRAMENTO,95823,CA,3,2,1185,Residential,Wed May 21 00:00:00 EDT 2008,178480,38.465184,-121.4349251122 WILD POPPY CT,GALT,95632,CA,3,2,1406,Residential,Wed May 21 00:00:00 EDT 2008,178760,38.287789,-121.2947154520 BOMARK WAY,SACRAMENTO,95842,CA,4,2,1943,Multi-Family,Wed May 21 00:00:00 EDT 2008,179580,38.665724,-121.3585769012 KIEFER BLVD,SACRAMENTO,95826,CA,3,2,1172,Residential,Wed May 21 00:00:00 EDT 2008,181000,38.547011,-121.3662175332 SANDSTONE ST,CARMICHAEL,95608,CA,3,1,1152,Residential,Wed May 21 00:00:00 EDT 2008,181872,38.662105,-121.3139455993 SAWYER CIR,SACRAMENTO,95823,CA,4,3,1851,Residential,Wed May 21 00:00:00 EDT 2008,182587,38.4473,-121.4352184844 CLYDEBANK WAY,ANTELOPE,95843,CA,3,2,1215,Residential,Wed May 21 00:00:00 EDT 2008,182716,38.714609,-121.347887306 CAMELLIA WAY,GALT,95632,CA,3,2,1130,Residential,Wed May 21 00:00:00 EDT 2008,182750,38.260443,-121.2978649021 MADISON AVE,ORANGEVALE,95662,CA,4,2,1603,Residential,Wed May 21 00:00:00 EDT 2008,183200,38.664186,-121.217511404 6TH ST,GALT,95632,CA,3,1,1479,Residential,Wed May 21 00:00:00 EDT 2008,188741,38.251808,-121.3024938317 SUNNY CREEK WAY,SACRAMENTO,95823,CA,3,2,1420,Residential,Wed May 21 00:00:00 EDT 2008,189000,38.459041,-121.4246442617 BASS CT,SACRAMENTO,95826,CA,3,2,1280,Residential,Wed May 21 00:00:00 EDT 2008,192067,38.560767,-121.3774717005 TIANT WAY,ELK GROVE,95758,CA,3,2,1586,Residential,Wed May 21 00:00:00 EDT 2008,194000,38.422811,-121.4232857895 CABER WAY,ANTELOPE,95843,CA,3,2,1362,Residential,Wed May 21 00:00:00 EDT 2008,194818,38.711279,-121.3934497624 BOGEY CT,SACRAMENTO,95828,CA,4,4,2162,Multi-Family,Wed May 21 00:00:00 EDT 2008,195000,38.48009,-121.4151026930 HAMPTON COVE WAY,SACRAMENTO,95823,CA,3,2,1266,Residential,Wed May 21 00:00:00 EDT 2008,198000,38.44004,-121.4210128708 MESA BROOK WAY,ELK GROVE,95624,CA,4,2,1715,Residential,Wed May 21 00:00:00 EDT 2008,199500,38.44076,-121.385792120 GRANT LN,FOLSOM,95630,CA,3,2,1820,Residential,Wed May 21 00:00:00 EDT 2008,200000,38.687742,-121.171045907 ELLERSLEE DR,CARMICHAEL,95608,CA,3,1,936,Residential,Wed May 21 00:00:00 EDT 2008,200000,38.664468,-121.3268317 SERASPI CT,SACRAMENTO,95834,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,206000,38.631481,-121.50188170 PENHOW CIR,SACRAMENTO,95834,CA,3,2,1511,Residential,Wed May 21 00:00:00 EDT 2008,208000,38.653439,-121.5351698345 STAR THISTLE WAY,SACRAMENTO,95823,CA,4,2,1590,Residential,Wed May 21 00:00:00 EDT 2008,212864,38.454349,-121.4392399080 FRESCA WAY,ELK GROVE,95758,CA,4,2,1596,Residential,Wed May 21 00:00:00 EDT 2008,221000,38.427818,-121.424026391 NATALINO CIR,SACRAMENTO,95835,CA,2,2,1341,Residential,Wed May 21 00:00:00 EDT 2008,221000,38.67307,-121.5063738373 BLACKMAN WAY,ELK GROVE,95624,CA,5,3,2136,Residential,Wed May 21 00:00:00 EDT 2008,223058,38.435436,-121.3945369837 CORTE DORADO CT,ELK GROVE,95624,CA,4,2,1616,Residential,Wed May 21 00:00:00 EDT 2008,227887,38.400676,-121.381015037 J PKWY,SACRAMENTO,95823,CA,3,2,1478,Residential,Wed May 21 00:00:00 EDT 2008,231477,38.491399,-121.44354710245 LOS PALOS DR,RANCHO CORDOVA,95670,CA,3,2,1287,Residential,Wed May 21 00:00:00 EDT 2008,234697,38.593699,-121.310896613 NAVION DR,CITRUS HEIGHTS,95621,CA,4,2,1277,Residential,Wed May 21 00:00:00 EDT 2008,235000,38.702855,-121.313082887 AZEVEDO DR,SACRAMENTO,95833,CA,4,2,1448,Residential,Wed May 21 00:00:00 EDT 2008,236000,38.618457,-121.5094399186 KINBRACE CT,SACRAMENTO,95829,CA,4,3,2235,Residential,Wed May 21 00:00:00 EDT 2008,236685,38.463355,-121.3589364243 MIDDLEBURY WAY,MATHER,95655,CA,3,2,2093,Residential,Wed May 21 00:00:00 EDT 2008,237800,38.547991,-121.2804831028 FALLON PLACE CT,RIO LINDA,95673,CA,3,2,1193,Residential,Wed May 21 00:00:00 EDT 2008,240122,38.693818,-121.4411534804 NORIKER DR,ELK GROVE,95757,CA,3,2,2163,Residential,Wed May 21 00:00:00 EDT 2008,242638,38.400974,-121.4484247713 HARVEST WOODS DR,SACRAMENTO,95828,CA,3,2,1269,Residential,Wed May 21 00:00:00 EDT 2008,244000,38.478198,-121.4129112866 KARITSA AVE,SACRAMENTO,95833,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,244500,38.626671,-121.525976913 RICHEVE WAY,SACRAMENTO,95828,CA,3,1,958,Residential,Wed May 21 00:00:00 EDT 2008,244960,38.502519,-121.4207698636 TEGEA WAY,ELK GROVE,95624,CA,5,3,2508,Residential,Wed May 21 00:00:00 EDT 2008,245918,38.443832,-121.3820875448 MAIDSTONE WAY,CITRUS HEIGHTS,95621,CA,3,2,1305,Residential,Wed May 21 00:00:00 EDT 2008,250000,38.665395,-121.29328818 OLLIE CT,ELK GROVE,95758,CA,4,2,1591,Residential,Wed May 21 00:00:00 EDT 2008,250000,38.444909,-121.4123454010 ALEX LN,CARMICHAEL,95608,CA,2,2,1326,Condo,Wed May 21 00:00:00 EDT 2008,250134,38.637028,-121.3129634901 MILLNER WAY,ELK GROVE,95757,CA,3,2,1843,Residential,Wed May 21 00:00:00 EDT 2008,254200,38.38692,-121.4473494818 BRITTNEY LEE CT,SACRAMENTO,95841,CA,4,2,1921,Residential,Wed May 21 00:00:00 EDT 2008,254200,38.653917,-121.342185529 LAGUNA PARK DR,ELK GROVE,95758,CA,5,3,2790,Residential,Wed May 21 00:00:00 EDT 2008,258000,38.42568,-121.438062230 CANDELA CIR,SACRAMENTO,95835,CA,3,2,1541,Residential,Wed May 21 00:00:00 EDT 2008,260000,38.656251,-121.5475724900 71ST ST,SACRAMENTO,95820,CA,3,1,1018,Residential,Wed May 21 00:00:00 EDT 2008,260014,38.53151,-121.42108912209 CONSERVANCY WAY,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,263500,38.553867,-121.2191414236 NATOMAS CENTRAL DR,SACRAMENTO,95834,CA,3,2,1672,Condo,Wed May 21 00:00:00 EDT 2008,265000,38.648879,-121.5440235615 LUPIN LN,POLLOCK PINES,95726,CA,3,2,1380,Residential,Wed May 21 00:00:00 EDT 2008,265000,38.708315,-120.6038725625 JAMES WAY,SACRAMENTO,95822,CA,3,1,975,Residential,Wed May 21 00:00:00 EDT 2008,271742,38.523947,-121.4849467842 LAHONTAN CT,SACRAMENTO,95829,CA,4,3,2372,Residential,Wed May 21 00:00:00 EDT 2008,273750,38.472976,-121.3186336850 21ST ST,SACRAMENTO,95822,CA,3,2,1446,Residential,Wed May 21 00:00:00 EDT 2008,275086,38.502194,-121.4907952900 BLAIR RD,POLLOCK PINES,95726,CA,2,2,1284,Residential,Wed May 21 00:00:00 EDT 2008,280908,38.75485,-120.604762064 EXPEDITION WAY,SACRAMENTO,95832,CA,4,3,3009,Residential,Wed May 21 00:00:00 EDT 2008,280987,38.474099,-121.4907112912 NORCADE CIR,SACRAMENTO,95826,CA,8,4,3612,Multi-Family,Wed May 21 00:00:00 EDT 2008,282400,38.559505,-121.3648399507 SEA CLIFF WAY,ELK GROVE,95758,CA,4,2,2056,Residential,Wed May 21 00:00:00 EDT 2008,285000,38.410992,-121.4790438882 AUTUMN GOLD CT,ELK GROVE,95624,CA,4,2,1993,Residential,Wed May 21 00:00:00 EDT 2008,287417,38.4439,-121.372555322 WHITE LOTUS WAY,ELK GROVE,95757,CA,3,2,1857,Residential,Wed May 21 00:00:00 EDT 2008,291000,38.391538,-121.4425961838 CASTRO WAY,SACRAMENTO,95818,CA,2,1,1126,Residential,Wed May 21 00:00:00 EDT 2008,292024,38.556098,-121.49078710158 CRAWFORD WAY,SACRAMENTO,95827,CA,4,4,2213,Multi-Family,Wed May 21 00:00:00 EDT 2008,297000,38.5703,-121.3157357731 MASTERS ST,ELK GROVE,95758,CA,5,3,2494,Residential,Wed May 21 00:00:00 EDT 2008,297000,38.442031,-121.4108734925 PERCHERON DR,ELK GROVE,95757,CA,3,2,1843,Residential,Wed May 21 00:00:00 EDT 2008,298000,38.40154,-121.4476492010 PROMONTORY POINT LN,GOLD RIVER,95670,CA,2,2,1520,Residential,Wed May 21 00:00:00 EDT 2008,299000,38.62869,-121.2616694727 SAVOIE WAY,SACRAMENTO,95835,CA,5,3,2800,Residential,Wed May 21 00:00:00 EDT 2008,304037,38.658182,-121.5495218664 MAGNOLIA HILL WAY,ELK GROVE,95624,CA,4,2,2309,Residential,Wed May 21 00:00:00 EDT 2008,311000,38.442352,-121.3896759570 HARVEST ROSE WAY,SACRAMENTO,95827,CA,5,3,2367,Residential,Wed May 21 00:00:00 EDT 2008,315537,38.555993,-121.3403524359 CREGAN CT,RANCHO CORDOVA,95742,CA,5,4,3516,Residential,Wed May 21 00:00:00 EDT 2008,320000,38.545128,-121.2249225337 DUSTY ROSE WAY,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,320000,38.528575,-121.22868929 SUTTERS GOLD DR,SACRAMENTO,95826,CA,4,3,1914,Residential,Wed May 21 00:00:00 EDT 2008,328360,38.550848,-121.3702248025 PEERLESS AVE,ORANGEVALE,95662,CA,2,1,1690,Residential,Wed May 21 00:00:00 EDT 2008,334150,38.71147,-121.2162144620 WELERA WAY,ELK GROVE,95757,CA,3,3,2725,Residential,Wed May 21 00:00:00 EDT 2008,335750,38.398609,-121.4501489723 TERRAPIN CT,ELK GROVE,95757,CA,4,3,2354,Residential,Wed May 21 00:00:00 EDT 2008,335750,38.403492,-121.4302242115 SMOKESTACK WAY,SACRAMENTO,95833,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,339500,38.602416,-121.542965100 REBECCA WAY,FOLSOM,95630,CA,3,2,2185,Residential,Wed May 21 00:00:00 EDT 2008,344250,38.68479,-121.1491999488 OAK VILLAGE WAY,ELK GROVE,95758,CA,4,2,1801,Residential,Wed May 21 00:00:00 EDT 2008,346210,38.41333,-121.4049998495 DARTFORD DR,SACRAMENTO,95823,CA,3,3,1961,Residential,Wed May 21 00:00:00 EDT 2008,347029,38.448507,-121.4213466708 PONTA DO SOL WAY,ELK GROVE,95757,CA,4,2,3134,Residential,Wed May 21 00:00:00 EDT 2008,347650,38.380635,-121.4255384143 SEA MEADOW WAY,SACRAMENTO,95823,CA,4,3,1915,Residential,Wed May 21 00:00:00 EDT 2008,351300,38.46534,-121.4575193020 RICHARDSON CIR,EL DORADO HILLS,95762,CA,3,2,0,Residential,Wed May 21 00:00:00 EDT 2008,352000,38.691299,-121.0817528082 LINDA ISLE LN,SACRAMENTO,95831,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,370000,38.4772,-121.521515300 MURIETA SOUTH PKWY,RANCHO MURIETA,95683,CA,4,3,2734,Residential,Wed May 21 00:00:00 EDT 2008,370500,38.4874,-121.07512911215 SHARRMONT CT,WILTON,95693,CA,3,2,2110,Residential,Wed May 21 00:00:00 EDT 2008,372000,38.35062,-121.2283497105 DANBERG WAY,ELK GROVE,95757,CA,5,3,3164,Residential,Wed May 21 00:00:00 EDT 2008,375000,38.4019,-121.4203885579 JERRY LITELL WAY,SACRAMENTO,95835,CA,5,3,3599,Residential,Wed May 21 00:00:00 EDT 2008,381300,38.677126,-121.5005191050 FOXHALL WAY,SACRAMENTO,95831,CA,4,2,2054,Residential,Wed May 21 00:00:00 EDT 2008,381942,38.509819,-121.5196617837 ABBINGTON WAY,ANTELOPE,95843,CA,4,2,1830,Residential,Wed May 21 00:00:00 EDT 2008,387731,38.709873,-121.3394721300 F ST,SACRAMENTO,95814,CA,3,3,1627,Residential,Wed May 21 00:00:00 EDT 2008,391000,38.58355,-121.4872896801 RAWLEY WAY,ELK GROVE,95757,CA,4,3,3440,Residential,Wed May 21 00:00:00 EDT 2008,394470,38.408351,-121.4239251693 SHELTER COVE DR,GREENWOOD,95635,CA,3,2,2846,Residential,Wed May 21 00:00:00 EDT 2008,395000,38.945357,-120.9088229361 WADDELL LN,ELK GROVE,95624,CA,4,3,2359,Residential,Wed May 21 00:00:00 EDT 2008,400186,38.450829,-121.34992810 SEA FOAM CT,SACRAMENTO,95831,CA,3,3,2052,Residential,Wed May 21 00:00:00 EDT 2008,415000,38.487885,-121.5459476945 RIO TEJO WAY,ELK GROVE,95757,CA,5,3,3433,Residential,Wed May 21 00:00:00 EDT 2008,425000,38.385638,-121.4226164186 TULIP PARK WAY,RANCHO CORDOVA,95742,CA,5,3,3615,Residential,Wed May 21 00:00:00 EDT 2008,430000,38.550617,-121.235269278 DAIRY CT,ELK GROVE,95624,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,445000,38.420338,-121.363757207 ORANGE BLOSSOM CIR Unit C,FOLSOM,95630,CA,5,3,2687,Residential,Wed May 21 00:00:00 EDT 2008,460000,38.646273,-121.1753226507 RIO DE ONAR WAY,ELK GROVE,95757,CA,4,3,2724,Residential,Wed May 21 00:00:00 EDT 2008,461000,38.38253,-121.4280077004 RAWLEY WAY,ELK GROVE,95757,CA,4,3,3440,Residential,Wed May 21 00:00:00 EDT 2008,489332,38.406421,-121.4220816503 RIO DE ONAR WAY,ELK GROVE,95757,CA,5,4,3508,Residential,Wed May 21 00:00:00 EDT 2008,510000,38.38253,-121.4280382217 APPALOOSA CT,FOLSOM,95630,CA,4,2,2462,Residential,Wed May 21 00:00:00 EDT 2008,539000,38.655167,-121.090178868 HILDEBRAND CIR,FOLSOM,95630,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,585000,38.670947,-121.0977276030 PALERMO WAY,EL DORADO HILLS,95762,CA,4,3,0,Residential,Wed May 21 00:00:00 EDT 2008,600000,38.672761,-121.0503784070 REDONDO DR,EL DORADO HILLS,95762,CA,4,3,0,Residential,Wed May 21 00:00:00 EDT 2008,606238,38.666807,-121.064834004 CRESTA WAY,SACRAMENTO,95864,CA,3,3,2325,Residential,Wed May 21 00:00:00 EDT 2008,660000,38.591618,-121.370626315 JUMEL CT,EL DORADO HILLS,95762,CA,6,5,0,Residential,Wed May 21 00:00:00 EDT 2008,830000,38.669931,-121.059586272 LONGFORD DR Unit 1,CITRUS HEIGHTS,95621,CA,2,1,795,Condo,Tue May 20 00:00:00 EDT 2008,69000,38.680923,-121.3139453432 Y ST,SACRAMENTO,95817,CA,4,2,1099,Residential,Tue May 20 00:00:00 EDT 2008,70000,38.554967,-121.4680469512 EMERALD PARK DR Unit 3,ELK GROVE,95624,CA,2,1,840,Condo,Tue May 20 00:00:00 EDT 2008,71000,38.40573,-121.3698323132 CLAY ST,SACRAMENTO,95815,CA,2,1,800,Residential,Tue May 20 00:00:00 EDT 2008,78000,38.624678,-121.4392035221 38TH AVE,SACRAMENTO,95824,CA,2,1,746,Residential,Tue May 20 00:00:00 EDT 2008,78400,38.518044,-121.4435556112 HERMOSA ST,SACRAMENTO,95822,CA,3,1,1067,Residential,Tue May 20 00:00:00 EDT 2008,80000,38.515125,-121.480416483 ARCADE BLVD,SACRAMENTO,95815,CA,4,2,1316,Residential,Tue May 20 00:00:00 EDT 2008,89000,38.623571,-121.454884671 SONOMA AVE,SACRAMENTO,95815,CA,3,1,1337,Residential,Tue May 20 00:00:00 EDT 2008,90000,38.622953,-121.4501425980 79TH ST,SACRAMENTO,95824,CA,2,1,868,Residential,Tue May 20 00:00:00 EDT 2008,90000,38.518373,-121.4117797607 ELDER CREEK RD,SACRAMENTO,95824,CA,3,1,924,Residential,Tue May 20 00:00:00 EDT 2008,92000,38.51055,-121.4147685028 14TH AVE,SACRAMENTO,95820,CA,2,1,610,Residential,Tue May 20 00:00:00 EDT 2008,93675,38.53942,-121.44689414788 NATCHEZ CT,RANCHO MURIETA,95683,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,97750,38.492287,-121.1000321069 ACACIA AVE,SACRAMENTO,95815,CA,2,1,1220,Residential,Tue May 20 00:00:00 EDT 2008,98000,38.621998,-121.4422385201 LAGUNA OAKS DR Unit 199,ELK GROVE,95758,CA,1,1,722,Condo,Tue May 20 00:00:00 EDT 2008,98000,38.423251,-121.4444893847 LAS PASAS WAY,SACRAMENTO,95864,CA,3,1,1643,Residential,Tue May 20 00:00:00 EDT 2008,99000,38.588672,-121.3739165201 LAGUNA OAKS DR Unit 172,ELK GROVE,95758,CA,1,1,722,Condo,Tue May 20 00:00:00 EDT 2008,100000,38.423251,-121.4444891121 CREEKSIDE WAY,GALT,95632,CA,3,1,1080,Residential,Tue May 20 00:00:00 EDT 2008,106716,38.241514,-121.3121995307 CABRILLO WAY,SACRAMENTO,95820,CA,3,1,1039,Residential,Tue May 20 00:00:00 EDT 2008,111000,38.52712,-121.4353483725 DON JULIO BLVD,NORTH HIGHLANDS,95660,CA,3,1,1051,Residential,Tue May 20 00:00:00 EDT 2008,111000,38.67895,-121.3794064803 MCCLOUD DR,SACRAMENTO,95842,CA,2,2,967,Residential,Tue May 20 00:00:00 EDT 2008,114800,38.682279,-121.35281710542 SILVERWOOD WAY,RANCHO CORDOVA,95670,CA,3,1,1098,Residential,Tue May 20 00:00:00 EDT 2008,120108,38.587156,-121.2957786318 39TH AVE,SACRAMENTO,95824,CA,3,1,1050,Residential,Tue May 20 00:00:00 EDT 2008,123225,38.518942,-121.430158211 MCDANIEL CIR,SACRAMENTO,95838,CA,3,2,1110,Residential,Tue May 20 00:00:00 EDT 2008,123750,38.636565,-121.4603833800 LYNHURST WAY,NORTH HIGHLANDS,95660,CA,3,1,888,Residential,Tue May 20 00:00:00 EDT 2008,125000,38.650445,-121.3748616139 HERMOSA ST,SACRAMENTO,95822,CA,3,2,1120,Residential,Tue May 20 00:00:00 EDT 2008,125000,38.514665,-121.4804112505 RHINE WAY,ELVERTA,95626,CA,3,2,1080,Residential,Tue May 20 00:00:00 EDT 2008,126000,38.717976,-121.4076843692 PAYNE WAY,NORTH HIGHLANDS,95660,CA,3,1,957,Residential,Tue May 20 00:00:00 EDT 2008,129000,38.66654,-121.378298604 MORRISON AVE,SACRAMENTO,95838,CA,2,1,952,Residential,Tue May 20 00:00:00 EDT 2008,134000,38.637678,-121.452476648 SANTA ANA AVE,SACRAMENTO,95838,CA,3,2,1211,Residential,Tue May 20 00:00:00 EDT 2008,135000,38.658478,-121.45040914 ASHLEY OAKS CT,SACRAMENTO,95815,CA,3,2,1264,Residential,Tue May 20 00:00:00 EDT 2008,135500,38.61779,-121.4367653174 NORTHVIEW DR,SACRAMENTO,95833,CA,3,1,1080,Residential,Tue May 20 00:00:00 EDT 2008,140000,38.623817,-121.477827840 TRANQUIL LN,GALT,95632,CA,3,2,1266,Residential,Tue May 20 00:00:00 EDT 2008,140000,38.270617,-121.2992055333 PRIMROSE DR Unit 19A,FAIR OAKS,95628,CA,2,2,994,Condo,Tue May 20 00:00:00 EDT 2008,142500,38.662785,-121.2762721035 MILLET WAY,SACRAMENTO,95834,CA,3,2,1202,Residential,Tue May 20 00:00:00 EDT 2008,143500,38.631056,-121.485085201 LAGUNA OAKS DR Unit 126,ELK GROVE,95758,CA,0,0,0,Condo,Tue May 20 00:00:00 EDT 2008,145000,38.423251,-121.4444893328 22ND AVE,SACRAMENTO,95820,CA,2,1,722,Residential,Tue May 20 00:00:00 EDT 2008,145000,38.532727,-121.4707838001 HARTWICK WAY,SACRAMENTO,95828,CA,4,2,1448,Residential,Tue May 20 00:00:00 EDT 2008,145000,38.488623,-121.4105827812 HARTWICK WAY,SACRAMENTO,95828,CA,3,2,1188,Residential,Tue May 20 00:00:00 EDT 2008,145000,38.488611,-121.4128084207 PAINTER WAY,NORTH HIGHLANDS,95660,CA,4,2,1183,Residential,Tue May 20 00:00:00 EDT 2008,146000,38.692915,-121.3674977458 WINKLEY WAY,SACRAMENTO,95822,CA,3,1,1320,Residential,Tue May 20 00:00:00 EDT 2008,148500,38.487444,-121.4913668354 SUNRISE WOODS WAY,SACRAMENTO,95828,CA,3,2,1117,Residential,Tue May 20 00:00:00 EDT 2008,149000,38.473288,-121.39638116 COTTONMILL CIR,SACRAMENTO,95828,CA,3,2,1364,Residential,Tue May 20 00:00:00 EDT 2008,150000,38.482876,-121.4059124660 CEDARWOOD WAY,SACRAMENTO,95823,CA,4,2,1310,Residential,Tue May 20 00:00:00 EDT 2008,150000,38.484834,-121.4493169254 HARROGATE WAY,ELK GROVE,95758,CA,2,2,1006,Residential,Tue May 20 00:00:00 EDT 2008,152000,38.420138,-121.4121796716 TAREYTON WAY,CITRUS HEIGHTS,95621,CA,3,2,1104,Residential,Tue May 20 00:00:00 EDT 2008,156000,38.693724,-121.3071692028 ROBERT WAY,SACRAMENTO,95825,CA,2,1,810,Residential,Tue May 20 00:00:00 EDT 2008,156000,38.609982,-121.4192639346 AIZENBERG CIR,ELK GROVE,95624,CA,2,2,1123,Residential,Tue May 20 00:00:00 EDT 2008,156000,38.41875,-121.3700194524 LOCH HAVEN WAY,SACRAMENTO,95842,CA,2,1,904,Residential,Tue May 20 00:00:00 EDT 2008,157788,38.67273,-121.3596457140 BLUE SPRINGS WAY,CITRUS HEIGHTS,95621,CA,3,2,1156,Residential,Tue May 20 00:00:00 EDT 2008,161653,38.720653,-121.3022414631 11TH AVE,SACRAMENTO,95820,CA,2,1,1321,Residential,Tue May 20 00:00:00 EDT 2008,161829,38.541965,-121.4521323228 BAGGAN CT,ANTELOPE,95843,CA,3,2,1392,Residential,Tue May 20 00:00:00 EDT 2008,165000,38.715346,-121.3881638515 DARTFORD DR,SACRAMENTO,95823,CA,3,2,1439,Residential,Tue May 20 00:00:00 EDT 2008,168000,38.448288,-121.4207194500 TIPPWOOD WAY,SACRAMENTO,95842,CA,3,2,1159,Residential,Tue May 20 00:00:00 EDT 2008,169000,38.69951,-121.3599892460 EL ROCCO WAY,RANCHO CORDOVA,95670,CA,3,2,1671,Residential,Tue May 20 00:00:00 EDT 2008,175000,38.591477,-121.315348244 SUNBIRD WAY,SACRAMENTO,95823,CA,3,2,1740,Residential,Tue May 20 00:00:00 EDT 2008,176250,38.457654,-121.4313815841 VALLEY VALE WAY,SACRAMENTO,95823,CA,3,2,1265,Residential,Tue May 20 00:00:00 EDT 2008,179000,38.461283,-121.4343227863 CRESTLEIGH CT,ANTELOPE,95843,CA,2,2,1007,Residential,Tue May 20 00:00:00 EDT 2008,180000,38.710889,-121.3588767129 SPRINGMONT DR,ELK GROVE,95758,CA,3,2,1716,Residential,Tue May 20 00:00:00 EDT 2008,180400,38.417649,-121.4202948284 RED FOX WAY,ELK GROVE,95758,CA,4,2,1685,Residential,Tue May 20 00:00:00 EDT 2008,182000,38.417182,-121.3972312219 EL CANTO CIR,RANCHO CORDOVA,95670,CA,4,2,1829,Residential,Tue May 20 00:00:00 EDT 2008,184500,38.592383,-121.3186698907 GEMWOOD WAY,ELK GROVE,95758,CA,3,2,1555,Residential,Tue May 20 00:00:00 EDT 2008,185000,38.435471,-121.4411735925 MALEVILLE AVE,CARMICHAEL,95608,CA,4,2,1120,Residential,Tue May 20 00:00:00 EDT 2008,189000,38.666564,-121.3257177031 CANEVALLEY CIR,CITRUS HEIGHTS,95621,CA,3,2,1137,Residential,Tue May 20 00:00:00 EDT 2008,194000,38.718693,-121.3036193949 WILDROSE WAY,SACRAMENTO,95826,CA,3,1,1174,Residential,Tue May 20 00:00:00 EDT 2008,195000,38.543697,-121.3666834437 MITCHUM CT,ANTELOPE,95843,CA,3,2,1393,Residential,Tue May 20 00:00:00 EDT 2008,200000,38.704407,-121.361132778 KAWEAH CT,CAMERON PARK,95682,CA,3,1,0,Residential,Tue May 20 00:00:00 EDT 2008,201000,38.694052,-120.9955891636 ALLENWOOD CIR,LINCOLN,95648,CA,4,2,0,Residential,Tue May 20 00:00:00 EDT 2008,202500,38.879192,-121.3094778151 QUAIL RIDGE CT,SACRAMENTO,95828,CA,3,2,1289,Residential,Tue May 20 00:00:00 EDT 2008,205000,38.461296,-121.3908584899 WIND CREEK DR,SACRAMENTO,95838,CA,4,2,1799,Residential,Tue May 20 00:00:00 EDT 2008,205000,38.655887,-121.4461192370 BIG CANYON CREEK RD,PLACERVILLE,95667,CA,3,2,0,Residential,Tue May 20 00:00:00 EDT 2008,205000,38.74458,-120.7942546049 HAMBURG WAY,SACRAMENTO,95823,CA,4,3,1953,Residential,Tue May 20 00:00:00 EDT 2008,205000,38.443253,-121.4319924232 71ST ST,SACRAMENTO,95820,CA,2,1,723,Residential,Tue May 20 00:00:00 EDT 2008,207000,38.536741,-121.421153361 BOW MAR CT,CAMERON PARK,95682,CA,2,2,0,Residential,Tue May 20 00:00:00 EDT 2008,210000,38.69437,-120.9966021889 COLD SPRINGS RD,PLACERVILLE,95667,CA,2,1,948,Residential,Tue May 20 00:00:00 EDT 2008,211500,38.739774,-120.8602435805 HIMALAYA WAY,CITRUS HEIGHTS,95621,CA,4,2,1578,Residential,Tue May 20 00:00:00 EDT 2008,215000,38.696489,-121.3285557944 SYLVAN OAK WAY,CITRUS HEIGHTS,95610,CA,3,2,1317,Residential,Tue May 20 00:00:00 EDT 2008,215000,38.710388,-121.2610963139 SPOONWOOD WAY Unit 1,SACRAMENTO,95833,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,215500,38.626582,-121.521516217 LEOLA WAY,SACRAMENTO,95824,CA,3,1,1360,Residential,Tue May 20 00:00:00 EDT 2008,222381,38.513066,-121.4519092340 HURLEY WAY,SACRAMENTO,95825,CA,0,0,0,Condo,Tue May 20 00:00:00 EDT 2008,225000,38.588816,-121.4085493035 BRUNNET LN,SACRAMENTO,95833,CA,3,2,1522,Residential,Tue May 20 00:00:00 EDT 2008,225000,38.624762,-121.5227753025 EL PRADO WAY,SACRAMENTO,95825,CA,4,2,1751,Residential,Tue May 20 00:00:00 EDT 2008,225000,38.606603,-121.3941479387 GRANITE FALLS CT,ELK GROVE,95624,CA,3,2,1465,Residential,Tue May 20 00:00:00 EDT 2008,225000,38.419214,-121.3485339257 CALDERA WAY,SACRAMENTO,95826,CA,4,2,1605,Residential,Tue May 20 00:00:00 EDT 2008,228000,38.55821,-121.355022441 ARLINGDALE CIR,RIO LINDA,95673,CA,4,2,1475,Residential,Tue May 20 00:00:00 EDT 2008,229665,38.702893,-121.4549492284 LOS ROBLES RD,MEADOW VISTA,95722,CA,3,1,1216,Residential,Tue May 20 00:00:00 EDT 2008,230000,39.008159,-121.036238164 CHENIN BLANC LN,FAIR OAKS,95628,CA,2,2,1315,Residential,Tue May 20 00:00:00 EDT 2008,230000,38.665644,-121.2599694620 CHAMBERLIN CIR,ELK GROVE,95757,CA,3,2,1567,Residential,Tue May 20 00:00:00 EDT 2008,230000,38.390557,-121.4498055340 BIRK WAY,SACRAMENTO,95835,CA,3,2,1776,Residential,Tue May 20 00:00:00 EDT 2008,234000,38.672495,-121.51525151 ANJOU CIR,SACRAMENTO,95835,CA,3,2,2187,Residential,Tue May 20 00:00:00 EDT 2008,235000,38.661658,-121.5406332125 22ND AVE,SACRAMENTO,95822,CA,3,1,1291,Residential,Tue May 20 00:00:00 EDT 2008,236250,38.534596,-121.493121611 BLOSSOM ROCK LN,FOLSOM,95630,CA,0,0,0,Condo,Tue May 20 00:00:00 EDT 2008,240000,38.6457,-121.11978830 ADUR RD,ELK GROVE,95624,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,242000,38.43742,-121.3728767344 BUTTERBALL WAY,SACRAMENTO,95842,CA,3,2,1503,Residential,Tue May 20 00:00:00 EDT 2008,245000,38.699489,-121.3618288219 GWINHURST CIR,SACRAMENTO,95828,CA,4,3,2491,Residential,Tue May 20 00:00:00 EDT 2008,245000,38.459711,-121.3842833240 S ST,SACRAMENTO,95816,CA,2,1,1269,Residential,Tue May 20 00:00:00 EDT 2008,245000,38.562296,-121.467489221 PICASSO CIR,SACRAMENTO,95835,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,250000,38.676658,-121.5281285706 GREENACRES WAY,ORANGEVALE,95662,CA,3,2,1176,Residential,Tue May 20 00:00:00 EDT 2008,250000,38.669882,-121.2135336900 LONICERA DR,ORANGEVALE,95662,CA,4,2,1456,Residential,Tue May 20 00:00:00 EDT 2008,250000,38.692199,-121.250975419 DAWNRIDGE RD,ROSEVILLE,95678,CA,3,2,1498,Residential,Tue May 20 00:00:00 EDT 2008,250000,38.725283,-121.2979535312 MARBURY WAY,ANTELOPE,95843,CA,3,2,1574,Residential,Tue May 20 00:00:00 EDT 2008,255000,38.710221,-121.3416516344 BONHAM CIR,CITRUS HEIGHTS,95610,CA,5,4,2085,Multi-Family,Tue May 20 00:00:00 EDT 2008,256054,38.682358,-121.2728768207 YORKTON WAY,SACRAMENTO,95829,CA,3,2,2170,Residential,Tue May 20 00:00:00 EDT 2008,257729,38.45967,-121.3604617922 MANSELL WAY,ELK GROVE,95758,CA,4,2,1595,Residential,Tue May 20 00:00:00 EDT 2008,260000,38.409634,-121.4107875712 MELBURY CIR,ANTELOPE,95843,CA,3,2,1567,Residential,Tue May 20 00:00:00 EDT 2008,261000,38.705849,-121.334701632 NEWBRIDGE LN,LINCOLN,95648,CA,4,2,0,Residential,Tue May 20 00:00:00 EDT 2008,261800,38.879084,-121.2985861570 GLIDDEN AVE,SACRAMENTO,95822,CA,4,2,1253,Residential,Tue May 20 00:00:00 EDT 2008,264469,38.482704,-121.5004338108 FILIFERA WAY,ANTELOPE,95843,CA,4,3,1768,Residential,Tue May 20 00:00:00 EDT 2008,265000,38.717042,-121.35468230 BANKSIDE WAY,SACRAMENTO,95835,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,270000,38.676937,-121.5292445342 CALABRIA WAY,SACRAMENTO,95835,CA,4,3,2030,Residential,Tue May 20 00:00:00 EDT 2008,270000,38.671807,-121.49827447 NAPONEE CT,SACRAMENTO,95835,CA,3,2,1531,Residential,Tue May 20 00:00:00 EDT 2008,270000,38.665704,-121.5290964236 ADRIATIC SEA WAY,SACRAMENTO,95834,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,270000,38.647961,-121.5431628864 REMBRANT CT,ELK GROVE,95624,CA,4,3,1653,Residential,Tue May 20 00:00:00 EDT 2008,275000,38.435288,-121.3757039455 SEA CLIFF WAY,ELK GROVE,95758,CA,4,2,2056,Residential,Tue May 20 00:00:00 EDT 2008,275000,38.411522,-121.4814069720 LITTLE HARBOR WAY,ELK GROVE,95624,CA,4,3,2494,Residential,Tue May 20 00:00:00 EDT 2008,280000,38.404934,-121.3524058806 PHOENIX AVE,FAIR OAKS,95628,CA,3,2,1450,Residential,Tue May 20 00:00:00 EDT 2008,286013,38.660322,-121.2301013578 LOGGERHEAD WAY,SACRAMENTO,95834,CA,4,2,2169,Residential,Tue May 20 00:00:00 EDT 2008,292000,38.633028,-121.5267551416 LOCKHART WAY,ROSEVILLE,95747,CA,3,2,1440,Residential,Tue May 20 00:00:00 EDT 2008,292000,38.752399,-121.3303285413 BUENA VENTURA WAY,FAIR OAKS,95628,CA,3,2,1527,Residential,Tue May 20 00:00:00 EDT 2008,293993,38.664552,-121.25593737 WHITE BIRCH CT,ROSEVILLE,95678,CA,3,2,1401,Residential,Tue May 20 00:00:00 EDT 2008,294000,38.776327,-121.284514405 MARLIN SPIKE WAY,SACRAMENTO,95838,CA,3,2,1411,Residential,Tue May 20 00:00:00 EDT 2008,296769,38.65783,-121.4568421102 CHESLEY LN,LINCOLN,95648,CA,4,4,0,Residential,Tue May 20 00:00:00 EDT 2008,297500,38.864864,-121.31398811281 STANFORD COURT LN Unit 604,GOLD RIVER,95670,CA,0,0,0,Condo,Tue May 20 00:00:00 EDT 2008,300000,38.625289,-121.2602867320 6TH ST,RIO LINDA,95673,CA,3,1,1284,Residential,Tue May 20 00:00:00 EDT 2008,300000,38.700553,-121.452223993 MANTON CT,GALT,95632,CA,4,3,2307,Residential,Tue May 20 00:00:00 EDT 2008,300000,38.272942,-121.2891484487 PANORAMA DR,PLACERVILLE,95667,CA,3,2,1329,Residential,Tue May 20 00:00:00 EDT 2008,300000,38.694559,-120.8481575651 OVERLEAF WAY,SACRAMENTO,95835,CA,4,2,1910,Residential,Tue May 20 00:00:00 EDT 2008,300500,38.677454,-121.4947912015 PROMONTORY POINT LN,GOLD RIVER,95670,CA,3,2,1981,Residential,Tue May 20 00:00:00 EDT 2008,305000,38.628732,-121.2611493224 PARKHAM DR,ROSEVILLE,95747,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,306500,38.772771,-121.36487715 VANESSA PL,SACRAMENTO,95835,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,312500,38.668692,-121.545491312 RENISON LN,LINCOLN,95648,CA,5,3,0,Residential,Tue May 20 00:00:00 EDT 2008,315000,38.866409,-121.3084858 RIVER RAFT CT,SACRAMENTO,95823,CA,4,2,2205,Residential,Tue May 20 00:00:00 EDT 2008,319789,38.447353,-121.4349692251 LAMPLIGHT LN,LINCOLN,95648,CA,2,2,1449,Residential,Tue May 20 00:00:00 EDT 2008,330000,38.849924,-121.275729106 FARHAM DR,FOLSOM,95630,CA,3,2,1258,Residential,Tue May 20 00:00:00 EDT 2008,330000,38.667834,-121.1685785405 NECTAR CIR,ELK GROVE,95757,CA,3,2,2575,Residential,Tue May 20 00:00:00 EDT 2008,331000,38.387014,-121.4409675411 10TH AVE,SACRAMENTO,95820,CA,2,1,539,Residential,Tue May 20 00:00:00 EDT 2008,334000,38.542727,-121.4424493512 RAINSONG CIR,RANCHO CORDOVA,95670,CA,4,3,2208,Residential,Tue May 20 00:00:00 EDT 2008,336000,38.573488,-121.2828091106 55TH ST,SACRAMENTO,95819,CA,3,1,1108,Residential,Tue May 20 00:00:00 EDT 2008,339000,38.563805,-121.436395411 ILLSLEY WAY,FOLSOM,95630,CA,4,2,1595,Residential,Tue May 20 00:00:00 EDT 2008,339000,38.652002,-121.129504796 BUTTERCUP CIR,GALT,95632,CA,4,2,2159,Residential,Tue May 20 00:00:00 EDT 2008,345000,38.279581,-121.3008281230 SANDRA CIR,PLACERVILLE,95667,CA,4,3,2295,Residential,Tue May 20 00:00:00 EDT 2008,350000,38.738141,-120.784145318 ANACAPA DR,ROSEVILLE,95678,CA,3,2,1838,Residential,Tue May 20 00:00:00 EDT 2008,356000,38.782094,-121.2971333975 SHINING STAR DR,SACRAMENTO,95823,CA,4,2,1900,Residential,Tue May 20 00:00:00 EDT 2008,361745,38.487409,-121.4614131620 BASLER ST,SACRAMENTO,95811,CA,4,2,1718,Residential,Tue May 20 00:00:00 EDT 2008,361948,38.591822,-121.4786449688 NATURE TRAIL WAY,ELK GROVE,95757,CA,5,3,3389,Residential,Tue May 20 00:00:00 EDT 2008,370000,38.405224,-121.4792755924 TANUS CIR,ROCKLIN,95677,CA,4,2,0,Residential,Tue May 20 00:00:00 EDT 2008,380000,38.778691,-121.2042929629 CEDAR OAK WAY,ELK GROVE,95757,CA,5,4,3260,Residential,Tue May 20 00:00:00 EDT 2008,385000,38.405527,-121.4317463429 FERNBROOK CT,CAMERON PARK,95682,CA,3,2,2016,Residential,Tue May 20 00:00:00 EDT 2008,399000,38.664225,-121.0071732121 HANNAH WAY,ROCKLIN,95765,CA,4,2,2607,Residential,Tue May 20 00:00:00 EDT 2008,402000,38.805749,-121.28093110104 ANNIE ST,ELK GROVE,95757,CA,4,3,2724,Residential,Tue May 20 00:00:00 EDT 2008,406026,38.390465,-121.4434791092 MAUGHAM CT,GALT,95632,CA,5,4,3746,Residential,Tue May 20 00:00:00 EDT 2008,420000,38.271646,-121.2868485404 ALMOND FALLS WAY,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,425000,38.527502,-121.2334926306 CONEJO,RANCHO MURIETA,95683,CA,4,2,3192,Residential,Tue May 20 00:00:00 EDT 2008,425000,38.512602,-121.08723314 CASA VATONI PL,SACRAMENTO,95834,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,433500,38.650221,-121.5517041456 EAGLESFIELD LN,LINCOLN,95648,CA,4,3,0,Residential,Tue May 20 00:00:00 EDT 2008,436746,38.857635,-121.3113754100 BOTHWELL CIR,EL DORADO HILLS,95762,CA,5,3,0,Residential,Tue May 20 00:00:00 EDT 2008,438700,38.679136,-121.034329427 21ST ST,SACRAMENTO,95811,CA,2,1,1247,Residential,Tue May 20 00:00:00 EDT 2008,445000,38.582604,-121.475761044 GALSTON DR,FOLSOM,95630,CA,4,2,2581,Residential,Tue May 20 00:00:00 EDT 2008,450000,38.676306,-121.099544440 SYCAMORE AVE,SACRAMENTO,95841,CA,3,1,2068,Residential,Tue May 20 00:00:00 EDT 2008,460000,38.646374,-121.3536581032 SOUZA DR,EL DORADO HILLS,95762,CA,3,2,0,Residential,Tue May 20 00:00:00 EDT 2008,460000,38.668239,-121.0644379760 LAZULITE CT,ELK GROVE,95624,CA,4,3,3992,Residential,Tue May 20 00:00:00 EDT 2008,460000,38.403609,-121.335541241 LANFRANCO CIR,SACRAMENTO,95835,CA,4,4,3397,Residential,Tue May 20 00:00:00 EDT 2008,465000,38.665696,-121.5494375559 NORTHBOROUGH DR,SACRAMENTO,95835,CA,5,3,3881,Residential,Tue May 20 00:00:00 EDT 2008,471750,38.677225,-121.5196872125 BIG SKY DR,ROCKLIN,95765,CA,5,3,0,Residential,Tue May 20 00:00:00 EDT 2008,480000,38.801637,-121.2787982109 HAMLET PL,CARMICHAEL,95608,CA,2,2,1598,Residential,Tue May 20 00:00:00 EDT 2008,484000,38.602754,-121.3293269970 STATE HIGHWAY 193,PLACERVILLE,95667,CA,4,3,1929,Residential,Tue May 20 00:00:00 EDT 2008,485000,38.787877,-120.8166762901 PINTAIL WAY,ELK GROVE,95757,CA,4,3,3070,Residential,Tue May 20 00:00:00 EDT 2008,495000,38.398488,-121.473424201 FIRESTONE DR,ROSEVILLE,95678,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,500500,38.770153,-121.3000391740 HIGH ST,AUBURN,95603,CA,3,3,0,Residential,Tue May 20 00:00:00 EDT 2008,504000,38.891935,-121.084342733 DANA LOOP,EL DORADO HILLS,95762,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,541000,38.628459,-121.0550789741 SADDLEBRED CT,WILTON,95693,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,560000,38.408841,-121.1980397756 TIGERWOODS DR,SACRAMENTO,95829,CA,5,3,3984,Residential,Tue May 20 00:00:00 EDT 2008,572500,38.47643,-121.3092435709 RIVER OAK WAY,CARMICHAEL,95608,CA,4,2,2222,Residential,Tue May 20 00:00:00 EDT 2008,582000,38.602461,-121.3309792981 WRINGER DR,ROSEVILLE,95661,CA,4,3,3838,Residential,Tue May 20 00:00:00 EDT 2008,613401,38.735373,-121.2270728616 ROCKPORTE CT,ROSEVILLE,95747,CA,4,2,0,Residential,Tue May 20 00:00:00 EDT 2008,614000,38.742118,-121.3599094128 HILL ST,FAIR OAKS,95628,CA,5,5,2846,Residential,Tue May 20 00:00:00 EDT 2008,680000,38.64167,-121.2620991409 47TH ST,SACRAMENTO,95819,CA,5,2,2484,Residential,Tue May 20 00:00:00 EDT 2008,699000,38.563244,-121.4468763935 EL MONTE DR,LOOMIS,95650,CA,4,4,1624,Residential,Tue May 20 00:00:00 EDT 2008,839000,38.813337,-121.1333485840 WALERGA RD,SACRAMENTO,95842,CA,2,1,840,Condo,Mon May 19 00:00:00 EDT 2008,40000,38.673678,-121.357471923 FULTON AVE,SACRAMENTO,95825,CA,1,1,484,Condo,Mon May 19 00:00:00 EDT 2008,48000,38.582279,-121.401482261 REDONDO AVE,SACRAMENTO,95815,CA,3,1,970,Residential,Mon May 19 00:00:00 EDT 2008,61500,38.620685,-121.4605394030 BROADWAY,SACRAMENTO,95817,CA,2,1,623,Residential,Mon May 19 00:00:00 EDT 2008,62050,38.546798,-121.4600383660 22ND AVE,SACRAMENTO,95820,CA,2,1,932,Residential,Mon May 19 00:00:00 EDT 2008,65000,38.532718,-121.467473924 HIGH ST,SACRAMENTO,95838,CA,2,1,796,Residential,Mon May 19 00:00:00 EDT 2008,65000,38.638797,-121.4350494734 14TH AVE,SACRAMENTO,95820,CA,2,1,834,Residential,Mon May 19 00:00:00 EDT 2008,68000,38.539447,-121.4508584734 14TH AVE,SACRAMENTO,95820,CA,2,1,834,Residential,Mon May 19 00:00:00 EDT 2008,68000,38.539447,-121.4508585050 RHODE ISLAND DR Unit 4,SACRAMENTO,95841,CA,2,1,924,Condo,Mon May 19 00:00:00 EDT 2008,77000,38.658739,-121.3335614513 GREENHOLME DR,SACRAMENTO,95842,CA,2,1,795,Condo,Mon May 19 00:00:00 EDT 2008,82732,38.669104,-121.3590083845 ELM ST,SACRAMENTO,95838,CA,3,1,1250,Residential,Mon May 19 00:00:00 EDT 2008,84000,38.637337,-121.4328353908 17TH AVE,SACRAMENTO,95820,CA,2,1,984,Residential,Mon May 19 00:00:00 EDT 2008,84675,38.53728,-121.4635317109 CHANDLER DR,SACRAMENTO,95828,CA,3,1,1013,Residential,Mon May 19 00:00:00 EDT 2008,85000,38.497237,-121.4241877541 SKELTON WAY,SACRAMENTO,95822,CA,3,1,1012,Residential,Mon May 19 00:00:00 EDT 2008,90000,38.484274,-121.4888519058 MONTOYA ST,SACRAMENTO,95826,CA,2,1,795,Condo,Mon May 19 00:00:00 EDT 2008,90000,38.559144,-121.3683871016 CONGRESS AVE,SACRAMENTO,95838,CA,2,2,918,Residential,Mon May 19 00:00:00 EDT 2008,91000,38.630151,-121.442789540 MORRISON AVE,SACRAMENTO,95838,CA,3,1,1082,Residential,Mon May 19 00:00:00 EDT 2008,95000,38.637704,-121.4539465303 JERRETT WAY,SACRAMENTO,95842,CA,2,1,964,Residential,Mon May 19 00:00:00 EDT 2008,97500,38.663282,-121.3596312820 DEL PASO BLVD,SACRAMENTO,95815,CA,4,2,1404,Multi-Family,Mon May 19 00:00:00 EDT 2008,100000,38.617718,-121.4400893715 TALLYHO DR Unit 78HIGH,SACRAMENTO,95826,CA,1,1,625,Condo,Mon May 19 00:00:00 EDT 2008,100000,38.544627,-121.357966013 ROWAN WAY,CITRUS HEIGHTS,95621,CA,2,1,888,Residential,Mon May 19 00:00:00 EDT 2008,101000,38.675893,-121.29632987 PONDEROSA LN,SACRAMENTO,95815,CA,4,2,1120,Residential,Mon May 19 00:00:00 EDT 2008,102750,38.622243,-121.4578633732 LANKERSHIM WAY,NORTH HIGHLANDS,95660,CA,3,1,1331,Residential,Mon May 19 00:00:00 EDT 2008,112500,38.68972,-121.3783992216 DUNLAP DR,SACRAMENTO,95821,CA,3,1,1014,Residential,Mon May 19 00:00:00 EDT 2008,113000,38.623738,-121.413053503 21ST AVE,SACRAMENTO,95820,CA,4,2,1448,Residential,Mon May 19 00:00:00 EDT 2008,114000,38.53361,-121.469308523 EXCHANGE ST,SACRAMENTO,95838,CA,3,1,966,Residential,Mon May 19 00:00:00 EDT 2008,114000,38.659414,-121.454088101 PORT ROYALE WAY,SACRAMENTO,95823,CA,2,1,779,Residential,Mon May 19 00:00:00 EDT 2008,114750,38.463929,-121.4386678020 WALERGA RD,ANTELOPE,95843,CA,2,2,836,Condo,Mon May 19 00:00:00 EDT 2008,115000,38.71607,-121.364468167 VALLEY OAK DR,ROSEVILLE,95678,CA,2,2,1100,Condo,Mon May 19 00:00:00 EDT 2008,115000,38.732429,-121.2880697876 BURLINGTON WAY,SACRAMENTO,95832,CA,3,1,1174,Residential,Mon May 19 00:00:00 EDT 2008,116100,38.470093,-121.4683473726 JONKO AVE,NORTH HIGHLANDS,95660,CA,3,2,1207,Residential,Mon May 19 00:00:00 EDT 2008,119250,38.656131,-121.3772657342 GIGI PL,SACRAMENTO,95828,CA,4,4,1995,Multi-Family,Mon May 19 00:00:00 EDT 2008,120000,38.490704,-121.4101762610 PHYLLIS AVE,SACRAMENTO,95820,CA,2,1,804,Residential,Mon May 19 00:00:00 EDT 2008,120000,38.53105,-121.4795744200 COMMERCE WAY Unit 711,SACRAMENTO,95834,CA,2,2,958,Condo,Mon May 19 00:00:00 EDT 2008,120000,38.647523,-121.5232174621 COUNTRY SCENE WAY,SACRAMENTO,95823,CA,3,2,1366,Residential,Mon May 19 00:00:00 EDT 2008,120108,38.470187,-121.4481495380 VILLAGE WOOD DR,SACRAMENTO,95823,CA,2,2,901,Residential,Mon May 19 00:00:00 EDT 2008,121500,38.454949,-121.4405782621 EVERGREEN ST,SACRAMENTO,95815,CA,3,1,696,Residential,Mon May 19 00:00:00 EDT 2008,121725,38.613103,-121.444085201 CARLO CT,GALT,95632,CA,3,2,1080,Residential,Mon May 19 00:00:00 EDT 2008,122000,38.24227,-121.310326743 21ST ST,SACRAMENTO,95822,CA,3,2,1104,Residential,Mon May 19 00:00:00 EDT 2008,123000,38.50372,-121.4906573128 VIA GRANDE,SACRAMENTO,95825,CA,2,1,972,Residential,Mon May 19 00:00:00 EDT 2008,125000,38.598321,-121.391612847 BELGRADE WAY,SACRAMENTO,95833,CA,4,2,1390,Residential,Mon May 19 00:00:00 EDT 2008,125573,38.617173,-121.4825417741 MILLDALE CIR,ELVERTA,95626,CA,4,2,1354,Residential,Mon May 19 00:00:00 EDT 2008,126714,38.705834,-121.439199013 CASALS ST,SACRAMENTO,95826,CA,2,1,795,Condo,Mon May 19 00:00:00 EDT 2008,126960,38.557045,-121.37167227 MAHAN CT Unit 1,ROSEVILLE,95678,CA,2,1,780,Condo,Mon May 19 00:00:00 EDT 2008,127000,38.749723,-121.270087349 FLETCHER FARM DR,SACRAMENTO,95828,CA,4,2,1587,Residential,Mon May 19 00:00:00 EDT 2008,127500,38.49069,-121.3826197226 LARCHMONT DR,NORTH HIGHLANDS,95660,CA,3,2,1209,Residential,Mon May 19 00:00:00 EDT 2008,130000,38.699269,-121.3763344114 35TH AVE,SACRAMENTO,95824,CA,2,1,1139,Residential,Mon May 19 00:00:00 EDT 2008,133105,38.520941,-121.459355617 M ST,RIO LINDA,95673,CA,2,2,1690,Residential,Mon May 19 00:00:00 EDT 2008,136500,38.691104,-121.4518327032 FAIR OAKS BLVD,CARMICHAEL,95608,CA,3,2,1245,Condo,Mon May 19 00:00:00 EDT 2008,139500,38.628563,-121.3282972421 SANTINA WAY,ELVERTA,95626,CA,3,2,1416,Residential,Mon May 19 00:00:00 EDT 2008,140000,38.71865,-121.4077632368 CRAIG AVE,SACRAMENTO,95832,CA,3,2,1300,Residential,Mon May 19 00:00:00 EDT 2008,140800,38.47807,-121.481142123 AMANDA WAY,SACRAMENTO,95822,CA,3,2,1120,Residential,Mon May 19 00:00:00 EDT 2008,145000,38.484896,-121.4869487620 DARLA WAY,SACRAMENTO,95828,CA,4,2,1590,Residential,Mon May 19 00:00:00 EDT 2008,147000,38.478502,-121.4035178344 FIELDPOPPY CIR,SACRAMENTO,95828,CA,3,2,1407,Residential,Mon May 19 00:00:00 EDT 2008,149600,38.479083,-121.4007023624 20TH AVE,SACRAMENTO,95820,CA,5,2,1516,Residential,Mon May 19 00:00:00 EDT 2008,150000,38.534508,-121.46790710001 WOODCREEK OAKS BLVD Unit 1415,ROSEVILLE,95747,CA,2,2,0,Condo,Mon May 19 00:00:00 EDT 2008,150000,38.795529,-121.3288192848 PROVO WAY,SACRAMENTO,95822,CA,3,2,1646,Residential,Mon May 19 00:00:00 EDT 2008,150000,38.489759,-121.4747546045 EHRHARDT AVE,SACRAMENTO,95823,CA,3,2,1676,Residential,Mon May 19 00:00:00 EDT 2008,155000,38.457157,-121.4330651223 LAMBERTON CIR,SACRAMENTO,95838,CA,3,2,1370,Residential,Mon May 19 00:00:00 EDT 2008,155435,38.646677,-121.4375731223 LAMBERTON CIR,SACRAMENTO,95838,CA,3,2,1370,Residential,Mon May 19 00:00:00 EDT 2008,155500,38.646677,-121.4375736000 BIRCHGLADE WAY,CITRUS HEIGHTS,95621,CA,4,2,1351,Residential,Mon May 19 00:00:00 EDT 2008,158000,38.70166,-121.3232497204 THOMAS DR,NORTH HIGHLANDS,95660,CA,3,2,1152,Residential,Mon May 19 00:00:00 EDT 2008,158000,38.697898,-121.3776878363 LANGTREE WAY,SACRAMENTO,95823,CA,3,2,1452,Residential,Mon May 19 00:00:00 EDT 2008,160000,38.45356,-121.4359591675 VERNON ST Unit 8,ROSEVILLE,95678,CA,2,1,990,Residential,Mon May 19 00:00:00 EDT 2008,160000,38.734136,-121.2996396632 IBEX WOODS CT,CITRUS HEIGHTS,95621,CA,2,2,1162,Residential,Mon May 19 00:00:00 EDT 2008,164000,38.720868,-121.309855117 EVCAR WAY,RIO LINDA,95673,CA,3,2,1182,Residential,Mon May 19 00:00:00 EDT 2008,164000,38.687659,-121.46336485 LAGUNA MIRAGE LN,ELK GROVE,95758,CA,2,2,1112,Residential,Mon May 19 00:00:00 EDT 2008,165000,38.42465,-121.430137746 MOOSE CREEK WAY,GALT,95632,CA,3,2,1100,Residential,Mon May 19 00:00:00 EDT 2008,167000,38.283085,-121.3020718306 CURLEW CT,CITRUS HEIGHTS,95621,CA,4,2,1280,Residential,Mon May 19 00:00:00 EDT 2008,167293,38.715781,-121.2985198306 CURLEW CT,CITRUS HEIGHTS,95621,CA,4,2,1280,Residential,Mon May 19 00:00:00 EDT 2008,167293,38.715781,-121.2985195217 ARGO WAY,SACRAMENTO,95820,CA,3,1,1039,Residential,Mon May 19 00:00:00 EDT 2008,168000,38.52774,-121.4336697108 HEATHER TREE DR,SACRAMENTO,95842,CA,3,2,1159,Residential,Mon May 19 00:00:00 EDT 2008,170000,38.695677,-121.360222956 DAVENPORT WAY,SACRAMENTO,95833,CA,4,2,1917,Residential,Mon May 19 00:00:00 EDT 2008,170000,38.620687,-121.48261910062 LINCOLN VILLAGE DR,SACRAMENTO,95827,CA,3,2,1520,Residential,Mon May 19 00:00:00 EDT 2008,170000,38.564,-121.320023332 PALIN AVE,GALT,95632,CA,3,2,1204,Residential,Mon May 19 00:00:00 EDT 2008,174000,38.260467,-121.3026364649 FREEWAY CIR,SACRAMENTO,95841,CA,3,2,1120,Residential,Mon May 19 00:00:00 EDT 2008,178000,38.658734,-121.3571968593 DERLIN WAY,SACRAMENTO,95823,CA,3,2,1436,Residential,Mon May 19 00:00:00 EDT 2008,180000,38.447585,-121.4266279273 PREMIER WAY,SACRAMENTO,95826,CA,3,2,1451,Residential,Mon May 19 00:00:00 EDT 2008,180000,38.55992,-121.3525398032 DUSENBERG CT,SACRAMENTO,95828,CA,4,2,1638,Residential,Mon May 19 00:00:00 EDT 2008,180000,38.466499,-121.3811197110 STELLA LN Unit 15,CARMICHAEL,95608,CA,2,2,1000,Condo,Mon May 19 00:00:00 EDT 2008,182000,38.637396,-121.3000551786 PIEDMONT WAY,ROSEVILLE,95661,CA,3,1,1152,Residential,Mon May 19 00:00:00 EDT 2008,188325,38.72748,-121.2565371347 HIDALGO CIR,ROSEVILLE,95747,CA,3,2,1154,Residential,Mon May 19 00:00:00 EDT 2008,191500,38.747878,-121.311279212 CAPPUCINO WAY,SACRAMENTO,95838,CA,3,2,1353,Residential,Mon May 19 00:00:00 EDT 2008,192000,38.657811,-121.4653275938 WOODBRIAR WAY,CITRUS HEIGHTS,95621,CA,3,2,1329,Residential,Mon May 19 00:00:00 EDT 2008,192700,38.706152,-121.3253993801 WILDROSE WAY,SACRAMENTO,95826,CA,3,1,1356,Residential,Mon May 19 00:00:00 EDT 2008,195000,38.544368,-121.369979508 SAMUEL WAY,SACRAMENTO,95838,CA,3,2,1505,Residential,Mon May 19 00:00:00 EDT 2008,197654,38.645689,-121.4527666128 CARL SANDBURG CIR,SACRAMENTO,95842,CA,3,1,1009,Residential,Mon May 19 00:00:00 EDT 2008,198000,38.681541,-121.3556161 KENNELFORD CIR,SACRAMENTO,95823,CA,3,2,1144,Residential,Mon May 19 00:00:00 EDT 2008,200345,38.46452,-121.427606909 SINGINGWOOD RD,SACRAMENTO,95864,CA,2,1,930,Residential,Mon May 19 00:00:00 EDT 2008,203000,38.581471,-121.388396671 FOXWOOD CT,SACRAMENTO,95841,CA,4,2,1766,Residential,Mon May 19 00:00:00 EDT 2008,207000,38.687943,-121.3288838165 AYN RAND CT,SACRAMENTO,95828,CA,4,3,1940,Residential,Mon May 19 00:00:00 EDT 2008,208000,38.468639,-121.4032659474 VILLAGE TREE DR,ELK GROVE,95758,CA,4,2,1776,Residential,Mon May 19 00:00:00 EDT 2008,210000,38.413947,-121.4082767213 CALVIN DR,CITRUS HEIGHTS,95621,CA,3,1,1258,Residential,Mon May 19 00:00:00 EDT 2008,212000,38.698154,-121.2983758167 DERBY PARK CT,SACRAMENTO,95828,CA,4,2,1872,Residential,Mon May 19 00:00:00 EDT 2008,213675,38.460492,-121.3733796344 LAGUNA MIRAGE LN,ELK GROVE,95758,CA,2,2,1112,Residential,Mon May 19 00:00:00 EDT 2008,213697,38.423963,-121.4288752945 RED HAWK WAY,SACRAMENTO,95833,CA,4,2,1856,Residential,Mon May 19 00:00:00 EDT 2008,215000,38.619675,-121.4969033228 I ST,SACRAMENTO,95816,CA,4,3,1939,Residential,Mon May 19 00:00:00 EDT 2008,215000,38.573844,-121.462839308 ATKINSON ST,ROSEVILLE,95678,CA,3,1,998,Residential,Mon May 19 00:00:00 EDT 2008,215100,38.746794,-121.29971624 HOVEY WAY,ROSEVILLE,95678,CA,3,2,1758,Residential,Mon May 19 00:00:00 EDT 2008,217500,38.756149,-121.306479110 COPPER LEAF WAY,SACRAMENTO,95838,CA,3,2,2142,Residential,Mon May 19 00:00:00 EDT 2008,218000,38.658466,-121.4606617535 ALMA VISTA WAY,SACRAMENTO,95831,CA,2,1,950,Residential,Mon May 19 00:00:00 EDT 2008,220000,38.48403,-121.5076417423 WILSALL CT,ELK GROVE,95758,CA,4,3,1739,Residential,Mon May 19 00:00:00 EDT 2008,221000,38.417026,-121.4168218629 VIA ALTA WAY,ELK GROVE,95624,CA,3,2,1516,Residential,Mon May 19 00:00:00 EDT 2008,222900,38.398245,-121.3806153318 DAVIDSON DR,ANTELOPE,95843,CA,3,1,988,Residential,Mon May 19 00:00:00 EDT 2008,223139,38.705753,-121.388917913 COBDEN CT,GALT,95632,CA,4,2,1555,Residential,Mon May 19 00:00:00 EDT 2008,225500,38.282001,-121.2959024419 79TH ST,SACRAMENTO,95820,CA,3,2,1212,Residential,Mon May 19 00:00:00 EDT 2008,228327,38.534827,-121.4125453012 SPOONWOOD WAY,SACRAMENTO,95833,CA,4,2,1871,Residential,Mon May 19 00:00:00 EDT 2008,230000,38.62478,-121.5234748728 CRYSTAL RIVER WAY,SACRAMENTO,95828,CA,3,2,1302,Residential,Mon May 19 00:00:00 EDT 2008,230000,38.47547,-121.3800554709 AMBER LN Unit 1,SACRAMENTO,95841,CA,2,1,756,Condo,Mon May 19 00:00:00 EDT 2008,230522,38.657789,-121.3549944508 OLD DAIRY DR,ANTELOPE,95843,CA,4,3,2026,Residential,Mon May 19 00:00:00 EDT 2008,231200,38.72286,-121.358939312 RIVER ISLE WAY,SACRAMENTO,95831,CA,3,2,1375,Residential,Mon May 19 00:00:00 EDT 2008,232000,38.49026,-121.550527301 OLIVADI WAY,SACRAMENTO,95834,CA,2,2,1250,Condo,Mon May 19 00:00:00 EDT 2008,232500,38.644406,-121.5490495636 25TH ST,SACRAMENTO,95822,CA,3,1,1058,Residential,Mon May 19 00:00:00 EDT 2008,233641,38.523828,-121.4811398721 SPRUCE RIDGE WAY,ANTELOPE,95843,CA,3,2,1187,Residential,Mon May 19 00:00:00 EDT 2008,234000,38.727657,-121.3910287461 WINDBRIDGE DR,SACRAMENTO,95831,CA,2,2,1324,Residential,Mon May 19 00:00:00 EDT 2008,234500,38.48797,-121.5302298101 LEMON COVE CT,SACRAMENTO,95828,CA,4,3,1936,Residential,Mon May 19 00:00:00 EDT 2008,235000,38.462981,-121.40828810949 SCOTSMAN WAY,RANCHO CORDOVA,95670,CA,5,4,2382,Multi-Family,Mon May 19 00:00:00 EDT 2008,236000,38.603686,-121.277844617 WILLOW CREEK DR,FOLSOM,95630,CA,3,2,1427,Residential,Mon May 19 00:00:00 EDT 2008,236073,38.679626,-121.1426093301 PARK DR Unit 1914,SACRAMENTO,95835,CA,3,2,1678,Condo,Mon May 19 00:00:00 EDT 2008,238000,38.665296,-121.531993709 CIMMARON CT,GALT,95632,CA,4,2,1798,Residential,Mon May 19 00:00:00 EDT 2008,238861,38.277177,-121.3037473305 RIO ROCA CT,ANTELOPE,95843,CA,4,3,2652,Residential,Mon May 19 00:00:00 EDT 2008,239700,38.725079,-121.3876989080 BEDROCK CT,SACRAMENTO,95829,CA,4,2,1816,Residential,Mon May 19 00:00:00 EDT 2008,240000,38.456939,-121.362965100 TOURMALINE CIR,SACRAMENTO,95834,CA,5,3,3076,Residential,Mon May 19 00:00:00 EDT 2008,240000,38.63437,-121.5107796411 RED BIRCH WAY,ELK GROVE,95758,CA,4,2,1844,Residential,Mon May 19 00:00:00 EDT 2008,241000,38.43461,-121.4293164867 LAGUNA DR,SACRAMENTO,95823,CA,3,2,1306,Residential,Mon May 19 00:00:00 EDT 2008,245000,38.46179,-121.4453713662 RIVER DR,SACRAMENTO,95833,CA,4,3,2447,Residential,Mon May 19 00:00:00 EDT 2008,246000,38.604969,-121.542556943 WOLFGRAM WAY,SACRAMENTO,95828,CA,4,2,1176,Residential,Mon May 19 00:00:00 EDT 2008,247234,38.489215,-121.41954677 RINETTI WAY,RIO LINDA,95673,CA,4,2,1182,Residential,Mon May 19 00:00:00 EDT 2008,247480,38.687021,-121.4631511316 I ST,RIO LINDA,95673,CA,3,1,1160,Residential,Mon May 19 00:00:00 EDT 2008,249862,38.683674,-121.4352042130 CATHERWOOD WAY,SACRAMENTO,95835,CA,3,2,1424,Residential,Mon May 19 00:00:00 EDT 2008,251000,38.675506,-121.5109878304 JUGLANS DR,ORANGEVALE,95662,CA,4,2,1574,Residential,Mon May 19 00:00:00 EDT 2008,252155,38.691829,-121.2490335308 MARBURY WAY,ANTELOPE,95843,CA,3,2,1830,Residential,Mon May 19 00:00:00 EDT 2008,254172,38.710221,-121.3417079182 LAKEMONT DR,ELK GROVE,95624,CA,4,2,1724,Residential,Mon May 19 00:00:00 EDT 2008,258000,38.451353,-121.3587762231 COUNTRY VILLA CT,AUBURN,95603,CA,2,2,1255,Condo,Mon May 19 00:00:00 EDT 2008,260000,38.931671,-121.0978628491 CRYSTAL WALK CIR,ELK GROVE,95758,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,261000,38.416916,-121.407554361 MAHONIA CIR,SACRAMENTO,95835,CA,4,3,2175,Residential,Mon May 19 00:00:00 EDT 2008,261000,38.676172,-121.5097613427 LA CADENA WAY,SACRAMENTO,95835,CA,4,2,1904,Residential,Mon May 19 00:00:00 EDT 2008,261000,38.681194,-121.537351955 BIG SUR CT,EL DORADO HILLS,95762,CA,4,2,1808,Residential,Mon May 19 00:00:00 EDT 2008,262500,38.664347,-121.07652911826 DIONYSUS WAY,RANCHO CORDOVA,95742,CA,4,2,2711,Residential,Mon May 19 00:00:00 EDT 2008,266000,38.551046,-121.2394115847 DEL CAMPO LN,CARMICHAEL,95608,CA,3,1,1713,Residential,Mon May 19 00:00:00 EDT 2008,266000,38.671995,-121.3243395635 FOXVIEW WAY,ELK GROVE,95757,CA,3,2,1457,Residential,Mon May 19 00:00:00 EDT 2008,270000,38.395256,-121.43824910372 VIA CINTA CT,ELK GROVE,95757,CA,4,3,2724,Residential,Mon May 19 00:00:00 EDT 2008,274425,38.380089,-121.4281866286 LONETREE BLVD,ROCKLIN,95765,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,274500,38.805036,-121.2936087744 SOUTHBREEZE DR,SACRAMENTO,95828,CA,3,2,1468,Residential,Mon May 19 00:00:00 EDT 2008,275336,38.476932,-121.3783492242 ABLE WAY,SACRAMENTO,95835,CA,4,3,2550,Residential,Mon May 19 00:00:00 EDT 2008,277980,38.666074,-121.5097431042 STARBROOK DR,GALT,95632,CA,4,2,1928,Residential,Mon May 19 00:00:00 EDT 2008,280000,38.285611,-121.2930631219 G ST,SACRAMENTO,95814,CA,3,3,1922,Residential,Mon May 19 00:00:00 EDT 2008,284686,38.582818,-121.4890966220 OPUS CT,CITRUS HEIGHTS,95621,CA,3,2,1343,Residential,Mon May 19 00:00:00 EDT 2008,284893,38.715853,-121.3170955419 HAVENHURST CIR,ROCKLIN,95677,CA,3,2,1510,Residential,Mon May 19 00:00:00 EDT 2008,285000,38.786746,-121.209957220 OLD AIRPORT RD,AUBURN,95603,CA,2,2,960,Multi-Family,Mon May 19 00:00:00 EDT 2008,285000,38.939802,-121.0545754622 MEYER WAY,CARMICHAEL,95608,CA,4,2,1559,Residential,Mon May 19 00:00:00 EDT 2008,285000,38.64913,-121.3106674885 SUMMIT VIEW DR,EL DORADO,95623,CA,3,2,1624,Residential,Mon May 19 00:00:00 EDT 2008,289000,38.673285,-120.87917626 JEANROSS CT,SACRAMENTO,95832,CA,5,3,2992,Residential,Mon May 19 00:00:00 EDT 2008,295000,38.473162,-121.4910854800 MAPLEPLAIN AVE,ELK GROVE,95758,CA,4,2,2109,Residential,Mon May 19 00:00:00 EDT 2008,296000,38.432848,-121.44923710629 BASIE WAY,RANCHO CORDOVA,95670,CA,4,2,1524,Residential,Mon May 19 00:00:00 EDT 2008,296056,38.579,-121.2926278612 WILLOW GROVE WAY,SACRAMENTO,95828,CA,3,2,1248,Residential,Mon May 19 00:00:00 EDT 2008,297359,38.464994,-121.38696262 DE FER CIR,SACRAMENTO,95823,CA,4,2,1876,Residential,Mon May 19 00:00:00 EDT 2008,299940,38.49254,-121.4633162513 OLD KENMARE RD,LINCOLN,95648,CA,5,3,0,Residential,Mon May 19 00:00:00 EDT 2008,304000,38.847396,-121.2595863253 ABOTO WAY,RANCHO CORDOVA,95670,CA,4,3,1851,Residential,Mon May 19 00:00:00 EDT 2008,305000,38.57727,-121.2855913072 VILLAGE PLAZA DR,ROSEVILLE,95747,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,307000,38.773094,-121.365905251 CHANGO CIR,SACRAMENTO,95835,CA,4,2,2218,Residential,Mon May 19 00:00:00 EDT 2008,311328,38.68237,-121.5391478205 WEYBURN CT,SACRAMENTO,95828,CA,3,2,1394,Residential,Mon May 19 00:00:00 EDT 2008,313138,38.47316,-121.4038938788 LA MARGARITA WAY,SACRAMENTO,95828,CA,3,2,1410,Residential,Mon May 19 00:00:00 EDT 2008,316630,38.468185,-121.3756945912 DEEPDALE WAY,ELK GROVE,95758,CA,5,3,3468,Residential,Mon May 19 00:00:00 EDT 2008,320000,38.439565,-121.4366064712 PISMO BEACH DR,ANTELOPE,95843,CA,5,3,2346,Residential,Mon May 19 00:00:00 EDT 2008,320000,38.707705,-121.3541534741 PACIFIC PARK DR,ANTELOPE,95843,CA,5,3,2347,Residential,Mon May 19 00:00:00 EDT 2008,325000,38.709299,-121.353056310 GROTH CIR,SACRAMENTO,95834,CA,4,2,1659,Residential,Mon May 19 00:00:00 EDT 2008,328578,38.638764,-121.5318276121 WILD FOX CT,ELK GROVE,95757,CA,3,3,2442,Residential,Mon May 19 00:00:00 EDT 2008,331000,38.406758,-121.43166912241 CANYONLANDS DR,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,331500,38.557293,-121.21761129 COOL FOUNTAIN CT,SACRAMENTO,95833,CA,4,2,2155,Residential,Mon May 19 00:00:00 EDT 2008,340000,38.606906,-121.54132907 RIO ROBLES AVE,SACRAMENTO,95838,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,344755,38.664765,-121.4450068909 BILLFISH WAY,SACRAMENTO,95828,CA,3,2,1810,Residential,Mon May 19 00:00:00 EDT 2008,345746,38.475433,-121.3725846232 GUS WAY,ELK GROVE,95757,CA,4,2,2789,Residential,Mon May 19 00:00:00 EDT 2008,351000,38.388129,-121.43117200 OAKWILDE ST,GALT,95632,CA,4,2,1606,Residential,Mon May 19 00:00:00 EDT 2008,353767,38.2535,-121.318121033 PARK STREAM DR,GALT,95632,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,355000,38.287785,-121.289903200 ALLAIRE CIR,SACRAMENTO,95835,CA,4,2,2166,Residential,Mon May 19 00:00:00 EDT 2008,356035,38.68318,-121.534841322 SUTTER WALK,SACRAMENTO,95816,CA,0,0,0,Condo,Mon May 19 00:00:00 EDT 2008,360000,38.53805,-121.50475479 NICKMAN WAY,SACRAMENTO,95835,CA,4,2,1871,Residential,Mon May 19 00:00:00 EDT 2008,360552,38.672966,-121.5027482103 BURBERRY WAY,SACRAMENTO,95835,CA,3,2,1800,Residential,Mon May 19 00:00:00 EDT 2008,362305,38.67342,-121.5085422450 SAN JOSE WAY,SACRAMENTO,95817,CA,3,1,1683,Residential,Mon May 19 00:00:00 EDT 2008,365000,38.553596,-121.4594837641 ROSEHALL DR,ROSEVILLE,95678,CA,3,2,0,Residential,Mon May 19 00:00:00 EDT 2008,367554,38.791617,-121.2861471336 LAYSAN TEAL DR,ROSEVILLE,95747,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,368500,38.796121,-121.3199632802 BLACK OAK DR,ROCKLIN,95765,CA,2,2,1596,Residential,Mon May 19 00:00:00 EDT 2008,370000,38.837006,-121.2320242113 FALL TRAIL CT,PLACERVILLE,95667,CA,4,2,0,Residential,Mon May 19 00:00:00 EDT 2008,371086,38.733155,-120.74803910112 LAMBEAU CT,ELK GROVE,95757,CA,3,2,1179,Residential,Mon May 19 00:00:00 EDT 2008,378000,38.390328,-121.4480226313 CASTRO VERDE WAY,ELK GROVE,95757,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,383000,38.381102,-121.429013622 CURTIS DR,SACRAMENTO,95818,CA,3,1,1639,Residential,Mon May 19 00:00:00 EDT 2008,388000,38.541735,-121.48009811817 OPAL RIDGE WAY,RANCHO CORDOVA,95742,CA,5,3,3281,Residential,Mon May 19 00:00:00 EDT 2008,395100,38.551083,-121.237476170 LAGOMARSINO WAY,SACRAMENTO,95819,CA,3,2,1697,Residential,Mon May 19 00:00:00 EDT 2008,400000,38.574894,-121.4358062743 DEAKIN PL,EL DORADO HILLS,95762,CA,3,2,0,Residential,Mon May 19 00:00:00 EDT 2008,400000,38.69288,-121.0735513361 ALDER CANYON WAY,ANTELOPE,95843,CA,4,3,2085,Residential,Mon May 19 00:00:00 EDT 2008,408431,38.727649,-121.3856562148 RANCH VIEW DR,ROCKLIN,95765,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,413000,38.837455,-121.289337398 LINDLEY DR,SACRAMENTO,95815,CA,4,2,1744,Multi-Family,Mon May 19 00:00:00 EDT 2008,416767,38.622359,-121.4575823013 BRIDLEWOOD DR,EL DORADO HILLS,95762,CA,4,3,0,Residential,Mon May 19 00:00:00 EDT 2008,420000,38.675519,-121.015862169 BAURER CIR,FOLSOM,95630,CA,4,3,1939,Residential,Mon May 19 00:00:00 EDT 2008,423000,38.66695,-121.1207292809 LOON CT,CAMERON PARK,95682,CA,4,2,0,Residential,Mon May 19 00:00:00 EDT 2008,423000,38.687072,-121.0047291315 KONDOS AVE,SACRAMENTO,95814,CA,2,3,1788,Residential,Mon May 19 00:00:00 EDT 2008,427500,38.571943,-121.4921064966 CHARTER RD,ROCKLIN,95765,CA,3,2,1691,Residential,Mon May 19 00:00:00 EDT 2008,430922,38.82553,-121.2546989516 LAGUNA LAKE WAY,ELK GROVE,95758,CA,4,2,2002,Residential,Mon May 19 00:00:00 EDT 2008,445000,38.411258,-121.4313485201 BLOSSOM RANCH DR,ELK GROVE,95757,CA,4,4,4303,Residential,Mon May 19 00:00:00 EDT 2008,450000,38.399436,-121.4440413027 PALMATE WAY,SACRAMENTO,95834,CA,5,3,4246,Residential,Mon May 19 00:00:00 EDT 2008,452000,38.628955,-121.529269500 WINCHESTER CT,ROSEVILLE,95661,CA,3,2,2274,Residential,Mon May 19 00:00:00 EDT 2008,470000,38.73988,-121.2489295746 GELSTON WAY,EL DORADO HILLS,95762,CA,4,3,0,Residential,Mon May 19 00:00:00 EDT 2008,471000,38.677015,-121.0340836935 ELM TREE LN,ORANGEVALE,95662,CA,4,4,3056,Residential,Mon May 19 00:00:00 EDT 2008,475000,38.693041,-121.232949605 GOLF COURSE LN,ELK GROVE,95758,CA,3,3,2503,Residential,Mon May 19 00:00:00 EDT 2008,484500,38.409689,-121.446059719 BAYWOOD CT,EL DORADO HILLS,95762,CA,5,3,0,Residential,Mon May 19 00:00:00 EDT 2008,487500,38.647598,-121.0778015954 TANUS CIR,ROCKLIN,95677,CA,3,3,0,Residential,Mon May 19 00:00:00 EDT 2008,488750,38.777585,-121.2036100 CHELSEA CT,FOLSOM,95630,CA,3,2,1905,Residential,Mon May 19 00:00:00 EDT 2008,500000,38.69435,-121.1772591500 ORANGE HILL LN,PENRYN,95663,CA,3,2,1320,Residential,Mon May 19 00:00:00 EDT 2008,506688,38.862708,-121.162092408 KIRKWOOD CT,LINCOLN,95648,CA,2,2,0,Residential,Mon May 19 00:00:00 EDT 2008,512000,38.861615,-121.268691732 TUSCAN GROVE CIR,ROSEVILLE,95747,CA,5,3,0,Residential,Mon May 19 00:00:00 EDT 2008,520000,38.796683,-121.3425552049 EMPIRE MINE CIR,GOLD RIVER,95670,CA,4,2,3037,Residential,Mon May 19 00:00:00 EDT 2008,528000,38.629299,-121.2490219360 MAGOS RD,WILTON,95693,CA,5,2,3741,Residential,Mon May 19 00:00:00 EDT 2008,579093,38.416809,-121.240628104 CATLIN CT,FOLSOM,95630,CA,4,3,2660,Residential,Mon May 19 00:00:00 EDT 2008,636000,38.684459,-121.1459354734 GIBBONS DR,CARMICHAEL,95608,CA,4,3,3357,Residential,Mon May 19 00:00:00 EDT 2008,668365,38.63558,-121.3536394629 DORCHESTER LN,GRANITE BAY,95746,CA,5,3,2896,Residential,Mon May 19 00:00:00 EDT 2008,676200,38.723545,-121.2160252400 COUNTRYSIDE DR,PLACERVILLE,95667,CA,3,2,2025,Residential,Mon May 19 00:00:00 EDT 2008,677048,38.737452,-120.91096312901 FURLONG DR,WILTON,95693,CA,5,3,3788,Residential,Mon May 19 00:00:00 EDT 2008,691659,38.413535,-121.1882116222 CALLE MONTALVO CIR,GRANITE BAY,95746,CA,5,3,3670,Residential,Mon May 19 00:00:00 EDT 2008,760000,38.779435,-121.14667620 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885327,-121.28941224 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885132,-121.28940528 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884936,-121.28939732 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884741,-121.2893936 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884599,-121.28940640 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884535,-121.28961944 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88459,-121.28983548 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884667,-121.28989652 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88478,-121.28991168 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885236,-121.28992872 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88535,-121.28992676 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885464,-121.28992280 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885578,-121.28991984 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885692,-121.28991588 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885806,-121.28991192 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88592,-121.28990896 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886024,-121.289859100 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886091,-121.289744434 1ST ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88653,-121.2894063 E ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884692,-121.29028811 E ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884879,-121.29025719 E ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885017,-121.29026227 E ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885173,-121.2902735 E ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885328,-121.29027543 E ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885483,-121.29027751 E ST,LINCOLN,95648,CA,4,2,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885638,-121.29027959 E ST,LINCOLN,95648,CA,3,2,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885794,-121.29028175 E ST,LINCOLN,95648,CA,3,2,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886104,-121.29028563 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885093,-121.289932398 1ST ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88653,-121.288952386 1ST ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886528,-121.288869374 1ST ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886525,-121.288787116 CRYSTALWOOD WAY,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886282,-121.289586108 CRYSTALWOOD WAY,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886282,-121.289646100 CRYSTALWOOD WAY,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886282,-121.28970655 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884865,-121.28992251 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884752,-121.28990747 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884638,-121.28989343 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884568,-121.28978439 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884546,-121.28956235 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884645,-121.28939731 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88479,-121.28939227 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884985,-121.28939923 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885181,-121.28940619 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885376,-121.28941415 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885571,-121.2894217 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885962,-121.2894367 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885962,-121.2894363 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886093,-121.2895848208 WOODYARD WAY,CITRUS HEIGHTS,95621,CA,3,2,1166,Residential,Fri May 16 00:00:00 EDT 2008,30000,38.715322,-121.314787113 RINETTI WAY,RIO LINDA,95673,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,30000,38.687172,-121.46393315 LOORZ CT,SACRAMENTO,95823,CA,2,1,838,Residential,Fri May 16 00:00:00 EDT 2008,55422,38.471646,-121.4351585805 DOTMAR WAY,NORTH HIGHLANDS,95660,CA,2,1,904,Residential,Fri May 16 00:00:00 EDT 2008,63000,38.672642,-121.3803432332 CAMBRIDGE ST,SACRAMENTO,95815,CA,2,1,1032,Residential,Fri May 16 00:00:00 EDT 2008,65000,38.608085,-121.4496513812 BELDEN ST,SACRAMENTO,95838,CA,2,1,904,Residential,Fri May 16 00:00:00 EDT 2008,65000,38.636833,-121.441643348 40TH ST,SACRAMENTO,95817,CA,2,1,1080,Residential,Fri May 16 00:00:00 EDT 2008,65000,38.544162,-121.460652127 QUASAR CIR,SACRAMENTO,95822,CA,2,2,990,Residential,Fri May 16 00:00:00 EDT 2008,66500,38.493504,-121.4753043812 CYPRESS ST,SACRAMENTO,95838,CA,2,1,900,Residential,Fri May 16 00:00:00 EDT 2008,71000,38.636877,-121.4449485821 64TH ST,SACRAMENTO,95824,CA,2,1,861,Residential,Fri May 16 00:00:00 EDT 2008,75000,38.521202,-121.4281468248 CENTER PKWY,SACRAMENTO,95823,CA,2,1,906,Condo,Fri May 16 00:00:00 EDT 2008,77000,38.459002,-121.4287941171 SONOMA AVE,SACRAMENTO,95815,CA,2,1,1011,Residential,Fri May 16 00:00:00 EDT 2008,85000,38.6238,-121.4398724250 ARDWELL WAY,SACRAMENTO,95823,CA,3,2,1089,Residential,Fri May 16 00:00:00 EDT 2008,95625,38.466938,-121.4556313104 CLAY ST,SACRAMENTO,95815,CA,2,1,832,Residential,Fri May 16 00:00:00 EDT 2008,96140,38.62391,-121.4392086063 LAND PARK DR,SACRAMENTO,95822,CA,2,1,800,Condo,Fri May 16 00:00:00 EDT 2008,104250,38.517029,-121.5138094738 OAKHOLLOW DR,SACRAMENTO,95842,CA,4,2,1292,Residential,Fri May 16 00:00:00 EDT 2008,105000,38.679598,-121.3560351401 STERLING ST,SACRAMENTO,95822,CA,2,1,810,Residential,Fri May 16 00:00:00 EDT 2008,108000,38.520319,-121.5047273715 DIDCOT CIR,SACRAMENTO,95838,CA,4,2,1064,Residential,Fri May 16 00:00:00 EDT 2008,109000,38.635232,-121.4600982426 RASHAWN DR,RANCHO CORDOVA,95670,CA,2,1,911,Residential,Fri May 16 00:00:00 EDT 2008,115000,38.610852,-121.2732784800 WESTLAKE PKWY Unit 410,SACRAMENTO,95835,CA,1,1,846,Condo,Fri May 16 00:00:00 EDT 2008,115000,38.658812,-121.5423453409 VIRGO ST,SACRAMENTO,95827,CA,3,2,1320,Residential,Fri May 16 00:00:00 EDT 2008,115500,38.563402,-121.3277471110 PINEDALE AVE,SACRAMENTO,95838,CA,3,2,1410,Residential,Fri May 16 00:00:00 EDT 2008,115620,38.660173,-121.4402162361 LA LOMA DR,RANCHO CORDOVA,95670,CA,3,2,1115,Residential,Fri May 16 00:00:00 EDT 2008,116000,38.59368,-121.3160541455 64TH AVE,SACRAMENTO,95822,CA,3,2,1169,Residential,Fri May 16 00:00:00 EDT 2008,122000,38.492177,-121.5033927328 SPRINGMAN ST,SACRAMENTO,95822,CA,3,2,1164,Residential,Fri May 16 00:00:00 EDT 2008,122500,38.491991,-121.477636119 SAINT MARIE CIR,SACRAMENTO,95823,CA,4,2,1341,Residential,Fri May 16 00:00:00 EDT 2008,123000,38.481454,-121.44664412 COSTA BRASE CT,SACRAMENTO,95838,CA,3,2,1219,Residential,Fri May 16 00:00:00 EDT 2008,124000,38.655554,-121.4642756813 SCOTER WAY,SACRAMENTO,95842,CA,4,2,1127,Residential,Fri May 16 00:00:00 EDT 2008,124000,38.69043,-121.3610356548 GRAYLOCK LN,NORTH HIGHLANDS,95660,CA,3,2,1272,Residential,Fri May 16 00:00:00 EDT 2008,124413,38.686061,-121.3699491630 GLIDDEN AVE,SACRAMENTO,95822,CA,4,2,1253,Residential,Fri May 16 00:00:00 EDT 2008,125000,38.482717,-121.4996837825 DALEWOODS WAY,SACRAMENTO,95828,CA,3,2,1120,Residential,Fri May 16 00:00:00 EDT 2008,130000,38.477297,-121.4115134073 TRESLER AVE,NORTH HIGHLANDS,95660,CA,2,2,1118,Residential,Fri May 16 00:00:00 EDT 2008,131750,38.659016,-121.3704574288 DYMIC WAY,SACRAMENTO,95838,CA,4,3,1890,Residential,Fri May 16 00:00:00 EDT 2008,137721,38.646541,-121.4411391158 SAN IGNACIO WAY,SACRAMENTO,95833,CA,3,2,1260,Residential,Fri May 16 00:00:00 EDT 2008,137760,38.623045,-121.4862794904 J PKWY,SACRAMENTO,95823,CA,3,2,1400,Residential,Fri May 16 00:00:00 EDT 2008,138000,38.487297,-121.442952931 HOWE AVE,SACRAMENTO,95821,CA,3,1,1264,Residential,Fri May 16 00:00:00 EDT 2008,140000,38.619012,-121.4153295531 JANSEN DR,SACRAMENTO,95824,CA,3,1,1060,Residential,Fri May 16 00:00:00 EDT 2008,145000,38.522015,-121.4387137836 ORCHARD WOODS CIR,SACRAMENTO,95828,CA,2,2,1132,Residential,Fri May 16 00:00:00 EDT 2008,145000,38.47955,-121.4108674055 DEERBROOK DR,SACRAMENTO,95823,CA,3,2,1466,Residential,Fri May 16 00:00:00 EDT 2008,150000,38.472117,-121.4595899937 BURLINE ST,SACRAMENTO,95827,CA,3,2,1092,Residential,Fri May 16 00:00:00 EDT 2008,150000,38.559641,-121.323166948 MIRADOR WAY,SACRAMENTO,95828,CA,4,2,1628,Residential,Fri May 16 00:00:00 EDT 2008,151000,38.493484,-121.420354909 RUGER CT,SACRAMENTO,95842,CA,3,2,960,Residential,Fri May 16 00:00:00 EDT 2008,155000,38.68747,-121.3492347204 KERSTEN ST,CITRUS HEIGHTS,95621,CA,3,2,1075,Residential,Fri May 16 00:00:00 EDT 2008,155800,38.695863,-121.3008143150 ROSEMONT DR,SACRAMENTO,95826,CA,3,2,1428,Residential,Fri May 16 00:00:00 EDT 2008,156142,38.554927,-121.355218200 STEINBECK WAY,SACRAMENTO,95828,CA,4,2,1358,Residential,Fri May 16 00:00:00 EDT 2008,158000,38.474854,-121.4047268198 STEVENSON AVE,SACRAMENTO,95828,CA,6,4,2475,Multi-Family,Fri May 16 00:00:00 EDT 2008,159900,38.465271,-121.404266824 OLIVE TREE WAY,CITRUS HEIGHTS,95610,CA,3,2,1410,Residential,Fri May 16 00:00:00 EDT 2008,160000,38.689239,-121.2677373536 SUN MAIDEN WAY,ANTELOPE,95843,CA,3,2,1711,Residential,Fri May 16 00:00:00 EDT 2008,161500,38.70968,-121.3823284517 OLYMPIAD WAY,SACRAMENTO,95826,CA,4,2,1483,Residential,Fri May 16 00:00:00 EDT 2008,161600,38.536751,-121.359154925 COBDEN CT,GALT,95632,CA,3,2,1140,Residential,Fri May 16 00:00:00 EDT 2008,162000,38.282047,-121.2958128225 SCOTTSDALE DR,SACRAMENTO,95828,CA,4,2,1549,Residential,Fri May 16 00:00:00 EDT 2008,165000,38.487864,-121.4024768758 LEMAS RD,SACRAMENTO,95828,CA,3,2,1410,Residential,Fri May 16 00:00:00 EDT 2008,165000,38.467487,-121.3770556121 ALPINESPRING WAY,ELK GROVE,95758,CA,3,2,1240,Residential,Fri May 16 00:00:00 EDT 2008,167293,38.434075,-121.4326235937 YORK GLEN WAY,SACRAMENTO,95842,CA,5,2,1712,Residential,Fri May 16 00:00:00 EDT 2008,168000,38.677003,-121.3544546417 SUNNYFIELD WAY,SACRAMENTO,95823,CA,4,2,1580,Residential,Fri May 16 00:00:00 EDT 2008,168000,38.449153,-121.4282724008 GREY LIVERY WAY,ANTELOPE,95843,CA,3,2,1669,Residential,Fri May 16 00:00:00 EDT 2008,168750,38.71846,-121.3708628920 ROSETTA CIR,SACRAMENTO,95826,CA,3,1,1029,Residential,Fri May 16 00:00:00 EDT 2008,168750,38.544374,-121.3708748300 LICHEN DR,CITRUS HEIGHTS,95621,CA,3,1,1103,Residential,Fri May 16 00:00:00 EDT 2008,170000,38.71641,-121.3062398884 AMBERJACK WAY,SACRAMENTO,95828,CA,3,2,2161,Residential,Fri May 16 00:00:00 EDT 2008,170250,38.479343,-121.3725534480 VALLEY HI DR,SACRAMENTO,95823,CA,3,2,1650,Residential,Fri May 16 00:00:00 EDT 2008,173000,38.466781,-121.4509552250 FOREBAY RD,POLLOCK PINES,95726,CA,3,1,1320,Residential,Fri May 16 00:00:00 EDT 2008,175000,38.77491,-120.5975993529 FABERGE WAY,SACRAMENTO,95826,CA,3,2,1200,Residential,Fri May 16 00:00:00 EDT 2008,176095,38.553275,-121.3462181792 DAWNELLE WAY,SACRAMENTO,95835,CA,3,2,1170,Residential,Fri May 16 00:00:00 EDT 2008,176250,38.68271,-121.5016977800 TABARE CT,CITRUS HEIGHTS,95621,CA,3,2,1199,Residential,Fri May 16 00:00:00 EDT 2008,178000,38.70799,-121.3029798531 HERMITAGE WAY,SACRAMENTO,95823,CA,4,2,1695,Residential,Fri May 16 00:00:00 EDT 2008,179000,38.448452,-121.4285362421 BERRYWOOD DR,RANCHO CORDOVA,95670,CA,3,2,1157,Residential,Fri May 16 00:00:00 EDT 2008,180000,38.60868,-121.278491005 MORENO WAY,SACRAMENTO,95838,CA,3,2,1410,Residential,Fri May 16 00:00:00 EDT 2008,180000,38.646206,-121.4427671675 VERNON ST Unit 24,ROSEVILLE,95678,CA,3,2,1174,Residential,Fri May 16 00:00:00 EDT 2008,180000,38.734136,-121.29963924 WINDCHIME CT,SACRAMENTO,95823,CA,3,2,1593,Residential,Fri May 16 00:00:00 EDT 2008,181000,38.44617,-121.427824540 HARLING CT,RIO LINDA,95673,CA,3,2,1093,Residential,Fri May 16 00:00:00 EDT 2008,182000,38.68279,-121.4535091207 CRESCENDO DR,ROSEVILLE,95678,CA,3,2,1770,Residential,Fri May 16 00:00:00 EDT 2008,182587,38.72446,-121.2928297577 EDDYLEE WAY,SACRAMENTO,95822,CA,4,2,1436,Residential,Fri May 16 00:00:00 EDT 2008,185074,38.48291,-121.4915098369 FOPPIANO WAY,SACRAMENTO,95829,CA,3,2,1124,Residential,Fri May 16 00:00:00 EDT 2008,185833,38.453839,-121.3579198817 SAWTELLE WAY,SACRAMENTO,95826,CA,4,2,1139,Residential,Fri May 16 00:00:00 EDT 2008,186785,38.565322,-121.3742511910 BONAVISTA WAY,SACRAMENTO,95832,CA,3,2,1638,Residential,Fri May 16 00:00:00 EDT 2008,187000,38.476048,-121.4949618 TIDE CT,SACRAMENTO,95833,CA,3,2,1328,Residential,Fri May 16 00:00:00 EDT 2008,188335,38.609864,-121.4923048952 ROCKY CREEK CT,ELK GROVE,95758,CA,3,2,1273,Residential,Fri May 16 00:00:00 EDT 2008,190000,38.431239,-121.44001435 EXCHANGE ST,SACRAMENTO,95838,CA,3,1,1082,Residential,Fri May 16 00:00:00 EDT 2008,190000,38.659434,-121.45523610105 MONTE VALLO CT,SACRAMENTO,95827,CA,4,2,1578,Residential,Fri May 16 00:00:00 EDT 2008,190000,38.573917,-121.3169163930 ANNABELLE AVE,ROSEVILLE,95661,CA,2,1,796,Residential,Fri May 16 00:00:00 EDT 2008,190000,38.727609,-121.2264944854 TANGERINE AVE,SACRAMENTO,95823,CA,3,2,1386,Residential,Fri May 16 00:00:00 EDT 2008,191250,38.478239,-121.4463262909 SHAWN WAY,RANCHO CORDOVA,95670,CA,3,2,1452,Residential,Fri May 16 00:00:00 EDT 2008,193000,38.589925,-121.2990594290 BLACKFORD WAY,SACRAMENTO,95823,CA,3,2,1513,Residential,Fri May 16 00:00:00 EDT 2008,193500,38.470494,-121.4541625890 TT TRAK,FORESTHILL,95631,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,194818,39.020808,-120.8215187015 WOODSIDE DR,SACRAMENTO,95842,CA,4,2,1578,Residential,Fri May 16 00:00:00 EDT 2008,195000,38.693071,-121.3323656019 CHESHIRE WAY,CITRUS HEIGHTS,95610,CA,4,3,1736,Residential,Fri May 16 00:00:00 EDT 2008,195000,38.676437,-121.2791653330 VILLAGE CT,CAMERON PARK,95682,CA,2,2,0,Residential,Fri May 16 00:00:00 EDT 2008,195000,38.690504,-120.9962452561 VERNA WAY,SACRAMENTO,95821,CA,3,1,1473,Residential,Fri May 16 00:00:00 EDT 2008,195000,38.611055,-121.3699643522 22ND AVE,SACRAMENTO,95820,CA,3,1,1150,Residential,Fri May 16 00:00:00 EDT 2008,198000,38.532725,-121.4690782880 CANDIDO DR,SACRAMENTO,95833,CA,3,2,1127,Residential,Fri May 16 00:00:00 EDT 2008,199900,38.618019,-121.5102156908 PIN OAK CT,FAIR OAKS,95628,CA,3,1,1144,Residential,Fri May 16 00:00:00 EDT 2008,200000,38.66424,-121.3036755733 ANGELINA AVE,CARMICHAEL,95608,CA,3,1,972,Residential,Fri May 16 00:00:00 EDT 2008,201000,38.622634,-121.3308467849 BONNY DOWNS WAY,ELK GROVE,95758,CA,4,2,2306,Residential,Fri May 16 00:00:00 EDT 2008,204918,38.42139,-121.4113398716 LONGSPUR WAY,ANTELOPE,95843,CA,3,2,1479,Residential,Fri May 16 00:00:00 EDT 2008,205000,38.724083,-121.35846320 EL DORADO ST,EL DORADO,95623,CA,2,1,1040,Residential,Fri May 16 00:00:00 EDT 2008,205000,38.678758,-120.8441182328 DOROTHY JUNE WAY,SACRAMENTO,95838,CA,3,2,1430,Residential,Fri May 16 00:00:00 EDT 2008,205878,38.641727,-121.4127031986 DANVERS WAY,SACRAMENTO,95832,CA,4,2,1800,Residential,Fri May 16 00:00:00 EDT 2008,207000,38.47723,-121.4925687901 GAZELLE TRAIL WAY,ANTELOPE,95843,CA,4,2,1953,Residential,Fri May 16 00:00:00 EDT 2008,207744,38.71174,-121.3426756080 BRIDGECROSS DR,SACRAMENTO,95835,CA,3,2,1120,Residential,Fri May 16 00:00:00 EDT 2008,209000,38.681952,-121.50500920 GROTH CIR,SACRAMENTO,95834,CA,3,2,1232,Residential,Fri May 16 00:00:00 EDT 2008,210000,38.640807,-121.5335221900 DANBROOK DR,SACRAMENTO,95835,CA,1,1,984,Condo,Fri May 16 00:00:00 EDT 2008,210944,38.668433,-121.503471140 VENTO CT,ROSEVILLE,95678,CA,3,2,0,Condo,Fri May 16 00:00:00 EDT 2008,212500,38.793533,-121.2896858442 KEUSMAN ST,ELK GROVE,95758,CA,4,2,2329,Residential,Fri May 16 00:00:00 EDT 2008,213750,38.449651,-121.4147049552 SUNLIGHT LN,ELK GROVE,95758,CA,3,2,1351,Residential,Fri May 16 00:00:00 EDT 2008,215000,38.410561,-121.4043272733 YUMA CT,CAMERON PARK,95682,CA,2,2,0,Residential,Fri May 16 00:00:00 EDT 2008,215000,38.691215,-120.9949491407 TIFFANY CIR,ROSEVILLE,95661,CA,4,1,1376,Residential,Fri May 16 00:00:00 EDT 2008,215000,38.736392,-121.2664636 CRESTVIEW DR,DIAMOND SPRINGS,95619,CA,3,2,1300,Residential,Fri May 16 00:00:00 EDT 2008,216033,38.688255,-120.8102351528 HESKET WAY,SACRAMENTO,95825,CA,4,2,1566,Residential,Fri May 16 00:00:00 EDT 2008,220000,38.593598,-121.4036372327 32ND ST,SACRAMENTO,95817,CA,2,1,1115,Residential,Fri May 16 00:00:00 EDT 2008,220000,38.557433,-121.470341833 2ND AVE,SACRAMENTO,95818,CA,2,1,1032,Residential,Fri May 16 00:00:00 EDT 2008,220000,38.556818,-121.4906697252 CARRIAGE DR,CITRUS HEIGHTS,95621,CA,4,2,1419,Residential,Fri May 16 00:00:00 EDT 2008,220000,38.698058,-121.2948939815 PASO FINO WAY,ELK GROVE,95757,CA,3,2,1261,Residential,Fri May 16 00:00:00 EDT 2008,220000,38.404888,-121.4439985532 ENGLE RD,CARMICHAEL,95608,CA,2,2,1637,Residential,Fri May 16 00:00:00 EDT 2008,220702,38.63173,-121.3352861139 CLINTON RD,SACRAMENTO,95825,CA,4,2,1776,Multi-Family,Fri May 16 00:00:00 EDT 2008,221250,38.585291,-121.4068249176 SAGE GLEN WAY,ELK GROVE,95758,CA,3,2,1338,Residential,Fri May 16 00:00:00 EDT 2008,222000,38.423913,-121.4391159967 HATHERTON WAY,ELK GROVE,95757,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,222500,38.3052,-121.40339264 BOULDER RIVER WAY,ELK GROVE,95624,CA,5,2,2254,Residential,Fri May 16 00:00:00 EDT 2008,222750,38.421713,-121.345191320 GROTH CIR,SACRAMENTO,95834,CA,3,2,1441,Residential,Fri May 16 00:00:00 EDT 2008,225000,38.638882,-121.531883137 GUNNISON AVE,SACRAMENTO,95838,CA,4,2,1991,Residential,Fri May 16 00:00:00 EDT 2008,225000,38.650729,-121.4664838209 RIVALLO WAY,SACRAMENTO,95829,CA,4,3,2126,Residential,Fri May 16 00:00:00 EDT 2008,228750,38.459524,-121.35018637 PERIWINKLE CIR,ELK GROVE,95624,CA,3,2,1094,Residential,Fri May 16 00:00:00 EDT 2008,229000,38.443184,-121.3643883425 MEADOW WAY,ROCKLIN,95677,CA,3,2,1462,Residential,Fri May 16 00:00:00 EDT 2008,230095,38.798028,-121.235364107 JARVIS CIR,SACRAMENTO,95834,CA,5,3,2258,Residential,Fri May 16 00:00:00 EDT 2008,232500,38.639891,-121.5376032319 THORES ST,RANCHO CORDOVA,95670,CA,3,2,1074,Residential,Fri May 16 00:00:00 EDT 2008,233000,38.59675,-121.3127168935 MOUNTAIN HOME CT,ELK GROVE,95624,CA,4,2,2111,Residential,Fri May 16 00:00:00 EDT 2008,233500,38.38751,-121.3702762566 SERENATA WAY,SACRAMENTO,95835,CA,3,2,1686,Residential,Fri May 16 00:00:00 EDT 2008,239000,38.671556,-121.5209164085 COUNTRY DR,ANTELOPE,95843,CA,4,3,1915,Residential,Fri May 16 00:00:00 EDT 2008,240000,38.706209,-121.3695099297 TROUT WAY,ELK GROVE,95624,CA,4,2,2367,Residential,Fri May 16 00:00:00 EDT 2008,240000,38.420637,-121.3757987 ARCHIBALD CT,SACRAMENTO,95823,CA,3,2,1962,Residential,Fri May 16 00:00:00 EDT 2008,240971,38.443305,-121.43529611130 EEL RIVER CT,RANCHO CORDOVA,95670,CA,2,2,1406,Residential,Fri May 16 00:00:00 EDT 2008,242000,38.625932,-121.2715178323 REDBANK WAY,SACRAMENTO,95829,CA,3,2,1789,Residential,Fri May 16 00:00:00 EDT 2008,243450,38.455753,-121.34927316 BRONCO CREEK CT,SACRAMENTO,95835,CA,4,2,1876,Residential,Fri May 16 00:00:00 EDT 2008,243500,38.674226,-121.5254978316 NORTHAM DR,ANTELOPE,95843,CA,3,2,1235,Residential,Fri May 16 00:00:00 EDT 2008,246544,38.720767,-121.3766784240 WINJE DR,ANTELOPE,95843,CA,4,2,2504,Residential,Fri May 16 00:00:00 EDT 2008,246750,38.70884,-121.3595593569 SODA WAY,SACRAMENTO,95834,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,247000,38.631139,-121.5018795118 ROBANDER ST,CARMICHAEL,95608,CA,3,2,1676,Residential,Fri May 16 00:00:00 EDT 2008,247000,38.657267,-121.3103525976 KYLENCH CT,CITRUS HEIGHTS,95621,CA,3,2,1367,Residential,Fri May 16 00:00:00 EDT 2008,249000,38.708966,-121.324679247 DELAIR WAY,ELK GROVE,95758,CA,4,3,1899,Residential,Fri May 16 00:00:00 EDT 2008,249000,38.422241,-121.4580229054 DESCENDANT DR,ELK GROVE,95758,CA,3,2,1636,Residential,Fri May 16 00:00:00 EDT 2008,250000,38.428852,-121.4156283450 WHITNOR CT,SACRAMENTO,95821,CA,3,2,1828,Residential,Fri May 16 00:00:00 EDT 2008,250000,38.627698,-121.3696986288 LONETREE BLVD,ROCKLIN,95765,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,250000,38.804993,-121.2936099355 MATADOR WAY,SACRAMENTO,95826,CA,4,2,1438,Residential,Fri May 16 00:00:00 EDT 2008,252000,38.555633,-121.3506918671 SUMMER SUN WAY,ELK GROVE,95624,CA,3,2,1451,Residential,Fri May 16 00:00:00 EDT 2008,255000,38.442845,-121.3732721890 GENEVA PL,SACRAMENTO,95825,CA,3,1,1520,Residential,Fri May 16 00:00:00 EDT 2008,255000,38.599449,-121.4003051813 AVENIDA MARTINA,ROSEVILLE,95747,CA,3,2,1506,Residential,Fri May 16 00:00:00 EDT 2008,255000,38.776649,-121.339589191 BARNHART CIR,SACRAMENTO,95835,CA,4,2,2605,Residential,Fri May 16 00:00:00 EDT 2008,257200,38.675594,-121.5158786221 GREEN TOP WAY,ORANGEVALE,95662,CA,3,2,1196,Residential,Fri May 16 00:00:00 EDT 2008,260000,38.679409,-121.2191072298 PRIMROSE LN,LINCOLN,95648,CA,3,2,1621,Residential,Fri May 16 00:00:00 EDT 2008,260000,38.89918,-121.3225145635 LOS PUEBLOS WAY,SACRAMENTO,95835,CA,3,2,1811,Residential,Fri May 16 00:00:00 EDT 2008,263500,38.679191,-121.53762210165 LOFTON WAY,ELK GROVE,95757,CA,3,2,1540,Residential,Fri May 16 00:00:00 EDT 2008,266510,38.387708,-121.4365221251 GREEN RAVINE DR,LINCOLN,95648,CA,4,2,0,Residential,Fri May 16 00:00:00 EDT 2008,267750,38.88156,-121.3013436001 SHOO FLY RD,PLACERVILLE,95667,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,270000,38.813546,-120.8092543040 PARKHAM DR,ROSEVILLE,95747,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,271000,38.770835,-121.3669962674 TAM O SHANTER DR,EL DORADO HILLS,95762,CA,4,2,0,Residential,Fri May 16 00:00:00 EDT 2008,272700,38.695801,-121.0792166007 MARYBELLE LN,SHINGLE SPRINGS,95682,CA,0,0,0,Unkown,Fri May 16 00:00:00 EDT 2008,275000,38.64347,-120.8881839949 NESTLING CIR,ELK GROVE,95757,CA,3,2,1543,Residential,Fri May 16 00:00:00 EDT 2008,275000,38.397455,-121.4683912915 HOLDREGE WAY,SACRAMENTO,95835,CA,5,3,2494,Residential,Fri May 16 00:00:00 EDT 2008,276000,38.663728,-121.5258332678 BRIARTON DR,LINCOLN,95648,CA,3,2,1650,Residential,Fri May 16 00:00:00 EDT 2008,276500,38.844116,-121.274806294 SPARROW DR,GALT,95632,CA,4,3,2214,Residential,Fri May 16 00:00:00 EDT 2008,278000,38.258976,-121.3212662987 DIORITE WAY,SACRAMENTO,95835,CA,5,3,2280,Residential,Fri May 16 00:00:00 EDT 2008,279000,38.667332,-121.5282766326 APPIAN WAY,CARMICHAEL,95608,CA,3,2,1443,Residential,Fri May 16 00:00:00 EDT 2008,280000,38.66266,-121.3168586905 COBALT WAY,CITRUS HEIGHTS,95621,CA,4,2,1582,Residential,Fri May 16 00:00:00 EDT 2008,280000,38.691393,-121.3052158986 HAFLINGER WAY,ELK GROVE,95757,CA,3,2,1857,Residential,Fri May 16 00:00:00 EDT 2008,285000,38.397923,-121.4502192916 BABSON DR,ELK GROVE,95758,CA,3,2,1735,Residential,Fri May 16 00:00:00 EDT 2008,288000,38.417191,-121.47389710133 NEBBIOLO CT,ELK GROVE,95624,CA,4,3,2096,Residential,Fri May 16 00:00:00 EDT 2008,289000,38.391085,-121.3472311103 COMMONS DR,SACRAMENTO,95825,CA,3,2,1720,Residential,Fri May 16 00:00:00 EDT 2008,290000,38.567865,-121.4106994636 TEAL BAY CT,ANTELOPE,95843,CA,4,2,2160,Residential,Fri May 16 00:00:00 EDT 2008,290000,38.704554,-121.3547531524 YOUNGS AVE,SACRAMENTO,95838,CA,4,2,1382,Residential,Fri May 16 00:00:00 EDT 2008,293996,38.644927,-121.43054865 CONRAD CT,PLACERVILLE,95667,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,294000,38.729993,-120.8024588463 TERRACOTTA CT,ELK GROVE,95624,CA,4,2,1721,Residential,Fri May 16 00:00:00 EDT 2008,294173,38.450548,-121.3630025747 KING RD,LOOMIS,95650,CA,4,2,1328,Residential,Fri May 16 00:00:00 EDT 2008,295000,38.825096,-121.1984328253 KEEGAN WAY,ELK GROVE,95624,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,298000,38.446286,-121.4008179204 TROUT WAY,ELK GROVE,95624,CA,4,2,1982,Residential,Fri May 16 00:00:00 EDT 2008,298000,38.422221,-121.3757991828 2ND AVE,SACRAMENTO,95818,CA,2,1,1144,Residential,Fri May 16 00:00:00 EDT 2008,299000,38.556844,-121.4907691113 COMMONS DR,SACRAMENTO,95825,CA,2,2,1623,Residential,Fri May 16 00:00:00 EDT 2008,300000,38.567795,-121.4107032341 BIG STRIKE TRL,COOL,95614,CA,3,2,1457,Residential,Fri May 16 00:00:00 EDT 2008,300000,38.905927,-120.9751699452 RED SPRUCE WAY,ELK GROVE,95624,CA,6,3,2555,Residential,Fri May 16 00:00:00 EDT 2008,300000,38.404505,-121.3469385776 TERRACE DR,ROCKLIN,95765,CA,3,2,1577,Residential,Fri May 16 00:00:00 EDT 2008,300567,38.800539,-121.2609795908 MCLEAN DR,ELK GROVE,95757,CA,5,3,2592,Residential,Fri May 16 00:00:00 EDT 2008,303000,38.38912,-121.4343898215 PEREGRINE WAY,CITRUS HEIGHTS,95610,CA,3,2,1401,Residential,Fri May 16 00:00:00 EDT 2008,305000,38.715493,-121.262931104 HILLSDALE LN,LINCOLN,95648,CA,4,2,0,Residential,Fri May 16 00:00:00 EDT 2008,306000,38.865017,-121.323022949 PANAMA AVE,CARMICHAEL,95608,CA,3,2,1502,Residential,Fri May 16 00:00:00 EDT 2008,310000,38.618369,-121.3261871356 HARTLEY WAY,FOLSOM,95630,CA,3,2,1327,Residential,Fri May 16 00:00:00 EDT 2008,310000,38.651617,-121.131674633 HANISCH DR,ROSEVILLE,95678,CA,4,3,1800,Residential,Fri May 16 00:00:00 EDT 2008,310000,38.76349,-121.27588163 ANGEL ISLAND CIR,SACRAMENTO,95831,CA,4,2,2169,Residential,Fri May 16 00:00:00 EDT 2008,311518,38.490408,-121.5476641571 WILD OAK LN,LINCOLN,95648,CA,5,3,2457,Residential,Fri May 16 00:00:00 EDT 2008,312000,38.844144,-121.2741745222 COPPER SUNSET WAY,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,313000,38.529181,-121.2247555601 SPINDRIFT LN,ORANGEVALE,95662,CA,4,2,2004,Residential,Fri May 16 00:00:00 EDT 2008,315000,38.668289,-121.192316652 FIFTEEN MILE DR,ROSEVILLE,95678,CA,4,3,2212,Residential,Fri May 16 00:00:00 EDT 2008,315000,38.775872,-121.2988647921 DOE TRAIL WAY,ANTELOPE,95843,CA,5,3,3134,Residential,Fri May 16 00:00:00 EDT 2008,315000,38.711927,-121.3436084204 LUSK DR,SACRAMENTO,95864,CA,3,2,1360,Residential,Fri May 16 00:00:00 EDT 2008,315000,38.606569,-121.3684245321 DELTA DR,ROCKLIN,95765,CA,4,2,0,Residential,Fri May 16 00:00:00 EDT 2008,315000,38.815493,-121.2629085608 ROSEDALE WAY,SACRAMENTO,95822,CA,3,2,1276,Residential,Fri May 16 00:00:00 EDT 2008,320000,38.525115,-121.5186893372 BERETANIA WAY,SACRAMENTO,95834,CA,4,3,2962,Residential,Fri May 16 00:00:00 EDT 2008,322000,38.64977,-121.534482422 STEFANIE DR,ROCKLIN,95765,CA,4,2,1888,Residential,Fri May 16 00:00:00 EDT 2008,325000,38.82273,-121.264243232 PARKHAM DR,ROSEVILLE,95747,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,325500,38.772821,-121.364821448 ELMWOOD CT,ROSEVILLE,95678,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,326951,38.771917,-121.3044391214 DAWNWOOD DR,GALT,95632,CA,3,2,1548,Residential,Fri May 16 00:00:00 EDT 2008,328370,38.290119,-121.2860231440 EMERALD LN,LINCOLN,95648,CA,2,2,0,Residential,Fri May 16 00:00:00 EDT 2008,330000,38.861864,-121.2674783349 CORVINA DR,RANCHO CORDOVA,95670,CA,4,3,2109,Residential,Fri May 16 00:00:00 EDT 2008,330000,38.580545,-121.27901610254 JULIANA WAY,SACRAMENTO,95827,CA,4,2,2484,Residential,Fri May 16 00:00:00 EDT 2008,331200,38.56803,-121.309966149 OPUS CIR,SACRAMENTO,95834,CA,4,3,2258,Residential,Fri May 16 00:00:00 EDT 2008,332000,38.6354,-121.53499580 REGENCY PARK CIR,SACRAMENTO,95835,CA,3,3,2212,Residential,Fri May 16 00:00:00 EDT 2008,334000,38.674864,-121.49585544 CAMAS CT,ORANGEVALE,95662,CA,3,2,1616,Residential,Fri May 16 00:00:00 EDT 2008,335000,38.667703,-121.2094565102 ARCHCREST WAY,SACRAMENTO,95835,CA,4,2,2372,Residential,Fri May 16 00:00:00 EDT 2008,341000,38.66841,-121.4946395725 BALFOR RD,ROCKLIN,95765,CA,5,3,2606,Residential,Fri May 16 00:00:00 EDT 2008,346375,38.807816,-121.2700087697 ROSEHALL DR,ROSEVILLE,95678,CA,5,3,0,Residential,Fri May 16 00:00:00 EDT 2008,347225,38.79218,-121.285954821 HUTSON WAY,ELK GROVE,95757,CA,5,3,2877,Residential,Fri May 16 00:00:00 EDT 2008,349000,38.386239,-121.4481594509 WINJE DR,ANTELOPE,95843,CA,3,2,2960,Residential,Fri May 16 00:00:00 EDT 2008,350000,38.709513,-121.3593571965 LAURELHURST LN,LINCOLN,95648,CA,2,2,0,Residential,Fri May 16 00:00:00 EDT 2008,350000,38.853869,-121.2717426709 ROSE BRIDGE DR,ROSEVILLE,95678,CA,3,2,2172,Residential,Fri May 16 00:00:00 EDT 2008,350000,38.792461,-121.275711281 SPYGLASS HL,ROSEVILLE,95678,CA,3,2,2100,Condo,Fri May 16 00:00:00 EDT 2008,350000,38.762153,-121.2834517709 RIVER VILLAGE DR,SACRAMENTO,95831,CA,3,2,1795,Residential,Fri May 16 00:00:00 EDT 2008,351000,38.483212,-121.540194165 BRISBANE CIR,EL DORADO HILLS,95762,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,356200,38.686067,-121.073413506 BEDFORD CT,ROSEVILLE,95661,CA,4,2,2295,Residential,Fri May 16 00:00:00 EDT 2008,360000,38.733985,-121.2367669048 PINTO CANYON WAY,ROSEVILLE,95747,CA,4,3,2577,Residential,Fri May 16 00:00:00 EDT 2008,367463,38.792493,-121.3318992274 IVY BRIDGE DR,ROSEVILLE,95747,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,375000,38.778561,-121.36200814004 WALNUT AVE,WALNUT GROVE,95690,CA,3,1,1727,Residential,Fri May 16 00:00:00 EDT 2008,380000,38.247659,-121.5151296905 FRANKFORT CT,ELK GROVE,95758,CA,3,2,1485,Residential,Fri May 16 00:00:00 EDT 2008,380578,38.429139,-121.4234443621 WINTUN DR,CARMICHAEL,95608,CA,3,2,1655,Residential,Fri May 16 00:00:00 EDT 2008,386222,38.629929,-121.323086201 KIRKLAND CT,LINCOLN,95648,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,389000,38.867125,-121.31908512075 APPLESBURY CT,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,390000,38.5357,-121.22491975 SIDESADDLE WAY,ROSEVILLE,95661,CA,3,2,2049,Residential,Fri May 16 00:00:00 EDT 2008,395500,38.737872,-121.2490255420 ALMOND FALLS WAY,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,396000,38.527384,-121.2335319677 PILLITERI CT,ELK GROVE,95757,CA,5,3,2875,Residential,Fri May 16 00:00:00 EDT 2008,397000,38.405571,-121.4451861515 EL CAMINO VERDE DR,LINCOLN,95648,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,400000,38.904869,-121.32075556 PLATT CIR,EL DORADO HILLS,95762,CA,4,2,2199,Residential,Fri May 16 00:00:00 EDT 2008,400000,38.656299,-121.0797831792 DIAMOND WOODS CIR,ROSEVILLE,95747,CA,4,3,0,Residential,Fri May 16 00:00:00 EDT 2008,412500,38.808581,-121.327851124 PERKINS WAY,SACRAMENTO,95818,CA,2,1,1304,Residential,Fri May 16 00:00:00 EDT 2008,413500,38.551611,-121.5044374748 SALEM WAY,CARMICHAEL,95608,CA,3,2,2334,Residential,Fri May 16 00:00:00 EDT 2008,415000,38.634111,-121.3533761484 RADCLIFFE WAY,AUBURN,95603,CA,4,3,2278,Residential,Fri May 16 00:00:00 EDT 2008,420454,38.935579,-121.07901851 AIKEN WAY,SACRAMENTO,95819,CA,3,1,1493,Residential,Fri May 16 00:00:00 EDT 2008,425000,38.579326,-121.442522818 KNOLLWOOD DR,CAMERON PARK,95682,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,425000,38.669805,-120.9990071536 STONEY CROSS LN,LINCOLN,95648,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,433500,38.860007,-121.310946509 CASTILLIAN CT,ROSEVILLE,95747,CA,5,3,0,Residential,Fri May 16 00:00:00 EDT 2008,438000,38.804773,-121.341195700 HUNTER PL,FOLSOM,95630,CA,5,3,2787,Residential,Fri May 16 00:00:00 EDT 2008,441000,38.66051,-121.1636891240 FAY CIR,SACRAMENTO,95831,CA,5,3,2824,Residential,Fri May 16 00:00:00 EDT 2008,445000,38.506371,-121.5144561113 SANDWICK WAY,FOLSOM,95630,CA,4,3,3261,Residential,Fri May 16 00:00:00 EDT 2008,446000,38.673882,-121.1050773108 DELWOOD WAY,SACRAMENTO,95821,CA,4,2,2053,Residential,Fri May 16 00:00:00 EDT 2008,450000,38.621566,-121.3708823212 CORNICHE LN,ROSEVILLE,95661,CA,4,3,2379,Residential,Fri May 16 00:00:00 EDT 2008,455000,38.750577,-121.2327682159 BECKETT DR,EL DORADO HILLS,95762,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,460000,38.680092,-121.0364674320 FOUR SEASONS RD,PLACERVILLE,95667,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,475000,38.690867,-120.6936416401 MARSHALL RD,GARDEN VALLEY,95633,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,490000,38.84255,-120.87542089 BECKETT DR,EL DORADO HILLS,95762,CA,4,2,0,Residential,Fri May 16 00:00:00 EDT 2008,493000,38.681778,-121.0358386196 EDGEHILL DR,EL DORADO HILLS,95762,CA,5,4,0,Residential,Fri May 16 00:00:00 EDT 2008,508000,38.676131,-121.038931200 HILLSFORD CT,ROSEVILLE,95747,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,511000,38.780051,-121.3787188217 PLUMERIA AVE,FAIR OAKS,95628,CA,3,2,3173,Residential,Fri May 16 00:00:00 EDT 2008,525000,38.650735,-121.2586284841 VILLAGE GREEN DR,EL DORADO HILLS,95762,CA,4,3,0,Residential,Fri May 16 00:00:00 EDT 2008,533000,38.664066,-121.0567353863 LAS PASAS WAY,SACRAMENTO,95864,CA,3,1,1348,Residential,Fri May 16 00:00:00 EDT 2008,545000,38.588936,-121.373606820 DANA CT,AUBURN,95603,CA,4,3,0,Residential,Fri May 16 00:00:00 EDT 2008,560000,38.865246,-121.0948691165 37TH ST,SACRAMENTO,95816,CA,2,1,1252,Residential,Fri May 16 00:00:00 EDT 2008,575000,38.568438,-121.457854203 CASCADE FALLS DR,FOLSOM,95630,CA,4,3,3229,Residential,Fri May 16 00:00:00 EDT 2008,575000,38.703962,-121.18719880 IZILDA CT,SACRAMENTO,95829,CA,5,4,3863,Residential,Fri May 16 00:00:00 EDT 2008,598695,38.45326,-121.325731800 AVONDALE DR,ROSEVILLE,95747,CA,5,3,0,Residential,Fri May 16 00:00:00 EDT 2008,600000,38.798448,-121.3440544620 BROMWICH CT,ROCKLIN,95677,CA,4,3,0,Residential,Fri May 16 00:00:00 EDT 2008,600000,38.772672,-121.220232620 KESWICK CT,GRANITE BAY,95746,CA,4,3,2356,Residential,Fri May 16 00:00:00 EDT 2008,600000,38.732096,-121.2191424478 GREENBRAE RD,ROCKLIN,95677,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,600000,38.781134,-121.2228018432 BRIGGS DR,ROSEVILLE,95747,CA,5,3,3579,Residential,Fri May 16 00:00:00 EDT 2008,610000,38.78861,-121.339495200 CRADLE MOUNTAIN CT,EL DORADO HILLS,95762,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,622500,38.6478,-121.03092065 IMPRESSIONIST WAY,EL DORADO HILLS,95762,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,680000,38.682961,-121.0332532982 ABERDEEN LN,EL DORADO HILLS,95762,CA,4,3,0,Residential,Fri May 16 00:00:00 EDT 2008,879000,38.706692,-121.0588699401 BARREL RACER CT,WILTON,95693,CA,4,3,4400,Residential,Fri May 16 00:00:00 EDT 2008,884790,38.415298,-121.1948583720 VISTA DE MADERA,LINCOLN,95648,CA,3,3,0,Residential,Fri May 16 00:00:00 EDT 2008,1551,38.851645,-121.23174214151 INDIO DR,SLOUGHHOUSE,95683,CA,3,4,5822,Residential,Fri May 16 00:00:00 EDT 2008,2000,38.490447,-121.1293377401 TOULON LN,SACRAMENTO,95828,CA,4,2,1512,Residential,Thu May 15 00:00:00 EDT 2008,56950,38.488628,-121.3877599127 NEWHALL DR Unit 34,SACRAMENTO,95826,CA,1,1,611,Condo,Thu May 15 00:00:00 EDT 2008,60000,38.542419,-121.3599045937 BAMFORD DR,SACRAMENTO,95823,CA,2,1,876,Residential,Thu May 15 00:00:00 EDT 2008,61000,38.471139,-121.4322555672 HILLSDALE BLVD,SACRAMENTO,95842,CA,2,1,933,Condo,Thu May 15 00:00:00 EDT 2008,62000,38.670467,-121.3597993920 39TH ST,SACRAMENTO,95820,CA,2,1,864,Residential,Thu May 15 00:00:00 EDT 2008,68566,38.539213,-121.46393701 JESSIE AVE,SACRAMENTO,95838,CA,2,1,1011,Residential,Thu May 15 00:00:00 EDT 2008,70000,38.643978,-121.44956283 ARCADE BLVD,SACRAMENTO,95815,CA,4,2,1158,Residential,Thu May 15 00:00:00 EDT 2008,80000,38.618716,-121.466327601 REGGINALD WAY,SACRAMENTO,95838,CA,3,2,1092,Residential,Thu May 15 00:00:00 EDT 2008,85500,38.64472,-121.452228550 DEL VERDE CIR,SACRAMENTO,95833,CA,2,1,956,Condo,Thu May 15 00:00:00 EDT 2008,92000,38.627147,-121.5007994113 DAYSTAR CT,SACRAMENTO,95824,CA,2,2,1139,Residential,Thu May 15 00:00:00 EDT 2008,93600,38.520469,-121.4586067374 TISDALE WAY,SACRAMENTO,95822,CA,3,1,1058,Residential,Thu May 15 00:00:00 EDT 2008,95000,38.488238,-121.4725613348 RIO LINDA BLVD,SACRAMENTO,95838,CA,3,2,1040,Residential,Thu May 15 00:00:00 EDT 2008,97750,38.628842,-121.4461273935 LIMESTONE WAY,SACRAMENTO,95823,CA,3,2,1354,Residential,Thu May 15 00:00:00 EDT 2008,104000,38.484374,-121.4631576208 GRATTAN WAY,NORTH HIGHLANDS,95660,CA,3,1,1051,Residential,Thu May 15 00:00:00 EDT 2008,105000,38.679279,-121.376615739 E WOODSIDE LN Unit E,SACRAMENTO,95825,CA,1,1,682,Condo,Thu May 15 00:00:00 EDT 2008,107666,38.578675,-121.4099514225 46TH AVE,SACRAMENTO,95824,CA,3,1,1161,Residential,Thu May 15 00:00:00 EDT 2008,109000,38.511893,-121.4576761434 BELL AVE,SACRAMENTO,95838,CA,3,1,1004,Residential,Thu May 15 00:00:00 EDT 2008,110000,38.647398,-121.4329145628 GEORGIA DR,NORTH HIGHLANDS,95660,CA,3,1,1229,Residential,Thu May 15 00:00:00 EDT 2008,110000,38.669587,-121.3798797629 BETH ST,SACRAMENTO,95832,CA,3,2,1249,Residential,Thu May 15 00:00:00 EDT 2008,112500,38.480126,-121.4878692277 BABETTE WAY,SACRAMENTO,95832,CA,3,2,1161,Residential,Thu May 15 00:00:00 EDT 2008,114800,38.479593,-121.484346561 WEATHERFORD WAY,SACRAMENTO,95823,CA,3,1,1010,Residential,Thu May 15 00:00:00 EDT 2008,116000,38.465551,-121.426613035 ESTEPA DR Unit 5C,CAMERON PARK,95682,CA,0,0,0,Condo,Thu May 15 00:00:00 EDT 2008,119000,38.681393,-120.9967135136 CABOT CIR,SACRAMENTO,95820,CA,4,2,1462,Residential,Thu May 15 00:00:00 EDT 2008,121500,38.528479,-121.4118067730 ROBINETTE RD,SACRAMENTO,95828,CA,3,2,1269,Residential,Thu May 15 00:00:00 EDT 2008,122000,38.47709,-121.41056987 LACAM CIR,SACRAMENTO,95820,CA,2,2,1188,Residential,Thu May 15 00:00:00 EDT 2008,123675,38.532359,-121.411671691 NOGALES ST,SACRAMENTO,95838,CA,4,2,1570,Residential,Thu May 15 00:00:00 EDT 2008,126854,38.631925,-121.4277753118 42ND ST,SACRAMENTO,95817,CA,3,2,1093,Residential,Thu May 15 00:00:00 EDT 2008,127059,38.546091,-121.4577457517 50TH AVE,SACRAMENTO,95828,CA,3,1,962,Residential,Thu May 15 00:00:00 EDT 2008,128687,38.507339,-121.4162674071 EVALITA WAY,SACRAMENTO,95823,CA,3,2,1089,Residential,Thu May 15 00:00:00 EDT 2008,129500,38.466388,-121.4588617928 36TH AVE,SACRAMENTO,95824,CA,3,2,1127,Residential,Thu May 15 00:00:00 EDT 2008,130000,38.52049,-121.4113836631 DEMARET DR,SACRAMENTO,95822,CA,4,2,1309,Residential,Thu May 15 00:00:00 EDT 2008,131750,38.506382,-121.4835747043 9TH AVE,RIO LINDA,95673,CA,2,1,970,Residential,Thu May 15 00:00:00 EDT 2008,132000,38.695589,-121.44413397 KENNELFORD CIR,SACRAMENTO,95823,CA,3,2,1144,Residential,Thu May 15 00:00:00 EDT 2008,134000,38.462376,-121.4265562636 TRONERO WAY,RANCHO CORDOVA,95670,CA,3,1,1000,Residential,Thu May 15 00:00:00 EDT 2008,134000,38.593049,-121.303041530 TOPANGA LN Unit 204,LINCOLN,95648,CA,0,0,0,Condo,Thu May 15 00:00:00 EDT 2008,138000,38.88415,-121.2702773604 KODIAK WAY,ANTELOPE,95843,CA,3,2,1206,Residential,Thu May 15 00:00:00 EDT 2008,142000,38.706175,-121.3797762149 COTTAGE WAY,SACRAMENTO,95825,CA,3,1,1285,Residential,Thu May 15 00:00:00 EDT 2008,143012,38.603593,-121.4170118632 PRAIRIEWOODS DR,SACRAMENTO,95828,CA,3,2,1543,Residential,Thu May 15 00:00:00 EDT 2008,145846,38.477563,-121.384382612 STONE BLVD,WEST SACRAMENTO,95691,CA,2,1,884,Residential,Thu May 15 00:00:00 EDT 2008,147000,38.563084,-121.5355794180 12TH AVE,SACRAMENTO,95817,CA,3,1,1019,Residential,Thu May 15 00:00:00 EDT 2008,148750,38.54117,-121.4581298025 ARROYO VISTA DR,SACRAMENTO,95823,CA,4,2,1392,Residential,Thu May 15 00:00:00 EDT 2008,150000,38.46654,-121.4190295754 WALERGA RD Unit 4,SACRAMENTO,95842,CA,2,1,924,Condo,Thu May 15 00:00:00 EDT 2008,150454,38.672567,-121.3567548 LA ROCAS CT,SACRAMENTO,95823,CA,3,2,1217,Residential,Thu May 15 00:00:00 EDT 2008,151087,38.46616,-121.4482838636 LONGSPUR WAY,ANTELOPE,95843,CA,3,2,1670,Residential,Thu May 15 00:00:00 EDT 2008,157296,38.725873,-121.358561941 EXPEDITION WAY,SACRAMENTO,95832,CA,3,2,1302,Residential,Thu May 15 00:00:00 EDT 2008,157500,38.473775,-121.4937774351 TURNBRIDGE DR,SACRAMENTO,95823,CA,3,2,1488,Residential,Thu May 15 00:00:00 EDT 2008,160000,38.502034,-121.4560276513 HOLIDAY WAY,NORTH HIGHLANDS,95660,CA,3,2,1373,Residential,Thu May 15 00:00:00 EDT 2008,160000,38.685361,-121.3769388321 MISTLETOE WAY,CITRUS HEIGHTS,95621,CA,4,2,1381,Residential,Thu May 15 00:00:00 EDT 2008,161250,38.717738,-121.3083225920 VALLEY GLEN WAY,SACRAMENTO,95823,CA,3,2,1265,Residential,Thu May 15 00:00:00 EDT 2008,164000,38.462821,-121.4331352601 SAN FERNANDO WAY,SACRAMENTO,95818,CA,2,1,881,Residential,Thu May 15 00:00:00 EDT 2008,165000,38.556178,-121.476256501 POPLAR AVE,WEST SACRAMENTO,95691,CA,0,0,0,Residential,Thu May 15 00:00:00 EDT 2008,165000,38.584526,-121.5346098008 SAINT HELENA CT,SACRAMENTO,95829,CA,4,2,1608,Residential,Thu May 15 00:00:00 EDT 2008,165750,38.467012,-121.3599696517 DONEGAL DR,CITRUS HEIGHTS,95621,CA,3,1,1344,Residential,Thu May 15 00:00:00 EDT 2008,166000,38.681554,-121.3129341001 RIO NORTE WAY,SACRAMENTO,95834,CA,3,2,1202,Residential,Thu May 15 00:00:00 EDT 2008,169000,38.634292,-121.485106604 P ST,LINCOLN,95648,CA,3,2,1104,Residential,Thu May 15 00:00:00 EDT 2008,170000,38.893168,-121.30539810001 WOODCREEK OAKS BLVD Unit 815,ROSEVILLE,95747,CA,2,2,0,Condo,Thu May 15 00:00:00 EDT 2008,170000,38.795529,-121.3288197351 GIGI PL,SACRAMENTO,95828,CA,4,2,1859,Multi-Family,Thu May 15 00:00:00 EDT 2008,170000,38.490606,-121.4101737740 DIXIE LOU ST,SACRAMENTO,95832,CA,3,2,1232,Residential,Thu May 15 00:00:00 EDT 2008,170000,38.475853,-121.4770397342 DAVE ST,SACRAMENTO,95828,CA,3,1,1638,Residential,Thu May 15 00:00:00 EDT 2008,170725,38.490822,-121.4016437687 HOWERTON DR,SACRAMENTO,95831,CA,2,2,1177,Residential,Thu May 15 00:00:00 EDT 2008,171750,38.480859,-121.53974526 KAMSON CT,SACRAMENTO,95833,CA,3,2,1582,Residential,Thu May 15 00:00:00 EDT 2008,172000,38.622794,-121.4991737045 PEEVEY CT,SACRAMENTO,95823,CA,2,2,904,Residential,Thu May 15 00:00:00 EDT 2008,173056,38.502254,-121.4514448916 GABLES MILL PL,ELK GROVE,95758,CA,3,2,1340,Residential,Thu May 15 00:00:00 EDT 2008,174000,38.433919,-121.4223471140 EDMONTON DR,SACRAMENTO,95833,CA,3,2,1204,Residential,Thu May 15 00:00:00 EDT 2008,174250,38.62457,-121.4869138879 APPLE PEAR CT,ELK GROVE,95624,CA,4,2,1477,Residential,Thu May 15 00:00:00 EDT 2008,176850,38.44574,-121.37259 WIND CT,SACRAMENTO,95823,CA,4,2,1497,Residential,Thu May 15 00:00:00 EDT 2008,179500,38.45073,-121.4275288570 SHERATON DR,FAIR OAKS,95628,CA,3,1,960,Residential,Thu May 15 00:00:00 EDT 2008,185000,38.667254,-121.2407081550 TOPANGA LN Unit 207,LINCOLN,95648,CA,0,0,0,Condo,Thu May 15 00:00:00 EDT 2008,188000,38.88417,-121.2702221080 RIO NORTE WAY,SACRAMENTO,95834,CA,3,2,1428,Residential,Thu May 15 00:00:00 EDT 2008,188700,38.634335,-121.4860985501 VALLETTA WAY,SACRAMENTO,95820,CA,3,1,1039,Residential,Thu May 15 00:00:00 EDT 2008,189000,38.530144,-121.437495624 MEMORY LN,FAIR OAKS,95628,CA,3,1,1529,Residential,Thu May 15 00:00:00 EDT 2008,189000,38.66745,-121.23646622 WILLOWLEAF DR,CITRUS HEIGHTS,95621,CA,4,3,1892,Residential,Thu May 15 00:00:00 EDT 2008,189836,38.699714,-121.31163527 MEGAN CT,SACRAMENTO,95838,CA,4,2,1887,Residential,Thu May 15 00:00:00 EDT 2008,190000,38.649258,-121.4653086601 WOODMORE OAKS DR,ORANGEVALE,95662,CA,3,2,1294,Residential,Thu May 15 00:00:00 EDT 2008,191250,38.687006,-121.2543191973 DANVERS WAY,SACRAMENTO,95832,CA,3,2,1638,Residential,Thu May 15 00:00:00 EDT 2008,191675,38.477568,-121.4925748001 ARROYO VISTA DR,SACRAMENTO,95823,CA,3,2,1677,Residential,Thu May 15 00:00:00 EDT 2008,195500,38.46734,-121.4198437409 VOYAGER WAY,CITRUS HEIGHTS,95621,CA,3,1,1073,Residential,Thu May 15 00:00:00 EDT 2008,198000,38.700717,-121.3133815 CROSSWIND DR,SACRAMENTO,95838,CA,3,2,1231,Residential,Thu May 15 00:00:00 EDT 2008,200000,38.651386,-121.450425509 LAGUNA CREST WAY,ELK GROVE,95758,CA,3,2,1175,Residential,Thu May 15 00:00:00 EDT 2008,200000,38.42442,-121.4403578424 MERRY HILL WAY,ELK GROVE,95624,CA,3,2,1416,Residential,Thu May 15 00:00:00 EDT 2008,200000,38.452075,-121.3664611525 PENNSYLVANIA AVE,WEST SACRAMENTO,95691,CA,0,0,0,Residential,Thu May 15 00:00:00 EDT 2008,200100,38.569943,-121.5275395954 BRIDGECROSS DR,SACRAMENTO,95835,CA,3,2,1358,Residential,Thu May 15 00:00:00 EDT 2008,201528,38.68197,-121.5000258789 SEQUOIA WOOD CT,ELK GROVE,95624,CA,4,2,1609,Residential,Thu May 15 00:00:00 EDT 2008,204750,38.438818,-121.374436600 SILVERTHORNE CIR,SACRAMENTO,95842,CA,4,3,1968,Residential,Thu May 15 00:00:00 EDT 2008,205000,38.68607,-121.3423692221 2ND AVE,SACRAMENTO,95818,CA,2,2,1089,Residential,Thu May 15 00:00:00 EDT 2008,205000,38.555781,-121.4853313230 SMATHERS WAY,CARMICHAEL,95608,CA,3,2,1296,Residential,Thu May 15 00:00:00 EDT 2008,205900,38.623372,-121.3476655209 LAGUNA CREST WAY,ELK GROVE,95758,CA,2,2,1189,Residential,Thu May 15 00:00:00 EDT 2008,207000,38.424421,-121.443915416 LEITCH AVE,SACRAMENTO,95815,CA,2,1,795,Residential,Thu May 15 00:00:00 EDT 2008,207973,38.612694,-121.4566692100 BEATTY WAY,ROSEVILLE,95747,CA,3,2,1371,Residential,Thu May 15 00:00:00 EDT 2008,208250,38.737882,-121.3081426920 GILLINGHAM WAY,NORTH HIGHLANDS,95660,CA,3,1,1310,Residential,Thu May 15 00:00:00 EDT 2008,208318,38.694279,-121.37339582 WILDFLOWER DR,GALT,95632,CA,3,2,1262,Residential,Thu May 15 00:00:00 EDT 2008,209347,38.259708,-121.3116168652 BANTON CIR,ELK GROVE,95624,CA,4,2,1740,Residential,Thu May 15 00:00:00 EDT 2008,211500,38.444,-121.3709938428 MISTY PASS WAY,ANTELOPE,95843,CA,3,2,1517,Residential,Thu May 15 00:00:00 EDT 2008,212000,38.722959,-121.3471157958 ROSEVIEW WAY,SACRAMENTO,95828,CA,3,2,1450,Residential,Thu May 15 00:00:00 EDT 2008,213000,38.467836,-121.4103669020 LUKEN CT,ELK GROVE,95624,CA,3,2,1416,Residential,Thu May 15 00:00:00 EDT 2008,216000,38.451398,-121.3666147809 VALLECITOS WAY,SACRAMENTO,95828,CA,3,1,888,Residential,Thu May 15 00:00:00 EDT 2008,216021,38.508217,-121.4112078445 OLD AUBURN RD,CITRUS HEIGHTS,95610,CA,3,2,1882,Residential,Thu May 15 00:00:00 EDT 2008,219000,38.715423,-121.24674310085 ATKINS DR,ELK GROVE,95757,CA,3,2,1302,Residential,Thu May 15 00:00:00 EDT 2008,219794,38.390893,-121.4378219185 CERROLINDA CIR,ELK GROVE,95758,CA,3,2,1418,Residential,Thu May 15 00:00:00 EDT 2008,220000,38.424497,-121.4265959197 CORTINA CIR,ROSEVILLE,95678,CA,3,2,0,Condo,Thu May 15 00:00:00 EDT 2008,220000,38.793152,-121.2900255429 HESPER WAY,CARMICHAEL,95608,CA,4,2,1319,Residential,Thu May 15 00:00:00 EDT 2008,220000,38.665104,-121.3159011178 WARMWOOD CT,GALT,95632,CA,4,2,1770,Residential,Thu May 15 00:00:00 EDT 2008,220000,38.289544,-121.2846074900 ELUDE CT,SACRAMENTO,95842,CA,4,2,1627,Residential,Thu May 15 00:00:00 EDT 2008,223000,38.69674,-121.3505193557 SODA WAY,SACRAMENTO,95834,CA,0,0,0,Residential,Thu May 15 00:00:00 EDT 2008,224000,38.631026,-121.5018793528 SAINT GEORGE DR,SACRAMENTO,95821,CA,3,1,1040,Residential,Thu May 15 00:00:00 EDT 2008,224000,38.629468,-121.3764457381 WASHBURN WAY,NORTH HIGHLANDS,95660,CA,3,1,960,Residential,Thu May 15 00:00:00 EDT 2008,224252,38.70355,-121.3751032181 WINTERHAVEN CIR,CAMERON PARK,95682,CA,3,2,0,Residential,Thu May 15 00:00:00 EDT 2008,224500,38.69757,-120.9957397540 HICKORY AVE,ORANGEVALE,95662,CA,3,1,1456,Residential,Thu May 15 00:00:00 EDT 2008,225000,38.703056,-121.2352215024 CHAMBERLIN CIR,ELK GROVE,95757,CA,3,2,1450,Residential,Thu May 15 00:00:00 EDT 2008,228000,38.389756,-121.4462462400 INVERNESS DR,LINCOLN,95648,CA,3,2,1358,Residential,Thu May 15 00:00:00 EDT 2008,229027,38.897814,-121.3246915 BISHOPGATE CT,SACRAMENTO,95823,CA,4,2,1329,Residential,Thu May 15 00:00:00 EDT 2008,229500,38.467936,-121.4454775601 REXLEIGH DR,SACRAMENTO,95823,CA,4,2,1715,Residential,Thu May 15 00:00:00 EDT 2008,230000,38.445342,-121.4415041909 YARNELL WAY,ELK GROVE,95758,CA,3,2,1262,Residential,Thu May 15 00:00:00 EDT 2008,230000,38.417382,-121.4843259169 GARLINGTON CT,SACRAMENTO,95829,CA,4,3,2280,Residential,Thu May 15 00:00:00 EDT 2008,232425,38.457679,-121.359626932 RUSKUT WAY,SACRAMENTO,95823,CA,3,2,1477,Residential,Thu May 15 00:00:00 EDT 2008,234000,38.499893,-121.458897933 DAFFODIL WAY,CITRUS HEIGHTS,95610,CA,3,2,1216,Residential,Thu May 15 00:00:00 EDT 2008,235000,38.708824,-121.2568038304 RED FOX WAY,ELK GROVE,95758,CA,4,2,1685,Residential,Thu May 15 00:00:00 EDT 2008,235301,38.417,-121.3974243882 YELLOWSTONE LN,EL DORADO HILLS,95762,CA,3,2,1362,Residential,Thu May 15 00:00:00 EDT 2008,235738,38.655245,-121.075915"; },
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"; }
-            }
-          
-        ,
-            "testmodel.fig2.png": {
-              name: "testmodel.fig2.png",
-              path: "testmodel.fig2.png",
-              size: "9.1 kB",
-              caption: "<p>Some math <span class=\"formula\"><span class=\"limits\"><span class=\"limit\">\u2211</span></span><sub><i>i</i></sub><i>i</i><sup>2</sup></span>.</p>\n",
-              job_properties: {
-                rule: "b",
-                wildcards: "model=testmodel",
-                params: ""
-              },
-              data_uri: function() { return 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vz9WrFgRH/3oR2Pbtm3x+c9/vugRAQAgVVWpVCoVPUQlef3112PSpEnxv//7v7F9+/Zuj3V0dMSkSZNi/fr1MXHixIImBADgePx5re+8BStZdXV1jBo1Ks4666yiRwEAgHTegpVg//79sX///njhhRfioYceiu9///uxePHioscCKJuurq5YsGBBrF27Ng4ePBg1NTUxefLkaG1tjbq6uqLHA6BAAiTBZz7zmbjvvvsiIqKmpibuvffeuPHGGwueCqA89uzZE01NTbFly5Zu1zds2BCrV6+O9vZ2EQJQwbwFK8Gtt94aq1ativvvvz8++MEPxs033xxLly4teiyAsrjtttuOio/DtmzZEgsWLEieCIDTiVdAEowbNy7GjRsXERGzZ8+OK6+8MubPnx+zZs2KAQMGFDwdwKm1du3aPj0OQP8mQArwkY98JP71X/81nnzyyZgwYcJRj8+fPz+GDh3a7VpLS0u0tLRkjQjQawcPHuzT4wCni+XLl8fy5cu7Xdu7d29B0/QfAqQAv/jFLyLije+IdSyLFi3ybd2AM1ZNzYn/0/JmjwOcLo71F8CHvw0vveczIGXU1dV11LXXXnst7r///qitrY3GxsYCpgIor8mTJ/fpcQD6N38NVUY33nhj7Nu3Ly677LKor6+P3bt3x7Jly2LTpk3R1tYWv/Zrv1b0iACnXGtra6xevfqYH0RvaGiI1tbWAqYC4HQhQMro937v9+Kb3/xmfO1rX4vnnnsuBg8eHFOmTInFixfHBz/4waLHAyiLurq6aG9v93NAADgmAVJGzc3N0dzcXPQYAOnq6uqira2t6DEAOA35DAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQRIGT3++ONx8803R2NjYwwaNChGjx4dzc3NsXnz5qJHAwCAQtQUPUB/9qUvfSna29tj5syZcfHFF0dnZ2csXrw4Jk6cGI899lg0NjYWPSIAAKQSIGX02c9+Ni655JKoqfnlMTc3N8f48ePj7rvvjr/5m78pcDoAAMgnQMpo6tSpR10bO3ZsvOtd74qNGzcWMBEAABTLZ0CSlUqleOaZZ2LYsGFFj0IF6urqirlz50ZjY2OMGzcuGhsbY+7cudHV1VX0aABAhfAKSLJly5bFrl274gtf+ELRo1Bh9uzZE01NTbFly5Zu1zds2BCrV6+O9vb2qKurK2g6AKBSeAUk0caNG+Omm26Kpqam+PjHP170OFSY22677aj4OGzLli2xYMGC5IkAgEokQJLs3r07rr322jjvvPNixYoVUVVVVfRIVJi1a9f26XEAgFPBW7ASvPDCC3H11VfHiy++GKtXr44RI0ac8Pnz58+PoUOHdrvW0tISLS0t5RyTfu7gwYN9ehwAKs3y5ctj+fLl3a7t3bu3oGn6DwFSZgcOHIjp06fHU089FatWrYp3vOMdb3rPokWLYuLEiQnTUUn+/7eD7s3jAFBpjvUXwB0dHTFp0qSCJuofvAWrjA4dOhTNzc2xZs2aeOCBB2LKlClFj0QFmzx5cp8eBwA4FfyVZxl99rOfjYcffjimT58ezz77bHznO9/p9vjs2bMLmoxK1NraGqtXrz7mB9EbGhqitbW1gKkAgEojQMropz/9aVRVVcXDDz8cDz/8cLfHqqqqBAip6urqor29PRYsWBBr166NgwcPRk1NTUyePDlaW1t9C14AIIUAKaNHHnmk6BGgm7q6umhrayt6DACggvkMCAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBAgAAJBGgAAAAGkECAAAkEaAAAAAaQQIAACQRoAAAABpBEgZvfzyy3HHHXfEVVddFW9961ujuro6li5dWvRYAABQGAFSRl1dXXHnnXfGk08+GRMmTIiIiKqqqoKnAgCA4giQMqqvr4/du3fH1q1b48tf/nLR4/Rry5cvL3qEM44z6x3n1nPOrHecW885s95xbmQTIGV09tlnx/DhwyMiolQqFTxN/+Zfnj3nzHrHufWcM+sd59Zzzqx3nBvZBMhpaMaMGTF37tzo6uoqehQAADilaooegKNt3bo1tm7dGqtXr4729vaoq6sreiQAADglvAJyGtuyZUssWLCg6DEAAOCU8QrIae7f//3fo6Ojo+gxTnt79+51Tj3kzHrHufWcM+sd59Zzzqx3nFvP/OxnPyt6hDNeVcmno1OsW7cuJk+eHN/+9rfjYx/72DGf09nZGfX19cmTAQDQE/X19bFu3boYOXJk0aOckbwCchoZOXJk7Nq1Kzo7O4seBQCA4xg5cqT46AMBcpqx0AAA9GcCpMwWL14ce/fujV27dkVExEMPPRQ7duyIiIhbbrklBg8eXOR4AACQymdAymzMmDGxffv2iIioqqqKiDd+KGFVVVVs3bo1zj///CLHAwCAVAIEAABI4+eAAAAAaQRIgldeeSVuu+22qK+vj7e85S3x3ve+N1atWnVS9+7duzduvPHGqKuri0GDBsUVV1wRP/nJT8o88emht+f27W9/O6qrq4/5a8+ePQmTF+Pll1+OO+64I6666qp461vfGtXV1bF06dKTvr9Sd60v51apu/b444/HzTffHI2NjTFo0KAYPXp0NDc3x+bNm0/q/krdtb6cW6Xu2hNPPBEzZ86MhoaGGDhwYNTW1kZTU1MsW7bspO6v1F3ry7lV6q4dy1133RXV1dUxfvz4k3p+pe5bb/gQeoI5c+bEgw8+GLfeemtceOGF0dbWFtdcc0088sgj8b73ve+4973++utx7bXXxn/+53/GggULora2Nv7qr/4qpk2bFuvXr4+xY8cmfhX5entuh915550xZsyYbteGDBlSrnEL19XVFXfeeWeMHj06JkyYEI8++uiRzx29mUretb6c22GVtmtf+tKXor29PWbOnBkXX3xxdHZ2xuLFi2PixInx2GOPRWNj43HvreRd68u5HVZpu7Zjx4546aWXYs6cOVFfXx/79++PFStWxEc/+tHYtm1bfP7znz/uvZW8a305t8Mqbdd+1c6dO+OLX/xiDBw48KT+m1DJ+9YrJcpqzZo1paqqqtKf//mfH7l24MCB0tixY0tNTU0nvPfv//7vS1VVVaUHH3zwyLWurq7SeeedV/r93//9ss18OujLubW1tZWqqqpK69evL/eYp5VXXnml9Mwzz5RKpVJp3bp1paqqqtLSpUtP6t5K3rW+nFul7tqPf/zj0muvvdbt2ubNm0vnnntuafbs2Se8t5J3rS/nVqm7diyHDh0qTZgwoXT++eef8HmVvGvHcrLnZtfe0NzcXPqt3/qt0rRp00q/+Zu/+abPt2894y1YZbZixYqoqamJG2+88ci1c845Jz75yU9Ge3t7PP300ye8d8SIEXHDDTccuTZs2LCYNWtW/MM//EO89tprZZ29SH05t8NKpVLs27cvDh06VM5RTxtnn312DB8+PCLe+Np7opJ3rS/ndlil7drUqVOjpqb7C+hjx46Nd73rXbFx48YT3lvJu9aXczus0nbtWKqrq2PUqFFx1llnnfB5lbxrx3Ky53ZYJe/aj370o3jwwQdj0aJFR75z6Zuxbz0jQMrsJz/5SVx00UUxaNCgbtcvueSSiIj4j//4jxPeO3HixKOuX3LJJbF///7YtGnTqR32NNKXczvs8ssvjyFDhsTAgQPj+uuvj6eeeqoss/YHlbxrp4Jde+MPK88880wMGzbshM+za92d7LkdVqm7tn///nj22Wdjy5Ytcc8998T3v//9WLBgwQnvsWu9O7fDKnXXDh06FPPmzYtPfepTJ/W2yMPsW8/4DEiZdXZ2HvMnmx++dvgHFB7v3mnTpp3w3p78n+NM0pdzGzhwYMydOzcuv/zyGDx4cKxbty6+8pWvRFNTU3R0dMSoUaPKNveZqpJ3rS/s2i8tW7Ysdu3aFV/4whdO+Dy71t3Jnlul79pnPvOZuO+++yIioqamJu69995ur5Afi13r3blV+q4tWbIkduzYET/84Q97dJ996xkBUma/+MUv4pxzzjnq+rnnnnvk8eM5cOBAr+890/Xl3GbOnBkzZ8488vvrrrsurrzyyrjsssvirrvuiq997WunfuAzXCXvWl/YtTds3LgxbrrppmhqaoqPf/zjJ3yuXfulnpxbpe/arbfeGrNmzYpdu3bFsmXL4uabb44BAwac8NzsWu/OrZJ37bnnnouFCxfGwoULo7a2tkf32reeESBlNmDAgHjllVeOun7gwIEjj5fj3jPdqf7a3/e+98WUKVNO+tsfV5pK3rVTrdJ2bffu3XHttdfGeeedFytWrHjT90rbtTf09NyOpZJ2bdy4cTFu3LiIiJg9e3ZceeWVMX/+/Jg1a9Zxd8au9e7cjqVSdu3222+PYcOGxbx583p8r33rGZ8BKbORI0ce8+1CnZ2dERFRX19flnvPdOX42keNGhXPP/98n2frjyp518qhUnbthRdeiKuvvjpefPHF+Jd/+ZcYMWLEm95j13p3bsdTKbv2qz7ykY/ECy+8EE8++eRxn2PXjnYy53Y8/X3XNm/eHN/4xjdi3rx5sXPnzti2bVts27YtDhw4EK+++mps3779hF+/fesZAVJm7373u2PTpk2xb9++btfXrFkTERETJkw47r0TJkyIjo6Oo74zz5o1a2LgwIFx0UUXnfqBTxN9Obfj+fnPfx51dXWnZL7+ppJ3rRwqYdcOHDgQ06dPj6eeeir+8R//Md7xjnec1H2Vvmu9PbfjqYRdO5bDb2eprj7+H2MqfdeO5WTO7Xj6+649/fTT8frrr8ctt9wSb3/724/8Wrt2bWzatCnGjBkTd95553Hvt289I0DKbMaMGXHo0KEjHwKLeOMnfLe1tcV73/veeNvb3hYRb7wcv3Hjxjh48GC3e5955pn47ne/e+Tas88+Gw888EBMnz79pL+V3pmoL+fW1dV11D/vn/7pn6KjoyOuuuqq8g9/mrNrvWPXfunQoUPR3Nwca9asiQceeCCmTJlyzOfZte76cm6VumvH+rrLggk3AAADF0lEQVRfe+21uP/++6O2tvbIh3o7Ozvt2v/Tl3Or1F0bP358rFy5Mr73ve8d+bVy5cpobGyM0aNHx/e+97345Cc/GRH27VSoKvX2G99z0pqbm2PlypVx6623RkNDQyxdujTWrVsX//Zv/xaXXnppRLzxU7/vv//+2LZtW5x//vkR8cZP1bz00kvjv//7v+Nzn/vckZ+quXPnznj88cfjwgsvLPLLKrventuFF14YEydOjEmTJsWQIUOio6MjvvWtb8Xb3va2ePzxx/v13+AsXrw49u7dG7t27YolS5bEDTfccOTVoltuuSUGDx5s146ht+dWqbs2f/78uPfee2P69OndPqx62OzZsyPCv9d+VV/OrVJ37cMf/nDs27cvLrvssqivr4/du3fHsmXLYtOmTdHW1hYf+9jHIsKu/aq+nFul7trxTJs2LZ577rn4r//6ryPX7NspkP+zDyvPgQMHSp/73OdKI0eOLJ177rmlKVOmlH7wgx90e86cOXNK1dXVpe3bt3e7/vzzz5f+4A/+oDRs2LDSwIEDS5dffnnF/HTS3p7b7bffXnr3u99dGjp0aOnss88uXXDBBaWbbrqptGfPnuwvId0FF1xQqqqqKlVVVZWqq6tL1dXVR/734TOya0fr7blV6q5NmzbtyBn96q/q6uojz7Nr3fXl3Cp11/7u7/6u9Nu//dulESNGlM4666xSbW1t6ZprrimtWrWq2/PsWnd9ObdK3bXjmTZtWmn8+PHdrtm3vvMKCAAAkMZnQAAAgDQCBAAASCNAAACANAIEAABII0AAAIA0AgQAAEgjQAAAgDQCBAAASCNAAACANAIEAABII0AAAIA0AgQAAEgjQAAAgDQCBAAASCNAAACANAIEAABII0AAAIA0AgQAAEgjQAAAgDQCBAAASCNAAACANAIEAABII0AAAIA0AgQAAEgjQAAAgDQCBAAASCNAAACANAIEAABII0AAAIA0AgQAAEgjQAAAgDQCBAAASCNAAACANAIEAABII0AAAIA0AgQAAEgjQAAAgDQCBAAASCNAAACANP8H3KyZU9NTlqcAAAAASUVORK5CYII="; },
-              thumbnail_uri: function() { return "data:image/png;charset=utf8;filename=testmodel.fig2.png.png;base64,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"; }
-            }
-          
-        
-      };
-    </script>
+    if (typeof type === 'function') {
+      return type.displayName || type.name || null;
+    }
 
-    <script>
-      var categories = {
-        "f97e9da0e3b879f0a9df979ae260a5f7e1371edb127c1862d4f861981166cdc1": {
-          "f97e9da0e3b879f0a9df979ae260a5f7e1371edb127c1862d4f861981166cdc1": [
-            "testdir/1.txt",
-            "testdir/2.txt",
-            "testdir/3.txt",
-            "test.csv"
-          ]
-        },
-        "25a8d45469d1048cbe3a77607bf15ac12b02c4575823590df089ad8e7dcdd36d": {
-          "f97e9da0e3b879f0a9df979ae260a5f7e1371edb127c1862d4f861981166cdc1": [
-            "fig1.svg"
-          ]
-        },
-        "649474af418cac5d8a42bd349856090ecd177c6cf970fbc0ca59b91ee20ff1d0": {
-          "5f4dfa7204c97f0860300388c407e03ce73973c32c8006cb235c809832589fe6": [
-            "testmodel.fig2.png"
-          ]
-        }
-      };
-
-      function show_rule_properties(rule) {
-        $(`.rule-properties[data-rule=${rule}]`).modal("show");
-      }
-
-      function download_result(path) {
-        var res = results[path];
-        saveAs(res.data_uri(), res.name);
-      }
-
-      function show_thumbnail(path) {
-        var res = results[path];
-        var modal = $("#thumbnail-modal");
-
-        modal.find(".modal-title").text(res.name);
-        modal.find(".modal-body img").attr("src", res.thumbnail_uri());
-        modal.find(".modal-footer a.btn-download")
-          .attr(
-            "href", 
-            `javascript:download_result("${res.path}")`
-          )
-          .attr("download", res.name);
-        modal.modal('handleUpdate');
-        modal.modal("show");
-      }
-
-      function show_category(panel) {
-        panel.find(".results-table").each(function() {
-          var table = $(this);
-          
-          // stop if this is already a datatable
-          if ($.fn.DataTable.isDataTable(table)) {
-            return;
-          }
+    if (typeof type === 'string') {
+      return type;
+    }
 
-          var cat = table.data("category");
-          var subcat = table.data("subcategory");
+    switch (type) {
+      case exports.Fragment:
+        return 'Fragment';
 
-          $(this).DataTable({
-            data: categories[cat][subcat].map(res => results[res]),
-            bAutoWidth: false,
-            columns: [
-              {
-                title: "File",
-                render: function(data, type, row) {
-                  var link = $("<a>", {
-                    download: row.name,
-                    href: `javascript:download_result("${row.path}")`
-                  }).text(row.name)
-                  return link.wrap("<span>").parent().html();
-                }
-              },
-              {
-                title: "Description",
-                render: function(data, type, row) {
-                  return row.caption;
-                }
-              },
-              {
-                title: "Job properties",
-                render: function(data, type, row) {
-                  if (type === 'display'){
-                    var desc = $("<dl>", { class: "row" });
-                    desc.append($("<dt>", { class: "col-sm-3" }).text("Rule"))
-                      .append(
-                        $(
-                          "<dd>", { class:"col-sm-9" })
-                            .append($("<a>", {href: `javascript:show_rule_properties("${row.job_properties.rule}")`})
-                            .text(row.job_properties.rule)
-                        )
-                      )
-                      .append($("<dt>", { class: "col-sm-3" }).text("Wildcards"))
-                      .append($("<dd>", { class: "col-sm-9" }).text(row.job_properties.wildcards || "-"))
-                      .append($("<dt>", { class: "col-sm-3" }).text("Parameters"))
-                      .append($("<dd>", { class: "col-sm-9" }).append($("<pre>").text(row.job_properties.params || "-")));
-                    return desc.wrap("<span>").parent().html();
-                  } else {
-                    return row.job_properties.rule;
-                  }
-                }
-              },
-              {
-                title: "Thumbnail",
-                sortable: false,
-                render: function(data, type, row) {
-                  if (type === 'display'){
-                    var thumbnail_uri = row.thumbnail_uri()
-                    if (thumbnail_uri) {
-                      var link = $("<a>", {
-                        href: `javascript:show_thumbnail("${row.path}")`
-                      }).append($("<img>", {
-                        src: thumbnail_uri,
-                        width: 200
-                      }));
-                      return link.wrap("<span>").parent().html();
-                    } else {
-                      return "";
-                    }
-                  } else {
-                    return "";
-                  }
-                }
-              },
-            ]
-          })
-        });
-      }
+      case REACT_PORTAL_TYPE:
+        return 'Portal';
 
-      function show_panel(id) {
-        $(".panel").hide();
-        var loading_screen = $("#panel-loading-screen");
-        loading_screen.show();
-        var panel = $(`#${id}`);
-        if (panel.hasClass("category")) {
-          show_category(panel);
-        }
-        loading_screen.hide();
-        panel.show();
-      }
+      case exports.Profiler:
+        return 'Profiler';
 
-      var rulegraph_spec = {
-        "$schema": "https://vega.github.io/schema/vega/v5.json",
-        "width": 363.0,
-        "height": 182.0,
-        "padding": 0,
-        "autosize": "none",
+      case exports.StrictMode:
+        return 'StrictMode';
 
-        "signals": [
-          { "name": "cx", "update": "width / 2" },
-          { "name": "cy", "update": "height / 2" }
-        ],
+      case exports.Suspense:
+        return 'Suspense';
 
-        "data": [
-          {
-            "name": "node-data",
-            "values": [{'rule': 'a', 'fx': 27.0, 'fy': 90.0}, {'rule': 'all', 'fx': 135.0, 'fy': 162.0}, {'rule': 'b', 'fx': 99.0, 'fy': 90.0}, {'rule': 'c', 'fx': 63.0, 'fy': 18.0}, {'rule': 'd', 'fx': 171.0, 'fy': 90.0}, {'rule': 'e', 'fx': 243.0, 'fy': 90.0}]
-          },
-          {
-            "name": "link-data",
-            "values": [{'target': 0, 'source': 1, 'value': 1}, {'target': 2, 'source': 1, 'value': 1}, {'target': 3, 'source': 0, 'value': 1}, {'target': 3, 'source': 2, 'value': 1}, {'target': 4, 'source': 1, 'value': 1}, {'target': 5, 'source': 1, 'value': 1}]
-          }
-        ],
+      case REACT_SUSPENSE_LIST_TYPE:
+        return 'SuspenseList';
+    }
 
-        "scales": [
-          {
-            "name": "color",
-            "type": "ordinal",
-            "range": {"scheme": "category20c"}
-          },
-          {
-            "name": "x",
-            "type": "linear"
-          },
-          {
-            "name": "y",
-            "type": "linear"
-          }
-        ],
+    if (typeof type === 'object') {
+      switch (type.$$typeof) {
+        case REACT_CONTEXT_TYPE:
+          var context = type;
+          return getContextName(context) + '.Consumer';
 
-        "marks": [
-          {
-            "name": "nodes",
-            "type": "symbol",
-            "zindex": 1,
-            "from": {"data": "node-data"},
-            "encode": {
-              "enter": {
-                "fill": {"scale": "color", "field": "rule"},
-                "x": {"field": "fx", "scale": "x"},
-                "y": {"field": "fy", "scale": "y"},
-                "tooltip": { "value": "Click to show rule details." }
-              },
-              "update": {
-                "size": {"value": 100}
-              },
-              "hover": {
-                "size": {"value": 200}
-              }
-            },
+        case REACT_PROVIDER_TYPE:
+          var provider = type;
+          return getContextName(provider._context) + '.Provider';
 
-            "transform": [
-              {
-                "type": "force",
-                "iterations": 1,
-                "static": true,
-                "forces": [
-                  {
-                    "force": "link",
-                    "links": "link-data",
-                    "distance": 25
-                  }
-                ]
-              }
-            ]
-          },
+        case REACT_FORWARD_REF_TYPE:
+          return getWrappedName(type, type.render, 'ForwardRef');
+
+        case REACT_MEMO_TYPE:
+          return getComponentName(type.type);
+
+        case REACT_BLOCK_TYPE:
+          return getComponentName(type._render);
+
+        case REACT_LAZY_TYPE:
           {
-            "name": "labels",
-            "type": "text",
-            "zindex": 2,
-            "from": {"data": "node-data"},
-            "encode": {
-              "enter": {
-                "fill": {"value": "black"},
-                "fontWeight": {"value": "normal"},
-                "text": {"field": "rule"},
-                "x": {"field": "fx", "scale": "x"},
-                "y": {"field": "fy", "scale": "y"},
-                "dx": {"value": 5},
-                "dy": {"value": -5},
-              }
+            var lazyComponent = type;
+            var payload = lazyComponent._payload;
+            var init = lazyComponent._init;
+
+            try {
+              return getComponentName(init(payload));
+            } catch (x) {
+              return null;
             }
-          },
-          {
-            "type": "path",
-            "from": {"data": "link-data"},
-            "interactive": false,
-            "encode": {
-              "update": {
-                "stroke": {"value": "#ccc"},
-                "strokeWidth": {"value": 0.5}
-              }
-            },
-            "transform": [
-              {
-                "type": "linkpath", "shape": "diagonal",
-                "sourceX": "datum.source.x", "sourceY": "datum.source.y",
-                "targetX": "datum.target.x", "targetY": "datum.target.y"
-              }
-            ]
-          }
-        ]
-      };
-      vegaEmbed("#rulegraph", rulegraph_spec).then(function(ret) {
-        ret.view.addEventListener("click", function(event, item) {
-          if(item && "rule" in item.datum) {
-            var rule = item.datum.rule;
-            show_rule_properties(rule);
           }
-        });
-      });
+      }
+    }
 
+    return null;
+  }
 
-      
+  var hasOwnProperty$1 = Object.prototype.hasOwnProperty;
+  var RESERVED_PROPS = {
+    key: true,
+    ref: true,
+    __self: true,
+    __source: true
+  };
+  var specialPropKeyWarningShown, specialPropRefWarningShown, didWarnAboutStringRefs;
 
-      var runtimes_spec = {
-        "$schema": "https://vega.github.io/schema/vega-lite/v3.json",
-        "description": "Runtimes of jobs.",
-        "data": {"values": [{'rule': 'a', 'runtime': 2.0280115604400635}, {'rule': 'c', 'runtime': 3.028017282485962}, {'rule': 'c', 'runtime': 3.020017147064209}, {'rule': 'c', 'runtime': 2.0160114765167236}, {'rule': 'c', 'runtime': 3.016017198562622}, {'rule': 'c', 'runtime': 1.0240058898925781}, {'rule': 'c', 'runtime': 3.016016960144043}, {'rule': 'c', 'runtime': 1.0160057544708252}, {'rule': 'c', 'runtime': 2.0120115280151367}, {'rule': 'c', 'runtime': 3.024017095565796}, {'rule': 'c', 'runtime': 1.0160057544708252}, {'rule': 'd', 'runtime': 1.0520060062408447}, {'rule': 'e', 'runtime': 0.012000083923339844}]},
-        "mark": "point",
-        "encoding": {
-          "x": {"field": "runtime", "type": "quantitative",
-                "axis": {"title": "runtime [s]", "labelAngle": -90},
-                "scale": {"type": "log"}
-          },
-          "y": {"field": "rule", "type": "nominal"},
-          "color": {"value": "#007bff"}
+  {
+    didWarnAboutStringRefs = {};
+  }
+
+  function hasValidRef(config) {
+    {
+      if (hasOwnProperty$1.call(config, 'ref')) {
+        var getter = Object.getOwnPropertyDescriptor(config, 'ref').get;
+
+        if (getter && getter.isReactWarning) {
+          return false;
         }
-      };
-      vegaEmbed("#runtimes", runtimes_spec);
+      }
+    }
 
-      var timeline_spec = {
-        "$schema": "https://vega.github.io/schema/vega-lite/v3.json",
-        "description": "Timeline of jobs.",
-        "data": {
-          "values": [{'rule': 'a', 'starttime': '2020-03-27T14:58:42.460061', 'endtime': '2020-03-27T14:58:44.488072'}, {'rule': 'c', 'starttime': '2020-03-27T14:58:39.404043', 'endtime': '2020-03-27T14:58:42.432060'}, {'rule': 'c', 'starttime': '2020-03-27T14:58:38.368037', 'endtime': '2020-03-27T14:58:41.388055'}, {'rule': 'c', 'starttime': '2020-03-27T14:58:38.384037', 'endtime': '2020-03-27T14:58:40.400049'}, {'rule': 'c', 'starttime': '2020-03-27T14:58:38.352037', 'endtime': '2020-03-27T14:58:41.368054'}, {'rule': 'c', 'starttime': '2020-03-27T14:58:39.356043', 'endtime': '2020-03-27T14:58:40.380049'}, {'rule': 'c', 'starttime': '2020-03-27T14:58:38.344037', 'endtime': '2020-03-27T14:58:41.360054'}, {'rule': 'c', 'starttime': '2020-03-27T14:58:38.332037', 'endtime': '2020-03-27T14:58:39.348043'}, {'rule': 'c', 'starttime': '2020-03-27T14:58:38.340037', 'endtime': '2020-03-27T14:58:40.352049'}, {'rule': 'c', 'starttime': '2020-03-27T14:58:39.424043', 'endtime': '2020-03-27T14:58:42.448061'}, {'rule': 'c', 'starttime': '2020-03-27T14:58:38.376037', 'endtime': '2020-03-27T14:58:39.392043'}, {'rule': 'd', 'starttime': '2020-03-27T14:58:38.360037', 'endtime': '2020-03-27T14:58:39.412043'}, {'rule': 'e', 'starttime': '2020-03-27T14:58:38.356037', 'endtime': '2020-03-27T14:58:38.368037'}]
-        },
-        "mark": "point",
-        "encoding": {
-          "x": {
-            "field": "endtime", "type": "temporal",
-            "timeUnit": "yearmonthdatehoursminutes",
-            "axis": {
-              "labelAngle": -90,
-              "title": "creation date"
-            }
-          },
-          "y": {"field": "rule", "type": "nominal"},
-          "color": {"value": "#007bff"}
+    return config.ref !== undefined;
+  }
+
+  function hasValidKey(config) {
+    {
+      if (hasOwnProperty$1.call(config, 'key')) {
+        var getter = Object.getOwnPropertyDescriptor(config, 'key').get;
+
+        if (getter && getter.isReactWarning) {
+          return false;
         }
-      };
-      vegaEmbed("#timeline", timeline_spec);
+      }
+    }
 
-      $(".vega-actions a").addClass("btn btn-outline-secondary");
-      $(".vega-actions").addClass("btn-group");
-      
-      $("a.panel-link").click(function() {
-        $("a.nav-link.active").removeClass("active");
-        $(this).addClass("active");
-        var panelid = $(this).attr("data-panel");
-        show_panel(panelid);
-      })
+    return config.key !== undefined;
+  }
+
+  function defineKeyPropWarningGetter(props, displayName) {
+    var warnAboutAccessingKey = function () {
+      {
+        if (!specialPropKeyWarningShown) {
+          specialPropKeyWarningShown = true;
+
+          error('%s: `key` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://reactjs.org/link/special-props)', displayName);
+        }
+      }
+    };
+
+    warnAboutAccessingKey.isReactWarning = true;
+    Object.defineProperty(props, 'key', {
+      get: warnAboutAccessingKey,
+      configurable: true
+    });
+  }
+
+  function defineRefPropWarningGetter(props, displayName) {
+    var warnAboutAccessingRef = function () {
+      {
+        if (!specialPropRefWarningShown) {
+          specialPropRefWarningShown = true;
+
+          error('%s: `ref` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://reactjs.org/link/special-props)', displayName);
+        }
+      }
+    };
+
+    warnAboutAccessingRef.isReactWarning = true;
+    Object.defineProperty(props, 'ref', {
+      get: warnAboutAccessingRef,
+      configurable: true
+    });
+  }
+
+  function warnIfStringRefCannotBeAutoConverted(config) {
+    {
+      if (typeof config.ref === 'string' && ReactCurrentOwner.current && config.__self && ReactCurrentOwner.current.stateNode !== config.__self) {
+        var componentName = getComponentName(ReactCurrentOwner.current.type);
+
+        if (!didWarnAboutStringRefs[componentName]) {
+          error('Component "%s" contains the string ref "%s". ' + 'Support for string refs will be removed in a future major release. ' + 'This case cannot be automatically converted to an arrow function. ' + 'We ask you to manually fix this case by using useRef() or createRef() instead. ' + 'Learn more about using refs safely here: ' + 'https://reactjs.org/link/strict-mode-string-ref', componentName, config.ref);
+
+          didWarnAboutStringRefs[componentName] = true;
+        }
+      }
+    }
+  }
+  /**
+   * Factory method to create a new React element. This no longer adheres to
+   * the class pattern, so do not use new to call it. Also, instanceof check
+   * will not work. Instead test $$typeof field against Symbol.for('react.element') to check
+   * if something is a React Element.
+   *
+   * @param {*} type
+   * @param {*} props
+   * @param {*} key
+   * @param {string|object} ref
+   * @param {*} owner
+   * @param {*} self A *temporary* helper to detect places where `this` is
+   * different from the `owner` when React.createElement is called, so that we
+   * can warn. We want to get rid of owner and replace string `ref`s with arrow
+   * functions, and as long as `this` and owner are the same, there will be no
+   * change in behavior.
+   * @param {*} source An annotation object (added by a transpiler or otherwise)
+   * indicating filename, line number, and/or other information.
+   * @internal
+   */
+
+
+  var ReactElement = function (type, key, ref, self, source, owner, props) {
+    var element = {
+      // This tag allows us to uniquely identify this as a React Element
+      $$typeof: REACT_ELEMENT_TYPE,
+      // Built-in properties that belong on the element
+      type: type,
+      key: key,
+      ref: ref,
+      props: props,
+      // Record the component responsible for creating this element.
+      _owner: owner
+    };
+
+    {
+      // The validation flag is currently mutative. We put it on
+      // an external backing store so that we can freeze the whole object.
+      // This can be replaced with a WeakMap once they are implemented in
+      // commonly used development environments.
+      element._store = {}; // To make comparing ReactElements easier for testing purposes, we make
+      // the validation flag non-enumerable (where possible, which should
+      // include every environment we run tests in), so the test framework
+      // ignores it.
+
+      Object.defineProperty(element._store, 'validated', {
+        configurable: false,
+        enumerable: false,
+        writable: true,
+        value: false
+      }); // self and source are DEV only properties.
+
+      Object.defineProperty(element, '_self', {
+        configurable: false,
+        enumerable: false,
+        writable: false,
+        value: self
+      }); // Two elements created in two different places should be considered
+      // equal for testing purposes and therefore we hide it from enumeration.
+
+      Object.defineProperty(element, '_source', {
+        configurable: false,
+        enumerable: false,
+        writable: false,
+        value: source
+      });
+
+      if (Object.freeze) {
+        Object.freeze(element.props);
+        Object.freeze(element);
+      }
+    }
+
+    return element;
+  };
+  /**
+   * Create and return a new ReactElement of the given type.
+   * See https://reactjs.org/docs/react-api.html#createelement
+   */
+
+  function createElement(type, config, children) {
+    var propName; // Reserved names are extracted
+
+    var props = {};
+    var key = null;
+    var ref = null;
+    var self = null;
+    var source = null;
+
+    if (config != null) {
+      if (hasValidRef(config)) {
+        ref = config.ref;
+
+        {
+          warnIfStringRefCannotBeAutoConverted(config);
+        }
+      }
+
+      if (hasValidKey(config)) {
+        key = '' + config.key;
+      }
+
+      self = config.__self === undefined ? null : config.__self;
+      source = config.__source === undefined ? null : config.__source; // Remaining properties are added to a new props object
+
+      for (propName in config) {
+        if (hasOwnProperty$1.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
+          props[propName] = config[propName];
+        }
+      }
+    } // Children can be more than one argument, and those are transferred onto
+    // the newly allocated props object.
+
+
+    var childrenLength = arguments.length - 2;
+
+    if (childrenLength === 1) {
+      props.children = children;
+    } else if (childrenLength > 1) {
+      var childArray = Array(childrenLength);
+
+      for (var i = 0; i < childrenLength; i++) {
+        childArray[i] = arguments[i + 2];
+      }
+
+      {
+        if (Object.freeze) {
+          Object.freeze(childArray);
+        }
+      }
+
+      props.children = childArray;
+    } // Resolve default props
+
+
+    if (type && type.defaultProps) {
+      var defaultProps = type.defaultProps;
+
+      for (propName in defaultProps) {
+        if (props[propName] === undefined) {
+          props[propName] = defaultProps[propName];
+        }
+      }
+    }
+
+    {
+      if (key || ref) {
+        var displayName = typeof type === 'function' ? type.displayName || type.name || 'Unknown' : type;
+
+        if (key) {
+          defineKeyPropWarningGetter(props, displayName);
+        }
+
+        if (ref) {
+          defineRefPropWarningGetter(props, displayName);
+        }
+      }
+    }
+
+    return ReactElement(type, key, ref, self, source, ReactCurrentOwner.current, props);
+  }
+  function cloneAndReplaceKey(oldElement, newKey) {
+    var newElement = ReactElement(oldElement.type, newKey, oldElement.ref, oldElement._self, oldElement._source, oldElement._owner, oldElement.props);
+    return newElement;
+  }
+  /**
+   * Clone and return a new ReactElement using element as the starting point.
+   * See https://reactjs.org/docs/react-api.html#cloneelement
+   */
+
+  function cloneElement(element, config, children) {
+    if (!!(element === null || element === undefined)) {
+      {
+        throw Error( "React.cloneElement(...): The argument must be a React element, but you passed " + element + "." );
+      }
+    }
+
+    var propName; // Original props are copied
+
+    var props = assign({}, element.props); // Reserved names are extracted
+
+
+    var key = element.key;
+    var ref = element.ref; // Self is preserved since the owner is preserved.
+
+    var self = element._self; // Source is preserved since cloneElement is unlikely to be targeted by a
+    // transpiler, and the original source is probably a better indicator of the
+    // true owner.
+
+    var source = element._source; // Owner will be preserved, unless ref is overridden
+
+    var owner = element._owner;
+
+    if (config != null) {
+      if (hasValidRef(config)) {
+        // Silently steal the ref from the parent.
+        ref = config.ref;
+        owner = ReactCurrentOwner.current;
+      }
+
+      if (hasValidKey(config)) {
+        key = '' + config.key;
+      } // Remaining properties override existing props
+
+
+      var defaultProps;
+
+      if (element.type && element.type.defaultProps) {
+        defaultProps = element.type.defaultProps;
+      }
+
+      for (propName in config) {
+        if (hasOwnProperty$1.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
+          if (config[propName] === undefined && defaultProps !== undefined) {
+            // Resolve default props
+            props[propName] = defaultProps[propName];
+          } else {
+            props[propName] = config[propName];
+          }
+        }
+      }
+    } // Children can be more than one argument, and those are transferred onto
+    // the newly allocated props object.
+
+
+    var childrenLength = arguments.length - 2;
+
+    if (childrenLength === 1) {
+      props.children = children;
+    } else if (childrenLength > 1) {
+      var childArray = Array(childrenLength);
+
+      for (var i = 0; i < childrenLength; i++) {
+        childArray[i] = arguments[i + 2];
+      }
+
+      props.children = childArray;
+    }
+
+    return ReactElement(element.type, key, ref, self, source, owner, props);
+  }
+  /**
+   * Verifies the object is a ReactElement.
+   * See https://reactjs.org/docs/react-api.html#isvalidelement
+   * @param {?object} object
+   * @return {boolean} True if `object` is a ReactElement.
+   * @final
+   */
+
+  function isValidElement(object) {
+    return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE;
+  }
+
+  var SEPARATOR = '.';
+  var SUBSEPARATOR = ':';
+  /**
+   * Escape and wrap key so it is safe to use as a reactid
+   *
+   * @param {string} key to be escaped.
+   * @return {string} the escaped key.
+   */
+
+  function escape(key) {
+    var escapeRegex = /[=:]/g;
+    var escaperLookup = {
+      '=': '=0',
+      ':': '=2'
+    };
+    var escapedString = key.replace(escapeRegex, function (match) {
+      return escaperLookup[match];
+    });
+    return '$' + escapedString;
+  }
+  /**
+   * TODO: Test that a single child and an array with one item have the same key
+   * pattern.
+   */
+
+
+  var didWarnAboutMaps = false;
+  var userProvidedKeyEscapeRegex = /\/+/g;
+
+  function escapeUserProvidedKey(text) {
+    return text.replace(userProvidedKeyEscapeRegex, '$&/');
+  }
+  /**
+   * Generate a key string that identifies a element within a set.
+   *
+   * @param {*} element A element that could contain a manual key.
+   * @param {number} index Index that is used if a manual key is not provided.
+   * @return {string}
+   */
+
+
+  function getElementKey(element, index) {
+    // Do some typechecking here since we call this blindly. We want to ensure
+    // that we don't block potential future ES APIs.
+    if (typeof element === 'object' && element !== null && element.key != null) {
+      // Explicit key
+      return escape('' + element.key);
+    } // Implicit key determined by the index in the set
+
+
+    return index.toString(36);
+  }
+
+  function mapIntoArray(children, array, escapedPrefix, nameSoFar, callback) {
+    var type = typeof children;
+
+    if (type === 'undefined' || type === 'boolean') {
+      // All of the above are perceived as null.
+      children = null;
+    }
+
+    var invokeCallback = false;
+
+    if (children === null) {
+      invokeCallback = true;
+    } else {
+      switch (type) {
+        case 'string':
+        case 'number':
+          invokeCallback = true;
+          break;
+
+        case 'object':
+          switch (children.$$typeof) {
+            case REACT_ELEMENT_TYPE:
+            case REACT_PORTAL_TYPE:
+              invokeCallback = true;
+          }
+
+      }
+    }
+
+    if (invokeCallback) {
+      var _child = children;
+      var mappedChild = callback(_child); // If it's the only child, treat the name as if it was wrapped in an array
+      // so that it's consistent if the number of children grows:
+
+      var childKey = nameSoFar === '' ? SEPARATOR + getElementKey(_child, 0) : nameSoFar;
+
+      if (Array.isArray(mappedChild)) {
+        var escapedChildKey = '';
+
+        if (childKey != null) {
+          escapedChildKey = escapeUserProvidedKey(childKey) + '/';
+        }
+
+        mapIntoArray(mappedChild, array, escapedChildKey, '', function (c) {
+          return c;
+        });
+      } else if (mappedChild != null) {
+        if (isValidElement(mappedChild)) {
+          mappedChild = cloneAndReplaceKey(mappedChild, // Keep both the (mapped) and old keys if they differ, just as
+          // traverseAllChildren used to do for objects as children
+          escapedPrefix + ( // $FlowFixMe Flow incorrectly thinks React.Portal doesn't have a key
+          mappedChild.key && (!_child || _child.key !== mappedChild.key) ? // $FlowFixMe Flow incorrectly thinks existing element's key can be a number
+          escapeUserProvidedKey('' + mappedChild.key) + '/' : '') + childKey);
+        }
+
+        array.push(mappedChild);
+      }
+
+      return 1;
+    }
+
+    var child;
+    var nextName;
+    var subtreeCount = 0; // Count of children found in the current subtree.
+
+    var nextNamePrefix = nameSoFar === '' ? SEPARATOR : nameSoFar + SUBSEPARATOR;
+
+    if (Array.isArray(children)) {
+      for (var i = 0; i < children.length; i++) {
+        child = children[i];
+        nextName = nextNamePrefix + getElementKey(child, i);
+        subtreeCount += mapIntoArray(child, array, escapedPrefix, nextName, callback);
+      }
+    } else {
+      var iteratorFn = getIteratorFn(children);
+
+      if (typeof iteratorFn === 'function') {
+        var iterableChildren = children;
+
+        {
+          // Warn about using Maps as children
+          if (iteratorFn === iterableChildren.entries) {
+            if (!didWarnAboutMaps) {
+              warn('Using Maps as children is not supported. ' + 'Use an array of keyed ReactElements instead.');
+            }
+
+            didWarnAboutMaps = true;
+          }
+        }
+
+        var iterator = iteratorFn.call(iterableChildren);
+        var step;
+        var ii = 0;
+
+        while (!(step = iterator.next()).done) {
+          child = step.value;
+          nextName = nextNamePrefix + getElementKey(child, ii++);
+          subtreeCount += mapIntoArray(child, array, escapedPrefix, nextName, callback);
+        }
+      } else if (type === 'object') {
+        var childrenString = '' + children;
+
+        {
+          {
+            throw Error( "Objects are not valid as a React child (found: " + (childrenString === '[object Object]' ? 'object with keys {' + Object.keys(children).join(', ') + '}' : childrenString) + "). If you meant to render a collection of children, use an array instead." );
+          }
+        }
+      }
+    }
+
+    return subtreeCount;
+  }
+
+  /**
+   * Maps children that are typically specified as `props.children`.
+   *
+   * See https://reactjs.org/docs/react-api.html#reactchildrenmap
+   *
+   * The provided mapFunction(child, index) will be called for each
+   * leaf child.
+   *
+   * @param {?*} children Children tree container.
+   * @param {function(*, int)} func The map function.
+   * @param {*} context Context for mapFunction.
+   * @return {object} Object containing the ordered map of results.
+   */
+  function mapChildren(children, func, context) {
+    if (children == null) {
+      return children;
+    }
+
+    var result = [];
+    var count = 0;
+    mapIntoArray(children, result, '', '', function (child) {
+      return func.call(context, child, count++);
+    });
+    return result;
+  }
+  /**
+   * Count the number of children that are typically specified as
+   * `props.children`.
+   *
+   * See https://reactjs.org/docs/react-api.html#reactchildrencount
+   *
+   * @param {?*} children Children tree container.
+   * @return {number} The number of children.
+   */
+
+
+  function countChildren(children) {
+    var n = 0;
+    mapChildren(children, function () {
+      n++; // Don't return anything
+    });
+    return n;
+  }
+
+  /**
+   * Iterates through children that are typically specified as `props.children`.
+   *
+   * See https://reactjs.org/docs/react-api.html#reactchildrenforeach
+   *
+   * The provided forEachFunc(child, index) will be called for each
+   * leaf child.
+   *
+   * @param {?*} children Children tree container.
+   * @param {function(*, int)} forEachFunc
+   * @param {*} forEachContext Context for forEachContext.
+   */
+  function forEachChildren(children, forEachFunc, forEachContext) {
+    mapChildren(children, function () {
+      forEachFunc.apply(this, arguments); // Don't return anything.
+    }, forEachContext);
+  }
+  /**
+   * Flatten a children object (typically specified as `props.children`) and
+   * return an array with appropriately re-keyed children.
+   *
+   * See https://reactjs.org/docs/react-api.html#reactchildrentoarray
+   */
+
+
+  function toArray(children) {
+    return mapChildren(children, function (child) {
+      return child;
+    }) || [];
+  }
+  /**
+   * Returns the first child in a collection of children and verifies that there
+   * is only one child in the collection.
+   *
+   * See https://reactjs.org/docs/react-api.html#reactchildrenonly
+   *
+   * The current implementation of this function assumes that a single child gets
+   * passed without a wrapper, but the purpose of this helper function is to
+   * abstract away the particular structure of children.
+   *
+   * @param {?object} children Child collection structure.
+   * @return {ReactElement} The first and only `ReactElement` contained in the
+   * structure.
+   */
+
+
+  function onlyChild(children) {
+    if (!isValidElement(children)) {
+      {
+        throw Error( "React.Children.only expected to receive a single React element child." );
+      }
+    }
+
+    return children;
+  }
+
+  function createContext(defaultValue, calculateChangedBits) {
+    if (calculateChangedBits === undefined) {
+      calculateChangedBits = null;
+    } else {
+      {
+        if (calculateChangedBits !== null && typeof calculateChangedBits !== 'function') {
+          error('createContext: Expected the optional second argument to be a ' + 'function. Instead received: %s', calculateChangedBits);
+        }
+      }
+    }
+
+    var context = {
+      $$typeof: REACT_CONTEXT_TYPE,
+      _calculateChangedBits: calculateChangedBits,
+      // As a workaround to support multiple concurrent renderers, we categorize
+      // some renderers as primary and others as secondary. We only expect
+      // there to be two concurrent renderers at most: React Native (primary) and
+      // Fabric (secondary); React DOM (primary) and React ART (secondary).
+      // Secondary renderers store their context values on separate fields.
+      _currentValue: defaultValue,
+      _currentValue2: defaultValue,
+      // Used to track how many concurrent renderers this context currently
+      // supports within in a single renderer. Such as parallel server rendering.
+      _threadCount: 0,
+      // These are circular
+      Provider: null,
+      Consumer: null
+    };
+    context.Provider = {
+      $$typeof: REACT_PROVIDER_TYPE,
+      _context: context
+    };
+    var hasWarnedAboutUsingNestedContextConsumers = false;
+    var hasWarnedAboutUsingConsumerProvider = false;
+    var hasWarnedAboutDisplayNameOnConsumer = false;
+
+    {
+      // A separate object, but proxies back to the original context object for
+      // backwards compatibility. It has a different $$typeof, so we can properly
+      // warn for the incorrect usage of Context as a Consumer.
+      var Consumer = {
+        $$typeof: REACT_CONTEXT_TYPE,
+        _context: context,
+        _calculateChangedBits: context._calculateChangedBits
+      }; // $FlowFixMe: Flow complains about not setting a value, which is intentional here
+
+      Object.defineProperties(Consumer, {
+        Provider: {
+          get: function () {
+            if (!hasWarnedAboutUsingConsumerProvider) {
+              hasWarnedAboutUsingConsumerProvider = true;
+
+              error('Rendering <Context.Consumer.Provider> is not supported and will be removed in ' + 'a future major release. Did you mean to render <Context.Provider> instead?');
+            }
+
+            return context.Provider;
+          },
+          set: function (_Provider) {
+            context.Provider = _Provider;
+          }
+        },
+        _currentValue: {
+          get: function () {
+            return context._currentValue;
+          },
+          set: function (_currentValue) {
+            context._currentValue = _currentValue;
+          }
+        },
+        _currentValue2: {
+          get: function () {
+            return context._currentValue2;
+          },
+          set: function (_currentValue2) {
+            context._currentValue2 = _currentValue2;
+          }
+        },
+        _threadCount: {
+          get: function () {
+            return context._threadCount;
+          },
+          set: function (_threadCount) {
+            context._threadCount = _threadCount;
+          }
+        },
+        Consumer: {
+          get: function () {
+            if (!hasWarnedAboutUsingNestedContextConsumers) {
+              hasWarnedAboutUsingNestedContextConsumers = true;
+
+              error('Rendering <Context.Consumer.Consumer> is not supported and will be removed in ' + 'a future major release. Did you mean to render <Context.Consumer> instead?');
+            }
+
+            return context.Consumer;
+          }
+        },
+        displayName: {
+          get: function () {
+            return context.displayName;
+          },
+          set: function (displayName) {
+            if (!hasWarnedAboutDisplayNameOnConsumer) {
+              warn('Setting `displayName` on Context.Consumer has no effect. ' + "You should set it directly on the context with Context.displayName = '%s'.", displayName);
+
+              hasWarnedAboutDisplayNameOnConsumer = true;
+            }
+          }
+        }
+      }); // $FlowFixMe: Flow complains about missing properties because it doesn't understand defineProperty
+
+      context.Consumer = Consumer;
+    }
+
+    {
+      context._currentRenderer = null;
+      context._currentRenderer2 = null;
+    }
+
+    return context;
+  }
+
+  var Uninitialized = -1;
+  var Pending = 0;
+  var Resolved = 1;
+  var Rejected = 2;
+
+  function lazyInitializer(payload) {
+    if (payload._status === Uninitialized) {
+      var ctor = payload._result;
+      var thenable = ctor(); // Transition to the next state.
+
+      var pending = payload;
+      pending._status = Pending;
+      pending._result = thenable;
+      thenable.then(function (moduleObject) {
+        if (payload._status === Pending) {
+          var defaultExport = moduleObject.default;
+
+          {
+            if (defaultExport === undefined) {
+              error('lazy: Expected the result of a dynamic import() call. ' + 'Instead received: %s\n\nYour code should look like: \n  ' + // Break up imports to avoid accidentally parsing them as dependencies.
+              'const MyComponent = lazy(() => imp' + "ort('./MyComponent'))", moduleObject);
+            }
+          } // Transition to the next state.
+
+
+          var resolved = payload;
+          resolved._status = Resolved;
+          resolved._result = defaultExport;
+        }
+      }, function (error) {
+        if (payload._status === Pending) {
+          // Transition to the next state.
+          var rejected = payload;
+          rejected._status = Rejected;
+          rejected._result = error;
+        }
+      });
+    }
+
+    if (payload._status === Resolved) {
+      return payload._result;
+    } else {
+      throw payload._result;
+    }
+  }
+
+  function lazy(ctor) {
+    var payload = {
+      // We use these fields to store the result.
+      _status: -1,
+      _result: ctor
+    };
+    var lazyType = {
+      $$typeof: REACT_LAZY_TYPE,
+      _payload: payload,
+      _init: lazyInitializer
+    };
+
+    {
+      // In production, this would just set it on the object.
+      var defaultProps;
+      var propTypes; // $FlowFixMe
+
+      Object.defineProperties(lazyType, {
+        defaultProps: {
+          configurable: true,
+          get: function () {
+            return defaultProps;
+          },
+          set: function (newDefaultProps) {
+            error('React.lazy(...): It is not supported to assign `defaultProps` to ' + 'a lazy component import. Either specify them where the component ' + 'is defined, or create a wrapping component around it.');
+
+            defaultProps = newDefaultProps; // Match production behavior more closely:
+            // $FlowFixMe
+
+            Object.defineProperty(lazyType, 'defaultProps', {
+              enumerable: true
+            });
+          }
+        },
+        propTypes: {
+          configurable: true,
+          get: function () {
+            return propTypes;
+          },
+          set: function (newPropTypes) {
+            error('React.lazy(...): It is not supported to assign `propTypes` to ' + 'a lazy component import. Either specify them where the component ' + 'is defined, or create a wrapping component around it.');
+
+            propTypes = newPropTypes; // Match production behavior more closely:
+            // $FlowFixMe
+
+            Object.defineProperty(lazyType, 'propTypes', {
+              enumerable: true
+            });
+          }
+        }
+      });
+    }
+
+    return lazyType;
+  }
+
+  function forwardRef(render) {
+    {
+      if (render != null && render.$$typeof === REACT_MEMO_TYPE) {
+        error('forwardRef requires a render function but received a `memo` ' + 'component. Instead of forwardRef(memo(...)), use ' + 'memo(forwardRef(...)).');
+      } else if (typeof render !== 'function') {
+        error('forwardRef requires a render function but was given %s.', render === null ? 'null' : typeof render);
+      } else {
+        if (render.length !== 0 && render.length !== 2) {
+          error('forwardRef render functions accept exactly two parameters: props and ref. %s', render.length === 1 ? 'Did you forget to use the ref parameter?' : 'Any additional parameter will be undefined.');
+        }
+      }
+
+      if (render != null) {
+        if (render.defaultProps != null || render.propTypes != null) {
+          error('forwardRef render functions do not support propTypes or defaultProps. ' + 'Did you accidentally pass a React component?');
+        }
+      }
+    }
+
+    var elementType = {
+      $$typeof: REACT_FORWARD_REF_TYPE,
+      render: render
+    };
+
+    {
+      var ownName;
+      Object.defineProperty(elementType, 'displayName', {
+        enumerable: false,
+        configurable: true,
+        get: function () {
+          return ownName;
+        },
+        set: function (name) {
+          ownName = name;
+
+          if (render.displayName == null) {
+            render.displayName = name;
+          }
+        }
+      });
+    }
+
+    return elementType;
+  }
+
+  // Filter certain DOM attributes (e.g. src, href) if their values are empty strings.
+
+  var enableScopeAPI = false; // Experimental Create Event Handle API.
+
+  function isValidElementType(type) {
+    if (typeof type === 'string' || typeof type === 'function') {
+      return true;
+    } // Note: typeof might be other than 'symbol' or 'number' (e.g. if it's a polyfill).
+
+
+    if (type === exports.Fragment || type === exports.Profiler || type === REACT_DEBUG_TRACING_MODE_TYPE || type === exports.StrictMode || type === exports.Suspense || type === REACT_SUSPENSE_LIST_TYPE || type === REACT_LEGACY_HIDDEN_TYPE || enableScopeAPI ) {
+      return true;
+    }
+
+    if (typeof type === 'object' && type !== null) {
+      if (type.$$typeof === REACT_LAZY_TYPE || type.$$typeof === REACT_MEMO_TYPE || type.$$typeof === REACT_PROVIDER_TYPE || type.$$typeof === REACT_CONTEXT_TYPE || type.$$typeof === REACT_FORWARD_REF_TYPE || type.$$typeof === REACT_FUNDAMENTAL_TYPE || type.$$typeof === REACT_BLOCK_TYPE || type[0] === REACT_SERVER_BLOCK_TYPE) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  function memo(type, compare) {
+    {
+      if (!isValidElementType(type)) {
+        error('memo: The first argument must be a component. Instead ' + 'received: %s', type === null ? 'null' : typeof type);
+      }
+    }
+
+    var elementType = {
+      $$typeof: REACT_MEMO_TYPE,
+      type: type,
+      compare: compare === undefined ? null : compare
+    };
+
+    {
+      var ownName;
+      Object.defineProperty(elementType, 'displayName', {
+        enumerable: false,
+        configurable: true,
+        get: function () {
+          return ownName;
+        },
+        set: function (name) {
+          ownName = name;
+
+          if (type.displayName == null) {
+            type.displayName = name;
+          }
+        }
+      });
+    }
+
+    return elementType;
+  }
+
+  function resolveDispatcher() {
+    var dispatcher = ReactCurrentDispatcher.current;
+
+    if (!(dispatcher !== null)) {
+      {
+        throw Error( "Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:\n1. You might have mismatching versions of React and the renderer (such as React DOM)\n2. You might be breaking the Rules of Hooks\n3. You might have more than one copy of React in the same app\nSee https://reactjs.org/link/invalid-hook-call for tips about how to debug and fix this problem." );
+      }
+    }
+
+    return dispatcher;
+  }
+
+  function useContext(Context, unstable_observedBits) {
+    var dispatcher = resolveDispatcher();
+
+    {
+      if (unstable_observedBits !== undefined) {
+        error('useContext() second argument is reserved for future ' + 'use in React. Passing it is not supported. ' + 'You passed: %s.%s', unstable_observedBits, typeof unstable_observedBits === 'number' && Array.isArray(arguments[2]) ? '\n\nDid you call array.map(useContext)? ' + 'Calling Hooks inside a loop is not supported. ' + 'Learn more at https://reactjs.org/link/rules-of-hooks' : '');
+      } // TODO: add a more generic warning for invalid values.
+
+
+      if (Context._context !== undefined) {
+        var realContext = Context._context; // Don't deduplicate because this legitimately causes bugs
+        // and nobody should be using this in existing code.
+
+        if (realContext.Consumer === Context) {
+          error('Calling useContext(Context.Consumer) is not supported, may cause bugs, and will be ' + 'removed in a future major release. Did you mean to call useContext(Context) instead?');
+        } else if (realContext.Provider === Context) {
+          error('Calling useContext(Context.Provider) is not supported. ' + 'Did you mean to call useContext(Context) instead?');
+        }
+      }
+    }
+
+    return dispatcher.useContext(Context, unstable_observedBits);
+  }
+  function useState(initialState) {
+    var dispatcher = resolveDispatcher();
+    return dispatcher.useState(initialState);
+  }
+  function useReducer(reducer, initialArg, init) {
+    var dispatcher = resolveDispatcher();
+    return dispatcher.useReducer(reducer, initialArg, init);
+  }
+  function useRef(initialValue) {
+    var dispatcher = resolveDispatcher();
+    return dispatcher.useRef(initialValue);
+  }
+  function useEffect(create, deps) {
+    var dispatcher = resolveDispatcher();
+    return dispatcher.useEffect(create, deps);
+  }
+  function useLayoutEffect(create, deps) {
+    var dispatcher = resolveDispatcher();
+    return dispatcher.useLayoutEffect(create, deps);
+  }
+  function useCallback(callback, deps) {
+    var dispatcher = resolveDispatcher();
+    return dispatcher.useCallback(callback, deps);
+  }
+  function useMemo(create, deps) {
+    var dispatcher = resolveDispatcher();
+    return dispatcher.useMemo(create, deps);
+  }
+  function useImperativeHandle(ref, create, deps) {
+    var dispatcher = resolveDispatcher();
+    return dispatcher.useImperativeHandle(ref, create, deps);
+  }
+  function useDebugValue(value, formatterFn) {
+    {
+      var dispatcher = resolveDispatcher();
+      return dispatcher.useDebugValue(value, formatterFn);
+    }
+  }
+
+  // Helpers to patch console.logs to avoid logging during side-effect free
+  // replaying on render function. This currently only patches the object
+  // lazily which won't cover if the log function was extracted eagerly.
+  // We could also eagerly patch the method.
+  var disabledDepth = 0;
+  var prevLog;
+  var prevInfo;
+  var prevWarn;
+  var prevError;
+  var prevGroup;
+  var prevGroupCollapsed;
+  var prevGroupEnd;
+
+  function disabledLog() {}
+
+  disabledLog.__reactDisabledLog = true;
+  function disableLogs() {
+    {
+      if (disabledDepth === 0) {
+        /* eslint-disable react-internal/no-production-logging */
+        prevLog = console.log;
+        prevInfo = console.info;
+        prevWarn = console.warn;
+        prevError = console.error;
+        prevGroup = console.group;
+        prevGroupCollapsed = console.groupCollapsed;
+        prevGroupEnd = console.groupEnd; // https://github.com/facebook/react/issues/19099
+
+        var props = {
+          configurable: true,
+          enumerable: true,
+          value: disabledLog,
+          writable: true
+        }; // $FlowFixMe Flow thinks console is immutable.
+
+        Object.defineProperties(console, {
+          info: props,
+          log: props,
+          warn: props,
+          error: props,
+          group: props,
+          groupCollapsed: props,
+          groupEnd: props
+        });
+        /* eslint-enable react-internal/no-production-logging */
+      }
+
+      disabledDepth++;
+    }
+  }
+  function reenableLogs() {
+    {
+      disabledDepth--;
+
+      if (disabledDepth === 0) {
+        /* eslint-disable react-internal/no-production-logging */
+        var props = {
+          configurable: true,
+          enumerable: true,
+          writable: true
+        }; // $FlowFixMe Flow thinks console is immutable.
+
+        Object.defineProperties(console, {
+          log: assign({}, props, {
+            value: prevLog
+          }),
+          info: assign({}, props, {
+            value: prevInfo
+          }),
+          warn: assign({}, props, {
+            value: prevWarn
+          }),
+          error: assign({}, props, {
+            value: prevError
+          }),
+          group: assign({}, props, {
+            value: prevGroup
+          }),
+          groupCollapsed: assign({}, props, {
+            value: prevGroupCollapsed
+          }),
+          groupEnd: assign({}, props, {
+            value: prevGroupEnd
+          })
+        });
+        /* eslint-enable react-internal/no-production-logging */
+      }
+
+      if (disabledDepth < 0) {
+        error('disabledDepth fell below zero. ' + 'This is a bug in React. Please file an issue.');
+      }
+    }
+  }
+
+  var ReactCurrentDispatcher$1 = ReactSharedInternals.ReactCurrentDispatcher;
+  var prefix;
+  function describeBuiltInComponentFrame(name, source, ownerFn) {
+    {
+      if (prefix === undefined) {
+        // Extract the VM specific prefix used by each line.
+        try {
+          throw Error();
+        } catch (x) {
+          var match = x.stack.trim().match(/\n( *(at )?)/);
+          prefix = match && match[1] || '';
+        }
+      } // We use the prefix to ensure our stacks line up with native stack frames.
+
+
+      return '\n' + prefix + name;
+    }
+  }
+  var reentry = false;
+  var componentFrameCache;
+
+  {
+    var PossiblyWeakMap = typeof WeakMap === 'function' ? WeakMap : Map;
+    componentFrameCache = new PossiblyWeakMap();
+  }
+
+  function describeNativeComponentFrame(fn, construct) {
+    // If something asked for a stack inside a fake render, it should get ignored.
+    if (!fn || reentry) {
+      return '';
+    }
+
+    {
+      var frame = componentFrameCache.get(fn);
+
+      if (frame !== undefined) {
+        return frame;
+      }
+    }
+
+    var control;
+    reentry = true;
+    var previousPrepareStackTrace = Error.prepareStackTrace; // $FlowFixMe It does accept undefined.
+
+    Error.prepareStackTrace = undefined;
+    var previousDispatcher;
+
+    {
+      previousDispatcher = ReactCurrentDispatcher$1.current; // Set the dispatcher in DEV because this might be call in the render function
+      // for warnings.
+
+      ReactCurrentDispatcher$1.current = null;
+      disableLogs();
+    }
+
+    try {
+      // This should throw.
+      if (construct) {
+        // Something should be setting the props in the constructor.
+        var Fake = function () {
+          throw Error();
+        }; // $FlowFixMe
+
+
+        Object.defineProperty(Fake.prototype, 'props', {
+          set: function () {
+            // We use a throwing setter instead of frozen or non-writable props
+            // because that won't throw in a non-strict mode function.
+            throw Error();
+          }
+        });
+
+        if (typeof Reflect === 'object' && Reflect.construct) {
+          // We construct a different control for this case to include any extra
+          // frames added by the construct call.
+          try {
+            Reflect.construct(Fake, []);
+          } catch (x) {
+            control = x;
+          }
+
+          Reflect.construct(fn, [], Fake);
+        } else {
+          try {
+            Fake.call();
+          } catch (x) {
+            control = x;
+          }
+
+          fn.call(Fake.prototype);
+        }
+      } else {
+        try {
+          throw Error();
+        } catch (x) {
+          control = x;
+        }
+
+        fn();
+      }
+    } catch (sample) {
+      // This is inlined manually because closure doesn't do it for us.
+      if (sample && control && typeof sample.stack === 'string') {
+        // This extracts the first frame from the sample that isn't also in the control.
+        // Skipping one frame that we assume is the frame that calls the two.
+        var sampleLines = sample.stack.split('\n');
+        var controlLines = control.stack.split('\n');
+        var s = sampleLines.length - 1;
+        var c = controlLines.length - 1;
+
+        while (s >= 1 && c >= 0 && sampleLines[s] !== controlLines[c]) {
+          // We expect at least one stack frame to be shared.
+          // Typically this will be the root most one. However, stack frames may be
+          // cut off due to maximum stack limits. In this case, one maybe cut off
+          // earlier than the other. We assume that the sample is longer or the same
+          // and there for cut off earlier. So we should find the root most frame in
+          // the sample somewhere in the control.
+          c--;
+        }
+
+        for (; s >= 1 && c >= 0; s--, c--) {
+          // Next we find the first one that isn't the same which should be the
+          // frame that called our sample function and the control.
+          if (sampleLines[s] !== controlLines[c]) {
+            // In V8, the first line is describing the message but other VMs don't.
+            // If we're about to return the first line, and the control is also on the same
+            // line, that's a pretty good indicator that our sample threw at same line as
+            // the control. I.e. before we entered the sample frame. So we ignore this result.
+            // This can happen if you passed a class to function component, or non-function.
+            if (s !== 1 || c !== 1) {
+              do {
+                s--;
+                c--; // We may still have similar intermediate frames from the construct call.
+                // The next one that isn't the same should be our match though.
+
+                if (c < 0 || sampleLines[s] !== controlLines[c]) {
+                  // V8 adds a "new" prefix for native classes. Let's remove it to make it prettier.
+                  var _frame = '\n' + sampleLines[s].replace(' at new ', ' at ');
+
+                  {
+                    if (typeof fn === 'function') {
+                      componentFrameCache.set(fn, _frame);
+                    }
+                  } // Return the line we found.
+
+
+                  return _frame;
+                }
+              } while (s >= 1 && c >= 0);
+            }
+
+            break;
+          }
+        }
+      }
+    } finally {
+      reentry = false;
+
+      {
+        ReactCurrentDispatcher$1.current = previousDispatcher;
+        reenableLogs();
+      }
+
+      Error.prepareStackTrace = previousPrepareStackTrace;
+    } // Fallback to just using the name if we couldn't make it throw.
+
+
+    var name = fn ? fn.displayName || fn.name : '';
+    var syntheticFrame = name ? describeBuiltInComponentFrame(name) : '';
+
+    {
+      if (typeof fn === 'function') {
+        componentFrameCache.set(fn, syntheticFrame);
+      }
+    }
+
+    return syntheticFrame;
+  }
+  function describeFunctionComponentFrame(fn, source, ownerFn) {
+    {
+      return describeNativeComponentFrame(fn, false);
+    }
+  }
+
+  function shouldConstruct(Component) {
+    var prototype = Component.prototype;
+    return !!(prototype && prototype.isReactComponent);
+  }
+
+  function describeUnknownElementTypeFrameInDEV(type, source, ownerFn) {
+
+    if (type == null) {
+      return '';
+    }
+
+    if (typeof type === 'function') {
+      {
+        return describeNativeComponentFrame(type, shouldConstruct(type));
+      }
+    }
+
+    if (typeof type === 'string') {
+      return describeBuiltInComponentFrame(type);
+    }
+
+    switch (type) {
+      case exports.Suspense:
+        return describeBuiltInComponentFrame('Suspense');
+
+      case REACT_SUSPENSE_LIST_TYPE:
+        return describeBuiltInComponentFrame('SuspenseList');
+    }
+
+    if (typeof type === 'object') {
+      switch (type.$$typeof) {
+        case REACT_FORWARD_REF_TYPE:
+          return describeFunctionComponentFrame(type.render);
+
+        case REACT_MEMO_TYPE:
+          // Memo may contain any component type so we recursively resolve it.
+          return describeUnknownElementTypeFrameInDEV(type.type, source, ownerFn);
+
+        case REACT_BLOCK_TYPE:
+          return describeFunctionComponentFrame(type._render);
+
+        case REACT_LAZY_TYPE:
+          {
+            var lazyComponent = type;
+            var payload = lazyComponent._payload;
+            var init = lazyComponent._init;
+
+            try {
+              // Lazy may contain any component type so we recursively resolve it.
+              return describeUnknownElementTypeFrameInDEV(init(payload), source, ownerFn);
+            } catch (x) {}
+          }
+      }
+    }
+
+    return '';
+  }
+
+  var loggedTypeFailures = {};
+  var ReactDebugCurrentFrame$1 = ReactSharedInternals.ReactDebugCurrentFrame;
+
+  function setCurrentlyValidatingElement(element) {
+    {
+      if (element) {
+        var owner = element._owner;
+        var stack = describeUnknownElementTypeFrameInDEV(element.type, element._source, owner ? owner.type : null);
+        ReactDebugCurrentFrame$1.setExtraStackFrame(stack);
+      } else {
+        ReactDebugCurrentFrame$1.setExtraStackFrame(null);
+      }
+    }
+  }
+
+  function checkPropTypes(typeSpecs, values, location, componentName, element) {
+    {
+      // $FlowFixMe This is okay but Flow doesn't know it.
+      var has = Function.call.bind(Object.prototype.hasOwnProperty);
+
+      for (var typeSpecName in typeSpecs) {
+        if (has(typeSpecs, typeSpecName)) {
+          var error$1 = void 0; // Prop type validation may throw. In case they do, we don't want to
+          // fail the render phase where it didn't fail before. So we log it.
+          // After these have been cleaned up, we'll let them throw.
+
+          try {
+            // This is intentionally an invariant that gets caught. It's the same
+            // behavior as without this statement except with a better message.
+            if (typeof typeSpecs[typeSpecName] !== 'function') {
+              var err = Error((componentName || 'React class') + ': ' + location + ' type `' + typeSpecName + '` is invalid; ' + 'it must be a function, usually from the `prop-types` package, but received `' + typeof typeSpecs[typeSpecName] + '`.' + 'This often happens because of typos such as `PropTypes.function` instead of `PropTypes.func`.');
+              err.name = 'Invariant Violation';
+              throw err;
+            }
+
+            error$1 = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED');
+          } catch (ex) {
+            error$1 = ex;
+          }
+
+          if (error$1 && !(error$1 instanceof Error)) {
+            setCurrentlyValidatingElement(element);
+
+            error('%s: type specification of %s' + ' `%s` is invalid; the type checker ' + 'function must return `null` or an `Error` but returned a %s. ' + 'You may have forgotten to pass an argument to the type checker ' + 'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' + 'shape all require an argument).', componentName || 'React class', location, typeSpecName, typeof error$1);
+
+            setCurrentlyValidatingElement(null);
+          }
+
+          if (error$1 instanceof Error && !(error$1.message in loggedTypeFailures)) {
+            // Only monitor this failure once because there tends to be a lot of the
+            // same error.
+            loggedTypeFailures[error$1.message] = true;
+            setCurrentlyValidatingElement(element);
+
+            error('Failed %s type: %s', location, error$1.message);
+
+            setCurrentlyValidatingElement(null);
+          }
+        }
+      }
+    }
+  }
+
+  function setCurrentlyValidatingElement$1(element) {
+    {
+      if (element) {
+        var owner = element._owner;
+        var stack = describeUnknownElementTypeFrameInDEV(element.type, element._source, owner ? owner.type : null);
+        setExtraStackFrame(stack);
+      } else {
+        setExtraStackFrame(null);
+      }
+    }
+  }
+
+  var propTypesMisspellWarningShown;
+
+  {
+    propTypesMisspellWarningShown = false;
+  }
+
+  function getDeclarationErrorAddendum() {
+    if (ReactCurrentOwner.current) {
+      var name = getComponentName(ReactCurrentOwner.current.type);
+
+      if (name) {
+        return '\n\nCheck the render method of `' + name + '`.';
+      }
+    }
+
+    return '';
+  }
+
+  function getSourceInfoErrorAddendum(source) {
+    if (source !== undefined) {
+      var fileName = source.fileName.replace(/^.*[\\\/]/, '');
+      var lineNumber = source.lineNumber;
+      return '\n\nCheck your code at ' + fileName + ':' + lineNumber + '.';
+    }
+
+    return '';
+  }
+
+  function getSourceInfoErrorAddendumForProps(elementProps) {
+    if (elementProps !== null && elementProps !== undefined) {
+      return getSourceInfoErrorAddendum(elementProps.__source);
+    }
+
+    return '';
+  }
+  /**
+   * Warn if there's no key explicitly set on dynamic arrays of children or
+   * object keys are not valid. This allows us to keep track of children between
+   * updates.
+   */
+
+
+  var ownerHasKeyUseWarning = {};
+
+  function getCurrentComponentErrorInfo(parentType) {
+    var info = getDeclarationErrorAddendum();
+
+    if (!info) {
+      var parentName = typeof parentType === 'string' ? parentType : parentType.displayName || parentType.name;
+
+      if (parentName) {
+        info = "\n\nCheck the top-level render call using <" + parentName + ">.";
+      }
+    }
+
+    return info;
+  }
+  /**
+   * Warn if the element doesn't have an explicit key assigned to it.
+   * This element is in an array. The array could grow and shrink or be
+   * reordered. All children that haven't already been validated are required to
+   * have a "key" property assigned to it. Error statuses are cached so a warning
+   * will only be shown once.
+   *
+   * @internal
+   * @param {ReactElement} element Element that requires a key.
+   * @param {*} parentType element's parent's type.
+   */
+
+
+  function validateExplicitKey(element, parentType) {
+    if (!element._store || element._store.validated || element.key != null) {
+      return;
+    }
+
+    element._store.validated = true;
+    var currentComponentErrorInfo = getCurrentComponentErrorInfo(parentType);
+
+    if (ownerHasKeyUseWarning[currentComponentErrorInfo]) {
+      return;
+    }
+
+    ownerHasKeyUseWarning[currentComponentErrorInfo] = true; // Usually the current owner is the offender, but if it accepts children as a
+    // property, it may be the creator of the child that's responsible for
+    // assigning it a key.
+
+    var childOwner = '';
+
+    if (element && element._owner && element._owner !== ReactCurrentOwner.current) {
+      // Give the component that originally created this child.
+      childOwner = " It was passed a child from " + getComponentName(element._owner.type) + ".";
+    }
+
+    {
+      setCurrentlyValidatingElement$1(element);
+
+      error('Each child in a list should have a unique "key" prop.' + '%s%s See https://reactjs.org/link/warning-keys for more information.', currentComponentErrorInfo, childOwner);
+
+      setCurrentlyValidatingElement$1(null);
+    }
+  }
+  /**
+   * Ensure that every element either is passed in a static location, in an
+   * array with an explicit keys property defined, or in an object literal
+   * with valid key property.
+   *
+   * @internal
+   * @param {ReactNode} node Statically passed child of any type.
+   * @param {*} parentType node's parent's type.
+   */
+
+
+  function validateChildKeys(node, parentType) {
+    if (typeof node !== 'object') {
+      return;
+    }
+
+    if (Array.isArray(node)) {
+      for (var i = 0; i < node.length; i++) {
+        var child = node[i];
+
+        if (isValidElement(child)) {
+          validateExplicitKey(child, parentType);
+        }
+      }
+    } else if (isValidElement(node)) {
+      // This element was passed in a valid location.
+      if (node._store) {
+        node._store.validated = true;
+      }
+    } else if (node) {
+      var iteratorFn = getIteratorFn(node);
+
+      if (typeof iteratorFn === 'function') {
+        // Entry iterators used to provide implicit keys,
+        // but now we print a separate warning for them later.
+        if (iteratorFn !== node.entries) {
+          var iterator = iteratorFn.call(node);
+          var step;
+
+          while (!(step = iterator.next()).done) {
+            if (isValidElement(step.value)) {
+              validateExplicitKey(step.value, parentType);
+            }
+          }
+        }
+      }
+    }
+  }
+  /**
+   * Given an element, validate that its props follow the propTypes definition,
+   * provided by the type.
+   *
+   * @param {ReactElement} element
+   */
+
+
+  function validatePropTypes(element) {
+    {
+      var type = element.type;
+
+      if (type === null || type === undefined || typeof type === 'string') {
+        return;
+      }
+
+      var propTypes;
+
+      if (typeof type === 'function') {
+        propTypes = type.propTypes;
+      } else if (typeof type === 'object' && (type.$$typeof === REACT_FORWARD_REF_TYPE || // Note: Memo only checks outer props here.
+      // Inner props are checked in the reconciler.
+      type.$$typeof === REACT_MEMO_TYPE)) {
+        propTypes = type.propTypes;
+      } else {
+        return;
+      }
+
+      if (propTypes) {
+        // Intentionally inside to avoid triggering lazy initializers:
+        var name = getComponentName(type);
+        checkPropTypes(propTypes, element.props, 'prop', name, element);
+      } else if (type.PropTypes !== undefined && !propTypesMisspellWarningShown) {
+        propTypesMisspellWarningShown = true; // Intentionally inside to avoid triggering lazy initializers:
+
+        var _name = getComponentName(type);
+
+        error('Component %s declared `PropTypes` instead of `propTypes`. Did you misspell the property assignment?', _name || 'Unknown');
+      }
+
+      if (typeof type.getDefaultProps === 'function' && !type.getDefaultProps.isReactClassApproved) {
+        error('getDefaultProps is only used on classic React.createClass ' + 'definitions. Use a static property named `defaultProps` instead.');
+      }
+    }
+  }
+  /**
+   * Given a fragment, validate that it can only be provided with fragment props
+   * @param {ReactElement} fragment
+   */
+
+
+  function validateFragmentProps(fragment) {
+    {
+      var keys = Object.keys(fragment.props);
+
+      for (var i = 0; i < keys.length; i++) {
+        var key = keys[i];
+
+        if (key !== 'children' && key !== 'key') {
+          setCurrentlyValidatingElement$1(fragment);
+
+          error('Invalid prop `%s` supplied to `React.Fragment`. ' + 'React.Fragment can only have `key` and `children` props.', key);
+
+          setCurrentlyValidatingElement$1(null);
+          break;
+        }
+      }
+
+      if (fragment.ref !== null) {
+        setCurrentlyValidatingElement$1(fragment);
+
+        error('Invalid attribute `ref` supplied to `React.Fragment`.');
+
+        setCurrentlyValidatingElement$1(null);
+      }
+    }
+  }
+  function createElementWithValidation(type, props, children) {
+    var validType = isValidElementType(type); // We warn in this case but don't throw. We expect the element creation to
+    // succeed and there will likely be errors in render.
+
+    if (!validType) {
+      var info = '';
+
+      if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
+        info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and named imports.";
+      }
+
+      var sourceInfo = getSourceInfoErrorAddendumForProps(props);
+
+      if (sourceInfo) {
+        info += sourceInfo;
+      } else {
+        info += getDeclarationErrorAddendum();
+      }
+
+      var typeString;
+
+      if (type === null) {
+        typeString = 'null';
+      } else if (Array.isArray(type)) {
+        typeString = 'array';
+      } else if (type !== undefined && type.$$typeof === REACT_ELEMENT_TYPE) {
+        typeString = "<" + (getComponentName(type.type) || 'Unknown') + " />";
+        info = ' Did you accidentally export a JSX literal instead of a component?';
+      } else {
+        typeString = typeof type;
+      }
+
+      {
+        error('React.createElement: type is invalid -- expected a string (for ' + 'built-in components) or a class/function (for composite ' + 'components) but got: %s.%s', typeString, info);
+      }
+    }
+
+    var element = createElement.apply(this, arguments); // The result can be nullish if a mock or a custom function is used.
+    // TODO: Drop this when these are no longer allowed as the type argument.
+
+    if (element == null) {
+      return element;
+    } // Skip key warning if the type isn't valid since our key validation logic
+    // doesn't expect a non-string/function type and can throw confusing errors.
+    // We don't want exception behavior to differ between dev and prod.
+    // (Rendering will throw with a helpful message and as soon as the type is
+    // fixed, the key warnings will appear.)
+
+
+    if (validType) {
+      for (var i = 2; i < arguments.length; i++) {
+        validateChildKeys(arguments[i], type);
+      }
+    }
+
+    if (type === exports.Fragment) {
+      validateFragmentProps(element);
+    } else {
+      validatePropTypes(element);
+    }
+
+    return element;
+  }
+  var didWarnAboutDeprecatedCreateFactory = false;
+  function createFactoryWithValidation(type) {
+    var validatedFactory = createElementWithValidation.bind(null, type);
+    validatedFactory.type = type;
+
+    {
+      if (!didWarnAboutDeprecatedCreateFactory) {
+        didWarnAboutDeprecatedCreateFactory = true;
+
+        warn('React.createFactory() is deprecated and will be removed in ' + 'a future major release. Consider using JSX ' + 'or use React.createElement() directly instead.');
+      } // Legacy hook: remove it
+
+
+      Object.defineProperty(validatedFactory, 'type', {
+        enumerable: false,
+        get: function () {
+          warn('Factory.type is deprecated. Access the class directly ' + 'before passing it to createFactory.');
+
+          Object.defineProperty(this, 'type', {
+            value: type
+          });
+          return type;
+        }
+      });
+    }
+
+    return validatedFactory;
+  }
+  function cloneElementWithValidation(element, props, children) {
+    var newElement = cloneElement.apply(this, arguments);
+
+    for (var i = 2; i < arguments.length; i++) {
+      validateChildKeys(arguments[i], newElement.type);
+    }
+
+    validatePropTypes(newElement);
+    return newElement;
+  }
+
+  var enableSchedulerDebugging = false;
+  var enableProfiling = false;
+
+  var requestHostCallback;
+  var requestHostTimeout;
+  var cancelHostTimeout;
+  var shouldYieldToHost;
+  var requestPaint;
+  var getCurrentTime;
+  var forceFrameRate;
+  var hasPerformanceNow = typeof performance === 'object' && typeof performance.now === 'function';
+
+  if (hasPerformanceNow) {
+    var localPerformance = performance;
+
+    getCurrentTime = function () {
+      return localPerformance.now();
+    };
+  } else {
+    var localDate = Date;
+    var initialTime = localDate.now();
+
+    getCurrentTime = function () {
+      return localDate.now() - initialTime;
+    };
+  }
+
+  if ( // If Scheduler runs in a non-DOM environment, it falls back to a naive
+  // implementation using setTimeout.
+  typeof window === 'undefined' || // Check if MessageChannel is supported, too.
+  typeof MessageChannel !== 'function') {
+    // If this accidentally gets imported in a non-browser environment, e.g. JavaScriptCore,
+    // fallback to a naive implementation.
+    var _callback = null;
+    var _timeoutID = null;
+
+    var _flushCallback = function () {
+      if (_callback !== null) {
+        try {
+          var currentTime = getCurrentTime();
+          var hasRemainingTime = true;
+
+          _callback(hasRemainingTime, currentTime);
+
+          _callback = null;
+        } catch (e) {
+          setTimeout(_flushCallback, 0);
+          throw e;
+        }
+      }
+    };
+
+    requestHostCallback = function (cb) {
+      if (_callback !== null) {
+        // Protect against re-entrancy.
+        setTimeout(requestHostCallback, 0, cb);
+      } else {
+        _callback = cb;
+        setTimeout(_flushCallback, 0);
+      }
+    };
+
+    requestHostTimeout = function (cb, ms) {
+      _timeoutID = setTimeout(cb, ms);
+    };
+
+    cancelHostTimeout = function () {
+      clearTimeout(_timeoutID);
+    };
+
+    shouldYieldToHost = function () {
+      return false;
+    };
+
+    requestPaint = forceFrameRate = function () {};
+  } else {
+    // Capture local references to native APIs, in case a polyfill overrides them.
+    var _setTimeout = window.setTimeout;
+    var _clearTimeout = window.clearTimeout;
+
+    if (typeof console !== 'undefined') {
+      // TODO: Scheduler no longer requires these methods to be polyfilled. But
+      // maybe we want to continue warning if they don't exist, to preserve the
+      // option to rely on it in the future?
+      var requestAnimationFrame = window.requestAnimationFrame;
+      var cancelAnimationFrame = window.cancelAnimationFrame;
+
+      if (typeof requestAnimationFrame !== 'function') {
+        // Using console['error'] to evade Babel and ESLint
+        console['error']("This browser doesn't support requestAnimationFrame. " + 'Make sure that you load a ' + 'polyfill in older browsers. https://reactjs.org/link/react-polyfills');
+      }
+
+      if (typeof cancelAnimationFrame !== 'function') {
+        // Using console['error'] to evade Babel and ESLint
+        console['error']("This browser doesn't support cancelAnimationFrame. " + 'Make sure that you load a ' + 'polyfill in older browsers. https://reactjs.org/link/react-polyfills');
+      }
+    }
+
+    var isMessageLoopRunning = false;
+    var scheduledHostCallback = null;
+    var taskTimeoutID = -1; // Scheduler periodically yields in case there is other work on the main
+    // thread, like user events. By default, it yields multiple times per frame.
+    // It does not attempt to align with frame boundaries, since most tasks don't
+    // need to be frame aligned; for those that do, use requestAnimationFrame.
+
+    var yieldInterval = 5;
+    var deadline = 0; // TODO: Make this configurable
+
+    {
+      // `isInputPending` is not available. Since we have no way of knowing if
+      // there's pending input, always yield at the end of the frame.
+      shouldYieldToHost = function () {
+        return getCurrentTime() >= deadline;
+      }; // Since we yield every frame regardless, `requestPaint` has no effect.
+
+
+      requestPaint = function () {};
+    }
+
+    forceFrameRate = function (fps) {
+      if (fps < 0 || fps > 125) {
+        // Using console['error'] to evade Babel and ESLint
+        console['error']('forceFrameRate takes a positive int between 0 and 125, ' + 'forcing frame rates higher than 125 fps is not supported');
+        return;
+      }
+
+      if (fps > 0) {
+        yieldInterval = Math.floor(1000 / fps);
+      } else {
+        // reset the framerate
+        yieldInterval = 5;
+      }
+    };
+
+    var performWorkUntilDeadline = function () {
+      if (scheduledHostCallback !== null) {
+        var currentTime = getCurrentTime(); // Yield after `yieldInterval` ms, regardless of where we are in the vsync
+        // cycle. This means there's always time remaining at the beginning of
+        // the message event.
+
+        deadline = currentTime + yieldInterval;
+        var hasTimeRemaining = true;
+
+        try {
+          var hasMoreWork = scheduledHostCallback(hasTimeRemaining, currentTime);
+
+          if (!hasMoreWork) {
+            isMessageLoopRunning = false;
+            scheduledHostCallback = null;
+          } else {
+            // If there's more work, schedule the next message event at the end
+            // of the preceding one.
+            port.postMessage(null);
+          }
+        } catch (error) {
+          // If a scheduler task throws, exit the current browser task so the
+          // error can be observed.
+          port.postMessage(null);
+          throw error;
+        }
+      } else {
+        isMessageLoopRunning = false;
+      } // Yielding to the browser will give it a chance to paint, so we can
+    };
+
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = performWorkUntilDeadline;
+
+    requestHostCallback = function (callback) {
+      scheduledHostCallback = callback;
+
+      if (!isMessageLoopRunning) {
+        isMessageLoopRunning = true;
+        port.postMessage(null);
+      }
+    };
+
+    requestHostTimeout = function (callback, ms) {
+      taskTimeoutID = _setTimeout(function () {
+        callback(getCurrentTime());
+      }, ms);
+    };
+
+    cancelHostTimeout = function () {
+      _clearTimeout(taskTimeoutID);
+
+      taskTimeoutID = -1;
+    };
+  }
+
+  function push(heap, node) {
+    var index = heap.length;
+    heap.push(node);
+    siftUp(heap, node, index);
+  }
+  function peek(heap) {
+    var first = heap[0];
+    return first === undefined ? null : first;
+  }
+  function pop(heap) {
+    var first = heap[0];
+
+    if (first !== undefined) {
+      var last = heap.pop();
+
+      if (last !== first) {
+        heap[0] = last;
+        siftDown(heap, last, 0);
+      }
+
+      return first;
+    } else {
+      return null;
+    }
+  }
+
+  function siftUp(heap, node, i) {
+    var index = i;
+
+    while (true) {
+      var parentIndex = index - 1 >>> 1;
+      var parent = heap[parentIndex];
+
+      if (parent !== undefined && compare(parent, node) > 0) {
+        // The parent is larger. Swap positions.
+        heap[parentIndex] = node;
+        heap[index] = parent;
+        index = parentIndex;
+      } else {
+        // The parent is smaller. Exit.
+        return;
+      }
+    }
+  }
+
+  function siftDown(heap, node, i) {
+    var index = i;
+    var length = heap.length;
+
+    while (index < length) {
+      var leftIndex = (index + 1) * 2 - 1;
+      var left = heap[leftIndex];
+      var rightIndex = leftIndex + 1;
+      var right = heap[rightIndex]; // If the left or right node is smaller, swap with the smaller of those.
+
+      if (left !== undefined && compare(left, node) < 0) {
+        if (right !== undefined && compare(right, left) < 0) {
+          heap[index] = right;
+          heap[rightIndex] = node;
+          index = rightIndex;
+        } else {
+          heap[index] = left;
+          heap[leftIndex] = node;
+          index = leftIndex;
+        }
+      } else if (right !== undefined && compare(right, node) < 0) {
+        heap[index] = right;
+        heap[rightIndex] = node;
+        index = rightIndex;
+      } else {
+        // Neither child is smaller. Exit.
+        return;
+      }
+    }
+  }
+
+  function compare(a, b) {
+    // Compare sort index first, then task id.
+    var diff = a.sortIndex - b.sortIndex;
+    return diff !== 0 ? diff : a.id - b.id;
+  }
+
+  // TODO: Use symbols?
+  var ImmediatePriority = 1;
+  var UserBlockingPriority = 2;
+  var NormalPriority = 3;
+  var LowPriority = 4;
+  var IdlePriority = 5;
+
+  function markTaskErrored(task, ms) {
+  }
+
+  /* eslint-disable no-var */
+  // Math.pow(2, 30) - 1
+  // 0b111111111111111111111111111111
+
+  var maxSigned31BitInt = 1073741823; // Times out immediately
+
+  var IMMEDIATE_PRIORITY_TIMEOUT = -1; // Eventually times out
+
+  var USER_BLOCKING_PRIORITY_TIMEOUT = 250;
+  var NORMAL_PRIORITY_TIMEOUT = 5000;
+  var LOW_PRIORITY_TIMEOUT = 10000; // Never times out
+
+  var IDLE_PRIORITY_TIMEOUT = maxSigned31BitInt; // Tasks are stored on a min heap
+
+  var taskQueue = [];
+  var timerQueue = []; // Incrementing id counter. Used to maintain insertion order.
+
+  var taskIdCounter = 1; // Pausing the scheduler is useful for debugging.
+  var currentTask = null;
+  var currentPriorityLevel = NormalPriority; // This is set while performing work, to prevent re-entrancy.
+
+  var isPerformingWork = false;
+  var isHostCallbackScheduled = false;
+  var isHostTimeoutScheduled = false;
+
+  function advanceTimers(currentTime) {
+    // Check for tasks that are no longer delayed and add them to the queue.
+    var timer = peek(timerQueue);
+
+    while (timer !== null) {
+      if (timer.callback === null) {
+        // Timer was cancelled.
+        pop(timerQueue);
+      } else if (timer.startTime <= currentTime) {
+        // Timer fired. Transfer to the task queue.
+        pop(timerQueue);
+        timer.sortIndex = timer.expirationTime;
+        push(taskQueue, timer);
+      } else {
+        // Remaining timers are pending.
+        return;
+      }
+
+      timer = peek(timerQueue);
+    }
+  }
+
+  function handleTimeout(currentTime) {
+    isHostTimeoutScheduled = false;
+    advanceTimers(currentTime);
+
+    if (!isHostCallbackScheduled) {
+      if (peek(taskQueue) !== null) {
+        isHostCallbackScheduled = true;
+        requestHostCallback(flushWork);
+      } else {
+        var firstTimer = peek(timerQueue);
+
+        if (firstTimer !== null) {
+          requestHostTimeout(handleTimeout, firstTimer.startTime - currentTime);
+        }
+      }
+    }
+  }
+
+  function flushWork(hasTimeRemaining, initialTime) {
+
+
+    isHostCallbackScheduled = false;
+
+    if (isHostTimeoutScheduled) {
+      // We scheduled a timeout but it's no longer needed. Cancel it.
+      isHostTimeoutScheduled = false;
+      cancelHostTimeout();
+    }
+
+    isPerformingWork = true;
+    var previousPriorityLevel = currentPriorityLevel;
+
+    try {
+      if (enableProfiling) {
+        try {
+          return workLoop(hasTimeRemaining, initialTime);
+        } catch (error) {
+          if (currentTask !== null) {
+            var currentTime = getCurrentTime();
+            markTaskErrored(currentTask, currentTime);
+            currentTask.isQueued = false;
+          }
+
+          throw error;
+        }
+      } else {
+        // No catch in prod code path.
+        return workLoop(hasTimeRemaining, initialTime);
+      }
+    } finally {
+      currentTask = null;
+      currentPriorityLevel = previousPriorityLevel;
+      isPerformingWork = false;
+    }
+  }
+
+  function workLoop(hasTimeRemaining, initialTime) {
+    var currentTime = initialTime;
+    advanceTimers(currentTime);
+    currentTask = peek(taskQueue);
+
+    while (currentTask !== null && !(enableSchedulerDebugging )) {
+      if (currentTask.expirationTime > currentTime && (!hasTimeRemaining || shouldYieldToHost())) {
+        // This currentTask hasn't expired, and we've reached the deadline.
+        break;
+      }
+
+      var callback = currentTask.callback;
+
+      if (typeof callback === 'function') {
+        currentTask.callback = null;
+        currentPriorityLevel = currentTask.priorityLevel;
+        var didUserCallbackTimeout = currentTask.expirationTime <= currentTime;
+
+        var continuationCallback = callback(didUserCallbackTimeout);
+        currentTime = getCurrentTime();
+
+        if (typeof continuationCallback === 'function') {
+          currentTask.callback = continuationCallback;
+        } else {
+
+          if (currentTask === peek(taskQueue)) {
+            pop(taskQueue);
+          }
+        }
+
+        advanceTimers(currentTime);
+      } else {
+        pop(taskQueue);
+      }
+
+      currentTask = peek(taskQueue);
+    } // Return whether there's additional work
+
+
+    if (currentTask !== null) {
+      return true;
+    } else {
+      var firstTimer = peek(timerQueue);
+
+      if (firstTimer !== null) {
+        requestHostTimeout(handleTimeout, firstTimer.startTime - currentTime);
+      }
+
+      return false;
+    }
+  }
+
+  function unstable_runWithPriority(priorityLevel, eventHandler) {
+    switch (priorityLevel) {
+      case ImmediatePriority:
+      case UserBlockingPriority:
+      case NormalPriority:
+      case LowPriority:
+      case IdlePriority:
+        break;
+
+      default:
+        priorityLevel = NormalPriority;
+    }
+
+    var previousPriorityLevel = currentPriorityLevel;
+    currentPriorityLevel = priorityLevel;
+
+    try {
+      return eventHandler();
+    } finally {
+      currentPriorityLevel = previousPriorityLevel;
+    }
+  }
+
+  function unstable_next(eventHandler) {
+    var priorityLevel;
+
+    switch (currentPriorityLevel) {
+      case ImmediatePriority:
+      case UserBlockingPriority:
+      case NormalPriority:
+        // Shift down to normal priority
+        priorityLevel = NormalPriority;
+        break;
+
+      default:
+        // Anything lower than normal priority should remain at the current level.
+        priorityLevel = currentPriorityLevel;
+        break;
+    }
+
+    var previousPriorityLevel = currentPriorityLevel;
+    currentPriorityLevel = priorityLevel;
+
+    try {
+      return eventHandler();
+    } finally {
+      currentPriorityLevel = previousPriorityLevel;
+    }
+  }
+
+  function unstable_wrapCallback(callback) {
+    var parentPriorityLevel = currentPriorityLevel;
+    return function () {
+      // This is a fork of runWithPriority, inlined for performance.
+      var previousPriorityLevel = currentPriorityLevel;
+      currentPriorityLevel = parentPriorityLevel;
+
+      try {
+        return callback.apply(this, arguments);
+      } finally {
+        currentPriorityLevel = previousPriorityLevel;
+      }
+    };
+  }
+
+  function unstable_scheduleCallback(priorityLevel, callback, options) {
+    var currentTime = getCurrentTime();
+    var startTime;
+
+    if (typeof options === 'object' && options !== null) {
+      var delay = options.delay;
+
+      if (typeof delay === 'number' && delay > 0) {
+        startTime = currentTime + delay;
+      } else {
+        startTime = currentTime;
+      }
+    } else {
+      startTime = currentTime;
+    }
+
+    var timeout;
+
+    switch (priorityLevel) {
+      case ImmediatePriority:
+        timeout = IMMEDIATE_PRIORITY_TIMEOUT;
+        break;
+
+      case UserBlockingPriority:
+        timeout = USER_BLOCKING_PRIORITY_TIMEOUT;
+        break;
+
+      case IdlePriority:
+        timeout = IDLE_PRIORITY_TIMEOUT;
+        break;
+
+      case LowPriority:
+        timeout = LOW_PRIORITY_TIMEOUT;
+        break;
+
+      case NormalPriority:
+      default:
+        timeout = NORMAL_PRIORITY_TIMEOUT;
+        break;
+    }
+
+    var expirationTime = startTime + timeout;
+    var newTask = {
+      id: taskIdCounter++,
+      callback: callback,
+      priorityLevel: priorityLevel,
+      startTime: startTime,
+      expirationTime: expirationTime,
+      sortIndex: -1
+    };
+
+    if (startTime > currentTime) {
+      // This is a delayed task.
+      newTask.sortIndex = startTime;
+      push(timerQueue, newTask);
+
+      if (peek(taskQueue) === null && newTask === peek(timerQueue)) {
+        // All tasks are delayed, and this is the task with the earliest delay.
+        if (isHostTimeoutScheduled) {
+          // Cancel an existing timeout.
+          cancelHostTimeout();
+        } else {
+          isHostTimeoutScheduled = true;
+        } // Schedule a timeout.
+
+
+        requestHostTimeout(handleTimeout, startTime - currentTime);
+      }
+    } else {
+      newTask.sortIndex = expirationTime;
+      push(taskQueue, newTask);
+      // wait until the next time we yield.
+
+
+      if (!isHostCallbackScheduled && !isPerformingWork) {
+        isHostCallbackScheduled = true;
+        requestHostCallback(flushWork);
+      }
+    }
+
+    return newTask;
+  }
+
+  function unstable_pauseExecution() {
+  }
+
+  function unstable_continueExecution() {
+
+    if (!isHostCallbackScheduled && !isPerformingWork) {
+      isHostCallbackScheduled = true;
+      requestHostCallback(flushWork);
+    }
+  }
+
+  function unstable_getFirstCallbackNode() {
+    return peek(taskQueue);
+  }
+
+  function unstable_cancelCallback(task) {
+    // remove from the queue because you can't remove arbitrary nodes from an
+    // array based heap, only the first one.)
+
+
+    task.callback = null;
+  }
+
+  function unstable_getCurrentPriorityLevel() {
+    return currentPriorityLevel;
+  }
+
+  var unstable_requestPaint = requestPaint;
+  var unstable_Profiling =  null;
+
+
+
+  var Scheduler = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    unstable_ImmediatePriority: ImmediatePriority,
+    unstable_UserBlockingPriority: UserBlockingPriority,
+    unstable_NormalPriority: NormalPriority,
+    unstable_IdlePriority: IdlePriority,
+    unstable_LowPriority: LowPriority,
+    unstable_runWithPriority: unstable_runWithPriority,
+    unstable_next: unstable_next,
+    unstable_scheduleCallback: unstable_scheduleCallback,
+    unstable_cancelCallback: unstable_cancelCallback,
+    unstable_wrapCallback: unstable_wrapCallback,
+    unstable_getCurrentPriorityLevel: unstable_getCurrentPriorityLevel,
+    get unstable_shouldYield () { return shouldYieldToHost; },
+    unstable_requestPaint: unstable_requestPaint,
+    unstable_continueExecution: unstable_continueExecution,
+    unstable_pauseExecution: unstable_pauseExecution,
+    unstable_getFirstCallbackNode: unstable_getFirstCallbackNode,
+    get unstable_now () { return getCurrentTime; },
+    get unstable_forceFrameRate () { return forceFrameRate; },
+    unstable_Profiling: unstable_Profiling
+  });
+
+  var DEFAULT_THREAD_ID = 0; // Counters used to generate unique IDs.
+
+  var interactionIDCounter = 0;
+  var threadIDCounter = 0; // Set of currently traced interactions.
+  // Interactions "stack"–
+  // Meaning that newly traced interactions are appended to the previously active set.
+  // When an interaction goes out of scope, the previous set (if any) is restored.
+
+  var interactionsRef = null; // Listener(s) to notify when interactions begin and end.
+
+  var subscriberRef = null;
+
+  {
+    interactionsRef = {
+      current: new Set()
+    };
+    subscriberRef = {
+      current: null
+    };
+  }
+  function unstable_clear(callback) {
+
+    var prevInteractions = interactionsRef.current;
+    interactionsRef.current = new Set();
+
+    try {
+      return callback();
+    } finally {
+      interactionsRef.current = prevInteractions;
+    }
+  }
+  function unstable_getCurrent() {
+    {
+      return interactionsRef.current;
+    }
+  }
+  function unstable_getThreadID() {
+    return ++threadIDCounter;
+  }
+  function unstable_trace(name, timestamp, callback) {
+    var threadID = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : DEFAULT_THREAD_ID;
+
+    var interaction = {
+      __count: 1,
+      id: interactionIDCounter++,
+      name: name,
+      timestamp: timestamp
+    };
+    var prevInteractions = interactionsRef.current; // Traced interactions should stack/accumulate.
+    // To do that, clone the current interactions.
+    // The previous set will be restored upon completion.
+
+    var interactions = new Set(prevInteractions);
+    interactions.add(interaction);
+    interactionsRef.current = interactions;
+    var subscriber = subscriberRef.current;
+    var returnValue;
+
+    try {
+      if (subscriber !== null) {
+        subscriber.onInteractionTraced(interaction);
+      }
+    } finally {
+      try {
+        if (subscriber !== null) {
+          subscriber.onWorkStarted(interactions, threadID);
+        }
+      } finally {
+        try {
+          returnValue = callback();
+        } finally {
+          interactionsRef.current = prevInteractions;
+
+          try {
+            if (subscriber !== null) {
+              subscriber.onWorkStopped(interactions, threadID);
+            }
+          } finally {
+            interaction.__count--; // If no async work was scheduled for this interaction,
+            // Notify subscribers that it's completed.
+
+            if (subscriber !== null && interaction.__count === 0) {
+              subscriber.onInteractionScheduledWorkCompleted(interaction);
+            }
+          }
+        }
+      }
+    }
+
+    return returnValue;
+  }
+  function unstable_wrap(callback) {
+    var threadID = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : DEFAULT_THREAD_ID;
+
+    var wrappedInteractions = interactionsRef.current;
+    var subscriber = subscriberRef.current;
+
+    if (subscriber !== null) {
+      subscriber.onWorkScheduled(wrappedInteractions, threadID);
+    } // Update the pending async work count for the current interactions.
+    // Update after calling subscribers in case of error.
+
+
+    wrappedInteractions.forEach(function (interaction) {
+      interaction.__count++;
+    });
+    var hasRun = false;
+
+    function wrapped() {
+      var prevInteractions = interactionsRef.current;
+      interactionsRef.current = wrappedInteractions;
+      subscriber = subscriberRef.current;
+
+      try {
+        var returnValue;
+
+        try {
+          if (subscriber !== null) {
+            subscriber.onWorkStarted(wrappedInteractions, threadID);
+          }
+        } finally {
+          try {
+            returnValue = callback.apply(undefined, arguments);
+          } finally {
+            interactionsRef.current = prevInteractions;
+
+            if (subscriber !== null) {
+              subscriber.onWorkStopped(wrappedInteractions, threadID);
+            }
+          }
+        }
+
+        return returnValue;
+      } finally {
+        if (!hasRun) {
+          // We only expect a wrapped function to be executed once,
+          // But in the event that it's executed more than once–
+          // Only decrement the outstanding interaction counts once.
+          hasRun = true; // Update pending async counts for all wrapped interactions.
+          // If this was the last scheduled async work for any of them,
+          // Mark them as completed.
+
+          wrappedInteractions.forEach(function (interaction) {
+            interaction.__count--;
+
+            if (subscriber !== null && interaction.__count === 0) {
+              subscriber.onInteractionScheduledWorkCompleted(interaction);
+            }
+          });
+        }
+      }
+    }
+
+    wrapped.cancel = function cancel() {
+      subscriber = subscriberRef.current;
+
+      try {
+        if (subscriber !== null) {
+          subscriber.onWorkCanceled(wrappedInteractions, threadID);
+        }
+      } finally {
+        // Update pending async counts for all wrapped interactions.
+        // If this was the last scheduled async work for any of them,
+        // Mark them as completed.
+        wrappedInteractions.forEach(function (interaction) {
+          interaction.__count--;
+
+          if (subscriber && interaction.__count === 0) {
+            subscriber.onInteractionScheduledWorkCompleted(interaction);
+          }
+        });
+      }
+    };
+
+    return wrapped;
+  }
+
+  var subscribers = null;
+
+  {
+    subscribers = new Set();
+  }
+
+  function unstable_subscribe(subscriber) {
+    {
+      subscribers.add(subscriber);
+
+      if (subscribers.size === 1) {
+        subscriberRef.current = {
+          onInteractionScheduledWorkCompleted: onInteractionScheduledWorkCompleted,
+          onInteractionTraced: onInteractionTraced,
+          onWorkCanceled: onWorkCanceled,
+          onWorkScheduled: onWorkScheduled,
+          onWorkStarted: onWorkStarted,
+          onWorkStopped: onWorkStopped
+        };
+      }
+    }
+  }
+  function unstable_unsubscribe(subscriber) {
+    {
+      subscribers.delete(subscriber);
+
+      if (subscribers.size === 0) {
+        subscriberRef.current = null;
+      }
+    }
+  }
+
+  function onInteractionTraced(interaction) {
+    var didCatchError = false;
+    var caughtError = null;
+    subscribers.forEach(function (subscriber) {
+      try {
+        subscriber.onInteractionTraced(interaction);
+      } catch (error) {
+        if (!didCatchError) {
+          didCatchError = true;
+          caughtError = error;
+        }
+      }
+    });
+
+    if (didCatchError) {
+      throw caughtError;
+    }
+  }
+
+  function onInteractionScheduledWorkCompleted(interaction) {
+    var didCatchError = false;
+    var caughtError = null;
+    subscribers.forEach(function (subscriber) {
+      try {
+        subscriber.onInteractionScheduledWorkCompleted(interaction);
+      } catch (error) {
+        if (!didCatchError) {
+          didCatchError = true;
+          caughtError = error;
+        }
+      }
+    });
+
+    if (didCatchError) {
+      throw caughtError;
+    }
+  }
+
+  function onWorkScheduled(interactions, threadID) {
+    var didCatchError = false;
+    var caughtError = null;
+    subscribers.forEach(function (subscriber) {
+      try {
+        subscriber.onWorkScheduled(interactions, threadID);
+      } catch (error) {
+        if (!didCatchError) {
+          didCatchError = true;
+          caughtError = error;
+        }
+      }
+    });
+
+    if (didCatchError) {
+      throw caughtError;
+    }
+  }
+
+  function onWorkStarted(interactions, threadID) {
+    var didCatchError = false;
+    var caughtError = null;
+    subscribers.forEach(function (subscriber) {
+      try {
+        subscriber.onWorkStarted(interactions, threadID);
+      } catch (error) {
+        if (!didCatchError) {
+          didCatchError = true;
+          caughtError = error;
+        }
+      }
+    });
+
+    if (didCatchError) {
+      throw caughtError;
+    }
+  }
+
+  function onWorkStopped(interactions, threadID) {
+    var didCatchError = false;
+    var caughtError = null;
+    subscribers.forEach(function (subscriber) {
+      try {
+        subscriber.onWorkStopped(interactions, threadID);
+      } catch (error) {
+        if (!didCatchError) {
+          didCatchError = true;
+          caughtError = error;
+        }
+      }
+    });
+
+    if (didCatchError) {
+      throw caughtError;
+    }
+  }
+
+  function onWorkCanceled(interactions, threadID) {
+    var didCatchError = false;
+    var caughtError = null;
+    subscribers.forEach(function (subscriber) {
+      try {
+        subscriber.onWorkCanceled(interactions, threadID);
+      } catch (error) {
+        if (!didCatchError) {
+          didCatchError = true;
+          caughtError = error;
+        }
+      }
+    });
+
+    if (didCatchError) {
+      throw caughtError;
+    }
+  }
+
+
+
+  var SchedulerTracing = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    get __interactionsRef () { return interactionsRef; },
+    get __subscriberRef () { return subscriberRef; },
+    unstable_clear: unstable_clear,
+    unstable_getCurrent: unstable_getCurrent,
+    unstable_getThreadID: unstable_getThreadID,
+    unstable_trace: unstable_trace,
+    unstable_wrap: unstable_wrap,
+    unstable_subscribe: unstable_subscribe,
+    unstable_unsubscribe: unstable_unsubscribe
+  });
+
+  var ReactSharedInternals$1 = {
+    ReactCurrentDispatcher: ReactCurrentDispatcher,
+    ReactCurrentOwner: ReactCurrentOwner,
+    IsSomeRendererActing: IsSomeRendererActing,
+    ReactCurrentBatchConfig: ReactCurrentBatchConfig,
+    // Used by renderers to avoid bundling object-assign twice in UMD bundles:
+    assign: assign,
+    // Re-export the schedule API(s) for UMD bundles.
+    // This avoids introducing a dependency on a new UMD global in a minor update,
+    // Since that would be a breaking change (e.g. for all existing CodeSandboxes).
+    // This re-export is only required for UMD bundles;
+    // CJS bundles use the shared NPM package.
+    Scheduler: Scheduler,
+    SchedulerTracing: SchedulerTracing
+  };
+
+  {
+    ReactSharedInternals$1.ReactDebugCurrentFrame = ReactDebugCurrentFrame;
+  }
+
+  {
+
+    try {
+      var frozenObject = Object.freeze({});
+      /* eslint-disable no-new */
+
+      new Map([[frozenObject, null]]);
+      new Set([frozenObject]);
+      /* eslint-enable no-new */
+    } catch (e) {
+    }
+  }
+
+  var createElement$1 =  createElementWithValidation ;
+  var cloneElement$1 =  cloneElementWithValidation ;
+  var createFactory =  createFactoryWithValidation ;
+  var Children = {
+    map: mapChildren,
+    forEach: forEachChildren,
+    count: countChildren,
+    toArray: toArray,
+    only: onlyChild
+  };
+
+  exports.Children = Children;
+  exports.Component = Component;
+  exports.PureComponent = PureComponent;
+  exports.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED = ReactSharedInternals$1;
+  exports.cloneElement = cloneElement$1;
+  exports.createContext = createContext;
+  exports.createElement = createElement$1;
+  exports.createFactory = createFactory;
+  exports.createRef = createRef;
+  exports.forwardRef = forwardRef;
+  exports.isValidElement = isValidElement;
+  exports.lazy = lazy;
+  exports.memo = memo;
+  exports.useCallback = useCallback;
+  exports.useContext = useContext;
+  exports.useDebugValue = useDebugValue;
+  exports.useEffect = useEffect;
+  exports.useImperativeHandle = useImperativeHandle;
+  exports.useLayoutEffect = useLayoutEffect;
+  exports.useMemo = useMemo;
+  exports.useReducer = useReducer;
+  exports.useRef = useRef;
+  exports.useState = useState;
+  exports.version = ReactVersion;
+
+})));
+</script>
+    <script>/** @license React v17.0.2
+ * react-dom.development.js
+ *
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('react')) :
+  typeof define === 'function' && define.amd ? define(['exports', 'react'], factory) :
+  (global = global || self, factory(global.ReactDOM = {}, global.React));
+}(this, (function (exports, React) { 'use strict';
+
+  var ReactSharedInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
+
+  // by calls to these methods by a Babel plugin.
+  //
+  // In PROD (or in packages without access to React internals),
+  // they are left as they are instead.
+
+  function warn(format) {
+    {
+      for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+        args[_key - 1] = arguments[_key];
+      }
+
+      printWarning('warn', format, args);
+    }
+  }
+  function error(format) {
+    {
+      for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
+        args[_key2 - 1] = arguments[_key2];
+      }
+
+      printWarning('error', format, args);
+    }
+  }
+
+  function printWarning(level, format, args) {
+    // When changing this logic, you might want to also
+    // update consoleWithStackDev.www.js as well.
+    {
+      var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;
+      var stack = ReactDebugCurrentFrame.getStackAddendum();
+
+      if (stack !== '') {
+        format += '%s';
+        args = args.concat([stack]);
+      }
+
+      var argsWithFormat = args.map(function (item) {
+        return '' + item;
+      }); // Careful: RN currently depends on this prefix
+
+      argsWithFormat.unshift('Warning: ' + format); // We intentionally don't use spread (or .apply) directly because it
+      // breaks IE9: https://github.com/facebook/react/issues/13610
+      // eslint-disable-next-line react-internal/no-production-logging
+
+      Function.prototype.apply.call(console[level], console, argsWithFormat);
+    }
+  }
+
+  if (!React) {
+    {
+      throw Error( "ReactDOM was loaded before React. Make sure you load the React package before loading ReactDOM." );
+    }
+  }
+
+  var FunctionComponent = 0;
+  var ClassComponent = 1;
+  var IndeterminateComponent = 2; // Before we know whether it is function or class
+
+  var HostRoot = 3; // Root of a host tree. Could be nested inside another node.
+
+  var HostPortal = 4; // A subtree. Could be an entry point to a different renderer.
+
+  var HostComponent = 5;
+  var HostText = 6;
+  var Fragment = 7;
+  var Mode = 8;
+  var ContextConsumer = 9;
+  var ContextProvider = 10;
+  var ForwardRef = 11;
+  var Profiler = 12;
+  var SuspenseComponent = 13;
+  var MemoComponent = 14;
+  var SimpleMemoComponent = 15;
+  var LazyComponent = 16;
+  var IncompleteClassComponent = 17;
+  var DehydratedFragment = 18;
+  var SuspenseListComponent = 19;
+  var FundamentalComponent = 20;
+  var ScopeComponent = 21;
+  var Block = 22;
+  var OffscreenComponent = 23;
+  var LegacyHiddenComponent = 24;
+
+  // Filter certain DOM attributes (e.g. src, href) if their values are empty strings.
+
+  var enableProfilerTimer = true; // Record durations for commit and passive effects phases.
+
+  var enableFundamentalAPI = false; // Experimental Scope support.
+  var enableNewReconciler = false; // Errors that are thrown while unmounting (or after in the case of passive effects)
+  var warnAboutStringRefs = false;
+
+  var allNativeEvents = new Set();
+  /**
+   * Mapping from registration name to event name
+   */
+
+
+  var registrationNameDependencies = {};
+  /**
+   * Mapping from lowercase registration names to the properly cased version,
+   * used to warn in the case of missing event handlers. Available
+   * only in true.
+   * @type {Object}
+   */
+
+  var possibleRegistrationNames =  {} ; // Trust the developer to only use possibleRegistrationNames in true
+
+  function registerTwoPhaseEvent(registrationName, dependencies) {
+    registerDirectEvent(registrationName, dependencies);
+    registerDirectEvent(registrationName + 'Capture', dependencies);
+  }
+  function registerDirectEvent(registrationName, dependencies) {
+    {
+      if (registrationNameDependencies[registrationName]) {
+        error('EventRegistry: More than one plugin attempted to publish the same ' + 'registration name, `%s`.', registrationName);
+      }
+    }
+
+    registrationNameDependencies[registrationName] = dependencies;
+
+    {
+      var lowerCasedName = registrationName.toLowerCase();
+      possibleRegistrationNames[lowerCasedName] = registrationName;
+
+      if (registrationName === 'onDoubleClick') {
+        possibleRegistrationNames.ondblclick = registrationName;
+      }
+    }
+
+    for (var i = 0; i < dependencies.length; i++) {
+      allNativeEvents.add(dependencies[i]);
+    }
+  }
+
+  var canUseDOM = !!(typeof window !== 'undefined' && typeof window.document !== 'undefined' && typeof window.document.createElement !== 'undefined');
+
+  // A reserved attribute.
+  // It is handled by React separately and shouldn't be written to the DOM.
+  var RESERVED = 0; // A simple string attribute.
+  // Attributes that aren't in the filter are presumed to have this type.
+
+  var STRING = 1; // A string attribute that accepts booleans in React. In HTML, these are called
+  // "enumerated" attributes with "true" and "false" as possible values.
+  // When true, it should be set to a "true" string.
+  // When false, it should be set to a "false" string.
+
+  var BOOLEANISH_STRING = 2; // A real boolean attribute.
+  // When true, it should be present (set either to an empty string or its name).
+  // When false, it should be omitted.
+
+  var BOOLEAN = 3; // An attribute that can be used as a flag as well as with a value.
+  // When true, it should be present (set either to an empty string or its name).
+  // When false, it should be omitted.
+  // For any other value, should be present with that value.
+
+  var OVERLOADED_BOOLEAN = 4; // An attribute that must be numeric or parse as a numeric.
+  // When falsy, it should be removed.
+
+  var NUMERIC = 5; // An attribute that must be positive numeric or parse as a positive numeric.
+  // When falsy, it should be removed.
+
+  var POSITIVE_NUMERIC = 6;
+
+  /* eslint-disable max-len */
+  var ATTRIBUTE_NAME_START_CHAR = ":A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD";
+  /* eslint-enable max-len */
+
+  var ATTRIBUTE_NAME_CHAR = ATTRIBUTE_NAME_START_CHAR + "\\-.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040";
+  var ROOT_ATTRIBUTE_NAME = 'data-reactroot';
+  var VALID_ATTRIBUTE_NAME_REGEX = new RegExp('^[' + ATTRIBUTE_NAME_START_CHAR + '][' + ATTRIBUTE_NAME_CHAR + ']*$');
+  var hasOwnProperty = Object.prototype.hasOwnProperty;
+  var illegalAttributeNameCache = {};
+  var validatedAttributeNameCache = {};
+  function isAttributeNameSafe(attributeName) {
+    if (hasOwnProperty.call(validatedAttributeNameCache, attributeName)) {
+      return true;
+    }
+
+    if (hasOwnProperty.call(illegalAttributeNameCache, attributeName)) {
+      return false;
+    }
+
+    if (VALID_ATTRIBUTE_NAME_REGEX.test(attributeName)) {
+      validatedAttributeNameCache[attributeName] = true;
+      return true;
+    }
+
+    illegalAttributeNameCache[attributeName] = true;
+
+    {
+      error('Invalid attribute name: `%s`', attributeName);
+    }
+
+    return false;
+  }
+  function shouldIgnoreAttribute(name, propertyInfo, isCustomComponentTag) {
+    if (propertyInfo !== null) {
+      return propertyInfo.type === RESERVED;
+    }
+
+    if (isCustomComponentTag) {
+      return false;
+    }
+
+    if (name.length > 2 && (name[0] === 'o' || name[0] === 'O') && (name[1] === 'n' || name[1] === 'N')) {
+      return true;
+    }
+
+    return false;
+  }
+  function shouldRemoveAttributeWithWarning(name, value, propertyInfo, isCustomComponentTag) {
+    if (propertyInfo !== null && propertyInfo.type === RESERVED) {
+      return false;
+    }
+
+    switch (typeof value) {
+      case 'function': // $FlowIssue symbol is perfectly valid here
+
+      case 'symbol':
+        // eslint-disable-line
+        return true;
+
+      case 'boolean':
+        {
+          if (isCustomComponentTag) {
+            return false;
+          }
+
+          if (propertyInfo !== null) {
+            return !propertyInfo.acceptsBooleans;
+          } else {
+            var prefix = name.toLowerCase().slice(0, 5);
+            return prefix !== 'data-' && prefix !== 'aria-';
+          }
+        }
+
+      default:
+        return false;
+    }
+  }
+  function shouldRemoveAttribute(name, value, propertyInfo, isCustomComponentTag) {
+    if (value === null || typeof value === 'undefined') {
+      return true;
+    }
+
+    if (shouldRemoveAttributeWithWarning(name, value, propertyInfo, isCustomComponentTag)) {
+      return true;
+    }
+
+    if (isCustomComponentTag) {
+      return false;
+    }
+
+    if (propertyInfo !== null) {
+
+      switch (propertyInfo.type) {
+        case BOOLEAN:
+          return !value;
+
+        case OVERLOADED_BOOLEAN:
+          return value === false;
+
+        case NUMERIC:
+          return isNaN(value);
+
+        case POSITIVE_NUMERIC:
+          return isNaN(value) || value < 1;
+      }
+    }
+
+    return false;
+  }
+  function getPropertyInfo(name) {
+    return properties.hasOwnProperty(name) ? properties[name] : null;
+  }
+
+  function PropertyInfoRecord(name, type, mustUseProperty, attributeName, attributeNamespace, sanitizeURL, removeEmptyString) {
+    this.acceptsBooleans = type === BOOLEANISH_STRING || type === BOOLEAN || type === OVERLOADED_BOOLEAN;
+    this.attributeName = attributeName;
+    this.attributeNamespace = attributeNamespace;
+    this.mustUseProperty = mustUseProperty;
+    this.propertyName = name;
+    this.type = type;
+    this.sanitizeURL = sanitizeURL;
+    this.removeEmptyString = removeEmptyString;
+  } // When adding attributes to this list, be sure to also add them to
+  // the `possibleStandardNames` module to ensure casing and incorrect
+  // name warnings.
+
+
+  var properties = {}; // These props are reserved by React. They shouldn't be written to the DOM.
+
+  var reservedProps = ['children', 'dangerouslySetInnerHTML', // TODO: This prevents the assignment of defaultValue to regular
+  // elements (not just inputs). Now that ReactDOMInput assigns to the
+  // defaultValue property -- do we need this?
+  'defaultValue', 'defaultChecked', 'innerHTML', 'suppressContentEditableWarning', 'suppressHydrationWarning', 'style'];
+  reservedProps.forEach(function (name) {
+    properties[name] = new PropertyInfoRecord(name, RESERVED, false, // mustUseProperty
+    name, // attributeName
+    null, // attributeNamespace
+    false, // sanitizeURL
+    false);
+  }); // A few React string attributes have a different name.
+  // This is a mapping from React prop names to the attribute names.
+
+  [['acceptCharset', 'accept-charset'], ['className', 'class'], ['htmlFor', 'for'], ['httpEquiv', 'http-equiv']].forEach(function (_ref) {
+    var name = _ref[0],
+        attributeName = _ref[1];
+    properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
+    attributeName, // attributeName
+    null, // attributeNamespace
+    false, // sanitizeURL
+    false);
+  }); // These are "enumerated" HTML attributes that accept "true" and "false".
+  // In React, we let users pass `true` and `false` even though technically
+  // these aren't boolean attributes (they are coerced to strings).
+
+  ['contentEditable', 'draggable', 'spellCheck', 'value'].forEach(function (name) {
+    properties[name] = new PropertyInfoRecord(name, BOOLEANISH_STRING, false, // mustUseProperty
+    name.toLowerCase(), // attributeName
+    null, // attributeNamespace
+    false, // sanitizeURL
+    false);
+  }); // These are "enumerated" SVG attributes that accept "true" and "false".
+  // In React, we let users pass `true` and `false` even though technically
+  // these aren't boolean attributes (they are coerced to strings).
+  // Since these are SVG attributes, their attribute names are case-sensitive.
+
+  ['autoReverse', 'externalResourcesRequired', 'focusable', 'preserveAlpha'].forEach(function (name) {
+    properties[name] = new PropertyInfoRecord(name, BOOLEANISH_STRING, false, // mustUseProperty
+    name, // attributeName
+    null, // attributeNamespace
+    false, // sanitizeURL
+    false);
+  }); // These are HTML boolean attributes.
+
+  ['allowFullScreen', 'async', // Note: there is a special case that prevents it from being written to the DOM
+  // on the client side because the browsers are inconsistent. Instead we call focus().
+  'autoFocus', 'autoPlay', 'controls', 'default', 'defer', 'disabled', 'disablePictureInPicture', 'disableRemotePlayback', 'formNoValidate', 'hidden', 'loop', 'noModule', 'noValidate', 'open', 'playsInline', 'readOnly', 'required', 'reversed', 'scoped', 'seamless', // Microdata
+  'itemScope'].forEach(function (name) {
+    properties[name] = new PropertyInfoRecord(name, BOOLEAN, false, // mustUseProperty
+    name.toLowerCase(), // attributeName
+    null, // attributeNamespace
+    false, // sanitizeURL
+    false);
+  }); // These are the few React props that we set as DOM properties
+  // rather than attributes. These are all booleans.
+
+  ['checked', // Note: `option.selected` is not updated if `select.multiple` is
+  // disabled with `removeAttribute`. We have special logic for handling this.
+  'multiple', 'muted', 'selected' // NOTE: if you add a camelCased prop to this list,
+  // you'll need to set attributeName to name.toLowerCase()
+  // instead in the assignment below.
+  ].forEach(function (name) {
+    properties[name] = new PropertyInfoRecord(name, BOOLEAN, true, // mustUseProperty
+    name, // attributeName
+    null, // attributeNamespace
+    false, // sanitizeURL
+    false);
+  }); // These are HTML attributes that are "overloaded booleans": they behave like
+  // booleans, but can also accept a string value.
+
+  ['capture', 'download' // NOTE: if you add a camelCased prop to this list,
+  // you'll need to set attributeName to name.toLowerCase()
+  // instead in the assignment below.
+  ].forEach(function (name) {
+    properties[name] = new PropertyInfoRecord(name, OVERLOADED_BOOLEAN, false, // mustUseProperty
+    name, // attributeName
+    null, // attributeNamespace
+    false, // sanitizeURL
+    false);
+  }); // These are HTML attributes that must be positive numbers.
+
+  ['cols', 'rows', 'size', 'span' // NOTE: if you add a camelCased prop to this list,
+  // you'll need to set attributeName to name.toLowerCase()
+  // instead in the assignment below.
+  ].forEach(function (name) {
+    properties[name] = new PropertyInfoRecord(name, POSITIVE_NUMERIC, false, // mustUseProperty
+    name, // attributeName
+    null, // attributeNamespace
+    false, // sanitizeURL
+    false);
+  }); // These are HTML attributes that must be numbers.
+
+  ['rowSpan', 'start'].forEach(function (name) {
+    properties[name] = new PropertyInfoRecord(name, NUMERIC, false, // mustUseProperty
+    name.toLowerCase(), // attributeName
+    null, // attributeNamespace
+    false, // sanitizeURL
+    false);
+  });
+  var CAMELIZE = /[\-\:]([a-z])/g;
+
+  var capitalize = function (token) {
+    return token[1].toUpperCase();
+  }; // This is a list of all SVG attributes that need special casing, namespacing,
+  // or boolean value assignment. Regular attributes that just accept strings
+  // and have the same names are omitted, just like in the HTML attribute filter.
+  // Some of these attributes can be hard to find. This list was created by
+  // scraping the MDN documentation.
+
+
+  ['accent-height', 'alignment-baseline', 'arabic-form', 'baseline-shift', 'cap-height', 'clip-path', 'clip-rule', 'color-interpolation', 'color-interpolation-filters', 'color-profile', 'color-rendering', 'dominant-baseline', 'enable-background', 'fill-opacity', 'fill-rule', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'glyph-name', 'glyph-orientation-horizontal', 'glyph-orientation-vertical', 'horiz-adv-x', 'horiz-origin-x', 'image-rendering', 'letter-spacing', 'lighting-color', 'marker-end', 'marker-mid', 'marker-start', 'overline-position', 'overline-thickness', 'paint-order', 'panose-1', 'pointer-events', 'rendering-intent', 'shape-rendering', 'stop-color', 'stop-opacity', 'strikethrough-position', 'strikethrough-thickness', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke-width', 'text-anchor', 'text-decoration', 'text-rendering', 'underline-position', 'underline-thickness', 'unicode-bidi', 'unicode-range', 'units-per-em', 'v-alphabetic', 'v-hanging', 'v-ideographic', 'v-mathematical', 'vector-effect', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'word-spacing', 'writing-mode', 'xmlns:xlink', 'x-height' // NOTE: if you add a camelCased prop to this list,
+  // you'll need to set attributeName to name.toLowerCase()
+  // instead in the assignment below.
+  ].forEach(function (attributeName) {
+    var name = attributeName.replace(CAMELIZE, capitalize);
+    properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
+    attributeName, null, // attributeNamespace
+    false, // sanitizeURL
+    false);
+  }); // String SVG attributes with the xlink namespace.
+
+  ['xlink:actuate', 'xlink:arcrole', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type' // NOTE: if you add a camelCased prop to this list,
+  // you'll need to set attributeName to name.toLowerCase()
+  // instead in the assignment below.
+  ].forEach(function (attributeName) {
+    var name = attributeName.replace(CAMELIZE, capitalize);
+    properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
+    attributeName, 'http://www.w3.org/1999/xlink', false, // sanitizeURL
+    false);
+  }); // String SVG attributes with the xml namespace.
+
+  ['xml:base', 'xml:lang', 'xml:space' // NOTE: if you add a camelCased prop to this list,
+  // you'll need to set attributeName to name.toLowerCase()
+  // instead in the assignment below.
+  ].forEach(function (attributeName) {
+    var name = attributeName.replace(CAMELIZE, capitalize);
+    properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
+    attributeName, 'http://www.w3.org/XML/1998/namespace', false, // sanitizeURL
+    false);
+  }); // These attribute exists both in HTML and SVG.
+  // The attribute name is case-sensitive in SVG so we can't just use
+  // the React name like we do for attributes that exist only in HTML.
+
+  ['tabIndex', 'crossOrigin'].forEach(function (attributeName) {
+    properties[attributeName] = new PropertyInfoRecord(attributeName, STRING, false, // mustUseProperty
+    attributeName.toLowerCase(), // attributeName
+    null, // attributeNamespace
+    false, // sanitizeURL
+    false);
+  }); // These attributes accept URLs. These must not allow javascript: URLS.
+  // These will also need to accept Trusted Types object in the future.
+
+  var xlinkHref = 'xlinkHref';
+  properties[xlinkHref] = new PropertyInfoRecord('xlinkHref', STRING, false, // mustUseProperty
+  'xlink:href', 'http://www.w3.org/1999/xlink', true, // sanitizeURL
+  false);
+  ['src', 'href', 'action', 'formAction'].forEach(function (attributeName) {
+    properties[attributeName] = new PropertyInfoRecord(attributeName, STRING, false, // mustUseProperty
+    attributeName.toLowerCase(), // attributeName
+    null, // attributeNamespace
+    true, // sanitizeURL
+    true);
+  });
+
+  // and any newline or tab are filtered out as if they're not part of the URL.
+  // https://url.spec.whatwg.org/#url-parsing
+  // Tab or newline are defined as \r\n\t:
+  // https://infra.spec.whatwg.org/#ascii-tab-or-newline
+  // A C0 control is a code point in the range \u0000 NULL to \u001F
+  // INFORMATION SEPARATOR ONE, inclusive:
+  // https://infra.spec.whatwg.org/#c0-control-or-space
+
+  /* eslint-disable max-len */
+
+  var isJavaScriptProtocol = /^[\u0000-\u001F ]*j[\r\n\t]*a[\r\n\t]*v[\r\n\t]*a[\r\n\t]*s[\r\n\t]*c[\r\n\t]*r[\r\n\t]*i[\r\n\t]*p[\r\n\t]*t[\r\n\t]*\:/i;
+  var didWarn = false;
+
+  function sanitizeURL(url) {
+    {
+      if (!didWarn && isJavaScriptProtocol.test(url)) {
+        didWarn = true;
+
+        error('A future version of React will block javascript: URLs as a security precaution. ' + 'Use event handlers instead if you can. If you need to generate unsafe HTML try ' + 'using dangerouslySetInnerHTML instead. React was passed %s.', JSON.stringify(url));
+      }
+    }
+  }
+
+  /**
+   * Get the value for a property on a node. Only used in DEV for SSR validation.
+   * The "expected" argument is used as a hint of what the expected value is.
+   * Some properties have multiple equivalent values.
+   */
+  function getValueForProperty(node, name, expected, propertyInfo) {
+    {
+      if (propertyInfo.mustUseProperty) {
+        var propertyName = propertyInfo.propertyName;
+        return node[propertyName];
+      } else {
+        if ( propertyInfo.sanitizeURL) {
+          // If we haven't fully disabled javascript: URLs, and if
+          // the hydration is successful of a javascript: URL, we
+          // still want to warn on the client.
+          sanitizeURL('' + expected);
+        }
+
+        var attributeName = propertyInfo.attributeName;
+        var stringValue = null;
+
+        if (propertyInfo.type === OVERLOADED_BOOLEAN) {
+          if (node.hasAttribute(attributeName)) {
+            var value = node.getAttribute(attributeName);
+
+            if (value === '') {
+              return true;
+            }
+
+            if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {
+              return value;
+            }
+
+            if (value === '' + expected) {
+              return expected;
+            }
+
+            return value;
+          }
+        } else if (node.hasAttribute(attributeName)) {
+          if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {
+            // We had an attribute but shouldn't have had one, so read it
+            // for the error message.
+            return node.getAttribute(attributeName);
+          }
+
+          if (propertyInfo.type === BOOLEAN) {
+            // If this was a boolean, it doesn't matter what the value is
+            // the fact that we have it is the same as the expected.
+            return expected;
+          } // Even if this property uses a namespace we use getAttribute
+          // because we assume its namespaced name is the same as our config.
+          // To use getAttributeNS we need the local name which we don't have
+          // in our config atm.
+
+
+          stringValue = node.getAttribute(attributeName);
+        }
+
+        if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {
+          return stringValue === null ? expected : stringValue;
+        } else if (stringValue === '' + expected) {
+          return expected;
+        } else {
+          return stringValue;
+        }
+      }
+    }
+  }
+  /**
+   * Get the value for a attribute on a node. Only used in DEV for SSR validation.
+   * The third argument is used as a hint of what the expected value is. Some
+   * attributes have multiple equivalent values.
+   */
+
+  function getValueForAttribute(node, name, expected) {
+    {
+      if (!isAttributeNameSafe(name)) {
+        return;
+      } // If the object is an opaque reference ID, it's expected that
+      // the next prop is different than the server value, so just return
+      // expected
+
+
+      if (isOpaqueHydratingObject(expected)) {
+        return expected;
+      }
+
+      if (!node.hasAttribute(name)) {
+        return expected === undefined ? undefined : null;
+      }
+
+      var value = node.getAttribute(name);
+
+      if (value === '' + expected) {
+        return expected;
+      }
+
+      return value;
+    }
+  }
+  /**
+   * Sets the value for a property on a node.
+   *
+   * @param {DOMElement} node
+   * @param {string} name
+   * @param {*} value
+   */
+
+  function setValueForProperty(node, name, value, isCustomComponentTag) {
+    var propertyInfo = getPropertyInfo(name);
+
+    if (shouldIgnoreAttribute(name, propertyInfo, isCustomComponentTag)) {
+      return;
+    }
+
+    if (shouldRemoveAttribute(name, value, propertyInfo, isCustomComponentTag)) {
+      value = null;
+    } // If the prop isn't in the special list, treat it as a simple attribute.
+
+
+    if (isCustomComponentTag || propertyInfo === null) {
+      if (isAttributeNameSafe(name)) {
+        var _attributeName = name;
+
+        if (value === null) {
+          node.removeAttribute(_attributeName);
+        } else {
+          node.setAttribute(_attributeName,  '' + value);
+        }
+      }
+
+      return;
+    }
+
+    var mustUseProperty = propertyInfo.mustUseProperty;
+
+    if (mustUseProperty) {
+      var propertyName = propertyInfo.propertyName;
+
+      if (value === null) {
+        var type = propertyInfo.type;
+        node[propertyName] = type === BOOLEAN ? false : '';
+      } else {
+        // Contrary to `setAttribute`, object properties are properly
+        // `toString`ed by IE8/9.
+        node[propertyName] = value;
+      }
+
+      return;
+    } // The rest are treated as attributes with special cases.
+
+
+    var attributeName = propertyInfo.attributeName,
+        attributeNamespace = propertyInfo.attributeNamespace;
+
+    if (value === null) {
+      node.removeAttribute(attributeName);
+    } else {
+      var _type = propertyInfo.type;
+      var attributeValue;
+
+      if (_type === BOOLEAN || _type === OVERLOADED_BOOLEAN && value === true) {
+        // If attribute type is boolean, we know for sure it won't be an execution sink
+        // and we won't require Trusted Type here.
+        attributeValue = '';
+      } else {
+        // `setAttribute` with objects becomes only `[object]` in IE8/9,
+        // ('' + value) makes it output the correct toString()-value.
+        {
+          attributeValue = '' + value;
+        }
+
+        if (propertyInfo.sanitizeURL) {
+          sanitizeURL(attributeValue.toString());
+        }
+      }
+
+      if (attributeNamespace) {
+        node.setAttributeNS(attributeNamespace, attributeName, attributeValue);
+      } else {
+        node.setAttribute(attributeName, attributeValue);
+      }
+    }
+  }
+
+  var ReactInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
+  var _assign = ReactInternals.assign;
+
+  // ATTENTION
+  // When adding new symbols to this file,
+  // Please consider also adding to 'react-devtools-shared/src/backend/ReactSymbols'
+  // The Symbol used to tag the ReactElement-like types. If there is no native Symbol
+  // nor polyfill, then a plain number is used for performance.
+  var REACT_ELEMENT_TYPE = 0xeac7;
+  var REACT_PORTAL_TYPE = 0xeaca;
+  var REACT_FRAGMENT_TYPE = 0xeacb;
+  var REACT_STRICT_MODE_TYPE = 0xeacc;
+  var REACT_PROFILER_TYPE = 0xead2;
+  var REACT_PROVIDER_TYPE = 0xeacd;
+  var REACT_CONTEXT_TYPE = 0xeace;
+  var REACT_FORWARD_REF_TYPE = 0xead0;
+  var REACT_SUSPENSE_TYPE = 0xead1;
+  var REACT_SUSPENSE_LIST_TYPE = 0xead8;
+  var REACT_MEMO_TYPE = 0xead3;
+  var REACT_LAZY_TYPE = 0xead4;
+  var REACT_BLOCK_TYPE = 0xead9;
+  var REACT_SERVER_BLOCK_TYPE = 0xeada;
+  var REACT_FUNDAMENTAL_TYPE = 0xead5;
+  var REACT_SCOPE_TYPE = 0xead7;
+  var REACT_OPAQUE_ID_TYPE = 0xeae0;
+  var REACT_DEBUG_TRACING_MODE_TYPE = 0xeae1;
+  var REACT_OFFSCREEN_TYPE = 0xeae2;
+  var REACT_LEGACY_HIDDEN_TYPE = 0xeae3;
+
+  if (typeof Symbol === 'function' && Symbol.for) {
+    var symbolFor = Symbol.for;
+    REACT_ELEMENT_TYPE = symbolFor('react.element');
+    REACT_PORTAL_TYPE = symbolFor('react.portal');
+    REACT_FRAGMENT_TYPE = symbolFor('react.fragment');
+    REACT_STRICT_MODE_TYPE = symbolFor('react.strict_mode');
+    REACT_PROFILER_TYPE = symbolFor('react.profiler');
+    REACT_PROVIDER_TYPE = symbolFor('react.provider');
+    REACT_CONTEXT_TYPE = symbolFor('react.context');
+    REACT_FORWARD_REF_TYPE = symbolFor('react.forward_ref');
+    REACT_SUSPENSE_TYPE = symbolFor('react.suspense');
+    REACT_SUSPENSE_LIST_TYPE = symbolFor('react.suspense_list');
+    REACT_MEMO_TYPE = symbolFor('react.memo');
+    REACT_LAZY_TYPE = symbolFor('react.lazy');
+    REACT_BLOCK_TYPE = symbolFor('react.block');
+    REACT_SERVER_BLOCK_TYPE = symbolFor('react.server.block');
+    REACT_FUNDAMENTAL_TYPE = symbolFor('react.fundamental');
+    REACT_SCOPE_TYPE = symbolFor('react.scope');
+    REACT_OPAQUE_ID_TYPE = symbolFor('react.opaque.id');
+    REACT_DEBUG_TRACING_MODE_TYPE = symbolFor('react.debug_trace_mode');
+    REACT_OFFSCREEN_TYPE = symbolFor('react.offscreen');
+    REACT_LEGACY_HIDDEN_TYPE = symbolFor('react.legacy_hidden');
+  }
+
+  var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
+  var FAUX_ITERATOR_SYMBOL = '@@iterator';
+  function getIteratorFn(maybeIterable) {
+    if (maybeIterable === null || typeof maybeIterable !== 'object') {
+      return null;
+    }
+
+    var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];
+
+    if (typeof maybeIterator === 'function') {
+      return maybeIterator;
+    }
+
+    return null;
+  }
+
+  // Helpers to patch console.logs to avoid logging during side-effect free
+  // replaying on render function. This currently only patches the object
+  // lazily which won't cover if the log function was extracted eagerly.
+  // We could also eagerly patch the method.
+  var disabledDepth = 0;
+  var prevLog;
+  var prevInfo;
+  var prevWarn;
+  var prevError;
+  var prevGroup;
+  var prevGroupCollapsed;
+  var prevGroupEnd;
+
+  function disabledLog() {}
+
+  disabledLog.__reactDisabledLog = true;
+  function disableLogs() {
+    {
+      if (disabledDepth === 0) {
+        /* eslint-disable react-internal/no-production-logging */
+        prevLog = console.log;
+        prevInfo = console.info;
+        prevWarn = console.warn;
+        prevError = console.error;
+        prevGroup = console.group;
+        prevGroupCollapsed = console.groupCollapsed;
+        prevGroupEnd = console.groupEnd; // https://github.com/facebook/react/issues/19099
+
+        var props = {
+          configurable: true,
+          enumerable: true,
+          value: disabledLog,
+          writable: true
+        }; // $FlowFixMe Flow thinks console is immutable.
+
+        Object.defineProperties(console, {
+          info: props,
+          log: props,
+          warn: props,
+          error: props,
+          group: props,
+          groupCollapsed: props,
+          groupEnd: props
+        });
+        /* eslint-enable react-internal/no-production-logging */
+      }
+
+      disabledDepth++;
+    }
+  }
+  function reenableLogs() {
+    {
+      disabledDepth--;
+
+      if (disabledDepth === 0) {
+        /* eslint-disable react-internal/no-production-logging */
+        var props = {
+          configurable: true,
+          enumerable: true,
+          writable: true
+        }; // $FlowFixMe Flow thinks console is immutable.
+
+        Object.defineProperties(console, {
+          log: _assign({}, props, {
+            value: prevLog
+          }),
+          info: _assign({}, props, {
+            value: prevInfo
+          }),
+          warn: _assign({}, props, {
+            value: prevWarn
+          }),
+          error: _assign({}, props, {
+            value: prevError
+          }),
+          group: _assign({}, props, {
+            value: prevGroup
+          }),
+          groupCollapsed: _assign({}, props, {
+            value: prevGroupCollapsed
+          }),
+          groupEnd: _assign({}, props, {
+            value: prevGroupEnd
+          })
+        });
+        /* eslint-enable react-internal/no-production-logging */
+      }
+
+      if (disabledDepth < 0) {
+        error('disabledDepth fell below zero. ' + 'This is a bug in React. Please file an issue.');
+      }
+    }
+  }
+
+  var ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher;
+  var prefix;
+  function describeBuiltInComponentFrame(name, source, ownerFn) {
+    {
+      if (prefix === undefined) {
+        // Extract the VM specific prefix used by each line.
+        try {
+          throw Error();
+        } catch (x) {
+          var match = x.stack.trim().match(/\n( *(at )?)/);
+          prefix = match && match[1] || '';
+        }
+      } // We use the prefix to ensure our stacks line up with native stack frames.
+
+
+      return '\n' + prefix + name;
+    }
+  }
+  var reentry = false;
+  var componentFrameCache;
+
+  {
+    var PossiblyWeakMap = typeof WeakMap === 'function' ? WeakMap : Map;
+    componentFrameCache = new PossiblyWeakMap();
+  }
+
+  function describeNativeComponentFrame(fn, construct) {
+    // If something asked for a stack inside a fake render, it should get ignored.
+    if (!fn || reentry) {
+      return '';
+    }
+
+    {
+      var frame = componentFrameCache.get(fn);
+
+      if (frame !== undefined) {
+        return frame;
+      }
+    }
+
+    var control;
+    reentry = true;
+    var previousPrepareStackTrace = Error.prepareStackTrace; // $FlowFixMe It does accept undefined.
+
+    Error.prepareStackTrace = undefined;
+    var previousDispatcher;
+
+    {
+      previousDispatcher = ReactCurrentDispatcher.current; // Set the dispatcher in DEV because this might be call in the render function
+      // for warnings.
+
+      ReactCurrentDispatcher.current = null;
+      disableLogs();
+    }
+
+    try {
+      // This should throw.
+      if (construct) {
+        // Something should be setting the props in the constructor.
+        var Fake = function () {
+          throw Error();
+        }; // $FlowFixMe
+
+
+        Object.defineProperty(Fake.prototype, 'props', {
+          set: function () {
+            // We use a throwing setter instead of frozen or non-writable props
+            // because that won't throw in a non-strict mode function.
+            throw Error();
+          }
+        });
+
+        if (typeof Reflect === 'object' && Reflect.construct) {
+          // We construct a different control for this case to include any extra
+          // frames added by the construct call.
+          try {
+            Reflect.construct(Fake, []);
+          } catch (x) {
+            control = x;
+          }
+
+          Reflect.construct(fn, [], Fake);
+        } else {
+          try {
+            Fake.call();
+          } catch (x) {
+            control = x;
+          }
+
+          fn.call(Fake.prototype);
+        }
+      } else {
+        try {
+          throw Error();
+        } catch (x) {
+          control = x;
+        }
+
+        fn();
+      }
+    } catch (sample) {
+      // This is inlined manually because closure doesn't do it for us.
+      if (sample && control && typeof sample.stack === 'string') {
+        // This extracts the first frame from the sample that isn't also in the control.
+        // Skipping one frame that we assume is the frame that calls the two.
+        var sampleLines = sample.stack.split('\n');
+        var controlLines = control.stack.split('\n');
+        var s = sampleLines.length - 1;
+        var c = controlLines.length - 1;
+
+        while (s >= 1 && c >= 0 && sampleLines[s] !== controlLines[c]) {
+          // We expect at least one stack frame to be shared.
+          // Typically this will be the root most one. However, stack frames may be
+          // cut off due to maximum stack limits. In this case, one maybe cut off
+          // earlier than the other. We assume that the sample is longer or the same
+          // and there for cut off earlier. So we should find the root most frame in
+          // the sample somewhere in the control.
+          c--;
+        }
+
+        for (; s >= 1 && c >= 0; s--, c--) {
+          // Next we find the first one that isn't the same which should be the
+          // frame that called our sample function and the control.
+          if (sampleLines[s] !== controlLines[c]) {
+            // In V8, the first line is describing the message but other VMs don't.
+            // If we're about to return the first line, and the control is also on the same
+            // line, that's a pretty good indicator that our sample threw at same line as
+            // the control. I.e. before we entered the sample frame. So we ignore this result.
+            // This can happen if you passed a class to function component, or non-function.
+            if (s !== 1 || c !== 1) {
+              do {
+                s--;
+                c--; // We may still have similar intermediate frames from the construct call.
+                // The next one that isn't the same should be our match though.
+
+                if (c < 0 || sampleLines[s] !== controlLines[c]) {
+                  // V8 adds a "new" prefix for native classes. Let's remove it to make it prettier.
+                  var _frame = '\n' + sampleLines[s].replace(' at new ', ' at ');
+
+                  {
+                    if (typeof fn === 'function') {
+                      componentFrameCache.set(fn, _frame);
+                    }
+                  } // Return the line we found.
+
+
+                  return _frame;
+                }
+              } while (s >= 1 && c >= 0);
+            }
+
+            break;
+          }
+        }
+      }
+    } finally {
+      reentry = false;
+
+      {
+        ReactCurrentDispatcher.current = previousDispatcher;
+        reenableLogs();
+      }
+
+      Error.prepareStackTrace = previousPrepareStackTrace;
+    } // Fallback to just using the name if we couldn't make it throw.
+
+
+    var name = fn ? fn.displayName || fn.name : '';
+    var syntheticFrame = name ? describeBuiltInComponentFrame(name) : '';
+
+    {
+      if (typeof fn === 'function') {
+        componentFrameCache.set(fn, syntheticFrame);
+      }
+    }
+
+    return syntheticFrame;
+  }
+
+  function describeClassComponentFrame(ctor, source, ownerFn) {
+    {
+      return describeNativeComponentFrame(ctor, true);
+    }
+  }
+  function describeFunctionComponentFrame(fn, source, ownerFn) {
+    {
+      return describeNativeComponentFrame(fn, false);
+    }
+  }
+
+  function shouldConstruct(Component) {
+    var prototype = Component.prototype;
+    return !!(prototype && prototype.isReactComponent);
+  }
+
+  function describeUnknownElementTypeFrameInDEV(type, source, ownerFn) {
+
+    if (type == null) {
+      return '';
+    }
+
+    if (typeof type === 'function') {
+      {
+        return describeNativeComponentFrame(type, shouldConstruct(type));
+      }
+    }
+
+    if (typeof type === 'string') {
+      return describeBuiltInComponentFrame(type);
+    }
+
+    switch (type) {
+      case REACT_SUSPENSE_TYPE:
+        return describeBuiltInComponentFrame('Suspense');
+
+      case REACT_SUSPENSE_LIST_TYPE:
+        return describeBuiltInComponentFrame('SuspenseList');
+    }
+
+    if (typeof type === 'object') {
+      switch (type.$$typeof) {
+        case REACT_FORWARD_REF_TYPE:
+          return describeFunctionComponentFrame(type.render);
+
+        case REACT_MEMO_TYPE:
+          // Memo may contain any component type so we recursively resolve it.
+          return describeUnknownElementTypeFrameInDEV(type.type, source, ownerFn);
+
+        case REACT_BLOCK_TYPE:
+          return describeFunctionComponentFrame(type._render);
+
+        case REACT_LAZY_TYPE:
+          {
+            var lazyComponent = type;
+            var payload = lazyComponent._payload;
+            var init = lazyComponent._init;
+
+            try {
+              // Lazy may contain any component type so we recursively resolve it.
+              return describeUnknownElementTypeFrameInDEV(init(payload), source, ownerFn);
+            } catch (x) {}
+          }
+      }
+    }
+
+    return '';
+  }
+
+  function describeFiber(fiber) {
+    var owner =  fiber._debugOwner ? fiber._debugOwner.type : null ;
+    var source =  fiber._debugSource ;
+
+    switch (fiber.tag) {
+      case HostComponent:
+        return describeBuiltInComponentFrame(fiber.type);
+
+      case LazyComponent:
+        return describeBuiltInComponentFrame('Lazy');
+
+      case SuspenseComponent:
+        return describeBuiltInComponentFrame('Suspense');
+
+      case SuspenseListComponent:
+        return describeBuiltInComponentFrame('SuspenseList');
+
+      case FunctionComponent:
+      case IndeterminateComponent:
+      case SimpleMemoComponent:
+        return describeFunctionComponentFrame(fiber.type);
+
+      case ForwardRef:
+        return describeFunctionComponentFrame(fiber.type.render);
+
+      case Block:
+        return describeFunctionComponentFrame(fiber.type._render);
+
+      case ClassComponent:
+        return describeClassComponentFrame(fiber.type);
+
+      default:
+        return '';
+    }
+  }
+
+  function getStackByFiberInDevAndProd(workInProgress) {
+    try {
+      var info = '';
+      var node = workInProgress;
+
+      do {
+        info += describeFiber(node);
+        node = node.return;
+      } while (node);
+
+      return info;
+    } catch (x) {
+      return '\nError generating stack: ' + x.message + '\n' + x.stack;
+    }
+  }
+
+  function getWrappedName(outerType, innerType, wrapperName) {
+    var functionName = innerType.displayName || innerType.name || '';
+    return outerType.displayName || (functionName !== '' ? wrapperName + "(" + functionName + ")" : wrapperName);
+  }
+
+  function getContextName(type) {
+    return type.displayName || 'Context';
+  }
+
+  function getComponentName(type) {
+    if (type == null) {
+      // Host root, text node or just invalid type.
+      return null;
+    }
+
+    {
+      if (typeof type.tag === 'number') {
+        error('Received an unexpected object in getComponentName(). ' + 'This is likely a bug in React. Please file an issue.');
+      }
+    }
+
+    if (typeof type === 'function') {
+      return type.displayName || type.name || null;
+    }
+
+    if (typeof type === 'string') {
+      return type;
+    }
+
+    switch (type) {
+      case REACT_FRAGMENT_TYPE:
+        return 'Fragment';
+
+      case REACT_PORTAL_TYPE:
+        return 'Portal';
+
+      case REACT_PROFILER_TYPE:
+        return 'Profiler';
+
+      case REACT_STRICT_MODE_TYPE:
+        return 'StrictMode';
+
+      case REACT_SUSPENSE_TYPE:
+        return 'Suspense';
+
+      case REACT_SUSPENSE_LIST_TYPE:
+        return 'SuspenseList';
+    }
+
+    if (typeof type === 'object') {
+      switch (type.$$typeof) {
+        case REACT_CONTEXT_TYPE:
+          var context = type;
+          return getContextName(context) + '.Consumer';
+
+        case REACT_PROVIDER_TYPE:
+          var provider = type;
+          return getContextName(provider._context) + '.Provider';
+
+        case REACT_FORWARD_REF_TYPE:
+          return getWrappedName(type, type.render, 'ForwardRef');
+
+        case REACT_MEMO_TYPE:
+          return getComponentName(type.type);
+
+        case REACT_BLOCK_TYPE:
+          return getComponentName(type._render);
+
+        case REACT_LAZY_TYPE:
+          {
+            var lazyComponent = type;
+            var payload = lazyComponent._payload;
+            var init = lazyComponent._init;
+
+            try {
+              return getComponentName(init(payload));
+            } catch (x) {
+              return null;
+            }
+          }
+      }
+    }
+
+    return null;
+  }
+
+  var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;
+  var current = null;
+  var isRendering = false;
+  function getCurrentFiberOwnerNameInDevOrNull() {
+    {
+      if (current === null) {
+        return null;
+      }
+
+      var owner = current._debugOwner;
+
+      if (owner !== null && typeof owner !== 'undefined') {
+        return getComponentName(owner.type);
+      }
+    }
+
+    return null;
+  }
+
+  function getCurrentFiberStackInDev() {
+    {
+      if (current === null) {
+        return '';
+      } // Safe because if current fiber exists, we are reconciling,
+      // and it is guaranteed to be the work-in-progress version.
+
+
+      return getStackByFiberInDevAndProd(current);
+    }
+  }
+
+  function resetCurrentFiber() {
+    {
+      ReactDebugCurrentFrame.getCurrentStack = null;
+      current = null;
+      isRendering = false;
+    }
+  }
+  function setCurrentFiber(fiber) {
+    {
+      ReactDebugCurrentFrame.getCurrentStack = getCurrentFiberStackInDev;
+      current = fiber;
+      isRendering = false;
+    }
+  }
+  function setIsRendering(rendering) {
+    {
+      isRendering = rendering;
+    }
+  }
+  function getIsRendering() {
+    {
+      return isRendering;
+    }
+  }
+
+  // Flow does not allow string concatenation of most non-string types. To work
+  // around this limitation, we use an opaque type that can only be obtained by
+  // passing the value through getToStringValue first.
+  function toString(value) {
+    return '' + value;
+  }
+  function getToStringValue(value) {
+    switch (typeof value) {
+      case 'boolean':
+      case 'number':
+      case 'object':
+      case 'string':
+      case 'undefined':
+        return value;
+
+      default:
+        // function, symbol are assigned as empty strings
+        return '';
+    }
+  }
+
+  var hasReadOnlyValue = {
+    button: true,
+    checkbox: true,
+    image: true,
+    hidden: true,
+    radio: true,
+    reset: true,
+    submit: true
+  };
+  function checkControlledValueProps(tagName, props) {
+    {
+      if (!(hasReadOnlyValue[props.type] || props.onChange || props.onInput || props.readOnly || props.disabled || props.value == null)) {
+        error('You provided a `value` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultValue`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
+      }
+
+      if (!(props.onChange || props.readOnly || props.disabled || props.checked == null)) {
+        error('You provided a `checked` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultChecked`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
+      }
+    }
+  }
+
+  function isCheckable(elem) {
+    var type = elem.type;
+    var nodeName = elem.nodeName;
+    return nodeName && nodeName.toLowerCase() === 'input' && (type === 'checkbox' || type === 'radio');
+  }
+
+  function getTracker(node) {
+    return node._valueTracker;
+  }
+
+  function detachTracker(node) {
+    node._valueTracker = null;
+  }
+
+  function getValueFromNode(node) {
+    var value = '';
+
+    if (!node) {
+      return value;
+    }
+
+    if (isCheckable(node)) {
+      value = node.checked ? 'true' : 'false';
+    } else {
+      value = node.value;
+    }
+
+    return value;
+  }
+
+  function trackValueOnNode(node) {
+    var valueField = isCheckable(node) ? 'checked' : 'value';
+    var descriptor = Object.getOwnPropertyDescriptor(node.constructor.prototype, valueField);
+    var currentValue = '' + node[valueField]; // if someone has already defined a value or Safari, then bail
+    // and don't track value will cause over reporting of changes,
+    // but it's better then a hard failure
+    // (needed for certain tests that spyOn input values and Safari)
+
+    if (node.hasOwnProperty(valueField) || typeof descriptor === 'undefined' || typeof descriptor.get !== 'function' || typeof descriptor.set !== 'function') {
+      return;
+    }
+
+    var get = descriptor.get,
+        set = descriptor.set;
+    Object.defineProperty(node, valueField, {
+      configurable: true,
+      get: function () {
+        return get.call(this);
+      },
+      set: function (value) {
+        currentValue = '' + value;
+        set.call(this, value);
+      }
+    }); // We could've passed this the first time
+    // but it triggers a bug in IE11 and Edge 14/15.
+    // Calling defineProperty() again should be equivalent.
+    // https://github.com/facebook/react/issues/11768
+
+    Object.defineProperty(node, valueField, {
+      enumerable: descriptor.enumerable
+    });
+    var tracker = {
+      getValue: function () {
+        return currentValue;
+      },
+      setValue: function (value) {
+        currentValue = '' + value;
+      },
+      stopTracking: function () {
+        detachTracker(node);
+        delete node[valueField];
+      }
+    };
+    return tracker;
+  }
+
+  function track(node) {
+    if (getTracker(node)) {
+      return;
+    } // TODO: Once it's just Fiber we can move this to node._wrapperState
+
+
+    node._valueTracker = trackValueOnNode(node);
+  }
+  function updateValueIfChanged(node) {
+    if (!node) {
+      return false;
+    }
+
+    var tracker = getTracker(node); // if there is no tracker at this point it's unlikely
+    // that trying again will succeed
+
+    if (!tracker) {
+      return true;
+    }
+
+    var lastValue = tracker.getValue();
+    var nextValue = getValueFromNode(node);
+
+    if (nextValue !== lastValue) {
+      tracker.setValue(nextValue);
+      return true;
+    }
+
+    return false;
+  }
+
+  function getActiveElement(doc) {
+    doc = doc || (typeof document !== 'undefined' ? document : undefined);
+
+    if (typeof doc === 'undefined') {
+      return null;
+    }
+
+    try {
+      return doc.activeElement || doc.body;
+    } catch (e) {
+      return doc.body;
+    }
+  }
+
+  var didWarnValueDefaultValue = false;
+  var didWarnCheckedDefaultChecked = false;
+  var didWarnControlledToUncontrolled = false;
+  var didWarnUncontrolledToControlled = false;
+
+  function isControlled(props) {
+    var usesChecked = props.type === 'checkbox' || props.type === 'radio';
+    return usesChecked ? props.checked != null : props.value != null;
+  }
+  /**
+   * Implements an <input> host component that allows setting these optional
+   * props: `checked`, `value`, `defaultChecked`, and `defaultValue`.
+   *
+   * If `checked` or `value` are not supplied (or null/undefined), user actions
+   * that affect the checked state or value will trigger updates to the element.
+   *
+   * If they are supplied (and not null/undefined), the rendered element will not
+   * trigger updates to the element. Instead, the props must change in order for
+   * the rendered element to be updated.
+   *
+   * The rendered element will be initialized as unchecked (or `defaultChecked`)
+   * with an empty value (or `defaultValue`).
+   *
+   * See http://www.w3.org/TR/2012/WD-html5-20121025/the-input-element.html
+   */
+
+
+  function getHostProps(element, props) {
+    var node = element;
+    var checked = props.checked;
+
+    var hostProps = _assign({}, props, {
+      defaultChecked: undefined,
+      defaultValue: undefined,
+      value: undefined,
+      checked: checked != null ? checked : node._wrapperState.initialChecked
+    });
+
+    return hostProps;
+  }
+  function initWrapperState(element, props) {
+    {
+      checkControlledValueProps('input', props);
+
+      if (props.checked !== undefined && props.defaultChecked !== undefined && !didWarnCheckedDefaultChecked) {
+        error('%s contains an input of type %s with both checked and defaultChecked props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the checked prop, or the defaultChecked prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://reactjs.org/link/controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component', props.type);
+
+        didWarnCheckedDefaultChecked = true;
+      }
+
+      if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) {
+        error('%s contains an input of type %s with both value and defaultValue props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://reactjs.org/link/controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component', props.type);
+
+        didWarnValueDefaultValue = true;
+      }
+    }
+
+    var node = element;
+    var defaultValue = props.defaultValue == null ? '' : props.defaultValue;
+    node._wrapperState = {
+      initialChecked: props.checked != null ? props.checked : props.defaultChecked,
+      initialValue: getToStringValue(props.value != null ? props.value : defaultValue),
+      controlled: isControlled(props)
+    };
+  }
+  function updateChecked(element, props) {
+    var node = element;
+    var checked = props.checked;
+
+    if (checked != null) {
+      setValueForProperty(node, 'checked', checked, false);
+    }
+  }
+  function updateWrapper(element, props) {
+    var node = element;
+
+    {
+      var controlled = isControlled(props);
+
+      if (!node._wrapperState.controlled && controlled && !didWarnUncontrolledToControlled) {
+        error('A component is changing an uncontrolled input to be controlled. ' + 'This is likely caused by the value changing from undefined to ' + 'a defined value, which should not happen. ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://reactjs.org/link/controlled-components');
+
+        didWarnUncontrolledToControlled = true;
+      }
+
+      if (node._wrapperState.controlled && !controlled && !didWarnControlledToUncontrolled) {
+        error('A component is changing a controlled input to be uncontrolled. ' + 'This is likely caused by the value changing from a defined to ' + 'undefined, which should not happen. ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://reactjs.org/link/controlled-components');
+
+        didWarnControlledToUncontrolled = true;
+      }
+    }
+
+    updateChecked(element, props);
+    var value = getToStringValue(props.value);
+    var type = props.type;
+
+    if (value != null) {
+      if (type === 'number') {
+        if (value === 0 && node.value === '' || // We explicitly want to coerce to number here if possible.
+        // eslint-disable-next-line
+        node.value != value) {
+          node.value = toString(value);
+        }
+      } else if (node.value !== toString(value)) {
+        node.value = toString(value);
+      }
+    } else if (type === 'submit' || type === 'reset') {
+      // Submit/reset inputs need the attribute removed completely to avoid
+      // blank-text buttons.
+      node.removeAttribute('value');
+      return;
+    }
+
+    {
+      // When syncing the value attribute, the value comes from a cascade of
+      // properties:
+      //  1. The value React property
+      //  2. The defaultValue React property
+      //  3. Otherwise there should be no change
+      if (props.hasOwnProperty('value')) {
+        setDefaultValue(node, props.type, value);
+      } else if (props.hasOwnProperty('defaultValue')) {
+        setDefaultValue(node, props.type, getToStringValue(props.defaultValue));
+      }
+    }
+
+    {
+      // When syncing the checked attribute, it only changes when it needs
+      // to be removed, such as transitioning from a checkbox into a text input
+      if (props.checked == null && props.defaultChecked != null) {
+        node.defaultChecked = !!props.defaultChecked;
+      }
+    }
+  }
+  function postMountWrapper(element, props, isHydrating) {
+    var node = element; // Do not assign value if it is already set. This prevents user text input
+    // from being lost during SSR hydration.
+
+    if (props.hasOwnProperty('value') || props.hasOwnProperty('defaultValue')) {
+      var type = props.type;
+      var isButton = type === 'submit' || type === 'reset'; // Avoid setting value attribute on submit/reset inputs as it overrides the
+      // default value provided by the browser. See: #12872
+
+      if (isButton && (props.value === undefined || props.value === null)) {
+        return;
+      }
+
+      var initialValue = toString(node._wrapperState.initialValue); // Do not assign value if it is already set. This prevents user text input
+      // from being lost during SSR hydration.
+
+      if (!isHydrating) {
+        {
+          // When syncing the value attribute, the value property should use
+          // the wrapperState._initialValue property. This uses:
+          //
+          //   1. The value React property when present
+          //   2. The defaultValue React property when present
+          //   3. An empty string
+          if (initialValue !== node.value) {
+            node.value = initialValue;
+          }
+        }
+      }
+
+      {
+        // Otherwise, the value attribute is synchronized to the property,
+        // so we assign defaultValue to the same thing as the value property
+        // assignment step above.
+        node.defaultValue = initialValue;
+      }
+    } // Normally, we'd just do `node.checked = node.checked` upon initial mount, less this bug
+    // this is needed to work around a chrome bug where setting defaultChecked
+    // will sometimes influence the value of checked (even after detachment).
+    // Reference: https://bugs.chromium.org/p/chromium/issues/detail?id=608416
+    // We need to temporarily unset name to avoid disrupting radio button groups.
+
+
+    var name = node.name;
+
+    if (name !== '') {
+      node.name = '';
+    }
+
+    {
+      // When syncing the checked attribute, both the checked property and
+      // attribute are assigned at the same time using defaultChecked. This uses:
+      //
+      //   1. The checked React property when present
+      //   2. The defaultChecked React property when present
+      //   3. Otherwise, false
+      node.defaultChecked = !node.defaultChecked;
+      node.defaultChecked = !!node._wrapperState.initialChecked;
+    }
+
+    if (name !== '') {
+      node.name = name;
+    }
+  }
+  function restoreControlledState(element, props) {
+    var node = element;
+    updateWrapper(node, props);
+    updateNamedCousins(node, props);
+  }
+
+  function updateNamedCousins(rootNode, props) {
+    var name = props.name;
+
+    if (props.type === 'radio' && name != null) {
+      var queryRoot = rootNode;
+
+      while (queryRoot.parentNode) {
+        queryRoot = queryRoot.parentNode;
+      } // If `rootNode.form` was non-null, then we could try `form.elements`,
+      // but that sometimes behaves strangely in IE8. We could also try using
+      // `form.getElementsByName`, but that will only return direct children
+      // and won't include inputs that use the HTML5 `form=` attribute. Since
+      // the input might not even be in a form. It might not even be in the
+      // document. Let's just use the local `querySelectorAll` to ensure we don't
+      // miss anything.
+
+
+      var group = queryRoot.querySelectorAll('input[name=' + JSON.stringify('' + name) + '][type="radio"]');
+
+      for (var i = 0; i < group.length; i++) {
+        var otherNode = group[i];
+
+        if (otherNode === rootNode || otherNode.form !== rootNode.form) {
+          continue;
+        } // This will throw if radio buttons rendered by different copies of React
+        // and the same name are rendered into the same form (same as #1939).
+        // That's probably okay; we don't support it just as we don't support
+        // mixing React radio buttons with non-React ones.
+
+
+        var otherProps = getFiberCurrentPropsFromNode(otherNode);
+
+        if (!otherProps) {
+          {
+            throw Error( "ReactDOMInput: Mixing React and non-React radio inputs with the same `name` is not supported." );
+          }
+        } // We need update the tracked value on the named cousin since the value
+        // was changed but the input saw no event or value set
+
+
+        updateValueIfChanged(otherNode); // If this is a controlled radio button group, forcing the input that
+        // was previously checked to update will cause it to be come re-checked
+        // as appropriate.
+
+        updateWrapper(otherNode, otherProps);
+      }
+    }
+  } // In Chrome, assigning defaultValue to certain input types triggers input validation.
+  // For number inputs, the display value loses trailing decimal points. For email inputs,
+  // Chrome raises "The specified value <x> is not a valid email address".
+  //
+  // Here we check to see if the defaultValue has actually changed, avoiding these problems
+  // when the user is inputting text
+  //
+  // https://github.com/facebook/react/issues/7253
+
+
+  function setDefaultValue(node, type, value) {
+    if ( // Focused number inputs synchronize on blur. See ChangeEventPlugin.js
+    type !== 'number' || getActiveElement(node.ownerDocument) !== node) {
+      if (value == null) {
+        node.defaultValue = toString(node._wrapperState.initialValue);
+      } else if (node.defaultValue !== toString(value)) {
+        node.defaultValue = toString(value);
+      }
+    }
+  }
+
+  var didWarnSelectedSetOnOption = false;
+  var didWarnInvalidChild = false;
+
+  function flattenChildren(children) {
+    var content = ''; // Flatten children. We'll warn if they are invalid
+    // during validateProps() which runs for hydration too.
+    // Note that this would throw on non-element objects.
+    // Elements are stringified (which is normally irrelevant
+    // but matters for <fbt>).
+
+    React.Children.forEach(children, function (child) {
+      if (child == null) {
+        return;
+      }
+
+      content += child; // Note: we don't warn about invalid children here.
+      // Instead, this is done separately below so that
+      // it happens during the hydration code path too.
+    });
+    return content;
+  }
+  /**
+   * Implements an <option> host component that warns when `selected` is set.
+   */
+
+
+  function validateProps(element, props) {
+    {
+      // This mirrors the code path above, but runs for hydration too.
+      // Warn about invalid children here so that client and hydration are consistent.
+      // TODO: this seems like it could cause a DEV-only throw for hydration
+      // if children contains a non-element object. We should try to avoid that.
+      if (typeof props.children === 'object' && props.children !== null) {
+        React.Children.forEach(props.children, function (child) {
+          if (child == null) {
+            return;
+          }
+
+          if (typeof child === 'string' || typeof child === 'number') {
+            return;
+          }
+
+          if (typeof child.type !== 'string') {
+            return;
+          }
+
+          if (!didWarnInvalidChild) {
+            didWarnInvalidChild = true;
+
+            error('Only strings and numbers are supported as <option> children.');
+          }
+        });
+      } // TODO: Remove support for `selected` in <option>.
+
+
+      if (props.selected != null && !didWarnSelectedSetOnOption) {
+        error('Use the `defaultValue` or `value` props on <select> instead of ' + 'setting `selected` on <option>.');
+
+        didWarnSelectedSetOnOption = true;
+      }
+    }
+  }
+  function postMountWrapper$1(element, props) {
+    // value="" should make a value attribute (#6219)
+    if (props.value != null) {
+      element.setAttribute('value', toString(getToStringValue(props.value)));
+    }
+  }
+  function getHostProps$1(element, props) {
+    var hostProps = _assign({
+      children: undefined
+    }, props);
+
+    var content = flattenChildren(props.children);
+
+    if (content) {
+      hostProps.children = content;
+    }
+
+    return hostProps;
+  }
+
+  var didWarnValueDefaultValue$1;
+
+  {
+    didWarnValueDefaultValue$1 = false;
+  }
+
+  function getDeclarationErrorAddendum() {
+    var ownerName = getCurrentFiberOwnerNameInDevOrNull();
+
+    if (ownerName) {
+      return '\n\nCheck the render method of `' + ownerName + '`.';
+    }
+
+    return '';
+  }
+
+  var valuePropNames = ['value', 'defaultValue'];
+  /**
+   * Validation function for `value` and `defaultValue`.
+   */
+
+  function checkSelectPropTypes(props) {
+    {
+      checkControlledValueProps('select', props);
+
+      for (var i = 0; i < valuePropNames.length; i++) {
+        var propName = valuePropNames[i];
+
+        if (props[propName] == null) {
+          continue;
+        }
+
+        var isArray = Array.isArray(props[propName]);
+
+        if (props.multiple && !isArray) {
+          error('The `%s` prop supplied to <select> must be an array if ' + '`multiple` is true.%s', propName, getDeclarationErrorAddendum());
+        } else if (!props.multiple && isArray) {
+          error('The `%s` prop supplied to <select> must be a scalar ' + 'value if `multiple` is false.%s', propName, getDeclarationErrorAddendum());
+        }
+      }
+    }
+  }
+
+  function updateOptions(node, multiple, propValue, setDefaultSelected) {
+    var options = node.options;
+
+    if (multiple) {
+      var selectedValues = propValue;
+      var selectedValue = {};
+
+      for (var i = 0; i < selectedValues.length; i++) {
+        // Prefix to avoid chaos with special keys.
+        selectedValue['$' + selectedValues[i]] = true;
+      }
+
+      for (var _i = 0; _i < options.length; _i++) {
+        var selected = selectedValue.hasOwnProperty('$' + options[_i].value);
+
+        if (options[_i].selected !== selected) {
+          options[_i].selected = selected;
+        }
+
+        if (selected && setDefaultSelected) {
+          options[_i].defaultSelected = true;
+        }
+      }
+    } else {
+      // Do not set `select.value` as exact behavior isn't consistent across all
+      // browsers for all cases.
+      var _selectedValue = toString(getToStringValue(propValue));
+
+      var defaultSelected = null;
+
+      for (var _i2 = 0; _i2 < options.length; _i2++) {
+        if (options[_i2].value === _selectedValue) {
+          options[_i2].selected = true;
+
+          if (setDefaultSelected) {
+            options[_i2].defaultSelected = true;
+          }
+
+          return;
+        }
+
+        if (defaultSelected === null && !options[_i2].disabled) {
+          defaultSelected = options[_i2];
+        }
+      }
+
+      if (defaultSelected !== null) {
+        defaultSelected.selected = true;
+      }
+    }
+  }
+  /**
+   * Implements a <select> host component that allows optionally setting the
+   * props `value` and `defaultValue`. If `multiple` is false, the prop must be a
+   * stringable. If `multiple` is true, the prop must be an array of stringables.
+   *
+   * If `value` is not supplied (or null/undefined), user actions that change the
+   * selected option will trigger updates to the rendered options.
+   *
+   * If it is supplied (and not null/undefined), the rendered options will not
+   * update in response to user actions. Instead, the `value` prop must change in
+   * order for the rendered options to update.
+   *
+   * If `defaultValue` is provided, any options with the supplied values will be
+   * selected.
+   */
+
+
+  function getHostProps$2(element, props) {
+    return _assign({}, props, {
+      value: undefined
+    });
+  }
+  function initWrapperState$1(element, props) {
+    var node = element;
+
+    {
+      checkSelectPropTypes(props);
+    }
+
+    node._wrapperState = {
+      wasMultiple: !!props.multiple
+    };
+
+    {
+      if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue$1) {
+        error('Select elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled select ' + 'element and remove one of these props. More info: ' + 'https://reactjs.org/link/controlled-components');
+
+        didWarnValueDefaultValue$1 = true;
+      }
+    }
+  }
+  function postMountWrapper$2(element, props) {
+    var node = element;
+    node.multiple = !!props.multiple;
+    var value = props.value;
+
+    if (value != null) {
+      updateOptions(node, !!props.multiple, value, false);
+    } else if (props.defaultValue != null) {
+      updateOptions(node, !!props.multiple, props.defaultValue, true);
+    }
+  }
+  function postUpdateWrapper(element, props) {
+    var node = element;
+    var wasMultiple = node._wrapperState.wasMultiple;
+    node._wrapperState.wasMultiple = !!props.multiple;
+    var value = props.value;
+
+    if (value != null) {
+      updateOptions(node, !!props.multiple, value, false);
+    } else if (wasMultiple !== !!props.multiple) {
+      // For simplicity, reapply `defaultValue` if `multiple` is toggled.
+      if (props.defaultValue != null) {
+        updateOptions(node, !!props.multiple, props.defaultValue, true);
+      } else {
+        // Revert the select back to its default unselected state.
+        updateOptions(node, !!props.multiple, props.multiple ? [] : '', false);
+      }
+    }
+  }
+  function restoreControlledState$1(element, props) {
+    var node = element;
+    var value = props.value;
+
+    if (value != null) {
+      updateOptions(node, !!props.multiple, value, false);
+    }
+  }
+
+  var didWarnValDefaultVal = false;
+
+  /**
+   * Implements a <textarea> host component that allows setting `value`, and
+   * `defaultValue`. This differs from the traditional DOM API because value is
+   * usually set as PCDATA children.
+   *
+   * If `value` is not supplied (or null/undefined), user actions that affect the
+   * value will trigger updates to the element.
+   *
+   * If `value` is supplied (and not null/undefined), the rendered element will
+   * not trigger updates to the element. Instead, the `value` prop must change in
+   * order for the rendered element to be updated.
+   *
+   * The rendered element will be initialized with an empty value, the prop
+   * `defaultValue` if specified, or the children content (deprecated).
+   */
+  function getHostProps$3(element, props) {
+    var node = element;
+
+    if (!(props.dangerouslySetInnerHTML == null)) {
+      {
+        throw Error( "`dangerouslySetInnerHTML` does not make sense on <textarea>." );
+      }
+    } // Always set children to the same thing. In IE9, the selection range will
+    // get reset if `textContent` is mutated.  We could add a check in setTextContent
+    // to only set the value if/when the value differs from the node value (which would
+    // completely solve this IE9 bug), but Sebastian+Sophie seemed to like this
+    // solution. The value can be a boolean or object so that's why it's forced
+    // to be a string.
+
+
+    var hostProps = _assign({}, props, {
+      value: undefined,
+      defaultValue: undefined,
+      children: toString(node._wrapperState.initialValue)
+    });
+
+    return hostProps;
+  }
+  function initWrapperState$2(element, props) {
+    var node = element;
+
+    {
+      checkControlledValueProps('textarea', props);
+
+      if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValDefaultVal) {
+        error('%s contains a textarea with both value and defaultValue props. ' + 'Textarea elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled textarea ' + 'and remove one of these props. More info: ' + 'https://reactjs.org/link/controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component');
+
+        didWarnValDefaultVal = true;
+      }
+    }
+
+    var initialValue = props.value; // Only bother fetching default value if we're going to use it
+
+    if (initialValue == null) {
+      var children = props.children,
+          defaultValue = props.defaultValue;
+
+      if (children != null) {
+        {
+          error('Use the `defaultValue` or `value` props instead of setting ' + 'children on <textarea>.');
+        }
+
+        {
+          if (!(defaultValue == null)) {
+            {
+              throw Error( "If you supply `defaultValue` on a <textarea>, do not pass children." );
+            }
+          }
+
+          if (Array.isArray(children)) {
+            if (!(children.length <= 1)) {
+              {
+                throw Error( "<textarea> can only have at most one child." );
+              }
+            }
+
+            children = children[0];
+          }
+
+          defaultValue = children;
+        }
+      }
+
+      if (defaultValue == null) {
+        defaultValue = '';
+      }
+
+      initialValue = defaultValue;
+    }
+
+    node._wrapperState = {
+      initialValue: getToStringValue(initialValue)
+    };
+  }
+  function updateWrapper$1(element, props) {
+    var node = element;
+    var value = getToStringValue(props.value);
+    var defaultValue = getToStringValue(props.defaultValue);
+
+    if (value != null) {
+      // Cast `value` to a string to ensure the value is set correctly. While
+      // browsers typically do this as necessary, jsdom doesn't.
+      var newValue = toString(value); // To avoid side effects (such as losing text selection), only set value if changed
+
+      if (newValue !== node.value) {
+        node.value = newValue;
+      }
+
+      if (props.defaultValue == null && node.defaultValue !== newValue) {
+        node.defaultValue = newValue;
+      }
+    }
+
+    if (defaultValue != null) {
+      node.defaultValue = toString(defaultValue);
+    }
+  }
+  function postMountWrapper$3(element, props) {
+    var node = element; // This is in postMount because we need access to the DOM node, which is not
+    // available until after the component has mounted.
+
+    var textContent = node.textContent; // Only set node.value if textContent is equal to the expected
+    // initial value. In IE10/IE11 there is a bug where the placeholder attribute
+    // will populate textContent as well.
+    // https://developer.microsoft.com/microsoft-edge/platform/issues/101525/
+
+    if (textContent === node._wrapperState.initialValue) {
+      if (textContent !== '' && textContent !== null) {
+        node.value = textContent;
+      }
+    }
+  }
+  function restoreControlledState$2(element, props) {
+    // DOM component is still mounted; update
+    updateWrapper$1(element, props);
+  }
+
+  var HTML_NAMESPACE = 'http://www.w3.org/1999/xhtml';
+  var MATH_NAMESPACE = 'http://www.w3.org/1998/Math/MathML';
+  var SVG_NAMESPACE = 'http://www.w3.org/2000/svg';
+  var Namespaces = {
+    html: HTML_NAMESPACE,
+    mathml: MATH_NAMESPACE,
+    svg: SVG_NAMESPACE
+  }; // Assumes there is no parent namespace.
+
+  function getIntrinsicNamespace(type) {
+    switch (type) {
+      case 'svg':
+        return SVG_NAMESPACE;
+
+      case 'math':
+        return MATH_NAMESPACE;
+
+      default:
+        return HTML_NAMESPACE;
+    }
+  }
+  function getChildNamespace(parentNamespace, type) {
+    if (parentNamespace == null || parentNamespace === HTML_NAMESPACE) {
+      // No (or default) parent namespace: potential entry point.
+      return getIntrinsicNamespace(type);
+    }
+
+    if (parentNamespace === SVG_NAMESPACE && type === 'foreignObject') {
+      // We're leaving SVG.
+      return HTML_NAMESPACE;
+    } // By default, pass namespace below.
+
+
+    return parentNamespace;
+  }
+
+  /* globals MSApp */
+
+  /**
+   * Create a function which has 'unsafe' privileges (required by windows8 apps)
+   */
+  var createMicrosoftUnsafeLocalFunction = function (func) {
+    if (typeof MSApp !== 'undefined' && MSApp.execUnsafeLocalFunction) {
+      return function (arg0, arg1, arg2, arg3) {
+        MSApp.execUnsafeLocalFunction(function () {
+          return func(arg0, arg1, arg2, arg3);
+        });
+      };
+    } else {
+      return func;
+    }
+  };
+
+  var reusableSVGContainer;
+  /**
+   * Set the innerHTML property of a node
+   *
+   * @param {DOMElement} node
+   * @param {string} html
+   * @internal
+   */
+
+  var setInnerHTML = createMicrosoftUnsafeLocalFunction(function (node, html) {
+    if (node.namespaceURI === Namespaces.svg) {
+
+      if (!('innerHTML' in node)) {
+        // IE does not have innerHTML for SVG nodes, so instead we inject the
+        // new markup in a temp node and then move the child nodes across into
+        // the target node
+        reusableSVGContainer = reusableSVGContainer || document.createElement('div');
+        reusableSVGContainer.innerHTML = '<svg>' + html.valueOf().toString() + '</svg>';
+        var svgNode = reusableSVGContainer.firstChild;
+
+        while (node.firstChild) {
+          node.removeChild(node.firstChild);
+        }
+
+        while (svgNode.firstChild) {
+          node.appendChild(svgNode.firstChild);
+        }
+
+        return;
+      }
+    }
+
+    node.innerHTML = html;
+  });
+
+  /**
+   * HTML nodeType values that represent the type of the node
+   */
+  var ELEMENT_NODE = 1;
+  var TEXT_NODE = 3;
+  var COMMENT_NODE = 8;
+  var DOCUMENT_NODE = 9;
+  var DOCUMENT_FRAGMENT_NODE = 11;
+
+  /**
+   * Set the textContent property of a node. For text updates, it's faster
+   * to set the `nodeValue` of the Text node directly instead of using
+   * `.textContent` which will remove the existing node and create a new one.
+   *
+   * @param {DOMElement} node
+   * @param {string} text
+   * @internal
+   */
+
+  var setTextContent = function (node, text) {
+    if (text) {
+      var firstChild = node.firstChild;
+
+      if (firstChild && firstChild === node.lastChild && firstChild.nodeType === TEXT_NODE) {
+        firstChild.nodeValue = text;
+        return;
+      }
+    }
+
+    node.textContent = text;
+  };
+
+  // List derived from Gecko source code:
+  // https://github.com/mozilla/gecko-dev/blob/4e638efc71/layout/style/test/property_database.js
+  var shorthandToLonghand = {
+    animation: ['animationDelay', 'animationDirection', 'animationDuration', 'animationFillMode', 'animationIterationCount', 'animationName', 'animationPlayState', 'animationTimingFunction'],
+    background: ['backgroundAttachment', 'backgroundClip', 'backgroundColor', 'backgroundImage', 'backgroundOrigin', 'backgroundPositionX', 'backgroundPositionY', 'backgroundRepeat', 'backgroundSize'],
+    backgroundPosition: ['backgroundPositionX', 'backgroundPositionY'],
+    border: ['borderBottomColor', 'borderBottomStyle', 'borderBottomWidth', 'borderImageOutset', 'borderImageRepeat', 'borderImageSlice', 'borderImageSource', 'borderImageWidth', 'borderLeftColor', 'borderLeftStyle', 'borderLeftWidth', 'borderRightColor', 'borderRightStyle', 'borderRightWidth', 'borderTopColor', 'borderTopStyle', 'borderTopWidth'],
+    borderBlockEnd: ['borderBlockEndColor', 'borderBlockEndStyle', 'borderBlockEndWidth'],
+    borderBlockStart: ['borderBlockStartColor', 'borderBlockStartStyle', 'borderBlockStartWidth'],
+    borderBottom: ['borderBottomColor', 'borderBottomStyle', 'borderBottomWidth'],
+    borderColor: ['borderBottomColor', 'borderLeftColor', 'borderRightColor', 'borderTopColor'],
+    borderImage: ['borderImageOutset', 'borderImageRepeat', 'borderImageSlice', 'borderImageSource', 'borderImageWidth'],
+    borderInlineEnd: ['borderInlineEndColor', 'borderInlineEndStyle', 'borderInlineEndWidth'],
+    borderInlineStart: ['borderInlineStartColor', 'borderInlineStartStyle', 'borderInlineStartWidth'],
+    borderLeft: ['borderLeftColor', 'borderLeftStyle', 'borderLeftWidth'],
+    borderRadius: ['borderBottomLeftRadius', 'borderBottomRightRadius', 'borderTopLeftRadius', 'borderTopRightRadius'],
+    borderRight: ['borderRightColor', 'borderRightStyle', 'borderRightWidth'],
+    borderStyle: ['borderBottomStyle', 'borderLeftStyle', 'borderRightStyle', 'borderTopStyle'],
+    borderTop: ['borderTopColor', 'borderTopStyle', 'borderTopWidth'],
+    borderWidth: ['borderBottomWidth', 'borderLeftWidth', 'borderRightWidth', 'borderTopWidth'],
+    columnRule: ['columnRuleColor', 'columnRuleStyle', 'columnRuleWidth'],
+    columns: ['columnCount', 'columnWidth'],
+    flex: ['flexBasis', 'flexGrow', 'flexShrink'],
+    flexFlow: ['flexDirection', 'flexWrap'],
+    font: ['fontFamily', 'fontFeatureSettings', 'fontKerning', 'fontLanguageOverride', 'fontSize', 'fontSizeAdjust', 'fontStretch', 'fontStyle', 'fontVariant', 'fontVariantAlternates', 'fontVariantCaps', 'fontVariantEastAsian', 'fontVariantLigatures', 'fontVariantNumeric', 'fontVariantPosition', 'fontWeight', 'lineHeight'],
+    fontVariant: ['fontVariantAlternates', 'fontVariantCaps', 'fontVariantEastAsian', 'fontVariantLigatures', 'fontVariantNumeric', 'fontVariantPosition'],
+    gap: ['columnGap', 'rowGap'],
+    grid: ['gridAutoColumns', 'gridAutoFlow', 'gridAutoRows', 'gridTemplateAreas', 'gridTemplateColumns', 'gridTemplateRows'],
+    gridArea: ['gridColumnEnd', 'gridColumnStart', 'gridRowEnd', 'gridRowStart'],
+    gridColumn: ['gridColumnEnd', 'gridColumnStart'],
+    gridColumnGap: ['columnGap'],
+    gridGap: ['columnGap', 'rowGap'],
+    gridRow: ['gridRowEnd', 'gridRowStart'],
+    gridRowGap: ['rowGap'],
+    gridTemplate: ['gridTemplateAreas', 'gridTemplateColumns', 'gridTemplateRows'],
+    listStyle: ['listStyleImage', 'listStylePosition', 'listStyleType'],
+    margin: ['marginBottom', 'marginLeft', 'marginRight', 'marginTop'],
+    marker: ['markerEnd', 'markerMid', 'markerStart'],
+    mask: ['maskClip', 'maskComposite', 'maskImage', 'maskMode', 'maskOrigin', 'maskPositionX', 'maskPositionY', 'maskRepeat', 'maskSize'],
+    maskPosition: ['maskPositionX', 'maskPositionY'],
+    outline: ['outlineColor', 'outlineStyle', 'outlineWidth'],
+    overflow: ['overflowX', 'overflowY'],
+    padding: ['paddingBottom', 'paddingLeft', 'paddingRight', 'paddingTop'],
+    placeContent: ['alignContent', 'justifyContent'],
+    placeItems: ['alignItems', 'justifyItems'],
+    placeSelf: ['alignSelf', 'justifySelf'],
+    textDecoration: ['textDecorationColor', 'textDecorationLine', 'textDecorationStyle'],
+    textEmphasis: ['textEmphasisColor', 'textEmphasisStyle'],
+    transition: ['transitionDelay', 'transitionDuration', 'transitionProperty', 'transitionTimingFunction'],
+    wordWrap: ['overflowWrap']
+  };
+
+  /**
+   * CSS properties which accept numbers but are not in units of "px".
+   */
+  var isUnitlessNumber = {
+    animationIterationCount: true,
+    borderImageOutset: true,
+    borderImageSlice: true,
+    borderImageWidth: true,
+    boxFlex: true,
+    boxFlexGroup: true,
+    boxOrdinalGroup: true,
+    columnCount: true,
+    columns: true,
+    flex: true,
+    flexGrow: true,
+    flexPositive: true,
+    flexShrink: true,
+    flexNegative: true,
+    flexOrder: true,
+    gridArea: true,
+    gridRow: true,
+    gridRowEnd: true,
+    gridRowSpan: true,
+    gridRowStart: true,
+    gridColumn: true,
+    gridColumnEnd: true,
+    gridColumnSpan: true,
+    gridColumnStart: true,
+    fontWeight: true,
+    lineClamp: true,
+    lineHeight: true,
+    opacity: true,
+    order: true,
+    orphans: true,
+    tabSize: true,
+    widows: true,
+    zIndex: true,
+    zoom: true,
+    // SVG-related properties
+    fillOpacity: true,
+    floodOpacity: true,
+    stopOpacity: true,
+    strokeDasharray: true,
+    strokeDashoffset: true,
+    strokeMiterlimit: true,
+    strokeOpacity: true,
+    strokeWidth: true
+  };
+  /**
+   * @param {string} prefix vendor-specific prefix, eg: Webkit
+   * @param {string} key style name, eg: transitionDuration
+   * @return {string} style name prefixed with `prefix`, properly camelCased, eg:
+   * WebkitTransitionDuration
+   */
+
+  function prefixKey(prefix, key) {
+    return prefix + key.charAt(0).toUpperCase() + key.substring(1);
+  }
+  /**
+   * Support style names that may come passed in prefixed by adding permutations
+   * of vendor prefixes.
+   */
+
+
+  var prefixes = ['Webkit', 'ms', 'Moz', 'O']; // Using Object.keys here, or else the vanilla for-in loop makes IE8 go into an
+  // infinite loop, because it iterates over the newly added props too.
+
+  Object.keys(isUnitlessNumber).forEach(function (prop) {
+    prefixes.forEach(function (prefix) {
+      isUnitlessNumber[prefixKey(prefix, prop)] = isUnitlessNumber[prop];
+    });
+  });
+
+  /**
+   * Convert a value into the proper css writable value. The style name `name`
+   * should be logical (no hyphens), as specified
+   * in `CSSProperty.isUnitlessNumber`.
+   *
+   * @param {string} name CSS property name such as `topMargin`.
+   * @param {*} value CSS property value such as `10px`.
+   * @return {string} Normalized style value with dimensions applied.
+   */
+
+  function dangerousStyleValue(name, value, isCustomProperty) {
+    // Note that we've removed escapeTextForBrowser() calls here since the
+    // whole string will be escaped when the attribute is injected into
+    // the markup. If you provide unsafe user data here they can inject
+    // arbitrary CSS which may be problematic (I couldn't repro this):
+    // https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
+    // http://www.thespanner.co.uk/2007/11/26/ultimate-xss-css-injection/
+    // This is not an XSS hole but instead a potential CSS injection issue
+    // which has lead to a greater discussion about how we're going to
+    // trust URLs moving forward. See #2115901
+    var isEmpty = value == null || typeof value === 'boolean' || value === '';
+
+    if (isEmpty) {
+      return '';
+    }
+
+    if (!isCustomProperty && typeof value === 'number' && value !== 0 && !(isUnitlessNumber.hasOwnProperty(name) && isUnitlessNumber[name])) {
+      return value + 'px'; // Presumes implicit 'px' suffix for unitless numbers
+    }
+
+    return ('' + value).trim();
+  }
+
+  var uppercasePattern = /([A-Z])/g;
+  var msPattern = /^ms-/;
+  /**
+   * Hyphenates a camelcased CSS property name, for example:
+   *
+   *   > hyphenateStyleName('backgroundColor')
+   *   < "background-color"
+   *   > hyphenateStyleName('MozTransition')
+   *   < "-moz-transition"
+   *   > hyphenateStyleName('msTransition')
+   *   < "-ms-transition"
+   *
+   * As Modernizr suggests (http://modernizr.com/docs/#prefixed), an `ms` prefix
+   * is converted to `-ms-`.
+   */
+
+  function hyphenateStyleName(name) {
+    return name.replace(uppercasePattern, '-$1').toLowerCase().replace(msPattern, '-ms-');
+  }
+
+  var warnValidStyle = function () {};
+
+  {
+    // 'msTransform' is correct, but the other prefixes should be capitalized
+    var badVendoredStyleNamePattern = /^(?:webkit|moz|o)[A-Z]/;
+    var msPattern$1 = /^-ms-/;
+    var hyphenPattern = /-(.)/g; // style values shouldn't contain a semicolon
+
+    var badStyleValueWithSemicolonPattern = /;\s*$/;
+    var warnedStyleNames = {};
+    var warnedStyleValues = {};
+    var warnedForNaNValue = false;
+    var warnedForInfinityValue = false;
+
+    var camelize = function (string) {
+      return string.replace(hyphenPattern, function (_, character) {
+        return character.toUpperCase();
+      });
+    };
+
+    var warnHyphenatedStyleName = function (name) {
+      if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
+        return;
+      }
+
+      warnedStyleNames[name] = true;
+
+      error('Unsupported style property %s. Did you mean %s?', name, // As Andi Smith suggests
+      // (http://www.andismith.com/blog/2012/02/modernizr-prefixed/), an `-ms` prefix
+      // is converted to lowercase `ms`.
+      camelize(name.replace(msPattern$1, 'ms-')));
+    };
+
+    var warnBadVendoredStyleName = function (name) {
+      if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
+        return;
+      }
+
+      warnedStyleNames[name] = true;
+
+      error('Unsupported vendor-prefixed style property %s. Did you mean %s?', name, name.charAt(0).toUpperCase() + name.slice(1));
+    };
+
+    var warnStyleValueWithSemicolon = function (name, value) {
+      if (warnedStyleValues.hasOwnProperty(value) && warnedStyleValues[value]) {
+        return;
+      }
+
+      warnedStyleValues[value] = true;
+
+      error("Style property values shouldn't contain a semicolon. " + 'Try "%s: %s" instead.', name, value.replace(badStyleValueWithSemicolonPattern, ''));
+    };
+
+    var warnStyleValueIsNaN = function (name, value) {
+      if (warnedForNaNValue) {
+        return;
+      }
+
+      warnedForNaNValue = true;
+
+      error('`NaN` is an invalid value for the `%s` css style property.', name);
+    };
+
+    var warnStyleValueIsInfinity = function (name, value) {
+      if (warnedForInfinityValue) {
+        return;
+      }
+
+      warnedForInfinityValue = true;
+
+      error('`Infinity` is an invalid value for the `%s` css style property.', name);
+    };
+
+    warnValidStyle = function (name, value) {
+      if (name.indexOf('-') > -1) {
+        warnHyphenatedStyleName(name);
+      } else if (badVendoredStyleNamePattern.test(name)) {
+        warnBadVendoredStyleName(name);
+      } else if (badStyleValueWithSemicolonPattern.test(value)) {
+        warnStyleValueWithSemicolon(name, value);
+      }
+
+      if (typeof value === 'number') {
+        if (isNaN(value)) {
+          warnStyleValueIsNaN(name, value);
+        } else if (!isFinite(value)) {
+          warnStyleValueIsInfinity(name, value);
+        }
+      }
+    };
+  }
+
+  var warnValidStyle$1 = warnValidStyle;
+
+  /**
+   * Operations for dealing with CSS properties.
+   */
+
+  /**
+   * This creates a string that is expected to be equivalent to the style
+   * attribute generated by server-side rendering. It by-passes warnings and
+   * security checks so it's not safe to use this value for anything other than
+   * comparison. It is only used in DEV for SSR validation.
+   */
+
+  function createDangerousStringForStyles(styles) {
+    {
+      var serialized = '';
+      var delimiter = '';
+
+      for (var styleName in styles) {
+        if (!styles.hasOwnProperty(styleName)) {
+          continue;
+        }
+
+        var styleValue = styles[styleName];
+
+        if (styleValue != null) {
+          var isCustomProperty = styleName.indexOf('--') === 0;
+          serialized += delimiter + (isCustomProperty ? styleName : hyphenateStyleName(styleName)) + ':';
+          serialized += dangerousStyleValue(styleName, styleValue, isCustomProperty);
+          delimiter = ';';
+        }
+      }
+
+      return serialized || null;
+    }
+  }
+  /**
+   * Sets the value for multiple styles on a node.  If a value is specified as
+   * '' (empty string), the corresponding style property will be unset.
+   *
+   * @param {DOMElement} node
+   * @param {object} styles
+   */
+
+  function setValueForStyles(node, styles) {
+    var style = node.style;
+
+    for (var styleName in styles) {
+      if (!styles.hasOwnProperty(styleName)) {
+        continue;
+      }
+
+      var isCustomProperty = styleName.indexOf('--') === 0;
+
+      {
+        if (!isCustomProperty) {
+          warnValidStyle$1(styleName, styles[styleName]);
+        }
+      }
+
+      var styleValue = dangerousStyleValue(styleName, styles[styleName], isCustomProperty);
+
+      if (styleName === 'float') {
+        styleName = 'cssFloat';
+      }
+
+      if (isCustomProperty) {
+        style.setProperty(styleName, styleValue);
+      } else {
+        style[styleName] = styleValue;
+      }
+    }
+  }
+
+  function isValueEmpty(value) {
+    return value == null || typeof value === 'boolean' || value === '';
+  }
+  /**
+   * Given {color: 'red', overflow: 'hidden'} returns {
+   *   color: 'color',
+   *   overflowX: 'overflow',
+   *   overflowY: 'overflow',
+   * }. This can be read as "the overflowY property was set by the overflow
+   * shorthand". That is, the values are the property that each was derived from.
+   */
+
+
+  function expandShorthandMap(styles) {
+    var expanded = {};
+
+    for (var key in styles) {
+      var longhands = shorthandToLonghand[key] || [key];
+
+      for (var i = 0; i < longhands.length; i++) {
+        expanded[longhands[i]] = key;
+      }
+    }
+
+    return expanded;
+  }
+  /**
+   * When mixing shorthand and longhand property names, we warn during updates if
+   * we expect an incorrect result to occur. In particular, we warn for:
+   *
+   * Updating a shorthand property (longhand gets overwritten):
+   *   {font: 'foo', fontVariant: 'bar'} -> {font: 'baz', fontVariant: 'bar'}
+   *   becomes .style.font = 'baz'
+   * Removing a shorthand property (longhand gets lost too):
+   *   {font: 'foo', fontVariant: 'bar'} -> {fontVariant: 'bar'}
+   *   becomes .style.font = ''
+   * Removing a longhand property (should revert to shorthand; doesn't):
+   *   {font: 'foo', fontVariant: 'bar'} -> {font: 'foo'}
+   *   becomes .style.fontVariant = ''
+   */
+
+
+  function validateShorthandPropertyCollisionInDev(styleUpdates, nextStyles) {
+    {
+      if (!nextStyles) {
+        return;
+      }
+
+      var expandedUpdates = expandShorthandMap(styleUpdates);
+      var expandedStyles = expandShorthandMap(nextStyles);
+      var warnedAbout = {};
+
+      for (var key in expandedUpdates) {
+        var originalKey = expandedUpdates[key];
+        var correctOriginalKey = expandedStyles[key];
+
+        if (correctOriginalKey && originalKey !== correctOriginalKey) {
+          var warningKey = originalKey + ',' + correctOriginalKey;
+
+          if (warnedAbout[warningKey]) {
+            continue;
+          }
+
+          warnedAbout[warningKey] = true;
+
+          error('%s a style property during rerender (%s) when a ' + 'conflicting property is set (%s) can lead to styling bugs. To ' + "avoid this, don't mix shorthand and non-shorthand properties " + 'for the same value; instead, replace the shorthand with ' + 'separate values.', isValueEmpty(styleUpdates[originalKey]) ? 'Removing' : 'Updating', originalKey, correctOriginalKey);
+        }
+      }
+    }
+  }
+
+  // For HTML, certain tags should omit their close tag. We keep a list for
+  // those special-case tags.
+  var omittedCloseTags = {
+    area: true,
+    base: true,
+    br: true,
+    col: true,
+    embed: true,
+    hr: true,
+    img: true,
+    input: true,
+    keygen: true,
+    link: true,
+    meta: true,
+    param: true,
+    source: true,
+    track: true,
+    wbr: true // NOTE: menuitem's close tag should be omitted, but that causes problems.
+
+  };
+
+  // `omittedCloseTags` except that `menuitem` should still have its closing tag.
+
+  var voidElementTags = _assign({
+    menuitem: true
+  }, omittedCloseTags);
+
+  var HTML = '__html';
+
+  function assertValidProps(tag, props) {
+    if (!props) {
+      return;
+    } // Note the use of `==` which checks for null or undefined.
+
+
+    if (voidElementTags[tag]) {
+      if (!(props.children == null && props.dangerouslySetInnerHTML == null)) {
+        {
+          throw Error( tag + " is a void element tag and must neither have `children` nor use `dangerouslySetInnerHTML`." );
+        }
+      }
+    }
+
+    if (props.dangerouslySetInnerHTML != null) {
+      if (!(props.children == null)) {
+        {
+          throw Error( "Can only set one of `children` or `props.dangerouslySetInnerHTML`." );
+        }
+      }
+
+      if (!(typeof props.dangerouslySetInnerHTML === 'object' && HTML in props.dangerouslySetInnerHTML)) {
+        {
+          throw Error( "`props.dangerouslySetInnerHTML` must be in the form `{__html: ...}`. Please visit https://reactjs.org/link/dangerously-set-inner-html for more information." );
+        }
+      }
+    }
+
+    {
+      if (!props.suppressContentEditableWarning && props.contentEditable && props.children != null) {
+        error('A component is `contentEditable` and contains `children` managed by ' + 'React. It is now your responsibility to guarantee that none of ' + 'those nodes are unexpectedly modified or duplicated. This is ' + 'probably not intentional.');
+      }
+    }
+
+    if (!(props.style == null || typeof props.style === 'object')) {
+      {
+        throw Error( "The `style` prop expects a mapping from style properties to values, not a string. For example, style={{marginRight: spacing + 'em'}} when using JSX." );
+      }
+    }
+  }
+
+  function isCustomComponent(tagName, props) {
+    if (tagName.indexOf('-') === -1) {
+      return typeof props.is === 'string';
+    }
+
+    switch (tagName) {
+      // These are reserved SVG and MathML elements.
+      // We don't mind this list too much because we expect it to never grow.
+      // The alternative is to track the namespace in a few places which is convoluted.
+      // https://w3c.github.io/webcomponents/spec/custom/#custom-elements-core-concepts
+      case 'annotation-xml':
+      case 'color-profile':
+      case 'font-face':
+      case 'font-face-src':
+      case 'font-face-uri':
+      case 'font-face-format':
+      case 'font-face-name':
+      case 'missing-glyph':
+        return false;
+
+      default:
+        return true;
+    }
+  }
+
+  // When adding attributes to the HTML or SVG allowed attribute list, be sure to
+  // also add them to this module to ensure casing and incorrect name
+  // warnings.
+  var possibleStandardNames = {
+    // HTML
+    accept: 'accept',
+    acceptcharset: 'acceptCharset',
+    'accept-charset': 'acceptCharset',
+    accesskey: 'accessKey',
+    action: 'action',
+    allowfullscreen: 'allowFullScreen',
+    alt: 'alt',
+    as: 'as',
+    async: 'async',
+    autocapitalize: 'autoCapitalize',
+    autocomplete: 'autoComplete',
+    autocorrect: 'autoCorrect',
+    autofocus: 'autoFocus',
+    autoplay: 'autoPlay',
+    autosave: 'autoSave',
+    capture: 'capture',
+    cellpadding: 'cellPadding',
+    cellspacing: 'cellSpacing',
+    challenge: 'challenge',
+    charset: 'charSet',
+    checked: 'checked',
+    children: 'children',
+    cite: 'cite',
+    class: 'className',
+    classid: 'classID',
+    classname: 'className',
+    cols: 'cols',
+    colspan: 'colSpan',
+    content: 'content',
+    contenteditable: 'contentEditable',
+    contextmenu: 'contextMenu',
+    controls: 'controls',
+    controlslist: 'controlsList',
+    coords: 'coords',
+    crossorigin: 'crossOrigin',
+    dangerouslysetinnerhtml: 'dangerouslySetInnerHTML',
+    data: 'data',
+    datetime: 'dateTime',
+    default: 'default',
+    defaultchecked: 'defaultChecked',
+    defaultvalue: 'defaultValue',
+    defer: 'defer',
+    dir: 'dir',
+    disabled: 'disabled',
+    disablepictureinpicture: 'disablePictureInPicture',
+    disableremoteplayback: 'disableRemotePlayback',
+    download: 'download',
+    draggable: 'draggable',
+    enctype: 'encType',
+    enterkeyhint: 'enterKeyHint',
+    for: 'htmlFor',
+    form: 'form',
+    formmethod: 'formMethod',
+    formaction: 'formAction',
+    formenctype: 'formEncType',
+    formnovalidate: 'formNoValidate',
+    formtarget: 'formTarget',
+    frameborder: 'frameBorder',
+    headers: 'headers',
+    height: 'height',
+    hidden: 'hidden',
+    high: 'high',
+    href: 'href',
+    hreflang: 'hrefLang',
+    htmlfor: 'htmlFor',
+    httpequiv: 'httpEquiv',
+    'http-equiv': 'httpEquiv',
+    icon: 'icon',
+    id: 'id',
+    innerhtml: 'innerHTML',
+    inputmode: 'inputMode',
+    integrity: 'integrity',
+    is: 'is',
+    itemid: 'itemID',
+    itemprop: 'itemProp',
+    itemref: 'itemRef',
+    itemscope: 'itemScope',
+    itemtype: 'itemType',
+    keyparams: 'keyParams',
+    keytype: 'keyType',
+    kind: 'kind',
+    label: 'label',
+    lang: 'lang',
+    list: 'list',
+    loop: 'loop',
+    low: 'low',
+    manifest: 'manifest',
+    marginwidth: 'marginWidth',
+    marginheight: 'marginHeight',
+    max: 'max',
+    maxlength: 'maxLength',
+    media: 'media',
+    mediagroup: 'mediaGroup',
+    method: 'method',
+    min: 'min',
+    minlength: 'minLength',
+    multiple: 'multiple',
+    muted: 'muted',
+    name: 'name',
+    nomodule: 'noModule',
+    nonce: 'nonce',
+    novalidate: 'noValidate',
+    open: 'open',
+    optimum: 'optimum',
+    pattern: 'pattern',
+    placeholder: 'placeholder',
+    playsinline: 'playsInline',
+    poster: 'poster',
+    preload: 'preload',
+    profile: 'profile',
+    radiogroup: 'radioGroup',
+    readonly: 'readOnly',
+    referrerpolicy: 'referrerPolicy',
+    rel: 'rel',
+    required: 'required',
+    reversed: 'reversed',
+    role: 'role',
+    rows: 'rows',
+    rowspan: 'rowSpan',
+    sandbox: 'sandbox',
+    scope: 'scope',
+    scoped: 'scoped',
+    scrolling: 'scrolling',
+    seamless: 'seamless',
+    selected: 'selected',
+    shape: 'shape',
+    size: 'size',
+    sizes: 'sizes',
+    span: 'span',
+    spellcheck: 'spellCheck',
+    src: 'src',
+    srcdoc: 'srcDoc',
+    srclang: 'srcLang',
+    srcset: 'srcSet',
+    start: 'start',
+    step: 'step',
+    style: 'style',
+    summary: 'summary',
+    tabindex: 'tabIndex',
+    target: 'target',
+    title: 'title',
+    type: 'type',
+    usemap: 'useMap',
+    value: 'value',
+    width: 'width',
+    wmode: 'wmode',
+    wrap: 'wrap',
+    // SVG
+    about: 'about',
+    accentheight: 'accentHeight',
+    'accent-height': 'accentHeight',
+    accumulate: 'accumulate',
+    additive: 'additive',
+    alignmentbaseline: 'alignmentBaseline',
+    'alignment-baseline': 'alignmentBaseline',
+    allowreorder: 'allowReorder',
+    alphabetic: 'alphabetic',
+    amplitude: 'amplitude',
+    arabicform: 'arabicForm',
+    'arabic-form': 'arabicForm',
+    ascent: 'ascent',
+    attributename: 'attributeName',
+    attributetype: 'attributeType',
+    autoreverse: 'autoReverse',
+    azimuth: 'azimuth',
+    basefrequency: 'baseFrequency',
+    baselineshift: 'baselineShift',
+    'baseline-shift': 'baselineShift',
+    baseprofile: 'baseProfile',
+    bbox: 'bbox',
+    begin: 'begin',
+    bias: 'bias',
+    by: 'by',
+    calcmode: 'calcMode',
+    capheight: 'capHeight',
+    'cap-height': 'capHeight',
+    clip: 'clip',
+    clippath: 'clipPath',
+    'clip-path': 'clipPath',
+    clippathunits: 'clipPathUnits',
+    cliprule: 'clipRule',
+    'clip-rule': 'clipRule',
+    color: 'color',
+    colorinterpolation: 'colorInterpolation',
+    'color-interpolation': 'colorInterpolation',
+    colorinterpolationfilters: 'colorInterpolationFilters',
+    'color-interpolation-filters': 'colorInterpolationFilters',
+    colorprofile: 'colorProfile',
+    'color-profile': 'colorProfile',
+    colorrendering: 'colorRendering',
+    'color-rendering': 'colorRendering',
+    contentscripttype: 'contentScriptType',
+    contentstyletype: 'contentStyleType',
+    cursor: 'cursor',
+    cx: 'cx',
+    cy: 'cy',
+    d: 'd',
+    datatype: 'datatype',
+    decelerate: 'decelerate',
+    descent: 'descent',
+    diffuseconstant: 'diffuseConstant',
+    direction: 'direction',
+    display: 'display',
+    divisor: 'divisor',
+    dominantbaseline: 'dominantBaseline',
+    'dominant-baseline': 'dominantBaseline',
+    dur: 'dur',
+    dx: 'dx',
+    dy: 'dy',
+    edgemode: 'edgeMode',
+    elevation: 'elevation',
+    enablebackground: 'enableBackground',
+    'enable-background': 'enableBackground',
+    end: 'end',
+    exponent: 'exponent',
+    externalresourcesrequired: 'externalResourcesRequired',
+    fill: 'fill',
+    fillopacity: 'fillOpacity',
+    'fill-opacity': 'fillOpacity',
+    fillrule: 'fillRule',
+    'fill-rule': 'fillRule',
+    filter: 'filter',
+    filterres: 'filterRes',
+    filterunits: 'filterUnits',
+    floodopacity: 'floodOpacity',
+    'flood-opacity': 'floodOpacity',
+    floodcolor: 'floodColor',
+    'flood-color': 'floodColor',
+    focusable: 'focusable',
+    fontfamily: 'fontFamily',
+    'font-family': 'fontFamily',
+    fontsize: 'fontSize',
+    'font-size': 'fontSize',
+    fontsizeadjust: 'fontSizeAdjust',
+    'font-size-adjust': 'fontSizeAdjust',
+    fontstretch: 'fontStretch',
+    'font-stretch': 'fontStretch',
+    fontstyle: 'fontStyle',
+    'font-style': 'fontStyle',
+    fontvariant: 'fontVariant',
+    'font-variant': 'fontVariant',
+    fontweight: 'fontWeight',
+    'font-weight': 'fontWeight',
+    format: 'format',
+    from: 'from',
+    fx: 'fx',
+    fy: 'fy',
+    g1: 'g1',
+    g2: 'g2',
+    glyphname: 'glyphName',
+    'glyph-name': 'glyphName',
+    glyphorientationhorizontal: 'glyphOrientationHorizontal',
+    'glyph-orientation-horizontal': 'glyphOrientationHorizontal',
+    glyphorientationvertical: 'glyphOrientationVertical',
+    'glyph-orientation-vertical': 'glyphOrientationVertical',
+    glyphref: 'glyphRef',
+    gradienttransform: 'gradientTransform',
+    gradientunits: 'gradientUnits',
+    hanging: 'hanging',
+    horizadvx: 'horizAdvX',
+    'horiz-adv-x': 'horizAdvX',
+    horizoriginx: 'horizOriginX',
+    'horiz-origin-x': 'horizOriginX',
+    ideographic: 'ideographic',
+    imagerendering: 'imageRendering',
+    'image-rendering': 'imageRendering',
+    in2: 'in2',
+    in: 'in',
+    inlist: 'inlist',
+    intercept: 'intercept',
+    k1: 'k1',
+    k2: 'k2',
+    k3: 'k3',
+    k4: 'k4',
+    k: 'k',
+    kernelmatrix: 'kernelMatrix',
+    kernelunitlength: 'kernelUnitLength',
+    kerning: 'kerning',
+    keypoints: 'keyPoints',
+    keysplines: 'keySplines',
+    keytimes: 'keyTimes',
+    lengthadjust: 'lengthAdjust',
+    letterspacing: 'letterSpacing',
+    'letter-spacing': 'letterSpacing',
+    lightingcolor: 'lightingColor',
+    'lighting-color': 'lightingColor',
+    limitingconeangle: 'limitingConeAngle',
+    local: 'local',
+    markerend: 'markerEnd',
+    'marker-end': 'markerEnd',
+    markerheight: 'markerHeight',
+    markermid: 'markerMid',
+    'marker-mid': 'markerMid',
+    markerstart: 'markerStart',
+    'marker-start': 'markerStart',
+    markerunits: 'markerUnits',
+    markerwidth: 'markerWidth',
+    mask: 'mask',
+    maskcontentunits: 'maskContentUnits',
+    maskunits: 'maskUnits',
+    mathematical: 'mathematical',
+    mode: 'mode',
+    numoctaves: 'numOctaves',
+    offset: 'offset',
+    opacity: 'opacity',
+    operator: 'operator',
+    order: 'order',
+    orient: 'orient',
+    orientation: 'orientation',
+    origin: 'origin',
+    overflow: 'overflow',
+    overlineposition: 'overlinePosition',
+    'overline-position': 'overlinePosition',
+    overlinethickness: 'overlineThickness',
+    'overline-thickness': 'overlineThickness',
+    paintorder: 'paintOrder',
+    'paint-order': 'paintOrder',
+    panose1: 'panose1',
+    'panose-1': 'panose1',
+    pathlength: 'pathLength',
+    patterncontentunits: 'patternContentUnits',
+    patterntransform: 'patternTransform',
+    patternunits: 'patternUnits',
+    pointerevents: 'pointerEvents',
+    'pointer-events': 'pointerEvents',
+    points: 'points',
+    pointsatx: 'pointsAtX',
+    pointsaty: 'pointsAtY',
+    pointsatz: 'pointsAtZ',
+    prefix: 'prefix',
+    preservealpha: 'preserveAlpha',
+    preserveaspectratio: 'preserveAspectRatio',
+    primitiveunits: 'primitiveUnits',
+    property: 'property',
+    r: 'r',
+    radius: 'radius',
+    refx: 'refX',
+    refy: 'refY',
+    renderingintent: 'renderingIntent',
+    'rendering-intent': 'renderingIntent',
+    repeatcount: 'repeatCount',
+    repeatdur: 'repeatDur',
+    requiredextensions: 'requiredExtensions',
+    requiredfeatures: 'requiredFeatures',
+    resource: 'resource',
+    restart: 'restart',
+    result: 'result',
+    results: 'results',
+    rotate: 'rotate',
+    rx: 'rx',
+    ry: 'ry',
+    scale: 'scale',
+    security: 'security',
+    seed: 'seed',
+    shaperendering: 'shapeRendering',
+    'shape-rendering': 'shapeRendering',
+    slope: 'slope',
+    spacing: 'spacing',
+    specularconstant: 'specularConstant',
+    specularexponent: 'specularExponent',
+    speed: 'speed',
+    spreadmethod: 'spreadMethod',
+    startoffset: 'startOffset',
+    stddeviation: 'stdDeviation',
+    stemh: 'stemh',
+    stemv: 'stemv',
+    stitchtiles: 'stitchTiles',
+    stopcolor: 'stopColor',
+    'stop-color': 'stopColor',
+    stopopacity: 'stopOpacity',
+    'stop-opacity': 'stopOpacity',
+    strikethroughposition: 'strikethroughPosition',
+    'strikethrough-position': 'strikethroughPosition',
+    strikethroughthickness: 'strikethroughThickness',
+    'strikethrough-thickness': 'strikethroughThickness',
+    string: 'string',
+    stroke: 'stroke',
+    strokedasharray: 'strokeDasharray',
+    'stroke-dasharray': 'strokeDasharray',
+    strokedashoffset: 'strokeDashoffset',
+    'stroke-dashoffset': 'strokeDashoffset',
+    strokelinecap: 'strokeLinecap',
+    'stroke-linecap': 'strokeLinecap',
+    strokelinejoin: 'strokeLinejoin',
+    'stroke-linejoin': 'strokeLinejoin',
+    strokemiterlimit: 'strokeMiterlimit',
+    'stroke-miterlimit': 'strokeMiterlimit',
+    strokewidth: 'strokeWidth',
+    'stroke-width': 'strokeWidth',
+    strokeopacity: 'strokeOpacity',
+    'stroke-opacity': 'strokeOpacity',
+    suppresscontenteditablewarning: 'suppressContentEditableWarning',
+    suppresshydrationwarning: 'suppressHydrationWarning',
+    surfacescale: 'surfaceScale',
+    systemlanguage: 'systemLanguage',
+    tablevalues: 'tableValues',
+    targetx: 'targetX',
+    targety: 'targetY',
+    textanchor: 'textAnchor',
+    'text-anchor': 'textAnchor',
+    textdecoration: 'textDecoration',
+    'text-decoration': 'textDecoration',
+    textlength: 'textLength',
+    textrendering: 'textRendering',
+    'text-rendering': 'textRendering',
+    to: 'to',
+    transform: 'transform',
+    typeof: 'typeof',
+    u1: 'u1',
+    u2: 'u2',
+    underlineposition: 'underlinePosition',
+    'underline-position': 'underlinePosition',
+    underlinethickness: 'underlineThickness',
+    'underline-thickness': 'underlineThickness',
+    unicode: 'unicode',
+    unicodebidi: 'unicodeBidi',
+    'unicode-bidi': 'unicodeBidi',
+    unicoderange: 'unicodeRange',
+    'unicode-range': 'unicodeRange',
+    unitsperem: 'unitsPerEm',
+    'units-per-em': 'unitsPerEm',
+    unselectable: 'unselectable',
+    valphabetic: 'vAlphabetic',
+    'v-alphabetic': 'vAlphabetic',
+    values: 'values',
+    vectoreffect: 'vectorEffect',
+    'vector-effect': 'vectorEffect',
+    version: 'version',
+    vertadvy: 'vertAdvY',
+    'vert-adv-y': 'vertAdvY',
+    vertoriginx: 'vertOriginX',
+    'vert-origin-x': 'vertOriginX',
+    vertoriginy: 'vertOriginY',
+    'vert-origin-y': 'vertOriginY',
+    vhanging: 'vHanging',
+    'v-hanging': 'vHanging',
+    videographic: 'vIdeographic',
+    'v-ideographic': 'vIdeographic',
+    viewbox: 'viewBox',
+    viewtarget: 'viewTarget',
+    visibility: 'visibility',
+    vmathematical: 'vMathematical',
+    'v-mathematical': 'vMathematical',
+    vocab: 'vocab',
+    widths: 'widths',
+    wordspacing: 'wordSpacing',
+    'word-spacing': 'wordSpacing',
+    writingmode: 'writingMode',
+    'writing-mode': 'writingMode',
+    x1: 'x1',
+    x2: 'x2',
+    x: 'x',
+    xchannelselector: 'xChannelSelector',
+    xheight: 'xHeight',
+    'x-height': 'xHeight',
+    xlinkactuate: 'xlinkActuate',
+    'xlink:actuate': 'xlinkActuate',
+    xlinkarcrole: 'xlinkArcrole',
+    'xlink:arcrole': 'xlinkArcrole',
+    xlinkhref: 'xlinkHref',
+    'xlink:href': 'xlinkHref',
+    xlinkrole: 'xlinkRole',
+    'xlink:role': 'xlinkRole',
+    xlinkshow: 'xlinkShow',
+    'xlink:show': 'xlinkShow',
+    xlinktitle: 'xlinkTitle',
+    'xlink:title': 'xlinkTitle',
+    xlinktype: 'xlinkType',
+    'xlink:type': 'xlinkType',
+    xmlbase: 'xmlBase',
+    'xml:base': 'xmlBase',
+    xmllang: 'xmlLang',
+    'xml:lang': 'xmlLang',
+    xmlns: 'xmlns',
+    'xml:space': 'xmlSpace',
+    xmlnsxlink: 'xmlnsXlink',
+    'xmlns:xlink': 'xmlnsXlink',
+    xmlspace: 'xmlSpace',
+    y1: 'y1',
+    y2: 'y2',
+    y: 'y',
+    ychannelselector: 'yChannelSelector',
+    z: 'z',
+    zoomandpan: 'zoomAndPan'
+  };
+
+  var ariaProperties = {
+    'aria-current': 0,
+    // state
+    'aria-details': 0,
+    'aria-disabled': 0,
+    // state
+    'aria-hidden': 0,
+    // state
+    'aria-invalid': 0,
+    // state
+    'aria-keyshortcuts': 0,
+    'aria-label': 0,
+    'aria-roledescription': 0,
+    // Widget Attributes
+    'aria-autocomplete': 0,
+    'aria-checked': 0,
+    'aria-expanded': 0,
+    'aria-haspopup': 0,
+    'aria-level': 0,
+    'aria-modal': 0,
+    'aria-multiline': 0,
+    'aria-multiselectable': 0,
+    'aria-orientation': 0,
+    'aria-placeholder': 0,
+    'aria-pressed': 0,
+    'aria-readonly': 0,
+    'aria-required': 0,
+    'aria-selected': 0,
+    'aria-sort': 0,
+    'aria-valuemax': 0,
+    'aria-valuemin': 0,
+    'aria-valuenow': 0,
+    'aria-valuetext': 0,
+    // Live Region Attributes
+    'aria-atomic': 0,
+    'aria-busy': 0,
+    'aria-live': 0,
+    'aria-relevant': 0,
+    // Drag-and-Drop Attributes
+    'aria-dropeffect': 0,
+    'aria-grabbed': 0,
+    // Relationship Attributes
+    'aria-activedescendant': 0,
+    'aria-colcount': 0,
+    'aria-colindex': 0,
+    'aria-colspan': 0,
+    'aria-controls': 0,
+    'aria-describedby': 0,
+    'aria-errormessage': 0,
+    'aria-flowto': 0,
+    'aria-labelledby': 0,
+    'aria-owns': 0,
+    'aria-posinset': 0,
+    'aria-rowcount': 0,
+    'aria-rowindex': 0,
+    'aria-rowspan': 0,
+    'aria-setsize': 0
+  };
+
+  var warnedProperties = {};
+  var rARIA = new RegExp('^(aria)-[' + ATTRIBUTE_NAME_CHAR + ']*$');
+  var rARIACamel = new RegExp('^(aria)[A-Z][' + ATTRIBUTE_NAME_CHAR + ']*$');
+  var hasOwnProperty$1 = Object.prototype.hasOwnProperty;
+
+  function validateProperty(tagName, name) {
+    {
+      if (hasOwnProperty$1.call(warnedProperties, name) && warnedProperties[name]) {
+        return true;
+      }
+
+      if (rARIACamel.test(name)) {
+        var ariaName = 'aria-' + name.slice(4).toLowerCase();
+        var correctName = ariaProperties.hasOwnProperty(ariaName) ? ariaName : null; // If this is an aria-* attribute, but is not listed in the known DOM
+        // DOM properties, then it is an invalid aria-* attribute.
+
+        if (correctName == null) {
+          error('Invalid ARIA attribute `%s`. ARIA attributes follow the pattern aria-* and must be lowercase.', name);
+
+          warnedProperties[name] = true;
+          return true;
+        } // aria-* attributes should be lowercase; suggest the lowercase version.
+
+
+        if (name !== correctName) {
+          error('Invalid ARIA attribute `%s`. Did you mean `%s`?', name, correctName);
+
+          warnedProperties[name] = true;
+          return true;
+        }
+      }
+
+      if (rARIA.test(name)) {
+        var lowerCasedName = name.toLowerCase();
+        var standardName = ariaProperties.hasOwnProperty(lowerCasedName) ? lowerCasedName : null; // If this is an aria-* attribute, but is not listed in the known DOM
+        // DOM properties, then it is an invalid aria-* attribute.
+
+        if (standardName == null) {
+          warnedProperties[name] = true;
+          return false;
+        } // aria-* attributes should be lowercase; suggest the lowercase version.
+
+
+        if (name !== standardName) {
+          error('Unknown ARIA attribute `%s`. Did you mean `%s`?', name, standardName);
+
+          warnedProperties[name] = true;
+          return true;
+        }
+      }
+    }
+
+    return true;
+  }
+
+  function warnInvalidARIAProps(type, props) {
+    {
+      var invalidProps = [];
+
+      for (var key in props) {
+        var isValid = validateProperty(type, key);
+
+        if (!isValid) {
+          invalidProps.push(key);
+        }
+      }
+
+      var unknownPropString = invalidProps.map(function (prop) {
+        return '`' + prop + '`';
+      }).join(', ');
+
+      if (invalidProps.length === 1) {
+        error('Invalid aria prop %s on <%s> tag. ' + 'For details, see https://reactjs.org/link/invalid-aria-props', unknownPropString, type);
+      } else if (invalidProps.length > 1) {
+        error('Invalid aria props %s on <%s> tag. ' + 'For details, see https://reactjs.org/link/invalid-aria-props', unknownPropString, type);
+      }
+    }
+  }
+
+  function validateProperties(type, props) {
+    if (isCustomComponent(type, props)) {
+      return;
+    }
+
+    warnInvalidARIAProps(type, props);
+  }
+
+  var didWarnValueNull = false;
+  function validateProperties$1(type, props) {
+    {
+      if (type !== 'input' && type !== 'textarea' && type !== 'select') {
+        return;
+      }
+
+      if (props != null && props.value === null && !didWarnValueNull) {
+        didWarnValueNull = true;
+
+        if (type === 'select' && props.multiple) {
+          error('`value` prop on `%s` should not be null. ' + 'Consider using an empty array when `multiple` is set to `true` ' + 'to clear the component or `undefined` for uncontrolled components.', type);
+        } else {
+          error('`value` prop on `%s` should not be null. ' + 'Consider using an empty string to clear the component or `undefined` ' + 'for uncontrolled components.', type);
+        }
+      }
+    }
+  }
+
+  var validateProperty$1 = function () {};
+
+  {
+    var warnedProperties$1 = {};
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+    var EVENT_NAME_REGEX = /^on./;
+    var INVALID_EVENT_NAME_REGEX = /^on[^A-Z]/;
+    var rARIA$1 = new RegExp('^(aria)-[' + ATTRIBUTE_NAME_CHAR + ']*$');
+    var rARIACamel$1 = new RegExp('^(aria)[A-Z][' + ATTRIBUTE_NAME_CHAR + ']*$');
+
+    validateProperty$1 = function (tagName, name, value, eventRegistry) {
+      if (_hasOwnProperty.call(warnedProperties$1, name) && warnedProperties$1[name]) {
+        return true;
+      }
+
+      var lowerCasedName = name.toLowerCase();
+
+      if (lowerCasedName === 'onfocusin' || lowerCasedName === 'onfocusout') {
+        error('React uses onFocus and onBlur instead of onFocusIn and onFocusOut. ' + 'All React events are normalized to bubble, so onFocusIn and onFocusOut ' + 'are not needed/supported by React.');
+
+        warnedProperties$1[name] = true;
+        return true;
+      } // We can't rely on the event system being injected on the server.
+
+
+      if (eventRegistry != null) {
+        var registrationNameDependencies = eventRegistry.registrationNameDependencies,
+            possibleRegistrationNames = eventRegistry.possibleRegistrationNames;
+
+        if (registrationNameDependencies.hasOwnProperty(name)) {
+          return true;
+        }
+
+        var registrationName = possibleRegistrationNames.hasOwnProperty(lowerCasedName) ? possibleRegistrationNames[lowerCasedName] : null;
+
+        if (registrationName != null) {
+          error('Invalid event handler property `%s`. Did you mean `%s`?', name, registrationName);
+
+          warnedProperties$1[name] = true;
+          return true;
+        }
+
+        if (EVENT_NAME_REGEX.test(name)) {
+          error('Unknown event handler property `%s`. It will be ignored.', name);
+
+          warnedProperties$1[name] = true;
+          return true;
+        }
+      } else if (EVENT_NAME_REGEX.test(name)) {
+        // If no event plugins have been injected, we are in a server environment.
+        // So we can't tell if the event name is correct for sure, but we can filter
+        // out known bad ones like `onclick`. We can't suggest a specific replacement though.
+        if (INVALID_EVENT_NAME_REGEX.test(name)) {
+          error('Invalid event handler property `%s`. ' + 'React events use the camelCase naming convention, for example `onClick`.', name);
+        }
+
+        warnedProperties$1[name] = true;
+        return true;
+      } // Let the ARIA attribute hook validate ARIA attributes
+
+
+      if (rARIA$1.test(name) || rARIACamel$1.test(name)) {
+        return true;
+      }
+
+      if (lowerCasedName === 'innerhtml') {
+        error('Directly setting property `innerHTML` is not permitted. ' + 'For more information, lookup documentation on `dangerouslySetInnerHTML`.');
+
+        warnedProperties$1[name] = true;
+        return true;
+      }
+
+      if (lowerCasedName === 'aria') {
+        error('The `aria` attribute is reserved for future use in React. ' + 'Pass individual `aria-` attributes instead.');
+
+        warnedProperties$1[name] = true;
+        return true;
+      }
+
+      if (lowerCasedName === 'is' && value !== null && value !== undefined && typeof value !== 'string') {
+        error('Received a `%s` for a string attribute `is`. If this is expected, cast ' + 'the value to a string.', typeof value);
+
+        warnedProperties$1[name] = true;
+        return true;
+      }
+
+      if (typeof value === 'number' && isNaN(value)) {
+        error('Received NaN for the `%s` attribute. If this is expected, cast ' + 'the value to a string.', name);
+
+        warnedProperties$1[name] = true;
+        return true;
+      }
+
+      var propertyInfo = getPropertyInfo(name);
+      var isReserved = propertyInfo !== null && propertyInfo.type === RESERVED; // Known attributes should match the casing specified in the property config.
+
+      if (possibleStandardNames.hasOwnProperty(lowerCasedName)) {
+        var standardName = possibleStandardNames[lowerCasedName];
+
+        if (standardName !== name) {
+          error('Invalid DOM property `%s`. Did you mean `%s`?', name, standardName);
+
+          warnedProperties$1[name] = true;
+          return true;
+        }
+      } else if (!isReserved && name !== lowerCasedName) {
+        // Unknown attributes should have lowercase casing since that's how they
+        // will be cased anyway with server rendering.
+        error('React does not recognize the `%s` prop on a DOM element. If you ' + 'intentionally want it to appear in the DOM as a custom ' + 'attribute, spell it as lowercase `%s` instead. ' + 'If you accidentally passed it from a parent component, remove ' + 'it from the DOM element.', name, lowerCasedName);
+
+        warnedProperties$1[name] = true;
+        return true;
+      }
+
+      if (typeof value === 'boolean' && shouldRemoveAttributeWithWarning(name, value, propertyInfo, false)) {
+        if (value) {
+          error('Received `%s` for a non-boolean attribute `%s`.\n\n' + 'If you want to write it to the DOM, pass a string instead: ' + '%s="%s" or %s={value.toString()}.', value, name, name, value, name);
+        } else {
+          error('Received `%s` for a non-boolean attribute `%s`.\n\n' + 'If you want to write it to the DOM, pass a string instead: ' + '%s="%s" or %s={value.toString()}.\n\n' + 'If you used to conditionally omit it with %s={condition && value}, ' + 'pass %s={condition ? value : undefined} instead.', value, name, name, value, name, name, name);
+        }
+
+        warnedProperties$1[name] = true;
+        return true;
+      } // Now that we've validated casing, do not validate
+      // data types for reserved props
+
+
+      if (isReserved) {
+        return true;
+      } // Warn when a known attribute is a bad type
+
+
+      if (shouldRemoveAttributeWithWarning(name, value, propertyInfo, false)) {
+        warnedProperties$1[name] = true;
+        return false;
+      } // Warn when passing the strings 'false' or 'true' into a boolean prop
+
+
+      if ((value === 'false' || value === 'true') && propertyInfo !== null && propertyInfo.type === BOOLEAN) {
+        error('Received the string `%s` for the boolean attribute `%s`. ' + '%s ' + 'Did you mean %s={%s}?', value, name, value === 'false' ? 'The browser will interpret it as a truthy value.' : 'Although this works, it will not work as expected if you pass the string "false".', name, value);
+
+        warnedProperties$1[name] = true;
+        return true;
+      }
+
+      return true;
+    };
+  }
+
+  var warnUnknownProperties = function (type, props, eventRegistry) {
+    {
+      var unknownProps = [];
+
+      for (var key in props) {
+        var isValid = validateProperty$1(type, key, props[key], eventRegistry);
+
+        if (!isValid) {
+          unknownProps.push(key);
+        }
+      }
+
+      var unknownPropString = unknownProps.map(function (prop) {
+        return '`' + prop + '`';
+      }).join(', ');
+
+      if (unknownProps.length === 1) {
+        error('Invalid value for prop %s on <%s> tag. Either remove it from the element, ' + 'or pass a string or number value to keep it in the DOM. ' + 'For details, see https://reactjs.org/link/attribute-behavior ', unknownPropString, type);
+      } else if (unknownProps.length > 1) {
+        error('Invalid values for props %s on <%s> tag. Either remove them from the element, ' + 'or pass a string or number value to keep them in the DOM. ' + 'For details, see https://reactjs.org/link/attribute-behavior ', unknownPropString, type);
+      }
+    }
+  };
+
+  function validateProperties$2(type, props, eventRegistry) {
+    if (isCustomComponent(type, props)) {
+      return;
+    }
+
+    warnUnknownProperties(type, props, eventRegistry);
+  }
+
+  var IS_EVENT_HANDLE_NON_MANAGED_NODE = 1;
+  var IS_NON_DELEGATED = 1 << 1;
+  var IS_CAPTURE_PHASE = 1 << 2;
+  var IS_REPLAYED = 1 << 4;
+  // set to LEGACY_FB_SUPPORT. LEGACY_FB_SUPPORT only gets set when
+  // we call willDeferLaterForLegacyFBSupport, thus not bailing out
+  // will result in endless cycles like an infinite loop.
+  // We also don't want to defer during event replaying.
+
+  var SHOULD_NOT_PROCESS_POLYFILL_EVENT_PLUGINS = IS_EVENT_HANDLE_NON_MANAGED_NODE | IS_NON_DELEGATED | IS_CAPTURE_PHASE;
+
+  /**
+   * Gets the target node from a native browser event by accounting for
+   * inconsistencies in browser DOM APIs.
+   *
+   * @param {object} nativeEvent Native browser event.
+   * @return {DOMEventTarget} Target node.
+   */
+
+  function getEventTarget(nativeEvent) {
+    // Fallback to nativeEvent.srcElement for IE9
+    // https://github.com/facebook/react/issues/12506
+    var target = nativeEvent.target || nativeEvent.srcElement || window; // Normalize SVG <use> element events #4963
+
+    if (target.correspondingUseElement) {
+      target = target.correspondingUseElement;
+    } // Safari may fire events on text nodes (Node.TEXT_NODE is 3).
+    // @see http://www.quirksmode.org/js/events_properties.html
+
+
+    return target.nodeType === TEXT_NODE ? target.parentNode : target;
+  }
+
+  var restoreImpl = null;
+  var restoreTarget = null;
+  var restoreQueue = null;
+
+  function restoreStateOfTarget(target) {
+    // We perform this translation at the end of the event loop so that we
+    // always receive the correct fiber here
+    var internalInstance = getInstanceFromNode(target);
+
+    if (!internalInstance) {
+      // Unmounted
+      return;
+    }
+
+    if (!(typeof restoreImpl === 'function')) {
+      {
+        throw Error( "setRestoreImplementation() needs to be called to handle a target for controlled events. This error is likely caused by a bug in React. Please file an issue." );
+      }
+    }
+
+    var stateNode = internalInstance.stateNode; // Guard against Fiber being unmounted.
+
+    if (stateNode) {
+      var _props = getFiberCurrentPropsFromNode(stateNode);
+
+      restoreImpl(internalInstance.stateNode, internalInstance.type, _props);
+    }
+  }
+
+  function setRestoreImplementation(impl) {
+    restoreImpl = impl;
+  }
+  function enqueueStateRestore(target) {
+    if (restoreTarget) {
+      if (restoreQueue) {
+        restoreQueue.push(target);
+      } else {
+        restoreQueue = [target];
+      }
+    } else {
+      restoreTarget = target;
+    }
+  }
+  function needsStateRestore() {
+    return restoreTarget !== null || restoreQueue !== null;
+  }
+  function restoreStateIfNeeded() {
+    if (!restoreTarget) {
+      return;
+    }
+
+    var target = restoreTarget;
+    var queuedTargets = restoreQueue;
+    restoreTarget = null;
+    restoreQueue = null;
+    restoreStateOfTarget(target);
+
+    if (queuedTargets) {
+      for (var i = 0; i < queuedTargets.length; i++) {
+        restoreStateOfTarget(queuedTargets[i]);
+      }
+    }
+  }
+
+  // the renderer. Such as when we're dispatching events or if third party
+  // libraries need to call batchedUpdates. Eventually, this API will go away when
+  // everything is batched by default. We'll then have a similar API to opt-out of
+  // scheduled work and instead do synchronous work.
+  // Defaults
+
+  var batchedUpdatesImpl = function (fn, bookkeeping) {
+    return fn(bookkeeping);
+  };
+
+  var discreteUpdatesImpl = function (fn, a, b, c, d) {
+    return fn(a, b, c, d);
+  };
+
+  var flushDiscreteUpdatesImpl = function () {};
+
+  var batchedEventUpdatesImpl = batchedUpdatesImpl;
+  var isInsideEventHandler = false;
+  var isBatchingEventUpdates = false;
+
+  function finishEventHandler() {
+    // Here we wait until all updates have propagated, which is important
+    // when using controlled components within layers:
+    // https://github.com/facebook/react/issues/1698
+    // Then we restore state of any controlled component.
+    var controlledComponentsHavePendingUpdates = needsStateRestore();
+
+    if (controlledComponentsHavePendingUpdates) {
+      // If a controlled event was fired, we may need to restore the state of
+      // the DOM node back to the controlled value. This is necessary when React
+      // bails out of the update without touching the DOM.
+      flushDiscreteUpdatesImpl();
+      restoreStateIfNeeded();
+    }
+  }
+
+  function batchedUpdates(fn, bookkeeping) {
+    if (isInsideEventHandler) {
+      // If we are currently inside another batch, we need to wait until it
+      // fully completes before restoring state.
+      return fn(bookkeeping);
+    }
+
+    isInsideEventHandler = true;
+
+    try {
+      return batchedUpdatesImpl(fn, bookkeeping);
+    } finally {
+      isInsideEventHandler = false;
+      finishEventHandler();
+    }
+  }
+  function batchedEventUpdates(fn, a, b) {
+    if (isBatchingEventUpdates) {
+      // If we are currently inside another batch, we need to wait until it
+      // fully completes before restoring state.
+      return fn(a, b);
+    }
+
+    isBatchingEventUpdates = true;
+
+    try {
+      return batchedEventUpdatesImpl(fn, a, b);
+    } finally {
+      isBatchingEventUpdates = false;
+      finishEventHandler();
+    }
+  }
+  function discreteUpdates(fn, a, b, c, d) {
+    var prevIsInsideEventHandler = isInsideEventHandler;
+    isInsideEventHandler = true;
+
+    try {
+      return discreteUpdatesImpl(fn, a, b, c, d);
+    } finally {
+      isInsideEventHandler = prevIsInsideEventHandler;
+
+      if (!isInsideEventHandler) {
+        finishEventHandler();
+      }
+    }
+  }
+  function flushDiscreteUpdatesIfNeeded(timeStamp) {
+    {
+      if (!isInsideEventHandler) {
+        flushDiscreteUpdatesImpl();
+      }
+    }
+  }
+  function setBatchingImplementation(_batchedUpdatesImpl, _discreteUpdatesImpl, _flushDiscreteUpdatesImpl, _batchedEventUpdatesImpl) {
+    batchedUpdatesImpl = _batchedUpdatesImpl;
+    discreteUpdatesImpl = _discreteUpdatesImpl;
+    flushDiscreteUpdatesImpl = _flushDiscreteUpdatesImpl;
+    batchedEventUpdatesImpl = _batchedEventUpdatesImpl;
+  }
+
+  function isInteractive(tag) {
+    return tag === 'button' || tag === 'input' || tag === 'select' || tag === 'textarea';
+  }
+
+  function shouldPreventMouseEvent(name, type, props) {
+    switch (name) {
+      case 'onClick':
+      case 'onClickCapture':
+      case 'onDoubleClick':
+      case 'onDoubleClickCapture':
+      case 'onMouseDown':
+      case 'onMouseDownCapture':
+      case 'onMouseMove':
+      case 'onMouseMoveCapture':
+      case 'onMouseUp':
+      case 'onMouseUpCapture':
+      case 'onMouseEnter':
+        return !!(props.disabled && isInteractive(type));
+
+      default:
+        return false;
+    }
+  }
+  /**
+   * @param {object} inst The instance, which is the source of events.
+   * @param {string} registrationName Name of listener (e.g. `onClick`).
+   * @return {?function} The stored callback.
+   */
+
+
+  function getListener(inst, registrationName) {
+    var stateNode = inst.stateNode;
+
+    if (stateNode === null) {
+      // Work in progress (ex: onload events in incremental mode).
+      return null;
+    }
+
+    var props = getFiberCurrentPropsFromNode(stateNode);
+
+    if (props === null) {
+      // Work in progress.
+      return null;
+    }
+
+    var listener = props[registrationName];
+
+    if (shouldPreventMouseEvent(registrationName, inst.type, props)) {
+      return null;
+    }
+
+    if (!(!listener || typeof listener === 'function')) {
+      {
+        throw Error( "Expected `" + registrationName + "` listener to be a function, instead got a value of `" + typeof listener + "` type." );
+      }
+    }
+
+    return listener;
+  }
+
+  var passiveBrowserEventsSupported = false; // Check if browser support events with passive listeners
+  // https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
+
+  if (canUseDOM) {
+    try {
+      var options = {}; // $FlowFixMe: Ignore Flow complaining about needing a value
+
+      Object.defineProperty(options, 'passive', {
+        get: function () {
+          passiveBrowserEventsSupported = true;
+        }
+      });
+      window.addEventListener('test', options, options);
+      window.removeEventListener('test', options, options);
+    } catch (e) {
+      passiveBrowserEventsSupported = false;
+    }
+  }
+
+  function invokeGuardedCallbackProd(name, func, context, a, b, c, d, e, f) {
+    var funcArgs = Array.prototype.slice.call(arguments, 3);
+
+    try {
+      func.apply(context, funcArgs);
+    } catch (error) {
+      this.onError(error);
+    }
+  }
+
+  var invokeGuardedCallbackImpl = invokeGuardedCallbackProd;
+
+  {
+    // In DEV mode, we swap out invokeGuardedCallback for a special version
+    // that plays more nicely with the browser's DevTools. The idea is to preserve
+    // "Pause on exceptions" behavior. Because React wraps all user-provided
+    // functions in invokeGuardedCallback, and the production version of
+    // invokeGuardedCallback uses a try-catch, all user exceptions are treated
+    // like caught exceptions, and the DevTools won't pause unless the developer
+    // takes the extra step of enabling pause on caught exceptions. This is
+    // unintuitive, though, because even though React has caught the error, from
+    // the developer's perspective, the error is uncaught.
+    //
+    // To preserve the expected "Pause on exceptions" behavior, we don't use a
+    // try-catch in DEV. Instead, we synchronously dispatch a fake event to a fake
+    // DOM node, and call the user-provided callback from inside an event handler
+    // for that fake event. If the callback throws, the error is "captured" using
+    // a global event handler. But because the error happens in a different
+    // event loop context, it does not interrupt the normal program flow.
+    // Effectively, this gives us try-catch behavior without actually using
+    // try-catch. Neat!
+    // Check that the browser supports the APIs we need to implement our special
+    // DEV version of invokeGuardedCallback
+    if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') {
+      var fakeNode = document.createElement('react');
+
+      invokeGuardedCallbackImpl = function invokeGuardedCallbackDev(name, func, context, a, b, c, d, e, f) {
+        // If document doesn't exist we know for sure we will crash in this method
+        // when we call document.createEvent(). However this can cause confusing
+        // errors: https://github.com/facebookincubator/create-react-app/issues/3482
+        // So we preemptively throw with a better message instead.
+        if (!(typeof document !== 'undefined')) {
+          {
+            throw Error( "The `document` global was defined when React was initialized, but is not defined anymore. This can happen in a test environment if a component schedules an update from an asynchronous callback, but the test has already finished running. To solve this, you can either unmount the component at the end of your test (and ensure that any asynchronous operations get canceled in `componentWillUnmount`), or you can change the test itself to be asynchronous." );
+          }
+        }
+
+        var evt = document.createEvent('Event');
+        var didCall = false; // Keeps track of whether the user-provided callback threw an error. We
+        // set this to true at the beginning, then set it to false right after
+        // calling the function. If the function errors, `didError` will never be
+        // set to false. This strategy works even if the browser is flaky and
+        // fails to call our global error handler, because it doesn't rely on
+        // the error event at all.
+
+        var didError = true; // Keeps track of the value of window.event so that we can reset it
+        // during the callback to let user code access window.event in the
+        // browsers that support it.
+
+        var windowEvent = window.event; // Keeps track of the descriptor of window.event to restore it after event
+        // dispatching: https://github.com/facebook/react/issues/13688
+
+        var windowEventDescriptor = Object.getOwnPropertyDescriptor(window, 'event');
+
+        function restoreAfterDispatch() {
+          // We immediately remove the callback from event listeners so that
+          // nested `invokeGuardedCallback` calls do not clash. Otherwise, a
+          // nested call would trigger the fake event handlers of any call higher
+          // in the stack.
+          fakeNode.removeEventListener(evtType, callCallback, false); // We check for window.hasOwnProperty('event') to prevent the
+          // window.event assignment in both IE <= 10 as they throw an error
+          // "Member not found" in strict mode, and in Firefox which does not
+          // support window.event.
+
+          if (typeof window.event !== 'undefined' && window.hasOwnProperty('event')) {
+            window.event = windowEvent;
+          }
+        } // Create an event handler for our fake event. We will synchronously
+        // dispatch our fake event using `dispatchEvent`. Inside the handler, we
+        // call the user-provided callback.
+
+
+        var funcArgs = Array.prototype.slice.call(arguments, 3);
+
+        function callCallback() {
+          didCall = true;
+          restoreAfterDispatch();
+          func.apply(context, funcArgs);
+          didError = false;
+        } // Create a global error event handler. We use this to capture the value
+        // that was thrown. It's possible that this error handler will fire more
+        // than once; for example, if non-React code also calls `dispatchEvent`
+        // and a handler for that event throws. We should be resilient to most of
+        // those cases. Even if our error event handler fires more than once, the
+        // last error event is always used. If the callback actually does error,
+        // we know that the last error event is the correct one, because it's not
+        // possible for anything else to have happened in between our callback
+        // erroring and the code that follows the `dispatchEvent` call below. If
+        // the callback doesn't error, but the error event was fired, we know to
+        // ignore it because `didError` will be false, as described above.
+
+
+        var error; // Use this to track whether the error event is ever called.
+
+        var didSetError = false;
+        var isCrossOriginError = false;
+
+        function handleWindowError(event) {
+          error = event.error;
+          didSetError = true;
+
+          if (error === null && event.colno === 0 && event.lineno === 0) {
+            isCrossOriginError = true;
+          }
+
+          if (event.defaultPrevented) {
+            // Some other error handler has prevented default.
+            // Browsers silence the error report if this happens.
+            // We'll remember this to later decide whether to log it or not.
+            if (error != null && typeof error === 'object') {
+              try {
+                error._suppressLogging = true;
+              } catch (inner) {// Ignore.
+              }
+            }
+          }
+        } // Create a fake event type.
+
+
+        var evtType = "react-" + (name ? name : 'invokeguardedcallback'); // Attach our event handlers
+
+        window.addEventListener('error', handleWindowError);
+        fakeNode.addEventListener(evtType, callCallback, false); // Synchronously dispatch our fake event. If the user-provided function
+        // errors, it will trigger our global error handler.
+
+        evt.initEvent(evtType, false, false);
+        fakeNode.dispatchEvent(evt);
+
+        if (windowEventDescriptor) {
+          Object.defineProperty(window, 'event', windowEventDescriptor);
+        }
+
+        if (didCall && didError) {
+          if (!didSetError) {
+            // The callback errored, but the error event never fired.
+            error = new Error('An error was thrown inside one of your components, but React ' + "doesn't know what it was. This is likely due to browser " + 'flakiness. React does its best to preserve the "Pause on ' + 'exceptions" behavior of the DevTools, which requires some ' + "DEV-mode only tricks. It's possible that these don't work in " + 'your browser. Try triggering the error in production mode, ' + 'or switching to a modern browser. If you suspect that this is ' + 'actually an issue with React, please file an issue.');
+          } else if (isCrossOriginError) {
+            error = new Error("A cross-origin error was thrown. React doesn't have access to " + 'the actual error object in development. ' + 'See https://reactjs.org/link/crossorigin-error for more information.');
+          }
+
+          this.onError(error);
+        } // Remove our event listeners
+
+
+        window.removeEventListener('error', handleWindowError);
+
+        if (!didCall) {
+          // Something went really wrong, and our event was not dispatched.
+          // https://github.com/facebook/react/issues/16734
+          // https://github.com/facebook/react/issues/16585
+          // Fall back to the production implementation.
+          restoreAfterDispatch();
+          return invokeGuardedCallbackProd.apply(this, arguments);
+        }
+      };
+    }
+  }
+
+  var invokeGuardedCallbackImpl$1 = invokeGuardedCallbackImpl;
+
+  var hasError = false;
+  var caughtError = null; // Used by event system to capture/rethrow the first error.
+
+  var hasRethrowError = false;
+  var rethrowError = null;
+  var reporter = {
+    onError: function (error) {
+      hasError = true;
+      caughtError = error;
+    }
+  };
+  /**
+   * Call a function while guarding against errors that happens within it.
+   * Returns an error if it throws, otherwise null.
+   *
+   * In production, this is implemented using a try-catch. The reason we don't
+   * use a try-catch directly is so that we can swap out a different
+   * implementation in DEV mode.
+   *
+   * @param {String} name of the guard to use for logging or debugging
+   * @param {Function} func The function to invoke
+   * @param {*} context The context to use when calling the function
+   * @param {...*} args Arguments for function
+   */
+
+  function invokeGuardedCallback(name, func, context, a, b, c, d, e, f) {
+    hasError = false;
+    caughtError = null;
+    invokeGuardedCallbackImpl$1.apply(reporter, arguments);
+  }
+  /**
+   * Same as invokeGuardedCallback, but instead of returning an error, it stores
+   * it in a global so it can be rethrown by `rethrowCaughtError` later.
+   * TODO: See if caughtError and rethrowError can be unified.
+   *
+   * @param {String} name of the guard to use for logging or debugging
+   * @param {Function} func The function to invoke
+   * @param {*} context The context to use when calling the function
+   * @param {...*} args Arguments for function
+   */
+
+  function invokeGuardedCallbackAndCatchFirstError(name, func, context, a, b, c, d, e, f) {
+    invokeGuardedCallback.apply(this, arguments);
+
+    if (hasError) {
+      var error = clearCaughtError();
+
+      if (!hasRethrowError) {
+        hasRethrowError = true;
+        rethrowError = error;
+      }
+    }
+  }
+  /**
+   * During execution of guarded functions we will capture the first error which
+   * we will rethrow to be handled by the top level error handler.
+   */
+
+  function rethrowCaughtError() {
+    if (hasRethrowError) {
+      var error = rethrowError;
+      hasRethrowError = false;
+      rethrowError = null;
+      throw error;
+    }
+  }
+  function hasCaughtError() {
+    return hasError;
+  }
+  function clearCaughtError() {
+    if (hasError) {
+      var error = caughtError;
+      hasError = false;
+      caughtError = null;
+      return error;
+    } else {
+      {
+        {
+          throw Error( "clearCaughtError was called but no error was captured. This error is likely caused by a bug in React. Please file an issue." );
+        }
+      }
+    }
+  }
+
+  var ReactInternals$1 = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
+  var _ReactInternals$Sched = ReactInternals$1.Scheduler,
+      unstable_cancelCallback = _ReactInternals$Sched.unstable_cancelCallback,
+      unstable_now = _ReactInternals$Sched.unstable_now,
+      unstable_scheduleCallback = _ReactInternals$Sched.unstable_scheduleCallback,
+      unstable_shouldYield = _ReactInternals$Sched.unstable_shouldYield,
+      unstable_requestPaint = _ReactInternals$Sched.unstable_requestPaint,
+      unstable_getFirstCallbackNode = _ReactInternals$Sched.unstable_getFirstCallbackNode,
+      unstable_runWithPriority = _ReactInternals$Sched.unstable_runWithPriority,
+      unstable_next = _ReactInternals$Sched.unstable_next,
+      unstable_continueExecution = _ReactInternals$Sched.unstable_continueExecution,
+      unstable_pauseExecution = _ReactInternals$Sched.unstable_pauseExecution,
+      unstable_getCurrentPriorityLevel = _ReactInternals$Sched.unstable_getCurrentPriorityLevel,
+      unstable_ImmediatePriority = _ReactInternals$Sched.unstable_ImmediatePriority,
+      unstable_UserBlockingPriority = _ReactInternals$Sched.unstable_UserBlockingPriority,
+      unstable_NormalPriority = _ReactInternals$Sched.unstable_NormalPriority,
+      unstable_LowPriority = _ReactInternals$Sched.unstable_LowPriority,
+      unstable_IdlePriority = _ReactInternals$Sched.unstable_IdlePriority,
+      unstable_forceFrameRate = _ReactInternals$Sched.unstable_forceFrameRate,
+      unstable_flushAllWithoutAsserting = _ReactInternals$Sched.unstable_flushAllWithoutAsserting;
+
+  /**
+   * `ReactInstanceMap` maintains a mapping from a public facing stateful
+   * instance (key) and the internal representation (value). This allows public
+   * methods to accept the user facing instance as an argument and map them back
+   * to internal methods.
+   *
+   * Note that this module is currently shared and assumed to be stateless.
+   * If this becomes an actual Map, that will break.
+   */
+  function get(key) {
+    return key._reactInternals;
+  }
+  function has(key) {
+    return key._reactInternals !== undefined;
+  }
+  function set(key, value) {
+    key._reactInternals = value;
+  }
+
+  // Don't change these two values. They're used by React Dev Tools.
+  var NoFlags =
+  /*                      */
+  0;
+  var PerformedWork =
+  /*                */
+  1; // You can change the rest (and add more).
+
+  var Placement =
+  /*                    */
+  2;
+  var Update =
+  /*                       */
+  4;
+  var PlacementAndUpdate =
+  /*           */
+  6;
+  var Deletion =
+  /*                     */
+  8;
+  var ContentReset =
+  /*                 */
+  16;
+  var Callback =
+  /*                     */
+  32;
+  var DidCapture =
+  /*                   */
+  64;
+  var Ref =
+  /*                          */
+  128;
+  var Snapshot =
+  /*                     */
+  256;
+  var Passive =
+  /*                      */
+  512; // TODO (effects) Remove this bit once the new reconciler is synced to the old.
+
+  var PassiveUnmountPendingDev =
+  /*     */
+  8192;
+  var Hydrating =
+  /*                    */
+  1024;
+  var HydratingAndUpdate =
+  /*           */
+  1028; // Passive & Update & Callback & Ref & Snapshot
+
+  var LifecycleEffectMask =
+  /*          */
+  932; // Union of all host effects
+
+  var HostEffectMask =
+  /*               */
+  2047; // These are not really side effects, but we still reuse this field.
+
+  var Incomplete =
+  /*                   */
+  2048;
+  var ShouldCapture =
+  /*                */
+  4096;
+  var ForceUpdateForLegacySuspense =
+  /* */
+  16384; // Static tags describe aspects of a fiber that are not specific to a render,
+
+  var ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner;
+  function getNearestMountedFiber(fiber) {
+    var node = fiber;
+    var nearestMounted = fiber;
+
+    if (!fiber.alternate) {
+      // If there is no alternate, this might be a new tree that isn't inserted
+      // yet. If it is, then it will have a pending insertion effect on it.
+      var nextNode = node;
+
+      do {
+        node = nextNode;
+
+        if ((node.flags & (Placement | Hydrating)) !== NoFlags) {
+          // This is an insertion or in-progress hydration. The nearest possible
+          // mounted fiber is the parent but we need to continue to figure out
+          // if that one is still mounted.
+          nearestMounted = node.return;
+        }
+
+        nextNode = node.return;
+      } while (nextNode);
+    } else {
+      while (node.return) {
+        node = node.return;
+      }
+    }
+
+    if (node.tag === HostRoot) {
+      // TODO: Check if this was a nested HostRoot when used with
+      // renderContainerIntoSubtree.
+      return nearestMounted;
+    } // If we didn't hit the root, that means that we're in an disconnected tree
+    // that has been unmounted.
+
+
+    return null;
+  }
+  function getSuspenseInstanceFromFiber(fiber) {
+    if (fiber.tag === SuspenseComponent) {
+      var suspenseState = fiber.memoizedState;
+
+      if (suspenseState === null) {
+        var current = fiber.alternate;
+
+        if (current !== null) {
+          suspenseState = current.memoizedState;
+        }
+      }
+
+      if (suspenseState !== null) {
+        return suspenseState.dehydrated;
+      }
+    }
+
+    return null;
+  }
+  function getContainerFromFiber(fiber) {
+    return fiber.tag === HostRoot ? fiber.stateNode.containerInfo : null;
+  }
+  function isFiberMounted(fiber) {
+    return getNearestMountedFiber(fiber) === fiber;
+  }
+  function isMounted(component) {
+    {
+      var owner = ReactCurrentOwner.current;
+
+      if (owner !== null && owner.tag === ClassComponent) {
+        var ownerFiber = owner;
+        var instance = ownerFiber.stateNode;
+
+        if (!instance._warnedAboutRefsInRender) {
+          error('%s is accessing isMounted inside its render() function. ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName(ownerFiber.type) || 'A component');
+        }
+
+        instance._warnedAboutRefsInRender = true;
+      }
+    }
+
+    var fiber = get(component);
+
+    if (!fiber) {
+      return false;
+    }
+
+    return getNearestMountedFiber(fiber) === fiber;
+  }
+
+  function assertIsMounted(fiber) {
+    if (!(getNearestMountedFiber(fiber) === fiber)) {
+      {
+        throw Error( "Unable to find node on an unmounted component." );
+      }
+    }
+  }
+
+  function findCurrentFiberUsingSlowPath(fiber) {
+    var alternate = fiber.alternate;
+
+    if (!alternate) {
+      // If there is no alternate, then we only need to check if it is mounted.
+      var nearestMounted = getNearestMountedFiber(fiber);
+
+      if (!(nearestMounted !== null)) {
+        {
+          throw Error( "Unable to find node on an unmounted component." );
+        }
+      }
+
+      if (nearestMounted !== fiber) {
+        return null;
+      }
+
+      return fiber;
+    } // If we have two possible branches, we'll walk backwards up to the root
+    // to see what path the root points to. On the way we may hit one of the
+    // special cases and we'll deal with them.
+
+
+    var a = fiber;
+    var b = alternate;
+
+    while (true) {
+      var parentA = a.return;
+
+      if (parentA === null) {
+        // We're at the root.
+        break;
+      }
+
+      var parentB = parentA.alternate;
+
+      if (parentB === null) {
+        // There is no alternate. This is an unusual case. Currently, it only
+        // happens when a Suspense component is hidden. An extra fragment fiber
+        // is inserted in between the Suspense fiber and its children. Skip
+        // over this extra fragment fiber and proceed to the next parent.
+        var nextParent = parentA.return;
+
+        if (nextParent !== null) {
+          a = b = nextParent;
+          continue;
+        } // If there's no parent, we're at the root.
+
+
+        break;
+      } // If both copies of the parent fiber point to the same child, we can
+      // assume that the child is current. This happens when we bailout on low
+      // priority: the bailed out fiber's child reuses the current child.
+
+
+      if (parentA.child === parentB.child) {
+        var child = parentA.child;
+
+        while (child) {
+          if (child === a) {
+            // We've determined that A is the current branch.
+            assertIsMounted(parentA);
+            return fiber;
+          }
+
+          if (child === b) {
+            // We've determined that B is the current branch.
+            assertIsMounted(parentA);
+            return alternate;
+          }
+
+          child = child.sibling;
+        } // We should never have an alternate for any mounting node. So the only
+        // way this could possibly happen is if this was unmounted, if at all.
+
+
+        {
+          {
+            throw Error( "Unable to find node on an unmounted component." );
+          }
+        }
+      }
+
+      if (a.return !== b.return) {
+        // The return pointer of A and the return pointer of B point to different
+        // fibers. We assume that return pointers never criss-cross, so A must
+        // belong to the child set of A.return, and B must belong to the child
+        // set of B.return.
+        a = parentA;
+        b = parentB;
+      } else {
+        // The return pointers point to the same fiber. We'll have to use the
+        // default, slow path: scan the child sets of each parent alternate to see
+        // which child belongs to which set.
+        //
+        // Search parent A's child set
+        var didFindChild = false;
+        var _child = parentA.child;
+
+        while (_child) {
+          if (_child === a) {
+            didFindChild = true;
+            a = parentA;
+            b = parentB;
+            break;
+          }
+
+          if (_child === b) {
+            didFindChild = true;
+            b = parentA;
+            a = parentB;
+            break;
+          }
+
+          _child = _child.sibling;
+        }
+
+        if (!didFindChild) {
+          // Search parent B's child set
+          _child = parentB.child;
+
+          while (_child) {
+            if (_child === a) {
+              didFindChild = true;
+              a = parentB;
+              b = parentA;
+              break;
+            }
+
+            if (_child === b) {
+              didFindChild = true;
+              b = parentB;
+              a = parentA;
+              break;
+            }
+
+            _child = _child.sibling;
+          }
+
+          if (!didFindChild) {
+            {
+              throw Error( "Child was not found in either parent set. This indicates a bug in React related to the return pointer. Please file an issue." );
+            }
+          }
+        }
+      }
+
+      if (!(a.alternate === b)) {
+        {
+          throw Error( "Return fibers should always be each others' alternates. This error is likely caused by a bug in React. Please file an issue." );
+        }
+      }
+    } // If the root is not a host container, we're in a disconnected tree. I.e.
+    // unmounted.
+
+
+    if (!(a.tag === HostRoot)) {
+      {
+        throw Error( "Unable to find node on an unmounted component." );
+      }
+    }
+
+    if (a.stateNode.current === a) {
+      // We've determined that A is the current branch.
+      return fiber;
+    } // Otherwise B has to be current branch.
+
+
+    return alternate;
+  }
+  function findCurrentHostFiber(parent) {
+    var currentParent = findCurrentFiberUsingSlowPath(parent);
+
+    if (!currentParent) {
+      return null;
+    } // Next we'll drill down this component to find the first HostComponent/Text.
+
+
+    var node = currentParent;
+
+    while (true) {
+      if (node.tag === HostComponent || node.tag === HostText) {
+        return node;
+      } else if (node.child) {
+        node.child.return = node;
+        node = node.child;
+        continue;
+      }
+
+      if (node === currentParent) {
+        return null;
+      }
+
+      while (!node.sibling) {
+        if (!node.return || node.return === currentParent) {
+          return null;
+        }
+
+        node = node.return;
+      }
+
+      node.sibling.return = node.return;
+      node = node.sibling;
+    } // Flow needs the return null here, but ESLint complains about it.
+    // eslint-disable-next-line no-unreachable
+
+
+    return null;
+  }
+  function findCurrentHostFiberWithNoPortals(parent) {
+    var currentParent = findCurrentFiberUsingSlowPath(parent);
+
+    if (!currentParent) {
+      return null;
+    } // Next we'll drill down this component to find the first HostComponent/Text.
+
+
+    var node = currentParent;
+
+    while (true) {
+      if (node.tag === HostComponent || node.tag === HostText || enableFundamentalAPI ) {
+        return node;
+      } else if (node.child && node.tag !== HostPortal) {
+        node.child.return = node;
+        node = node.child;
+        continue;
+      }
+
+      if (node === currentParent) {
+        return null;
+      }
+
+      while (!node.sibling) {
+        if (!node.return || node.return === currentParent) {
+          return null;
+        }
+
+        node = node.return;
+      }
+
+      node.sibling.return = node.return;
+      node = node.sibling;
+    } // Flow needs the return null here, but ESLint complains about it.
+    // eslint-disable-next-line no-unreachable
+
+
+    return null;
+  }
+  function doesFiberContain(parentFiber, childFiber) {
+    var node = childFiber;
+    var parentFiberAlternate = parentFiber.alternate;
+
+    while (node !== null) {
+      if (node === parentFiber || node === parentFiberAlternate) {
+        return true;
+      }
+
+      node = node.return;
+    }
+
+    return false;
+  }
+
+  var attemptUserBlockingHydration;
+  function setAttemptUserBlockingHydration(fn) {
+    attemptUserBlockingHydration = fn;
+  }
+  var attemptContinuousHydration;
+  function setAttemptContinuousHydration(fn) {
+    attemptContinuousHydration = fn;
+  }
+  var attemptHydrationAtCurrentPriority;
+  function setAttemptHydrationAtCurrentPriority(fn) {
+    attemptHydrationAtCurrentPriority = fn;
+  }
+  var attemptHydrationAtPriority;
+  function setAttemptHydrationAtPriority(fn) {
+    attemptHydrationAtPriority = fn;
+  } // TODO: Upgrade this definition once we're on a newer version of Flow that
+  var hasScheduledReplayAttempt = false; // The queue of discrete events to be replayed.
+
+  var queuedDiscreteEvents = []; // Indicates if any continuous event targets are non-null for early bailout.
+  // if the last target was dehydrated.
+
+  var queuedFocus = null;
+  var queuedDrag = null;
+  var queuedMouse = null; // For pointer events there can be one latest event per pointerId.
+
+  var queuedPointers = new Map();
+  var queuedPointerCaptures = new Map(); // We could consider replaying selectionchange and touchmoves too.
+
+  var queuedExplicitHydrationTargets = [];
+  function hasQueuedDiscreteEvents() {
+    return queuedDiscreteEvents.length > 0;
+  }
+  var discreteReplayableEvents = ['mousedown', 'mouseup', 'touchcancel', 'touchend', 'touchstart', 'auxclick', 'dblclick', 'pointercancel', 'pointerdown', 'pointerup', 'dragend', 'dragstart', 'drop', 'compositionend', 'compositionstart', 'keydown', 'keypress', 'keyup', 'input', 'textInput', // Intentionally camelCase
+  'copy', 'cut', 'paste', 'click', 'change', 'contextmenu', 'reset', 'submit'];
+  function isReplayableDiscreteEvent(eventType) {
+    return discreteReplayableEvents.indexOf(eventType) > -1;
+  }
+
+  function createQueuedReplayableEvent(blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent) {
+    return {
+      blockedOn: blockedOn,
+      domEventName: domEventName,
+      eventSystemFlags: eventSystemFlags | IS_REPLAYED,
+      nativeEvent: nativeEvent,
+      targetContainers: [targetContainer]
+    };
+  }
+
+  function queueDiscreteEvent(blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent) {
+    var queuedEvent = createQueuedReplayableEvent(blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent);
+    queuedDiscreteEvents.push(queuedEvent);
+  } // Resets the replaying for this type of continuous event to no event.
+
+  function clearIfContinuousEvent(domEventName, nativeEvent) {
+    switch (domEventName) {
+      case 'focusin':
+      case 'focusout':
+        queuedFocus = null;
+        break;
+
+      case 'dragenter':
+      case 'dragleave':
+        queuedDrag = null;
+        break;
+
+      case 'mouseover':
+      case 'mouseout':
+        queuedMouse = null;
+        break;
+
+      case 'pointerover':
+      case 'pointerout':
+        {
+          var pointerId = nativeEvent.pointerId;
+          queuedPointers.delete(pointerId);
+          break;
+        }
+
+      case 'gotpointercapture':
+      case 'lostpointercapture':
+        {
+          var _pointerId = nativeEvent.pointerId;
+          queuedPointerCaptures.delete(_pointerId);
+          break;
+        }
+    }
+  }
+
+  function accumulateOrCreateContinuousQueuedReplayableEvent(existingQueuedEvent, blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent) {
+    if (existingQueuedEvent === null || existingQueuedEvent.nativeEvent !== nativeEvent) {
+      var queuedEvent = createQueuedReplayableEvent(blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent);
+
+      if (blockedOn !== null) {
+        var _fiber2 = getInstanceFromNode(blockedOn);
+
+        if (_fiber2 !== null) {
+          // Attempt to increase the priority of this target.
+          attemptContinuousHydration(_fiber2);
+        }
+      }
+
+      return queuedEvent;
+    } // If we have already queued this exact event, then it's because
+    // the different event systems have different DOM event listeners.
+    // We can accumulate the flags, and the targetContainers, and
+    // store a single event to be replayed.
+
+
+    existingQueuedEvent.eventSystemFlags |= eventSystemFlags;
+    var targetContainers = existingQueuedEvent.targetContainers;
+
+    if (targetContainer !== null && targetContainers.indexOf(targetContainer) === -1) {
+      targetContainers.push(targetContainer);
+    }
+
+    return existingQueuedEvent;
+  }
+
+  function queueIfContinuousEvent(blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent) {
+    // These set relatedTarget to null because the replayed event will be treated as if we
+    // moved from outside the window (no target) onto the target once it hydrates.
+    // Instead of mutating we could clone the event.
+    switch (domEventName) {
+      case 'focusin':
+        {
+          var focusEvent = nativeEvent;
+          queuedFocus = accumulateOrCreateContinuousQueuedReplayableEvent(queuedFocus, blockedOn, domEventName, eventSystemFlags, targetContainer, focusEvent);
+          return true;
+        }
+
+      case 'dragenter':
+        {
+          var dragEvent = nativeEvent;
+          queuedDrag = accumulateOrCreateContinuousQueuedReplayableEvent(queuedDrag, blockedOn, domEventName, eventSystemFlags, targetContainer, dragEvent);
+          return true;
+        }
+
+      case 'mouseover':
+        {
+          var mouseEvent = nativeEvent;
+          queuedMouse = accumulateOrCreateContinuousQueuedReplayableEvent(queuedMouse, blockedOn, domEventName, eventSystemFlags, targetContainer, mouseEvent);
+          return true;
+        }
+
+      case 'pointerover':
+        {
+          var pointerEvent = nativeEvent;
+          var pointerId = pointerEvent.pointerId;
+          queuedPointers.set(pointerId, accumulateOrCreateContinuousQueuedReplayableEvent(queuedPointers.get(pointerId) || null, blockedOn, domEventName, eventSystemFlags, targetContainer, pointerEvent));
+          return true;
+        }
+
+      case 'gotpointercapture':
+        {
+          var _pointerEvent = nativeEvent;
+          var _pointerId2 = _pointerEvent.pointerId;
+          queuedPointerCaptures.set(_pointerId2, accumulateOrCreateContinuousQueuedReplayableEvent(queuedPointerCaptures.get(_pointerId2) || null, blockedOn, domEventName, eventSystemFlags, targetContainer, _pointerEvent));
+          return true;
+        }
+    }
+
+    return false;
+  } // Check if this target is unblocked. Returns true if it's unblocked.
+
+  function attemptExplicitHydrationTarget(queuedTarget) {
+    // TODO: This function shares a lot of logic with attemptToDispatchEvent.
+    // Try to unify them. It's a bit tricky since it would require two return
+    // values.
+    var targetInst = getClosestInstanceFromNode(queuedTarget.target);
+
+    if (targetInst !== null) {
+      var nearestMounted = getNearestMountedFiber(targetInst);
+
+      if (nearestMounted !== null) {
+        var tag = nearestMounted.tag;
+
+        if (tag === SuspenseComponent) {
+          var instance = getSuspenseInstanceFromFiber(nearestMounted);
+
+          if (instance !== null) {
+            // We're blocked on hydrating this boundary.
+            // Increase its priority.
+            queuedTarget.blockedOn = instance;
+            attemptHydrationAtPriority(queuedTarget.lanePriority, function () {
+              unstable_runWithPriority(queuedTarget.priority, function () {
+                attemptHydrationAtCurrentPriority(nearestMounted);
+              });
+            });
+            return;
+          }
+        } else if (tag === HostRoot) {
+          var root = nearestMounted.stateNode;
+
+          if (root.hydrate) {
+            queuedTarget.blockedOn = getContainerFromFiber(nearestMounted); // We don't currently have a way to increase the priority of
+            // a root other than sync.
+
+            return;
+          }
+        }
+      }
+    }
+
+    queuedTarget.blockedOn = null;
+  }
+
+  function attemptReplayContinuousQueuedEvent(queuedEvent) {
+    if (queuedEvent.blockedOn !== null) {
+      return false;
+    }
+
+    var targetContainers = queuedEvent.targetContainers;
+
+    while (targetContainers.length > 0) {
+      var targetContainer = targetContainers[0];
+      var nextBlockedOn = attemptToDispatchEvent(queuedEvent.domEventName, queuedEvent.eventSystemFlags, targetContainer, queuedEvent.nativeEvent);
+
+      if (nextBlockedOn !== null) {
+        // We're still blocked. Try again later.
+        var _fiber3 = getInstanceFromNode(nextBlockedOn);
+
+        if (_fiber3 !== null) {
+          attemptContinuousHydration(_fiber3);
+        }
+
+        queuedEvent.blockedOn = nextBlockedOn;
+        return false;
+      } // This target container was successfully dispatched. Try the next.
+
+
+      targetContainers.shift();
+    }
+
+    return true;
+  }
+
+  function attemptReplayContinuousQueuedEventInMap(queuedEvent, key, map) {
+    if (attemptReplayContinuousQueuedEvent(queuedEvent)) {
+      map.delete(key);
+    }
+  }
+
+  function replayUnblockedEvents() {
+    hasScheduledReplayAttempt = false; // First replay discrete events.
+
+    while (queuedDiscreteEvents.length > 0) {
+      var nextDiscreteEvent = queuedDiscreteEvents[0];
+
+      if (nextDiscreteEvent.blockedOn !== null) {
+        // We're still blocked.
+        // Increase the priority of this boundary to unblock
+        // the next discrete event.
+        var _fiber4 = getInstanceFromNode(nextDiscreteEvent.blockedOn);
+
+        if (_fiber4 !== null) {
+          attemptUserBlockingHydration(_fiber4);
+        }
+
+        break;
+      }
+
+      var targetContainers = nextDiscreteEvent.targetContainers;
+
+      while (targetContainers.length > 0) {
+        var targetContainer = targetContainers[0];
+        var nextBlockedOn = attemptToDispatchEvent(nextDiscreteEvent.domEventName, nextDiscreteEvent.eventSystemFlags, targetContainer, nextDiscreteEvent.nativeEvent);
+
+        if (nextBlockedOn !== null) {
+          // We're still blocked. Try again later.
+          nextDiscreteEvent.blockedOn = nextBlockedOn;
+          break;
+        } // This target container was successfully dispatched. Try the next.
+
+
+        targetContainers.shift();
+      }
+
+      if (nextDiscreteEvent.blockedOn === null) {
+        // We've successfully replayed the first event. Let's try the next one.
+        queuedDiscreteEvents.shift();
+      }
+    } // Next replay any continuous events.
+
+
+    if (queuedFocus !== null && attemptReplayContinuousQueuedEvent(queuedFocus)) {
+      queuedFocus = null;
+    }
+
+    if (queuedDrag !== null && attemptReplayContinuousQueuedEvent(queuedDrag)) {
+      queuedDrag = null;
+    }
+
+    if (queuedMouse !== null && attemptReplayContinuousQueuedEvent(queuedMouse)) {
+      queuedMouse = null;
+    }
+
+    queuedPointers.forEach(attemptReplayContinuousQueuedEventInMap);
+    queuedPointerCaptures.forEach(attemptReplayContinuousQueuedEventInMap);
+  }
+
+  function scheduleCallbackIfUnblocked(queuedEvent, unblocked) {
+    if (queuedEvent.blockedOn === unblocked) {
+      queuedEvent.blockedOn = null;
+
+      if (!hasScheduledReplayAttempt) {
+        hasScheduledReplayAttempt = true; // Schedule a callback to attempt replaying as many events as are
+        // now unblocked. This first might not actually be unblocked yet.
+        // We could check it early to avoid scheduling an unnecessary callback.
+
+        unstable_scheduleCallback(unstable_NormalPriority, replayUnblockedEvents);
+      }
+    }
+  }
+
+  function retryIfBlockedOn(unblocked) {
+    // Mark anything that was blocked on this as no longer blocked
+    // and eligible for a replay.
+    if (queuedDiscreteEvents.length > 0) {
+      scheduleCallbackIfUnblocked(queuedDiscreteEvents[0], unblocked); // This is a exponential search for each boundary that commits. I think it's
+      // worth it because we expect very few discrete events to queue up and once
+      // we are actually fully unblocked it will be fast to replay them.
+
+      for (var i = 1; i < queuedDiscreteEvents.length; i++) {
+        var queuedEvent = queuedDiscreteEvents[i];
+
+        if (queuedEvent.blockedOn === unblocked) {
+          queuedEvent.blockedOn = null;
+        }
+      }
+    }
+
+    if (queuedFocus !== null) {
+      scheduleCallbackIfUnblocked(queuedFocus, unblocked);
+    }
+
+    if (queuedDrag !== null) {
+      scheduleCallbackIfUnblocked(queuedDrag, unblocked);
+    }
+
+    if (queuedMouse !== null) {
+      scheduleCallbackIfUnblocked(queuedMouse, unblocked);
+    }
+
+    var unblock = function (queuedEvent) {
+      return scheduleCallbackIfUnblocked(queuedEvent, unblocked);
+    };
+
+    queuedPointers.forEach(unblock);
+    queuedPointerCaptures.forEach(unblock);
+
+    for (var _i = 0; _i < queuedExplicitHydrationTargets.length; _i++) {
+      var queuedTarget = queuedExplicitHydrationTargets[_i];
+
+      if (queuedTarget.blockedOn === unblocked) {
+        queuedTarget.blockedOn = null;
+      }
+    }
+
+    while (queuedExplicitHydrationTargets.length > 0) {
+      var nextExplicitTarget = queuedExplicitHydrationTargets[0];
+
+      if (nextExplicitTarget.blockedOn !== null) {
+        // We're still blocked.
+        break;
+      } else {
+        attemptExplicitHydrationTarget(nextExplicitTarget);
+
+        if (nextExplicitTarget.blockedOn === null) {
+          // We're unblocked.
+          queuedExplicitHydrationTargets.shift();
+        }
+      }
+    }
+  }
+
+  var DiscreteEvent = 0;
+  var UserBlockingEvent = 1;
+  var ContinuousEvent = 2;
+
+  /**
+   * Generate a mapping of standard vendor prefixes using the defined style property and event name.
+   *
+   * @param {string} styleProp
+   * @param {string} eventName
+   * @returns {object}
+   */
+
+  function makePrefixMap(styleProp, eventName) {
+    var prefixes = {};
+    prefixes[styleProp.toLowerCase()] = eventName.toLowerCase();
+    prefixes['Webkit' + styleProp] = 'webkit' + eventName;
+    prefixes['Moz' + styleProp] = 'moz' + eventName;
+    return prefixes;
+  }
+  /**
+   * A list of event names to a configurable list of vendor prefixes.
+   */
+
+
+  var vendorPrefixes = {
+    animationend: makePrefixMap('Animation', 'AnimationEnd'),
+    animationiteration: makePrefixMap('Animation', 'AnimationIteration'),
+    animationstart: makePrefixMap('Animation', 'AnimationStart'),
+    transitionend: makePrefixMap('Transition', 'TransitionEnd')
+  };
+  /**
+   * Event names that have already been detected and prefixed (if applicable).
+   */
+
+  var prefixedEventNames = {};
+  /**
+   * Element to check for prefixes on.
+   */
+
+  var style = {};
+  /**
+   * Bootstrap if a DOM exists.
+   */
+
+  if (canUseDOM) {
+    style = document.createElement('div').style; // On some platforms, in particular some releases of Android 4.x,
+    // the un-prefixed "animation" and "transition" properties are defined on the
+    // style object but the events that fire will still be prefixed, so we need
+    // to check if the un-prefixed events are usable, and if not remove them from the map.
+
+    if (!('AnimationEvent' in window)) {
+      delete vendorPrefixes.animationend.animation;
+      delete vendorPrefixes.animationiteration.animation;
+      delete vendorPrefixes.animationstart.animation;
+    } // Same as above
+
+
+    if (!('TransitionEvent' in window)) {
+      delete vendorPrefixes.transitionend.transition;
+    }
+  }
+  /**
+   * Attempts to determine the correct vendor prefixed event name.
+   *
+   * @param {string} eventName
+   * @returns {string}
+   */
+
+
+  function getVendorPrefixedEventName(eventName) {
+    if (prefixedEventNames[eventName]) {
+      return prefixedEventNames[eventName];
+    } else if (!vendorPrefixes[eventName]) {
+      return eventName;
+    }
+
+    var prefixMap = vendorPrefixes[eventName];
+
+    for (var styleProp in prefixMap) {
+      if (prefixMap.hasOwnProperty(styleProp) && styleProp in style) {
+        return prefixedEventNames[eventName] = prefixMap[styleProp];
+      }
+    }
+
+    return eventName;
+  }
+
+  var ANIMATION_END = getVendorPrefixedEventName('animationend');
+  var ANIMATION_ITERATION = getVendorPrefixedEventName('animationiteration');
+  var ANIMATION_START = getVendorPrefixedEventName('animationstart');
+  var TRANSITION_END = getVendorPrefixedEventName('transitionend');
+
+  var topLevelEventsToReactNames = new Map();
+  var eventPriorities = new Map(); // We store most of the events in this module in pairs of two strings so we can re-use
+  // the code required to apply the same logic for event prioritization and that of the
+  // SimpleEventPlugin. This complicates things slightly, but the aim is to reduce code
+  // duplication (for which there would be quite a bit). For the events that are not needed
+  // for the SimpleEventPlugin (otherDiscreteEvents) we process them separately as an
+  // array of top level events.
+  // Lastly, we ignore prettier so we can keep the formatting sane.
+  // prettier-ignore
+
+  var discreteEventPairsForSimpleEventPlugin = ['cancel', 'cancel', 'click', 'click', 'close', 'close', 'contextmenu', 'contextMenu', 'copy', 'copy', 'cut', 'cut', 'auxclick', 'auxClick', 'dblclick', 'doubleClick', // Careful!
+  'dragend', 'dragEnd', 'dragstart', 'dragStart', 'drop', 'drop', 'focusin', 'focus', // Careful!
+  'focusout', 'blur', // Careful!
+  'input', 'input', 'invalid', 'invalid', 'keydown', 'keyDown', 'keypress', 'keyPress', 'keyup', 'keyUp', 'mousedown', 'mouseDown', 'mouseup', 'mouseUp', 'paste', 'paste', 'pause', 'pause', 'play', 'play', 'pointercancel', 'pointerCancel', 'pointerdown', 'pointerDown', 'pointerup', 'pointerUp', 'ratechange', 'rateChange', 'reset', 'reset', 'seeked', 'seeked', 'submit', 'submit', 'touchcancel', 'touchCancel', 'touchend', 'touchEnd', 'touchstart', 'touchStart', 'volumechange', 'volumeChange'];
+  var otherDiscreteEvents = ['change', 'selectionchange', 'textInput', 'compositionstart', 'compositionend', 'compositionupdate'];
+
+
+  var userBlockingPairsForSimpleEventPlugin = ['drag', 'drag', 'dragenter', 'dragEnter', 'dragexit', 'dragExit', 'dragleave', 'dragLeave', 'dragover', 'dragOver', 'mousemove', 'mouseMove', 'mouseout', 'mouseOut', 'mouseover', 'mouseOver', 'pointermove', 'pointerMove', 'pointerout', 'pointerOut', 'pointerover', 'pointerOver', 'scroll', 'scroll', 'toggle', 'toggle', 'touchmove', 'touchMove', 'wheel', 'wheel']; // prettier-ignore
+
+  var continuousPairsForSimpleEventPlugin = ['abort', 'abort', ANIMATION_END, 'animationEnd', ANIMATION_ITERATION, 'animationIteration', ANIMATION_START, 'animationStart', 'canplay', 'canPlay', 'canplaythrough', 'canPlayThrough', 'durationchange', 'durationChange', 'emptied', 'emptied', 'encrypted', 'encrypted', 'ended', 'ended', 'error', 'error', 'gotpointercapture', 'gotPointerCapture', 'load', 'load', 'loadeddata', 'loadedData', 'loadedmetadata', 'loadedMetadata', 'loadstart', 'loadStart', 'lostpointercapture', 'lostPointerCapture', 'playing', 'playing', 'progress', 'progress', 'seeking', 'seeking', 'stalled', 'stalled', 'suspend', 'suspend', 'timeupdate', 'timeUpdate', TRANSITION_END, 'transitionEnd', 'waiting', 'waiting'];
+  /**
+   * Turns
+   * ['abort', ...]
+   *
+   * into
+   *
+   * topLevelEventsToReactNames = new Map([
+   *   ['abort', 'onAbort'],
+   * ]);
+   *
+   * and registers them.
+   */
+
+  function registerSimplePluginEventsAndSetTheirPriorities(eventTypes, priority) {
+    // As the event types are in pairs of two, we need to iterate
+    // through in twos. The events are in pairs of two to save code
+    // and improve init perf of processing this array, as it will
+    // result in far fewer object allocations and property accesses
+    // if we only use three arrays to process all the categories of
+    // instead of tuples.
+    for (var i = 0; i < eventTypes.length; i += 2) {
+      var topEvent = eventTypes[i];
+      var event = eventTypes[i + 1];
+      var capitalizedEvent = event[0].toUpperCase() + event.slice(1);
+      var reactName = 'on' + capitalizedEvent;
+      eventPriorities.set(topEvent, priority);
+      topLevelEventsToReactNames.set(topEvent, reactName);
+      registerTwoPhaseEvent(reactName, [topEvent]);
+    }
+  }
+
+  function setEventPriorities(eventTypes, priority) {
+    for (var i = 0; i < eventTypes.length; i++) {
+      eventPriorities.set(eventTypes[i], priority);
+    }
+  }
+
+  function getEventPriorityForPluginSystem(domEventName) {
+    var priority = eventPriorities.get(domEventName); // Default to a ContinuousEvent. Note: we might
+    // want to warn if we can't detect the priority
+    // for the event.
+
+    return priority === undefined ? ContinuousEvent : priority;
+  }
+  function registerSimpleEvents() {
+    registerSimplePluginEventsAndSetTheirPriorities(discreteEventPairsForSimpleEventPlugin, DiscreteEvent);
+    registerSimplePluginEventsAndSetTheirPriorities(userBlockingPairsForSimpleEventPlugin, UserBlockingEvent);
+    registerSimplePluginEventsAndSetTheirPriorities(continuousPairsForSimpleEventPlugin, ContinuousEvent);
+    setEventPriorities(otherDiscreteEvents, DiscreteEvent);
+  }
+
+  var ReactInternals$2 = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
+  var _ReactInternals$Sched$1 = ReactInternals$2.SchedulerTracing,
+      __interactionsRef = _ReactInternals$Sched$1.__interactionsRef,
+      __subscriberRef = _ReactInternals$Sched$1.__subscriberRef,
+      unstable_clear = _ReactInternals$Sched$1.unstable_clear,
+      unstable_getCurrent = _ReactInternals$Sched$1.unstable_getCurrent,
+      unstable_getThreadID = _ReactInternals$Sched$1.unstable_getThreadID,
+      unstable_subscribe = _ReactInternals$Sched$1.unstable_subscribe,
+      unstable_trace = _ReactInternals$Sched$1.unstable_trace,
+      unstable_unsubscribe = _ReactInternals$Sched$1.unstable_unsubscribe,
+      unstable_wrap = _ReactInternals$Sched$1.unstable_wrap;
+
+  var Scheduler_now = unstable_now;
+
+  {
+    // Provide explicit error message when production+profiling bundle of e.g.
+    // react-dom is used with production (non-profiling) bundle of
+    // scheduler/tracing
+    if (!(__interactionsRef != null && __interactionsRef.current != null)) {
+      {
+        throw Error( "It is not supported to run the profiling version of a renderer (for example, `react-dom/profiling`) without also replacing the `scheduler/tracing` module with `scheduler/tracing-profiling`. Your bundler might have a setting for aliasing both modules. Learn more at https://reactjs.org/link/profiling" );
+      }
+    }
+  }
+  // ascending numbers so we can compare them like numbers. They start at 90 to
+  // avoid clashing with Scheduler's priorities.
+
+  var ImmediatePriority = 99;
+  var UserBlockingPriority = 98;
+  var NormalPriority = 97;
+  var LowPriority = 96;
+  var IdlePriority = 95; // NoPriority is the absence of priority. Also React-only.
+
+  var NoPriority = 90;
+  var initialTimeMs = Scheduler_now(); // If the initial timestamp is reasonably small, use Scheduler's `now` directly.
+
+  var SyncLanePriority = 15;
+  var SyncBatchedLanePriority = 14;
+  var InputDiscreteHydrationLanePriority = 13;
+  var InputDiscreteLanePriority = 12;
+  var InputContinuousHydrationLanePriority = 11;
+  var InputContinuousLanePriority = 10;
+  var DefaultHydrationLanePriority = 9;
+  var DefaultLanePriority = 8;
+  var TransitionHydrationPriority = 7;
+  var TransitionPriority = 6;
+  var RetryLanePriority = 5;
+  var SelectiveHydrationLanePriority = 4;
+  var IdleHydrationLanePriority = 3;
+  var IdleLanePriority = 2;
+  var OffscreenLanePriority = 1;
+  var NoLanePriority = 0;
+  var TotalLanes = 31;
+  var NoLanes =
+  /*                        */
+  0;
+  var NoLane =
+  /*                          */
+  0;
+  var SyncLane =
+  /*                        */
+  1;
+  var SyncBatchedLane =
+  /*                 */
+  2;
+  var InputDiscreteHydrationLane =
+  /*      */
+  4;
+  var InputDiscreteLanes =
+  /*                    */
+  24;
+  var InputContinuousHydrationLane =
+  /*           */
+  32;
+  var InputContinuousLanes =
+  /*                  */
+  192;
+  var DefaultHydrationLane =
+  /*            */
+  256;
+  var DefaultLanes =
+  /*                   */
+  3584;
+  var TransitionHydrationLane =
+  /*                */
+  4096;
+  var TransitionLanes =
+  /*                       */
+  4186112;
+  var RetryLanes =
+  /*                            */
+  62914560;
+  var SomeRetryLane =
+  /*                  */
+  33554432;
+  var SelectiveHydrationLane =
+  /*          */
+  67108864;
+  var NonIdleLanes =
+  /*                                 */
+  134217727;
+  var IdleHydrationLane =
+  /*               */
+  134217728;
+  var IdleLanes =
+  /*                             */
+  805306368;
+  var OffscreenLane =
+  /*                   */
+  1073741824;
+  var NoTimestamp = -1;
+  function setCurrentUpdateLanePriority(newLanePriority) {
+  } // "Registers" used to "return" multiple values
+  // Used by getHighestPriorityLanes and getNextLanes:
+
+  var return_highestLanePriority = DefaultLanePriority;
+
+  function getHighestPriorityLanes(lanes) {
+    if ((SyncLane & lanes) !== NoLanes) {
+      return_highestLanePriority = SyncLanePriority;
+      return SyncLane;
+    }
+
+    if ((SyncBatchedLane & lanes) !== NoLanes) {
+      return_highestLanePriority = SyncBatchedLanePriority;
+      return SyncBatchedLane;
+    }
+
+    if ((InputDiscreteHydrationLane & lanes) !== NoLanes) {
+      return_highestLanePriority = InputDiscreteHydrationLanePriority;
+      return InputDiscreteHydrationLane;
+    }
+
+    var inputDiscreteLanes = InputDiscreteLanes & lanes;
+
+    if (inputDiscreteLanes !== NoLanes) {
+      return_highestLanePriority = InputDiscreteLanePriority;
+      return inputDiscreteLanes;
+    }
+
+    if ((lanes & InputContinuousHydrationLane) !== NoLanes) {
+      return_highestLanePriority = InputContinuousHydrationLanePriority;
+      return InputContinuousHydrationLane;
+    }
+
+    var inputContinuousLanes = InputContinuousLanes & lanes;
+
+    if (inputContinuousLanes !== NoLanes) {
+      return_highestLanePriority = InputContinuousLanePriority;
+      return inputContinuousLanes;
+    }
+
+    if ((lanes & DefaultHydrationLane) !== NoLanes) {
+      return_highestLanePriority = DefaultHydrationLanePriority;
+      return DefaultHydrationLane;
+    }
+
+    var defaultLanes = DefaultLanes & lanes;
+
+    if (defaultLanes !== NoLanes) {
+      return_highestLanePriority = DefaultLanePriority;
+      return defaultLanes;
+    }
+
+    if ((lanes & TransitionHydrationLane) !== NoLanes) {
+      return_highestLanePriority = TransitionHydrationPriority;
+      return TransitionHydrationLane;
+    }
+
+    var transitionLanes = TransitionLanes & lanes;
+
+    if (transitionLanes !== NoLanes) {
+      return_highestLanePriority = TransitionPriority;
+      return transitionLanes;
+    }
+
+    var retryLanes = RetryLanes & lanes;
+
+    if (retryLanes !== NoLanes) {
+      return_highestLanePriority = RetryLanePriority;
+      return retryLanes;
+    }
+
+    if (lanes & SelectiveHydrationLane) {
+      return_highestLanePriority = SelectiveHydrationLanePriority;
+      return SelectiveHydrationLane;
+    }
+
+    if ((lanes & IdleHydrationLane) !== NoLanes) {
+      return_highestLanePriority = IdleHydrationLanePriority;
+      return IdleHydrationLane;
+    }
+
+    var idleLanes = IdleLanes & lanes;
+
+    if (idleLanes !== NoLanes) {
+      return_highestLanePriority = IdleLanePriority;
+      return idleLanes;
+    }
+
+    if ((OffscreenLane & lanes) !== NoLanes) {
+      return_highestLanePriority = OffscreenLanePriority;
+      return OffscreenLane;
+    }
+
+    {
+      error('Should have found matching lanes. This is a bug in React.');
+    } // This shouldn't be reachable, but as a fallback, return the entire bitmask.
+
+
+    return_highestLanePriority = DefaultLanePriority;
+    return lanes;
+  }
+
+  function schedulerPriorityToLanePriority(schedulerPriorityLevel) {
+    switch (schedulerPriorityLevel) {
+      case ImmediatePriority:
+        return SyncLanePriority;
+
+      case UserBlockingPriority:
+        return InputContinuousLanePriority;
+
+      case NormalPriority:
+      case LowPriority:
+        // TODO: Handle LowSchedulerPriority, somehow. Maybe the same lane as hydration.
+        return DefaultLanePriority;
+
+      case IdlePriority:
+        return IdleLanePriority;
+
+      default:
+        return NoLanePriority;
+    }
+  }
+  function lanePriorityToSchedulerPriority(lanePriority) {
+    switch (lanePriority) {
+      case SyncLanePriority:
+      case SyncBatchedLanePriority:
+        return ImmediatePriority;
+
+      case InputDiscreteHydrationLanePriority:
+      case InputDiscreteLanePriority:
+      case InputContinuousHydrationLanePriority:
+      case InputContinuousLanePriority:
+        return UserBlockingPriority;
+
+      case DefaultHydrationLanePriority:
+      case DefaultLanePriority:
+      case TransitionHydrationPriority:
+      case TransitionPriority:
+      case SelectiveHydrationLanePriority:
+      case RetryLanePriority:
+        return NormalPriority;
+
+      case IdleHydrationLanePriority:
+      case IdleLanePriority:
+      case OffscreenLanePriority:
+        return IdlePriority;
+
+      case NoLanePriority:
+        return NoPriority;
+
+      default:
+        {
+          {
+            throw Error( "Invalid update priority: " + lanePriority + ". This is a bug in React." );
+          }
+        }
+
+    }
+  }
+  function getNextLanes(root, wipLanes) {
+    // Early bailout if there's no pending work left.
+    var pendingLanes = root.pendingLanes;
+
+    if (pendingLanes === NoLanes) {
+      return_highestLanePriority = NoLanePriority;
+      return NoLanes;
+    }
+
+    var nextLanes = NoLanes;
+    var nextLanePriority = NoLanePriority;
+    var expiredLanes = root.expiredLanes;
+    var suspendedLanes = root.suspendedLanes;
+    var pingedLanes = root.pingedLanes; // Check if any work has expired.
+
+    if (expiredLanes !== NoLanes) {
+      nextLanes = expiredLanes;
+      nextLanePriority = return_highestLanePriority = SyncLanePriority;
+    } else {
+      // Do not work on any idle work until all the non-idle work has finished,
+      // even if the work is suspended.
+      var nonIdlePendingLanes = pendingLanes & NonIdleLanes;
+
+      if (nonIdlePendingLanes !== NoLanes) {
+        var nonIdleUnblockedLanes = nonIdlePendingLanes & ~suspendedLanes;
+
+        if (nonIdleUnblockedLanes !== NoLanes) {
+          nextLanes = getHighestPriorityLanes(nonIdleUnblockedLanes);
+          nextLanePriority = return_highestLanePriority;
+        } else {
+          var nonIdlePingedLanes = nonIdlePendingLanes & pingedLanes;
+
+          if (nonIdlePingedLanes !== NoLanes) {
+            nextLanes = getHighestPriorityLanes(nonIdlePingedLanes);
+            nextLanePriority = return_highestLanePriority;
+          }
+        }
+      } else {
+        // The only remaining work is Idle.
+        var unblockedLanes = pendingLanes & ~suspendedLanes;
+
+        if (unblockedLanes !== NoLanes) {
+          nextLanes = getHighestPriorityLanes(unblockedLanes);
+          nextLanePriority = return_highestLanePriority;
+        } else {
+          if (pingedLanes !== NoLanes) {
+            nextLanes = getHighestPriorityLanes(pingedLanes);
+            nextLanePriority = return_highestLanePriority;
+          }
+        }
+      }
+    }
+
+    if (nextLanes === NoLanes) {
+      // This should only be reachable if we're suspended
+      // TODO: Consider warning in this path if a fallback timer is not scheduled.
+      return NoLanes;
+    } // If there are higher priority lanes, we'll include them even if they
+    // are suspended.
+
+
+    nextLanes = pendingLanes & getEqualOrHigherPriorityLanes(nextLanes); // If we're already in the middle of a render, switching lanes will interrupt
+    // it and we'll lose our progress. We should only do this if the new lanes are
+    // higher priority.
+
+    if (wipLanes !== NoLanes && wipLanes !== nextLanes && // If we already suspended with a delay, then interrupting is fine. Don't
+    // bother waiting until the root is complete.
+    (wipLanes & suspendedLanes) === NoLanes) {
+      getHighestPriorityLanes(wipLanes);
+      var wipLanePriority = return_highestLanePriority;
+
+      if (nextLanePriority <= wipLanePriority) {
+        return wipLanes;
+      } else {
+        return_highestLanePriority = nextLanePriority;
+      }
+    } // Check for entangled lanes and add them to the batch.
+    //
+    // A lane is said to be entangled with another when it's not allowed to render
+    // in a batch that does not also include the other lane. Typically we do this
+    // when multiple updates have the same source, and we only want to respond to
+    // the most recent event from that source.
+    //
+    // Note that we apply entanglements *after* checking for partial work above.
+    // This means that if a lane is entangled during an interleaved event while
+    // it's already rendering, we won't interrupt it. This is intentional, since
+    // entanglement is usually "best effort": we'll try our best to render the
+    // lanes in the same batch, but it's not worth throwing out partially
+    // completed work in order to do it.
+    //
+    // For those exceptions where entanglement is semantically important, like
+    // useMutableSource, we should ensure that there is no partial work at the
+    // time we apply the entanglement.
+
+
+    var entangledLanes = root.entangledLanes;
+
+    if (entangledLanes !== NoLanes) {
+      var entanglements = root.entanglements;
+      var lanes = nextLanes & entangledLanes;
+
+      while (lanes > 0) {
+        var index = pickArbitraryLaneIndex(lanes);
+        var lane = 1 << index;
+        nextLanes |= entanglements[index];
+        lanes &= ~lane;
+      }
+    }
+
+    return nextLanes;
+  }
+  function getMostRecentEventTime(root, lanes) {
+    var eventTimes = root.eventTimes;
+    var mostRecentEventTime = NoTimestamp;
+
+    while (lanes > 0) {
+      var index = pickArbitraryLaneIndex(lanes);
+      var lane = 1 << index;
+      var eventTime = eventTimes[index];
+
+      if (eventTime > mostRecentEventTime) {
+        mostRecentEventTime = eventTime;
+      }
+
+      lanes &= ~lane;
+    }
+
+    return mostRecentEventTime;
+  }
+
+  function computeExpirationTime(lane, currentTime) {
+    // TODO: Expiration heuristic is constant per lane, so could use a map.
+    getHighestPriorityLanes(lane);
+    var priority = return_highestLanePriority;
+
+    if (priority >= InputContinuousLanePriority) {
+      // User interactions should expire slightly more quickly.
+      //
+      // NOTE: This is set to the corresponding constant as in Scheduler.js. When
+      // we made it larger, a product metric in www regressed, suggesting there's
+      // a user interaction that's being starved by a series of synchronous
+      // updates. If that theory is correct, the proper solution is to fix the
+      // starvation. However, this scenario supports the idea that expiration
+      // times are an important safeguard when starvation does happen.
+      //
+      // Also note that, in the case of user input specifically, this will soon no
+      // longer be an issue because we plan to make user input synchronous by
+      // default (until you enter `startTransition`, of course.)
+      //
+      // If weren't planning to make these updates synchronous soon anyway, I
+      // would probably make this number a configurable parameter.
+      return currentTime + 250;
+    } else if (priority >= TransitionPriority) {
+      return currentTime + 5000;
+    } else {
+      // Anything idle priority or lower should never expire.
+      return NoTimestamp;
+    }
+  }
+
+  function markStarvedLanesAsExpired(root, currentTime) {
+    // TODO: This gets called every time we yield. We can optimize by storing
+    // the earliest expiration time on the root. Then use that to quickly bail out
+    // of this function.
+    var pendingLanes = root.pendingLanes;
+    var suspendedLanes = root.suspendedLanes;
+    var pingedLanes = root.pingedLanes;
+    var expirationTimes = root.expirationTimes; // Iterate through the pending lanes and check if we've reached their
+    // expiration time. If so, we'll assume the update is being starved and mark
+    // it as expired to force it to finish.
+
+    var lanes = pendingLanes;
+
+    while (lanes > 0) {
+      var index = pickArbitraryLaneIndex(lanes);
+      var lane = 1 << index;
+      var expirationTime = expirationTimes[index];
+
+      if (expirationTime === NoTimestamp) {
+        // Found a pending lane with no expiration time. If it's not suspended, or
+        // if it's pinged, assume it's CPU-bound. Compute a new expiration time
+        // using the current time.
+        if ((lane & suspendedLanes) === NoLanes || (lane & pingedLanes) !== NoLanes) {
+          // Assumes timestamps are monotonically increasing.
+          expirationTimes[index] = computeExpirationTime(lane, currentTime);
+        }
+      } else if (expirationTime <= currentTime) {
+        // This lane expired
+        root.expiredLanes |= lane;
+      }
+
+      lanes &= ~lane;
+    }
+  } // This returns the highest priority pending lanes regardless of whether they
+  function getLanesToRetrySynchronouslyOnError(root) {
+    var everythingButOffscreen = root.pendingLanes & ~OffscreenLane;
+
+    if (everythingButOffscreen !== NoLanes) {
+      return everythingButOffscreen;
+    }
+
+    if (everythingButOffscreen & OffscreenLane) {
+      return OffscreenLane;
+    }
+
+    return NoLanes;
+  }
+  function returnNextLanesPriority() {
+    return return_highestLanePriority;
+  }
+  function includesNonIdleWork(lanes) {
+    return (lanes & NonIdleLanes) !== NoLanes;
+  }
+  function includesOnlyRetries(lanes) {
+    return (lanes & RetryLanes) === lanes;
+  }
+  function includesOnlyTransitions(lanes) {
+    return (lanes & TransitionLanes) === lanes;
+  } // To ensure consistency across multiple updates in the same event, this should
+  // be a pure function, so that it always returns the same lane for given inputs.
+
+  function findUpdateLane(lanePriority, wipLanes) {
+    switch (lanePriority) {
+      case NoLanePriority:
+        break;
+
+      case SyncLanePriority:
+        return SyncLane;
+
+      case SyncBatchedLanePriority:
+        return SyncBatchedLane;
+
+      case InputDiscreteLanePriority:
+        {
+          var _lane = pickArbitraryLane(InputDiscreteLanes & ~wipLanes);
+
+          if (_lane === NoLane) {
+            // Shift to the next priority level
+            return findUpdateLane(InputContinuousLanePriority, wipLanes);
+          }
+
+          return _lane;
+        }
+
+      case InputContinuousLanePriority:
+        {
+          var _lane2 = pickArbitraryLane(InputContinuousLanes & ~wipLanes);
+
+          if (_lane2 === NoLane) {
+            // Shift to the next priority level
+            return findUpdateLane(DefaultLanePriority, wipLanes);
+          }
+
+          return _lane2;
+        }
+
+      case DefaultLanePriority:
+        {
+          var _lane3 = pickArbitraryLane(DefaultLanes & ~wipLanes);
+
+          if (_lane3 === NoLane) {
+            // If all the default lanes are already being worked on, look for a
+            // lane in the transition range.
+            _lane3 = pickArbitraryLane(TransitionLanes & ~wipLanes);
+
+            if (_lane3 === NoLane) {
+              // All the transition lanes are taken, too. This should be very
+              // rare, but as a last resort, pick a default lane. This will have
+              // the effect of interrupting the current work-in-progress render.
+              _lane3 = pickArbitraryLane(DefaultLanes);
+            }
+          }
+
+          return _lane3;
+        }
+
+      case TransitionPriority: // Should be handled by findTransitionLane instead
+
+      case RetryLanePriority:
+        // Should be handled by findRetryLane instead
+        break;
+
+      case IdleLanePriority:
+        var lane = pickArbitraryLane(IdleLanes & ~wipLanes);
+
+        if (lane === NoLane) {
+          lane = pickArbitraryLane(IdleLanes);
+        }
+
+        return lane;
+    }
+
+    {
+      {
+        throw Error( "Invalid update priority: " + lanePriority + ". This is a bug in React." );
+      }
+    }
+  } // To ensure consistency across multiple updates in the same event, this should
+  // be pure function, so that it always returns the same lane for given inputs.
+
+  function findTransitionLane(wipLanes, pendingLanes) {
+    // First look for lanes that are completely unclaimed, i.e. have no
+    // pending work.
+    var lane = pickArbitraryLane(TransitionLanes & ~pendingLanes);
+
+    if (lane === NoLane) {
+      // If all lanes have pending work, look for a lane that isn't currently
+      // being worked on.
+      lane = pickArbitraryLane(TransitionLanes & ~wipLanes);
+
+      if (lane === NoLane) {
+        // If everything is being worked on, pick any lane. This has the
+        // effect of interrupting the current work-in-progress.
+        lane = pickArbitraryLane(TransitionLanes);
+      }
+    }
+
+    return lane;
+  } // To ensure consistency across multiple updates in the same event, this should
+  // be pure function, so that it always returns the same lane for given inputs.
+
+  function findRetryLane(wipLanes) {
+    // This is a fork of `findUpdateLane` designed specifically for Suspense
+    // "retries" — a special update that attempts to flip a Suspense boundary
+    // from its placeholder state to its primary/resolved state.
+    var lane = pickArbitraryLane(RetryLanes & ~wipLanes);
+
+    if (lane === NoLane) {
+      lane = pickArbitraryLane(RetryLanes);
+    }
+
+    return lane;
+  }
+
+  function getHighestPriorityLane(lanes) {
+    return lanes & -lanes;
+  }
+
+  function getLowestPriorityLane(lanes) {
+    // This finds the most significant non-zero bit.
+    var index = 31 - clz32(lanes);
+    return index < 0 ? NoLanes : 1 << index;
+  }
+
+  function getEqualOrHigherPriorityLanes(lanes) {
+    return (getLowestPriorityLane(lanes) << 1) - 1;
+  }
+
+  function pickArbitraryLane(lanes) {
+    // This wrapper function gets inlined. Only exists so to communicate that it
+    // doesn't matter which bit is selected; you can pick any bit without
+    // affecting the algorithms where its used. Here I'm using
+    // getHighestPriorityLane because it requires the fewest operations.
+    return getHighestPriorityLane(lanes);
+  }
+
+  function pickArbitraryLaneIndex(lanes) {
+    return 31 - clz32(lanes);
+  }
+
+  function laneToIndex(lane) {
+    return pickArbitraryLaneIndex(lane);
+  }
+
+  function includesSomeLane(a, b) {
+    return (a & b) !== NoLanes;
+  }
+  function isSubsetOfLanes(set, subset) {
+    return (set & subset) === subset;
+  }
+  function mergeLanes(a, b) {
+    return a | b;
+  }
+  function removeLanes(set, subset) {
+    return set & ~subset;
+  } // Seems redundant, but it changes the type from a single lane (used for
+  // updates) to a group of lanes (used for flushing work).
+
+  function laneToLanes(lane) {
+    return lane;
+  }
+  function higherPriorityLane(a, b) {
+    // This works because the bit ranges decrease in priority as you go left.
+    return a !== NoLane && a < b ? a : b;
+  }
+  function createLaneMap(initial) {
+    // Intentionally pushing one by one.
+    // https://v8.dev/blog/elements-kinds#avoid-creating-holes
+    var laneMap = [];
+
+    for (var i = 0; i < TotalLanes; i++) {
+      laneMap.push(initial);
+    }
+
+    return laneMap;
+  }
+  function markRootUpdated(root, updateLane, eventTime) {
+    root.pendingLanes |= updateLane; // TODO: Theoretically, any update to any lane can unblock any other lane. But
+    // it's not practical to try every single possible combination. We need a
+    // heuristic to decide which lanes to attempt to render, and in which batches.
+    // For now, we use the same heuristic as in the old ExpirationTimes model:
+    // retry any lane at equal or lower priority, but don't try updates at higher
+    // priority without also including the lower priority updates. This works well
+    // when considering updates across different priority levels, but isn't
+    // sufficient for updates within the same priority, since we want to treat
+    // those updates as parallel.
+    // Unsuspend any update at equal or lower priority.
+
+    var higherPriorityLanes = updateLane - 1; // Turns 0b1000 into 0b0111
+
+    root.suspendedLanes &= higherPriorityLanes;
+    root.pingedLanes &= higherPriorityLanes;
+    var eventTimes = root.eventTimes;
+    var index = laneToIndex(updateLane); // We can always overwrite an existing timestamp because we prefer the most
+    // recent event, and we assume time is monotonically increasing.
+
+    eventTimes[index] = eventTime;
+  }
+  function markRootSuspended(root, suspendedLanes) {
+    root.suspendedLanes |= suspendedLanes;
+    root.pingedLanes &= ~suspendedLanes; // The suspended lanes are no longer CPU-bound. Clear their expiration times.
+
+    var expirationTimes = root.expirationTimes;
+    var lanes = suspendedLanes;
+
+    while (lanes > 0) {
+      var index = pickArbitraryLaneIndex(lanes);
+      var lane = 1 << index;
+      expirationTimes[index] = NoTimestamp;
+      lanes &= ~lane;
+    }
+  }
+  function markRootPinged(root, pingedLanes, eventTime) {
+    root.pingedLanes |= root.suspendedLanes & pingedLanes;
+  }
+  function markDiscreteUpdatesExpired(root) {
+    root.expiredLanes |= InputDiscreteLanes & root.pendingLanes;
+  }
+  function hasDiscreteLanes(lanes) {
+    return (lanes & InputDiscreteLanes) !== NoLanes;
+  }
+  function markRootMutableRead(root, updateLane) {
+    root.mutableReadLanes |= updateLane & root.pendingLanes;
+  }
+  function markRootFinished(root, remainingLanes) {
+    var noLongerPendingLanes = root.pendingLanes & ~remainingLanes;
+    root.pendingLanes = remainingLanes; // Let's try everything again
+
+    root.suspendedLanes = 0;
+    root.pingedLanes = 0;
+    root.expiredLanes &= remainingLanes;
+    root.mutableReadLanes &= remainingLanes;
+    root.entangledLanes &= remainingLanes;
+    var entanglements = root.entanglements;
+    var eventTimes = root.eventTimes;
+    var expirationTimes = root.expirationTimes; // Clear the lanes that no longer have pending work
+
+    var lanes = noLongerPendingLanes;
+
+    while (lanes > 0) {
+      var index = pickArbitraryLaneIndex(lanes);
+      var lane = 1 << index;
+      entanglements[index] = NoLanes;
+      eventTimes[index] = NoTimestamp;
+      expirationTimes[index] = NoTimestamp;
+      lanes &= ~lane;
+    }
+  }
+  function markRootEntangled(root, entangledLanes) {
+    root.entangledLanes |= entangledLanes;
+    var entanglements = root.entanglements;
+    var lanes = entangledLanes;
+
+    while (lanes > 0) {
+      var index = pickArbitraryLaneIndex(lanes);
+      var lane = 1 << index;
+      entanglements[index] |= entangledLanes;
+      lanes &= ~lane;
+    }
+  }
+  var clz32 = Math.clz32 ? Math.clz32 : clz32Fallback; // Count leading zeros. Only used on lanes, so assume input is an integer.
+  // Based on:
+  // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32
+
+  var log = Math.log;
+  var LN2 = Math.LN2;
+
+  function clz32Fallback(lanes) {
+    if (lanes === 0) {
+      return 32;
+    }
+
+    return 31 - (log(lanes) / LN2 | 0) | 0;
+  }
+
+  // Intentionally not named imports because Rollup would use dynamic dispatch for
+  var UserBlockingPriority$1 = unstable_UserBlockingPriority,
+      runWithPriority = unstable_runWithPriority; // TODO: can we stop exporting these?
+
+  var _enabled = true; // This is exported in FB builds for use by legacy FB layer infra.
+  // We'd like to remove this but it's not clear if this is safe.
+
+  function setEnabled(enabled) {
+    _enabled = !!enabled;
+  }
+  function isEnabled() {
+    return _enabled;
+  }
+  function createEventListenerWrapperWithPriority(targetContainer, domEventName, eventSystemFlags) {
+    var eventPriority = getEventPriorityForPluginSystem(domEventName);
+    var listenerWrapper;
+
+    switch (eventPriority) {
+      case DiscreteEvent:
+        listenerWrapper = dispatchDiscreteEvent;
+        break;
+
+      case UserBlockingEvent:
+        listenerWrapper = dispatchUserBlockingUpdate;
+        break;
+
+      case ContinuousEvent:
+      default:
+        listenerWrapper = dispatchEvent;
+        break;
+    }
+
+    return listenerWrapper.bind(null, domEventName, eventSystemFlags, targetContainer);
+  }
+
+  function dispatchDiscreteEvent(domEventName, eventSystemFlags, container, nativeEvent) {
+    {
+      flushDiscreteUpdatesIfNeeded(nativeEvent.timeStamp);
+    }
+
+    discreteUpdates(dispatchEvent, domEventName, eventSystemFlags, container, nativeEvent);
+  }
+
+  function dispatchUserBlockingUpdate(domEventName, eventSystemFlags, container, nativeEvent) {
+    {
+      runWithPriority(UserBlockingPriority$1, dispatchEvent.bind(null, domEventName, eventSystemFlags, container, nativeEvent));
+    }
+  }
+
+  function dispatchEvent(domEventName, eventSystemFlags, targetContainer, nativeEvent) {
+    if (!_enabled) {
+      return;
+    }
+
+    var allowReplay = true;
+
+    {
+      // TODO: replaying capture phase events is currently broken
+      // because we used to do it during top-level native bubble handlers
+      // but now we use different bubble and capture handlers.
+      // In eager mode, we attach capture listeners early, so we need
+      // to filter them out until we fix the logic to handle them correctly.
+      // This could've been outside the flag but I put it inside to reduce risk.
+      allowReplay = (eventSystemFlags & IS_CAPTURE_PHASE) === 0;
+    }
+
+    if (allowReplay && hasQueuedDiscreteEvents() && isReplayableDiscreteEvent(domEventName)) {
+      // If we already have a queue of discrete events, and this is another discrete
+      // event, then we can't dispatch it regardless of its target, since they
+      // need to dispatch in order.
+      queueDiscreteEvent(null, // Flags that we're not actually blocked on anything as far as we know.
+      domEventName, eventSystemFlags, targetContainer, nativeEvent);
+      return;
+    }
+
+    var blockedOn = attemptToDispatchEvent(domEventName, eventSystemFlags, targetContainer, nativeEvent);
+
+    if (blockedOn === null) {
+      // We successfully dispatched this event.
+      if (allowReplay) {
+        clearIfContinuousEvent(domEventName, nativeEvent);
+      }
+
+      return;
+    }
+
+    if (allowReplay) {
+      if (isReplayableDiscreteEvent(domEventName)) {
+        // This this to be replayed later once the target is available.
+        queueDiscreteEvent(blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent);
+        return;
+      }
+
+      if (queueIfContinuousEvent(blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent)) {
+        return;
+      } // We need to clear only if we didn't queue because
+      // queueing is accummulative.
+
+
+      clearIfContinuousEvent(domEventName, nativeEvent);
+    } // This is not replayable so we'll invoke it but without a target,
+    // in case the event system needs to trace it.
+
+
+    dispatchEventForPluginEventSystem(domEventName, eventSystemFlags, nativeEvent, null, targetContainer);
+  } // Attempt dispatching an event. Returns a SuspenseInstance or Container if it's blocked.
+
+  function attemptToDispatchEvent(domEventName, eventSystemFlags, targetContainer, nativeEvent) {
+    // TODO: Warn if _enabled is false.
+    var nativeEventTarget = getEventTarget(nativeEvent);
+    var targetInst = getClosestInstanceFromNode(nativeEventTarget);
+
+    if (targetInst !== null) {
+      var nearestMounted = getNearestMountedFiber(targetInst);
+
+      if (nearestMounted === null) {
+        // This tree has been unmounted already. Dispatch without a target.
+        targetInst = null;
+      } else {
+        var tag = nearestMounted.tag;
+
+        if (tag === SuspenseComponent) {
+          var instance = getSuspenseInstanceFromFiber(nearestMounted);
+
+          if (instance !== null) {
+            // Queue the event to be replayed later. Abort dispatching since we
+            // don't want this event dispatched twice through the event system.
+            // TODO: If this is the first discrete event in the queue. Schedule an increased
+            // priority for this boundary.
+            return instance;
+          } // This shouldn't happen, something went wrong but to avoid blocking
+          // the whole system, dispatch the event without a target.
+          // TODO: Warn.
+
+
+          targetInst = null;
+        } else if (tag === HostRoot) {
+          var root = nearestMounted.stateNode;
+
+          if (root.hydrate) {
+            // If this happens during a replay something went wrong and it might block
+            // the whole system.
+            return getContainerFromFiber(nearestMounted);
+          }
+
+          targetInst = null;
+        } else if (nearestMounted !== targetInst) {
+          // If we get an event (ex: img onload) before committing that
+          // component's mount, ignore it for now (that is, treat it as if it was an
+          // event on a non-React tree). We might also consider queueing events and
+          // dispatching them after the mount.
+          targetInst = null;
+        }
+      }
+    }
+
+    dispatchEventForPluginEventSystem(domEventName, eventSystemFlags, nativeEvent, targetInst, targetContainer); // We're not blocked on anything.
+
+    return null;
+  }
+
+  function addEventBubbleListener(target, eventType, listener) {
+    target.addEventListener(eventType, listener, false);
+    return listener;
+  }
+  function addEventCaptureListener(target, eventType, listener) {
+    target.addEventListener(eventType, listener, true);
+    return listener;
+  }
+  function addEventCaptureListenerWithPassiveFlag(target, eventType, listener, passive) {
+    target.addEventListener(eventType, listener, {
+      capture: true,
+      passive: passive
+    });
+    return listener;
+  }
+  function addEventBubbleListenerWithPassiveFlag(target, eventType, listener, passive) {
+    target.addEventListener(eventType, listener, {
+      passive: passive
+    });
+    return listener;
+  }
+
+  /**
+   * These variables store information about text content of a target node,
+   * allowing comparison of content before and after a given event.
+   *
+   * Identify the node where selection currently begins, then observe
+   * both its text content and its current position in the DOM. Since the
+   * browser may natively replace the target node during composition, we can
+   * use its position to find its replacement.
+   *
+   *
+   */
+  var root = null;
+  var startText = null;
+  var fallbackText = null;
+  function initialize(nativeEventTarget) {
+    root = nativeEventTarget;
+    startText = getText();
+    return true;
+  }
+  function reset() {
+    root = null;
+    startText = null;
+    fallbackText = null;
+  }
+  function getData() {
+    if (fallbackText) {
+      return fallbackText;
+    }
+
+    var start;
+    var startValue = startText;
+    var startLength = startValue.length;
+    var end;
+    var endValue = getText();
+    var endLength = endValue.length;
+
+    for (start = 0; start < startLength; start++) {
+      if (startValue[start] !== endValue[start]) {
+        break;
+      }
+    }
+
+    var minEnd = startLength - start;
+
+    for (end = 1; end <= minEnd; end++) {
+      if (startValue[startLength - end] !== endValue[endLength - end]) {
+        break;
+      }
+    }
+
+    var sliceTail = end > 1 ? 1 - end : undefined;
+    fallbackText = endValue.slice(start, sliceTail);
+    return fallbackText;
+  }
+  function getText() {
+    if ('value' in root) {
+      return root.value;
+    }
+
+    return root.textContent;
+  }
+
+  /**
+   * `charCode` represents the actual "character code" and is safe to use with
+   * `String.fromCharCode`. As such, only keys that correspond to printable
+   * characters produce a valid `charCode`, the only exception to this is Enter.
+   * The Tab-key is considered non-printable and does not have a `charCode`,
+   * presumably because it does not produce a tab-character in browsers.
+   *
+   * @param {object} nativeEvent Native browser event.
+   * @return {number} Normalized `charCode` property.
+   */
+  function getEventCharCode(nativeEvent) {
+    var charCode;
+    var keyCode = nativeEvent.keyCode;
+
+    if ('charCode' in nativeEvent) {
+      charCode = nativeEvent.charCode; // FF does not set `charCode` for the Enter-key, check against `keyCode`.
+
+      if (charCode === 0 && keyCode === 13) {
+        charCode = 13;
+      }
+    } else {
+      // IE8 does not implement `charCode`, but `keyCode` has the correct value.
+      charCode = keyCode;
+    } // IE and Edge (on Windows) and Chrome / Safari (on Windows and Linux)
+    // report Enter as charCode 10 when ctrl is pressed.
+
+
+    if (charCode === 10) {
+      charCode = 13;
+    } // Some non-printable keys are reported in `charCode`/`keyCode`, discard them.
+    // Must not discard the (non-)printable Enter-key.
+
+
+    if (charCode >= 32 || charCode === 13) {
+      return charCode;
+    }
+
+    return 0;
+  }
+
+  function functionThatReturnsTrue() {
+    return true;
+  }
+
+  function functionThatReturnsFalse() {
+    return false;
+  } // This is intentionally a factory so that we have different returned constructors.
+  // If we had a single constructor, it would be megamorphic and engines would deopt.
+
+
+  function createSyntheticEvent(Interface) {
+    /**
+     * Synthetic events are dispatched by event plugins, typically in response to a
+     * top-level event delegation handler.
+     *
+     * These systems should generally use pooling to reduce the frequency of garbage
+     * collection. The system should check `isPersistent` to determine whether the
+     * event should be released into the pool after being dispatched. Users that
+     * need a persisted event should invoke `persist`.
+     *
+     * Synthetic events (and subclasses) implement the DOM Level 3 Events API by
+     * normalizing browser quirks. Subclasses do not necessarily have to implement a
+     * DOM interface; custom application-specific events can also subclass this.
+     */
+    function SyntheticBaseEvent(reactName, reactEventType, targetInst, nativeEvent, nativeEventTarget) {
+      this._reactName = reactName;
+      this._targetInst = targetInst;
+      this.type = reactEventType;
+      this.nativeEvent = nativeEvent;
+      this.target = nativeEventTarget;
+      this.currentTarget = null;
+
+      for (var _propName in Interface) {
+        if (!Interface.hasOwnProperty(_propName)) {
+          continue;
+        }
+
+        var normalize = Interface[_propName];
+
+        if (normalize) {
+          this[_propName] = normalize(nativeEvent);
+        } else {
+          this[_propName] = nativeEvent[_propName];
+        }
+      }
+
+      var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false;
+
+      if (defaultPrevented) {
+        this.isDefaultPrevented = functionThatReturnsTrue;
+      } else {
+        this.isDefaultPrevented = functionThatReturnsFalse;
+      }
+
+      this.isPropagationStopped = functionThatReturnsFalse;
+      return this;
+    }
+
+    _assign(SyntheticBaseEvent.prototype, {
+      preventDefault: function () {
+        this.defaultPrevented = true;
+        var event = this.nativeEvent;
+
+        if (!event) {
+          return;
+        }
+
+        if (event.preventDefault) {
+          event.preventDefault(); // $FlowFixMe - flow is not aware of `unknown` in IE
+        } else if (typeof event.returnValue !== 'unknown') {
+          event.returnValue = false;
+        }
+
+        this.isDefaultPrevented = functionThatReturnsTrue;
+      },
+      stopPropagation: function () {
+        var event = this.nativeEvent;
+
+        if (!event) {
+          return;
+        }
+
+        if (event.stopPropagation) {
+          event.stopPropagation(); // $FlowFixMe - flow is not aware of `unknown` in IE
+        } else if (typeof event.cancelBubble !== 'unknown') {
+          // The ChangeEventPlugin registers a "propertychange" event for
+          // IE. This event does not support bubbling or cancelling, and
+          // any references to cancelBubble throw "Member not found".  A
+          // typeof check of "unknown" circumvents this issue (and is also
+          // IE specific).
+          event.cancelBubble = true;
+        }
+
+        this.isPropagationStopped = functionThatReturnsTrue;
+      },
+
+      /**
+       * We release all dispatched `SyntheticEvent`s after each event loop, adding
+       * them back into the pool. This allows a way to hold onto a reference that
+       * won't be added back into the pool.
+       */
+      persist: function () {// Modern event system doesn't use pooling.
+      },
+
+      /**
+       * Checks if this event should be released back into the pool.
+       *
+       * @return {boolean} True if this should not be released, false otherwise.
+       */
+      isPersistent: functionThatReturnsTrue
+    });
+
+    return SyntheticBaseEvent;
+  }
+  /**
+   * @interface Event
+   * @see http://www.w3.org/TR/DOM-Level-3-Events/
+   */
+
+
+  var EventInterface = {
+    eventPhase: 0,
+    bubbles: 0,
+    cancelable: 0,
+    timeStamp: function (event) {
+      return event.timeStamp || Date.now();
+    },
+    defaultPrevented: 0,
+    isTrusted: 0
+  };
+  var SyntheticEvent = createSyntheticEvent(EventInterface);
+
+  var UIEventInterface = _assign({}, EventInterface, {
+    view: 0,
+    detail: 0
+  });
+
+  var SyntheticUIEvent = createSyntheticEvent(UIEventInterface);
+  var lastMovementX;
+  var lastMovementY;
+  var lastMouseEvent;
+
+  function updateMouseMovementPolyfillState(event) {
+    if (event !== lastMouseEvent) {
+      if (lastMouseEvent && event.type === 'mousemove') {
+        lastMovementX = event.screenX - lastMouseEvent.screenX;
+        lastMovementY = event.screenY - lastMouseEvent.screenY;
+      } else {
+        lastMovementX = 0;
+        lastMovementY = 0;
+      }
+
+      lastMouseEvent = event;
+    }
+  }
+  /**
+   * @interface MouseEvent
+   * @see http://www.w3.org/TR/DOM-Level-3-Events/
+   */
+
+
+  var MouseEventInterface = _assign({}, UIEventInterface, {
+    screenX: 0,
+    screenY: 0,
+    clientX: 0,
+    clientY: 0,
+    pageX: 0,
+    pageY: 0,
+    ctrlKey: 0,
+    shiftKey: 0,
+    altKey: 0,
+    metaKey: 0,
+    getModifierState: getEventModifierState,
+    button: 0,
+    buttons: 0,
+    relatedTarget: function (event) {
+      if (event.relatedTarget === undefined) return event.fromElement === event.srcElement ? event.toElement : event.fromElement;
+      return event.relatedTarget;
+    },
+    movementX: function (event) {
+      if ('movementX' in event) {
+        return event.movementX;
+      }
+
+      updateMouseMovementPolyfillState(event);
+      return lastMovementX;
+    },
+    movementY: function (event) {
+      if ('movementY' in event) {
+        return event.movementY;
+      } // Don't need to call updateMouseMovementPolyfillState() here
+      // because it's guaranteed to have already run when movementX
+      // was copied.
+
+
+      return lastMovementY;
+    }
+  });
+
+  var SyntheticMouseEvent = createSyntheticEvent(MouseEventInterface);
+  /**
+   * @interface DragEvent
+   * @see http://www.w3.org/TR/DOM-Level-3-Events/
+   */
+
+  var DragEventInterface = _assign({}, MouseEventInterface, {
+    dataTransfer: 0
+  });
+
+  var SyntheticDragEvent = createSyntheticEvent(DragEventInterface);
+  /**
+   * @interface FocusEvent
+   * @see http://www.w3.org/TR/DOM-Level-3-Events/
+   */
+
+  var FocusEventInterface = _assign({}, UIEventInterface, {
+    relatedTarget: 0
+  });
+
+  var SyntheticFocusEvent = createSyntheticEvent(FocusEventInterface);
+  /**
+   * @interface Event
+   * @see http://www.w3.org/TR/css3-animations/#AnimationEvent-interface
+   * @see https://developer.mozilla.org/en-US/docs/Web/API/AnimationEvent
+   */
+
+  var AnimationEventInterface = _assign({}, EventInterface, {
+    animationName: 0,
+    elapsedTime: 0,
+    pseudoElement: 0
+  });
+
+  var SyntheticAnimationEvent = createSyntheticEvent(AnimationEventInterface);
+  /**
+   * @interface Event
+   * @see http://www.w3.org/TR/clipboard-apis/
+   */
+
+  var ClipboardEventInterface = _assign({}, EventInterface, {
+    clipboardData: function (event) {
+      return 'clipboardData' in event ? event.clipboardData : window.clipboardData;
+    }
+  });
+
+  var SyntheticClipboardEvent = createSyntheticEvent(ClipboardEventInterface);
+  /**
+   * @interface Event
+   * @see http://www.w3.org/TR/DOM-Level-3-Events/#events-compositionevents
+   */
+
+  var CompositionEventInterface = _assign({}, EventInterface, {
+    data: 0
+  });
+
+  var SyntheticCompositionEvent = createSyntheticEvent(CompositionEventInterface);
+  /**
+   * @interface Event
+   * @see http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105
+   *      /#events-inputevents
+   */
+  // Happens to share the same list for now.
+
+  var SyntheticInputEvent = SyntheticCompositionEvent;
+  /**
+   * Normalization of deprecated HTML5 `key` values
+   * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names
+   */
+
+  var normalizeKey = {
+    Esc: 'Escape',
+    Spacebar: ' ',
+    Left: 'ArrowLeft',
+    Up: 'ArrowUp',
+    Right: 'ArrowRight',
+    Down: 'ArrowDown',
+    Del: 'Delete',
+    Win: 'OS',
+    Menu: 'ContextMenu',
+    Apps: 'ContextMenu',
+    Scroll: 'ScrollLock',
+    MozPrintableKey: 'Unidentified'
+  };
+  /**
+   * Translation from legacy `keyCode` to HTML5 `key`
+   * Only special keys supported, all others depend on keyboard layout or browser
+   * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names
+   */
+
+  var translateToKey = {
+    '8': 'Backspace',
+    '9': 'Tab',
+    '12': 'Clear',
+    '13': 'Enter',
+    '16': 'Shift',
+    '17': 'Control',
+    '18': 'Alt',
+    '19': 'Pause',
+    '20': 'CapsLock',
+    '27': 'Escape',
+    '32': ' ',
+    '33': 'PageUp',
+    '34': 'PageDown',
+    '35': 'End',
+    '36': 'Home',
+    '37': 'ArrowLeft',
+    '38': 'ArrowUp',
+    '39': 'ArrowRight',
+    '40': 'ArrowDown',
+    '45': 'Insert',
+    '46': 'Delete',
+    '112': 'F1',
+    '113': 'F2',
+    '114': 'F3',
+    '115': 'F4',
+    '116': 'F5',
+    '117': 'F6',
+    '118': 'F7',
+    '119': 'F8',
+    '120': 'F9',
+    '121': 'F10',
+    '122': 'F11',
+    '123': 'F12',
+    '144': 'NumLock',
+    '145': 'ScrollLock',
+    '224': 'Meta'
+  };
+  /**
+   * @param {object} nativeEvent Native browser event.
+   * @return {string} Normalized `key` property.
+   */
+
+  function getEventKey(nativeEvent) {
+    if (nativeEvent.key) {
+      // Normalize inconsistent values reported by browsers due to
+      // implementations of a working draft specification.
+      // FireFox implements `key` but returns `MozPrintableKey` for all
+      // printable characters (normalized to `Unidentified`), ignore it.
+      var key = normalizeKey[nativeEvent.key] || nativeEvent.key;
+
+      if (key !== 'Unidentified') {
+        return key;
+      }
+    } // Browser does not implement `key`, polyfill as much of it as we can.
+
+
+    if (nativeEvent.type === 'keypress') {
+      var charCode = getEventCharCode(nativeEvent); // The enter-key is technically both printable and non-printable and can
+      // thus be captured by `keypress`, no other non-printable key should.
+
+      return charCode === 13 ? 'Enter' : String.fromCharCode(charCode);
+    }
+
+    if (nativeEvent.type === 'keydown' || nativeEvent.type === 'keyup') {
+      // While user keyboard layout determines the actual meaning of each
+      // `keyCode` value, almost all function keys have a universal value.
+      return translateToKey[nativeEvent.keyCode] || 'Unidentified';
+    }
+
+    return '';
+  }
+  /**
+   * Translation from modifier key to the associated property in the event.
+   * @see http://www.w3.org/TR/DOM-Level-3-Events/#keys-Modifiers
+   */
+
+
+  var modifierKeyToProp = {
+    Alt: 'altKey',
+    Control: 'ctrlKey',
+    Meta: 'metaKey',
+    Shift: 'shiftKey'
+  }; // Older browsers (Safari <= 10, iOS Safari <= 10.2) do not support
+  // getModifierState. If getModifierState is not supported, we map it to a set of
+  // modifier keys exposed by the event. In this case, Lock-keys are not supported.
+
+  function modifierStateGetter(keyArg) {
+    var syntheticEvent = this;
+    var nativeEvent = syntheticEvent.nativeEvent;
+
+    if (nativeEvent.getModifierState) {
+      return nativeEvent.getModifierState(keyArg);
+    }
+
+    var keyProp = modifierKeyToProp[keyArg];
+    return keyProp ? !!nativeEvent[keyProp] : false;
+  }
+
+  function getEventModifierState(nativeEvent) {
+    return modifierStateGetter;
+  }
+  /**
+   * @interface KeyboardEvent
+   * @see http://www.w3.org/TR/DOM-Level-3-Events/
+   */
+
+
+  var KeyboardEventInterface = _assign({}, UIEventInterface, {
+    key: getEventKey,
+    code: 0,
+    location: 0,
+    ctrlKey: 0,
+    shiftKey: 0,
+    altKey: 0,
+    metaKey: 0,
+    repeat: 0,
+    locale: 0,
+    getModifierState: getEventModifierState,
+    // Legacy Interface
+    charCode: function (event) {
+      // `charCode` is the result of a KeyPress event and represents the value of
+      // the actual printable character.
+      // KeyPress is deprecated, but its replacement is not yet final and not
+      // implemented in any major browser. Only KeyPress has charCode.
+      if (event.type === 'keypress') {
+        return getEventCharCode(event);
+      }
+
+      return 0;
+    },
+    keyCode: function (event) {
+      // `keyCode` is the result of a KeyDown/Up event and represents the value of
+      // physical keyboard key.
+      // The actual meaning of the value depends on the users' keyboard layout
+      // which cannot be detected. Assuming that it is a US keyboard layout
+      // provides a surprisingly accurate mapping for US and European users.
+      // Due to this, it is left to the user to implement at this time.
+      if (event.type === 'keydown' || event.type === 'keyup') {
+        return event.keyCode;
+      }
+
+      return 0;
+    },
+    which: function (event) {
+      // `which` is an alias for either `keyCode` or `charCode` depending on the
+      // type of the event.
+      if (event.type === 'keypress') {
+        return getEventCharCode(event);
+      }
+
+      if (event.type === 'keydown' || event.type === 'keyup') {
+        return event.keyCode;
+      }
+
+      return 0;
+    }
+  });
+
+  var SyntheticKeyboardEvent = createSyntheticEvent(KeyboardEventInterface);
+  /**
+   * @interface PointerEvent
+   * @see http://www.w3.org/TR/pointerevents/
+   */
+
+  var PointerEventInterface = _assign({}, MouseEventInterface, {
+    pointerId: 0,
+    width: 0,
+    height: 0,
+    pressure: 0,
+    tangentialPressure: 0,
+    tiltX: 0,
+    tiltY: 0,
+    twist: 0,
+    pointerType: 0,
+    isPrimary: 0
+  });
+
+  var SyntheticPointerEvent = createSyntheticEvent(PointerEventInterface);
+  /**
+   * @interface TouchEvent
+   * @see http://www.w3.org/TR/touch-events/
+   */
+
+  var TouchEventInterface = _assign({}, UIEventInterface, {
+    touches: 0,
+    targetTouches: 0,
+    changedTouches: 0,
+    altKey: 0,
+    metaKey: 0,
+    ctrlKey: 0,
+    shiftKey: 0,
+    getModifierState: getEventModifierState
+  });
+
+  var SyntheticTouchEvent = createSyntheticEvent(TouchEventInterface);
+  /**
+   * @interface Event
+   * @see http://www.w3.org/TR/2009/WD-css3-transitions-20090320/#transition-events-
+   * @see https://developer.mozilla.org/en-US/docs/Web/API/TransitionEvent
+   */
+
+  var TransitionEventInterface = _assign({}, EventInterface, {
+    propertyName: 0,
+    elapsedTime: 0,
+    pseudoElement: 0
+  });
+
+  var SyntheticTransitionEvent = createSyntheticEvent(TransitionEventInterface);
+  /**
+   * @interface WheelEvent
+   * @see http://www.w3.org/TR/DOM-Level-3-Events/
+   */
+
+  var WheelEventInterface = _assign({}, MouseEventInterface, {
+    deltaX: function (event) {
+      return 'deltaX' in event ? event.deltaX : // Fallback to `wheelDeltaX` for Webkit and normalize (right is positive).
+      'wheelDeltaX' in event ? -event.wheelDeltaX : 0;
+    },
+    deltaY: function (event) {
+      return 'deltaY' in event ? event.deltaY : // Fallback to `wheelDeltaY` for Webkit and normalize (down is positive).
+      'wheelDeltaY' in event ? -event.wheelDeltaY : // Fallback to `wheelDelta` for IE<9 and normalize (down is positive).
+      'wheelDelta' in event ? -event.wheelDelta : 0;
+    },
+    deltaZ: 0,
+    // Browsers without "deltaMode" is reporting in raw wheel delta where one
+    // notch on the scroll is always +/- 120, roughly equivalent to pixels.
+    // A good approximation of DOM_DELTA_LINE (1) is 5% of viewport size or
+    // ~40 pixels, for DOM_DELTA_SCREEN (2) it is 87.5% of viewport size.
+    deltaMode: 0
+  });
+
+  var SyntheticWheelEvent = createSyntheticEvent(WheelEventInterface);
+
+  var END_KEYCODES = [9, 13, 27, 32]; // Tab, Return, Esc, Space
+
+  var START_KEYCODE = 229;
+  var canUseCompositionEvent = canUseDOM && 'CompositionEvent' in window;
+  var documentMode = null;
+
+  if (canUseDOM && 'documentMode' in document) {
+    documentMode = document.documentMode;
+  } // Webkit offers a very useful `textInput` event that can be used to
+  // directly represent `beforeInput`. The IE `textinput` event is not as
+  // useful, so we don't use it.
+
+
+  var canUseTextInputEvent = canUseDOM && 'TextEvent' in window && !documentMode; // In IE9+, we have access to composition events, but the data supplied
+  // by the native compositionend event may be incorrect. Japanese ideographic
+  // spaces, for instance (\u3000) are not recorded correctly.
+
+  var useFallbackCompositionData = canUseDOM && (!canUseCompositionEvent || documentMode && documentMode > 8 && documentMode <= 11);
+  var SPACEBAR_CODE = 32;
+  var SPACEBAR_CHAR = String.fromCharCode(SPACEBAR_CODE);
+
+  function registerEvents() {
+    registerTwoPhaseEvent('onBeforeInput', ['compositionend', 'keypress', 'textInput', 'paste']);
+    registerTwoPhaseEvent('onCompositionEnd', ['compositionend', 'focusout', 'keydown', 'keypress', 'keyup', 'mousedown']);
+    registerTwoPhaseEvent('onCompositionStart', ['compositionstart', 'focusout', 'keydown', 'keypress', 'keyup', 'mousedown']);
+    registerTwoPhaseEvent('onCompositionUpdate', ['compositionupdate', 'focusout', 'keydown', 'keypress', 'keyup', 'mousedown']);
+  } // Track whether we've ever handled a keypress on the space key.
+
+
+  var hasSpaceKeypress = false;
+  /**
+   * Return whether a native keypress event is assumed to be a command.
+   * This is required because Firefox fires `keypress` events for key commands
+   * (cut, copy, select-all, etc.) even though no character is inserted.
+   */
+
+  function isKeypressCommand(nativeEvent) {
+    return (nativeEvent.ctrlKey || nativeEvent.altKey || nativeEvent.metaKey) && // ctrlKey && altKey is equivalent to AltGr, and is not a command.
+    !(nativeEvent.ctrlKey && nativeEvent.altKey);
+  }
+  /**
+   * Translate native top level events into event types.
+   */
+
+
+  function getCompositionEventType(domEventName) {
+    switch (domEventName) {
+      case 'compositionstart':
+        return 'onCompositionStart';
+
+      case 'compositionend':
+        return 'onCompositionEnd';
+
+      case 'compositionupdate':
+        return 'onCompositionUpdate';
+    }
+  }
+  /**
+   * Does our fallback best-guess model think this event signifies that
+   * composition has begun?
+   */
+
+
+  function isFallbackCompositionStart(domEventName, nativeEvent) {
+    return domEventName === 'keydown' && nativeEvent.keyCode === START_KEYCODE;
+  }
+  /**
+   * Does our fallback mode think that this event is the end of composition?
+   */
+
+
+  function isFallbackCompositionEnd(domEventName, nativeEvent) {
+    switch (domEventName) {
+      case 'keyup':
+        // Command keys insert or clear IME input.
+        return END_KEYCODES.indexOf(nativeEvent.keyCode) !== -1;
+
+      case 'keydown':
+        // Expect IME keyCode on each keydown. If we get any other
+        // code we must have exited earlier.
+        return nativeEvent.keyCode !== START_KEYCODE;
+
+      case 'keypress':
+      case 'mousedown':
+      case 'focusout':
+        // Events are not possible without cancelling IME.
+        return true;
+
+      default:
+        return false;
+    }
+  }
+  /**
+   * Google Input Tools provides composition data via a CustomEvent,
+   * with the `data` property populated in the `detail` object. If this
+   * is available on the event object, use it. If not, this is a plain
+   * composition event and we have nothing special to extract.
+   *
+   * @param {object} nativeEvent
+   * @return {?string}
+   */
+
+
+  function getDataFromCustomEvent(nativeEvent) {
+    var detail = nativeEvent.detail;
+
+    if (typeof detail === 'object' && 'data' in detail) {
+      return detail.data;
+    }
+
+    return null;
+  }
+  /**
+   * Check if a composition event was triggered by Korean IME.
+   * Our fallback mode does not work well with IE's Korean IME,
+   * so just use native composition events when Korean IME is used.
+   * Although CompositionEvent.locale property is deprecated,
+   * it is available in IE, where our fallback mode is enabled.
+   *
+   * @param {object} nativeEvent
+   * @return {boolean}
+   */
+
+
+  function isUsingKoreanIME(nativeEvent) {
+    return nativeEvent.locale === 'ko';
+  } // Track the current IME composition status, if any.
+
+
+  var isComposing = false;
+  /**
+   * @return {?object} A SyntheticCompositionEvent.
+   */
+
+  function extractCompositionEvent(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget) {
+    var eventType;
+    var fallbackData;
+
+    if (canUseCompositionEvent) {
+      eventType = getCompositionEventType(domEventName);
+    } else if (!isComposing) {
+      if (isFallbackCompositionStart(domEventName, nativeEvent)) {
+        eventType = 'onCompositionStart';
+      }
+    } else if (isFallbackCompositionEnd(domEventName, nativeEvent)) {
+      eventType = 'onCompositionEnd';
+    }
+
+    if (!eventType) {
+      return null;
+    }
+
+    if (useFallbackCompositionData && !isUsingKoreanIME(nativeEvent)) {
+      // The current composition is stored statically and must not be
+      // overwritten while composition continues.
+      if (!isComposing && eventType === 'onCompositionStart') {
+        isComposing = initialize(nativeEventTarget);
+      } else if (eventType === 'onCompositionEnd') {
+        if (isComposing) {
+          fallbackData = getData();
+        }
+      }
+    }
+
+    var listeners = accumulateTwoPhaseListeners(targetInst, eventType);
+
+    if (listeners.length > 0) {
+      var event = new SyntheticCompositionEvent(eventType, domEventName, null, nativeEvent, nativeEventTarget);
+      dispatchQueue.push({
+        event: event,
+        listeners: listeners
+      });
+
+      if (fallbackData) {
+        // Inject data generated from fallback path into the synthetic event.
+        // This matches the property of native CompositionEventInterface.
+        event.data = fallbackData;
+      } else {
+        var customData = getDataFromCustomEvent(nativeEvent);
+
+        if (customData !== null) {
+          event.data = customData;
+        }
+      }
+    }
+  }
+
+  function getNativeBeforeInputChars(domEventName, nativeEvent) {
+    switch (domEventName) {
+      case 'compositionend':
+        return getDataFromCustomEvent(nativeEvent);
+
+      case 'keypress':
+        /**
+         * If native `textInput` events are available, our goal is to make
+         * use of them. However, there is a special case: the spacebar key.
+         * In Webkit, preventing default on a spacebar `textInput` event
+         * cancels character insertion, but it *also* causes the browser
+         * to fall back to its default spacebar behavior of scrolling the
+         * page.
+         *
+         * Tracking at:
+         * https://code.google.com/p/chromium/issues/detail?id=355103
+         *
+         * To avoid this issue, use the keypress event as if no `textInput`
+         * event is available.
+         */
+        var which = nativeEvent.which;
+
+        if (which !== SPACEBAR_CODE) {
+          return null;
+        }
+
+        hasSpaceKeypress = true;
+        return SPACEBAR_CHAR;
+
+      case 'textInput':
+        // Record the characters to be added to the DOM.
+        var chars = nativeEvent.data; // If it's a spacebar character, assume that we have already handled
+        // it at the keypress level and bail immediately. Android Chrome
+        // doesn't give us keycodes, so we need to ignore it.
+
+        if (chars === SPACEBAR_CHAR && hasSpaceKeypress) {
+          return null;
+        }
+
+        return chars;
+
+      default:
+        // For other native event types, do nothing.
+        return null;
+    }
+  }
+  /**
+   * For browsers that do not provide the `textInput` event, extract the
+   * appropriate string to use for SyntheticInputEvent.
+   */
+
+
+  function getFallbackBeforeInputChars(domEventName, nativeEvent) {
+    // If we are currently composing (IME) and using a fallback to do so,
+    // try to extract the composed characters from the fallback object.
+    // If composition event is available, we extract a string only at
+    // compositionevent, otherwise extract it at fallback events.
+    if (isComposing) {
+      if (domEventName === 'compositionend' || !canUseCompositionEvent && isFallbackCompositionEnd(domEventName, nativeEvent)) {
+        var chars = getData();
+        reset();
+        isComposing = false;
+        return chars;
+      }
+
+      return null;
+    }
+
+    switch (domEventName) {
+      case 'paste':
+        // If a paste event occurs after a keypress, throw out the input
+        // chars. Paste events should not lead to BeforeInput events.
+        return null;
+
+      case 'keypress':
+        /**
+         * As of v27, Firefox may fire keypress events even when no character
+         * will be inserted. A few possibilities:
+         *
+         * - `which` is `0`. Arrow keys, Esc key, etc.
+         *
+         * - `which` is the pressed key code, but no char is available.
+         *   Ex: 'AltGr + d` in Polish. There is no modified character for
+         *   this key combination and no character is inserted into the
+         *   document, but FF fires the keypress for char code `100` anyway.
+         *   No `input` event will occur.
+         *
+         * - `which` is the pressed key code, but a command combination is
+         *   being used. Ex: `Cmd+C`. No character is inserted, and no
+         *   `input` event will occur.
+         */
+        if (!isKeypressCommand(nativeEvent)) {
+          // IE fires the `keypress` event when a user types an emoji via
+          // Touch keyboard of Windows.  In such a case, the `char` property
+          // holds an emoji character like `\uD83D\uDE0A`.  Because its length
+          // is 2, the property `which` does not represent an emoji correctly.
+          // In such a case, we directly return the `char` property instead of
+          // using `which`.
+          if (nativeEvent.char && nativeEvent.char.length > 1) {
+            return nativeEvent.char;
+          } else if (nativeEvent.which) {
+            return String.fromCharCode(nativeEvent.which);
+          }
+        }
+
+        return null;
+
+      case 'compositionend':
+        return useFallbackCompositionData && !isUsingKoreanIME(nativeEvent) ? null : nativeEvent.data;
+
+      default:
+        return null;
+    }
+  }
+  /**
+   * Extract a SyntheticInputEvent for `beforeInput`, based on either native
+   * `textInput` or fallback behavior.
+   *
+   * @return {?object} A SyntheticInputEvent.
+   */
+
+
+  function extractBeforeInputEvent(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget) {
+    var chars;
+
+    if (canUseTextInputEvent) {
+      chars = getNativeBeforeInputChars(domEventName, nativeEvent);
+    } else {
+      chars = getFallbackBeforeInputChars(domEventName, nativeEvent);
+    } // If no characters are being inserted, no BeforeInput event should
+    // be fired.
+
+
+    if (!chars) {
+      return null;
+    }
+
+    var listeners = accumulateTwoPhaseListeners(targetInst, 'onBeforeInput');
+
+    if (listeners.length > 0) {
+      var event = new SyntheticInputEvent('onBeforeInput', 'beforeinput', null, nativeEvent, nativeEventTarget);
+      dispatchQueue.push({
+        event: event,
+        listeners: listeners
+      });
+      event.data = chars;
+    }
+  }
+  /**
+   * Create an `onBeforeInput` event to match
+   * http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105/#events-inputevents.
+   *
+   * This event plugin is based on the native `textInput` event
+   * available in Chrome, Safari, Opera, and IE. This event fires after
+   * `onKeyPress` and `onCompositionEnd`, but before `onInput`.
+   *
+   * `beforeInput` is spec'd but not implemented in any browsers, and
+   * the `input` event does not provide any useful information about what has
+   * actually been added, contrary to the spec. Thus, `textInput` is the best
+   * available event to identify the characters that have actually been inserted
+   * into the target node.
+   *
+   * This plugin is also responsible for emitting `composition` events, thus
+   * allowing us to share composition fallback code for both `beforeInput` and
+   * `composition` event types.
+   */
+
+
+  function extractEvents(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags, targetContainer) {
+    extractCompositionEvent(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget);
+    extractBeforeInputEvent(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget);
+  }
+
+  /**
+   * @see http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary
+   */
+  var supportedInputTypes = {
+    color: true,
+    date: true,
+    datetime: true,
+    'datetime-local': true,
+    email: true,
+    month: true,
+    number: true,
+    password: true,
+    range: true,
+    search: true,
+    tel: true,
+    text: true,
+    time: true,
+    url: true,
+    week: true
+  };
+
+  function isTextInputElement(elem) {
+    var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();
+
+    if (nodeName === 'input') {
+      return !!supportedInputTypes[elem.type];
+    }
+
+    if (nodeName === 'textarea') {
+      return true;
+    }
+
+    return false;
+  }
+
+  /**
+   * Checks if an event is supported in the current execution environment.
+   *
+   * NOTE: This will not work correctly for non-generic events such as `change`,
+   * `reset`, `load`, `error`, and `select`.
+   *
+   * Borrows from Modernizr.
+   *
+   * @param {string} eventNameSuffix Event name, e.g. "click".
+   * @return {boolean} True if the event is supported.
+   * @internal
+   * @license Modernizr 3.0.0pre (Custom Build) | MIT
+   */
+
+  function isEventSupported(eventNameSuffix) {
+    if (!canUseDOM) {
+      return false;
+    }
+
+    var eventName = 'on' + eventNameSuffix;
+    var isSupported = (eventName in document);
+
+    if (!isSupported) {
+      var element = document.createElement('div');
+      element.setAttribute(eventName, 'return;');
+      isSupported = typeof element[eventName] === 'function';
+    }
+
+    return isSupported;
+  }
+
+  function registerEvents$1() {
+    registerTwoPhaseEvent('onChange', ['change', 'click', 'focusin', 'focusout', 'input', 'keydown', 'keyup', 'selectionchange']);
+  }
+
+  function createAndAccumulateChangeEvent(dispatchQueue, inst, nativeEvent, target) {
+    // Flag this event loop as needing state restore.
+    enqueueStateRestore(target);
+    var listeners = accumulateTwoPhaseListeners(inst, 'onChange');
+
+    if (listeners.length > 0) {
+      var event = new SyntheticEvent('onChange', 'change', null, nativeEvent, target);
+      dispatchQueue.push({
+        event: event,
+        listeners: listeners
+      });
+    }
+  }
+  /**
+   * For IE shims
+   */
+
+
+  var activeElement = null;
+  var activeElementInst = null;
+  /**
+   * SECTION: handle `change` event
+   */
+
+  function shouldUseChangeEvent(elem) {
+    var nodeName = elem.nodeName && elem.nodeName.toLowerCase();
+    return nodeName === 'select' || nodeName === 'input' && elem.type === 'file';
+  }
+
+  function manualDispatchChangeEvent(nativeEvent) {
+    var dispatchQueue = [];
+    createAndAccumulateChangeEvent(dispatchQueue, activeElementInst, nativeEvent, getEventTarget(nativeEvent)); // If change and propertychange bubbled, we'd just bind to it like all the
+    // other events and have it go through ReactBrowserEventEmitter. Since it
+    // doesn't, we manually listen for the events and so we have to enqueue and
+    // process the abstract event manually.
+    //
+    // Batching is necessary here in order to ensure that all event handlers run
+    // before the next rerender (including event handlers attached to ancestor
+    // elements instead of directly on the input). Without this, controlled
+    // components don't work properly in conjunction with event bubbling because
+    // the component is rerendered and the value reverted before all the event
+    // handlers can run. See https://github.com/facebook/react/issues/708.
+
+    batchedUpdates(runEventInBatch, dispatchQueue);
+  }
+
+  function runEventInBatch(dispatchQueue) {
+    processDispatchQueue(dispatchQueue, 0);
+  }
+
+  function getInstIfValueChanged(targetInst) {
+    var targetNode = getNodeFromInstance(targetInst);
+
+    if (updateValueIfChanged(targetNode)) {
+      return targetInst;
+    }
+  }
+
+  function getTargetInstForChangeEvent(domEventName, targetInst) {
+    if (domEventName === 'change') {
+      return targetInst;
+    }
+  }
+  /**
+   * SECTION: handle `input` event
+   */
+
+
+  var isInputEventSupported = false;
+
+  if (canUseDOM) {
+    // IE9 claims to support the input event but fails to trigger it when
+    // deleting text, so we ignore its input events.
+    isInputEventSupported = isEventSupported('input') && (!document.documentMode || document.documentMode > 9);
+  }
+  /**
+   * (For IE <=9) Starts tracking propertychange events on the passed-in element
+   * and override the value property so that we can distinguish user events from
+   * value changes in JS.
+   */
+
+
+  function startWatchingForValueChange(target, targetInst) {
+    activeElement = target;
+    activeElementInst = targetInst;
+    activeElement.attachEvent('onpropertychange', handlePropertyChange);
+  }
+  /**
+   * (For IE <=9) Removes the event listeners from the currently-tracked element,
+   * if any exists.
+   */
+
+
+  function stopWatchingForValueChange() {
+    if (!activeElement) {
+      return;
+    }
+
+    activeElement.detachEvent('onpropertychange', handlePropertyChange);
+    activeElement = null;
+    activeElementInst = null;
+  }
+  /**
+   * (For IE <=9) Handles a propertychange event, sending a `change` event if
+   * the value of the active element has changed.
+   */
+
+
+  function handlePropertyChange(nativeEvent) {
+    if (nativeEvent.propertyName !== 'value') {
+      return;
+    }
+
+    if (getInstIfValueChanged(activeElementInst)) {
+      manualDispatchChangeEvent(nativeEvent);
+    }
+  }
+
+  function handleEventsForInputEventPolyfill(domEventName, target, targetInst) {
+    if (domEventName === 'focusin') {
+      // In IE9, propertychange fires for most input events but is buggy and
+      // doesn't fire when text is deleted, but conveniently, selectionchange
+      // appears to fire in all of the remaining cases so we catch those and
+      // forward the event if the value has changed
+      // In either case, we don't want to call the event handler if the value
+      // is changed from JS so we redefine a setter for `.value` that updates
+      // our activeElementValue variable, allowing us to ignore those changes
+      //
+      // stopWatching() should be a noop here but we call it just in case we
+      // missed a blur event somehow.
+      stopWatchingForValueChange();
+      startWatchingForValueChange(target, targetInst);
+    } else if (domEventName === 'focusout') {
+      stopWatchingForValueChange();
+    }
+  } // For IE8 and IE9.
+
+
+  function getTargetInstForInputEventPolyfill(domEventName, targetInst) {
+    if (domEventName === 'selectionchange' || domEventName === 'keyup' || domEventName === 'keydown') {
+      // On the selectionchange event, the target is just document which isn't
+      // helpful for us so just check activeElement instead.
+      //
+      // 99% of the time, keydown and keyup aren't necessary. IE8 fails to fire
+      // propertychange on the first input event after setting `value` from a
+      // script and fires only keydown, keypress, keyup. Catching keyup usually
+      // gets it and catching keydown lets us fire an event for the first
+      // keystroke if user does a key repeat (it'll be a little delayed: right
+      // before the second keystroke). Other input methods (e.g., paste) seem to
+      // fire selectionchange normally.
+      return getInstIfValueChanged(activeElementInst);
+    }
+  }
+  /**
+   * SECTION: handle `click` event
+   */
+
+
+  function shouldUseClickEvent(elem) {
+    // Use the `click` event to detect changes to checkbox and radio inputs.
+    // This approach works across all browsers, whereas `change` does not fire
+    // until `blur` in IE8.
+    var nodeName = elem.nodeName;
+    return nodeName && nodeName.toLowerCase() === 'input' && (elem.type === 'checkbox' || elem.type === 'radio');
+  }
+
+  function getTargetInstForClickEvent(domEventName, targetInst) {
+    if (domEventName === 'click') {
+      return getInstIfValueChanged(targetInst);
+    }
+  }
+
+  function getTargetInstForInputOrChangeEvent(domEventName, targetInst) {
+    if (domEventName === 'input' || domEventName === 'change') {
+      return getInstIfValueChanged(targetInst);
+    }
+  }
+
+  function handleControlledInputBlur(node) {
+    var state = node._wrapperState;
+
+    if (!state || !state.controlled || node.type !== 'number') {
+      return;
+    }
+
+    {
+      // If controlled, assign the value attribute to the current value on blur
+      setDefaultValue(node, 'number', node.value);
+    }
+  }
+  /**
+   * This plugin creates an `onChange` event that normalizes change events
+   * across form elements. This event fires at a time when it's possible to
+   * change the element's value without seeing a flicker.
+   *
+   * Supported elements are:
+   * - input (see `isTextInputElement`)
+   * - textarea
+   * - select
+   */
+
+
+  function extractEvents$1(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags, targetContainer) {
+    var targetNode = targetInst ? getNodeFromInstance(targetInst) : window;
+    var getTargetInstFunc, handleEventFunc;
+
+    if (shouldUseChangeEvent(targetNode)) {
+      getTargetInstFunc = getTargetInstForChangeEvent;
+    } else if (isTextInputElement(targetNode)) {
+      if (isInputEventSupported) {
+        getTargetInstFunc = getTargetInstForInputOrChangeEvent;
+      } else {
+        getTargetInstFunc = getTargetInstForInputEventPolyfill;
+        handleEventFunc = handleEventsForInputEventPolyfill;
+      }
+    } else if (shouldUseClickEvent(targetNode)) {
+      getTargetInstFunc = getTargetInstForClickEvent;
+    }
+
+    if (getTargetInstFunc) {
+      var inst = getTargetInstFunc(domEventName, targetInst);
+
+      if (inst) {
+        createAndAccumulateChangeEvent(dispatchQueue, inst, nativeEvent, nativeEventTarget);
+        return;
+      }
+    }
+
+    if (handleEventFunc) {
+      handleEventFunc(domEventName, targetNode, targetInst);
+    } // When blurring, set the value attribute for number inputs
+
+
+    if (domEventName === 'focusout') {
+      handleControlledInputBlur(targetNode);
+    }
+  }
+
+  function registerEvents$2() {
+    registerDirectEvent('onMouseEnter', ['mouseout', 'mouseover']);
+    registerDirectEvent('onMouseLeave', ['mouseout', 'mouseover']);
+    registerDirectEvent('onPointerEnter', ['pointerout', 'pointerover']);
+    registerDirectEvent('onPointerLeave', ['pointerout', 'pointerover']);
+  }
+  /**
+   * For almost every interaction we care about, there will be both a top-level
+   * `mouseover` and `mouseout` event that occurs. Only use `mouseout` so that
+   * we do not extract duplicate events. However, moving the mouse into the
+   * browser from outside will not fire a `mouseout` event. In this case, we use
+   * the `mouseover` top-level event.
+   */
+
+
+  function extractEvents$2(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags, targetContainer) {
+    var isOverEvent = domEventName === 'mouseover' || domEventName === 'pointerover';
+    var isOutEvent = domEventName === 'mouseout' || domEventName === 'pointerout';
+
+    if (isOverEvent && (eventSystemFlags & IS_REPLAYED) === 0) {
+      // If this is an over event with a target, we might have already dispatched
+      // the event in the out event of the other target. If this is replayed,
+      // then it's because we couldn't dispatch against this target previously
+      // so we have to do it now instead.
+      var related = nativeEvent.relatedTarget || nativeEvent.fromElement;
+
+      if (related) {
+        // If the related node is managed by React, we can assume that we have
+        // already dispatched the corresponding events during its mouseout.
+        if (getClosestInstanceFromNode(related) || isContainerMarkedAsRoot(related)) {
+          return;
+        }
+      }
+    }
+
+    if (!isOutEvent && !isOverEvent) {
+      // Must not be a mouse or pointer in or out - ignoring.
+      return;
+    }
+
+    var win; // TODO: why is this nullable in the types but we read from it?
+
+    if (nativeEventTarget.window === nativeEventTarget) {
+      // `nativeEventTarget` is probably a window object.
+      win = nativeEventTarget;
+    } else {
+      // TODO: Figure out why `ownerDocument` is sometimes undefined in IE8.
+      var doc = nativeEventTarget.ownerDocument;
+
+      if (doc) {
+        win = doc.defaultView || doc.parentWindow;
+      } else {
+        win = window;
+      }
+    }
+
+    var from;
+    var to;
+
+    if (isOutEvent) {
+      var _related = nativeEvent.relatedTarget || nativeEvent.toElement;
+
+      from = targetInst;
+      to = _related ? getClosestInstanceFromNode(_related) : null;
+
+      if (to !== null) {
+        var nearestMounted = getNearestMountedFiber(to);
+
+        if (to !== nearestMounted || to.tag !== HostComponent && to.tag !== HostText) {
+          to = null;
+        }
+      }
+    } else {
+      // Moving to a node from outside the window.
+      from = null;
+      to = targetInst;
+    }
+
+    if (from === to) {
+      // Nothing pertains to our managed components.
+      return;
+    }
+
+    var SyntheticEventCtor = SyntheticMouseEvent;
+    var leaveEventType = 'onMouseLeave';
+    var enterEventType = 'onMouseEnter';
+    var eventTypePrefix = 'mouse';
+
+    if (domEventName === 'pointerout' || domEventName === 'pointerover') {
+      SyntheticEventCtor = SyntheticPointerEvent;
+      leaveEventType = 'onPointerLeave';
+      enterEventType = 'onPointerEnter';
+      eventTypePrefix = 'pointer';
+    }
+
+    var fromNode = from == null ? win : getNodeFromInstance(from);
+    var toNode = to == null ? win : getNodeFromInstance(to);
+    var leave = new SyntheticEventCtor(leaveEventType, eventTypePrefix + 'leave', from, nativeEvent, nativeEventTarget);
+    leave.target = fromNode;
+    leave.relatedTarget = toNode;
+    var enter = null; // We should only process this nativeEvent if we are processing
+    // the first ancestor. Next time, we will ignore the event.
+
+    var nativeTargetInst = getClosestInstanceFromNode(nativeEventTarget);
+
+    if (nativeTargetInst === targetInst) {
+      var enterEvent = new SyntheticEventCtor(enterEventType, eventTypePrefix + 'enter', to, nativeEvent, nativeEventTarget);
+      enterEvent.target = toNode;
+      enterEvent.relatedTarget = fromNode;
+      enter = enterEvent;
+    }
+
+    accumulateEnterLeaveTwoPhaseListeners(dispatchQueue, leave, enter, from, to);
+  }
+
+  /**
+   * inlined Object.is polyfill to avoid requiring consumers ship their own
+   * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
+   */
+  function is(x, y) {
+    return x === y && (x !== 0 || 1 / x === 1 / y) || x !== x && y !== y // eslint-disable-line no-self-compare
+    ;
+  }
+
+  var objectIs = typeof Object.is === 'function' ? Object.is : is;
+
+  var hasOwnProperty$2 = Object.prototype.hasOwnProperty;
+  /**
+   * Performs equality by iterating through keys on an object and returning false
+   * when any key has values which are not strictly equal between the arguments.
+   * Returns true when the values of all keys are strictly equal.
+   */
+
+  function shallowEqual(objA, objB) {
+    if (objectIs(objA, objB)) {
+      return true;
+    }
+
+    if (typeof objA !== 'object' || objA === null || typeof objB !== 'object' || objB === null) {
+      return false;
+    }
+
+    var keysA = Object.keys(objA);
+    var keysB = Object.keys(objB);
+
+    if (keysA.length !== keysB.length) {
+      return false;
+    } // Test for A's keys different from B.
+
+
+    for (var i = 0; i < keysA.length; i++) {
+      if (!hasOwnProperty$2.call(objB, keysA[i]) || !objectIs(objA[keysA[i]], objB[keysA[i]])) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  /**
+   * Given any node return the first leaf node without children.
+   *
+   * @param {DOMElement|DOMTextNode} node
+   * @return {DOMElement|DOMTextNode}
+   */
+
+  function getLeafNode(node) {
+    while (node && node.firstChild) {
+      node = node.firstChild;
+    }
+
+    return node;
+  }
+  /**
+   * Get the next sibling within a container. This will walk up the
+   * DOM if a node's siblings have been exhausted.
+   *
+   * @param {DOMElement|DOMTextNode} node
+   * @return {?DOMElement|DOMTextNode}
+   */
+
+
+  function getSiblingNode(node) {
+    while (node) {
+      if (node.nextSibling) {
+        return node.nextSibling;
+      }
+
+      node = node.parentNode;
+    }
+  }
+  /**
+   * Get object describing the nodes which contain characters at offset.
+   *
+   * @param {DOMElement|DOMTextNode} root
+   * @param {number} offset
+   * @return {?object}
+   */
+
+
+  function getNodeForCharacterOffset(root, offset) {
+    var node = getLeafNode(root);
+    var nodeStart = 0;
+    var nodeEnd = 0;
+
+    while (node) {
+      if (node.nodeType === TEXT_NODE) {
+        nodeEnd = nodeStart + node.textContent.length;
+
+        if (nodeStart <= offset && nodeEnd >= offset) {
+          return {
+            node: node,
+            offset: offset - nodeStart
+          };
+        }
+
+        nodeStart = nodeEnd;
+      }
+
+      node = getLeafNode(getSiblingNode(node));
+    }
+  }
+
+  /**
+   * @param {DOMElement} outerNode
+   * @return {?object}
+   */
+
+  function getOffsets(outerNode) {
+    var ownerDocument = outerNode.ownerDocument;
+    var win = ownerDocument && ownerDocument.defaultView || window;
+    var selection = win.getSelection && win.getSelection();
+
+    if (!selection || selection.rangeCount === 0) {
+      return null;
+    }
+
+    var anchorNode = selection.anchorNode,
+        anchorOffset = selection.anchorOffset,
+        focusNode = selection.focusNode,
+        focusOffset = selection.focusOffset; // In Firefox, anchorNode and focusNode can be "anonymous divs", e.g. the
+    // up/down buttons on an <input type="number">. Anonymous divs do not seem to
+    // expose properties, triggering a "Permission denied error" if any of its
+    // properties are accessed. The only seemingly possible way to avoid erroring
+    // is to access a property that typically works for non-anonymous divs and
+    // catch any error that may otherwise arise. See
+    // https://bugzilla.mozilla.org/show_bug.cgi?id=208427
+
+    try {
+      /* eslint-disable no-unused-expressions */
+      anchorNode.nodeType;
+      focusNode.nodeType;
+      /* eslint-enable no-unused-expressions */
+    } catch (e) {
+      return null;
+    }
+
+    return getModernOffsetsFromPoints(outerNode, anchorNode, anchorOffset, focusNode, focusOffset);
+  }
+  /**
+   * Returns {start, end} where `start` is the character/codepoint index of
+   * (anchorNode, anchorOffset) within the textContent of `outerNode`, and
+   * `end` is the index of (focusNode, focusOffset).
+   *
+   * Returns null if you pass in garbage input but we should probably just crash.
+   *
+   * Exported only for testing.
+   */
+
+  function getModernOffsetsFromPoints(outerNode, anchorNode, anchorOffset, focusNode, focusOffset) {
+    var length = 0;
+    var start = -1;
+    var end = -1;
+    var indexWithinAnchor = 0;
+    var indexWithinFocus = 0;
+    var node = outerNode;
+    var parentNode = null;
+
+    outer: while (true) {
+      var next = null;
+
+      while (true) {
+        if (node === anchorNode && (anchorOffset === 0 || node.nodeType === TEXT_NODE)) {
+          start = length + anchorOffset;
+        }
+
+        if (node === focusNode && (focusOffset === 0 || node.nodeType === TEXT_NODE)) {
+          end = length + focusOffset;
+        }
+
+        if (node.nodeType === TEXT_NODE) {
+          length += node.nodeValue.length;
+        }
+
+        if ((next = node.firstChild) === null) {
+          break;
+        } // Moving from `node` to its first child `next`.
+
+
+        parentNode = node;
+        node = next;
+      }
+
+      while (true) {
+        if (node === outerNode) {
+          // If `outerNode` has children, this is always the second time visiting
+          // it. If it has no children, this is still the first loop, and the only
+          // valid selection is anchorNode and focusNode both equal to this node
+          // and both offsets 0, in which case we will have handled above.
+          break outer;
+        }
+
+        if (parentNode === anchorNode && ++indexWithinAnchor === anchorOffset) {
+          start = length;
+        }
+
+        if (parentNode === focusNode && ++indexWithinFocus === focusOffset) {
+          end = length;
+        }
+
+        if ((next = node.nextSibling) !== null) {
+          break;
+        }
+
+        node = parentNode;
+        parentNode = node.parentNode;
+      } // Moving from `node` to its next sibling `next`.
+
+
+      node = next;
+    }
+
+    if (start === -1 || end === -1) {
+      // This should never happen. (Would happen if the anchor/focus nodes aren't
+      // actually inside the passed-in node.)
+      return null;
+    }
+
+    return {
+      start: start,
+      end: end
+    };
+  }
+  /**
+   * In modern non-IE browsers, we can support both forward and backward
+   * selections.
+   *
+   * Note: IE10+ supports the Selection object, but it does not support
+   * the `extend` method, which means that even in modern IE, it's not possible
+   * to programmatically create a backward selection. Thus, for all IE
+   * versions, we use the old IE API to create our selections.
+   *
+   * @param {DOMElement|DOMTextNode} node
+   * @param {object} offsets
+   */
+
+  function setOffsets(node, offsets) {
+    var doc = node.ownerDocument || document;
+    var win = doc && doc.defaultView || window; // Edge fails with "Object expected" in some scenarios.
+    // (For instance: TinyMCE editor used in a list component that supports pasting to add more,
+    // fails when pasting 100+ items)
+
+    if (!win.getSelection) {
+      return;
+    }
+
+    var selection = win.getSelection();
+    var length = node.textContent.length;
+    var start = Math.min(offsets.start, length);
+    var end = offsets.end === undefined ? start : Math.min(offsets.end, length); // IE 11 uses modern selection, but doesn't support the extend method.
+    // Flip backward selections, so we can set with a single range.
+
+    if (!selection.extend && start > end) {
+      var temp = end;
+      end = start;
+      start = temp;
+    }
+
+    var startMarker = getNodeForCharacterOffset(node, start);
+    var endMarker = getNodeForCharacterOffset(node, end);
+
+    if (startMarker && endMarker) {
+      if (selection.rangeCount === 1 && selection.anchorNode === startMarker.node && selection.anchorOffset === startMarker.offset && selection.focusNode === endMarker.node && selection.focusOffset === endMarker.offset) {
+        return;
+      }
+
+      var range = doc.createRange();
+      range.setStart(startMarker.node, startMarker.offset);
+      selection.removeAllRanges();
+
+      if (start > end) {
+        selection.addRange(range);
+        selection.extend(endMarker.node, endMarker.offset);
+      } else {
+        range.setEnd(endMarker.node, endMarker.offset);
+        selection.addRange(range);
+      }
+    }
+  }
+
+  function isTextNode(node) {
+    return node && node.nodeType === TEXT_NODE;
+  }
+
+  function containsNode(outerNode, innerNode) {
+    if (!outerNode || !innerNode) {
+      return false;
+    } else if (outerNode === innerNode) {
+      return true;
+    } else if (isTextNode(outerNode)) {
+      return false;
+    } else if (isTextNode(innerNode)) {
+      return containsNode(outerNode, innerNode.parentNode);
+    } else if ('contains' in outerNode) {
+      return outerNode.contains(innerNode);
+    } else if (outerNode.compareDocumentPosition) {
+      return !!(outerNode.compareDocumentPosition(innerNode) & 16);
+    } else {
+      return false;
+    }
+  }
+
+  function isInDocument(node) {
+    return node && node.ownerDocument && containsNode(node.ownerDocument.documentElement, node);
+  }
+
+  function isSameOriginFrame(iframe) {
+    try {
+      // Accessing the contentDocument of a HTMLIframeElement can cause the browser
+      // to throw, e.g. if it has a cross-origin src attribute.
+      // Safari will show an error in the console when the access results in "Blocked a frame with origin". e.g:
+      // iframe.contentDocument.defaultView;
+      // A safety way is to access one of the cross origin properties: Window or Location
+      // Which might result in "SecurityError" DOM Exception and it is compatible to Safari.
+      // https://html.spec.whatwg.org/multipage/browsers.html#integration-with-idl
+      return typeof iframe.contentWindow.location.href === 'string';
+    } catch (err) {
+      return false;
+    }
+  }
+
+  function getActiveElementDeep() {
+    var win = window;
+    var element = getActiveElement();
+
+    while (element instanceof win.HTMLIFrameElement) {
+      if (isSameOriginFrame(element)) {
+        win = element.contentWindow;
+      } else {
+        return element;
+      }
+
+      element = getActiveElement(win.document);
+    }
+
+    return element;
+  }
+  /**
+   * @ReactInputSelection: React input selection module. Based on Selection.js,
+   * but modified to be suitable for react and has a couple of bug fixes (doesn't
+   * assume buttons have range selections allowed).
+   * Input selection module for React.
+   */
+
+  /**
+   * @hasSelectionCapabilities: we get the element types that support selection
+   * from https://html.spec.whatwg.org/#do-not-apply, looking at `selectionStart`
+   * and `selectionEnd` rows.
+   */
+
+
+  function hasSelectionCapabilities(elem) {
+    var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();
+    return nodeName && (nodeName === 'input' && (elem.type === 'text' || elem.type === 'search' || elem.type === 'tel' || elem.type === 'url' || elem.type === 'password') || nodeName === 'textarea' || elem.contentEditable === 'true');
+  }
+  function getSelectionInformation() {
+    var focusedElem = getActiveElementDeep();
+    return {
+      focusedElem: focusedElem,
+      selectionRange: hasSelectionCapabilities(focusedElem) ? getSelection(focusedElem) : null
+    };
+  }
+  /**
+   * @restoreSelection: If any selection information was potentially lost,
+   * restore it. This is useful when performing operations that could remove dom
+   * nodes and place them back in, resulting in focus being lost.
+   */
+
+  function restoreSelection(priorSelectionInformation) {
+    var curFocusedElem = getActiveElementDeep();
+    var priorFocusedElem = priorSelectionInformation.focusedElem;
+    var priorSelectionRange = priorSelectionInformation.selectionRange;
+
+    if (curFocusedElem !== priorFocusedElem && isInDocument(priorFocusedElem)) {
+      if (priorSelectionRange !== null && hasSelectionCapabilities(priorFocusedElem)) {
+        setSelection(priorFocusedElem, priorSelectionRange);
+      } // Focusing a node can change the scroll position, which is undesirable
+
+
+      var ancestors = [];
+      var ancestor = priorFocusedElem;
+
+      while (ancestor = ancestor.parentNode) {
+        if (ancestor.nodeType === ELEMENT_NODE) {
+          ancestors.push({
+            element: ancestor,
+            left: ancestor.scrollLeft,
+            top: ancestor.scrollTop
+          });
+        }
+      }
+
+      if (typeof priorFocusedElem.focus === 'function') {
+        priorFocusedElem.focus();
+      }
+
+      for (var i = 0; i < ancestors.length; i++) {
+        var info = ancestors[i];
+        info.element.scrollLeft = info.left;
+        info.element.scrollTop = info.top;
+      }
+    }
+  }
+  /**
+   * @getSelection: Gets the selection bounds of a focused textarea, input or
+   * contentEditable node.
+   * -@input: Look up selection bounds of this input
+   * -@return {start: selectionStart, end: selectionEnd}
+   */
+
+  function getSelection(input) {
+    var selection;
+
+    if ('selectionStart' in input) {
+      // Modern browser with input or textarea.
+      selection = {
+        start: input.selectionStart,
+        end: input.selectionEnd
+      };
+    } else {
+      // Content editable or old IE textarea.
+      selection = getOffsets(input);
+    }
+
+    return selection || {
+      start: 0,
+      end: 0
+    };
+  }
+  /**
+   * @setSelection: Sets the selection bounds of a textarea or input and focuses
+   * the input.
+   * -@input     Set selection bounds of this input or textarea
+   * -@offsets   Object of same form that is returned from get*
+   */
+
+  function setSelection(input, offsets) {
+    var start = offsets.start;
+    var end = offsets.end;
+
+    if (end === undefined) {
+      end = start;
+    }
+
+    if ('selectionStart' in input) {
+      input.selectionStart = start;
+      input.selectionEnd = Math.min(end, input.value.length);
+    } else {
+      setOffsets(input, offsets);
+    }
+  }
+
+  var skipSelectionChangeEvent = canUseDOM && 'documentMode' in document && document.documentMode <= 11;
+
+  function registerEvents$3() {
+    registerTwoPhaseEvent('onSelect', ['focusout', 'contextmenu', 'dragend', 'focusin', 'keydown', 'keyup', 'mousedown', 'mouseup', 'selectionchange']);
+  }
+
+  var activeElement$1 = null;
+  var activeElementInst$1 = null;
+  var lastSelection = null;
+  var mouseDown = false;
+  /**
+   * Get an object which is a unique representation of the current selection.
+   *
+   * The return value will not be consistent across nodes or browsers, but
+   * two identical selections on the same node will return identical objects.
+   */
+
+  function getSelection$1(node) {
+    if ('selectionStart' in node && hasSelectionCapabilities(node)) {
+      return {
+        start: node.selectionStart,
+        end: node.selectionEnd
+      };
+    } else {
+      var win = node.ownerDocument && node.ownerDocument.defaultView || window;
+      var selection = win.getSelection();
+      return {
+        anchorNode: selection.anchorNode,
+        anchorOffset: selection.anchorOffset,
+        focusNode: selection.focusNode,
+        focusOffset: selection.focusOffset
+      };
+    }
+  }
+  /**
+   * Get document associated with the event target.
+   */
+
+
+  function getEventTargetDocument(eventTarget) {
+    return eventTarget.window === eventTarget ? eventTarget.document : eventTarget.nodeType === DOCUMENT_NODE ? eventTarget : eventTarget.ownerDocument;
+  }
+  /**
+   * Poll selection to see whether it's changed.
+   *
+   * @param {object} nativeEvent
+   * @param {object} nativeEventTarget
+   * @return {?SyntheticEvent}
+   */
+
+
+  function constructSelectEvent(dispatchQueue, nativeEvent, nativeEventTarget) {
+    // Ensure we have the right element, and that the user is not dragging a
+    // selection (this matches native `select` event behavior). In HTML5, select
+    // fires only on input and textarea thus if there's no focused element we
+    // won't dispatch.
+    var doc = getEventTargetDocument(nativeEventTarget);
+
+    if (mouseDown || activeElement$1 == null || activeElement$1 !== getActiveElement(doc)) {
+      return;
+    } // Only fire when selection has actually changed.
+
+
+    var currentSelection = getSelection$1(activeElement$1);
+
+    if (!lastSelection || !shallowEqual(lastSelection, currentSelection)) {
+      lastSelection = currentSelection;
+      var listeners = accumulateTwoPhaseListeners(activeElementInst$1, 'onSelect');
+
+      if (listeners.length > 0) {
+        var event = new SyntheticEvent('onSelect', 'select', null, nativeEvent, nativeEventTarget);
+        dispatchQueue.push({
+          event: event,
+          listeners: listeners
+        });
+        event.target = activeElement$1;
+      }
+    }
+  }
+  /**
+   * This plugin creates an `onSelect` event that normalizes select events
+   * across form elements.
+   *
+   * Supported elements are:
+   * - input (see `isTextInputElement`)
+   * - textarea
+   * - contentEditable
+   *
+   * This differs from native browser implementations in the following ways:
+   * - Fires on contentEditable fields as well as inputs.
+   * - Fires for collapsed selection.
+   * - Fires after user input.
+   */
+
+
+  function extractEvents$3(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags, targetContainer) {
+
+    var targetNode = targetInst ? getNodeFromInstance(targetInst) : window;
+
+    switch (domEventName) {
+      // Track the input node that has focus.
+      case 'focusin':
+        if (isTextInputElement(targetNode) || targetNode.contentEditable === 'true') {
+          activeElement$1 = targetNode;
+          activeElementInst$1 = targetInst;
+          lastSelection = null;
+        }
+
+        break;
+
+      case 'focusout':
+        activeElement$1 = null;
+        activeElementInst$1 = null;
+        lastSelection = null;
+        break;
+      // Don't fire the event while the user is dragging. This matches the
+      // semantics of the native select event.
+
+      case 'mousedown':
+        mouseDown = true;
+        break;
+
+      case 'contextmenu':
+      case 'mouseup':
+      case 'dragend':
+        mouseDown = false;
+        constructSelectEvent(dispatchQueue, nativeEvent, nativeEventTarget);
+        break;
+      // Chrome and IE fire non-standard event when selection is changed (and
+      // sometimes when it hasn't). IE's event fires out of order with respect
+      // to key and input events on deletion, so we discard it.
+      //
+      // Firefox doesn't support selectionchange, so check selection status
+      // after each key entry. The selection changes after keydown and before
+      // keyup, but we check on keydown as well in the case of holding down a
+      // key, when multiple keydown events are fired but only one keyup is.
+      // This is also our approach for IE handling, for the reason above.
+
+      case 'selectionchange':
+        if (skipSelectionChangeEvent) {
+          break;
+        }
+
+      // falls through
+
+      case 'keydown':
+      case 'keyup':
+        constructSelectEvent(dispatchQueue, nativeEvent, nativeEventTarget);
+    }
+  }
+
+  function extractEvents$4(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags, targetContainer) {
+    var reactName = topLevelEventsToReactNames.get(domEventName);
+
+    if (reactName === undefined) {
+      return;
+    }
+
+    var SyntheticEventCtor = SyntheticEvent;
+    var reactEventType = domEventName;
+
+    switch (domEventName) {
+      case 'keypress':
+        // Firefox creates a keypress event for function keys too. This removes
+        // the unwanted keypress events. Enter is however both printable and
+        // non-printable. One would expect Tab to be as well (but it isn't).
+        if (getEventCharCode(nativeEvent) === 0) {
+          return;
+        }
+
+      /* falls through */
+
+      case 'keydown':
+      case 'keyup':
+        SyntheticEventCtor = SyntheticKeyboardEvent;
+        break;
+
+      case 'focusin':
+        reactEventType = 'focus';
+        SyntheticEventCtor = SyntheticFocusEvent;
+        break;
+
+      case 'focusout':
+        reactEventType = 'blur';
+        SyntheticEventCtor = SyntheticFocusEvent;
+        break;
+
+      case 'beforeblur':
+      case 'afterblur':
+        SyntheticEventCtor = SyntheticFocusEvent;
+        break;
+
+      case 'click':
+        // Firefox creates a click event on right mouse clicks. This removes the
+        // unwanted click events.
+        if (nativeEvent.button === 2) {
+          return;
+        }
+
+      /* falls through */
+
+      case 'auxclick':
+      case 'dblclick':
+      case 'mousedown':
+      case 'mousemove':
+      case 'mouseup': // TODO: Disabled elements should not respond to mouse events
+
+      /* falls through */
+
+      case 'mouseout':
+      case 'mouseover':
+      case 'contextmenu':
+        SyntheticEventCtor = SyntheticMouseEvent;
+        break;
+
+      case 'drag':
+      case 'dragend':
+      case 'dragenter':
+      case 'dragexit':
+      case 'dragleave':
+      case 'dragover':
+      case 'dragstart':
+      case 'drop':
+        SyntheticEventCtor = SyntheticDragEvent;
+        break;
+
+      case 'touchcancel':
+      case 'touchend':
+      case 'touchmove':
+      case 'touchstart':
+        SyntheticEventCtor = SyntheticTouchEvent;
+        break;
+
+      case ANIMATION_END:
+      case ANIMATION_ITERATION:
+      case ANIMATION_START:
+        SyntheticEventCtor = SyntheticAnimationEvent;
+        break;
+
+      case TRANSITION_END:
+        SyntheticEventCtor = SyntheticTransitionEvent;
+        break;
+
+      case 'scroll':
+        SyntheticEventCtor = SyntheticUIEvent;
+        break;
+
+      case 'wheel':
+        SyntheticEventCtor = SyntheticWheelEvent;
+        break;
+
+      case 'copy':
+      case 'cut':
+      case 'paste':
+        SyntheticEventCtor = SyntheticClipboardEvent;
+        break;
+
+      case 'gotpointercapture':
+      case 'lostpointercapture':
+      case 'pointercancel':
+      case 'pointerdown':
+      case 'pointermove':
+      case 'pointerout':
+      case 'pointerover':
+      case 'pointerup':
+        SyntheticEventCtor = SyntheticPointerEvent;
+        break;
+    }
+
+    var inCapturePhase = (eventSystemFlags & IS_CAPTURE_PHASE) !== 0;
+
+    {
+      // Some events don't bubble in the browser.
+      // In the past, React has always bubbled them, but this can be surprising.
+      // We're going to try aligning closer to the browser behavior by not bubbling
+      // them in React either. We'll start by not bubbling onScroll, and then expand.
+      var accumulateTargetOnly = !inCapturePhase && // TODO: ideally, we'd eventually add all events from
+      // nonDelegatedEvents list in DOMPluginEventSystem.
+      // Then we can remove this special list.
+      // This is a breaking change that can wait until React 18.
+      domEventName === 'scroll';
+
+      var _listeners = accumulateSinglePhaseListeners(targetInst, reactName, nativeEvent.type, inCapturePhase, accumulateTargetOnly);
+
+      if (_listeners.length > 0) {
+        // Intentionally create event lazily.
+        var _event = new SyntheticEventCtor(reactName, reactEventType, null, nativeEvent, nativeEventTarget);
+
+        dispatchQueue.push({
+          event: _event,
+          listeners: _listeners
+        });
+      }
+    }
+  }
+
+  // TODO: remove top-level side effect.
+  registerSimpleEvents();
+  registerEvents$2();
+  registerEvents$1();
+  registerEvents$3();
+  registerEvents();
+
+  function extractEvents$5(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags, targetContainer) {
+    // TODO: we should remove the concept of a "SimpleEventPlugin".
+    // This is the basic functionality of the event system. All
+    // the other plugins are essentially polyfills. So the plugin
+    // should probably be inlined somewhere and have its logic
+    // be core the to event system. This would potentially allow
+    // us to ship builds of React without the polyfilled plugins below.
+    extractEvents$4(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags);
+    var shouldProcessPolyfillPlugins = (eventSystemFlags & SHOULD_NOT_PROCESS_POLYFILL_EVENT_PLUGINS) === 0; // We don't process these events unless we are in the
+    // event's native "bubble" phase, which means that we're
+    // not in the capture phase. That's because we emulate
+    // the capture phase here still. This is a trade-off,
+    // because in an ideal world we would not emulate and use
+    // the phases properly, like we do with the SimpleEvent
+    // plugin. However, the plugins below either expect
+    // emulation (EnterLeave) or use state localized to that
+    // plugin (BeforeInput, Change, Select). The state in
+    // these modules complicates things, as you'll essentially
+    // get the case where the capture phase event might change
+    // state, only for the following bubble event to come in
+    // later and not trigger anything as the state now
+    // invalidates the heuristics of the event plugin. We
+    // could alter all these plugins to work in such ways, but
+    // that might cause other unknown side-effects that we
+    // can't forsee right now.
+
+    if (shouldProcessPolyfillPlugins) {
+      extractEvents$2(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags);
+      extractEvents$1(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget);
+      extractEvents$3(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget);
+      extractEvents(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget);
+    }
+  } // List of events that need to be individually attached to media elements.
+
+
+  var mediaEventTypes = ['abort', 'canplay', 'canplaythrough', 'durationchange', 'emptied', 'encrypted', 'ended', 'error', 'loadeddata', 'loadedmetadata', 'loadstart', 'pause', 'play', 'playing', 'progress', 'ratechange', 'seeked', 'seeking', 'stalled', 'suspend', 'timeupdate', 'volumechange', 'waiting']; // We should not delegate these events to the container, but rather
+  // set them on the actual target element itself. This is primarily
+  // because these events do not consistently bubble in the DOM.
+
+  var nonDelegatedEvents = new Set(['cancel', 'close', 'invalid', 'load', 'scroll', 'toggle'].concat(mediaEventTypes));
+
+  function executeDispatch(event, listener, currentTarget) {
+    var type = event.type || 'unknown-event';
+    event.currentTarget = currentTarget;
+    invokeGuardedCallbackAndCatchFirstError(type, listener, undefined, event);
+    event.currentTarget = null;
+  }
+
+  function processDispatchQueueItemsInOrder(event, dispatchListeners, inCapturePhase) {
+    var previousInstance;
+
+    if (inCapturePhase) {
+      for (var i = dispatchListeners.length - 1; i >= 0; i--) {
+        var _dispatchListeners$i = dispatchListeners[i],
+            instance = _dispatchListeners$i.instance,
+            currentTarget = _dispatchListeners$i.currentTarget,
+            listener = _dispatchListeners$i.listener;
+
+        if (instance !== previousInstance && event.isPropagationStopped()) {
+          return;
+        }
+
+        executeDispatch(event, listener, currentTarget);
+        previousInstance = instance;
+      }
+    } else {
+      for (var _i = 0; _i < dispatchListeners.length; _i++) {
+        var _dispatchListeners$_i = dispatchListeners[_i],
+            _instance = _dispatchListeners$_i.instance,
+            _currentTarget = _dispatchListeners$_i.currentTarget,
+            _listener = _dispatchListeners$_i.listener;
+
+        if (_instance !== previousInstance && event.isPropagationStopped()) {
+          return;
+        }
+
+        executeDispatch(event, _listener, _currentTarget);
+        previousInstance = _instance;
+      }
+    }
+  }
+
+  function processDispatchQueue(dispatchQueue, eventSystemFlags) {
+    var inCapturePhase = (eventSystemFlags & IS_CAPTURE_PHASE) !== 0;
+
+    for (var i = 0; i < dispatchQueue.length; i++) {
+      var _dispatchQueue$i = dispatchQueue[i],
+          event = _dispatchQueue$i.event,
+          listeners = _dispatchQueue$i.listeners;
+      processDispatchQueueItemsInOrder(event, listeners, inCapturePhase); //  event system doesn't use pooling.
+    } // This would be a good time to rethrow if any of the event handlers threw.
+
+
+    rethrowCaughtError();
+  }
+
+  function dispatchEventsForPlugins(domEventName, eventSystemFlags, nativeEvent, targetInst, targetContainer) {
+    var nativeEventTarget = getEventTarget(nativeEvent);
+    var dispatchQueue = [];
+    extractEvents$5(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags);
+    processDispatchQueue(dispatchQueue, eventSystemFlags);
+  }
+
+  function listenToNonDelegatedEvent(domEventName, targetElement) {
+    var isCapturePhaseListener = false;
+    var listenerSet = getEventListenerSet(targetElement);
+    var listenerSetKey = getListenerSetKey(domEventName, isCapturePhaseListener);
+
+    if (!listenerSet.has(listenerSetKey)) {
+      addTrappedEventListener(targetElement, domEventName, IS_NON_DELEGATED, isCapturePhaseListener);
+      listenerSet.add(listenerSetKey);
+    }
+  }
+  var listeningMarker = '_reactListening' + Math.random().toString(36).slice(2);
+  function listenToAllSupportedEvents(rootContainerElement) {
+    {
+      if (rootContainerElement[listeningMarker]) {
+        // Performance optimization: don't iterate through events
+        // for the same portal container or root node more than once.
+        // TODO: once we remove the flag, we may be able to also
+        // remove some of the bookkeeping maps used for laziness.
+        return;
+      }
+
+      rootContainerElement[listeningMarker] = true;
+      allNativeEvents.forEach(function (domEventName) {
+        if (!nonDelegatedEvents.has(domEventName)) {
+          listenToNativeEvent(domEventName, false, rootContainerElement, null);
+        }
+
+        listenToNativeEvent(domEventName, true, rootContainerElement, null);
+      });
+    }
+  }
+  function listenToNativeEvent(domEventName, isCapturePhaseListener, rootContainerElement, targetElement) {
+    var eventSystemFlags = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;
+    var target = rootContainerElement; // selectionchange needs to be attached to the document
+    // otherwise it won't capture incoming events that are only
+    // triggered on the document directly.
+
+    if (domEventName === 'selectionchange' && rootContainerElement.nodeType !== DOCUMENT_NODE) {
+      target = rootContainerElement.ownerDocument;
+    } // If the event can be delegated (or is capture phase), we can
+    // register it to the root container. Otherwise, we should
+    // register the event to the target element and mark it as
+    // a non-delegated event.
+
+
+    if (targetElement !== null && !isCapturePhaseListener && nonDelegatedEvents.has(domEventName)) {
+      // For all non-delegated events, apart from scroll, we attach
+      // their event listeners to the respective elements that their
+      // events fire on. That means we can skip this step, as event
+      // listener has already been added previously. However, we
+      // special case the scroll event because the reality is that any
+      // element can scroll.
+      // TODO: ideally, we'd eventually apply the same logic to all
+      // events from the nonDelegatedEvents list. Then we can remove
+      // this special case and use the same logic for all events.
+      if (domEventName !== 'scroll') {
+        return;
+      }
+
+      eventSystemFlags |= IS_NON_DELEGATED;
+      target = targetElement;
+    }
+
+    var listenerSet = getEventListenerSet(target);
+    var listenerSetKey = getListenerSetKey(domEventName, isCapturePhaseListener); // If the listener entry is empty or we should upgrade, then
+    // we need to trap an event listener onto the target.
+
+    if (!listenerSet.has(listenerSetKey)) {
+      if (isCapturePhaseListener) {
+        eventSystemFlags |= IS_CAPTURE_PHASE;
+      }
+
+      addTrappedEventListener(target, domEventName, eventSystemFlags, isCapturePhaseListener);
+      listenerSet.add(listenerSetKey);
+    }
+  }
+
+  function addTrappedEventListener(targetContainer, domEventName, eventSystemFlags, isCapturePhaseListener, isDeferredListenerForLegacyFBSupport) {
+    var listener = createEventListenerWrapperWithPriority(targetContainer, domEventName, eventSystemFlags); // If passive option is not supported, then the event will be
+    // active and not passive.
+
+    var isPassiveListener = undefined;
+
+    if (passiveBrowserEventsSupported) {
+      // Browsers introduced an intervention, making these events
+      // passive by default on document. React doesn't bind them
+      // to document anymore, but changing this now would undo
+      // the performance wins from the change. So we emulate
+      // the existing behavior manually on the roots now.
+      // https://github.com/facebook/react/issues/19651
+      if (domEventName === 'touchstart' || domEventName === 'touchmove' || domEventName === 'wheel') {
+        isPassiveListener = true;
+      }
+    }
+
+    targetContainer =  targetContainer;
+    var unsubscribeListener; // When legacyFBSupport is enabled, it's for when we
+
+
+    if (isCapturePhaseListener) {
+      if (isPassiveListener !== undefined) {
+        unsubscribeListener = addEventCaptureListenerWithPassiveFlag(targetContainer, domEventName, listener, isPassiveListener);
+      } else {
+        unsubscribeListener = addEventCaptureListener(targetContainer, domEventName, listener);
+      }
+    } else {
+      if (isPassiveListener !== undefined) {
+        unsubscribeListener = addEventBubbleListenerWithPassiveFlag(targetContainer, domEventName, listener, isPassiveListener);
+      } else {
+        unsubscribeListener = addEventBubbleListener(targetContainer, domEventName, listener);
+      }
+    }
+  }
+
+  function isMatchingRootContainer(grandContainer, targetContainer) {
+    return grandContainer === targetContainer || grandContainer.nodeType === COMMENT_NODE && grandContainer.parentNode === targetContainer;
+  }
+
+  function dispatchEventForPluginEventSystem(domEventName, eventSystemFlags, nativeEvent, targetInst, targetContainer) {
+    var ancestorInst = targetInst;
+
+    if ((eventSystemFlags & IS_EVENT_HANDLE_NON_MANAGED_NODE) === 0 && (eventSystemFlags & IS_NON_DELEGATED) === 0) {
+      var targetContainerNode = targetContainer; // If we are using the legacy FB support flag, we
+
+      if (targetInst !== null) {
+        // The below logic attempts to work out if we need to change
+        // the target fiber to a different ancestor. We had similar logic
+        // in the legacy event system, except the big difference between
+        // systems is that the modern event system now has an event listener
+        // attached to each React Root and React Portal Root. Together,
+        // the DOM nodes representing these roots are the "rootContainer".
+        // To figure out which ancestor instance we should use, we traverse
+        // up the fiber tree from the target instance and attempt to find
+        // root boundaries that match that of our current "rootContainer".
+        // If we find that "rootContainer", we find the parent fiber
+        // sub-tree for that root and make that our ancestor instance.
+        var node = targetInst;
+
+        mainLoop: while (true) {
+          if (node === null) {
+            return;
+          }
+
+          var nodeTag = node.tag;
+
+          if (nodeTag === HostRoot || nodeTag === HostPortal) {
+            var container = node.stateNode.containerInfo;
+
+            if (isMatchingRootContainer(container, targetContainerNode)) {
+              break;
+            }
+
+            if (nodeTag === HostPortal) {
+              // The target is a portal, but it's not the rootContainer we're looking for.
+              // Normally portals handle their own events all the way down to the root.
+              // So we should be able to stop now. However, we don't know if this portal
+              // was part of *our* root.
+              var grandNode = node.return;
+
+              while (grandNode !== null) {
+                var grandTag = grandNode.tag;
+
+                if (grandTag === HostRoot || grandTag === HostPortal) {
+                  var grandContainer = grandNode.stateNode.containerInfo;
+
+                  if (isMatchingRootContainer(grandContainer, targetContainerNode)) {
+                    // This is the rootContainer we're looking for and we found it as
+                    // a parent of the Portal. That means we can ignore it because the
+                    // Portal will bubble through to us.
+                    return;
+                  }
+                }
+
+                grandNode = grandNode.return;
+              }
+            } // Now we need to find it's corresponding host fiber in the other
+            // tree. To do this we can use getClosestInstanceFromNode, but we
+            // need to validate that the fiber is a host instance, otherwise
+            // we need to traverse up through the DOM till we find the correct
+            // node that is from the other tree.
+
+
+            while (container !== null) {
+              var parentNode = getClosestInstanceFromNode(container);
+
+              if (parentNode === null) {
+                return;
+              }
+
+              var parentTag = parentNode.tag;
+
+              if (parentTag === HostComponent || parentTag === HostText) {
+                node = ancestorInst = parentNode;
+                continue mainLoop;
+              }
+
+              container = container.parentNode;
+            }
+          }
+
+          node = node.return;
+        }
+      }
+    }
+
+    batchedEventUpdates(function () {
+      return dispatchEventsForPlugins(domEventName, eventSystemFlags, nativeEvent, ancestorInst);
+    });
+  }
+
+  function createDispatchListener(instance, listener, currentTarget) {
+    return {
+      instance: instance,
+      listener: listener,
+      currentTarget: currentTarget
+    };
+  }
+
+  function accumulateSinglePhaseListeners(targetFiber, reactName, nativeEventType, inCapturePhase, accumulateTargetOnly) {
+    var captureName = reactName !== null ? reactName + 'Capture' : null;
+    var reactEventName = inCapturePhase ? captureName : reactName;
+    var listeners = [];
+    var instance = targetFiber;
+    var lastHostComponent = null; // Accumulate all instances and listeners via the target -> root path.
+
+    while (instance !== null) {
+      var _instance2 = instance,
+          stateNode = _instance2.stateNode,
+          tag = _instance2.tag; // Handle listeners that are on HostComponents (i.e. <div>)
+
+      if (tag === HostComponent && stateNode !== null) {
+        lastHostComponent = stateNode; // createEventHandle listeners
+
+
+        if (reactEventName !== null) {
+          var listener = getListener(instance, reactEventName);
+
+          if (listener != null) {
+            listeners.push(createDispatchListener(instance, listener, lastHostComponent));
+          }
+        }
+      } // If we are only accumulating events for the target, then we don't
+      // continue to propagate through the React fiber tree to find other
+      // listeners.
+
+
+      if (accumulateTargetOnly) {
+        break;
+      }
+
+      instance = instance.return;
+    }
+
+    return listeners;
+  } // We should only use this function for:
+  // - BeforeInputEventPlugin
+  // - ChangeEventPlugin
+  // - SelectEventPlugin
+  // This is because we only process these plugins
+  // in the bubble phase, so we need to accumulate two
+  // phase event listeners (via emulation).
+
+  function accumulateTwoPhaseListeners(targetFiber, reactName) {
+    var captureName = reactName + 'Capture';
+    var listeners = [];
+    var instance = targetFiber; // Accumulate all instances and listeners via the target -> root path.
+
+    while (instance !== null) {
+      var _instance3 = instance,
+          stateNode = _instance3.stateNode,
+          tag = _instance3.tag; // Handle listeners that are on HostComponents (i.e. <div>)
+
+      if (tag === HostComponent && stateNode !== null) {
+        var currentTarget = stateNode;
+        var captureListener = getListener(instance, captureName);
+
+        if (captureListener != null) {
+          listeners.unshift(createDispatchListener(instance, captureListener, currentTarget));
+        }
+
+        var bubbleListener = getListener(instance, reactName);
+
+        if (bubbleListener != null) {
+          listeners.push(createDispatchListener(instance, bubbleListener, currentTarget));
+        }
+      }
+
+      instance = instance.return;
+    }
+
+    return listeners;
+  }
+
+  function getParent(inst) {
+    if (inst === null) {
+      return null;
+    }
+
+    do {
+      inst = inst.return; // TODO: If this is a HostRoot we might want to bail out.
+      // That is depending on if we want nested subtrees (layers) to bubble
+      // events to their parent. We could also go through parentNode on the
+      // host node but that wouldn't work for React Native and doesn't let us
+      // do the portal feature.
+    } while (inst && inst.tag !== HostComponent);
+
+    if (inst) {
+      return inst;
+    }
+
+    return null;
+  }
+  /**
+   * Return the lowest common ancestor of A and B, or null if they are in
+   * different trees.
+   */
+
+
+  function getLowestCommonAncestor(instA, instB) {
+    var nodeA = instA;
+    var nodeB = instB;
+    var depthA = 0;
+
+    for (var tempA = nodeA; tempA; tempA = getParent(tempA)) {
+      depthA++;
+    }
+
+    var depthB = 0;
+
+    for (var tempB = nodeB; tempB; tempB = getParent(tempB)) {
+      depthB++;
+    } // If A is deeper, crawl up.
+
+
+    while (depthA - depthB > 0) {
+      nodeA = getParent(nodeA);
+      depthA--;
+    } // If B is deeper, crawl up.
+
+
+    while (depthB - depthA > 0) {
+      nodeB = getParent(nodeB);
+      depthB--;
+    } // Walk in lockstep until we find a match.
+
+
+    var depth = depthA;
+
+    while (depth--) {
+      if (nodeA === nodeB || nodeB !== null && nodeA === nodeB.alternate) {
+        return nodeA;
+      }
+
+      nodeA = getParent(nodeA);
+      nodeB = getParent(nodeB);
+    }
+
+    return null;
+  }
+
+  function accumulateEnterLeaveListenersForEvent(dispatchQueue, event, target, common, inCapturePhase) {
+    var registrationName = event._reactName;
+    var listeners = [];
+    var instance = target;
+
+    while (instance !== null) {
+      if (instance === common) {
+        break;
+      }
+
+      var _instance4 = instance,
+          alternate = _instance4.alternate,
+          stateNode = _instance4.stateNode,
+          tag = _instance4.tag;
+
+      if (alternate !== null && alternate === common) {
+        break;
+      }
+
+      if (tag === HostComponent && stateNode !== null) {
+        var currentTarget = stateNode;
+
+        if (inCapturePhase) {
+          var captureListener = getListener(instance, registrationName);
+
+          if (captureListener != null) {
+            listeners.unshift(createDispatchListener(instance, captureListener, currentTarget));
+          }
+        } else if (!inCapturePhase) {
+          var bubbleListener = getListener(instance, registrationName);
+
+          if (bubbleListener != null) {
+            listeners.push(createDispatchListener(instance, bubbleListener, currentTarget));
+          }
+        }
+      }
+
+      instance = instance.return;
+    }
+
+    if (listeners.length !== 0) {
+      dispatchQueue.push({
+        event: event,
+        listeners: listeners
+      });
+    }
+  } // We should only use this function for:
+  // - EnterLeaveEventPlugin
+  // This is because we only process this plugin
+  // in the bubble phase, so we need to accumulate two
+  // phase event listeners.
+
+
+  function accumulateEnterLeaveTwoPhaseListeners(dispatchQueue, leaveEvent, enterEvent, from, to) {
+    var common = from && to ? getLowestCommonAncestor(from, to) : null;
+
+    if (from !== null) {
+      accumulateEnterLeaveListenersForEvent(dispatchQueue, leaveEvent, from, common, false);
+    }
+
+    if (to !== null && enterEvent !== null) {
+      accumulateEnterLeaveListenersForEvent(dispatchQueue, enterEvent, to, common, true);
+    }
+  }
+  function getListenerSetKey(domEventName, capture) {
+    return domEventName + "__" + (capture ? 'capture' : 'bubble');
+  }
+
+  var didWarnInvalidHydration = false;
+  var DANGEROUSLY_SET_INNER_HTML = 'dangerouslySetInnerHTML';
+  var SUPPRESS_CONTENT_EDITABLE_WARNING = 'suppressContentEditableWarning';
+  var SUPPRESS_HYDRATION_WARNING = 'suppressHydrationWarning';
+  var AUTOFOCUS = 'autoFocus';
+  var CHILDREN = 'children';
+  var STYLE = 'style';
+  var HTML$1 = '__html';
+  var HTML_NAMESPACE$1 = Namespaces.html;
+  var warnedUnknownTags;
+  var suppressHydrationWarning;
+  var validatePropertiesInDevelopment;
+  var warnForTextDifference;
+  var warnForPropDifference;
+  var warnForExtraAttributes;
+  var warnForInvalidEventListener;
+  var canDiffStyleForHydrationWarning;
+  var normalizeMarkupForTextOrAttribute;
+  var normalizeHTML;
+
+  {
+    warnedUnknownTags = {
+      // There are working polyfills for <dialog>. Let people use it.
+      dialog: true,
+      // Electron ships a custom <webview> tag to display external web content in
+      // an isolated frame and process.
+      // This tag is not present in non Electron environments such as JSDom which
+      // is often used for testing purposes.
+      // @see https://electronjs.org/docs/api/webview-tag
+      webview: true
+    };
+
+    validatePropertiesInDevelopment = function (type, props) {
+      validateProperties(type, props);
+      validateProperties$1(type, props);
+      validateProperties$2(type, props, {
+        registrationNameDependencies: registrationNameDependencies,
+        possibleRegistrationNames: possibleRegistrationNames
+      });
+    }; // IE 11 parses & normalizes the style attribute as opposed to other
+    // browsers. It adds spaces and sorts the properties in some
+    // non-alphabetical order. Handling that would require sorting CSS
+    // properties in the client & server versions or applying
+    // `expectedStyle` to a temporary DOM node to read its `style` attribute
+    // normalized. Since it only affects IE, we're skipping style warnings
+    // in that browser completely in favor of doing all that work.
+    // See https://github.com/facebook/react/issues/11807
+
+
+    canDiffStyleForHydrationWarning = canUseDOM && !document.documentMode; // HTML parsing normalizes CR and CRLF to LF.
+    // It also can turn \u0000 into \uFFFD inside attributes.
+    // https://www.w3.org/TR/html5/single-page.html#preprocessing-the-input-stream
+    // If we have a mismatch, it might be caused by that.
+    // We will still patch up in this case but not fire the warning.
+
+    var NORMALIZE_NEWLINES_REGEX = /\r\n?/g;
+    var NORMALIZE_NULL_AND_REPLACEMENT_REGEX = /\u0000|\uFFFD/g;
+
+    normalizeMarkupForTextOrAttribute = function (markup) {
+      var markupString = typeof markup === 'string' ? markup : '' + markup;
+      return markupString.replace(NORMALIZE_NEWLINES_REGEX, '\n').replace(NORMALIZE_NULL_AND_REPLACEMENT_REGEX, '');
+    };
+
+    warnForTextDifference = function (serverText, clientText) {
+      if (didWarnInvalidHydration) {
+        return;
+      }
+
+      var normalizedClientText = normalizeMarkupForTextOrAttribute(clientText);
+      var normalizedServerText = normalizeMarkupForTextOrAttribute(serverText);
+
+      if (normalizedServerText === normalizedClientText) {
+        return;
+      }
+
+      didWarnInvalidHydration = true;
+
+      error('Text content did not match. Server: "%s" Client: "%s"', normalizedServerText, normalizedClientText);
+    };
+
+    warnForPropDifference = function (propName, serverValue, clientValue) {
+      if (didWarnInvalidHydration) {
+        return;
+      }
+
+      var normalizedClientValue = normalizeMarkupForTextOrAttribute(clientValue);
+      var normalizedServerValue = normalizeMarkupForTextOrAttribute(serverValue);
+
+      if (normalizedServerValue === normalizedClientValue) {
+        return;
+      }
+
+      didWarnInvalidHydration = true;
+
+      error('Prop `%s` did not match. Server: %s Client: %s', propName, JSON.stringify(normalizedServerValue), JSON.stringify(normalizedClientValue));
+    };
+
+    warnForExtraAttributes = function (attributeNames) {
+      if (didWarnInvalidHydration) {
+        return;
+      }
+
+      didWarnInvalidHydration = true;
+      var names = [];
+      attributeNames.forEach(function (name) {
+        names.push(name);
+      });
+
+      error('Extra attributes from the server: %s', names);
+    };
+
+    warnForInvalidEventListener = function (registrationName, listener) {
+      if (listener === false) {
+        error('Expected `%s` listener to be a function, instead got `false`.\n\n' + 'If you used to conditionally omit it with %s={condition && value}, ' + 'pass %s={condition ? value : undefined} instead.', registrationName, registrationName, registrationName);
+      } else {
+        error('Expected `%s` listener to be a function, instead got a value of `%s` type.', registrationName, typeof listener);
+      }
+    }; // Parse the HTML and read it back to normalize the HTML string so that it
+    // can be used for comparison.
+
+
+    normalizeHTML = function (parent, html) {
+      // We could have created a separate document here to avoid
+      // re-initializing custom elements if they exist. But this breaks
+      // how <noscript> is being handled. So we use the same document.
+      // See the discussion in https://github.com/facebook/react/pull/11157.
+      var testElement = parent.namespaceURI === HTML_NAMESPACE$1 ? parent.ownerDocument.createElement(parent.tagName) : parent.ownerDocument.createElementNS(parent.namespaceURI, parent.tagName);
+      testElement.innerHTML = html;
+      return testElement.innerHTML;
+    };
+  }
+
+  function getOwnerDocumentFromRootContainer(rootContainerElement) {
+    return rootContainerElement.nodeType === DOCUMENT_NODE ? rootContainerElement : rootContainerElement.ownerDocument;
+  }
+
+  function noop() {}
+
+  function trapClickOnNonInteractiveElement(node) {
+    // Mobile Safari does not fire properly bubble click events on
+    // non-interactive elements, which means delegated click listeners do not
+    // fire. The workaround for this bug involves attaching an empty click
+    // listener on the target node.
+    // https://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
+    // Just set it using the onclick property so that we don't have to manage any
+    // bookkeeping for it. Not sure if we need to clear it when the listener is
+    // removed.
+    // TODO: Only do this for the relevant Safaris maybe?
+    node.onclick = noop;
+  }
+
+  function setInitialDOMProperties(tag, domElement, rootContainerElement, nextProps, isCustomComponentTag) {
+    for (var propKey in nextProps) {
+      if (!nextProps.hasOwnProperty(propKey)) {
+        continue;
+      }
+
+      var nextProp = nextProps[propKey];
+
+      if (propKey === STYLE) {
+        {
+          if (nextProp) {
+            // Freeze the next style object so that we can assume it won't be
+            // mutated. We have already warned for this in the past.
+            Object.freeze(nextProp);
+          }
+        } // Relies on `updateStylesByID` not mutating `styleUpdates`.
+
+
+        setValueForStyles(domElement, nextProp);
+      } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
+        var nextHtml = nextProp ? nextProp[HTML$1] : undefined;
+
+        if (nextHtml != null) {
+          setInnerHTML(domElement, nextHtml);
+        }
+      } else if (propKey === CHILDREN) {
+        if (typeof nextProp === 'string') {
+          // Avoid setting initial textContent when the text is empty. In IE11 setting
+          // textContent on a <textarea> will cause the placeholder to not
+          // show within the <textarea> until it has been focused and blurred again.
+          // https://github.com/facebook/react/issues/6731#issuecomment-254874553
+          var canSetTextContent = tag !== 'textarea' || nextProp !== '';
+
+          if (canSetTextContent) {
+            setTextContent(domElement, nextProp);
+          }
+        } else if (typeof nextProp === 'number') {
+          setTextContent(domElement, '' + nextProp);
+        }
+      } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING) ; else if (propKey === AUTOFOCUS) ; else if (registrationNameDependencies.hasOwnProperty(propKey)) {
+        if (nextProp != null) {
+          if ( typeof nextProp !== 'function') {
+            warnForInvalidEventListener(propKey, nextProp);
+          }
+
+          if (propKey === 'onScroll') {
+            listenToNonDelegatedEvent('scroll', domElement);
+          }
+        }
+      } else if (nextProp != null) {
+        setValueForProperty(domElement, propKey, nextProp, isCustomComponentTag);
+      }
+    }
+  }
+
+  function updateDOMProperties(domElement, updatePayload, wasCustomComponentTag, isCustomComponentTag) {
+    // TODO: Handle wasCustomComponentTag
+    for (var i = 0; i < updatePayload.length; i += 2) {
+      var propKey = updatePayload[i];
+      var propValue = updatePayload[i + 1];
+
+      if (propKey === STYLE) {
+        setValueForStyles(domElement, propValue);
+      } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
+        setInnerHTML(domElement, propValue);
+      } else if (propKey === CHILDREN) {
+        setTextContent(domElement, propValue);
+      } else {
+        setValueForProperty(domElement, propKey, propValue, isCustomComponentTag);
+      }
+    }
+  }
+
+  function createElement(type, props, rootContainerElement, parentNamespace) {
+    var isCustomComponentTag; // We create tags in the namespace of their parent container, except HTML
+    // tags get no namespace.
+
+    var ownerDocument = getOwnerDocumentFromRootContainer(rootContainerElement);
+    var domElement;
+    var namespaceURI = parentNamespace;
+
+    if (namespaceURI === HTML_NAMESPACE$1) {
+      namespaceURI = getIntrinsicNamespace(type);
+    }
+
+    if (namespaceURI === HTML_NAMESPACE$1) {
+      {
+        isCustomComponentTag = isCustomComponent(type, props); // Should this check be gated by parent namespace? Not sure we want to
+        // allow <SVG> or <mATH>.
+
+        if (!isCustomComponentTag && type !== type.toLowerCase()) {
+          error('<%s /> is using incorrect casing. ' + 'Use PascalCase for React components, ' + 'or lowercase for HTML elements.', type);
+        }
+      }
+
+      if (type === 'script') {
+        // Create the script via .innerHTML so its "parser-inserted" flag is
+        // set to true and it does not execute
+        var div = ownerDocument.createElement('div');
+
+        div.innerHTML = '<script><' + '/script>'; // eslint-disable-line
+        // This is guaranteed to yield a script element.
+
+        var firstChild = div.firstChild;
+        domElement = div.removeChild(firstChild);
+      } else if (typeof props.is === 'string') {
+        // $FlowIssue `createElement` should be updated for Web Components
+        domElement = ownerDocument.createElement(type, {
+          is: props.is
+        });
+      } else {
+        // Separate else branch instead of using `props.is || undefined` above because of a Firefox bug.
+        // See discussion in https://github.com/facebook/react/pull/6896
+        // and discussion in https://bugzilla.mozilla.org/show_bug.cgi?id=1276240
+        domElement = ownerDocument.createElement(type); // Normally attributes are assigned in `setInitialDOMProperties`, however the `multiple` and `size`
+        // attributes on `select`s needs to be added before `option`s are inserted.
+        // This prevents:
+        // - a bug where the `select` does not scroll to the correct option because singular
+        //  `select` elements automatically pick the first item #13222
+        // - a bug where the `select` set the first item as selected despite the `size` attribute #14239
+        // See https://github.com/facebook/react/issues/13222
+        // and https://github.com/facebook/react/issues/14239
+
+        if (type === 'select') {
+          var node = domElement;
+
+          if (props.multiple) {
+            node.multiple = true;
+          } else if (props.size) {
+            // Setting a size greater than 1 causes a select to behave like `multiple=true`, where
+            // it is possible that no option is selected.
+            //
+            // This is only necessary when a select in "single selection mode".
+            node.size = props.size;
+          }
+        }
+      }
+    } else {
+      domElement = ownerDocument.createElementNS(namespaceURI, type);
+    }
+
+    {
+      if (namespaceURI === HTML_NAMESPACE$1) {
+        if (!isCustomComponentTag && Object.prototype.toString.call(domElement) === '[object HTMLUnknownElement]' && !Object.prototype.hasOwnProperty.call(warnedUnknownTags, type)) {
+          warnedUnknownTags[type] = true;
+
+          error('The tag <%s> is unrecognized in this browser. ' + 'If you meant to render a React component, start its name with ' + 'an uppercase letter.', type);
+        }
+      }
+    }
+
+    return domElement;
+  }
+  function createTextNode(text, rootContainerElement) {
+    return getOwnerDocumentFromRootContainer(rootContainerElement).createTextNode(text);
+  }
+  function setInitialProperties(domElement, tag, rawProps, rootContainerElement) {
+    var isCustomComponentTag = isCustomComponent(tag, rawProps);
+
+    {
+      validatePropertiesInDevelopment(tag, rawProps);
+    } // TODO: Make sure that we check isMounted before firing any of these events.
+
+
+    var props;
+
+    switch (tag) {
+      case 'dialog':
+        listenToNonDelegatedEvent('cancel', domElement);
+        listenToNonDelegatedEvent('close', domElement);
+        props = rawProps;
+        break;
+
+      case 'iframe':
+      case 'object':
+      case 'embed':
+        // We listen to this event in case to ensure emulated bubble
+        // listeners still fire for the load event.
+        listenToNonDelegatedEvent('load', domElement);
+        props = rawProps;
+        break;
+
+      case 'video':
+      case 'audio':
+        // We listen to these events in case to ensure emulated bubble
+        // listeners still fire for all the media events.
+        for (var i = 0; i < mediaEventTypes.length; i++) {
+          listenToNonDelegatedEvent(mediaEventTypes[i], domElement);
+        }
+
+        props = rawProps;
+        break;
+
+      case 'source':
+        // We listen to this event in case to ensure emulated bubble
+        // listeners still fire for the error event.
+        listenToNonDelegatedEvent('error', domElement);
+        props = rawProps;
+        break;
+
+      case 'img':
+      case 'image':
+      case 'link':
+        // We listen to these events in case to ensure emulated bubble
+        // listeners still fire for error and load events.
+        listenToNonDelegatedEvent('error', domElement);
+        listenToNonDelegatedEvent('load', domElement);
+        props = rawProps;
+        break;
+
+      case 'details':
+        // We listen to this event in case to ensure emulated bubble
+        // listeners still fire for the toggle event.
+        listenToNonDelegatedEvent('toggle', domElement);
+        props = rawProps;
+        break;
+
+      case 'input':
+        initWrapperState(domElement, rawProps);
+        props = getHostProps(domElement, rawProps); // We listen to this event in case to ensure emulated bubble
+        // listeners still fire for the invalid event.
+
+        listenToNonDelegatedEvent('invalid', domElement);
+
+        break;
+
+      case 'option':
+        validateProps(domElement, rawProps);
+        props = getHostProps$1(domElement, rawProps);
+        break;
+
+      case 'select':
+        initWrapperState$1(domElement, rawProps);
+        props = getHostProps$2(domElement, rawProps); // We listen to this event in case to ensure emulated bubble
+        // listeners still fire for the invalid event.
+
+        listenToNonDelegatedEvent('invalid', domElement);
+
+        break;
+
+      case 'textarea':
+        initWrapperState$2(domElement, rawProps);
+        props = getHostProps$3(domElement, rawProps); // We listen to this event in case to ensure emulated bubble
+        // listeners still fire for the invalid event.
+
+        listenToNonDelegatedEvent('invalid', domElement);
+
+        break;
+
+      default:
+        props = rawProps;
+    }
+
+    assertValidProps(tag, props);
+    setInitialDOMProperties(tag, domElement, rootContainerElement, props, isCustomComponentTag);
+
+    switch (tag) {
+      case 'input':
+        // TODO: Make sure we check if this is still unmounted or do any clean
+        // up necessary since we never stop tracking anymore.
+        track(domElement);
+        postMountWrapper(domElement, rawProps, false);
+        break;
+
+      case 'textarea':
+        // TODO: Make sure we check if this is still unmounted or do any clean
+        // up necessary since we never stop tracking anymore.
+        track(domElement);
+        postMountWrapper$3(domElement);
+        break;
+
+      case 'option':
+        postMountWrapper$1(domElement, rawProps);
+        break;
+
+      case 'select':
+        postMountWrapper$2(domElement, rawProps);
+        break;
+
+      default:
+        if (typeof props.onClick === 'function') {
+          // TODO: This cast may not be sound for SVG, MathML or custom elements.
+          trapClickOnNonInteractiveElement(domElement);
+        }
+
+        break;
+    }
+  } // Calculate the diff between the two objects.
+
+  function diffProperties(domElement, tag, lastRawProps, nextRawProps, rootContainerElement) {
+    {
+      validatePropertiesInDevelopment(tag, nextRawProps);
+    }
+
+    var updatePayload = null;
+    var lastProps;
+    var nextProps;
+
+    switch (tag) {
+      case 'input':
+        lastProps = getHostProps(domElement, lastRawProps);
+        nextProps = getHostProps(domElement, nextRawProps);
+        updatePayload = [];
+        break;
+
+      case 'option':
+        lastProps = getHostProps$1(domElement, lastRawProps);
+        nextProps = getHostProps$1(domElement, nextRawProps);
+        updatePayload = [];
+        break;
+
+      case 'select':
+        lastProps = getHostProps$2(domElement, lastRawProps);
+        nextProps = getHostProps$2(domElement, nextRawProps);
+        updatePayload = [];
+        break;
+
+      case 'textarea':
+        lastProps = getHostProps$3(domElement, lastRawProps);
+        nextProps = getHostProps$3(domElement, nextRawProps);
+        updatePayload = [];
+        break;
+
+      default:
+        lastProps = lastRawProps;
+        nextProps = nextRawProps;
+
+        if (typeof lastProps.onClick !== 'function' && typeof nextProps.onClick === 'function') {
+          // TODO: This cast may not be sound for SVG, MathML or custom elements.
+          trapClickOnNonInteractiveElement(domElement);
+        }
+
+        break;
+    }
+
+    assertValidProps(tag, nextProps);
+    var propKey;
+    var styleName;
+    var styleUpdates = null;
+
+    for (propKey in lastProps) {
+      if (nextProps.hasOwnProperty(propKey) || !lastProps.hasOwnProperty(propKey) || lastProps[propKey] == null) {
+        continue;
+      }
+
+      if (propKey === STYLE) {
+        var lastStyle = lastProps[propKey];
+
+        for (styleName in lastStyle) {
+          if (lastStyle.hasOwnProperty(styleName)) {
+            if (!styleUpdates) {
+              styleUpdates = {};
+            }
+
+            styleUpdates[styleName] = '';
+          }
+        }
+      } else if (propKey === DANGEROUSLY_SET_INNER_HTML || propKey === CHILDREN) ; else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING) ; else if (propKey === AUTOFOCUS) ; else if (registrationNameDependencies.hasOwnProperty(propKey)) {
+        // This is a special case. If any listener updates we need to ensure
+        // that the "current" fiber pointer gets updated so we need a commit
+        // to update this element.
+        if (!updatePayload) {
+          updatePayload = [];
+        }
+      } else {
+        // For all other deleted properties we add it to the queue. We use
+        // the allowed property list in the commit phase instead.
+        (updatePayload = updatePayload || []).push(propKey, null);
+      }
+    }
+
+    for (propKey in nextProps) {
+      var nextProp = nextProps[propKey];
+      var lastProp = lastProps != null ? lastProps[propKey] : undefined;
+
+      if (!nextProps.hasOwnProperty(propKey) || nextProp === lastProp || nextProp == null && lastProp == null) {
+        continue;
+      }
+
+      if (propKey === STYLE) {
+        {
+          if (nextProp) {
+            // Freeze the next style object so that we can assume it won't be
+            // mutated. We have already warned for this in the past.
+            Object.freeze(nextProp);
+          }
+        }
+
+        if (lastProp) {
+          // Unset styles on `lastProp` but not on `nextProp`.
+          for (styleName in lastProp) {
+            if (lastProp.hasOwnProperty(styleName) && (!nextProp || !nextProp.hasOwnProperty(styleName))) {
+              if (!styleUpdates) {
+                styleUpdates = {};
+              }
+
+              styleUpdates[styleName] = '';
+            }
+          } // Update styles that changed since `lastProp`.
+
+
+          for (styleName in nextProp) {
+            if (nextProp.hasOwnProperty(styleName) && lastProp[styleName] !== nextProp[styleName]) {
+              if (!styleUpdates) {
+                styleUpdates = {};
+              }
+
+              styleUpdates[styleName] = nextProp[styleName];
+            }
+          }
+        } else {
+          // Relies on `updateStylesByID` not mutating `styleUpdates`.
+          if (!styleUpdates) {
+            if (!updatePayload) {
+              updatePayload = [];
+            }
+
+            updatePayload.push(propKey, styleUpdates);
+          }
+
+          styleUpdates = nextProp;
+        }
+      } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
+        var nextHtml = nextProp ? nextProp[HTML$1] : undefined;
+        var lastHtml = lastProp ? lastProp[HTML$1] : undefined;
+
+        if (nextHtml != null) {
+          if (lastHtml !== nextHtml) {
+            (updatePayload = updatePayload || []).push(propKey, nextHtml);
+          }
+        }
+      } else if (propKey === CHILDREN) {
+        if (typeof nextProp === 'string' || typeof nextProp === 'number') {
+          (updatePayload = updatePayload || []).push(propKey, '' + nextProp);
+        }
+      } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING) ; else if (registrationNameDependencies.hasOwnProperty(propKey)) {
+        if (nextProp != null) {
+          // We eagerly listen to this even though we haven't committed yet.
+          if ( typeof nextProp !== 'function') {
+            warnForInvalidEventListener(propKey, nextProp);
+          }
+
+          if (propKey === 'onScroll') {
+            listenToNonDelegatedEvent('scroll', domElement);
+          }
+        }
+
+        if (!updatePayload && lastProp !== nextProp) {
+          // This is a special case. If any listener updates we need to ensure
+          // that the "current" props pointer gets updated so we need a commit
+          // to update this element.
+          updatePayload = [];
+        }
+      } else if (typeof nextProp === 'object' && nextProp !== null && nextProp.$$typeof === REACT_OPAQUE_ID_TYPE) {
+        // If we encounter useOpaqueReference's opaque object, this means we are hydrating.
+        // In this case, call the opaque object's toString function which generates a new client
+        // ID so client and server IDs match and throws to rerender.
+        nextProp.toString();
+      } else {
+        // For any other property we always add it to the queue and then we
+        // filter it out using the allowed property list during the commit.
+        (updatePayload = updatePayload || []).push(propKey, nextProp);
+      }
+    }
+
+    if (styleUpdates) {
+      {
+        validateShorthandPropertyCollisionInDev(styleUpdates, nextProps[STYLE]);
+      }
+
+      (updatePayload = updatePayload || []).push(STYLE, styleUpdates);
+    }
+
+    return updatePayload;
+  } // Apply the diff.
+
+  function updateProperties(domElement, updatePayload, tag, lastRawProps, nextRawProps) {
+    // Update checked *before* name.
+    // In the middle of an update, it is possible to have multiple checked.
+    // When a checked radio tries to change name, browser makes another radio's checked false.
+    if (tag === 'input' && nextRawProps.type === 'radio' && nextRawProps.name != null) {
+      updateChecked(domElement, nextRawProps);
+    }
+
+    var wasCustomComponentTag = isCustomComponent(tag, lastRawProps);
+    var isCustomComponentTag = isCustomComponent(tag, nextRawProps); // Apply the diff.
+
+    updateDOMProperties(domElement, updatePayload, wasCustomComponentTag, isCustomComponentTag); // TODO: Ensure that an update gets scheduled if any of the special props
+    // changed.
+
+    switch (tag) {
+      case 'input':
+        // Update the wrapper around inputs *after* updating props. This has to
+        // happen after `updateDOMProperties`. Otherwise HTML5 input validations
+        // raise warnings and prevent the new value from being assigned.
+        updateWrapper(domElement, nextRawProps);
+        break;
+
+      case 'textarea':
+        updateWrapper$1(domElement, nextRawProps);
+        break;
+
+      case 'select':
+        // <select> value update needs to occur after <option> children
+        // reconciliation
+        postUpdateWrapper(domElement, nextRawProps);
+        break;
+    }
+  }
+
+  function getPossibleStandardName(propName) {
+    {
+      var lowerCasedName = propName.toLowerCase();
+
+      if (!possibleStandardNames.hasOwnProperty(lowerCasedName)) {
+        return null;
+      }
+
+      return possibleStandardNames[lowerCasedName] || null;
+    }
+  }
+
+  function diffHydratedProperties(domElement, tag, rawProps, parentNamespace, rootContainerElement) {
+    var isCustomComponentTag;
+    var extraAttributeNames;
+
+    {
+      suppressHydrationWarning = rawProps[SUPPRESS_HYDRATION_WARNING] === true;
+      isCustomComponentTag = isCustomComponent(tag, rawProps);
+      validatePropertiesInDevelopment(tag, rawProps);
+    } // TODO: Make sure that we check isMounted before firing any of these events.
+
+
+    switch (tag) {
+      case 'dialog':
+        listenToNonDelegatedEvent('cancel', domElement);
+        listenToNonDelegatedEvent('close', domElement);
+        break;
+
+      case 'iframe':
+      case 'object':
+      case 'embed':
+        // We listen to this event in case to ensure emulated bubble
+        // listeners still fire for the load event.
+        listenToNonDelegatedEvent('load', domElement);
+        break;
+
+      case 'video':
+      case 'audio':
+        // We listen to these events in case to ensure emulated bubble
+        // listeners still fire for all the media events.
+        for (var i = 0; i < mediaEventTypes.length; i++) {
+          listenToNonDelegatedEvent(mediaEventTypes[i], domElement);
+        }
+
+        break;
+
+      case 'source':
+        // We listen to this event in case to ensure emulated bubble
+        // listeners still fire for the error event.
+        listenToNonDelegatedEvent('error', domElement);
+        break;
+
+      case 'img':
+      case 'image':
+      case 'link':
+        // We listen to these events in case to ensure emulated bubble
+        // listeners still fire for error and load events.
+        listenToNonDelegatedEvent('error', domElement);
+        listenToNonDelegatedEvent('load', domElement);
+        break;
+
+      case 'details':
+        // We listen to this event in case to ensure emulated bubble
+        // listeners still fire for the toggle event.
+        listenToNonDelegatedEvent('toggle', domElement);
+        break;
+
+      case 'input':
+        initWrapperState(domElement, rawProps); // We listen to this event in case to ensure emulated bubble
+        // listeners still fire for the invalid event.
+
+        listenToNonDelegatedEvent('invalid', domElement);
+
+        break;
+
+      case 'option':
+        validateProps(domElement, rawProps);
+        break;
+
+      case 'select':
+        initWrapperState$1(domElement, rawProps); // We listen to this event in case to ensure emulated bubble
+        // listeners still fire for the invalid event.
+
+        listenToNonDelegatedEvent('invalid', domElement);
+
+        break;
+
+      case 'textarea':
+        initWrapperState$2(domElement, rawProps); // We listen to this event in case to ensure emulated bubble
+        // listeners still fire for the invalid event.
+
+        listenToNonDelegatedEvent('invalid', domElement);
+
+        break;
+    }
+
+    assertValidProps(tag, rawProps);
+
+    {
+      extraAttributeNames = new Set();
+      var attributes = domElement.attributes;
+
+      for (var _i = 0; _i < attributes.length; _i++) {
+        var name = attributes[_i].name.toLowerCase();
+
+        switch (name) {
+          // Built-in SSR attribute is allowed
+          case 'data-reactroot':
+            break;
+          // Controlled attributes are not validated
+          // TODO: Only ignore them on controlled tags.
+
+          case 'value':
+            break;
+
+          case 'checked':
+            break;
+
+          case 'selected':
+            break;
+
+          default:
+            // Intentionally use the original name.
+            // See discussion in https://github.com/facebook/react/pull/10676.
+            extraAttributeNames.add(attributes[_i].name);
+        }
+      }
+    }
+
+    var updatePayload = null;
+
+    for (var propKey in rawProps) {
+      if (!rawProps.hasOwnProperty(propKey)) {
+        continue;
+      }
+
+      var nextProp = rawProps[propKey];
+
+      if (propKey === CHILDREN) {
+        // For text content children we compare against textContent. This
+        // might match additional HTML that is hidden when we read it using
+        // textContent. E.g. "foo" will match "f<span>oo</span>" but that still
+        // satisfies our requirement. Our requirement is not to produce perfect
+        // HTML and attributes. Ideally we should preserve structure but it's
+        // ok not to if the visible content is still enough to indicate what
+        // even listeners these nodes might be wired up to.
+        // TODO: Warn if there is more than a single textNode as a child.
+        // TODO: Should we use domElement.firstChild.nodeValue to compare?
+        if (typeof nextProp === 'string') {
+          if (domElement.textContent !== nextProp) {
+            if ( !suppressHydrationWarning) {
+              warnForTextDifference(domElement.textContent, nextProp);
+            }
+
+            updatePayload = [CHILDREN, nextProp];
+          }
+        } else if (typeof nextProp === 'number') {
+          if (domElement.textContent !== '' + nextProp) {
+            if ( !suppressHydrationWarning) {
+              warnForTextDifference(domElement.textContent, nextProp);
+            }
+
+            updatePayload = [CHILDREN, '' + nextProp];
+          }
+        }
+      } else if (registrationNameDependencies.hasOwnProperty(propKey)) {
+        if (nextProp != null) {
+          if ( typeof nextProp !== 'function') {
+            warnForInvalidEventListener(propKey, nextProp);
+          }
+
+          if (propKey === 'onScroll') {
+            listenToNonDelegatedEvent('scroll', domElement);
+          }
+        }
+      } else if ( // Convince Flow we've calculated it (it's DEV-only in this method.)
+      typeof isCustomComponentTag === 'boolean') {
+        // Validate that the properties correspond to their expected values.
+        var serverValue = void 0;
+        var propertyInfo = getPropertyInfo(propKey);
+
+        if (suppressHydrationWarning) ; else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING || // Controlled attributes are not validated
+        // TODO: Only ignore them on controlled tags.
+        propKey === 'value' || propKey === 'checked' || propKey === 'selected') ; else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
+          var serverHTML = domElement.innerHTML;
+          var nextHtml = nextProp ? nextProp[HTML$1] : undefined;
+
+          if (nextHtml != null) {
+            var expectedHTML = normalizeHTML(domElement, nextHtml);
+
+            if (expectedHTML !== serverHTML) {
+              warnForPropDifference(propKey, serverHTML, expectedHTML);
+            }
+          }
+        } else if (propKey === STYLE) {
+          // $FlowFixMe - Should be inferred as not undefined.
+          extraAttributeNames.delete(propKey);
+
+          if (canDiffStyleForHydrationWarning) {
+            var expectedStyle = createDangerousStringForStyles(nextProp);
+            serverValue = domElement.getAttribute('style');
+
+            if (expectedStyle !== serverValue) {
+              warnForPropDifference(propKey, serverValue, expectedStyle);
+            }
+          }
+        } else if (isCustomComponentTag) {
+          // $FlowFixMe - Should be inferred as not undefined.
+          extraAttributeNames.delete(propKey.toLowerCase());
+          serverValue = getValueForAttribute(domElement, propKey, nextProp);
+
+          if (nextProp !== serverValue) {
+            warnForPropDifference(propKey, serverValue, nextProp);
+          }
+        } else if (!shouldIgnoreAttribute(propKey, propertyInfo, isCustomComponentTag) && !shouldRemoveAttribute(propKey, nextProp, propertyInfo, isCustomComponentTag)) {
+          var isMismatchDueToBadCasing = false;
+
+          if (propertyInfo !== null) {
+            // $FlowFixMe - Should be inferred as not undefined.
+            extraAttributeNames.delete(propertyInfo.attributeName);
+            serverValue = getValueForProperty(domElement, propKey, nextProp, propertyInfo);
+          } else {
+            var ownNamespace = parentNamespace;
+
+            if (ownNamespace === HTML_NAMESPACE$1) {
+              ownNamespace = getIntrinsicNamespace(tag);
+            }
+
+            if (ownNamespace === HTML_NAMESPACE$1) {
+              // $FlowFixMe - Should be inferred as not undefined.
+              extraAttributeNames.delete(propKey.toLowerCase());
+            } else {
+              var standardName = getPossibleStandardName(propKey);
+
+              if (standardName !== null && standardName !== propKey) {
+                // If an SVG prop is supplied with bad casing, it will
+                // be successfully parsed from HTML, but will produce a mismatch
+                // (and would be incorrectly rendered on the client).
+                // However, we already warn about bad casing elsewhere.
+                // So we'll skip the misleading extra mismatch warning in this case.
+                isMismatchDueToBadCasing = true; // $FlowFixMe - Should be inferred as not undefined.
+
+                extraAttributeNames.delete(standardName);
+              } // $FlowFixMe - Should be inferred as not undefined.
+
+
+              extraAttributeNames.delete(propKey);
+            }
+
+            serverValue = getValueForAttribute(domElement, propKey, nextProp);
+          }
+
+          if (nextProp !== serverValue && !isMismatchDueToBadCasing) {
+            warnForPropDifference(propKey, serverValue, nextProp);
+          }
+        }
+      }
+    }
+
+    {
+      // $FlowFixMe - Should be inferred as not undefined.
+      if (extraAttributeNames.size > 0 && !suppressHydrationWarning) {
+        // $FlowFixMe - Should be inferred as not undefined.
+        warnForExtraAttributes(extraAttributeNames);
+      }
+    }
+
+    switch (tag) {
+      case 'input':
+        // TODO: Make sure we check if this is still unmounted or do any clean
+        // up necessary since we never stop tracking anymore.
+        track(domElement);
+        postMountWrapper(domElement, rawProps, true);
+        break;
+
+      case 'textarea':
+        // TODO: Make sure we check if this is still unmounted or do any clean
+        // up necessary since we never stop tracking anymore.
+        track(domElement);
+        postMountWrapper$3(domElement);
+        break;
+
+      case 'select':
+      case 'option':
+        // For input and textarea we current always set the value property at
+        // post mount to force it to diverge from attributes. However, for
+        // option and select we don't quite do the same thing and select
+        // is not resilient to the DOM state changing so we don't do that here.
+        // TODO: Consider not doing this for input and textarea.
+        break;
+
+      default:
+        if (typeof rawProps.onClick === 'function') {
+          // TODO: This cast may not be sound for SVG, MathML or custom elements.
+          trapClickOnNonInteractiveElement(domElement);
+        }
+
+        break;
+    }
+
+    return updatePayload;
+  }
+  function diffHydratedText(textNode, text) {
+    var isDifferent = textNode.nodeValue !== text;
+    return isDifferent;
+  }
+  function warnForUnmatchedText(textNode, text) {
+    {
+      warnForTextDifference(textNode.nodeValue, text);
+    }
+  }
+  function warnForDeletedHydratableElement(parentNode, child) {
+    {
+      if (didWarnInvalidHydration) {
+        return;
+      }
+
+      didWarnInvalidHydration = true;
+
+      error('Did not expect server HTML to contain a <%s> in <%s>.', child.nodeName.toLowerCase(), parentNode.nodeName.toLowerCase());
+    }
+  }
+  function warnForDeletedHydratableText(parentNode, child) {
+    {
+      if (didWarnInvalidHydration) {
+        return;
+      }
+
+      didWarnInvalidHydration = true;
+
+      error('Did not expect server HTML to contain the text node "%s" in <%s>.', child.nodeValue, parentNode.nodeName.toLowerCase());
+    }
+  }
+  function warnForInsertedHydratedElement(parentNode, tag, props) {
+    {
+      if (didWarnInvalidHydration) {
+        return;
+      }
+
+      didWarnInvalidHydration = true;
+
+      error('Expected server HTML to contain a matching <%s> in <%s>.', tag, parentNode.nodeName.toLowerCase());
+    }
+  }
+  function warnForInsertedHydratedText(parentNode, text) {
+    {
+      if (text === '') {
+        // We expect to insert empty text nodes since they're not represented in
+        // the HTML.
+        // TODO: Remove this special case if we can just avoid inserting empty
+        // text nodes.
+        return;
+      }
+
+      if (didWarnInvalidHydration) {
+        return;
+      }
+
+      didWarnInvalidHydration = true;
+
+      error('Expected server HTML to contain a matching text node for "%s" in <%s>.', text, parentNode.nodeName.toLowerCase());
+    }
+  }
+  function restoreControlledState$3(domElement, tag, props) {
+    switch (tag) {
+      case 'input':
+        restoreControlledState(domElement, props);
+        return;
+
+      case 'textarea':
+        restoreControlledState$2(domElement, props);
+        return;
+
+      case 'select':
+        restoreControlledState$1(domElement, props);
+        return;
+    }
+  }
+
+  var validateDOMNesting = function () {};
+
+  var updatedAncestorInfo = function () {};
+
+  {
+    // This validation code was written based on the HTML5 parsing spec:
+    // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-scope
+    //
+    // Note: this does not catch all invalid nesting, nor does it try to (as it's
+    // not clear what practical benefit doing so provides); instead, we warn only
+    // for cases where the parser will give a parse tree differing from what React
+    // intended. For example, <b><div></div></b> is invalid but we don't warn
+    // because it still parses correctly; we do warn for other cases like nested
+    // <p> tags where the beginning of the second element implicitly closes the
+    // first, causing a confusing mess.
+    // https://html.spec.whatwg.org/multipage/syntax.html#special
+    var specialTags = ['address', 'applet', 'area', 'article', 'aside', 'base', 'basefont', 'bgsound', 'blockquote', 'body', 'br', 'button', 'caption', 'center', 'col', 'colgroup', 'dd', 'details', 'dir', 'div', 'dl', 'dt', 'embed', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'frame', 'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'header', 'hgroup', 'hr', 'html', 'iframe', 'img', 'input', 'isindex', 'li', 'link', 'listing', 'main', 'marquee', 'menu', 'menuitem', 'meta', 'nav', 'noembed', 'noframes', 'noscript', 'object', 'ol', 'p', 'param', 'plaintext', 'pre', 'script', 'section', 'select', 'source', 'style', 'summary', 'table', 'tbody', 'td', 'template', 'textarea', 'tfoot', 'th', 'thead', 'title', 'tr', 'track', 'ul', 'wbr', 'xmp']; // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-scope
+
+    var inScopeTags = ['applet', 'caption', 'html', 'table', 'td', 'th', 'marquee', 'object', 'template', // https://html.spec.whatwg.org/multipage/syntax.html#html-integration-point
+    // TODO: Distinguish by namespace here -- for <title>, including it here
+    // errs on the side of fewer warnings
+    'foreignObject', 'desc', 'title']; // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-button-scope
+
+    var buttonScopeTags = inScopeTags.concat(['button']); // https://html.spec.whatwg.org/multipage/syntax.html#generate-implied-end-tags
+
+    var impliedEndTags = ['dd', 'dt', 'li', 'option', 'optgroup', 'p', 'rp', 'rt'];
+    var emptyAncestorInfo = {
+      current: null,
+      formTag: null,
+      aTagInScope: null,
+      buttonTagInScope: null,
+      nobrTagInScope: null,
+      pTagInButtonScope: null,
+      listItemTagAutoclosing: null,
+      dlItemTagAutoclosing: null
+    };
+
+    updatedAncestorInfo = function (oldInfo, tag) {
+      var ancestorInfo = _assign({}, oldInfo || emptyAncestorInfo);
+
+      var info = {
+        tag: tag
+      };
+
+      if (inScopeTags.indexOf(tag) !== -1) {
+        ancestorInfo.aTagInScope = null;
+        ancestorInfo.buttonTagInScope = null;
+        ancestorInfo.nobrTagInScope = null;
+      }
+
+      if (buttonScopeTags.indexOf(tag) !== -1) {
+        ancestorInfo.pTagInButtonScope = null;
+      } // See rules for 'li', 'dd', 'dt' start tags in
+      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inbody
+
+
+      if (specialTags.indexOf(tag) !== -1 && tag !== 'address' && tag !== 'div' && tag !== 'p') {
+        ancestorInfo.listItemTagAutoclosing = null;
+        ancestorInfo.dlItemTagAutoclosing = null;
+      }
+
+      ancestorInfo.current = info;
+
+      if (tag === 'form') {
+        ancestorInfo.formTag = info;
+      }
+
+      if (tag === 'a') {
+        ancestorInfo.aTagInScope = info;
+      }
+
+      if (tag === 'button') {
+        ancestorInfo.buttonTagInScope = info;
+      }
+
+      if (tag === 'nobr') {
+        ancestorInfo.nobrTagInScope = info;
+      }
+
+      if (tag === 'p') {
+        ancestorInfo.pTagInButtonScope = info;
+      }
+
+      if (tag === 'li') {
+        ancestorInfo.listItemTagAutoclosing = info;
+      }
+
+      if (tag === 'dd' || tag === 'dt') {
+        ancestorInfo.dlItemTagAutoclosing = info;
+      }
+
+      return ancestorInfo;
+    };
+    /**
+     * Returns whether
+     */
+
+
+    var isTagValidWithParent = function (tag, parentTag) {
+      // First, let's check if we're in an unusual parsing mode...
+      switch (parentTag) {
+        // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inselect
+        case 'select':
+          return tag === 'option' || tag === 'optgroup' || tag === '#text';
+
+        case 'optgroup':
+          return tag === 'option' || tag === '#text';
+        // Strictly speaking, seeing an <option> doesn't mean we're in a <select>
+        // but
+
+        case 'option':
+          return tag === '#text';
+        // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intd
+        // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-incaption
+        // No special behavior since these rules fall back to "in body" mode for
+        // all except special table nodes which cause bad parsing behavior anyway.
+        // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intr
+
+        case 'tr':
+          return tag === 'th' || tag === 'td' || tag === 'style' || tag === 'script' || tag === 'template';
+        // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intbody
+
+        case 'tbody':
+        case 'thead':
+        case 'tfoot':
+          return tag === 'tr' || tag === 'style' || tag === 'script' || tag === 'template';
+        // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-incolgroup
+
+        case 'colgroup':
+          return tag === 'col' || tag === 'template';
+        // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intable
+
+        case 'table':
+          return tag === 'caption' || tag === 'colgroup' || tag === 'tbody' || tag === 'tfoot' || tag === 'thead' || tag === 'style' || tag === 'script' || tag === 'template';
+        // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inhead
+
+        case 'head':
+          return tag === 'base' || tag === 'basefont' || tag === 'bgsound' || tag === 'link' || tag === 'meta' || tag === 'title' || tag === 'noscript' || tag === 'noframes' || tag === 'style' || tag === 'script' || tag === 'template';
+        // https://html.spec.whatwg.org/multipage/semantics.html#the-html-element
+
+        case 'html':
+          return tag === 'head' || tag === 'body' || tag === 'frameset';
+
+        case 'frameset':
+          return tag === 'frame';
+
+        case '#document':
+          return tag === 'html';
+      } // Probably in the "in body" parsing mode, so we outlaw only tag combos
+      // where the parsing rules cause implicit opens or closes to be added.
+      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inbody
+
+
+      switch (tag) {
+        case 'h1':
+        case 'h2':
+        case 'h3':
+        case 'h4':
+        case 'h5':
+        case 'h6':
+          return parentTag !== 'h1' && parentTag !== 'h2' && parentTag !== 'h3' && parentTag !== 'h4' && parentTag !== 'h5' && parentTag !== 'h6';
+
+        case 'rp':
+        case 'rt':
+          return impliedEndTags.indexOf(parentTag) === -1;
+
+        case 'body':
+        case 'caption':
+        case 'col':
+        case 'colgroup':
+        case 'frameset':
+        case 'frame':
+        case 'head':
+        case 'html':
+        case 'tbody':
+        case 'td':
+        case 'tfoot':
+        case 'th':
+        case 'thead':
+        case 'tr':
+          // These tags are only valid with a few parents that have special child
+          // parsing rules -- if we're down here, then none of those matched and
+          // so we allow it only if we don't know what the parent is, as all other
+          // cases are invalid.
+          return parentTag == null;
+      }
+
+      return true;
+    };
+    /**
+     * Returns whether
+     */
+
+
+    var findInvalidAncestorForTag = function (tag, ancestorInfo) {
+      switch (tag) {
+        case 'address':
+        case 'article':
+        case 'aside':
+        case 'blockquote':
+        case 'center':
+        case 'details':
+        case 'dialog':
+        case 'dir':
+        case 'div':
+        case 'dl':
+        case 'fieldset':
+        case 'figcaption':
+        case 'figure':
+        case 'footer':
+        case 'header':
+        case 'hgroup':
+        case 'main':
+        case 'menu':
+        case 'nav':
+        case 'ol':
+        case 'p':
+        case 'section':
+        case 'summary':
+        case 'ul':
+        case 'pre':
+        case 'listing':
+        case 'table':
+        case 'hr':
+        case 'xmp':
+        case 'h1':
+        case 'h2':
+        case 'h3':
+        case 'h4':
+        case 'h5':
+        case 'h6':
+          return ancestorInfo.pTagInButtonScope;
+
+        case 'form':
+          return ancestorInfo.formTag || ancestorInfo.pTagInButtonScope;
+
+        case 'li':
+          return ancestorInfo.listItemTagAutoclosing;
+
+        case 'dd':
+        case 'dt':
+          return ancestorInfo.dlItemTagAutoclosing;
+
+        case 'button':
+          return ancestorInfo.buttonTagInScope;
+
+        case 'a':
+          // Spec says something about storing a list of markers, but it sounds
+          // equivalent to this check.
+          return ancestorInfo.aTagInScope;
+
+        case 'nobr':
+          return ancestorInfo.nobrTagInScope;
+      }
+
+      return null;
+    };
+
+    var didWarn$1 = {};
+
+    validateDOMNesting = function (childTag, childText, ancestorInfo) {
+      ancestorInfo = ancestorInfo || emptyAncestorInfo;
+      var parentInfo = ancestorInfo.current;
+      var parentTag = parentInfo && parentInfo.tag;
+
+      if (childText != null) {
+        if (childTag != null) {
+          error('validateDOMNesting: when childText is passed, childTag should be null');
+        }
+
+        childTag = '#text';
+      }
+
+      var invalidParent = isTagValidWithParent(childTag, parentTag) ? null : parentInfo;
+      var invalidAncestor = invalidParent ? null : findInvalidAncestorForTag(childTag, ancestorInfo);
+      var invalidParentOrAncestor = invalidParent || invalidAncestor;
+
+      if (!invalidParentOrAncestor) {
+        return;
+      }
+
+      var ancestorTag = invalidParentOrAncestor.tag;
+      var warnKey = !!invalidParent + '|' + childTag + '|' + ancestorTag;
+
+      if (didWarn$1[warnKey]) {
+        return;
+      }
+
+      didWarn$1[warnKey] = true;
+      var tagDisplayName = childTag;
+      var whitespaceInfo = '';
+
+      if (childTag === '#text') {
+        if (/\S/.test(childText)) {
+          tagDisplayName = 'Text nodes';
+        } else {
+          tagDisplayName = 'Whitespace text nodes';
+          whitespaceInfo = " Make sure you don't have any extra whitespace between tags on " + 'each line of your source code.';
+        }
+      } else {
+        tagDisplayName = '<' + childTag + '>';
+      }
+
+      if (invalidParent) {
+        var info = '';
+
+        if (ancestorTag === 'table' && childTag === 'tr') {
+          info += ' Add a <tbody>, <thead> or <tfoot> to your code to match the DOM tree generated by ' + 'the browser.';
+        }
+
+        error('validateDOMNesting(...): %s cannot appear as a child of <%s>.%s%s', tagDisplayName, ancestorTag, whitespaceInfo, info);
+      } else {
+        error('validateDOMNesting(...): %s cannot appear as a descendant of ' + '<%s>.', tagDisplayName, ancestorTag);
+      }
+    };
+  }
+
+  var SUPPRESS_HYDRATION_WARNING$1;
+
+  {
+    SUPPRESS_HYDRATION_WARNING$1 = 'suppressHydrationWarning';
+  }
+
+  var SUSPENSE_START_DATA = '$';
+  var SUSPENSE_END_DATA = '/$';
+  var SUSPENSE_PENDING_START_DATA = '$?';
+  var SUSPENSE_FALLBACK_START_DATA = '$!';
+  var STYLE$1 = 'style';
+  var eventsEnabled = null;
+  var selectionInformation = null;
+
+  function shouldAutoFocusHostComponent(type, props) {
+    switch (type) {
+      case 'button':
+      case 'input':
+      case 'select':
+      case 'textarea':
+        return !!props.autoFocus;
+    }
+
+    return false;
+  }
+  function getRootHostContext(rootContainerInstance) {
+    var type;
+    var namespace;
+    var nodeType = rootContainerInstance.nodeType;
+
+    switch (nodeType) {
+      case DOCUMENT_NODE:
+      case DOCUMENT_FRAGMENT_NODE:
+        {
+          type = nodeType === DOCUMENT_NODE ? '#document' : '#fragment';
+          var root = rootContainerInstance.documentElement;
+          namespace = root ? root.namespaceURI : getChildNamespace(null, '');
+          break;
+        }
+
+      default:
+        {
+          var container = nodeType === COMMENT_NODE ? rootContainerInstance.parentNode : rootContainerInstance;
+          var ownNamespace = container.namespaceURI || null;
+          type = container.tagName;
+          namespace = getChildNamespace(ownNamespace, type);
+          break;
+        }
+    }
+
+    {
+      var validatedTag = type.toLowerCase();
+      var ancestorInfo = updatedAncestorInfo(null, validatedTag);
+      return {
+        namespace: namespace,
+        ancestorInfo: ancestorInfo
+      };
+    }
+  }
+  function getChildHostContext(parentHostContext, type, rootContainerInstance) {
+    {
+      var parentHostContextDev = parentHostContext;
+      var namespace = getChildNamespace(parentHostContextDev.namespace, type);
+      var ancestorInfo = updatedAncestorInfo(parentHostContextDev.ancestorInfo, type);
+      return {
+        namespace: namespace,
+        ancestorInfo: ancestorInfo
+      };
+    }
+  }
+  function getPublicInstance(instance) {
+    return instance;
+  }
+  function prepareForCommit(containerInfo) {
+    eventsEnabled = isEnabled();
+    selectionInformation = getSelectionInformation();
+    var activeInstance = null;
+
+    setEnabled(false);
+    return activeInstance;
+  }
+  function resetAfterCommit(containerInfo) {
+    restoreSelection(selectionInformation);
+    setEnabled(eventsEnabled);
+    eventsEnabled = null;
+    selectionInformation = null;
+  }
+  function createInstance(type, props, rootContainerInstance, hostContext, internalInstanceHandle) {
+    var parentNamespace;
+
+    {
+      // TODO: take namespace into account when validating.
+      var hostContextDev = hostContext;
+      validateDOMNesting(type, null, hostContextDev.ancestorInfo);
+
+      if (typeof props.children === 'string' || typeof props.children === 'number') {
+        var string = '' + props.children;
+        var ownAncestorInfo = updatedAncestorInfo(hostContextDev.ancestorInfo, type);
+        validateDOMNesting(null, string, ownAncestorInfo);
+      }
+
+      parentNamespace = hostContextDev.namespace;
+    }
+
+    var domElement = createElement(type, props, rootContainerInstance, parentNamespace);
+    precacheFiberNode(internalInstanceHandle, domElement);
+    updateFiberProps(domElement, props);
+    return domElement;
+  }
+  function appendInitialChild(parentInstance, child) {
+    parentInstance.appendChild(child);
+  }
+  function finalizeInitialChildren(domElement, type, props, rootContainerInstance, hostContext) {
+    setInitialProperties(domElement, type, props, rootContainerInstance);
+    return shouldAutoFocusHostComponent(type, props);
+  }
+  function prepareUpdate(domElement, type, oldProps, newProps, rootContainerInstance, hostContext) {
+    {
+      var hostContextDev = hostContext;
+
+      if (typeof newProps.children !== typeof oldProps.children && (typeof newProps.children === 'string' || typeof newProps.children === 'number')) {
+        var string = '' + newProps.children;
+        var ownAncestorInfo = updatedAncestorInfo(hostContextDev.ancestorInfo, type);
+        validateDOMNesting(null, string, ownAncestorInfo);
+      }
+    }
+
+    return diffProperties(domElement, type, oldProps, newProps);
+  }
+  function shouldSetTextContent(type, props) {
+    return type === 'textarea' || type === 'option' || type === 'noscript' || typeof props.children === 'string' || typeof props.children === 'number' || typeof props.dangerouslySetInnerHTML === 'object' && props.dangerouslySetInnerHTML !== null && props.dangerouslySetInnerHTML.__html != null;
+  }
+  function createTextInstance(text, rootContainerInstance, hostContext, internalInstanceHandle) {
+    {
+      var hostContextDev = hostContext;
+      validateDOMNesting(null, text, hostContextDev.ancestorInfo);
+    }
+
+    var textNode = createTextNode(text, rootContainerInstance);
+    precacheFiberNode(internalInstanceHandle, textNode);
+    return textNode;
+  }
+  // if a component just imports ReactDOM (e.g. for findDOMNode).
+  // Some environments might not have setTimeout or clearTimeout.
+
+  var scheduleTimeout = typeof setTimeout === 'function' ? setTimeout : undefined;
+  var cancelTimeout = typeof clearTimeout === 'function' ? clearTimeout : undefined;
+  var noTimeout = -1; // -------------------
+  function commitMount(domElement, type, newProps, internalInstanceHandle) {
+    // Despite the naming that might imply otherwise, this method only
+    // fires if there is an `Update` effect scheduled during mounting.
+    // This happens if `finalizeInitialChildren` returns `true` (which it
+    // does to implement the `autoFocus` attribute on the client). But
+    // there are also other cases when this might happen (such as patching
+    // up text content during hydration mismatch). So we'll check this again.
+    if (shouldAutoFocusHostComponent(type, newProps)) {
+      domElement.focus();
+    }
+  }
+  function commitUpdate(domElement, updatePayload, type, oldProps, newProps, internalInstanceHandle) {
+    // Update the props handle so that we know which props are the ones with
+    // with current event handlers.
+    updateFiberProps(domElement, newProps); // Apply the diff to the DOM node.
+
+    updateProperties(domElement, updatePayload, type, oldProps, newProps);
+  }
+  function resetTextContent(domElement) {
+    setTextContent(domElement, '');
+  }
+  function commitTextUpdate(textInstance, oldText, newText) {
+    textInstance.nodeValue = newText;
+  }
+  function appendChild(parentInstance, child) {
+    parentInstance.appendChild(child);
+  }
+  function appendChildToContainer(container, child) {
+    var parentNode;
+
+    if (container.nodeType === COMMENT_NODE) {
+      parentNode = container.parentNode;
+      parentNode.insertBefore(child, container);
+    } else {
+      parentNode = container;
+      parentNode.appendChild(child);
+    } // This container might be used for a portal.
+    // If something inside a portal is clicked, that click should bubble
+    // through the React tree. However, on Mobile Safari the click would
+    // never bubble through the *DOM* tree unless an ancestor with onclick
+    // event exists. So we wouldn't see it and dispatch it.
+    // This is why we ensure that non React root containers have inline onclick
+    // defined.
+    // https://github.com/facebook/react/issues/11918
+
+
+    var reactRootContainer = container._reactRootContainer;
+
+    if ((reactRootContainer === null || reactRootContainer === undefined) && parentNode.onclick === null) {
+      // TODO: This cast may not be sound for SVG, MathML or custom elements.
+      trapClickOnNonInteractiveElement(parentNode);
+    }
+  }
+  function insertBefore(parentInstance, child, beforeChild) {
+    parentInstance.insertBefore(child, beforeChild);
+  }
+  function insertInContainerBefore(container, child, beforeChild) {
+    if (container.nodeType === COMMENT_NODE) {
+      container.parentNode.insertBefore(child, beforeChild);
+    } else {
+      container.insertBefore(child, beforeChild);
+    }
+  }
+
+  function removeChild(parentInstance, child) {
+    parentInstance.removeChild(child);
+  }
+  function removeChildFromContainer(container, child) {
+    if (container.nodeType === COMMENT_NODE) {
+      container.parentNode.removeChild(child);
+    } else {
+      container.removeChild(child);
+    }
+  }
+  function hideInstance(instance) {
+    // TODO: Does this work for all element types? What about MathML? Should we
+    // pass host context to this method?
+    instance = instance;
+    var style = instance.style;
+
+    if (typeof style.setProperty === 'function') {
+      style.setProperty('display', 'none', 'important');
+    } else {
+      style.display = 'none';
+    }
+  }
+  function hideTextInstance(textInstance) {
+    textInstance.nodeValue = '';
+  }
+  function unhideInstance(instance, props) {
+    instance = instance;
+    var styleProp = props[STYLE$1];
+    var display = styleProp !== undefined && styleProp !== null && styleProp.hasOwnProperty('display') ? styleProp.display : null;
+    instance.style.display = dangerousStyleValue('display', display);
+  }
+  function unhideTextInstance(textInstance, text) {
+    textInstance.nodeValue = text;
+  }
+  function clearContainer(container) {
+    if (container.nodeType === ELEMENT_NODE) {
+      container.textContent = '';
+    } else if (container.nodeType === DOCUMENT_NODE) {
+      var body = container.body;
+
+      if (body != null) {
+        body.textContent = '';
+      }
+    }
+  } // -------------------
+  function canHydrateInstance(instance, type, props) {
+    if (instance.nodeType !== ELEMENT_NODE || type.toLowerCase() !== instance.nodeName.toLowerCase()) {
+      return null;
+    } // This has now been refined to an element node.
+
+
+    return instance;
+  }
+  function canHydrateTextInstance(instance, text) {
+    if (text === '' || instance.nodeType !== TEXT_NODE) {
+      // Empty strings are not parsed by HTML so there won't be a correct match here.
+      return null;
+    } // This has now been refined to a text node.
+
+
+    return instance;
+  }
+  function isSuspenseInstancePending(instance) {
+    return instance.data === SUSPENSE_PENDING_START_DATA;
+  }
+  function isSuspenseInstanceFallback(instance) {
+    return instance.data === SUSPENSE_FALLBACK_START_DATA;
+  }
+
+  function getNextHydratable(node) {
+    // Skip non-hydratable nodes.
+    for (; node != null; node = node.nextSibling) {
+      var nodeType = node.nodeType;
+
+      if (nodeType === ELEMENT_NODE || nodeType === TEXT_NODE) {
+        break;
+      }
+    }
+
+    return node;
+  }
+
+  function getNextHydratableSibling(instance) {
+    return getNextHydratable(instance.nextSibling);
+  }
+  function getFirstHydratableChild(parentInstance) {
+    return getNextHydratable(parentInstance.firstChild);
+  }
+  function hydrateInstance(instance, type, props, rootContainerInstance, hostContext, internalInstanceHandle) {
+    precacheFiberNode(internalInstanceHandle, instance); // TODO: Possibly defer this until the commit phase where all the events
+    // get attached.
+
+    updateFiberProps(instance, props);
+    var parentNamespace;
+
+    {
+      var hostContextDev = hostContext;
+      parentNamespace = hostContextDev.namespace;
+    }
+
+    return diffHydratedProperties(instance, type, props, parentNamespace);
+  }
+  function hydrateTextInstance(textInstance, text, internalInstanceHandle) {
+    precacheFiberNode(internalInstanceHandle, textInstance);
+    return diffHydratedText(textInstance, text);
+  }
+  function getNextHydratableInstanceAfterSuspenseInstance(suspenseInstance) {
+    var node = suspenseInstance.nextSibling; // Skip past all nodes within this suspense boundary.
+    // There might be nested nodes so we need to keep track of how
+    // deep we are and only break out when we're back on top.
+
+    var depth = 0;
+
+    while (node) {
+      if (node.nodeType === COMMENT_NODE) {
+        var data = node.data;
+
+        if (data === SUSPENSE_END_DATA) {
+          if (depth === 0) {
+            return getNextHydratableSibling(node);
+          } else {
+            depth--;
+          }
+        } else if (data === SUSPENSE_START_DATA || data === SUSPENSE_FALLBACK_START_DATA || data === SUSPENSE_PENDING_START_DATA) {
+          depth++;
+        }
+      }
+
+      node = node.nextSibling;
+    } // TODO: Warn, we didn't find the end comment boundary.
+
+
+    return null;
+  } // Returns the SuspenseInstance if this node is a direct child of a
+  // SuspenseInstance. I.e. if its previous sibling is a Comment with
+  // SUSPENSE_x_START_DATA. Otherwise, null.
+
+  function getParentSuspenseInstance(targetInstance) {
+    var node = targetInstance.previousSibling; // Skip past all nodes within this suspense boundary.
+    // There might be nested nodes so we need to keep track of how
+    // deep we are and only break out when we're back on top.
+
+    var depth = 0;
+
+    while (node) {
+      if (node.nodeType === COMMENT_NODE) {
+        var data = node.data;
+
+        if (data === SUSPENSE_START_DATA || data === SUSPENSE_FALLBACK_START_DATA || data === SUSPENSE_PENDING_START_DATA) {
+          if (depth === 0) {
+            return node;
+          } else {
+            depth--;
+          }
+        } else if (data === SUSPENSE_END_DATA) {
+          depth++;
+        }
+      }
+
+      node = node.previousSibling;
+    }
+
+    return null;
+  }
+  function commitHydratedContainer(container) {
+    // Retry if any event replaying was blocked on this.
+    retryIfBlockedOn(container);
+  }
+  function commitHydratedSuspenseInstance(suspenseInstance) {
+    // Retry if any event replaying was blocked on this.
+    retryIfBlockedOn(suspenseInstance);
+  }
+  function didNotMatchHydratedContainerTextInstance(parentContainer, textInstance, text) {
+    {
+      warnForUnmatchedText(textInstance, text);
+    }
+  }
+  function didNotMatchHydratedTextInstance(parentType, parentProps, parentInstance, textInstance, text) {
+    if ( parentProps[SUPPRESS_HYDRATION_WARNING$1] !== true) {
+      warnForUnmatchedText(textInstance, text);
+    }
+  }
+  function didNotHydrateContainerInstance(parentContainer, instance) {
+    {
+      if (instance.nodeType === ELEMENT_NODE) {
+        warnForDeletedHydratableElement(parentContainer, instance);
+      } else if (instance.nodeType === COMMENT_NODE) ; else {
+        warnForDeletedHydratableText(parentContainer, instance);
+      }
+    }
+  }
+  function didNotHydrateInstance(parentType, parentProps, parentInstance, instance) {
+    if ( parentProps[SUPPRESS_HYDRATION_WARNING$1] !== true) {
+      if (instance.nodeType === ELEMENT_NODE) {
+        warnForDeletedHydratableElement(parentInstance, instance);
+      } else if (instance.nodeType === COMMENT_NODE) ; else {
+        warnForDeletedHydratableText(parentInstance, instance);
+      }
+    }
+  }
+  function didNotFindHydratableContainerInstance(parentContainer, type, props) {
+    {
+      warnForInsertedHydratedElement(parentContainer, type);
+    }
+  }
+  function didNotFindHydratableContainerTextInstance(parentContainer, text) {
+    {
+      warnForInsertedHydratedText(parentContainer, text);
+    }
+  }
+  function didNotFindHydratableInstance(parentType, parentProps, parentInstance, type, props) {
+    if ( parentProps[SUPPRESS_HYDRATION_WARNING$1] !== true) {
+      warnForInsertedHydratedElement(parentInstance, type);
+    }
+  }
+  function didNotFindHydratableTextInstance(parentType, parentProps, parentInstance, text) {
+    if ( parentProps[SUPPRESS_HYDRATION_WARNING$1] !== true) {
+      warnForInsertedHydratedText(parentInstance, text);
+    }
+  }
+  function didNotFindHydratableSuspenseInstance(parentType, parentProps, parentInstance) {
+    if ( parentProps[SUPPRESS_HYDRATION_WARNING$1] !== true) ;
+  }
+  var clientId = 0;
+  function makeClientIdInDEV(warnOnAccessInDEV) {
+    var id = 'r:' + (clientId++).toString(36);
+    return {
+      toString: function () {
+        warnOnAccessInDEV();
+        return id;
+      },
+      valueOf: function () {
+        warnOnAccessInDEV();
+        return id;
+      }
+    };
+  }
+  function isOpaqueHydratingObject(value) {
+    return value !== null && typeof value === 'object' && value.$$typeof === REACT_OPAQUE_ID_TYPE;
+  }
+  function makeOpaqueHydratingObject(attemptToReadValue) {
+    return {
+      $$typeof: REACT_OPAQUE_ID_TYPE,
+      toString: attemptToReadValue,
+      valueOf: attemptToReadValue
+    };
+  }
+  function preparePortalMount(portalInstance) {
+    {
+      listenToAllSupportedEvents(portalInstance);
+    }
+  }
+
+  var randomKey = Math.random().toString(36).slice(2);
+  var internalInstanceKey = '__reactFiber$' + randomKey;
+  var internalPropsKey = '__reactProps$' + randomKey;
+  var internalContainerInstanceKey = '__reactContainer$' + randomKey;
+  var internalEventHandlersKey = '__reactEvents$' + randomKey;
+  function precacheFiberNode(hostInst, node) {
+    node[internalInstanceKey] = hostInst;
+  }
+  function markContainerAsRoot(hostRoot, node) {
+    node[internalContainerInstanceKey] = hostRoot;
+  }
+  function unmarkContainerAsRoot(node) {
+    node[internalContainerInstanceKey] = null;
+  }
+  function isContainerMarkedAsRoot(node) {
+    return !!node[internalContainerInstanceKey];
+  } // Given a DOM node, return the closest HostComponent or HostText fiber ancestor.
+  // If the target node is part of a hydrated or not yet rendered subtree, then
+  // this may also return a SuspenseComponent or HostRoot to indicate that.
+  // Conceptually the HostRoot fiber is a child of the Container node. So if you
+  // pass the Container node as the targetNode, you will not actually get the
+  // HostRoot back. To get to the HostRoot, you need to pass a child of it.
+  // The same thing applies to Suspense boundaries.
+
+  function getClosestInstanceFromNode(targetNode) {
+    var targetInst = targetNode[internalInstanceKey];
+
+    if (targetInst) {
+      // Don't return HostRoot or SuspenseComponent here.
+      return targetInst;
+    } // If the direct event target isn't a React owned DOM node, we need to look
+    // to see if one of its parents is a React owned DOM node.
+
+
+    var parentNode = targetNode.parentNode;
+
+    while (parentNode) {
+      // We'll check if this is a container root that could include
+      // React nodes in the future. We need to check this first because
+      // if we're a child of a dehydrated container, we need to first
+      // find that inner container before moving on to finding the parent
+      // instance. Note that we don't check this field on  the targetNode
+      // itself because the fibers are conceptually between the container
+      // node and the first child. It isn't surrounding the container node.
+      // If it's not a container, we check if it's an instance.
+      targetInst = parentNode[internalContainerInstanceKey] || parentNode[internalInstanceKey];
+
+      if (targetInst) {
+        // Since this wasn't the direct target of the event, we might have
+        // stepped past dehydrated DOM nodes to get here. However they could
+        // also have been non-React nodes. We need to answer which one.
+        // If we the instance doesn't have any children, then there can't be
+        // a nested suspense boundary within it. So we can use this as a fast
+        // bailout. Most of the time, when people add non-React children to
+        // the tree, it is using a ref to a child-less DOM node.
+        // Normally we'd only need to check one of the fibers because if it
+        // has ever gone from having children to deleting them or vice versa
+        // it would have deleted the dehydrated boundary nested inside already.
+        // However, since the HostRoot starts out with an alternate it might
+        // have one on the alternate so we need to check in case this was a
+        // root.
+        var alternate = targetInst.alternate;
+
+        if (targetInst.child !== null || alternate !== null && alternate.child !== null) {
+          // Next we need to figure out if the node that skipped past is
+          // nested within a dehydrated boundary and if so, which one.
+          var suspenseInstance = getParentSuspenseInstance(targetNode);
+
+          while (suspenseInstance !== null) {
+            // We found a suspense instance. That means that we haven't
+            // hydrated it yet. Even though we leave the comments in the
+            // DOM after hydrating, and there are boundaries in the DOM
+            // that could already be hydrated, we wouldn't have found them
+            // through this pass since if the target is hydrated it would
+            // have had an internalInstanceKey on it.
+            // Let's get the fiber associated with the SuspenseComponent
+            // as the deepest instance.
+            var targetSuspenseInst = suspenseInstance[internalInstanceKey];
+
+            if (targetSuspenseInst) {
+              return targetSuspenseInst;
+            } // If we don't find a Fiber on the comment, it might be because
+            // we haven't gotten to hydrate it yet. There might still be a
+            // parent boundary that hasn't above this one so we need to find
+            // the outer most that is known.
+
+
+            suspenseInstance = getParentSuspenseInstance(suspenseInstance); // If we don't find one, then that should mean that the parent
+            // host component also hasn't hydrated yet. We can return it
+            // below since it will bail out on the isMounted check later.
+          }
+        }
+
+        return targetInst;
+      }
+
+      targetNode = parentNode;
+      parentNode = targetNode.parentNode;
+    }
+
+    return null;
+  }
+  /**
+   * Given a DOM node, return the ReactDOMComponent or ReactDOMTextComponent
+   * instance, or null if the node was not rendered by this React.
+   */
+
+  function getInstanceFromNode(node) {
+    var inst = node[internalInstanceKey] || node[internalContainerInstanceKey];
+
+    if (inst) {
+      if (inst.tag === HostComponent || inst.tag === HostText || inst.tag === SuspenseComponent || inst.tag === HostRoot) {
+        return inst;
+      } else {
+        return null;
+      }
+    }
+
+    return null;
+  }
+  /**
+   * Given a ReactDOMComponent or ReactDOMTextComponent, return the corresponding
+   * DOM node.
+   */
+
+  function getNodeFromInstance(inst) {
+    if (inst.tag === HostComponent || inst.tag === HostText) {
+      // In Fiber this, is just the state node right now. We assume it will be
+      // a host component or host text.
+      return inst.stateNode;
+    } // Without this first invariant, passing a non-DOM-component triggers the next
+    // invariant for a missing parent, which is super confusing.
+
+
+    {
+      {
+        throw Error( "getNodeFromInstance: Invalid argument." );
+      }
+    }
+  }
+  function getFiberCurrentPropsFromNode(node) {
+    return node[internalPropsKey] || null;
+  }
+  function updateFiberProps(node, props) {
+    node[internalPropsKey] = props;
+  }
+  function getEventListenerSet(node) {
+    var elementListenerSet = node[internalEventHandlersKey];
+
+    if (elementListenerSet === undefined) {
+      elementListenerSet = node[internalEventHandlersKey] = new Set();
+    }
+
+    return elementListenerSet;
+  }
+
+  var loggedTypeFailures = {};
+  var ReactDebugCurrentFrame$1 = ReactSharedInternals.ReactDebugCurrentFrame;
+
+  function setCurrentlyValidatingElement(element) {
+    {
+      if (element) {
+        var owner = element._owner;
+        var stack = describeUnknownElementTypeFrameInDEV(element.type, element._source, owner ? owner.type : null);
+        ReactDebugCurrentFrame$1.setExtraStackFrame(stack);
+      } else {
+        ReactDebugCurrentFrame$1.setExtraStackFrame(null);
+      }
+    }
+  }
+
+  function checkPropTypes(typeSpecs, values, location, componentName, element) {
+    {
+      // $FlowFixMe This is okay but Flow doesn't know it.
+      var has = Function.call.bind(Object.prototype.hasOwnProperty);
+
+      for (var typeSpecName in typeSpecs) {
+        if (has(typeSpecs, typeSpecName)) {
+          var error$1 = void 0; // Prop type validation may throw. In case they do, we don't want to
+          // fail the render phase where it didn't fail before. So we log it.
+          // After these have been cleaned up, we'll let them throw.
+
+          try {
+            // This is intentionally an invariant that gets caught. It's the same
+            // behavior as without this statement except with a better message.
+            if (typeof typeSpecs[typeSpecName] !== 'function') {
+              var err = Error((componentName || 'React class') + ': ' + location + ' type `' + typeSpecName + '` is invalid; ' + 'it must be a function, usually from the `prop-types` package, but received `' + typeof typeSpecs[typeSpecName] + '`.' + 'This often happens because of typos such as `PropTypes.function` instead of `PropTypes.func`.');
+              err.name = 'Invariant Violation';
+              throw err;
+            }
+
+            error$1 = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED');
+          } catch (ex) {
+            error$1 = ex;
+          }
+
+          if (error$1 && !(error$1 instanceof Error)) {
+            setCurrentlyValidatingElement(element);
+
+            error('%s: type specification of %s' + ' `%s` is invalid; the type checker ' + 'function must return `null` or an `Error` but returned a %s. ' + 'You may have forgotten to pass an argument to the type checker ' + 'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' + 'shape all require an argument).', componentName || 'React class', location, typeSpecName, typeof error$1);
+
+            setCurrentlyValidatingElement(null);
+          }
+
+          if (error$1 instanceof Error && !(error$1.message in loggedTypeFailures)) {
+            // Only monitor this failure once because there tends to be a lot of the
+            // same error.
+            loggedTypeFailures[error$1.message] = true;
+            setCurrentlyValidatingElement(element);
+
+            error('Failed %s type: %s', location, error$1.message);
+
+            setCurrentlyValidatingElement(null);
+          }
+        }
+      }
+    }
+  }
+
+  var valueStack = [];
+  var fiberStack;
+
+  {
+    fiberStack = [];
+  }
+
+  var index = -1;
+
+  function createCursor(defaultValue) {
+    return {
+      current: defaultValue
+    };
+  }
+
+  function pop(cursor, fiber) {
+    if (index < 0) {
+      {
+        error('Unexpected pop.');
+      }
+
+      return;
+    }
+
+    {
+      if (fiber !== fiberStack[index]) {
+        error('Unexpected Fiber popped.');
+      }
+    }
+
+    cursor.current = valueStack[index];
+    valueStack[index] = null;
+
+    {
+      fiberStack[index] = null;
+    }
+
+    index--;
+  }
+
+  function push(cursor, value, fiber) {
+    index++;
+    valueStack[index] = cursor.current;
+
+    {
+      fiberStack[index] = fiber;
+    }
+
+    cursor.current = value;
+  }
+
+  var warnedAboutMissingGetChildContext;
+
+  {
+    warnedAboutMissingGetChildContext = {};
+  }
+
+  var emptyContextObject = {};
+
+  {
+    Object.freeze(emptyContextObject);
+  } // A cursor to the current merged context object on the stack.
+
+
+  var contextStackCursor = createCursor(emptyContextObject); // A cursor to a boolean indicating whether the context has changed.
+
+  var didPerformWorkStackCursor = createCursor(false); // Keep track of the previous context object that was on the stack.
+  // We use this to get access to the parent context after we have already
+  // pushed the next context provider, and now need to merge their contexts.
+
+  var previousContext = emptyContextObject;
+
+  function getUnmaskedContext(workInProgress, Component, didPushOwnContextIfProvider) {
+    {
+      if (didPushOwnContextIfProvider && isContextProvider(Component)) {
+        // If the fiber is a context provider itself, when we read its context
+        // we may have already pushed its own child context on the stack. A context
+        // provider should not "see" its own child context. Therefore we read the
+        // previous (parent) context instead for a context provider.
+        return previousContext;
+      }
+
+      return contextStackCursor.current;
+    }
+  }
+
+  function cacheContext(workInProgress, unmaskedContext, maskedContext) {
+    {
+      var instance = workInProgress.stateNode;
+      instance.__reactInternalMemoizedUnmaskedChildContext = unmaskedContext;
+      instance.__reactInternalMemoizedMaskedChildContext = maskedContext;
+    }
+  }
+
+  function getMaskedContext(workInProgress, unmaskedContext) {
+    {
+      var type = workInProgress.type;
+      var contextTypes = type.contextTypes;
+
+      if (!contextTypes) {
+        return emptyContextObject;
+      } // Avoid recreating masked context unless unmasked context has changed.
+      // Failing to do this will result in unnecessary calls to componentWillReceiveProps.
+      // This may trigger infinite loops if componentWillReceiveProps calls setState.
+
+
+      var instance = workInProgress.stateNode;
+
+      if (instance && instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext) {
+        return instance.__reactInternalMemoizedMaskedChildContext;
+      }
+
+      var context = {};
+
+      for (var key in contextTypes) {
+        context[key] = unmaskedContext[key];
+      }
+
+      {
+        var name = getComponentName(type) || 'Unknown';
+        checkPropTypes(contextTypes, context, 'context', name);
+      } // Cache unmasked context so we can avoid recreating masked context unless necessary.
+      // Context is created before the class component is instantiated so check for instance.
+
+
+      if (instance) {
+        cacheContext(workInProgress, unmaskedContext, context);
+      }
+
+      return context;
+    }
+  }
+
+  function hasContextChanged() {
+    {
+      return didPerformWorkStackCursor.current;
+    }
+  }
+
+  function isContextProvider(type) {
+    {
+      var childContextTypes = type.childContextTypes;
+      return childContextTypes !== null && childContextTypes !== undefined;
+    }
+  }
+
+  function popContext(fiber) {
+    {
+      pop(didPerformWorkStackCursor, fiber);
+      pop(contextStackCursor, fiber);
+    }
+  }
+
+  function popTopLevelContextObject(fiber) {
+    {
+      pop(didPerformWorkStackCursor, fiber);
+      pop(contextStackCursor, fiber);
+    }
+  }
+
+  function pushTopLevelContextObject(fiber, context, didChange) {
+    {
+      if (!(contextStackCursor.current === emptyContextObject)) {
+        {
+          throw Error( "Unexpected context found on stack. This error is likely caused by a bug in React. Please file an issue." );
+        }
+      }
+
+      push(contextStackCursor, context, fiber);
+      push(didPerformWorkStackCursor, didChange, fiber);
+    }
+  }
+
+  function processChildContext(fiber, type, parentContext) {
+    {
+      var instance = fiber.stateNode;
+      var childContextTypes = type.childContextTypes; // TODO (bvaughn) Replace this behavior with an invariant() in the future.
+      // It has only been added in Fiber to match the (unintentional) behavior in Stack.
+
+      if (typeof instance.getChildContext !== 'function') {
+        {
+          var componentName = getComponentName(type) || 'Unknown';
+
+          if (!warnedAboutMissingGetChildContext[componentName]) {
+            warnedAboutMissingGetChildContext[componentName] = true;
+
+            error('%s.childContextTypes is specified but there is no getChildContext() method ' + 'on the instance. You can either define getChildContext() on %s or remove ' + 'childContextTypes from it.', componentName, componentName);
+          }
+        }
+
+        return parentContext;
+      }
+
+      var childContext = instance.getChildContext();
+
+      for (var contextKey in childContext) {
+        if (!(contextKey in childContextTypes)) {
+          {
+            throw Error( (getComponentName(type) || 'Unknown') + ".getChildContext(): key \"" + contextKey + "\" is not defined in childContextTypes." );
+          }
+        }
+      }
+
+      {
+        var name = getComponentName(type) || 'Unknown';
+        checkPropTypes(childContextTypes, childContext, 'child context', name);
+      }
+
+      return _assign({}, parentContext, childContext);
+    }
+  }
+
+  function pushContextProvider(workInProgress) {
+    {
+      var instance = workInProgress.stateNode; // We push the context as early as possible to ensure stack integrity.
+      // If the instance does not exist yet, we will push null at first,
+      // and replace it on the stack later when invalidating the context.
+
+      var memoizedMergedChildContext = instance && instance.__reactInternalMemoizedMergedChildContext || emptyContextObject; // Remember the parent context so we can merge with it later.
+      // Inherit the parent's did-perform-work value to avoid inadvertently blocking updates.
+
+      previousContext = contextStackCursor.current;
+      push(contextStackCursor, memoizedMergedChildContext, workInProgress);
+      push(didPerformWorkStackCursor, didPerformWorkStackCursor.current, workInProgress);
+      return true;
+    }
+  }
+
+  function invalidateContextProvider(workInProgress, type, didChange) {
+    {
+      var instance = workInProgress.stateNode;
+
+      if (!instance) {
+        {
+          throw Error( "Expected to have an instance by this point. This error is likely caused by a bug in React. Please file an issue." );
+        }
+      }
+
+      if (didChange) {
+        // Merge parent and own context.
+        // Skip this if we're not updating due to sCU.
+        // This avoids unnecessarily recomputing memoized values.
+        var mergedContext = processChildContext(workInProgress, type, previousContext);
+        instance.__reactInternalMemoizedMergedChildContext = mergedContext; // Replace the old (or empty) context with the new one.
+        // It is important to unwind the context in the reverse order.
+
+        pop(didPerformWorkStackCursor, workInProgress);
+        pop(contextStackCursor, workInProgress); // Now push the new context and mark that it has changed.
+
+        push(contextStackCursor, mergedContext, workInProgress);
+        push(didPerformWorkStackCursor, didChange, workInProgress);
+      } else {
+        pop(didPerformWorkStackCursor, workInProgress);
+        push(didPerformWorkStackCursor, didChange, workInProgress);
+      }
+    }
+  }
+
+  function findCurrentUnmaskedContext(fiber) {
+    {
+      // Currently this is only used with renderSubtreeIntoContainer; not sure if it
+      // makes sense elsewhere
+      if (!(isFiberMounted(fiber) && fiber.tag === ClassComponent)) {
+        {
+          throw Error( "Expected subtree parent to be a mounted class component. This error is likely caused by a bug in React. Please file an issue." );
+        }
+      }
+
+      var node = fiber;
+
+      do {
+        switch (node.tag) {
+          case HostRoot:
+            return node.stateNode.context;
+
+          case ClassComponent:
+            {
+              var Component = node.type;
+
+              if (isContextProvider(Component)) {
+                return node.stateNode.__reactInternalMemoizedMergedChildContext;
+              }
+
+              break;
+            }
+        }
+
+        node = node.return;
+      } while (node !== null);
+
+      {
+        {
+          throw Error( "Found unexpected detached subtree parent. This error is likely caused by a bug in React. Please file an issue." );
+        }
+      }
+    }
+  }
+
+  var LegacyRoot = 0;
+  var BlockingRoot = 1;
+  var ConcurrentRoot = 2;
+
+  var rendererID = null;
+  var injectedHook = null;
+  var hasLoggedError = false;
+  var isDevToolsPresent = typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ !== 'undefined';
+  function injectInternals(internals) {
+    if (typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined') {
+      // No DevTools
+      return false;
+    }
+
+    var hook = __REACT_DEVTOOLS_GLOBAL_HOOK__;
+
+    if (hook.isDisabled) {
+      // This isn't a real property on the hook, but it can be set to opt out
+      // of DevTools integration and associated warnings and logs.
+      // https://github.com/facebook/react/issues/3877
+      return true;
+    }
+
+    if (!hook.supportsFiber) {
+      {
+        error('The installed version of React DevTools is too old and will not work ' + 'with the current version of React. Please update React DevTools. ' + 'https://reactjs.org/link/react-devtools');
+      } // DevTools exists, even though it doesn't support Fiber.
+
+
+      return true;
+    }
+
+    try {
+      rendererID = hook.inject(internals); // We have successfully injected, so now it is safe to set up hooks.
+
+      injectedHook = hook;
+    } catch (err) {
+      // Catch all errors because it is unsafe to throw during initialization.
+      {
+        error('React instrumentation encountered an error: %s.', err);
+      }
+    } // DevTools exists
+
+
+    return true;
+  }
+  function onScheduleRoot(root, children) {
+    {
+      if (injectedHook && typeof injectedHook.onScheduleFiberRoot === 'function') {
+        try {
+          injectedHook.onScheduleFiberRoot(rendererID, root, children);
+        } catch (err) {
+          if ( !hasLoggedError) {
+            hasLoggedError = true;
+
+            error('React instrumentation encountered an error: %s', err);
+          }
+        }
+      }
+    }
+  }
+  function onCommitRoot(root, priorityLevel) {
+    if (injectedHook && typeof injectedHook.onCommitFiberRoot === 'function') {
+      try {
+        var didError = (root.current.flags & DidCapture) === DidCapture;
+
+        if (enableProfilerTimer) {
+          injectedHook.onCommitFiberRoot(rendererID, root, priorityLevel, didError);
+        } else {
+          injectedHook.onCommitFiberRoot(rendererID, root, undefined, didError);
+        }
+      } catch (err) {
+        {
+          if (!hasLoggedError) {
+            hasLoggedError = true;
+
+            error('React instrumentation encountered an error: %s', err);
+          }
+        }
+      }
+    }
+  }
+  function onCommitUnmount(fiber) {
+    if (injectedHook && typeof injectedHook.onCommitFiberUnmount === 'function') {
+      try {
+        injectedHook.onCommitFiberUnmount(rendererID, fiber);
+      } catch (err) {
+        {
+          if (!hasLoggedError) {
+            hasLoggedError = true;
+
+            error('React instrumentation encountered an error: %s', err);
+          }
+        }
+      }
+    }
+  }
+
+  var Scheduler_runWithPriority = unstable_runWithPriority,
+      Scheduler_scheduleCallback = unstable_scheduleCallback,
+      Scheduler_cancelCallback = unstable_cancelCallback,
+      Scheduler_shouldYield = unstable_shouldYield,
+      Scheduler_requestPaint = unstable_requestPaint,
+      Scheduler_now$1 = unstable_now,
+      Scheduler_getCurrentPriorityLevel = unstable_getCurrentPriorityLevel,
+      Scheduler_ImmediatePriority = unstable_ImmediatePriority,
+      Scheduler_UserBlockingPriority = unstable_UserBlockingPriority,
+      Scheduler_NormalPriority = unstable_NormalPriority,
+      Scheduler_LowPriority = unstable_LowPriority,
+      Scheduler_IdlePriority = unstable_IdlePriority;
+
+  {
+    // Provide explicit error message when production+profiling bundle of e.g.
+    // react-dom is used with production (non-profiling) bundle of
+    // scheduler/tracing
+    if (!(__interactionsRef != null && __interactionsRef.current != null)) {
+      {
+        throw Error( "It is not supported to run the profiling version of a renderer (for example, `react-dom/profiling`) without also replacing the `scheduler/tracing` module with `scheduler/tracing-profiling`. Your bundler might have a setting for aliasing both modules. Learn more at https://reactjs.org/link/profiling" );
+      }
+    }
+  }
+
+  var fakeCallbackNode = {}; // Except for NoPriority, these correspond to Scheduler priorities. We use
+  // ascending numbers so we can compare them like numbers. They start at 90 to
+  // avoid clashing with Scheduler's priorities.
+
+  var ImmediatePriority$1 = 99;
+  var UserBlockingPriority$2 = 98;
+  var NormalPriority$1 = 97;
+  var LowPriority$1 = 96;
+  var IdlePriority$1 = 95; // NoPriority is the absence of priority. Also React-only.
+
+  var NoPriority$1 = 90;
+  var shouldYield = Scheduler_shouldYield;
+  var requestPaint = // Fall back gracefully if we're running an older version of Scheduler.
+  Scheduler_requestPaint !== undefined ? Scheduler_requestPaint : function () {};
+  var syncQueue = null;
+  var immediateQueueCallbackNode = null;
+  var isFlushingSyncQueue = false;
+  var initialTimeMs$1 = Scheduler_now$1(); // If the initial timestamp is reasonably small, use Scheduler's `now` directly.
+  // This will be the case for modern browsers that support `performance.now`. In
+  // older browsers, Scheduler falls back to `Date.now`, which returns a Unix
+  // timestamp. In that case, subtract the module initialization time to simulate
+  // the behavior of performance.now and keep our times small enough to fit
+  // within 32 bits.
+  // TODO: Consider lifting this into Scheduler.
+
+  var now = initialTimeMs$1 < 10000 ? Scheduler_now$1 : function () {
+    return Scheduler_now$1() - initialTimeMs$1;
+  };
+  function getCurrentPriorityLevel() {
+    switch (Scheduler_getCurrentPriorityLevel()) {
+      case Scheduler_ImmediatePriority:
+        return ImmediatePriority$1;
+
+      case Scheduler_UserBlockingPriority:
+        return UserBlockingPriority$2;
+
+      case Scheduler_NormalPriority:
+        return NormalPriority$1;
+
+      case Scheduler_LowPriority:
+        return LowPriority$1;
+
+      case Scheduler_IdlePriority:
+        return IdlePriority$1;
+
+      default:
+        {
+          {
+            throw Error( "Unknown priority level." );
+          }
+        }
+
+    }
+  }
+
+  function reactPriorityToSchedulerPriority(reactPriorityLevel) {
+    switch (reactPriorityLevel) {
+      case ImmediatePriority$1:
+        return Scheduler_ImmediatePriority;
+
+      case UserBlockingPriority$2:
+        return Scheduler_UserBlockingPriority;
+
+      case NormalPriority$1:
+        return Scheduler_NormalPriority;
+
+      case LowPriority$1:
+        return Scheduler_LowPriority;
+
+      case IdlePriority$1:
+        return Scheduler_IdlePriority;
+
+      default:
+        {
+          {
+            throw Error( "Unknown priority level." );
+          }
+        }
+
+    }
+  }
+
+  function runWithPriority$1(reactPriorityLevel, fn) {
+    var priorityLevel = reactPriorityToSchedulerPriority(reactPriorityLevel);
+    return Scheduler_runWithPriority(priorityLevel, fn);
+  }
+  function scheduleCallback(reactPriorityLevel, callback, options) {
+    var priorityLevel = reactPriorityToSchedulerPriority(reactPriorityLevel);
+    return Scheduler_scheduleCallback(priorityLevel, callback, options);
+  }
+  function scheduleSyncCallback(callback) {
+    // Push this callback into an internal queue. We'll flush these either in
+    // the next tick, or earlier if something calls `flushSyncCallbackQueue`.
+    if (syncQueue === null) {
+      syncQueue = [callback]; // Flush the queue in the next tick, at the earliest.
+
+      immediateQueueCallbackNode = Scheduler_scheduleCallback(Scheduler_ImmediatePriority, flushSyncCallbackQueueImpl);
+    } else {
+      // Push onto existing queue. Don't need to schedule a callback because
+      // we already scheduled one when we created the queue.
+      syncQueue.push(callback);
+    }
+
+    return fakeCallbackNode;
+  }
+  function cancelCallback(callbackNode) {
+    if (callbackNode !== fakeCallbackNode) {
+      Scheduler_cancelCallback(callbackNode);
+    }
+  }
+  function flushSyncCallbackQueue() {
+    if (immediateQueueCallbackNode !== null) {
+      var node = immediateQueueCallbackNode;
+      immediateQueueCallbackNode = null;
+      Scheduler_cancelCallback(node);
+    }
+
+    flushSyncCallbackQueueImpl();
+  }
+
+  function flushSyncCallbackQueueImpl() {
+    if (!isFlushingSyncQueue && syncQueue !== null) {
+      // Prevent re-entrancy.
+      isFlushingSyncQueue = true;
+      var i = 0;
+
+      {
+        try {
+          var _isSync2 = true;
+          var _queue = syncQueue;
+          runWithPriority$1(ImmediatePriority$1, function () {
+            for (; i < _queue.length; i++) {
+              var callback = _queue[i];
+
+              do {
+                callback = callback(_isSync2);
+              } while (callback !== null);
+            }
+          });
+          syncQueue = null;
+        } catch (error) {
+          // If something throws, leave the remaining callbacks on the queue.
+          if (syncQueue !== null) {
+            syncQueue = syncQueue.slice(i + 1);
+          } // Resume flushing in the next tick
+
+
+          Scheduler_scheduleCallback(Scheduler_ImmediatePriority, flushSyncCallbackQueue);
+          throw error;
+        } finally {
+          isFlushingSyncQueue = false;
+        }
+      }
+    }
+  }
+
+  // TODO: this is special because it gets imported during build.
+  var ReactVersion = '17.0.2';
+
+  var NoMode = 0;
+  var StrictMode = 1; // TODO: Remove BlockingMode and ConcurrentMode by reading from the root
+  // tag instead
+
+  var BlockingMode = 2;
+  var ConcurrentMode = 4;
+  var ProfileMode = 8;
+  var DebugTracingMode = 16;
+
+  var ReactCurrentBatchConfig = ReactSharedInternals.ReactCurrentBatchConfig;
+  var NoTransition = 0;
+  function requestCurrentTransition() {
+    return ReactCurrentBatchConfig.transition;
+  }
+
+  var ReactStrictModeWarnings = {
+    recordUnsafeLifecycleWarnings: function (fiber, instance) {},
+    flushPendingUnsafeLifecycleWarnings: function () {},
+    recordLegacyContextWarning: function (fiber, instance) {},
+    flushLegacyContextWarning: function () {},
+    discardPendingWarnings: function () {}
+  };
+
+  {
+    var findStrictRoot = function (fiber) {
+      var maybeStrictRoot = null;
+      var node = fiber;
+
+      while (node !== null) {
+        if (node.mode & StrictMode) {
+          maybeStrictRoot = node;
+        }
+
+        node = node.return;
+      }
+
+      return maybeStrictRoot;
+    };
+
+    var setToSortedString = function (set) {
+      var array = [];
+      set.forEach(function (value) {
+        array.push(value);
+      });
+      return array.sort().join(', ');
+    };
+
+    var pendingComponentWillMountWarnings = [];
+    var pendingUNSAFE_ComponentWillMountWarnings = [];
+    var pendingComponentWillReceivePropsWarnings = [];
+    var pendingUNSAFE_ComponentWillReceivePropsWarnings = [];
+    var pendingComponentWillUpdateWarnings = [];
+    var pendingUNSAFE_ComponentWillUpdateWarnings = []; // Tracks components we have already warned about.
+
+    var didWarnAboutUnsafeLifecycles = new Set();
+
+    ReactStrictModeWarnings.recordUnsafeLifecycleWarnings = function (fiber, instance) {
+      // Dedup strategy: Warn once per component.
+      if (didWarnAboutUnsafeLifecycles.has(fiber.type)) {
+        return;
+      }
+
+      if (typeof instance.componentWillMount === 'function' && // Don't warn about react-lifecycles-compat polyfilled components.
+      instance.componentWillMount.__suppressDeprecationWarning !== true) {
+        pendingComponentWillMountWarnings.push(fiber);
+      }
+
+      if (fiber.mode & StrictMode && typeof instance.UNSAFE_componentWillMount === 'function') {
+        pendingUNSAFE_ComponentWillMountWarnings.push(fiber);
+      }
+
+      if (typeof instance.componentWillReceiveProps === 'function' && instance.componentWillReceiveProps.__suppressDeprecationWarning !== true) {
+        pendingComponentWillReceivePropsWarnings.push(fiber);
+      }
+
+      if (fiber.mode & StrictMode && typeof instance.UNSAFE_componentWillReceiveProps === 'function') {
+        pendingUNSAFE_ComponentWillReceivePropsWarnings.push(fiber);
+      }
+
+      if (typeof instance.componentWillUpdate === 'function' && instance.componentWillUpdate.__suppressDeprecationWarning !== true) {
+        pendingComponentWillUpdateWarnings.push(fiber);
+      }
+
+      if (fiber.mode & StrictMode && typeof instance.UNSAFE_componentWillUpdate === 'function') {
+        pendingUNSAFE_ComponentWillUpdateWarnings.push(fiber);
+      }
+    };
+
+    ReactStrictModeWarnings.flushPendingUnsafeLifecycleWarnings = function () {
+      // We do an initial pass to gather component names
+      var componentWillMountUniqueNames = new Set();
+
+      if (pendingComponentWillMountWarnings.length > 0) {
+        pendingComponentWillMountWarnings.forEach(function (fiber) {
+          componentWillMountUniqueNames.add(getComponentName(fiber.type) || 'Component');
+          didWarnAboutUnsafeLifecycles.add(fiber.type);
+        });
+        pendingComponentWillMountWarnings = [];
+      }
+
+      var UNSAFE_componentWillMountUniqueNames = new Set();
+
+      if (pendingUNSAFE_ComponentWillMountWarnings.length > 0) {
+        pendingUNSAFE_ComponentWillMountWarnings.forEach(function (fiber) {
+          UNSAFE_componentWillMountUniqueNames.add(getComponentName(fiber.type) || 'Component');
+          didWarnAboutUnsafeLifecycles.add(fiber.type);
+        });
+        pendingUNSAFE_ComponentWillMountWarnings = [];
+      }
+
+      var componentWillReceivePropsUniqueNames = new Set();
+
+      if (pendingComponentWillReceivePropsWarnings.length > 0) {
+        pendingComponentWillReceivePropsWarnings.forEach(function (fiber) {
+          componentWillReceivePropsUniqueNames.add(getComponentName(fiber.type) || 'Component');
+          didWarnAboutUnsafeLifecycles.add(fiber.type);
+        });
+        pendingComponentWillReceivePropsWarnings = [];
+      }
+
+      var UNSAFE_componentWillReceivePropsUniqueNames = new Set();
+
+      if (pendingUNSAFE_ComponentWillReceivePropsWarnings.length > 0) {
+        pendingUNSAFE_ComponentWillReceivePropsWarnings.forEach(function (fiber) {
+          UNSAFE_componentWillReceivePropsUniqueNames.add(getComponentName(fiber.type) || 'Component');
+          didWarnAboutUnsafeLifecycles.add(fiber.type);
+        });
+        pendingUNSAFE_ComponentWillReceivePropsWarnings = [];
+      }
+
+      var componentWillUpdateUniqueNames = new Set();
+
+      if (pendingComponentWillUpdateWarnings.length > 0) {
+        pendingComponentWillUpdateWarnings.forEach(function (fiber) {
+          componentWillUpdateUniqueNames.add(getComponentName(fiber.type) || 'Component');
+          didWarnAboutUnsafeLifecycles.add(fiber.type);
+        });
+        pendingComponentWillUpdateWarnings = [];
+      }
+
+      var UNSAFE_componentWillUpdateUniqueNames = new Set();
+
+      if (pendingUNSAFE_ComponentWillUpdateWarnings.length > 0) {
+        pendingUNSAFE_ComponentWillUpdateWarnings.forEach(function (fiber) {
+          UNSAFE_componentWillUpdateUniqueNames.add(getComponentName(fiber.type) || 'Component');
+          didWarnAboutUnsafeLifecycles.add(fiber.type);
+        });
+        pendingUNSAFE_ComponentWillUpdateWarnings = [];
+      } // Finally, we flush all the warnings
+      // UNSAFE_ ones before the deprecated ones, since they'll be 'louder'
+
+
+      if (UNSAFE_componentWillMountUniqueNames.size > 0) {
+        var sortedNames = setToSortedString(UNSAFE_componentWillMountUniqueNames);
+
+        error('Using UNSAFE_componentWillMount in strict mode is not recommended and may indicate bugs in your code. ' + 'See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n' + '* Move code with side effects to componentDidMount, and set initial state in the constructor.\n' + '\nPlease update the following components: %s', sortedNames);
+      }
+
+      if (UNSAFE_componentWillReceivePropsUniqueNames.size > 0) {
+        var _sortedNames = setToSortedString(UNSAFE_componentWillReceivePropsUniqueNames);
+
+        error('Using UNSAFE_componentWillReceiveProps in strict mode is not recommended ' + 'and may indicate bugs in your code. ' + 'See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n' + '* Move data fetching code or side effects to componentDidUpdate.\n' + "* If you're updating state whenever props change, " + 'refactor your code to use memoization techniques or move it to ' + 'static getDerivedStateFromProps. Learn more at: https://reactjs.org/link/derived-state\n' + '\nPlease update the following components: %s', _sortedNames);
+      }
+
+      if (UNSAFE_componentWillUpdateUniqueNames.size > 0) {
+        var _sortedNames2 = setToSortedString(UNSAFE_componentWillUpdateUniqueNames);
+
+        error('Using UNSAFE_componentWillUpdate in strict mode is not recommended ' + 'and may indicate bugs in your code. ' + 'See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n' + '* Move data fetching code or side effects to componentDidUpdate.\n' + '\nPlease update the following components: %s', _sortedNames2);
+      }
+
+      if (componentWillMountUniqueNames.size > 0) {
+        var _sortedNames3 = setToSortedString(componentWillMountUniqueNames);
+
+        warn('componentWillMount has been renamed, and is not recommended for use. ' + 'See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n' + '* Move code with side effects to componentDidMount, and set initial state in the constructor.\n' + '* Rename componentWillMount to UNSAFE_componentWillMount to suppress ' + 'this warning in non-strict mode. In React 18.x, only the UNSAFE_ name will work. ' + 'To rename all deprecated lifecycles to their new names, you can run ' + '`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n' + '\nPlease update the following components: %s', _sortedNames3);
+      }
+
+      if (componentWillReceivePropsUniqueNames.size > 0) {
+        var _sortedNames4 = setToSortedString(componentWillReceivePropsUniqueNames);
+
+        warn('componentWillReceiveProps has been renamed, and is not recommended for use. ' + 'See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n' + '* Move data fetching code or side effects to componentDidUpdate.\n' + "* If you're updating state whenever props change, refactor your " + 'code to use memoization techniques or move it to ' + 'static getDerivedStateFromProps. Learn more at: https://reactjs.org/link/derived-state\n' + '* Rename componentWillReceiveProps to UNSAFE_componentWillReceiveProps to suppress ' + 'this warning in non-strict mode. In React 18.x, only the UNSAFE_ name will work. ' + 'To rename all deprecated lifecycles to their new names, you can run ' + '`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n' + '\nPlease update the following components: %s', _sortedNames4);
+      }
+
+      if (componentWillUpdateUniqueNames.size > 0) {
+        var _sortedNames5 = setToSortedString(componentWillUpdateUniqueNames);
+
+        warn('componentWillUpdate has been renamed, and is not recommended for use. ' + 'See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n' + '* Move data fetching code or side effects to componentDidUpdate.\n' + '* Rename componentWillUpdate to UNSAFE_componentWillUpdate to suppress ' + 'this warning in non-strict mode. In React 18.x, only the UNSAFE_ name will work. ' + 'To rename all deprecated lifecycles to their new names, you can run ' + '`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n' + '\nPlease update the following components: %s', _sortedNames5);
+      }
+    };
+
+    var pendingLegacyContextWarning = new Map(); // Tracks components we have already warned about.
+
+    var didWarnAboutLegacyContext = new Set();
+
+    ReactStrictModeWarnings.recordLegacyContextWarning = function (fiber, instance) {
+      var strictRoot = findStrictRoot(fiber);
+
+      if (strictRoot === null) {
+        error('Expected to find a StrictMode component in a strict mode tree. ' + 'This error is likely caused by a bug in React. Please file an issue.');
+
+        return;
+      } // Dedup strategy: Warn once per component.
+
+
+      if (didWarnAboutLegacyContext.has(fiber.type)) {
+        return;
+      }
+
+      var warningsForRoot = pendingLegacyContextWarning.get(strictRoot);
+
+      if (fiber.type.contextTypes != null || fiber.type.childContextTypes != null || instance !== null && typeof instance.getChildContext === 'function') {
+        if (warningsForRoot === undefined) {
+          warningsForRoot = [];
+          pendingLegacyContextWarning.set(strictRoot, warningsForRoot);
+        }
+
+        warningsForRoot.push(fiber);
+      }
+    };
+
+    ReactStrictModeWarnings.flushLegacyContextWarning = function () {
+      pendingLegacyContextWarning.forEach(function (fiberArray, strictRoot) {
+        if (fiberArray.length === 0) {
+          return;
+        }
+
+        var firstFiber = fiberArray[0];
+        var uniqueNames = new Set();
+        fiberArray.forEach(function (fiber) {
+          uniqueNames.add(getComponentName(fiber.type) || 'Component');
+          didWarnAboutLegacyContext.add(fiber.type);
+        });
+        var sortedNames = setToSortedString(uniqueNames);
+
+        try {
+          setCurrentFiber(firstFiber);
+
+          error('Legacy context API has been detected within a strict-mode tree.' + '\n\nThe old API will be supported in all 16.x releases, but applications ' + 'using it should migrate to the new version.' + '\n\nPlease update the following components: %s' + '\n\nLearn more about this warning here: https://reactjs.org/link/legacy-context', sortedNames);
+        } finally {
+          resetCurrentFiber();
+        }
+      });
+    };
+
+    ReactStrictModeWarnings.discardPendingWarnings = function () {
+      pendingComponentWillMountWarnings = [];
+      pendingUNSAFE_ComponentWillMountWarnings = [];
+      pendingComponentWillReceivePropsWarnings = [];
+      pendingUNSAFE_ComponentWillReceivePropsWarnings = [];
+      pendingComponentWillUpdateWarnings = [];
+      pendingUNSAFE_ComponentWillUpdateWarnings = [];
+      pendingLegacyContextWarning = new Map();
+    };
+  }
+
+  function resolveDefaultProps(Component, baseProps) {
+    if (Component && Component.defaultProps) {
+      // Resolve default props. Taken from ReactElement
+      var props = _assign({}, baseProps);
+
+      var defaultProps = Component.defaultProps;
+
+      for (var propName in defaultProps) {
+        if (props[propName] === undefined) {
+          props[propName] = defaultProps[propName];
+        }
+      }
+
+      return props;
+    }
+
+    return baseProps;
+  }
+
+  // Max 31 bit integer. The max integer size in V8 for 32-bit systems.
+  // Math.pow(2, 30) - 1
+  // 0b111111111111111111111111111111
+  var MAX_SIGNED_31_BIT_INT = 1073741823;
+
+  var valueCursor = createCursor(null);
+  var rendererSigil;
+
+  {
+    // Use this to detect multiple renderers using the same context
+    rendererSigil = {};
+  }
+
+  var currentlyRenderingFiber = null;
+  var lastContextDependency = null;
+  var lastContextWithAllBitsObserved = null;
+  var isDisallowedContextReadInDEV = false;
+  function resetContextDependencies() {
+    // This is called right before React yields execution, to ensure `readContext`
+    // cannot be called outside the render phase.
+    currentlyRenderingFiber = null;
+    lastContextDependency = null;
+    lastContextWithAllBitsObserved = null;
+
+    {
+      isDisallowedContextReadInDEV = false;
+    }
+  }
+  function enterDisallowedContextReadInDEV() {
+    {
+      isDisallowedContextReadInDEV = true;
+    }
+  }
+  function exitDisallowedContextReadInDEV() {
+    {
+      isDisallowedContextReadInDEV = false;
+    }
+  }
+  function pushProvider(providerFiber, nextValue) {
+    var context = providerFiber.type._context;
+
+    {
+      push(valueCursor, context._currentValue, providerFiber);
+      context._currentValue = nextValue;
+
+      {
+        if (context._currentRenderer !== undefined && context._currentRenderer !== null && context._currentRenderer !== rendererSigil) {
+          error('Detected multiple renderers concurrently rendering the ' + 'same context provider. This is currently unsupported.');
+        }
+
+        context._currentRenderer = rendererSigil;
+      }
+    }
+  }
+  function popProvider(providerFiber) {
+    var currentValue = valueCursor.current;
+    pop(valueCursor, providerFiber);
+    var context = providerFiber.type._context;
+
+    {
+      context._currentValue = currentValue;
+    }
+  }
+  function calculateChangedBits(context, newValue, oldValue) {
+    if (objectIs(oldValue, newValue)) {
+      // No change
+      return 0;
+    } else {
+      var changedBits = typeof context._calculateChangedBits === 'function' ? context._calculateChangedBits(oldValue, newValue) : MAX_SIGNED_31_BIT_INT;
+
+      {
+        if ((changedBits & MAX_SIGNED_31_BIT_INT) !== changedBits) {
+          error('calculateChangedBits: Expected the return value to be a ' + '31-bit integer. Instead received: %s', changedBits);
+        }
+      }
+
+      return changedBits | 0;
+    }
+  }
+  function scheduleWorkOnParentPath(parent, renderLanes) {
+    // Update the child lanes of all the ancestors, including the alternates.
+    var node = parent;
+
+    while (node !== null) {
+      var alternate = node.alternate;
+
+      if (!isSubsetOfLanes(node.childLanes, renderLanes)) {
+        node.childLanes = mergeLanes(node.childLanes, renderLanes);
+
+        if (alternate !== null) {
+          alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes);
+        }
+      } else if (alternate !== null && !isSubsetOfLanes(alternate.childLanes, renderLanes)) {
+        alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes);
+      } else {
+        // Neither alternate was updated, which means the rest of the
+        // ancestor path already has sufficient priority.
+        break;
+      }
+
+      node = node.return;
+    }
+  }
+  function propagateContextChange(workInProgress, context, changedBits, renderLanes) {
+    var fiber = workInProgress.child;
+
+    if (fiber !== null) {
+      // Set the return pointer of the child to the work-in-progress fiber.
+      fiber.return = workInProgress;
+    }
+
+    while (fiber !== null) {
+      var nextFiber = void 0; // Visit this fiber.
+
+      var list = fiber.dependencies;
+
+      if (list !== null) {
+        nextFiber = fiber.child;
+        var dependency = list.firstContext;
+
+        while (dependency !== null) {
+          // Check if the context matches.
+          if (dependency.context === context && (dependency.observedBits & changedBits) !== 0) {
+            // Match! Schedule an update on this fiber.
+            if (fiber.tag === ClassComponent) {
+              // Schedule a force update on the work-in-progress.
+              var update = createUpdate(NoTimestamp, pickArbitraryLane(renderLanes));
+              update.tag = ForceUpdate; // TODO: Because we don't have a work-in-progress, this will add the
+              // update to the current fiber, too, which means it will persist even if
+              // this render is thrown away. Since it's a race condition, not sure it's
+              // worth fixing.
+
+              enqueueUpdate(fiber, update);
+            }
+
+            fiber.lanes = mergeLanes(fiber.lanes, renderLanes);
+            var alternate = fiber.alternate;
+
+            if (alternate !== null) {
+              alternate.lanes = mergeLanes(alternate.lanes, renderLanes);
+            }
+
+            scheduleWorkOnParentPath(fiber.return, renderLanes); // Mark the updated lanes on the list, too.
+
+            list.lanes = mergeLanes(list.lanes, renderLanes); // Since we already found a match, we can stop traversing the
+            // dependency list.
+
+            break;
+          }
+
+          dependency = dependency.next;
+        }
+      } else if (fiber.tag === ContextProvider) {
+        // Don't scan deeper if this is a matching provider
+        nextFiber = fiber.type === workInProgress.type ? null : fiber.child;
+      } else {
+        // Traverse down.
+        nextFiber = fiber.child;
+      }
+
+      if (nextFiber !== null) {
+        // Set the return pointer of the child to the work-in-progress fiber.
+        nextFiber.return = fiber;
+      } else {
+        // No child. Traverse to next sibling.
+        nextFiber = fiber;
+
+        while (nextFiber !== null) {
+          if (nextFiber === workInProgress) {
+            // We're back to the root of this subtree. Exit.
+            nextFiber = null;
+            break;
+          }
+
+          var sibling = nextFiber.sibling;
+
+          if (sibling !== null) {
+            // Set the return pointer of the sibling to the work-in-progress fiber.
+            sibling.return = nextFiber.return;
+            nextFiber = sibling;
+            break;
+          } // No more siblings. Traverse up.
+
+
+          nextFiber = nextFiber.return;
+        }
+      }
+
+      fiber = nextFiber;
+    }
+  }
+  function prepareToReadContext(workInProgress, renderLanes) {
+    currentlyRenderingFiber = workInProgress;
+    lastContextDependency = null;
+    lastContextWithAllBitsObserved = null;
+    var dependencies = workInProgress.dependencies;
+
+    if (dependencies !== null) {
+      var firstContext = dependencies.firstContext;
+
+      if (firstContext !== null) {
+        if (includesSomeLane(dependencies.lanes, renderLanes)) {
+          // Context list has a pending update. Mark that this fiber performed work.
+          markWorkInProgressReceivedUpdate();
+        } // Reset the work-in-progress list
+
+
+        dependencies.firstContext = null;
+      }
+    }
+  }
+  function readContext(context, observedBits) {
+    {
+      // This warning would fire if you read context inside a Hook like useMemo.
+      // Unlike the class check below, it's not enforced in production for perf.
+      if (isDisallowedContextReadInDEV) {
+        error('Context can only be read while React is rendering. ' + 'In classes, you can read it in the render method or getDerivedStateFromProps. ' + 'In function components, you can read it directly in the function body, but not ' + 'inside Hooks like useReducer() or useMemo().');
+      }
+    }
+
+    if (lastContextWithAllBitsObserved === context) ; else if (observedBits === false || observedBits === 0) ; else {
+      var resolvedObservedBits; // Avoid deopting on observable arguments or heterogeneous types.
+
+      if (typeof observedBits !== 'number' || observedBits === MAX_SIGNED_31_BIT_INT) {
+        // Observe all updates.
+        lastContextWithAllBitsObserved = context;
+        resolvedObservedBits = MAX_SIGNED_31_BIT_INT;
+      } else {
+        resolvedObservedBits = observedBits;
+      }
+
+      var contextItem = {
+        context: context,
+        observedBits: resolvedObservedBits,
+        next: null
+      };
+
+      if (lastContextDependency === null) {
+        if (!(currentlyRenderingFiber !== null)) {
+          {
+            throw Error( "Context can only be read while React is rendering. In classes, you can read it in the render method or getDerivedStateFromProps. In function components, you can read it directly in the function body, but not inside Hooks like useReducer() or useMemo()." );
+          }
+        } // This is the first dependency for this component. Create a new list.
+
+
+        lastContextDependency = contextItem;
+        currentlyRenderingFiber.dependencies = {
+          lanes: NoLanes,
+          firstContext: contextItem,
+          responders: null
+        };
+      } else {
+        // Append a new context item.
+        lastContextDependency = lastContextDependency.next = contextItem;
+      }
+    }
+
+    return  context._currentValue ;
+  }
+
+  var UpdateState = 0;
+  var ReplaceState = 1;
+  var ForceUpdate = 2;
+  var CaptureUpdate = 3; // Global state that is reset at the beginning of calling `processUpdateQueue`.
+  // It should only be read right after calling `processUpdateQueue`, via
+  // `checkHasForceUpdateAfterProcessing`.
+
+  var hasForceUpdate = false;
+  var didWarnUpdateInsideUpdate;
+  var currentlyProcessingQueue;
+
+  {
+    didWarnUpdateInsideUpdate = false;
+    currentlyProcessingQueue = null;
+  }
+
+  function initializeUpdateQueue(fiber) {
+    var queue = {
+      baseState: fiber.memoizedState,
+      firstBaseUpdate: null,
+      lastBaseUpdate: null,
+      shared: {
+        pending: null
+      },
+      effects: null
+    };
+    fiber.updateQueue = queue;
+  }
+  function cloneUpdateQueue(current, workInProgress) {
+    // Clone the update queue from current. Unless it's already a clone.
+    var queue = workInProgress.updateQueue;
+    var currentQueue = current.updateQueue;
+
+    if (queue === currentQueue) {
+      var clone = {
+        baseState: currentQueue.baseState,
+        firstBaseUpdate: currentQueue.firstBaseUpdate,
+        lastBaseUpdate: currentQueue.lastBaseUpdate,
+        shared: currentQueue.shared,
+        effects: currentQueue.effects
+      };
+      workInProgress.updateQueue = clone;
+    }
+  }
+  function createUpdate(eventTime, lane) {
+    var update = {
+      eventTime: eventTime,
+      lane: lane,
+      tag: UpdateState,
+      payload: null,
+      callback: null,
+      next: null
+    };
+    return update;
+  }
+  function enqueueUpdate(fiber, update) {
+    var updateQueue = fiber.updateQueue;
+
+    if (updateQueue === null) {
+      // Only occurs if the fiber has been unmounted.
+      return;
+    }
+
+    var sharedQueue = updateQueue.shared;
+    var pending = sharedQueue.pending;
+
+    if (pending === null) {
+      // This is the first update. Create a circular list.
+      update.next = update;
+    } else {
+      update.next = pending.next;
+      pending.next = update;
+    }
+
+    sharedQueue.pending = update;
+
+    {
+      if (currentlyProcessingQueue === sharedQueue && !didWarnUpdateInsideUpdate) {
+        error('An update (setState, replaceState, or forceUpdate) was scheduled ' + 'from inside an update function. Update functions should be pure, ' + 'with zero side-effects. Consider using componentDidUpdate or a ' + 'callback.');
+
+        didWarnUpdateInsideUpdate = true;
+      }
+    }
+  }
+  function enqueueCapturedUpdate(workInProgress, capturedUpdate) {
+    // Captured updates are updates that are thrown by a child during the render
+    // phase. They should be discarded if the render is aborted. Therefore,
+    // we should only put them on the work-in-progress queue, not the current one.
+    var queue = workInProgress.updateQueue; // Check if the work-in-progress queue is a clone.
+
+    var current = workInProgress.alternate;
+
+    if (current !== null) {
+      var currentQueue = current.updateQueue;
+
+      if (queue === currentQueue) {
+        // The work-in-progress queue is the same as current. This happens when
+        // we bail out on a parent fiber that then captures an error thrown by
+        // a child. Since we want to append the update only to the work-in
+        // -progress queue, we need to clone the updates. We usually clone during
+        // processUpdateQueue, but that didn't happen in this case because we
+        // skipped over the parent when we bailed out.
+        var newFirst = null;
+        var newLast = null;
+        var firstBaseUpdate = queue.firstBaseUpdate;
+
+        if (firstBaseUpdate !== null) {
+          // Loop through the updates and clone them.
+          var update = firstBaseUpdate;
+
+          do {
+            var clone = {
+              eventTime: update.eventTime,
+              lane: update.lane,
+              tag: update.tag,
+              payload: update.payload,
+              callback: update.callback,
+              next: null
+            };
+
+            if (newLast === null) {
+              newFirst = newLast = clone;
+            } else {
+              newLast.next = clone;
+              newLast = clone;
+            }
+
+            update = update.next;
+          } while (update !== null); // Append the captured update the end of the cloned list.
+
+
+          if (newLast === null) {
+            newFirst = newLast = capturedUpdate;
+          } else {
+            newLast.next = capturedUpdate;
+            newLast = capturedUpdate;
+          }
+        } else {
+          // There are no base updates.
+          newFirst = newLast = capturedUpdate;
+        }
+
+        queue = {
+          baseState: currentQueue.baseState,
+          firstBaseUpdate: newFirst,
+          lastBaseUpdate: newLast,
+          shared: currentQueue.shared,
+          effects: currentQueue.effects
+        };
+        workInProgress.updateQueue = queue;
+        return;
+      }
+    } // Append the update to the end of the list.
+
+
+    var lastBaseUpdate = queue.lastBaseUpdate;
+
+    if (lastBaseUpdate === null) {
+      queue.firstBaseUpdate = capturedUpdate;
+    } else {
+      lastBaseUpdate.next = capturedUpdate;
+    }
+
+    queue.lastBaseUpdate = capturedUpdate;
+  }
+
+  function getStateFromUpdate(workInProgress, queue, update, prevState, nextProps, instance) {
+    switch (update.tag) {
+      case ReplaceState:
+        {
+          var payload = update.payload;
+
+          if (typeof payload === 'function') {
+            // Updater function
+            {
+              enterDisallowedContextReadInDEV();
+            }
+
+            var nextState = payload.call(instance, prevState, nextProps);
+
+            {
+              if ( workInProgress.mode & StrictMode) {
+                disableLogs();
+
+                try {
+                  payload.call(instance, prevState, nextProps);
+                } finally {
+                  reenableLogs();
+                }
+              }
+
+              exitDisallowedContextReadInDEV();
+            }
+
+            return nextState;
+          } // State object
+
+
+          return payload;
+        }
+
+      case CaptureUpdate:
+        {
+          workInProgress.flags = workInProgress.flags & ~ShouldCapture | DidCapture;
+        }
+      // Intentional fallthrough
+
+      case UpdateState:
+        {
+          var _payload = update.payload;
+          var partialState;
+
+          if (typeof _payload === 'function') {
+            // Updater function
+            {
+              enterDisallowedContextReadInDEV();
+            }
+
+            partialState = _payload.call(instance, prevState, nextProps);
+
+            {
+              if ( workInProgress.mode & StrictMode) {
+                disableLogs();
+
+                try {
+                  _payload.call(instance, prevState, nextProps);
+                } finally {
+                  reenableLogs();
+                }
+              }
+
+              exitDisallowedContextReadInDEV();
+            }
+          } else {
+            // Partial state object
+            partialState = _payload;
+          }
+
+          if (partialState === null || partialState === undefined) {
+            // Null and undefined are treated as no-ops.
+            return prevState;
+          } // Merge the partial state and the previous state.
+
+
+          return _assign({}, prevState, partialState);
+        }
+
+      case ForceUpdate:
+        {
+          hasForceUpdate = true;
+          return prevState;
+        }
+    }
+
+    return prevState;
+  }
+
+  function processUpdateQueue(workInProgress, props, instance, renderLanes) {
+    // This is always non-null on a ClassComponent or HostRoot
+    var queue = workInProgress.updateQueue;
+    hasForceUpdate = false;
+
+    {
+      currentlyProcessingQueue = queue.shared;
+    }
+
+    var firstBaseUpdate = queue.firstBaseUpdate;
+    var lastBaseUpdate = queue.lastBaseUpdate; // Check if there are pending updates. If so, transfer them to the base queue.
+
+    var pendingQueue = queue.shared.pending;
+
+    if (pendingQueue !== null) {
+      queue.shared.pending = null; // The pending queue is circular. Disconnect the pointer between first
+      // and last so that it's non-circular.
+
+      var lastPendingUpdate = pendingQueue;
+      var firstPendingUpdate = lastPendingUpdate.next;
+      lastPendingUpdate.next = null; // Append pending updates to base queue
+
+      if (lastBaseUpdate === null) {
+        firstBaseUpdate = firstPendingUpdate;
+      } else {
+        lastBaseUpdate.next = firstPendingUpdate;
+      }
+
+      lastBaseUpdate = lastPendingUpdate; // If there's a current queue, and it's different from the base queue, then
+      // we need to transfer the updates to that queue, too. Because the base
+      // queue is a singly-linked list with no cycles, we can append to both
+      // lists and take advantage of structural sharing.
+      // TODO: Pass `current` as argument
+
+      var current = workInProgress.alternate;
+
+      if (current !== null) {
+        // This is always non-null on a ClassComponent or HostRoot
+        var currentQueue = current.updateQueue;
+        var currentLastBaseUpdate = currentQueue.lastBaseUpdate;
+
+        if (currentLastBaseUpdate !== lastBaseUpdate) {
+          if (currentLastBaseUpdate === null) {
+            currentQueue.firstBaseUpdate = firstPendingUpdate;
+          } else {
+            currentLastBaseUpdate.next = firstPendingUpdate;
+          }
+
+          currentQueue.lastBaseUpdate = lastPendingUpdate;
+        }
+      }
+    } // These values may change as we process the queue.
+
+
+    if (firstBaseUpdate !== null) {
+      // Iterate through the list of updates to compute the result.
+      var newState = queue.baseState; // TODO: Don't need to accumulate this. Instead, we can remove renderLanes
+      // from the original lanes.
+
+      var newLanes = NoLanes;
+      var newBaseState = null;
+      var newFirstBaseUpdate = null;
+      var newLastBaseUpdate = null;
+      var update = firstBaseUpdate;
+
+      do {
+        var updateLane = update.lane;
+        var updateEventTime = update.eventTime;
+
+        if (!isSubsetOfLanes(renderLanes, updateLane)) {
+          // Priority is insufficient. Skip this update. If this is the first
+          // skipped update, the previous update/state is the new base
+          // update/state.
+          var clone = {
+            eventTime: updateEventTime,
+            lane: updateLane,
+            tag: update.tag,
+            payload: update.payload,
+            callback: update.callback,
+            next: null
+          };
+
+          if (newLastBaseUpdate === null) {
+            newFirstBaseUpdate = newLastBaseUpdate = clone;
+            newBaseState = newState;
+          } else {
+            newLastBaseUpdate = newLastBaseUpdate.next = clone;
+          } // Update the remaining priority in the queue.
+
+
+          newLanes = mergeLanes(newLanes, updateLane);
+        } else {
+          // This update does have sufficient priority.
+          if (newLastBaseUpdate !== null) {
+            var _clone = {
+              eventTime: updateEventTime,
+              // This update is going to be committed so we never want uncommit
+              // it. Using NoLane works because 0 is a subset of all bitmasks, so
+              // this will never be skipped by the check above.
+              lane: NoLane,
+              tag: update.tag,
+              payload: update.payload,
+              callback: update.callback,
+              next: null
+            };
+            newLastBaseUpdate = newLastBaseUpdate.next = _clone;
+          } // Process this update.
+
+
+          newState = getStateFromUpdate(workInProgress, queue, update, newState, props, instance);
+          var callback = update.callback;
+
+          if (callback !== null) {
+            workInProgress.flags |= Callback;
+            var effects = queue.effects;
+
+            if (effects === null) {
+              queue.effects = [update];
+            } else {
+              effects.push(update);
+            }
+          }
+        }
+
+        update = update.next;
+
+        if (update === null) {
+          pendingQueue = queue.shared.pending;
+
+          if (pendingQueue === null) {
+            break;
+          } else {
+            // An update was scheduled from inside a reducer. Add the new
+            // pending updates to the end of the list and keep processing.
+            var _lastPendingUpdate = pendingQueue; // Intentionally unsound. Pending updates form a circular list, but we
+            // unravel them when transferring them to the base queue.
+
+            var _firstPendingUpdate = _lastPendingUpdate.next;
+            _lastPendingUpdate.next = null;
+            update = _firstPendingUpdate;
+            queue.lastBaseUpdate = _lastPendingUpdate;
+            queue.shared.pending = null;
+          }
+        }
+      } while (true);
+
+      if (newLastBaseUpdate === null) {
+        newBaseState = newState;
+      }
+
+      queue.baseState = newBaseState;
+      queue.firstBaseUpdate = newFirstBaseUpdate;
+      queue.lastBaseUpdate = newLastBaseUpdate; // Set the remaining expiration time to be whatever is remaining in the queue.
+      // This should be fine because the only two other things that contribute to
+      // expiration time are props and context. We're already in the middle of the
+      // begin phase by the time we start processing the queue, so we've already
+      // dealt with the props. Context in components that specify
+      // shouldComponentUpdate is tricky; but we'll have to account for
+      // that regardless.
+
+      markSkippedUpdateLanes(newLanes);
+      workInProgress.lanes = newLanes;
+      workInProgress.memoizedState = newState;
+    }
+
+    {
+      currentlyProcessingQueue = null;
+    }
+  }
+
+  function callCallback(callback, context) {
+    if (!(typeof callback === 'function')) {
+      {
+        throw Error( "Invalid argument passed as callback. Expected a function. Instead received: " + callback );
+      }
+    }
+
+    callback.call(context);
+  }
+
+  function resetHasForceUpdateBeforeProcessing() {
+    hasForceUpdate = false;
+  }
+  function checkHasForceUpdateAfterProcessing() {
+    return hasForceUpdate;
+  }
+  function commitUpdateQueue(finishedWork, finishedQueue, instance) {
+    // Commit the effects
+    var effects = finishedQueue.effects;
+    finishedQueue.effects = null;
+
+    if (effects !== null) {
+      for (var i = 0; i < effects.length; i++) {
+        var effect = effects[i];
+        var callback = effect.callback;
+
+        if (callback !== null) {
+          effect.callback = null;
+          callCallback(callback, instance);
+        }
+      }
+    }
+  }
+
+  var fakeInternalInstance = {};
+  var isArray = Array.isArray; // React.Component uses a shared frozen object by default.
+  // We'll use it to determine whether we need to initialize legacy refs.
+
+  var emptyRefsObject = new React.Component().refs;
+  var didWarnAboutStateAssignmentForComponent;
+  var didWarnAboutUninitializedState;
+  var didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate;
+  var didWarnAboutLegacyLifecyclesAndDerivedState;
+  var didWarnAboutUndefinedDerivedState;
+  var warnOnUndefinedDerivedState;
+  var warnOnInvalidCallback;
+  var didWarnAboutDirectlyAssigningPropsToState;
+  var didWarnAboutContextTypeAndContextTypes;
+  var didWarnAboutInvalidateContextType;
+
+  {
+    didWarnAboutStateAssignmentForComponent = new Set();
+    didWarnAboutUninitializedState = new Set();
+    didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate = new Set();
+    didWarnAboutLegacyLifecyclesAndDerivedState = new Set();
+    didWarnAboutDirectlyAssigningPropsToState = new Set();
+    didWarnAboutUndefinedDerivedState = new Set();
+    didWarnAboutContextTypeAndContextTypes = new Set();
+    didWarnAboutInvalidateContextType = new Set();
+    var didWarnOnInvalidCallback = new Set();
+
+    warnOnInvalidCallback = function (callback, callerName) {
+      if (callback === null || typeof callback === 'function') {
+        return;
+      }
+
+      var key = callerName + '_' + callback;
+
+      if (!didWarnOnInvalidCallback.has(key)) {
+        didWarnOnInvalidCallback.add(key);
+
+        error('%s(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callerName, callback);
+      }
+    };
+
+    warnOnUndefinedDerivedState = function (type, partialState) {
+      if (partialState === undefined) {
+        var componentName = getComponentName(type) || 'Component';
+
+        if (!didWarnAboutUndefinedDerivedState.has(componentName)) {
+          didWarnAboutUndefinedDerivedState.add(componentName);
+
+          error('%s.getDerivedStateFromProps(): A valid state object (or null) must be returned. ' + 'You have returned undefined.', componentName);
+        }
+      }
+    }; // This is so gross but it's at least non-critical and can be removed if
+    // it causes problems. This is meant to give a nicer error message for
+    // ReactDOM15.unstable_renderSubtreeIntoContainer(reactDOM16Component,
+    // ...)) which otherwise throws a "_processChildContext is not a function"
+    // exception.
+
+
+    Object.defineProperty(fakeInternalInstance, '_processChildContext', {
+      enumerable: false,
+      value: function () {
+        {
+          {
+            throw Error( "_processChildContext is not available in React 16+. This likely means you have multiple copies of React and are attempting to nest a React 15 tree inside a React 16 tree using unstable_renderSubtreeIntoContainer, which isn't supported. Try to make sure you have only one copy of React (and ideally, switch to ReactDOM.createPortal)." );
+          }
+        }
+      }
+    });
+    Object.freeze(fakeInternalInstance);
+  }
+
+  function applyDerivedStateFromProps(workInProgress, ctor, getDerivedStateFromProps, nextProps) {
+    var prevState = workInProgress.memoizedState;
+
+    {
+      if ( workInProgress.mode & StrictMode) {
+        disableLogs();
+
+        try {
+          // Invoke the function an extra time to help detect side-effects.
+          getDerivedStateFromProps(nextProps, prevState);
+        } finally {
+          reenableLogs();
+        }
+      }
+    }
+
+    var partialState = getDerivedStateFromProps(nextProps, prevState);
+
+    {
+      warnOnUndefinedDerivedState(ctor, partialState);
+    } // Merge the partial state and the previous state.
+
+
+    var memoizedState = partialState === null || partialState === undefined ? prevState : _assign({}, prevState, partialState);
+    workInProgress.memoizedState = memoizedState; // Once the update queue is empty, persist the derived state onto the
+    // base state.
+
+    if (workInProgress.lanes === NoLanes) {
+      // Queue is always non-null for classes
+      var updateQueue = workInProgress.updateQueue;
+      updateQueue.baseState = memoizedState;
+    }
+  }
+  var classComponentUpdater = {
+    isMounted: isMounted,
+    enqueueSetState: function (inst, payload, callback) {
+      var fiber = get(inst);
+      var eventTime = requestEventTime();
+      var lane = requestUpdateLane(fiber);
+      var update = createUpdate(eventTime, lane);
+      update.payload = payload;
+
+      if (callback !== undefined && callback !== null) {
+        {
+          warnOnInvalidCallback(callback, 'setState');
+        }
+
+        update.callback = callback;
+      }
+
+      enqueueUpdate(fiber, update);
+      scheduleUpdateOnFiber(fiber, lane, eventTime);
+    },
+    enqueueReplaceState: function (inst, payload, callback) {
+      var fiber = get(inst);
+      var eventTime = requestEventTime();
+      var lane = requestUpdateLane(fiber);
+      var update = createUpdate(eventTime, lane);
+      update.tag = ReplaceState;
+      update.payload = payload;
+
+      if (callback !== undefined && callback !== null) {
+        {
+          warnOnInvalidCallback(callback, 'replaceState');
+        }
+
+        update.callback = callback;
+      }
+
+      enqueueUpdate(fiber, update);
+      scheduleUpdateOnFiber(fiber, lane, eventTime);
+    },
+    enqueueForceUpdate: function (inst, callback) {
+      var fiber = get(inst);
+      var eventTime = requestEventTime();
+      var lane = requestUpdateLane(fiber);
+      var update = createUpdate(eventTime, lane);
+      update.tag = ForceUpdate;
+
+      if (callback !== undefined && callback !== null) {
+        {
+          warnOnInvalidCallback(callback, 'forceUpdate');
+        }
+
+        update.callback = callback;
+      }
+
+      enqueueUpdate(fiber, update);
+      scheduleUpdateOnFiber(fiber, lane, eventTime);
+    }
+  };
+
+  function checkShouldComponentUpdate(workInProgress, ctor, oldProps, newProps, oldState, newState, nextContext) {
+    var instance = workInProgress.stateNode;
+
+    if (typeof instance.shouldComponentUpdate === 'function') {
+      {
+        if ( workInProgress.mode & StrictMode) {
+          disableLogs();
+
+          try {
+            // Invoke the function an extra time to help detect side-effects.
+            instance.shouldComponentUpdate(newProps, newState, nextContext);
+          } finally {
+            reenableLogs();
+          }
+        }
+      }
+
+      var shouldUpdate = instance.shouldComponentUpdate(newProps, newState, nextContext);
+
+      {
+        if (shouldUpdate === undefined) {
+          error('%s.shouldComponentUpdate(): Returned undefined instead of a ' + 'boolean value. Make sure to return true or false.', getComponentName(ctor) || 'Component');
+        }
+      }
+
+      return shouldUpdate;
+    }
+
+    if (ctor.prototype && ctor.prototype.isPureReactComponent) {
+      return !shallowEqual(oldProps, newProps) || !shallowEqual(oldState, newState);
+    }
+
+    return true;
+  }
+
+  function checkClassInstance(workInProgress, ctor, newProps) {
+    var instance = workInProgress.stateNode;
+
+    {
+      var name = getComponentName(ctor) || 'Component';
+      var renderPresent = instance.render;
+
+      if (!renderPresent) {
+        if (ctor.prototype && typeof ctor.prototype.render === 'function') {
+          error('%s(...): No `render` method found on the returned component ' + 'instance: did you accidentally return an object from the constructor?', name);
+        } else {
+          error('%s(...): No `render` method found on the returned component ' + 'instance: you may have forgotten to define `render`.', name);
+        }
+      }
+
+      if (instance.getInitialState && !instance.getInitialState.isReactClassApproved && !instance.state) {
+        error('getInitialState was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Did you mean to define a state property instead?', name);
+      }
+
+      if (instance.getDefaultProps && !instance.getDefaultProps.isReactClassApproved) {
+        error('getDefaultProps was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Use a static property to define defaultProps instead.', name);
+      }
+
+      if (instance.propTypes) {
+        error('propTypes was defined as an instance property on %s. Use a static ' + 'property to define propTypes instead.', name);
+      }
+
+      if (instance.contextType) {
+        error('contextType was defined as an instance property on %s. Use a static ' + 'property to define contextType instead.', name);
+      }
+
+      {
+        if (instance.contextTypes) {
+          error('contextTypes was defined as an instance property on %s. Use a static ' + 'property to define contextTypes instead.', name);
+        }
+
+        if (ctor.contextType && ctor.contextTypes && !didWarnAboutContextTypeAndContextTypes.has(ctor)) {
+          didWarnAboutContextTypeAndContextTypes.add(ctor);
+
+          error('%s declares both contextTypes and contextType static properties. ' + 'The legacy contextTypes property will be ignored.', name);
+        }
+      }
+
+      if (typeof instance.componentShouldUpdate === 'function') {
+        error('%s has a method called ' + 'componentShouldUpdate(). Did you mean shouldComponentUpdate()? ' + 'The name is phrased as a question because the function is ' + 'expected to return a value.', name);
+      }
+
+      if (ctor.prototype && ctor.prototype.isPureReactComponent && typeof instance.shouldComponentUpdate !== 'undefined') {
+        error('%s has a method called shouldComponentUpdate(). ' + 'shouldComponentUpdate should not be used when extending React.PureComponent. ' + 'Please extend React.Component if shouldComponentUpdate is used.', getComponentName(ctor) || 'A pure component');
+      }
+
+      if (typeof instance.componentDidUnmount === 'function') {
+        error('%s has a method called ' + 'componentDidUnmount(). But there is no such lifecycle method. ' + 'Did you mean componentWillUnmount()?', name);
+      }
+
+      if (typeof instance.componentDidReceiveProps === 'function') {
+        error('%s has a method called ' + 'componentDidReceiveProps(). But there is no such lifecycle method. ' + 'If you meant to update the state in response to changing props, ' + 'use componentWillReceiveProps(). If you meant to fetch data or ' + 'run side-effects or mutations after React has updated the UI, use componentDidUpdate().', name);
+      }
+
+      if (typeof instance.componentWillRecieveProps === 'function') {
+        error('%s has a method called ' + 'componentWillRecieveProps(). Did you mean componentWillReceiveProps()?', name);
+      }
+
+      if (typeof instance.UNSAFE_componentWillRecieveProps === 'function') {
+        error('%s has a method called ' + 'UNSAFE_componentWillRecieveProps(). Did you mean UNSAFE_componentWillReceiveProps()?', name);
+      }
+
+      var hasMutatedProps = instance.props !== newProps;
+
+      if (instance.props !== undefined && hasMutatedProps) {
+        error('%s(...): When calling super() in `%s`, make sure to pass ' + "up the same props that your component's constructor was passed.", name, name);
+      }
+
+      if (instance.defaultProps) {
+        error('Setting defaultProps as an instance property on %s is not supported and will be ignored.' + ' Instead, define defaultProps as a static property on %s.', name, name);
+      }
+
+      if (typeof instance.getSnapshotBeforeUpdate === 'function' && typeof instance.componentDidUpdate !== 'function' && !didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate.has(ctor)) {
+        didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate.add(ctor);
+
+        error('%s: getSnapshotBeforeUpdate() should be used with componentDidUpdate(). ' + 'This component defines getSnapshotBeforeUpdate() only.', getComponentName(ctor));
+      }
+
+      if (typeof instance.getDerivedStateFromProps === 'function') {
+        error('%s: getDerivedStateFromProps() is defined as an instance method ' + 'and will be ignored. Instead, declare it as a static method.', name);
+      }
+
+      if (typeof instance.getDerivedStateFromError === 'function') {
+        error('%s: getDerivedStateFromError() is defined as an instance method ' + 'and will be ignored. Instead, declare it as a static method.', name);
+      }
+
+      if (typeof ctor.getSnapshotBeforeUpdate === 'function') {
+        error('%s: getSnapshotBeforeUpdate() is defined as a static method ' + 'and will be ignored. Instead, declare it as an instance method.', name);
+      }
+
+      var _state = instance.state;
+
+      if (_state && (typeof _state !== 'object' || isArray(_state))) {
+        error('%s.state: must be set to an object or null', name);
+      }
+
+      if (typeof instance.getChildContext === 'function' && typeof ctor.childContextTypes !== 'object') {
+        error('%s.getChildContext(): childContextTypes must be defined in order to ' + 'use getChildContext().', name);
+      }
+    }
+  }
+
+  function adoptClassInstance(workInProgress, instance) {
+    instance.updater = classComponentUpdater;
+    workInProgress.stateNode = instance; // The instance needs access to the fiber so that it can schedule updates
+
+    set(instance, workInProgress);
+
+    {
+      instance._reactInternalInstance = fakeInternalInstance;
+    }
+  }
+
+  function constructClassInstance(workInProgress, ctor, props) {
+    var isLegacyContextConsumer = false;
+    var unmaskedContext = emptyContextObject;
+    var context = emptyContextObject;
+    var contextType = ctor.contextType;
+
+    {
+      if ('contextType' in ctor) {
+        var isValid = // Allow null for conditional declaration
+        contextType === null || contextType !== undefined && contextType.$$typeof === REACT_CONTEXT_TYPE && contextType._context === undefined; // Not a <Context.Consumer>
+
+        if (!isValid && !didWarnAboutInvalidateContextType.has(ctor)) {
+          didWarnAboutInvalidateContextType.add(ctor);
+          var addendum = '';
+
+          if (contextType === undefined) {
+            addendum = ' However, it is set to undefined. ' + 'This can be caused by a typo or by mixing up named and default imports. ' + 'This can also happen due to a circular dependency, so ' + 'try moving the createContext() call to a separate file.';
+          } else if (typeof contextType !== 'object') {
+            addendum = ' However, it is set to a ' + typeof contextType + '.';
+          } else if (contextType.$$typeof === REACT_PROVIDER_TYPE) {
+            addendum = ' Did you accidentally pass the Context.Provider instead?';
+          } else if (contextType._context !== undefined) {
+            // <Context.Consumer>
+            addendum = ' Did you accidentally pass the Context.Consumer instead?';
+          } else {
+            addendum = ' However, it is set to an object with keys {' + Object.keys(contextType).join(', ') + '}.';
+          }
+
+          error('%s defines an invalid contextType. ' + 'contextType should point to the Context object returned by React.createContext().%s', getComponentName(ctor) || 'Component', addendum);
+        }
+      }
+    }
+
+    if (typeof contextType === 'object' && contextType !== null) {
+      context = readContext(contextType);
+    } else {
+      unmaskedContext = getUnmaskedContext(workInProgress, ctor, true);
+      var contextTypes = ctor.contextTypes;
+      isLegacyContextConsumer = contextTypes !== null && contextTypes !== undefined;
+      context = isLegacyContextConsumer ? getMaskedContext(workInProgress, unmaskedContext) : emptyContextObject;
+    } // Instantiate twice to help detect side-effects.
+
+
+    {
+      if ( workInProgress.mode & StrictMode) {
+        disableLogs();
+
+        try {
+          new ctor(props, context); // eslint-disable-line no-new
+        } finally {
+          reenableLogs();
+        }
+      }
+    }
+
+    var instance = new ctor(props, context);
+    var state = workInProgress.memoizedState = instance.state !== null && instance.state !== undefined ? instance.state : null;
+    adoptClassInstance(workInProgress, instance);
+
+    {
+      if (typeof ctor.getDerivedStateFromProps === 'function' && state === null) {
+        var componentName = getComponentName(ctor) || 'Component';
+
+        if (!didWarnAboutUninitializedState.has(componentName)) {
+          didWarnAboutUninitializedState.add(componentName);
+
+          error('`%s` uses `getDerivedStateFromProps` but its initial state is ' + '%s. This is not recommended. Instead, define the initial state by ' + 'assigning an object to `this.state` in the constructor of `%s`. ' + 'This ensures that `getDerivedStateFromProps` arguments have a consistent shape.', componentName, instance.state === null ? 'null' : 'undefined', componentName);
+        }
+      } // If new component APIs are defined, "unsafe" lifecycles won't be called.
+      // Warn about these lifecycles if they are present.
+      // Don't warn about react-lifecycles-compat polyfilled methods though.
+
+
+      if (typeof ctor.getDerivedStateFromProps === 'function' || typeof instance.getSnapshotBeforeUpdate === 'function') {
+        var foundWillMountName = null;
+        var foundWillReceivePropsName = null;
+        var foundWillUpdateName = null;
+
+        if (typeof instance.componentWillMount === 'function' && instance.componentWillMount.__suppressDeprecationWarning !== true) {
+          foundWillMountName = 'componentWillMount';
+        } else if (typeof instance.UNSAFE_componentWillMount === 'function') {
+          foundWillMountName = 'UNSAFE_componentWillMount';
+        }
+
+        if (typeof instance.componentWillReceiveProps === 'function' && instance.componentWillReceiveProps.__suppressDeprecationWarning !== true) {
+          foundWillReceivePropsName = 'componentWillReceiveProps';
+        } else if (typeof instance.UNSAFE_componentWillReceiveProps === 'function') {
+          foundWillReceivePropsName = 'UNSAFE_componentWillReceiveProps';
+        }
+
+        if (typeof instance.componentWillUpdate === 'function' && instance.componentWillUpdate.__suppressDeprecationWarning !== true) {
+          foundWillUpdateName = 'componentWillUpdate';
+        } else if (typeof instance.UNSAFE_componentWillUpdate === 'function') {
+          foundWillUpdateName = 'UNSAFE_componentWillUpdate';
+        }
+
+        if (foundWillMountName !== null || foundWillReceivePropsName !== null || foundWillUpdateName !== null) {
+          var _componentName = getComponentName(ctor) || 'Component';
+
+          var newApiName = typeof ctor.getDerivedStateFromProps === 'function' ? 'getDerivedStateFromProps()' : 'getSnapshotBeforeUpdate()';
+
+          if (!didWarnAboutLegacyLifecyclesAndDerivedState.has(_componentName)) {
+            didWarnAboutLegacyLifecyclesAndDerivedState.add(_componentName);
+
+            error('Unsafe legacy lifecycles will not be called for components using new component APIs.\n\n' + '%s uses %s but also contains the following legacy lifecycles:%s%s%s\n\n' + 'The above lifecycles should be removed. Learn more about this warning here:\n' + 'https://reactjs.org/link/unsafe-component-lifecycles', _componentName, newApiName, foundWillMountName !== null ? "\n  " + foundWillMountName : '', foundWillReceivePropsName !== null ? "\n  " + foundWillReceivePropsName : '', foundWillUpdateName !== null ? "\n  " + foundWillUpdateName : '');
+          }
+        }
+      }
+    } // Cache unmasked context so we can avoid recreating masked context unless necessary.
+    // ReactFiberContext usually updates this cache but can't for newly-created instances.
+
+
+    if (isLegacyContextConsumer) {
+      cacheContext(workInProgress, unmaskedContext, context);
+    }
+
+    return instance;
+  }
+
+  function callComponentWillMount(workInProgress, instance) {
+    var oldState = instance.state;
+
+    if (typeof instance.componentWillMount === 'function') {
+      instance.componentWillMount();
+    }
+
+    if (typeof instance.UNSAFE_componentWillMount === 'function') {
+      instance.UNSAFE_componentWillMount();
+    }
+
+    if (oldState !== instance.state) {
+      {
+        error('%s.componentWillMount(): Assigning directly to this.state is ' + "deprecated (except inside a component's " + 'constructor). Use setState instead.', getComponentName(workInProgress.type) || 'Component');
+      }
+
+      classComponentUpdater.enqueueReplaceState(instance, instance.state, null);
+    }
+  }
+
+  function callComponentWillReceiveProps(workInProgress, instance, newProps, nextContext) {
+    var oldState = instance.state;
+
+    if (typeof instance.componentWillReceiveProps === 'function') {
+      instance.componentWillReceiveProps(newProps, nextContext);
+    }
+
+    if (typeof instance.UNSAFE_componentWillReceiveProps === 'function') {
+      instance.UNSAFE_componentWillReceiveProps(newProps, nextContext);
+    }
+
+    if (instance.state !== oldState) {
+      {
+        var componentName = getComponentName(workInProgress.type) || 'Component';
+
+        if (!didWarnAboutStateAssignmentForComponent.has(componentName)) {
+          didWarnAboutStateAssignmentForComponent.add(componentName);
+
+          error('%s.componentWillReceiveProps(): Assigning directly to ' + "this.state is deprecated (except inside a component's " + 'constructor). Use setState instead.', componentName);
+        }
+      }
+
+      classComponentUpdater.enqueueReplaceState(instance, instance.state, null);
+    }
+  } // Invokes the mount life-cycles on a previously never rendered instance.
+
+
+  function mountClassInstance(workInProgress, ctor, newProps, renderLanes) {
+    {
+      checkClassInstance(workInProgress, ctor, newProps);
+    }
+
+    var instance = workInProgress.stateNode;
+    instance.props = newProps;
+    instance.state = workInProgress.memoizedState;
+    instance.refs = emptyRefsObject;
+    initializeUpdateQueue(workInProgress);
+    var contextType = ctor.contextType;
+
+    if (typeof contextType === 'object' && contextType !== null) {
+      instance.context = readContext(contextType);
+    } else {
+      var unmaskedContext = getUnmaskedContext(workInProgress, ctor, true);
+      instance.context = getMaskedContext(workInProgress, unmaskedContext);
+    }
+
+    {
+      if (instance.state === newProps) {
+        var componentName = getComponentName(ctor) || 'Component';
+
+        if (!didWarnAboutDirectlyAssigningPropsToState.has(componentName)) {
+          didWarnAboutDirectlyAssigningPropsToState.add(componentName);
+
+          error('%s: It is not recommended to assign props directly to state ' + "because updates to props won't be reflected in state. " + 'In most cases, it is better to use props directly.', componentName);
+        }
+      }
+
+      if (workInProgress.mode & StrictMode) {
+        ReactStrictModeWarnings.recordLegacyContextWarning(workInProgress, instance);
+      }
+
+      {
+        ReactStrictModeWarnings.recordUnsafeLifecycleWarnings(workInProgress, instance);
+      }
+    }
+
+    processUpdateQueue(workInProgress, newProps, instance, renderLanes);
+    instance.state = workInProgress.memoizedState;
+    var getDerivedStateFromProps = ctor.getDerivedStateFromProps;
+
+    if (typeof getDerivedStateFromProps === 'function') {
+      applyDerivedStateFromProps(workInProgress, ctor, getDerivedStateFromProps, newProps);
+      instance.state = workInProgress.memoizedState;
+    } // In order to support react-lifecycles-compat polyfilled components,
+    // Unsafe lifecycles should not be invoked for components using the new APIs.
+
+
+    if (typeof ctor.getDerivedStateFromProps !== 'function' && typeof instance.getSnapshotBeforeUpdate !== 'function' && (typeof instance.UNSAFE_componentWillMount === 'function' || typeof instance.componentWillMount === 'function')) {
+      callComponentWillMount(workInProgress, instance); // If we had additional state updates during this life-cycle, let's
+      // process them now.
+
+      processUpdateQueue(workInProgress, newProps, instance, renderLanes);
+      instance.state = workInProgress.memoizedState;
+    }
+
+    if (typeof instance.componentDidMount === 'function') {
+      workInProgress.flags |= Update;
+    }
+  }
+
+  function resumeMountClassInstance(workInProgress, ctor, newProps, renderLanes) {
+    var instance = workInProgress.stateNode;
+    var oldProps = workInProgress.memoizedProps;
+    instance.props = oldProps;
+    var oldContext = instance.context;
+    var contextType = ctor.contextType;
+    var nextContext = emptyContextObject;
+
+    if (typeof contextType === 'object' && contextType !== null) {
+      nextContext = readContext(contextType);
+    } else {
+      var nextLegacyUnmaskedContext = getUnmaskedContext(workInProgress, ctor, true);
+      nextContext = getMaskedContext(workInProgress, nextLegacyUnmaskedContext);
+    }
+
+    var getDerivedStateFromProps = ctor.getDerivedStateFromProps;
+    var hasNewLifecycles = typeof getDerivedStateFromProps === 'function' || typeof instance.getSnapshotBeforeUpdate === 'function'; // Note: During these life-cycles, instance.props/instance.state are what
+    // ever the previously attempted to render - not the "current". However,
+    // during componentDidUpdate we pass the "current" props.
+    // In order to support react-lifecycles-compat polyfilled components,
+    // Unsafe lifecycles should not be invoked for components using the new APIs.
+
+    if (!hasNewLifecycles && (typeof instance.UNSAFE_componentWillReceiveProps === 'function' || typeof instance.componentWillReceiveProps === 'function')) {
+      if (oldProps !== newProps || oldContext !== nextContext) {
+        callComponentWillReceiveProps(workInProgress, instance, newProps, nextContext);
+      }
+    }
+
+    resetHasForceUpdateBeforeProcessing();
+    var oldState = workInProgress.memoizedState;
+    var newState = instance.state = oldState;
+    processUpdateQueue(workInProgress, newProps, instance, renderLanes);
+    newState = workInProgress.memoizedState;
+
+    if (oldProps === newProps && oldState === newState && !hasContextChanged() && !checkHasForceUpdateAfterProcessing()) {
+      // If an update was already in progress, we should schedule an Update
+      // effect even though we're bailing out, so that cWU/cDU are called.
+      if (typeof instance.componentDidMount === 'function') {
+        workInProgress.flags |= Update;
+      }
+
+      return false;
+    }
+
+    if (typeof getDerivedStateFromProps === 'function') {
+      applyDerivedStateFromProps(workInProgress, ctor, getDerivedStateFromProps, newProps);
+      newState = workInProgress.memoizedState;
+    }
+
+    var shouldUpdate = checkHasForceUpdateAfterProcessing() || checkShouldComponentUpdate(workInProgress, ctor, oldProps, newProps, oldState, newState, nextContext);
+
+    if (shouldUpdate) {
+      // In order to support react-lifecycles-compat polyfilled components,
+      // Unsafe lifecycles should not be invoked for components using the new APIs.
+      if (!hasNewLifecycles && (typeof instance.UNSAFE_componentWillMount === 'function' || typeof instance.componentWillMount === 'function')) {
+        if (typeof instance.componentWillMount === 'function') {
+          instance.componentWillMount();
+        }
+
+        if (typeof instance.UNSAFE_componentWillMount === 'function') {
+          instance.UNSAFE_componentWillMount();
+        }
+      }
+
+      if (typeof instance.componentDidMount === 'function') {
+        workInProgress.flags |= Update;
+      }
+    } else {
+      // If an update was already in progress, we should schedule an Update
+      // effect even though we're bailing out, so that cWU/cDU are called.
+      if (typeof instance.componentDidMount === 'function') {
+        workInProgress.flags |= Update;
+      } // If shouldComponentUpdate returned false, we should still update the
+      // memoized state to indicate that this work can be reused.
+
+
+      workInProgress.memoizedProps = newProps;
+      workInProgress.memoizedState = newState;
+    } // Update the existing instance's state, props, and context pointers even
+    // if shouldComponentUpdate returns false.
+
+
+    instance.props = newProps;
+    instance.state = newState;
+    instance.context = nextContext;
+    return shouldUpdate;
+  } // Invokes the update life-cycles and returns false if it shouldn't rerender.
+
+
+  function updateClassInstance(current, workInProgress, ctor, newProps, renderLanes) {
+    var instance = workInProgress.stateNode;
+    cloneUpdateQueue(current, workInProgress);
+    var unresolvedOldProps = workInProgress.memoizedProps;
+    var oldProps = workInProgress.type === workInProgress.elementType ? unresolvedOldProps : resolveDefaultProps(workInProgress.type, unresolvedOldProps);
+    instance.props = oldProps;
+    var unresolvedNewProps = workInProgress.pendingProps;
+    var oldContext = instance.context;
+    var contextType = ctor.contextType;
+    var nextContext = emptyContextObject;
+
+    if (typeof contextType === 'object' && contextType !== null) {
+      nextContext = readContext(contextType);
+    } else {
+      var nextUnmaskedContext = getUnmaskedContext(workInProgress, ctor, true);
+      nextContext = getMaskedContext(workInProgress, nextUnmaskedContext);
+    }
+
+    var getDerivedStateFromProps = ctor.getDerivedStateFromProps;
+    var hasNewLifecycles = typeof getDerivedStateFromProps === 'function' || typeof instance.getSnapshotBeforeUpdate === 'function'; // Note: During these life-cycles, instance.props/instance.state are what
+    // ever the previously attempted to render - not the "current". However,
+    // during componentDidUpdate we pass the "current" props.
+    // In order to support react-lifecycles-compat polyfilled components,
+    // Unsafe lifecycles should not be invoked for components using the new APIs.
+
+    if (!hasNewLifecycles && (typeof instance.UNSAFE_componentWillReceiveProps === 'function' || typeof instance.componentWillReceiveProps === 'function')) {
+      if (unresolvedOldProps !== unresolvedNewProps || oldContext !== nextContext) {
+        callComponentWillReceiveProps(workInProgress, instance, newProps, nextContext);
+      }
+    }
+
+    resetHasForceUpdateBeforeProcessing();
+    var oldState = workInProgress.memoizedState;
+    var newState = instance.state = oldState;
+    processUpdateQueue(workInProgress, newProps, instance, renderLanes);
+    newState = workInProgress.memoizedState;
+
+    if (unresolvedOldProps === unresolvedNewProps && oldState === newState && !hasContextChanged() && !checkHasForceUpdateAfterProcessing()) {
+      // If an update was already in progress, we should schedule an Update
+      // effect even though we're bailing out, so that cWU/cDU are called.
+      if (typeof instance.componentDidUpdate === 'function') {
+        if (unresolvedOldProps !== current.memoizedProps || oldState !== current.memoizedState) {
+          workInProgress.flags |= Update;
+        }
+      }
+
+      if (typeof instance.getSnapshotBeforeUpdate === 'function') {
+        if (unresolvedOldProps !== current.memoizedProps || oldState !== current.memoizedState) {
+          workInProgress.flags |= Snapshot;
+        }
+      }
+
+      return false;
+    }
+
+    if (typeof getDerivedStateFromProps === 'function') {
+      applyDerivedStateFromProps(workInProgress, ctor, getDerivedStateFromProps, newProps);
+      newState = workInProgress.memoizedState;
+    }
+
+    var shouldUpdate = checkHasForceUpdateAfterProcessing() || checkShouldComponentUpdate(workInProgress, ctor, oldProps, newProps, oldState, newState, nextContext);
+
+    if (shouldUpdate) {
+      // In order to support react-lifecycles-compat polyfilled components,
+      // Unsafe lifecycles should not be invoked for components using the new APIs.
+      if (!hasNewLifecycles && (typeof instance.UNSAFE_componentWillUpdate === 'function' || typeof instance.componentWillUpdate === 'function')) {
+        if (typeof instance.componentWillUpdate === 'function') {
+          instance.componentWillUpdate(newProps, newState, nextContext);
+        }
+
+        if (typeof instance.UNSAFE_componentWillUpdate === 'function') {
+          instance.UNSAFE_componentWillUpdate(newProps, newState, nextContext);
+        }
+      }
+
+      if (typeof instance.componentDidUpdate === 'function') {
+        workInProgress.flags |= Update;
+      }
+
+      if (typeof instance.getSnapshotBeforeUpdate === 'function') {
+        workInProgress.flags |= Snapshot;
+      }
+    } else {
+      // If an update was already in progress, we should schedule an Update
+      // effect even though we're bailing out, so that cWU/cDU are called.
+      if (typeof instance.componentDidUpdate === 'function') {
+        if (unresolvedOldProps !== current.memoizedProps || oldState !== current.memoizedState) {
+          workInProgress.flags |= Update;
+        }
+      }
+
+      if (typeof instance.getSnapshotBeforeUpdate === 'function') {
+        if (unresolvedOldProps !== current.memoizedProps || oldState !== current.memoizedState) {
+          workInProgress.flags |= Snapshot;
+        }
+      } // If shouldComponentUpdate returned false, we should still update the
+      // memoized props/state to indicate that this work can be reused.
+
+
+      workInProgress.memoizedProps = newProps;
+      workInProgress.memoizedState = newState;
+    } // Update the existing instance's state, props, and context pointers even
+    // if shouldComponentUpdate returns false.
+
+
+    instance.props = newProps;
+    instance.state = newState;
+    instance.context = nextContext;
+    return shouldUpdate;
+  }
+
+  var didWarnAboutMaps;
+  var didWarnAboutGenerators;
+  var didWarnAboutStringRefs;
+  var ownerHasKeyUseWarning;
+  var ownerHasFunctionTypeWarning;
+
+  var warnForMissingKey = function (child, returnFiber) {};
+
+  {
+    didWarnAboutMaps = false;
+    didWarnAboutGenerators = false;
+    didWarnAboutStringRefs = {};
+    /**
+     * Warn if there's no key explicitly set on dynamic arrays of children or
+     * object keys are not valid. This allows us to keep track of children between
+     * updates.
+     */
+
+    ownerHasKeyUseWarning = {};
+    ownerHasFunctionTypeWarning = {};
+
+    warnForMissingKey = function (child, returnFiber) {
+      if (child === null || typeof child !== 'object') {
+        return;
+      }
+
+      if (!child._store || child._store.validated || child.key != null) {
+        return;
+      }
+
+      if (!(typeof child._store === 'object')) {
+        {
+          throw Error( "React Component in warnForMissingKey should have a _store. This error is likely caused by a bug in React. Please file an issue." );
+        }
+      }
+
+      child._store.validated = true;
+      var componentName = getComponentName(returnFiber.type) || 'Component';
+
+      if (ownerHasKeyUseWarning[componentName]) {
+        return;
+      }
+
+      ownerHasKeyUseWarning[componentName] = true;
+
+      error('Each child in a list should have a unique ' + '"key" prop. See https://reactjs.org/link/warning-keys for ' + 'more information.');
+    };
+  }
+
+  var isArray$1 = Array.isArray;
+
+  function coerceRef(returnFiber, current, element) {
+    var mixedRef = element.ref;
+
+    if (mixedRef !== null && typeof mixedRef !== 'function' && typeof mixedRef !== 'object') {
+      {
+        // TODO: Clean this up once we turn on the string ref warning for
+        // everyone, because the strict mode case will no longer be relevant
+        if ((returnFiber.mode & StrictMode || warnAboutStringRefs) && // We warn in ReactElement.js if owner and self are equal for string refs
+        // because these cannot be automatically converted to an arrow function
+        // using a codemod. Therefore, we don't have to warn about string refs again.
+        !(element._owner && element._self && element._owner.stateNode !== element._self)) {
+          var componentName = getComponentName(returnFiber.type) || 'Component';
+
+          if (!didWarnAboutStringRefs[componentName]) {
+            {
+              error('A string ref, "%s", has been found within a strict mode tree. ' + 'String refs are a source of potential bugs and should be avoided. ' + 'We recommend using useRef() or createRef() instead. ' + 'Learn more about using refs safely here: ' + 'https://reactjs.org/link/strict-mode-string-ref', mixedRef);
+            }
+
+            didWarnAboutStringRefs[componentName] = true;
+          }
+        }
+      }
+
+      if (element._owner) {
+        var owner = element._owner;
+        var inst;
+
+        if (owner) {
+          var ownerFiber = owner;
+
+          if (!(ownerFiber.tag === ClassComponent)) {
+            {
+              throw Error( "Function components cannot have string refs. We recommend using useRef() instead. Learn more about using refs safely here: https://reactjs.org/link/strict-mode-string-ref" );
+            }
+          }
+
+          inst = ownerFiber.stateNode;
+        }
+
+        if (!inst) {
+          {
+            throw Error( "Missing owner for string ref " + mixedRef + ". This error is likely caused by a bug in React. Please file an issue." );
+          }
+        }
+
+        var stringRef = '' + mixedRef; // Check if previous string ref matches new string ref
+
+        if (current !== null && current.ref !== null && typeof current.ref === 'function' && current.ref._stringRef === stringRef) {
+          return current.ref;
+        }
+
+        var ref = function (value) {
+          var refs = inst.refs;
+
+          if (refs === emptyRefsObject) {
+            // This is a lazy pooled frozen object, so we need to initialize.
+            refs = inst.refs = {};
+          }
+
+          if (value === null) {
+            delete refs[stringRef];
+          } else {
+            refs[stringRef] = value;
+          }
+        };
+
+        ref._stringRef = stringRef;
+        return ref;
+      } else {
+        if (!(typeof mixedRef === 'string')) {
+          {
+            throw Error( "Expected ref to be a function, a string, an object returned by React.createRef(), or null." );
+          }
+        }
+
+        if (!element._owner) {
+          {
+            throw Error( "Element ref was specified as a string (" + mixedRef + ") but no owner was set. This could happen for one of the following reasons:\n1. You may be adding a ref to a function component\n2. You may be adding a ref to a component that was not created inside a component's render method\n3. You have multiple copies of React loaded\nSee https://reactjs.org/link/refs-must-have-owner for more information." );
+          }
+        }
+      }
+    }
+
+    return mixedRef;
+  }
+
+  function throwOnInvalidObjectType(returnFiber, newChild) {
+    if (returnFiber.type !== 'textarea') {
+      {
+        {
+          throw Error( "Objects are not valid as a React child (found: " + (Object.prototype.toString.call(newChild) === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : newChild) + "). If you meant to render a collection of children, use an array instead." );
+        }
+      }
+    }
+  }
+
+  function warnOnFunctionType(returnFiber) {
+    {
+      var componentName = getComponentName(returnFiber.type) || 'Component';
+
+      if (ownerHasFunctionTypeWarning[componentName]) {
+        return;
+      }
+
+      ownerHasFunctionTypeWarning[componentName] = true;
+
+      error('Functions are not valid as a React child. This may happen if ' + 'you return a Component instead of <Component /> from render. ' + 'Or maybe you meant to call this function rather than return it.');
+    }
+  } // We avoid inlining this to avoid potential deopts from using try/catch.
+  // to be able to optimize each path individually by branching early. This needs
+  // a compiler or we can do it manually. Helpers that don't need this branching
+  // live outside of this function.
+
+
+  function ChildReconciler(shouldTrackSideEffects) {
+    function deleteChild(returnFiber, childToDelete) {
+      if (!shouldTrackSideEffects) {
+        // Noop.
+        return;
+      } // Deletions are added in reversed order so we add it to the front.
+      // At this point, the return fiber's effect list is empty except for
+      // deletions, so we can just append the deletion to the list. The remaining
+      // effects aren't added until the complete phase. Once we implement
+      // resuming, this may not be true.
+
+
+      var last = returnFiber.lastEffect;
+
+      if (last !== null) {
+        last.nextEffect = childToDelete;
+        returnFiber.lastEffect = childToDelete;
+      } else {
+        returnFiber.firstEffect = returnFiber.lastEffect = childToDelete;
+      }
+
+      childToDelete.nextEffect = null;
+      childToDelete.flags = Deletion;
+    }
+
+    function deleteRemainingChildren(returnFiber, currentFirstChild) {
+      if (!shouldTrackSideEffects) {
+        // Noop.
+        return null;
+      } // TODO: For the shouldClone case, this could be micro-optimized a bit by
+      // assuming that after the first child we've already added everything.
+
+
+      var childToDelete = currentFirstChild;
+
+      while (childToDelete !== null) {
+        deleteChild(returnFiber, childToDelete);
+        childToDelete = childToDelete.sibling;
+      }
+
+      return null;
+    }
+
+    function mapRemainingChildren(returnFiber, currentFirstChild) {
+      // Add the remaining children to a temporary map so that we can find them by
+      // keys quickly. Implicit (null) keys get added to this set with their index
+      // instead.
+      var existingChildren = new Map();
+      var existingChild = currentFirstChild;
+
+      while (existingChild !== null) {
+        if (existingChild.key !== null) {
+          existingChildren.set(existingChild.key, existingChild);
+        } else {
+          existingChildren.set(existingChild.index, existingChild);
+        }
+
+        existingChild = existingChild.sibling;
+      }
+
+      return existingChildren;
+    }
+
+    function useFiber(fiber, pendingProps) {
+      // We currently set sibling to null and index to 0 here because it is easy
+      // to forget to do before returning it. E.g. for the single child case.
+      var clone = createWorkInProgress(fiber, pendingProps);
+      clone.index = 0;
+      clone.sibling = null;
+      return clone;
+    }
+
+    function placeChild(newFiber, lastPlacedIndex, newIndex) {
+      newFiber.index = newIndex;
+
+      if (!shouldTrackSideEffects) {
+        // Noop.
+        return lastPlacedIndex;
+      }
+
+      var current = newFiber.alternate;
+
+      if (current !== null) {
+        var oldIndex = current.index;
+
+        if (oldIndex < lastPlacedIndex) {
+          // This is a move.
+          newFiber.flags = Placement;
+          return lastPlacedIndex;
+        } else {
+          // This item can stay in place.
+          return oldIndex;
+        }
+      } else {
+        // This is an insertion.
+        newFiber.flags = Placement;
+        return lastPlacedIndex;
+      }
+    }
+
+    function placeSingleChild(newFiber) {
+      // This is simpler for the single child case. We only need to do a
+      // placement for inserting new children.
+      if (shouldTrackSideEffects && newFiber.alternate === null) {
+        newFiber.flags = Placement;
+      }
+
+      return newFiber;
+    }
+
+    function updateTextNode(returnFiber, current, textContent, lanes) {
+      if (current === null || current.tag !== HostText) {
+        // Insert
+        var created = createFiberFromText(textContent, returnFiber.mode, lanes);
+        created.return = returnFiber;
+        return created;
+      } else {
+        // Update
+        var existing = useFiber(current, textContent);
+        existing.return = returnFiber;
+        return existing;
+      }
+    }
+
+    function updateElement(returnFiber, current, element, lanes) {
+      if (current !== null) {
+        if (current.elementType === element.type || ( // Keep this check inline so it only runs on the false path:
+         isCompatibleFamilyForHotReloading(current, element) )) {
+          // Move based on index
+          var existing = useFiber(current, element.props);
+          existing.ref = coerceRef(returnFiber, current, element);
+          existing.return = returnFiber;
+
+          {
+            existing._debugSource = element._source;
+            existing._debugOwner = element._owner;
+          }
+
+          return existing;
+        }
+      } // Insert
+
+
+      var created = createFiberFromElement(element, returnFiber.mode, lanes);
+      created.ref = coerceRef(returnFiber, current, element);
+      created.return = returnFiber;
+      return created;
+    }
+
+    function updatePortal(returnFiber, current, portal, lanes) {
+      if (current === null || current.tag !== HostPortal || current.stateNode.containerInfo !== portal.containerInfo || current.stateNode.implementation !== portal.implementation) {
+        // Insert
+        var created = createFiberFromPortal(portal, returnFiber.mode, lanes);
+        created.return = returnFiber;
+        return created;
+      } else {
+        // Update
+        var existing = useFiber(current, portal.children || []);
+        existing.return = returnFiber;
+        return existing;
+      }
+    }
+
+    function updateFragment(returnFiber, current, fragment, lanes, key) {
+      if (current === null || current.tag !== Fragment) {
+        // Insert
+        var created = createFiberFromFragment(fragment, returnFiber.mode, lanes, key);
+        created.return = returnFiber;
+        return created;
+      } else {
+        // Update
+        var existing = useFiber(current, fragment);
+        existing.return = returnFiber;
+        return existing;
+      }
+    }
+
+    function createChild(returnFiber, newChild, lanes) {
+      if (typeof newChild === 'string' || typeof newChild === 'number') {
+        // Text nodes don't have keys. If the previous node is implicitly keyed
+        // we can continue to replace it without aborting even if it is not a text
+        // node.
+        var created = createFiberFromText('' + newChild, returnFiber.mode, lanes);
+        created.return = returnFiber;
+        return created;
+      }
+
+      if (typeof newChild === 'object' && newChild !== null) {
+        switch (newChild.$$typeof) {
+          case REACT_ELEMENT_TYPE:
+            {
+              var _created = createFiberFromElement(newChild, returnFiber.mode, lanes);
+
+              _created.ref = coerceRef(returnFiber, null, newChild);
+              _created.return = returnFiber;
+              return _created;
+            }
+
+          case REACT_PORTAL_TYPE:
+            {
+              var _created2 = createFiberFromPortal(newChild, returnFiber.mode, lanes);
+
+              _created2.return = returnFiber;
+              return _created2;
+            }
+        }
+
+        if (isArray$1(newChild) || getIteratorFn(newChild)) {
+          var _created3 = createFiberFromFragment(newChild, returnFiber.mode, lanes, null);
+
+          _created3.return = returnFiber;
+          return _created3;
+        }
+
+        throwOnInvalidObjectType(returnFiber, newChild);
+      }
+
+      {
+        if (typeof newChild === 'function') {
+          warnOnFunctionType(returnFiber);
+        }
+      }
+
+      return null;
+    }
+
+    function updateSlot(returnFiber, oldFiber, newChild, lanes) {
+      // Update the fiber if the keys match, otherwise return null.
+      var key = oldFiber !== null ? oldFiber.key : null;
+
+      if (typeof newChild === 'string' || typeof newChild === 'number') {
+        // Text nodes don't have keys. If the previous node is implicitly keyed
+        // we can continue to replace it without aborting even if it is not a text
+        // node.
+        if (key !== null) {
+          return null;
+        }
+
+        return updateTextNode(returnFiber, oldFiber, '' + newChild, lanes);
+      }
+
+      if (typeof newChild === 'object' && newChild !== null) {
+        switch (newChild.$$typeof) {
+          case REACT_ELEMENT_TYPE:
+            {
+              if (newChild.key === key) {
+                if (newChild.type === REACT_FRAGMENT_TYPE) {
+                  return updateFragment(returnFiber, oldFiber, newChild.props.children, lanes, key);
+                }
+
+                return updateElement(returnFiber, oldFiber, newChild, lanes);
+              } else {
+                return null;
+              }
+            }
+
+          case REACT_PORTAL_TYPE:
+            {
+              if (newChild.key === key) {
+                return updatePortal(returnFiber, oldFiber, newChild, lanes);
+              } else {
+                return null;
+              }
+            }
+        }
+
+        if (isArray$1(newChild) || getIteratorFn(newChild)) {
+          if (key !== null) {
+            return null;
+          }
+
+          return updateFragment(returnFiber, oldFiber, newChild, lanes, null);
+        }
+
+        throwOnInvalidObjectType(returnFiber, newChild);
+      }
+
+      {
+        if (typeof newChild === 'function') {
+          warnOnFunctionType(returnFiber);
+        }
+      }
+
+      return null;
+    }
+
+    function updateFromMap(existingChildren, returnFiber, newIdx, newChild, lanes) {
+      if (typeof newChild === 'string' || typeof newChild === 'number') {
+        // Text nodes don't have keys, so we neither have to check the old nor
+        // new node for the key. If both are text nodes, they match.
+        var matchedFiber = existingChildren.get(newIdx) || null;
+        return updateTextNode(returnFiber, matchedFiber, '' + newChild, lanes);
+      }
+
+      if (typeof newChild === 'object' && newChild !== null) {
+        switch (newChild.$$typeof) {
+          case REACT_ELEMENT_TYPE:
+            {
+              var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;
+
+              if (newChild.type === REACT_FRAGMENT_TYPE) {
+                return updateFragment(returnFiber, _matchedFiber, newChild.props.children, lanes, newChild.key);
+              }
+
+              return updateElement(returnFiber, _matchedFiber, newChild, lanes);
+            }
+
+          case REACT_PORTAL_TYPE:
+            {
+              var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;
+
+              return updatePortal(returnFiber, _matchedFiber2, newChild, lanes);
+            }
+
+        }
+
+        if (isArray$1(newChild) || getIteratorFn(newChild)) {
+          var _matchedFiber3 = existingChildren.get(newIdx) || null;
+
+          return updateFragment(returnFiber, _matchedFiber3, newChild, lanes, null);
+        }
+
+        throwOnInvalidObjectType(returnFiber, newChild);
+      }
+
+      {
+        if (typeof newChild === 'function') {
+          warnOnFunctionType(returnFiber);
+        }
+      }
+
+      return null;
+    }
+    /**
+     * Warns if there is a duplicate or missing key
+     */
+
+
+    function warnOnInvalidKey(child, knownKeys, returnFiber) {
+      {
+        if (typeof child !== 'object' || child === null) {
+          return knownKeys;
+        }
+
+        switch (child.$$typeof) {
+          case REACT_ELEMENT_TYPE:
+          case REACT_PORTAL_TYPE:
+            warnForMissingKey(child, returnFiber);
+            var key = child.key;
+
+            if (typeof key !== 'string') {
+              break;
+            }
+
+            if (knownKeys === null) {
+              knownKeys = new Set();
+              knownKeys.add(key);
+              break;
+            }
+
+            if (!knownKeys.has(key)) {
+              knownKeys.add(key);
+              break;
+            }
+
+            error('Encountered two children with the same key, `%s`. ' + 'Keys should be unique so that components maintain their identity ' + 'across updates. Non-unique keys may cause children to be ' + 'duplicated and/or omitted — the behavior is unsupported and ' + 'could change in a future version.', key);
+
+            break;
+        }
+      }
+
+      return knownKeys;
+    }
+
+    function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, lanes) {
+      // This algorithm can't optimize by searching from both ends since we
+      // don't have backpointers on fibers. I'm trying to see how far we can get
+      // with that model. If it ends up not being worth the tradeoffs, we can
+      // add it later.
+      // Even with a two ended optimization, we'd want to optimize for the case
+      // where there are few changes and brute force the comparison instead of
+      // going for the Map. It'd like to explore hitting that path first in
+      // forward-only mode and only go for the Map once we notice that we need
+      // lots of look ahead. This doesn't handle reversal as well as two ended
+      // search but that's unusual. Besides, for the two ended optimization to
+      // work on Iterables, we'd need to copy the whole set.
+      // In this first iteration, we'll just live with hitting the bad case
+      // (adding everything to a Map) in for every insert/move.
+      // If you change this code, also update reconcileChildrenIterator() which
+      // uses the same algorithm.
+      {
+        // First, validate keys.
+        var knownKeys = null;
+
+        for (var i = 0; i < newChildren.length; i++) {
+          var child = newChildren[i];
+          knownKeys = warnOnInvalidKey(child, knownKeys, returnFiber);
+        }
+      }
+
+      var resultingFirstChild = null;
+      var previousNewFiber = null;
+      var oldFiber = currentFirstChild;
+      var lastPlacedIndex = 0;
+      var newIdx = 0;
+      var nextOldFiber = null;
+
+      for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {
+        if (oldFiber.index > newIdx) {
+          nextOldFiber = oldFiber;
+          oldFiber = null;
+        } else {
+          nextOldFiber = oldFiber.sibling;
+        }
+
+        var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], lanes);
+
+        if (newFiber === null) {
+          // TODO: This breaks on empty slots like null children. That's
+          // unfortunate because it triggers the slow path all the time. We need
+          // a better way to communicate whether this was a miss or null,
+          // boolean, undefined, etc.
+          if (oldFiber === null) {
+            oldFiber = nextOldFiber;
+          }
+
+          break;
+        }
+
+        if (shouldTrackSideEffects) {
+          if (oldFiber && newFiber.alternate === null) {
+            // We matched the slot, but we didn't reuse the existing fiber, so we
+            // need to delete the existing child.
+            deleteChild(returnFiber, oldFiber);
+          }
+        }
+
+        lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);
+
+        if (previousNewFiber === null) {
+          // TODO: Move out of the loop. This only happens for the first run.
+          resultingFirstChild = newFiber;
+        } else {
+          // TODO: Defer siblings if we're not at the right index for this slot.
+          // I.e. if we had null values before, then we want to defer this
+          // for each null value. However, we also don't want to call updateSlot
+          // with the previous one.
+          previousNewFiber.sibling = newFiber;
+        }
+
+        previousNewFiber = newFiber;
+        oldFiber = nextOldFiber;
+      }
+
+      if (newIdx === newChildren.length) {
+        // We've reached the end of the new children. We can delete the rest.
+        deleteRemainingChildren(returnFiber, oldFiber);
+        return resultingFirstChild;
+      }
+
+      if (oldFiber === null) {
+        // If we don't have any more existing children we can choose a fast path
+        // since the rest will all be insertions.
+        for (; newIdx < newChildren.length; newIdx++) {
+          var _newFiber = createChild(returnFiber, newChildren[newIdx], lanes);
+
+          if (_newFiber === null) {
+            continue;
+          }
+
+          lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx);
+
+          if (previousNewFiber === null) {
+            // TODO: Move out of the loop. This only happens for the first run.
+            resultingFirstChild = _newFiber;
+          } else {
+            previousNewFiber.sibling = _newFiber;
+          }
+
+          previousNewFiber = _newFiber;
+        }
+
+        return resultingFirstChild;
+      } // Add all children to a key map for quick lookups.
+
+
+      var existingChildren = mapRemainingChildren(returnFiber, oldFiber); // Keep scanning and use the map to restore deleted items as moves.
+
+      for (; newIdx < newChildren.length; newIdx++) {
+        var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], lanes);
+
+        if (_newFiber2 !== null) {
+          if (shouldTrackSideEffects) {
+            if (_newFiber2.alternate !== null) {
+              // The new fiber is a work in progress, but if there exists a
+              // current, that means that we reused the fiber. We need to delete
+              // it from the child list so that we don't add it to the deletion
+              // list.
+              existingChildren.delete(_newFiber2.key === null ? newIdx : _newFiber2.key);
+            }
+          }
+
+          lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx);
+
+          if (previousNewFiber === null) {
+            resultingFirstChild = _newFiber2;
+          } else {
+            previousNewFiber.sibling = _newFiber2;
+          }
+
+          previousNewFiber = _newFiber2;
+        }
+      }
+
+      if (shouldTrackSideEffects) {
+        // Any existing children that weren't consumed above were deleted. We need
+        // to add them to the deletion list.
+        existingChildren.forEach(function (child) {
+          return deleteChild(returnFiber, child);
+        });
+      }
+
+      return resultingFirstChild;
+    }
+
+    function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, lanes) {
+      // This is the same implementation as reconcileChildrenArray(),
+      // but using the iterator instead.
+      var iteratorFn = getIteratorFn(newChildrenIterable);
+
+      if (!(typeof iteratorFn === 'function')) {
+        {
+          throw Error( "An object is not an iterable. This error is likely caused by a bug in React. Please file an issue." );
+        }
+      }
+
+      {
+        // We don't support rendering Generators because it's a mutation.
+        // See https://github.com/facebook/react/issues/12995
+        if (typeof Symbol === 'function' && // $FlowFixMe Flow doesn't know about toStringTag
+        newChildrenIterable[Symbol.toStringTag] === 'Generator') {
+          if (!didWarnAboutGenerators) {
+            error('Using Generators as children is unsupported and will likely yield ' + 'unexpected results because enumerating a generator mutates it. ' + 'You may convert it to an array with `Array.from()` or the ' + '`[...spread]` operator before rendering. Keep in mind ' + 'you might need to polyfill these features for older browsers.');
+          }
+
+          didWarnAboutGenerators = true;
+        } // Warn about using Maps as children
+
+
+        if (newChildrenIterable.entries === iteratorFn) {
+          if (!didWarnAboutMaps) {
+            error('Using Maps as children is not supported. ' + 'Use an array of keyed ReactElements instead.');
+          }
+
+          didWarnAboutMaps = true;
+        } // First, validate keys.
+        // We'll get a different iterator later for the main pass.
+
+
+        var _newChildren = iteratorFn.call(newChildrenIterable);
+
+        if (_newChildren) {
+          var knownKeys = null;
+
+          var _step = _newChildren.next();
+
+          for (; !_step.done; _step = _newChildren.next()) {
+            var child = _step.value;
+            knownKeys = warnOnInvalidKey(child, knownKeys, returnFiber);
+          }
+        }
+      }
+
+      var newChildren = iteratorFn.call(newChildrenIterable);
+
+      if (!(newChildren != null)) {
+        {
+          throw Error( "An iterable object provided no iterator." );
+        }
+      }
+
+      var resultingFirstChild = null;
+      var previousNewFiber = null;
+      var oldFiber = currentFirstChild;
+      var lastPlacedIndex = 0;
+      var newIdx = 0;
+      var nextOldFiber = null;
+      var step = newChildren.next();
+
+      for (; oldFiber !== null && !step.done; newIdx++, step = newChildren.next()) {
+        if (oldFiber.index > newIdx) {
+          nextOldFiber = oldFiber;
+          oldFiber = null;
+        } else {
+          nextOldFiber = oldFiber.sibling;
+        }
+
+        var newFiber = updateSlot(returnFiber, oldFiber, step.value, lanes);
+
+        if (newFiber === null) {
+          // TODO: This breaks on empty slots like null children. That's
+          // unfortunate because it triggers the slow path all the time. We need
+          // a better way to communicate whether this was a miss or null,
+          // boolean, undefined, etc.
+          if (oldFiber === null) {
+            oldFiber = nextOldFiber;
+          }
+
+          break;
+        }
+
+        if (shouldTrackSideEffects) {
+          if (oldFiber && newFiber.alternate === null) {
+            // We matched the slot, but we didn't reuse the existing fiber, so we
+            // need to delete the existing child.
+            deleteChild(returnFiber, oldFiber);
+          }
+        }
+
+        lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);
+
+        if (previousNewFiber === null) {
+          // TODO: Move out of the loop. This only happens for the first run.
+          resultingFirstChild = newFiber;
+        } else {
+          // TODO: Defer siblings if we're not at the right index for this slot.
+          // I.e. if we had null values before, then we want to defer this
+          // for each null value. However, we also don't want to call updateSlot
+          // with the previous one.
+          previousNewFiber.sibling = newFiber;
+        }
+
+        previousNewFiber = newFiber;
+        oldFiber = nextOldFiber;
+      }
+
+      if (step.done) {
+        // We've reached the end of the new children. We can delete the rest.
+        deleteRemainingChildren(returnFiber, oldFiber);
+        return resultingFirstChild;
+      }
+
+      if (oldFiber === null) {
+        // If we don't have any more existing children we can choose a fast path
+        // since the rest will all be insertions.
+        for (; !step.done; newIdx++, step = newChildren.next()) {
+          var _newFiber3 = createChild(returnFiber, step.value, lanes);
+
+          if (_newFiber3 === null) {
+            continue;
+          }
+
+          lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx);
+
+          if (previousNewFiber === null) {
+            // TODO: Move out of the loop. This only happens for the first run.
+            resultingFirstChild = _newFiber3;
+          } else {
+            previousNewFiber.sibling = _newFiber3;
+          }
+
+          previousNewFiber = _newFiber3;
+        }
+
+        return resultingFirstChild;
+      } // Add all children to a key map for quick lookups.
+
+
+      var existingChildren = mapRemainingChildren(returnFiber, oldFiber); // Keep scanning and use the map to restore deleted items as moves.
+
+      for (; !step.done; newIdx++, step = newChildren.next()) {
+        var _newFiber4 = updateFromMap(existingChildren, returnFiber, newIdx, step.value, lanes);
+
+        if (_newFiber4 !== null) {
+          if (shouldTrackSideEffects) {
+            if (_newFiber4.alternate !== null) {
+              // The new fiber is a work in progress, but if there exists a
+              // current, that means that we reused the fiber. We need to delete
+              // it from the child list so that we don't add it to the deletion
+              // list.
+              existingChildren.delete(_newFiber4.key === null ? newIdx : _newFiber4.key);
+            }
+          }
+
+          lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx);
+
+          if (previousNewFiber === null) {
+            resultingFirstChild = _newFiber4;
+          } else {
+            previousNewFiber.sibling = _newFiber4;
+          }
+
+          previousNewFiber = _newFiber4;
+        }
+      }
+
+      if (shouldTrackSideEffects) {
+        // Any existing children that weren't consumed above were deleted. We need
+        // to add them to the deletion list.
+        existingChildren.forEach(function (child) {
+          return deleteChild(returnFiber, child);
+        });
+      }
+
+      return resultingFirstChild;
+    }
+
+    function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, lanes) {
+      // There's no need to check for keys on text nodes since we don't have a
+      // way to define them.
+      if (currentFirstChild !== null && currentFirstChild.tag === HostText) {
+        // We already have an existing node so let's just update it and delete
+        // the rest.
+        deleteRemainingChildren(returnFiber, currentFirstChild.sibling);
+        var existing = useFiber(currentFirstChild, textContent);
+        existing.return = returnFiber;
+        return existing;
+      } // The existing first child is not a text node so we need to create one
+      // and delete the existing ones.
+
+
+      deleteRemainingChildren(returnFiber, currentFirstChild);
+      var created = createFiberFromText(textContent, returnFiber.mode, lanes);
+      created.return = returnFiber;
+      return created;
+    }
+
+    function reconcileSingleElement(returnFiber, currentFirstChild, element, lanes) {
+      var key = element.key;
+      var child = currentFirstChild;
+
+      while (child !== null) {
+        // TODO: If key === null and child.key === null, then this only applies to
+        // the first item in the list.
+        if (child.key === key) {
+          switch (child.tag) {
+            case Fragment:
+              {
+                if (element.type === REACT_FRAGMENT_TYPE) {
+                  deleteRemainingChildren(returnFiber, child.sibling);
+                  var existing = useFiber(child, element.props.children);
+                  existing.return = returnFiber;
+
+                  {
+                    existing._debugSource = element._source;
+                    existing._debugOwner = element._owner;
+                  }
+
+                  return existing;
+                }
+
+                break;
+              }
+
+            case Block:
+
+            // We intentionally fallthrough here if enableBlocksAPI is not on.
+            // eslint-disable-next-lined no-fallthrough
+
+            default:
+              {
+                if (child.elementType === element.type || ( // Keep this check inline so it only runs on the false path:
+                 isCompatibleFamilyForHotReloading(child, element) )) {
+                  deleteRemainingChildren(returnFiber, child.sibling);
+
+                  var _existing3 = useFiber(child, element.props);
+
+                  _existing3.ref = coerceRef(returnFiber, child, element);
+                  _existing3.return = returnFiber;
+
+                  {
+                    _existing3._debugSource = element._source;
+                    _existing3._debugOwner = element._owner;
+                  }
+
+                  return _existing3;
+                }
+
+                break;
+              }
+          } // Didn't match.
+
+
+          deleteRemainingChildren(returnFiber, child);
+          break;
+        } else {
+          deleteChild(returnFiber, child);
+        }
+
+        child = child.sibling;
+      }
+
+      if (element.type === REACT_FRAGMENT_TYPE) {
+        var created = createFiberFromFragment(element.props.children, returnFiber.mode, lanes, element.key);
+        created.return = returnFiber;
+        return created;
+      } else {
+        var _created4 = createFiberFromElement(element, returnFiber.mode, lanes);
+
+        _created4.ref = coerceRef(returnFiber, currentFirstChild, element);
+        _created4.return = returnFiber;
+        return _created4;
+      }
+    }
+
+    function reconcileSinglePortal(returnFiber, currentFirstChild, portal, lanes) {
+      var key = portal.key;
+      var child = currentFirstChild;
+
+      while (child !== null) {
+        // TODO: If key === null and child.key === null, then this only applies to
+        // the first item in the list.
+        if (child.key === key) {
+          if (child.tag === HostPortal && child.stateNode.containerInfo === portal.containerInfo && child.stateNode.implementation === portal.implementation) {
+            deleteRemainingChildren(returnFiber, child.sibling);
+            var existing = useFiber(child, portal.children || []);
+            existing.return = returnFiber;
+            return existing;
+          } else {
+            deleteRemainingChildren(returnFiber, child);
+            break;
+          }
+        } else {
+          deleteChild(returnFiber, child);
+        }
+
+        child = child.sibling;
+      }
+
+      var created = createFiberFromPortal(portal, returnFiber.mode, lanes);
+      created.return = returnFiber;
+      return created;
+    } // This API will tag the children with the side-effect of the reconciliation
+    // itself. They will be added to the side-effect list as we pass through the
+    // children and the parent.
+
+
+    function reconcileChildFibers(returnFiber, currentFirstChild, newChild, lanes) {
+      // This function is not recursive.
+      // If the top level item is an array, we treat it as a set of children,
+      // not as a fragment. Nested arrays on the other hand will be treated as
+      // fragment nodes. Recursion happens at the normal flow.
+      // Handle top level unkeyed fragments as if they were arrays.
+      // This leads to an ambiguity between <>{[...]}</> and <>...</>.
+      // We treat the ambiguous cases above the same.
+      var isUnkeyedTopLevelFragment = typeof newChild === 'object' && newChild !== null && newChild.type === REACT_FRAGMENT_TYPE && newChild.key === null;
+
+      if (isUnkeyedTopLevelFragment) {
+        newChild = newChild.props.children;
+      } // Handle object types
+
+
+      var isObject = typeof newChild === 'object' && newChild !== null;
+
+      if (isObject) {
+        switch (newChild.$$typeof) {
+          case REACT_ELEMENT_TYPE:
+            return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, lanes));
+
+          case REACT_PORTAL_TYPE:
+            return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, lanes));
+
+        }
+      }
+
+      if (typeof newChild === 'string' || typeof newChild === 'number') {
+        return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, lanes));
+      }
+
+      if (isArray$1(newChild)) {
+        return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, lanes);
+      }
+
+      if (getIteratorFn(newChild)) {
+        return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, lanes);
+      }
+
+      if (isObject) {
+        throwOnInvalidObjectType(returnFiber, newChild);
+      }
+
+      {
+        if (typeof newChild === 'function') {
+          warnOnFunctionType(returnFiber);
+        }
+      }
+
+      if (typeof newChild === 'undefined' && !isUnkeyedTopLevelFragment) {
+        // If the new child is undefined, and the return fiber is a composite
+        // component, throw an error. If Fiber return types are disabled,
+        // we already threw above.
+        switch (returnFiber.tag) {
+          case ClassComponent:
+            {
+              {
+                var instance = returnFiber.stateNode;
+
+                if (instance.render._isMockFunction) {
+                  // We allow auto-mocks to proceed as if they're returning null.
+                  break;
+                }
+              }
+            }
+          // Intentionally fall through to the next case, which handles both
+          // functions and classes
+          // eslint-disable-next-lined no-fallthrough
+
+          case Block:
+          case FunctionComponent:
+          case ForwardRef:
+          case SimpleMemoComponent:
+            {
+              {
+                {
+                  throw Error( (getComponentName(returnFiber.type) || 'Component') + "(...): Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null." );
+                }
+              }
+            }
+        }
+      } // Remaining cases are all treated as empty.
+
+
+      return deleteRemainingChildren(returnFiber, currentFirstChild);
+    }
+
+    return reconcileChildFibers;
+  }
+
+  var reconcileChildFibers = ChildReconciler(true);
+  var mountChildFibers = ChildReconciler(false);
+  function cloneChildFibers(current, workInProgress) {
+    if (!(current === null || workInProgress.child === current.child)) {
+      {
+        throw Error( "Resuming work not yet implemented." );
+      }
+    }
+
+    if (workInProgress.child === null) {
+      return;
+    }
+
+    var currentChild = workInProgress.child;
+    var newChild = createWorkInProgress(currentChild, currentChild.pendingProps);
+    workInProgress.child = newChild;
+    newChild.return = workInProgress;
+
+    while (currentChild.sibling !== null) {
+      currentChild = currentChild.sibling;
+      newChild = newChild.sibling = createWorkInProgress(currentChild, currentChild.pendingProps);
+      newChild.return = workInProgress;
+    }
+
+    newChild.sibling = null;
+  } // Reset a workInProgress child set to prepare it for a second pass.
+
+  function resetChildFibers(workInProgress, lanes) {
+    var child = workInProgress.child;
+
+    while (child !== null) {
+      resetWorkInProgress(child, lanes);
+      child = child.sibling;
+    }
+  }
+
+  var NO_CONTEXT = {};
+  var contextStackCursor$1 = createCursor(NO_CONTEXT);
+  var contextFiberStackCursor = createCursor(NO_CONTEXT);
+  var rootInstanceStackCursor = createCursor(NO_CONTEXT);
+
+  function requiredContext(c) {
+    if (!(c !== NO_CONTEXT)) {
+      {
+        throw Error( "Expected host context to exist. This error is likely caused by a bug in React. Please file an issue." );
+      }
+    }
+
+    return c;
+  }
+
+  function getRootHostContainer() {
+    var rootInstance = requiredContext(rootInstanceStackCursor.current);
+    return rootInstance;
+  }
+
+  function pushHostContainer(fiber, nextRootInstance) {
+    // Push current root instance onto the stack;
+    // This allows us to reset root when portals are popped.
+    push(rootInstanceStackCursor, nextRootInstance, fiber); // Track the context and the Fiber that provided it.
+    // This enables us to pop only Fibers that provide unique contexts.
+
+    push(contextFiberStackCursor, fiber, fiber); // Finally, we need to push the host context to the stack.
+    // However, we can't just call getRootHostContext() and push it because
+    // we'd have a different number of entries on the stack depending on
+    // whether getRootHostContext() throws somewhere in renderer code or not.
+    // So we push an empty value first. This lets us safely unwind on errors.
+
+    push(contextStackCursor$1, NO_CONTEXT, fiber);
+    var nextRootContext = getRootHostContext(nextRootInstance); // Now that we know this function doesn't throw, replace it.
+
+    pop(contextStackCursor$1, fiber);
+    push(contextStackCursor$1, nextRootContext, fiber);
+  }
+
+  function popHostContainer(fiber) {
+    pop(contextStackCursor$1, fiber);
+    pop(contextFiberStackCursor, fiber);
+    pop(rootInstanceStackCursor, fiber);
+  }
+
+  function getHostContext() {
+    var context = requiredContext(contextStackCursor$1.current);
+    return context;
+  }
+
+  function pushHostContext(fiber) {
+    var rootInstance = requiredContext(rootInstanceStackCursor.current);
+    var context = requiredContext(contextStackCursor$1.current);
+    var nextContext = getChildHostContext(context, fiber.type); // Don't push this Fiber's context unless it's unique.
+
+    if (context === nextContext) {
+      return;
+    } // Track the context and the Fiber that provided it.
+    // This enables us to pop only Fibers that provide unique contexts.
+
+
+    push(contextFiberStackCursor, fiber, fiber);
+    push(contextStackCursor$1, nextContext, fiber);
+  }
+
+  function popHostContext(fiber) {
+    // Do not pop unless this Fiber provided the current context.
+    // pushHostContext() only pushes Fibers that provide unique contexts.
+    if (contextFiberStackCursor.current !== fiber) {
+      return;
+    }
+
+    pop(contextStackCursor$1, fiber);
+    pop(contextFiberStackCursor, fiber);
+  }
+
+  var DefaultSuspenseContext = 0; // The Suspense Context is split into two parts. The lower bits is
+  // inherited deeply down the subtree. The upper bits only affect
+  // this immediate suspense boundary and gets reset each new
+  // boundary or suspense list.
+
+  var SubtreeSuspenseContextMask = 1; // Subtree Flags:
+  // InvisibleParentSuspenseContext indicates that one of our parent Suspense
+  // boundaries is not currently showing visible main content.
+  // Either because it is already showing a fallback or is not mounted at all.
+  // We can use this to determine if it is desirable to trigger a fallback at
+  // the parent. If not, then we might need to trigger undesirable boundaries
+  // and/or suspend the commit to avoid hiding the parent content.
+
+  var InvisibleParentSuspenseContext = 1; // Shallow Flags:
+  // ForceSuspenseFallback can be used by SuspenseList to force newly added
+  // items into their fallback state during one of the render passes.
+
+  var ForceSuspenseFallback = 2;
+  var suspenseStackCursor = createCursor(DefaultSuspenseContext);
+  function hasSuspenseContext(parentContext, flag) {
+    return (parentContext & flag) !== 0;
+  }
+  function setDefaultShallowSuspenseContext(parentContext) {
+    return parentContext & SubtreeSuspenseContextMask;
+  }
+  function setShallowSuspenseContext(parentContext, shallowContext) {
+    return parentContext & SubtreeSuspenseContextMask | shallowContext;
+  }
+  function addSubtreeSuspenseContext(parentContext, subtreeContext) {
+    return parentContext | subtreeContext;
+  }
+  function pushSuspenseContext(fiber, newContext) {
+    push(suspenseStackCursor, newContext, fiber);
+  }
+  function popSuspenseContext(fiber) {
+    pop(suspenseStackCursor, fiber);
+  }
+
+  function shouldCaptureSuspense(workInProgress, hasInvisibleParent) {
+    // If it was the primary children that just suspended, capture and render the
+    // fallback. Otherwise, don't capture and bubble to the next boundary.
+    var nextState = workInProgress.memoizedState;
+
+    if (nextState !== null) {
+      if (nextState.dehydrated !== null) {
+        // A dehydrated boundary always captures.
+        return true;
+      }
+
+      return false;
+    }
+
+    var props = workInProgress.memoizedProps; // In order to capture, the Suspense component must have a fallback prop.
+
+    if (props.fallback === undefined) {
+      return false;
+    } // Regular boundaries always capture.
+
+
+    if (props.unstable_avoidThisFallback !== true) {
+      return true;
+    } // If it's a boundary we should avoid, then we prefer to bubble up to the
+    // parent boundary if it is currently invisible.
+
+
+    if (hasInvisibleParent) {
+      return false;
+    } // If the parent is not able to handle it, we must handle it.
+
+
+    return true;
+  }
+  function findFirstSuspended(row) {
+    var node = row;
+
+    while (node !== null) {
+      if (node.tag === SuspenseComponent) {
+        var state = node.memoizedState;
+
+        if (state !== null) {
+          var dehydrated = state.dehydrated;
+
+          if (dehydrated === null || isSuspenseInstancePending(dehydrated) || isSuspenseInstanceFallback(dehydrated)) {
+            return node;
+          }
+        }
+      } else if (node.tag === SuspenseListComponent && // revealOrder undefined can't be trusted because it don't
+      // keep track of whether it suspended or not.
+      node.memoizedProps.revealOrder !== undefined) {
+        var didSuspend = (node.flags & DidCapture) !== NoFlags;
+
+        if (didSuspend) {
+          return node;
+        }
+      } else if (node.child !== null) {
+        node.child.return = node;
+        node = node.child;
+        continue;
+      }
+
+      if (node === row) {
+        return null;
+      }
+
+      while (node.sibling === null) {
+        if (node.return === null || node.return === row) {
+          return null;
+        }
+
+        node = node.return;
+      }
+
+      node.sibling.return = node.return;
+      node = node.sibling;
+    }
+
+    return null;
+  }
+
+  var NoFlags$1 =
+  /*  */
+  0; // Represents whether effect should fire.
+
+  var HasEffect =
+  /* */
+  1; // Represents the phase in which the effect (not the clean-up) fires.
+
+  var Layout =
+  /*    */
+  2;
+  var Passive$1 =
+  /*   */
+  4;
+
+  // This may have been an insertion or a hydration.
+
+  var hydrationParentFiber = null;
+  var nextHydratableInstance = null;
+  var isHydrating = false;
+
+  function enterHydrationState(fiber) {
+
+    var parentInstance = fiber.stateNode.containerInfo;
+    nextHydratableInstance = getFirstHydratableChild(parentInstance);
+    hydrationParentFiber = fiber;
+    isHydrating = true;
+    return true;
+  }
+
+  function deleteHydratableInstance(returnFiber, instance) {
+    {
+      switch (returnFiber.tag) {
+        case HostRoot:
+          didNotHydrateContainerInstance(returnFiber.stateNode.containerInfo, instance);
+          break;
+
+        case HostComponent:
+          didNotHydrateInstance(returnFiber.type, returnFiber.memoizedProps, returnFiber.stateNode, instance);
+          break;
+      }
+    }
+
+    var childToDelete = createFiberFromHostInstanceForDeletion();
+    childToDelete.stateNode = instance;
+    childToDelete.return = returnFiber;
+    childToDelete.flags = Deletion; // This might seem like it belongs on progressedFirstDeletion. However,
+    // these children are not part of the reconciliation list of children.
+    // Even if we abort and rereconcile the children, that will try to hydrate
+    // again and the nodes are still in the host tree so these will be
+    // recreated.
+
+    if (returnFiber.lastEffect !== null) {
+      returnFiber.lastEffect.nextEffect = childToDelete;
+      returnFiber.lastEffect = childToDelete;
+    } else {
+      returnFiber.firstEffect = returnFiber.lastEffect = childToDelete;
+    }
+  }
+
+  function insertNonHydratedInstance(returnFiber, fiber) {
+    fiber.flags = fiber.flags & ~Hydrating | Placement;
+
+    {
+      switch (returnFiber.tag) {
+        case HostRoot:
+          {
+            var parentContainer = returnFiber.stateNode.containerInfo;
+
+            switch (fiber.tag) {
+              case HostComponent:
+                var type = fiber.type;
+                var props = fiber.pendingProps;
+                didNotFindHydratableContainerInstance(parentContainer, type);
+                break;
+
+              case HostText:
+                var text = fiber.pendingProps;
+                didNotFindHydratableContainerTextInstance(parentContainer, text);
+                break;
+            }
+
+            break;
+          }
+
+        case HostComponent:
+          {
+            var parentType = returnFiber.type;
+            var parentProps = returnFiber.memoizedProps;
+            var parentInstance = returnFiber.stateNode;
+
+            switch (fiber.tag) {
+              case HostComponent:
+                var _type = fiber.type;
+                var _props = fiber.pendingProps;
+                didNotFindHydratableInstance(parentType, parentProps, parentInstance, _type);
+                break;
+
+              case HostText:
+                var _text = fiber.pendingProps;
+                didNotFindHydratableTextInstance(parentType, parentProps, parentInstance, _text);
+                break;
+
+              case SuspenseComponent:
+                didNotFindHydratableSuspenseInstance(parentType, parentProps);
+                break;
+            }
+
+            break;
+          }
+
+        default:
+          return;
+      }
+    }
+  }
+
+  function tryHydrate(fiber, nextInstance) {
+    switch (fiber.tag) {
+      case HostComponent:
+        {
+          var type = fiber.type;
+          var props = fiber.pendingProps;
+          var instance = canHydrateInstance(nextInstance, type);
+
+          if (instance !== null) {
+            fiber.stateNode = instance;
+            return true;
+          }
+
+          return false;
+        }
+
+      case HostText:
+        {
+          var text = fiber.pendingProps;
+          var textInstance = canHydrateTextInstance(nextInstance, text);
+
+          if (textInstance !== null) {
+            fiber.stateNode = textInstance;
+            return true;
+          }
+
+          return false;
+        }
+
+      case SuspenseComponent:
+        {
+
+          return false;
+        }
+
+      default:
+        return false;
+    }
+  }
+
+  function tryToClaimNextHydratableInstance(fiber) {
+    if (!isHydrating) {
+      return;
+    }
+
+    var nextInstance = nextHydratableInstance;
+
+    if (!nextInstance) {
+      // Nothing to hydrate. Make it an insertion.
+      insertNonHydratedInstance(hydrationParentFiber, fiber);
+      isHydrating = false;
+      hydrationParentFiber = fiber;
+      return;
+    }
+
+    var firstAttemptedInstance = nextInstance;
+
+    if (!tryHydrate(fiber, nextInstance)) {
+      // If we can't hydrate this instance let's try the next one.
+      // We use this as a heuristic. It's based on intuition and not data so it
+      // might be flawed or unnecessary.
+      nextInstance = getNextHydratableSibling(firstAttemptedInstance);
+
+      if (!nextInstance || !tryHydrate(fiber, nextInstance)) {
+        // Nothing to hydrate. Make it an insertion.
+        insertNonHydratedInstance(hydrationParentFiber, fiber);
+        isHydrating = false;
+        hydrationParentFiber = fiber;
+        return;
+      } // We matched the next one, we'll now assume that the first one was
+      // superfluous and we'll delete it. Since we can't eagerly delete it
+      // we'll have to schedule a deletion. To do that, this node needs a dummy
+      // fiber associated with it.
+
+
+      deleteHydratableInstance(hydrationParentFiber, firstAttemptedInstance);
+    }
+
+    hydrationParentFiber = fiber;
+    nextHydratableInstance = getFirstHydratableChild(nextInstance);
+  }
+
+  function prepareToHydrateHostInstance(fiber, rootContainerInstance, hostContext) {
+
+    var instance = fiber.stateNode;
+    var updatePayload = hydrateInstance(instance, fiber.type, fiber.memoizedProps, rootContainerInstance, hostContext, fiber); // TODO: Type this specific to this type of component.
+
+    fiber.updateQueue = updatePayload; // If the update payload indicates that there is a change or if there
+    // is a new ref we mark this as an update.
+
+    if (updatePayload !== null) {
+      return true;
+    }
+
+    return false;
+  }
+
+  function prepareToHydrateHostTextInstance(fiber) {
+
+    var textInstance = fiber.stateNode;
+    var textContent = fiber.memoizedProps;
+    var shouldUpdate = hydrateTextInstance(textInstance, textContent, fiber);
+
+    {
+      if (shouldUpdate) {
+        // We assume that prepareToHydrateHostTextInstance is called in a context where the
+        // hydration parent is the parent host component of this host text.
+        var returnFiber = hydrationParentFiber;
+
+        if (returnFiber !== null) {
+          switch (returnFiber.tag) {
+            case HostRoot:
+              {
+                var parentContainer = returnFiber.stateNode.containerInfo;
+                didNotMatchHydratedContainerTextInstance(parentContainer, textInstance, textContent);
+                break;
+              }
+
+            case HostComponent:
+              {
+                var parentType = returnFiber.type;
+                var parentProps = returnFiber.memoizedProps;
+                var parentInstance = returnFiber.stateNode;
+                didNotMatchHydratedTextInstance(parentType, parentProps, parentInstance, textInstance, textContent);
+                break;
+              }
+          }
+        }
+      }
+    }
+
+    return shouldUpdate;
+  }
+
+  function skipPastDehydratedSuspenseInstance(fiber) {
+
+    var suspenseState = fiber.memoizedState;
+    var suspenseInstance = suspenseState !== null ? suspenseState.dehydrated : null;
+
+    if (!suspenseInstance) {
+      {
+        throw Error( "Expected to have a hydrated suspense instance. This error is likely caused by a bug in React. Please file an issue." );
+      }
+    }
+
+    return getNextHydratableInstanceAfterSuspenseInstance(suspenseInstance);
+  }
+
+  function popToNextHostParent(fiber) {
+    var parent = fiber.return;
+
+    while (parent !== null && parent.tag !== HostComponent && parent.tag !== HostRoot && parent.tag !== SuspenseComponent) {
+      parent = parent.return;
+    }
+
+    hydrationParentFiber = parent;
+  }
+
+  function popHydrationState(fiber) {
+
+    if (fiber !== hydrationParentFiber) {
+      // We're deeper than the current hydration context, inside an inserted
+      // tree.
+      return false;
+    }
+
+    if (!isHydrating) {
+      // If we're not currently hydrating but we're in a hydration context, then
+      // we were an insertion and now need to pop up reenter hydration of our
+      // siblings.
+      popToNextHostParent(fiber);
+      isHydrating = true;
+      return false;
+    }
+
+    var type = fiber.type; // If we have any remaining hydratable nodes, we need to delete them now.
+    // We only do this deeper than head and body since they tend to have random
+    // other nodes in them. We also ignore components with pure text content in
+    // side of them.
+    // TODO: Better heuristic.
+
+    if (fiber.tag !== HostComponent || type !== 'head' && type !== 'body' && !shouldSetTextContent(type, fiber.memoizedProps)) {
+      var nextInstance = nextHydratableInstance;
+
+      while (nextInstance) {
+        deleteHydratableInstance(fiber, nextInstance);
+        nextInstance = getNextHydratableSibling(nextInstance);
+      }
+    }
+
+    popToNextHostParent(fiber);
+
+    if (fiber.tag === SuspenseComponent) {
+      nextHydratableInstance = skipPastDehydratedSuspenseInstance(fiber);
+    } else {
+      nextHydratableInstance = hydrationParentFiber ? getNextHydratableSibling(fiber.stateNode) : null;
+    }
+
+    return true;
+  }
+
+  function resetHydrationState() {
+
+    hydrationParentFiber = null;
+    nextHydratableInstance = null;
+    isHydrating = false;
+  }
+
+  function getIsHydrating() {
+    return isHydrating;
+  }
+
+  // and should be reset before starting a new render.
+  // This tracks which mutable sources need to be reset after a render.
+
+  var workInProgressSources = [];
+  var rendererSigil$1;
+
+  {
+    // Used to detect multiple renderers using the same mutable source.
+    rendererSigil$1 = {};
+  }
+
+  function markSourceAsDirty(mutableSource) {
+    workInProgressSources.push(mutableSource);
+  }
+  function resetWorkInProgressVersions() {
+    for (var i = 0; i < workInProgressSources.length; i++) {
+      var mutableSource = workInProgressSources[i];
+
+      {
+        mutableSource._workInProgressVersionPrimary = null;
+      }
+    }
+
+    workInProgressSources.length = 0;
+  }
+  function getWorkInProgressVersion(mutableSource) {
+    {
+      return mutableSource._workInProgressVersionPrimary;
+    }
+  }
+  function setWorkInProgressVersion(mutableSource, version) {
+    {
+      mutableSource._workInProgressVersionPrimary = version;
+    }
+
+    workInProgressSources.push(mutableSource);
+  }
+  function warnAboutMultipleRenderersDEV(mutableSource) {
+    {
+      {
+        if (mutableSource._currentPrimaryRenderer == null) {
+          mutableSource._currentPrimaryRenderer = rendererSigil$1;
+        } else if (mutableSource._currentPrimaryRenderer !== rendererSigil$1) {
+          error('Detected multiple renderers concurrently rendering the ' + 'same mutable source. This is currently unsupported.');
+        }
+      }
+    }
+  } // Eager reads the version of a mutable source and stores it on the root.
+
+  var ReactCurrentDispatcher$1 = ReactSharedInternals.ReactCurrentDispatcher,
+      ReactCurrentBatchConfig$1 = ReactSharedInternals.ReactCurrentBatchConfig;
+  var didWarnAboutMismatchedHooksForComponent;
+  var didWarnAboutUseOpaqueIdentifier;
+
+  {
+    didWarnAboutUseOpaqueIdentifier = {};
+    didWarnAboutMismatchedHooksForComponent = new Set();
+  }
+
+  // These are set right before calling the component.
+  var renderLanes = NoLanes; // The work-in-progress fiber. I've named it differently to distinguish it from
+  // the work-in-progress hook.
+
+  var currentlyRenderingFiber$1 = null; // Hooks are stored as a linked list on the fiber's memoizedState field. The
+  // current hook list is the list that belongs to the current fiber. The
+  // work-in-progress hook list is a new list that will be added to the
+  // work-in-progress fiber.
+
+  var currentHook = null;
+  var workInProgressHook = null; // Whether an update was scheduled at any point during the render phase. This
+  // does not get reset if we do another render pass; only when we're completely
+  // finished evaluating this component. This is an optimization so we know
+  // whether we need to clear render phase updates after a throw.
+
+  var didScheduleRenderPhaseUpdate = false; // Where an update was scheduled only during the current render pass. This
+  // gets reset after each attempt.
+  // TODO: Maybe there's some way to consolidate this with
+  // `didScheduleRenderPhaseUpdate`. Or with `numberOfReRenders`.
+
+  var didScheduleRenderPhaseUpdateDuringThisPass = false;
+  var RE_RENDER_LIMIT = 25; // In DEV, this is the name of the currently executing primitive hook
+
+  var currentHookNameInDev = null; // In DEV, this list ensures that hooks are called in the same order between renders.
+  // The list stores the order of hooks used during the initial render (mount).
+  // Subsequent renders (updates) reference this list.
+
+  var hookTypesDev = null;
+  var hookTypesUpdateIndexDev = -1; // In DEV, this tracks whether currently rendering component needs to ignore
+  // the dependencies for Hooks that need them (e.g. useEffect or useMemo).
+  // When true, such Hooks will always be "remounted". Only used during hot reload.
+
+  var ignorePreviousDependencies = false;
+
+  function mountHookTypesDev() {
+    {
+      var hookName = currentHookNameInDev;
+
+      if (hookTypesDev === null) {
+        hookTypesDev = [hookName];
+      } else {
+        hookTypesDev.push(hookName);
+      }
+    }
+  }
+
+  function updateHookTypesDev() {
+    {
+      var hookName = currentHookNameInDev;
+
+      if (hookTypesDev !== null) {
+        hookTypesUpdateIndexDev++;
+
+        if (hookTypesDev[hookTypesUpdateIndexDev] !== hookName) {
+          warnOnHookMismatchInDev(hookName);
+        }
+      }
+    }
+  }
+
+  function checkDepsAreArrayDev(deps) {
+    {
+      if (deps !== undefined && deps !== null && !Array.isArray(deps)) {
+        // Verify deps, but only on mount to avoid extra checks.
+        // It's unlikely their type would change as usually you define them inline.
+        error('%s received a final argument that is not an array (instead, received `%s`). When ' + 'specified, the final argument must be an array.', currentHookNameInDev, typeof deps);
+      }
+    }
+  }
+
+  function warnOnHookMismatchInDev(currentHookName) {
+    {
+      var componentName = getComponentName(currentlyRenderingFiber$1.type);
+
+      if (!didWarnAboutMismatchedHooksForComponent.has(componentName)) {
+        didWarnAboutMismatchedHooksForComponent.add(componentName);
+
+        if (hookTypesDev !== null) {
+          var table = '';
+          var secondColumnStart = 30;
+
+          for (var i = 0; i <= hookTypesUpdateIndexDev; i++) {
+            var oldHookName = hookTypesDev[i];
+            var newHookName = i === hookTypesUpdateIndexDev ? currentHookName : oldHookName;
+            var row = i + 1 + ". " + oldHookName; // Extra space so second column lines up
+            // lol @ IE not supporting String#repeat
+
+            while (row.length < secondColumnStart) {
+              row += ' ';
+            }
+
+            row += newHookName + '\n';
+            table += row;
+          }
+
+          error('React has detected a change in the order of Hooks called by %s. ' + 'This will lead to bugs and errors if not fixed. ' + 'For more information, read the Rules of Hooks: https://reactjs.org/link/rules-of-hooks\n\n' + '   Previous render            Next render\n' + '   ------------------------------------------------------\n' + '%s' + '   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n', componentName, table);
+        }
+      }
+    }
+  }
+
+  function throwInvalidHookError() {
+    {
+      {
+        throw Error( "Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:\n1. You might have mismatching versions of React and the renderer (such as React DOM)\n2. You might be breaking the Rules of Hooks\n3. You might have more than one copy of React in the same app\nSee https://reactjs.org/link/invalid-hook-call for tips about how to debug and fix this problem." );
+      }
+    }
+  }
+
+  function areHookInputsEqual(nextDeps, prevDeps) {
+    {
+      if (ignorePreviousDependencies) {
+        // Only true when this component is being hot reloaded.
+        return false;
+      }
+    }
+
+    if (prevDeps === null) {
+      {
+        error('%s received a final argument during this render, but not during ' + 'the previous render. Even though the final argument is optional, ' + 'its type cannot change between renders.', currentHookNameInDev);
+      }
+
+      return false;
+    }
+
+    {
+      // Don't bother comparing lengths in prod because these arrays should be
+      // passed inline.
+      if (nextDeps.length !== prevDeps.length) {
+        error('The final argument passed to %s changed size between renders. The ' + 'order and size of this array must remain constant.\n\n' + 'Previous: %s\n' + 'Incoming: %s', currentHookNameInDev, "[" + prevDeps.join(', ') + "]", "[" + nextDeps.join(', ') + "]");
+      }
+    }
+
+    for (var i = 0; i < prevDeps.length && i < nextDeps.length; i++) {
+      if (objectIs(nextDeps[i], prevDeps[i])) {
+        continue;
+      }
+
+      return false;
+    }
+
+    return true;
+  }
+
+  function renderWithHooks(current, workInProgress, Component, props, secondArg, nextRenderLanes) {
+    renderLanes = nextRenderLanes;
+    currentlyRenderingFiber$1 = workInProgress;
+
+    {
+      hookTypesDev = current !== null ? current._debugHookTypes : null;
+      hookTypesUpdateIndexDev = -1; // Used for hot reloading:
+
+      ignorePreviousDependencies = current !== null && current.type !== workInProgress.type;
+    }
+
+    workInProgress.memoizedState = null;
+    workInProgress.updateQueue = null;
+    workInProgress.lanes = NoLanes; // The following should have already been reset
+    // currentHook = null;
+    // workInProgressHook = null;
+    // didScheduleRenderPhaseUpdate = false;
+    // TODO Warn if no hooks are used at all during mount, then some are used during update.
+    // Currently we will identify the update render as a mount because memoizedState === null.
+    // This is tricky because it's valid for certain types of components (e.g. React.lazy)
+    // Using memoizedState to differentiate between mount/update only works if at least one stateful hook is used.
+    // Non-stateful hooks (e.g. context) don't get added to memoizedState,
+    // so memoizedState would be null during updates and mounts.
+
+    {
+      if (current !== null && current.memoizedState !== null) {
+        ReactCurrentDispatcher$1.current = HooksDispatcherOnUpdateInDEV;
+      } else if (hookTypesDev !== null) {
+        // This dispatcher handles an edge case where a component is updating,
+        // but no stateful hooks have been used.
+        // We want to match the production code behavior (which will use HooksDispatcherOnMount),
+        // but with the extra DEV validation to ensure hooks ordering hasn't changed.
+        // This dispatcher does that.
+        ReactCurrentDispatcher$1.current = HooksDispatcherOnMountWithHookTypesInDEV;
+      } else {
+        ReactCurrentDispatcher$1.current = HooksDispatcherOnMountInDEV;
+      }
+    }
+
+    var children = Component(props, secondArg); // Check if there was a render phase update
+
+    if (didScheduleRenderPhaseUpdateDuringThisPass) {
+      // Keep rendering in a loop for as long as render phase updates continue to
+      // be scheduled. Use a counter to prevent infinite loops.
+      var numberOfReRenders = 0;
+
+      do {
+        didScheduleRenderPhaseUpdateDuringThisPass = false;
+
+        if (!(numberOfReRenders < RE_RENDER_LIMIT)) {
+          {
+            throw Error( "Too many re-renders. React limits the number of renders to prevent an infinite loop." );
+          }
+        }
+
+        numberOfReRenders += 1;
+
+        {
+          // Even when hot reloading, allow dependencies to stabilize
+          // after first render to prevent infinite render phase updates.
+          ignorePreviousDependencies = false;
+        } // Start over from the beginning of the list
+
+
+        currentHook = null;
+        workInProgressHook = null;
+        workInProgress.updateQueue = null;
+
+        {
+          // Also validate hook order for cascading updates.
+          hookTypesUpdateIndexDev = -1;
+        }
+
+        ReactCurrentDispatcher$1.current =  HooksDispatcherOnRerenderInDEV ;
+        children = Component(props, secondArg);
+      } while (didScheduleRenderPhaseUpdateDuringThisPass);
+    } // We can assume the previous dispatcher is always this one, since we set it
+    // at the beginning of the render phase and there's no re-entrancy.
+
+
+    ReactCurrentDispatcher$1.current = ContextOnlyDispatcher;
+
+    {
+      workInProgress._debugHookTypes = hookTypesDev;
+    } // This check uses currentHook so that it works the same in DEV and prod bundles.
+    // hookTypesDev could catch more cases (e.g. context) but only in DEV bundles.
+
+
+    var didRenderTooFewHooks = currentHook !== null && currentHook.next !== null;
+    renderLanes = NoLanes;
+    currentlyRenderingFiber$1 = null;
+    currentHook = null;
+    workInProgressHook = null;
+
+    {
+      currentHookNameInDev = null;
+      hookTypesDev = null;
+      hookTypesUpdateIndexDev = -1;
+    }
+
+    didScheduleRenderPhaseUpdate = false;
+
+    if (!!didRenderTooFewHooks) {
+      {
+        throw Error( "Rendered fewer hooks than expected. This may be caused by an accidental early return statement." );
+      }
+    }
+
+    return children;
+  }
+  function bailoutHooks(current, workInProgress, lanes) {
+    workInProgress.updateQueue = current.updateQueue;
+    workInProgress.flags &= ~(Passive | Update);
+    current.lanes = removeLanes(current.lanes, lanes);
+  }
+  function resetHooksAfterThrow() {
+    // We can assume the previous dispatcher is always this one, since we set it
+    // at the beginning of the render phase and there's no re-entrancy.
+    ReactCurrentDispatcher$1.current = ContextOnlyDispatcher;
+
+    if (didScheduleRenderPhaseUpdate) {
+      // There were render phase updates. These are only valid for this render
+      // phase, which we are now aborting. Remove the updates from the queues so
+      // they do not persist to the next render. Do not remove updates from hooks
+      // that weren't processed.
+      //
+      // Only reset the updates from the queue if it has a clone. If it does
+      // not have a clone, that means it wasn't processed, and the updates were
+      // scheduled before we entered the render phase.
+      var hook = currentlyRenderingFiber$1.memoizedState;
+
+      while (hook !== null) {
+        var queue = hook.queue;
+
+        if (queue !== null) {
+          queue.pending = null;
+        }
+
+        hook = hook.next;
+      }
+
+      didScheduleRenderPhaseUpdate = false;
+    }
+
+    renderLanes = NoLanes;
+    currentlyRenderingFiber$1 = null;
+    currentHook = null;
+    workInProgressHook = null;
+
+    {
+      hookTypesDev = null;
+      hookTypesUpdateIndexDev = -1;
+      currentHookNameInDev = null;
+      isUpdatingOpaqueValueInRenderPhase = false;
+    }
+
+    didScheduleRenderPhaseUpdateDuringThisPass = false;
+  }
+
+  function mountWorkInProgressHook() {
+    var hook = {
+      memoizedState: null,
+      baseState: null,
+      baseQueue: null,
+      queue: null,
+      next: null
+    };
+
+    if (workInProgressHook === null) {
+      // This is the first hook in the list
+      currentlyRenderingFiber$1.memoizedState = workInProgressHook = hook;
+    } else {
+      // Append to the end of the list
+      workInProgressHook = workInProgressHook.next = hook;
+    }
+
+    return workInProgressHook;
+  }
+
+  function updateWorkInProgressHook() {
+    // This function is used both for updates and for re-renders triggered by a
+    // render phase update. It assumes there is either a current hook we can
+    // clone, or a work-in-progress hook from a previous render pass that we can
+    // use as a base. When we reach the end of the base list, we must switch to
+    // the dispatcher used for mounts.
+    var nextCurrentHook;
+
+    if (currentHook === null) {
+      var current = currentlyRenderingFiber$1.alternate;
+
+      if (current !== null) {
+        nextCurrentHook = current.memoizedState;
+      } else {
+        nextCurrentHook = null;
+      }
+    } else {
+      nextCurrentHook = currentHook.next;
+    }
+
+    var nextWorkInProgressHook;
+
+    if (workInProgressHook === null) {
+      nextWorkInProgressHook = currentlyRenderingFiber$1.memoizedState;
+    } else {
+      nextWorkInProgressHook = workInProgressHook.next;
+    }
+
+    if (nextWorkInProgressHook !== null) {
+      // There's already a work-in-progress. Reuse it.
+      workInProgressHook = nextWorkInProgressHook;
+      nextWorkInProgressHook = workInProgressHook.next;
+      currentHook = nextCurrentHook;
+    } else {
+      // Clone from the current hook.
+      if (!(nextCurrentHook !== null)) {
+        {
+          throw Error( "Rendered more hooks than during the previous render." );
+        }
+      }
+
+      currentHook = nextCurrentHook;
+      var newHook = {
+        memoizedState: currentHook.memoizedState,
+        baseState: currentHook.baseState,
+        baseQueue: currentHook.baseQueue,
+        queue: currentHook.queue,
+        next: null
+      };
+
+      if (workInProgressHook === null) {
+        // This is the first hook in the list.
+        currentlyRenderingFiber$1.memoizedState = workInProgressHook = newHook;
+      } else {
+        // Append to the end of the list.
+        workInProgressHook = workInProgressHook.next = newHook;
+      }
+    }
+
+    return workInProgressHook;
+  }
+
+  function createFunctionComponentUpdateQueue() {
+    return {
+      lastEffect: null
+    };
+  }
+
+  function basicStateReducer(state, action) {
+    // $FlowFixMe: Flow doesn't like mixed types
+    return typeof action === 'function' ? action(state) : action;
+  }
+
+  function mountReducer(reducer, initialArg, init) {
+    var hook = mountWorkInProgressHook();
+    var initialState;
+
+    if (init !== undefined) {
+      initialState = init(initialArg);
+    } else {
+      initialState = initialArg;
+    }
+
+    hook.memoizedState = hook.baseState = initialState;
+    var queue = hook.queue = {
+      pending: null,
+      dispatch: null,
+      lastRenderedReducer: reducer,
+      lastRenderedState: initialState
+    };
+    var dispatch = queue.dispatch = dispatchAction.bind(null, currentlyRenderingFiber$1, queue);
+    return [hook.memoizedState, dispatch];
+  }
+
+  function updateReducer(reducer, initialArg, init) {
+    var hook = updateWorkInProgressHook();
+    var queue = hook.queue;
+
+    if (!(queue !== null)) {
+      {
+        throw Error( "Should have a queue. This is likely a bug in React. Please file an issue." );
+      }
+    }
+
+    queue.lastRenderedReducer = reducer;
+    var current = currentHook; // The last rebase update that is NOT part of the base state.
+
+    var baseQueue = current.baseQueue; // The last pending update that hasn't been processed yet.
+
+    var pendingQueue = queue.pending;
+
+    if (pendingQueue !== null) {
+      // We have new updates that haven't been processed yet.
+      // We'll add them to the base queue.
+      if (baseQueue !== null) {
+        // Merge the pending queue and the base queue.
+        var baseFirst = baseQueue.next;
+        var pendingFirst = pendingQueue.next;
+        baseQueue.next = pendingFirst;
+        pendingQueue.next = baseFirst;
+      }
+
+      {
+        if (current.baseQueue !== baseQueue) {
+          // Internal invariant that should never happen, but feasibly could in
+          // the future if we implement resuming, or some form of that.
+          error('Internal error: Expected work-in-progress queue to be a clone. ' + 'This is a bug in React.');
+        }
+      }
+
+      current.baseQueue = baseQueue = pendingQueue;
+      queue.pending = null;
+    }
+
+    if (baseQueue !== null) {
+      // We have a queue to process.
+      var first = baseQueue.next;
+      var newState = current.baseState;
+      var newBaseState = null;
+      var newBaseQueueFirst = null;
+      var newBaseQueueLast = null;
+      var update = first;
+
+      do {
+        var updateLane = update.lane;
+
+        if (!isSubsetOfLanes(renderLanes, updateLane)) {
+          // Priority is insufficient. Skip this update. If this is the first
+          // skipped update, the previous update/state is the new base
+          // update/state.
+          var clone = {
+            lane: updateLane,
+            action: update.action,
+            eagerReducer: update.eagerReducer,
+            eagerState: update.eagerState,
+            next: null
+          };
+
+          if (newBaseQueueLast === null) {
+            newBaseQueueFirst = newBaseQueueLast = clone;
+            newBaseState = newState;
+          } else {
+            newBaseQueueLast = newBaseQueueLast.next = clone;
+          } // Update the remaining priority in the queue.
+          // TODO: Don't need to accumulate this. Instead, we can remove
+          // renderLanes from the original lanes.
+
+
+          currentlyRenderingFiber$1.lanes = mergeLanes(currentlyRenderingFiber$1.lanes, updateLane);
+          markSkippedUpdateLanes(updateLane);
+        } else {
+          // This update does have sufficient priority.
+          if (newBaseQueueLast !== null) {
+            var _clone = {
+              // This update is going to be committed so we never want uncommit
+              // it. Using NoLane works because 0 is a subset of all bitmasks, so
+              // this will never be skipped by the check above.
+              lane: NoLane,
+              action: update.action,
+              eagerReducer: update.eagerReducer,
+              eagerState: update.eagerState,
+              next: null
+            };
+            newBaseQueueLast = newBaseQueueLast.next = _clone;
+          } // Process this update.
+
+
+          if (update.eagerReducer === reducer) {
+            // If this update was processed eagerly, and its reducer matches the
+            // current reducer, we can use the eagerly computed state.
+            newState = update.eagerState;
+          } else {
+            var action = update.action;
+            newState = reducer(newState, action);
+          }
+        }
+
+        update = update.next;
+      } while (update !== null && update !== first);
+
+      if (newBaseQueueLast === null) {
+        newBaseState = newState;
+      } else {
+        newBaseQueueLast.next = newBaseQueueFirst;
+      } // Mark that the fiber performed work, but only if the new state is
+      // different from the current state.
+
+
+      if (!objectIs(newState, hook.memoizedState)) {
+        markWorkInProgressReceivedUpdate();
+      }
+
+      hook.memoizedState = newState;
+      hook.baseState = newBaseState;
+      hook.baseQueue = newBaseQueueLast;
+      queue.lastRenderedState = newState;
+    }
+
+    var dispatch = queue.dispatch;
+    return [hook.memoizedState, dispatch];
+  }
+
+  function rerenderReducer(reducer, initialArg, init) {
+    var hook = updateWorkInProgressHook();
+    var queue = hook.queue;
+
+    if (!(queue !== null)) {
+      {
+        throw Error( "Should have a queue. This is likely a bug in React. Please file an issue." );
+      }
+    }
+
+    queue.lastRenderedReducer = reducer; // This is a re-render. Apply the new render phase updates to the previous
+    // work-in-progress hook.
+
+    var dispatch = queue.dispatch;
+    var lastRenderPhaseUpdate = queue.pending;
+    var newState = hook.memoizedState;
+
+    if (lastRenderPhaseUpdate !== null) {
+      // The queue doesn't persist past this render pass.
+      queue.pending = null;
+      var firstRenderPhaseUpdate = lastRenderPhaseUpdate.next;
+      var update = firstRenderPhaseUpdate;
+
+      do {
+        // Process this render phase update. We don't have to check the
+        // priority because it will always be the same as the current
+        // render's.
+        var action = update.action;
+        newState = reducer(newState, action);
+        update = update.next;
+      } while (update !== firstRenderPhaseUpdate); // Mark that the fiber performed work, but only if the new state is
+      // different from the current state.
+
+
+      if (!objectIs(newState, hook.memoizedState)) {
+        markWorkInProgressReceivedUpdate();
+      }
+
+      hook.memoizedState = newState; // Don't persist the state accumulated from the render phase updates to
+      // the base state unless the queue is empty.
+      // TODO: Not sure if this is the desired semantics, but it's what we
+      // do for gDSFP. I can't remember why.
+
+      if (hook.baseQueue === null) {
+        hook.baseState = newState;
+      }
+
+      queue.lastRenderedState = newState;
+    }
+
+    return [newState, dispatch];
+  }
+
+  function readFromUnsubcribedMutableSource(root, source, getSnapshot) {
+    {
+      warnAboutMultipleRenderersDEV(source);
+    }
+
+    var getVersion = source._getVersion;
+    var version = getVersion(source._source); // Is it safe for this component to read from this source during the current render?
+
+    var isSafeToReadFromSource = false; // Check the version first.
+    // If this render has already been started with a specific version,
+    // we can use it alone to determine if we can safely read from the source.
+
+    var currentRenderVersion = getWorkInProgressVersion(source);
+
+    if (currentRenderVersion !== null) {
+      // It's safe to read if the store hasn't been mutated since the last time
+      // we read something.
+      isSafeToReadFromSource = currentRenderVersion === version;
+    } else {
+      // If there's no version, then this is the first time we've read from the
+      // source during the current render pass, so we need to do a bit more work.
+      // What we need to determine is if there are any hooks that already
+      // subscribed to the source, and if so, whether there are any pending
+      // mutations that haven't been synchronized yet.
+      //
+      // If there are no pending mutations, then `root.mutableReadLanes` will be
+      // empty, and we know we can safely read.
+      //
+      // If there *are* pending mutations, we may still be able to safely read
+      // if the currently rendering lanes are inclusive of the pending mutation
+      // lanes, since that guarantees that the value we're about to read from
+      // the source is consistent with the values that we read during the most
+      // recent mutation.
+      isSafeToReadFromSource = isSubsetOfLanes(renderLanes, root.mutableReadLanes);
+
+      if (isSafeToReadFromSource) {
+        // If it's safe to read from this source during the current render,
+        // store the version in case other components read from it.
+        // A changed version number will let those components know to throw and restart the render.
+        setWorkInProgressVersion(source, version);
+      }
+    }
+
+    if (isSafeToReadFromSource) {
+      var snapshot = getSnapshot(source._source);
+
+      {
+        if (typeof snapshot === 'function') {
+          error('Mutable source should not return a function as the snapshot value. ' + 'Functions may close over mutable values and cause tearing.');
+        }
+      }
+
+      return snapshot;
+    } else {
+      // This handles the special case of a mutable source being shared between renderers.
+      // In that case, if the source is mutated between the first and second renderer,
+      // The second renderer don't know that it needs to reset the WIP version during unwind,
+      // (because the hook only marks sources as dirty if it's written to their WIP version).
+      // That would cause this tear check to throw again and eventually be visible to the user.
+      // We can avoid this infinite loop by explicitly marking the source as dirty.
+      //
+      // This can lead to tearing in the first renderer when it resumes,
+      // but there's nothing we can do about that (short of throwing here and refusing to continue the render).
+      markSourceAsDirty(source);
+
+      {
+        {
+          throw Error( "Cannot read from mutable source during the current render without tearing. This is a bug in React. Please file an issue." );
+        }
+      }
+    }
+  }
+
+  function useMutableSource(hook, source, getSnapshot, subscribe) {
+    var root = getWorkInProgressRoot();
+
+    if (!(root !== null)) {
+      {
+        throw Error( "Expected a work-in-progress root. This is a bug in React. Please file an issue." );
+      }
+    }
+
+    var getVersion = source._getVersion;
+    var version = getVersion(source._source);
+    var dispatcher = ReactCurrentDispatcher$1.current; // eslint-disable-next-line prefer-const
+
+    var _dispatcher$useState = dispatcher.useState(function () {
+      return readFromUnsubcribedMutableSource(root, source, getSnapshot);
+    }),
+        currentSnapshot = _dispatcher$useState[0],
+        setSnapshot = _dispatcher$useState[1];
+
+    var snapshot = currentSnapshot; // Grab a handle to the state hook as well.
+    // We use it to clear the pending update queue if we have a new source.
+
+    var stateHook = workInProgressHook;
+    var memoizedState = hook.memoizedState;
+    var refs = memoizedState.refs;
+    var prevGetSnapshot = refs.getSnapshot;
+    var prevSource = memoizedState.source;
+    var prevSubscribe = memoizedState.subscribe;
+    var fiber = currentlyRenderingFiber$1;
+    hook.memoizedState = {
+      refs: refs,
+      source: source,
+      subscribe: subscribe
+    }; // Sync the values needed by our subscription handler after each commit.
+
+    dispatcher.useEffect(function () {
+      refs.getSnapshot = getSnapshot; // Normally the dispatch function for a state hook never changes,
+      // but this hook recreates the queue in certain cases  to avoid updates from stale sources.
+      // handleChange() below needs to reference the dispatch function without re-subscribing,
+      // so we use a ref to ensure that it always has the latest version.
+
+      refs.setSnapshot = setSnapshot; // Check for a possible change between when we last rendered now.
+
+      var maybeNewVersion = getVersion(source._source);
+
+      if (!objectIs(version, maybeNewVersion)) {
+        var maybeNewSnapshot = getSnapshot(source._source);
+
+        {
+          if (typeof maybeNewSnapshot === 'function') {
+            error('Mutable source should not return a function as the snapshot value. ' + 'Functions may close over mutable values and cause tearing.');
+          }
+        }
+
+        if (!objectIs(snapshot, maybeNewSnapshot)) {
+          setSnapshot(maybeNewSnapshot);
+          var lane = requestUpdateLane(fiber);
+          markRootMutableRead(root, lane);
+        } // If the source mutated between render and now,
+        // there may be state updates already scheduled from the old source.
+        // Entangle the updates so that they render in the same batch.
+
+
+        markRootEntangled(root, root.mutableReadLanes);
+      }
+    }, [getSnapshot, source, subscribe]); // If we got a new source or subscribe function, re-subscribe in a passive effect.
+
+    dispatcher.useEffect(function () {
+      var handleChange = function () {
+        var latestGetSnapshot = refs.getSnapshot;
+        var latestSetSnapshot = refs.setSnapshot;
+
+        try {
+          latestSetSnapshot(latestGetSnapshot(source._source)); // Record a pending mutable source update with the same expiration time.
+
+          var lane = requestUpdateLane(fiber);
+          markRootMutableRead(root, lane);
+        } catch (error) {
+          // A selector might throw after a source mutation.
+          // e.g. it might try to read from a part of the store that no longer exists.
+          // In this case we should still schedule an update with React.
+          // Worst case the selector will throw again and then an error boundary will handle it.
+          latestSetSnapshot(function () {
+            throw error;
+          });
+        }
+      };
+
+      var unsubscribe = subscribe(source._source, handleChange);
+
+      {
+        if (typeof unsubscribe !== 'function') {
+          error('Mutable source subscribe function must return an unsubscribe function.');
+        }
+      }
+
+      return unsubscribe;
+    }, [source, subscribe]); // If any of the inputs to useMutableSource change, reading is potentially unsafe.
+    //
+    // If either the source or the subscription have changed we can't can't trust the update queue.
+    // Maybe the source changed in a way that the old subscription ignored but the new one depends on.
+    //
+    // If the getSnapshot function changed, we also shouldn't rely on the update queue.
+    // It's possible that the underlying source was mutated between the when the last "change" event fired,
+    // and when the current render (with the new getSnapshot function) is processed.
+    //
+    // In both cases, we need to throw away pending updates (since they are no longer relevant)
+    // and treat reading from the source as we do in the mount case.
+
+    if (!objectIs(prevGetSnapshot, getSnapshot) || !objectIs(prevSource, source) || !objectIs(prevSubscribe, subscribe)) {
+      // Create a new queue and setState method,
+      // So if there are interleaved updates, they get pushed to the older queue.
+      // When this becomes current, the previous queue and dispatch method will be discarded,
+      // including any interleaving updates that occur.
+      var newQueue = {
+        pending: null,
+        dispatch: null,
+        lastRenderedReducer: basicStateReducer,
+        lastRenderedState: snapshot
+      };
+      newQueue.dispatch = setSnapshot = dispatchAction.bind(null, currentlyRenderingFiber$1, newQueue);
+      stateHook.queue = newQueue;
+      stateHook.baseQueue = null;
+      snapshot = readFromUnsubcribedMutableSource(root, source, getSnapshot);
+      stateHook.memoizedState = stateHook.baseState = snapshot;
+    }
+
+    return snapshot;
+  }
+
+  function mountMutableSource(source, getSnapshot, subscribe) {
+    var hook = mountWorkInProgressHook();
+    hook.memoizedState = {
+      refs: {
+        getSnapshot: getSnapshot,
+        setSnapshot: null
+      },
+      source: source,
+      subscribe: subscribe
+    };
+    return useMutableSource(hook, source, getSnapshot, subscribe);
+  }
+
+  function updateMutableSource(source, getSnapshot, subscribe) {
+    var hook = updateWorkInProgressHook();
+    return useMutableSource(hook, source, getSnapshot, subscribe);
+  }
+
+  function mountState(initialState) {
+    var hook = mountWorkInProgressHook();
+
+    if (typeof initialState === 'function') {
+      // $FlowFixMe: Flow doesn't like mixed types
+      initialState = initialState();
+    }
+
+    hook.memoizedState = hook.baseState = initialState;
+    var queue = hook.queue = {
+      pending: null,
+      dispatch: null,
+      lastRenderedReducer: basicStateReducer,
+      lastRenderedState: initialState
+    };
+    var dispatch = queue.dispatch = dispatchAction.bind(null, currentlyRenderingFiber$1, queue);
+    return [hook.memoizedState, dispatch];
+  }
+
+  function updateState(initialState) {
+    return updateReducer(basicStateReducer);
+  }
+
+  function rerenderState(initialState) {
+    return rerenderReducer(basicStateReducer);
+  }
+
+  function pushEffect(tag, create, destroy, deps) {
+    var effect = {
+      tag: tag,
+      create: create,
+      destroy: destroy,
+      deps: deps,
+      // Circular
+      next: null
+    };
+    var componentUpdateQueue = currentlyRenderingFiber$1.updateQueue;
+
+    if (componentUpdateQueue === null) {
+      componentUpdateQueue = createFunctionComponentUpdateQueue();
+      currentlyRenderingFiber$1.updateQueue = componentUpdateQueue;
+      componentUpdateQueue.lastEffect = effect.next = effect;
+    } else {
+      var lastEffect = componentUpdateQueue.lastEffect;
+
+      if (lastEffect === null) {
+        componentUpdateQueue.lastEffect = effect.next = effect;
+      } else {
+        var firstEffect = lastEffect.next;
+        lastEffect.next = effect;
+        effect.next = firstEffect;
+        componentUpdateQueue.lastEffect = effect;
+      }
+    }
+
+    return effect;
+  }
+
+  function mountRef(initialValue) {
+    var hook = mountWorkInProgressHook();
+    var ref = {
+      current: initialValue
+    };
+
+    {
+      Object.seal(ref);
+    }
+
+    hook.memoizedState = ref;
+    return ref;
+  }
+
+  function updateRef(initialValue) {
+    var hook = updateWorkInProgressHook();
+    return hook.memoizedState;
+  }
+
+  function mountEffectImpl(fiberFlags, hookFlags, create, deps) {
+    var hook = mountWorkInProgressHook();
+    var nextDeps = deps === undefined ? null : deps;
+    currentlyRenderingFiber$1.flags |= fiberFlags;
+    hook.memoizedState = pushEffect(HasEffect | hookFlags, create, undefined, nextDeps);
+  }
+
+  function updateEffectImpl(fiberFlags, hookFlags, create, deps) {
+    var hook = updateWorkInProgressHook();
+    var nextDeps = deps === undefined ? null : deps;
+    var destroy = undefined;
+
+    if (currentHook !== null) {
+      var prevEffect = currentHook.memoizedState;
+      destroy = prevEffect.destroy;
+
+      if (nextDeps !== null) {
+        var prevDeps = prevEffect.deps;
+
+        if (areHookInputsEqual(nextDeps, prevDeps)) {
+          pushEffect(hookFlags, create, destroy, nextDeps);
+          return;
+        }
+      }
+    }
+
+    currentlyRenderingFiber$1.flags |= fiberFlags;
+    hook.memoizedState = pushEffect(HasEffect | hookFlags, create, destroy, nextDeps);
+  }
+
+  function mountEffect(create, deps) {
+    {
+      // $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
+      if ('undefined' !== typeof jest) {
+        warnIfNotCurrentlyActingEffectsInDEV(currentlyRenderingFiber$1);
+      }
+    }
+
+    return mountEffectImpl(Update | Passive, Passive$1, create, deps);
+  }
+
+  function updateEffect(create, deps) {
+    {
+      // $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
+      if ('undefined' !== typeof jest) {
+        warnIfNotCurrentlyActingEffectsInDEV(currentlyRenderingFiber$1);
+      }
+    }
+
+    return updateEffectImpl(Update | Passive, Passive$1, create, deps);
+  }
+
+  function mountLayoutEffect(create, deps) {
+    return mountEffectImpl(Update, Layout, create, deps);
+  }
+
+  function updateLayoutEffect(create, deps) {
+    return updateEffectImpl(Update, Layout, create, deps);
+  }
+
+  function imperativeHandleEffect(create, ref) {
+    if (typeof ref === 'function') {
+      var refCallback = ref;
+
+      var _inst = create();
+
+      refCallback(_inst);
+      return function () {
+        refCallback(null);
+      };
+    } else if (ref !== null && ref !== undefined) {
+      var refObject = ref;
+
+      {
+        if (!refObject.hasOwnProperty('current')) {
+          error('Expected useImperativeHandle() first argument to either be a ' + 'ref callback or React.createRef() object. Instead received: %s.', 'an object with keys {' + Object.keys(refObject).join(', ') + '}');
+        }
+      }
+
+      var _inst2 = create();
+
+      refObject.current = _inst2;
+      return function () {
+        refObject.current = null;
+      };
+    }
+  }
+
+  function mountImperativeHandle(ref, create, deps) {
+    {
+      if (typeof create !== 'function') {
+        error('Expected useImperativeHandle() second argument to be a function ' + 'that creates a handle. Instead received: %s.', create !== null ? typeof create : 'null');
+      }
+    } // TODO: If deps are provided, should we skip comparing the ref itself?
+
+
+    var effectDeps = deps !== null && deps !== undefined ? deps.concat([ref]) : null;
+    return mountEffectImpl(Update, Layout, imperativeHandleEffect.bind(null, create, ref), effectDeps);
+  }
+
+  function updateImperativeHandle(ref, create, deps) {
+    {
+      if (typeof create !== 'function') {
+        error('Expected useImperativeHandle() second argument to be a function ' + 'that creates a handle. Instead received: %s.', create !== null ? typeof create : 'null');
+      }
+    } // TODO: If deps are provided, should we skip comparing the ref itself?
+
+
+    var effectDeps = deps !== null && deps !== undefined ? deps.concat([ref]) : null;
+    return updateEffectImpl(Update, Layout, imperativeHandleEffect.bind(null, create, ref), effectDeps);
+  }
+
+  function mountDebugValue(value, formatterFn) {// This hook is normally a no-op.
+    // The react-debug-hooks package injects its own implementation
+    // so that e.g. DevTools can display custom hook values.
+  }
+
+  var updateDebugValue = mountDebugValue;
+
+  function mountCallback(callback, deps) {
+    var hook = mountWorkInProgressHook();
+    var nextDeps = deps === undefined ? null : deps;
+    hook.memoizedState = [callback, nextDeps];
+    return callback;
+  }
+
+  function updateCallback(callback, deps) {
+    var hook = updateWorkInProgressHook();
+    var nextDeps = deps === undefined ? null : deps;
+    var prevState = hook.memoizedState;
+
+    if (prevState !== null) {
+      if (nextDeps !== null) {
+        var prevDeps = prevState[1];
+
+        if (areHookInputsEqual(nextDeps, prevDeps)) {
+          return prevState[0];
+        }
+      }
+    }
+
+    hook.memoizedState = [callback, nextDeps];
+    return callback;
+  }
+
+  function mountMemo(nextCreate, deps) {
+    var hook = mountWorkInProgressHook();
+    var nextDeps = deps === undefined ? null : deps;
+    var nextValue = nextCreate();
+    hook.memoizedState = [nextValue, nextDeps];
+    return nextValue;
+  }
+
+  function updateMemo(nextCreate, deps) {
+    var hook = updateWorkInProgressHook();
+    var nextDeps = deps === undefined ? null : deps;
+    var prevState = hook.memoizedState;
+
+    if (prevState !== null) {
+      // Assume these are defined. If they're not, areHookInputsEqual will warn.
+      if (nextDeps !== null) {
+        var prevDeps = prevState[1];
+
+        if (areHookInputsEqual(nextDeps, prevDeps)) {
+          return prevState[0];
+        }
+      }
+    }
+
+    var nextValue = nextCreate();
+    hook.memoizedState = [nextValue, nextDeps];
+    return nextValue;
+  }
+
+  function mountDeferredValue(value) {
+    var _mountState = mountState(value),
+        prevValue = _mountState[0],
+        setValue = _mountState[1];
+
+    mountEffect(function () {
+      var prevTransition = ReactCurrentBatchConfig$1.transition;
+      ReactCurrentBatchConfig$1.transition = 1;
+
+      try {
+        setValue(value);
+      } finally {
+        ReactCurrentBatchConfig$1.transition = prevTransition;
+      }
+    }, [value]);
+    return prevValue;
+  }
+
+  function updateDeferredValue(value) {
+    var _updateState = updateState(),
+        prevValue = _updateState[0],
+        setValue = _updateState[1];
+
+    updateEffect(function () {
+      var prevTransition = ReactCurrentBatchConfig$1.transition;
+      ReactCurrentBatchConfig$1.transition = 1;
+
+      try {
+        setValue(value);
+      } finally {
+        ReactCurrentBatchConfig$1.transition = prevTransition;
+      }
+    }, [value]);
+    return prevValue;
+  }
+
+  function rerenderDeferredValue(value) {
+    var _rerenderState = rerenderState(),
+        prevValue = _rerenderState[0],
+        setValue = _rerenderState[1];
+
+    updateEffect(function () {
+      var prevTransition = ReactCurrentBatchConfig$1.transition;
+      ReactCurrentBatchConfig$1.transition = 1;
+
+      try {
+        setValue(value);
+      } finally {
+        ReactCurrentBatchConfig$1.transition = prevTransition;
+      }
+    }, [value]);
+    return prevValue;
+  }
+
+  function startTransition(setPending, callback) {
+    var priorityLevel = getCurrentPriorityLevel();
+
+    {
+      runWithPriority$1(priorityLevel < UserBlockingPriority$2 ? UserBlockingPriority$2 : priorityLevel, function () {
+        setPending(true);
+      });
+      runWithPriority$1(priorityLevel > NormalPriority$1 ? NormalPriority$1 : priorityLevel, function () {
+        var prevTransition = ReactCurrentBatchConfig$1.transition;
+        ReactCurrentBatchConfig$1.transition = 1;
+
+        try {
+          setPending(false);
+          callback();
+        } finally {
+          ReactCurrentBatchConfig$1.transition = prevTransition;
+        }
+      });
+    }
+  }
+
+  function mountTransition() {
+    var _mountState2 = mountState(false),
+        isPending = _mountState2[0],
+        setPending = _mountState2[1]; // The `start` method can be stored on a ref, since `setPending`
+    // never changes.
+
+
+    var start = startTransition.bind(null, setPending);
+    mountRef(start);
+    return [start, isPending];
+  }
+
+  function updateTransition() {
+    var _updateState2 = updateState(),
+        isPending = _updateState2[0];
+
+    var startRef = updateRef();
+    var start = startRef.current;
+    return [start, isPending];
+  }
+
+  function rerenderTransition() {
+    var _rerenderState2 = rerenderState(),
+        isPending = _rerenderState2[0];
+
+    var startRef = updateRef();
+    var start = startRef.current;
+    return [start, isPending];
+  }
+
+  var isUpdatingOpaqueValueInRenderPhase = false;
+  function getIsUpdatingOpaqueValueInRenderPhaseInDEV() {
+    {
+      return isUpdatingOpaqueValueInRenderPhase;
+    }
+  }
+
+  function warnOnOpaqueIdentifierAccessInDEV(fiber) {
+    {
+      // TODO: Should warn in effects and callbacks, too
+      var name = getComponentName(fiber.type) || 'Unknown';
+
+      if (getIsRendering() && !didWarnAboutUseOpaqueIdentifier[name]) {
+        error('The object passed back from useOpaqueIdentifier is meant to be ' + 'passed through to attributes only. Do not read the ' + 'value directly.');
+
+        didWarnAboutUseOpaqueIdentifier[name] = true;
+      }
+    }
+  }
+
+  function mountOpaqueIdentifier() {
+    var makeId =  makeClientIdInDEV.bind(null, warnOnOpaqueIdentifierAccessInDEV.bind(null, currentlyRenderingFiber$1)) ;
+
+    if (getIsHydrating()) {
+      var didUpgrade = false;
+      var fiber = currentlyRenderingFiber$1;
+
+      var readValue = function () {
+        if (!didUpgrade) {
+          // Only upgrade once. This works even inside the render phase because
+          // the update is added to a shared queue, which outlasts the
+          // in-progress render.
+          didUpgrade = true;
+
+          {
+            isUpdatingOpaqueValueInRenderPhase = true;
+            setId(makeId());
+            isUpdatingOpaqueValueInRenderPhase = false;
+            warnOnOpaqueIdentifierAccessInDEV(fiber);
+          }
+        }
+
+        {
+          {
+            throw Error( "The object passed back from useOpaqueIdentifier is meant to be passed through to attributes only. Do not read the value directly." );
+          }
+        }
+      };
+
+      var id = makeOpaqueHydratingObject(readValue);
+      var setId = mountState(id)[1];
+
+      if ((currentlyRenderingFiber$1.mode & BlockingMode) === NoMode) {
+        currentlyRenderingFiber$1.flags |= Update | Passive;
+        pushEffect(HasEffect | Passive$1, function () {
+          setId(makeId());
+        }, undefined, null);
+      }
+
+      return id;
+    } else {
+      var _id = makeId();
+
+      mountState(_id);
+      return _id;
+    }
+  }
+
+  function updateOpaqueIdentifier() {
+    var id = updateState()[0];
+    return id;
+  }
+
+  function rerenderOpaqueIdentifier() {
+    var id = rerenderState()[0];
+    return id;
+  }
+
+  function dispatchAction(fiber, queue, action) {
+    {
+      if (typeof arguments[3] === 'function') {
+        error("State updates from the useState() and useReducer() Hooks don't support the " + 'second callback argument. To execute a side effect after ' + 'rendering, declare it in the component body with useEffect().');
+      }
+    }
+
+    var eventTime = requestEventTime();
+    var lane = requestUpdateLane(fiber);
+    var update = {
+      lane: lane,
+      action: action,
+      eagerReducer: null,
+      eagerState: null,
+      next: null
+    }; // Append the update to the end of the list.
+
+    var pending = queue.pending;
+
+    if (pending === null) {
+      // This is the first update. Create a circular list.
+      update.next = update;
+    } else {
+      update.next = pending.next;
+      pending.next = update;
+    }
+
+    queue.pending = update;
+    var alternate = fiber.alternate;
+
+    if (fiber === currentlyRenderingFiber$1 || alternate !== null && alternate === currentlyRenderingFiber$1) {
+      // This is a render phase update. Stash it in a lazily-created map of
+      // queue -> linked list of updates. After this render pass, we'll restart
+      // and apply the stashed updates on top of the work-in-progress hook.
+      didScheduleRenderPhaseUpdateDuringThisPass = didScheduleRenderPhaseUpdate = true;
+    } else {
+      if (fiber.lanes === NoLanes && (alternate === null || alternate.lanes === NoLanes)) {
+        // The queue is currently empty, which means we can eagerly compute the
+        // next state before entering the render phase. If the new state is the
+        // same as the current state, we may be able to bail out entirely.
+        var lastRenderedReducer = queue.lastRenderedReducer;
+
+        if (lastRenderedReducer !== null) {
+          var prevDispatcher;
+
+          {
+            prevDispatcher = ReactCurrentDispatcher$1.current;
+            ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
+          }
+
+          try {
+            var currentState = queue.lastRenderedState;
+            var eagerState = lastRenderedReducer(currentState, action); // Stash the eagerly computed state, and the reducer used to compute
+            // it, on the update object. If the reducer hasn't changed by the
+            // time we enter the render phase, then the eager state can be used
+            // without calling the reducer again.
+
+            update.eagerReducer = lastRenderedReducer;
+            update.eagerState = eagerState;
+
+            if (objectIs(eagerState, currentState)) {
+              // Fast path. We can bail out without scheduling React to re-render.
+              // It's still possible that we'll need to rebase this update later,
+              // if the component re-renders for a different reason and by that
+              // time the reducer has changed.
+              return;
+            }
+          } catch (error) {// Suppress the error. It will throw again in the render phase.
+          } finally {
+            {
+              ReactCurrentDispatcher$1.current = prevDispatcher;
+            }
+          }
+        }
+      }
+
+      {
+        // $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
+        if ('undefined' !== typeof jest) {
+          warnIfNotScopedWithMatchingAct(fiber);
+          warnIfNotCurrentlyActingUpdatesInDev(fiber);
+        }
+      }
+
+      scheduleUpdateOnFiber(fiber, lane, eventTime);
+    }
+  }
+
+  var ContextOnlyDispatcher = {
+    readContext: readContext,
+    useCallback: throwInvalidHookError,
+    useContext: throwInvalidHookError,
+    useEffect: throwInvalidHookError,
+    useImperativeHandle: throwInvalidHookError,
+    useLayoutEffect: throwInvalidHookError,
+    useMemo: throwInvalidHookError,
+    useReducer: throwInvalidHookError,
+    useRef: throwInvalidHookError,
+    useState: throwInvalidHookError,
+    useDebugValue: throwInvalidHookError,
+    useDeferredValue: throwInvalidHookError,
+    useTransition: throwInvalidHookError,
+    useMutableSource: throwInvalidHookError,
+    useOpaqueIdentifier: throwInvalidHookError,
+    unstable_isNewReconciler: enableNewReconciler
+  };
+  var HooksDispatcherOnMountInDEV = null;
+  var HooksDispatcherOnMountWithHookTypesInDEV = null;
+  var HooksDispatcherOnUpdateInDEV = null;
+  var HooksDispatcherOnRerenderInDEV = null;
+  var InvalidNestedHooksDispatcherOnMountInDEV = null;
+  var InvalidNestedHooksDispatcherOnUpdateInDEV = null;
+  var InvalidNestedHooksDispatcherOnRerenderInDEV = null;
+
+  {
+    var warnInvalidContextAccess = function () {
+      error('Context can only be read while React is rendering. ' + 'In classes, you can read it in the render method or getDerivedStateFromProps. ' + 'In function components, you can read it directly in the function body, but not ' + 'inside Hooks like useReducer() or useMemo().');
+    };
+
+    var warnInvalidHookAccess = function () {
+      error('Do not call Hooks inside useEffect(...), useMemo(...), or other built-in Hooks. ' + 'You can only call Hooks at the top level of your React function. ' + 'For more information, see ' + 'https://reactjs.org/link/rules-of-hooks');
+    };
+
+    HooksDispatcherOnMountInDEV = {
+      readContext: function (context, observedBits) {
+        return readContext(context, observedBits);
+      },
+      useCallback: function (callback, deps) {
+        currentHookNameInDev = 'useCallback';
+        mountHookTypesDev();
+        checkDepsAreArrayDev(deps);
+        return mountCallback(callback, deps);
+      },
+      useContext: function (context, observedBits) {
+        currentHookNameInDev = 'useContext';
+        mountHookTypesDev();
+        return readContext(context, observedBits);
+      },
+      useEffect: function (create, deps) {
+        currentHookNameInDev = 'useEffect';
+        mountHookTypesDev();
+        checkDepsAreArrayDev(deps);
+        return mountEffect(create, deps);
+      },
+      useImperativeHandle: function (ref, create, deps) {
+        currentHookNameInDev = 'useImperativeHandle';
+        mountHookTypesDev();
+        checkDepsAreArrayDev(deps);
+        return mountImperativeHandle(ref, create, deps);
+      },
+      useLayoutEffect: function (create, deps) {
+        currentHookNameInDev = 'useLayoutEffect';
+        mountHookTypesDev();
+        checkDepsAreArrayDev(deps);
+        return mountLayoutEffect(create, deps);
+      },
+      useMemo: function (create, deps) {
+        currentHookNameInDev = 'useMemo';
+        mountHookTypesDev();
+        checkDepsAreArrayDev(deps);
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
+
+        try {
+          return mountMemo(create, deps);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useReducer: function (reducer, initialArg, init) {
+        currentHookNameInDev = 'useReducer';
+        mountHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
+
+        try {
+          return mountReducer(reducer, initialArg, init);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useRef: function (initialValue) {
+        currentHookNameInDev = 'useRef';
+        mountHookTypesDev();
+        return mountRef(initialValue);
+      },
+      useState: function (initialState) {
+        currentHookNameInDev = 'useState';
+        mountHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
+
+        try {
+          return mountState(initialState);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useDebugValue: function (value, formatterFn) {
+        currentHookNameInDev = 'useDebugValue';
+        mountHookTypesDev();
+        return mountDebugValue();
+      },
+      useDeferredValue: function (value) {
+        currentHookNameInDev = 'useDeferredValue';
+        mountHookTypesDev();
+        return mountDeferredValue(value);
+      },
+      useTransition: function () {
+        currentHookNameInDev = 'useTransition';
+        mountHookTypesDev();
+        return mountTransition();
+      },
+      useMutableSource: function (source, getSnapshot, subscribe) {
+        currentHookNameInDev = 'useMutableSource';
+        mountHookTypesDev();
+        return mountMutableSource(source, getSnapshot, subscribe);
+      },
+      useOpaqueIdentifier: function () {
+        currentHookNameInDev = 'useOpaqueIdentifier';
+        mountHookTypesDev();
+        return mountOpaqueIdentifier();
+      },
+      unstable_isNewReconciler: enableNewReconciler
+    };
+    HooksDispatcherOnMountWithHookTypesInDEV = {
+      readContext: function (context, observedBits) {
+        return readContext(context, observedBits);
+      },
+      useCallback: function (callback, deps) {
+        currentHookNameInDev = 'useCallback';
+        updateHookTypesDev();
+        return mountCallback(callback, deps);
+      },
+      useContext: function (context, observedBits) {
+        currentHookNameInDev = 'useContext';
+        updateHookTypesDev();
+        return readContext(context, observedBits);
+      },
+      useEffect: function (create, deps) {
+        currentHookNameInDev = 'useEffect';
+        updateHookTypesDev();
+        return mountEffect(create, deps);
+      },
+      useImperativeHandle: function (ref, create, deps) {
+        currentHookNameInDev = 'useImperativeHandle';
+        updateHookTypesDev();
+        return mountImperativeHandle(ref, create, deps);
+      },
+      useLayoutEffect: function (create, deps) {
+        currentHookNameInDev = 'useLayoutEffect';
+        updateHookTypesDev();
+        return mountLayoutEffect(create, deps);
+      },
+      useMemo: function (create, deps) {
+        currentHookNameInDev = 'useMemo';
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
+
+        try {
+          return mountMemo(create, deps);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useReducer: function (reducer, initialArg, init) {
+        currentHookNameInDev = 'useReducer';
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
+
+        try {
+          return mountReducer(reducer, initialArg, init);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useRef: function (initialValue) {
+        currentHookNameInDev = 'useRef';
+        updateHookTypesDev();
+        return mountRef(initialValue);
+      },
+      useState: function (initialState) {
+        currentHookNameInDev = 'useState';
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
+
+        try {
+          return mountState(initialState);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useDebugValue: function (value, formatterFn) {
+        currentHookNameInDev = 'useDebugValue';
+        updateHookTypesDev();
+        return mountDebugValue();
+      },
+      useDeferredValue: function (value) {
+        currentHookNameInDev = 'useDeferredValue';
+        updateHookTypesDev();
+        return mountDeferredValue(value);
+      },
+      useTransition: function () {
+        currentHookNameInDev = 'useTransition';
+        updateHookTypesDev();
+        return mountTransition();
+      },
+      useMutableSource: function (source, getSnapshot, subscribe) {
+        currentHookNameInDev = 'useMutableSource';
+        updateHookTypesDev();
+        return mountMutableSource(source, getSnapshot, subscribe);
+      },
+      useOpaqueIdentifier: function () {
+        currentHookNameInDev = 'useOpaqueIdentifier';
+        updateHookTypesDev();
+        return mountOpaqueIdentifier();
+      },
+      unstable_isNewReconciler: enableNewReconciler
+    };
+    HooksDispatcherOnUpdateInDEV = {
+      readContext: function (context, observedBits) {
+        return readContext(context, observedBits);
+      },
+      useCallback: function (callback, deps) {
+        currentHookNameInDev = 'useCallback';
+        updateHookTypesDev();
+        return updateCallback(callback, deps);
+      },
+      useContext: function (context, observedBits) {
+        currentHookNameInDev = 'useContext';
+        updateHookTypesDev();
+        return readContext(context, observedBits);
+      },
+      useEffect: function (create, deps) {
+        currentHookNameInDev = 'useEffect';
+        updateHookTypesDev();
+        return updateEffect(create, deps);
+      },
+      useImperativeHandle: function (ref, create, deps) {
+        currentHookNameInDev = 'useImperativeHandle';
+        updateHookTypesDev();
+        return updateImperativeHandle(ref, create, deps);
+      },
+      useLayoutEffect: function (create, deps) {
+        currentHookNameInDev = 'useLayoutEffect';
+        updateHookTypesDev();
+        return updateLayoutEffect(create, deps);
+      },
+      useMemo: function (create, deps) {
+        currentHookNameInDev = 'useMemo';
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
+
+        try {
+          return updateMemo(create, deps);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useReducer: function (reducer, initialArg, init) {
+        currentHookNameInDev = 'useReducer';
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
+
+        try {
+          return updateReducer(reducer, initialArg, init);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useRef: function (initialValue) {
+        currentHookNameInDev = 'useRef';
+        updateHookTypesDev();
+        return updateRef();
+      },
+      useState: function (initialState) {
+        currentHookNameInDev = 'useState';
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
+
+        try {
+          return updateState(initialState);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useDebugValue: function (value, formatterFn) {
+        currentHookNameInDev = 'useDebugValue';
+        updateHookTypesDev();
+        return updateDebugValue();
+      },
+      useDeferredValue: function (value) {
+        currentHookNameInDev = 'useDeferredValue';
+        updateHookTypesDev();
+        return updateDeferredValue(value);
+      },
+      useTransition: function () {
+        currentHookNameInDev = 'useTransition';
+        updateHookTypesDev();
+        return updateTransition();
+      },
+      useMutableSource: function (source, getSnapshot, subscribe) {
+        currentHookNameInDev = 'useMutableSource';
+        updateHookTypesDev();
+        return updateMutableSource(source, getSnapshot, subscribe);
+      },
+      useOpaqueIdentifier: function () {
+        currentHookNameInDev = 'useOpaqueIdentifier';
+        updateHookTypesDev();
+        return updateOpaqueIdentifier();
+      },
+      unstable_isNewReconciler: enableNewReconciler
+    };
+    HooksDispatcherOnRerenderInDEV = {
+      readContext: function (context, observedBits) {
+        return readContext(context, observedBits);
+      },
+      useCallback: function (callback, deps) {
+        currentHookNameInDev = 'useCallback';
+        updateHookTypesDev();
+        return updateCallback(callback, deps);
+      },
+      useContext: function (context, observedBits) {
+        currentHookNameInDev = 'useContext';
+        updateHookTypesDev();
+        return readContext(context, observedBits);
+      },
+      useEffect: function (create, deps) {
+        currentHookNameInDev = 'useEffect';
+        updateHookTypesDev();
+        return updateEffect(create, deps);
+      },
+      useImperativeHandle: function (ref, create, deps) {
+        currentHookNameInDev = 'useImperativeHandle';
+        updateHookTypesDev();
+        return updateImperativeHandle(ref, create, deps);
+      },
+      useLayoutEffect: function (create, deps) {
+        currentHookNameInDev = 'useLayoutEffect';
+        updateHookTypesDev();
+        return updateLayoutEffect(create, deps);
+      },
+      useMemo: function (create, deps) {
+        currentHookNameInDev = 'useMemo';
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnRerenderInDEV;
+
+        try {
+          return updateMemo(create, deps);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useReducer: function (reducer, initialArg, init) {
+        currentHookNameInDev = 'useReducer';
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnRerenderInDEV;
+
+        try {
+          return rerenderReducer(reducer, initialArg, init);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useRef: function (initialValue) {
+        currentHookNameInDev = 'useRef';
+        updateHookTypesDev();
+        return updateRef();
+      },
+      useState: function (initialState) {
+        currentHookNameInDev = 'useState';
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnRerenderInDEV;
+
+        try {
+          return rerenderState(initialState);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useDebugValue: function (value, formatterFn) {
+        currentHookNameInDev = 'useDebugValue';
+        updateHookTypesDev();
+        return updateDebugValue();
+      },
+      useDeferredValue: function (value) {
+        currentHookNameInDev = 'useDeferredValue';
+        updateHookTypesDev();
+        return rerenderDeferredValue(value);
+      },
+      useTransition: function () {
+        currentHookNameInDev = 'useTransition';
+        updateHookTypesDev();
+        return rerenderTransition();
+      },
+      useMutableSource: function (source, getSnapshot, subscribe) {
+        currentHookNameInDev = 'useMutableSource';
+        updateHookTypesDev();
+        return updateMutableSource(source, getSnapshot, subscribe);
+      },
+      useOpaqueIdentifier: function () {
+        currentHookNameInDev = 'useOpaqueIdentifier';
+        updateHookTypesDev();
+        return rerenderOpaqueIdentifier();
+      },
+      unstable_isNewReconciler: enableNewReconciler
+    };
+    InvalidNestedHooksDispatcherOnMountInDEV = {
+      readContext: function (context, observedBits) {
+        warnInvalidContextAccess();
+        return readContext(context, observedBits);
+      },
+      useCallback: function (callback, deps) {
+        currentHookNameInDev = 'useCallback';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        return mountCallback(callback, deps);
+      },
+      useContext: function (context, observedBits) {
+        currentHookNameInDev = 'useContext';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        return readContext(context, observedBits);
+      },
+      useEffect: function (create, deps) {
+        currentHookNameInDev = 'useEffect';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        return mountEffect(create, deps);
+      },
+      useImperativeHandle: function (ref, create, deps) {
+        currentHookNameInDev = 'useImperativeHandle';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        return mountImperativeHandle(ref, create, deps);
+      },
+      useLayoutEffect: function (create, deps) {
+        currentHookNameInDev = 'useLayoutEffect';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        return mountLayoutEffect(create, deps);
+      },
+      useMemo: function (create, deps) {
+        currentHookNameInDev = 'useMemo';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
+
+        try {
+          return mountMemo(create, deps);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useReducer: function (reducer, initialArg, init) {
+        currentHookNameInDev = 'useReducer';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
+
+        try {
+          return mountReducer(reducer, initialArg, init);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useRef: function (initialValue) {
+        currentHookNameInDev = 'useRef';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        return mountRef(initialValue);
+      },
+      useState: function (initialState) {
+        currentHookNameInDev = 'useState';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
+
+        try {
+          return mountState(initialState);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useDebugValue: function (value, formatterFn) {
+        currentHookNameInDev = 'useDebugValue';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        return mountDebugValue();
+      },
+      useDeferredValue: function (value) {
+        currentHookNameInDev = 'useDeferredValue';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        return mountDeferredValue(value);
+      },
+      useTransition: function () {
+        currentHookNameInDev = 'useTransition';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        return mountTransition();
+      },
+      useMutableSource: function (source, getSnapshot, subscribe) {
+        currentHookNameInDev = 'useMutableSource';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        return mountMutableSource(source, getSnapshot, subscribe);
+      },
+      useOpaqueIdentifier: function () {
+        currentHookNameInDev = 'useOpaqueIdentifier';
+        warnInvalidHookAccess();
+        mountHookTypesDev();
+        return mountOpaqueIdentifier();
+      },
+      unstable_isNewReconciler: enableNewReconciler
+    };
+    InvalidNestedHooksDispatcherOnUpdateInDEV = {
+      readContext: function (context, observedBits) {
+        warnInvalidContextAccess();
+        return readContext(context, observedBits);
+      },
+      useCallback: function (callback, deps) {
+        currentHookNameInDev = 'useCallback';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateCallback(callback, deps);
+      },
+      useContext: function (context, observedBits) {
+        currentHookNameInDev = 'useContext';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return readContext(context, observedBits);
+      },
+      useEffect: function (create, deps) {
+        currentHookNameInDev = 'useEffect';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateEffect(create, deps);
+      },
+      useImperativeHandle: function (ref, create, deps) {
+        currentHookNameInDev = 'useImperativeHandle';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateImperativeHandle(ref, create, deps);
+      },
+      useLayoutEffect: function (create, deps) {
+        currentHookNameInDev = 'useLayoutEffect';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateLayoutEffect(create, deps);
+      },
+      useMemo: function (create, deps) {
+        currentHookNameInDev = 'useMemo';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
+
+        try {
+          return updateMemo(create, deps);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useReducer: function (reducer, initialArg, init) {
+        currentHookNameInDev = 'useReducer';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
+
+        try {
+          return updateReducer(reducer, initialArg, init);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useRef: function (initialValue) {
+        currentHookNameInDev = 'useRef';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateRef();
+      },
+      useState: function (initialState) {
+        currentHookNameInDev = 'useState';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
+
+        try {
+          return updateState(initialState);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useDebugValue: function (value, formatterFn) {
+        currentHookNameInDev = 'useDebugValue';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateDebugValue();
+      },
+      useDeferredValue: function (value) {
+        currentHookNameInDev = 'useDeferredValue';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateDeferredValue(value);
+      },
+      useTransition: function () {
+        currentHookNameInDev = 'useTransition';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateTransition();
+      },
+      useMutableSource: function (source, getSnapshot, subscribe) {
+        currentHookNameInDev = 'useMutableSource';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateMutableSource(source, getSnapshot, subscribe);
+      },
+      useOpaqueIdentifier: function () {
+        currentHookNameInDev = 'useOpaqueIdentifier';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateOpaqueIdentifier();
+      },
+      unstable_isNewReconciler: enableNewReconciler
+    };
+    InvalidNestedHooksDispatcherOnRerenderInDEV = {
+      readContext: function (context, observedBits) {
+        warnInvalidContextAccess();
+        return readContext(context, observedBits);
+      },
+      useCallback: function (callback, deps) {
+        currentHookNameInDev = 'useCallback';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateCallback(callback, deps);
+      },
+      useContext: function (context, observedBits) {
+        currentHookNameInDev = 'useContext';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return readContext(context, observedBits);
+      },
+      useEffect: function (create, deps) {
+        currentHookNameInDev = 'useEffect';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateEffect(create, deps);
+      },
+      useImperativeHandle: function (ref, create, deps) {
+        currentHookNameInDev = 'useImperativeHandle';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateImperativeHandle(ref, create, deps);
+      },
+      useLayoutEffect: function (create, deps) {
+        currentHookNameInDev = 'useLayoutEffect';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateLayoutEffect(create, deps);
+      },
+      useMemo: function (create, deps) {
+        currentHookNameInDev = 'useMemo';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
+
+        try {
+          return updateMemo(create, deps);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useReducer: function (reducer, initialArg, init) {
+        currentHookNameInDev = 'useReducer';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
+
+        try {
+          return rerenderReducer(reducer, initialArg, init);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useRef: function (initialValue) {
+        currentHookNameInDev = 'useRef';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateRef();
+      },
+      useState: function (initialState) {
+        currentHookNameInDev = 'useState';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        var prevDispatcher = ReactCurrentDispatcher$1.current;
+        ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
+
+        try {
+          return rerenderState(initialState);
+        } finally {
+          ReactCurrentDispatcher$1.current = prevDispatcher;
+        }
+      },
+      useDebugValue: function (value, formatterFn) {
+        currentHookNameInDev = 'useDebugValue';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateDebugValue();
+      },
+      useDeferredValue: function (value) {
+        currentHookNameInDev = 'useDeferredValue';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return rerenderDeferredValue(value);
+      },
+      useTransition: function () {
+        currentHookNameInDev = 'useTransition';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return rerenderTransition();
+      },
+      useMutableSource: function (source, getSnapshot, subscribe) {
+        currentHookNameInDev = 'useMutableSource';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return updateMutableSource(source, getSnapshot, subscribe);
+      },
+      useOpaqueIdentifier: function () {
+        currentHookNameInDev = 'useOpaqueIdentifier';
+        warnInvalidHookAccess();
+        updateHookTypesDev();
+        return rerenderOpaqueIdentifier();
+      },
+      unstable_isNewReconciler: enableNewReconciler
+    };
+  }
+
+  var now$1 = unstable_now;
+  var commitTime = 0;
+  var profilerStartTime = -1;
+
+  function getCommitTime() {
+    return commitTime;
+  }
+
+  function recordCommitTime() {
+
+    commitTime = now$1();
+  }
+
+  function startProfilerTimer(fiber) {
+
+    profilerStartTime = now$1();
+
+    if (fiber.actualStartTime < 0) {
+      fiber.actualStartTime = now$1();
+    }
+  }
+
+  function stopProfilerTimerIfRunning(fiber) {
+
+    profilerStartTime = -1;
+  }
+
+  function stopProfilerTimerIfRunningAndRecordDelta(fiber, overrideBaseTime) {
+
+    if (profilerStartTime >= 0) {
+      var elapsedTime = now$1() - profilerStartTime;
+      fiber.actualDuration += elapsedTime;
+
+      if (overrideBaseTime) {
+        fiber.selfBaseDuration = elapsedTime;
+      }
+
+      profilerStartTime = -1;
+    }
+  }
+
+  function transferActualDuration(fiber) {
+    // Transfer time spent rendering these children so we don't lose it
+    // after we rerender. This is used as a helper in special cases
+    // where we should count the work of multiple passes.
+    var child = fiber.child;
+
+    while (child) {
+      fiber.actualDuration += child.actualDuration;
+      child = child.sibling;
+    }
+  }
+
+  var ReactCurrentOwner$1 = ReactSharedInternals.ReactCurrentOwner;
+  var didReceiveUpdate = false;
+  var didWarnAboutBadClass;
+  var didWarnAboutModulePatternComponent;
+  var didWarnAboutContextTypeOnFunctionComponent;
+  var didWarnAboutGetDerivedStateOnFunctionComponent;
+  var didWarnAboutFunctionRefs;
+  var didWarnAboutReassigningProps;
+  var didWarnAboutRevealOrder;
+  var didWarnAboutTailOptions;
+
+  {
+    didWarnAboutBadClass = {};
+    didWarnAboutModulePatternComponent = {};
+    didWarnAboutContextTypeOnFunctionComponent = {};
+    didWarnAboutGetDerivedStateOnFunctionComponent = {};
+    didWarnAboutFunctionRefs = {};
+    didWarnAboutReassigningProps = false;
+    didWarnAboutRevealOrder = {};
+    didWarnAboutTailOptions = {};
+  }
+
+  function reconcileChildren(current, workInProgress, nextChildren, renderLanes) {
+    if (current === null) {
+      // If this is a fresh new component that hasn't been rendered yet, we
+      // won't update its child set by applying minimal side-effects. Instead,
+      // we will add them all to the child before it gets rendered. That means
+      // we can optimize this reconciliation pass by not tracking side-effects.
+      workInProgress.child = mountChildFibers(workInProgress, null, nextChildren, renderLanes);
+    } else {
+      // If the current child is the same as the work in progress, it means that
+      // we haven't yet started any work on these children. Therefore, we use
+      // the clone algorithm to create a copy of all the current children.
+      // If we had any progressed work already, that is invalid at this point so
+      // let's throw it out.
+      workInProgress.child = reconcileChildFibers(workInProgress, current.child, nextChildren, renderLanes);
+    }
+  }
+
+  function forceUnmountCurrentAndReconcile(current, workInProgress, nextChildren, renderLanes) {
+    // This function is fork of reconcileChildren. It's used in cases where we
+    // want to reconcile without matching against the existing set. This has the
+    // effect of all current children being unmounted; even if the type and key
+    // are the same, the old child is unmounted and a new child is created.
+    //
+    // To do this, we're going to go through the reconcile algorithm twice. In
+    // the first pass, we schedule a deletion for all the current children by
+    // passing null.
+    workInProgress.child = reconcileChildFibers(workInProgress, current.child, null, renderLanes); // In the second pass, we mount the new children. The trick here is that we
+    // pass null in place of where we usually pass the current child set. This has
+    // the effect of remounting all children regardless of whether their
+    // identities match.
+
+    workInProgress.child = reconcileChildFibers(workInProgress, null, nextChildren, renderLanes);
+  }
+
+  function updateForwardRef(current, workInProgress, Component, nextProps, renderLanes) {
+    // TODO: current can be non-null here even if the component
+    // hasn't yet mounted. This happens after the first render suspends.
+    // We'll need to figure out if this is fine or can cause issues.
+    {
+      if (workInProgress.type !== workInProgress.elementType) {
+        // Lazy component props can't be validated in createElement
+        // because they're only guaranteed to be resolved here.
+        var innerPropTypes = Component.propTypes;
+
+        if (innerPropTypes) {
+          checkPropTypes(innerPropTypes, nextProps, // Resolved props
+          'prop', getComponentName(Component));
+        }
+      }
+    }
+
+    var render = Component.render;
+    var ref = workInProgress.ref; // The rest is a fork of updateFunctionComponent
+
+    var nextChildren;
+    prepareToReadContext(workInProgress, renderLanes);
+
+    {
+      ReactCurrentOwner$1.current = workInProgress;
+      setIsRendering(true);
+      nextChildren = renderWithHooks(current, workInProgress, render, nextProps, ref, renderLanes);
+
+      if ( workInProgress.mode & StrictMode) {
+        disableLogs();
+
+        try {
+          nextChildren = renderWithHooks(current, workInProgress, render, nextProps, ref, renderLanes);
+        } finally {
+          reenableLogs();
+        }
+      }
+
+      setIsRendering(false);
+    }
+
+    if (current !== null && !didReceiveUpdate) {
+      bailoutHooks(current, workInProgress, renderLanes);
+      return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes);
+    } // React DevTools reads this flag.
+
+
+    workInProgress.flags |= PerformedWork;
+    reconcileChildren(current, workInProgress, nextChildren, renderLanes);
+    return workInProgress.child;
+  }
+
+  function updateMemoComponent(current, workInProgress, Component, nextProps, updateLanes, renderLanes) {
+    if (current === null) {
+      var type = Component.type;
+
+      if (isSimpleFunctionComponent(type) && Component.compare === null && // SimpleMemoComponent codepath doesn't resolve outer props either.
+      Component.defaultProps === undefined) {
+        var resolvedType = type;
+
+        {
+          resolvedType = resolveFunctionForHotReloading(type);
+        } // If this is a plain function component without default props,
+        // and with only the default shallow comparison, we upgrade it
+        // to a SimpleMemoComponent to allow fast path updates.
+
+
+        workInProgress.tag = SimpleMemoComponent;
+        workInProgress.type = resolvedType;
+
+        {
+          validateFunctionComponentInDev(workInProgress, type);
+        }
+
+        return updateSimpleMemoComponent(current, workInProgress, resolvedType, nextProps, updateLanes, renderLanes);
+      }
+
+      {
+        var innerPropTypes = type.propTypes;
+
+        if (innerPropTypes) {
+          // Inner memo component props aren't currently validated in createElement.
+          // We could move it there, but we'd still need this for lazy code path.
+          checkPropTypes(innerPropTypes, nextProps, // Resolved props
+          'prop', getComponentName(type));
+        }
+      }
+
+      var child = createFiberFromTypeAndProps(Component.type, null, nextProps, workInProgress, workInProgress.mode, renderLanes);
+      child.ref = workInProgress.ref;
+      child.return = workInProgress;
+      workInProgress.child = child;
+      return child;
+    }
+
+    {
+      var _type = Component.type;
+      var _innerPropTypes = _type.propTypes;
+
+      if (_innerPropTypes) {
+        // Inner memo component props aren't currently validated in createElement.
+        // We could move it there, but we'd still need this for lazy code path.
+        checkPropTypes(_innerPropTypes, nextProps, // Resolved props
+        'prop', getComponentName(_type));
+      }
+    }
+
+    var currentChild = current.child; // This is always exactly one child
+
+    if (!includesSomeLane(updateLanes, renderLanes)) {
+      // This will be the props with resolved defaultProps,
+      // unlike current.memoizedProps which will be the unresolved ones.
+      var prevProps = currentChild.memoizedProps; // Default to shallow comparison
+
+      var compare = Component.compare;
+      compare = compare !== null ? compare : shallowEqual;
+
+      if (compare(prevProps, nextProps) && current.ref === workInProgress.ref) {
+        return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes);
+      }
+    } // React DevTools reads this flag.
+
+
+    workInProgress.flags |= PerformedWork;
+    var newChild = createWorkInProgress(currentChild, nextProps);
+    newChild.ref = workInProgress.ref;
+    newChild.return = workInProgress;
+    workInProgress.child = newChild;
+    return newChild;
+  }
+
+  function updateSimpleMemoComponent(current, workInProgress, Component, nextProps, updateLanes, renderLanes) {
+    // TODO: current can be non-null here even if the component
+    // hasn't yet mounted. This happens when the inner render suspends.
+    // We'll need to figure out if this is fine or can cause issues.
+    {
+      if (workInProgress.type !== workInProgress.elementType) {
+        // Lazy component props can't be validated in createElement
+        // because they're only guaranteed to be resolved here.
+        var outerMemoType = workInProgress.elementType;
+
+        if (outerMemoType.$$typeof === REACT_LAZY_TYPE) {
+          // We warn when you define propTypes on lazy()
+          // so let's just skip over it to find memo() outer wrapper.
+          // Inner props for memo are validated later.
+          var lazyComponent = outerMemoType;
+          var payload = lazyComponent._payload;
+          var init = lazyComponent._init;
+
+          try {
+            outerMemoType = init(payload);
+          } catch (x) {
+            outerMemoType = null;
+          } // Inner propTypes will be validated in the function component path.
+
+
+          var outerPropTypes = outerMemoType && outerMemoType.propTypes;
+
+          if (outerPropTypes) {
+            checkPropTypes(outerPropTypes, nextProps, // Resolved (SimpleMemoComponent has no defaultProps)
+            'prop', getComponentName(outerMemoType));
+          }
+        }
+      }
+    }
+
+    if (current !== null) {
+      var prevProps = current.memoizedProps;
+
+      if (shallowEqual(prevProps, nextProps) && current.ref === workInProgress.ref && ( // Prevent bailout if the implementation changed due to hot reload.
+       workInProgress.type === current.type )) {
+        didReceiveUpdate = false;
+
+        if (!includesSomeLane(renderLanes, updateLanes)) {
+          // The pending lanes were cleared at the beginning of beginWork. We're
+          // about to bail out, but there might be other lanes that weren't
+          // included in the current render. Usually, the priority level of the
+          // remaining updates is accumlated during the evaluation of the
+          // component (i.e. when processing the update queue). But since since
+          // we're bailing out early *without* evaluating the component, we need
+          // to account for it here, too. Reset to the value of the current fiber.
+          // NOTE: This only applies to SimpleMemoComponent, not MemoComponent,
+          // because a MemoComponent fiber does not have hooks or an update queue;
+          // rather, it wraps around an inner component, which may or may not
+          // contains hooks.
+          // TODO: Move the reset at in beginWork out of the common path so that
+          // this is no longer necessary.
+          workInProgress.lanes = current.lanes;
+          return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes);
+        } else if ((current.flags & ForceUpdateForLegacySuspense) !== NoFlags) {
+          // This is a special case that only exists for legacy mode.
+          // See https://github.com/facebook/react/pull/19216.
+          didReceiveUpdate = true;
+        }
+      }
+    }
+
+    return updateFunctionComponent(current, workInProgress, Component, nextProps, renderLanes);
+  }
+
+  function updateOffscreenComponent(current, workInProgress, renderLanes) {
+    var nextProps = workInProgress.pendingProps;
+    var nextChildren = nextProps.children;
+    var prevState = current !== null ? current.memoizedState : null;
+
+    if (nextProps.mode === 'hidden' || nextProps.mode === 'unstable-defer-without-hiding') {
+      if ((workInProgress.mode & ConcurrentMode) === NoMode) {
+        // In legacy sync mode, don't defer the subtree. Render it now.
+        // TODO: Figure out what we should do in Blocking mode.
+        var nextState = {
+          baseLanes: NoLanes
+        };
+        workInProgress.memoizedState = nextState;
+        pushRenderLanes(workInProgress, renderLanes);
+      } else if (!includesSomeLane(renderLanes, OffscreenLane)) {
+        var nextBaseLanes;
+
+        if (prevState !== null) {
+          var prevBaseLanes = prevState.baseLanes;
+          nextBaseLanes = mergeLanes(prevBaseLanes, renderLanes);
+        } else {
+          nextBaseLanes = renderLanes;
+        } // Schedule this fiber to re-render at offscreen priority. Then bailout.
+
+
+        {
+          markSpawnedWork(OffscreenLane);
+        }
+
+        workInProgress.lanes = workInProgress.childLanes = laneToLanes(OffscreenLane);
+        var _nextState = {
+          baseLanes: nextBaseLanes
+        };
+        workInProgress.memoizedState = _nextState; // We're about to bail out, but we need to push this to the stack anyway
+        // to avoid a push/pop misalignment.
+
+        pushRenderLanes(workInProgress, nextBaseLanes);
+        return null;
+      } else {
+        // Rendering at offscreen, so we can clear the base lanes.
+        var _nextState2 = {
+          baseLanes: NoLanes
+        };
+        workInProgress.memoizedState = _nextState2; // Push the lanes that were skipped when we bailed out.
+
+        var subtreeRenderLanes = prevState !== null ? prevState.baseLanes : renderLanes;
+        pushRenderLanes(workInProgress, subtreeRenderLanes);
+      }
+    } else {
+      var _subtreeRenderLanes;
+
+      if (prevState !== null) {
+        _subtreeRenderLanes = mergeLanes(prevState.baseLanes, renderLanes); // Since we're not hidden anymore, reset the state
+
+        workInProgress.memoizedState = null;
+      } else {
+        // We weren't previously hidden, and we still aren't, so there's nothing
+        // special to do. Need to push to the stack regardless, though, to avoid
+        // a push/pop misalignment.
+        _subtreeRenderLanes = renderLanes;
+      }
+
+      pushRenderLanes(workInProgress, _subtreeRenderLanes);
+    }
+
+    reconcileChildren(current, workInProgress, nextChildren, renderLanes);
+    return workInProgress.child;
+  } // Note: These happen to have identical begin phases, for now. We shouldn't hold
+  // ourselves to this constraint, though. If the behavior diverges, we should
+  // fork the function.
+
+
+  var updateLegacyHiddenComponent = updateOffscreenComponent;
+
+  function updateFragment(current, workInProgress, renderLanes) {
+    var nextChildren = workInProgress.pendingProps;
+    reconcileChildren(current, workInProgress, nextChildren, renderLanes);
+    return workInProgress.child;
+  }
+
+  function updateMode(current, workInProgress, renderLanes) {
+    var nextChildren = workInProgress.pendingProps.children;
+    reconcileChildren(current, workInProgress, nextChildren, renderLanes);
+    return workInProgress.child;
+  }
+
+  function updateProfiler(current, workInProgress, renderLanes) {
+    {
+      workInProgress.flags |= Update; // Reset effect durations for the next eventual effect phase.
+      // These are reset during render to allow the DevTools commit hook a chance to read them,
+
+      var stateNode = workInProgress.stateNode;
+      stateNode.effectDuration = 0;
+      stateNode.passiveEffectDuration = 0;
+    }
+
+    var nextProps = workInProgress.pendingProps;
+    var nextChildren = nextProps.children;
+    reconcileChildren(current, workInProgress, nextChildren, renderLanes);
+    return workInProgress.child;
+  }
+
+  function markRef(current, workInProgress) {
+    var ref = workInProgress.ref;
+
+    if (current === null && ref !== null || current !== null && current.ref !== ref) {
+      // Schedule a Ref effect
+      workInProgress.flags |= Ref;
+    }
+  }
+
+  function updateFunctionComponent(current, workInProgress, Component, nextProps, renderLanes) {
+    {
+      if (workInProgress.type !== workInProgress.elementType) {
+        // Lazy component props can't be validated in createElement
+        // because they're only guaranteed to be resolved here.
+        var innerPropTypes = Component.propTypes;
+
+        if (innerPropTypes) {
+          checkPropTypes(innerPropTypes, nextProps, // Resolved props
+          'prop', getComponentName(Component));
+        }
+      }
+    }
+
+    var context;
+
+    {
+      var unmaskedContext = getUnmaskedContext(workInProgress, Component, true);
+      context = getMaskedContext(workInProgress, unmaskedContext);
+    }
+
+    var nextChildren;
+    prepareToReadContext(workInProgress, renderLanes);
+
+    {
+      ReactCurrentOwner$1.current = workInProgress;
+      setIsRendering(true);
+      nextChildren = renderWithHooks(current, workInProgress, Component, nextProps, context, renderLanes);
+
+      if ( workInProgress.mode & StrictMode) {
+        disableLogs();
+
+        try {
+          nextChildren = renderWithHooks(current, workInProgress, Component, nextProps, context, renderLanes);
+        } finally {
+          reenableLogs();
+        }
+      }
+
+      setIsRendering(false);
+    }
+
+    if (current !== null && !didReceiveUpdate) {
+      bailoutHooks(current, workInProgress, renderLanes);
+      return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes);
+    } // React DevTools reads this flag.
+
+
+    workInProgress.flags |= PerformedWork;
+    reconcileChildren(current, workInProgress, nextChildren, renderLanes);
+    return workInProgress.child;
+  }
+
+  function updateClassComponent(current, workInProgress, Component, nextProps, renderLanes) {
+    {
+      if (workInProgress.type !== workInProgress.elementType) {
+        // Lazy component props can't be validated in createElement
+        // because they're only guaranteed to be resolved here.
+        var innerPropTypes = Component.propTypes;
+
+        if (innerPropTypes) {
+          checkPropTypes(innerPropTypes, nextProps, // Resolved props
+          'prop', getComponentName(Component));
+        }
+      }
+    } // Push context providers early to prevent context stack mismatches.
+    // During mounting we don't know the child context yet as the instance doesn't exist.
+    // We will invalidate the child context in finishClassComponent() right after rendering.
+
+
+    var hasContext;
+
+    if (isContextProvider(Component)) {
+      hasContext = true;
+      pushContextProvider(workInProgress);
+    } else {
+      hasContext = false;
+    }
+
+    prepareToReadContext(workInProgress, renderLanes);
+    var instance = workInProgress.stateNode;
+    var shouldUpdate;
+
+    if (instance === null) {
+      if (current !== null) {
+        // A class component without an instance only mounts if it suspended
+        // inside a non-concurrent tree, in an inconsistent state. We want to
+        // treat it like a new mount, even though an empty version of it already
+        // committed. Disconnect the alternate pointers.
+        current.alternate = null;
+        workInProgress.alternate = null; // Since this is conceptually a new fiber, schedule a Placement effect
+
+        workInProgress.flags |= Placement;
+      } // In the initial pass we might need to construct the instance.
+
+
+      constructClassInstance(workInProgress, Component, nextProps);
+      mountClassInstance(workInProgress, Component, nextProps, renderLanes);
+      shouldUpdate = true;
+    } else if (current === null) {
+      // In a resume, we'll already have an instance we can reuse.
+      shouldUpdate = resumeMountClassInstance(workInProgress, Component, nextProps, renderLanes);
+    } else {
+      shouldUpdate = updateClassInstance(current, workInProgress, Component, nextProps, renderLanes);
+    }
+
+    var nextUnitOfWork = finishClassComponent(current, workInProgress, Component, shouldUpdate, hasContext, renderLanes);
+
+    {
+      var inst = workInProgress.stateNode;
+
+      if (shouldUpdate && inst.props !== nextProps) {
+        if (!didWarnAboutReassigningProps) {
+          error('It looks like %s is reassigning its own `this.props` while rendering. ' + 'This is not supported and can lead to confusing bugs.', getComponentName(workInProgress.type) || 'a component');
+        }
+
+        didWarnAboutReassigningProps = true;
+      }
+    }
+
+    return nextUnitOfWork;
+  }
+
+  function finishClassComponent(current, workInProgress, Component, shouldUpdate, hasContext, renderLanes) {
+    // Refs should update even if shouldComponentUpdate returns false
+    markRef(current, workInProgress);
+    var didCaptureError = (workInProgress.flags & DidCapture) !== NoFlags;
+
+    if (!shouldUpdate && !didCaptureError) {
+      // Context providers should defer to sCU for rendering
+      if (hasContext) {
+        invalidateContextProvider(workInProgress, Component, false);
+      }
+
+      return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes);
+    }
+
+    var instance = workInProgress.stateNode; // Rerender
+
+    ReactCurrentOwner$1.current = workInProgress;
+    var nextChildren;
+
+    if (didCaptureError && typeof Component.getDerivedStateFromError !== 'function') {
+      // If we captured an error, but getDerivedStateFromError is not defined,
+      // unmount all the children. componentDidCatch will schedule an update to
+      // re-render a fallback. This is temporary until we migrate everyone to
+      // the new API.
+      // TODO: Warn in a future release.
+      nextChildren = null;
+
+      {
+        stopProfilerTimerIfRunning();
+      }
+    } else {
+      {
+        setIsRendering(true);
+        nextChildren = instance.render();
+
+        if ( workInProgress.mode & StrictMode) {
+          disableLogs();
+
+          try {
+            instance.render();
+          } finally {
+            reenableLogs();
+          }
+        }
+
+        setIsRendering(false);
+      }
+    } // React DevTools reads this flag.
+
+
+    workInProgress.flags |= PerformedWork;
+
+    if (current !== null && didCaptureError) {
+      // If we're recovering from an error, reconcile without reusing any of
+      // the existing children. Conceptually, the normal children and the children
+      // that are shown on error are two different sets, so we shouldn't reuse
+      // normal children even if their identities match.
+      forceUnmountCurrentAndReconcile(current, workInProgress, nextChildren, renderLanes);
+    } else {
+      reconcileChildren(current, workInProgress, nextChildren, renderLanes);
+    } // Memoize state using the values we just used to render.
+    // TODO: Restructure so we never read values from the instance.
+
+
+    workInProgress.memoizedState = instance.state; // The context might have changed so we need to recalculate it.
+
+    if (hasContext) {
+      invalidateContextProvider(workInProgress, Component, true);
+    }
+
+    return workInProgress.child;
+  }
+
+  function pushHostRootContext(workInProgress) {
+    var root = workInProgress.stateNode;
+
+    if (root.pendingContext) {
+      pushTopLevelContextObject(workInProgress, root.pendingContext, root.pendingContext !== root.context);
+    } else if (root.context) {
+      // Should always be set
+      pushTopLevelContextObject(workInProgress, root.context, false);
+    }
+
+    pushHostContainer(workInProgress, root.containerInfo);
+  }
+
+  function updateHostRoot(current, workInProgress, renderLanes) {
+    pushHostRootContext(workInProgress);
+    var updateQueue = workInProgress.updateQueue;
+
+    if (!(current !== null && updateQueue !== null)) {
+      {
+        throw Error( "If the root does not have an updateQueue, we should have already bailed out. This error is likely caused by a bug in React. Please file an issue." );
+      }
+    }
+
+    var nextProps = workInProgress.pendingProps;
+    var prevState = workInProgress.memoizedState;
+    var prevChildren = prevState !== null ? prevState.element : null;
+    cloneUpdateQueue(current, workInProgress);
+    processUpdateQueue(workInProgress, nextProps, null, renderLanes);
+    var nextState = workInProgress.memoizedState; // Caution: React DevTools currently depends on this property
+    // being called "element".
+
+    var nextChildren = nextState.element;
+
+    if (nextChildren === prevChildren) {
+      resetHydrationState();
+      return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes);
+    }
+
+    var root = workInProgress.stateNode;
+
+    if (root.hydrate && enterHydrationState(workInProgress)) {
+      // If we don't have any current children this might be the first pass.
+      // We always try to hydrate. If this isn't a hydration pass there won't
+      // be any children to hydrate which is effectively the same thing as
+      // not hydrating.
+      {
+        var mutableSourceEagerHydrationData = root.mutableSourceEagerHydrationData;
+
+        if (mutableSourceEagerHydrationData != null) {
+          for (var i = 0; i < mutableSourceEagerHydrationData.length; i += 2) {
+            var mutableSource = mutableSourceEagerHydrationData[i];
+            var version = mutableSourceEagerHydrationData[i + 1];
+            setWorkInProgressVersion(mutableSource, version);
+          }
+        }
+      }
+
+      var child = mountChildFibers(workInProgress, null, nextChildren, renderLanes);
+      workInProgress.child = child;
+      var node = child;
+
+      while (node) {
+        // Mark each child as hydrating. This is a fast path to know whether this
+        // tree is part of a hydrating tree. This is used to determine if a child
+        // node has fully mounted yet, and for scheduling event replaying.
+        // Conceptually this is similar to Placement in that a new subtree is
+        // inserted into the React tree here. It just happens to not need DOM
+        // mutations because it already exists.
+        node.flags = node.flags & ~Placement | Hydrating;
+        node = node.sibling;
+      }
+    } else {
+      // Otherwise reset hydration state in case we aborted and resumed another
+      // root.
+      reconcileChildren(current, workInProgress, nextChildren, renderLanes);
+      resetHydrationState();
+    }
+
+    return workInProgress.child;
+  }
+
+  function updateHostComponent(current, workInProgress, renderLanes) {
+    pushHostContext(workInProgress);
+
+    if (current === null) {
+      tryToClaimNextHydratableInstance(workInProgress);
+    }
+
+    var type = workInProgress.type;
+    var nextProps = workInProgress.pendingProps;
+    var prevProps = current !== null ? current.memoizedProps : null;
+    var nextChildren = nextProps.children;
+    var isDirectTextChild = shouldSetTextContent(type, nextProps);
+
+    if (isDirectTextChild) {
+      // We special case a direct text child of a host node. This is a common
+      // case. We won't handle it as a reified child. We will instead handle
+      // this in the host environment that also has access to this prop. That
+      // avoids allocating another HostText fiber and traversing it.
+      nextChildren = null;
+    } else if (prevProps !== null && shouldSetTextContent(type, prevProps)) {
+      // If we're switching from a direct text child to a normal child, or to
+      // empty, we need to schedule the text content to be reset.
+      workInProgress.flags |= ContentReset;
+    }
+
+    markRef(current, workInProgress);
+    reconcileChildren(current, workInProgress, nextChildren, renderLanes);
+    return workInProgress.child;
+  }
+
+  function updateHostText(current, workInProgress) {
+    if (current === null) {
+      tryToClaimNextHydratableInstance(workInProgress);
+    } // Nothing to do here. This is terminal. We'll do the completion step
+    // immediately after.
+
+
+    return null;
+  }
+
+  function mountLazyComponent(_current, workInProgress, elementType, updateLanes, renderLanes) {
+    if (_current !== null) {
+      // A lazy component only mounts if it suspended inside a non-
+      // concurrent tree, in an inconsistent state. We want to treat it like
+      // a new mount, even though an empty version of it already committed.
+      // Disconnect the alternate pointers.
+      _current.alternate = null;
+      workInProgress.alternate = null; // Since this is conceptually a new fiber, schedule a Placement effect
+
+      workInProgress.flags |= Placement;
+    }
+
+    var props = workInProgress.pendingProps;
+    var lazyComponent = elementType;
+    var payload = lazyComponent._payload;
+    var init = lazyComponent._init;
+    var Component = init(payload); // Store the unwrapped component in the type.
+
+    workInProgress.type = Component;
+    var resolvedTag = workInProgress.tag = resolveLazyComponentTag(Component);
+    var resolvedProps = resolveDefaultProps(Component, props);
+    var child;
+
+    switch (resolvedTag) {
+      case FunctionComponent:
+        {
+          {
+            validateFunctionComponentInDev(workInProgress, Component);
+            workInProgress.type = Component = resolveFunctionForHotReloading(Component);
+          }
+
+          child = updateFunctionComponent(null, workInProgress, Component, resolvedProps, renderLanes);
+          return child;
+        }
+
+      case ClassComponent:
+        {
+          {
+            workInProgress.type = Component = resolveClassForHotReloading(Component);
+          }
+
+          child = updateClassComponent(null, workInProgress, Component, resolvedProps, renderLanes);
+          return child;
+        }
+
+      case ForwardRef:
+        {
+          {
+            workInProgress.type = Component = resolveForwardRefForHotReloading(Component);
+          }
+
+          child = updateForwardRef(null, workInProgress, Component, resolvedProps, renderLanes);
+          return child;
+        }
+
+      case MemoComponent:
+        {
+          {
+            if (workInProgress.type !== workInProgress.elementType) {
+              var outerPropTypes = Component.propTypes;
+
+              if (outerPropTypes) {
+                checkPropTypes(outerPropTypes, resolvedProps, // Resolved for outer only
+                'prop', getComponentName(Component));
+              }
+            }
+          }
+
+          child = updateMemoComponent(null, workInProgress, Component, resolveDefaultProps(Component.type, resolvedProps), // The inner type can have defaults too
+          updateLanes, renderLanes);
+          return child;
+        }
+    }
+
+    var hint = '';
+
+    {
+      if (Component !== null && typeof Component === 'object' && Component.$$typeof === REACT_LAZY_TYPE) {
+        hint = ' Did you wrap a component in React.lazy() more than once?';
+      }
+    } // This message intentionally doesn't mention ForwardRef or MemoComponent
+    // because the fact that it's a separate type of work is an
+    // implementation detail.
+
+
+    {
+      {
+        throw Error( "Element type is invalid. Received a promise that resolves to: " + Component + ". Lazy element type must resolve to a class or function." + hint );
+      }
+    }
+  }
+
+  function mountIncompleteClassComponent(_current, workInProgress, Component, nextProps, renderLanes) {
+    if (_current !== null) {
+      // An incomplete component only mounts if it suspended inside a non-
+      // concurrent tree, in an inconsistent state. We want to treat it like
+      // a new mount, even though an empty version of it already committed.
+      // Disconnect the alternate pointers.
+      _current.alternate = null;
+      workInProgress.alternate = null; // Since this is conceptually a new fiber, schedule a Placement effect
+
+      workInProgress.flags |= Placement;
+    } // Promote the fiber to a class and try rendering again.
+
+
+    workInProgress.tag = ClassComponent; // The rest of this function is a fork of `updateClassComponent`
+    // Push context providers early to prevent context stack mismatches.
+    // During mounting we don't know the child context yet as the instance doesn't exist.
+    // We will invalidate the child context in finishClassComponent() right after rendering.
+
+    var hasContext;
+
+    if (isContextProvider(Component)) {
+      hasContext = true;
+      pushContextProvider(workInProgress);
+    } else {
+      hasContext = false;
+    }
+
+    prepareToReadContext(workInProgress, renderLanes);
+    constructClassInstance(workInProgress, Component, nextProps);
+    mountClassInstance(workInProgress, Component, nextProps, renderLanes);
+    return finishClassComponent(null, workInProgress, Component, true, hasContext, renderLanes);
+  }
+
+  function mountIndeterminateComponent(_current, workInProgress, Component, renderLanes) {
+    if (_current !== null) {
+      // An indeterminate component only mounts if it suspended inside a non-
+      // concurrent tree, in an inconsistent state. We want to treat it like
+      // a new mount, even though an empty version of it already committed.
+      // Disconnect the alternate pointers.
+      _current.alternate = null;
+      workInProgress.alternate = null; // Since this is conceptually a new fiber, schedule a Placement effect
+
+      workInProgress.flags |= Placement;
+    }
+
+    var props = workInProgress.pendingProps;
+    var context;
+
+    {
+      var unmaskedContext = getUnmaskedContext(workInProgress, Component, false);
+      context = getMaskedContext(workInProgress, unmaskedContext);
+    }
+
+    prepareToReadContext(workInProgress, renderLanes);
+    var value;
+
+    {
+      if (Component.prototype && typeof Component.prototype.render === 'function') {
+        var componentName = getComponentName(Component) || 'Unknown';
+
+        if (!didWarnAboutBadClass[componentName]) {
+          error("The <%s /> component appears to have a render method, but doesn't extend React.Component. " + 'This is likely to cause errors. Change %s to extend React.Component instead.', componentName, componentName);
+
+          didWarnAboutBadClass[componentName] = true;
+        }
+      }
+
+      if (workInProgress.mode & StrictMode) {
+        ReactStrictModeWarnings.recordLegacyContextWarning(workInProgress, null);
+      }
+
+      setIsRendering(true);
+      ReactCurrentOwner$1.current = workInProgress;
+      value = renderWithHooks(null, workInProgress, Component, props, context, renderLanes);
+      setIsRendering(false);
+    } // React DevTools reads this flag.
+
+
+    workInProgress.flags |= PerformedWork;
+
+    {
+      // Support for module components is deprecated and is removed behind a flag.
+      // Whether or not it would crash later, we want to show a good message in DEV first.
+      if (typeof value === 'object' && value !== null && typeof value.render === 'function' && value.$$typeof === undefined) {
+        var _componentName = getComponentName(Component) || 'Unknown';
+
+        if (!didWarnAboutModulePatternComponent[_componentName]) {
+          error('The <%s /> component appears to be a function component that returns a class instance. ' + 'Change %s to a class that extends React.Component instead. ' + "If you can't use a class try assigning the prototype on the function as a workaround. " + "`%s.prototype = React.Component.prototype`. Don't use an arrow function since it " + 'cannot be called with `new` by React.', _componentName, _componentName, _componentName);
+
+          didWarnAboutModulePatternComponent[_componentName] = true;
+        }
+      }
+    }
+
+    if ( // Run these checks in production only if the flag is off.
+    // Eventually we'll delete this branch altogether.
+     typeof value === 'object' && value !== null && typeof value.render === 'function' && value.$$typeof === undefined) {
+      {
+        var _componentName2 = getComponentName(Component) || 'Unknown';
+
+        if (!didWarnAboutModulePatternComponent[_componentName2]) {
+          error('The <%s /> component appears to be a function component that returns a class instance. ' + 'Change %s to a class that extends React.Component instead. ' + "If you can't use a class try assigning the prototype on the function as a workaround. " + "`%s.prototype = React.Component.prototype`. Don't use an arrow function since it " + 'cannot be called with `new` by React.', _componentName2, _componentName2, _componentName2);
+
+          didWarnAboutModulePatternComponent[_componentName2] = true;
+        }
+      } // Proceed under the assumption that this is a class instance
+
+
+      workInProgress.tag = ClassComponent; // Throw out any hooks that were used.
+
+      workInProgress.memoizedState = null;
+      workInProgress.updateQueue = null; // Push context providers early to prevent context stack mismatches.
+      // During mounting we don't know the child context yet as the instance doesn't exist.
+      // We will invalidate the child context in finishClassComponent() right after rendering.
+
+      var hasContext = false;
+
+      if (isContextProvider(Component)) {
+        hasContext = true;
+        pushContextProvider(workInProgress);
+      } else {
+        hasContext = false;
+      }
+
+      workInProgress.memoizedState = value.state !== null && value.state !== undefined ? value.state : null;
+      initializeUpdateQueue(workInProgress);
+      var getDerivedStateFromProps = Component.getDerivedStateFromProps;
+
+      if (typeof getDerivedStateFromProps === 'function') {
+        applyDerivedStateFromProps(workInProgress, Component, getDerivedStateFromProps, props);
+      }
+
+      adoptClassInstance(workInProgress, value);
+      mountClassInstance(workInProgress, Component, props, renderLanes);
+      return finishClassComponent(null, workInProgress, Component, true, hasContext, renderLanes);
+    } else {
+      // Proceed under the assumption that this is a function component
+      workInProgress.tag = FunctionComponent;
+
+      {
+
+        if ( workInProgress.mode & StrictMode) {
+          disableLogs();
+
+          try {
+            value = renderWithHooks(null, workInProgress, Component, props, context, renderLanes);
+          } finally {
+            reenableLogs();
+          }
+        }
+      }
+
+      reconcileChildren(null, workInProgress, value, renderLanes);
+
+      {
+        validateFunctionComponentInDev(workInProgress, Component);
+      }
+
+      return workInProgress.child;
+    }
+  }
+
+  function validateFunctionComponentInDev(workInProgress, Component) {
+    {
+      if (Component) {
+        if (Component.childContextTypes) {
+          error('%s(...): childContextTypes cannot be defined on a function component.', Component.displayName || Component.name || 'Component');
+        }
+      }
+
+      if (workInProgress.ref !== null) {
+        var info = '';
+        var ownerName = getCurrentFiberOwnerNameInDevOrNull();
+
+        if (ownerName) {
+          info += '\n\nCheck the render method of `' + ownerName + '`.';
+        }
+
+        var warningKey = ownerName || workInProgress._debugID || '';
+        var debugSource = workInProgress._debugSource;
+
+        if (debugSource) {
+          warningKey = debugSource.fileName + ':' + debugSource.lineNumber;
+        }
+
+        if (!didWarnAboutFunctionRefs[warningKey]) {
+          didWarnAboutFunctionRefs[warningKey] = true;
+
+          error('Function components cannot be given refs. ' + 'Attempts to access this ref will fail. ' + 'Did you mean to use React.forwardRef()?%s', info);
+        }
+      }
+
+      if (typeof Component.getDerivedStateFromProps === 'function') {
+        var _componentName3 = getComponentName(Component) || 'Unknown';
+
+        if (!didWarnAboutGetDerivedStateOnFunctionComponent[_componentName3]) {
+          error('%s: Function components do not support getDerivedStateFromProps.', _componentName3);
+
+          didWarnAboutGetDerivedStateOnFunctionComponent[_componentName3] = true;
+        }
+      }
+
+      if (typeof Component.contextType === 'object' && Component.contextType !== null) {
+        var _componentName4 = getComponentName(Component) || 'Unknown';
+
+        if (!didWarnAboutContextTypeOnFunctionComponent[_componentName4]) {
+          error('%s: Function components do not support contextType.', _componentName4);
+
+          didWarnAboutContextTypeOnFunctionComponent[_componentName4] = true;
+        }
+      }
+    }
+  }
+
+  var SUSPENDED_MARKER = {
+    dehydrated: null,
+    retryLane: NoLane
+  };
+
+  function mountSuspenseOffscreenState(renderLanes) {
+    return {
+      baseLanes: renderLanes
+    };
+  }
+
+  function updateSuspenseOffscreenState(prevOffscreenState, renderLanes) {
+    return {
+      baseLanes: mergeLanes(prevOffscreenState.baseLanes, renderLanes)
+    };
+  } // TODO: Probably should inline this back
+
+
+  function shouldRemainOnFallback(suspenseContext, current, workInProgress, renderLanes) {
+    // If we're already showing a fallback, there are cases where we need to
+    // remain on that fallback regardless of whether the content has resolved.
+    // For example, SuspenseList coordinates when nested content appears.
+    if (current !== null) {
+      var suspenseState = current.memoizedState;
+
+      if (suspenseState === null) {
+        // Currently showing content. Don't hide it, even if ForceSuspenseFallack
+        // is true. More precise name might be "ForceRemainSuspenseFallback".
+        // Note: This is a factoring smell. Can't remain on a fallback if there's
+        // no fallback to remain on.
+        return false;
+      }
+    } // Not currently showing content. Consult the Suspense context.
+
+
+    return hasSuspenseContext(suspenseContext, ForceSuspenseFallback);
+  }
+
+  function getRemainingWorkInPrimaryTree(current, renderLanes) {
+    // TODO: Should not remove render lanes that were pinged during this render
+    return removeLanes(current.childLanes, renderLanes);
+  }
+
+  function updateSuspenseComponent(current, workInProgress, renderLanes) {
+    var nextProps = workInProgress.pendingProps; // This is used by DevTools to force a boundary to suspend.
+
+    {
+      if (shouldSuspend(workInProgress)) {
+        workInProgress.flags |= DidCapture;
+      }
+    }
+
+    var suspenseContext = suspenseStackCursor.current;
+    var showFallback = false;
+    var didSuspend = (workInProgress.flags & DidCapture) !== NoFlags;
+
+    if (didSuspend || shouldRemainOnFallback(suspenseContext, current)) {
+      // Something in this boundary's subtree already suspended. Switch to
+      // rendering the fallback children.
+      showFallback = true;
+      workInProgress.flags &= ~DidCapture;
+    } else {
+      // Attempting the main content
+      if (current === null || current.memoizedState !== null) {
+        // This is a new mount or this boundary is already showing a fallback state.
+        // Mark this subtree context as having at least one invisible parent that could
+        // handle the fallback state.
+        // Boundaries without fallbacks or should be avoided are not considered since
+        // they cannot handle preferred fallback states.
+        if (nextProps.fallback !== undefined && nextProps.unstable_avoidThisFallback !== true) {
+          suspenseContext = addSubtreeSuspenseContext(suspenseContext, InvisibleParentSuspenseContext);
+        }
+      }
+    }
+
+    suspenseContext = setDefaultShallowSuspenseContext(suspenseContext);
+    pushSuspenseContext(workInProgress, suspenseContext); // OK, the next part is confusing. We're about to reconcile the Suspense
+    // boundary's children. This involves some custom reconcilation logic. Two
+    // main reasons this is so complicated.
+    //
+    // First, Legacy Mode has different semantics for backwards compatibility. The
+    // primary tree will commit in an inconsistent state, so when we do the
+    // second pass to render the fallback, we do some exceedingly, uh, clever
+    // hacks to make that not totally break. Like transferring effects and
+    // deletions from hidden tree. In Concurrent Mode, it's much simpler,
+    // because we bailout on the primary tree completely and leave it in its old
+    // state, no effects. Same as what we do for Offscreen (except that
+    // Offscreen doesn't have the first render pass).
+    //
+    // Second is hydration. During hydration, the Suspense fiber has a slightly
+    // different layout, where the child points to a dehydrated fragment, which
+    // contains the DOM rendered by the server.
+    //
+    // Third, even if you set all that aside, Suspense is like error boundaries in
+    // that we first we try to render one tree, and if that fails, we render again
+    // and switch to a different tree. Like a try/catch block. So we have to track
+    // which branch we're currently rendering. Ideally we would model this using
+    // a stack.
+
+    if (current === null) {
+      // Initial mount
+      // If we're currently hydrating, try to hydrate this boundary.
+      // But only if this has a fallback.
+      if (nextProps.fallback !== undefined) {
+        tryToClaimNextHydratableInstance(workInProgress); // This could've been a dehydrated suspense component.
+      }
+
+      var nextPrimaryChildren = nextProps.children;
+      var nextFallbackChildren = nextProps.fallback;
+
+      if (showFallback) {
+        var fallbackFragment = mountSuspenseFallbackChildren(workInProgress, nextPrimaryChildren, nextFallbackChildren, renderLanes);
+        var primaryChildFragment = workInProgress.child;
+        primaryChildFragment.memoizedState = mountSuspenseOffscreenState(renderLanes);
+        workInProgress.memoizedState = SUSPENDED_MARKER;
+        return fallbackFragment;
+      } else if (typeof nextProps.unstable_expectedLoadTime === 'number') {
+        // This is a CPU-bound tree. Skip this tree and show a placeholder to
+        // unblock the surrounding content. Then immediately retry after the
+        // initial commit.
+        var _fallbackFragment = mountSuspenseFallbackChildren(workInProgress, nextPrimaryChildren, nextFallbackChildren, renderLanes);
+
+        var _primaryChildFragment = workInProgress.child;
+        _primaryChildFragment.memoizedState = mountSuspenseOffscreenState(renderLanes);
+        workInProgress.memoizedState = SUSPENDED_MARKER; // Since nothing actually suspended, there will nothing to ping this to
+        // get it started back up to attempt the next item. While in terms of
+        // priority this work has the same priority as this current render, it's
+        // not part of the same transition once the transition has committed. If
+        // it's sync, we still want to yield so that it can be painted.
+        // Conceptually, this is really the same as pinging. We can use any
+        // RetryLane even if it's the one currently rendering since we're leaving
+        // it behind on this node.
+
+        workInProgress.lanes = SomeRetryLane;
+
+        {
+          markSpawnedWork(SomeRetryLane);
+        }
+
+        return _fallbackFragment;
+      } else {
+        return mountSuspensePrimaryChildren(workInProgress, nextPrimaryChildren, renderLanes);
+      }
+    } else {
+      // This is an update.
+      // If the current fiber has a SuspenseState, that means it's already showing
+      // a fallback.
+      var prevState = current.memoizedState;
+
+      if (prevState !== null) {
+
+        if (showFallback) {
+          var _nextFallbackChildren2 = nextProps.fallback;
+          var _nextPrimaryChildren2 = nextProps.children;
+
+          var _fallbackChildFragment = updateSuspenseFallbackChildren(current, workInProgress, _nextPrimaryChildren2, _nextFallbackChildren2, renderLanes);
+
+          var _primaryChildFragment3 = workInProgress.child;
+          var prevOffscreenState = current.child.memoizedState;
+          _primaryChildFragment3.memoizedState = prevOffscreenState === null ? mountSuspenseOffscreenState(renderLanes) : updateSuspenseOffscreenState(prevOffscreenState, renderLanes);
+          _primaryChildFragment3.childLanes = getRemainingWorkInPrimaryTree(current, renderLanes);
+          workInProgress.memoizedState = SUSPENDED_MARKER;
+          return _fallbackChildFragment;
+        } else {
+          var _nextPrimaryChildren3 = nextProps.children;
+
+          var _primaryChildFragment4 = updateSuspensePrimaryChildren(current, workInProgress, _nextPrimaryChildren3, renderLanes);
+
+          workInProgress.memoizedState = null;
+          return _primaryChildFragment4;
+        }
+      } else {
+        // The current tree is not already showing a fallback.
+        if (showFallback) {
+          // Timed out.
+          var _nextFallbackChildren3 = nextProps.fallback;
+          var _nextPrimaryChildren4 = nextProps.children;
+
+          var _fallbackChildFragment2 = updateSuspenseFallbackChildren(current, workInProgress, _nextPrimaryChildren4, _nextFallbackChildren3, renderLanes);
+
+          var _primaryChildFragment5 = workInProgress.child;
+          var _prevOffscreenState = current.child.memoizedState;
+          _primaryChildFragment5.memoizedState = _prevOffscreenState === null ? mountSuspenseOffscreenState(renderLanes) : updateSuspenseOffscreenState(_prevOffscreenState, renderLanes);
+          _primaryChildFragment5.childLanes = getRemainingWorkInPrimaryTree(current, renderLanes); // Skip the primary children, and continue working on the
+          // fallback children.
+
+          workInProgress.memoizedState = SUSPENDED_MARKER;
+          return _fallbackChildFragment2;
+        } else {
+          // Still haven't timed out. Continue rendering the children, like we
+          // normally do.
+          var _nextPrimaryChildren5 = nextProps.children;
+
+          var _primaryChildFragment6 = updateSuspensePrimaryChildren(current, workInProgress, _nextPrimaryChildren5, renderLanes);
+
+          workInProgress.memoizedState = null;
+          return _primaryChildFragment6;
+        }
+      }
+    }
+  }
+
+  function mountSuspensePrimaryChildren(workInProgress, primaryChildren, renderLanes) {
+    var mode = workInProgress.mode;
+    var primaryChildProps = {
+      mode: 'visible',
+      children: primaryChildren
+    };
+    var primaryChildFragment = createFiberFromOffscreen(primaryChildProps, mode, renderLanes, null);
+    primaryChildFragment.return = workInProgress;
+    workInProgress.child = primaryChildFragment;
+    return primaryChildFragment;
+  }
+
+  function mountSuspenseFallbackChildren(workInProgress, primaryChildren, fallbackChildren, renderLanes) {
+    var mode = workInProgress.mode;
+    var progressedPrimaryFragment = workInProgress.child;
+    var primaryChildProps = {
+      mode: 'hidden',
+      children: primaryChildren
+    };
+    var primaryChildFragment;
+    var fallbackChildFragment;
+
+    if ((mode & BlockingMode) === NoMode && progressedPrimaryFragment !== null) {
+      // In legacy mode, we commit the primary tree as if it successfully
+      // completed, even though it's in an inconsistent state.
+      primaryChildFragment = progressedPrimaryFragment;
+      primaryChildFragment.childLanes = NoLanes;
+      primaryChildFragment.pendingProps = primaryChildProps;
+
+      if ( workInProgress.mode & ProfileMode) {
+        // Reset the durations from the first pass so they aren't included in the
+        // final amounts. This seems counterintuitive, since we're intentionally
+        // not measuring part of the render phase, but this makes it match what we
+        // do in Concurrent Mode.
+        primaryChildFragment.actualDuration = 0;
+        primaryChildFragment.actualStartTime = -1;
+        primaryChildFragment.selfBaseDuration = 0;
+        primaryChildFragment.treeBaseDuration = 0;
+      }
+
+      fallbackChildFragment = createFiberFromFragment(fallbackChildren, mode, renderLanes, null);
+    } else {
+      primaryChildFragment = createFiberFromOffscreen(primaryChildProps, mode, NoLanes, null);
+      fallbackChildFragment = createFiberFromFragment(fallbackChildren, mode, renderLanes, null);
+    }
+
+    primaryChildFragment.return = workInProgress;
+    fallbackChildFragment.return = workInProgress;
+    primaryChildFragment.sibling = fallbackChildFragment;
+    workInProgress.child = primaryChildFragment;
+    return fallbackChildFragment;
+  }
+
+  function createWorkInProgressOffscreenFiber(current, offscreenProps) {
+    // The props argument to `createWorkInProgress` is `any` typed, so we use this
+    // wrapper function to constrain it.
+    return createWorkInProgress(current, offscreenProps);
+  }
+
+  function updateSuspensePrimaryChildren(current, workInProgress, primaryChildren, renderLanes) {
+    var currentPrimaryChildFragment = current.child;
+    var currentFallbackChildFragment = currentPrimaryChildFragment.sibling;
+    var primaryChildFragment = createWorkInProgressOffscreenFiber(currentPrimaryChildFragment, {
+      mode: 'visible',
+      children: primaryChildren
+    });
+
+    if ((workInProgress.mode & BlockingMode) === NoMode) {
+      primaryChildFragment.lanes = renderLanes;
+    }
+
+    primaryChildFragment.return = workInProgress;
+    primaryChildFragment.sibling = null;
+
+    if (currentFallbackChildFragment !== null) {
+      // Delete the fallback child fragment
+      currentFallbackChildFragment.nextEffect = null;
+      currentFallbackChildFragment.flags = Deletion;
+      workInProgress.firstEffect = workInProgress.lastEffect = currentFallbackChildFragment;
+    }
+
+    workInProgress.child = primaryChildFragment;
+    return primaryChildFragment;
+  }
+
+  function updateSuspenseFallbackChildren(current, workInProgress, primaryChildren, fallbackChildren, renderLanes) {
+    var mode = workInProgress.mode;
+    var currentPrimaryChildFragment = current.child;
+    var currentFallbackChildFragment = currentPrimaryChildFragment.sibling;
+    var primaryChildProps = {
+      mode: 'hidden',
+      children: primaryChildren
+    };
+    var primaryChildFragment;
+
+    if ( // In legacy mode, we commit the primary tree as if it successfully
+    // completed, even though it's in an inconsistent state.
+    (mode & BlockingMode) === NoMode && // Make sure we're on the second pass, i.e. the primary child fragment was
+    // already cloned. In legacy mode, the only case where this isn't true is
+    // when DevTools forces us to display a fallback; we skip the first render
+    // pass entirely and go straight to rendering the fallback. (In Concurrent
+    // Mode, SuspenseList can also trigger this scenario, but this is a legacy-
+    // only codepath.)
+    workInProgress.child !== currentPrimaryChildFragment) {
+      var progressedPrimaryFragment = workInProgress.child;
+      primaryChildFragment = progressedPrimaryFragment;
+      primaryChildFragment.childLanes = NoLanes;
+      primaryChildFragment.pendingProps = primaryChildProps;
+
+      if ( workInProgress.mode & ProfileMode) {
+        // Reset the durations from the first pass so they aren't included in the
+        // final amounts. This seems counterintuitive, since we're intentionally
+        // not measuring part of the render phase, but this makes it match what we
+        // do in Concurrent Mode.
+        primaryChildFragment.actualDuration = 0;
+        primaryChildFragment.actualStartTime = -1;
+        primaryChildFragment.selfBaseDuration = currentPrimaryChildFragment.selfBaseDuration;
+        primaryChildFragment.treeBaseDuration = currentPrimaryChildFragment.treeBaseDuration;
+      } // The fallback fiber was added as a deletion effect during the first pass.
+      // However, since we're going to remain on the fallback, we no longer want
+      // to delete it. So we need to remove it from the list. Deletions are stored
+      // on the same list as effects. We want to keep the effects from the primary
+      // tree. So we copy the primary child fragment's effect list, which does not
+      // include the fallback deletion effect.
+
+
+      var progressedLastEffect = primaryChildFragment.lastEffect;
+
+      if (progressedLastEffect !== null) {
+        workInProgress.firstEffect = primaryChildFragment.firstEffect;
+        workInProgress.lastEffect = progressedLastEffect;
+        progressedLastEffect.nextEffect = null;
+      } else {
+        // TODO: Reset this somewhere else? Lol legacy mode is so weird.
+        workInProgress.firstEffect = workInProgress.lastEffect = null;
+      }
+    } else {
+      primaryChildFragment = createWorkInProgressOffscreenFiber(currentPrimaryChildFragment, primaryChildProps);
+    }
+
+    var fallbackChildFragment;
+
+    if (currentFallbackChildFragment !== null) {
+      fallbackChildFragment = createWorkInProgress(currentFallbackChildFragment, fallbackChildren);
+    } else {
+      fallbackChildFragment = createFiberFromFragment(fallbackChildren, mode, renderLanes, null); // Needs a placement effect because the parent (the Suspense boundary) already
+      // mounted but this is a new fiber.
+
+      fallbackChildFragment.flags |= Placement;
+    }
+
+    fallbackChildFragment.return = workInProgress;
+    primaryChildFragment.return = workInProgress;
+    primaryChildFragment.sibling = fallbackChildFragment;
+    workInProgress.child = primaryChildFragment;
+    return fallbackChildFragment;
+  }
+
+  function scheduleWorkOnFiber(fiber, renderLanes) {
+    fiber.lanes = mergeLanes(fiber.lanes, renderLanes);
+    var alternate = fiber.alternate;
+
+    if (alternate !== null) {
+      alternate.lanes = mergeLanes(alternate.lanes, renderLanes);
+    }
+
+    scheduleWorkOnParentPath(fiber.return, renderLanes);
+  }
+
+  function propagateSuspenseContextChange(workInProgress, firstChild, renderLanes) {
+    // Mark any Suspense boundaries with fallbacks as having work to do.
+    // If they were previously forced into fallbacks, they may now be able
+    // to unblock.
+    var node = firstChild;
+
+    while (node !== null) {
+      if (node.tag === SuspenseComponent) {
+        var state = node.memoizedState;
+
+        if (state !== null) {
+          scheduleWorkOnFiber(node, renderLanes);
+        }
+      } else if (node.tag === SuspenseListComponent) {
+        // If the tail is hidden there might not be an Suspense boundaries
+        // to schedule work on. In this case we have to schedule it on the
+        // list itself.
+        // We don't have to traverse to the children of the list since
+        // the list will propagate the change when it rerenders.
+        scheduleWorkOnFiber(node, renderLanes);
+      } else if (node.child !== null) {
+        node.child.return = node;
+        node = node.child;
+        continue;
+      }
+
+      if (node === workInProgress) {
+        return;
+      }
+
+      while (node.sibling === null) {
+        if (node.return === null || node.return === workInProgress) {
+          return;
+        }
+
+        node = node.return;
+      }
+
+      node.sibling.return = node.return;
+      node = node.sibling;
+    }
+  }
+
+  function findLastContentRow(firstChild) {
+    // This is going to find the last row among these children that is already
+    // showing content on the screen, as opposed to being in fallback state or
+    // new. If a row has multiple Suspense boundaries, any of them being in the
+    // fallback state, counts as the whole row being in a fallback state.
+    // Note that the "rows" will be workInProgress, but any nested children
+    // will still be current since we haven't rendered them yet. The mounted
+    // order may not be the same as the new order. We use the new order.
+    var row = firstChild;
+    var lastContentRow = null;
+
+    while (row !== null) {
+      var currentRow = row.alternate; // New rows can't be content rows.
+
+      if (currentRow !== null && findFirstSuspended(currentRow) === null) {
+        lastContentRow = row;
+      }
+
+      row = row.sibling;
+    }
+
+    return lastContentRow;
+  }
+
+  function validateRevealOrder(revealOrder) {
+    {
+      if (revealOrder !== undefined && revealOrder !== 'forwards' && revealOrder !== 'backwards' && revealOrder !== 'together' && !didWarnAboutRevealOrder[revealOrder]) {
+        didWarnAboutRevealOrder[revealOrder] = true;
+
+        if (typeof revealOrder === 'string') {
+          switch (revealOrder.toLowerCase()) {
+            case 'together':
+            case 'forwards':
+            case 'backwards':
+              {
+                error('"%s" is not a valid value for revealOrder on <SuspenseList />. ' + 'Use lowercase "%s" instead.', revealOrder, revealOrder.toLowerCase());
+
+                break;
+              }
+
+            case 'forward':
+            case 'backward':
+              {
+                error('"%s" is not a valid value for revealOrder on <SuspenseList />. ' + 'React uses the -s suffix in the spelling. Use "%ss" instead.', revealOrder, revealOrder.toLowerCase());
+
+                break;
+              }
+
+            default:
+              error('"%s" is not a supported revealOrder on <SuspenseList />. ' + 'Did you mean "together", "forwards" or "backwards"?', revealOrder);
+
+              break;
+          }
+        } else {
+          error('%s is not a supported value for revealOrder on <SuspenseList />. ' + 'Did you mean "together", "forwards" or "backwards"?', revealOrder);
+        }
+      }
+    }
+  }
+
+  function validateTailOptions(tailMode, revealOrder) {
+    {
+      if (tailMode !== undefined && !didWarnAboutTailOptions[tailMode]) {
+        if (tailMode !== 'collapsed' && tailMode !== 'hidden') {
+          didWarnAboutTailOptions[tailMode] = true;
+
+          error('"%s" is not a supported value for tail on <SuspenseList />. ' + 'Did you mean "collapsed" or "hidden"?', tailMode);
+        } else if (revealOrder !== 'forwards' && revealOrder !== 'backwards') {
+          didWarnAboutTailOptions[tailMode] = true;
+
+          error('<SuspenseList tail="%s" /> is only valid if revealOrder is ' + '"forwards" or "backwards". ' + 'Did you mean to specify revealOrder="forwards"?', tailMode);
+        }
+      }
+    }
+  }
+
+  function validateSuspenseListNestedChild(childSlot, index) {
+    {
+      var isArray = Array.isArray(childSlot);
+      var isIterable = !isArray && typeof getIteratorFn(childSlot) === 'function';
+
+      if (isArray || isIterable) {
+        var type = isArray ? 'array' : 'iterable';
+
+        error('A nested %s was passed to row #%s in <SuspenseList />. Wrap it in ' + 'an additional SuspenseList to configure its revealOrder: ' + '<SuspenseList revealOrder=...> ... ' + '<SuspenseList revealOrder=...>{%s}</SuspenseList> ... ' + '</SuspenseList>', type, index, type);
+
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  function validateSuspenseListChildren(children, revealOrder) {
+    {
+      if ((revealOrder === 'forwards' || revealOrder === 'backwards') && children !== undefined && children !== null && children !== false) {
+        if (Array.isArray(children)) {
+          for (var i = 0; i < children.length; i++) {
+            if (!validateSuspenseListNestedChild(children[i], i)) {
+              return;
+            }
+          }
+        } else {
+          var iteratorFn = getIteratorFn(children);
+
+          if (typeof iteratorFn === 'function') {
+            var childrenIterator = iteratorFn.call(children);
+
+            if (childrenIterator) {
+              var step = childrenIterator.next();
+              var _i = 0;
+
+              for (; !step.done; step = childrenIterator.next()) {
+                if (!validateSuspenseListNestedChild(step.value, _i)) {
+                  return;
+                }
+
+                _i++;
+              }
+            }
+          } else {
+            error('A single row was passed to a <SuspenseList revealOrder="%s" />. ' + 'This is not useful since it needs multiple rows. ' + 'Did you mean to pass multiple children or an array?', revealOrder);
+          }
+        }
+      }
+    }
+  }
+
+  function initSuspenseListRenderState(workInProgress, isBackwards, tail, lastContentRow, tailMode, lastEffectBeforeRendering) {
+    var renderState = workInProgress.memoizedState;
+
+    if (renderState === null) {
+      workInProgress.memoizedState = {
+        isBackwards: isBackwards,
+        rendering: null,
+        renderingStartTime: 0,
+        last: lastContentRow,
+        tail: tail,
+        tailMode: tailMode,
+        lastEffect: lastEffectBeforeRendering
+      };
+    } else {
+      // We can reuse the existing object from previous renders.
+      renderState.isBackwards = isBackwards;
+      renderState.rendering = null;
+      renderState.renderingStartTime = 0;
+      renderState.last = lastContentRow;
+      renderState.tail = tail;
+      renderState.tailMode = tailMode;
+      renderState.lastEffect = lastEffectBeforeRendering;
+    }
+  } // This can end up rendering this component multiple passes.
+  // The first pass splits the children fibers into two sets. A head and tail.
+  // We first render the head. If anything is in fallback state, we do another
+  // pass through beginWork to rerender all children (including the tail) with
+  // the force suspend context. If the first render didn't have anything in
+  // in fallback state. Then we render each row in the tail one-by-one.
+  // That happens in the completeWork phase without going back to beginWork.
+
+
+  function updateSuspenseListComponent(current, workInProgress, renderLanes) {
+    var nextProps = workInProgress.pendingProps;
+    var revealOrder = nextProps.revealOrder;
+    var tailMode = nextProps.tail;
+    var newChildren = nextProps.children;
+    validateRevealOrder(revealOrder);
+    validateTailOptions(tailMode, revealOrder);
+    validateSuspenseListChildren(newChildren, revealOrder);
+    reconcileChildren(current, workInProgress, newChildren, renderLanes);
+    var suspenseContext = suspenseStackCursor.current;
+    var shouldForceFallback = hasSuspenseContext(suspenseContext, ForceSuspenseFallback);
+
+    if (shouldForceFallback) {
+      suspenseContext = setShallowSuspenseContext(suspenseContext, ForceSuspenseFallback);
+      workInProgress.flags |= DidCapture;
+    } else {
+      var didSuspendBefore = current !== null && (current.flags & DidCapture) !== NoFlags;
+
+      if (didSuspendBefore) {
+        // If we previously forced a fallback, we need to schedule work
+        // on any nested boundaries to let them know to try to render
+        // again. This is the same as context updating.
+        propagateSuspenseContextChange(workInProgress, workInProgress.child, renderLanes);
+      }
+
+      suspenseContext = setDefaultShallowSuspenseContext(suspenseContext);
+    }
+
+    pushSuspenseContext(workInProgress, suspenseContext);
+
+    if ((workInProgress.mode & BlockingMode) === NoMode) {
+      // In legacy mode, SuspenseList doesn't work so we just
+      // use make it a noop by treating it as the default revealOrder.
+      workInProgress.memoizedState = null;
+    } else {
+      switch (revealOrder) {
+        case 'forwards':
+          {
+            var lastContentRow = findLastContentRow(workInProgress.child);
+            var tail;
+
+            if (lastContentRow === null) {
+              // The whole list is part of the tail.
+              // TODO: We could fast path by just rendering the tail now.
+              tail = workInProgress.child;
+              workInProgress.child = null;
+            } else {
+              // Disconnect the tail rows after the content row.
+              // We're going to render them separately later.
+              tail = lastContentRow.sibling;
+              lastContentRow.sibling = null;
+            }
+
+            initSuspenseListRenderState(workInProgress, false, // isBackwards
+            tail, lastContentRow, tailMode, workInProgress.lastEffect);
+            break;
+          }
+
+        case 'backwards':
+          {
+            // We're going to find the first row that has existing content.
+            // At the same time we're going to reverse the list of everything
+            // we pass in the meantime. That's going to be our tail in reverse
+            // order.
+            var _tail = null;
+            var row = workInProgress.child;
+            workInProgress.child = null;
+
+            while (row !== null) {
+              var currentRow = row.alternate; // New rows can't be content rows.
+
+              if (currentRow !== null && findFirstSuspended(currentRow) === null) {
+                // This is the beginning of the main content.
+                workInProgress.child = row;
+                break;
+              }
+
+              var nextRow = row.sibling;
+              row.sibling = _tail;
+              _tail = row;
+              row = nextRow;
+            } // TODO: If workInProgress.child is null, we can continue on the tail immediately.
+
+
+            initSuspenseListRenderState(workInProgress, true, // isBackwards
+            _tail, null, // last
+            tailMode, workInProgress.lastEffect);
+            break;
+          }
+
+        case 'together':
+          {
+            initSuspenseListRenderState(workInProgress, false, // isBackwards
+            null, // tail
+            null, // last
+            undefined, workInProgress.lastEffect);
+            break;
+          }
+
+        default:
+          {
+            // The default reveal order is the same as not having
+            // a boundary.
+            workInProgress.memoizedState = null;
+          }
+      }
+    }
+
+    return workInProgress.child;
+  }
+
+  function updatePortalComponent(current, workInProgress, renderLanes) {
+    pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo);
+    var nextChildren = workInProgress.pendingProps;
+
+    if (current === null) {
+      // Portals are special because we don't append the children during mount
+      // but at commit. Therefore we need to track insertions which the normal
+      // flow doesn't do during mount. This doesn't happen at the root because
+      // the root always starts with a "current" with a null child.
+      // TODO: Consider unifying this with how the root works.
+      workInProgress.child = reconcileChildFibers(workInProgress, null, nextChildren, renderLanes);
+    } else {
+      reconcileChildren(current, workInProgress, nextChildren, renderLanes);
+    }
+
+    return workInProgress.child;
+  }
+
+  var hasWarnedAboutUsingNoValuePropOnContextProvider = false;
+
+  function updateContextProvider(current, workInProgress, renderLanes) {
+    var providerType = workInProgress.type;
+    var context = providerType._context;
+    var newProps = workInProgress.pendingProps;
+    var oldProps = workInProgress.memoizedProps;
+    var newValue = newProps.value;
+
+    {
+      if (!('value' in newProps)) {
+        if (!hasWarnedAboutUsingNoValuePropOnContextProvider) {
+          hasWarnedAboutUsingNoValuePropOnContextProvider = true;
+
+          error('The `value` prop is required for the `<Context.Provider>`. Did you misspell it or forget to pass it?');
+        }
+      }
+
+      var providerPropTypes = workInProgress.type.propTypes;
+
+      if (providerPropTypes) {
+        checkPropTypes(providerPropTypes, newProps, 'prop', 'Context.Provider');
+      }
+    }
+
+    pushProvider(workInProgress, newValue);
+
+    if (oldProps !== null) {
+      var oldValue = oldProps.value;
+      var changedBits = calculateChangedBits(context, newValue, oldValue);
+
+      if (changedBits === 0) {
+        // No change. Bailout early if children are the same.
+        if (oldProps.children === newProps.children && !hasContextChanged()) {
+          return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes);
+        }
+      } else {
+        // The context value changed. Search for matching consumers and schedule
+        // them to update.
+        propagateContextChange(workInProgress, context, changedBits, renderLanes);
+      }
+    }
+
+    var newChildren = newProps.children;
+    reconcileChildren(current, workInProgress, newChildren, renderLanes);
+    return workInProgress.child;
+  }
+
+  var hasWarnedAboutUsingContextAsConsumer = false;
+
+  function updateContextConsumer(current, workInProgress, renderLanes) {
+    var context = workInProgress.type; // The logic below for Context differs depending on PROD or DEV mode. In
+    // DEV mode, we create a separate object for Context.Consumer that acts
+    // like a proxy to Context. This proxy object adds unnecessary code in PROD
+    // so we use the old behaviour (Context.Consumer references Context) to
+    // reduce size and overhead. The separate object references context via
+    // a property called "_context", which also gives us the ability to check
+    // in DEV mode if this property exists or not and warn if it does not.
+
+    {
+      if (context._context === undefined) {
+        // This may be because it's a Context (rather than a Consumer).
+        // Or it may be because it's older React where they're the same thing.
+        // We only want to warn if we're sure it's a new React.
+        if (context !== context.Consumer) {
+          if (!hasWarnedAboutUsingContextAsConsumer) {
+            hasWarnedAboutUsingContextAsConsumer = true;
+
+            error('Rendering <Context> directly is not supported and will be removed in ' + 'a future major release. Did you mean to render <Context.Consumer> instead?');
+          }
+        }
+      } else {
+        context = context._context;
+      }
+    }
+
+    var newProps = workInProgress.pendingProps;
+    var render = newProps.children;
+
+    {
+      if (typeof render !== 'function') {
+        error('A context consumer was rendered with multiple children, or a child ' + "that isn't a function. A context consumer expects a single child " + 'that is a function. If you did pass a function, make sure there ' + 'is no trailing or leading whitespace around it.');
+      }
+    }
+
+    prepareToReadContext(workInProgress, renderLanes);
+    var newValue = readContext(context, newProps.unstable_observedBits);
+    var newChildren;
+
+    {
+      ReactCurrentOwner$1.current = workInProgress;
+      setIsRendering(true);
+      newChildren = render(newValue);
+      setIsRendering(false);
+    } // React DevTools reads this flag.
+
+
+    workInProgress.flags |= PerformedWork;
+    reconcileChildren(current, workInProgress, newChildren, renderLanes);
+    return workInProgress.child;
+  }
+
+  function markWorkInProgressReceivedUpdate() {
+    didReceiveUpdate = true;
+  }
+
+  function bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes) {
+    if (current !== null) {
+      // Reuse previous dependencies
+      workInProgress.dependencies = current.dependencies;
+    }
+
+    {
+      // Don't update "base" render times for bailouts.
+      stopProfilerTimerIfRunning();
+    }
+
+    markSkippedUpdateLanes(workInProgress.lanes); // Check if the children have any pending work.
+
+    if (!includesSomeLane(renderLanes, workInProgress.childLanes)) {
+      // The children don't have any work either. We can skip them.
+      // TODO: Once we add back resuming, we should check if the children are
+      // a work-in-progress set. If so, we need to transfer their effects.
+      return null;
+    } else {
+      // This fiber doesn't have work, but its subtree does. Clone the child
+      // fibers and continue.
+      cloneChildFibers(current, workInProgress);
+      return workInProgress.child;
+    }
+  }
+
+  function remountFiber(current, oldWorkInProgress, newWorkInProgress) {
+    {
+      var returnFiber = oldWorkInProgress.return;
+
+      if (returnFiber === null) {
+        throw new Error('Cannot swap the root fiber.');
+      } // Disconnect from the old current.
+      // It will get deleted.
+
+
+      current.alternate = null;
+      oldWorkInProgress.alternate = null; // Connect to the new tree.
+
+      newWorkInProgress.index = oldWorkInProgress.index;
+      newWorkInProgress.sibling = oldWorkInProgress.sibling;
+      newWorkInProgress.return = oldWorkInProgress.return;
+      newWorkInProgress.ref = oldWorkInProgress.ref; // Replace the child/sibling pointers above it.
+
+      if (oldWorkInProgress === returnFiber.child) {
+        returnFiber.child = newWorkInProgress;
+      } else {
+        var prevSibling = returnFiber.child;
+
+        if (prevSibling === null) {
+          throw new Error('Expected parent to have a child.');
+        }
+
+        while (prevSibling.sibling !== oldWorkInProgress) {
+          prevSibling = prevSibling.sibling;
+
+          if (prevSibling === null) {
+            throw new Error('Expected to find the previous sibling.');
+          }
+        }
+
+        prevSibling.sibling = newWorkInProgress;
+      } // Delete the old fiber and place the new one.
+      // Since the old fiber is disconnected, we have to schedule it manually.
+
+
+      var last = returnFiber.lastEffect;
+
+      if (last !== null) {
+        last.nextEffect = current;
+        returnFiber.lastEffect = current;
+      } else {
+        returnFiber.firstEffect = returnFiber.lastEffect = current;
+      }
+
+      current.nextEffect = null;
+      current.flags = Deletion;
+      newWorkInProgress.flags |= Placement; // Restart work from the new fiber.
+
+      return newWorkInProgress;
+    }
+  }
+
+  function beginWork(current, workInProgress, renderLanes) {
+    var updateLanes = workInProgress.lanes;
+
+    {
+      if (workInProgress._debugNeedsRemount && current !== null) {
+        // This will restart the begin phase with a new fiber.
+        return remountFiber(current, workInProgress, createFiberFromTypeAndProps(workInProgress.type, workInProgress.key, workInProgress.pendingProps, workInProgress._debugOwner || null, workInProgress.mode, workInProgress.lanes));
+      }
+    }
+
+    if (current !== null) {
+      var oldProps = current.memoizedProps;
+      var newProps = workInProgress.pendingProps;
+
+      if (oldProps !== newProps || hasContextChanged() || ( // Force a re-render if the implementation changed due to hot reload:
+       workInProgress.type !== current.type )) {
+        // If props or context changed, mark the fiber as having performed work.
+        // This may be unset if the props are determined to be equal later (memo).
+        didReceiveUpdate = true;
+      } else if (!includesSomeLane(renderLanes, updateLanes)) {
+        didReceiveUpdate = false; // This fiber does not have any pending work. Bailout without entering
+        // the begin phase. There's still some bookkeeping we that needs to be done
+        // in this optimized path, mostly pushing stuff onto the stack.
+
+        switch (workInProgress.tag) {
+          case HostRoot:
+            pushHostRootContext(workInProgress);
+            resetHydrationState();
+            break;
+
+          case HostComponent:
+            pushHostContext(workInProgress);
+            break;
+
+          case ClassComponent:
+            {
+              var Component = workInProgress.type;
+
+              if (isContextProvider(Component)) {
+                pushContextProvider(workInProgress);
+              }
+
+              break;
+            }
+
+          case HostPortal:
+            pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo);
+            break;
+
+          case ContextProvider:
+            {
+              var newValue = workInProgress.memoizedProps.value;
+              pushProvider(workInProgress, newValue);
+              break;
+            }
+
+          case Profiler:
+            {
+              // Profiler should only call onRender when one of its descendants actually rendered.
+              var hasChildWork = includesSomeLane(renderLanes, workInProgress.childLanes);
+
+              if (hasChildWork) {
+                workInProgress.flags |= Update;
+              } // Reset effect durations for the next eventual effect phase.
+              // These are reset during render to allow the DevTools commit hook a chance to read them,
+
+
+              var stateNode = workInProgress.stateNode;
+              stateNode.effectDuration = 0;
+              stateNode.passiveEffectDuration = 0;
+            }
+
+            break;
+
+          case SuspenseComponent:
+            {
+              var state = workInProgress.memoizedState;
+
+              if (state !== null) {
+                // whether to retry the primary children, or to skip over it and
+                // go straight to the fallback. Check the priority of the primary
+                // child fragment.
+
+
+                var primaryChildFragment = workInProgress.child;
+                var primaryChildLanes = primaryChildFragment.childLanes;
+
+                if (includesSomeLane(renderLanes, primaryChildLanes)) {
+                  // The primary children have pending work. Use the normal path
+                  // to attempt to render the primary children again.
+                  return updateSuspenseComponent(current, workInProgress, renderLanes);
+                } else {
+                  // The primary child fragment does not have pending work marked
+                  // on it
+                  pushSuspenseContext(workInProgress, setDefaultShallowSuspenseContext(suspenseStackCursor.current)); // The primary children do not have pending work with sufficient
+                  // priority. Bailout.
+
+                  var child = bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes);
+
+                  if (child !== null) {
+                    // The fallback children have pending work. Skip over the
+                    // primary children and work on the fallback.
+                    return child.sibling;
+                  } else {
+                    return null;
+                  }
+                }
+              } else {
+                pushSuspenseContext(workInProgress, setDefaultShallowSuspenseContext(suspenseStackCursor.current));
+              }
+
+              break;
+            }
+
+          case SuspenseListComponent:
+            {
+              var didSuspendBefore = (current.flags & DidCapture) !== NoFlags;
+
+              var _hasChildWork = includesSomeLane(renderLanes, workInProgress.childLanes);
+
+              if (didSuspendBefore) {
+                if (_hasChildWork) {
+                  // If something was in fallback state last time, and we have all the
+                  // same children then we're still in progressive loading state.
+                  // Something might get unblocked by state updates or retries in the
+                  // tree which will affect the tail. So we need to use the normal
+                  // path to compute the correct tail.
+                  return updateSuspenseListComponent(current, workInProgress, renderLanes);
+                } // If none of the children had any work, that means that none of
+                // them got retried so they'll still be blocked in the same way
+                // as before. We can fast bail out.
+
+
+                workInProgress.flags |= DidCapture;
+              } // If nothing suspended before and we're rendering the same children,
+              // then the tail doesn't matter. Anything new that suspends will work
+              // in the "together" mode, so we can continue from the state we had.
+
+
+              var renderState = workInProgress.memoizedState;
+
+              if (renderState !== null) {
+                // Reset to the "together" mode in case we've started a different
+                // update in the past but didn't complete it.
+                renderState.rendering = null;
+                renderState.tail = null;
+                renderState.lastEffect = null;
+              }
+
+              pushSuspenseContext(workInProgress, suspenseStackCursor.current);
+
+              if (_hasChildWork) {
+                break;
+              } else {
+                // If none of the children had any work, that means that none of
+                // them got retried so they'll still be blocked in the same way
+                // as before. We can fast bail out.
+                return null;
+              }
+            }
+
+          case OffscreenComponent:
+          case LegacyHiddenComponent:
+            {
+              // Need to check if the tree still needs to be deferred. This is
+              // almost identical to the logic used in the normal update path,
+              // so we'll just enter that. The only difference is we'll bail out
+              // at the next level instead of this one, because the child props
+              // have not changed. Which is fine.
+              // TODO: Probably should refactor `beginWork` to split the bailout
+              // path from the normal path. I'm tempted to do a labeled break here
+              // but I won't :)
+              workInProgress.lanes = NoLanes;
+              return updateOffscreenComponent(current, workInProgress, renderLanes);
+            }
+        }
+
+        return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes);
+      } else {
+        if ((current.flags & ForceUpdateForLegacySuspense) !== NoFlags) {
+          // This is a special case that only exists for legacy mode.
+          // See https://github.com/facebook/react/pull/19216.
+          didReceiveUpdate = true;
+        } else {
+          // An update was scheduled on this fiber, but there are no new props
+          // nor legacy context. Set this to false. If an update queue or context
+          // consumer produces a changed value, it will set this to true. Otherwise,
+          // the component will assume the children have not changed and bail out.
+          didReceiveUpdate = false;
+        }
+      }
+    } else {
+      didReceiveUpdate = false;
+    } // Before entering the begin phase, clear pending update priority.
+    // TODO: This assumes that we're about to evaluate the component and process
+    // the update queue. However, there's an exception: SimpleMemoComponent
+    // sometimes bails out later in the begin phase. This indicates that we should
+    // move this assignment out of the common path and into each branch.
+
+
+    workInProgress.lanes = NoLanes;
+
+    switch (workInProgress.tag) {
+      case IndeterminateComponent:
+        {
+          return mountIndeterminateComponent(current, workInProgress, workInProgress.type, renderLanes);
+        }
+
+      case LazyComponent:
+        {
+          var elementType = workInProgress.elementType;
+          return mountLazyComponent(current, workInProgress, elementType, updateLanes, renderLanes);
+        }
+
+      case FunctionComponent:
+        {
+          var _Component = workInProgress.type;
+          var unresolvedProps = workInProgress.pendingProps;
+          var resolvedProps = workInProgress.elementType === _Component ? unresolvedProps : resolveDefaultProps(_Component, unresolvedProps);
+          return updateFunctionComponent(current, workInProgress, _Component, resolvedProps, renderLanes);
+        }
+
+      case ClassComponent:
+        {
+          var _Component2 = workInProgress.type;
+          var _unresolvedProps = workInProgress.pendingProps;
+
+          var _resolvedProps = workInProgress.elementType === _Component2 ? _unresolvedProps : resolveDefaultProps(_Component2, _unresolvedProps);
+
+          return updateClassComponent(current, workInProgress, _Component2, _resolvedProps, renderLanes);
+        }
+
+      case HostRoot:
+        return updateHostRoot(current, workInProgress, renderLanes);
+
+      case HostComponent:
+        return updateHostComponent(current, workInProgress, renderLanes);
+
+      case HostText:
+        return updateHostText(current, workInProgress);
+
+      case SuspenseComponent:
+        return updateSuspenseComponent(current, workInProgress, renderLanes);
+
+      case HostPortal:
+        return updatePortalComponent(current, workInProgress, renderLanes);
+
+      case ForwardRef:
+        {
+          var type = workInProgress.type;
+          var _unresolvedProps2 = workInProgress.pendingProps;
+
+          var _resolvedProps2 = workInProgress.elementType === type ? _unresolvedProps2 : resolveDefaultProps(type, _unresolvedProps2);
+
+          return updateForwardRef(current, workInProgress, type, _resolvedProps2, renderLanes);
+        }
+
+      case Fragment:
+        return updateFragment(current, workInProgress, renderLanes);
+
+      case Mode:
+        return updateMode(current, workInProgress, renderLanes);
+
+      case Profiler:
+        return updateProfiler(current, workInProgress, renderLanes);
+
+      case ContextProvider:
+        return updateContextProvider(current, workInProgress, renderLanes);
+
+      case ContextConsumer:
+        return updateContextConsumer(current, workInProgress, renderLanes);
+
+      case MemoComponent:
+        {
+          var _type2 = workInProgress.type;
+          var _unresolvedProps3 = workInProgress.pendingProps; // Resolve outer props first, then resolve inner props.
+
+          var _resolvedProps3 = resolveDefaultProps(_type2, _unresolvedProps3);
+
+          {
+            if (workInProgress.type !== workInProgress.elementType) {
+              var outerPropTypes = _type2.propTypes;
+
+              if (outerPropTypes) {
+                checkPropTypes(outerPropTypes, _resolvedProps3, // Resolved for outer only
+                'prop', getComponentName(_type2));
+              }
+            }
+          }
+
+          _resolvedProps3 = resolveDefaultProps(_type2.type, _resolvedProps3);
+          return updateMemoComponent(current, workInProgress, _type2, _resolvedProps3, updateLanes, renderLanes);
+        }
+
+      case SimpleMemoComponent:
+        {
+          return updateSimpleMemoComponent(current, workInProgress, workInProgress.type, workInProgress.pendingProps, updateLanes, renderLanes);
+        }
+
+      case IncompleteClassComponent:
+        {
+          var _Component3 = workInProgress.type;
+          var _unresolvedProps4 = workInProgress.pendingProps;
+
+          var _resolvedProps4 = workInProgress.elementType === _Component3 ? _unresolvedProps4 : resolveDefaultProps(_Component3, _unresolvedProps4);
+
+          return mountIncompleteClassComponent(current, workInProgress, _Component3, _resolvedProps4, renderLanes);
+        }
+
+      case SuspenseListComponent:
+        {
+          return updateSuspenseListComponent(current, workInProgress, renderLanes);
+        }
+
+      case FundamentalComponent:
+        {
+
+          break;
+        }
+
+      case ScopeComponent:
+        {
+
+          break;
+        }
+
+      case Block:
+        {
+
+          break;
+        }
+
+      case OffscreenComponent:
+        {
+          return updateOffscreenComponent(current, workInProgress, renderLanes);
+        }
+
+      case LegacyHiddenComponent:
+        {
+          return updateLegacyHiddenComponent(current, workInProgress, renderLanes);
+        }
+    }
+
+    {
+      {
+        throw Error( "Unknown unit of work tag (" + workInProgress.tag + "). This error is likely caused by a bug in React. Please file an issue." );
+      }
+    }
+  }
+
+  function markUpdate(workInProgress) {
+    // Tag the fiber with an update effect. This turns a Placement into
+    // a PlacementAndUpdate.
+    workInProgress.flags |= Update;
+  }
+
+  function markRef$1(workInProgress) {
+    workInProgress.flags |= Ref;
+  }
+
+  var appendAllChildren;
+  var updateHostContainer;
+  var updateHostComponent$1;
+  var updateHostText$1;
+
+  {
+    // Mutation mode
+    appendAllChildren = function (parent, workInProgress, needsVisibilityToggle, isHidden) {
+      // We only have the top Fiber that was created but we need recurse down its
+      // children to find all the terminal nodes.
+      var node = workInProgress.child;
+
+      while (node !== null) {
+        if (node.tag === HostComponent || node.tag === HostText) {
+          appendInitialChild(parent, node.stateNode);
+        } else if (node.tag === HostPortal) ; else if (node.child !== null) {
+          node.child.return = node;
+          node = node.child;
+          continue;
+        }
+
+        if (node === workInProgress) {
+          return;
+        }
+
+        while (node.sibling === null) {
+          if (node.return === null || node.return === workInProgress) {
+            return;
+          }
+
+          node = node.return;
+        }
+
+        node.sibling.return = node.return;
+        node = node.sibling;
+      }
+    };
+
+    updateHostContainer = function (workInProgress) {// Noop
+    };
+
+    updateHostComponent$1 = function (current, workInProgress, type, newProps, rootContainerInstance) {
+      // If we have an alternate, that means this is an update and we need to
+      // schedule a side-effect to do the updates.
+      var oldProps = current.memoizedProps;
+
+      if (oldProps === newProps) {
+        // In mutation mode, this is sufficient for a bailout because
+        // we won't touch this node even if children changed.
+        return;
+      } // If we get updated because one of our children updated, we don't
+      // have newProps so we'll have to reuse them.
+      // TODO: Split the update API as separate for the props vs. children.
+      // Even better would be if children weren't special cased at all tho.
+
+
+      var instance = workInProgress.stateNode;
+      var currentHostContext = getHostContext(); // TODO: Experiencing an error where oldProps is null. Suggests a host
+      // component is hitting the resume path. Figure out why. Possibly
+      // related to `hidden`.
+
+      var updatePayload = prepareUpdate(instance, type, oldProps, newProps, rootContainerInstance, currentHostContext); // TODO: Type this specific to this type of component.
+
+      workInProgress.updateQueue = updatePayload; // If the update payload indicates that there is a change or if there
+      // is a new ref we mark this as an update. All the work is done in commitWork.
+
+      if (updatePayload) {
+        markUpdate(workInProgress);
+      }
+    };
+
+    updateHostText$1 = function (current, workInProgress, oldText, newText) {
+      // If the text differs, mark it as an update. All the work in done in commitWork.
+      if (oldText !== newText) {
+        markUpdate(workInProgress);
+      }
+    };
+  }
+
+  function cutOffTailIfNeeded(renderState, hasRenderedATailFallback) {
+    if (getIsHydrating()) {
+      // If we're hydrating, we should consume as many items as we can
+      // so we don't leave any behind.
+      return;
+    }
+
+    switch (renderState.tailMode) {
+      case 'hidden':
+        {
+          // Any insertions at the end of the tail list after this point
+          // should be invisible. If there are already mounted boundaries
+          // anything before them are not considered for collapsing.
+          // Therefore we need to go through the whole tail to find if
+          // there are any.
+          var tailNode = renderState.tail;
+          var lastTailNode = null;
+
+          while (tailNode !== null) {
+            if (tailNode.alternate !== null) {
+              lastTailNode = tailNode;
+            }
+
+            tailNode = tailNode.sibling;
+          } // Next we're simply going to delete all insertions after the
+          // last rendered item.
+
+
+          if (lastTailNode === null) {
+            // All remaining items in the tail are insertions.
+            renderState.tail = null;
+          } else {
+            // Detach the insertion after the last node that was already
+            // inserted.
+            lastTailNode.sibling = null;
+          }
+
+          break;
+        }
+
+      case 'collapsed':
+        {
+          // Any insertions at the end of the tail list after this point
+          // should be invisible. If there are already mounted boundaries
+          // anything before them are not considered for collapsing.
+          // Therefore we need to go through the whole tail to find if
+          // there are any.
+          var _tailNode = renderState.tail;
+          var _lastTailNode = null;
+
+          while (_tailNode !== null) {
+            if (_tailNode.alternate !== null) {
+              _lastTailNode = _tailNode;
+            }
+
+            _tailNode = _tailNode.sibling;
+          } // Next we're simply going to delete all insertions after the
+          // last rendered item.
+
+
+          if (_lastTailNode === null) {
+            // All remaining items in the tail are insertions.
+            if (!hasRenderedATailFallback && renderState.tail !== null) {
+              // We suspended during the head. We want to show at least one
+              // row at the tail. So we'll keep on and cut off the rest.
+              renderState.tail.sibling = null;
+            } else {
+              renderState.tail = null;
+            }
+          } else {
+            // Detach the insertion after the last node that was already
+            // inserted.
+            _lastTailNode.sibling = null;
+          }
+
+          break;
+        }
+    }
+  }
+
+  function completeWork(current, workInProgress, renderLanes) {
+    var newProps = workInProgress.pendingProps;
+
+    switch (workInProgress.tag) {
+      case IndeterminateComponent:
+      case LazyComponent:
+      case SimpleMemoComponent:
+      case FunctionComponent:
+      case ForwardRef:
+      case Fragment:
+      case Mode:
+      case Profiler:
+      case ContextConsumer:
+      case MemoComponent:
+        return null;
+
+      case ClassComponent:
+        {
+          var Component = workInProgress.type;
+
+          if (isContextProvider(Component)) {
+            popContext(workInProgress);
+          }
+
+          return null;
+        }
+
+      case HostRoot:
+        {
+          popHostContainer(workInProgress);
+          popTopLevelContextObject(workInProgress);
+          resetWorkInProgressVersions();
+          var fiberRoot = workInProgress.stateNode;
+
+          if (fiberRoot.pendingContext) {
+            fiberRoot.context = fiberRoot.pendingContext;
+            fiberRoot.pendingContext = null;
+          }
+
+          if (current === null || current.child === null) {
+            // If we hydrated, pop so that we can delete any remaining children
+            // that weren't hydrated.
+            var wasHydrated = popHydrationState(workInProgress);
+
+            if (wasHydrated) {
+              // If we hydrated, then we'll need to schedule an update for
+              // the commit side-effects on the root.
+              markUpdate(workInProgress);
+            } else if (!fiberRoot.hydrate) {
+              // Schedule an effect to clear this container at the start of the next commit.
+              // This handles the case of React rendering into a container with previous children.
+              // It's also safe to do for updates too, because current.child would only be null
+              // if the previous render was null (so the the container would already be empty).
+              workInProgress.flags |= Snapshot;
+            }
+          }
+
+          updateHostContainer(workInProgress);
+          return null;
+        }
+
+      case HostComponent:
+        {
+          popHostContext(workInProgress);
+          var rootContainerInstance = getRootHostContainer();
+          var type = workInProgress.type;
+
+          if (current !== null && workInProgress.stateNode != null) {
+            updateHostComponent$1(current, workInProgress, type, newProps, rootContainerInstance);
+
+            if (current.ref !== workInProgress.ref) {
+              markRef$1(workInProgress);
+            }
+          } else {
+            if (!newProps) {
+              if (!(workInProgress.stateNode !== null)) {
+                {
+                  throw Error( "We must have new props for new mounts. This error is likely caused by a bug in React. Please file an issue." );
+                }
+              } // This can happen when we abort work.
+
+
+              return null;
+            }
+
+            var currentHostContext = getHostContext(); // TODO: Move createInstance to beginWork and keep it on a context
+            // "stack" as the parent. Then append children as we go in beginWork
+            // or completeWork depending on whether we want to add them top->down or
+            // bottom->up. Top->down is faster in IE11.
+
+            var _wasHydrated = popHydrationState(workInProgress);
+
+            if (_wasHydrated) {
+              // TODO: Move this and createInstance step into the beginPhase
+              // to consolidate.
+              if (prepareToHydrateHostInstance(workInProgress, rootContainerInstance, currentHostContext)) {
+                // If changes to the hydrated node need to be applied at the
+                // commit-phase we mark this as such.
+                markUpdate(workInProgress);
+              }
+            } else {
+              var instance = createInstance(type, newProps, rootContainerInstance, currentHostContext, workInProgress);
+              appendAllChildren(instance, workInProgress, false, false);
+              workInProgress.stateNode = instance; // Certain renderers require commit-time effects for initial mount.
+              // (eg DOM renderer supports auto-focus for certain elements).
+              // Make sure such renderers get scheduled for later work.
+
+              if (finalizeInitialChildren(instance, type, newProps, rootContainerInstance)) {
+                markUpdate(workInProgress);
+              }
+            }
+
+            if (workInProgress.ref !== null) {
+              // If there is a ref on a host node we need to schedule a callback
+              markRef$1(workInProgress);
+            }
+          }
+
+          return null;
+        }
+
+      case HostText:
+        {
+          var newText = newProps;
+
+          if (current && workInProgress.stateNode != null) {
+            var oldText = current.memoizedProps; // If we have an alternate, that means this is an update and we need
+            // to schedule a side-effect to do the updates.
+
+            updateHostText$1(current, workInProgress, oldText, newText);
+          } else {
+            if (typeof newText !== 'string') {
+              if (!(workInProgress.stateNode !== null)) {
+                {
+                  throw Error( "We must have new props for new mounts. This error is likely caused by a bug in React. Please file an issue." );
+                }
+              } // This can happen when we abort work.
+
+            }
+
+            var _rootContainerInstance = getRootHostContainer();
+
+            var _currentHostContext = getHostContext();
+
+            var _wasHydrated2 = popHydrationState(workInProgress);
+
+            if (_wasHydrated2) {
+              if (prepareToHydrateHostTextInstance(workInProgress)) {
+                markUpdate(workInProgress);
+              }
+            } else {
+              workInProgress.stateNode = createTextInstance(newText, _rootContainerInstance, _currentHostContext, workInProgress);
+            }
+          }
+
+          return null;
+        }
+
+      case SuspenseComponent:
+        {
+          popSuspenseContext(workInProgress);
+          var nextState = workInProgress.memoizedState;
+
+          if ((workInProgress.flags & DidCapture) !== NoFlags) {
+            // Something suspended. Re-render with the fallback children.
+            workInProgress.lanes = renderLanes; // Do not reset the effect list.
+
+            if ( (workInProgress.mode & ProfileMode) !== NoMode) {
+              transferActualDuration(workInProgress);
+            }
+
+            return workInProgress;
+          }
+
+          var nextDidTimeout = nextState !== null;
+          var prevDidTimeout = false;
+
+          if (current === null) {
+            if (workInProgress.memoizedProps.fallback !== undefined) {
+              popHydrationState(workInProgress);
+            }
+          } else {
+            var prevState = current.memoizedState;
+            prevDidTimeout = prevState !== null;
+          }
+
+          if (nextDidTimeout && !prevDidTimeout) {
+            // If this subtreee is running in blocking mode we can suspend,
+            // otherwise we won't suspend.
+            // TODO: This will still suspend a synchronous tree if anything
+            // in the concurrent tree already suspended during this render.
+            // This is a known bug.
+            if ((workInProgress.mode & BlockingMode) !== NoMode) {
+              // TODO: Move this back to throwException because this is too late
+              // if this is a large tree which is common for initial loads. We
+              // don't know if we should restart a render or not until we get
+              // this marker, and this is too late.
+              // If this render already had a ping or lower pri updates,
+              // and this is the first time we know we're going to suspend we
+              // should be able to immediately restart from within throwException.
+              var hasInvisibleChildContext = current === null && workInProgress.memoizedProps.unstable_avoidThisFallback !== true;
+
+              if (hasInvisibleChildContext || hasSuspenseContext(suspenseStackCursor.current, InvisibleParentSuspenseContext)) {
+                // If this was in an invisible tree or a new render, then showing
+                // this boundary is ok.
+                renderDidSuspend();
+              } else {
+                // Otherwise, we're going to have to hide content so we should
+                // suspend for longer if possible.
+                renderDidSuspendDelayIfPossible();
+              }
+            }
+          }
+
+          {
+            // TODO: Only schedule updates if these values are non equal, i.e. it changed.
+            if (nextDidTimeout || prevDidTimeout) {
+              // If this boundary just timed out, schedule an effect to attach a
+              // retry listener to the promise. This flag is also used to hide the
+              // primary children. In mutation mode, we also need the flag to
+              // *unhide* children that were previously hidden, so check if this
+              // is currently timed out, too.
+              workInProgress.flags |= Update;
+            }
+          }
+
+          return null;
+        }
+
+      case HostPortal:
+        popHostContainer(workInProgress);
+        updateHostContainer(workInProgress);
+
+        if (current === null) {
+          preparePortalMount(workInProgress.stateNode.containerInfo);
+        }
+
+        return null;
+
+      case ContextProvider:
+        // Pop provider fiber
+        popProvider(workInProgress);
+        return null;
+
+      case IncompleteClassComponent:
+        {
+          // Same as class component case. I put it down here so that the tags are
+          // sequential to ensure this switch is compiled to a jump table.
+          var _Component = workInProgress.type;
+
+          if (isContextProvider(_Component)) {
+            popContext(workInProgress);
+          }
+
+          return null;
+        }
+
+      case SuspenseListComponent:
+        {
+          popSuspenseContext(workInProgress);
+          var renderState = workInProgress.memoizedState;
+
+          if (renderState === null) {
+            // We're running in the default, "independent" mode.
+            // We don't do anything in this mode.
+            return null;
+          }
+
+          var didSuspendAlready = (workInProgress.flags & DidCapture) !== NoFlags;
+          var renderedTail = renderState.rendering;
+
+          if (renderedTail === null) {
+            // We just rendered the head.
+            if (!didSuspendAlready) {
+              // This is the first pass. We need to figure out if anything is still
+              // suspended in the rendered set.
+              // If new content unsuspended, but there's still some content that
+              // didn't. Then we need to do a second pass that forces everything
+              // to keep showing their fallbacks.
+              // We might be suspended if something in this render pass suspended, or
+              // something in the previous committed pass suspended. Otherwise,
+              // there's no chance so we can skip the expensive call to
+              // findFirstSuspended.
+              var cannotBeSuspended = renderHasNotSuspendedYet() && (current === null || (current.flags & DidCapture) === NoFlags);
+
+              if (!cannotBeSuspended) {
+                var row = workInProgress.child;
+
+                while (row !== null) {
+                  var suspended = findFirstSuspended(row);
+
+                  if (suspended !== null) {
+                    didSuspendAlready = true;
+                    workInProgress.flags |= DidCapture;
+                    cutOffTailIfNeeded(renderState, false); // If this is a newly suspended tree, it might not get committed as
+                    // part of the second pass. In that case nothing will subscribe to
+                    // its thennables. Instead, we'll transfer its thennables to the
+                    // SuspenseList so that it can retry if they resolve.
+                    // There might be multiple of these in the list but since we're
+                    // going to wait for all of them anyway, it doesn't really matter
+                    // which ones gets to ping. In theory we could get clever and keep
+                    // track of how many dependencies remain but it gets tricky because
+                    // in the meantime, we can add/remove/change items and dependencies.
+                    // We might bail out of the loop before finding any but that
+                    // doesn't matter since that means that the other boundaries that
+                    // we did find already has their listeners attached.
+
+                    var newThennables = suspended.updateQueue;
+
+                    if (newThennables !== null) {
+                      workInProgress.updateQueue = newThennables;
+                      workInProgress.flags |= Update;
+                    } // Rerender the whole list, but this time, we'll force fallbacks
+                    // to stay in place.
+                    // Reset the effect list before doing the second pass since that's now invalid.
+
+
+                    if (renderState.lastEffect === null) {
+                      workInProgress.firstEffect = null;
+                    }
+
+                    workInProgress.lastEffect = renderState.lastEffect; // Reset the child fibers to their original state.
+
+                    resetChildFibers(workInProgress, renderLanes); // Set up the Suspense Context to force suspense and immediately
+                    // rerender the children.
+
+                    pushSuspenseContext(workInProgress, setShallowSuspenseContext(suspenseStackCursor.current, ForceSuspenseFallback));
+                    return workInProgress.child;
+                  }
+
+                  row = row.sibling;
+                }
+              }
+
+              if (renderState.tail !== null && now() > getRenderTargetTime()) {
+                // We have already passed our CPU deadline but we still have rows
+                // left in the tail. We'll just give up further attempts to render
+                // the main content and only render fallbacks.
+                workInProgress.flags |= DidCapture;
+                didSuspendAlready = true;
+                cutOffTailIfNeeded(renderState, false); // Since nothing actually suspended, there will nothing to ping this
+                // to get it started back up to attempt the next item. While in terms
+                // of priority this work has the same priority as this current render,
+                // it's not part of the same transition once the transition has
+                // committed. If it's sync, we still want to yield so that it can be
+                // painted. Conceptually, this is really the same as pinging.
+                // We can use any RetryLane even if it's the one currently rendering
+                // since we're leaving it behind on this node.
+
+                workInProgress.lanes = SomeRetryLane;
+
+                {
+                  markSpawnedWork(SomeRetryLane);
+                }
+              }
+            } else {
+              cutOffTailIfNeeded(renderState, false);
+            } // Next we're going to render the tail.
+
+          } else {
+            // Append the rendered row to the child list.
+            if (!didSuspendAlready) {
+              var _suspended = findFirstSuspended(renderedTail);
+
+              if (_suspended !== null) {
+                workInProgress.flags |= DidCapture;
+                didSuspendAlready = true; // Ensure we transfer the update queue to the parent so that it doesn't
+                // get lost if this row ends up dropped during a second pass.
+
+                var _newThennables = _suspended.updateQueue;
+
+                if (_newThennables !== null) {
+                  workInProgress.updateQueue = _newThennables;
+                  workInProgress.flags |= Update;
+                }
+
+                cutOffTailIfNeeded(renderState, true); // This might have been modified.
+
+                if (renderState.tail === null && renderState.tailMode === 'hidden' && !renderedTail.alternate && !getIsHydrating() // We don't cut it if we're hydrating.
+                ) {
+                    // We need to delete the row we just rendered.
+                    // Reset the effect list to what it was before we rendered this
+                    // child. The nested children have already appended themselves.
+                    var lastEffect = workInProgress.lastEffect = renderState.lastEffect; // Remove any effects that were appended after this point.
+
+                    if (lastEffect !== null) {
+                      lastEffect.nextEffect = null;
+                    } // We're done.
+
+
+                    return null;
+                  }
+              } else if ( // The time it took to render last row is greater than the remaining
+              // time we have to render. So rendering one more row would likely
+              // exceed it.
+              now() * 2 - renderState.renderingStartTime > getRenderTargetTime() && renderLanes !== OffscreenLane) {
+                // We have now passed our CPU deadline and we'll just give up further
+                // attempts to render the main content and only render fallbacks.
+                // The assumption is that this is usually faster.
+                workInProgress.flags |= DidCapture;
+                didSuspendAlready = true;
+                cutOffTailIfNeeded(renderState, false); // Since nothing actually suspended, there will nothing to ping this
+                // to get it started back up to attempt the next item. While in terms
+                // of priority this work has the same priority as this current render,
+                // it's not part of the same transition once the transition has
+                // committed. If it's sync, we still want to yield so that it can be
+                // painted. Conceptually, this is really the same as pinging.
+                // We can use any RetryLane even if it's the one currently rendering
+                // since we're leaving it behind on this node.
+
+                workInProgress.lanes = SomeRetryLane;
+
+                {
+                  markSpawnedWork(SomeRetryLane);
+                }
+              }
+            }
+
+            if (renderState.isBackwards) {
+              // The effect list of the backwards tail will have been added
+              // to the end. This breaks the guarantee that life-cycles fire in
+              // sibling order but that isn't a strong guarantee promised by React.
+              // Especially since these might also just pop in during future commits.
+              // Append to the beginning of the list.
+              renderedTail.sibling = workInProgress.child;
+              workInProgress.child = renderedTail;
+            } else {
+              var previousSibling = renderState.last;
+
+              if (previousSibling !== null) {
+                previousSibling.sibling = renderedTail;
+              } else {
+                workInProgress.child = renderedTail;
+              }
+
+              renderState.last = renderedTail;
+            }
+          }
+
+          if (renderState.tail !== null) {
+            // We still have tail rows to render.
+            // Pop a row.
+            var next = renderState.tail;
+            renderState.rendering = next;
+            renderState.tail = next.sibling;
+            renderState.lastEffect = workInProgress.lastEffect;
+            renderState.renderingStartTime = now();
+            next.sibling = null; // Restore the context.
+            // TODO: We can probably just avoid popping it instead and only
+            // setting it the first time we go from not suspended to suspended.
+
+            var suspenseContext = suspenseStackCursor.current;
+
+            if (didSuspendAlready) {
+              suspenseContext = setShallowSuspenseContext(suspenseContext, ForceSuspenseFallback);
+            } else {
+              suspenseContext = setDefaultShallowSuspenseContext(suspenseContext);
+            }
+
+            pushSuspenseContext(workInProgress, suspenseContext); // Do a pass over the next row.
+
+            return next;
+          }
+
+          return null;
+        }
+
+      case FundamentalComponent:
+        {
+
+          break;
+        }
+
+      case ScopeComponent:
+        {
+
+          break;
+        }
+
+      case Block:
+
+        break;
+
+      case OffscreenComponent:
+      case LegacyHiddenComponent:
+        {
+          popRenderLanes(workInProgress);
+
+          if (current !== null) {
+            var _nextState = workInProgress.memoizedState;
+            var _prevState = current.memoizedState;
+            var prevIsHidden = _prevState !== null;
+            var nextIsHidden = _nextState !== null;
+
+            if (prevIsHidden !== nextIsHidden && newProps.mode !== 'unstable-defer-without-hiding') {
+              workInProgress.flags |= Update;
+            }
+          }
+
+          return null;
+        }
+    }
+
+    {
+      {
+        throw Error( "Unknown unit of work tag (" + workInProgress.tag + "). This error is likely caused by a bug in React. Please file an issue." );
+      }
+    }
+  }
+
+  function unwindWork(workInProgress, renderLanes) {
+    switch (workInProgress.tag) {
+      case ClassComponent:
+        {
+          var Component = workInProgress.type;
+
+          if (isContextProvider(Component)) {
+            popContext(workInProgress);
+          }
+
+          var flags = workInProgress.flags;
+
+          if (flags & ShouldCapture) {
+            workInProgress.flags = flags & ~ShouldCapture | DidCapture;
+
+            if ( (workInProgress.mode & ProfileMode) !== NoMode) {
+              transferActualDuration(workInProgress);
+            }
+
+            return workInProgress;
+          }
+
+          return null;
+        }
+
+      case HostRoot:
+        {
+          popHostContainer(workInProgress);
+          popTopLevelContextObject(workInProgress);
+          resetWorkInProgressVersions();
+          var _flags = workInProgress.flags;
+
+          if (!((_flags & DidCapture) === NoFlags)) {
+            {
+              throw Error( "The root failed to unmount after an error. This is likely a bug in React. Please file an issue." );
+            }
+          }
+
+          workInProgress.flags = _flags & ~ShouldCapture | DidCapture;
+          return workInProgress;
+        }
+
+      case HostComponent:
+        {
+          // TODO: popHydrationState
+          popHostContext(workInProgress);
+          return null;
+        }
+
+      case SuspenseComponent:
+        {
+          popSuspenseContext(workInProgress);
+
+          var _flags2 = workInProgress.flags;
+
+          if (_flags2 & ShouldCapture) {
+            workInProgress.flags = _flags2 & ~ShouldCapture | DidCapture; // Captured a suspense effect. Re-render the boundary.
+
+            if ( (workInProgress.mode & ProfileMode) !== NoMode) {
+              transferActualDuration(workInProgress);
+            }
+
+            return workInProgress;
+          }
+
+          return null;
+        }
+
+      case SuspenseListComponent:
+        {
+          popSuspenseContext(workInProgress); // SuspenseList doesn't actually catch anything. It should've been
+          // caught by a nested boundary. If not, it should bubble through.
+
+          return null;
+        }
+
+      case HostPortal:
+        popHostContainer(workInProgress);
+        return null;
+
+      case ContextProvider:
+        popProvider(workInProgress);
+        return null;
+
+      case OffscreenComponent:
+      case LegacyHiddenComponent:
+        popRenderLanes(workInProgress);
+        return null;
+
+      default:
+        return null;
+    }
+  }
+
+  function unwindInterruptedWork(interruptedWork) {
+    switch (interruptedWork.tag) {
+      case ClassComponent:
+        {
+          var childContextTypes = interruptedWork.type.childContextTypes;
+
+          if (childContextTypes !== null && childContextTypes !== undefined) {
+            popContext(interruptedWork);
+          }
+
+          break;
+        }
+
+      case HostRoot:
+        {
+          popHostContainer(interruptedWork);
+          popTopLevelContextObject(interruptedWork);
+          resetWorkInProgressVersions();
+          break;
+        }
+
+      case HostComponent:
+        {
+          popHostContext(interruptedWork);
+          break;
+        }
+
+      case HostPortal:
+        popHostContainer(interruptedWork);
+        break;
+
+      case SuspenseComponent:
+        popSuspenseContext(interruptedWork);
+        break;
+
+      case SuspenseListComponent:
+        popSuspenseContext(interruptedWork);
+        break;
+
+      case ContextProvider:
+        popProvider(interruptedWork);
+        break;
+
+      case OffscreenComponent:
+      case LegacyHiddenComponent:
+        popRenderLanes(interruptedWork);
+        break;
+    }
+  }
+
+  function createCapturedValue(value, source) {
+    // If the value is an error, call this function immediately after it is thrown
+    // so the stack is accurate.
+    return {
+      value: value,
+      source: source,
+      stack: getStackByFiberInDevAndProd(source)
+    };
+  }
+
+  // This module is forked in different environments.
+  // By default, return `true` to log errors to the console.
+  // Forks can return `false` if this isn't desirable.
+  function showErrorDialog(boundary, errorInfo) {
+    return true;
+  }
+
+  function logCapturedError(boundary, errorInfo) {
+    try {
+      var logError = showErrorDialog(boundary, errorInfo); // Allow injected showErrorDialog() to prevent default console.error logging.
+      // This enables renderers like ReactNative to better manage redbox behavior.
+
+      if (logError === false) {
+        return;
+      }
+
+      var error = errorInfo.value;
+
+      if (true) {
+        var source = errorInfo.source;
+        var stack = errorInfo.stack;
+        var componentStack = stack !== null ? stack : ''; // Browsers support silencing uncaught errors by calling
+        // `preventDefault()` in window `error` handler.
+        // We record this information as an expando on the error.
+
+        if (error != null && error._suppressLogging) {
+          if (boundary.tag === ClassComponent) {
+            // The error is recoverable and was silenced.
+            // Ignore it and don't print the stack addendum.
+            // This is handy for testing error boundaries without noise.
+            return;
+          } // The error is fatal. Since the silencing might have
+          // been accidental, we'll surface it anyway.
+          // However, the browser would have silenced the original error
+          // so we'll print it first, and then print the stack addendum.
+
+
+          console['error'](error); // Don't transform to our wrapper
+          // For a more detailed description of this block, see:
+          // https://github.com/facebook/react/pull/13384
+        }
+
+        var componentName = source ? getComponentName(source.type) : null;
+        var componentNameMessage = componentName ? "The above error occurred in the <" + componentName + "> component:" : 'The above error occurred in one of your React components:';
+        var errorBoundaryMessage;
+        var errorBoundaryName = getComponentName(boundary.type);
+
+        if (errorBoundaryName) {
+          errorBoundaryMessage = "React will try to recreate this component tree from scratch " + ("using the error boundary you provided, " + errorBoundaryName + ".");
+        } else {
+          errorBoundaryMessage = 'Consider adding an error boundary to your tree to customize error handling behavior.\n' + 'Visit https://reactjs.org/link/error-boundaries to learn more about error boundaries.';
+        }
+
+        var combinedMessage = componentNameMessage + "\n" + componentStack + "\n\n" + ("" + errorBoundaryMessage); // In development, we provide our own message with just the component stack.
+        // We don't include the original error message and JS stack because the browser
+        // has already printed it. Even if the application swallows the error, it is still
+        // displayed by the browser thanks to the DEV-only fake event trick in ReactErrorUtils.
+
+        console['error'](combinedMessage); // Don't transform to our wrapper
+      } else {
+        // In production, we print the error directly.
+        // This will include the message, the JS stack, and anything the browser wants to show.
+        // We pass the error object instead of custom message so that the browser displays the error natively.
+        console['error'](error); // Don't transform to our wrapper
+      }
+    } catch (e) {
+      // This method must not throw, or React internal state will get messed up.
+      // If console.error is overridden, or logCapturedError() shows a dialog that throws,
+      // we want to report this error outside of the normal stack as a last resort.
+      // https://github.com/facebook/react/issues/13188
+      setTimeout(function () {
+        throw e;
+      });
+    }
+  }
+
+  var PossiblyWeakMap$1 = typeof WeakMap === 'function' ? WeakMap : Map;
+
+  function createRootErrorUpdate(fiber, errorInfo, lane) {
+    var update = createUpdate(NoTimestamp, lane); // Unmount the root by rendering null.
+
+    update.tag = CaptureUpdate; // Caution: React DevTools currently depends on this property
+    // being called "element".
+
+    update.payload = {
+      element: null
+    };
+    var error = errorInfo.value;
+
+    update.callback = function () {
+      onUncaughtError(error);
+      logCapturedError(fiber, errorInfo);
+    };
+
+    return update;
+  }
+
+  function createClassErrorUpdate(fiber, errorInfo, lane) {
+    var update = createUpdate(NoTimestamp, lane);
+    update.tag = CaptureUpdate;
+    var getDerivedStateFromError = fiber.type.getDerivedStateFromError;
+
+    if (typeof getDerivedStateFromError === 'function') {
+      var error$1 = errorInfo.value;
+
+      update.payload = function () {
+        logCapturedError(fiber, errorInfo);
+        return getDerivedStateFromError(error$1);
+      };
+    }
+
+    var inst = fiber.stateNode;
+
+    if (inst !== null && typeof inst.componentDidCatch === 'function') {
+      update.callback = function callback() {
+        {
+          markFailedErrorBoundaryForHotReloading(fiber);
+        }
+
+        if (typeof getDerivedStateFromError !== 'function') {
+          // To preserve the preexisting retry behavior of error boundaries,
+          // we keep track of which ones already failed during this batch.
+          // This gets reset before we yield back to the browser.
+          // TODO: Warn in strict mode if getDerivedStateFromError is
+          // not defined.
+          markLegacyErrorBoundaryAsFailed(this); // Only log here if componentDidCatch is the only error boundary method defined
+
+          logCapturedError(fiber, errorInfo);
+        }
+
+        var error$1 = errorInfo.value;
+        var stack = errorInfo.stack;
+        this.componentDidCatch(error$1, {
+          componentStack: stack !== null ? stack : ''
+        });
+
+        {
+          if (typeof getDerivedStateFromError !== 'function') {
+            // If componentDidCatch is the only error boundary method defined,
+            // then it needs to call setState to recover from errors.
+            // If no state update is scheduled then the boundary will swallow the error.
+            if (!includesSomeLane(fiber.lanes, SyncLane)) {
+              error('%s: Error boundaries should implement getDerivedStateFromError(). ' + 'In that method, return a state update to display an error message or fallback UI.', getComponentName(fiber.type) || 'Unknown');
+            }
+          }
+        }
+      };
+    } else {
+      update.callback = function () {
+        markFailedErrorBoundaryForHotReloading(fiber);
+      };
+    }
+
+    return update;
+  }
+
+  function attachPingListener(root, wakeable, lanes) {
+    // Attach a listener to the promise to "ping" the root and retry. But only if
+    // one does not already exist for the lanes we're currently rendering (which
+    // acts like a "thread ID" here).
+    var pingCache = root.pingCache;
+    var threadIDs;
+
+    if (pingCache === null) {
+      pingCache = root.pingCache = new PossiblyWeakMap$1();
+      threadIDs = new Set();
+      pingCache.set(wakeable, threadIDs);
+    } else {
+      threadIDs = pingCache.get(wakeable);
+
+      if (threadIDs === undefined) {
+        threadIDs = new Set();
+        pingCache.set(wakeable, threadIDs);
+      }
+    }
+
+    if (!threadIDs.has(lanes)) {
+      // Memoize using the thread ID to prevent redundant listeners.
+      threadIDs.add(lanes);
+      var ping = pingSuspendedRoot.bind(null, root, wakeable, lanes);
+      wakeable.then(ping, ping);
+    }
+  }
+
+  function throwException(root, returnFiber, sourceFiber, value, rootRenderLanes) {
+    // The source fiber did not complete.
+    sourceFiber.flags |= Incomplete; // Its effect list is no longer valid.
+
+    sourceFiber.firstEffect = sourceFiber.lastEffect = null;
+
+    if (value !== null && typeof value === 'object' && typeof value.then === 'function') {
+      // This is a wakeable.
+      var wakeable = value;
+
+      if ((sourceFiber.mode & BlockingMode) === NoMode) {
+        // Reset the memoizedState to what it was before we attempted
+        // to render it.
+        var currentSource = sourceFiber.alternate;
+
+        if (currentSource) {
+          sourceFiber.updateQueue = currentSource.updateQueue;
+          sourceFiber.memoizedState = currentSource.memoizedState;
+          sourceFiber.lanes = currentSource.lanes;
+        } else {
+          sourceFiber.updateQueue = null;
+          sourceFiber.memoizedState = null;
+        }
+      }
+
+      var hasInvisibleParentBoundary = hasSuspenseContext(suspenseStackCursor.current, InvisibleParentSuspenseContext); // Schedule the nearest Suspense to re-render the timed out view.
+
+      var _workInProgress = returnFiber;
+
+      do {
+        if (_workInProgress.tag === SuspenseComponent && shouldCaptureSuspense(_workInProgress, hasInvisibleParentBoundary)) {
+          // Found the nearest boundary.
+          // Stash the promise on the boundary fiber. If the boundary times out, we'll
+          // attach another listener to flip the boundary back to its normal state.
+          var wakeables = _workInProgress.updateQueue;
+
+          if (wakeables === null) {
+            var updateQueue = new Set();
+            updateQueue.add(wakeable);
+            _workInProgress.updateQueue = updateQueue;
+          } else {
+            wakeables.add(wakeable);
+          } // If the boundary is outside of blocking mode, we should *not*
+          // suspend the commit. Pretend as if the suspended component rendered
+          // null and keep rendering. In the commit phase, we'll schedule a
+          // subsequent synchronous update to re-render the Suspense.
+          //
+          // Note: It doesn't matter whether the component that suspended was
+          // inside a blocking mode tree. If the Suspense is outside of it, we
+          // should *not* suspend the commit.
+
+
+          if ((_workInProgress.mode & BlockingMode) === NoMode) {
+            _workInProgress.flags |= DidCapture;
+            sourceFiber.flags |= ForceUpdateForLegacySuspense; // We're going to commit this fiber even though it didn't complete.
+            // But we shouldn't call any lifecycle methods or callbacks. Remove
+            // all lifecycle effect tags.
+
+            sourceFiber.flags &= ~(LifecycleEffectMask | Incomplete);
+
+            if (sourceFiber.tag === ClassComponent) {
+              var currentSourceFiber = sourceFiber.alternate;
+
+              if (currentSourceFiber === null) {
+                // This is a new mount. Change the tag so it's not mistaken for a
+                // completed class component. For example, we should not call
+                // componentWillUnmount if it is deleted.
+                sourceFiber.tag = IncompleteClassComponent;
+              } else {
+                // When we try rendering again, we should not reuse the current fiber,
+                // since it's known to be in an inconsistent state. Use a force update to
+                // prevent a bail out.
+                var update = createUpdate(NoTimestamp, SyncLane);
+                update.tag = ForceUpdate;
+                enqueueUpdate(sourceFiber, update);
+              }
+            } // The source fiber did not complete. Mark it with Sync priority to
+            // indicate that it still has pending work.
+
+
+            sourceFiber.lanes = mergeLanes(sourceFiber.lanes, SyncLane); // Exit without suspending.
+
+            return;
+          } // Confirmed that the boundary is in a concurrent mode tree. Continue
+          // with the normal suspend path.
+          //
+          // After this we'll use a set of heuristics to determine whether this
+          // render pass will run to completion or restart or "suspend" the commit.
+          // The actual logic for this is spread out in different places.
+          //
+          // This first principle is that if we're going to suspend when we complete
+          // a root, then we should also restart if we get an update or ping that
+          // might unsuspend it, and vice versa. The only reason to suspend is
+          // because you think you might want to restart before committing. However,
+          // it doesn't make sense to restart only while in the period we're suspended.
+          //
+          // Restarting too aggressively is also not good because it starves out any
+          // intermediate loading state. So we use heuristics to determine when.
+          // Suspense Heuristics
+          //
+          // If nothing threw a Promise or all the same fallbacks are already showing,
+          // then don't suspend/restart.
+          //
+          // If this is an initial render of a new tree of Suspense boundaries and
+          // those trigger a fallback, then don't suspend/restart. We want to ensure
+          // that we can show the initial loading state as quickly as possible.
+          //
+          // If we hit a "Delayed" case, such as when we'd switch from content back into
+          // a fallback, then we should always suspend/restart. Transitions apply
+          // to this case. If none is defined, JND is used instead.
+          //
+          // If we're already showing a fallback and it gets "retried", allowing us to show
+          // another level, but there's still an inner boundary that would show a fallback,
+          // then we suspend/restart for 500ms since the last time we showed a fallback
+          // anywhere in the tree. This effectively throttles progressive loading into a
+          // consistent train of commits. This also gives us an opportunity to restart to
+          // get to the completed state slightly earlier.
+          //
+          // If there's ambiguity due to batching it's resolved in preference of:
+          // 1) "delayed", 2) "initial render", 3) "retry".
+          //
+          // We want to ensure that a "busy" state doesn't get force committed. We want to
+          // ensure that new initial loading states can commit as soon as possible.
+
+
+          attachPingListener(root, wakeable, rootRenderLanes);
+          _workInProgress.flags |= ShouldCapture;
+          _workInProgress.lanes = rootRenderLanes;
+          return;
+        } // This boundary already captured during this render. Continue to the next
+        // boundary.
+
+
+        _workInProgress = _workInProgress.return;
+      } while (_workInProgress !== null); // No boundary was found. Fallthrough to error mode.
+      // TODO: Use invariant so the message is stripped in prod?
+
+
+      value = new Error((getComponentName(sourceFiber.type) || 'A React component') + ' suspended while rendering, but no fallback UI was specified.\n' + '\n' + 'Add a <Suspense fallback=...> component higher in the tree to ' + 'provide a loading indicator or placeholder to display.');
+    } // We didn't find a boundary that could handle this type of exception. Start
+    // over and traverse parent path again, this time treating the exception
+    // as an error.
+
+
+    renderDidError();
+    value = createCapturedValue(value, sourceFiber);
+    var workInProgress = returnFiber;
+
+    do {
+      switch (workInProgress.tag) {
+        case HostRoot:
+          {
+            var _errorInfo = value;
+            workInProgress.flags |= ShouldCapture;
+            var lane = pickArbitraryLane(rootRenderLanes);
+            workInProgress.lanes = mergeLanes(workInProgress.lanes, lane);
+
+            var _update = createRootErrorUpdate(workInProgress, _errorInfo, lane);
+
+            enqueueCapturedUpdate(workInProgress, _update);
+            return;
+          }
+
+        case ClassComponent:
+          // Capture and retry
+          var errorInfo = value;
+          var ctor = workInProgress.type;
+          var instance = workInProgress.stateNode;
+
+          if ((workInProgress.flags & DidCapture) === NoFlags && (typeof ctor.getDerivedStateFromError === 'function' || instance !== null && typeof instance.componentDidCatch === 'function' && !isAlreadyFailedLegacyErrorBoundary(instance))) {
+            workInProgress.flags |= ShouldCapture;
+
+            var _lane = pickArbitraryLane(rootRenderLanes);
+
+            workInProgress.lanes = mergeLanes(workInProgress.lanes, _lane); // Schedule the error boundary to re-render using updated state
+
+            var _update2 = createClassErrorUpdate(workInProgress, errorInfo, _lane);
+
+            enqueueCapturedUpdate(workInProgress, _update2);
+            return;
+          }
+
+          break;
+      }
+
+      workInProgress = workInProgress.return;
+    } while (workInProgress !== null);
+  }
+
+  var didWarnAboutUndefinedSnapshotBeforeUpdate = null;
+
+  {
+    didWarnAboutUndefinedSnapshotBeforeUpdate = new Set();
+  }
+
+  var PossiblyWeakSet = typeof WeakSet === 'function' ? WeakSet : Set;
+
+  var callComponentWillUnmountWithTimer = function (current, instance) {
+    instance.props = current.memoizedProps;
+    instance.state = current.memoizedState;
+
+    {
+      instance.componentWillUnmount();
+    }
+  }; // Capture errors so they don't interrupt unmounting.
+
+
+  function safelyCallComponentWillUnmount(current, instance) {
+    {
+      invokeGuardedCallback(null, callComponentWillUnmountWithTimer, null, current, instance);
+
+      if (hasCaughtError()) {
+        var unmountError = clearCaughtError();
+        captureCommitPhaseError(current, unmountError);
+      }
+    }
+  }
+
+  function safelyDetachRef(current) {
+    var ref = current.ref;
+
+    if (ref !== null) {
+      if (typeof ref === 'function') {
+        {
+          invokeGuardedCallback(null, ref, null, null);
+
+          if (hasCaughtError()) {
+            var refError = clearCaughtError();
+            captureCommitPhaseError(current, refError);
+          }
+        }
+      } else {
+        ref.current = null;
+      }
+    }
+  }
+
+  function safelyCallDestroy(current, destroy) {
+    {
+      invokeGuardedCallback(null, destroy, null);
+
+      if (hasCaughtError()) {
+        var error = clearCaughtError();
+        captureCommitPhaseError(current, error);
+      }
+    }
+  }
+
+  function commitBeforeMutationLifeCycles(current, finishedWork) {
+    switch (finishedWork.tag) {
+      case FunctionComponent:
+      case ForwardRef:
+      case SimpleMemoComponent:
+      case Block:
+        {
+          return;
+        }
+
+      case ClassComponent:
+        {
+          if (finishedWork.flags & Snapshot) {
+            if (current !== null) {
+              var prevProps = current.memoizedProps;
+              var prevState = current.memoizedState;
+              var instance = finishedWork.stateNode; // We could update instance props and state here,
+              // but instead we rely on them being set during last render.
+              // TODO: revisit this when we implement resuming.
+
+              {
+                if (finishedWork.type === finishedWork.elementType && !didWarnAboutReassigningProps) {
+                  if (instance.props !== finishedWork.memoizedProps) {
+                    error('Expected %s props to match memoized props before ' + 'getSnapshotBeforeUpdate. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance');
+                  }
+
+                  if (instance.state !== finishedWork.memoizedState) {
+                    error('Expected %s state to match memoized state before ' + 'getSnapshotBeforeUpdate. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.state`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance');
+                  }
+                }
+              }
+
+              var snapshot = instance.getSnapshotBeforeUpdate(finishedWork.elementType === finishedWork.type ? prevProps : resolveDefaultProps(finishedWork.type, prevProps), prevState);
+
+              {
+                var didWarnSet = didWarnAboutUndefinedSnapshotBeforeUpdate;
+
+                if (snapshot === undefined && !didWarnSet.has(finishedWork.type)) {
+                  didWarnSet.add(finishedWork.type);
+
+                  error('%s.getSnapshotBeforeUpdate(): A snapshot value (or null) ' + 'must be returned. You have returned undefined.', getComponentName(finishedWork.type));
+                }
+              }
+
+              instance.__reactInternalSnapshotBeforeUpdate = snapshot;
+            }
+          }
+
+          return;
+        }
+
+      case HostRoot:
+        {
+          {
+            if (finishedWork.flags & Snapshot) {
+              var root = finishedWork.stateNode;
+              clearContainer(root.containerInfo);
+            }
+          }
+
+          return;
+        }
+
+      case HostComponent:
+      case HostText:
+      case HostPortal:
+      case IncompleteClassComponent:
+        // Nothing to do for these component types
+        return;
+    }
+
+    {
+      {
+        throw Error( "This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue." );
+      }
+    }
+  }
+
+  function commitHookEffectListUnmount(tag, finishedWork) {
+    var updateQueue = finishedWork.updateQueue;
+    var lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;
+
+    if (lastEffect !== null) {
+      var firstEffect = lastEffect.next;
+      var effect = firstEffect;
+
+      do {
+        if ((effect.tag & tag) === tag) {
+          // Unmount
+          var destroy = effect.destroy;
+          effect.destroy = undefined;
+
+          if (destroy !== undefined) {
+            destroy();
+          }
+        }
+
+        effect = effect.next;
+      } while (effect !== firstEffect);
+    }
+  }
+
+  function commitHookEffectListMount(tag, finishedWork) {
+    var updateQueue = finishedWork.updateQueue;
+    var lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;
+
+    if (lastEffect !== null) {
+      var firstEffect = lastEffect.next;
+      var effect = firstEffect;
+
+      do {
+        if ((effect.tag & tag) === tag) {
+          // Mount
+          var create = effect.create;
+          effect.destroy = create();
+
+          {
+            var destroy = effect.destroy;
+
+            if (destroy !== undefined && typeof destroy !== 'function') {
+              var addendum = void 0;
+
+              if (destroy === null) {
+                addendum = ' You returned null. If your effect does not require clean ' + 'up, return undefined (or nothing).';
+              } else if (typeof destroy.then === 'function') {
+                addendum = '\n\nIt looks like you wrote useEffect(async () => ...) or returned a Promise. ' + 'Instead, write the async function inside your effect ' + 'and call it immediately:\n\n' + 'useEffect(() => {\n' + '  async function fetchData() {\n' + '    // You can await here\n' + '    const response = await MyAPI.getData(someId);\n' + '    // ...\n' + '  }\n' + '  fetchData();\n' + "}, [someId]); // Or [] if effect doesn't need props or state\n\n" + 'Learn more about data fetching with Hooks: https://reactjs.org/link/hooks-data-fetching';
+              } else {
+                addendum = ' You returned: ' + destroy;
+              }
+
+              error('An effect function must not return anything besides a function, ' + 'which is used for clean-up.%s', addendum);
+            }
+          }
+        }
+
+        effect = effect.next;
+      } while (effect !== firstEffect);
+    }
+  }
+
+  function schedulePassiveEffects(finishedWork) {
+    var updateQueue = finishedWork.updateQueue;
+    var lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;
+
+    if (lastEffect !== null) {
+      var firstEffect = lastEffect.next;
+      var effect = firstEffect;
+
+      do {
+        var _effect = effect,
+            next = _effect.next,
+            tag = _effect.tag;
+
+        if ((tag & Passive$1) !== NoFlags$1 && (tag & HasEffect) !== NoFlags$1) {
+          enqueuePendingPassiveHookEffectUnmount(finishedWork, effect);
+          enqueuePendingPassiveHookEffectMount(finishedWork, effect);
+        }
+
+        effect = next;
+      } while (effect !== firstEffect);
+    }
+  }
+
+  function commitLifeCycles(finishedRoot, current, finishedWork, committedLanes) {
+    switch (finishedWork.tag) {
+      case FunctionComponent:
+      case ForwardRef:
+      case SimpleMemoComponent:
+      case Block:
+        {
+          // At this point layout effects have already been destroyed (during mutation phase).
+          // This is done to prevent sibling component effects from interfering with each other,
+          // e.g. a destroy function in one component should never override a ref set
+          // by a create function in another component during the same commit.
+          {
+            commitHookEffectListMount(Layout | HasEffect, finishedWork);
+          }
+
+          schedulePassiveEffects(finishedWork);
+          return;
+        }
+
+      case ClassComponent:
+        {
+          var instance = finishedWork.stateNode;
+
+          if (finishedWork.flags & Update) {
+            if (current === null) {
+              // We could update instance props and state here,
+              // but instead we rely on them being set during last render.
+              // TODO: revisit this when we implement resuming.
+              {
+                if (finishedWork.type === finishedWork.elementType && !didWarnAboutReassigningProps) {
+                  if (instance.props !== finishedWork.memoizedProps) {
+                    error('Expected %s props to match memoized props before ' + 'componentDidMount. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance');
+                  }
+
+                  if (instance.state !== finishedWork.memoizedState) {
+                    error('Expected %s state to match memoized state before ' + 'componentDidMount. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.state`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance');
+                  }
+                }
+              }
+
+              {
+                instance.componentDidMount();
+              }
+            } else {
+              var prevProps = finishedWork.elementType === finishedWork.type ? current.memoizedProps : resolveDefaultProps(finishedWork.type, current.memoizedProps);
+              var prevState = current.memoizedState; // We could update instance props and state here,
+              // but instead we rely on them being set during last render.
+              // TODO: revisit this when we implement resuming.
+
+              {
+                if (finishedWork.type === finishedWork.elementType && !didWarnAboutReassigningProps) {
+                  if (instance.props !== finishedWork.memoizedProps) {
+                    error('Expected %s props to match memoized props before ' + 'componentDidUpdate. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance');
+                  }
+
+                  if (instance.state !== finishedWork.memoizedState) {
+                    error('Expected %s state to match memoized state before ' + 'componentDidUpdate. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.state`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance');
+                  }
+                }
+              }
+
+              {
+                instance.componentDidUpdate(prevProps, prevState, instance.__reactInternalSnapshotBeforeUpdate);
+              }
+            }
+          } // TODO: I think this is now always non-null by the time it reaches the
+          // commit phase. Consider removing the type check.
+
+
+          var updateQueue = finishedWork.updateQueue;
+
+          if (updateQueue !== null) {
+            {
+              if (finishedWork.type === finishedWork.elementType && !didWarnAboutReassigningProps) {
+                if (instance.props !== finishedWork.memoizedProps) {
+                  error('Expected %s props to match memoized props before ' + 'processing the update queue. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance');
+                }
+
+                if (instance.state !== finishedWork.memoizedState) {
+                  error('Expected %s state to match memoized state before ' + 'processing the update queue. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.state`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance');
+                }
+              }
+            } // We could update instance props and state here,
+            // but instead we rely on them being set during last render.
+            // TODO: revisit this when we implement resuming.
+
+
+            commitUpdateQueue(finishedWork, updateQueue, instance);
+          }
+
+          return;
+        }
+
+      case HostRoot:
+        {
+          // TODO: I think this is now always non-null by the time it reaches the
+          // commit phase. Consider removing the type check.
+          var _updateQueue = finishedWork.updateQueue;
+
+          if (_updateQueue !== null) {
+            var _instance = null;
+
+            if (finishedWork.child !== null) {
+              switch (finishedWork.child.tag) {
+                case HostComponent:
+                  _instance = getPublicInstance(finishedWork.child.stateNode);
+                  break;
+
+                case ClassComponent:
+                  _instance = finishedWork.child.stateNode;
+                  break;
+              }
+            }
+
+            commitUpdateQueue(finishedWork, _updateQueue, _instance);
+          }
+
+          return;
+        }
+
+      case HostComponent:
+        {
+          var _instance2 = finishedWork.stateNode; // Renderers may schedule work to be done after host components are mounted
+          // (eg DOM renderer may schedule auto-focus for inputs and form controls).
+          // These effects should only be committed when components are first mounted,
+          // aka when there is no current/alternate.
+
+          if (current === null && finishedWork.flags & Update) {
+            var type = finishedWork.type;
+            var props = finishedWork.memoizedProps;
+            commitMount(_instance2, type, props);
+          }
+
+          return;
+        }
+
+      case HostText:
+        {
+          // We have no life-cycles associated with text.
+          return;
+        }
+
+      case HostPortal:
+        {
+          // We have no life-cycles associated with portals.
+          return;
+        }
+
+      case Profiler:
+        {
+          {
+            var _finishedWork$memoize2 = finishedWork.memoizedProps,
+                onCommit = _finishedWork$memoize2.onCommit,
+                onRender = _finishedWork$memoize2.onRender;
+            var effectDuration = finishedWork.stateNode.effectDuration;
+            var commitTime = getCommitTime();
+
+            if (typeof onRender === 'function') {
+              {
+                onRender(finishedWork.memoizedProps.id, current === null ? 'mount' : 'update', finishedWork.actualDuration, finishedWork.treeBaseDuration, finishedWork.actualStartTime, commitTime, finishedRoot.memoizedInteractions);
+              }
+            }
+          }
+
+          return;
+        }
+
+      case SuspenseComponent:
+        {
+          commitSuspenseHydrationCallbacks(finishedRoot, finishedWork);
+          return;
+        }
+
+      case SuspenseListComponent:
+      case IncompleteClassComponent:
+      case FundamentalComponent:
+      case ScopeComponent:
+      case OffscreenComponent:
+      case LegacyHiddenComponent:
+        return;
+    }
+
+    {
+      {
+        throw Error( "This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue." );
+      }
+    }
+  }
+
+  function hideOrUnhideAllChildren(finishedWork, isHidden) {
+    {
+      // We only have the top Fiber that was inserted but we need to recurse down its
+      // children to find all the terminal nodes.
+      var node = finishedWork;
+
+      while (true) {
+        if (node.tag === HostComponent) {
+          var instance = node.stateNode;
+
+          if (isHidden) {
+            hideInstance(instance);
+          } else {
+            unhideInstance(node.stateNode, node.memoizedProps);
+          }
+        } else if (node.tag === HostText) {
+          var _instance3 = node.stateNode;
+
+          if (isHidden) {
+            hideTextInstance(_instance3);
+          } else {
+            unhideTextInstance(_instance3, node.memoizedProps);
+          }
+        } else if ((node.tag === OffscreenComponent || node.tag === LegacyHiddenComponent) && node.memoizedState !== null && node !== finishedWork) ; else if (node.child !== null) {
+          node.child.return = node;
+          node = node.child;
+          continue;
+        }
+
+        if (node === finishedWork) {
+          return;
+        }
+
+        while (node.sibling === null) {
+          if (node.return === null || node.return === finishedWork) {
+            return;
+          }
+
+          node = node.return;
+        }
+
+        node.sibling.return = node.return;
+        node = node.sibling;
+      }
+    }
+  }
+
+  function commitAttachRef(finishedWork) {
+    var ref = finishedWork.ref;
+
+    if (ref !== null) {
+      var instance = finishedWork.stateNode;
+      var instanceToUse;
+
+      switch (finishedWork.tag) {
+        case HostComponent:
+          instanceToUse = getPublicInstance(instance);
+          break;
+
+        default:
+          instanceToUse = instance;
+      } // Moved outside to ensure DCE works with this flag
+
+      if (typeof ref === 'function') {
+        ref(instanceToUse);
+      } else {
+        {
+          if (!ref.hasOwnProperty('current')) {
+            error('Unexpected ref object provided for %s. ' + 'Use either a ref-setter function or React.createRef().', getComponentName(finishedWork.type));
+          }
+        }
+
+        ref.current = instanceToUse;
+      }
+    }
+  }
+
+  function commitDetachRef(current) {
+    var currentRef = current.ref;
+
+    if (currentRef !== null) {
+      if (typeof currentRef === 'function') {
+        currentRef(null);
+      } else {
+        currentRef.current = null;
+      }
+    }
+  } // User-originating errors (lifecycles and refs) should not interrupt
+  // deletion, so don't let them throw. Host-originating errors should
+  // interrupt deletion, so it's okay
+
+
+  function commitUnmount(finishedRoot, current, renderPriorityLevel) {
+    onCommitUnmount(current);
+
+    switch (current.tag) {
+      case FunctionComponent:
+      case ForwardRef:
+      case MemoComponent:
+      case SimpleMemoComponent:
+      case Block:
+        {
+          var updateQueue = current.updateQueue;
+
+          if (updateQueue !== null) {
+            var lastEffect = updateQueue.lastEffect;
+
+            if (lastEffect !== null) {
+              var firstEffect = lastEffect.next;
+              var effect = firstEffect;
+
+              do {
+                var _effect2 = effect,
+                    destroy = _effect2.destroy,
+                    tag = _effect2.tag;
+
+                if (destroy !== undefined) {
+                  if ((tag & Passive$1) !== NoFlags$1) {
+                    enqueuePendingPassiveHookEffectUnmount(current, effect);
+                  } else {
+                    {
+                      safelyCallDestroy(current, destroy);
+                    }
+                  }
+                }
+
+                effect = effect.next;
+              } while (effect !== firstEffect);
+            }
+          }
+
+          return;
+        }
+
+      case ClassComponent:
+        {
+          safelyDetachRef(current);
+          var instance = current.stateNode;
+
+          if (typeof instance.componentWillUnmount === 'function') {
+            safelyCallComponentWillUnmount(current, instance);
+          }
+
+          return;
+        }
+
+      case HostComponent:
+        {
+          safelyDetachRef(current);
+          return;
+        }
+
+      case HostPortal:
+        {
+          // TODO: this is recursive.
+          // We are also not using this parent because
+          // the portal will get pushed immediately.
+          {
+            unmountHostComponents(finishedRoot, current);
+          }
+
+          return;
+        }
+
+      case FundamentalComponent:
+        {
+
+          return;
+        }
+
+      case DehydratedFragment:
+        {
+
+          return;
+        }
+
+      case ScopeComponent:
+        {
+
+          return;
+        }
+    }
+  }
+
+  function commitNestedUnmounts(finishedRoot, root, renderPriorityLevel) {
+    // While we're inside a removed host node we don't want to call
+    // removeChild on the inner nodes because they're removed by the top
+    // call anyway. We also want to call componentWillUnmount on all
+    // composites before this host node is removed from the tree. Therefore
+    // we do an inner loop while we're still inside the host node.
+    var node = root;
+
+    while (true) {
+      commitUnmount(finishedRoot, node); // Visit children because they may contain more composite or host nodes.
+      // Skip portals because commitUnmount() currently visits them recursively.
+
+      if (node.child !== null && ( // If we use mutation we drill down into portals using commitUnmount above.
+      // If we don't use mutation we drill down into portals here instead.
+       node.tag !== HostPortal)) {
+        node.child.return = node;
+        node = node.child;
+        continue;
+      }
+
+      if (node === root) {
+        return;
+      }
+
+      while (node.sibling === null) {
+        if (node.return === null || node.return === root) {
+          return;
+        }
+
+        node = node.return;
+      }
+
+      node.sibling.return = node.return;
+      node = node.sibling;
+    }
+  }
+
+  function detachFiberMutation(fiber) {
+    // Cut off the return pointers to disconnect it from the tree. Ideally, we
+    // should clear the child pointer of the parent alternate to let this
+    // get GC:ed but we don't know which for sure which parent is the current
+    // one so we'll settle for GC:ing the subtree of this child. This child
+    // itself will be GC:ed when the parent updates the next time.
+    // Note: we cannot null out sibling here, otherwise it can cause issues
+    // with findDOMNode and how it requires the sibling field to carry out
+    // traversal in a later effect. See PR #16820. We now clear the sibling
+    // field after effects, see: detachFiberAfterEffects.
+    //
+    // Don't disconnect stateNode now; it will be detached in detachFiberAfterEffects.
+    // It may be required if the current component is an error boundary,
+    // and one of its descendants throws while unmounting a passive effect.
+    fiber.alternate = null;
+    fiber.child = null;
+    fiber.dependencies = null;
+    fiber.firstEffect = null;
+    fiber.lastEffect = null;
+    fiber.memoizedProps = null;
+    fiber.memoizedState = null;
+    fiber.pendingProps = null;
+    fiber.return = null;
+    fiber.updateQueue = null;
+
+    {
+      fiber._debugOwner = null;
+    }
+  }
+
+  function getHostParentFiber(fiber) {
+    var parent = fiber.return;
+
+    while (parent !== null) {
+      if (isHostParent(parent)) {
+        return parent;
+      }
+
+      parent = parent.return;
+    }
+
+    {
+      {
+        throw Error( "Expected to find a host parent. This error is likely caused by a bug in React. Please file an issue." );
+      }
+    }
+  }
+
+  function isHostParent(fiber) {
+    return fiber.tag === HostComponent || fiber.tag === HostRoot || fiber.tag === HostPortal;
+  }
+
+  function getHostSibling(fiber) {
+    // We're going to search forward into the tree until we find a sibling host
+    // node. Unfortunately, if multiple insertions are done in a row we have to
+    // search past them. This leads to exponential search for the next sibling.
+    // TODO: Find a more efficient way to do this.
+    var node = fiber;
+
+    siblings: while (true) {
+      // If we didn't find anything, let's try the next sibling.
+      while (node.sibling === null) {
+        if (node.return === null || isHostParent(node.return)) {
+          // If we pop out of the root or hit the parent the fiber we are the
+          // last sibling.
+          return null;
+        }
+
+        node = node.return;
+      }
+
+      node.sibling.return = node.return;
+      node = node.sibling;
+
+      while (node.tag !== HostComponent && node.tag !== HostText && node.tag !== DehydratedFragment) {
+        // If it is not host node and, we might have a host node inside it.
+        // Try to search down until we find one.
+        if (node.flags & Placement) {
+          // If we don't have a child, try the siblings instead.
+          continue siblings;
+        } // If we don't have a child, try the siblings instead.
+        // We also skip portals because they are not part of this host tree.
+
+
+        if (node.child === null || node.tag === HostPortal) {
+          continue siblings;
+        } else {
+          node.child.return = node;
+          node = node.child;
+        }
+      } // Check if this host node is stable or about to be placed.
+
+
+      if (!(node.flags & Placement)) {
+        // Found it!
+        return node.stateNode;
+      }
+    }
+  }
+
+  function commitPlacement(finishedWork) {
+
+
+    var parentFiber = getHostParentFiber(finishedWork); // Note: these two variables *must* always be updated together.
+
+    var parent;
+    var isContainer;
+    var parentStateNode = parentFiber.stateNode;
+
+    switch (parentFiber.tag) {
+      case HostComponent:
+        parent = parentStateNode;
+        isContainer = false;
+        break;
+
+      case HostRoot:
+        parent = parentStateNode.containerInfo;
+        isContainer = true;
+        break;
+
+      case HostPortal:
+        parent = parentStateNode.containerInfo;
+        isContainer = true;
+        break;
+
+      case FundamentalComponent:
+
+      // eslint-disable-next-line-no-fallthrough
+
+      default:
+        {
+          {
+            throw Error( "Invalid host parent fiber. This error is likely caused by a bug in React. Please file an issue." );
+          }
+        }
+
+    }
+
+    if (parentFiber.flags & ContentReset) {
+      // Reset the text content of the parent before doing any insertions
+      resetTextContent(parent); // Clear ContentReset from the effect tag
+
+      parentFiber.flags &= ~ContentReset;
+    }
+
+    var before = getHostSibling(finishedWork); // We only have the top Fiber that was inserted but we need to recurse down its
+    // children to find all the terminal nodes.
+
+    if (isContainer) {
+      insertOrAppendPlacementNodeIntoContainer(finishedWork, before, parent);
+    } else {
+      insertOrAppendPlacementNode(finishedWork, before, parent);
+    }
+  }
+
+  function insertOrAppendPlacementNodeIntoContainer(node, before, parent) {
+    var tag = node.tag;
+    var isHost = tag === HostComponent || tag === HostText;
+
+    if (isHost || enableFundamentalAPI ) {
+      var stateNode = isHost ? node.stateNode : node.stateNode.instance;
+
+      if (before) {
+        insertInContainerBefore(parent, stateNode, before);
+      } else {
+        appendChildToContainer(parent, stateNode);
+      }
+    } else if (tag === HostPortal) ; else {
+      var child = node.child;
+
+      if (child !== null) {
+        insertOrAppendPlacementNodeIntoContainer(child, before, parent);
+        var sibling = child.sibling;
+
+        while (sibling !== null) {
+          insertOrAppendPlacementNodeIntoContainer(sibling, before, parent);
+          sibling = sibling.sibling;
+        }
+      }
+    }
+  }
+
+  function insertOrAppendPlacementNode(node, before, parent) {
+    var tag = node.tag;
+    var isHost = tag === HostComponent || tag === HostText;
+
+    if (isHost || enableFundamentalAPI ) {
+      var stateNode = isHost ? node.stateNode : node.stateNode.instance;
+
+      if (before) {
+        insertBefore(parent, stateNode, before);
+      } else {
+        appendChild(parent, stateNode);
+      }
+    } else if (tag === HostPortal) ; else {
+      var child = node.child;
+
+      if (child !== null) {
+        insertOrAppendPlacementNode(child, before, parent);
+        var sibling = child.sibling;
+
+        while (sibling !== null) {
+          insertOrAppendPlacementNode(sibling, before, parent);
+          sibling = sibling.sibling;
+        }
+      }
+    }
+  }
+
+  function unmountHostComponents(finishedRoot, current, renderPriorityLevel) {
+    // We only have the top Fiber that was deleted but we need to recurse down its
+    // children to find all the terminal nodes.
+    var node = current; // Each iteration, currentParent is populated with node's host parent if not
+    // currentParentIsValid.
+
+    var currentParentIsValid = false; // Note: these two variables *must* always be updated together.
+
+    var currentParent;
+    var currentParentIsContainer;
+
+    while (true) {
+      if (!currentParentIsValid) {
+        var parent = node.return;
+
+        findParent: while (true) {
+          if (!(parent !== null)) {
+            {
+              throw Error( "Expected to find a host parent. This error is likely caused by a bug in React. Please file an issue." );
+            }
+          }
+
+          var parentStateNode = parent.stateNode;
+
+          switch (parent.tag) {
+            case HostComponent:
+              currentParent = parentStateNode;
+              currentParentIsContainer = false;
+              break findParent;
+
+            case HostRoot:
+              currentParent = parentStateNode.containerInfo;
+              currentParentIsContainer = true;
+              break findParent;
+
+            case HostPortal:
+              currentParent = parentStateNode.containerInfo;
+              currentParentIsContainer = true;
+              break findParent;
+
+          }
+
+          parent = parent.return;
+        }
+
+        currentParentIsValid = true;
+      }
+
+      if (node.tag === HostComponent || node.tag === HostText) {
+        commitNestedUnmounts(finishedRoot, node); // After all the children have unmounted, it is now safe to remove the
+        // node from the tree.
+
+        if (currentParentIsContainer) {
+          removeChildFromContainer(currentParent, node.stateNode);
+        } else {
+          removeChild(currentParent, node.stateNode);
+        } // Don't visit children because we already visited them.
+
+      } else if (node.tag === HostPortal) {
+        if (node.child !== null) {
+          // When we go into a portal, it becomes the parent to remove from.
+          // We will reassign it back when we pop the portal on the way up.
+          currentParent = node.stateNode.containerInfo;
+          currentParentIsContainer = true; // Visit children because portals might contain host components.
+
+          node.child.return = node;
+          node = node.child;
+          continue;
+        }
+      } else {
+        commitUnmount(finishedRoot, node); // Visit children because we may find more host components below.
+
+        if (node.child !== null) {
+          node.child.return = node;
+          node = node.child;
+          continue;
+        }
+      }
+
+      if (node === current) {
+        return;
+      }
+
+      while (node.sibling === null) {
+        if (node.return === null || node.return === current) {
+          return;
+        }
+
+        node = node.return;
+
+        if (node.tag === HostPortal) {
+          // When we go out of the portal, we need to restore the parent.
+          // Since we don't keep a stack of them, we will search for it.
+          currentParentIsValid = false;
+        }
+      }
+
+      node.sibling.return = node.return;
+      node = node.sibling;
+    }
+  }
+
+  function commitDeletion(finishedRoot, current, renderPriorityLevel) {
+    {
+      // Recursively delete all host nodes from the parent.
+      // Detach refs and call componentWillUnmount() on the whole subtree.
+      unmountHostComponents(finishedRoot, current);
+    }
+
+    var alternate = current.alternate;
+    detachFiberMutation(current);
+
+    if (alternate !== null) {
+      detachFiberMutation(alternate);
+    }
+  }
+
+  function commitWork(current, finishedWork) {
+
+    switch (finishedWork.tag) {
+      case FunctionComponent:
+      case ForwardRef:
+      case MemoComponent:
+      case SimpleMemoComponent:
+      case Block:
+        {
+          // Layout effects are destroyed during the mutation phase so that all
+          // destroy functions for all fibers are called before any create functions.
+          // This prevents sibling component effects from interfering with each other,
+          // e.g. a destroy function in one component should never override a ref set
+          // by a create function in another component during the same commit.
+          {
+            commitHookEffectListUnmount(Layout | HasEffect, finishedWork);
+          }
+
+          return;
+        }
+
+      case ClassComponent:
+        {
+          return;
+        }
+
+      case HostComponent:
+        {
+          var instance = finishedWork.stateNode;
+
+          if (instance != null) {
+            // Commit the work prepared earlier.
+            var newProps = finishedWork.memoizedProps; // For hydration we reuse the update path but we treat the oldProps
+            // as the newProps. The updatePayload will contain the real change in
+            // this case.
+
+            var oldProps = current !== null ? current.memoizedProps : newProps;
+            var type = finishedWork.type; // TODO: Type the updateQueue to be specific to host components.
+
+            var updatePayload = finishedWork.updateQueue;
+            finishedWork.updateQueue = null;
+
+            if (updatePayload !== null) {
+              commitUpdate(instance, updatePayload, type, oldProps, newProps);
+            }
+          }
+
+          return;
+        }
+
+      case HostText:
+        {
+          if (!(finishedWork.stateNode !== null)) {
+            {
+              throw Error( "This should have a text node initialized. This error is likely caused by a bug in React. Please file an issue." );
+            }
+          }
+
+          var textInstance = finishedWork.stateNode;
+          var newText = finishedWork.memoizedProps; // For hydration we reuse the update path but we treat the oldProps
+          // as the newProps. The updatePayload will contain the real change in
+          // this case.
+
+          var oldText = current !== null ? current.memoizedProps : newText;
+          commitTextUpdate(textInstance, oldText, newText);
+          return;
+        }
+
+      case HostRoot:
+        {
+          {
+            var _root = finishedWork.stateNode;
+
+            if (_root.hydrate) {
+              // We've just hydrated. No need to hydrate again.
+              _root.hydrate = false;
+              commitHydratedContainer(_root.containerInfo);
+            }
+          }
+
+          return;
+        }
+
+      case Profiler:
+        {
+          return;
+        }
+
+      case SuspenseComponent:
+        {
+          commitSuspenseComponent(finishedWork);
+          attachSuspenseRetryListeners(finishedWork);
+          return;
+        }
+
+      case SuspenseListComponent:
+        {
+          attachSuspenseRetryListeners(finishedWork);
+          return;
+        }
+
+      case IncompleteClassComponent:
+        {
+          return;
+        }
+
+      case FundamentalComponent:
+        {
+
+          break;
+        }
+
+      case ScopeComponent:
+        {
+
+          break;
+        }
+
+      case OffscreenComponent:
+      case LegacyHiddenComponent:
+        {
+          var newState = finishedWork.memoizedState;
+          var isHidden = newState !== null;
+          hideOrUnhideAllChildren(finishedWork, isHidden);
+          return;
+        }
+    }
+
+    {
+      {
+        throw Error( "This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue." );
+      }
+    }
+  }
+
+  function commitSuspenseComponent(finishedWork) {
+    var newState = finishedWork.memoizedState;
+
+    if (newState !== null) {
+      markCommitTimeOfFallback();
+
+      {
+        // Hide the Offscreen component that contains the primary children. TODO:
+        // Ideally, this effect would have been scheduled on the Offscreen fiber
+        // itself. That's how unhiding works: the Offscreen component schedules an
+        // effect on itself. However, in this case, the component didn't complete,
+        // so the fiber was never added to the effect list in the normal path. We
+        // could have appended it to the effect list in the Suspense component's
+        // second pass, but doing it this way is less complicated. This would be
+        // simpler if we got rid of the effect list and traversed the tree, like
+        // we're planning to do.
+        var primaryChildParent = finishedWork.child;
+        hideOrUnhideAllChildren(primaryChildParent, true);
+      }
+    }
+  }
+
+  function commitSuspenseHydrationCallbacks(finishedRoot, finishedWork) {
+
+    var newState = finishedWork.memoizedState;
+
+    if (newState === null) {
+      var current = finishedWork.alternate;
+
+      if (current !== null) {
+        var prevState = current.memoizedState;
+
+        if (prevState !== null) {
+          var suspenseInstance = prevState.dehydrated;
+
+          if (suspenseInstance !== null) {
+            commitHydratedSuspenseInstance(suspenseInstance);
+          }
+        }
+      }
+    }
+  }
+
+  function attachSuspenseRetryListeners(finishedWork) {
+    // If this boundary just timed out, then it will have a set of wakeables.
+    // For each wakeable, attach a listener so that when it resolves, React
+    // attempts to re-render the boundary in the primary (pre-timeout) state.
+    var wakeables = finishedWork.updateQueue;
+
+    if (wakeables !== null) {
+      finishedWork.updateQueue = null;
+      var retryCache = finishedWork.stateNode;
+
+      if (retryCache === null) {
+        retryCache = finishedWork.stateNode = new PossiblyWeakSet();
+      }
+
+      wakeables.forEach(function (wakeable) {
+        // Memoize using the boundary fiber to prevent redundant listeners.
+        var retry = resolveRetryWakeable.bind(null, finishedWork, wakeable);
+
+        if (!retryCache.has(wakeable)) {
+          {
+            if (wakeable.__reactDoNotTraceInteractions !== true) {
+              retry = unstable_wrap(retry);
+            }
+          }
+
+          retryCache.add(wakeable);
+          wakeable.then(retry, retry);
+        }
+      });
+    }
+  } // This function detects when a Suspense boundary goes from visible to hidden.
+  // It returns false if the boundary is already hidden.
+  // TODO: Use an effect tag.
+
+
+  function isSuspenseBoundaryBeingHidden(current, finishedWork) {
+    if (current !== null) {
+      var oldState = current.memoizedState;
+
+      if (oldState === null || oldState.dehydrated !== null) {
+        var newState = finishedWork.memoizedState;
+        return newState !== null && newState.dehydrated === null;
+      }
+    }
+
+    return false;
+  }
+
+  function commitResetTextContent(current) {
+
+    resetTextContent(current.stateNode);
+  }
+
+  var COMPONENT_TYPE = 0;
+  var HAS_PSEUDO_CLASS_TYPE = 1;
+  var ROLE_TYPE = 2;
+  var TEST_NAME_TYPE = 3;
+  var TEXT_TYPE = 4;
+
+  if (typeof Symbol === 'function' && Symbol.for) {
+    var symbolFor$1 = Symbol.for;
+    COMPONENT_TYPE = symbolFor$1('selector.component');
+    HAS_PSEUDO_CLASS_TYPE = symbolFor$1('selector.has_pseudo_class');
+    ROLE_TYPE = symbolFor$1('selector.role');
+    TEST_NAME_TYPE = symbolFor$1('selector.test_id');
+    TEXT_TYPE = symbolFor$1('selector.text');
+  }
+  var commitHooks = [];
+  function onCommitRoot$1() {
+    {
+      commitHooks.forEach(function (commitHook) {
+        return commitHook();
+      });
+    }
+  }
+
+  var ceil = Math.ceil;
+  var ReactCurrentDispatcher$2 = ReactSharedInternals.ReactCurrentDispatcher,
+      ReactCurrentOwner$2 = ReactSharedInternals.ReactCurrentOwner,
+      IsSomeRendererActing = ReactSharedInternals.IsSomeRendererActing;
+  var NoContext =
+  /*             */
+  0;
+  var BatchedContext =
+  /*               */
+  1;
+  var EventContext =
+  /*                 */
+  2;
+  var DiscreteEventContext =
+  /*         */
+  4;
+  var LegacyUnbatchedContext =
+  /*       */
+  8;
+  var RenderContext =
+  /*                */
+  16;
+  var CommitContext =
+  /*                */
+  32;
+  var RetryAfterError =
+  /*       */
+  64;
+  var RootIncomplete = 0;
+  var RootFatalErrored = 1;
+  var RootErrored = 2;
+  var RootSuspended = 3;
+  var RootSuspendedWithDelay = 4;
+  var RootCompleted = 5; // Describes where we are in the React execution stack
+
+  var executionContext = NoContext; // The root we're working on
+
+  var workInProgressRoot = null; // The fiber we're working on
+
+  var workInProgress = null; // The lanes we're rendering
+
+  var workInProgressRootRenderLanes = NoLanes; // Stack that allows components to change the render lanes for its subtree
+  // This is a superset of the lanes we started working on at the root. The only
+  // case where it's different from `workInProgressRootRenderLanes` is when we
+  // enter a subtree that is hidden and needs to be unhidden: Suspense and
+  // Offscreen component.
+  //
+  // Most things in the work loop should deal with workInProgressRootRenderLanes.
+  // Most things in begin/complete phases should deal with subtreeRenderLanes.
+
+  var subtreeRenderLanes = NoLanes;
+  var subtreeRenderLanesCursor = createCursor(NoLanes); // Whether to root completed, errored, suspended, etc.
+
+  var workInProgressRootExitStatus = RootIncomplete; // A fatal error, if one is thrown
+
+  var workInProgressRootFatalError = null; // "Included" lanes refer to lanes that were worked on during this render. It's
+  // slightly different than `renderLanes` because `renderLanes` can change as you
+  // enter and exit an Offscreen tree. This value is the combination of all render
+  // lanes for the entire render phase.
+
+  var workInProgressRootIncludedLanes = NoLanes; // The work left over by components that were visited during this render. Only
+  // includes unprocessed updates, not work in bailed out children.
+
+  var workInProgressRootSkippedLanes = NoLanes; // Lanes that were updated (in an interleaved event) during this render.
+
+  var workInProgressRootUpdatedLanes = NoLanes; // Lanes that were pinged (in an interleaved event) during this render.
+
+  var workInProgressRootPingedLanes = NoLanes;
+  var mostRecentlyUpdatedRoot = null; // The most recent time we committed a fallback. This lets us ensure a train
+  // model where we don't commit new loading states in too quick succession.
+
+  var globalMostRecentFallbackTime = 0;
+  var FALLBACK_THROTTLE_MS = 500; // The absolute time for when we should start giving up on rendering
+  // more and prefer CPU suspense heuristics instead.
+
+  var workInProgressRootRenderTargetTime = Infinity; // How long a render is supposed to take before we start following CPU
+  // suspense heuristics and opt out of rendering more content.
+
+  var RENDER_TIMEOUT_MS = 500;
+
+  function resetRenderTimer() {
+    workInProgressRootRenderTargetTime = now() + RENDER_TIMEOUT_MS;
+  }
+
+  function getRenderTargetTime() {
+    return workInProgressRootRenderTargetTime;
+  }
+  var nextEffect = null;
+  var hasUncaughtError = false;
+  var firstUncaughtError = null;
+  var legacyErrorBoundariesThatAlreadyFailed = null;
+  var rootDoesHavePassiveEffects = false;
+  var rootWithPendingPassiveEffects = null;
+  var pendingPassiveEffectsRenderPriority = NoPriority$1;
+  var pendingPassiveEffectsLanes = NoLanes;
+  var pendingPassiveHookEffectsMount = [];
+  var pendingPassiveHookEffectsUnmount = [];
+  var rootsWithPendingDiscreteUpdates = null; // Use these to prevent an infinite loop of nested updates
+
+  var NESTED_UPDATE_LIMIT = 50;
+  var nestedUpdateCount = 0;
+  var rootWithNestedUpdates = null;
+  var NESTED_PASSIVE_UPDATE_LIMIT = 50;
+  var nestedPassiveUpdateCount = 0; // Marks the need to reschedule pending interactions at these lanes
+  // during the commit phase. This enables them to be traced across components
+  // that spawn new work during render. E.g. hidden boundaries, suspended SSR
+  // hydration or SuspenseList.
+  // TODO: Can use a bitmask instead of an array
+
+  var spawnedWorkDuringRender = null; // If two updates are scheduled within the same event, we should treat their
+  // event times as simultaneous, even if the actual clock time has advanced
+  // between the first and second call.
+
+  var currentEventTime = NoTimestamp;
+  var currentEventWipLanes = NoLanes;
+  var currentEventPendingLanes = NoLanes; // Dev only flag that tracks if passive effects are currently being flushed.
+  // We warn about state updates for unmounted components differently in this case.
+
+  var isFlushingPassiveEffects = false;
+  var focusedInstanceHandle = null;
+  var shouldFireAfterActiveInstanceBlur = false;
+  function getWorkInProgressRoot() {
+    return workInProgressRoot;
+  }
+  function requestEventTime() {
+    if ((executionContext & (RenderContext | CommitContext)) !== NoContext) {
+      // We're inside React, so it's fine to read the actual time.
+      return now();
+    } // We're not inside React, so we may be in the middle of a browser event.
+
+
+    if (currentEventTime !== NoTimestamp) {
+      // Use the same start time for all updates until we enter React again.
+      return currentEventTime;
+    } // This is the first update since React yielded. Compute a new start time.
+
+
+    currentEventTime = now();
+    return currentEventTime;
+  }
+  function requestUpdateLane(fiber) {
+    // Special cases
+    var mode = fiber.mode;
+
+    if ((mode & BlockingMode) === NoMode) {
+      return SyncLane;
+    } else if ((mode & ConcurrentMode) === NoMode) {
+      return getCurrentPriorityLevel() === ImmediatePriority$1 ? SyncLane : SyncBatchedLane;
+    } // The algorithm for assigning an update to a lane should be stable for all
+    // updates at the same priority within the same event. To do this, the inputs
+    // to the algorithm must be the same. For example, we use the `renderLanes`
+    // to avoid choosing a lane that is already in the middle of rendering.
+    //
+    // However, the "included" lanes could be mutated in between updates in the
+    // same event, like if you perform an update inside `flushSync`. Or any other
+    // code path that might call `prepareFreshStack`.
+    //
+    // The trick we use is to cache the first of each of these inputs within an
+    // event. Then reset the cached values once we can be sure the event is over.
+    // Our heuristic for that is whenever we enter a concurrent work loop.
+    //
+    // We'll do the same for `currentEventPendingLanes` below.
+
+
+    if (currentEventWipLanes === NoLanes) {
+      currentEventWipLanes = workInProgressRootIncludedLanes;
+    }
+
+    var isTransition = requestCurrentTransition() !== NoTransition;
+
+    if (isTransition) {
+      if (currentEventPendingLanes !== NoLanes) {
+        currentEventPendingLanes = mostRecentlyUpdatedRoot !== null ? mostRecentlyUpdatedRoot.pendingLanes : NoLanes;
+      }
+
+      return findTransitionLane(currentEventWipLanes, currentEventPendingLanes);
+    } // TODO: Remove this dependency on the Scheduler priority.
+    // To do that, we're replacing it with an update lane priority.
+
+
+    var schedulerPriority = getCurrentPriorityLevel(); // The old behavior was using the priority level of the Scheduler.
+    // This couples React to the Scheduler internals, so we're replacing it
+    // with the currentUpdateLanePriority above. As an example of how this
+    // could be problematic, if we're not inside `Scheduler.runWithPriority`,
+    // then we'll get the priority of the current running Scheduler task,
+    // which is probably not what we want.
+
+    var lane;
+
+    if ( // TODO: Temporary. We're removing the concept of discrete updates.
+    (executionContext & DiscreteEventContext) !== NoContext && schedulerPriority === UserBlockingPriority$2) {
+      lane = findUpdateLane(InputDiscreteLanePriority, currentEventWipLanes);
+    } else {
+      var schedulerLanePriority = schedulerPriorityToLanePriority(schedulerPriority);
+
+      lane = findUpdateLane(schedulerLanePriority, currentEventWipLanes);
+    }
+
+    return lane;
+  }
+
+  function requestRetryLane(fiber) {
+    // This is a fork of `requestUpdateLane` designed specifically for Suspense
+    // "retries" — a special update that attempts to flip a Suspense boundary
+    // from its placeholder state to its primary/resolved state.
+    // Special cases
+    var mode = fiber.mode;
+
+    if ((mode & BlockingMode) === NoMode) {
+      return SyncLane;
+    } else if ((mode & ConcurrentMode) === NoMode) {
+      return getCurrentPriorityLevel() === ImmediatePriority$1 ? SyncLane : SyncBatchedLane;
+    } // See `requestUpdateLane` for explanation of `currentEventWipLanes`
+
+
+    if (currentEventWipLanes === NoLanes) {
+      currentEventWipLanes = workInProgressRootIncludedLanes;
+    }
+
+    return findRetryLane(currentEventWipLanes);
+  }
+
+  function scheduleUpdateOnFiber(fiber, lane, eventTime) {
+    checkForNestedUpdates();
+    warnAboutRenderPhaseUpdatesInDEV(fiber);
+    var root = markUpdateLaneFromFiberToRoot(fiber, lane);
+
+    if (root === null) {
+      warnAboutUpdateOnUnmountedFiberInDEV(fiber);
+      return null;
+    } // Mark that the root has a pending update.
+
+
+    markRootUpdated(root, lane, eventTime);
+
+    if (root === workInProgressRoot) {
+      // Received an update to a tree that's in the middle of rendering. Mark
+      // that there was an interleaved update work on this root. Unless the
+      // `deferRenderPhaseUpdateToNextBatch` flag is off and this is a render
+      // phase update. In that case, we don't treat render phase updates as if
+      // they were interleaved, for backwards compat reasons.
+      {
+        workInProgressRootUpdatedLanes = mergeLanes(workInProgressRootUpdatedLanes, lane);
+      }
+
+      if (workInProgressRootExitStatus === RootSuspendedWithDelay) {
+        // The root already suspended with a delay, which means this render
+        // definitely won't finish. Since we have a new update, let's mark it as
+        // suspended now, right before marking the incoming update. This has the
+        // effect of interrupting the current render and switching to the update.
+        // TODO: Make sure this doesn't override pings that happen while we've
+        // already started rendering.
+        markRootSuspended$1(root, workInProgressRootRenderLanes);
+      }
+    } // TODO: requestUpdateLanePriority also reads the priority. Pass the
+    // priority as an argument to that function and this one.
+
+
+    var priorityLevel = getCurrentPriorityLevel();
+
+    if (lane === SyncLane) {
+      if ( // Check if we're inside unbatchedUpdates
+      (executionContext & LegacyUnbatchedContext) !== NoContext && // Check if we're not already rendering
+      (executionContext & (RenderContext | CommitContext)) === NoContext) {
+        // Register pending interactions on the root to avoid losing traced interaction data.
+        schedulePendingInteractions(root, lane); // This is a legacy edge case. The initial mount of a ReactDOM.render-ed
+        // root inside of batchedUpdates should be synchronous, but layout updates
+        // should be deferred until the end of the batch.
+
+        performSyncWorkOnRoot(root);
+      } else {
+        ensureRootIsScheduled(root, eventTime);
+        schedulePendingInteractions(root, lane);
+
+        if (executionContext === NoContext) {
+          // Flush the synchronous work now, unless we're already working or inside
+          // a batch. This is intentionally inside scheduleUpdateOnFiber instead of
+          // scheduleCallbackForFiber to preserve the ability to schedule a callback
+          // without immediately flushing it. We only do this for user-initiated
+          // updates, to preserve historical behavior of legacy mode.
+          resetRenderTimer();
+          flushSyncCallbackQueue();
+        }
+      }
+    } else {
+      // Schedule a discrete update but only if it's not Sync.
+      if ((executionContext & DiscreteEventContext) !== NoContext && ( // Only updates at user-blocking priority or greater are considered
+      // discrete, even inside a discrete event.
+      priorityLevel === UserBlockingPriority$2 || priorityLevel === ImmediatePriority$1)) {
+        // This is the result of a discrete event. Track the lowest priority
+        // discrete update per root so we can flush them early, if needed.
+        if (rootsWithPendingDiscreteUpdates === null) {
+          rootsWithPendingDiscreteUpdates = new Set([root]);
+        } else {
+          rootsWithPendingDiscreteUpdates.add(root);
+        }
+      } // Schedule other updates after in case the callback is sync.
+
+
+      ensureRootIsScheduled(root, eventTime);
+      schedulePendingInteractions(root, lane);
+    } // We use this when assigning a lane for a transition inside
+    // `requestUpdateLane`. We assume it's the same as the root being updated,
+    // since in the common case of a single root app it probably is. If it's not
+    // the same root, then it's not a huge deal, we just might batch more stuff
+    // together more than necessary.
+
+
+    mostRecentlyUpdatedRoot = root;
+  } // This is split into a separate function so we can mark a fiber with pending
+  // work without treating it as a typical update that originates from an event;
+  // e.g. retrying a Suspense boundary isn't an update, but it does schedule work
+  // on a fiber.
+
+  function markUpdateLaneFromFiberToRoot(sourceFiber, lane) {
+    // Update the source fiber's lanes
+    sourceFiber.lanes = mergeLanes(sourceFiber.lanes, lane);
+    var alternate = sourceFiber.alternate;
+
+    if (alternate !== null) {
+      alternate.lanes = mergeLanes(alternate.lanes, lane);
+    }
+
+    {
+      if (alternate === null && (sourceFiber.flags & (Placement | Hydrating)) !== NoFlags) {
+        warnAboutUpdateOnNotYetMountedFiberInDEV(sourceFiber);
+      }
+    } // Walk the parent path to the root and update the child expiration time.
+
+
+    var node = sourceFiber;
+    var parent = sourceFiber.return;
+
+    while (parent !== null) {
+      parent.childLanes = mergeLanes(parent.childLanes, lane);
+      alternate = parent.alternate;
+
+      if (alternate !== null) {
+        alternate.childLanes = mergeLanes(alternate.childLanes, lane);
+      } else {
+        {
+          if ((parent.flags & (Placement | Hydrating)) !== NoFlags) {
+            warnAboutUpdateOnNotYetMountedFiberInDEV(sourceFiber);
+          }
+        }
+      }
+
+      node = parent;
+      parent = parent.return;
+    }
+
+    if (node.tag === HostRoot) {
+      var root = node.stateNode;
+      return root;
+    } else {
+      return null;
+    }
+  } // Use this function to schedule a task for a root. There's only one task per
+  // root; if a task was already scheduled, we'll check to make sure the priority
+  // of the existing task is the same as the priority of the next level that the
+  // root has work on. This function is called on every update, and right before
+  // exiting a task.
+
+
+  function ensureRootIsScheduled(root, currentTime) {
+    var existingCallbackNode = root.callbackNode; // Check if any lanes are being starved by other work. If so, mark them as
+    // expired so we know to work on those next.
+
+    markStarvedLanesAsExpired(root, currentTime); // Determine the next lanes to work on, and their priority.
+
+    var nextLanes = getNextLanes(root, root === workInProgressRoot ? workInProgressRootRenderLanes : NoLanes); // This returns the priority level computed during the `getNextLanes` call.
+
+    var newCallbackPriority = returnNextLanesPriority();
+
+    if (nextLanes === NoLanes) {
+      // Special case: There's nothing to work on.
+      if (existingCallbackNode !== null) {
+        cancelCallback(existingCallbackNode);
+        root.callbackNode = null;
+        root.callbackPriority = NoLanePriority;
+      }
+
+      return;
+    } // Check if there's an existing task. We may be able to reuse it.
+
+
+    if (existingCallbackNode !== null) {
+      var existingCallbackPriority = root.callbackPriority;
+
+      if (existingCallbackPriority === newCallbackPriority) {
+        // The priority hasn't changed. We can reuse the existing task. Exit.
+        return;
+      } // The priority changed. Cancel the existing callback. We'll schedule a new
+      // one below.
+
+
+      cancelCallback(existingCallbackNode);
+    } // Schedule a new callback.
+
+
+    var newCallbackNode;
+
+    if (newCallbackPriority === SyncLanePriority) {
+      // Special case: Sync React callbacks are scheduled on a special
+      // internal queue
+      newCallbackNode = scheduleSyncCallback(performSyncWorkOnRoot.bind(null, root));
+    } else if (newCallbackPriority === SyncBatchedLanePriority) {
+      newCallbackNode = scheduleCallback(ImmediatePriority$1, performSyncWorkOnRoot.bind(null, root));
+    } else {
+      var schedulerPriorityLevel = lanePriorityToSchedulerPriority(newCallbackPriority);
+      newCallbackNode = scheduleCallback(schedulerPriorityLevel, performConcurrentWorkOnRoot.bind(null, root));
+    }
+
+    root.callbackPriority = newCallbackPriority;
+    root.callbackNode = newCallbackNode;
+  } // This is the entry point for every concurrent task, i.e. anything that
+  // goes through Scheduler.
+
+
+  function performConcurrentWorkOnRoot(root) {
+    // Since we know we're in a React event, we can clear the current
+    // event time. The next update will compute a new event time.
+    currentEventTime = NoTimestamp;
+    currentEventWipLanes = NoLanes;
+    currentEventPendingLanes = NoLanes;
+
+    if (!((executionContext & (RenderContext | CommitContext)) === NoContext)) {
+      {
+        throw Error( "Should not already be working." );
+      }
+    } // Flush any pending passive effects before deciding which lanes to work on,
+    // in case they schedule additional work.
+
+
+    var originalCallbackNode = root.callbackNode;
+    var didFlushPassiveEffects = flushPassiveEffects();
+
+    if (didFlushPassiveEffects) {
+      // Something in the passive effect phase may have canceled the current task.
+      // Check if the task node for this root was changed.
+      if (root.callbackNode !== originalCallbackNode) {
+        // The current task was canceled. Exit. We don't need to call
+        // `ensureRootIsScheduled` because the check above implies either that
+        // there's a new task, or that there's no remaining work on this root.
+        return null;
+      }
+    } // Determine the next expiration time to work on, using the fields stored
+    // on the root.
+
+
+    var lanes = getNextLanes(root, root === workInProgressRoot ? workInProgressRootRenderLanes : NoLanes);
+
+    if (lanes === NoLanes) {
+      // Defensive coding. This is never expected to happen.
+      return null;
+    }
+
+    var exitStatus = renderRootConcurrent(root, lanes);
+
+    if (includesSomeLane(workInProgressRootIncludedLanes, workInProgressRootUpdatedLanes)) {
+      // The render included lanes that were updated during the render phase.
+      // For example, when unhiding a hidden tree, we include all the lanes
+      // that were previously skipped when the tree was hidden. That set of
+      // lanes is a superset of the lanes we started rendering with.
+      //
+      // So we'll throw out the current work and restart.
+      prepareFreshStack(root, NoLanes);
+    } else if (exitStatus !== RootIncomplete) {
+      if (exitStatus === RootErrored) {
+        executionContext |= RetryAfterError; // If an error occurred during hydration,
+        // discard server response and fall back to client side render.
+
+        if (root.hydrate) {
+          root.hydrate = false;
+          clearContainer(root.containerInfo);
+        } // If something threw an error, try rendering one more time. We'll render
+        // synchronously to block concurrent data mutations, and we'll includes
+        // all pending updates are included. If it still fails after the second
+        // attempt, we'll give up and commit the resulting tree.
+
+
+        lanes = getLanesToRetrySynchronouslyOnError(root);
+
+        if (lanes !== NoLanes) {
+          exitStatus = renderRootSync(root, lanes);
+        }
+      }
+
+      if (exitStatus === RootFatalErrored) {
+        var fatalError = workInProgressRootFatalError;
+        prepareFreshStack(root, NoLanes);
+        markRootSuspended$1(root, lanes);
+        ensureRootIsScheduled(root, now());
+        throw fatalError;
+      } // We now have a consistent tree. The next step is either to commit it,
+      // or, if something suspended, wait to commit it after a timeout.
+
+
+      var finishedWork = root.current.alternate;
+      root.finishedWork = finishedWork;
+      root.finishedLanes = lanes;
+      finishConcurrentRender(root, exitStatus, lanes);
+    }
+
+    ensureRootIsScheduled(root, now());
+
+    if (root.callbackNode === originalCallbackNode) {
+      // The task node scheduled for this root is the same one that's
+      // currently executed. Need to return a continuation.
+      return performConcurrentWorkOnRoot.bind(null, root);
+    }
+
+    return null;
+  }
+
+  function finishConcurrentRender(root, exitStatus, lanes) {
+    switch (exitStatus) {
+      case RootIncomplete:
+      case RootFatalErrored:
+        {
+          {
+            {
+              throw Error( "Root did not complete. This is a bug in React." );
+            }
+          }
+        }
+      // Flow knows about invariant, so it complains if I add a break
+      // statement, but eslint doesn't know about invariant, so it complains
+      // if I do. eslint-disable-next-line no-fallthrough
+
+      case RootErrored:
+        {
+          // We should have already attempted to retry this tree. If we reached
+          // this point, it errored again. Commit it.
+          commitRoot(root);
+          break;
+        }
+
+      case RootSuspended:
+        {
+          markRootSuspended$1(root, lanes); // We have an acceptable loading state. We need to figure out if we
+          // should immediately commit it or wait a bit.
+
+          if (includesOnlyRetries(lanes) && // do not delay if we're inside an act() scope
+          !shouldForceFlushFallbacksInDEV()) {
+            // This render only included retries, no updates. Throttle committing
+            // retries so that we don't show too many loading states too quickly.
+            var msUntilTimeout = globalMostRecentFallbackTime + FALLBACK_THROTTLE_MS - now(); // Don't bother with a very short suspense time.
+
+            if (msUntilTimeout > 10) {
+              var nextLanes = getNextLanes(root, NoLanes);
+
+              if (nextLanes !== NoLanes) {
+                // There's additional work on this root.
+                break;
+              }
+
+              var suspendedLanes = root.suspendedLanes;
+
+              if (!isSubsetOfLanes(suspendedLanes, lanes)) {
+                // We should prefer to render the fallback of at the last
+                // suspended level. Ping the last suspended level to try
+                // rendering it again.
+                // FIXME: What if the suspended lanes are Idle? Should not restart.
+                var eventTime = requestEventTime();
+                markRootPinged(root, suspendedLanes);
+                break;
+              } // The render is suspended, it hasn't timed out, and there's no
+              // lower priority work to do. Instead of committing the fallback
+              // immediately, wait for more data to arrive.
+
+
+              root.timeoutHandle = scheduleTimeout(commitRoot.bind(null, root), msUntilTimeout);
+              break;
+            }
+          } // The work expired. Commit immediately.
+
+
+          commitRoot(root);
+          break;
+        }
+
+      case RootSuspendedWithDelay:
+        {
+          markRootSuspended$1(root, lanes);
+
+          if (includesOnlyTransitions(lanes)) {
+            // This is a transition, so we should exit without committing a
+            // placeholder and without scheduling a timeout. Delay indefinitely
+            // until we receive more data.
+            break;
+          }
+
+          if (!shouldForceFlushFallbacksInDEV()) {
+            // This is not a transition, but we did trigger an avoided state.
+            // Schedule a placeholder to display after a short delay, using the Just
+            // Noticeable Difference.
+            // TODO: Is the JND optimization worth the added complexity? If this is
+            // the only reason we track the event time, then probably not.
+            // Consider removing.
+            var mostRecentEventTime = getMostRecentEventTime(root, lanes);
+            var eventTimeMs = mostRecentEventTime;
+            var timeElapsedMs = now() - eventTimeMs;
+
+            var _msUntilTimeout = jnd(timeElapsedMs) - timeElapsedMs; // Don't bother with a very short suspense time.
+
+
+            if (_msUntilTimeout > 10) {
+              // Instead of committing the fallback immediately, wait for more data
+              // to arrive.
+              root.timeoutHandle = scheduleTimeout(commitRoot.bind(null, root), _msUntilTimeout);
+              break;
+            }
+          } // Commit the placeholder.
+
+
+          commitRoot(root);
+          break;
+        }
+
+      case RootCompleted:
+        {
+          // The work completed. Ready to commit.
+          commitRoot(root);
+          break;
+        }
+
+      default:
+        {
+          {
+            {
+              throw Error( "Unknown root exit status." );
+            }
+          }
+        }
+    }
+  }
+
+  function markRootSuspended$1(root, suspendedLanes) {
+    // When suspending, we should always exclude lanes that were pinged or (more
+    // rarely, since we try to avoid it) updated during the render phase.
+    // TODO: Lol maybe there's a better way to factor this besides this
+    // obnoxiously named function :)
+    suspendedLanes = removeLanes(suspendedLanes, workInProgressRootPingedLanes);
+    suspendedLanes = removeLanes(suspendedLanes, workInProgressRootUpdatedLanes);
+    markRootSuspended(root, suspendedLanes);
+  } // This is the entry point for synchronous tasks that don't go
+  // through Scheduler
+
+
+  function performSyncWorkOnRoot(root) {
+    if (!((executionContext & (RenderContext | CommitContext)) === NoContext)) {
+      {
+        throw Error( "Should not already be working." );
+      }
+    }
+
+    flushPassiveEffects();
+    var lanes;
+    var exitStatus;
+
+    if (root === workInProgressRoot && includesSomeLane(root.expiredLanes, workInProgressRootRenderLanes)) {
+      // There's a partial tree, and at least one of its lanes has expired. Finish
+      // rendering it before rendering the rest of the expired work.
+      lanes = workInProgressRootRenderLanes;
+      exitStatus = renderRootSync(root, lanes);
+
+      if (includesSomeLane(workInProgressRootIncludedLanes, workInProgressRootUpdatedLanes)) {
+        // The render included lanes that were updated during the render phase.
+        // For example, when unhiding a hidden tree, we include all the lanes
+        // that were previously skipped when the tree was hidden. That set of
+        // lanes is a superset of the lanes we started rendering with.
+        //
+        // Note that this only happens when part of the tree is rendered
+        // concurrently. If the whole tree is rendered synchronously, then there
+        // are no interleaved events.
+        lanes = getNextLanes(root, lanes);
+        exitStatus = renderRootSync(root, lanes);
+      }
+    } else {
+      lanes = getNextLanes(root, NoLanes);
+      exitStatus = renderRootSync(root, lanes);
+    }
+
+    if (root.tag !== LegacyRoot && exitStatus === RootErrored) {
+      executionContext |= RetryAfterError; // If an error occurred during hydration,
+      // discard server response and fall back to client side render.
+
+      if (root.hydrate) {
+        root.hydrate = false;
+        clearContainer(root.containerInfo);
+      } // If something threw an error, try rendering one more time. We'll render
+      // synchronously to block concurrent data mutations, and we'll includes
+      // all pending updates are included. If it still fails after the second
+      // attempt, we'll give up and commit the resulting tree.
+
+
+      lanes = getLanesToRetrySynchronouslyOnError(root);
+
+      if (lanes !== NoLanes) {
+        exitStatus = renderRootSync(root, lanes);
+      }
+    }
+
+    if (exitStatus === RootFatalErrored) {
+      var fatalError = workInProgressRootFatalError;
+      prepareFreshStack(root, NoLanes);
+      markRootSuspended$1(root, lanes);
+      ensureRootIsScheduled(root, now());
+      throw fatalError;
+    } // We now have a consistent tree. Because this is a sync render, we
+    // will commit it even if something suspended.
+
+
+    var finishedWork = root.current.alternate;
+    root.finishedWork = finishedWork;
+    root.finishedLanes = lanes;
+    commitRoot(root); // Before exiting, make sure there's a callback scheduled for the next
+    // pending level.
+
+    ensureRootIsScheduled(root, now());
+    return null;
+  }
+  function flushDiscreteUpdates() {
+    // TODO: Should be able to flush inside batchedUpdates, but not inside `act`.
+    // However, `act` uses `batchedUpdates`, so there's no way to distinguish
+    // those two cases. Need to fix this before exposing flushDiscreteUpdates
+    // as a public API.
+    if ((executionContext & (BatchedContext | RenderContext | CommitContext)) !== NoContext) {
+      {
+        if ((executionContext & RenderContext) !== NoContext) {
+          error('unstable_flushDiscreteUpdates: Cannot flush updates when React is ' + 'already rendering.');
+        }
+      } // We're already rendering, so we can't synchronously flush pending work.
+      // This is probably a nested event dispatch triggered by a lifecycle/effect,
+      // like `el.focus()`. Exit.
+
+
+      return;
+    }
+
+    flushPendingDiscreteUpdates(); // If the discrete updates scheduled passive effects, flush them now so that
+    // they fire before the next serial event.
+
+    flushPassiveEffects();
+  }
+
+  function flushPendingDiscreteUpdates() {
+    if (rootsWithPendingDiscreteUpdates !== null) {
+      // For each root with pending discrete updates, schedule a callback to
+      // immediately flush them.
+      var roots = rootsWithPendingDiscreteUpdates;
+      rootsWithPendingDiscreteUpdates = null;
+      roots.forEach(function (root) {
+        markDiscreteUpdatesExpired(root);
+        ensureRootIsScheduled(root, now());
+      });
+    } // Now flush the immediate queue.
+
+
+    flushSyncCallbackQueue();
+  }
+
+  function batchedUpdates$1(fn, a) {
+    var prevExecutionContext = executionContext;
+    executionContext |= BatchedContext;
+
+    try {
+      return fn(a);
+    } finally {
+      executionContext = prevExecutionContext;
+
+      if (executionContext === NoContext) {
+        // Flush the immediate callbacks that were scheduled during this batch
+        resetRenderTimer();
+        flushSyncCallbackQueue();
+      }
+    }
+  }
+  function batchedEventUpdates$1(fn, a) {
+    var prevExecutionContext = executionContext;
+    executionContext |= EventContext;
+
+    try {
+      return fn(a);
+    } finally {
+      executionContext = prevExecutionContext;
+
+      if (executionContext === NoContext) {
+        // Flush the immediate callbacks that were scheduled during this batch
+        resetRenderTimer();
+        flushSyncCallbackQueue();
+      }
+    }
+  }
+  function discreteUpdates$1(fn, a, b, c, d) {
+    var prevExecutionContext = executionContext;
+    executionContext |= DiscreteEventContext;
+
+    {
+      try {
+        return runWithPriority$1(UserBlockingPriority$2, fn.bind(null, a, b, c, d));
+      } finally {
+        executionContext = prevExecutionContext;
+
+        if (executionContext === NoContext) {
+          // Flush the immediate callbacks that were scheduled during this batch
+          resetRenderTimer();
+          flushSyncCallbackQueue();
+        }
+      }
+    }
+  }
+  function unbatchedUpdates(fn, a) {
+    var prevExecutionContext = executionContext;
+    executionContext &= ~BatchedContext;
+    executionContext |= LegacyUnbatchedContext;
+
+    try {
+      return fn(a);
+    } finally {
+      executionContext = prevExecutionContext;
+
+      if (executionContext === NoContext) {
+        // Flush the immediate callbacks that were scheduled during this batch
+        resetRenderTimer();
+        flushSyncCallbackQueue();
+      }
+    }
+  }
+  function flushSync(fn, a) {
+    var prevExecutionContext = executionContext;
+
+    if ((prevExecutionContext & (RenderContext | CommitContext)) !== NoContext) {
+      {
+        error('flushSync was called from inside a lifecycle method. React cannot ' + 'flush when React is already rendering. Consider moving this call to ' + 'a scheduler task or micro task.');
+      }
+
+      return fn(a);
+    }
+
+    executionContext |= BatchedContext;
+
+    {
+      try {
+        if (fn) {
+          return runWithPriority$1(ImmediatePriority$1, fn.bind(null, a));
+        } else {
+          return undefined;
+        }
+      } finally {
+        executionContext = prevExecutionContext; // Flush the immediate callbacks that were scheduled during this batch.
+        // Note that this will happen even if batchedUpdates is higher up
+        // the stack.
+
+        flushSyncCallbackQueue();
+      }
+    }
+  }
+  function pushRenderLanes(fiber, lanes) {
+    push(subtreeRenderLanesCursor, subtreeRenderLanes, fiber);
+    subtreeRenderLanes = mergeLanes(subtreeRenderLanes, lanes);
+    workInProgressRootIncludedLanes = mergeLanes(workInProgressRootIncludedLanes, lanes);
+  }
+  function popRenderLanes(fiber) {
+    subtreeRenderLanes = subtreeRenderLanesCursor.current;
+    pop(subtreeRenderLanesCursor, fiber);
+  }
+
+  function prepareFreshStack(root, lanes) {
+    root.finishedWork = null;
+    root.finishedLanes = NoLanes;
+    var timeoutHandle = root.timeoutHandle;
+
+    if (timeoutHandle !== noTimeout) {
+      // The root previous suspended and scheduled a timeout to commit a fallback
+      // state. Now that we have additional work, cancel the timeout.
+      root.timeoutHandle = noTimeout; // $FlowFixMe Complains noTimeout is not a TimeoutID, despite the check above
+
+      cancelTimeout(timeoutHandle);
+    }
+
+    if (workInProgress !== null) {
+      var interruptedWork = workInProgress.return;
+
+      while (interruptedWork !== null) {
+        unwindInterruptedWork(interruptedWork);
+        interruptedWork = interruptedWork.return;
+      }
+    }
+
+    workInProgressRoot = root;
+    workInProgress = createWorkInProgress(root.current, null);
+    workInProgressRootRenderLanes = subtreeRenderLanes = workInProgressRootIncludedLanes = lanes;
+    workInProgressRootExitStatus = RootIncomplete;
+    workInProgressRootFatalError = null;
+    workInProgressRootSkippedLanes = NoLanes;
+    workInProgressRootUpdatedLanes = NoLanes;
+    workInProgressRootPingedLanes = NoLanes;
+
+    {
+      spawnedWorkDuringRender = null;
+    }
+
+    {
+      ReactStrictModeWarnings.discardPendingWarnings();
+    }
+  }
+
+  function handleError(root, thrownValue) {
+    do {
+      var erroredWork = workInProgress;
+
+      try {
+        // Reset module-level state that was set during the render phase.
+        resetContextDependencies();
+        resetHooksAfterThrow();
+        resetCurrentFiber(); // TODO: I found and added this missing line while investigating a
+        // separate issue. Write a regression test using string refs.
+
+        ReactCurrentOwner$2.current = null;
+
+        if (erroredWork === null || erroredWork.return === null) {
+          // Expected to be working on a non-root fiber. This is a fatal error
+          // because there's no ancestor that can handle it; the root is
+          // supposed to capture all errors that weren't caught by an error
+          // boundary.
+          workInProgressRootExitStatus = RootFatalErrored;
+          workInProgressRootFatalError = thrownValue; // Set `workInProgress` to null. This represents advancing to the next
+          // sibling, or the parent if there are no siblings. But since the root
+          // has no siblings nor a parent, we set it to null. Usually this is
+          // handled by `completeUnitOfWork` or `unwindWork`, but since we're
+          // intentionally not calling those, we need set it here.
+          // TODO: Consider calling `unwindWork` to pop the contexts.
+
+          workInProgress = null;
+          return;
+        }
+
+        if (enableProfilerTimer && erroredWork.mode & ProfileMode) {
+          // Record the time spent rendering before an error was thrown. This
+          // avoids inaccurate Profiler durations in the case of a
+          // suspended render.
+          stopProfilerTimerIfRunningAndRecordDelta(erroredWork, true);
+        }
+
+        throwException(root, erroredWork.return, erroredWork, thrownValue, workInProgressRootRenderLanes);
+        completeUnitOfWork(erroredWork);
+      } catch (yetAnotherThrownValue) {
+        // Something in the return path also threw.
+        thrownValue = yetAnotherThrownValue;
+
+        if (workInProgress === erroredWork && erroredWork !== null) {
+          // If this boundary has already errored, then we had trouble processing
+          // the error. Bubble it to the next boundary.
+          erroredWork = erroredWork.return;
+          workInProgress = erroredWork;
+        } else {
+          erroredWork = workInProgress;
+        }
+
+        continue;
+      } // Return to the normal work loop.
+
+
+      return;
+    } while (true);
+  }
+
+  function pushDispatcher() {
+    var prevDispatcher = ReactCurrentDispatcher$2.current;
+    ReactCurrentDispatcher$2.current = ContextOnlyDispatcher;
+
+    if (prevDispatcher === null) {
+      // The React isomorphic package does not include a default dispatcher.
+      // Instead the first renderer will lazily attach one, in order to give
+      // nicer error messages.
+      return ContextOnlyDispatcher;
+    } else {
+      return prevDispatcher;
+    }
+  }
+
+  function popDispatcher(prevDispatcher) {
+    ReactCurrentDispatcher$2.current = prevDispatcher;
+  }
+
+  function pushInteractions(root) {
+    {
+      var prevInteractions = __interactionsRef.current;
+      __interactionsRef.current = root.memoizedInteractions;
+      return prevInteractions;
+    }
+  }
+
+  function popInteractions(prevInteractions) {
+    {
+      __interactionsRef.current = prevInteractions;
+    }
+  }
+
+  function markCommitTimeOfFallback() {
+    globalMostRecentFallbackTime = now();
+  }
+  function markSkippedUpdateLanes(lane) {
+    workInProgressRootSkippedLanes = mergeLanes(lane, workInProgressRootSkippedLanes);
+  }
+  function renderDidSuspend() {
+    if (workInProgressRootExitStatus === RootIncomplete) {
+      workInProgressRootExitStatus = RootSuspended;
+    }
+  }
+  function renderDidSuspendDelayIfPossible() {
+    if (workInProgressRootExitStatus === RootIncomplete || workInProgressRootExitStatus === RootSuspended) {
+      workInProgressRootExitStatus = RootSuspendedWithDelay;
+    } // Check if there are updates that we skipped tree that might have unblocked
+    // this render.
+
+
+    if (workInProgressRoot !== null && (includesNonIdleWork(workInProgressRootSkippedLanes) || includesNonIdleWork(workInProgressRootUpdatedLanes))) {
+      // Mark the current render as suspended so that we switch to working on
+      // the updates that were skipped. Usually we only suspend at the end of
+      // the render phase.
+      // TODO: We should probably always mark the root as suspended immediately
+      // (inside this function), since by suspending at the end of the render
+      // phase introduces a potential mistake where we suspend lanes that were
+      // pinged or updated while we were rendering.
+      markRootSuspended$1(workInProgressRoot, workInProgressRootRenderLanes);
+    }
+  }
+  function renderDidError() {
+    if (workInProgressRootExitStatus !== RootCompleted) {
+      workInProgressRootExitStatus = RootErrored;
+    }
+  } // Called during render to determine if anything has suspended.
+  // Returns false if we're not sure.
+
+  function renderHasNotSuspendedYet() {
+    // If something errored or completed, we can't really be sure,
+    // so those are false.
+    return workInProgressRootExitStatus === RootIncomplete;
+  }
+
+  function renderRootSync(root, lanes) {
+    var prevExecutionContext = executionContext;
+    executionContext |= RenderContext;
+    var prevDispatcher = pushDispatcher(); // If the root or lanes have changed, throw out the existing stack
+    // and prepare a fresh one. Otherwise we'll continue where we left off.
+
+    if (workInProgressRoot !== root || workInProgressRootRenderLanes !== lanes) {
+      prepareFreshStack(root, lanes);
+      startWorkOnPendingInteractions(root, lanes);
+    }
+
+    var prevInteractions = pushInteractions(root);
+
+    do {
+      try {
+        workLoopSync();
+        break;
+      } catch (thrownValue) {
+        handleError(root, thrownValue);
+      }
+    } while (true);
+
+    resetContextDependencies();
+
+    {
+      popInteractions(prevInteractions);
+    }
+
+    executionContext = prevExecutionContext;
+    popDispatcher(prevDispatcher);
+
+    if (workInProgress !== null) {
+      // This is a sync render, so we should have finished the whole tree.
+      {
+        {
+          throw Error( "Cannot commit an incomplete root. This error is likely caused by a bug in React. Please file an issue." );
+        }
+      }
+    }
+
+
+    workInProgressRoot = null;
+    workInProgressRootRenderLanes = NoLanes;
+    return workInProgressRootExitStatus;
+  } // The work loop is an extremely hot path. Tell Closure not to inline it.
+
+  /** @noinline */
+
+
+  function workLoopSync() {
+    // Already timed out, so perform work without checking if we need to yield.
+    while (workInProgress !== null) {
+      performUnitOfWork(workInProgress);
+    }
+  }
+
+  function renderRootConcurrent(root, lanes) {
+    var prevExecutionContext = executionContext;
+    executionContext |= RenderContext;
+    var prevDispatcher = pushDispatcher(); // If the root or lanes have changed, throw out the existing stack
+    // and prepare a fresh one. Otherwise we'll continue where we left off.
+
+    if (workInProgressRoot !== root || workInProgressRootRenderLanes !== lanes) {
+      resetRenderTimer();
+      prepareFreshStack(root, lanes);
+      startWorkOnPendingInteractions(root, lanes);
+    }
+
+    var prevInteractions = pushInteractions(root);
+
+    do {
+      try {
+        workLoopConcurrent();
+        break;
+      } catch (thrownValue) {
+        handleError(root, thrownValue);
+      }
+    } while (true);
+
+    resetContextDependencies();
+
+    {
+      popInteractions(prevInteractions);
+    }
+
+    popDispatcher(prevDispatcher);
+    executionContext = prevExecutionContext;
+
+
+    if (workInProgress !== null) {
+
+      return RootIncomplete;
+    } else {
+
+
+      workInProgressRoot = null;
+      workInProgressRootRenderLanes = NoLanes; // Return the final exit status.
+
+      return workInProgressRootExitStatus;
+    }
+  }
+  /** @noinline */
+
+
+  function workLoopConcurrent() {
+    // Perform work until Scheduler asks us to yield
+    while (workInProgress !== null && !shouldYield()) {
+      performUnitOfWork(workInProgress);
+    }
+  }
+
+  function performUnitOfWork(unitOfWork) {
+    // The current, flushed, state of this fiber is the alternate. Ideally
+    // nothing should rely on this, but relying on it here means that we don't
+    // need an additional field on the work in progress.
+    var current = unitOfWork.alternate;
+    setCurrentFiber(unitOfWork);
+    var next;
+
+    if ( (unitOfWork.mode & ProfileMode) !== NoMode) {
+      startProfilerTimer(unitOfWork);
+      next = beginWork$1(current, unitOfWork, subtreeRenderLanes);
+      stopProfilerTimerIfRunningAndRecordDelta(unitOfWork, true);
+    } else {
+      next = beginWork$1(current, unitOfWork, subtreeRenderLanes);
+    }
+
+    resetCurrentFiber();
+    unitOfWork.memoizedProps = unitOfWork.pendingProps;
+
+    if (next === null) {
+      // If this doesn't spawn new work, complete the current work.
+      completeUnitOfWork(unitOfWork);
+    } else {
+      workInProgress = next;
+    }
+
+    ReactCurrentOwner$2.current = null;
+  }
+
+  function completeUnitOfWork(unitOfWork) {
+    // Attempt to complete the current unit of work, then move to the next
+    // sibling. If there are no more siblings, return to the parent fiber.
+    var completedWork = unitOfWork;
+
+    do {
+      // The current, flushed, state of this fiber is the alternate. Ideally
+      // nothing should rely on this, but relying on it here means that we don't
+      // need an additional field on the work in progress.
+      var current = completedWork.alternate;
+      var returnFiber = completedWork.return; // Check if the work completed or if something threw.
+
+      if ((completedWork.flags & Incomplete) === NoFlags) {
+        setCurrentFiber(completedWork);
+        var next = void 0;
+
+        if ( (completedWork.mode & ProfileMode) === NoMode) {
+          next = completeWork(current, completedWork, subtreeRenderLanes);
+        } else {
+          startProfilerTimer(completedWork);
+          next = completeWork(current, completedWork, subtreeRenderLanes); // Update render duration assuming we didn't error.
+
+          stopProfilerTimerIfRunningAndRecordDelta(completedWork, false);
+        }
+
+        resetCurrentFiber();
+
+        if (next !== null) {
+          // Completing this fiber spawned new work. Work on that next.
+          workInProgress = next;
+          return;
+        }
+
+        resetChildLanes(completedWork);
+
+        if (returnFiber !== null && // Do not append effects to parents if a sibling failed to complete
+        (returnFiber.flags & Incomplete) === NoFlags) {
+          // Append all the effects of the subtree and this fiber onto the effect
+          // list of the parent. The completion order of the children affects the
+          // side-effect order.
+          if (returnFiber.firstEffect === null) {
+            returnFiber.firstEffect = completedWork.firstEffect;
+          }
+
+          if (completedWork.lastEffect !== null) {
+            if (returnFiber.lastEffect !== null) {
+              returnFiber.lastEffect.nextEffect = completedWork.firstEffect;
+            }
+
+            returnFiber.lastEffect = completedWork.lastEffect;
+          } // If this fiber had side-effects, we append it AFTER the children's
+          // side-effects. We can perform certain side-effects earlier if needed,
+          // by doing multiple passes over the effect list. We don't want to
+          // schedule our own side-effect on our own list because if end up
+          // reusing children we'll schedule this effect onto itself since we're
+          // at the end.
+
+
+          var flags = completedWork.flags; // Skip both NoWork and PerformedWork tags when creating the effect
+          // list. PerformedWork effect is read by React DevTools but shouldn't be
+          // committed.
+
+          if (flags > PerformedWork) {
+            if (returnFiber.lastEffect !== null) {
+              returnFiber.lastEffect.nextEffect = completedWork;
+            } else {
+              returnFiber.firstEffect = completedWork;
+            }
+
+            returnFiber.lastEffect = completedWork;
+          }
+        }
+      } else {
+        // This fiber did not complete because something threw. Pop values off
+        // the stack without entering the complete phase. If this is a boundary,
+        // capture values if possible.
+        var _next = unwindWork(completedWork); // Because this fiber did not complete, don't reset its expiration time.
+
+
+        if (_next !== null) {
+          // If completing this work spawned new work, do that next. We'll come
+          // back here again.
+          // Since we're restarting, remove anything that is not a host effect
+          // from the effect tag.
+          _next.flags &= HostEffectMask;
+          workInProgress = _next;
+          return;
+        }
+
+        if ( (completedWork.mode & ProfileMode) !== NoMode) {
+          // Record the render duration for the fiber that errored.
+          stopProfilerTimerIfRunningAndRecordDelta(completedWork, false); // Include the time spent working on failed children before continuing.
+
+          var actualDuration = completedWork.actualDuration;
+          var child = completedWork.child;
+
+          while (child !== null) {
+            actualDuration += child.actualDuration;
+            child = child.sibling;
+          }
+
+          completedWork.actualDuration = actualDuration;
+        }
+
+        if (returnFiber !== null) {
+          // Mark the parent fiber as incomplete and clear its effect list.
+          returnFiber.firstEffect = returnFiber.lastEffect = null;
+          returnFiber.flags |= Incomplete;
+        }
+      }
+
+      var siblingFiber = completedWork.sibling;
+
+      if (siblingFiber !== null) {
+        // If there is more work to do in this returnFiber, do that next.
+        workInProgress = siblingFiber;
+        return;
+      } // Otherwise, return to the parent
+
+
+      completedWork = returnFiber; // Update the next thing we're working on in case something throws.
+
+      workInProgress = completedWork;
+    } while (completedWork !== null); // We've reached the root.
+
+
+    if (workInProgressRootExitStatus === RootIncomplete) {
+      workInProgressRootExitStatus = RootCompleted;
+    }
+  }
+
+  function resetChildLanes(completedWork) {
+    if ( // TODO: Move this check out of the hot path by moving `resetChildLanes`
+    // to switch statement in `completeWork`.
+    (completedWork.tag === LegacyHiddenComponent || completedWork.tag === OffscreenComponent) && completedWork.memoizedState !== null && !includesSomeLane(subtreeRenderLanes, OffscreenLane) && (completedWork.mode & ConcurrentMode) !== NoLanes) {
+      // The children of this component are hidden. Don't bubble their
+      // expiration times.
+      return;
+    }
+
+    var newChildLanes = NoLanes; // Bubble up the earliest expiration time.
+
+    if ( (completedWork.mode & ProfileMode) !== NoMode) {
+      // In profiling mode, resetChildExpirationTime is also used to reset
+      // profiler durations.
+      var actualDuration = completedWork.actualDuration;
+      var treeBaseDuration = completedWork.selfBaseDuration; // When a fiber is cloned, its actualDuration is reset to 0. This value will
+      // only be updated if work is done on the fiber (i.e. it doesn't bailout).
+      // When work is done, it should bubble to the parent's actualDuration. If
+      // the fiber has not been cloned though, (meaning no work was done), then
+      // this value will reflect the amount of time spent working on a previous
+      // render. In that case it should not bubble. We determine whether it was
+      // cloned by comparing the child pointer.
+
+      var shouldBubbleActualDurations = completedWork.alternate === null || completedWork.child !== completedWork.alternate.child;
+      var child = completedWork.child;
+
+      while (child !== null) {
+        newChildLanes = mergeLanes(newChildLanes, mergeLanes(child.lanes, child.childLanes));
+
+        if (shouldBubbleActualDurations) {
+          actualDuration += child.actualDuration;
+        }
+
+        treeBaseDuration += child.treeBaseDuration;
+        child = child.sibling;
+      }
+
+      var isTimedOutSuspense = completedWork.tag === SuspenseComponent && completedWork.memoizedState !== null;
+
+      if (isTimedOutSuspense) {
+        // Don't count time spent in a timed out Suspense subtree as part of the base duration.
+        var primaryChildFragment = completedWork.child;
+
+        if (primaryChildFragment !== null) {
+          treeBaseDuration -= primaryChildFragment.treeBaseDuration;
+        }
+      }
+
+      completedWork.actualDuration = actualDuration;
+      completedWork.treeBaseDuration = treeBaseDuration;
+    } else {
+      var _child = completedWork.child;
+
+      while (_child !== null) {
+        newChildLanes = mergeLanes(newChildLanes, mergeLanes(_child.lanes, _child.childLanes));
+        _child = _child.sibling;
+      }
+    }
+
+    completedWork.childLanes = newChildLanes;
+  }
+
+  function commitRoot(root) {
+    var renderPriorityLevel = getCurrentPriorityLevel();
+    runWithPriority$1(ImmediatePriority$1, commitRootImpl.bind(null, root, renderPriorityLevel));
+    return null;
+  }
+
+  function commitRootImpl(root, renderPriorityLevel) {
+    do {
+      // `flushPassiveEffects` will call `flushSyncUpdateQueue` at the end, which
+      // means `flushPassiveEffects` will sometimes result in additional
+      // passive effects. So we need to keep flushing in a loop until there are
+      // no more pending effects.
+      // TODO: Might be better if `flushPassiveEffects` did not automatically
+      // flush synchronous work at the end, to avoid factoring hazards like this.
+      flushPassiveEffects();
+    } while (rootWithPendingPassiveEffects !== null);
+
+    flushRenderPhaseStrictModeWarningsInDEV();
+
+    if (!((executionContext & (RenderContext | CommitContext)) === NoContext)) {
+      {
+        throw Error( "Should not already be working." );
+      }
+    }
+
+    var finishedWork = root.finishedWork;
+    var lanes = root.finishedLanes;
+
+    if (finishedWork === null) {
+
+      return null;
+    }
+
+    root.finishedWork = null;
+    root.finishedLanes = NoLanes;
+
+    if (!(finishedWork !== root.current)) {
+      {
+        throw Error( "Cannot commit the same tree as before. This error is likely caused by a bug in React. Please file an issue." );
+      }
+    } // commitRoot never returns a continuation; it always finishes synchronously.
+    // So we can clear these now to allow a new callback to be scheduled.
+
+
+    root.callbackNode = null; // Update the first and last pending times on this root. The new first
+    // pending time is whatever is left on the root fiber.
+
+    var remainingLanes = mergeLanes(finishedWork.lanes, finishedWork.childLanes);
+    markRootFinished(root, remainingLanes); // Clear already finished discrete updates in case that a later call of
+    // `flushDiscreteUpdates` starts a useless render pass which may cancels
+    // a scheduled timeout.
+
+    if (rootsWithPendingDiscreteUpdates !== null) {
+      if (!hasDiscreteLanes(remainingLanes) && rootsWithPendingDiscreteUpdates.has(root)) {
+        rootsWithPendingDiscreteUpdates.delete(root);
+      }
+    }
+
+    if (root === workInProgressRoot) {
+      // We can reset these now that they are finished.
+      workInProgressRoot = null;
+      workInProgress = null;
+      workInProgressRootRenderLanes = NoLanes;
+    } // Get the list of effects.
+
+
+    var firstEffect;
+
+    if (finishedWork.flags > PerformedWork) {
+      // A fiber's effect list consists only of its children, not itself. So if
+      // the root has an effect, we need to add it to the end of the list. The
+      // resulting list is the set that would belong to the root's parent, if it
+      // had one; that is, all the effects in the tree including the root.
+      if (finishedWork.lastEffect !== null) {
+        finishedWork.lastEffect.nextEffect = finishedWork;
+        firstEffect = finishedWork.firstEffect;
+      } else {
+        firstEffect = finishedWork;
+      }
+    } else {
+      // There is no effect on the root.
+      firstEffect = finishedWork.firstEffect;
+    }
+
+    if (firstEffect !== null) {
+
+      var prevExecutionContext = executionContext;
+      executionContext |= CommitContext;
+      var prevInteractions = pushInteractions(root); // Reset this to null before calling lifecycles
+
+      ReactCurrentOwner$2.current = null; // The commit phase is broken into several sub-phases. We do a separate pass
+      // of the effect list for each phase: all mutation effects come before all
+      // layout effects, and so on.
+      // The first phase a "before mutation" phase. We use this phase to read the
+      // state of the host tree right before we mutate it. This is where
+      // getSnapshotBeforeUpdate is called.
+
+      focusedInstanceHandle = prepareForCommit(root.containerInfo);
+      shouldFireAfterActiveInstanceBlur = false;
+      nextEffect = firstEffect;
+
+      do {
+        {
+          invokeGuardedCallback(null, commitBeforeMutationEffects, null);
+
+          if (hasCaughtError()) {
+            if (!(nextEffect !== null)) {
+              {
+                throw Error( "Should be working on an effect." );
+              }
+            }
+
+            var error = clearCaughtError();
+            captureCommitPhaseError(nextEffect, error);
+            nextEffect = nextEffect.nextEffect;
+          }
+        }
+      } while (nextEffect !== null); // We no longer need to track the active instance fiber
+
+
+      focusedInstanceHandle = null;
+
+      {
+        // Mark the current commit time to be shared by all Profilers in this
+        // batch. This enables them to be grouped later.
+        recordCommitTime();
+      } // The next phase is the mutation phase, where we mutate the host tree.
+
+
+      nextEffect = firstEffect;
+
+      do {
+        {
+          invokeGuardedCallback(null, commitMutationEffects, null, root, renderPriorityLevel);
+
+          if (hasCaughtError()) {
+            if (!(nextEffect !== null)) {
+              {
+                throw Error( "Should be working on an effect." );
+              }
+            }
+
+            var _error = clearCaughtError();
+
+            captureCommitPhaseError(nextEffect, _error);
+            nextEffect = nextEffect.nextEffect;
+          }
+        }
+      } while (nextEffect !== null);
+
+      resetAfterCommit(root.containerInfo); // The work-in-progress tree is now the current tree. This must come after
+      // the mutation phase, so that the previous tree is still current during
+      // componentWillUnmount, but before the layout phase, so that the finished
+      // work is current during componentDidMount/Update.
+
+      root.current = finishedWork; // The next phase is the layout phase, where we call effects that read
+      // the host tree after it's been mutated. The idiomatic use case for this is
+      // layout, but class component lifecycles also fire here for legacy reasons.
+
+      nextEffect = firstEffect;
+
+      do {
+        {
+          invokeGuardedCallback(null, commitLayoutEffects, null, root, lanes);
+
+          if (hasCaughtError()) {
+            if (!(nextEffect !== null)) {
+              {
+                throw Error( "Should be working on an effect." );
+              }
+            }
+
+            var _error2 = clearCaughtError();
+
+            captureCommitPhaseError(nextEffect, _error2);
+            nextEffect = nextEffect.nextEffect;
+          }
+        }
+      } while (nextEffect !== null);
+
+      nextEffect = null; // Tell Scheduler to yield at the end of the frame, so the browser has an
+      // opportunity to paint.
+
+      requestPaint();
+
+      {
+        popInteractions(prevInteractions);
+      }
+
+      executionContext = prevExecutionContext;
+    } else {
+      // No effects.
+      root.current = finishedWork; // Measure these anyway so the flamegraph explicitly shows that there were
+      // no effects.
+      // TODO: Maybe there's a better way to report this.
+
+      {
+        recordCommitTime();
+      }
+    }
+
+    var rootDidHavePassiveEffects = rootDoesHavePassiveEffects;
+
+    if (rootDoesHavePassiveEffects) {
+      // This commit has passive effects. Stash a reference to them. But don't
+      // schedule a callback until after flushing layout work.
+      rootDoesHavePassiveEffects = false;
+      rootWithPendingPassiveEffects = root;
+      pendingPassiveEffectsLanes = lanes;
+      pendingPassiveEffectsRenderPriority = renderPriorityLevel;
+    } else {
+      // We are done with the effect chain at this point so let's clear the
+      // nextEffect pointers to assist with GC. If we have passive effects, we'll
+      // clear this in flushPassiveEffects.
+      nextEffect = firstEffect;
+
+      while (nextEffect !== null) {
+        var nextNextEffect = nextEffect.nextEffect;
+        nextEffect.nextEffect = null;
+
+        if (nextEffect.flags & Deletion) {
+          detachFiberAfterEffects(nextEffect);
+        }
+
+        nextEffect = nextNextEffect;
+      }
+    } // Read this again, since an effect might have updated it
+
+
+    remainingLanes = root.pendingLanes; // Check if there's remaining work on this root
+
+    if (remainingLanes !== NoLanes) {
+      {
+        if (spawnedWorkDuringRender !== null) {
+          var expirationTimes = spawnedWorkDuringRender;
+          spawnedWorkDuringRender = null;
+
+          for (var i = 0; i < expirationTimes.length; i++) {
+            scheduleInteractions(root, expirationTimes[i], root.memoizedInteractions);
+          }
+        }
+
+        schedulePendingInteractions(root, remainingLanes);
+      }
+    } else {
+      // If there's no remaining work, we can clear the set of already failed
+      // error boundaries.
+      legacyErrorBoundariesThatAlreadyFailed = null;
+    }
+
+    {
+      if (!rootDidHavePassiveEffects) {
+        // If there are no passive effects, then we can complete the pending interactions.
+        // Otherwise, we'll wait until after the passive effects are flushed.
+        // Wait to do this until after remaining work has been scheduled,
+        // so that we don't prematurely signal complete for interactions when there's e.g. hidden work.
+        finishPendingInteractions(root, lanes);
+      }
+    }
+
+    if (remainingLanes === SyncLane) {
+      // Count the number of times the root synchronously re-renders without
+      // finishing. If there are too many, it indicates an infinite update loop.
+      if (root === rootWithNestedUpdates) {
+        nestedUpdateCount++;
+      } else {
+        nestedUpdateCount = 0;
+        rootWithNestedUpdates = root;
+      }
+    } else {
+      nestedUpdateCount = 0;
+    }
+
+    onCommitRoot(finishedWork.stateNode, renderPriorityLevel);
+
+    {
+      onCommitRoot$1();
+    } // Always call this before exiting `commitRoot`, to ensure that any
+    // additional work on this root is scheduled.
+
+
+    ensureRootIsScheduled(root, now());
+
+    if (hasUncaughtError) {
+      hasUncaughtError = false;
+      var _error3 = firstUncaughtError;
+      firstUncaughtError = null;
+      throw _error3;
+    }
+
+    if ((executionContext & LegacyUnbatchedContext) !== NoContext) {
+      // a ReactDOM.render-ed root inside of batchedUpdates. The commit fired
+      // synchronously, but layout updates should be deferred until the end
+      // of the batch.
+
+
+      return null;
+    } // If layout work was scheduled, flush it now.
+
+
+    flushSyncCallbackQueue();
+
+    return null;
+  }
+
+  function commitBeforeMutationEffects() {
+    while (nextEffect !== null) {
+      var current = nextEffect.alternate;
+
+      if (!shouldFireAfterActiveInstanceBlur && focusedInstanceHandle !== null) {
+        if ((nextEffect.flags & Deletion) !== NoFlags) {
+          if (doesFiberContain(nextEffect, focusedInstanceHandle)) {
+            shouldFireAfterActiveInstanceBlur = true;
+          }
+        } else {
+          // TODO: Move this out of the hot path using a dedicated effect tag.
+          if (nextEffect.tag === SuspenseComponent && isSuspenseBoundaryBeingHidden(current, nextEffect) && doesFiberContain(nextEffect, focusedInstanceHandle)) {
+            shouldFireAfterActiveInstanceBlur = true;
+          }
+        }
+      }
+
+      var flags = nextEffect.flags;
+
+      if ((flags & Snapshot) !== NoFlags) {
+        setCurrentFiber(nextEffect);
+        commitBeforeMutationLifeCycles(current, nextEffect);
+        resetCurrentFiber();
+      }
+
+      if ((flags & Passive) !== NoFlags) {
+        // If there are passive effects, schedule a callback to flush at
+        // the earliest opportunity.
+        if (!rootDoesHavePassiveEffects) {
+          rootDoesHavePassiveEffects = true;
+          scheduleCallback(NormalPriority$1, function () {
+            flushPassiveEffects();
+            return null;
+          });
+        }
+      }
+
+      nextEffect = nextEffect.nextEffect;
+    }
+  }
+
+  function commitMutationEffects(root, renderPriorityLevel) {
+    // TODO: Should probably move the bulk of this function to commitWork.
+    while (nextEffect !== null) {
+      setCurrentFiber(nextEffect);
+      var flags = nextEffect.flags;
+
+      if (flags & ContentReset) {
+        commitResetTextContent(nextEffect);
+      }
+
+      if (flags & Ref) {
+        var current = nextEffect.alternate;
+
+        if (current !== null) {
+          commitDetachRef(current);
+        }
+      } // The following switch statement is only concerned about placement,
+      // updates, and deletions. To avoid needing to add a case for every possible
+      // bitmap value, we remove the secondary effects from the effect tag and
+      // switch on that value.
+
+
+      var primaryFlags = flags & (Placement | Update | Deletion | Hydrating);
+
+      switch (primaryFlags) {
+        case Placement:
+          {
+            commitPlacement(nextEffect); // Clear the "placement" from effect tag so that we know that this is
+            // inserted, before any life-cycles like componentDidMount gets called.
+            // TODO: findDOMNode doesn't rely on this any more but isMounted does
+            // and isMounted is deprecated anyway so we should be able to kill this.
+
+            nextEffect.flags &= ~Placement;
+            break;
+          }
+
+        case PlacementAndUpdate:
+          {
+            // Placement
+            commitPlacement(nextEffect); // Clear the "placement" from effect tag so that we know that this is
+            // inserted, before any life-cycles like componentDidMount gets called.
+
+            nextEffect.flags &= ~Placement; // Update
+
+            var _current = nextEffect.alternate;
+            commitWork(_current, nextEffect);
+            break;
+          }
+
+        case Hydrating:
+          {
+            nextEffect.flags &= ~Hydrating;
+            break;
+          }
+
+        case HydratingAndUpdate:
+          {
+            nextEffect.flags &= ~Hydrating; // Update
+
+            var _current2 = nextEffect.alternate;
+            commitWork(_current2, nextEffect);
+            break;
+          }
+
+        case Update:
+          {
+            var _current3 = nextEffect.alternate;
+            commitWork(_current3, nextEffect);
+            break;
+          }
+
+        case Deletion:
+          {
+            commitDeletion(root, nextEffect);
+            break;
+          }
+      }
+
+      resetCurrentFiber();
+      nextEffect = nextEffect.nextEffect;
+    }
+  }
+
+  function commitLayoutEffects(root, committedLanes) {
+
+
+    while (nextEffect !== null) {
+      setCurrentFiber(nextEffect);
+      var flags = nextEffect.flags;
+
+      if (flags & (Update | Callback)) {
+        var current = nextEffect.alternate;
+        commitLifeCycles(root, current, nextEffect);
+      }
+
+      {
+        if (flags & Ref) {
+          commitAttachRef(nextEffect);
+        }
+      }
+
+      resetCurrentFiber();
+      nextEffect = nextEffect.nextEffect;
+    }
+  }
+
+  function flushPassiveEffects() {
+    // Returns whether passive effects were flushed.
+    if (pendingPassiveEffectsRenderPriority !== NoPriority$1) {
+      var priorityLevel = pendingPassiveEffectsRenderPriority > NormalPriority$1 ? NormalPriority$1 : pendingPassiveEffectsRenderPriority;
+      pendingPassiveEffectsRenderPriority = NoPriority$1;
+
+      {
+        return runWithPriority$1(priorityLevel, flushPassiveEffectsImpl);
+      }
+    }
+
+    return false;
+  }
+  function enqueuePendingPassiveHookEffectMount(fiber, effect) {
+    pendingPassiveHookEffectsMount.push(effect, fiber);
+
+    if (!rootDoesHavePassiveEffects) {
+      rootDoesHavePassiveEffects = true;
+      scheduleCallback(NormalPriority$1, function () {
+        flushPassiveEffects();
+        return null;
+      });
+    }
+  }
+  function enqueuePendingPassiveHookEffectUnmount(fiber, effect) {
+    pendingPassiveHookEffectsUnmount.push(effect, fiber);
+
+    {
+      fiber.flags |= PassiveUnmountPendingDev;
+      var alternate = fiber.alternate;
+
+      if (alternate !== null) {
+        alternate.flags |= PassiveUnmountPendingDev;
+      }
+    }
+
+    if (!rootDoesHavePassiveEffects) {
+      rootDoesHavePassiveEffects = true;
+      scheduleCallback(NormalPriority$1, function () {
+        flushPassiveEffects();
+        return null;
+      });
+    }
+  }
+
+  function invokePassiveEffectCreate(effect) {
+    var create = effect.create;
+    effect.destroy = create();
+  }
+
+  function flushPassiveEffectsImpl() {
+    if (rootWithPendingPassiveEffects === null) {
+      return false;
+    }
+
+    var root = rootWithPendingPassiveEffects;
+    var lanes = pendingPassiveEffectsLanes;
+    rootWithPendingPassiveEffects = null;
+    pendingPassiveEffectsLanes = NoLanes;
+
+    if (!((executionContext & (RenderContext | CommitContext)) === NoContext)) {
+      {
+        throw Error( "Cannot flush passive effects while already rendering." );
+      }
+    }
+
+    {
+      isFlushingPassiveEffects = true;
+    }
+
+    var prevExecutionContext = executionContext;
+    executionContext |= CommitContext;
+    var prevInteractions = pushInteractions(root); // It's important that ALL pending passive effect destroy functions are called
+    // before ANY passive effect create functions are called.
+    // Otherwise effects in sibling components might interfere with each other.
+    // e.g. a destroy function in one component may unintentionally override a ref
+    // value set by a create function in another component.
+    // Layout effects have the same constraint.
+    // First pass: Destroy stale passive effects.
+
+    var unmountEffects = pendingPassiveHookEffectsUnmount;
+    pendingPassiveHookEffectsUnmount = [];
+
+    for (var i = 0; i < unmountEffects.length; i += 2) {
+      var _effect = unmountEffects[i];
+      var fiber = unmountEffects[i + 1];
+      var destroy = _effect.destroy;
+      _effect.destroy = undefined;
+
+      {
+        fiber.flags &= ~PassiveUnmountPendingDev;
+        var alternate = fiber.alternate;
+
+        if (alternate !== null) {
+          alternate.flags &= ~PassiveUnmountPendingDev;
+        }
+      }
+
+      if (typeof destroy === 'function') {
+        {
+          setCurrentFiber(fiber);
+
+          {
+            invokeGuardedCallback(null, destroy, null);
+          }
+
+          if (hasCaughtError()) {
+            if (!(fiber !== null)) {
+              {
+                throw Error( "Should be working on an effect." );
+              }
+            }
+
+            var error = clearCaughtError();
+            captureCommitPhaseError(fiber, error);
+          }
+
+          resetCurrentFiber();
+        }
+      }
+    } // Second pass: Create new passive effects.
+
+
+    var mountEffects = pendingPassiveHookEffectsMount;
+    pendingPassiveHookEffectsMount = [];
+
+    for (var _i = 0; _i < mountEffects.length; _i += 2) {
+      var _effect2 = mountEffects[_i];
+      var _fiber = mountEffects[_i + 1];
+
+      {
+        setCurrentFiber(_fiber);
+
+        {
+          invokeGuardedCallback(null, invokePassiveEffectCreate, null, _effect2);
+        }
+
+        if (hasCaughtError()) {
+          if (!(_fiber !== null)) {
+            {
+              throw Error( "Should be working on an effect." );
+            }
+          }
+
+          var _error4 = clearCaughtError();
+
+          captureCommitPhaseError(_fiber, _error4);
+        }
+
+        resetCurrentFiber();
+      }
+    } // Note: This currently assumes there are no passive effects on the root fiber
+    // because the root is not part of its own effect list.
+    // This could change in the future.
+
+
+    var effect = root.current.firstEffect;
+
+    while (effect !== null) {
+      var nextNextEffect = effect.nextEffect; // Remove nextEffect pointer to assist GC
+
+      effect.nextEffect = null;
+
+      if (effect.flags & Deletion) {
+        detachFiberAfterEffects(effect);
+      }
+
+      effect = nextNextEffect;
+    }
+
+    {
+      popInteractions(prevInteractions);
+      finishPendingInteractions(root, lanes);
+    }
+
+    {
+      isFlushingPassiveEffects = false;
+    }
+
+    executionContext = prevExecutionContext;
+    flushSyncCallbackQueue(); // If additional passive effects were scheduled, increment a counter. If this
+    // exceeds the limit, we'll fire a warning.
+
+    nestedPassiveUpdateCount = rootWithPendingPassiveEffects === null ? 0 : nestedPassiveUpdateCount + 1;
+    return true;
+  }
+
+  function isAlreadyFailedLegacyErrorBoundary(instance) {
+    return legacyErrorBoundariesThatAlreadyFailed !== null && legacyErrorBoundariesThatAlreadyFailed.has(instance);
+  }
+  function markLegacyErrorBoundaryAsFailed(instance) {
+    if (legacyErrorBoundariesThatAlreadyFailed === null) {
+      legacyErrorBoundariesThatAlreadyFailed = new Set([instance]);
+    } else {
+      legacyErrorBoundariesThatAlreadyFailed.add(instance);
+    }
+  }
+
+  function prepareToThrowUncaughtError(error) {
+    if (!hasUncaughtError) {
+      hasUncaughtError = true;
+      firstUncaughtError = error;
+    }
+  }
+
+  var onUncaughtError = prepareToThrowUncaughtError;
+
+  function captureCommitPhaseErrorOnRoot(rootFiber, sourceFiber, error) {
+    var errorInfo = createCapturedValue(error, sourceFiber);
+    var update = createRootErrorUpdate(rootFiber, errorInfo, SyncLane);
+    enqueueUpdate(rootFiber, update);
+    var eventTime = requestEventTime();
+    var root = markUpdateLaneFromFiberToRoot(rootFiber, SyncLane);
+
+    if (root !== null) {
+      markRootUpdated(root, SyncLane, eventTime);
+      ensureRootIsScheduled(root, eventTime);
+      schedulePendingInteractions(root, SyncLane);
+    }
+  }
+
+  function captureCommitPhaseError(sourceFiber, error) {
+    if (sourceFiber.tag === HostRoot) {
+      // Error was thrown at the root. There is no parent, so the root
+      // itself should capture it.
+      captureCommitPhaseErrorOnRoot(sourceFiber, sourceFiber, error);
+      return;
+    }
+
+    var fiber = sourceFiber.return;
+
+    while (fiber !== null) {
+      if (fiber.tag === HostRoot) {
+        captureCommitPhaseErrorOnRoot(fiber, sourceFiber, error);
+        return;
+      } else if (fiber.tag === ClassComponent) {
+        var ctor = fiber.type;
+        var instance = fiber.stateNode;
+
+        if (typeof ctor.getDerivedStateFromError === 'function' || typeof instance.componentDidCatch === 'function' && !isAlreadyFailedLegacyErrorBoundary(instance)) {
+          var errorInfo = createCapturedValue(error, sourceFiber);
+          var update = createClassErrorUpdate(fiber, errorInfo, SyncLane);
+          enqueueUpdate(fiber, update);
+          var eventTime = requestEventTime();
+          var root = markUpdateLaneFromFiberToRoot(fiber, SyncLane);
+
+          if (root !== null) {
+            markRootUpdated(root, SyncLane, eventTime);
+            ensureRootIsScheduled(root, eventTime);
+            schedulePendingInteractions(root, SyncLane);
+          } else {
+            // This component has already been unmounted.
+            // We can't schedule any follow up work for the root because the fiber is already unmounted,
+            // but we can still call the log-only boundary so the error isn't swallowed.
+            //
+            // TODO This is only a temporary bandaid for the old reconciler fork.
+            // We can delete this special case once the new fork is merged.
+            if (typeof instance.componentDidCatch === 'function' && !isAlreadyFailedLegacyErrorBoundary(instance)) {
+              try {
+                instance.componentDidCatch(error, errorInfo);
+              } catch (errorToIgnore) {// TODO Ignore this error? Rethrow it?
+                // This is kind of an edge case.
+              }
+            }
+          }
+
+          return;
+        }
+      }
+
+      fiber = fiber.return;
+    }
+  }
+  function pingSuspendedRoot(root, wakeable, pingedLanes) {
+    var pingCache = root.pingCache;
+
+    if (pingCache !== null) {
+      // The wakeable resolved, so we no longer need to memoize, because it will
+      // never be thrown again.
+      pingCache.delete(wakeable);
+    }
+
+    var eventTime = requestEventTime();
+    markRootPinged(root, pingedLanes);
+
+    if (workInProgressRoot === root && isSubsetOfLanes(workInProgressRootRenderLanes, pingedLanes)) {
+      // Received a ping at the same priority level at which we're currently
+      // rendering. We might want to restart this render. This should mirror
+      // the logic of whether or not a root suspends once it completes.
+      // TODO: If we're rendering sync either due to Sync, Batched or expired,
+      // we should probably never restart.
+      // If we're suspended with delay, or if it's a retry, we'll always suspend
+      // so we can always restart.
+      if (workInProgressRootExitStatus === RootSuspendedWithDelay || workInProgressRootExitStatus === RootSuspended && includesOnlyRetries(workInProgressRootRenderLanes) && now() - globalMostRecentFallbackTime < FALLBACK_THROTTLE_MS) {
+        // Restart from the root.
+        prepareFreshStack(root, NoLanes);
+      } else {
+        // Even though we can't restart right now, we might get an
+        // opportunity later. So we mark this render as having a ping.
+        workInProgressRootPingedLanes = mergeLanes(workInProgressRootPingedLanes, pingedLanes);
+      }
+    }
+
+    ensureRootIsScheduled(root, eventTime);
+    schedulePendingInteractions(root, pingedLanes);
+  }
+
+  function retryTimedOutBoundary(boundaryFiber, retryLane) {
+    // The boundary fiber (a Suspense component or SuspenseList component)
+    // previously was rendered in its fallback state. One of the promises that
+    // suspended it has resolved, which means at least part of the tree was
+    // likely unblocked. Try rendering again, at a new expiration time.
+    if (retryLane === NoLane) {
+      retryLane = requestRetryLane(boundaryFiber);
+    } // TODO: Special case idle priority?
+
+
+    var eventTime = requestEventTime();
+    var root = markUpdateLaneFromFiberToRoot(boundaryFiber, retryLane);
+
+    if (root !== null) {
+      markRootUpdated(root, retryLane, eventTime);
+      ensureRootIsScheduled(root, eventTime);
+      schedulePendingInteractions(root, retryLane);
+    }
+  }
+  function resolveRetryWakeable(boundaryFiber, wakeable) {
+    var retryLane = NoLane; // Default
+
+    var retryCache;
+
+    {
+      retryCache = boundaryFiber.stateNode;
+    }
+
+    if (retryCache !== null) {
+      // The wakeable resolved, so we no longer need to memoize, because it will
+      // never be thrown again.
+      retryCache.delete(wakeable);
+    }
+
+    retryTimedOutBoundary(boundaryFiber, retryLane);
+  } // Computes the next Just Noticeable Difference (JND) boundary.
+  // The theory is that a person can't tell the difference between small differences in time.
+  // Therefore, if we wait a bit longer than necessary that won't translate to a noticeable
+  // difference in the experience. However, waiting for longer might mean that we can avoid
+  // showing an intermediate loading state. The longer we have already waited, the harder it
+  // is to tell small differences in time. Therefore, the longer we've already waited,
+  // the longer we can wait additionally. At some point we have to give up though.
+  // We pick a train model where the next boundary commits at a consistent schedule.
+  // These particular numbers are vague estimates. We expect to adjust them based on research.
+
+  function jnd(timeElapsed) {
+    return timeElapsed < 120 ? 120 : timeElapsed < 480 ? 480 : timeElapsed < 1080 ? 1080 : timeElapsed < 1920 ? 1920 : timeElapsed < 3000 ? 3000 : timeElapsed < 4320 ? 4320 : ceil(timeElapsed / 1960) * 1960;
+  }
+
+  function checkForNestedUpdates() {
+    if (nestedUpdateCount > NESTED_UPDATE_LIMIT) {
+      nestedUpdateCount = 0;
+      rootWithNestedUpdates = null;
+
+      {
+        {
+          throw Error( "Maximum update depth exceeded. This can happen when a component repeatedly calls setState inside componentWillUpdate or componentDidUpdate. React limits the number of nested updates to prevent infinite loops." );
+        }
+      }
+    }
+
+    {
+      if (nestedPassiveUpdateCount > NESTED_PASSIVE_UPDATE_LIMIT) {
+        nestedPassiveUpdateCount = 0;
+
+        error('Maximum update depth exceeded. This can happen when a component ' + "calls setState inside useEffect, but useEffect either doesn't " + 'have a dependency array, or one of the dependencies changes on ' + 'every render.');
+      }
+    }
+  }
+
+  function flushRenderPhaseStrictModeWarningsInDEV() {
+    {
+      ReactStrictModeWarnings.flushLegacyContextWarning();
+
+      {
+        ReactStrictModeWarnings.flushPendingUnsafeLifecycleWarnings();
+      }
+    }
+  }
+
+  var didWarnStateUpdateForNotYetMountedComponent = null;
+
+  function warnAboutUpdateOnNotYetMountedFiberInDEV(fiber) {
+    {
+      if ((executionContext & RenderContext) !== NoContext) {
+        // We let the other warning about render phase updates deal with this one.
+        return;
+      }
+
+      if (!(fiber.mode & (BlockingMode | ConcurrentMode))) {
+        return;
+      }
+
+      var tag = fiber.tag;
+
+      if (tag !== IndeterminateComponent && tag !== HostRoot && tag !== ClassComponent && tag !== FunctionComponent && tag !== ForwardRef && tag !== MemoComponent && tag !== SimpleMemoComponent && tag !== Block) {
+        // Only warn for user-defined components, not internal ones like Suspense.
+        return;
+      } // We show the whole stack but dedupe on the top component's name because
+      // the problematic code almost always lies inside that component.
+
+
+      var componentName = getComponentName(fiber.type) || 'ReactComponent';
+
+      if (didWarnStateUpdateForNotYetMountedComponent !== null) {
+        if (didWarnStateUpdateForNotYetMountedComponent.has(componentName)) {
+          return;
+        }
+
+        didWarnStateUpdateForNotYetMountedComponent.add(componentName);
+      } else {
+        didWarnStateUpdateForNotYetMountedComponent = new Set([componentName]);
+      }
+
+      var previousFiber = current;
+
+      try {
+        setCurrentFiber(fiber);
+
+        error("Can't perform a React state update on a component that hasn't mounted yet. " + 'This indicates that you have a side-effect in your render function that ' + 'asynchronously later calls tries to update the component. Move this work to ' + 'useEffect instead.');
+      } finally {
+        if (previousFiber) {
+          setCurrentFiber(fiber);
+        } else {
+          resetCurrentFiber();
+        }
+      }
+    }
+  }
+
+  var didWarnStateUpdateForUnmountedComponent = null;
+
+  function warnAboutUpdateOnUnmountedFiberInDEV(fiber) {
+    {
+      var tag = fiber.tag;
+
+      if (tag !== HostRoot && tag !== ClassComponent && tag !== FunctionComponent && tag !== ForwardRef && tag !== MemoComponent && tag !== SimpleMemoComponent && tag !== Block) {
+        // Only warn for user-defined components, not internal ones like Suspense.
+        return;
+      } // If there are pending passive effects unmounts for this Fiber,
+      // we can assume that they would have prevented this update.
+
+
+      if ((fiber.flags & PassiveUnmountPendingDev) !== NoFlags) {
+        return;
+      } // We show the whole stack but dedupe on the top component's name because
+      // the problematic code almost always lies inside that component.
+
+
+      var componentName = getComponentName(fiber.type) || 'ReactComponent';
+
+      if (didWarnStateUpdateForUnmountedComponent !== null) {
+        if (didWarnStateUpdateForUnmountedComponent.has(componentName)) {
+          return;
+        }
+
+        didWarnStateUpdateForUnmountedComponent.add(componentName);
+      } else {
+        didWarnStateUpdateForUnmountedComponent = new Set([componentName]);
+      }
+
+      if (isFlushingPassiveEffects) ; else {
+        var previousFiber = current;
+
+        try {
+          setCurrentFiber(fiber);
+
+          error("Can't perform a React state update on an unmounted component. This " + 'is a no-op, but it indicates a memory leak in your application. To ' + 'fix, cancel all subscriptions and asynchronous tasks in %s.', tag === ClassComponent ? 'the componentWillUnmount method' : 'a useEffect cleanup function');
+        } finally {
+          if (previousFiber) {
+            setCurrentFiber(fiber);
+          } else {
+            resetCurrentFiber();
+          }
+        }
+      }
+    }
+  }
+
+  var beginWork$1;
+
+  {
+    var dummyFiber = null;
+
+    beginWork$1 = function (current, unitOfWork, lanes) {
+      // If a component throws an error, we replay it again in a synchronously
+      // dispatched event, so that the debugger will treat it as an uncaught
+      // error See ReactErrorUtils for more information.
+      // Before entering the begin phase, copy the work-in-progress onto a dummy
+      // fiber. If beginWork throws, we'll use this to reset the state.
+      var originalWorkInProgressCopy = assignFiberPropertiesInDEV(dummyFiber, unitOfWork);
+
+      try {
+        return beginWork(current, unitOfWork, lanes);
+      } catch (originalError) {
+        if (originalError !== null && typeof originalError === 'object' && typeof originalError.then === 'function') {
+          // Don't replay promises. Treat everything else like an error.
+          throw originalError;
+        } // Keep this code in sync with handleError; any changes here must have
+        // corresponding changes there.
+
+
+        resetContextDependencies();
+        resetHooksAfterThrow(); // Don't reset current debug fiber, since we're about to work on the
+        // same fiber again.
+        // Unwind the failed stack frame
+
+        unwindInterruptedWork(unitOfWork); // Restore the original properties of the fiber.
+
+        assignFiberPropertiesInDEV(unitOfWork, originalWorkInProgressCopy);
+
+        if ( unitOfWork.mode & ProfileMode) {
+          // Reset the profiler timer.
+          startProfilerTimer(unitOfWork);
+        } // Run beginWork again.
+
+
+        invokeGuardedCallback(null, beginWork, null, current, unitOfWork, lanes);
+
+        if (hasCaughtError()) {
+          var replayError = clearCaughtError(); // `invokeGuardedCallback` sometimes sets an expando `_suppressLogging`.
+          // Rethrow this error instead of the original one.
+
+          throw replayError;
+        } else {
+          // This branch is reachable if the render phase is impure.
+          throw originalError;
+        }
+      }
+    };
+  }
+
+  var didWarnAboutUpdateInRender = false;
+  var didWarnAboutUpdateInRenderForAnotherComponent;
+
+  {
+    didWarnAboutUpdateInRenderForAnotherComponent = new Set();
+  }
+
+  function warnAboutRenderPhaseUpdatesInDEV(fiber) {
+    {
+      if (isRendering && (executionContext & RenderContext) !== NoContext && !getIsUpdatingOpaqueValueInRenderPhaseInDEV()) {
+        switch (fiber.tag) {
+          case FunctionComponent:
+          case ForwardRef:
+          case SimpleMemoComponent:
+            {
+              var renderingComponentName = workInProgress && getComponentName(workInProgress.type) || 'Unknown'; // Dedupe by the rendering component because it's the one that needs to be fixed.
+
+              var dedupeKey = renderingComponentName;
+
+              if (!didWarnAboutUpdateInRenderForAnotherComponent.has(dedupeKey)) {
+                didWarnAboutUpdateInRenderForAnotherComponent.add(dedupeKey);
+                var setStateComponentName = getComponentName(fiber.type) || 'Unknown';
+
+                error('Cannot update a component (`%s`) while rendering a ' + 'different component (`%s`). To locate the bad setState() call inside `%s`, ' + 'follow the stack trace as described in https://reactjs.org/link/setstate-in-render', setStateComponentName, renderingComponentName, renderingComponentName);
+              }
+
+              break;
+            }
+
+          case ClassComponent:
+            {
+              if (!didWarnAboutUpdateInRender) {
+                error('Cannot update during an existing state transition (such as ' + 'within `render`). Render methods should be a pure ' + 'function of props and state.');
+
+                didWarnAboutUpdateInRender = true;
+              }
+
+              break;
+            }
+        }
+      }
+    }
+  } // a 'shared' variable that changes when act() opens/closes in tests.
+
+
+  var IsThisRendererActing = {
+    current: false
+  };
+  function warnIfNotScopedWithMatchingAct(fiber) {
+    {
+      if ( IsSomeRendererActing.current === true && IsThisRendererActing.current !== true) {
+        var previousFiber = current;
+
+        try {
+          setCurrentFiber(fiber);
+
+          error("It looks like you're using the wrong act() around your test interactions.\n" + 'Be sure to use the matching version of act() corresponding to your renderer:\n\n' + '// for react-dom:\n' + // Break up imports to avoid accidentally parsing them as dependencies.
+          'import {act} fr' + "om 'react-dom/test-utils';\n" + '// ...\n' + 'act(() => ...);\n\n' + '// for react-test-renderer:\n' + // Break up imports to avoid accidentally parsing them as dependencies.
+          'import TestRenderer fr' + "om react-test-renderer';\n" + 'const {act} = TestRenderer;\n' + '// ...\n' + 'act(() => ...);');
+        } finally {
+          if (previousFiber) {
+            setCurrentFiber(fiber);
+          } else {
+            resetCurrentFiber();
+          }
+        }
+      }
+    }
+  }
+  function warnIfNotCurrentlyActingEffectsInDEV(fiber) {
+    {
+      if ( (fiber.mode & StrictMode) !== NoMode && IsSomeRendererActing.current === false && IsThisRendererActing.current === false) {
+        error('An update to %s ran an effect, but was not wrapped in act(...).\n\n' + 'When testing, code that causes React state updates should be ' + 'wrapped into act(...):\n\n' + 'act(() => {\n' + '  /* fire events that update state */\n' + '});\n' + '/* assert on the output */\n\n' + "This ensures that you're testing the behavior the user would see " + 'in the browser.' + ' Learn more at https://reactjs.org/link/wrap-tests-with-act', getComponentName(fiber.type));
+      }
+    }
+  }
+
+  function warnIfNotCurrentlyActingUpdatesInDEV(fiber) {
+    {
+      if ( executionContext === NoContext && IsSomeRendererActing.current === false && IsThisRendererActing.current === false) {
+        var previousFiber = current;
+
+        try {
+          setCurrentFiber(fiber);
+
+          error('An update to %s inside a test was not wrapped in act(...).\n\n' + 'When testing, code that causes React state updates should be ' + 'wrapped into act(...):\n\n' + 'act(() => {\n' + '  /* fire events that update state */\n' + '});\n' + '/* assert on the output */\n\n' + "This ensures that you're testing the behavior the user would see " + 'in the browser.' + ' Learn more at https://reactjs.org/link/wrap-tests-with-act', getComponentName(fiber.type));
+        } finally {
+          if (previousFiber) {
+            setCurrentFiber(fiber);
+          } else {
+            resetCurrentFiber();
+          }
+        }
+      }
+    }
+  }
+
+  var warnIfNotCurrentlyActingUpdatesInDev = warnIfNotCurrentlyActingUpdatesInDEV; // In tests, we want to enforce a mocked scheduler.
+
+  var didWarnAboutUnmockedScheduler = false; // TODO Before we release concurrent mode, revisit this and decide whether a mocked
+  // scheduler is the actual recommendation. The alternative could be a testing build,
+  // a new lib, or whatever; we dunno just yet. This message is for early adopters
+  // to get their tests right.
+
+  function warnIfUnmockedScheduler(fiber) {
+    {
+      if (didWarnAboutUnmockedScheduler === false && unstable_flushAllWithoutAsserting === undefined) {
+        if (fiber.mode & BlockingMode || fiber.mode & ConcurrentMode) {
+          didWarnAboutUnmockedScheduler = true;
+
+          error('In Concurrent or Sync modes, the "scheduler" module needs to be mocked ' + 'to guarantee consistent behaviour across tests and browsers. ' + 'For example, with jest: \n' + // Break up requires to avoid accidentally parsing them as dependencies.
+          "jest.mock('scheduler', () => require" + "('scheduler/unstable_mock'));\n\n" + 'For more info, visit https://reactjs.org/link/mock-scheduler');
+        }
+      }
+    }
+  }
+
+  function computeThreadID(root, lane) {
+    // Interaction threads are unique per root and expiration time.
+    // NOTE: Intentionally unsound cast. All that matters is that it's a number
+    // and it represents a batch of work. Could make a helper function instead,
+    // but meh this is fine for now.
+    return lane * 1000 + root.interactionThreadID;
+  }
+
+  function markSpawnedWork(lane) {
+
+    if (spawnedWorkDuringRender === null) {
+      spawnedWorkDuringRender = [lane];
+    } else {
+      spawnedWorkDuringRender.push(lane);
+    }
+  }
+
+  function scheduleInteractions(root, lane, interactions) {
+
+    if (interactions.size > 0) {
+      var pendingInteractionMap = root.pendingInteractionMap;
+      var pendingInteractions = pendingInteractionMap.get(lane);
+
+      if (pendingInteractions != null) {
+        interactions.forEach(function (interaction) {
+          if (!pendingInteractions.has(interaction)) {
+            // Update the pending async work count for previously unscheduled interaction.
+            interaction.__count++;
+          }
+
+          pendingInteractions.add(interaction);
+        });
+      } else {
+        pendingInteractionMap.set(lane, new Set(interactions)); // Update the pending async work count for the current interactions.
+
+        interactions.forEach(function (interaction) {
+          interaction.__count++;
+        });
+      }
+
+      var subscriber = __subscriberRef.current;
+
+      if (subscriber !== null) {
+        var threadID = computeThreadID(root, lane);
+        subscriber.onWorkScheduled(interactions, threadID);
+      }
+    }
+  }
+
+  function schedulePendingInteractions(root, lane) {
+
+    scheduleInteractions(root, lane, __interactionsRef.current);
+  }
+
+  function startWorkOnPendingInteractions(root, lanes) {
+    // we can accurately attribute time spent working on it, And so that cascading
+    // work triggered during the render phase will be associated with it.
+
+
+    var interactions = new Set();
+    root.pendingInteractionMap.forEach(function (scheduledInteractions, scheduledLane) {
+      if (includesSomeLane(lanes, scheduledLane)) {
+        scheduledInteractions.forEach(function (interaction) {
+          return interactions.add(interaction);
+        });
+      }
+    }); // Store the current set of interactions on the FiberRoot for a few reasons:
+    // We can re-use it in hot functions like performConcurrentWorkOnRoot()
+    // without having to recalculate it. We will also use it in commitWork() to
+    // pass to any Profiler onRender() hooks. This also provides DevTools with a
+    // way to access it when the onCommitRoot() hook is called.
+
+    root.memoizedInteractions = interactions;
+
+    if (interactions.size > 0) {
+      var subscriber = __subscriberRef.current;
+
+      if (subscriber !== null) {
+        var threadID = computeThreadID(root, lanes);
+
+        try {
+          subscriber.onWorkStarted(interactions, threadID);
+        } catch (error) {
+          // If the subscriber throws, rethrow it in a separate task
+          scheduleCallback(ImmediatePriority$1, function () {
+            throw error;
+          });
+        }
+      }
+    }
+  }
+
+  function finishPendingInteractions(root, committedLanes) {
+
+    var remainingLanesAfterCommit = root.pendingLanes;
+    var subscriber;
+
+    try {
+      subscriber = __subscriberRef.current;
+
+      if (subscriber !== null && root.memoizedInteractions.size > 0) {
+        // FIXME: More than one lane can finish in a single commit.
+        var threadID = computeThreadID(root, committedLanes);
+        subscriber.onWorkStopped(root.memoizedInteractions, threadID);
+      }
+    } catch (error) {
+      // If the subscriber throws, rethrow it in a separate task
+      scheduleCallback(ImmediatePriority$1, function () {
+        throw error;
+      });
+    } finally {
+      // Clear completed interactions from the pending Map.
+      // Unless the render was suspended or cascading work was scheduled,
+      // In which case– leave pending interactions until the subsequent render.
+      var pendingInteractionMap = root.pendingInteractionMap;
+      pendingInteractionMap.forEach(function (scheduledInteractions, lane) {
+        // Only decrement the pending interaction count if we're done.
+        // If there's still work at the current priority,
+        // That indicates that we are waiting for suspense data.
+        if (!includesSomeLane(remainingLanesAfterCommit, lane)) {
+          pendingInteractionMap.delete(lane);
+          scheduledInteractions.forEach(function (interaction) {
+            interaction.__count--;
+
+            if (subscriber !== null && interaction.__count === 0) {
+              try {
+                subscriber.onInteractionScheduledWorkCompleted(interaction);
+              } catch (error) {
+                // If the subscriber throws, rethrow it in a separate task
+                scheduleCallback(ImmediatePriority$1, function () {
+                  throw error;
+                });
+              }
+            }
+          });
+        }
+      });
+    }
+  } // `act` testing API
+
+  function shouldForceFlushFallbacksInDEV() {
+    // Never force flush in production. This function should get stripped out.
+    return  actingUpdatesScopeDepth > 0;
+  }
+  // so we can tell if any async act() calls try to run in parallel.
+
+
+  var actingUpdatesScopeDepth = 0;
+
+  function detachFiberAfterEffects(fiber) {
+    fiber.sibling = null;
+    fiber.stateNode = null;
+  }
+
+  var resolveFamily = null; // $FlowFixMe Flow gets confused by a WeakSet feature check below.
+
+  var failedBoundaries = null;
+  var setRefreshHandler = function (handler) {
+    {
+      resolveFamily = handler;
+    }
+  };
+  function resolveFunctionForHotReloading(type) {
+    {
+      if (resolveFamily === null) {
+        // Hot reloading is disabled.
+        return type;
+      }
+
+      var family = resolveFamily(type);
+
+      if (family === undefined) {
+        return type;
+      } // Use the latest known implementation.
+
+
+      return family.current;
+    }
+  }
+  function resolveClassForHotReloading(type) {
+    // No implementation differences.
+    return resolveFunctionForHotReloading(type);
+  }
+  function resolveForwardRefForHotReloading(type) {
+    {
+      if (resolveFamily === null) {
+        // Hot reloading is disabled.
+        return type;
+      }
+
+      var family = resolveFamily(type);
+
+      if (family === undefined) {
+        // Check if we're dealing with a real forwardRef. Don't want to crash early.
+        if (type !== null && type !== undefined && typeof type.render === 'function') {
+          // ForwardRef is special because its resolved .type is an object,
+          // but it's possible that we only have its inner render function in the map.
+          // If that inner render function is different, we'll build a new forwardRef type.
+          var currentRender = resolveFunctionForHotReloading(type.render);
+
+          if (type.render !== currentRender) {
+            var syntheticType = {
+              $$typeof: REACT_FORWARD_REF_TYPE,
+              render: currentRender
+            };
+
+            if (type.displayName !== undefined) {
+              syntheticType.displayName = type.displayName;
+            }
+
+            return syntheticType;
+          }
+        }
+
+        return type;
+      } // Use the latest known implementation.
+
+
+      return family.current;
+    }
+  }
+  function isCompatibleFamilyForHotReloading(fiber, element) {
+    {
+      if (resolveFamily === null) {
+        // Hot reloading is disabled.
+        return false;
+      }
+
+      var prevType = fiber.elementType;
+      var nextType = element.type; // If we got here, we know types aren't === equal.
+
+      var needsCompareFamilies = false;
+      var $$typeofNextType = typeof nextType === 'object' && nextType !== null ? nextType.$$typeof : null;
+
+      switch (fiber.tag) {
+        case ClassComponent:
+          {
+            if (typeof nextType === 'function') {
+              needsCompareFamilies = true;
+            }
+
+            break;
+          }
+
+        case FunctionComponent:
+          {
+            if (typeof nextType === 'function') {
+              needsCompareFamilies = true;
+            } else if ($$typeofNextType === REACT_LAZY_TYPE) {
+              // We don't know the inner type yet.
+              // We're going to assume that the lazy inner type is stable,
+              // and so it is sufficient to avoid reconciling it away.
+              // We're not going to unwrap or actually use the new lazy type.
+              needsCompareFamilies = true;
+            }
+
+            break;
+          }
+
+        case ForwardRef:
+          {
+            if ($$typeofNextType === REACT_FORWARD_REF_TYPE) {
+              needsCompareFamilies = true;
+            } else if ($$typeofNextType === REACT_LAZY_TYPE) {
+              needsCompareFamilies = true;
+            }
+
+            break;
+          }
+
+        case MemoComponent:
+        case SimpleMemoComponent:
+          {
+            if ($$typeofNextType === REACT_MEMO_TYPE) {
+              // TODO: if it was but can no longer be simple,
+              // we shouldn't set this.
+              needsCompareFamilies = true;
+            } else if ($$typeofNextType === REACT_LAZY_TYPE) {
+              needsCompareFamilies = true;
+            }
+
+            break;
+          }
+
+        default:
+          return false;
+      } // Check if both types have a family and it's the same one.
+
+
+      if (needsCompareFamilies) {
+        // Note: memo() and forwardRef() we'll compare outer rather than inner type.
+        // This means both of them need to be registered to preserve state.
+        // If we unwrapped and compared the inner types for wrappers instead,
+        // then we would risk falsely saying two separate memo(Foo)
+        // calls are equivalent because they wrap the same Foo function.
+        var prevFamily = resolveFamily(prevType);
+
+        if (prevFamily !== undefined && prevFamily === resolveFamily(nextType)) {
+          return true;
+        }
+      }
+
+      return false;
+    }
+  }
+  function markFailedErrorBoundaryForHotReloading(fiber) {
+    {
+      if (resolveFamily === null) {
+        // Hot reloading is disabled.
+        return;
+      }
+
+      if (typeof WeakSet !== 'function') {
+        return;
+      }
+
+      if (failedBoundaries === null) {
+        failedBoundaries = new WeakSet();
+      }
+
+      failedBoundaries.add(fiber);
+    }
+  }
+  var scheduleRefresh = function (root, update) {
+    {
+      if (resolveFamily === null) {
+        // Hot reloading is disabled.
+        return;
+      }
+
+      var staleFamilies = update.staleFamilies,
+          updatedFamilies = update.updatedFamilies;
+      flushPassiveEffects();
+      flushSync(function () {
+        scheduleFibersWithFamiliesRecursively(root.current, updatedFamilies, staleFamilies);
+      });
+    }
+  };
+  var scheduleRoot = function (root, element) {
+    {
+      if (root.context !== emptyContextObject) {
+        // Super edge case: root has a legacy _renderSubtree context
+        // but we don't know the parentComponent so we can't pass it.
+        // Just ignore. We'll delete this with _renderSubtree code path later.
+        return;
+      }
+
+      flushPassiveEffects();
+      flushSync(function () {
+        updateContainer(element, root, null, null);
+      });
+    }
+  };
+
+  function scheduleFibersWithFamiliesRecursively(fiber, updatedFamilies, staleFamilies) {
+    {
+      var alternate = fiber.alternate,
+          child = fiber.child,
+          sibling = fiber.sibling,
+          tag = fiber.tag,
+          type = fiber.type;
+      var candidateType = null;
+
+      switch (tag) {
+        case FunctionComponent:
+        case SimpleMemoComponent:
+        case ClassComponent:
+          candidateType = type;
+          break;
+
+        case ForwardRef:
+          candidateType = type.render;
+          break;
+      }
+
+      if (resolveFamily === null) {
+        throw new Error('Expected resolveFamily to be set during hot reload.');
+      }
+
+      var needsRender = false;
+      var needsRemount = false;
+
+      if (candidateType !== null) {
+        var family = resolveFamily(candidateType);
+
+        if (family !== undefined) {
+          if (staleFamilies.has(family)) {
+            needsRemount = true;
+          } else if (updatedFamilies.has(family)) {
+            if (tag === ClassComponent) {
+              needsRemount = true;
+            } else {
+              needsRender = true;
+            }
+          }
+        }
+      }
+
+      if (failedBoundaries !== null) {
+        if (failedBoundaries.has(fiber) || alternate !== null && failedBoundaries.has(alternate)) {
+          needsRemount = true;
+        }
+      }
+
+      if (needsRemount) {
+        fiber._debugNeedsRemount = true;
+      }
+
+      if (needsRemount || needsRender) {
+        scheduleUpdateOnFiber(fiber, SyncLane, NoTimestamp);
+      }
+
+      if (child !== null && !needsRemount) {
+        scheduleFibersWithFamiliesRecursively(child, updatedFamilies, staleFamilies);
+      }
+
+      if (sibling !== null) {
+        scheduleFibersWithFamiliesRecursively(sibling, updatedFamilies, staleFamilies);
+      }
+    }
+  }
+
+  var findHostInstancesForRefresh = function (root, families) {
+    {
+      var hostInstances = new Set();
+      var types = new Set(families.map(function (family) {
+        return family.current;
+      }));
+      findHostInstancesForMatchingFibersRecursively(root.current, types, hostInstances);
+      return hostInstances;
+    }
+  };
+
+  function findHostInstancesForMatchingFibersRecursively(fiber, types, hostInstances) {
+    {
+      var child = fiber.child,
+          sibling = fiber.sibling,
+          tag = fiber.tag,
+          type = fiber.type;
+      var candidateType = null;
+
+      switch (tag) {
+        case FunctionComponent:
+        case SimpleMemoComponent:
+        case ClassComponent:
+          candidateType = type;
+          break;
+
+        case ForwardRef:
+          candidateType = type.render;
+          break;
+      }
+
+      var didMatch = false;
+
+      if (candidateType !== null) {
+        if (types.has(candidateType)) {
+          didMatch = true;
+        }
+      }
+
+      if (didMatch) {
+        // We have a match. This only drills down to the closest host components.
+        // There's no need to search deeper because for the purpose of giving
+        // visual feedback, "flashing" outermost parent rectangles is sufficient.
+        findHostInstancesForFiberShallowly(fiber, hostInstances);
+      } else {
+        // If there's no match, maybe there will be one further down in the child tree.
+        if (child !== null) {
+          findHostInstancesForMatchingFibersRecursively(child, types, hostInstances);
+        }
+      }
+
+      if (sibling !== null) {
+        findHostInstancesForMatchingFibersRecursively(sibling, types, hostInstances);
+      }
+    }
+  }
+
+  function findHostInstancesForFiberShallowly(fiber, hostInstances) {
+    {
+      var foundHostInstances = findChildHostInstancesForFiberShallowly(fiber, hostInstances);
+
+      if (foundHostInstances) {
+        return;
+      } // If we didn't find any host children, fallback to closest host parent.
+
+
+      var node = fiber;
+
+      while (true) {
+        switch (node.tag) {
+          case HostComponent:
+            hostInstances.add(node.stateNode);
+            return;
+
+          case HostPortal:
+            hostInstances.add(node.stateNode.containerInfo);
+            return;
+
+          case HostRoot:
+            hostInstances.add(node.stateNode.containerInfo);
+            return;
+        }
+
+        if (node.return === null) {
+          throw new Error('Expected to reach root first.');
+        }
+
+        node = node.return;
+      }
+    }
+  }
+
+  function findChildHostInstancesForFiberShallowly(fiber, hostInstances) {
+    {
+      var node = fiber;
+      var foundHostInstances = false;
+
+      while (true) {
+        if (node.tag === HostComponent) {
+          // We got a match.
+          foundHostInstances = true;
+          hostInstances.add(node.stateNode); // There may still be more, so keep searching.
+        } else if (node.child !== null) {
+          node.child.return = node;
+          node = node.child;
+          continue;
+        }
+
+        if (node === fiber) {
+          return foundHostInstances;
+        }
+
+        while (node.sibling === null) {
+          if (node.return === null || node.return === fiber) {
+            return foundHostInstances;
+          }
+
+          node = node.return;
+        }
+
+        node.sibling.return = node.return;
+        node = node.sibling;
+      }
+    }
+
+    return false;
+  }
+
+  var hasBadMapPolyfill;
+
+  {
+    hasBadMapPolyfill = false;
+
+    try {
+      var nonExtensibleObject = Object.preventExtensions({});
+      /* eslint-disable no-new */
+
+      new Map([[nonExtensibleObject, null]]);
+      new Set([nonExtensibleObject]);
+      /* eslint-enable no-new */
+    } catch (e) {
+      // TODO: Consider warning about bad polyfills
+      hasBadMapPolyfill = true;
+    }
+  }
+
+  var debugCounter = 1;
+
+  function FiberNode(tag, pendingProps, key, mode) {
+    // Instance
+    this.tag = tag;
+    this.key = key;
+    this.elementType = null;
+    this.type = null;
+    this.stateNode = null; // Fiber
+
+    this.return = null;
+    this.child = null;
+    this.sibling = null;
+    this.index = 0;
+    this.ref = null;
+    this.pendingProps = pendingProps;
+    this.memoizedProps = null;
+    this.updateQueue = null;
+    this.memoizedState = null;
+    this.dependencies = null;
+    this.mode = mode; // Effects
+
+    this.flags = NoFlags;
+    this.nextEffect = null;
+    this.firstEffect = null;
+    this.lastEffect = null;
+    this.lanes = NoLanes;
+    this.childLanes = NoLanes;
+    this.alternate = null;
+
+    {
+      // Note: The following is done to avoid a v8 performance cliff.
+      //
+      // Initializing the fields below to smis and later updating them with
+      // double values will cause Fibers to end up having separate shapes.
+      // This behavior/bug has something to do with Object.preventExtension().
+      // Fortunately this only impacts DEV builds.
+      // Unfortunately it makes React unusably slow for some applications.
+      // To work around this, initialize the fields below with doubles.
+      //
+      // Learn more about this here:
+      // https://github.com/facebook/react/issues/14365
+      // https://bugs.chromium.org/p/v8/issues/detail?id=8538
+      this.actualDuration = Number.NaN;
+      this.actualStartTime = Number.NaN;
+      this.selfBaseDuration = Number.NaN;
+      this.treeBaseDuration = Number.NaN; // It's okay to replace the initial doubles with smis after initialization.
+      // This won't trigger the performance cliff mentioned above,
+      // and it simplifies other profiler code (including DevTools).
+
+      this.actualDuration = 0;
+      this.actualStartTime = -1;
+      this.selfBaseDuration = 0;
+      this.treeBaseDuration = 0;
+    }
+
+    {
+      // This isn't directly used but is handy for debugging internals:
+      this._debugID = debugCounter++;
+      this._debugSource = null;
+      this._debugOwner = null;
+      this._debugNeedsRemount = false;
+      this._debugHookTypes = null;
+
+      if (!hasBadMapPolyfill && typeof Object.preventExtensions === 'function') {
+        Object.preventExtensions(this);
+      }
+    }
+  } // This is a constructor function, rather than a POJO constructor, still
+  // please ensure we do the following:
+  // 1) Nobody should add any instance methods on this. Instance methods can be
+  //    more difficult to predict when they get optimized and they are almost
+  //    never inlined properly in static compilers.
+  // 2) Nobody should rely on `instanceof Fiber` for type testing. We should
+  //    always know when it is a fiber.
+  // 3) We might want to experiment with using numeric keys since they are easier
+  //    to optimize in a non-JIT environment.
+  // 4) We can easily go from a constructor to a createFiber object literal if that
+  //    is faster.
+  // 5) It should be easy to port this to a C struct and keep a C implementation
+  //    compatible.
+
+
+  var createFiber = function (tag, pendingProps, key, mode) {
+    // $FlowFixMe: the shapes are exact here but Flow doesn't like constructors
+    return new FiberNode(tag, pendingProps, key, mode);
+  };
+
+  function shouldConstruct$1(Component) {
+    var prototype = Component.prototype;
+    return !!(prototype && prototype.isReactComponent);
+  }
+
+  function isSimpleFunctionComponent(type) {
+    return typeof type === 'function' && !shouldConstruct$1(type) && type.defaultProps === undefined;
+  }
+  function resolveLazyComponentTag(Component) {
+    if (typeof Component === 'function') {
+      return shouldConstruct$1(Component) ? ClassComponent : FunctionComponent;
+    } else if (Component !== undefined && Component !== null) {
+      var $$typeof = Component.$$typeof;
+
+      if ($$typeof === REACT_FORWARD_REF_TYPE) {
+        return ForwardRef;
+      }
+
+      if ($$typeof === REACT_MEMO_TYPE) {
+        return MemoComponent;
+      }
+    }
+
+    return IndeterminateComponent;
+  } // This is used to create an alternate fiber to do work on.
+
+  function createWorkInProgress(current, pendingProps) {
+    var workInProgress = current.alternate;
+
+    if (workInProgress === null) {
+      // We use a double buffering pooling technique because we know that we'll
+      // only ever need at most two versions of a tree. We pool the "other" unused
+      // node that we're free to reuse. This is lazily created to avoid allocating
+      // extra objects for things that are never updated. It also allow us to
+      // reclaim the extra memory if needed.
+      workInProgress = createFiber(current.tag, pendingProps, current.key, current.mode);
+      workInProgress.elementType = current.elementType;
+      workInProgress.type = current.type;
+      workInProgress.stateNode = current.stateNode;
+
+      {
+        // DEV-only fields
+        workInProgress._debugID = current._debugID;
+        workInProgress._debugSource = current._debugSource;
+        workInProgress._debugOwner = current._debugOwner;
+        workInProgress._debugHookTypes = current._debugHookTypes;
+      }
+
+      workInProgress.alternate = current;
+      current.alternate = workInProgress;
+    } else {
+      workInProgress.pendingProps = pendingProps; // Needed because Blocks store data on type.
+
+      workInProgress.type = current.type; // We already have an alternate.
+      // Reset the effect tag.
+
+      workInProgress.flags = NoFlags; // The effect list is no longer valid.
+
+      workInProgress.nextEffect = null;
+      workInProgress.firstEffect = null;
+      workInProgress.lastEffect = null;
+
+      {
+        // We intentionally reset, rather than copy, actualDuration & actualStartTime.
+        // This prevents time from endlessly accumulating in new commits.
+        // This has the downside of resetting values for different priority renders,
+        // But works for yielding (the common case) and should support resuming.
+        workInProgress.actualDuration = 0;
+        workInProgress.actualStartTime = -1;
+      }
+    }
+
+    workInProgress.childLanes = current.childLanes;
+    workInProgress.lanes = current.lanes;
+    workInProgress.child = current.child;
+    workInProgress.memoizedProps = current.memoizedProps;
+    workInProgress.memoizedState = current.memoizedState;
+    workInProgress.updateQueue = current.updateQueue; // Clone the dependencies object. This is mutated during the render phase, so
+    // it cannot be shared with the current fiber.
+
+    var currentDependencies = current.dependencies;
+    workInProgress.dependencies = currentDependencies === null ? null : {
+      lanes: currentDependencies.lanes,
+      firstContext: currentDependencies.firstContext
+    }; // These will be overridden during the parent's reconciliation
+
+    workInProgress.sibling = current.sibling;
+    workInProgress.index = current.index;
+    workInProgress.ref = current.ref;
+
+    {
+      workInProgress.selfBaseDuration = current.selfBaseDuration;
+      workInProgress.treeBaseDuration = current.treeBaseDuration;
+    }
+
+    {
+      workInProgress._debugNeedsRemount = current._debugNeedsRemount;
+
+      switch (workInProgress.tag) {
+        case IndeterminateComponent:
+        case FunctionComponent:
+        case SimpleMemoComponent:
+          workInProgress.type = resolveFunctionForHotReloading(current.type);
+          break;
+
+        case ClassComponent:
+          workInProgress.type = resolveClassForHotReloading(current.type);
+          break;
+
+        case ForwardRef:
+          workInProgress.type = resolveForwardRefForHotReloading(current.type);
+          break;
+      }
+    }
+
+    return workInProgress;
+  } // Used to reuse a Fiber for a second pass.
+
+  function resetWorkInProgress(workInProgress, renderLanes) {
+    // This resets the Fiber to what createFiber or createWorkInProgress would
+    // have set the values to before during the first pass. Ideally this wouldn't
+    // be necessary but unfortunately many code paths reads from the workInProgress
+    // when they should be reading from current and writing to workInProgress.
+    // We assume pendingProps, index, key, ref, return are still untouched to
+    // avoid doing another reconciliation.
+    // Reset the effect tag but keep any Placement tags, since that's something
+    // that child fiber is setting, not the reconciliation.
+    workInProgress.flags &= Placement; // The effect list is no longer valid.
+
+    workInProgress.nextEffect = null;
+    workInProgress.firstEffect = null;
+    workInProgress.lastEffect = null;
+    var current = workInProgress.alternate;
+
+    if (current === null) {
+      // Reset to createFiber's initial values.
+      workInProgress.childLanes = NoLanes;
+      workInProgress.lanes = renderLanes;
+      workInProgress.child = null;
+      workInProgress.memoizedProps = null;
+      workInProgress.memoizedState = null;
+      workInProgress.updateQueue = null;
+      workInProgress.dependencies = null;
+      workInProgress.stateNode = null;
+
+      {
+        // Note: We don't reset the actualTime counts. It's useful to accumulate
+        // actual time across multiple render passes.
+        workInProgress.selfBaseDuration = 0;
+        workInProgress.treeBaseDuration = 0;
+      }
+    } else {
+      // Reset to the cloned values that createWorkInProgress would've.
+      workInProgress.childLanes = current.childLanes;
+      workInProgress.lanes = current.lanes;
+      workInProgress.child = current.child;
+      workInProgress.memoizedProps = current.memoizedProps;
+      workInProgress.memoizedState = current.memoizedState;
+      workInProgress.updateQueue = current.updateQueue; // Needed because Blocks store data on type.
+
+      workInProgress.type = current.type; // Clone the dependencies object. This is mutated during the render phase, so
+      // it cannot be shared with the current fiber.
+
+      var currentDependencies = current.dependencies;
+      workInProgress.dependencies = currentDependencies === null ? null : {
+        lanes: currentDependencies.lanes,
+        firstContext: currentDependencies.firstContext
+      };
+
+      {
+        // Note: We don't reset the actualTime counts. It's useful to accumulate
+        // actual time across multiple render passes.
+        workInProgress.selfBaseDuration = current.selfBaseDuration;
+        workInProgress.treeBaseDuration = current.treeBaseDuration;
+      }
+    }
+
+    return workInProgress;
+  }
+  function createHostRootFiber(tag) {
+    var mode;
+
+    if (tag === ConcurrentRoot) {
+      mode = ConcurrentMode | BlockingMode | StrictMode;
+    } else if (tag === BlockingRoot) {
+      mode = BlockingMode | StrictMode;
+    } else {
+      mode = NoMode;
+    }
+
+    if ( isDevToolsPresent) {
+      // Always collect profile timings when DevTools are present.
+      // This enables DevTools to start capturing timing at any point–
+      // Without some nodes in the tree having empty base times.
+      mode |= ProfileMode;
+    }
+
+    return createFiber(HostRoot, null, null, mode);
+  }
+  function createFiberFromTypeAndProps(type, // React$ElementType
+  key, pendingProps, owner, mode, lanes) {
+    var fiberTag = IndeterminateComponent; // The resolved type is set if we know what the final type will be. I.e. it's not lazy.
+
+    var resolvedType = type;
+
+    if (typeof type === 'function') {
+      if (shouldConstruct$1(type)) {
+        fiberTag = ClassComponent;
+
+        {
+          resolvedType = resolveClassForHotReloading(resolvedType);
+        }
+      } else {
+        {
+          resolvedType = resolveFunctionForHotReloading(resolvedType);
+        }
+      }
+    } else if (typeof type === 'string') {
+      fiberTag = HostComponent;
+    } else {
+      getTag: switch (type) {
+        case REACT_FRAGMENT_TYPE:
+          return createFiberFromFragment(pendingProps.children, mode, lanes, key);
+
+        case REACT_DEBUG_TRACING_MODE_TYPE:
+          fiberTag = Mode;
+          mode |= DebugTracingMode;
+          break;
+
+        case REACT_STRICT_MODE_TYPE:
+          fiberTag = Mode;
+          mode |= StrictMode;
+          break;
+
+        case REACT_PROFILER_TYPE:
+          return createFiberFromProfiler(pendingProps, mode, lanes, key);
+
+        case REACT_SUSPENSE_TYPE:
+          return createFiberFromSuspense(pendingProps, mode, lanes, key);
+
+        case REACT_SUSPENSE_LIST_TYPE:
+          return createFiberFromSuspenseList(pendingProps, mode, lanes, key);
+
+        case REACT_OFFSCREEN_TYPE:
+          return createFiberFromOffscreen(pendingProps, mode, lanes, key);
+
+        case REACT_LEGACY_HIDDEN_TYPE:
+          return createFiberFromLegacyHidden(pendingProps, mode, lanes, key);
+
+        case REACT_SCOPE_TYPE:
+
+        // eslint-disable-next-line no-fallthrough
+
+        default:
+          {
+            if (typeof type === 'object' && type !== null) {
+              switch (type.$$typeof) {
+                case REACT_PROVIDER_TYPE:
+                  fiberTag = ContextProvider;
+                  break getTag;
+
+                case REACT_CONTEXT_TYPE:
+                  // This is a consumer
+                  fiberTag = ContextConsumer;
+                  break getTag;
+
+                case REACT_FORWARD_REF_TYPE:
+                  fiberTag = ForwardRef;
+
+                  {
+                    resolvedType = resolveForwardRefForHotReloading(resolvedType);
+                  }
+
+                  break getTag;
+
+                case REACT_MEMO_TYPE:
+                  fiberTag = MemoComponent;
+                  break getTag;
+
+                case REACT_LAZY_TYPE:
+                  fiberTag = LazyComponent;
+                  resolvedType = null;
+                  break getTag;
+
+                case REACT_BLOCK_TYPE:
+                  fiberTag = Block;
+                  break getTag;
+              }
+            }
+
+            var info = '';
+
+            {
+              if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
+                info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and " + 'named imports.';
+              }
+
+              var ownerName = owner ? getComponentName(owner.type) : null;
+
+              if (ownerName) {
+                info += '\n\nCheck the render method of `' + ownerName + '`.';
+              }
+            }
+
+            {
+              {
+                throw Error( "Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: " + (type == null ? type : typeof type) + "." + info );
+              }
+            }
+          }
+      }
+    }
+
+    var fiber = createFiber(fiberTag, pendingProps, key, mode);
+    fiber.elementType = type;
+    fiber.type = resolvedType;
+    fiber.lanes = lanes;
+
+    {
+      fiber._debugOwner = owner;
+    }
+
+    return fiber;
+  }
+  function createFiberFromElement(element, mode, lanes) {
+    var owner = null;
+
+    {
+      owner = element._owner;
+    }
+
+    var type = element.type;
+    var key = element.key;
+    var pendingProps = element.props;
+    var fiber = createFiberFromTypeAndProps(type, key, pendingProps, owner, mode, lanes);
+
+    {
+      fiber._debugSource = element._source;
+      fiber._debugOwner = element._owner;
+    }
+
+    return fiber;
+  }
+  function createFiberFromFragment(elements, mode, lanes, key) {
+    var fiber = createFiber(Fragment, elements, key, mode);
+    fiber.lanes = lanes;
+    return fiber;
+  }
+
+  function createFiberFromProfiler(pendingProps, mode, lanes, key) {
+    {
+      if (typeof pendingProps.id !== 'string') {
+        error('Profiler must specify an "id" as a prop');
+      }
+    }
+
+    var fiber = createFiber(Profiler, pendingProps, key, mode | ProfileMode); // TODO: The Profiler fiber shouldn't have a type. It has a tag.
+
+    fiber.elementType = REACT_PROFILER_TYPE;
+    fiber.type = REACT_PROFILER_TYPE;
+    fiber.lanes = lanes;
+
+    {
+      fiber.stateNode = {
+        effectDuration: 0,
+        passiveEffectDuration: 0
+      };
+    }
+
+    return fiber;
+  }
+
+  function createFiberFromSuspense(pendingProps, mode, lanes, key) {
+    var fiber = createFiber(SuspenseComponent, pendingProps, key, mode); // TODO: The SuspenseComponent fiber shouldn't have a type. It has a tag.
+    // This needs to be fixed in getComponentName so that it relies on the tag
+    // instead.
+
+    fiber.type = REACT_SUSPENSE_TYPE;
+    fiber.elementType = REACT_SUSPENSE_TYPE;
+    fiber.lanes = lanes;
+    return fiber;
+  }
+  function createFiberFromSuspenseList(pendingProps, mode, lanes, key) {
+    var fiber = createFiber(SuspenseListComponent, pendingProps, key, mode);
+
+    {
+      // TODO: The SuspenseListComponent fiber shouldn't have a type. It has a tag.
+      // This needs to be fixed in getComponentName so that it relies on the tag
+      // instead.
+      fiber.type = REACT_SUSPENSE_LIST_TYPE;
+    }
+
+    fiber.elementType = REACT_SUSPENSE_LIST_TYPE;
+    fiber.lanes = lanes;
+    return fiber;
+  }
+  function createFiberFromOffscreen(pendingProps, mode, lanes, key) {
+    var fiber = createFiber(OffscreenComponent, pendingProps, key, mode); // TODO: The OffscreenComponent fiber shouldn't have a type. It has a tag.
+    // This needs to be fixed in getComponentName so that it relies on the tag
+    // instead.
+
+    {
+      fiber.type = REACT_OFFSCREEN_TYPE;
+    }
+
+    fiber.elementType = REACT_OFFSCREEN_TYPE;
+    fiber.lanes = lanes;
+    return fiber;
+  }
+  function createFiberFromLegacyHidden(pendingProps, mode, lanes, key) {
+    var fiber = createFiber(LegacyHiddenComponent, pendingProps, key, mode); // TODO: The LegacyHidden fiber shouldn't have a type. It has a tag.
+    // This needs to be fixed in getComponentName so that it relies on the tag
+    // instead.
+
+    {
+      fiber.type = REACT_LEGACY_HIDDEN_TYPE;
+    }
+
+    fiber.elementType = REACT_LEGACY_HIDDEN_TYPE;
+    fiber.lanes = lanes;
+    return fiber;
+  }
+  function createFiberFromText(content, mode, lanes) {
+    var fiber = createFiber(HostText, content, null, mode);
+    fiber.lanes = lanes;
+    return fiber;
+  }
+  function createFiberFromHostInstanceForDeletion() {
+    var fiber = createFiber(HostComponent, null, null, NoMode); // TODO: These should not need a type.
+
+    fiber.elementType = 'DELETED';
+    fiber.type = 'DELETED';
+    return fiber;
+  }
+  function createFiberFromPortal(portal, mode, lanes) {
+    var pendingProps = portal.children !== null ? portal.children : [];
+    var fiber = createFiber(HostPortal, pendingProps, portal.key, mode);
+    fiber.lanes = lanes;
+    fiber.stateNode = {
+      containerInfo: portal.containerInfo,
+      pendingChildren: null,
+      // Used by persistent updates
+      implementation: portal.implementation
+    };
+    return fiber;
+  } // Used for stashing WIP properties to replay failed work in DEV.
+
+  function assignFiberPropertiesInDEV(target, source) {
+    if (target === null) {
+      // This Fiber's initial properties will always be overwritten.
+      // We only use a Fiber to ensure the same hidden class so DEV isn't slow.
+      target = createFiber(IndeterminateComponent, null, null, NoMode);
+    } // This is intentionally written as a list of all properties.
+    // We tried to use Object.assign() instead but this is called in
+    // the hottest path, and Object.assign() was too slow:
+    // https://github.com/facebook/react/issues/12502
+    // This code is DEV-only so size is not a concern.
+
+
+    target.tag = source.tag;
+    target.key = source.key;
+    target.elementType = source.elementType;
+    target.type = source.type;
+    target.stateNode = source.stateNode;
+    target.return = source.return;
+    target.child = source.child;
+    target.sibling = source.sibling;
+    target.index = source.index;
+    target.ref = source.ref;
+    target.pendingProps = source.pendingProps;
+    target.memoizedProps = source.memoizedProps;
+    target.updateQueue = source.updateQueue;
+    target.memoizedState = source.memoizedState;
+    target.dependencies = source.dependencies;
+    target.mode = source.mode;
+    target.flags = source.flags;
+    target.nextEffect = source.nextEffect;
+    target.firstEffect = source.firstEffect;
+    target.lastEffect = source.lastEffect;
+    target.lanes = source.lanes;
+    target.childLanes = source.childLanes;
+    target.alternate = source.alternate;
+
+    {
+      target.actualDuration = source.actualDuration;
+      target.actualStartTime = source.actualStartTime;
+      target.selfBaseDuration = source.selfBaseDuration;
+      target.treeBaseDuration = source.treeBaseDuration;
+    }
+
+    target._debugID = source._debugID;
+    target._debugSource = source._debugSource;
+    target._debugOwner = source._debugOwner;
+    target._debugNeedsRemount = source._debugNeedsRemount;
+    target._debugHookTypes = source._debugHookTypes;
+    return target;
+  }
+
+  function FiberRootNode(containerInfo, tag, hydrate) {
+    this.tag = tag;
+    this.containerInfo = containerInfo;
+    this.pendingChildren = null;
+    this.current = null;
+    this.pingCache = null;
+    this.finishedWork = null;
+    this.timeoutHandle = noTimeout;
+    this.context = null;
+    this.pendingContext = null;
+    this.hydrate = hydrate;
+    this.callbackNode = null;
+    this.callbackPriority = NoLanePriority;
+    this.eventTimes = createLaneMap(NoLanes);
+    this.expirationTimes = createLaneMap(NoTimestamp);
+    this.pendingLanes = NoLanes;
+    this.suspendedLanes = NoLanes;
+    this.pingedLanes = NoLanes;
+    this.expiredLanes = NoLanes;
+    this.mutableReadLanes = NoLanes;
+    this.finishedLanes = NoLanes;
+    this.entangledLanes = NoLanes;
+    this.entanglements = createLaneMap(NoLanes);
+
+    {
+      this.mutableSourceEagerHydrationData = null;
+    }
+
+    {
+      this.interactionThreadID = unstable_getThreadID();
+      this.memoizedInteractions = new Set();
+      this.pendingInteractionMap = new Map();
+    }
+
+    {
+      switch (tag) {
+        case BlockingRoot:
+          this._debugRootType = 'createBlockingRoot()';
+          break;
+
+        case ConcurrentRoot:
+          this._debugRootType = 'createRoot()';
+          break;
+
+        case LegacyRoot:
+          this._debugRootType = 'createLegacyRoot()';
+          break;
+      }
+    }
+  }
+
+  function createFiberRoot(containerInfo, tag, hydrate, hydrationCallbacks) {
+    var root = new FiberRootNode(containerInfo, tag, hydrate);
+    // stateNode is any.
+
+
+    var uninitializedFiber = createHostRootFiber(tag);
+    root.current = uninitializedFiber;
+    uninitializedFiber.stateNode = root;
+    initializeUpdateQueue(uninitializedFiber);
+    return root;
+  }
+
+  // This ensures that the version used for server rendering matches the one
+  // that is eventually read during hydration.
+  // If they don't match there's a potential tear and a full deopt render is required.
+
+  function registerMutableSourceForHydration(root, mutableSource) {
+    var getVersion = mutableSource._getVersion;
+    var version = getVersion(mutableSource._source); // TODO Clear this data once all pending hydration work is finished.
+    // Retaining it forever may interfere with GC.
+
+    if (root.mutableSourceEagerHydrationData == null) {
+      root.mutableSourceEagerHydrationData = [mutableSource, version];
+    } else {
+      root.mutableSourceEagerHydrationData.push(mutableSource, version);
+    }
+  }
+
+  function createPortal(children, containerInfo, // TODO: figure out the API for cross-renderer implementation.
+  implementation) {
+    var key = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+    return {
+      // This tag allow us to uniquely identify this as a React Portal
+      $$typeof: REACT_PORTAL_TYPE,
+      key: key == null ? null : '' + key,
+      children: children,
+      containerInfo: containerInfo,
+      implementation: implementation
+    };
+  }
+
+  var didWarnAboutNestedUpdates;
+  var didWarnAboutFindNodeInStrictMode;
+
+  {
+    didWarnAboutNestedUpdates = false;
+    didWarnAboutFindNodeInStrictMode = {};
+  }
+
+  function getContextForSubtree(parentComponent) {
+    if (!parentComponent) {
+      return emptyContextObject;
+    }
+
+    var fiber = get(parentComponent);
+    var parentContext = findCurrentUnmaskedContext(fiber);
+
+    if (fiber.tag === ClassComponent) {
+      var Component = fiber.type;
+
+      if (isContextProvider(Component)) {
+        return processChildContext(fiber, Component, parentContext);
+      }
+    }
+
+    return parentContext;
+  }
+
+  function findHostInstanceWithWarning(component, methodName) {
+    {
+      var fiber = get(component);
+
+      if (fiber === undefined) {
+        if (typeof component.render === 'function') {
+          {
+            {
+              throw Error( "Unable to find node on an unmounted component." );
+            }
+          }
+        } else {
+          {
+            {
+              throw Error( "Argument appears to not be a ReactComponent. Keys: " + Object.keys(component) );
+            }
+          }
+        }
+      }
+
+      var hostFiber = findCurrentHostFiber(fiber);
+
+      if (hostFiber === null) {
+        return null;
+      }
+
+      if (hostFiber.mode & StrictMode) {
+        var componentName = getComponentName(fiber.type) || 'Component';
+
+        if (!didWarnAboutFindNodeInStrictMode[componentName]) {
+          didWarnAboutFindNodeInStrictMode[componentName] = true;
+          var previousFiber = current;
+
+          try {
+            setCurrentFiber(hostFiber);
+
+            if (fiber.mode & StrictMode) {
+              error('%s is deprecated in StrictMode. ' + '%s was passed an instance of %s which is inside StrictMode. ' + 'Instead, add a ref directly to the element you want to reference. ' + 'Learn more about using refs safely here: ' + 'https://reactjs.org/link/strict-mode-find-node', methodName, methodName, componentName);
+            } else {
+              error('%s is deprecated in StrictMode. ' + '%s was passed an instance of %s which renders StrictMode children. ' + 'Instead, add a ref directly to the element you want to reference. ' + 'Learn more about using refs safely here: ' + 'https://reactjs.org/link/strict-mode-find-node', methodName, methodName, componentName);
+            }
+          } finally {
+            // Ideally this should reset to previous but this shouldn't be called in
+            // render and there's another warning for that anyway.
+            if (previousFiber) {
+              setCurrentFiber(previousFiber);
+            } else {
+              resetCurrentFiber();
+            }
+          }
+        }
+      }
+
+      return hostFiber.stateNode;
+    }
+  }
+
+  function createContainer(containerInfo, tag, hydrate, hydrationCallbacks) {
+    return createFiberRoot(containerInfo, tag, hydrate);
+  }
+  function updateContainer(element, container, parentComponent, callback) {
+    {
+      onScheduleRoot(container, element);
+    }
+
+    var current$1 = container.current;
+    var eventTime = requestEventTime();
+
+    {
+      // $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
+      if ('undefined' !== typeof jest) {
+        warnIfUnmockedScheduler(current$1);
+        warnIfNotScopedWithMatchingAct(current$1);
+      }
+    }
+
+    var lane = requestUpdateLane(current$1);
+
+    var context = getContextForSubtree(parentComponent);
+
+    if (container.context === null) {
+      container.context = context;
+    } else {
+      container.pendingContext = context;
+    }
+
+    {
+      if (isRendering && current !== null && !didWarnAboutNestedUpdates) {
+        didWarnAboutNestedUpdates = true;
+
+        error('Render methods should be a pure function of props and state; ' + 'triggering nested component updates from render is not allowed. ' + 'If necessary, trigger nested updates in componentDidUpdate.\n\n' + 'Check the render method of %s.', getComponentName(current.type) || 'Unknown');
+      }
+    }
+
+    var update = createUpdate(eventTime, lane); // Caution: React DevTools currently depends on this property
+    // being called "element".
+
+    update.payload = {
+      element: element
+    };
+    callback = callback === undefined ? null : callback;
+
+    if (callback !== null) {
+      {
+        if (typeof callback !== 'function') {
+          error('render(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callback);
+        }
+      }
+
+      update.callback = callback;
+    }
+
+    enqueueUpdate(current$1, update);
+    scheduleUpdateOnFiber(current$1, lane, eventTime);
+    return lane;
+  }
+  function getPublicRootInstance(container) {
+    var containerFiber = container.current;
+
+    if (!containerFiber.child) {
+      return null;
+    }
+
+    switch (containerFiber.child.tag) {
+      case HostComponent:
+        return getPublicInstance(containerFiber.child.stateNode);
+
+      default:
+        return containerFiber.child.stateNode;
+    }
+  }
+
+  function markRetryLaneImpl(fiber, retryLane) {
+    var suspenseState = fiber.memoizedState;
+
+    if (suspenseState !== null && suspenseState.dehydrated !== null) {
+      suspenseState.retryLane = higherPriorityLane(suspenseState.retryLane, retryLane);
+    }
+  } // Increases the priority of thennables when they resolve within this boundary.
+
+
+  function markRetryLaneIfNotHydrated(fiber, retryLane) {
+    markRetryLaneImpl(fiber, retryLane);
+    var alternate = fiber.alternate;
+
+    if (alternate) {
+      markRetryLaneImpl(alternate, retryLane);
+    }
+  }
+
+  function attemptUserBlockingHydration$1(fiber) {
+    if (fiber.tag !== SuspenseComponent) {
+      // We ignore HostRoots here because we can't increase
+      // their priority and they should not suspend on I/O,
+      // since you have to wrap anything that might suspend in
+      // Suspense.
+      return;
+    }
+
+    var eventTime = requestEventTime();
+    var lane = InputDiscreteHydrationLane;
+    scheduleUpdateOnFiber(fiber, lane, eventTime);
+    markRetryLaneIfNotHydrated(fiber, lane);
+  }
+  function attemptContinuousHydration$1(fiber) {
+    if (fiber.tag !== SuspenseComponent) {
+      // We ignore HostRoots here because we can't increase
+      // their priority and they should not suspend on I/O,
+      // since you have to wrap anything that might suspend in
+      // Suspense.
+      return;
+    }
+
+    var eventTime = requestEventTime();
+    var lane = SelectiveHydrationLane;
+    scheduleUpdateOnFiber(fiber, lane, eventTime);
+    markRetryLaneIfNotHydrated(fiber, lane);
+  }
+  function attemptHydrationAtCurrentPriority$1(fiber) {
+    if (fiber.tag !== SuspenseComponent) {
+      // We ignore HostRoots here because we can't increase
+      // their priority other than synchronously flush it.
+      return;
+    }
+
+    var eventTime = requestEventTime();
+    var lane = requestUpdateLane(fiber);
+    scheduleUpdateOnFiber(fiber, lane, eventTime);
+    markRetryLaneIfNotHydrated(fiber, lane);
+  }
+  function runWithPriority$2(priority, fn) {
+
+    try {
+      setCurrentUpdateLanePriority(priority);
+      return fn();
+    } finally {
+    }
+  }
+  function findHostInstanceWithNoPortals(fiber) {
+    var hostFiber = findCurrentHostFiberWithNoPortals(fiber);
+
+    if (hostFiber === null) {
+      return null;
+    }
+
+    if (hostFiber.tag === FundamentalComponent) {
+      return hostFiber.stateNode.instance;
+    }
+
+    return hostFiber.stateNode;
+  }
+
+  var shouldSuspendImpl = function (fiber) {
+    return false;
+  };
+
+  function shouldSuspend(fiber) {
+    return shouldSuspendImpl(fiber);
+  }
+  var overrideHookState = null;
+  var overrideHookStateDeletePath = null;
+  var overrideHookStateRenamePath = null;
+  var overrideProps = null;
+  var overridePropsDeletePath = null;
+  var overridePropsRenamePath = null;
+  var scheduleUpdate = null;
+  var setSuspenseHandler = null;
+
+  {
+    var copyWithDeleteImpl = function (obj, path, index) {
+      var key = path[index];
+      var updated = Array.isArray(obj) ? obj.slice() : _assign({}, obj);
+
+      if (index + 1 === path.length) {
+        if (Array.isArray(updated)) {
+          updated.splice(key, 1);
+        } else {
+          delete updated[key];
+        }
+
+        return updated;
+      } // $FlowFixMe number or string is fine here
+
+
+      updated[key] = copyWithDeleteImpl(obj[key], path, index + 1);
+      return updated;
+    };
+
+    var copyWithDelete = function (obj, path) {
+      return copyWithDeleteImpl(obj, path, 0);
+    };
+
+    var copyWithRenameImpl = function (obj, oldPath, newPath, index) {
+      var oldKey = oldPath[index];
+      var updated = Array.isArray(obj) ? obj.slice() : _assign({}, obj);
+
+      if (index + 1 === oldPath.length) {
+        var newKey = newPath[index]; // $FlowFixMe number or string is fine here
+
+        updated[newKey] = updated[oldKey];
+
+        if (Array.isArray(updated)) {
+          updated.splice(oldKey, 1);
+        } else {
+          delete updated[oldKey];
+        }
+      } else {
+        // $FlowFixMe number or string is fine here
+        updated[oldKey] = copyWithRenameImpl( // $FlowFixMe number or string is fine here
+        obj[oldKey], oldPath, newPath, index + 1);
+      }
+
+      return updated;
+    };
+
+    var copyWithRename = function (obj, oldPath, newPath) {
+      if (oldPath.length !== newPath.length) {
+        warn('copyWithRename() expects paths of the same length');
+
+        return;
+      } else {
+        for (var i = 0; i < newPath.length - 1; i++) {
+          if (oldPath[i] !== newPath[i]) {
+            warn('copyWithRename() expects paths to be the same except for the deepest key');
+
+            return;
+          }
+        }
+      }
+
+      return copyWithRenameImpl(obj, oldPath, newPath, 0);
+    };
+
+    var copyWithSetImpl = function (obj, path, index, value) {
+      if (index >= path.length) {
+        return value;
+      }
+
+      var key = path[index];
+      var updated = Array.isArray(obj) ? obj.slice() : _assign({}, obj); // $FlowFixMe number or string is fine here
+
+      updated[key] = copyWithSetImpl(obj[key], path, index + 1, value);
+      return updated;
+    };
+
+    var copyWithSet = function (obj, path, value) {
+      return copyWithSetImpl(obj, path, 0, value);
+    };
+
+    var findHook = function (fiber, id) {
+      // For now, the "id" of stateful hooks is just the stateful hook index.
+      // This may change in the future with e.g. nested hooks.
+      var currentHook = fiber.memoizedState;
+
+      while (currentHook !== null && id > 0) {
+        currentHook = currentHook.next;
+        id--;
+      }
+
+      return currentHook;
+    }; // Support DevTools editable values for useState and useReducer.
+
+
+    overrideHookState = function (fiber, id, path, value) {
+      var hook = findHook(fiber, id);
+
+      if (hook !== null) {
+        var newState = copyWithSet(hook.memoizedState, path, value);
+        hook.memoizedState = newState;
+        hook.baseState = newState; // We aren't actually adding an update to the queue,
+        // because there is no update we can add for useReducer hooks that won't trigger an error.
+        // (There's no appropriate action type for DevTools overrides.)
+        // As a result though, React will see the scheduled update as a noop and bailout.
+        // Shallow cloning props works as a workaround for now to bypass the bailout check.
+
+        fiber.memoizedProps = _assign({}, fiber.memoizedProps);
+        scheduleUpdateOnFiber(fiber, SyncLane, NoTimestamp);
+      }
+    };
+
+    overrideHookStateDeletePath = function (fiber, id, path) {
+      var hook = findHook(fiber, id);
+
+      if (hook !== null) {
+        var newState = copyWithDelete(hook.memoizedState, path);
+        hook.memoizedState = newState;
+        hook.baseState = newState; // We aren't actually adding an update to the queue,
+        // because there is no update we can add for useReducer hooks that won't trigger an error.
+        // (There's no appropriate action type for DevTools overrides.)
+        // As a result though, React will see the scheduled update as a noop and bailout.
+        // Shallow cloning props works as a workaround for now to bypass the bailout check.
+
+        fiber.memoizedProps = _assign({}, fiber.memoizedProps);
+        scheduleUpdateOnFiber(fiber, SyncLane, NoTimestamp);
+      }
+    };
+
+    overrideHookStateRenamePath = function (fiber, id, oldPath, newPath) {
+      var hook = findHook(fiber, id);
+
+      if (hook !== null) {
+        var newState = copyWithRename(hook.memoizedState, oldPath, newPath);
+        hook.memoizedState = newState;
+        hook.baseState = newState; // We aren't actually adding an update to the queue,
+        // because there is no update we can add for useReducer hooks that won't trigger an error.
+        // (There's no appropriate action type for DevTools overrides.)
+        // As a result though, React will see the scheduled update as a noop and bailout.
+        // Shallow cloning props works as a workaround for now to bypass the bailout check.
+
+        fiber.memoizedProps = _assign({}, fiber.memoizedProps);
+        scheduleUpdateOnFiber(fiber, SyncLane, NoTimestamp);
+      }
+    }; // Support DevTools props for function components, forwardRef, memo, host components, etc.
+
+
+    overrideProps = function (fiber, path, value) {
+      fiber.pendingProps = copyWithSet(fiber.memoizedProps, path, value);
+
+      if (fiber.alternate) {
+        fiber.alternate.pendingProps = fiber.pendingProps;
+      }
+
+      scheduleUpdateOnFiber(fiber, SyncLane, NoTimestamp);
+    };
+
+    overridePropsDeletePath = function (fiber, path) {
+      fiber.pendingProps = copyWithDelete(fiber.memoizedProps, path);
+
+      if (fiber.alternate) {
+        fiber.alternate.pendingProps = fiber.pendingProps;
+      }
+
+      scheduleUpdateOnFiber(fiber, SyncLane, NoTimestamp);
+    };
+
+    overridePropsRenamePath = function (fiber, oldPath, newPath) {
+      fiber.pendingProps = copyWithRename(fiber.memoizedProps, oldPath, newPath);
+
+      if (fiber.alternate) {
+        fiber.alternate.pendingProps = fiber.pendingProps;
+      }
+
+      scheduleUpdateOnFiber(fiber, SyncLane, NoTimestamp);
+    };
+
+    scheduleUpdate = function (fiber) {
+      scheduleUpdateOnFiber(fiber, SyncLane, NoTimestamp);
+    };
+
+    setSuspenseHandler = function (newShouldSuspendImpl) {
+      shouldSuspendImpl = newShouldSuspendImpl;
+    };
+  }
+
+  function findHostInstanceByFiber(fiber) {
+    var hostFiber = findCurrentHostFiber(fiber);
+
+    if (hostFiber === null) {
+      return null;
+    }
+
+    return hostFiber.stateNode;
+  }
+
+  function emptyFindFiberByHostInstance(instance) {
+    return null;
+  }
+
+  function getCurrentFiberForDevTools() {
+    return current;
+  }
+
+  function injectIntoDevTools(devToolsConfig) {
+    var findFiberByHostInstance = devToolsConfig.findFiberByHostInstance;
+    var ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher;
+    return injectInternals({
+      bundleType: devToolsConfig.bundleType,
+      version: devToolsConfig.version,
+      rendererPackageName: devToolsConfig.rendererPackageName,
+      rendererConfig: devToolsConfig.rendererConfig,
+      overrideHookState: overrideHookState,
+      overrideHookStateDeletePath: overrideHookStateDeletePath,
+      overrideHookStateRenamePath: overrideHookStateRenamePath,
+      overrideProps: overrideProps,
+      overridePropsDeletePath: overridePropsDeletePath,
+      overridePropsRenamePath: overridePropsRenamePath,
+      setSuspenseHandler: setSuspenseHandler,
+      scheduleUpdate: scheduleUpdate,
+      currentDispatcherRef: ReactCurrentDispatcher,
+      findHostInstanceByFiber: findHostInstanceByFiber,
+      findFiberByHostInstance: findFiberByHostInstance || emptyFindFiberByHostInstance,
+      // React Refresh
+      findHostInstancesForRefresh:  findHostInstancesForRefresh ,
+      scheduleRefresh:  scheduleRefresh ,
+      scheduleRoot:  scheduleRoot ,
+      setRefreshHandler:  setRefreshHandler ,
+      // Enables DevTools to append owner stacks to error messages in DEV mode.
+      getCurrentFiber:  getCurrentFiberForDevTools 
+    });
+  }
+
+  function ReactDOMRoot(container, options) {
+    this._internalRoot = createRootImpl(container, ConcurrentRoot, options);
+  }
+
+  function ReactDOMBlockingRoot(container, tag, options) {
+    this._internalRoot = createRootImpl(container, tag, options);
+  }
+
+  ReactDOMRoot.prototype.render = ReactDOMBlockingRoot.prototype.render = function (children) {
+    var root = this._internalRoot;
+
+    {
+      if (typeof arguments[1] === 'function') {
+        error('render(...): does not support the second callback argument. ' + 'To execute a side effect after rendering, declare it in a component body with useEffect().');
+      }
+
+      var container = root.containerInfo;
+
+      if (container.nodeType !== COMMENT_NODE) {
+        var hostInstance = findHostInstanceWithNoPortals(root.current);
+
+        if (hostInstance) {
+          if (hostInstance.parentNode !== container) {
+            error('render(...): It looks like the React-rendered content of the ' + 'root container was removed without using React. This is not ' + 'supported and will cause errors. Instead, call ' + "root.unmount() to empty a root's container.");
+          }
+        }
+      }
+    }
+
+    updateContainer(children, root, null, null);
+  };
+
+  ReactDOMRoot.prototype.unmount = ReactDOMBlockingRoot.prototype.unmount = function () {
+    {
+      if (typeof arguments[0] === 'function') {
+        error('unmount(...): does not support a callback argument. ' + 'To execute a side effect after rendering, declare it in a component body with useEffect().');
+      }
+    }
+
+    var root = this._internalRoot;
+    var container = root.containerInfo;
+    updateContainer(null, root, null, function () {
+      unmarkContainerAsRoot(container);
+    });
+  };
+
+  function createRootImpl(container, tag, options) {
+    // Tag is either LegacyRoot or Concurrent Root
+    var hydrate = options != null && options.hydrate === true;
+    var hydrationCallbacks = options != null && options.hydrationOptions || null;
+    var mutableSources = options != null && options.hydrationOptions != null && options.hydrationOptions.mutableSources || null;
+    var root = createContainer(container, tag, hydrate);
+    markContainerAsRoot(root.current, container);
+    var containerNodeType = container.nodeType;
+
+    {
+      var rootContainerElement = container.nodeType === COMMENT_NODE ? container.parentNode : container;
+      listenToAllSupportedEvents(rootContainerElement);
+    }
+
+    if (mutableSources) {
+      for (var i = 0; i < mutableSources.length; i++) {
+        var mutableSource = mutableSources[i];
+        registerMutableSourceForHydration(root, mutableSource);
+      }
+    }
+
+    return root;
+  }
+  function createLegacyRoot(container, options) {
+    return new ReactDOMBlockingRoot(container, LegacyRoot, options);
+  }
+  function isValidContainer(node) {
+    return !!(node && (node.nodeType === ELEMENT_NODE || node.nodeType === DOCUMENT_NODE || node.nodeType === DOCUMENT_FRAGMENT_NODE || node.nodeType === COMMENT_NODE && node.nodeValue === ' react-mount-point-unstable '));
+  }
+
+  var ReactCurrentOwner$3 = ReactSharedInternals.ReactCurrentOwner;
+  var topLevelUpdateWarnings;
+  var warnedAboutHydrateAPI = false;
+
+  {
+    topLevelUpdateWarnings = function (container) {
+      if (container._reactRootContainer && container.nodeType !== COMMENT_NODE) {
+        var hostInstance = findHostInstanceWithNoPortals(container._reactRootContainer._internalRoot.current);
+
+        if (hostInstance) {
+          if (hostInstance.parentNode !== container) {
+            error('render(...): It looks like the React-rendered content of this ' + 'container was removed without using React. This is not ' + 'supported and will cause errors. Instead, call ' + 'ReactDOM.unmountComponentAtNode to empty a container.');
+          }
+        }
+      }
+
+      var isRootRenderedBySomeReact = !!container._reactRootContainer;
+      var rootEl = getReactRootElementInContainer(container);
+      var hasNonRootReactChild = !!(rootEl && getInstanceFromNode(rootEl));
+
+      if (hasNonRootReactChild && !isRootRenderedBySomeReact) {
+        error('render(...): Replacing React-rendered children with a new root ' + 'component. If you intended to update the children of this node, ' + 'you should instead have the existing children update their state ' + 'and render the new components instead of calling ReactDOM.render.');
+      }
+
+      if (container.nodeType === ELEMENT_NODE && container.tagName && container.tagName.toUpperCase() === 'BODY') {
+        error('render(): Rendering components directly into document.body is ' + 'discouraged, since its children are often manipulated by third-party ' + 'scripts and browser extensions. This may lead to subtle ' + 'reconciliation issues. Try rendering into a container element created ' + 'for your app.');
+      }
+    };
+  }
+
+  function getReactRootElementInContainer(container) {
+    if (!container) {
+      return null;
+    }
+
+    if (container.nodeType === DOCUMENT_NODE) {
+      return container.documentElement;
+    } else {
+      return container.firstChild;
+    }
+  }
+
+  function shouldHydrateDueToLegacyHeuristic(container) {
+    var rootElement = getReactRootElementInContainer(container);
+    return !!(rootElement && rootElement.nodeType === ELEMENT_NODE && rootElement.hasAttribute(ROOT_ATTRIBUTE_NAME));
+  }
+
+  function legacyCreateRootFromDOMContainer(container, forceHydrate) {
+    var shouldHydrate = forceHydrate || shouldHydrateDueToLegacyHeuristic(container); // First clear any existing content.
+
+    if (!shouldHydrate) {
+      var warned = false;
+      var rootSibling;
+
+      while (rootSibling = container.lastChild) {
+        {
+          if (!warned && rootSibling.nodeType === ELEMENT_NODE && rootSibling.hasAttribute(ROOT_ATTRIBUTE_NAME)) {
+            warned = true;
+
+            error('render(): Target node has markup rendered by React, but there ' + 'are unrelated nodes as well. This is most commonly caused by ' + 'white-space inserted around server-rendered markup.');
+          }
+        }
+
+        container.removeChild(rootSibling);
+      }
+    }
+
+    {
+      if (shouldHydrate && !forceHydrate && !warnedAboutHydrateAPI) {
+        warnedAboutHydrateAPI = true;
+
+        warn('render(): Calling ReactDOM.render() to hydrate server-rendered markup ' + 'will stop working in React v18. Replace the ReactDOM.render() call ' + 'with ReactDOM.hydrate() if you want React to attach to the server HTML.');
+      }
+    }
+
+    return createLegacyRoot(container, shouldHydrate ? {
+      hydrate: true
+    } : undefined);
+  }
+
+  function warnOnInvalidCallback$1(callback, callerName) {
+    {
+      if (callback !== null && typeof callback !== 'function') {
+        error('%s(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callerName, callback);
+      }
+    }
+  }
+
+  function legacyRenderSubtreeIntoContainer(parentComponent, children, container, forceHydrate, callback) {
+    {
+      topLevelUpdateWarnings(container);
+      warnOnInvalidCallback$1(callback === undefined ? null : callback, 'render');
+    } // TODO: Without `any` type, Flow says "Property cannot be accessed on any
+    // member of intersection type." Whyyyyyy.
+
+
+    var root = container._reactRootContainer;
+    var fiberRoot;
+
+    if (!root) {
+      // Initial mount
+      root = container._reactRootContainer = legacyCreateRootFromDOMContainer(container, forceHydrate);
+      fiberRoot = root._internalRoot;
+
+      if (typeof callback === 'function') {
+        var originalCallback = callback;
+
+        callback = function () {
+          var instance = getPublicRootInstance(fiberRoot);
+          originalCallback.call(instance);
+        };
+      } // Initial mount should not be batched.
+
+
+      unbatchedUpdates(function () {
+        updateContainer(children, fiberRoot, parentComponent, callback);
+      });
+    } else {
+      fiberRoot = root._internalRoot;
+
+      if (typeof callback === 'function') {
+        var _originalCallback = callback;
+
+        callback = function () {
+          var instance = getPublicRootInstance(fiberRoot);
+
+          _originalCallback.call(instance);
+        };
+      } // Update
+
+
+      updateContainer(children, fiberRoot, parentComponent, callback);
+    }
+
+    return getPublicRootInstance(fiberRoot);
+  }
+
+  function findDOMNode(componentOrElement) {
+    {
+      var owner = ReactCurrentOwner$3.current;
+
+      if (owner !== null && owner.stateNode !== null) {
+        var warnedAboutRefsInRender = owner.stateNode._warnedAboutRefsInRender;
+
+        if (!warnedAboutRefsInRender) {
+          error('%s is accessing findDOMNode inside its render(). ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName(owner.type) || 'A component');
+        }
+
+        owner.stateNode._warnedAboutRefsInRender = true;
+      }
+    }
+
+    if (componentOrElement == null) {
+      return null;
+    }
+
+    if (componentOrElement.nodeType === ELEMENT_NODE) {
+      return componentOrElement;
+    }
+
+    {
+      return findHostInstanceWithWarning(componentOrElement, 'findDOMNode');
+    }
+  }
+  function hydrate(element, container, callback) {
+    if (!isValidContainer(container)) {
+      {
+        throw Error( "Target container is not a DOM element." );
+      }
+    }
+
+    {
+      var isModernRoot = isContainerMarkedAsRoot(container) && container._reactRootContainer === undefined;
+
+      if (isModernRoot) {
+        error('You are calling ReactDOM.hydrate() on a container that was previously ' + 'passed to ReactDOM.createRoot(). This is not supported. ' + 'Did you mean to call createRoot(container, {hydrate: true}).render(element)?');
+      }
+    } // TODO: throw or warn if we couldn't hydrate?
+
+
+    return legacyRenderSubtreeIntoContainer(null, element, container, true, callback);
+  }
+  function render(element, container, callback) {
+    if (!isValidContainer(container)) {
+      {
+        throw Error( "Target container is not a DOM element." );
+      }
+    }
+
+    {
+      var isModernRoot = isContainerMarkedAsRoot(container) && container._reactRootContainer === undefined;
+
+      if (isModernRoot) {
+        error('You are calling ReactDOM.render() on a container that was previously ' + 'passed to ReactDOM.createRoot(). This is not supported. ' + 'Did you mean to call root.render(element)?');
+      }
+    }
+
+    return legacyRenderSubtreeIntoContainer(null, element, container, false, callback);
+  }
+  function unstable_renderSubtreeIntoContainer(parentComponent, element, containerNode, callback) {
+    if (!isValidContainer(containerNode)) {
+      {
+        throw Error( "Target container is not a DOM element." );
+      }
+    }
+
+    if (!(parentComponent != null && has(parentComponent))) {
+      {
+        throw Error( "parentComponent must be a valid React Component" );
+      }
+    }
+
+    return legacyRenderSubtreeIntoContainer(parentComponent, element, containerNode, false, callback);
+  }
+  function unmountComponentAtNode(container) {
+    if (!isValidContainer(container)) {
+      {
+        throw Error( "unmountComponentAtNode(...): Target container is not a DOM element." );
+      }
+    }
+
+    {
+      var isModernRoot = isContainerMarkedAsRoot(container) && container._reactRootContainer === undefined;
+
+      if (isModernRoot) {
+        error('You are calling ReactDOM.unmountComponentAtNode() on a container that was previously ' + 'passed to ReactDOM.createRoot(). This is not supported. Did you mean to call root.unmount()?');
+      }
+    }
+
+    if (container._reactRootContainer) {
+      {
+        var rootEl = getReactRootElementInContainer(container);
+        var renderedByDifferentReact = rootEl && !getInstanceFromNode(rootEl);
+
+        if (renderedByDifferentReact) {
+          error("unmountComponentAtNode(): The node you're attempting to unmount " + 'was rendered by another copy of React.');
+        }
+      } // Unmount should not be batched.
+
+
+      unbatchedUpdates(function () {
+        legacyRenderSubtreeIntoContainer(null, null, container, false, function () {
+          // $FlowFixMe This should probably use `delete container._reactRootContainer`
+          container._reactRootContainer = null;
+          unmarkContainerAsRoot(container);
+        });
+      }); // If you call unmountComponentAtNode twice in quick succession, you'll
+      // get `true` twice. That's probably fine?
+
+      return true;
+    } else {
+      {
+        var _rootEl = getReactRootElementInContainer(container);
+
+        var hasNonRootReactChild = !!(_rootEl && getInstanceFromNode(_rootEl)); // Check if the container itself is a React root node.
+
+        var isContainerReactRoot = container.nodeType === ELEMENT_NODE && isValidContainer(container.parentNode) && !!container.parentNode._reactRootContainer;
+
+        if (hasNonRootReactChild) {
+          error("unmountComponentAtNode(): The node you're attempting to unmount " + 'was rendered by React and is not a top-level container. %s', isContainerReactRoot ? 'You may have accidentally passed in a React root node instead ' + 'of its container.' : 'Instead, have the parent component update its state and ' + 'rerender in order to remove this component.');
+        }
+      }
+
+      return false;
+    }
+  }
+
+  setAttemptUserBlockingHydration(attemptUserBlockingHydration$1);
+  setAttemptContinuousHydration(attemptContinuousHydration$1);
+  setAttemptHydrationAtCurrentPriority(attemptHydrationAtCurrentPriority$1);
+  setAttemptHydrationAtPriority(runWithPriority$2);
+  var didWarnAboutUnstableCreatePortal = false;
+
+  {
+    if (typeof Map !== 'function' || // $FlowIssue Flow incorrectly thinks Map has no prototype
+    Map.prototype == null || typeof Map.prototype.forEach !== 'function' || typeof Set !== 'function' || // $FlowIssue Flow incorrectly thinks Set has no prototype
+    Set.prototype == null || typeof Set.prototype.clear !== 'function' || typeof Set.prototype.forEach !== 'function') {
+      error('React depends on Map and Set built-in types. Make sure that you load a ' + 'polyfill in older browsers. https://reactjs.org/link/react-polyfills');
+    }
+  }
+
+  setRestoreImplementation(restoreControlledState$3);
+  setBatchingImplementation(batchedUpdates$1, discreteUpdates$1, flushDiscreteUpdates, batchedEventUpdates$1);
+
+  function createPortal$1(children, container) {
+    var key = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
+
+    if (!isValidContainer(container)) {
+      {
+        throw Error( "Target container is not a DOM element." );
+      }
+    } // TODO: pass ReactDOM portal implementation as third argument
+    // $FlowFixMe The Flow type is opaque but there's no way to actually create it.
+
+
+    return createPortal(children, container, null, key);
+  }
+
+  function renderSubtreeIntoContainer(parentComponent, element, containerNode, callback) {
+
+    return unstable_renderSubtreeIntoContainer(parentComponent, element, containerNode, callback);
+  }
+
+  function unstable_createPortal(children, container) {
+    var key = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
+
+    {
+      if (!didWarnAboutUnstableCreatePortal) {
+        didWarnAboutUnstableCreatePortal = true;
+
+        warn('The ReactDOM.unstable_createPortal() alias has been deprecated, ' + 'and will be removed in React 18+. Update your code to use ' + 'ReactDOM.createPortal() instead. It has the exact same API, ' + 'but without the "unstable_" prefix.');
+      }
+    }
+
+    return createPortal$1(children, container, key);
+  }
+
+  var Internals = {
+    // Keep in sync with ReactTestUtils.js, and ReactTestUtilsAct.js.
+    // This is an array for better minification.
+    Events: [getInstanceFromNode, getNodeFromInstance, getFiberCurrentPropsFromNode, enqueueStateRestore, restoreStateIfNeeded, flushPassiveEffects, // TODO: This is related to `act`, not events. Move to separate key?
+    IsThisRendererActing]
+  };
+  var foundDevTools = injectIntoDevTools({
+    findFiberByHostInstance: getClosestInstanceFromNode,
+    bundleType:  1 ,
+    version: ReactVersion,
+    rendererPackageName: 'react-dom'
+  });
+
+  {
+    if (!foundDevTools && canUseDOM && window.top === window.self) {
+      // If we're in Chrome or Firefox, provide a download link if not installed.
+      if (navigator.userAgent.indexOf('Chrome') > -1 && navigator.userAgent.indexOf('Edge') === -1 || navigator.userAgent.indexOf('Firefox') > -1) {
+        var protocol = window.location.protocol; // Don't warn in exotic cases like chrome-extension://.
+
+        if (/^(https?|file):$/.test(protocol)) {
+          // eslint-disable-next-line react-internal/no-production-logging
+          console.info('%cDownload the React DevTools ' + 'for a better development experience: ' + 'https://reactjs.org/link/react-devtools' + (protocol === 'file:' ? '\nYou might need to use a local HTTP server (instead of file://): ' + 'https://reactjs.org/link/react-devtools-faq' : ''), 'font-weight:bold');
+        }
+      }
+    }
+  }
+
+  exports.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED = Internals;
+  exports.createPortal = createPortal$1;
+  exports.findDOMNode = findDOMNode;
+  exports.flushSync = flushSync;
+  exports.hydrate = hydrate;
+  exports.render = render;
+  exports.unmountComponentAtNode = unmountComponentAtNode;
+  exports.unstable_batchedUpdates = batchedUpdates$1;
+  exports.unstable_createPortal = unstable_createPortal;
+  exports.unstable_renderSubtreeIntoContainer = renderSubtreeIntoContainer;
+  exports.version = ReactVersion;
+
+})));
+</script>
+    <script>(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+  typeof define === 'function' && define.amd ? define(['exports'], factory) :
+  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.vega = {}));
+}(this, (function (exports) { 'use strict';
+
+  var name = "vega";
+  var version$1 = "5.21.0";
+  var description = "The Vega visualization grammar.";
+  var keywords$1 = [
+  	"vega",
+  	"visualization",
+  	"interaction",
+  	"dataflow",
+  	"library",
+  	"data",
+  	"d3"
+  ];
+  var license = "BSD-3-Clause";
+  var author = "UW Interactive Data Lab (http://idl.cs.washington.edu)";
+  var main = "build/vega-node.js";
+  var module = "build/vega.module.js";
+  var unpkg = "build/vega.min.js";
+  var jsdelivr = "build/vega.min.js";
+  var types = "index.d.ts";
+  var repository = "vega/vega";
+  var scripts = {
+  	bundle: "rollup -c --config-bundle",
+  	prebuild: "rimraf build && rimraf build-es5",
+  	build: "rollup -c --config-core --config-bundle --config-ie",
+  	postbuild: "node schema-copy",
+  	pretest: "yarn build --config-test",
+  	test: "TZ=America/Los_Angeles tape 'test/**/*-test.js'",
+  	prepublishOnly: "yarn test && yarn build",
+  	postpublish: "./schema-deploy.sh"
+  };
+  var dependencies = {
+  	"vega-crossfilter": "~4.0.5",
+  	"vega-dataflow": "~5.7.4",
+  	"vega-encode": "~4.8.3",
+  	"vega-event-selector": "~3.0.0",
+  	"vega-expression": "~5.0.0",
+  	"vega-force": "~4.0.7",
+  	"vega-format": "~1.0.4",
+  	"vega-functions": "~5.12.1",
+  	"vega-geo": "~4.3.8",
+  	"vega-hierarchy": "~4.0.9",
+  	"vega-label": "~1.1.0",
+  	"vega-loader": "~4.4.1",
+  	"vega-parser": "~6.1.4",
+  	"vega-projection": "~1.4.5",
+  	"vega-regression": "~1.0.9",
+  	"vega-runtime": "~6.1.3",
+  	"vega-scale": "~7.1.1",
+  	"vega-scenegraph": "~4.9.4",
+  	"vega-statistics": "~1.7.10",
+  	"vega-time": "~2.0.4",
+  	"vega-transforms": "~4.9.4",
+  	"vega-typings": "~0.22.0",
+  	"vega-util": "~1.17.0",
+  	"vega-view": "~5.10.1",
+  	"vega-view-transforms": "~4.5.8",
+  	"vega-voronoi": "~4.1.5",
+  	"vega-wordcloud": "~4.1.3"
+  };
+  var devDependencies = {
+  	"vega-schema": "*"
+  };
+  var gitHead = "774165e29850b66ec8b79ba52a7955f1ab936ea6";
+  var pkg = {
+  	name: name,
+  	version: version$1,
+  	description: description,
+  	keywords: keywords$1,
+  	license: license,
+  	author: author,
+  	main: main,
+  	module: module,
+  	unpkg: unpkg,
+  	jsdelivr: jsdelivr,
+  	types: types,
+  	repository: repository,
+  	scripts: scripts,
+  	dependencies: dependencies,
+  	devDependencies: devDependencies,
+  	gitHead: gitHead
+  };
+
+  function accessor(fn, fields, name) {
+    fn.fields = fields || [];
+    fn.fname = name;
+    return fn;
+  }
+
+  function accessorName(fn) {
+    return fn == null ? null : fn.fname;
+  }
+
+  function accessorFields(fn) {
+    return fn == null ? null : fn.fields;
+  }
+
+  function getter(path) {
+    return path.length === 1 ? get1(path[0]) : getN(path);
+  }
+
+  const get1 = field => function (obj) {
+    return obj[field];
+  };
+
+  const getN = path => {
+    const len = path.length;
+    return function (obj) {
+      for (let i = 0; i < len; ++i) {
+        obj = obj[path[i]];
+      }
+
+      return obj;
+    };
+  };
+
+  function error(message) {
+    throw Error(message);
+  }
+
+  function splitAccessPath(p) {
+    const path = [],
+          n = p.length;
+    let q = null,
+        b = 0,
+        s = '',
+        i,
+        j,
+        c;
+    p = p + '';
+
+    function push() {
+      path.push(s + p.substring(i, j));
+      s = '';
+      i = j + 1;
+    }
+
+    for (i = j = 0; j < n; ++j) {
+      c = p[j];
+
+      if (c === '\\') {
+        s += p.substring(i, j);
+        s += p.substring(++j, ++j);
+        i = j;
+      } else if (c === q) {
+        push();
+        q = null;
+        b = -1;
+      } else if (q) {
+        continue;
+      } else if (i === b && c === '"') {
+        i = j + 1;
+        q = c;
+      } else if (i === b && c === "'") {
+        i = j + 1;
+        q = c;
+      } else if (c === '.' && !b) {
+        if (j > i) {
+          push();
+        } else {
+          i = j + 1;
+        }
+      } else if (c === '[') {
+        if (j > i) push();
+        b = i = j + 1;
+      } else if (c === ']') {
+        if (!b) error('Access path missing open bracket: ' + p);
+        if (b > 0) push();
+        b = 0;
+        i = j + 1;
+      }
+    }
+
+    if (b) error('Access path missing closing bracket: ' + p);
+    if (q) error('Access path missing closing quote: ' + p);
+
+    if (j > i) {
+      j++;
+      push();
+    }
+
+    return path;
+  }
+
+  function field$1(field, name, opt) {
+    const path = splitAccessPath(field);
+    field = path.length === 1 ? path[0] : field;
+    return accessor((opt && opt.get || getter)(path), [field], name || field);
+  }
+
+  const id = field$1('id');
+  const identity$6 = accessor(_ => _, [], 'identity');
+  const zero$2 = accessor(() => 0, [], 'zero');
+  const one$2 = accessor(() => 1, [], 'one');
+  const truthy = accessor(() => true, [], 'true');
+  const falsy = accessor(() => false, [], 'false');
+
+  function log$1$1(method, level, input) {
+    const args = [level].concat([].slice.call(input));
+    console[method].apply(console, args); // eslint-disable-line no-console
+  }
+
+  const None$2 = 0;
+  const Error$1 = 1;
+  const Warn = 2;
+  const Info = 3;
+  const Debug = 4;
+
+  function logger(_, method, handler = log$1$1) {
+    let level = _ || None$2;
+    return {
+      level(_) {
+        if (arguments.length) {
+          level = +_;
+          return this;
+        } else {
+          return level;
+        }
+      },
+
+      error() {
+        if (level >= Error$1) handler(method || 'error', 'ERROR', arguments);
+        return this;
+      },
+
+      warn() {
+        if (level >= Warn) handler(method || 'warn', 'WARN', arguments);
+        return this;
+      },
+
+      info() {
+        if (level >= Info) handler(method || 'log', 'INFO', arguments);
+        return this;
+      },
+
+      debug() {
+        if (level >= Debug) handler(method || 'log', 'DEBUG', arguments);
+        return this;
+      }
+
+    };
+  }
+
+  var isArray = Array.isArray;
+
+  function isObject(_) {
+    return _ === Object(_);
+  }
+
+  const isLegalKey = key => key !== '__proto__';
+
+  function mergeConfig(...configs) {
+    return configs.reduce((out, source) => {
+      for (const key in source) {
+        if (key === 'signals') {
+          // for signals, we merge the signals arrays
+          // source signals take precedence over
+          // existing signals with the same name
+          out.signals = mergeNamed(out.signals, source.signals);
+        } else {
+          // otherwise, merge objects subject to recursion constraints
+          // for legend block, recurse for the layout entry only
+          // for style block, recurse for all properties
+          // otherwise, no recursion: objects overwrite, no merging
+          const r = key === 'legend' ? {
+            layout: 1
+          } : key === 'style' ? true : null;
+          writeConfig(out, key, source[key], r);
+        }
+      }
+
+      return out;
+    }, {});
+  }
+
+  function writeConfig(output, key, value, recurse) {
+    if (!isLegalKey(key)) return;
+    let k, o;
+
+    if (isObject(value) && !isArray(value)) {
+      o = isObject(output[key]) ? output[key] : output[key] = {};
+
+      for (k in value) {
+        if (recurse && (recurse === true || recurse[k])) {
+          writeConfig(o, k, value[k]);
+        } else if (isLegalKey(k)) {
+          o[k] = value[k];
+        }
+      }
+    } else {
+      output[key] = value;
+    }
+  }
+
+  function mergeNamed(a, b) {
+    if (a == null) return b;
+    const map = {},
+          out = [];
+
+    function add(_) {
+      if (!map[_.name]) {
+        map[_.name] = 1;
+        out.push(_);
+      }
+    }
+
+    b.forEach(add);
+    a.forEach(add);
+    return out;
+  }
+
+  function peek$1(array) {
+    return array[array.length - 1];
+  }
+
+  function toNumber(_) {
+    return _ == null || _ === '' ? null : +_;
+  }
+
+  const exp$2 = sign => x => sign * Math.exp(x);
+
+  const log$4 = sign => x => Math.log(sign * x);
+
+  const symlog$1 = c => x => Math.sign(x) * Math.log1p(Math.abs(x / c));
+
+  const symexp = c => x => Math.sign(x) * Math.expm1(Math.abs(x)) * c;
+
+  const pow$4 = exponent => x => x < 0 ? -Math.pow(-x, exponent) : Math.pow(x, exponent);
+
+  function pan(domain, delta, lift, ground) {
+    const d0 = lift(domain[0]),
+          d1 = lift(peek$1(domain)),
+          dd = (d1 - d0) * delta;
+    return [ground(d0 - dd), ground(d1 - dd)];
+  }
+
+  function panLinear(domain, delta) {
+    return pan(domain, delta, toNumber, identity$6);
+  }
+
+  function panLog(domain, delta) {
+    var sign = Math.sign(domain[0]);
+    return pan(domain, delta, log$4(sign), exp$2(sign));
+  }
+
+  function panPow(domain, delta, exponent) {
+    return pan(domain, delta, pow$4(exponent), pow$4(1 / exponent));
+  }
+
+  function panSymlog(domain, delta, constant) {
+    return pan(domain, delta, symlog$1(constant), symexp(constant));
+  }
+
+  function zoom$1(domain, anchor, scale, lift, ground) {
+    const d0 = lift(domain[0]),
+          d1 = lift(peek$1(domain)),
+          da = anchor != null ? lift(anchor) : (d0 + d1) / 2;
+    return [ground(da + (d0 - da) * scale), ground(da + (d1 - da) * scale)];
+  }
+
+  function zoomLinear(domain, anchor, scale) {
+    return zoom$1(domain, anchor, scale, toNumber, identity$6);
+  }
+
+  function zoomLog(domain, anchor, scale) {
+    const sign = Math.sign(domain[0]);
+    return zoom$1(domain, anchor, scale, log$4(sign), exp$2(sign));
+  }
+
+  function zoomPow(domain, anchor, scale, exponent) {
+    return zoom$1(domain, anchor, scale, pow$4(exponent), pow$4(1 / exponent));
+  }
+
+  function zoomSymlog(domain, anchor, scale, constant) {
+    return zoom$1(domain, anchor, scale, symlog$1(constant), symexp(constant));
+  }
+
+  function quarter(date) {
+    return 1 + ~~(new Date(date).getMonth() / 3);
+  }
+
+  function utcquarter(date) {
+    return 1 + ~~(new Date(date).getUTCMonth() / 3);
+  }
+
+  function array$5(_) {
+    return _ != null ? isArray(_) ? _ : [_] : [];
+  }
+  /**
+   * Span-preserving range clamp. If the span of the input range is less
+   * than (max - min) and an endpoint exceeds either the min or max value,
+   * the range is translated such that the span is preserved and one
+   * endpoint touches the boundary of the min/max range.
+   * If the span exceeds (max - min), the range [min, max] is returned.
+   */
+
+
+  function clampRange(range, min, max) {
+    let lo = range[0],
+        hi = range[1],
+        span;
+
+    if (hi < lo) {
+      span = hi;
+      hi = lo;
+      lo = span;
+    }
+
+    span = hi - lo;
+    return span >= max - min ? [min, max] : [lo = Math.min(Math.max(lo, min), max - span), lo + span];
+  }
+
+  function isFunction(_) {
+    return typeof _ === 'function';
+  }
+
+  const DESCENDING = 'descending';
+
+  function compare$1(fields, orders, opt) {
+    opt = opt || {};
+    orders = array$5(orders) || [];
+    const ord = [],
+          get = [],
+          fmap = {},
+          gen = opt.comparator || comparator;
+    array$5(fields).forEach((f, i) => {
+      if (f == null) return;
+      ord.push(orders[i] === DESCENDING ? -1 : 1);
+      get.push(f = isFunction(f) ? f : field$1(f, null, opt));
+      (accessorFields(f) || []).forEach(_ => fmap[_] = 1);
+    });
+    return get.length === 0 ? null : accessor(gen(get, ord), Object.keys(fmap));
+  }
+
+  const ascending$3 = (u, v) => (u < v || u == null) && v != null ? -1 : (u > v || v == null) && u != null ? 1 : (v = v instanceof Date ? +v : v, u = u instanceof Date ? +u : u) !== u && v === v ? -1 : v !== v && u === u ? 1 : 0;
+
+  const comparator = (fields, orders) => fields.length === 1 ? compare1(fields[0], orders[0]) : compareN(fields, orders, fields.length);
+
+  const compare1 = (field, order) => function (a, b) {
+    return ascending$3(field(a), field(b)) * order;
+  };
+
+  const compareN = (fields, orders, n) => {
+    orders.push(0); // pad zero for convenient lookup
+
+    return function (a, b) {
+      let f,
+          c = 0,
+          i = -1;
+
+      while (c === 0 && ++i < n) {
+        f = fields[i];
+        c = ascending$3(f(a), f(b));
+      }
+
+      return c * orders[i];
+    };
+  };
+
+  function constant$4(_) {
+    return isFunction(_) ? _ : () => _;
+  }
+
+  function debounce(delay, handler) {
+    let tid;
+    return e => {
+      if (tid) clearTimeout(tid);
+      tid = setTimeout(() => (handler(e), tid = null), delay);
+    };
+  }
+
+  function extend$1(_) {
+    for (let x, k, i = 1, len = arguments.length; i < len; ++i) {
+      x = arguments[i];
+
+      for (k in x) {
+        _[k] = x[k];
+      }
+    }
+
+    return _;
+  }
+  /**
+   * Return an array with minimum and maximum values, in the
+   * form [min, max]. Ignores null, undefined, and NaN values.
+   */
+
+
+  function extent(array, f) {
+    let i = 0,
+        n,
+        v,
+        min,
+        max;
+
+    if (array && (n = array.length)) {
+      if (f == null) {
+        // find first valid value
+        for (v = array[i]; i < n && (v == null || v !== v); v = array[++i]);
+
+        min = max = v; // visit all other values
+
+        for (; i < n; ++i) {
+          v = array[i]; // skip null/undefined; NaN will fail all comparisons
+
+          if (v != null) {
+            if (v < min) min = v;
+            if (v > max) max = v;
+          }
+        }
+      } else {
+        // find first valid value
+        for (v = f(array[i]); i < n && (v == null || v !== v); v = f(array[++i]));
+
+        min = max = v; // visit all other values
+
+        for (; i < n; ++i) {
+          v = f(array[i]); // skip null/undefined; NaN will fail all comparisons
+
+          if (v != null) {
+            if (v < min) min = v;
+            if (v > max) max = v;
+          }
+        }
+      }
+    }
+
+    return [min, max];
+  }
+
+  function extentIndex(array, f) {
+    const n = array.length;
+    let i = -1,
+        a,
+        b,
+        c,
+        u,
+        v;
+
+    if (f == null) {
+      while (++i < n) {
+        b = array[i];
+
+        if (b != null && b >= b) {
+          a = c = b;
+          break;
+        }
+      }
+
+      if (i === n) return [-1, -1];
+      u = v = i;
+
+      while (++i < n) {
+        b = array[i];
+
+        if (b != null) {
+          if (a > b) {
+            a = b;
+            u = i;
+          }
+
+          if (c < b) {
+            c = b;
+            v = i;
+          }
+        }
+      }
+    } else {
+      while (++i < n) {
+        b = f(array[i], i, array);
+
+        if (b != null && b >= b) {
+          a = c = b;
+          break;
+        }
+      }
+
+      if (i === n) return [-1, -1];
+      u = v = i;
+
+      while (++i < n) {
+        b = f(array[i], i, array);
+
+        if (b != null) {
+          if (a > b) {
+            a = b;
+            u = i;
+          }
+
+          if (c < b) {
+            c = b;
+            v = i;
+          }
+        }
+      }
+    }
+
+    return [u, v];
+  }
+
+  const hop = Object.prototype.hasOwnProperty;
+
+  function has$1(object, property) {
+    return hop.call(object, property);
+  }
+
+  const NULL = {};
+
+  function fastmap(input) {
+    let obj = {},
+        test;
+
+    function has$1$1(key) {
+      return has$1(obj, key) && obj[key] !== NULL;
+    }
+
+    const map = {
+      size: 0,
+      empty: 0,
+      object: obj,
+      has: has$1$1,
+
+      get(key) {
+        return has$1$1(key) ? obj[key] : undefined;
+      },
+
+      set(key, value) {
+        if (!has$1$1(key)) {
+          ++map.size;
+          if (obj[key] === NULL) --map.empty;
+        }
+
+        obj[key] = value;
+        return this;
+      },
+
+      delete(key) {
+        if (has$1$1(key)) {
+          --map.size;
+          ++map.empty;
+          obj[key] = NULL;
+        }
+
+        return this;
+      },
+
+      clear() {
+        map.size = map.empty = 0;
+        map.object = obj = {};
+      },
+
+      test(_) {
+        if (arguments.length) {
+          test = _;
+          return map;
+        } else {
+          return test;
+        }
+      },
+
+      clean() {
+        const next = {};
+        let size = 0;
+
+        for (const key in obj) {
+          const value = obj[key];
+
+          if (value !== NULL && (!test || !test(value))) {
+            next[key] = value;
+            ++size;
+          }
+        }
+
+        map.size = size;
+        map.empty = 0;
+        map.object = obj = next;
+      }
+
+    };
+    if (input) Object.keys(input).forEach(key => {
+      map.set(key, input[key]);
+    });
+    return map;
+  }
+
+  function flush(range, value, threshold, left, right, center) {
+    if (!threshold && threshold !== 0) return center;
+    const t = +threshold;
+    let a = range[0],
+        b = peek$1(range),
+        l; // swap endpoints if range is reversed
+
+    if (b < a) {
+      l = a;
+      a = b;
+      b = l;
+    } // compare value to endpoints
+
+
+    l = Math.abs(value - a);
+    const r = Math.abs(b - value); // adjust if value is within threshold distance of endpoint
+
+    return l < r && l <= t ? left : r <= t ? right : center;
+  }
+
+  function inherits(child, parent, members) {
+    const proto = child.prototype = Object.create(parent.prototype);
+    Object.defineProperty(proto, 'constructor', {
+      value: child,
+      writable: true,
+      enumerable: true,
+      configurable: true
+    });
+    return extend$1(proto, members);
+  }
+  /**
+   * Predicate that returns true if the value lies within the span
+   * of the given range. The left and right flags control the use
+   * of inclusive (true) or exclusive (false) comparisons.
+   */
+
+
+  function inrange(value, range, left, right) {
+    let r0 = range[0],
+        r1 = range[range.length - 1],
+        t;
+
+    if (r0 > r1) {
+      t = r0;
+      r0 = r1;
+      r1 = t;
+    }
+
+    left = left === undefined || left;
+    right = right === undefined || right;
+    return (left ? r0 <= value : r0 < value) && (right ? value <= r1 : value < r1);
+  }
+
+  function isBoolean$1(_) {
+    return typeof _ === 'boolean';
+  }
+
+  function isDate$1(_) {
+    return Object.prototype.toString.call(_) === '[object Date]';
+  }
+
+  function isIterable(_) {
+    return _ && isFunction(_[Symbol.iterator]);
+  }
+
+  function isNumber$1(_) {
+    return typeof _ === 'number';
+  }
+
+  function isRegExp(_) {
+    return Object.prototype.toString.call(_) === '[object RegExp]';
+  }
+
+  function isString(_) {
+    return typeof _ === 'string';
+  }
+
+  function key(fields, flat, opt) {
+    if (fields) {
+      fields = flat ? array$5(fields).map(f => f.replace(/\\(.)/g, '$1')) : array$5(fields);
+    }
+
+    const len = fields && fields.length,
+          gen = opt && opt.get || getter,
+          map = f => gen(flat ? [f] : splitAccessPath(f));
+
+    let fn;
+
+    if (!len) {
+      fn = function () {
+        return '';
+      };
+    } else if (len === 1) {
+      const get = map(fields[0]);
+
+      fn = function (_) {
+        return '' + get(_);
+      };
+    } else {
+      const get = fields.map(map);
+
+      fn = function (_) {
+        let s = '' + get[0](_),
+            i = 0;
+
+        while (++i < len) s += '|' + get[i](_);
+
+        return s;
+      };
+    }
+
+    return accessor(fn, fields, 'key');
+  }
+
+  function lerp(array, frac) {
+    const lo = array[0],
+          hi = peek$1(array),
+          f = +frac;
+    return !f ? lo : f === 1 ? hi : lo + f * (hi - lo);
+  }
+
+  const DEFAULT_MAX_SIZE = 10000; // adapted from https://github.com/dominictarr/hashlru/ (MIT License)
+
+  function lruCache(maxsize) {
+    maxsize = +maxsize || DEFAULT_MAX_SIZE;
+    let curr, prev, size;
+
+    const clear = () => {
+      curr = {};
+      prev = {};
+      size = 0;
+    };
+
+    const update = (key, value) => {
+      if (++size > maxsize) {
+        prev = curr;
+        curr = {};
+        size = 1;
+      }
+
+      return curr[key] = value;
+    };
+
+    clear();
+    return {
+      clear,
+      has: key => has$1(curr, key) || has$1(prev, key),
+      get: key => has$1(curr, key) ? curr[key] : has$1(prev, key) ? update(key, prev[key]) : undefined,
+      set: (key, value) => has$1(curr, key) ? curr[key] = value : update(key, value)
+    };
+  }
+
+  function merge$3(compare, array0, array1, output) {
+    const n0 = array0.length,
+          n1 = array1.length;
+    if (!n1) return array0;
+    if (!n0) return array1;
+    const merged = output || new array0.constructor(n0 + n1);
+    let i0 = 0,
+        i1 = 0,
+        i = 0;
+
+    for (; i0 < n0 && i1 < n1; ++i) {
+      merged[i] = compare(array0[i0], array1[i1]) > 0 ? array1[i1++] : array0[i0++];
+    }
+
+    for (; i0 < n0; ++i0, ++i) {
+      merged[i] = array0[i0];
+    }
+
+    for (; i1 < n1; ++i1, ++i) {
+      merged[i] = array1[i1];
+    }
+
+    return merged;
+  }
+
+  function repeat(str, reps) {
+    let s = '';
+
+    while (--reps >= 0) s += str;
+
+    return s;
+  }
+
+  function pad$2(str, length, padchar, align) {
+    const c = padchar || ' ',
+          s = str + '',
+          n = length - s.length;
+    return n <= 0 ? s : align === 'left' ? repeat(c, n) + s : align === 'center' ? repeat(c, ~~(n / 2)) + s + repeat(c, Math.ceil(n / 2)) : s + repeat(c, n);
+  }
+  /**
+   * Return the numerical span of an array: the difference between
+   * the last and first values.
+   */
+
+
+  function span(array) {
+    return array && peek$1(array) - array[0] || 0;
+  }
+
+  function $(x) {
+    return isArray(x) ? '[' + x.map($) + ']' : isObject(x) || isString(x) ? // Output valid JSON and JS source strings.
+    // See http://timelessrepo.com/json-isnt-a-javascript-subset
+    JSON.stringify(x).replace('\u2028', '\\u2028').replace('\u2029', '\\u2029') : x;
+  }
+
+  function toBoolean(_) {
+    return _ == null || _ === '' ? null : !_ || _ === 'false' || _ === '0' ? false : !!_;
+  }
+
+  const defaultParser = _ => isNumber$1(_) ? _ : isDate$1(_) ? _ : Date.parse(_);
+
+  function toDate(_, parser) {
+    parser = parser || defaultParser;
+    return _ == null || _ === '' ? null : parser(_);
+  }
+
+  function toString(_) {
+    return _ == null || _ === '' ? null : _ + '';
+  }
+
+  function toSet(_) {
+    const s = {},
+          n = _.length;
+
+    for (let i = 0; i < n; ++i) s[_[i]] = true;
+
+    return s;
+  }
+
+  function truncate$1(str, length, align, ellipsis) {
+    const e = ellipsis != null ? ellipsis : '\u2026',
+          s = str + '',
+          n = s.length,
+          l = Math.max(0, length - e.length);
+    return n <= length ? s : align === 'left' ? e + s.slice(n - l) : align === 'center' ? s.slice(0, Math.ceil(l / 2)) + e + s.slice(n - ~~(l / 2)) : s.slice(0, l) + e;
+  }
+
+  function visitArray(array, filter, visitor) {
+    if (array) {
+      if (filter) {
+        const n = array.length;
+
+        for (let i = 0; i < n; ++i) {
+          const t = filter(array[i]);
+          if (t) visitor(t, i, array);
+        }
+      } else {
+        array.forEach(visitor);
+      }
+    }
+  }
+
+  var EOL = {},
+      EOF = {},
+      QUOTE = 34,
+      NEWLINE = 10,
+      RETURN = 13;
+
+  function objectConverter(columns) {
+    return new Function("d", "return {" + columns.map(function (name, i) {
+      return JSON.stringify(name) + ": d[" + i + "] || \"\"";
+    }).join(",") + "}");
+  }
+
+  function customConverter(columns, f) {
+    var object = objectConverter(columns);
+    return function (row, i) {
+      return f(object(row), i, columns);
+    };
+  } // Compute unique columns in order of discovery.
+
+
+  function inferColumns(rows) {
+    var columnSet = Object.create(null),
+        columns = [];
+    rows.forEach(function (row) {
+      for (var column in row) {
+        if (!(column in columnSet)) {
+          columns.push(columnSet[column] = column);
+        }
+      }
+    });
+    return columns;
+  }
+
+  function pad$1(value, width) {
+    var s = value + "",
+        length = s.length;
+    return length < width ? new Array(width - length + 1).join(0) + s : s;
+  }
+
+  function formatYear$1(year) {
+    return year < 0 ? "-" + pad$1(-year, 6) : year > 9999 ? "+" + pad$1(year, 6) : pad$1(year, 4);
+  }
+
+  function formatDate(date) {
+    var hours = date.getUTCHours(),
+        minutes = date.getUTCMinutes(),
+        seconds = date.getUTCSeconds(),
+        milliseconds = date.getUTCMilliseconds();
+    return isNaN(date) ? "Invalid Date" : formatYear$1(date.getUTCFullYear()) + "-" + pad$1(date.getUTCMonth() + 1, 2) + "-" + pad$1(date.getUTCDate(), 2) + (milliseconds ? "T" + pad$1(hours, 2) + ":" + pad$1(minutes, 2) + ":" + pad$1(seconds, 2) + "." + pad$1(milliseconds, 3) + "Z" : seconds ? "T" + pad$1(hours, 2) + ":" + pad$1(minutes, 2) + ":" + pad$1(seconds, 2) + "Z" : minutes || hours ? "T" + pad$1(hours, 2) + ":" + pad$1(minutes, 2) + "Z" : "");
+  }
+
+  function dsvFormat (delimiter) {
+    var reFormat = new RegExp("[\"" + delimiter + "\n\r]"),
+        DELIMITER = delimiter.charCodeAt(0);
+
+    function parse(text, f) {
+      var convert,
+          columns,
+          rows = parseRows(text, function (row, i) {
+        if (convert) return convert(row, i - 1);
+        columns = row, convert = f ? customConverter(row, f) : objectConverter(row);
+      });
+      rows.columns = columns || [];
+      return rows;
+    }
+
+    function parseRows(text, f) {
+      var rows = [],
+          // output rows
+      N = text.length,
+          I = 0,
+          // current character index
+      n = 0,
+          // current line number
+      t,
+          // current token
+      eof = N <= 0,
+          // current token followed by EOF?
+      eol = false; // current token followed by EOL?
+      // Strip the trailing newline.
+
+      if (text.charCodeAt(N - 1) === NEWLINE) --N;
+      if (text.charCodeAt(N - 1) === RETURN) --N;
+
+      function token() {
+        if (eof) return EOF;
+        if (eol) return eol = false, EOL; // Unescape quotes.
+
+        var i,
+            j = I,
+            c;
+
+        if (text.charCodeAt(j) === QUOTE) {
+          while (I++ < N && text.charCodeAt(I) !== QUOTE || text.charCodeAt(++I) === QUOTE);
+
+          if ((i = I) >= N) eof = true;else if ((c = text.charCodeAt(I++)) === NEWLINE) eol = true;else if (c === RETURN) {
+            eol = true;
+            if (text.charCodeAt(I) === NEWLINE) ++I;
+          }
+          return text.slice(j + 1, i - 1).replace(/""/g, "\"");
+        } // Find next delimiter or newline.
+
+
+        while (I < N) {
+          if ((c = text.charCodeAt(i = I++)) === NEWLINE) eol = true;else if (c === RETURN) {
+            eol = true;
+            if (text.charCodeAt(I) === NEWLINE) ++I;
+          } else if (c !== DELIMITER) continue;
+          return text.slice(j, i);
+        } // Return last token before EOF.
+
+
+        return eof = true, text.slice(j, N);
+      }
+
+      while ((t = token()) !== EOF) {
+        var row = [];
+
+        while (t !== EOL && t !== EOF) row.push(t), t = token();
+
+        if (f && (row = f(row, n++)) == null) continue;
+        rows.push(row);
+      }
+
+      return rows;
+    }
+
+    function preformatBody(rows, columns) {
+      return rows.map(function (row) {
+        return columns.map(function (column) {
+          return formatValue(row[column]);
+        }).join(delimiter);
+      });
+    }
+
+    function format(rows, columns) {
+      if (columns == null) columns = inferColumns(rows);
+      return [columns.map(formatValue).join(delimiter)].concat(preformatBody(rows, columns)).join("\n");
+    }
+
+    function formatBody(rows, columns) {
+      if (columns == null) columns = inferColumns(rows);
+      return preformatBody(rows, columns).join("\n");
+    }
+
+    function formatRows(rows) {
+      return rows.map(formatRow).join("\n");
+    }
+
+    function formatRow(row) {
+      return row.map(formatValue).join(delimiter);
+    }
+
+    function formatValue(value) {
+      return value == null ? "" : value instanceof Date ? formatDate(value) : reFormat.test(value += "") ? "\"" + value.replace(/"/g, "\"\"") + "\"" : value;
+    }
+
+    return {
+      parse: parse,
+      parseRows: parseRows,
+      format: format,
+      formatBody: formatBody,
+      formatRows: formatRows,
+      formatRow: formatRow,
+      formatValue: formatValue
+    };
+  }
+
+  function identity$5 (x) {
+    return x;
+  }
+
+  function transform$3 (transform) {
+    if (transform == null) return identity$5;
+    var x0,
+        y0,
+        kx = transform.scale[0],
+        ky = transform.scale[1],
+        dx = transform.translate[0],
+        dy = transform.translate[1];
+    return function (input, i) {
+      if (!i) x0 = y0 = 0;
+      var j = 2,
+          n = input.length,
+          output = new Array(n);
+      output[0] = (x0 += input[0]) * kx + dx;
+      output[1] = (y0 += input[1]) * ky + dy;
+
+      while (j < n) output[j] = input[j], ++j;
+
+      return output;
+    };
+  }
+
+  function reverse$1 (array, n) {
+    var t,
+        j = array.length,
+        i = j - n;
+
+    while (i < --j) t = array[i], array[i++] = array[j], array[j] = t;
+  }
+
+  function feature (topology, o) {
+    if (typeof o === "string") o = topology.objects[o];
+    return o.type === "GeometryCollection" ? {
+      type: "FeatureCollection",
+      features: o.geometries.map(function (o) {
+        return feature$1(topology, o);
+      })
+    } : feature$1(topology, o);
+  }
+
+  function feature$1(topology, o) {
+    var id = o.id,
+        bbox = o.bbox,
+        properties = o.properties == null ? {} : o.properties,
+        geometry = object$1(topology, o);
+    return id == null && bbox == null ? {
+      type: "Feature",
+      properties: properties,
+      geometry: geometry
+    } : bbox == null ? {
+      type: "Feature",
+      id: id,
+      properties: properties,
+      geometry: geometry
+    } : {
+      type: "Feature",
+      id: id,
+      bbox: bbox,
+      properties: properties,
+      geometry: geometry
+    };
+  }
+
+  function object$1(topology, o) {
+    var transformPoint = transform$3(topology.transform),
+        arcs = topology.arcs;
+
+    function arc(i, points) {
+      if (points.length) points.pop();
+
+      for (var a = arcs[i < 0 ? ~i : i], k = 0, n = a.length; k < n; ++k) {
+        points.push(transformPoint(a[k], k));
+      }
+
+      if (i < 0) reverse$1(points, n);
+    }
+
+    function point(p) {
+      return transformPoint(p);
+    }
+
+    function line(arcs) {
+      var points = [];
+
+      for (var i = 0, n = arcs.length; i < n; ++i) arc(arcs[i], points);
+
+      if (points.length < 2) points.push(points[0]); // This should never happen per the specification.
+
+      return points;
+    }
+
+    function ring(arcs) {
+      var points = line(arcs);
+
+      while (points.length < 4) points.push(points[0]); // This may happen if an arc has only two points.
+
+
+      return points;
+    }
+
+    function polygon(arcs) {
+      return arcs.map(ring);
+    }
+
+    function geometry(o) {
+      var type = o.type,
+          coordinates;
+
+      switch (type) {
+        case "GeometryCollection":
+          return {
+            type: type,
+            geometries: o.geometries.map(geometry)
+          };
+
+        case "Point":
+          coordinates = point(o.coordinates);
+          break;
+
+        case "MultiPoint":
+          coordinates = o.coordinates.map(point);
+          break;
+
+        case "LineString":
+          coordinates = line(o.arcs);
+          break;
+
+        case "MultiLineString":
+          coordinates = o.arcs.map(line);
+          break;
+
+        case "Polygon":
+          coordinates = polygon(o.arcs);
+          break;
+
+        case "MultiPolygon":
+          coordinates = o.arcs.map(polygon);
+          break;
+
+        default:
+          return null;
+      }
+
+      return {
+        type: type,
+        coordinates: coordinates
+      };
+    }
+
+    return geometry(o);
+  }
+
+  function stitch (topology, arcs) {
+    var stitchedArcs = {},
+        fragmentByStart = {},
+        fragmentByEnd = {},
+        fragments = [],
+        emptyIndex = -1; // Stitch empty arcs first, since they may be subsumed by other arcs.
+
+    arcs.forEach(function (i, j) {
+      var arc = topology.arcs[i < 0 ? ~i : i],
+          t;
+
+      if (arc.length < 3 && !arc[1][0] && !arc[1][1]) {
+        t = arcs[++emptyIndex], arcs[emptyIndex] = i, arcs[j] = t;
+      }
+    });
+    arcs.forEach(function (i) {
+      var e = ends(i),
+          start = e[0],
+          end = e[1],
+          f,
+          g;
+
+      if (f = fragmentByEnd[start]) {
+        delete fragmentByEnd[f.end];
+        f.push(i);
+        f.end = end;
+
+        if (g = fragmentByStart[end]) {
+          delete fragmentByStart[g.start];
+          var fg = g === f ? f : f.concat(g);
+          fragmentByStart[fg.start = f.start] = fragmentByEnd[fg.end = g.end] = fg;
+        } else {
+          fragmentByStart[f.start] = fragmentByEnd[f.end] = f;
+        }
+      } else if (f = fragmentByStart[end]) {
+        delete fragmentByStart[f.start];
+        f.unshift(i);
+        f.start = start;
+
+        if (g = fragmentByEnd[start]) {
+          delete fragmentByEnd[g.end];
+          var gf = g === f ? f : g.concat(f);
+          fragmentByStart[gf.start = g.start] = fragmentByEnd[gf.end = f.end] = gf;
+        } else {
+          fragmentByStart[f.start] = fragmentByEnd[f.end] = f;
+        }
+      } else {
+        f = [i];
+        fragmentByStart[f.start = start] = fragmentByEnd[f.end = end] = f;
+      }
+    });
+
+    function ends(i) {
+      var arc = topology.arcs[i < 0 ? ~i : i],
+          p0 = arc[0],
+          p1;
+      if (topology.transform) p1 = [0, 0], arc.forEach(function (dp) {
+        p1[0] += dp[0], p1[1] += dp[1];
+      });else p1 = arc[arc.length - 1];
+      return i < 0 ? [p1, p0] : [p0, p1];
+    }
+
+    function flush(fragmentByEnd, fragmentByStart) {
+      for (var k in fragmentByEnd) {
+        var f = fragmentByEnd[k];
+        delete fragmentByStart[f.start];
+        delete f.start;
+        delete f.end;
+        f.forEach(function (i) {
+          stitchedArcs[i < 0 ? ~i : i] = 1;
+        });
+        fragments.push(f);
+      }
+    }
+
+    flush(fragmentByEnd, fragmentByStart);
+    flush(fragmentByStart, fragmentByEnd);
+    arcs.forEach(function (i) {
+      if (!stitchedArcs[i < 0 ? ~i : i]) fragments.push([i]);
+    });
+    return fragments;
+  }
+
+  function mesh (topology) {
+    return object$1(topology, meshArcs.apply(this, arguments));
+  }
+  function meshArcs(topology, object, filter) {
+    var arcs, i, n;
+    if (arguments.length > 1) arcs = extractArcs(topology, object, filter);else for (i = 0, arcs = new Array(n = topology.arcs.length); i < n; ++i) arcs[i] = i;
+    return {
+      type: "MultiLineString",
+      arcs: stitch(topology, arcs)
+    };
+  }
+
+  function extractArcs(topology, object, filter) {
+    var arcs = [],
+        geomsByArc = [],
+        geom;
+
+    function extract0(i) {
+      var j = i < 0 ? ~i : i;
+      (geomsByArc[j] || (geomsByArc[j] = [])).push({
+        i: i,
+        g: geom
+      });
+    }
+
+    function extract1(arcs) {
+      arcs.forEach(extract0);
+    }
+
+    function extract2(arcs) {
+      arcs.forEach(extract1);
+    }
+
+    function extract3(arcs) {
+      arcs.forEach(extract2);
+    }
+
+    function geometry(o) {
+      switch (geom = o, o.type) {
+        case "GeometryCollection":
+          o.geometries.forEach(geometry);
+          break;
+
+        case "LineString":
+          extract1(o.arcs);
+          break;
+
+        case "MultiLineString":
+        case "Polygon":
+          extract2(o.arcs);
+          break;
+
+        case "MultiPolygon":
+          extract3(o.arcs);
+          break;
+      }
+    }
+
+    geometry(object);
+    geomsByArc.forEach(filter == null ? function (geoms) {
+      arcs.push(geoms[0].i);
+    } : function (geoms) {
+      if (filter(geoms[0].g, geoms[geoms.length - 1].g)) arcs.push(geoms[0].i);
+    });
+    return arcs;
+  }
+
+  function ascending$2 (a, b) {
+    return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
+  }
+
+  function bisector$1 (f) {
+    let delta = f;
+    let compare = f;
+
+    if (f.length === 1) {
+      delta = (d, x) => f(d) - x;
+
+      compare = ascendingComparator$1(f);
+    }
+
+    function left(a, x, lo, hi) {
+      if (lo == null) lo = 0;
+      if (hi == null) hi = a.length;
+
+      while (lo < hi) {
+        const mid = lo + hi >>> 1;
+        if (compare(a[mid], x) < 0) lo = mid + 1;else hi = mid;
+      }
+
+      return lo;
+    }
+
+    function right(a, x, lo, hi) {
+      if (lo == null) lo = 0;
+      if (hi == null) hi = a.length;
+
+      while (lo < hi) {
+        const mid = lo + hi >>> 1;
+        if (compare(a[mid], x) > 0) hi = mid;else lo = mid + 1;
+      }
+
+      return lo;
+    }
+
+    function center(a, x, lo, hi) {
+      if (lo == null) lo = 0;
+      if (hi == null) hi = a.length;
+      const i = left(a, x, lo, hi - 1);
+      return i > lo && delta(a[i - 1], x) > -delta(a[i], x) ? i - 1 : i;
+    }
+
+    return {
+      left,
+      center,
+      right
+    };
+  }
+
+  function ascendingComparator$1(f) {
+    return (d, x) => ascending$2(f(d), x);
+  }
+
+  function number$6 (x) {
+    return x === null ? NaN : +x;
+  }
+  function* numbers$2(values, valueof) {
+    if (valueof === undefined) {
+      for (let value of values) {
+        if (value != null && (value = +value) >= value) {
+          yield value;
+        }
+      }
+    } else {
+      let index = -1;
+
+      for (let value of values) {
+        if ((value = valueof(value, ++index, values)) != null && (value = +value) >= value) {
+          yield value;
+        }
+      }
+    }
+  }
+
+  const ascendingBisect = bisector$1(ascending$2);
+  const bisectRight$1 = ascendingBisect.right;
+  const bisectLeft$1 = ascendingBisect.left;
+  bisector$1(number$6).center;
+  var bisect$1 = bisectRight$1;
+
+  function variance(values, valueof) {
+    let count = 0;
+    let delta;
+    let mean = 0;
+    let sum = 0;
+
+    if (valueof === undefined) {
+      for (let value of values) {
+        if (value != null && (value = +value) >= value) {
+          delta = value - mean;
+          mean += delta / ++count;
+          sum += delta * (value - mean);
+        }
+      }
+    } else {
+      let index = -1;
+
+      for (let value of values) {
+        if ((value = valueof(value, ++index, values)) != null && (value = +value) >= value) {
+          delta = value - mean;
+          mean += delta / ++count;
+          sum += delta * (value - mean);
+        }
+      }
+    }
+
+    if (count > 1) return sum / (count - 1);
+  }
+
+  function deviation(values, valueof) {
+    const v = variance(values, valueof);
+    return v ? Math.sqrt(v) : v;
+  }
+
+  // https://github.com/python/cpython/blob/a74eea238f5baba15797e2e8b570d153bc8690a7/Modules/mathmodule.c#L1423
+  class Adder {
+    constructor() {
+      this._partials = new Float64Array(32);
+      this._n = 0;
+    }
+
+    add(x) {
+      const p = this._partials;
+      let i = 0;
+
+      for (let j = 0; j < this._n && j < 32; j++) {
+        const y = p[j],
+              hi = x + y,
+              lo = Math.abs(x) < Math.abs(y) ? x - (hi - y) : y - (hi - x);
+        if (lo) p[i++] = lo;
+        x = hi;
+      }
+
+      p[i] = x;
+      this._n = i + 1;
+      return this;
+    }
+
+    valueOf() {
+      const p = this._partials;
+      let n = this._n,
+          x,
+          y,
+          lo,
+          hi = 0;
+
+      if (n > 0) {
+        hi = p[--n];
+
+        while (n > 0) {
+          x = hi;
+          y = p[--n];
+          hi = x + y;
+          lo = y - (hi - x);
+          if (lo) break;
+        }
+
+        if (n > 0 && (lo < 0 && p[n - 1] < 0 || lo > 0 && p[n - 1] > 0)) {
+          y = lo * 2;
+          x = hi + y;
+          if (y == x - hi) hi = x;
+        }
+      }
+
+      return hi;
+    }
+
+  }
+
+  function permute (source, keys) {
+    return Array.from(keys, key => source[key]);
+  }
+
+  var e10 = Math.sqrt(50),
+      e5 = Math.sqrt(10),
+      e2 = Math.sqrt(2);
+  function ticks (start, stop, count) {
+    var reverse,
+        i = -1,
+        n,
+        ticks,
+        step;
+    stop = +stop, start = +start, count = +count;
+    if (start === stop && count > 0) return [start];
+    if (reverse = stop < start) n = start, start = stop, stop = n;
+    if ((step = tickIncrement(start, stop, count)) === 0 || !isFinite(step)) return [];
+
+    if (step > 0) {
+      let r0 = Math.round(start / step),
+          r1 = Math.round(stop / step);
+      if (r0 * step < start) ++r0;
+      if (r1 * step > stop) --r1;
+      ticks = new Array(n = r1 - r0 + 1);
+
+      while (++i < n) ticks[i] = (r0 + i) * step;
+    } else {
+      step = -step;
+      let r0 = Math.round(start * step),
+          r1 = Math.round(stop * step);
+      if (r0 / step < start) ++r0;
+      if (r1 / step > stop) --r1;
+      ticks = new Array(n = r1 - r0 + 1);
+
+      while (++i < n) ticks[i] = (r0 + i) / step;
+    }
+
+    if (reverse) ticks.reverse();
+    return ticks;
+  }
+  function tickIncrement(start, stop, count) {
+    var step = (stop - start) / Math.max(0, count),
+        power = Math.floor(Math.log(step) / Math.LN10),
+        error = step / Math.pow(10, power);
+    return power >= 0 ? (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1) * Math.pow(10, power) : -Math.pow(10, -power) / (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1);
+  }
+  function tickStep(start, stop, count) {
+    var step0 = Math.abs(stop - start) / Math.max(0, count),
+        step1 = Math.pow(10, Math.floor(Math.log(step0) / Math.LN10)),
+        error = step0 / step1;
+    if (error >= e10) step1 *= 10;else if (error >= e5) step1 *= 5;else if (error >= e2) step1 *= 2;
+    return stop < start ? -step1 : step1;
+  }
+
+  function max$2(values, valueof) {
+    let max;
+
+    if (valueof === undefined) {
+      for (const value of values) {
+        if (value != null && (max < value || max === undefined && value >= value)) {
+          max = value;
+        }
+      }
+    } else {
+      let index = -1;
+
+      for (let value of values) {
+        if ((value = valueof(value, ++index, values)) != null && (max < value || max === undefined && value >= value)) {
+          max = value;
+        }
+      }
+    }
+
+    return max;
+  }
+
+  function min$2(values, valueof) {
+    let min;
+
+    if (valueof === undefined) {
+      for (const value of values) {
+        if (value != null && (min > value || min === undefined && value >= value)) {
+          min = value;
+        }
+      }
+    } else {
+      let index = -1;
+
+      for (let value of values) {
+        if ((value = valueof(value, ++index, values)) != null && (min > value || min === undefined && value >= value)) {
+          min = value;
+        }
+      }
+    }
+
+    return min;
+  }
+
+  // ISC license, Copyright 2018 Vladimir Agafonkin.
+
+  function quickselect(array, k, left = 0, right = array.length - 1, compare = ascending$2) {
+    while (right > left) {
+      if (right - left > 600) {
+        const n = right - left + 1;
+        const m = k - left + 1;
+        const z = Math.log(n);
+        const s = 0.5 * Math.exp(2 * z / 3);
+        const sd = 0.5 * Math.sqrt(z * s * (n - s) / n) * (m - n / 2 < 0 ? -1 : 1);
+        const newLeft = Math.max(left, Math.floor(k - m * s / n + sd));
+        const newRight = Math.min(right, Math.floor(k + (n - m) * s / n + sd));
+        quickselect(array, k, newLeft, newRight, compare);
+      }
+
+      const t = array[k];
+      let i = left;
+      let j = right;
+      swap$1(array, left, k);
+      if (compare(array[right], t) > 0) swap$1(array, left, right);
+
+      while (i < j) {
+        swap$1(array, i, j), ++i, --j;
+
+        while (compare(array[i], t) < 0) ++i;
+
+        while (compare(array[j], t) > 0) --j;
+      }
+
+      if (compare(array[left], t) === 0) swap$1(array, left, j);else ++j, swap$1(array, j, right);
+      if (j <= k) left = j + 1;
+      if (k <= j) right = j - 1;
+    }
+
+    return array;
+  }
+
+  function swap$1(array, i, j) {
+    const t = array[i];
+    array[i] = array[j];
+    array[j] = t;
+  }
+
+  function quantile$1(values, p, valueof) {
+    values = Float64Array.from(numbers$2(values, valueof));
+    if (!(n = values.length)) return;
+    if ((p = +p) <= 0 || n < 2) return min$2(values);
+    if (p >= 1) return max$2(values);
+    var n,
+        i = (n - 1) * p,
+        i0 = Math.floor(i),
+        value0 = max$2(quickselect(values, i0).subarray(0, i0 + 1)),
+        value1 = min$2(values.subarray(i0 + 1));
+    return value0 + (value1 - value0) * (i - i0);
+  }
+  function quantileSorted(values, p, valueof = number$6) {
+    if (!(n = values.length)) return;
+    if ((p = +p) <= 0 || n < 2) return +valueof(values[0], 0, values);
+    if (p >= 1) return +valueof(values[n - 1], n - 1, values);
+    var n,
+        i = (n - 1) * p,
+        i0 = Math.floor(i),
+        value0 = +valueof(values[i0], i0, values),
+        value1 = +valueof(values[i0 + 1], i0 + 1, values);
+    return value0 + (value1 - value0) * (i - i0);
+  }
+
+  function mean(values, valueof) {
+    let count = 0;
+    let sum = 0;
+
+    if (valueof === undefined) {
+      for (let value of values) {
+        if (value != null && (value = +value) >= value) {
+          ++count, sum += value;
+        }
+      }
+    } else {
+      let index = -1;
+
+      for (let value of values) {
+        if ((value = valueof(value, ++index, values)) != null && (value = +value) >= value) {
+          ++count, sum += value;
+        }
+      }
+    }
+
+    if (count) return sum / count;
+  }
+
+  function median (values, valueof) {
+    return quantile$1(values, 0.5, valueof);
+  }
+
+  function* flatten(arrays) {
+    for (const array of arrays) {
+      yield* array;
+    }
+  }
+
+  function merge$2(arrays) {
+    return Array.from(flatten(arrays));
+  }
+
+  function range$1$1 (start, stop, step) {
+    start = +start, stop = +stop, step = (n = arguments.length) < 2 ? (stop = start, start = 0, 1) : n < 3 ? 1 : +step;
+    var i = -1,
+        n = Math.max(0, Math.ceil((stop - start) / step)) | 0,
+        range = new Array(n);
+
+    while (++i < n) {
+      range[i] = start + i * step;
+    }
+
+    return range;
+  }
+
+  function sum(values, valueof) {
+    let sum = 0;
+
+    if (valueof === undefined) {
+      for (let value of values) {
+        if (value = +value) {
+          sum += value;
+        }
+      }
+    } else {
+      let index = -1;
+
+      for (let value of values) {
+        if (value = +valueof(value, ++index, values)) {
+          sum += value;
+        }
+      }
+    }
+
+    return sum;
+  }
+
+  function formatDecimal (x) {
+    return Math.abs(x = Math.round(x)) >= 1e21 ? x.toLocaleString("en").replace(/,/g, "") : x.toString(10);
+  } // Computes the decimal coefficient and exponent of the specified number x with
+  // significant digits p, where x is positive and p is in [1, 21] or undefined.
+  // For example, formatDecimalParts(1.23) returns ["123", 0].
+
+  function formatDecimalParts(x, p) {
+    if ((i = (x = p ? x.toExponential(p - 1) : x.toExponential()).indexOf("e")) < 0) return null; // NaN, ±Infinity
+
+    var i,
+        coefficient = x.slice(0, i); // The string returned by toExponential either has the form \d\.\d+e[-+]\d+
+    // (e.g., 1.2e+3) or the form \de[-+]\d+ (e.g., 1e+3).
+
+    return [coefficient.length > 1 ? coefficient[0] + coefficient.slice(2) : coefficient, +x.slice(i + 1)];
+  }
+
+  function exponent (x) {
+    return x = formatDecimalParts(Math.abs(x)), x ? x[1] : NaN;
+  }
+
+  function formatGroup (grouping, thousands) {
+    return function (value, width) {
+      var i = value.length,
+          t = [],
+          j = 0,
+          g = grouping[0],
+          length = 0;
+
+      while (i > 0 && g > 0) {
+        if (length + g + 1 > width) g = Math.max(1, width - length);
+        t.push(value.substring(i -= g, i + g));
+        if ((length += g + 1) > width) break;
+        g = grouping[j = (j + 1) % grouping.length];
+      }
+
+      return t.reverse().join(thousands);
+    };
+  }
+
+  function formatNumerals (numerals) {
+    return function (value) {
+      return value.replace(/[0-9]/g, function (i) {
+        return numerals[+i];
+      });
+    };
+  }
+
+  // [[fill]align][sign][symbol][0][width][,][.precision][~][type]
+  var re = /^(?:(.)?([<>=^]))?([+\-( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?(~)?([a-z%])?$/i;
+  function formatSpecifier(specifier) {
+    if (!(match = re.exec(specifier))) throw new Error("invalid format: " + specifier);
+    var match;
+    return new FormatSpecifier({
+      fill: match[1],
+      align: match[2],
+      sign: match[3],
+      symbol: match[4],
+      zero: match[5],
+      width: match[6],
+      comma: match[7],
+      precision: match[8] && match[8].slice(1),
+      trim: match[9],
+      type: match[10]
+    });
+  }
+  formatSpecifier.prototype = FormatSpecifier.prototype; // instanceof
+
+  function FormatSpecifier(specifier) {
+    this.fill = specifier.fill === undefined ? " " : specifier.fill + "";
+    this.align = specifier.align === undefined ? ">" : specifier.align + "";
+    this.sign = specifier.sign === undefined ? "-" : specifier.sign + "";
+    this.symbol = specifier.symbol === undefined ? "" : specifier.symbol + "";
+    this.zero = !!specifier.zero;
+    this.width = specifier.width === undefined ? undefined : +specifier.width;
+    this.comma = !!specifier.comma;
+    this.precision = specifier.precision === undefined ? undefined : +specifier.precision;
+    this.trim = !!specifier.trim;
+    this.type = specifier.type === undefined ? "" : specifier.type + "";
+  }
+
+  FormatSpecifier.prototype.toString = function () {
+    return this.fill + this.align + this.sign + this.symbol + (this.zero ? "0" : "") + (this.width === undefined ? "" : Math.max(1, this.width | 0)) + (this.comma ? "," : "") + (this.precision === undefined ? "" : "." + Math.max(0, this.precision | 0)) + (this.trim ? "~" : "") + this.type;
+  };
+
+  // Trims insignificant zeros, e.g., replaces 1.2000k with 1.2k.
+  function formatTrim (s) {
+    out: for (var n = s.length, i = 1, i0 = -1, i1; i < n; ++i) {
+      switch (s[i]) {
+        case ".":
+          i0 = i1 = i;
+          break;
+
+        case "0":
+          if (i0 === 0) i0 = i;
+          i1 = i;
+          break;
+
+        default:
+          if (!+s[i]) break out;
+          if (i0 > 0) i0 = 0;
+          break;
+      }
+    }
+
+    return i0 > 0 ? s.slice(0, i0) + s.slice(i1 + 1) : s;
+  }
+
+  var prefixExponent;
+  function formatPrefixAuto (x, p) {
+    var d = formatDecimalParts(x, p);
+    if (!d) return x + "";
+    var coefficient = d[0],
+        exponent = d[1],
+        i = exponent - (prefixExponent = Math.max(-8, Math.min(8, Math.floor(exponent / 3))) * 3) + 1,
+        n = coefficient.length;
+    return i === n ? coefficient : i > n ? coefficient + new Array(i - n + 1).join("0") : i > 0 ? coefficient.slice(0, i) + "." + coefficient.slice(i) : "0." + new Array(1 - i).join("0") + formatDecimalParts(x, Math.max(0, p + i - 1))[0]; // less than 1y!
+  }
+
+  function formatRounded (x, p) {
+    var d = formatDecimalParts(x, p);
+    if (!d) return x + "";
+    var coefficient = d[0],
+        exponent = d[1];
+    return exponent < 0 ? "0." + new Array(-exponent).join("0") + coefficient : coefficient.length > exponent + 1 ? coefficient.slice(0, exponent + 1) + "." + coefficient.slice(exponent + 1) : coefficient + new Array(exponent - coefficient.length + 2).join("0");
+  }
+
+  var formatTypes = {
+    "%": (x, p) => (x * 100).toFixed(p),
+    "b": x => Math.round(x).toString(2),
+    "c": x => x + "",
+    "d": formatDecimal,
+    "e": (x, p) => x.toExponential(p),
+    "f": (x, p) => x.toFixed(p),
+    "g": (x, p) => x.toPrecision(p),
+    "o": x => Math.round(x).toString(8),
+    "p": (x, p) => formatRounded(x * 100, p),
+    "r": formatRounded,
+    "s": formatPrefixAuto,
+    "X": x => Math.round(x).toString(16).toUpperCase(),
+    "x": x => Math.round(x).toString(16)
+  };
+
+  function identity$4 (x) {
+    return x;
+  }
+
+  var map$1 = Array.prototype.map,
+      prefixes = ["y", "z", "a", "f", "p", "n", "µ", "m", "", "k", "M", "G", "T", "P", "E", "Z", "Y"];
+  function formatLocale$1 (locale) {
+    var group = locale.grouping === undefined || locale.thousands === undefined ? identity$4 : formatGroup(map$1.call(locale.grouping, Number), locale.thousands + ""),
+        currencyPrefix = locale.currency === undefined ? "" : locale.currency[0] + "",
+        currencySuffix = locale.currency === undefined ? "" : locale.currency[1] + "",
+        decimal = locale.decimal === undefined ? "." : locale.decimal + "",
+        numerals = locale.numerals === undefined ? identity$4 : formatNumerals(map$1.call(locale.numerals, String)),
+        percent = locale.percent === undefined ? "%" : locale.percent + "",
+        minus = locale.minus === undefined ? "−" : locale.minus + "",
+        nan = locale.nan === undefined ? "NaN" : locale.nan + "";
+
+    function newFormat(specifier) {
+      specifier = formatSpecifier(specifier);
+      var fill = specifier.fill,
+          align = specifier.align,
+          sign = specifier.sign,
+          symbol = specifier.symbol,
+          zero = specifier.zero,
+          width = specifier.width,
+          comma = specifier.comma,
+          precision = specifier.precision,
+          trim = specifier.trim,
+          type = specifier.type; // The "n" type is an alias for ",g".
+
+      if (type === "n") comma = true, type = "g"; // The "" type, and any invalid type, is an alias for ".12~g".
+      else if (!formatTypes[type]) precision === undefined && (precision = 12), trim = true, type = "g"; // If zero fill is specified, padding goes after sign and before digits.
+
+      if (zero || fill === "0" && align === "=") zero = true, fill = "0", align = "="; // Compute the prefix and suffix.
+      // For SI-prefix, the suffix is lazily computed.
+
+      var prefix = symbol === "$" ? currencyPrefix : symbol === "#" && /[boxX]/.test(type) ? "0" + type.toLowerCase() : "",
+          suffix = symbol === "$" ? currencySuffix : /[%p]/.test(type) ? percent : ""; // What format function should we use?
+      // Is this an integer type?
+      // Can this type generate exponential notation?
+
+      var formatType = formatTypes[type],
+          maybeSuffix = /[defgprs%]/.test(type); // Set the default precision if not specified,
+      // or clamp the specified precision to the supported range.
+      // For significant precision, it must be in [1, 21].
+      // For fixed precision, it must be in [0, 20].
+
+      precision = precision === undefined ? 6 : /[gprs]/.test(type) ? Math.max(1, Math.min(21, precision)) : Math.max(0, Math.min(20, precision));
+
+      function format(value) {
+        var valuePrefix = prefix,
+            valueSuffix = suffix,
+            i,
+            n,
+            c;
+
+        if (type === "c") {
+          valueSuffix = formatType(value) + valueSuffix;
+          value = "";
+        } else {
+          value = +value; // Determine the sign. -0 is not less than 0, but 1 / -0 is!
+
+          var valueNegative = value < 0 || 1 / value < 0; // Perform the initial formatting.
+
+          value = isNaN(value) ? nan : formatType(Math.abs(value), precision); // Trim insignificant zeros.
+
+          if (trim) value = formatTrim(value); // If a negative value rounds to zero after formatting, and no explicit positive sign is requested, hide the sign.
+
+          if (valueNegative && +value === 0 && sign !== "+") valueNegative = false; // Compute the prefix and suffix.
+
+          valuePrefix = (valueNegative ? sign === "(" ? sign : minus : sign === "-" || sign === "(" ? "" : sign) + valuePrefix;
+          valueSuffix = (type === "s" ? prefixes[8 + prefixExponent / 3] : "") + valueSuffix + (valueNegative && sign === "(" ? ")" : ""); // Break the formatted value into the integer “value” part that can be
+          // grouped, and fractional or exponential “suffix” part that is not.
+
+          if (maybeSuffix) {
+            i = -1, n = value.length;
+
+            while (++i < n) {
+              if (c = value.charCodeAt(i), 48 > c || c > 57) {
+                valueSuffix = (c === 46 ? decimal + value.slice(i + 1) : value.slice(i)) + valueSuffix;
+                value = value.slice(0, i);
+                break;
+              }
+            }
+          }
+        } // If the fill character is not "0", grouping is applied before padding.
+
+
+        if (comma && !zero) value = group(value, Infinity); // Compute the padding.
+
+        var length = valuePrefix.length + value.length + valueSuffix.length,
+            padding = length < width ? new Array(width - length + 1).join(fill) : ""; // If the fill character is "0", grouping is applied after padding.
+
+        if (comma && zero) value = group(padding + value, padding.length ? width - valueSuffix.length : Infinity), padding = ""; // Reconstruct the final output based on the desired alignment.
+
+        switch (align) {
+          case "<":
+            value = valuePrefix + value + valueSuffix + padding;
+            break;
+
+          case "=":
+            value = valuePrefix + padding + value + valueSuffix;
+            break;
+
+          case "^":
+            value = padding.slice(0, length = padding.length >> 1) + valuePrefix + value + valueSuffix + padding.slice(length);
+            break;
+
+          default:
+            value = padding + valuePrefix + value + valueSuffix;
+            break;
+        }
+
+        return numerals(value);
+      }
+
+      format.toString = function () {
+        return specifier + "";
+      };
+
+      return format;
+    }
+
+    function formatPrefix(specifier, value) {
+      var f = newFormat((specifier = formatSpecifier(specifier), specifier.type = "f", specifier)),
+          e = Math.max(-8, Math.min(8, Math.floor(exponent(value) / 3))) * 3,
+          k = Math.pow(10, -e),
+          prefix = prefixes[8 + e / 3];
+      return function (value) {
+        return f(k * value) + prefix;
+      };
+    }
+
+    return {
+      format: newFormat,
+      formatPrefix: formatPrefix
+    };
+  }
+
+  var locale$2;
+  var format$3;
+  var formatPrefix;
+  defaultLocale$2({
+    thousands: ",",
+    grouping: [3],
+    currency: ["$", ""]
+  });
+  function defaultLocale$2(definition) {
+    locale$2 = formatLocale$1(definition);
+    format$3 = locale$2.format;
+    formatPrefix = locale$2.formatPrefix;
+    return locale$2;
+  }
+
+  function precisionFixed (step) {
+    return Math.max(0, -exponent(Math.abs(step)));
+  }
+
+  function precisionPrefix (step, value) {
+    return Math.max(0, Math.max(-8, Math.min(8, Math.floor(exponent(value) / 3))) * 3 - exponent(Math.abs(step)));
+  }
+
+  function precisionRound (step, max) {
+    step = Math.abs(step), max = Math.abs(max) - step;
+    return Math.max(0, exponent(max) - exponent(step)) + 1;
+  }
+
+  var t0$2 = new Date(),
+      t1$1 = new Date();
+  function newInterval(floori, offseti, count, field) {
+    function interval(date) {
+      return floori(date = arguments.length === 0 ? new Date() : new Date(+date)), date;
+    }
+
+    interval.floor = function (date) {
+      return floori(date = new Date(+date)), date;
+    };
+
+    interval.ceil = function (date) {
+      return floori(date = new Date(date - 1)), offseti(date, 1), floori(date), date;
+    };
+
+    interval.round = function (date) {
+      var d0 = interval(date),
+          d1 = interval.ceil(date);
+      return date - d0 < d1 - date ? d0 : d1;
+    };
+
+    interval.offset = function (date, step) {
+      return offseti(date = new Date(+date), step == null ? 1 : Math.floor(step)), date;
+    };
+
+    interval.range = function (start, stop, step) {
+      var range = [],
+          previous;
+      start = interval.ceil(start);
+      step = step == null ? 1 : Math.floor(step);
+      if (!(start < stop) || !(step > 0)) return range; // also handles Invalid Date
+
+      do range.push(previous = new Date(+start)), offseti(start, step), floori(start); while (previous < start && start < stop);
+
+      return range;
+    };
+
+    interval.filter = function (test) {
+      return newInterval(function (date) {
+        if (date >= date) while (floori(date), !test(date)) date.setTime(date - 1);
+      }, function (date, step) {
+        if (date >= date) {
+          if (step < 0) while (++step <= 0) {
+            while (offseti(date, -1), !test(date)) {} // eslint-disable-line no-empty
+
+          } else while (--step >= 0) {
+            while (offseti(date, +1), !test(date)) {} // eslint-disable-line no-empty
+
+          }
+        }
+      });
+    };
+
+    if (count) {
+      interval.count = function (start, end) {
+        t0$2.setTime(+start), t1$1.setTime(+end);
+        floori(t0$2), floori(t1$1);
+        return Math.floor(count(t0$2, t1$1));
+      };
+
+      interval.every = function (step) {
+        step = Math.floor(step);
+        return !isFinite(step) || !(step > 0) ? null : !(step > 1) ? interval : interval.filter(field ? function (d) {
+          return field(d) % step === 0;
+        } : function (d) {
+          return interval.count(0, d) % step === 0;
+        });
+      };
+    }
+
+    return interval;
+  }
+
+  var millisecond = newInterval(function () {// noop
+  }, function (date, step) {
+    date.setTime(+date + step);
+  }, function (start, end) {
+    return end - start;
+  }); // An optimized implementation for this simple case.
+
+  millisecond.every = function (k) {
+    k = Math.floor(k);
+    if (!isFinite(k) || !(k > 0)) return null;
+    if (!(k > 1)) return millisecond;
+    return newInterval(function (date) {
+      date.setTime(Math.floor(date / k) * k);
+    }, function (date, step) {
+      date.setTime(+date + step * k);
+    }, function (start, end) {
+      return (end - start) / k;
+    });
+  };
+
+  var utcMillisecond = millisecond;
+
+  const durationSecond$1 = 1000;
+  const durationMinute$1 = durationSecond$1 * 60;
+  const durationHour$1 = durationMinute$1 * 60;
+  const durationDay$1 = durationHour$1 * 24;
+  const durationWeek$1 = durationDay$1 * 7;
+  const durationMonth$1 = durationDay$1 * 30;
+  const durationYear$1 = durationDay$1 * 365;
+
+  var second = newInterval(function (date) {
+    date.setTime(date - date.getMilliseconds());
+  }, function (date, step) {
+    date.setTime(+date + step * durationSecond$1);
+  }, function (start, end) {
+    return (end - start) / durationSecond$1;
+  }, function (date) {
+    return date.getUTCSeconds();
+  });
+  var utcSecond = second;
+
+  var minute = newInterval(function (date) {
+    date.setTime(date - date.getMilliseconds() - date.getSeconds() * durationSecond$1);
+  }, function (date, step) {
+    date.setTime(+date + step * durationMinute$1);
+  }, function (start, end) {
+    return (end - start) / durationMinute$1;
+  }, function (date) {
+    return date.getMinutes();
+  });
+  var timeMinute = minute;
+
+  var hour = newInterval(function (date) {
+    date.setTime(date - date.getMilliseconds() - date.getSeconds() * durationSecond$1 - date.getMinutes() * durationMinute$1);
+  }, function (date, step) {
+    date.setTime(+date + step * durationHour$1);
+  }, function (start, end) {
+    return (end - start) / durationHour$1;
+  }, function (date) {
+    return date.getHours();
+  });
+  var timeHour = hour;
+
+  var day = newInterval(date => date.setHours(0, 0, 0, 0), (date, step) => date.setDate(date.getDate() + step), (start, end) => (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute$1) / durationDay$1, date => date.getDate() - 1);
+  var timeDay = day;
+
+  function weekday$1(i) {
+    return newInterval(function (date) {
+      date.setDate(date.getDate() - (date.getDay() + 7 - i) % 7);
+      date.setHours(0, 0, 0, 0);
+    }, function (date, step) {
+      date.setDate(date.getDate() + step * 7);
+    }, function (start, end) {
+      return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute$1) / durationWeek$1;
+    });
+  }
+
+  var sunday = weekday$1(0);
+  var monday = weekday$1(1);
+  weekday$1(2);
+  weekday$1(3);
+  var thursday = weekday$1(4);
+  weekday$1(5);
+  weekday$1(6);
+
+  var month = newInterval(function (date) {
+    date.setDate(1);
+    date.setHours(0, 0, 0, 0);
+  }, function (date, step) {
+    date.setMonth(date.getMonth() + step);
+  }, function (start, end) {
+    return end.getMonth() - start.getMonth() + (end.getFullYear() - start.getFullYear()) * 12;
+  }, function (date) {
+    return date.getMonth();
+  });
+  var timeMonth = month;
+
+  var year = newInterval(function (date) {
+    date.setMonth(0, 1);
+    date.setHours(0, 0, 0, 0);
+  }, function (date, step) {
+    date.setFullYear(date.getFullYear() + step);
+  }, function (start, end) {
+    return end.getFullYear() - start.getFullYear();
+  }, function (date) {
+    return date.getFullYear();
+  }); // An optimized implementation for this simple case.
+
+  year.every = function (k) {
+    return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function (date) {
+      date.setFullYear(Math.floor(date.getFullYear() / k) * k);
+      date.setMonth(0, 1);
+      date.setHours(0, 0, 0, 0);
+    }, function (date, step) {
+      date.setFullYear(date.getFullYear() + step * k);
+    });
+  };
+
+  var timeYear = year;
+
+  var utcMinute = newInterval(function (date) {
+    date.setUTCSeconds(0, 0);
+  }, function (date, step) {
+    date.setTime(+date + step * durationMinute$1);
+  }, function (start, end) {
+    return (end - start) / durationMinute$1;
+  }, function (date) {
+    return date.getUTCMinutes();
+  });
+  var utcMinute$1 = utcMinute;
+
+  var utcHour = newInterval(function (date) {
+    date.setUTCMinutes(0, 0, 0);
+  }, function (date, step) {
+    date.setTime(+date + step * durationHour$1);
+  }, function (start, end) {
+    return (end - start) / durationHour$1;
+  }, function (date) {
+    return date.getUTCHours();
+  });
+  var utcHour$1 = utcHour;
+
+  var utcDay = newInterval(function (date) {
+    date.setUTCHours(0, 0, 0, 0);
+  }, function (date, step) {
+    date.setUTCDate(date.getUTCDate() + step);
+  }, function (start, end) {
+    return (end - start) / durationDay$1;
+  }, function (date) {
+    return date.getUTCDate() - 1;
+  });
+  var utcDay$1 = utcDay;
+
+  function utcWeekday(i) {
+    return newInterval(function (date) {
+      date.setUTCDate(date.getUTCDate() - (date.getUTCDay() + 7 - i) % 7);
+      date.setUTCHours(0, 0, 0, 0);
+    }, function (date, step) {
+      date.setUTCDate(date.getUTCDate() + step * 7);
+    }, function (start, end) {
+      return (end - start) / durationWeek$1;
+    });
+  }
+
+  var utcSunday = utcWeekday(0);
+  var utcMonday = utcWeekday(1);
+  utcWeekday(2);
+  utcWeekday(3);
+  var utcThursday = utcWeekday(4);
+  utcWeekday(5);
+  utcWeekday(6);
+
+  var utcMonth = newInterval(function (date) {
+    date.setUTCDate(1);
+    date.setUTCHours(0, 0, 0, 0);
+  }, function (date, step) {
+    date.setUTCMonth(date.getUTCMonth() + step);
+  }, function (start, end) {
+    return end.getUTCMonth() - start.getUTCMonth() + (end.getUTCFullYear() - start.getUTCFullYear()) * 12;
+  }, function (date) {
+    return date.getUTCMonth();
+  });
+  var utcMonth$1 = utcMonth;
+
+  var utcYear = newInterval(function (date) {
+    date.setUTCMonth(0, 1);
+    date.setUTCHours(0, 0, 0, 0);
+  }, function (date, step) {
+    date.setUTCFullYear(date.getUTCFullYear() + step);
+  }, function (start, end) {
+    return end.getUTCFullYear() - start.getUTCFullYear();
+  }, function (date) {
+    return date.getUTCFullYear();
+  }); // An optimized implementation for this simple case.
+
+  utcYear.every = function (k) {
+    return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function (date) {
+      date.setUTCFullYear(Math.floor(date.getUTCFullYear() / k) * k);
+      date.setUTCMonth(0, 1);
+      date.setUTCHours(0, 0, 0, 0);
+    }, function (date, step) {
+      date.setUTCFullYear(date.getUTCFullYear() + step * k);
+    });
+  };
+
+  var utcYear$1 = utcYear;
+
+  function ticker(year, month, week, day, hour, minute) {
+    const tickIntervals = [[utcSecond, 1, durationSecond$1], [utcSecond, 5, 5 * durationSecond$1], [utcSecond, 15, 15 * durationSecond$1], [utcSecond, 30, 30 * durationSecond$1], [minute, 1, durationMinute$1], [minute, 5, 5 * durationMinute$1], [minute, 15, 15 * durationMinute$1], [minute, 30, 30 * durationMinute$1], [hour, 1, durationHour$1], [hour, 3, 3 * durationHour$1], [hour, 6, 6 * durationHour$1], [hour, 12, 12 * durationHour$1], [day, 1, durationDay$1], [day, 2, 2 * durationDay$1], [week, 1, durationWeek$1], [month, 1, durationMonth$1], [month, 3, 3 * durationMonth$1], [year, 1, durationYear$1]];
+
+    function ticks(start, stop, count) {
+      const reverse = stop < start;
+      if (reverse) [start, stop] = [stop, start];
+      const interval = count && typeof count.range === "function" ? count : tickInterval(start, stop, count);
+      const ticks = interval ? interval.range(start, +stop + 1) : []; // inclusive stop
+
+      return reverse ? ticks.reverse() : ticks;
+    }
+
+    function tickInterval(start, stop, count) {
+      const target = Math.abs(stop - start) / count;
+      const i = bisector$1(([,, step]) => step).right(tickIntervals, target);
+      if (i === tickIntervals.length) return year.every(tickStep(start / durationYear$1, stop / durationYear$1, count));
+      if (i === 0) return utcMillisecond.every(Math.max(tickStep(start, stop, count), 1));
+      const [t, step] = tickIntervals[target / tickIntervals[i - 1][2] < tickIntervals[i][2] / target ? i - 1 : i];
+      return t.every(step);
+    }
+
+    return [ticks, tickInterval];
+  }
+
+  const [utcTicks, utcTickInterval] = ticker(utcYear$1, utcMonth$1, utcSunday, utcDay$1, utcHour$1, utcMinute$1);
+  const [timeTicks, timeTickInterval] = ticker(timeYear, timeMonth, sunday, timeDay, timeHour, timeMinute);
+
+  const YEAR = 'year';
+  const QUARTER = 'quarter';
+  const MONTH = 'month';
+  const WEEK = 'week';
+  const DATE = 'date';
+  const DAY = 'day';
+  const DAYOFYEAR = 'dayofyear';
+  const HOURS = 'hours';
+  const MINUTES = 'minutes';
+  const SECONDS = 'seconds';
+  const MILLISECONDS = 'milliseconds';
+  const TIME_UNITS = [YEAR, QUARTER, MONTH, WEEK, DATE, DAY, DAYOFYEAR, HOURS, MINUTES, SECONDS, MILLISECONDS];
+  const UNITS = TIME_UNITS.reduce((o, u, i) => (o[u] = 1 + i, o), {});
+
+  function timeUnits(units) {
+    const u = array$5(units).slice(),
+          m = {}; // check validity
+
+    if (!u.length) error('Missing time unit.');
+    u.forEach(unit => {
+      if (has$1(UNITS, unit)) {
+        m[unit] = 1;
+      } else {
+        error(`Invalid time unit: ${unit}.`);
+      }
+    });
+    const numTypes = (m[WEEK] || m[DAY] ? 1 : 0) + (m[QUARTER] || m[MONTH] || m[DATE] ? 1 : 0) + (m[DAYOFYEAR] ? 1 : 0);
+
+    if (numTypes > 1) {
+      error(`Incompatible time units: ${units}`);
+    } // ensure proper sort order
+
+
+    u.sort((a, b) => UNITS[a] - UNITS[b]);
+    return u;
+  }
+
+  const defaultSpecifiers = {
+    [YEAR]: '%Y ',
+    [QUARTER]: 'Q%q ',
+    [MONTH]: '%b ',
+    [DATE]: '%d ',
+    [WEEK]: 'W%U ',
+    [DAY]: '%a ',
+    [DAYOFYEAR]: '%j ',
+    [HOURS]: '%H:00',
+    [MINUTES]: '00:%M',
+    [SECONDS]: ':%S',
+    [MILLISECONDS]: '.%L',
+    [`${YEAR}-${MONTH}`]: '%Y-%m ',
+    [`${YEAR}-${MONTH}-${DATE}`]: '%Y-%m-%d ',
+    [`${HOURS}-${MINUTES}`]: '%H:%M'
+  };
+
+  function timeUnitSpecifier(units, specifiers) {
+    const s = extend$1({}, defaultSpecifiers, specifiers),
+          u = timeUnits(units),
+          n = u.length;
+    let fmt = '',
+        start = 0,
+        end,
+        key;
+
+    for (start = 0; start < n;) {
+      for (end = u.length; end > start; --end) {
+        key = u.slice(start, end).join('-');
+
+        if (s[key] != null) {
+          fmt += s[key];
+          start = end;
+          break;
+        }
+      }
+    }
+
+    return fmt.trim();
+  }
+
+  const t0$1 = new Date();
+
+  function localYear(y) {
+    t0$1.setFullYear(y);
+    t0$1.setMonth(0);
+    t0$1.setDate(1);
+    t0$1.setHours(0, 0, 0, 0);
+    return t0$1;
+  }
+
+  function dayofyear(d) {
+    return localDayOfYear(new Date(d));
+  }
+
+  function week(d) {
+    return localWeekNum(new Date(d));
+  }
+
+  function localDayOfYear(d) {
+    return timeDay.count(localYear(d.getFullYear()) - 1, d);
+  }
+
+  function localWeekNum(d) {
+    return sunday.count(localYear(d.getFullYear()) - 1, d);
+  }
+
+  function localFirst(y) {
+    return localYear(y).getDay();
+  }
+
+  function localDate$1(y, m, d, H, M, S, L) {
+    if (0 <= y && y < 100) {
+      const date = new Date(-1, m, d, H, M, S, L);
+      date.setFullYear(y);
+      return date;
+    }
+
+    return new Date(y, m, d, H, M, S, L);
+  }
+
+  function utcdayofyear(d) {
+    return utcDayOfYear(new Date(d));
+  }
+
+  function utcweek(d) {
+    return utcWeekNum(new Date(d));
+  }
+
+  function utcDayOfYear(d) {
+    const y = Date.UTC(d.getUTCFullYear(), 0, 1);
+    return utcDay$1.count(y - 1, d);
+  }
+
+  function utcWeekNum(d) {
+    const y = Date.UTC(d.getUTCFullYear(), 0, 1);
+    return utcSunday.count(y - 1, d);
+  }
+
+  function utcFirst(y) {
+    t0$1.setTime(Date.UTC(y, 0, 1));
+    return t0$1.getUTCDay();
+  }
+
+  function utcDate$1(y, m, d, H, M, S, L) {
+    if (0 <= y && y < 100) {
+      const date = new Date(Date.UTC(-1, m, d, H, M, S, L));
+      date.setUTCFullYear(d.y);
+      return date;
+    }
+
+    return new Date(Date.UTC(y, m, d, H, M, S, L));
+  }
+
+  function floor(units, step, get, inv, newDate) {
+    const s = step || 1,
+          b = peek$1(units),
+          _ = (unit, p, key) => {
+      key = key || unit;
+      return getUnit(get[key], inv[key], unit === b && s, p);
+    };
+
+    const t = new Date(),
+          u = toSet(units),
+          y = u[YEAR] ? _(YEAR) : constant$4(2012),
+          m = u[MONTH] ? _(MONTH) : u[QUARTER] ? _(QUARTER) : zero$2,
+          d = u[WEEK] && u[DAY] ? _(DAY, 1, WEEK + DAY) : u[WEEK] ? _(WEEK, 1) : u[DAY] ? _(DAY, 1) : u[DATE] ? _(DATE, 1) : u[DAYOFYEAR] ? _(DAYOFYEAR, 1) : one$2,
+          H = u[HOURS] ? _(HOURS) : zero$2,
+          M = u[MINUTES] ? _(MINUTES) : zero$2,
+          S = u[SECONDS] ? _(SECONDS) : zero$2,
+          L = u[MILLISECONDS] ? _(MILLISECONDS) : zero$2;
+    return function (v) {
+      t.setTime(+v);
+      const year = y(t);
+      return newDate(year, m(t), d(t, year), H(t), M(t), S(t), L(t));
+    };
+  }
+
+  function getUnit(f, inv, step, phase) {
+    const u = step <= 1 ? f : phase ? (d, y) => phase + step * Math.floor((f(d, y) - phase) / step) : (d, y) => step * Math.floor(f(d, y) / step);
+    return inv ? (d, y) => inv(u(d, y), y) : u;
+  } // returns the day of the year based on week number, day of week,
+  // and the day of the week for the first day of the year
+
+
+  function weekday(week, day, firstDay) {
+    return day + week * 7 - (firstDay + 6) % 7;
+  } // -- LOCAL TIME --
+
+
+  const localGet = {
+    [YEAR]: d => d.getFullYear(),
+    [QUARTER]: d => Math.floor(d.getMonth() / 3),
+    [MONTH]: d => d.getMonth(),
+    [DATE]: d => d.getDate(),
+    [HOURS]: d => d.getHours(),
+    [MINUTES]: d => d.getMinutes(),
+    [SECONDS]: d => d.getSeconds(),
+    [MILLISECONDS]: d => d.getMilliseconds(),
+    [DAYOFYEAR]: d => localDayOfYear(d),
+    [WEEK]: d => localWeekNum(d),
+    [WEEK + DAY]: (d, y) => weekday(localWeekNum(d), d.getDay(), localFirst(y)),
+    [DAY]: (d, y) => weekday(1, d.getDay(), localFirst(y))
+  };
+  const localInv = {
+    [QUARTER]: q => 3 * q,
+    [WEEK]: (w, y) => weekday(w, 0, localFirst(y))
+  };
+
+  function timeFloor(units, step) {
+    return floor(units, step || 1, localGet, localInv, localDate$1);
+  } // -- UTC TIME --
+
+
+  const utcGet = {
+    [YEAR]: d => d.getUTCFullYear(),
+    [QUARTER]: d => Math.floor(d.getUTCMonth() / 3),
+    [MONTH]: d => d.getUTCMonth(),
+    [DATE]: d => d.getUTCDate(),
+    [HOURS]: d => d.getUTCHours(),
+    [MINUTES]: d => d.getUTCMinutes(),
+    [SECONDS]: d => d.getUTCSeconds(),
+    [MILLISECONDS]: d => d.getUTCMilliseconds(),
+    [DAYOFYEAR]: d => utcDayOfYear(d),
+    [WEEK]: d => utcWeekNum(d),
+    [DAY]: (d, y) => weekday(1, d.getUTCDay(), utcFirst(y)),
+    [WEEK + DAY]: (d, y) => weekday(utcWeekNum(d), d.getUTCDay(), utcFirst(y))
+  };
+  const utcInv = {
+    [QUARTER]: q => 3 * q,
+    [WEEK]: (w, y) => weekday(w, 0, utcFirst(y))
+  };
+
+  function utcFloor(units, step) {
+    return floor(units, step || 1, utcGet, utcInv, utcDate$1);
+  }
+
+  const timeIntervals = {
+    [YEAR]: timeYear,
+    [QUARTER]: timeMonth.every(3),
+    [MONTH]: timeMonth,
+    [WEEK]: sunday,
+    [DATE]: timeDay,
+    [DAY]: timeDay,
+    [DAYOFYEAR]: timeDay,
+    [HOURS]: timeHour,
+    [MINUTES]: timeMinute,
+    [SECONDS]: utcSecond,
+    [MILLISECONDS]: utcMillisecond
+  };
+  const utcIntervals = {
+    [YEAR]: utcYear$1,
+    [QUARTER]: utcMonth$1.every(3),
+    [MONTH]: utcMonth$1,
+    [WEEK]: utcSunday,
+    [DATE]: utcDay$1,
+    [DAY]: utcDay$1,
+    [DAYOFYEAR]: utcDay$1,
+    [HOURS]: utcHour$1,
+    [MINUTES]: utcMinute$1,
+    [SECONDS]: utcSecond,
+    [MILLISECONDS]: utcMillisecond
+  };
+
+  function timeInterval(unit) {
+    return timeIntervals[unit];
+  }
+
+  function utcInterval(unit) {
+    return utcIntervals[unit];
+  }
+
+  function offset$3(ival, date, step) {
+    return ival ? ival.offset(date, step) : undefined;
+  }
+
+  function timeOffset(unit, date, step) {
+    return offset$3(timeInterval(unit), date, step);
+  }
+
+  function utcOffset(unit, date, step) {
+    return offset$3(utcInterval(unit), date, step);
+  }
+
+  function sequence$1(ival, start, stop, step) {
+    return ival ? ival.range(start, stop, step) : undefined;
+  }
+
+  function timeSequence(unit, start, stop, step) {
+    return sequence$1(timeInterval(unit), start, stop, step);
+  }
+
+  function utcSequence(unit, start, stop, step) {
+    return sequence$1(utcInterval(unit), start, stop, step);
+  }
+
+  const durationSecond = 1000,
+        durationMinute = durationSecond * 60,
+        durationHour = durationMinute * 60,
+        durationDay = durationHour * 24,
+        durationWeek = durationDay * 7,
+        durationMonth = durationDay * 30,
+        durationYear = durationDay * 365;
+  const Milli = [YEAR, MONTH, DATE, HOURS, MINUTES, SECONDS, MILLISECONDS],
+        Seconds = Milli.slice(0, -1),
+        Minutes = Seconds.slice(0, -1),
+        Hours = Minutes.slice(0, -1),
+        Day = Hours.slice(0, -1),
+        Week = [YEAR, WEEK],
+        Month = [YEAR, MONTH],
+        Year = [YEAR];
+  const intervals = [[Seconds, 1, durationSecond], [Seconds, 5, 5 * durationSecond], [Seconds, 15, 15 * durationSecond], [Seconds, 30, 30 * durationSecond], [Minutes, 1, durationMinute], [Minutes, 5, 5 * durationMinute], [Minutes, 15, 15 * durationMinute], [Minutes, 30, 30 * durationMinute], [Hours, 1, durationHour], [Hours, 3, 3 * durationHour], [Hours, 6, 6 * durationHour], [Hours, 12, 12 * durationHour], [Day, 1, durationDay], [Week, 1, durationWeek], [Month, 1, durationMonth], [Month, 3, 3 * durationMonth], [Year, 1, durationYear]];
+
+  function bin$1(opt) {
+    const ext = opt.extent,
+          max = opt.maxbins || 40,
+          target = Math.abs(span(ext)) / max;
+    let i = bisector$1(i => i[2]).right(intervals, target),
+        units,
+        step;
+
+    if (i === intervals.length) {
+      units = Year, step = tickStep(ext[0] / durationYear, ext[1] / durationYear, max);
+    } else if (i) {
+      i = intervals[target / intervals[i - 1][2] < intervals[i][2] / target ? i - 1 : i];
+      units = i[0];
+      step = i[1];
+    } else {
+      units = Milli;
+      step = Math.max(tickStep(ext[0], ext[1], max), 1);
+    }
+
+    return {
+      units,
+      step
+    };
+  }
+
+  function localDate(d) {
+    if (0 <= d.y && d.y < 100) {
+      var date = new Date(-1, d.m, d.d, d.H, d.M, d.S, d.L);
+      date.setFullYear(d.y);
+      return date;
+    }
+
+    return new Date(d.y, d.m, d.d, d.H, d.M, d.S, d.L);
+  }
+
+  function utcDate(d) {
+    if (0 <= d.y && d.y < 100) {
+      var date = new Date(Date.UTC(-1, d.m, d.d, d.H, d.M, d.S, d.L));
+      date.setUTCFullYear(d.y);
+      return date;
+    }
+
+    return new Date(Date.UTC(d.y, d.m, d.d, d.H, d.M, d.S, d.L));
+  }
+
+  function newDate(y, m, d) {
+    return {
+      y: y,
+      m: m,
+      d: d,
+      H: 0,
+      M: 0,
+      S: 0,
+      L: 0
+    };
+  }
+
+  function formatLocale(locale) {
+    var locale_dateTime = locale.dateTime,
+        locale_date = locale.date,
+        locale_time = locale.time,
+        locale_periods = locale.periods,
+        locale_weekdays = locale.days,
+        locale_shortWeekdays = locale.shortDays,
+        locale_months = locale.months,
+        locale_shortMonths = locale.shortMonths;
+    var periodRe = formatRe(locale_periods),
+        periodLookup = formatLookup(locale_periods),
+        weekdayRe = formatRe(locale_weekdays),
+        weekdayLookup = formatLookup(locale_weekdays),
+        shortWeekdayRe = formatRe(locale_shortWeekdays),
+        shortWeekdayLookup = formatLookup(locale_shortWeekdays),
+        monthRe = formatRe(locale_months),
+        monthLookup = formatLookup(locale_months),
+        shortMonthRe = formatRe(locale_shortMonths),
+        shortMonthLookup = formatLookup(locale_shortMonths);
+    var formats = {
+      "a": formatShortWeekday,
+      "A": formatWeekday,
+      "b": formatShortMonth,
+      "B": formatMonth,
+      "c": null,
+      "d": formatDayOfMonth,
+      "e": formatDayOfMonth,
+      "f": formatMicroseconds,
+      "g": formatYearISO,
+      "G": formatFullYearISO,
+      "H": formatHour24,
+      "I": formatHour12,
+      "j": formatDayOfYear,
+      "L": formatMilliseconds,
+      "m": formatMonthNumber,
+      "M": formatMinutes,
+      "p": formatPeriod,
+      "q": formatQuarter,
+      "Q": formatUnixTimestamp,
+      "s": formatUnixTimestampSeconds,
+      "S": formatSeconds,
+      "u": formatWeekdayNumberMonday,
+      "U": formatWeekNumberSunday,
+      "V": formatWeekNumberISO,
+      "w": formatWeekdayNumberSunday,
+      "W": formatWeekNumberMonday,
+      "x": null,
+      "X": null,
+      "y": formatYear,
+      "Y": formatFullYear,
+      "Z": formatZone,
+      "%": formatLiteralPercent
+    };
+    var utcFormats = {
+      "a": formatUTCShortWeekday,
+      "A": formatUTCWeekday,
+      "b": formatUTCShortMonth,
+      "B": formatUTCMonth,
+      "c": null,
+      "d": formatUTCDayOfMonth,
+      "e": formatUTCDayOfMonth,
+      "f": formatUTCMicroseconds,
+      "g": formatUTCYearISO,
+      "G": formatUTCFullYearISO,
+      "H": formatUTCHour24,
+      "I": formatUTCHour12,
+      "j": formatUTCDayOfYear,
+      "L": formatUTCMilliseconds,
+      "m": formatUTCMonthNumber,
+      "M": formatUTCMinutes,
+      "p": formatUTCPeriod,
+      "q": formatUTCQuarter,
+      "Q": formatUnixTimestamp,
+      "s": formatUnixTimestampSeconds,
+      "S": formatUTCSeconds,
+      "u": formatUTCWeekdayNumberMonday,
+      "U": formatUTCWeekNumberSunday,
+      "V": formatUTCWeekNumberISO,
+      "w": formatUTCWeekdayNumberSunday,
+      "W": formatUTCWeekNumberMonday,
+      "x": null,
+      "X": null,
+      "y": formatUTCYear,
+      "Y": formatUTCFullYear,
+      "Z": formatUTCZone,
+      "%": formatLiteralPercent
+    };
+    var parses = {
+      "a": parseShortWeekday,
+      "A": parseWeekday,
+      "b": parseShortMonth,
+      "B": parseMonth,
+      "c": parseLocaleDateTime,
+      "d": parseDayOfMonth,
+      "e": parseDayOfMonth,
+      "f": parseMicroseconds,
+      "g": parseYear,
+      "G": parseFullYear,
+      "H": parseHour24,
+      "I": parseHour24,
+      "j": parseDayOfYear,
+      "L": parseMilliseconds,
+      "m": parseMonthNumber,
+      "M": parseMinutes,
+      "p": parsePeriod,
+      "q": parseQuarter,
+      "Q": parseUnixTimestamp,
+      "s": parseUnixTimestampSeconds,
+      "S": parseSeconds,
+      "u": parseWeekdayNumberMonday,
+      "U": parseWeekNumberSunday,
+      "V": parseWeekNumberISO,
+      "w": parseWeekdayNumberSunday,
+      "W": parseWeekNumberMonday,
+      "x": parseLocaleDate,
+      "X": parseLocaleTime,
+      "y": parseYear,
+      "Y": parseFullYear,
+      "Z": parseZone,
+      "%": parseLiteralPercent
+    }; // These recursive directive definitions must be deferred.
+
+    formats.x = newFormat(locale_date, formats);
+    formats.X = newFormat(locale_time, formats);
+    formats.c = newFormat(locale_dateTime, formats);
+    utcFormats.x = newFormat(locale_date, utcFormats);
+    utcFormats.X = newFormat(locale_time, utcFormats);
+    utcFormats.c = newFormat(locale_dateTime, utcFormats);
+
+    function newFormat(specifier, formats) {
+      return function (date) {
+        var string = [],
+            i = -1,
+            j = 0,
+            n = specifier.length,
+            c,
+            pad,
+            format;
+        if (!(date instanceof Date)) date = new Date(+date);
+
+        while (++i < n) {
+          if (specifier.charCodeAt(i) === 37) {
+            string.push(specifier.slice(j, i));
+            if ((pad = pads[c = specifier.charAt(++i)]) != null) c = specifier.charAt(++i);else pad = c === "e" ? " " : "0";
+            if (format = formats[c]) c = format(date, pad);
+            string.push(c);
+            j = i + 1;
+          }
+        }
+
+        string.push(specifier.slice(j, i));
+        return string.join("");
+      };
+    }
+
+    function newParse(specifier, Z) {
+      return function (string) {
+        var d = newDate(1900, undefined, 1),
+            i = parseSpecifier(d, specifier, string += "", 0),
+            week,
+            day;
+        if (i != string.length) return null; // If a UNIX timestamp is specified, return it.
+
+        if ("Q" in d) return new Date(d.Q);
+        if ("s" in d) return new Date(d.s * 1000 + ("L" in d ? d.L : 0)); // If this is utcParse, never use the local timezone.
+
+        if (Z && !("Z" in d)) d.Z = 0; // The am-pm flag is 0 for AM, and 1 for PM.
+
+        if ("p" in d) d.H = d.H % 12 + d.p * 12; // If the month was not specified, inherit from the quarter.
+
+        if (d.m === undefined) d.m = "q" in d ? d.q : 0; // Convert day-of-week and week-of-year to day-of-year.
+
+        if ("V" in d) {
+          if (d.V < 1 || d.V > 53) return null;
+          if (!("w" in d)) d.w = 1;
+
+          if ("Z" in d) {
+            week = utcDate(newDate(d.y, 0, 1)), day = week.getUTCDay();
+            week = day > 4 || day === 0 ? utcMonday.ceil(week) : utcMonday(week);
+            week = utcDay$1.offset(week, (d.V - 1) * 7);
+            d.y = week.getUTCFullYear();
+            d.m = week.getUTCMonth();
+            d.d = week.getUTCDate() + (d.w + 6) % 7;
+          } else {
+            week = localDate(newDate(d.y, 0, 1)), day = week.getDay();
+            week = day > 4 || day === 0 ? monday.ceil(week) : monday(week);
+            week = timeDay.offset(week, (d.V - 1) * 7);
+            d.y = week.getFullYear();
+            d.m = week.getMonth();
+            d.d = week.getDate() + (d.w + 6) % 7;
+          }
+        } else if ("W" in d || "U" in d) {
+          if (!("w" in d)) d.w = "u" in d ? d.u % 7 : "W" in d ? 1 : 0;
+          day = "Z" in d ? utcDate(newDate(d.y, 0, 1)).getUTCDay() : localDate(newDate(d.y, 0, 1)).getDay();
+          d.m = 0;
+          d.d = "W" in d ? (d.w + 6) % 7 + d.W * 7 - (day + 5) % 7 : d.w + d.U * 7 - (day + 6) % 7;
+        } // If a time zone is specified, all fields are interpreted as UTC and then
+        // offset according to the specified time zone.
+
+
+        if ("Z" in d) {
+          d.H += d.Z / 100 | 0;
+          d.M += d.Z % 100;
+          return utcDate(d);
+        } // Otherwise, all fields are in local time.
+
+
+        return localDate(d);
+      };
+    }
+
+    function parseSpecifier(d, specifier, string, j) {
+      var i = 0,
+          n = specifier.length,
+          m = string.length,
+          c,
+          parse;
+
+      while (i < n) {
+        if (j >= m) return -1;
+        c = specifier.charCodeAt(i++);
+
+        if (c === 37) {
+          c = specifier.charAt(i++);
+          parse = parses[c in pads ? specifier.charAt(i++) : c];
+          if (!parse || (j = parse(d, string, j)) < 0) return -1;
+        } else if (c != string.charCodeAt(j++)) {
+          return -1;
+        }
+      }
+
+      return j;
+    }
+
+    function parsePeriod(d, string, i) {
+      var n = periodRe.exec(string.slice(i));
+      return n ? (d.p = periodLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+
+    function parseShortWeekday(d, string, i) {
+      var n = shortWeekdayRe.exec(string.slice(i));
+      return n ? (d.w = shortWeekdayLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+
+    function parseWeekday(d, string, i) {
+      var n = weekdayRe.exec(string.slice(i));
+      return n ? (d.w = weekdayLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+
+    function parseShortMonth(d, string, i) {
+      var n = shortMonthRe.exec(string.slice(i));
+      return n ? (d.m = shortMonthLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+
+    function parseMonth(d, string, i) {
+      var n = monthRe.exec(string.slice(i));
+      return n ? (d.m = monthLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+
+    function parseLocaleDateTime(d, string, i) {
+      return parseSpecifier(d, locale_dateTime, string, i);
+    }
+
+    function parseLocaleDate(d, string, i) {
+      return parseSpecifier(d, locale_date, string, i);
+    }
+
+    function parseLocaleTime(d, string, i) {
+      return parseSpecifier(d, locale_time, string, i);
+    }
+
+    function formatShortWeekday(d) {
+      return locale_shortWeekdays[d.getDay()];
+    }
+
+    function formatWeekday(d) {
+      return locale_weekdays[d.getDay()];
+    }
+
+    function formatShortMonth(d) {
+      return locale_shortMonths[d.getMonth()];
+    }
+
+    function formatMonth(d) {
+      return locale_months[d.getMonth()];
+    }
+
+    function formatPeriod(d) {
+      return locale_periods[+(d.getHours() >= 12)];
+    }
+
+    function formatQuarter(d) {
+      return 1 + ~~(d.getMonth() / 3);
+    }
+
+    function formatUTCShortWeekday(d) {
+      return locale_shortWeekdays[d.getUTCDay()];
+    }
+
+    function formatUTCWeekday(d) {
+      return locale_weekdays[d.getUTCDay()];
+    }
+
+    function formatUTCShortMonth(d) {
+      return locale_shortMonths[d.getUTCMonth()];
+    }
+
+    function formatUTCMonth(d) {
+      return locale_months[d.getUTCMonth()];
+    }
+
+    function formatUTCPeriod(d) {
+      return locale_periods[+(d.getUTCHours() >= 12)];
+    }
+
+    function formatUTCQuarter(d) {
+      return 1 + ~~(d.getUTCMonth() / 3);
+    }
+
+    return {
+      format: function (specifier) {
+        var f = newFormat(specifier += "", formats);
+
+        f.toString = function () {
+          return specifier;
+        };
+
+        return f;
+      },
+      parse: function (specifier) {
+        var p = newParse(specifier += "", false);
+
+        p.toString = function () {
+          return specifier;
+        };
+
+        return p;
+      },
+      utcFormat: function (specifier) {
+        var f = newFormat(specifier += "", utcFormats);
+
+        f.toString = function () {
+          return specifier;
+        };
+
+        return f;
+      },
+      utcParse: function (specifier) {
+        var p = newParse(specifier += "", true);
+
+        p.toString = function () {
+          return specifier;
+        };
+
+        return p;
+      }
+    };
+  }
+  var pads = {
+    "-": "",
+    "_": " ",
+    "0": "0"
+  },
+      numberRe = /^\s*\d+/,
+      // note: ignores next directive
+  percentRe = /^%/,
+      requoteRe = /[\\^$*+?|[\]().{}]/g;
+
+  function pad(value, fill, width) {
+    var sign = value < 0 ? "-" : "",
+        string = (sign ? -value : value) + "",
+        length = string.length;
+    return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string);
+  }
+
+  function requote(s) {
+    return s.replace(requoteRe, "\\$&");
+  }
+
+  function formatRe(names) {
+    return new RegExp("^(?:" + names.map(requote).join("|") + ")", "i");
+  }
+
+  function formatLookup(names) {
+    return new Map(names.map((name, i) => [name.toLowerCase(), i]));
+  }
+
+  function parseWeekdayNumberSunday(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 1));
+    return n ? (d.w = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseWeekdayNumberMonday(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 1));
+    return n ? (d.u = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseWeekNumberSunday(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 2));
+    return n ? (d.U = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseWeekNumberISO(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 2));
+    return n ? (d.V = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseWeekNumberMonday(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 2));
+    return n ? (d.W = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseFullYear(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 4));
+    return n ? (d.y = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseYear(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 2));
+    return n ? (d.y = +n[0] + (+n[0] > 68 ? 1900 : 2000), i + n[0].length) : -1;
+  }
+
+  function parseZone(d, string, i) {
+    var n = /^(Z)|([+-]\d\d)(?::?(\d\d))?/.exec(string.slice(i, i + 6));
+    return n ? (d.Z = n[1] ? 0 : -(n[2] + (n[3] || "00")), i + n[0].length) : -1;
+  }
+
+  function parseQuarter(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 1));
+    return n ? (d.q = n[0] * 3 - 3, i + n[0].length) : -1;
+  }
+
+  function parseMonthNumber(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 2));
+    return n ? (d.m = n[0] - 1, i + n[0].length) : -1;
+  }
+
+  function parseDayOfMonth(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 2));
+    return n ? (d.d = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseDayOfYear(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 3));
+    return n ? (d.m = 0, d.d = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseHour24(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 2));
+    return n ? (d.H = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseMinutes(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 2));
+    return n ? (d.M = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseSeconds(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 2));
+    return n ? (d.S = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseMilliseconds(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 3));
+    return n ? (d.L = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseMicroseconds(d, string, i) {
+    var n = numberRe.exec(string.slice(i, i + 6));
+    return n ? (d.L = Math.floor(n[0] / 1000), i + n[0].length) : -1;
+  }
+
+  function parseLiteralPercent(d, string, i) {
+    var n = percentRe.exec(string.slice(i, i + 1));
+    return n ? i + n[0].length : -1;
+  }
+
+  function parseUnixTimestamp(d, string, i) {
+    var n = numberRe.exec(string.slice(i));
+    return n ? (d.Q = +n[0], i + n[0].length) : -1;
+  }
+
+  function parseUnixTimestampSeconds(d, string, i) {
+    var n = numberRe.exec(string.slice(i));
+    return n ? (d.s = +n[0], i + n[0].length) : -1;
+  }
+
+  function formatDayOfMonth(d, p) {
+    return pad(d.getDate(), p, 2);
+  }
+
+  function formatHour24(d, p) {
+    return pad(d.getHours(), p, 2);
+  }
+
+  function formatHour12(d, p) {
+    return pad(d.getHours() % 12 || 12, p, 2);
+  }
+
+  function formatDayOfYear(d, p) {
+    return pad(1 + timeDay.count(timeYear(d), d), p, 3);
+  }
+
+  function formatMilliseconds(d, p) {
+    return pad(d.getMilliseconds(), p, 3);
+  }
+
+  function formatMicroseconds(d, p) {
+    return formatMilliseconds(d, p) + "000";
+  }
+
+  function formatMonthNumber(d, p) {
+    return pad(d.getMonth() + 1, p, 2);
+  }
+
+  function formatMinutes(d, p) {
+    return pad(d.getMinutes(), p, 2);
+  }
+
+  function formatSeconds(d, p) {
+    return pad(d.getSeconds(), p, 2);
+  }
+
+  function formatWeekdayNumberMonday(d) {
+    var day = d.getDay();
+    return day === 0 ? 7 : day;
+  }
+
+  function formatWeekNumberSunday(d, p) {
+    return pad(sunday.count(timeYear(d) - 1, d), p, 2);
+  }
+
+  function dISO(d) {
+    var day = d.getDay();
+    return day >= 4 || day === 0 ? thursday(d) : thursday.ceil(d);
+  }
+
+  function formatWeekNumberISO(d, p) {
+    d = dISO(d);
+    return pad(thursday.count(timeYear(d), d) + (timeYear(d).getDay() === 4), p, 2);
+  }
+
+  function formatWeekdayNumberSunday(d) {
+    return d.getDay();
+  }
+
+  function formatWeekNumberMonday(d, p) {
+    return pad(monday.count(timeYear(d) - 1, d), p, 2);
+  }
+
+  function formatYear(d, p) {
+    return pad(d.getFullYear() % 100, p, 2);
+  }
+
+  function formatYearISO(d, p) {
+    d = dISO(d);
+    return pad(d.getFullYear() % 100, p, 2);
+  }
+
+  function formatFullYear(d, p) {
+    return pad(d.getFullYear() % 10000, p, 4);
+  }
+
+  function formatFullYearISO(d, p) {
+    var day = d.getDay();
+    d = day >= 4 || day === 0 ? thursday(d) : thursday.ceil(d);
+    return pad(d.getFullYear() % 10000, p, 4);
+  }
+
+  function formatZone(d) {
+    var z = d.getTimezoneOffset();
+    return (z > 0 ? "-" : (z *= -1, "+")) + pad(z / 60 | 0, "0", 2) + pad(z % 60, "0", 2);
+  }
+
+  function formatUTCDayOfMonth(d, p) {
+    return pad(d.getUTCDate(), p, 2);
+  }
+
+  function formatUTCHour24(d, p) {
+    return pad(d.getUTCHours(), p, 2);
+  }
+
+  function formatUTCHour12(d, p) {
+    return pad(d.getUTCHours() % 12 || 12, p, 2);
+  }
+
+  function formatUTCDayOfYear(d, p) {
+    return pad(1 + utcDay$1.count(utcYear$1(d), d), p, 3);
+  }
+
+  function formatUTCMilliseconds(d, p) {
+    return pad(d.getUTCMilliseconds(), p, 3);
+  }
+
+  function formatUTCMicroseconds(d, p) {
+    return formatUTCMilliseconds(d, p) + "000";
+  }
+
+  function formatUTCMonthNumber(d, p) {
+    return pad(d.getUTCMonth() + 1, p, 2);
+  }
+
+  function formatUTCMinutes(d, p) {
+    return pad(d.getUTCMinutes(), p, 2);
+  }
+
+  function formatUTCSeconds(d, p) {
+    return pad(d.getUTCSeconds(), p, 2);
+  }
+
+  function formatUTCWeekdayNumberMonday(d) {
+    var dow = d.getUTCDay();
+    return dow === 0 ? 7 : dow;
+  }
+
+  function formatUTCWeekNumberSunday(d, p) {
+    return pad(utcSunday.count(utcYear$1(d) - 1, d), p, 2);
+  }
+
+  function UTCdISO(d) {
+    var day = d.getUTCDay();
+    return day >= 4 || day === 0 ? utcThursday(d) : utcThursday.ceil(d);
+  }
+
+  function formatUTCWeekNumberISO(d, p) {
+    d = UTCdISO(d);
+    return pad(utcThursday.count(utcYear$1(d), d) + (utcYear$1(d).getUTCDay() === 4), p, 2);
+  }
+
+  function formatUTCWeekdayNumberSunday(d) {
+    return d.getUTCDay();
+  }
+
+  function formatUTCWeekNumberMonday(d, p) {
+    return pad(utcMonday.count(utcYear$1(d) - 1, d), p, 2);
+  }
+
+  function formatUTCYear(d, p) {
+    return pad(d.getUTCFullYear() % 100, p, 2);
+  }
+
+  function formatUTCYearISO(d, p) {
+    d = UTCdISO(d);
+    return pad(d.getUTCFullYear() % 100, p, 2);
+  }
+
+  function formatUTCFullYear(d, p) {
+    return pad(d.getUTCFullYear() % 10000, p, 4);
+  }
+
+  function formatUTCFullYearISO(d, p) {
+    var day = d.getUTCDay();
+    d = day >= 4 || day === 0 ? utcThursday(d) : utcThursday.ceil(d);
+    return pad(d.getUTCFullYear() % 10000, p, 4);
+  }
+
+  function formatUTCZone() {
+    return "+0000";
+  }
+
+  function formatLiteralPercent() {
+    return "%";
+  }
+
+  function formatUnixTimestamp(d) {
+    return +d;
+  }
+
+  function formatUnixTimestampSeconds(d) {
+    return Math.floor(+d / 1000);
+  }
+
+  var locale$1;
+  var timeFormat$1;
+  var timeParse$1;
+  var utcFormat$1;
+  var utcParse$1;
+  defaultLocale$1({
+    dateTime: "%x, %X",
+    date: "%-m/%-d/%Y",
+    time: "%-I:%M:%S %p",
+    periods: ["AM", "PM"],
+    days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
+    shortDays: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
+    months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
+    shortMonths: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
+  });
+  function defaultLocale$1(definition) {
+    locale$1 = formatLocale(definition);
+    timeFormat$1 = locale$1.format;
+    timeParse$1 = locale$1.parse;
+    utcFormat$1 = locale$1.utcFormat;
+    utcParse$1 = locale$1.utcParse;
+    return locale$1;
+  }
+
+  function memoize(method) {
+    const cache = {};
+    return spec => cache[spec] || (cache[spec] = method(spec));
+  }
+
+  function trimZeroes(numberFormat, decimalChar) {
+    return x => {
+      const str = numberFormat(x),
+            dec = str.indexOf(decimalChar);
+      if (dec < 0) return str;
+      let idx = rightmostDigit(str, dec);
+      const end = idx < str.length ? str.slice(idx) : '';
+
+      while (--idx > dec) if (str[idx] !== '0') {
+        ++idx;
+        break;
+      }
+
+      return str.slice(0, idx) + end;
+    };
+  }
+
+  function rightmostDigit(str, dec) {
+    let i = str.lastIndexOf('e'),
+        c;
+    if (i > 0) return i;
+
+    for (i = str.length; --i > dec;) {
+      c = str.charCodeAt(i);
+      if (c >= 48 && c <= 57) return i + 1; // is digit
+    }
+  }
+
+  function numberLocale(locale) {
+    const format = memoize(locale.format),
+          formatPrefix = locale.formatPrefix;
+    return {
+      format,
+      formatPrefix,
+
+      formatFloat(spec) {
+        const s = formatSpecifier(spec || ',');
+
+        if (s.precision == null) {
+          s.precision = 12;
+
+          switch (s.type) {
+            case '%':
+              s.precision -= 2;
+              break;
+
+            case 'e':
+              s.precision -= 1;
+              break;
+          }
+
+          return trimZeroes(format(s), // number format
+          format('.1f')(1)[1] // decimal point character
+          );
+        } else {
+          return format(s);
+        }
+      },
+
+      formatSpan(start, stop, count, specifier) {
+        specifier = formatSpecifier(specifier == null ? ',f' : specifier);
+        const step = tickStep(start, stop, count),
+              value = Math.max(Math.abs(start), Math.abs(stop));
+        let precision;
+
+        if (specifier.precision == null) {
+          switch (specifier.type) {
+            case 's':
+              {
+                if (!isNaN(precision = precisionPrefix(step, value))) {
+                  specifier.precision = precision;
+                }
+
+                return formatPrefix(specifier, value);
+              }
+
+            case '':
+            case 'e':
+            case 'g':
+            case 'p':
+            case 'r':
+              {
+                if (!isNaN(precision = precisionRound(step, value))) {
+                  specifier.precision = precision - (specifier.type === 'e');
+                }
+
+                break;
+              }
+
+            case 'f':
+            case '%':
+              {
+                if (!isNaN(precision = precisionFixed(step))) {
+                  specifier.precision = precision - (specifier.type === '%') * 2;
+                }
+
+                break;
+              }
+          }
+        }
+
+        return format(specifier);
+      }
+
+    };
+  }
+
+  let defaultNumberLocale;
+  resetNumberFormatDefaultLocale();
+
+  function resetNumberFormatDefaultLocale() {
+    return defaultNumberLocale = numberLocale({
+      format: format$3,
+      formatPrefix: formatPrefix
+    });
+  }
+
+  function numberFormatLocale(definition) {
+    return numberLocale(formatLocale$1(definition));
+  }
+
+  function numberFormatDefaultLocale(definition) {
+    return arguments.length ? defaultNumberLocale = numberFormatLocale(definition) : defaultNumberLocale;
+  }
+
+  function timeMultiFormat(format, interval, spec) {
+    spec = spec || {};
+
+    if (!isObject(spec)) {
+      error(`Invalid time multi-format specifier: ${spec}`);
+    }
+
+    const second = interval(SECONDS),
+          minute = interval(MINUTES),
+          hour = interval(HOURS),
+          day = interval(DATE),
+          week = interval(WEEK),
+          month = interval(MONTH),
+          quarter = interval(QUARTER),
+          year = interval(YEAR),
+          L = format(spec[MILLISECONDS] || '.%L'),
+          S = format(spec[SECONDS] || ':%S'),
+          M = format(spec[MINUTES] || '%I:%M'),
+          H = format(spec[HOURS] || '%I %p'),
+          d = format(spec[DATE] || spec[DAY] || '%a %d'),
+          w = format(spec[WEEK] || '%b %d'),
+          m = format(spec[MONTH] || '%B'),
+          q = format(spec[QUARTER] || '%B'),
+          y = format(spec[YEAR] || '%Y');
+    return date => (second(date) < date ? L : minute(date) < date ? S : hour(date) < date ? M : day(date) < date ? H : month(date) < date ? week(date) < date ? d : w : year(date) < date ? quarter(date) < date ? m : q : y)(date);
+  }
+
+  function timeLocale(locale) {
+    const timeFormat = memoize(locale.format),
+          utcFormat = memoize(locale.utcFormat);
+    return {
+      timeFormat: spec => isString(spec) ? timeFormat(spec) : timeMultiFormat(timeFormat, timeInterval, spec),
+      utcFormat: spec => isString(spec) ? utcFormat(spec) : timeMultiFormat(utcFormat, utcInterval, spec),
+      timeParse: memoize(locale.parse),
+      utcParse: memoize(locale.utcParse)
+    };
+  }
+
+  let defaultTimeLocale;
+  resetTimeFormatDefaultLocale();
+
+  function resetTimeFormatDefaultLocale() {
+    return defaultTimeLocale = timeLocale({
+      format: timeFormat$1,
+      parse: timeParse$1,
+      utcFormat: utcFormat$1,
+      utcParse: utcParse$1
+    });
+  }
+
+  function timeFormatLocale(definition) {
+    return timeLocale(formatLocale(definition));
+  }
+
+  function timeFormatDefaultLocale(definition) {
+    return arguments.length ? defaultTimeLocale = timeFormatLocale(definition) : defaultTimeLocale;
+  }
+
+  const createLocale = (number, time) => extend$1({}, number, time);
+
+  function locale(numberSpec, timeSpec) {
+    const number = numberSpec ? numberFormatLocale(numberSpec) : numberFormatDefaultLocale();
+    const time = timeSpec ? timeFormatLocale(timeSpec) : timeFormatDefaultLocale();
+    return createLocale(number, time);
+  }
+
+  function defaultLocale(numberSpec, timeSpec) {
+    const args = arguments.length;
+
+    if (args && args !== 2) {
+      error('defaultLocale expects either zero or two arguments.');
+    }
+
+    return args ? createLocale(numberFormatDefaultLocale(numberSpec), timeFormatDefaultLocale(timeSpec)) : createLocale(numberFormatDefaultLocale(), timeFormatDefaultLocale());
+  }
+
+  function resetDefaultLocale() {
+    resetNumberFormatDefaultLocale();
+    resetTimeFormatDefaultLocale();
+    return defaultLocale();
+  }
+
+  const protocol_re = /^(data:|([A-Za-z]+:)?\/\/)/; // Matches allowed URIs. From https://github.com/cure53/DOMPurify/blob/master/src/regexp.js with added file://
+
+  const allowed_re = /^(?:(?:(?:f|ht)tps?|mailto|tel|callto|cid|xmpp|file|data):|[^a-z]|[a-z+.\-]+(?:[^a-z+.\-:]|$))/i; // eslint-disable-line no-useless-escape
+
+  const whitespace_re = /[\u0000-\u0020\u00A0\u1680\u180E\u2000-\u2029\u205f\u3000]/g; // eslint-disable-line no-control-regex
+  // Special treatment in node.js for the file: protocol
+
+  const fileProtocol = 'file://';
+  /**
+   * Factory for a loader constructor that provides methods for requesting
+   * files from either the network or disk, and for sanitizing request URIs.
+   * @param {function} fetch - The Fetch API for HTTP network requests.
+   *   If null or undefined, HTTP loading will be disabled.
+   * @param {object} fs - The file system interface for file loading.
+   *   If null or undefined, local file loading will be disabled.
+   * @return {function} A loader constructor with the following signature:
+   *   param {object} [options] - Optional default loading options to use.
+   *   return {object} - A new loader instance.
+   */
+
+  function loaderFactory(fetch, fs) {
+    return options => ({
+      options: options || {},
+      sanitize: sanitize,
+      load: load$1,
+      fileAccess: !!fs,
+      file: fileLoader(fs),
+      http: httpLoader(fetch)
+    });
+  }
+  /**
+   * Load an external resource, typically either from the web or from the local
+   * filesystem. This function uses {@link sanitize} to first sanitize the uri,
+   * then calls either {@link http} (for web requests) or {@link file} (for
+   * filesystem loading).
+   * @param {string} uri - The resource indicator (e.g., URL or filename).
+   * @param {object} [options] - Optional loading options. These options will
+   *   override any existing default options.
+   * @return {Promise} - A promise that resolves to the loaded content.
+   */
+
+
+  async function load$1(uri, options) {
+    const opt = await this.sanitize(uri, options),
+          url = opt.href;
+    return opt.localFile ? this.file(url) : this.http(url, options);
+  }
+  /**
+   * URI sanitizer function.
+   * @param {string} uri - The uri (url or filename) to check.
+   * @param {object} options - An options hash.
+   * @return {Promise} - A promise that resolves to an object containing
+   *  sanitized uri data, or rejects it the input uri is deemed invalid.
+   *  The properties of the resolved object are assumed to be
+   *  valid attributes for an HTML 'a' tag. The sanitized uri *must* be
+   *  provided by the 'href' property of the returned object.
+   */
+
+
+  async function sanitize(uri, options) {
+    options = extend$1({}, this.options, options);
+    const fileAccess = this.fileAccess,
+          result = {
+      href: null
+    };
+    let isFile, loadFile, base;
+    const isAllowed = allowed_re.test(uri.replace(whitespace_re, ''));
+
+    if (uri == null || typeof uri !== 'string' || !isAllowed) {
+      error('Sanitize failure, invalid URI: ' + $(uri));
+    }
+
+    const hasProtocol = protocol_re.test(uri); // if relative url (no protocol/host), prepend baseURL
+
+    if ((base = options.baseURL) && !hasProtocol) {
+      // Ensure that there is a slash between the baseURL (e.g. hostname) and url
+      if (!uri.startsWith('/') && !base.endsWith('/')) {
+        uri = '/' + uri;
+      }
+
+      uri = base + uri;
+    } // should we load from file system?
+
+
+    loadFile = (isFile = uri.startsWith(fileProtocol)) || options.mode === 'file' || options.mode !== 'http' && !hasProtocol && fileAccess;
+
+    if (isFile) {
+      // strip file protocol
+      uri = uri.slice(fileProtocol.length);
+    } else if (uri.startsWith('//')) {
+      if (options.defaultProtocol === 'file') {
+        // if is file, strip protocol and set loadFile flag
+        uri = uri.slice(2);
+        loadFile = true;
+      } else {
+        // if relative protocol (starts with '//'), prepend default protocol
+        uri = (options.defaultProtocol || 'http') + ':' + uri;
+      }
+    } // set non-enumerable mode flag to indicate local file load
+
+
+    Object.defineProperty(result, 'localFile', {
+      value: !!loadFile
+    }); // set uri
+
+    result.href = uri; // set default result target, if specified
+
+    if (options.target) {
+      result.target = options.target + '';
+    } // set default result rel, if specified (#1542)
+
+
+    if (options.rel) {
+      result.rel = options.rel + '';
+    } // provide control over cross-origin image handling (#2238)
+    // https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image
+
+
+    if (options.context === 'image' && options.crossOrigin) {
+      result.crossOrigin = options.crossOrigin + '';
+    } // return
+
+
+    return result;
+  }
+  /**
+   * File system loader factory.
+   * @param {object} fs - The file system interface.
+   * @return {function} - A file loader with the following signature:
+   *   param {string} filename - The file system path to load.
+   *   param {string} filename - The file system path to load.
+   *   return {Promise} A promise that resolves to the file contents.
+   */
+
+
+  function fileLoader(fs) {
+    return fs ? filename => new Promise((accept, reject) => {
+      fs.readFile(filename, (error, data) => {
+        if (error) reject(error);else accept(data);
+      });
+    }) : fileReject;
+  }
+  /**
+   * Default file system loader that simply rejects.
+   */
+
+
+  async function fileReject() {
+    error('No file system access.');
+  }
+  /**
+   * HTTP request handler factory.
+   * @param {function} fetch - The Fetch API method.
+   * @return {function} - An http loader with the following signature:
+   *   param {string} url - The url to request.
+   *   param {object} options - An options hash.
+   *   return {Promise} - A promise that resolves to the file contents.
+   */
+
+
+  function httpLoader(fetch) {
+    return fetch ? async function (url, options) {
+      const opt = extend$1({}, this.options.http, options),
+            type = options && options.response,
+            response = await fetch(url, opt);
+      return !response.ok ? error(response.status + '' + response.statusText) : isFunction(response[type]) ? response[type]() : response.text();
+    } : httpReject;
+  }
+  /**
+   * Default http request handler that simply rejects.
+   */
+
+
+  async function httpReject() {
+    error('No HTTP fetch method available.');
+  }
+
+  const isValid = _ => _ != null && _ === _;
+
+  const isBoolean = _ => _ === 'true' || _ === 'false' || _ === true || _ === false;
+
+  const isDate = _ => !Number.isNaN(Date.parse(_));
+
+  const isNumber = _ => !Number.isNaN(+_) && !(_ instanceof Date);
+
+  const isInteger = _ => isNumber(_) && Number.isInteger(+_);
+
+  const typeParsers = {
+    boolean: toBoolean,
+    integer: toNumber,
+    number: toNumber,
+    date: toDate,
+    string: toString,
+    unknown: identity$6
+  };
+  const typeTests = [isBoolean, isInteger, isNumber, isDate];
+  const typeList = ['boolean', 'integer', 'number', 'date'];
+
+  function inferType(values, field) {
+    if (!values || !values.length) return 'unknown';
+    const n = values.length,
+          m = typeTests.length,
+          a = typeTests.map((_, i) => i + 1);
+
+    for (let i = 0, t = 0, j, value; i < n; ++i) {
+      value = field ? values[i][field] : values[i];
+
+      for (j = 0; j < m; ++j) {
+        if (a[j] && isValid(value) && !typeTests[j](value)) {
+          a[j] = 0;
+          ++t;
+          if (t === typeTests.length) return 'string';
+        }
+      }
+    }
+
+    return typeList[a.reduce((u, v) => u === 0 ? v : u, 0) - 1];
+  }
+
+  function inferTypes(data, fields) {
+    return fields.reduce((types, field) => {
+      types[field] = inferType(data, field);
+      return types;
+    }, {});
+  }
+
+  function delimitedFormat(delimiter) {
+    const parse = function (data, format) {
+      const delim = {
+        delimiter: delimiter
+      };
+      return dsv(data, format ? extend$1(format, delim) : delim);
+    };
+
+    parse.responseType = 'text';
+    return parse;
+  }
+
+  function dsv(data, format) {
+    if (format.header) {
+      data = format.header.map($).join(format.delimiter) + '\n' + data;
+    }
+
+    return dsvFormat(format.delimiter).parse(data + '');
+  }
+
+  dsv.responseType = 'text';
+
+  function isBuffer(_) {
+    return typeof Buffer === 'function' && isFunction(Buffer.isBuffer) ? Buffer.isBuffer(_) : false;
+  }
+
+  function json(data, format) {
+    const prop = format && format.property ? field$1(format.property) : identity$6;
+    return isObject(data) && !isBuffer(data) ? parseJSON(prop(data), format) : prop(JSON.parse(data));
+  }
+
+  json.responseType = 'json';
+
+  function parseJSON(data, format) {
+    if (!isArray(data) && isIterable(data)) {
+      data = [...data];
+    }
+
+    return format && format.copy ? JSON.parse(JSON.stringify(data)) : data;
+  }
+
+  const filters = {
+    interior: (a, b) => a !== b,
+    exterior: (a, b) => a === b
+  };
+
+  function topojson(data, format) {
+    let method, object, property, filter;
+    data = json(data, format);
+
+    if (format && format.feature) {
+      method = feature;
+      property = format.feature;
+    } else if (format && format.mesh) {
+      method = mesh;
+      property = format.mesh;
+      filter = filters[format.filter];
+    } else {
+      error('Missing TopoJSON feature or mesh parameter.');
+    }
+
+    object = (object = data.objects[property]) ? method(data, object, filter) : error('Invalid TopoJSON object: ' + property);
+    return object && object.features || [object];
+  }
+
+  topojson.responseType = 'json';
+  const format$2 = {
+    dsv: dsv,
+    csv: delimitedFormat(','),
+    tsv: delimitedFormat('\t'),
+    json: json,
+    topojson: topojson
+  };
+
+  function formats$1(name, reader) {
+    if (arguments.length > 1) {
+      format$2[name] = reader;
+      return this;
+    } else {
+      return has$1(format$2, name) ? format$2[name] : null;
+    }
+  }
+
+  function responseType(type) {
+    const f = formats$1(type);
+    return f && f.responseType || 'text';
+  }
+
+  function read(data, schema, timeParser, utcParser) {
+    schema = schema || {};
+    const reader = formats$1(schema.type || 'json');
+    if (!reader) error('Unknown data format type: ' + schema.type);
+    data = reader(data, schema);
+    if (schema.parse) parse$5(data, schema.parse, timeParser, utcParser);
+    if (has$1(data, 'columns')) delete data.columns;
+    return data;
+  }
+
+  function parse$5(data, types, timeParser, utcParser) {
+    if (!data.length) return; // early exit for empty data
+
+    const locale = timeFormatDefaultLocale();
+    timeParser = timeParser || locale.timeParse;
+    utcParser = utcParser || locale.utcParse;
+    let fields = data.columns || Object.keys(data[0]),
+        datum,
+        field,
+        i,
+        j,
+        n,
+        m;
+    if (types === 'auto') types = inferTypes(data, fields);
+    fields = Object.keys(types);
+    const parsers = fields.map(field => {
+      const type = types[field];
+      let parts, pattern;
+
+      if (type && (type.startsWith('date:') || type.startsWith('utc:'))) {
+        parts = type.split(/:(.+)?/, 2); // split on first :
+
+        pattern = parts[1];
+
+        if (pattern[0] === '\'' && pattern[pattern.length - 1] === '\'' || pattern[0] === '"' && pattern[pattern.length - 1] === '"') {
+          pattern = pattern.slice(1, -1);
+        }
+
+        const parse = parts[0] === 'utc' ? utcParser : timeParser;
+        return parse(pattern);
+      }
+
+      if (!typeParsers[type]) {
+        throw Error('Illegal format pattern: ' + field + ':' + type);
+      }
+
+      return typeParsers[type];
+    });
+
+    for (i = 0, n = data.length, m = fields.length; i < n; ++i) {
+      datum = data[i];
+
+      for (j = 0; j < m; ++j) {
+        field = fields[j];
+        datum[field] = parsers[j](datum[field]);
+      }
+    }
+  }
+
+  const loader = loaderFactory(typeof fetch !== 'undefined' && fetch, // use built-in fetch API
+  null // no file system access
+  );
+
+  function UniqueList(idFunc) {
+    const $ = idFunc || identity$6,
+          list = [],
+          ids = {};
+
+    list.add = _ => {
+      const id = $(_);
+
+      if (!ids[id]) {
+        ids[id] = 1;
+        list.push(_);
+      }
+
+      return list;
+    };
+
+    list.remove = _ => {
+      const id = $(_);
+
+      if (ids[id]) {
+        ids[id] = 0;
+        const idx = list.indexOf(_);
+        if (idx >= 0) list.splice(idx, 1);
+      }
+
+      return list;
+    };
+
+    return list;
+  }
+  /**
+   * Invoke and await a potentially async callback function. If
+   * an error occurs, trap it and route to Dataflow.error.
+   * @param {Dataflow} df - The dataflow instance
+   * @param {function} callback - A callback function to invoke
+   *   and then await. The dataflow will be passed as the single
+   *   argument to the function.
+   */
+
+
+  async function asyncCallback(df, callback) {
+    try {
+      await callback(df);
+    } catch (err) {
+      df.error(err);
+    }
+  }
+
+  const TUPLE_ID_KEY = Symbol('vega_id');
+  let TUPLE_ID = 1;
+  /**
+   * Checks if an input value is a registered tuple.
+   * @param {*} t - The value to check.
+   * @return {boolean} True if the input is a tuple, false otherwise.
+   */
+
+  function isTuple(t) {
+    return !!(t && tupleid(t));
+  }
+  /**
+   * Returns the id of a tuple.
+   * @param {object} t - The input tuple.
+   * @return {*} the tuple id.
+   */
+
+
+  function tupleid(t) {
+    return t[TUPLE_ID_KEY];
+  }
+  /**
+   * Sets the id of a tuple.
+   * @param {object} t - The input tuple.
+   * @param {*} id - The id value to set.
+   * @return {object} the input tuple.
+   */
+
+
+  function setid(t, id) {
+    t[TUPLE_ID_KEY] = id;
+    return t;
+  }
+  /**
+   * Ingest an object or value as a data tuple.
+   * If the input value is an object, an id field will be added to it. For
+   * efficiency, the input object is modified directly. A copy is not made.
+   * If the input value is a literal, it will be wrapped in a new object
+   * instance, with the value accessible as the 'data' property.
+   * @param datum - The value to ingest.
+   * @return {object} The ingested data tuple.
+   */
+
+
+  function ingest$1(datum) {
+    const t = datum === Object(datum) ? datum : {
+      data: datum
+    };
+    return tupleid(t) ? t : setid(t, TUPLE_ID++);
+  }
+  /**
+   * Given a source tuple, return a derived copy.
+   * @param {object} t - The source tuple.
+   * @return {object} The derived tuple.
+   */
+
+
+  function derive(t) {
+    return rederive(t, ingest$1({}));
+  }
+  /**
+   * Rederive a derived tuple by copying values from the source tuple.
+   * @param {object} t - The source tuple.
+   * @param {object} d - The derived tuple.
+   * @return {object} The derived tuple.
+   */
+
+
+  function rederive(t, d) {
+    for (const k in t) d[k] = t[k];
+
+    return d;
+  }
+  /**
+   * Replace an existing tuple with a new tuple.
+   * @param {object} t - The existing data tuple.
+   * @param {object} d - The new tuple that replaces the old.
+   * @return {object} The new tuple.
+   */
+
+
+  function replace$1(t, d) {
+    return setid(d, tupleid(t));
+  }
+  /**
+   * Generate an augmented comparator function that provides stable
+   * sorting by tuple id when the given comparator produces ties.
+   * @param {function} cmp - The comparator to augment.
+   * @param {function} [f] - Optional tuple accessor function.
+   * @return {function} An augmented comparator function.
+   */
+
+
+  function stableCompare(cmp, f) {
+    return !cmp ? null : f ? (a, b) => cmp(a, b) || tupleid(f(a)) - tupleid(f(b)) : (a, b) => cmp(a, b) || tupleid(a) - tupleid(b);
+  }
+
+  function isChangeSet(v) {
+    return v && v.constructor === changeset;
+  }
+
+  function changeset() {
+    const add = [],
+          // insert tuples
+    rem = [],
+          // remove tuples
+    mod = [],
+          // modify tuples
+    remp = [],
+          // remove by predicate
+    modp = []; // modify by predicate
+
+    let clean = null,
+        reflow = false;
+    return {
+      constructor: changeset,
+
+      insert(t) {
+        const d = array$5(t),
+              n = d.length;
+
+        for (let i = 0; i < n; ++i) add.push(d[i]);
+
+        return this;
+      },
+
+      remove(t) {
+        const a = isFunction(t) ? remp : rem,
+              d = array$5(t),
+              n = d.length;
+
+        for (let i = 0; i < n; ++i) a.push(d[i]);
+
+        return this;
+      },
+
+      modify(t, field, value) {
+        const m = {
+          field: field,
+          value: constant$4(value)
+        };
+
+        if (isFunction(t)) {
+          m.filter = t;
+          modp.push(m);
+        } else {
+          m.tuple = t;
+          mod.push(m);
+        }
+
+        return this;
+      },
+
+      encode(t, set) {
+        if (isFunction(t)) modp.push({
+          filter: t,
+          field: set
+        });else mod.push({
+          tuple: t,
+          field: set
+        });
+        return this;
+      },
+
+      clean(value) {
+        clean = value;
+        return this;
+      },
+
+      reflow() {
+        reflow = true;
+        return this;
+      },
+
+      pulse(pulse, tuples) {
+        const cur = {},
+              out = {};
+        let i, n, m, f, t, id; // build lookup table of current tuples
+
+        for (i = 0, n = tuples.length; i < n; ++i) {
+          cur[tupleid(tuples[i])] = 1;
+        } // process individual tuples to remove
+
+
+        for (i = 0, n = rem.length; i < n; ++i) {
+          t = rem[i];
+          cur[tupleid(t)] = -1;
+        } // process predicate-based removals
+
+
+        for (i = 0, n = remp.length; i < n; ++i) {
+          f = remp[i];
+          tuples.forEach(t => {
+            if (f(t)) cur[tupleid(t)] = -1;
+          });
+        } // process all add tuples
+
+
+        for (i = 0, n = add.length; i < n; ++i) {
+          t = add[i];
+          id = tupleid(t);
+
+          if (cur[id]) {
+            // tuple already resides in dataset
+            // if flagged for both add and remove, cancel
+            cur[id] = 1;
+          } else {
+            // tuple does not reside in dataset, add
+            pulse.add.push(ingest$1(add[i]));
+          }
+        } // populate pulse rem list
+
+
+        for (i = 0, n = tuples.length; i < n; ++i) {
+          t = tuples[i];
+          if (cur[tupleid(t)] < 0) pulse.rem.push(t);
+        } // modify helper method
+
+
+        function modify(t, f, v) {
+          if (v) {
+            t[f] = v(t);
+          } else {
+            pulse.encode = f;
+          }
+
+          if (!reflow) out[tupleid(t)] = t;
+        } // process individual tuples to modify
+
+
+        for (i = 0, n = mod.length; i < n; ++i) {
+          m = mod[i];
+          t = m.tuple;
+          f = m.field;
+          id = cur[tupleid(t)];
+
+          if (id > 0) {
+            modify(t, f, m.value);
+            pulse.modifies(f);
+          }
+        } // process predicate-based modifications
+
+
+        for (i = 0, n = modp.length; i < n; ++i) {
+          m = modp[i];
+          f = m.filter;
+          tuples.forEach(t => {
+            if (f(t) && cur[tupleid(t)] > 0) {
+              modify(t, m.field, m.value);
+            }
+          });
+          pulse.modifies(m.field);
+        } // upon reflow request, populate mod with all non-removed tuples
+        // otherwise, populate mod with modified tuples only
+
+
+        if (reflow) {
+          pulse.mod = rem.length || remp.length ? tuples.filter(t => cur[tupleid(t)] > 0) : tuples.slice();
+        } else {
+          for (id in out) pulse.mod.push(out[id]);
+        } // set pulse garbage collection request
+
+
+        if (clean || clean == null && (rem.length || remp.length)) {
+          pulse.clean(true);
+        }
+
+        return pulse;
+      }
+
+    };
+  }
+
+  const CACHE = '_:mod:_';
+  /**
+   * Hash that tracks modifications to assigned values.
+   * Callers *must* use the set method to update values.
+   */
+
+  function Parameters() {
+    Object.defineProperty(this, CACHE, {
+      writable: true,
+      value: {}
+    });
+  }
+
+  Parameters.prototype = {
+    /**
+     * Set a parameter value. If the parameter value changes, the parameter
+     * will be recorded as modified.
+     * @param {string} name - The parameter name.
+     * @param {number} index - The index into an array-value parameter. Ignored if
+     *   the argument is undefined, null or less than zero.
+     * @param {*} value - The parameter value to set.
+     * @param {boolean} [force=false] - If true, records the parameter as modified
+     *   even if the value is unchanged.
+     * @return {Parameters} - This parameter object.
+     */
+    set(name, index, value, force) {
+      const o = this,
+            v = o[name],
+            mod = o[CACHE];
+
+      if (index != null && index >= 0) {
+        if (v[index] !== value || force) {
+          v[index] = value;
+          mod[index + ':' + name] = -1;
+          mod[name] = -1;
+        }
+      } else if (v !== value || force) {
+        o[name] = value;
+        mod[name] = isArray(value) ? 1 + value.length : -1;
+      }
+
+      return o;
+    },
+
+    /**
+     * Tests if one or more parameters has been modified. If invoked with no
+     * arguments, returns true if any parameter value has changed. If the first
+     * argument is array, returns trues if any parameter name in the array has
+     * changed. Otherwise, tests if the given name and optional array index has
+     * changed.
+     * @param {string} name - The parameter name to test.
+     * @param {number} [index=undefined] - The parameter array index to test.
+     * @return {boolean} - Returns true if a queried parameter was modified.
+     */
+    modified(name, index) {
+      const mod = this[CACHE];
+
+      if (!arguments.length) {
+        for (const k in mod) {
+          if (mod[k]) return true;
+        }
+
+        return false;
+      } else if (isArray(name)) {
+        for (let k = 0; k < name.length; ++k) {
+          if (mod[name[k]]) return true;
+        }
+
+        return false;
+      }
+
+      return index != null && index >= 0 ? index + 1 < mod[name] || !!mod[index + ':' + name] : !!mod[name];
+    },
+
+    /**
+     * Clears the modification records. After calling this method,
+     * all parameters are considered unmodified.
+     */
+    clear() {
+      this[CACHE] = {};
+      return this;
+    }
+
+  };
+  let OP_ID = 0;
+  const PULSE = 'pulse',
+        NO_PARAMS = new Parameters(); // Boolean Flags
+
+  const SKIP$1$1 = 1,
+        MODIFIED = 2;
+  /**
+   * An Operator is a processing node in a dataflow graph.
+   * Each operator stores a value and an optional value update function.
+   * Operators can accept a hash of named parameters. Parameter values can
+   * either be direct (JavaScript literals, arrays, objects) or indirect
+   * (other operators whose values will be pulled dynamically). Operators
+   * included as parameters will have this operator added as a dependency.
+   * @constructor
+   * @param {*} [init] - The initial value for this operator.
+   * @param {function(object, Pulse)} [update] - An update function. Upon
+   *   evaluation of this operator, the update function will be invoked and the
+   *   return value will be used as the new value of this operator.
+   * @param {object} [params] - The parameters for this operator.
+   * @param {boolean} [react=true] - Flag indicating if this operator should
+   *   listen for changes to upstream operators included as parameters.
+   * @see parameters
+   */
+
+  function Operator(init, update, params, react) {
+    this.id = ++OP_ID;
+    this.value = init;
+    this.stamp = -1;
+    this.rank = -1;
+    this.qrank = -1;
+    this.flags = 0;
+
+    if (update) {
+      this._update = update;
+    }
+
+    if (params) this.parameters(params, react);
+  }
+
+  function flag(bit) {
+    return function (state) {
+      const f = this.flags;
+      if (arguments.length === 0) return !!(f & bit);
+      this.flags = state ? f | bit : f & ~bit;
+      return this;
+    };
+  }
+
+  Operator.prototype = {
+    /**
+     * Returns a list of target operators dependent on this operator.
+     * If this list does not exist, it is created and then returned.
+     * @return {UniqueList}
+     */
+    targets() {
+      return this._targets || (this._targets = UniqueList(id));
+    },
+
+    /**
+     * Sets the value of this operator.
+     * @param {*} value - the value to set.
+     * @return {Number} Returns 1 if the operator value has changed
+     *   according to strict equality, returns 0 otherwise.
+     */
+    set(value) {
+      if (this.value !== value) {
+        this.value = value;
+        return 1;
+      } else {
+        return 0;
+      }
+    },
+
+    /**
+     * Indicates that operator evaluation should be skipped on the next pulse.
+     * This operator will still propagate incoming pulses, but its update function
+     * will not be invoked. The skip flag is reset after every pulse, so calling
+     * this method will affect processing of the next pulse only.
+     */
+    skip: flag(SKIP$1$1),
+
+    /**
+     * Indicates that this operator's value has been modified on its most recent
+     * pulse. Normally modification is checked via strict equality; however, in
+     * some cases it is more efficient to update the internal state of an object.
+     * In those cases, the modified flag can be used to trigger propagation. Once
+     * set, the modification flag persists across pulses until unset. The flag can
+     * be used with the last timestamp to test if a modification is recent.
+     */
+    modified: flag(MODIFIED),
+
+    /**
+     * Sets the parameters for this operator. The parameter values are analyzed for
+     * operator instances. If found, this operator will be added as a dependency
+     * of the parameterizing operator. Operator values are dynamically marshalled
+     * from each operator parameter prior to evaluation. If a parameter value is
+     * an array, the array will also be searched for Operator instances. However,
+     * the search does not recurse into sub-arrays or object properties.
+     * @param {object} params - A hash of operator parameters.
+     * @param {boolean} [react=true] - A flag indicating if this operator should
+     *   automatically update (react) when parameter values change. In other words,
+     *   this flag determines if the operator registers itself as a listener on
+     *   any upstream operators included in the parameters.
+     * @param {boolean} [initonly=false] - A flag indicating if this operator
+     *   should calculate an update only upon its initiatal evaluation, then
+     *   deregister dependencies and suppress all future update invocations.
+     * @return {Operator[]} - An array of upstream dependencies.
+     */
+    parameters(params, react, initonly) {
+      react = react !== false;
+      const argval = this._argval = this._argval || new Parameters(),
+            argops = this._argops = this._argops || [],
+            deps = [];
+      let name, value, n, i;
+
+      const add = (name, index, value) => {
+        if (value instanceof Operator) {
+          if (value !== this) {
+            if (react) value.targets().add(this);
+            deps.push(value);
+          }
+
+          argops.push({
+            op: value,
+            name: name,
+            index: index
+          });
+        } else {
+          argval.set(name, index, value);
+        }
+      };
+
+      for (name in params) {
+        value = params[name];
+
+        if (name === PULSE) {
+          array$5(value).forEach(op => {
+            if (!(op instanceof Operator)) {
+              error('Pulse parameters must be operator instances.');
+            } else if (op !== this) {
+              op.targets().add(this);
+              deps.push(op);
+            }
+          });
+          this.source = value;
+        } else if (isArray(value)) {
+          argval.set(name, -1, Array(n = value.length));
+
+          for (i = 0; i < n; ++i) add(name, i, value[i]);
+        } else {
+          add(name, -1, value);
+        }
+      }
+
+      this.marshall().clear(); // initialize values
+
+      if (initonly) argops.initonly = true;
+      return deps;
+    },
+
+    /**
+     * Internal method for marshalling parameter values.
+     * Visits each operator dependency to pull the latest value.
+     * @return {Parameters} A Parameters object to pass to the update function.
+     */
+    marshall(stamp) {
+      const argval = this._argval || NO_PARAMS,
+            argops = this._argops;
+      let item, i, op, mod;
+
+      if (argops) {
+        const n = argops.length;
+
+        for (i = 0; i < n; ++i) {
+          item = argops[i];
+          op = item.op;
+          mod = op.modified() && op.stamp === stamp;
+          argval.set(item.name, item.index, op.value, mod);
+        }
+
+        if (argops.initonly) {
+          for (i = 0; i < n; ++i) {
+            item = argops[i];
+            item.op.targets().remove(this);
+          }
+
+          this._argops = null;
+          this._update = null;
+        }
+      }
+
+      return argval;
+    },
+
+    /**
+     * Detach this operator from the dataflow.
+     * Unregisters listeners on upstream dependencies.
+     */
+    detach() {
+      const argops = this._argops;
+      let i, n, item, op;
+
+      if (argops) {
+        for (i = 0, n = argops.length; i < n; ++i) {
+          item = argops[i];
+          op = item.op;
+
+          if (op._targets) {
+            op._targets.remove(this);
+          }
+        }
+      } // remove references to the source and pulse object,
+      // if present, to prevent memory leaks of old data.
+
+
+      this.pulse = null;
+      this.source = null;
+    },
+
+    /**
+     * Delegate method to perform operator processing.
+     * Subclasses can override this method to perform custom processing.
+     * By default, it marshalls parameters and calls the update function
+     * if that function is defined. If the update function does not
+     * change the operator value then StopPropagation is returned.
+     * If no update function is defined, this method does nothing.
+     * @param {Pulse} pulse - the current dataflow pulse.
+     * @return The output pulse or StopPropagation. A falsy return value
+     *   (including undefined) will let the input pulse pass through.
+     */
+    evaluate(pulse) {
+      const update = this._update;
+
+      if (update) {
+        const params = this.marshall(pulse.stamp),
+              v = update.call(this, params, pulse);
+        params.clear();
+
+        if (v !== this.value) {
+          this.value = v;
+        } else if (!this.modified()) {
+          return pulse.StopPropagation;
+        }
+      }
+    },
+
+    /**
+     * Run this operator for the current pulse. If this operator has already
+     * been run at (or after) the pulse timestamp, returns StopPropagation.
+     * Internally, this method calls {@link evaluate} to perform processing.
+     * If {@link evaluate} returns a falsy value, the input pulse is returned.
+     * This method should NOT be overridden, instead overrride {@link evaluate}.
+     * @param {Pulse} pulse - the current dataflow pulse.
+     * @return the output pulse for this operator (or StopPropagation)
+     */
+    run(pulse) {
+      if (pulse.stamp < this.stamp) return pulse.StopPropagation;
+      let rv;
+
+      if (this.skip()) {
+        this.skip(false);
+        rv = 0;
+      } else {
+        rv = this.evaluate(pulse);
+      }
+
+      return this.pulse = rv || pulse;
+    }
+
+  };
+  /**
+   * Add an operator to the dataflow graph. This function accepts a
+   * variety of input argument types. The basic signature supports an
+   * initial value, update function and parameters. If the first parameter
+   * is an Operator instance, it will be added directly. If it is a
+   * constructor for an Operator subclass, a new instance will be instantiated.
+   * Otherwise, if the first parameter is a function instance, it will be used
+   * as the update function and a null initial value is assumed.
+   * @param {*} init - One of: the operator to add, the initial value of
+   *   the operator, an operator class to instantiate, or an update function.
+   * @param {function} [update] - The operator update function.
+   * @param {object} [params] - The operator parameters.
+   * @param {boolean} [react=true] - Flag indicating if this operator should
+   *   listen for changes to upstream operators included as parameters.
+   * @return {Operator} - The added operator.
+   */
+
+  function add$3(init, update, params, react) {
+    let shift = 1,
+        op;
+
+    if (init instanceof Operator) {
+      op = init;
+    } else if (init && init.prototype instanceof Operator) {
+      op = new init();
+    } else if (isFunction(init)) {
+      op = new Operator(null, init);
+    } else {
+      shift = 0;
+      op = new Operator(init, update);
+    }
+
+    this.rank(op);
+
+    if (shift) {
+      react = params;
+      params = update;
+    }
+
+    if (params) this.connect(op, op.parameters(params, react));
+    this.touch(op);
+    return op;
+  }
+  /**
+   * Connect a target operator as a dependent of source operators.
+   * If necessary, this method will rerank the target operator and its
+   * dependents to ensure propagation proceeds in a topologically sorted order.
+   * @param {Operator} target - The target operator.
+   * @param {Array<Operator>} - The source operators that should propagate
+   *   to the target operator.
+   */
+
+
+  function connect(target, sources) {
+    const targetRank = target.rank,
+          n = sources.length;
+
+    for (let i = 0; i < n; ++i) {
+      if (targetRank < sources[i].rank) {
+        this.rerank(target);
+        return;
+      }
+    }
+  }
+
+  let STREAM_ID = 0;
+  /**
+   * Models an event stream.
+   * @constructor
+   * @param {function(Object, number): boolean} [filter] - Filter predicate.
+   *   Events pass through when truthy, events are suppressed when falsy.
+   * @param {function(Object): *} [apply] - Applied to input events to produce
+   *   new event values.
+   * @param {function(Object)} [receive] - Event callback function to invoke
+   *   upon receipt of a new event. Use to override standard event processing.
+   */
+
+  function EventStream(filter, apply, receive) {
+    this.id = ++STREAM_ID;
+    this.value = null;
+    if (receive) this.receive = receive;
+    if (filter) this._filter = filter;
+    if (apply) this._apply = apply;
+  }
+  /**
+   * Creates a new event stream instance with the provided
+   * (optional) filter, apply and receive functions.
+   * @param {function(Object, number): boolean} [filter] - Filter predicate.
+   *   Events pass through when truthy, events are suppressed when falsy.
+   * @param {function(Object): *} [apply] - Applied to input events to produce
+   *   new event values.
+   * @see EventStream
+   */
+
+
+  function stream(filter, apply, receive) {
+    return new EventStream(filter, apply, receive);
+  }
+
+  EventStream.prototype = {
+    _filter: truthy,
+    _apply: identity$6,
+
+    targets() {
+      return this._targets || (this._targets = UniqueList(id));
+    },
+
+    consume(_) {
+      if (!arguments.length) return !!this._consume;
+      this._consume = !!_;
+      return this;
+    },
+
+    receive(evt) {
+      if (this._filter(evt)) {
+        const val = this.value = this._apply(evt),
+              trg = this._targets,
+              n = trg ? trg.length : 0;
+
+        for (let i = 0; i < n; ++i) trg[i].receive(val);
+
+        if (this._consume) {
+          evt.preventDefault();
+          evt.stopPropagation();
+        }
+      }
+    },
+
+    filter(filter) {
+      const s = stream(filter);
+      this.targets().add(s);
+      return s;
+    },
+
+    apply(apply) {
+      const s = stream(null, apply);
+      this.targets().add(s);
+      return s;
+    },
+
+    merge() {
+      const s = stream();
+      this.targets().add(s);
+
+      for (let i = 0, n = arguments.length; i < n; ++i) {
+        arguments[i].targets().add(s);
+      }
+
+      return s;
+    },
+
+    throttle(pause) {
+      let t = -1;
+      return this.filter(() => {
+        const now = Date.now();
+
+        if (now - t > pause) {
+          t = now;
+          return 1;
+        } else {
+          return 0;
+        }
+      });
+    },
+
+    debounce(delay) {
+      const s = stream();
+      this.targets().add(stream(null, null, debounce(delay, e => {
+        const df = e.dataflow;
+        s.receive(e);
+        if (df && df.run) df.run();
+      })));
+      return s;
+    },
+
+    between(a, b) {
+      let active = false;
+      a.targets().add(stream(null, null, () => active = true));
+      b.targets().add(stream(null, null, () => active = false));
+      return this.filter(() => active);
+    },
+
+    detach() {
+      // ensures compatibility with operators (#2753)
+      // remove references to other streams and filter functions that may
+      // be bound to subcontexts that need to be garbage collected.
+      this._filter = truthy;
+      this._targets = null;
+    }
+
+  };
+  /**
+   * Create a new event stream from an event source.
+   * @param {object} source - The event source to monitor. The input must
+   *  support the addEventListener method.
+   * @param {string} type - The event type.
+   * @param {function(object): boolean} [filter] - Event filter function.
+   * @param {function(object): *} [apply] - Event application function.
+   *   If provided, this function will be invoked and the result will be
+   *   used as the downstream event value.
+   * @return {EventStream}
+   */
+
+  function events$1(source, type, filter, apply) {
+    const df = this,
+          s = stream(filter, apply),
+          send = function (e) {
+      e.dataflow = df;
+
+      try {
+        s.receive(e);
+      } catch (error) {
+        df.error(error);
+      } finally {
+        df.run();
+      }
+    };
+
+    let sources;
+
+    if (typeof source === 'string' && typeof document !== 'undefined') {
+      sources = document.querySelectorAll(source);
+    } else {
+      sources = array$5(source);
+    }
+
+    const n = sources.length;
+
+    for (let i = 0; i < n; ++i) {
+      sources[i].addEventListener(type, send);
+    }
+
+    return s;
+  }
+
+  function parse$4(data, format) {
+    const locale = this.locale();
+    return read(data, format, locale.timeParse, locale.utcParse);
+  }
+  /**
+   * Ingests new data into the dataflow. First parses the data using the
+   * vega-loader read method, then pulses a changeset to the target operator.
+   * @param {Operator} target - The Operator to target with ingested data,
+   *   typically a Collect transform instance.
+   * @param {*} data - The input data, prior to parsing. For JSON this may
+   *   be a string or an object. For CSV, TSV, etc should be a string.
+   * @param {object} format - The data format description for parsing
+   *   loaded data. This object is passed to the vega-loader read method.
+   * @returns {Dataflow}
+   */
+
+
+  function ingest(target, data, format) {
+    data = this.parse(data, format);
+    return this.pulse(target, this.changeset().insert(data));
+  }
+  /**
+   * Request data from an external source, parse it, and return a Promise.
+   * @param {string} url - The URL from which to load the data. This string
+   *   is passed to the vega-loader load method.
+   * @param {object} [format] - The data format description for parsing
+   *   loaded data. This object is passed to the vega-loader read method.
+   * @return {Promise} A Promise that resolves upon completion of the request.
+   *   The resolved object contains the following properties:
+   *   - data: an array of parsed data (or null upon error)
+   *   - status: a code for success (0), load fail (-1), or parse fail (-2)
+   */
+
+
+  async function request(url, format) {
+    const df = this;
+    let status = 0,
+        data;
+
+    try {
+      data = await df.loader().load(url, {
+        context: 'dataflow',
+        response: responseType(format && format.type)
+      });
+
+      try {
+        data = df.parse(data, format);
+      } catch (err) {
+        status = -2;
+        df.warn('Data ingestion failed', url, err);
+      }
+    } catch (err) {
+      status = -1;
+      df.warn('Loading failed', url, err);
+    }
+
+    return {
+      data,
+      status
+    };
+  }
+
+  async function preload(target, url, format) {
+    const df = this,
+          pending = df._pending || loadPending(df);
+    pending.requests += 1;
+    const res = await df.request(url, format);
+    df.pulse(target, df.changeset().remove(truthy).insert(res.data || []));
+    pending.done();
+    return res;
+  }
+
+  function loadPending(df) {
+    let accept;
+    const pending = new Promise(a => accept = a);
+    pending.requests = 0;
+
+    pending.done = () => {
+      if (--pending.requests === 0) {
+        df._pending = null;
+        accept(df);
+      }
+    };
+
+    return df._pending = pending;
+  }
+
+  const SKIP$2 = {
+    skip: true
+  };
+  /**
+   * Perform operator updates in response to events. Applies an
+   * update function to compute a new operator value. If the update function
+   * returns a {@link ChangeSet}, the operator will be pulsed with those tuple
+   * changes. Otherwise, the operator value will be updated to the return value.
+   * @param {EventStream|Operator} source - The event source to react to.
+   *   This argument can be either an EventStream or an Operator.
+   * @param {Operator|function(object):Operator} target - The operator to update.
+   *   This argument can either be an Operator instance or (if the source
+   *   argument is an EventStream), a function that accepts an event object as
+   *   input and returns an Operator to target.
+   * @param {function(Parameters,Event): *} [update] - Optional update function
+   *   to compute the new operator value, or a literal value to set. Update
+   *   functions expect to receive a parameter object and event as arguments.
+   *   This function can either return a new operator value or (if the source
+   *   argument is an EventStream) a {@link ChangeSet} instance to pulse
+   *   the target operator with tuple changes.
+   * @param {object} [params] - The update function parameters.
+   * @param {object} [options] - Additional options hash. If not overridden,
+   *   updated operators will be skipped by default.
+   * @param {boolean} [options.skip] - If true, the operator will
+   *  be skipped: it will not be evaluated, but its dependents will be.
+   * @param {boolean} [options.force] - If true, the operator will
+   *   be re-evaluated even if its value has not changed.
+   * @return {Dataflow}
+   */
+
+  function on(source, target, update, params, options) {
+    const fn = source instanceof Operator ? onOperator : onStream;
+    fn(this, source, target, update, params, options);
+    return this;
+  }
+
+  function onStream(df, stream, target, update, params, options) {
+    const opt = extend$1({}, options, SKIP$2);
+    let func, op;
+    if (!isFunction(target)) target = constant$4(target);
+
+    if (update === undefined) {
+      func = e => df.touch(target(e));
+    } else if (isFunction(update)) {
+      op = new Operator(null, update, params, false);
+
+      func = e => {
+        op.evaluate(e);
+        const t = target(e),
+              v = op.value;
+        isChangeSet(v) ? df.pulse(t, v, options) : df.update(t, v, opt);
+      };
+    } else {
+      func = e => df.update(target(e), update, opt);
+    }
+
+    stream.apply(func);
+  }
+
+  function onOperator(df, source, target, update, params, options) {
+    if (update === undefined) {
+      source.targets().add(target);
+    } else {
+      const opt = options || {},
+            op = new Operator(null, updater(target, update), params, false);
+      op.modified(opt.force);
+      op.rank = source.rank; // immediately follow source
+
+      source.targets().add(op); // add dependency
+
+      if (target) {
+        op.skip(true); // skip first invocation
+
+        op.value = target.value; // initialize value
+
+        op.targets().add(target); // chain dependencies
+
+        df.connect(target, [op]); // rerank as needed, #1672
+      }
+    }
+  }
+
+  function updater(target, update) {
+    update = isFunction(update) ? update : constant$4(update);
+    return target ? function (_, pulse) {
+      const value = update(_, pulse);
+
+      if (!target.skip()) {
+        target.skip(value !== this.value).value = value;
+      }
+
+      return value;
+    } : update;
+  }
+  /**
+   * Assigns a rank to an operator. Ranks are assigned in increasing order
+   * by incrementing an internal rank counter.
+   * @param {Operator} op - The operator to assign a rank.
+   */
+
+
+  function rank(op) {
+    op.rank = ++this._rank;
+  }
+  /**
+   * Re-ranks an operator and all downstream target dependencies. This
+   * is necessary when upstream dependencies of higher rank are added to
+   * a target operator.
+   * @param {Operator} op - The operator to re-rank.
+   */
+
+
+  function rerank(op) {
+    const queue = [op];
+    let cur, list, i;
+
+    while (queue.length) {
+      this.rank(cur = queue.pop());
+
+      if (list = cur._targets) {
+        for (i = list.length; --i >= 0;) {
+          queue.push(cur = list[i]);
+          if (cur === op) error('Cycle detected in dataflow graph.');
+        }
+      }
+    }
+  }
+  /**
+   * Sentinel value indicating pulse propagation should stop.
+   */
+
+
+  const StopPropagation = {}; // Pulse visit type flags
+
+  const ADD = 1 << 0,
+        REM = 1 << 1,
+        MOD$1 = 1 << 2,
+        ADD_REM = ADD | REM,
+        ADD_MOD = ADD | MOD$1,
+        ALL = ADD | REM | MOD$1,
+        REFLOW = 1 << 3,
+        SOURCE = 1 << 4,
+        NO_SOURCE = 1 << 5,
+        NO_FIELDS = 1 << 6;
+  /**
+   * A Pulse enables inter-operator communication during a run of the
+   * dataflow graph. In addition to the current timestamp, a pulse may also
+   * contain a change-set of added, removed or modified data tuples, as well as
+   * a pointer to a full backing data source. Tuple change sets may not
+   * be fully materialized; for example, to prevent needless array creation
+   * a change set may include larger arrays and corresponding filter functions.
+   * The pulse provides a {@link visit} method to enable proper and efficient
+   * iteration over requested data tuples.
+   *
+   * In addition, each pulse can track modification flags for data tuple fields.
+   * Responsible transform operators should call the {@link modifies} method to
+   * indicate changes to data fields. The {@link modified} method enables
+   * querying of this modification state.
+   *
+   * @constructor
+   * @param {Dataflow} dataflow - The backing dataflow instance.
+   * @param {number} stamp - The current propagation timestamp.
+   * @param {string} [encode] - An optional encoding set name, which is then
+   *   accessible as Pulse.encode. Operators can respond to (or ignore) this
+   *   setting as appropriate. This parameter can be used in conjunction with
+   *   the Encode transform in the vega-encode module.
+   */
+
+  function Pulse(dataflow, stamp, encode) {
+    this.dataflow = dataflow;
+    this.stamp = stamp == null ? -1 : stamp;
+    this.add = [];
+    this.rem = [];
+    this.mod = [];
+    this.fields = null;
+    this.encode = encode || null;
+  }
+
+  function materialize(data, filter) {
+    const out = [];
+    visitArray(data, filter, _ => out.push(_));
+    return out;
+  }
+
+  function filter$1(pulse, flags) {
+    const map = {};
+    pulse.visit(flags, t => {
+      map[tupleid(t)] = 1;
+    });
+    return t => map[tupleid(t)] ? null : t;
+  }
+
+  function addFilter(a, b) {
+    return a ? (t, i) => a(t, i) && b(t, i) : b;
+  }
+
+  Pulse.prototype = {
+    /**
+     * Sentinel value indicating pulse propagation should stop.
+     */
+    StopPropagation,
+
+    /**
+     * Boolean flag indicating ADD (added) tuples.
+     */
+    ADD,
+
+    /**
+     * Boolean flag indicating REM (removed) tuples.
+     */
+    REM,
+
+    /**
+     * Boolean flag indicating MOD (modified) tuples.
+     */
+    MOD: MOD$1,
+
+    /**
+     * Boolean flag indicating ADD (added) and REM (removed) tuples.
+     */
+    ADD_REM,
+
+    /**
+     * Boolean flag indicating ADD (added) and MOD (modified) tuples.
+     */
+    ADD_MOD,
+
+    /**
+     * Boolean flag indicating ADD, REM and MOD tuples.
+     */
+    ALL,
+
+    /**
+     * Boolean flag indicating all tuples in a data source
+     * except for the ADD, REM and MOD tuples.
+     */
+    REFLOW,
+
+    /**
+     * Boolean flag indicating a 'pass-through' to a
+     * backing data source, ignoring ADD, REM and MOD tuples.
+     */
+    SOURCE,
+
+    /**
+     * Boolean flag indicating that source data should be
+     * suppressed when creating a forked pulse.
+     */
+    NO_SOURCE,
+
+    /**
+     * Boolean flag indicating that field modifications should be
+     * suppressed when creating a forked pulse.
+     */
+    NO_FIELDS,
+
+    /**
+     * Creates a new pulse based on the values of this pulse.
+     * The dataflow, time stamp and field modification values are copied over.
+     * By default, new empty ADD, REM and MOD arrays are created.
+     * @param {number} flags - Integer of boolean flags indicating which (if any)
+     *   tuple arrays should be copied to the new pulse. The supported flag values
+     *   are ADD, REM and MOD. Array references are copied directly: new array
+     *   instances are not created.
+     * @return {Pulse} - The forked pulse instance.
+     * @see init
+     */
+    fork(flags) {
+      return new Pulse(this.dataflow).init(this, flags);
+    },
+
+    /**
+     * Creates a copy of this pulse with new materialized array
+     * instances for the ADD, REM, MOD, and SOURCE arrays.
+     * The dataflow, time stamp and field modification values are copied over.
+     * @return {Pulse} - The cloned pulse instance.
+     * @see init
+     */
+    clone() {
+      const p = this.fork(ALL);
+      p.add = p.add.slice();
+      p.rem = p.rem.slice();
+      p.mod = p.mod.slice();
+      if (p.source) p.source = p.source.slice();
+      return p.materialize(ALL | SOURCE);
+    },
+
+    /**
+     * Returns a pulse that adds all tuples from a backing source. This is
+     * useful for cases where operators are added to a dataflow after an
+     * upstream data pipeline has already been processed, ensuring that
+     * new operators can observe all tuples within a stream.
+     * @return {Pulse} - A pulse instance with all source tuples included
+     *   in the add array. If the current pulse already has all source
+     *   tuples in its add array, it is returned directly. If the current
+     *   pulse does not have a backing source, it is returned directly.
+     */
+    addAll() {
+      let p = this;
+      const reuse = !p.source || p.add === p.rem // special case for indexed set (e.g., crossfilter)
+      || !p.rem.length && p.source.length === p.add.length;
+
+      if (reuse) {
+        return p;
+      } else {
+        p = new Pulse(this.dataflow).init(this);
+        p.add = p.source;
+        p.rem = []; // new operators can ignore rem #2769
+
+        return p;
+      }
+    },
+
+    /**
+     * Initialize this pulse based on the values of another pulse. This method
+     * is used internally by {@link fork} to initialize a new forked tuple.
+     * The dataflow, time stamp and field modification values are copied over.
+     * By default, new empty ADD, REM and MOD arrays are created.
+     * @param {Pulse} src - The source pulse to copy from.
+     * @param {number} flags - Integer of boolean flags indicating which (if any)
+     *   tuple arrays should be copied to the new pulse. The supported flag values
+     *   are ADD, REM and MOD. Array references are copied directly: new array
+     *   instances are not created. By default, source data arrays are copied
+     *   to the new pulse. Use the NO_SOURCE flag to enforce a null source.
+     * @return {Pulse} - Returns this Pulse instance.
+     */
+    init(src, flags) {
+      const p = this;
+      p.stamp = src.stamp;
+      p.encode = src.encode;
+
+      if (src.fields && !(flags & NO_FIELDS)) {
+        p.fields = src.fields;
+      }
+
+      if (flags & ADD) {
+        p.addF = src.addF;
+        p.add = src.add;
+      } else {
+        p.addF = null;
+        p.add = [];
+      }
+
+      if (flags & REM) {
+        p.remF = src.remF;
+        p.rem = src.rem;
+      } else {
+        p.remF = null;
+        p.rem = [];
+      }
+
+      if (flags & MOD$1) {
+        p.modF = src.modF;
+        p.mod = src.mod;
+      } else {
+        p.modF = null;
+        p.mod = [];
+      }
+
+      if (flags & NO_SOURCE) {
+        p.srcF = null;
+        p.source = null;
+      } else {
+        p.srcF = src.srcF;
+        p.source = src.source;
+        if (src.cleans) p.cleans = src.cleans;
+      }
+
+      return p;
+    },
+
+    /**
+     * Schedules a function to run after pulse propagation completes.
+     * @param {function} func - The function to run.
+     */
+    runAfter(func) {
+      this.dataflow.runAfter(func);
+    },
+
+    /**
+     * Indicates if tuples have been added, removed or modified.
+     * @param {number} [flags] - The tuple types (ADD, REM or MOD) to query.
+     *   Defaults to ALL, returning true if any tuple type has changed.
+     * @return {boolean} - Returns true if one or more queried tuple types have
+     *   changed, false otherwise.
+     */
+    changed(flags) {
+      const f = flags || ALL;
+      return f & ADD && this.add.length || f & REM && this.rem.length || f & MOD$1 && this.mod.length;
+    },
+
+    /**
+     * Forces a "reflow" of tuple values, such that all tuples in the backing
+     * source are added to the MOD set, unless already present in the ADD set.
+     * @param {boolean} [fork=false] - If true, returns a forked copy of this
+     *   pulse, and invokes reflow on that derived pulse.
+     * @return {Pulse} - The reflowed pulse instance.
+     */
+    reflow(fork) {
+      if (fork) return this.fork(ALL).reflow();
+      const len = this.add.length,
+            src = this.source && this.source.length;
+
+      if (src && src !== len) {
+        this.mod = this.source;
+        if (len) this.filter(MOD$1, filter$1(this, ADD));
+      }
+
+      return this;
+    },
+
+    /**
+     * Get/set metadata to pulse requesting garbage collection
+     * to reclaim currently unused resources.
+     */
+    clean(value) {
+      if (arguments.length) {
+        this.cleans = !!value;
+        return this;
+      } else {
+        return this.cleans;
+      }
+    },
+
+    /**
+     * Marks one or more data field names as modified to assist dependency
+     * tracking and incremental processing by transform operators.
+     * @param {string|Array<string>} _ - The field(s) to mark as modified.
+     * @return {Pulse} - This pulse instance.
+     */
+    modifies(_) {
+      const hash = this.fields || (this.fields = {});
+
+      if (isArray(_)) {
+        _.forEach(f => hash[f] = true);
+      } else {
+        hash[_] = true;
+      }
+
+      return this;
+    },
+
+    /**
+     * Checks if one or more data fields have been modified during this pulse
+     * propagation timestamp.
+     * @param {string|Array<string>} _ - The field(s) to check for modified.
+     * @param {boolean} nomod - If true, will check the modified flag even if
+     *   no mod tuples exist. If false (default), mod tuples must be present.
+     * @return {boolean} - Returns true if any of the provided fields has been
+     *   marked as modified, false otherwise.
+     */
+    modified(_, nomod) {
+      const fields = this.fields;
+      return !((nomod || this.mod.length) && fields) ? false : !arguments.length ? !!fields : isArray(_) ? _.some(f => fields[f]) : fields[_];
+    },
+
+    /**
+     * Adds a filter function to one more tuple sets. Filters are applied to
+     * backing tuple arrays, to determine the actual set of tuples considered
+     * added, removed or modified. They can be used to delay materialization of
+     * a tuple set in order to avoid expensive array copies. In addition, the
+     * filter functions can serve as value transformers: unlike standard predicate
+     * function (which return boolean values), Pulse filters should return the
+     * actual tuple value to process. If a tuple set is already filtered, the
+     * new filter function will be appended into a conjuntive ('and') query.
+     * @param {number} flags - Flags indicating the tuple set(s) to filter.
+     * @param {function(*):object} filter - Filter function that will be applied
+     *   to the tuple set array, and should return a data tuple if the value
+     *   should be included in the tuple set, and falsy (or null) otherwise.
+     * @return {Pulse} - Returns this pulse instance.
+     */
+    filter(flags, filter) {
+      const p = this;
+      if (flags & ADD) p.addF = addFilter(p.addF, filter);
+      if (flags & REM) p.remF = addFilter(p.remF, filter);
+      if (flags & MOD$1) p.modF = addFilter(p.modF, filter);
+      if (flags & SOURCE) p.srcF = addFilter(p.srcF, filter);
+      return p;
+    },
+
+    /**
+     * Materialize one or more tuple sets in this pulse. If the tuple set(s) have
+     * a registered filter function, it will be applied and the tuple set(s) will
+     * be replaced with materialized tuple arrays.
+     * @param {number} flags - Flags indicating the tuple set(s) to materialize.
+     * @return {Pulse} - Returns this pulse instance.
+     */
+    materialize(flags) {
+      flags = flags || ALL;
+      const p = this;
+
+      if (flags & ADD && p.addF) {
+        p.add = materialize(p.add, p.addF);
+        p.addF = null;
+      }
+
+      if (flags & REM && p.remF) {
+        p.rem = materialize(p.rem, p.remF);
+        p.remF = null;
+      }
+
+      if (flags & MOD$1 && p.modF) {
+        p.mod = materialize(p.mod, p.modF);
+        p.modF = null;
+      }
+
+      if (flags & SOURCE && p.srcF) {
+        p.source = p.source.filter(p.srcF);
+        p.srcF = null;
+      }
+
+      return p;
+    },
+
+    /**
+     * Visit one or more tuple sets in this pulse.
+     * @param {number} flags - Flags indicating the tuple set(s) to visit.
+     *   Legal values are ADD, REM, MOD and SOURCE (if a backing data source
+     *   has been set).
+     * @param {function(object):*} - Visitor function invoked per-tuple.
+     * @return {Pulse} - Returns this pulse instance.
+     */
+    visit(flags, visitor) {
+      const p = this,
+            v = visitor;
+
+      if (flags & SOURCE) {
+        visitArray(p.source, p.srcF, v);
+        return p;
+      }
+
+      if (flags & ADD) visitArray(p.add, p.addF, v);
+      if (flags & REM) visitArray(p.rem, p.remF, v);
+      if (flags & MOD$1) visitArray(p.mod, p.modF, v);
+      const src = p.source;
+
+      if (flags & REFLOW && src) {
+        const sum = p.add.length + p.mod.length;
+        if (sum === src.length) ;else if (sum) {
+          visitArray(src, filter$1(p, ADD_MOD), v);
+        } else {
+          // if no add/rem/mod tuples, visit source
+          visitArray(src, p.srcF, v);
+        }
+      }
+
+      return p;
+    }
+
+  };
+  /**
+   * Represents a set of multiple pulses. Used as input for operators
+   * that accept multiple pulses at a time. Contained pulses are
+   * accessible via the public "pulses" array property. This pulse doe
+   * not carry added, removed or modified tuples directly. However,
+   * the visit method can be used to traverse all such tuples contained
+   * in sub-pulses with a timestamp matching this parent multi-pulse.
+   * @constructor
+   * @param {Dataflow} dataflow - The backing dataflow instance.
+   * @param {number} stamp - The timestamp.
+   * @param {Array<Pulse>} pulses - The sub-pulses for this multi-pulse.
+   */
+
+  function MultiPulse(dataflow, stamp, pulses, encode) {
+    const p = this;
+    let c = 0;
+    this.dataflow = dataflow;
+    this.stamp = stamp;
+    this.fields = null;
+    this.encode = encode || null;
+    this.pulses = pulses;
+
+    for (const pulse of pulses) {
+      if (pulse.stamp !== stamp) continue;
+
+      if (pulse.fields) {
+        const hash = p.fields || (p.fields = {});
+
+        for (const f in pulse.fields) {
+          hash[f] = 1;
+        }
+      }
+
+      if (pulse.changed(p.ADD)) c |= p.ADD;
+      if (pulse.changed(p.REM)) c |= p.REM;
+      if (pulse.changed(p.MOD)) c |= p.MOD;
+    }
+
+    this.changes = c;
+  }
+
+  inherits(MultiPulse, Pulse, {
+    /**
+     * Creates a new pulse based on the values of this pulse.
+     * The dataflow, time stamp and field modification values are copied over.
+     * @return {Pulse}
+     */
+    fork(flags) {
+      const p = new Pulse(this.dataflow).init(this, flags & this.NO_FIELDS);
+
+      if (flags !== undefined) {
+        if (flags & p.ADD) this.visit(p.ADD, t => p.add.push(t));
+        if (flags & p.REM) this.visit(p.REM, t => p.rem.push(t));
+        if (flags & p.MOD) this.visit(p.MOD, t => p.mod.push(t));
+      }
+
+      return p;
+    },
+
+    changed(flags) {
+      return this.changes & flags;
+    },
+
+    modified(_) {
+      const p = this,
+            fields = p.fields;
+      return !(fields && p.changes & p.MOD) ? 0 : isArray(_) ? _.some(f => fields[f]) : fields[_];
+    },
+
+    filter() {
+      error('MultiPulse does not support filtering.');
+    },
+
+    materialize() {
+      error('MultiPulse does not support materialization.');
+    },
+
+    visit(flags, visitor) {
+      const p = this,
+            pulses = p.pulses,
+            n = pulses.length;
+      let i = 0;
+
+      if (flags & p.SOURCE) {
+        for (; i < n; ++i) {
+          pulses[i].visit(flags, visitor);
+        }
+      } else {
+        for (; i < n; ++i) {
+          if (pulses[i].stamp === p.stamp) {
+            pulses[i].visit(flags, visitor);
+          }
+        }
+      }
+
+      return p;
+    }
+
+  });
+  /* eslint-disable require-atomic-updates */
+
+  /**
+   * Evaluates the dataflow and returns a Promise that resolves when pulse
+   * propagation completes. This method will increment the current timestamp
+   * and process all updated, pulsed and touched operators. When invoked for
+   * the first time, all registered operators will be processed. This method
+   * should not be invoked by third-party clients, use {@link runAsync} or
+   * {@link run} instead.
+   * @param {string} [encode] - The name of an encoding set to invoke during
+   *   propagation. This value is added to generated Pulse instances;
+   *   operators can then respond to (or ignore) this setting as appropriate.
+   *   This parameter can be used in conjunction with the Encode transform in
+   *   the vega-encode package.
+   * @param {function} [prerun] - An optional callback function to invoke
+   *   immediately before dataflow evaluation commences.
+   * @param {function} [postrun] - An optional callback function to invoke
+   *   after dataflow evaluation completes. The callback will be invoked
+   *   after those registered via {@link runAfter}.
+   * @return {Promise} - A promise that resolves to this dataflow after
+   *   evaluation completes.
+   */
+
+  async function evaluate(encode, prerun, postrun) {
+    const df = this,
+          async = []; // if the pulse value is set, this is a re-entrant call
+
+    if (df._pulse) return reentrant(df); // wait for pending datasets to load
+
+    if (df._pending) await df._pending; // invoke prerun function, if provided
+
+    if (prerun) await asyncCallback(df, prerun); // exit early if there are no updates
+
+    if (!df._touched.length) {
+      df.debug('Dataflow invoked, but nothing to do.');
+      return df;
+    } // increment timestamp clock
+
+
+    const stamp = ++df._clock; // set the current pulse
+
+    df._pulse = new Pulse(df, stamp, encode); // initialize priority queue, reset touched operators
+
+    df._touched.forEach(op => df._enqueue(op, true));
+
+    df._touched = UniqueList(id);
+    let count = 0,
+        op,
+        next,
+        error;
+
+    try {
+      while (df._heap.size() > 0) {
+        // dequeue operator with highest priority
+        op = df._heap.pop(); // re-queue if rank changed
+
+        if (op.rank !== op.qrank) {
+          df._enqueue(op, true);
+
+          continue;
+        } // otherwise, evaluate the operator
+
+
+        next = op.run(df._getPulse(op, encode));
+
+        if (next.then) {
+          // await if operator returns a promise directly
+          next = await next;
+        } else if (next.async) {
+          // queue parallel asynchronous execution
+          async.push(next.async);
+          next = StopPropagation;
+        } // propagate evaluation, enqueue dependent operators
+
+
+        if (next !== StopPropagation) {
+          if (op._targets) op._targets.forEach(op => df._enqueue(op));
+        } // increment visit counter
+
+
+        ++count;
+      }
+    } catch (err) {
+      df._heap.clear();
+
+      error = err;
+    } // reset pulse map
+
+
+    df._input = {};
+    df._pulse = null;
+    df.debug(`Pulse ${stamp}: ${count} operators`);
+
+    if (error) {
+      df._postrun = [];
+      df.error(error);
+    } // invoke callbacks queued via runAfter
+
+
+    if (df._postrun.length) {
+      const pr = df._postrun.sort((a, b) => b.priority - a.priority);
+
+      df._postrun = [];
+
+      for (let i = 0; i < pr.length; ++i) {
+        await asyncCallback(df, pr[i].callback);
+      }
+    } // invoke postrun function, if provided
+
+
+    if (postrun) await asyncCallback(df, postrun); // handle non-blocking asynchronous callbacks
+
+    if (async.length) {
+      Promise.all(async).then(cb => df.runAsync(null, () => {
+        cb.forEach(f => {
+          try {
+            f(df);
+          } catch (err) {
+            df.error(err);
+          }
+        });
+      }));
+    }
+
+    return df;
+  }
+  /**
+   * Queues dataflow evaluation to run once any other queued evaluations have
+   * completed and returns a Promise that resolves when the queued pulse
+   * propagation completes. If provided, a callback function will be invoked
+   * immediately before evaluation commences. This method will ensure a
+   * separate evaluation is invoked for each time it is called.
+   * @param {string} [encode] - The name of an encoding set to invoke during
+   *   propagation. This value is added to generated Pulse instances;
+   *   operators can then respond to (or ignore) this setting as appropriate.
+   *   This parameter can be used in conjunction with the Encode transform in
+   *   the vega-encode package.
+   * @param {function} [prerun] - An optional callback function to invoke
+   *   immediately before dataflow evaluation commences.
+   * @param {function} [postrun] - An optional callback function to invoke
+   *   after dataflow evaluation completes. The callback will be invoked
+   *   after those registered via {@link runAfter}.
+   * @return {Promise} - A promise that resolves to this dataflow after
+   *   evaluation completes.
+   */
+
+
+  async function runAsync(encode, prerun, postrun) {
+    // await previously queued functions
+    while (this._running) await this._running; // run dataflow, manage running promise
+
+
+    const clear = () => this._running = null;
+
+    (this._running = this.evaluate(encode, prerun, postrun)).then(clear, clear);
+    return this._running;
+  }
+  /**
+   * Requests dataflow evaluation and the immediately returns this dataflow
+   * instance. If there are pending data loading or other asynchronous
+   * operations, the dataflow will evaluate asynchronously after this method
+   * has been invoked. To track when dataflow evaluation completes, use the
+   * {@link runAsync} method instead. This method will raise an error if
+   * invoked while the dataflow is already in the midst of evaluation.
+   * @param {string} [encode] - The name of an encoding set to invoke during
+   *   propagation. This value is added to generated Pulse instances;
+   *   operators can then respond to (or ignore) this setting as appropriate.
+   *   This parameter can be used in conjunction with the Encode transform in
+   *   the vega-encode module.
+   * @param {function} [prerun] - An optional callback function to invoke
+   *   immediately before dataflow evaluation commences.
+   * @param {function} [postrun] - An optional callback function to invoke
+   *   after dataflow evaluation completes. The callback will be invoked
+   *   after those registered via {@link runAfter}.
+   * @return {Dataflow} - This dataflow instance.
+   */
+
+
+  function run(encode, prerun, postrun) {
+    return this._pulse ? reentrant(this) : (this.evaluate(encode, prerun, postrun), this);
+  }
+  /**
+   * Schedules a callback function to be invoked after the current pulse
+   * propagation completes. If no propagation is currently occurring,
+   * the function is invoked immediately. Callbacks scheduled via runAfter
+   * are invoked immediately upon completion of the current cycle, before
+   * any request queued via runAsync. This method is primarily intended for
+   * internal use. Third-party callers using runAfter to schedule a callback
+   * that invokes {@link run} or {@link runAsync} should not use this method,
+   * but instead use {@link runAsync} with prerun or postrun arguments.
+   * @param {function(Dataflow)} callback - The callback function to run.
+   *   The callback will be invoked with this Dataflow instance as its
+   *   sole argument.
+   * @param {boolean} enqueue - A boolean flag indicating that the
+   *   callback should be queued up to run after the next propagation
+   *   cycle, suppressing immediate invocation when propagation is not
+   *   currently occurring.
+   * @param {number} [priority] - A priority value used to sort registered
+   *   callbacks to determine execution order. This argument is intended
+   *   for internal Vega use only.
+   */
+
+
+  function runAfter(callback, enqueue, priority) {
+    if (this._pulse || enqueue) {
+      // pulse propagation is currently running, queue to run after
+      this._postrun.push({
+        priority: priority || 0,
+        callback: callback
+      });
+    } else {
+      // pulse propagation already complete, invoke immediately
+      try {
+        callback(this);
+      } catch (err) {
+        this.error(err);
+      }
+    }
+  }
+  /**
+   * Raise an error for re-entrant dataflow evaluation.
+   */
+
+
+  function reentrant(df) {
+    df.error('Dataflow already running. Use runAsync() to chain invocations.');
+    return df;
+  }
+  /**
+   * Enqueue an operator into the priority queue for evaluation. The operator
+   * will be enqueued if it has no registered pulse for the current cycle, or if
+   * the force argument is true. Upon enqueue, this method also sets the
+   * operator's qrank to the current rank value.
+   * @param {Operator} op - The operator to enqueue.
+   * @param {boolean} [force] - A flag indicating if the operator should be
+   *   forceably added to the queue, even if it has already been previously
+   *   enqueued during the current pulse propagation. This is useful when the
+   *   dataflow graph is dynamically modified and the operator rank changes.
+   */
+
+
+  function enqueue(op, force) {
+    const q = op.stamp < this._clock;
+    if (q) op.stamp = this._clock;
+
+    if (q || force) {
+      op.qrank = op.rank;
+
+      this._heap.push(op);
+    }
+  }
+  /**
+   * Provide a correct pulse for evaluating an operator. If the operator has an
+   * explicit source operator, we will try to pull the pulse(s) from it.
+   * If there is an array of source operators, we build a multi-pulse.
+   * Otherwise, we return a current pulse with correct source data.
+   * If the pulse is the pulse map has an explicit target set, we use that.
+   * Else if the pulse on the upstream source operator is current, we use that.
+   * Else we use the pulse from the pulse map, but copy the source tuple array.
+   * @param {Operator} op - The operator for which to get an input pulse.
+   * @param {string} [encode] - An (optional) encoding set name with which to
+   *   annotate the returned pulse. See {@link run} for more information.
+   */
+
+
+  function getPulse(op, encode) {
+    const s = op.source,
+          stamp = this._clock;
+    return s && isArray(s) ? new MultiPulse(this, stamp, s.map(_ => _.pulse), encode) : this._input[op.id] || singlePulse(this._pulse, s && s.pulse);
+  }
+
+  function singlePulse(p, s) {
+    if (s && s.stamp === p.stamp) {
+      return s;
+    }
+
+    p = p.fork();
+
+    if (s && s !== StopPropagation) {
+      p.source = s.source;
+    }
+
+    return p;
+  }
+
+  const NO_OPT = {
+    skip: false,
+    force: false
+  };
+  /**
+   * Touches an operator, scheduling it to be evaluated. If invoked outside of
+   * a pulse propagation, the operator will be evaluated the next time this
+   * dataflow is run. If invoked in the midst of pulse propagation, the operator
+   * will be queued for evaluation if and only if the operator has not yet been
+   * evaluated on the current propagation timestamp.
+   * @param {Operator} op - The operator to touch.
+   * @param {object} [options] - Additional options hash.
+   * @param {boolean} [options.skip] - If true, the operator will
+   *   be skipped: it will not be evaluated, but its dependents will be.
+   * @return {Dataflow}
+   */
+
+  function touch(op, options) {
+    const opt = options || NO_OPT;
+
+    if (this._pulse) {
+      // if in midst of propagation, add to priority queue
+      this._enqueue(op);
+    } else {
+      // otherwise, queue for next propagation
+      this._touched.add(op);
+    }
+
+    if (opt.skip) op.skip(true);
+    return this;
+  }
+  /**
+   * Updates the value of the given operator.
+   * @param {Operator} op - The operator to update.
+   * @param {*} value - The value to set.
+   * @param {object} [options] - Additional options hash.
+   * @param {boolean} [options.force] - If true, the operator will
+   *   be re-evaluated even if its value has not changed.
+   * @param {boolean} [options.skip] - If true, the operator will
+   *   be skipped: it will not be evaluated, but its dependents will be.
+   * @return {Dataflow}
+   */
+
+
+  function update$6(op, value, options) {
+    const opt = options || NO_OPT;
+
+    if (op.set(value) || opt.force) {
+      this.touch(op, opt);
+    }
+
+    return this;
+  }
+  /**
+   * Pulses an operator with a changeset of tuples. If invoked outside of
+   * a pulse propagation, the pulse will be applied the next time this
+   * dataflow is run. If invoked in the midst of pulse propagation, the pulse
+   * will be added to the set of active pulses and will be applied if and
+   * only if the target operator has not yet been evaluated on the current
+   * propagation timestamp.
+   * @param {Operator} op - The operator to pulse.
+   * @param {ChangeSet} value - The tuple changeset to apply.
+   * @param {object} [options] - Additional options hash.
+   * @param {boolean} [options.skip] - If true, the operator will
+   *   be skipped: it will not be evaluated, but its dependents will be.
+   * @return {Dataflow}
+   */
+
+
+  function pulse(op, changeset, options) {
+    this.touch(op, options || NO_OPT);
+    const p = new Pulse(this, this._clock + (this._pulse ? 0 : 1)),
+          t = op.pulse && op.pulse.source || [];
+    p.target = op;
+    this._input[op.id] = changeset.pulse(p, t);
+    return this;
+  }
+
+  function Heap(cmp) {
+    let nodes = [];
+    return {
+      clear: () => nodes = [],
+      size: () => nodes.length,
+      peek: () => nodes[0],
+      push: x => {
+        nodes.push(x);
+        return siftdown(nodes, 0, nodes.length - 1, cmp);
+      },
+      pop: () => {
+        const last = nodes.pop();
+        let item;
+
+        if (nodes.length) {
+          item = nodes[0];
+          nodes[0] = last;
+          siftup(nodes, 0, cmp);
+        } else {
+          item = last;
+        }
+
+        return item;
+      }
+    };
+  }
+
+  function siftdown(array, start, idx, cmp) {
+    let parent, pidx;
+    const item = array[idx];
+
+    while (idx > start) {
+      pidx = idx - 1 >> 1;
+      parent = array[pidx];
+
+      if (cmp(item, parent) < 0) {
+        array[idx] = parent;
+        idx = pidx;
+        continue;
+      }
+
+      break;
+    }
+
+    return array[idx] = item;
+  }
+
+  function siftup(array, idx, cmp) {
+    const start = idx,
+          end = array.length,
+          item = array[idx];
+    let cidx = (idx << 1) + 1,
+        ridx;
+
+    while (cidx < end) {
+      ridx = cidx + 1;
+
+      if (ridx < end && cmp(array[cidx], array[ridx]) >= 0) {
+        cidx = ridx;
+      }
+
+      array[idx] = array[cidx];
+      idx = cidx;
+      cidx = (idx << 1) + 1;
+    }
+
+    array[idx] = item;
+    return siftdown(array, start, idx, cmp);
+  }
+  /**
+   * A dataflow graph for reactive processing of data streams.
+   * @constructor
+   */
+
+
+  function Dataflow() {
+    this.logger(logger());
+    this.logLevel(Error$1);
+    this._clock = 0;
+    this._rank = 0;
+    this._locale = defaultLocale();
+
+    try {
+      this._loader = loader();
+    } catch (e) {// do nothing if loader module is unavailable
+    }
+
+    this._touched = UniqueList(id);
+    this._input = {};
+    this._pulse = null;
+    this._heap = Heap((a, b) => a.qrank - b.qrank);
+    this._postrun = [];
+  }
+
+  function logMethod(method) {
+    return function () {
+      return this._log[method].apply(this, arguments);
+    };
+  }
+
+  Dataflow.prototype = {
+    /**
+     * The current timestamp of this dataflow. This value reflects the
+     * timestamp of the previous dataflow run. The dataflow is initialized
+     * with a stamp value of 0. The initial run of the dataflow will have
+     * a timestap of 1, and so on. This value will match the
+     * {@link Pulse.stamp} property.
+     * @return {number} - The current timestamp value.
+     */
+    stamp() {
+      return this._clock;
+    },
+
+    /**
+     * Gets or sets the loader instance to use for data file loading. A
+     * loader object must provide a "load" method for loading files and a
+     * "sanitize" method for checking URL/filename validity. Both methods
+     * should accept a URI and options hash as arguments, and return a Promise
+     * that resolves to the loaded file contents (load) or a hash containing
+     * sanitized URI data with the sanitized url assigned to the "href" property
+     * (sanitize).
+     * @param {object} _ - The loader instance to use.
+     * @return {object|Dataflow} - If no arguments are provided, returns
+     *   the current loader instance. Otherwise returns this Dataflow instance.
+     */
+    loader(_) {
+      if (arguments.length) {
+        this._loader = _;
+        return this;
+      } else {
+        return this._loader;
+      }
+    },
+
+    /**
+     * Gets or sets the locale instance to use for formatting and parsing
+     * string values. The locale object should be provided by the
+     * vega-format library, and include methods such as format, timeFormat,
+     * utcFormat, timeParse, and utcParse.
+     * @param {object} _ - The locale instance to use.
+     * @return {object|Dataflow} - If no arguments are provided, returns
+     *   the current locale instance. Otherwise returns this Dataflow instance.
+     */
+    locale(_) {
+      if (arguments.length) {
+        this._locale = _;
+        return this;
+      } else {
+        return this._locale;
+      }
+    },
+
+    /**
+     * Get or set the logger instance used to log messages. If no arguments are
+     * provided, returns the current logger instance. Otherwise, sets the logger
+     * and return this Dataflow instance. Provided loggers must support the full
+     * API of logger objects generated by the vega-util logger method. Note that
+     * by default the log level of the new logger will be used; use the logLevel
+     * method to adjust the log level as needed.
+     */
+    logger(logger) {
+      if (arguments.length) {
+        this._log = logger;
+        return this;
+      } else {
+        return this._log;
+      }
+    },
+
+    /**
+     * Logs an error message. By default, logged messages are written to console
+     * output. The message will only be logged if the current log level is high
+     * enough to permit error messages.
+     */
+    error: logMethod('error'),
+
+    /**
+     * Logs a warning message. By default, logged messages are written to console
+     * output. The message will only be logged if the current log level is high
+     * enough to permit warning messages.
+     */
+    warn: logMethod('warn'),
+
+    /**
+     * Logs a information message. By default, logged messages are written to
+     * console output. The message will only be logged if the current log level is
+     * high enough to permit information messages.
+     */
+    info: logMethod('info'),
+
+    /**
+     * Logs a debug message. By default, logged messages are written to console
+     * output. The message will only be logged if the current log level is high
+     * enough to permit debug messages.
+     */
+    debug: logMethod('debug'),
+
+    /**
+     * Get or set the current log level. If an argument is provided, it
+     * will be used as the new log level.
+     * @param {number} [level] - Should be one of None, Warn, Info
+     * @return {number} - The current log level.
+     */
+    logLevel: logMethod('level'),
+
+    /**
+     * Empty entry threshold for garbage cleaning. Map data structures will
+     * perform cleaning once the number of empty entries exceeds this value.
+     */
+    cleanThreshold: 1e4,
+    // OPERATOR REGISTRATION
+    add: add$3,
+    connect,
+    rank,
+    rerank,
+    // OPERATOR UPDATES
+    pulse,
+    touch,
+    update: update$6,
+    changeset,
+    // DATA LOADING
+    ingest,
+    parse: parse$4,
+    preload,
+    request,
+    // EVENT HANDLING
+    events: events$1,
+    on,
+    // PULSE PROPAGATION
+    evaluate,
+    run,
+    runAsync,
+    runAfter,
+    _enqueue: enqueue,
+    _getPulse: getPulse
+  };
+  /**
+   * Abstract class for operators that process data tuples.
+   * Subclasses must provide a {@link transform} method for operator processing.
+   * @constructor
+   * @param {*} [init] - The initial value for this operator.
+   * @param {object} [params] - The parameters for this operator.
+   * @param {Operator} [source] - The operator from which to receive pulses.
+   */
+
+  function Transform(init, params) {
+    Operator.call(this, init, null, params);
+  }
+
+  inherits(Transform, Operator, {
+    /**
+     * Overrides {@link Operator.evaluate} for transform operators.
+     * Internally, this method calls {@link evaluate} to perform processing.
+     * If {@link evaluate} returns a falsy value, the input pulse is returned.
+     * This method should NOT be overridden, instead overrride {@link evaluate}.
+     * @param {Pulse} pulse - the current dataflow pulse.
+     * @return the output pulse for this operator (or StopPropagation)
+     */
+    run(pulse) {
+      if (pulse.stamp < this.stamp) return pulse.StopPropagation;
+      let rv;
+
+      if (this.skip()) {
+        this.skip(false);
+      } else {
+        rv = this.evaluate(pulse);
+      }
+
+      rv = rv || pulse;
+
+      if (rv.then) {
+        rv = rv.then(_ => this.pulse = _);
+      } else if (rv !== pulse.StopPropagation) {
+        this.pulse = rv;
+      }
+
+      return rv;
+    },
+
+    /**
+     * Overrides {@link Operator.evaluate} for transform operators.
+     * Marshalls parameter values and then invokes {@link transform}.
+     * @param {Pulse} pulse - the current dataflow pulse.
+     * @return {Pulse} The output pulse (or StopPropagation). A falsy return
+         value (including undefined) will let the input pulse pass through.
+    */
+    evaluate(pulse) {
+      const params = this.marshall(pulse.stamp),
+            out = this.transform(params, pulse);
+      params.clear();
+      return out;
+    },
+
+    /**
+     * Process incoming pulses.
+     * Subclasses should override this method to implement transforms.
+     * @param {Parameters} _ - The operator parameter values.
+     * @param {Pulse} pulse - The current dataflow pulse.
+     * @return {Pulse} The output pulse (or StopPropagation). A falsy return
+     *   value (including undefined) will let the input pulse pass through.
+     */
+    transform() {}
+
+  });
+  const transforms = {};
+
+  function definition$1(type) {
+    const t = transform$2(type);
+    return t && t.Definition || null;
+  }
+
+  function transform$2(type) {
+    type = type && type.toLowerCase();
+    return has$1(transforms, type) ? transforms[type] : null;
+  }
+
+  function* numbers$1(values, valueof) {
+    if (valueof == null) {
+      for (let value of values) {
+        if (value != null && value !== '' && (value = +value) >= value) {
+          yield value;
+        }
+      }
+    } else {
+      let index = -1;
+
+      for (let value of values) {
+        value = valueof(value, ++index, values);
+
+        if (value != null && value !== '' && (value = +value) >= value) {
+          yield value;
+        }
+      }
+    }
+  }
+
+  function quantiles(array, p, f) {
+    const values = Float64Array.from(numbers$1(array, f)); // don't depend on return value from typed array sort call
+    // protects against undefined sort results in Safari (vega/vega-lite#4964)
+
+    values.sort(ascending$2);
+    return p.map(_ => quantileSorted(values, _));
+  }
+
+  function quartiles(array, f) {
+    return quantiles(array, [0.25, 0.50, 0.75], f);
+  } // Theory, Practice, and Visualization. Wiley.
+
+
+  function estimateBandwidth(array, f) {
+    const n = array.length,
+          d = deviation(array, f),
+          q = quartiles(array, f),
+          h = (q[2] - q[0]) / 1.34,
+          v = Math.min(d, h) || d || Math.abs(q[0]) || 1;
+    return 1.06 * v * Math.pow(n, -0.2);
+  }
+
+  function bin(_) {
+    // determine range
+    const maxb = _.maxbins || 20,
+          base = _.base || 10,
+          logb = Math.log(base),
+          div = _.divide || [5, 2];
+    let min = _.extent[0],
+        max = _.extent[1],
+        step,
+        level,
+        minstep,
+        v,
+        i,
+        n;
+    const span = _.span || max - min || Math.abs(min) || 1;
+
+    if (_.step) {
+      // if step size is explicitly given, use that
+      step = _.step;
+    } else if (_.steps) {
+      // if provided, limit choice to acceptable step sizes
+      v = span / maxb;
+
+      for (i = 0, n = _.steps.length; i < n && _.steps[i] < v; ++i);
+
+      step = _.steps[Math.max(0, i - 1)];
+    } else {
+      // else use span to determine step size
+      level = Math.ceil(Math.log(maxb) / logb);
+      minstep = _.minstep || 0;
+      step = Math.max(minstep, Math.pow(base, Math.round(Math.log(span) / logb) - level)); // increase step size if too many bins
+
+      while (Math.ceil(span / step) > maxb) {
+        step *= base;
+      } // decrease step size if allowed
+
+
+      for (i = 0, n = div.length; i < n; ++i) {
+        v = step / div[i];
+        if (v >= minstep && span / v <= maxb) step = v;
+      }
+    } // update precision, min and max
+
+
+    v = Math.log(step);
+    const precision = v >= 0 ? 0 : ~~(-v / logb) + 1,
+          eps = Math.pow(base, -precision - 1);
+
+    if (_.nice || _.nice === undefined) {
+      v = Math.floor(min / step + eps) * step;
+      min = min < v ? v - step : v;
+      max = Math.ceil(max / step) * step;
+    }
+
+    return {
+      start: min,
+      stop: max === min ? min + step : max,
+      step: step
+    };
+  }
+
+  exports.random = Math.random;
+
+  function setRandom(r) {
+    exports.random = r;
+  }
+
+  function bootstrapCI(array, samples, alpha, f) {
+    if (!array.length) return [undefined, undefined];
+    const values = Float64Array.from(numbers$1(array, f)),
+          n = values.length,
+          m = samples;
+    let a, i, j, mu;
+
+    for (j = 0, mu = Array(m); j < m; ++j) {
+      for (a = 0, i = 0; i < n; ++i) {
+        a += values[~~(exports.random() * n)];
+      }
+
+      mu[j] = a / n;
+    }
+
+    mu.sort(ascending$2);
+    return [quantile$1(mu, alpha / 2), quantile$1(mu, 1 - alpha / 2)];
+  } // Dot density binning for dot plot construction.
+  // Based on Leland Wilkinson, Dot Plots, The American Statistician, 1999.
+  // https://www.cs.uic.edu/~wilkinson/Publications/dotplots.pdf
+
+
+  function dotbin(array, step, smooth, f) {
+    f = f || (_ => _);
+
+    const n = array.length,
+          v = new Float64Array(n);
+    let i = 0,
+        j = 1,
+        a = f(array[0]),
+        b = a,
+        w = a + step,
+        x;
+
+    for (; j < n; ++j) {
+      x = f(array[j]);
+
+      if (x >= w) {
+        b = (a + b) / 2;
+
+        for (; i < j; ++i) v[i] = b;
+
+        w = x + step;
+        a = x;
+      }
+
+      b = x;
+    }
+
+    b = (a + b) / 2;
+
+    for (; i < j; ++i) v[i] = b;
+
+    return smooth ? smoothing(v, step + step / 4) : v;
+  } // perform smoothing to reduce variance
+  // swap points between "adjacent" stacks
+  // Wilkinson defines adjacent as within step/4 units
+
+
+  function smoothing(v, thresh) {
+    const n = v.length;
+    let a = 0,
+        b = 1,
+        c,
+        d; // get left stack
+
+    while (v[a] === v[b]) ++b;
+
+    while (b < n) {
+      // get right stack
+      c = b + 1;
+
+      while (v[b] === v[c]) ++c; // are stacks adjacent?
+      // if so, compare sizes and swap as needed
+
+
+      if (v[b] - v[b - 1] < thresh) {
+        d = b + (a + c - b - b >> 1);
+
+        while (d < b) v[d++] = v[b];
+
+        while (d > b) v[d--] = v[a];
+      } // update left stack indices
+
+
+      a = b;
+      b = c;
+    }
+
+    return v;
+  }
+
+  function lcg$1(seed) {
+    // Random numbers using a Linear Congruential Generator with seed value
+    // Uses glibc values from https://en.wikipedia.org/wiki/Linear_congruential_generator
+    return function () {
+      seed = (1103515245 * seed + 12345) % 2147483647;
+      return seed / 2147483647;
+    };
+  }
+
+  function integer(min, max) {
+    if (max == null) {
+      max = min;
+      min = 0;
+    }
+
+    let a, b, d;
+    const dist = {
+      min(_) {
+        if (arguments.length) {
+          a = _ || 0;
+          d = b - a;
+          return dist;
+        } else {
+          return a;
+        }
+      },
+
+      max(_) {
+        if (arguments.length) {
+          b = _ || 0;
+          d = b - a;
+          return dist;
+        } else {
+          return b;
+        }
+      },
+
+      sample() {
+        return a + Math.floor(d * exports.random());
+      },
+
+      pdf(x) {
+        return x === Math.floor(x) && x >= a && x < b ? 1 / d : 0;
+      },
+
+      cdf(x) {
+        const v = Math.floor(x);
+        return v < a ? 0 : v >= b ? 1 : (v - a + 1) / d;
+      },
+
+      icdf(p) {
+        return p >= 0 && p <= 1 ? a - 1 + Math.floor(p * d) : NaN;
+      }
+
+    };
+    return dist.min(min).max(max);
+  }
+
+  const SQRT2PI = Math.sqrt(2 * Math.PI);
+  const SQRT2 = Math.SQRT2;
+  let nextSample = NaN;
+
+  function sampleNormal(mean, stdev) {
+    mean = mean || 0;
+    stdev = stdev == null ? 1 : stdev;
+    let x = 0,
+        y = 0,
+        rds,
+        c;
+
+    if (nextSample === nextSample) {
+      x = nextSample;
+      nextSample = NaN;
+    } else {
+      do {
+        x = exports.random() * 2 - 1;
+        y = exports.random() * 2 - 1;
+        rds = x * x + y * y;
+      } while (rds === 0 || rds > 1);
+
+      c = Math.sqrt(-2 * Math.log(rds) / rds); // Box-Muller transform
+
+      x *= c;
+      nextSample = y * c;
+    }
+
+    return mean + x * stdev;
+  }
+
+  function densityNormal(value, mean, stdev) {
+    stdev = stdev == null ? 1 : stdev;
+    const z = (value - (mean || 0)) / stdev;
+    return Math.exp(-0.5 * z * z) / (stdev * SQRT2PI);
+  } // Approximation from West (2009)
+  // Better Approximations to Cumulative Normal Functions
+
+
+  function cumulativeNormal(value, mean, stdev) {
+    mean = mean || 0;
+    stdev = stdev == null ? 1 : stdev;
+    const z = (value - mean) / stdev,
+          Z = Math.abs(z);
+    let cd;
+
+    if (Z > 37) {
+      cd = 0;
+    } else {
+      const exp = Math.exp(-Z * Z / 2);
+      let sum;
+
+      if (Z < 7.07106781186547) {
+        sum = 3.52624965998911e-02 * Z + 0.700383064443688;
+        sum = sum * Z + 6.37396220353165;
+        sum = sum * Z + 33.912866078383;
+        sum = sum * Z + 112.079291497871;
+        sum = sum * Z + 221.213596169931;
+        sum = sum * Z + 220.206867912376;
+        cd = exp * sum;
+        sum = 8.83883476483184e-02 * Z + 1.75566716318264;
+        sum = sum * Z + 16.064177579207;
+        sum = sum * Z + 86.7807322029461;
+        sum = sum * Z + 296.564248779674;
+        sum = sum * Z + 637.333633378831;
+        sum = sum * Z + 793.826512519948;
+        sum = sum * Z + 440.413735824752;
+        cd = cd / sum;
+      } else {
+        sum = Z + 0.65;
+        sum = Z + 4 / sum;
+        sum = Z + 3 / sum;
+        sum = Z + 2 / sum;
+        sum = Z + 1 / sum;
+        cd = exp / sum / 2.506628274631;
+      }
+    }
+
+    return z > 0 ? 1 - cd : cd;
+  } // Approximation of Probit function using inverse error function.
+
+
+  function quantileNormal(p, mean, stdev) {
+    if (p < 0 || p > 1) return NaN;
+    return (mean || 0) + (stdev == null ? 1 : stdev) * SQRT2 * erfinv(2 * p - 1);
+  } // Approximate inverse error function. Implementation from "Approximating
+  // the erfinv function" by Mike Giles, GPU Computing Gems, volume 2, 2010.
+  // Ported from Apache Commons Math, http://www.apache.org/licenses/LICENSE-2.0
+
+
+  function erfinv(x) {
+    // beware that the logarithm argument must be
+    // commputed as (1.0 - x) * (1.0 + x),
+    // it must NOT be simplified as 1.0 - x * x as this
+    // would induce rounding errors near the boundaries +/-1
+    let w = -Math.log((1 - x) * (1 + x)),
+        p;
+
+    if (w < 6.25) {
+      w -= 3.125;
+      p = -3.6444120640178196996e-21;
+      p = -1.685059138182016589e-19 + p * w;
+      p = 1.2858480715256400167e-18 + p * w;
+      p = 1.115787767802518096e-17 + p * w;
+      p = -1.333171662854620906e-16 + p * w;
+      p = 2.0972767875968561637e-17 + p * w;
+      p = 6.6376381343583238325e-15 + p * w;
+      p = -4.0545662729752068639e-14 + p * w;
+      p = -8.1519341976054721522e-14 + p * w;
+      p = 2.6335093153082322977e-12 + p * w;
+      p = -1.2975133253453532498e-11 + p * w;
+      p = -5.4154120542946279317e-11 + p * w;
+      p = 1.051212273321532285e-09 + p * w;
+      p = -4.1126339803469836976e-09 + p * w;
+      p = -2.9070369957882005086e-08 + p * w;
+      p = 4.2347877827932403518e-07 + p * w;
+      p = -1.3654692000834678645e-06 + p * w;
+      p = -1.3882523362786468719e-05 + p * w;
+      p = 0.0001867342080340571352 + p * w;
+      p = -0.00074070253416626697512 + p * w;
+      p = -0.0060336708714301490533 + p * w;
+      p = 0.24015818242558961693 + p * w;
+      p = 1.6536545626831027356 + p * w;
+    } else if (w < 16.0) {
+      w = Math.sqrt(w) - 3.25;
+      p = 2.2137376921775787049e-09;
+      p = 9.0756561938885390979e-08 + p * w;
+      p = -2.7517406297064545428e-07 + p * w;
+      p = 1.8239629214389227755e-08 + p * w;
+      p = 1.5027403968909827627e-06 + p * w;
+      p = -4.013867526981545969e-06 + p * w;
+      p = 2.9234449089955446044e-06 + p * w;
+      p = 1.2475304481671778723e-05 + p * w;
+      p = -4.7318229009055733981e-05 + p * w;
+      p = 6.8284851459573175448e-05 + p * w;
+      p = 2.4031110387097893999e-05 + p * w;
+      p = -0.0003550375203628474796 + p * w;
+      p = 0.00095328937973738049703 + p * w;
+      p = -0.0016882755560235047313 + p * w;
+      p = 0.0024914420961078508066 + p * w;
+      p = -0.0037512085075692412107 + p * w;
+      p = 0.005370914553590063617 + p * w;
+      p = 1.0052589676941592334 + p * w;
+      p = 3.0838856104922207635 + p * w;
+    } else if (Number.isFinite(w)) {
+      w = Math.sqrt(w) - 5.0;
+      p = -2.7109920616438573243e-11;
+      p = -2.5556418169965252055e-10 + p * w;
+      p = 1.5076572693500548083e-09 + p * w;
+      p = -3.7894654401267369937e-09 + p * w;
+      p = 7.6157012080783393804e-09 + p * w;
+      p = -1.4960026627149240478e-08 + p * w;
+      p = 2.9147953450901080826e-08 + p * w;
+      p = -6.7711997758452339498e-08 + p * w;
+      p = 2.2900482228026654717e-07 + p * w;
+      p = -9.9298272942317002539e-07 + p * w;
+      p = 4.5260625972231537039e-06 + p * w;
+      p = -1.9681778105531670567e-05 + p * w;
+      p = 7.5995277030017761139e-05 + p * w;
+      p = -0.00021503011930044477347 + p * w;
+      p = -0.00013871931833623122026 + p * w;
+      p = 1.0103004648645343977 + p * w;
+      p = 4.8499064014085844221 + p * w;
+    } else {
+      p = Infinity;
+    }
+
+    return p * x;
+  }
+
+  function gaussian(mean, stdev) {
+    let mu, sigma;
+    const dist = {
+      mean(_) {
+        if (arguments.length) {
+          mu = _ || 0;
+          return dist;
+        } else {
+          return mu;
+        }
+      },
+
+      stdev(_) {
+        if (arguments.length) {
+          sigma = _ == null ? 1 : _;
+          return dist;
+        } else {
+          return sigma;
+        }
+      },
+
+      sample: () => sampleNormal(mu, sigma),
+      pdf: value => densityNormal(value, mu, sigma),
+      cdf: value => cumulativeNormal(value, mu, sigma),
+      icdf: p => quantileNormal(p, mu, sigma)
+    };
+    return dist.mean(mean).stdev(stdev);
+  }
+
+  function kde(support, bandwidth) {
+    const kernel = gaussian();
+    let n = 0;
+    const dist = {
+      data(_) {
+        if (arguments.length) {
+          support = _;
+          n = _ ? _.length : 0;
+          return dist.bandwidth(bandwidth);
+        } else {
+          return support;
+        }
+      },
+
+      bandwidth(_) {
+        if (!arguments.length) return bandwidth;
+        bandwidth = _;
+        if (!bandwidth && support) bandwidth = estimateBandwidth(support);
+        return dist;
+      },
+
+      sample() {
+        return support[~~(exports.random() * n)] + bandwidth * kernel.sample();
+      },
+
+      pdf(x) {
+        let y = 0,
+            i = 0;
+
+        for (; i < n; ++i) {
+          y += kernel.pdf((x - support[i]) / bandwidth);
+        }
+
+        return y / bandwidth / n;
+      },
+
+      cdf(x) {
+        let y = 0,
+            i = 0;
+
+        for (; i < n; ++i) {
+          y += kernel.cdf((x - support[i]) / bandwidth);
+        }
+
+        return y / n;
+      },
+
+      icdf() {
+        throw Error('KDE icdf not supported.');
+      }
+
+    };
+    return dist.data(support);
+  }
+
+  function sampleLogNormal(mean, stdev) {
+    mean = mean || 0;
+    stdev = stdev == null ? 1 : stdev;
+    return Math.exp(mean + sampleNormal() * stdev);
+  }
+
+  function densityLogNormal(value, mean, stdev) {
+    if (value <= 0) return 0;
+    mean = mean || 0;
+    stdev = stdev == null ? 1 : stdev;
+    const z = (Math.log(value) - mean) / stdev;
+    return Math.exp(-0.5 * z * z) / (stdev * SQRT2PI * value);
+  }
+
+  function cumulativeLogNormal(value, mean, stdev) {
+    return cumulativeNormal(Math.log(value), mean, stdev);
+  }
+
+  function quantileLogNormal(p, mean, stdev) {
+    return Math.exp(quantileNormal(p, mean, stdev));
+  }
+
+  function lognormal(mean, stdev) {
+    let mu, sigma;
+    const dist = {
+      mean(_) {
+        if (arguments.length) {
+          mu = _ || 0;
+          return dist;
+        } else {
+          return mu;
+        }
+      },
+
+      stdev(_) {
+        if (arguments.length) {
+          sigma = _ == null ? 1 : _;
+          return dist;
+        } else {
+          return sigma;
+        }
+      },
+
+      sample: () => sampleLogNormal(mu, sigma),
+      pdf: value => densityLogNormal(value, mu, sigma),
+      cdf: value => cumulativeLogNormal(value, mu, sigma),
+      icdf: p => quantileLogNormal(p, mu, sigma)
+    };
+    return dist.mean(mean).stdev(stdev);
+  }
+
+  function mixture$1(dists, weights) {
+    let m = 0,
+        w;
+
+    function normalize(x) {
+      const w = [];
+      let sum = 0,
+          i;
+
+      for (i = 0; i < m; ++i) {
+        sum += w[i] = x[i] == null ? 1 : +x[i];
+      }
+
+      for (i = 0; i < m; ++i) {
+        w[i] /= sum;
+      }
+
+      return w;
+    }
+
+    const dist = {
+      weights(_) {
+        if (arguments.length) {
+          w = normalize(weights = _ || []);
+          return dist;
+        }
+
+        return weights;
+      },
+
+      distributions(_) {
+        if (arguments.length) {
+          if (_) {
+            m = _.length;
+            dists = _;
+          } else {
+            m = 0;
+            dists = [];
+          }
+
+          return dist.weights(weights);
+        }
+
+        return dists;
+      },
+
+      sample() {
+        const r = exports.random();
+        let d = dists[m - 1],
+            v = w[0],
+            i = 0; // first select distribution
+
+        for (; i < m - 1; v += w[++i]) {
+          if (r < v) {
+            d = dists[i];
+            break;
+          }
+        } // then sample from it
+
+
+        return d.sample();
+      },
+
+      pdf(x) {
+        let p = 0,
+            i = 0;
+
+        for (; i < m; ++i) {
+          p += w[i] * dists[i].pdf(x);
+        }
+
+        return p;
+      },
+
+      cdf(x) {
+        let p = 0,
+            i = 0;
+
+        for (; i < m; ++i) {
+          p += w[i] * dists[i].cdf(x);
+        }
+
+        return p;
+      },
+
+      icdf() {
+        throw Error('Mixture icdf not supported.');
+      }
+
+    };
+    return dist.distributions(dists).weights(weights);
+  }
+
+  function sampleUniform(min, max) {
+    if (max == null) {
+      max = min == null ? 1 : min;
+      min = 0;
+    }
+
+    return min + (max - min) * exports.random();
+  }
+
+  function densityUniform(value, min, max) {
+    if (max == null) {
+      max = min == null ? 1 : min;
+      min = 0;
+    }
+
+    return value >= min && value <= max ? 1 / (max - min) : 0;
+  }
+
+  function cumulativeUniform(value, min, max) {
+    if (max == null) {
+      max = min == null ? 1 : min;
+      min = 0;
+    }
+
+    return value < min ? 0 : value > max ? 1 : (value - min) / (max - min);
+  }
+
+  function quantileUniform(p, min, max) {
+    if (max == null) {
+      max = min == null ? 1 : min;
+      min = 0;
+    }
+
+    return p >= 0 && p <= 1 ? min + p * (max - min) : NaN;
+  }
+
+  function uniform(min, max) {
+    let a, b;
+    const dist = {
+      min(_) {
+        if (arguments.length) {
+          a = _ || 0;
+          return dist;
+        } else {
+          return a;
+        }
+      },
+
+      max(_) {
+        if (arguments.length) {
+          b = _ == null ? 1 : _;
+          return dist;
+        } else {
+          return b;
+        }
+      },
+
+      sample: () => sampleUniform(a, b),
+      pdf: value => densityUniform(value, a, b),
+      cdf: value => cumulativeUniform(value, a, b),
+      icdf: p => quantileUniform(p, a, b)
+    };
+
+    if (max == null) {
+      max = min == null ? 1 : min;
+      min = 0;
+    }
+
+    return dist.min(min).max(max);
+  } // Ordinary Least Squares
+
+
+  function ols(uX, uY, uXY, uX2) {
+    const delta = uX2 - uX * uX,
+          slope = Math.abs(delta) < 1e-24 ? 0 : (uXY - uX * uY) / delta,
+          intercept = uY - slope * uX;
+    return [intercept, slope];
+  }
+
+  function points(data, x, y, sort) {
+    data = data.filter(d => {
+      let u = x(d),
+          v = y(d);
+      return u != null && (u = +u) >= u && v != null && (v = +v) >= v;
+    });
+
+    if (sort) {
+      data.sort((a, b) => x(a) - x(b));
+    }
+
+    const n = data.length,
+          X = new Float64Array(n),
+          Y = new Float64Array(n); // extract values, calculate means
+
+    let i = 0,
+        ux = 0,
+        uy = 0,
+        xv,
+        yv,
+        d;
+
+    for (d of data) {
+      X[i] = xv = +x(d);
+      Y[i] = yv = +y(d);
+      ++i;
+      ux += (xv - ux) / i;
+      uy += (yv - uy) / i;
+    } // mean center the data
+
+
+    for (i = 0; i < n; ++i) {
+      X[i] -= ux;
+      Y[i] -= uy;
+    }
+
+    return [X, Y, ux, uy];
+  }
+
+  function visitPoints(data, x, y, callback) {
+    let i = -1,
+        u,
+        v;
+
+    for (const d of data) {
+      u = x(d);
+      v = y(d);
+
+      if (u != null && (u = +u) >= u && v != null && (v = +v) >= v) {
+        callback(u, v, ++i);
+      }
+    }
+  } // License: https://github.com/HarryStevens/d3-regression/blob/master/LICENSE
+
+
+  function rSquared(data, x, y, uY, predict) {
+    let SSE = 0,
+        SST = 0;
+    visitPoints(data, x, y, (dx, dy) => {
+      const sse = dy - predict(dx),
+            sst = dy - uY;
+      SSE += sse * sse;
+      SST += sst * sst;
+    });
+    return 1 - SSE / SST;
+  } // License: https://github.com/HarryStevens/d3-regression/blob/master/LICENSE
+
+
+  function linear$2(data, x, y) {
+    let X = 0,
+        Y = 0,
+        XY = 0,
+        X2 = 0,
+        n = 0;
+    visitPoints(data, x, y, (dx, dy) => {
+      ++n;
+      X += (dx - X) / n;
+      Y += (dy - Y) / n;
+      XY += (dx * dy - XY) / n;
+      X2 += (dx * dx - X2) / n;
+    });
+
+    const coef = ols(X, Y, XY, X2),
+          predict = x => coef[0] + coef[1] * x;
+
+    return {
+      coef: coef,
+      predict: predict,
+      rSquared: rSquared(data, x, y, Y, predict)
+    };
+  } // License: https://github.com/HarryStevens/d3-regression/blob/master/LICENSE
+
+
+  function log$3(data, x, y) {
+    let X = 0,
+        Y = 0,
+        XY = 0,
+        X2 = 0,
+        n = 0;
+    visitPoints(data, x, y, (dx, dy) => {
+      ++n;
+      dx = Math.log(dx);
+      X += (dx - X) / n;
+      Y += (dy - Y) / n;
+      XY += (dx * dy - XY) / n;
+      X2 += (dx * dx - X2) / n;
+    });
+
+    const coef = ols(X, Y, XY, X2),
+          predict = x => coef[0] + coef[1] * Math.log(x);
+
+    return {
+      coef: coef,
+      predict: predict,
+      rSquared: rSquared(data, x, y, Y, predict)
+    };
+  }
+
+  function exp$1(data, x, y) {
+    // eslint-disable-next-line no-unused-vars
+    const [xv, yv, ux, uy] = points(data, x, y);
+    let YL = 0,
+        XY = 0,
+        XYL = 0,
+        X2Y = 0,
+        n = 0,
+        dx,
+        ly,
+        xy;
+    visitPoints(data, x, y, (_, dy) => {
+      dx = xv[n++];
+      ly = Math.log(dy);
+      xy = dx * dy;
+      YL += (dy * ly - YL) / n;
+      XY += (xy - XY) / n;
+      XYL += (xy * ly - XYL) / n;
+      X2Y += (dx * xy - X2Y) / n;
+    });
+
+    const [c0, c1] = ols(XY / uy, YL / uy, XYL / uy, X2Y / uy),
+          predict = x => Math.exp(c0 + c1 * (x - ux));
+
+    return {
+      coef: [Math.exp(c0 - c1 * ux), c1],
+      predict: predict,
+      rSquared: rSquared(data, x, y, uy, predict)
+    };
+  } // License: https://github.com/HarryStevens/d3-regression/blob/master/LICENSE
+
+
+  function pow$3(data, x, y) {
+    let X = 0,
+        Y = 0,
+        XY = 0,
+        X2 = 0,
+        YS = 0,
+        n = 0;
+    visitPoints(data, x, y, (dx, dy) => {
+      const lx = Math.log(dx),
+            ly = Math.log(dy);
+      ++n;
+      X += (lx - X) / n;
+      Y += (ly - Y) / n;
+      XY += (lx * ly - XY) / n;
+      X2 += (lx * lx - X2) / n;
+      YS += (dy - YS) / n;
+    });
+
+    const coef = ols(X, Y, XY, X2),
+          predict = x => coef[0] * Math.pow(x, coef[1]);
+
+    coef[0] = Math.exp(coef[0]);
+    return {
+      coef: coef,
+      predict: predict,
+      rSquared: rSquared(data, x, y, YS, predict)
+    };
+  }
+
+  function quad(data, x, y) {
+    const [xv, yv, ux, uy] = points(data, x, y),
+          n = xv.length;
+    let X2 = 0,
+        X3 = 0,
+        X4 = 0,
+        XY = 0,
+        X2Y = 0,
+        i,
+        dx,
+        dy,
+        x2;
+
+    for (i = 0; i < n;) {
+      dx = xv[i];
+      dy = yv[i++];
+      x2 = dx * dx;
+      X2 += (x2 - X2) / i;
+      X3 += (x2 * dx - X3) / i;
+      X4 += (x2 * x2 - X4) / i;
+      XY += (dx * dy - XY) / i;
+      X2Y += (x2 * dy - X2Y) / i;
+    }
+
+    const X2X2 = X4 - X2 * X2,
+          d = X2 * X2X2 - X3 * X3,
+          a = (X2Y * X2 - XY * X3) / d,
+          b = (XY * X2X2 - X2Y * X3) / d,
+          c = -a * X2,
+          predict = x => {
+      x = x - ux;
+      return a * x * x + b * x + c + uy;
+    }; // transform coefficients back from mean-centered space
+
+
+    return {
+      coef: [c - b * ux + a * ux * ux + uy, b - 2 * a * ux, a],
+      predict: predict,
+      rSquared: rSquared(data, x, y, uy, predict)
+    };
+  } // License: https://github.com/HarryStevens/d3-regression/blob/master/LICENSE
+  // ... which was adapted from regression-js by Tom Alexander
+  // Source: https://github.com/Tom-Alexander/regression-js/blob/master/src/regression.js#L246
+  // License: https://github.com/Tom-Alexander/regression-js/blob/master/LICENSE
+
+
+  function poly(data, x, y, order) {
+    // use more efficient methods for lower orders
+    if (order === 1) return linear$2(data, x, y);
+    if (order === 2) return quad(data, x, y);
+    const [xv, yv, ux, uy] = points(data, x, y),
+          n = xv.length,
+          lhs = [],
+          rhs = [],
+          k = order + 1;
+    let i, j, l, v, c;
+
+    for (i = 0; i < k; ++i) {
+      for (l = 0, v = 0; l < n; ++l) {
+        v += Math.pow(xv[l], i) * yv[l];
+      }
+
+      lhs.push(v);
+      c = new Float64Array(k);
+
+      for (j = 0; j < k; ++j) {
+        for (l = 0, v = 0; l < n; ++l) {
+          v += Math.pow(xv[l], i + j);
+        }
+
+        c[j] = v;
+      }
+
+      rhs.push(c);
+    }
+
+    rhs.push(lhs);
+
+    const coef = gaussianElimination(rhs),
+          predict = x => {
+      x -= ux;
+      let y = uy + coef[0] + coef[1] * x + coef[2] * x * x;
+
+      for (i = 3; i < k; ++i) y += coef[i] * Math.pow(x, i);
+
+      return y;
+    };
+
+    return {
+      coef: uncenter(k, coef, -ux, uy),
+      predict: predict,
+      rSquared: rSquared(data, x, y, uy, predict)
+    };
+  }
+
+  function uncenter(k, a, x, y) {
+    const z = Array(k);
+    let i, j, v, c; // initialize to zero
+
+    for (i = 0; i < k; ++i) z[i] = 0; // polynomial expansion
+
+
+    for (i = k - 1; i >= 0; --i) {
+      v = a[i];
+      c = 1;
+      z[i] += v;
+
+      for (j = 1; j <= i; ++j) {
+        c *= (i + 1 - j) / j; // binomial coefficent
+
+        z[i - j] += v * Math.pow(x, j) * c;
+      }
+    } // bias term
+
+
+    z[0] += y;
+    return z;
+  } // Given an array for a two-dimensional matrix and the polynomial order,
+  // solve A * x = b using Gaussian elimination.
+
+
+  function gaussianElimination(matrix) {
+    const n = matrix.length - 1,
+          coef = [];
+    let i, j, k, r, t;
+
+    for (i = 0; i < n; ++i) {
+      r = i; // max row
+
+      for (j = i + 1; j < n; ++j) {
+        if (Math.abs(matrix[i][j]) > Math.abs(matrix[i][r])) {
+          r = j;
+        }
+      }
+
+      for (k = i; k < n + 1; ++k) {
+        t = matrix[k][i];
+        matrix[k][i] = matrix[k][r];
+        matrix[k][r] = t;
+      }
+
+      for (j = i + 1; j < n; ++j) {
+        for (k = n; k >= i; k--) {
+          matrix[k][j] -= matrix[k][i] * matrix[i][j] / matrix[i][i];
+        }
+      }
+    }
+
+    for (j = n - 1; j >= 0; --j) {
+      t = 0;
+
+      for (k = j + 1; k < n; ++k) {
+        t += matrix[k][j] * coef[k];
+      }
+
+      coef[j] = (matrix[n][j] - t) / matrix[j][j];
+    }
+
+    return coef;
+  }
+
+  const maxiters = 2,
+        epsilon$5 = 1e-12; // Adapted from science.js by Jason Davies
+  // Source: https://github.com/jasondavies/science.js/blob/master/src/stats/loess.js
+  // License: https://github.com/jasondavies/science.js/blob/master/LICENSE
+
+  function loess(data, x, y, bandwidth) {
+    const [xv, yv, ux, uy] = points(data, x, y, true),
+          n = xv.length,
+          bw = Math.max(2, ~~(bandwidth * n)),
+          // # nearest neighbors
+    yhat = new Float64Array(n),
+          residuals = new Float64Array(n),
+          robustWeights = new Float64Array(n).fill(1);
+
+    for (let iter = -1; ++iter <= maxiters;) {
+      const interval = [0, bw - 1];
+
+      for (let i = 0; i < n; ++i) {
+        const dx = xv[i],
+              i0 = interval[0],
+              i1 = interval[1],
+              edge = dx - xv[i0] > xv[i1] - dx ? i0 : i1;
+        let W = 0,
+            X = 0,
+            Y = 0,
+            XY = 0,
+            X2 = 0;
+        const denom = 1 / Math.abs(xv[edge] - dx || 1); // avoid singularity!
+
+        for (let k = i0; k <= i1; ++k) {
+          const xk = xv[k],
+                yk = yv[k],
+                w = tricube(Math.abs(dx - xk) * denom) * robustWeights[k],
+                xkw = xk * w;
+          W += w;
+          X += xkw;
+          Y += yk * w;
+          XY += yk * xkw;
+          X2 += xk * xkw;
+        } // linear regression fit
+
+
+        const [a, b] = ols(X / W, Y / W, XY / W, X2 / W);
+        yhat[i] = a + b * dx;
+        residuals[i] = Math.abs(yv[i] - yhat[i]);
+        updateInterval(xv, i + 1, interval);
+      }
+
+      if (iter === maxiters) {
+        break;
+      }
+
+      const medianResidual = median(residuals);
+      if (Math.abs(medianResidual) < epsilon$5) break;
+
+      for (let i = 0, arg, w; i < n; ++i) {
+        arg = residuals[i] / (6 * medianResidual); // default to epsilon (rather than zero) for large deviations
+        // keeping weights tiny but non-zero prevents singularites
+
+        robustWeights[i] = arg >= 1 ? epsilon$5 : (w = 1 - arg * arg) * w;
+      }
+    }
+
+    return output$1(xv, yhat, ux, uy);
+  } // weighting kernel for local regression
+
+
+  function tricube(x) {
+    return (x = 1 - x * x * x) * x * x;
+  } // advance sliding window interval of nearest neighbors
+
+
+  function updateInterval(xv, i, interval) {
+    const val = xv[i];
+    let left = interval[0],
+        right = interval[1] + 1;
+    if (right >= xv.length) return; // step right if distance to new right edge is <= distance to old left edge
+    // step when distance is equal to ensure movement over duplicate x values
+
+    while (i > left && xv[right] - val <= val - xv[left]) {
+      interval[0] = ++left;
+      interval[1] = right;
+      ++right;
+    }
+  } // generate smoothed output points
+  // average points with repeated x values
+
+
+  function output$1(xv, yhat, ux, uy) {
+    const n = xv.length,
+          out = [];
+    let i = 0,
+        cnt = 0,
+        prev = [],
+        v;
+
+    for (; i < n; ++i) {
+      v = xv[i] + ux;
+
+      if (prev[0] === v) {
+        // average output values via online update
+        prev[1] += (yhat[i] - prev[1]) / ++cnt;
+      } else {
+        // add new output point
+        cnt = 0;
+        prev[1] += uy;
+        prev = [v, yhat[i]];
+        out.push(prev);
+      }
+    }
+
+    prev[1] += uy;
+    return out;
+  } // subdivide up to accuracy of 0.5 degrees
+
+
+  const MIN_RADIANS = 0.5 * Math.PI / 180; // Adaptively sample an interpolated function over a domain extent
+
+  function sampleCurve(f, extent, minSteps, maxSteps) {
+    minSteps = minSteps || 25;
+    maxSteps = Math.max(minSteps, maxSteps || 200);
+
+    const point = x => [x, f(x)],
+          minX = extent[0],
+          maxX = extent[1],
+          span = maxX - minX,
+          stop = span / maxSteps,
+          prev = [point(minX)],
+          next = [];
+
+    if (minSteps === maxSteps) {
+      // no adaptation, sample uniform grid directly and return
+      for (let i = 1; i < maxSteps; ++i) {
+        prev.push(point(minX + i / minSteps * span));
+      }
+
+      prev.push(point(maxX));
+      return prev;
+    } else {
+      // sample minimum points on uniform grid
+      // then move on to perform adaptive refinement
+      next.push(point(maxX));
+
+      for (let i = minSteps; --i > 0;) {
+        next.push(point(minX + i / minSteps * span));
+      }
+    }
+
+    let p0 = prev[0];
+    let p1 = next[next.length - 1];
+    const sx = 1 / span;
+    const sy = scaleY(p0[1], next);
+
+    while (p1) {
+      // midpoint for potential curve subdivision
+      const pm = point((p0[0] + p1[0]) / 2);
+      const dx = pm[0] - p0[0] >= stop;
+
+      if (dx && angleDelta(p0, pm, p1, sx, sy) > MIN_RADIANS) {
+        // maximum resolution has not yet been met, and
+        // subdivision midpoint is sufficiently different from endpoint
+        // save subdivision, push midpoint onto the visitation stack
+        next.push(pm);
+      } else {
+        // subdivision midpoint sufficiently similar to endpoint
+        // skip subdivision, store endpoint, move to next point on the stack
+        p0 = p1;
+        prev.push(p1);
+        next.pop();
+      }
+
+      p1 = next[next.length - 1];
+    }
+
+    return prev;
+  }
+
+  function scaleY(init, points) {
+    let ymin = init;
+    let ymax = init;
+    const n = points.length;
+
+    for (let i = 0; i < n; ++i) {
+      const y = points[i][1];
+      if (y < ymin) ymin = y;
+      if (y > ymax) ymax = y;
+    }
+
+    return 1 / (ymax - ymin);
+  }
+
+  function angleDelta(p, q, r, sx, sy) {
+    const a0 = Math.atan2(sy * (r[1] - p[1]), sx * (r[0] - p[0])),
+          a1 = Math.atan2(sy * (q[1] - p[1]), sx * (q[0] - p[0]));
+    return Math.abs(a0 - a1);
+  }
+
+  function multikey(f) {
+    return x => {
+      const n = f.length;
+      let i = 1,
+          k = String(f[0](x));
+
+      for (; i < n; ++i) {
+        k += '|' + f[i](x);
+      }
+
+      return k;
+    };
+  }
+
+  function groupkey(fields) {
+    return !fields || !fields.length ? function () {
+      return '';
+    } : fields.length === 1 ? fields[0] : multikey(fields);
+  }
+
+  function measureName(op, field, as) {
+    return as || op + (!field ? '' : '_' + field);
+  }
+
+  const noop$4 = () => {};
+
+  const base_op = {
+    init: noop$4,
+    add: noop$4,
+    rem: noop$4,
+    idx: 0
+  };
+  const AggregateOps = {
+    values: {
+      init: m => m.cell.store = true,
+      value: m => m.cell.data.values(),
+      idx: -1
+    },
+    count: {
+      value: m => m.cell.num
+    },
+    __count__: {
+      value: m => m.missing + m.valid
+    },
+    missing: {
+      value: m => m.missing
+    },
+    valid: {
+      value: m => m.valid
+    },
+    sum: {
+      init: m => m.sum = 0,
+      value: m => m.sum,
+      add: (m, v) => m.sum += +v,
+      rem: (m, v) => m.sum -= v
+    },
+    product: {
+      init: m => m.product = 1,
+      value: m => m.valid ? m.product : undefined,
+      add: (m, v) => m.product *= v,
+      rem: (m, v) => m.product /= v
+    },
+    mean: {
+      init: m => m.mean = 0,
+      value: m => m.valid ? m.mean : undefined,
+      add: (m, v) => (m.mean_d = v - m.mean, m.mean += m.mean_d / m.valid),
+      rem: (m, v) => (m.mean_d = v - m.mean, m.mean -= m.valid ? m.mean_d / m.valid : m.mean)
+    },
+    average: {
+      value: m => m.valid ? m.mean : undefined,
+      req: ['mean'],
+      idx: 1
+    },
+    variance: {
+      init: m => m.dev = 0,
+      value: m => m.valid > 1 ? m.dev / (m.valid - 1) : undefined,
+      add: (m, v) => m.dev += m.mean_d * (v - m.mean),
+      rem: (m, v) => m.dev -= m.mean_d * (v - m.mean),
+      req: ['mean'],
+      idx: 1
+    },
+    variancep: {
+      value: m => m.valid > 1 ? m.dev / m.valid : undefined,
+      req: ['variance'],
+      idx: 2
+    },
+    stdev: {
+      value: m => m.valid > 1 ? Math.sqrt(m.dev / (m.valid - 1)) : undefined,
+      req: ['variance'],
+      idx: 2
+    },
+    stdevp: {
+      value: m => m.valid > 1 ? Math.sqrt(m.dev / m.valid) : undefined,
+      req: ['variance'],
+      idx: 2
+    },
+    stderr: {
+      value: m => m.valid > 1 ? Math.sqrt(m.dev / (m.valid * (m.valid - 1))) : undefined,
+      req: ['variance'],
+      idx: 2
+    },
+    distinct: {
+      value: m => m.cell.data.distinct(m.get),
+      req: ['values'],
+      idx: 3
+    },
+    ci0: {
+      value: m => m.cell.data.ci0(m.get),
+      req: ['values'],
+      idx: 3
+    },
+    ci1: {
+      value: m => m.cell.data.ci1(m.get),
+      req: ['values'],
+      idx: 3
+    },
+    median: {
+      value: m => m.cell.data.q2(m.get),
+      req: ['values'],
+      idx: 3
+    },
+    q1: {
+      value: m => m.cell.data.q1(m.get),
+      req: ['values'],
+      idx: 3
+    },
+    q3: {
+      value: m => m.cell.data.q3(m.get),
+      req: ['values'],
+      idx: 3
+    },
+    min: {
+      init: m => m.min = undefined,
+      value: m => m.min = Number.isNaN(m.min) ? m.cell.data.min(m.get) : m.min,
+      add: (m, v) => {
+        if (v < m.min || m.min === undefined) m.min = v;
+      },
+      rem: (m, v) => {
+        if (v <= m.min) m.min = NaN;
+      },
+      req: ['values'],
+      idx: 4
+    },
+    max: {
+      init: m => m.max = undefined,
+      value: m => m.max = Number.isNaN(m.max) ? m.cell.data.max(m.get) : m.max,
+      add: (m, v) => {
+        if (v > m.max || m.max === undefined) m.max = v;
+      },
+      rem: (m, v) => {
+        if (v >= m.max) m.max = NaN;
+      },
+      req: ['values'],
+      idx: 4
+    },
+    argmin: {
+      init: m => m.argmin = undefined,
+      value: m => m.argmin || m.cell.data.argmin(m.get),
+      add: (m, v, t) => {
+        if (v < m.min) m.argmin = t;
+      },
+      rem: (m, v) => {
+        if (v <= m.min) m.argmin = undefined;
+      },
+      req: ['min', 'values'],
+      idx: 3
+    },
+    argmax: {
+      init: m => m.argmax = undefined,
+      value: m => m.argmax || m.cell.data.argmax(m.get),
+      add: (m, v, t) => {
+        if (v > m.max) m.argmax = t;
+      },
+      rem: (m, v) => {
+        if (v >= m.max) m.argmax = undefined;
+      },
+      req: ['max', 'values'],
+      idx: 3
+    }
+  };
+  const ValidAggregateOps = Object.keys(AggregateOps);
+
+  function measure(key, value) {
+    return out => extend$1({
+      name: key,
+      out: out || key
+    }, base_op, value);
+  }
+
+  ValidAggregateOps.forEach(key => {
+    AggregateOps[key] = measure(key, AggregateOps[key]);
+  });
+
+  function createMeasure(op, name) {
+    return AggregateOps[op](name);
+  }
+
+  function compareIndex(a, b) {
+    return a.idx - b.idx;
+  }
+
+  function resolve(agg) {
+    const map = {};
+    agg.forEach(a => map[a.name] = a);
+
+    const getreqs = a => {
+      if (!a.req) return;
+      a.req.forEach(key => {
+        if (!map[key]) getreqs(map[key] = AggregateOps[key]());
+      });
+    };
+
+    agg.forEach(getreqs);
+    return Object.values(map).sort(compareIndex);
+  }
+
+  function init() {
+    this.valid = 0;
+    this.missing = 0;
+
+    this._ops.forEach(op => op.init(this));
+  }
+
+  function add$2(v, t) {
+    if (v == null || v === '') {
+      ++this.missing;
+      return;
+    }
+
+    if (v !== v) return;
+    ++this.valid;
+
+    this._ops.forEach(op => op.add(this, v, t));
+  }
+
+  function rem(v, t) {
+    if (v == null || v === '') {
+      --this.missing;
+      return;
+    }
+
+    if (v !== v) return;
+    --this.valid;
+
+    this._ops.forEach(op => op.rem(this, v, t));
+  }
+
+  function set$3(t) {
+    this._out.forEach(op => t[op.out] = op.value(this));
+
+    return t;
+  }
+
+  function compileMeasures(agg, field) {
+    const get = field || identity$6,
+          ops = resolve(agg),
+          out = agg.slice().sort(compareIndex);
+
+    function ctr(cell) {
+      this._ops = ops;
+      this._out = out;
+      this.cell = cell;
+      this.init();
+    }
+
+    ctr.prototype.init = init;
+    ctr.prototype.add = add$2;
+    ctr.prototype.rem = rem;
+    ctr.prototype.set = set$3;
+    ctr.prototype.get = get;
+    ctr.fields = agg.map(op => op.out);
+    return ctr;
+  }
+
+  function TupleStore(key) {
+    this._key = key ? field$1(key) : tupleid;
+    this.reset();
+  }
+
+  const prototype$1 = TupleStore.prototype;
+
+  prototype$1.reset = function () {
+    this._add = [];
+    this._rem = [];
+    this._ext = null;
+    this._get = null;
+    this._q = null;
+  };
+
+  prototype$1.add = function (v) {
+    this._add.push(v);
+  };
+
+  prototype$1.rem = function (v) {
+    this._rem.push(v);
+  };
+
+  prototype$1.values = function () {
+    this._get = null;
+    if (this._rem.length === 0) return this._add;
+    const a = this._add,
+          r = this._rem,
+          k = this._key,
+          n = a.length,
+          m = r.length,
+          x = Array(n - m),
+          map = {};
+    let i, j, v; // use unique key field to clear removed values
+
+    for (i = 0; i < m; ++i) {
+      map[k(r[i])] = 1;
+    }
+
+    for (i = 0, j = 0; i < n; ++i) {
+      if (map[k(v = a[i])]) {
+        map[k(v)] = 0;
+      } else {
+        x[j++] = v;
+      }
+    }
+
+    this._rem = [];
+    return this._add = x;
+  }; // memoizing statistics methods
+
+
+  prototype$1.distinct = function (get) {
+    const v = this.values(),
+          map = {};
+    let n = v.length,
+        count = 0,
+        s;
+
+    while (--n >= 0) {
+      s = get(v[n]) + '';
+
+      if (!has$1(map, s)) {
+        map[s] = 1;
+        ++count;
+      }
+    }
+
+    return count;
+  };
+
+  prototype$1.extent = function (get) {
+    if (this._get !== get || !this._ext) {
+      const v = this.values(),
+            i = extentIndex(v, get);
+      this._ext = [v[i[0]], v[i[1]]];
+      this._get = get;
+    }
+
+    return this._ext;
+  };
+
+  prototype$1.argmin = function (get) {
+    return this.extent(get)[0] || {};
+  };
+
+  prototype$1.argmax = function (get) {
+    return this.extent(get)[1] || {};
+  };
+
+  prototype$1.min = function (get) {
+    const m = this.extent(get)[0];
+    return m != null ? get(m) : undefined;
+  };
+
+  prototype$1.max = function (get) {
+    const m = this.extent(get)[1];
+    return m != null ? get(m) : undefined;
+  };
+
+  prototype$1.quartile = function (get) {
+    if (this._get !== get || !this._q) {
+      this._q = quartiles(this.values(), get);
+      this._get = get;
+    }
+
+    return this._q;
+  };
+
+  prototype$1.q1 = function (get) {
+    return this.quartile(get)[0];
+  };
+
+  prototype$1.q2 = function (get) {
+    return this.quartile(get)[1];
+  };
+
+  prototype$1.q3 = function (get) {
+    return this.quartile(get)[2];
+  };
+
+  prototype$1.ci = function (get) {
+    if (this._get !== get || !this._ci) {
+      this._ci = bootstrapCI(this.values(), 1000, 0.05, get);
+      this._get = get;
+    }
+
+    return this._ci;
+  };
+
+  prototype$1.ci0 = function (get) {
+    return this.ci(get)[0];
+  };
+
+  prototype$1.ci1 = function (get) {
+    return this.ci(get)[1];
+  };
+  /**
+   * Group-by aggregation operator.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<function(object): *>} [params.groupby] - An array of accessors to groupby.
+   * @param {Array<function(object): *>} [params.fields] - An array of accessors to aggregate.
+   * @param {Array<string>} [params.ops] - An array of strings indicating aggregation operations.
+   * @param {Array<string>} [params.as] - An array of output field names for aggregated values.
+   * @param {boolean} [params.cross=false] - A flag indicating that the full
+   *   cross-product of groupby values should be generated, including empty cells.
+   *   If true, the drop parameter is ignored and empty cells are retained.
+   * @param {boolean} [params.drop=true] - A flag indicating if empty cells should be removed.
+   */
+
+
+  function Aggregate$1(params) {
+    Transform.call(this, null, params);
+    this._adds = []; // array of added output tuples
+
+    this._mods = []; // array of modified output tuples
+
+    this._alen = 0; // number of active added tuples
+
+    this._mlen = 0; // number of active modified tuples
+
+    this._drop = true; // should empty aggregation cells be removed
+
+    this._cross = false; // produce full cross-product of group-by values
+
+    this._dims = []; // group-by dimension accessors
+
+    this._dnames = []; // group-by dimension names
+
+    this._measures = []; // collection of aggregation monoids
+
+    this._countOnly = false; // flag indicating only count aggregation
+
+    this._counts = null; // collection of count fields
+
+    this._prev = null; // previous aggregation cells
+
+    this._inputs = null; // array of dependent input tuple field names
+
+    this._outputs = null; // array of output tuple field names
+  }
+
+  Aggregate$1.Definition = {
+    'type': 'Aggregate',
+    'metadata': {
+      'generates': true,
+      'changes': true
+    },
+    'params': [{
+      'name': 'groupby',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'ops',
+      'type': 'enum',
+      'array': true,
+      'values': ValidAggregateOps
+    }, {
+      'name': 'fields',
+      'type': 'field',
+      'null': true,
+      'array': true
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'null': true,
+      'array': true
+    }, {
+      'name': 'drop',
+      'type': 'boolean',
+      'default': true
+    }, {
+      'name': 'cross',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'key',
+      'type': 'field'
+    }]
+  };
+  inherits(Aggregate$1, Transform, {
+    transform(_, pulse) {
+      const aggr = this,
+            out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS),
+            mod = _.modified();
+
+      aggr.stamp = out.stamp;
+
+      if (aggr.value && (mod || pulse.modified(aggr._inputs, true))) {
+        aggr._prev = aggr.value;
+        aggr.value = mod ? aggr.init(_) : {};
+        pulse.visit(pulse.SOURCE, t => aggr.add(t));
+      } else {
+        aggr.value = aggr.value || aggr.init(_);
+        pulse.visit(pulse.REM, t => aggr.rem(t));
+        pulse.visit(pulse.ADD, t => aggr.add(t));
+      } // Indicate output fields and return aggregate tuples.
+
+
+      out.modifies(aggr._outputs); // Should empty cells be dropped?
+
+      aggr._drop = _.drop !== false; // If domain cross-product requested, generate empty cells as needed
+      // and ensure that empty cells are not dropped
+
+      if (_.cross && aggr._dims.length > 1) {
+        aggr._drop = false;
+        aggr.cross();
+      }
+
+      if (pulse.clean() && aggr._drop) {
+        out.clean(true).runAfter(() => this.clean());
+      }
+
+      return aggr.changes(out);
+    },
+
+    cross() {
+      const aggr = this,
+            curr = aggr.value,
+            dims = aggr._dnames,
+            vals = dims.map(() => ({})),
+            n = dims.length; // collect all group-by domain values
+
+      function collect(cells) {
+        let key, i, t, v;
+
+        for (key in cells) {
+          t = cells[key].tuple;
+
+          for (i = 0; i < n; ++i) {
+            vals[i][v = t[dims[i]]] = v;
+          }
+        }
+      }
+
+      collect(aggr._prev);
+      collect(curr); // iterate over key cross-product, create cells as needed
+
+      function generate(base, tuple, index) {
+        const name = dims[index],
+              v = vals[index++];
+
+        for (const k in v) {
+          const key = base ? base + '|' + k : k;
+          tuple[name] = v[k];
+          if (index < n) generate(key, tuple, index);else if (!curr[key]) aggr.cell(key, tuple);
+        }
+      }
+
+      generate('', {}, 0);
+    },
+
+    init(_) {
+      // initialize input and output fields
+      const inputs = this._inputs = [],
+            outputs = this._outputs = [],
+            inputMap = {};
+
+      function inputVisit(get) {
+        const fields = array$5(accessorFields(get)),
+              n = fields.length;
+        let i = 0,
+            f;
+
+        for (; i < n; ++i) {
+          if (!inputMap[f = fields[i]]) {
+            inputMap[f] = 1;
+            inputs.push(f);
+          }
+        }
+      } // initialize group-by dimensions
+
+
+      this._dims = array$5(_.groupby);
+      this._dnames = this._dims.map(d => {
+        const dname = accessorName(d);
+        inputVisit(d);
+        outputs.push(dname);
+        return dname;
+      });
+      this.cellkey = _.key ? _.key : groupkey(this._dims); // initialize aggregate measures
+
+      this._countOnly = true;
+      this._counts = [];
+      this._measures = [];
+      const fields = _.fields || [null],
+            ops = _.ops || ['count'],
+            as = _.as || [],
+            n = fields.length,
+            map = {};
+      let field, op, m, mname, outname, i;
+
+      if (n !== ops.length) {
+        error('Unmatched number of fields and aggregate ops.');
+      }
+
+      for (i = 0; i < n; ++i) {
+        field = fields[i];
+        op = ops[i];
+
+        if (field == null && op !== 'count') {
+          error('Null aggregate field specified.');
+        }
+
+        mname = accessorName(field);
+        outname = measureName(op, mname, as[i]);
+        outputs.push(outname);
+
+        if (op === 'count') {
+          this._counts.push(outname);
+
+          continue;
+        }
+
+        m = map[mname];
+
+        if (!m) {
+          inputVisit(field);
+          m = map[mname] = [];
+          m.field = field;
+
+          this._measures.push(m);
+        }
+
+        if (op !== 'count') this._countOnly = false;
+        m.push(createMeasure(op, outname));
+      }
+
+      this._measures = this._measures.map(m => compileMeasures(m, m.field));
+      return {}; // aggregation cells (this.value)
+    },
+
+    // -- Cell Management -----
+    cellkey: groupkey(),
+
+    cell(key, t) {
+      let cell = this.value[key];
+
+      if (!cell) {
+        cell = this.value[key] = this.newcell(key, t);
+        this._adds[this._alen++] = cell;
+      } else if (cell.num === 0 && this._drop && cell.stamp < this.stamp) {
+        cell.stamp = this.stamp;
+        this._adds[this._alen++] = cell;
+      } else if (cell.stamp < this.stamp) {
+        cell.stamp = this.stamp;
+        this._mods[this._mlen++] = cell;
+      }
+
+      return cell;
+    },
+
+    newcell(key, t) {
+      const cell = {
+        key: key,
+        num: 0,
+        agg: null,
+        tuple: this.newtuple(t, this._prev && this._prev[key]),
+        stamp: this.stamp,
+        store: false
+      };
+
+      if (!this._countOnly) {
+        const measures = this._measures,
+              n = measures.length;
+        cell.agg = Array(n);
+
+        for (let i = 0; i < n; ++i) {
+          cell.agg[i] = new measures[i](cell);
+        }
+      }
+
+      if (cell.store) {
+        cell.data = new TupleStore();
+      }
+
+      return cell;
+    },
+
+    newtuple(t, p) {
+      const names = this._dnames,
+            dims = this._dims,
+            n = dims.length,
+            x = {};
+
+      for (let i = 0; i < n; ++i) {
+        x[names[i]] = dims[i](t);
+      }
+
+      return p ? replace$1(p.tuple, x) : ingest$1(x);
+    },
+
+    clean() {
+      const cells = this.value;
+
+      for (const key in cells) {
+        if (cells[key].num === 0) {
+          delete cells[key];
+        }
+      }
+    },
+
+    // -- Process Tuples -----
+    add(t) {
+      const key = this.cellkey(t),
+            cell = this.cell(key, t);
+      cell.num += 1;
+      if (this._countOnly) return;
+      if (cell.store) cell.data.add(t);
+      const agg = cell.agg;
+
+      for (let i = 0, n = agg.length; i < n; ++i) {
+        agg[i].add(agg[i].get(t), t);
+      }
+    },
+
+    rem(t) {
+      const key = this.cellkey(t),
+            cell = this.cell(key, t);
+      cell.num -= 1;
+      if (this._countOnly) return;
+      if (cell.store) cell.data.rem(t);
+      const agg = cell.agg;
+
+      for (let i = 0, n = agg.length; i < n; ++i) {
+        agg[i].rem(agg[i].get(t), t);
+      }
+    },
+
+    celltuple(cell) {
+      const tuple = cell.tuple,
+            counts = this._counts; // consolidate stored values
+
+      if (cell.store) {
+        cell.data.values();
+      } // update tuple properties
+
+
+      for (let i = 0, n = counts.length; i < n; ++i) {
+        tuple[counts[i]] = cell.num;
+      }
+
+      if (!this._countOnly) {
+        const agg = cell.agg;
+
+        for (let i = 0, n = agg.length; i < n; ++i) {
+          agg[i].set(tuple);
+        }
+      }
+
+      return tuple;
+    },
+
+    changes(out) {
+      const adds = this._adds,
+            mods = this._mods,
+            prev = this._prev,
+            drop = this._drop,
+            add = out.add,
+            rem = out.rem,
+            mod = out.mod;
+      let cell, key, i, n;
+      if (prev) for (key in prev) {
+        cell = prev[key];
+        if (!drop || cell.num) rem.push(cell.tuple);
+      }
+
+      for (i = 0, n = this._alen; i < n; ++i) {
+        add.push(this.celltuple(adds[i]));
+        adds[i] = null; // for garbage collection
+      }
+
+      for (i = 0, n = this._mlen; i < n; ++i) {
+        cell = mods[i];
+        (cell.num === 0 && drop ? rem : mod).push(this.celltuple(cell));
+        mods[i] = null; // for garbage collection
+      }
+
+      this._alen = this._mlen = 0; // reset list of active cells
+
+      this._prev = null;
+      return out;
+    }
+
+  });
+  const EPSILON$1 = 1e-14;
+  /**
+   * Generates a binning function for discretizing data.
+   * @constructor
+   * @param {object} params - The parameters for this operator. The
+   *   provided values should be valid options for the {@link bin} function.
+   * @param {function(object): *} params.field - The data field to bin.
+   */
+
+  function Bin(params) {
+    Transform.call(this, null, params);
+  }
+
+  Bin.Definition = {
+    'type': 'Bin',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'interval',
+      'type': 'boolean',
+      'default': true
+    }, {
+      'name': 'anchor',
+      'type': 'number'
+    }, {
+      'name': 'maxbins',
+      'type': 'number',
+      'default': 20
+    }, {
+      'name': 'base',
+      'type': 'number',
+      'default': 10
+    }, {
+      'name': 'divide',
+      'type': 'number',
+      'array': true,
+      'default': [5, 2]
+    }, {
+      'name': 'extent',
+      'type': 'number',
+      'array': true,
+      'length': 2,
+      'required': true
+    }, {
+      'name': 'span',
+      'type': 'number'
+    }, {
+      'name': 'step',
+      'type': 'number'
+    }, {
+      'name': 'steps',
+      'type': 'number',
+      'array': true
+    }, {
+      'name': 'minstep',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'nice',
+      'type': 'boolean',
+      'default': true
+    }, {
+      'name': 'name',
+      'type': 'string'
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': 2,
+      'default': ['bin0', 'bin1']
+    }]
+  };
+  inherits(Bin, Transform, {
+    transform(_, pulse) {
+      const band = _.interval !== false,
+            bins = this._bins(_),
+            start = bins.start,
+            step = bins.step,
+            as = _.as || ['bin0', 'bin1'],
+            b0 = as[0],
+            b1 = as[1];
+
+      let flag;
+
+      if (_.modified()) {
+        pulse = pulse.reflow(true);
+        flag = pulse.SOURCE;
+      } else {
+        flag = pulse.modified(accessorFields(_.field)) ? pulse.ADD_MOD : pulse.ADD;
+      }
+
+      pulse.visit(flag, band ? t => {
+        const v = bins(t); // minimum bin value (inclusive)
+
+        t[b0] = v; // maximum bin value (exclusive)
+        // use convoluted math for better floating point agreement
+        // see https://github.com/vega/vega/issues/830
+        // infinite values propagate through this formula! #2227
+
+        t[b1] = v == null ? null : start + step * (1 + (v - start) / step);
+      } : t => t[b0] = bins(t));
+      return pulse.modifies(band ? as : b0);
+    },
+
+    _bins(_) {
+      if (this.value && !_.modified()) {
+        return this.value;
+      }
+
+      const field = _.field,
+            bins = bin(_),
+            step = bins.step;
+      let start = bins.start,
+          stop = start + Math.ceil((bins.stop - start) / step) * step,
+          a,
+          d;
+
+      if ((a = _.anchor) != null) {
+        d = a - (start + step * Math.floor((a - start) / step));
+        start += d;
+        stop += d;
+      }
+
+      const f = function (t) {
+        let v = toNumber(field(t));
+        return v == null ? null : v < start ? -Infinity : v > stop ? +Infinity : (v = Math.max(start, Math.min(v, stop - step)), start + step * Math.floor(EPSILON$1 + (v - start) / step));
+      };
+
+      f.start = start;
+      f.stop = bins.stop;
+      f.step = step;
+      return this.value = accessor(f, accessorFields(field), _.name || 'bin_' + accessorName(field));
+    }
+
+  });
+
+  function SortedList(idFunc, source, input) {
+    const $ = idFunc;
+    let data = source || [],
+        add = input || [],
+        rem = {},
+        cnt = 0;
+    return {
+      add: t => add.push(t),
+      remove: t => rem[$(t)] = ++cnt,
+      size: () => data.length,
+      data: (compare, resort) => {
+        if (cnt) {
+          data = data.filter(t => !rem[$(t)]);
+          rem = {};
+          cnt = 0;
+        }
+
+        if (resort && compare) {
+          data.sort(compare);
+        }
+
+        if (add.length) {
+          data = compare ? merge$3(compare, data, add.sort(compare)) : data.concat(add);
+          add = [];
+        }
+
+        return data;
+      }
+    };
+  }
+  /**
+   * Collects all data tuples that pass through this operator.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(*,*): number} [params.sort] - An optional
+   *   comparator function for additionally sorting the collected tuples.
+   */
+
+
+  function Collect$1(params) {
+    Transform.call(this, [], params);
+  }
+
+  Collect$1.Definition = {
+    'type': 'Collect',
+    'metadata': {
+      'source': true
+    },
+    'params': [{
+      'name': 'sort',
+      'type': 'compare'
+    }]
+  };
+  inherits(Collect$1, Transform, {
+    transform(_, pulse) {
+      const out = pulse.fork(pulse.ALL),
+            list = SortedList(tupleid, this.value, out.materialize(out.ADD).add),
+            sort = _.sort,
+            mod = pulse.changed() || sort && (_.modified('sort') || pulse.modified(sort.fields));
+      out.visit(out.REM, list.remove);
+      this.modified(mod);
+      this.value = out.source = list.data(stableCompare(sort), mod); // propagate tree root if defined
+
+      if (pulse.source && pulse.source.root) {
+        this.value.root = pulse.source.root;
+      }
+
+      return out;
+    }
+
+  });
+  /**
+   * Generates a comparator function.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<string|function>} params.fields - The fields to compare.
+   * @param {Array<string>} [params.orders] - The sort orders.
+   *   Each entry should be one of "ascending" (default) or "descending".
+   */
+
+  function Compare$1(params) {
+    Operator.call(this, null, update$5, params);
+  }
+
+  inherits(Compare$1, Operator);
+
+  function update$5(_) {
+    return this.value && !_.modified() ? this.value : compare$1(_.fields, _.orders);
+  }
+  /**
+   * Count regexp-defined pattern occurrences in a text field.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - An accessor for the text field.
+   * @param {string} [params.pattern] - RegExp string defining the text pattern.
+   * @param {string} [params.case] - One of 'lower', 'upper' or null (mixed) case.
+   * @param {string} [params.stopwords] - RegExp string of words to ignore.
+   */
+
+
+  function CountPattern(params) {
+    Transform.call(this, null, params);
+  }
+
+  CountPattern.Definition = {
+    'type': 'CountPattern',
+    'metadata': {
+      'generates': true,
+      'changes': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'case',
+      'type': 'enum',
+      'values': ['upper', 'lower', 'mixed'],
+      'default': 'mixed'
+    }, {
+      'name': 'pattern',
+      'type': 'string',
+      'default': '[\\w"]+'
+    }, {
+      'name': 'stopwords',
+      'type': 'string',
+      'default': ''
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': 2,
+      'default': ['text', 'count']
+    }]
+  };
+
+  function tokenize(text, tcase, match) {
+    switch (tcase) {
+      case 'upper':
+        text = text.toUpperCase();
+        break;
+
+      case 'lower':
+        text = text.toLowerCase();
+        break;
+    }
+
+    return text.match(match);
+  }
+
+  inherits(CountPattern, Transform, {
+    transform(_, pulse) {
+      const process = update => tuple => {
+        var tokens = tokenize(get(tuple), _.case, match) || [],
+            t;
+
+        for (var i = 0, n = tokens.length; i < n; ++i) {
+          if (!stop.test(t = tokens[i])) update(t);
+        }
+      };
+
+      const init = this._parameterCheck(_, pulse),
+            counts = this._counts,
+            match = this._match,
+            stop = this._stop,
+            get = _.field,
+            as = _.as || ['text', 'count'],
+            add = process(t => counts[t] = 1 + (counts[t] || 0)),
+            rem = process(t => counts[t] -= 1);
+
+      if (init) {
+        pulse.visit(pulse.SOURCE, add);
+      } else {
+        pulse.visit(pulse.ADD, add);
+        pulse.visit(pulse.REM, rem);
+      }
+
+      return this._finish(pulse, as); // generate output tuples
+    },
+
+    _parameterCheck(_, pulse) {
+      let init = false;
+
+      if (_.modified('stopwords') || !this._stop) {
+        this._stop = new RegExp('^' + (_.stopwords || '') + '$', 'i');
+        init = true;
+      }
+
+      if (_.modified('pattern') || !this._match) {
+        this._match = new RegExp(_.pattern || '[\\w\']+', 'g');
+        init = true;
+      }
+
+      if (_.modified('field') || pulse.modified(_.field.fields)) {
+        init = true;
+      }
+
+      if (init) this._counts = {};
+      return init;
+    },
+
+    _finish(pulse, as) {
+      const counts = this._counts,
+            tuples = this._tuples || (this._tuples = {}),
+            text = as[0],
+            count = as[1],
+            out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS);
+      let w, t, c;
+
+      for (w in counts) {
+        t = tuples[w];
+        c = counts[w] || 0;
+
+        if (!t && c) {
+          tuples[w] = t = ingest$1({});
+          t[text] = w;
+          t[count] = c;
+          out.add.push(t);
+        } else if (c === 0) {
+          if (t) out.rem.push(t);
+          counts[w] = null;
+          tuples[w] = null;
+        } else if (t[count] !== c) {
+          t[count] = c;
+          out.mod.push(t);
+        }
+      }
+
+      return out.modifies(as);
+    }
+
+  });
+  /**
+   * Perform a cross-product of a tuple stream with itself.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object):boolean} [params.filter] - An optional filter
+   *   function for selectively including tuples in the cross product.
+   * @param {Array<string>} [params.as] - The names of the output fields.
+   */
+
+  function Cross(params) {
+    Transform.call(this, null, params);
+  }
+
+  Cross.Definition = {
+    'type': 'Cross',
+    'metadata': {
+      'generates': true
+    },
+    'params': [{
+      'name': 'filter',
+      'type': 'expr'
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': 2,
+      'default': ['a', 'b']
+    }]
+  };
+  inherits(Cross, Transform, {
+    transform(_, pulse) {
+      const out = pulse.fork(pulse.NO_SOURCE),
+            as = _.as || ['a', 'b'],
+            a = as[0],
+            b = as[1],
+            reset = !this.value || pulse.changed(pulse.ADD_REM) || _.modified('as') || _.modified('filter');
+
+      let data = this.value;
+
+      if (reset) {
+        if (data) out.rem = data;
+        data = pulse.materialize(pulse.SOURCE).source;
+        out.add = this.value = cross(data, a, b, _.filter || truthy);
+      } else {
+        out.mod = data;
+      }
+
+      out.source = this.value;
+      return out.modifies(as);
+    }
+
+  });
+
+  function cross(input, a, b, filter) {
+    var data = [],
+        t = {},
+        n = input.length,
+        i = 0,
+        j,
+        left;
+
+    for (; i < n; ++i) {
+      t[a] = left = input[i];
+
+      for (j = 0; j < n; ++j) {
+        t[b] = input[j];
+
+        if (filter(t)) {
+          data.push(ingest$1(t));
+          t = {};
+          t[a] = left;
+        }
+      }
+    }
+
+    return data;
+  }
+
+  const Distributions = {
+    kde: kde,
+    mixture: mixture$1,
+    normal: gaussian,
+    lognormal: lognormal,
+    uniform: uniform
+  };
+  const DISTRIBUTIONS = 'distributions',
+        FUNCTION = 'function',
+        FIELD = 'field';
+  /**
+   * Parse a parameter object for a probability distribution.
+   * @param {object} def - The distribution parameter object.
+   * @param {function():Array<object>} - A method for requesting
+   *   source data. Used for distributions (such as KDE) that
+   *   require sample data points. This method will only be
+   *   invoked if the 'from' parameter for a target data source
+   *   is not provided. Typically this method returns backing
+   *   source data for a Pulse object.
+   * @return {object} - The output distribution object.
+   */
+
+  function parse$3(def, data) {
+    const func = def[FUNCTION];
+
+    if (!has$1(Distributions, func)) {
+      error('Unknown distribution function: ' + func);
+    }
+
+    const d = Distributions[func]();
+
+    for (const name in def) {
+      // if data field, extract values
+      if (name === FIELD) {
+        d.data((def.from || data()).map(def[name]));
+      } // if distribution mixture, recurse to parse each definition
+      else if (name === DISTRIBUTIONS) {
+        d[name](def[name].map(_ => parse$3(_, data)));
+      } // otherwise, simply set the parameter
+      else if (typeof d[name] === FUNCTION) {
+        d[name](def[name]);
+      }
+    }
+
+    return d;
+  }
+  /**
+   * Grid sample points for a probability density. Given a distribution and
+   * a sampling extent, will generate points suitable for plotting either
+   * PDF (probability density function) or CDF (cumulative distribution
+   * function) curves.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {object} params.distribution - The probability distribution. This
+   *   is an object parameter dependent on the distribution type.
+   * @param {string} [params.method='pdf'] - The distribution method to sample.
+   *   One of 'pdf' or 'cdf'.
+   * @param {Array<number>} [params.extent] - The [min, max] extent over which
+   *   to sample the distribution. This argument is required in most cases, but
+   *   can be omitted if the distribution (e.g., 'kde') supports a 'data' method
+   *   that returns numerical sample points from which the extent can be deduced.
+   * @param {number} [params.minsteps=25] - The minimum number of curve samples
+   *   for plotting the density.
+   * @param {number} [params.maxsteps=200] - The maximum number of curve samples
+   *   for plotting the density.
+   * @param {number} [params.steps] - The exact number of curve samples for
+   *   plotting the density. If specified, overrides both minsteps and maxsteps
+   *   to set an exact number of uniform samples. Useful in conjunction with
+   *   a fixed extent to ensure consistent sample points for stacked densities.
+   */
+
+
+  function Density(params) {
+    Transform.call(this, null, params);
+  }
+
+  const distributions = [{
+    'key': {
+      'function': 'normal'
+    },
+    'params': [{
+      'name': 'mean',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'stdev',
+      'type': 'number',
+      'default': 1
+    }]
+  }, {
+    'key': {
+      'function': 'lognormal'
+    },
+    'params': [{
+      'name': 'mean',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'stdev',
+      'type': 'number',
+      'default': 1
+    }]
+  }, {
+    'key': {
+      'function': 'uniform'
+    },
+    'params': [{
+      'name': 'min',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'max',
+      'type': 'number',
+      'default': 1
+    }]
+  }, {
+    'key': {
+      'function': 'kde'
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'from',
+      'type': 'data'
+    }, {
+      'name': 'bandwidth',
+      'type': 'number',
+      'default': 0
+    }]
+  }];
+  const mixture = {
+    'key': {
+      'function': 'mixture'
+    },
+    'params': [{
+      'name': 'distributions',
+      'type': 'param',
+      'array': true,
+      'params': distributions
+    }, {
+      'name': 'weights',
+      'type': 'number',
+      'array': true
+    }]
+  };
+  Density.Definition = {
+    'type': 'Density',
+    'metadata': {
+      'generates': true
+    },
+    'params': [{
+      'name': 'extent',
+      'type': 'number',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'steps',
+      'type': 'number'
+    }, {
+      'name': 'minsteps',
+      'type': 'number',
+      'default': 25
+    }, {
+      'name': 'maxsteps',
+      'type': 'number',
+      'default': 200
+    }, {
+      'name': 'method',
+      'type': 'string',
+      'default': 'pdf',
+      'values': ['pdf', 'cdf']
+    }, {
+      'name': 'distribution',
+      'type': 'param',
+      'params': distributions.concat(mixture)
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'default': ['value', 'density']
+    }]
+  };
+  inherits(Density, Transform, {
+    transform(_, pulse) {
+      const out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS);
+
+      if (!this.value || pulse.changed() || _.modified()) {
+        const dist = parse$3(_.distribution, source$1(pulse)),
+              minsteps = _.steps || _.minsteps || 25,
+              maxsteps = _.steps || _.maxsteps || 200;
+        let method = _.method || 'pdf';
+
+        if (method !== 'pdf' && method !== 'cdf') {
+          error('Invalid density method: ' + method);
+        }
+
+        if (!_.extent && !dist.data) {
+          error('Missing density extent parameter.');
+        }
+
+        method = dist[method];
+        const as = _.as || ['value', 'density'],
+              domain = _.extent || extent(dist.data()),
+              values = sampleCurve(method, domain, minsteps, maxsteps).map(v => {
+          const tuple = {};
+          tuple[as[0]] = v[0];
+          tuple[as[1]] = v[1];
+          return ingest$1(tuple);
+        });
+        if (this.value) out.rem = this.value;
+        this.value = out.add = out.source = values;
+      }
+
+      return out;
+    }
+
+  });
+
+  function source$1(pulse) {
+    return () => pulse.materialize(pulse.SOURCE).source;
+  }
+
+  function fieldNames(fields, as) {
+    if (!fields) return null;
+    return fields.map((f, i) => as[i] || accessorName(f));
+  }
+
+  function partition$1$1(data, groupby, field) {
+    const groups = [],
+          get = f => f(t);
+
+    let map, i, n, t, k, g; // partition data points into groups
+
+    if (groupby == null) {
+      groups.push(data.map(field));
+    } else {
+      for (map = {}, i = 0, n = data.length; i < n; ++i) {
+        t = data[i];
+        k = groupby.map(get);
+        g = map[k];
+
+        if (!g) {
+          map[k] = g = [];
+          g.dims = k;
+          groups.push(g);
+        }
+
+        g.push(field(t));
+      }
+    }
+
+    return groups;
+  }
+
+  const Output$5 = 'bin';
+  /**
+   * Dot density binning for dot plot construction.
+   * Based on Leland Wilkinson, Dot Plots, The American Statistician, 1999.
+   * https://www.cs.uic.edu/~wilkinson/Publications/dotplots.pdf
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - The value field to bin.
+   * @param {Array<function(object): *>} [params.groupby] - An array of accessors to groupby.
+   * @param {number} [params.step] - The step size (bin width) within which dots should be
+   *   stacked. Defaults to 1/30 of the extent of the data *field*.
+   * @param {boolean} [params.smooth=false] - A boolean flag indicating if dot density
+   *   stacks should be smoothed to reduce variance.
+   */
+
+  function DotBin(params) {
+    Transform.call(this, null, params);
+  }
+
+  DotBin.Definition = {
+    'type': 'DotBin',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'groupby',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'step',
+      'type': 'number'
+    }, {
+      'name': 'smooth',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'default': Output$5
+    }]
+  };
+
+  const autostep = (data, field) => span(extent(data, field)) / 30;
+
+  inherits(DotBin, Transform, {
+    transform(_, pulse) {
+      if (this.value && !(_.modified() || pulse.changed())) {
+        return pulse; // early exit
+      }
+
+      const source = pulse.materialize(pulse.SOURCE).source,
+            groups = partition$1$1(pulse.source, _.groupby, identity$6),
+            smooth = _.smooth || false,
+            field = _.field,
+            step = _.step || autostep(source, field),
+            sort = stableCompare((a, b) => field(a) - field(b)),
+            as = _.as || Output$5,
+            n = groups.length; // compute dotplot bins per group
+
+      let min = Infinity,
+          max = -Infinity,
+          i = 0,
+          j;
+
+      for (; i < n; ++i) {
+        const g = groups[i].sort(sort);
+        j = -1;
+
+        for (const v of dotbin(g, step, smooth, field)) {
+          if (v < min) min = v;
+          if (v > max) max = v;
+          g[++j][as] = v;
+        }
+      }
+
+      this.value = {
+        start: min,
+        stop: max,
+        step: step
+      };
+      return pulse.reflow(true).modifies(as);
+    }
+
+  });
+  /**
+   * Wraps an expression function with access to external parameters.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function} params.expr - The expression function. The
+   *  function should accept both a datum and a parameter object.
+   *  This operator's value will be a new function that wraps the
+   *  expression function with access to this operator's parameters.
+   */
+
+  function Expression$1(params) {
+    Operator.call(this, null, update$4, params);
+    this.modified(true);
+  }
+
+  inherits(Expression$1, Operator);
+
+  function update$4(_) {
+    const expr = _.expr;
+    return this.value && !_.modified('expr') ? this.value : accessor(datum => expr(datum, _), accessorFields(expr), accessorName(expr));
+  }
+  /**
+   * Computes extents (min/max) for a data field.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - The field over which to compute extends.
+   */
+
+
+  function Extent(params) {
+    Transform.call(this, [undefined, undefined], params);
+  }
+
+  Extent.Definition = {
+    'type': 'Extent',
+    'metadata': {},
+    'params': [{
+      'name': 'field',
+      'type': 'field',
+      'required': true
+    }]
+  };
+  inherits(Extent, Transform, {
+    transform(_, pulse) {
+      const extent = this.value,
+            field = _.field,
+            mod = pulse.changed() || pulse.modified(field.fields) || _.modified('field');
+
+      let min = extent[0],
+          max = extent[1];
+
+      if (mod || min == null) {
+        min = +Infinity;
+        max = -Infinity;
+      }
+
+      pulse.visit(mod ? pulse.SOURCE : pulse.ADD, t => {
+        const v = toNumber(field(t));
+
+        if (v != null) {
+          // NaNs will fail all comparisons!
+          if (v < min) min = v;
+          if (v > max) max = v;
+        }
+      });
+
+      if (!Number.isFinite(min) || !Number.isFinite(max)) {
+        let name = accessorName(field);
+        if (name) name = ` for field "${name}"`;
+        pulse.dataflow.warn(`Infinite extent${name}: [${min}, ${max}]`);
+        min = max = undefined;
+      }
+
+      this.value = [min, max];
+    }
+
+  });
+  /**
+   * Provides a bridge between a parent transform and a target subflow that
+   * consumes only a subset of the tuples that pass through the parent.
+   * @constructor
+   * @param {Pulse} pulse - A pulse to use as the value of this operator.
+   * @param {Transform} parent - The parent transform (typically a Facet instance).
+   */
+
+  function Subflow(pulse, parent) {
+    Operator.call(this, pulse);
+    this.parent = parent;
+    this.count = 0;
+  }
+
+  inherits(Subflow, Operator, {
+    /**
+     * Routes pulses from this subflow to a target transform.
+     * @param {Transform} target - A transform that receives the subflow of tuples.
+     */
+    connect(target) {
+      this.detachSubflow = target.detachSubflow;
+      this.targets().add(target);
+      return target.source = this;
+    },
+
+    /**
+     * Add an 'add' tuple to the subflow pulse.
+     * @param {Tuple} t - The tuple being added.
+     */
+    add(t) {
+      this.count += 1;
+      this.value.add.push(t);
+    },
+
+    /**
+     * Add a 'rem' tuple to the subflow pulse.
+     * @param {Tuple} t - The tuple being removed.
+     */
+    rem(t) {
+      this.count -= 1;
+      this.value.rem.push(t);
+    },
+
+    /**
+     * Add a 'mod' tuple to the subflow pulse.
+     * @param {Tuple} t - The tuple being modified.
+     */
+    mod(t) {
+      this.value.mod.push(t);
+    },
+
+    /**
+     * Re-initialize this operator's pulse value.
+     * @param {Pulse} pulse - The pulse to copy from.
+     * @see Pulse.init
+     */
+    init(pulse) {
+      this.value.init(pulse, pulse.NO_SOURCE);
+    },
+
+    /**
+     * Evaluate this operator. This method overrides the
+     * default behavior to simply return the contained pulse value.
+     * @return {Pulse}
+     */
+    evaluate() {
+      // assert: this.value.stamp === pulse.stamp
+      return this.value;
+    }
+
+  });
+  /**
+   * Facets a dataflow into a set of subflows based on a key.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(Dataflow, string): Operator} params.subflow - A function
+   *   that generates a subflow of operators and returns its root operator.
+   * @param {function(object): *} params.key - The key field to facet by.
+   */
+
+  function Facet$1(params) {
+    Transform.call(this, {}, params);
+    this._keys = fastmap(); // cache previously calculated key values
+    // keep track of active subflows, use as targets array for listeners
+    // this allows us to limit propagation to only updated subflows
+
+    const a = this._targets = [];
+    a.active = 0;
+
+    a.forEach = f => {
+      for (let i = 0, n = a.active; i < n; ++i) {
+        f(a[i], i, a);
+      }
+    };
+  }
+
+  inherits(Facet$1, Transform, {
+    activate(flow) {
+      this._targets[this._targets.active++] = flow;
+    },
+
+    // parent argument provided by PreFacet subclass
+    subflow(key, flow, pulse, parent) {
+      const flows = this.value;
+      let sf = has$1(flows, key) && flows[key],
+          df,
+          p;
+
+      if (!sf) {
+        p = parent || (p = this._group[key]) && p.tuple;
+        df = pulse.dataflow;
+        sf = new Subflow(pulse.fork(pulse.NO_SOURCE), this);
+        df.add(sf).connect(flow(df, key, p));
+        flows[key] = sf;
+        this.activate(sf);
+      } else if (sf.value.stamp < pulse.stamp) {
+        sf.init(pulse);
+        this.activate(sf);
+      }
+
+      return sf;
+    },
+
+    clean() {
+      const flows = this.value;
+      let detached = 0;
+
+      for (const key in flows) {
+        if (flows[key].count === 0) {
+          const detach = flows[key].detachSubflow;
+          if (detach) detach();
+          delete flows[key];
+          ++detached;
+        }
+      } // remove inactive targets from the active targets array
+
+
+      if (detached) {
+        const active = this._targets.filter(sf => sf && sf.count > 0);
+
+        this.initTargets(active);
+      }
+    },
+
+    initTargets(act) {
+      const a = this._targets,
+            n = a.length,
+            m = act ? act.length : 0;
+      let i = 0;
+
+      for (; i < m; ++i) {
+        a[i] = act[i];
+      }
+
+      for (; i < n && a[i] != null; ++i) {
+        a[i] = null; // ensure old flows can be garbage collected
+      }
+
+      a.active = m;
+    },
+
+    transform(_, pulse) {
+      const df = pulse.dataflow,
+            key = _.key,
+            flow = _.subflow,
+            cache = this._keys,
+            rekey = _.modified('key'),
+            subflow = key => this.subflow(key, flow, pulse);
+
+      this._group = _.group || {};
+      this.initTargets(); // reset list of active subflows
+
+      pulse.visit(pulse.REM, t => {
+        const id = tupleid(t),
+              k = cache.get(id);
+
+        if (k !== undefined) {
+          cache.delete(id);
+          subflow(k).rem(t);
+        }
+      });
+      pulse.visit(pulse.ADD, t => {
+        const k = key(t);
+        cache.set(tupleid(t), k);
+        subflow(k).add(t);
+      });
+
+      if (rekey || pulse.modified(key.fields)) {
+        pulse.visit(pulse.MOD, t => {
+          const id = tupleid(t),
+                k0 = cache.get(id),
+                k1 = key(t);
+
+          if (k0 === k1) {
+            subflow(k1).mod(t);
+          } else {
+            cache.set(id, k1);
+            subflow(k0).rem(t);
+            subflow(k1).add(t);
+          }
+        });
+      } else if (pulse.changed(pulse.MOD)) {
+        pulse.visit(pulse.MOD, t => {
+          subflow(cache.get(tupleid(t))).mod(t);
+        });
+      }
+
+      if (rekey) {
+        pulse.visit(pulse.REFLOW, t => {
+          const id = tupleid(t),
+                k0 = cache.get(id),
+                k1 = key(t);
+
+          if (k0 !== k1) {
+            cache.set(id, k1);
+            subflow(k0).rem(t);
+            subflow(k1).add(t);
+          }
+        });
+      }
+
+      if (pulse.clean()) {
+        df.runAfter(() => {
+          this.clean();
+          cache.clean();
+        });
+      } else if (cache.empty > df.cleanThreshold) {
+        df.runAfter(cache.clean);
+      }
+
+      return pulse;
+    }
+
+  });
+  /**
+   * Generates one or more field accessor functions.
+   * If the 'name' parameter is an array, an array of field accessors
+   * will be created and the 'as' parameter will be ignored.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {string} params.name - The field name(s) to access.
+   * @param {string} params.as - The accessor function name.
+   */
+
+  function Field$1(params) {
+    Operator.call(this, null, update$3, params);
+  }
+
+  inherits(Field$1, Operator);
+
+  function update$3(_) {
+    return this.value && !_.modified() ? this.value : isArray(_.name) ? array$5(_.name).map(f => field$1(f)) : field$1(_.name, _.as);
+  }
+  /**
+   * Filters data tuples according to a predicate function.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.expr - The predicate expression function
+   *   that determines a tuple's filter status. Truthy values pass the filter.
+   */
+
+
+  function Filter(params) {
+    Transform.call(this, fastmap(), params);
+  }
+
+  Filter.Definition = {
+    'type': 'Filter',
+    'metadata': {
+      'changes': true
+    },
+    'params': [{
+      'name': 'expr',
+      'type': 'expr',
+      'required': true
+    }]
+  };
+  inherits(Filter, Transform, {
+    transform(_, pulse) {
+      const df = pulse.dataflow,
+            cache = this.value,
+            // cache ids of filtered tuples
+      output = pulse.fork(),
+            add = output.add,
+            rem = output.rem,
+            mod = output.mod,
+            test = _.expr;
+      let isMod = true;
+      pulse.visit(pulse.REM, t => {
+        const id = tupleid(t);
+        if (!cache.has(id)) rem.push(t);else cache.delete(id);
+      });
+      pulse.visit(pulse.ADD, t => {
+        if (test(t, _)) add.push(t);else cache.set(tupleid(t), 1);
+      });
+
+      function revisit(t) {
+        const id = tupleid(t),
+              b = test(t, _),
+              s = cache.get(id);
+
+        if (b && s) {
+          cache.delete(id);
+          add.push(t);
+        } else if (!b && !s) {
+          cache.set(id, 1);
+          rem.push(t);
+        } else if (isMod && b && !s) {
+          mod.push(t);
+        }
+      }
+
+      pulse.visit(pulse.MOD, revisit);
+
+      if (_.modified()) {
+        isMod = false;
+        pulse.visit(pulse.REFLOW, revisit);
+      }
+
+      if (cache.empty > df.cleanThreshold) df.runAfter(cache.clean);
+      return output;
+    }
+
+  });
+  /**
+   * Flattens array-typed field values into new data objects.
+   * If multiple fields are specified, they are treated as parallel arrays,
+   * with output values included for each matching index (or null if missing).
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<function(object): *>} params.fields - An array of field
+   *   accessors for the tuple fields that should be flattened.
+   * @param {string} [params.index] - Optional output field name for index
+   *   value. If unspecified, no index field is included in the output.
+   * @param {Array<string>} [params.as] - Output field names for flattened
+   *   array fields. Any unspecified fields will use the field name provided
+   *   by the fields accessors.
+   */
+
+  function Flatten(params) {
+    Transform.call(this, [], params);
+  }
+
+  Flatten.Definition = {
+    'type': 'Flatten',
+    'metadata': {
+      'generates': true
+    },
+    'params': [{
+      'name': 'fields',
+      'type': 'field',
+      'array': true,
+      'required': true
+    }, {
+      'name': 'index',
+      'type': 'string'
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true
+    }]
+  };
+  inherits(Flatten, Transform, {
+    transform(_, pulse) {
+      const out = pulse.fork(pulse.NO_SOURCE),
+            fields = _.fields,
+            as = fieldNames(fields, _.as || []),
+            index = _.index || null,
+            m = as.length; // remove any previous results
+
+      out.rem = this.value; // generate flattened tuples
+
+      pulse.visit(pulse.SOURCE, t => {
+        const arrays = fields.map(f => f(t)),
+              maxlen = arrays.reduce((l, a) => Math.max(l, a.length), 0);
+        let i = 0,
+            j,
+            d,
+            v;
+
+        for (; i < maxlen; ++i) {
+          d = derive(t);
+
+          for (j = 0; j < m; ++j) {
+            d[as[j]] = (v = arrays[j][i]) == null ? null : v;
+          }
+
+          if (index) {
+            d[index] = i;
+          }
+
+          out.add.push(d);
+        }
+      });
+      this.value = out.source = out.add;
+      if (index) out.modifies(index);
+      return out.modifies(as);
+    }
+
+  });
+  /**
+   * Folds one more tuple fields into multiple tuples in which the field
+   * name and values are available under new 'key' and 'value' fields.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.fields - An array of field accessors
+   *   for the tuple fields that should be folded.
+   * @param {Array<string>} [params.as] - Output field names for folded key
+   *   and value fields, defaults to ['key', 'value'].
+   */
+
+  function Fold(params) {
+    Transform.call(this, [], params);
+  }
+
+  Fold.Definition = {
+    'type': 'Fold',
+    'metadata': {
+      'generates': true
+    },
+    'params': [{
+      'name': 'fields',
+      'type': 'field',
+      'array': true,
+      'required': true
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': 2,
+      'default': ['key', 'value']
+    }]
+  };
+  inherits(Fold, Transform, {
+    transform(_, pulse) {
+      const out = pulse.fork(pulse.NO_SOURCE),
+            fields = _.fields,
+            fnames = fields.map(accessorName),
+            as = _.as || ['key', 'value'],
+            k = as[0],
+            v = as[1],
+            n = fields.length;
+      out.rem = this.value;
+      pulse.visit(pulse.SOURCE, t => {
+        for (let i = 0, d; i < n; ++i) {
+          d = derive(t);
+          d[k] = fnames[i];
+          d[v] = fields[i](t);
+          out.add.push(d);
+        }
+      });
+      this.value = out.source = out.add;
+      return out.modifies(as);
+    }
+
+  });
+  /**
+   * Invokes a function for each data tuple and saves the results as a new field.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.expr - The formula function to invoke for each tuple.
+   * @param {string} params.as - The field name under which to save the result.
+   * @param {boolean} [params.initonly=false] - If true, the formula is applied to
+   *   added tuples only, and does not update in response to modifications.
+   */
+
+  function Formula(params) {
+    Transform.call(this, null, params);
+  }
+
+  Formula.Definition = {
+    'type': 'Formula',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'expr',
+      'type': 'expr',
+      'required': true
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'required': true
+    }, {
+      'name': 'initonly',
+      'type': 'boolean'
+    }]
+  };
+  inherits(Formula, Transform, {
+    transform(_, pulse) {
+      const func = _.expr,
+            as = _.as,
+            mod = _.modified(),
+            flag = _.initonly ? pulse.ADD : mod ? pulse.SOURCE : pulse.modified(func.fields) || pulse.modified(as) ? pulse.ADD_MOD : pulse.ADD;
+
+      if (mod) {
+        // parameters updated, need to reflow
+        pulse = pulse.materialize().reflow(true);
+      }
+
+      if (!_.initonly) {
+        pulse.modifies(as);
+      }
+
+      return pulse.visit(flag, t => t[as] = func(t, _));
+    }
+
+  });
+  /**
+   * Generates data tuples using a provided generator function.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(Parameters): object} params.generator - A tuple generator
+   *   function. This function is given the operator parameters as input.
+   *   Changes to any additional parameters will not trigger re-calculation
+   *   of previously generated tuples. Only future tuples are affected.
+   * @param {number} params.size - The number of tuples to produce.
+   */
+
+  function Generate(params) {
+    Transform.call(this, [], params);
+  }
+
+  inherits(Generate, Transform, {
+    transform(_, pulse) {
+      const out = pulse.fork(pulse.ALL),
+            gen = _.generator;
+      let data = this.value,
+          num = _.size - data.length,
+          add,
+          rem,
+          t;
+
+      if (num > 0) {
+        // need more tuples, generate and add
+        for (add = []; --num >= 0;) {
+          add.push(t = ingest$1(gen(_)));
+          data.push(t);
+        }
+
+        out.add = out.add.length ? out.materialize(out.ADD).add.concat(add) : add;
+      } else {
+        // need fewer tuples, remove
+        rem = data.slice(0, -num);
+        out.rem = out.rem.length ? out.materialize(out.REM).rem.concat(rem) : rem;
+        data = data.slice(-num);
+      }
+
+      out.source = this.value = data;
+      return out;
+    }
+
+  });
+  const Methods$1 = {
+    value: 'value',
+    median: median,
+    mean: mean,
+    min: min$2,
+    max: max$2
+  };
+  const Empty$1 = [];
+  /**
+   * Impute missing values.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - The value field to impute.
+   * @param {Array<function(object): *>} [params.groupby] - An array of
+   *   accessors to determine series within which to perform imputation.
+   * @param {function(object): *} params.key - An accessor for a key value.
+   *   Each key value should be unique within a group. New tuples will be
+   *   imputed for any key values that are not found within a group.
+   * @param {Array<*>} [params.keyvals] - Optional array of required key
+   *   values. New tuples will be imputed for any key values that are not
+   *   found within a group. In addition, these values will be automatically
+   *   augmented with the key values observed in the input data.
+   * @param {string} [method='value'] - The imputation method to use. One of
+   *   'value', 'mean', 'median', 'max', 'min'.
+   * @param {*} [value=0] - The constant value to use for imputation
+   *   when using method 'value'.
+   */
+
+  function Impute(params) {
+    Transform.call(this, [], params);
+  }
+
+  Impute.Definition = {
+    'type': 'Impute',
+    'metadata': {
+      'changes': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'key',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'keyvals',
+      'array': true
+    }, {
+      'name': 'groupby',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'method',
+      'type': 'enum',
+      'default': 'value',
+      'values': ['value', 'mean', 'median', 'max', 'min']
+    }, {
+      'name': 'value',
+      'default': 0
+    }]
+  };
+
+  function getValue(_) {
+    var m = _.method || Methods$1.value,
+        v;
+
+    if (Methods$1[m] == null) {
+      error('Unrecognized imputation method: ' + m);
+    } else if (m === Methods$1.value) {
+      v = _.value !== undefined ? _.value : 0;
+      return () => v;
+    } else {
+      return Methods$1[m];
+    }
+  }
+
+  function getField$1(_) {
+    const f = _.field;
+    return t => t ? f(t) : NaN;
+  }
+
+  inherits(Impute, Transform, {
+    transform(_, pulse) {
+      var out = pulse.fork(pulse.ALL),
+          impute = getValue(_),
+          field = getField$1(_),
+          fName = accessorName(_.field),
+          kName = accessorName(_.key),
+          gNames = (_.groupby || []).map(accessorName),
+          groups = partition$4(pulse.source, _.groupby, _.key, _.keyvals),
+          curr = [],
+          prev = this.value,
+          m = groups.domain.length,
+          group,
+          value,
+          gVals,
+          kVal,
+          g,
+          i,
+          j,
+          l,
+          n,
+          t;
+
+      for (g = 0, l = groups.length; g < l; ++g) {
+        group = groups[g];
+        gVals = group.values;
+        value = NaN; // add tuples for missing values
+
+        for (j = 0; j < m; ++j) {
+          if (group[j] != null) continue;
+          kVal = groups.domain[j];
+          t = {
+            _impute: true
+          };
+
+          for (i = 0, n = gVals.length; i < n; ++i) t[gNames[i]] = gVals[i];
+
+          t[kName] = kVal;
+          t[fName] = Number.isNaN(value) ? value = impute(group, field) : value;
+          curr.push(ingest$1(t));
+        }
+      } // update pulse with imputed tuples
+
+
+      if (curr.length) out.add = out.materialize(out.ADD).add.concat(curr);
+      if (prev.length) out.rem = out.materialize(out.REM).rem.concat(prev);
+      this.value = curr;
+      return out;
+    }
+
+  });
+
+  function partition$4(data, groupby, key, keyvals) {
+    var get = f => f(t),
+        groups = [],
+        domain = keyvals ? keyvals.slice() : [],
+        kMap = {},
+        gMap = {},
+        gVals,
+        gKey,
+        group,
+        i,
+        j,
+        k,
+        n,
+        t;
+
+    domain.forEach((k, i) => kMap[k] = i + 1);
+
+    for (i = 0, n = data.length; i < n; ++i) {
+      t = data[i];
+      k = key(t);
+      j = kMap[k] || (kMap[k] = domain.push(k));
+      gKey = (gVals = groupby ? groupby.map(get) : Empty$1) + '';
+
+      if (!(group = gMap[gKey])) {
+        group = gMap[gKey] = [];
+        groups.push(group);
+        group.values = gVals;
+      }
+
+      group[j - 1] = t;
+    }
+
+    groups.domain = domain;
+    return groups;
+  }
+  /**
+   * Extend input tuples with aggregate values.
+   * Calcuates aggregate values and joins them with the input stream.
+   * @constructor
+   */
+
+
+  function JoinAggregate(params) {
+    Aggregate$1.call(this, params);
+  }
+
+  JoinAggregate.Definition = {
+    'type': 'JoinAggregate',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'groupby',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'fields',
+      'type': 'field',
+      'null': true,
+      'array': true
+    }, {
+      'name': 'ops',
+      'type': 'enum',
+      'array': true,
+      'values': ValidAggregateOps
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'null': true,
+      'array': true
+    }, {
+      'name': 'key',
+      'type': 'field'
+    }]
+  };
+  inherits(JoinAggregate, Aggregate$1, {
+    transform(_, pulse) {
+      const aggr = this,
+            mod = _.modified();
+
+      let cells; // process all input tuples to calculate aggregates
+
+      if (aggr.value && (mod || pulse.modified(aggr._inputs, true))) {
+        cells = aggr.value = mod ? aggr.init(_) : {};
+        pulse.visit(pulse.SOURCE, t => aggr.add(t));
+      } else {
+        cells = aggr.value = aggr.value || this.init(_);
+        pulse.visit(pulse.REM, t => aggr.rem(t));
+        pulse.visit(pulse.ADD, t => aggr.add(t));
+      } // update aggregation cells
+
+
+      aggr.changes(); // write aggregate values to input tuples
+
+      pulse.visit(pulse.SOURCE, t => {
+        extend$1(t, cells[aggr.cellkey(t)].tuple);
+      });
+      return pulse.reflow(mod).modifies(this._outputs);
+    },
+
+    changes() {
+      const adds = this._adds,
+            mods = this._mods;
+      let i, n;
+
+      for (i = 0, n = this._alen; i < n; ++i) {
+        this.celltuple(adds[i]);
+        adds[i] = null; // for garbage collection
+      }
+
+      for (i = 0, n = this._mlen; i < n; ++i) {
+        this.celltuple(mods[i]);
+        mods[i] = null; // for garbage collection
+      }
+
+      this._alen = this._mlen = 0; // reset list of active cells
+    }
+
+  });
+  /**
+   * Compute kernel density estimates (KDE) for one or more data groups.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<function(object): *>} [params.groupby] - An array of accessors
+   *   to groupby.
+   * @param {function(object): *} params.field - An accessor for the data field
+   *   to estimate.
+   * @param {number} [params.bandwidth=0] - The KDE kernel bandwidth.
+   *   If zero or unspecified, the bandwidth is automatically determined.
+   * @param {boolean} [params.counts=false] - A boolean flag indicating if the
+   *   output values should be probability estimates (false, default) or
+   *   smoothed counts (true).
+   * @param {string} [params.cumulative=false] - A boolean flag indicating if a
+   *   density (false) or cumulative distribution (true) should be generated.
+   * @param {Array<number>} [params.extent] - The domain extent over which to
+   *   plot the density. If unspecified, the [min, max] data extent is used.
+   * @param {string} [params.resolve='independent'] - Indicates how parameters for
+   *   multiple densities should be resolved. If "independent" (the default), each
+   *   density may have its own domain extent and dynamic number of curve sample
+   *   steps. If "shared", the KDE transform will ensure that all densities are
+   *   defined over a shared domain and curve steps, enabling stacking.
+   * @param {number} [params.minsteps=25] - The minimum number of curve samples
+   *   for plotting the density.
+   * @param {number} [params.maxsteps=200] - The maximum number of curve samples
+   *   for plotting the density.
+   * @param {number} [params.steps] - The exact number of curve samples for
+   *   plotting the density. If specified, overrides both minsteps and maxsteps
+   *   to set an exact number of uniform samples. Useful in conjunction with
+   *   a fixed extent to ensure consistent sample points for stacked densities.
+   */
+
+  function KDE(params) {
+    Transform.call(this, null, params);
+  }
+
+  KDE.Definition = {
+    'type': 'KDE',
+    'metadata': {
+      'generates': true
+    },
+    'params': [{
+      'name': 'groupby',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'field',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'cumulative',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'counts',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'bandwidth',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'extent',
+      'type': 'number',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'resolve',
+      'type': 'enum',
+      'values': ['shared', 'independent'],
+      'default': 'independent'
+    }, {
+      'name': 'steps',
+      'type': 'number'
+    }, {
+      'name': 'minsteps',
+      'type': 'number',
+      'default': 25
+    }, {
+      'name': 'maxsteps',
+      'type': 'number',
+      'default': 200
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'default': ['value', 'density']
+    }]
+  };
+  inherits(KDE, Transform, {
+    transform(_, pulse) {
+      const out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS);
+
+      if (!this.value || pulse.changed() || _.modified()) {
+        const source = pulse.materialize(pulse.SOURCE).source,
+              groups = partition$1$1(source, _.groupby, _.field),
+              names = (_.groupby || []).map(accessorName),
+              bandwidth = _.bandwidth,
+              method = _.cumulative ? 'cdf' : 'pdf',
+              as = _.as || ['value', 'density'],
+              values = [];
+        let domain = _.extent,
+            minsteps = _.steps || _.minsteps || 25,
+            maxsteps = _.steps || _.maxsteps || 200;
+
+        if (method !== 'pdf' && method !== 'cdf') {
+          error('Invalid density method: ' + method);
+        }
+
+        if (_.resolve === 'shared') {
+          if (!domain) domain = extent(source, _.field);
+          minsteps = maxsteps = _.steps || maxsteps;
+        }
+
+        groups.forEach(g => {
+          const density = kde(g, bandwidth)[method],
+                scale = _.counts ? g.length : 1,
+                local = domain || extent(g);
+          sampleCurve(density, local, minsteps, maxsteps).forEach(v => {
+            const t = {};
+
+            for (let i = 0; i < names.length; ++i) {
+              t[names[i]] = g.dims[i];
+            }
+
+            t[as[0]] = v[0];
+            t[as[1]] = v[1] * scale;
+            values.push(ingest$1(t));
+          });
+        });
+        if (this.value) out.rem = this.value;
+        this.value = out.add = out.source = values;
+      }
+
+      return out;
+    }
+
+  });
+  /**
+   * Generates a key function.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<string>} params.fields - The field name(s) for the key function.
+   * @param {boolean} params.flat - A boolean flag indicating if the field names
+   *  should be treated as flat property names, side-stepping nested field
+   *  lookups normally indicated by dot or bracket notation.
+   */
+
+  function Key$1(params) {
+    Operator.call(this, null, update$2, params);
+  }
+
+  inherits(Key$1, Operator);
+
+  function update$2(_) {
+    return this.value && !_.modified() ? this.value : key(_.fields, _.flat);
+  }
+  /**
+   * Load and parse data from an external source. Marshalls parameter
+   * values and then invokes the Dataflow request method.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {string} params.url - The URL to load from.
+   * @param {object} params.format - The data format options.
+   */
+
+
+  function Load$1(params) {
+    Transform.call(this, [], params);
+    this._pending = null;
+  }
+
+  inherits(Load$1, Transform, {
+    transform(_, pulse) {
+      const df = pulse.dataflow;
+
+      if (this._pending) {
+        // update state and return pulse
+        return output(this, pulse, this._pending);
+      }
+
+      if (stop(_)) return pulse.StopPropagation;
+
+      if (_.values) {
+        // parse and ingest values, return output pulse
+        return output(this, pulse, df.parse(_.values, _.format));
+      } else if (_.async) {
+        // return promise for non-blocking async loading
+        const p = df.request(_.url, _.format).then(res => {
+          this._pending = array$5(res.data);
+          return df => df.touch(this);
+        });
+        return {
+          async: p
+        };
+      } else {
+        // return promise for synchronous loading
+        return df.request(_.url, _.format).then(res => output(this, pulse, array$5(res.data)));
+      }
+    }
+
+  });
+
+  function stop(_) {
+    return _.modified('async') && !(_.modified('values') || _.modified('url') || _.modified('format'));
+  }
+
+  function output(op, pulse, data) {
+    data.forEach(ingest$1);
+    const out = pulse.fork(pulse.NO_FIELDS & pulse.NO_SOURCE);
+    out.rem = op.value;
+    op.value = out.source = out.add = data;
+    op._pending = null;
+    if (out.rem.length) out.clean(true);
+    return out;
+  }
+  /**
+   * Extend tuples by joining them with values from a lookup table.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Map} params.index - The lookup table map.
+   * @param {Array<function(object): *} params.fields - The fields to lookup.
+   * @param {Array<string>} params.as - Output field names for each lookup value.
+   * @param {*} [params.default] - A default value to use if lookup fails.
+   */
+
+
+  function Lookup(params) {
+    Transform.call(this, {}, params);
+  }
+
+  Lookup.Definition = {
+    'type': 'Lookup',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'index',
+      'type': 'index',
+      'params': [{
+        'name': 'from',
+        'type': 'data',
+        'required': true
+      }, {
+        'name': 'key',
+        'type': 'field',
+        'required': true
+      }]
+    }, {
+      'name': 'values',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'fields',
+      'type': 'field',
+      'array': true,
+      'required': true
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true
+    }, {
+      'name': 'default',
+      'default': null
+    }]
+  };
+  inherits(Lookup, Transform, {
+    transform(_, pulse) {
+      const keys = _.fields,
+            index = _.index,
+            values = _.values,
+            defaultValue = _.default == null ? null : _.default,
+            reset = _.modified(),
+            n = keys.length;
+
+      let flag = reset ? pulse.SOURCE : pulse.ADD,
+          out = pulse,
+          as = _.as,
+          set,
+          m,
+          mods;
+
+      if (values) {
+        m = values.length;
+
+        if (n > 1 && !as) {
+          error('Multi-field lookup requires explicit "as" parameter.');
+        }
+
+        if (as && as.length !== n * m) {
+          error('The "as" parameter has too few output field names.');
+        }
+
+        as = as || values.map(accessorName);
+
+        set = function (t) {
+          for (var i = 0, k = 0, j, v; i < n; ++i) {
+            v = index.get(keys[i](t));
+            if (v == null) for (j = 0; j < m; ++j, ++k) t[as[k]] = defaultValue;else for (j = 0; j < m; ++j, ++k) t[as[k]] = values[j](v);
+          }
+        };
+      } else {
+        if (!as) {
+          error('Missing output field names.');
+        }
+
+        set = function (t) {
+          for (var i = 0, v; i < n; ++i) {
+            v = index.get(keys[i](t));
+            t[as[i]] = v == null ? defaultValue : v;
+          }
+        };
+      }
+
+      if (reset) {
+        out = pulse.reflow(true);
+      } else {
+        mods = keys.some(k => pulse.modified(k.fields));
+        flag |= mods ? pulse.MOD : 0;
+      }
+
+      pulse.visit(flag, set);
+      return out.modifies(as);
+    }
+
+  });
+  /**
+   * Computes global min/max extents over a collection of extents.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<Array<number>>} params.extents - The input extents.
+   */
+
+  function MultiExtent$1(params) {
+    Operator.call(this, null, update$1, params);
+  }
+
+  inherits(MultiExtent$1, Operator);
+
+  function update$1(_) {
+    if (this.value && !_.modified()) {
+      return this.value;
+    }
+
+    const ext = _.extents,
+          n = ext.length;
+    let min = +Infinity,
+        max = -Infinity,
+        i,
+        e;
+
+    for (i = 0; i < n; ++i) {
+      e = ext[i];
+      if (e[0] < min) min = e[0];
+      if (e[1] > max) max = e[1];
+    }
+
+    return [min, max];
+  }
+  /**
+   * Merge a collection of value arrays.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<Array<*>>} params.values - The input value arrrays.
+   */
+
+
+  function MultiValues$1(params) {
+    Operator.call(this, null, update, params);
+  }
+
+  inherits(MultiValues$1, Operator);
+
+  function update(_) {
+    return this.value && !_.modified() ? this.value : _.values.reduce((data, _) => data.concat(_), []);
+  }
+  /**
+   * Operator whose value is simply its parameter hash. This operator is
+   * useful for enabling reactive updates to values of nested objects.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   */
+
+
+  function Params$2(params) {
+    Transform.call(this, null, params);
+  }
+
+  inherits(Params$2, Transform, {
+    transform(_, pulse) {
+      this.modified(_.modified());
+      this.value = _;
+      return pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS); // do not pass tuples
+    }
+
+  });
+  /**
+   * Aggregate and pivot selected field values to become new fields.
+   * This operator is useful to construction cross-tabulations.
+   * @constructor
+   * @param {Array<function(object): *>} [params.groupby] - An array of accessors
+   *  to groupby. These fields act just like groupby fields of an Aggregate transform.
+   * @param {function(object): *} params.field - The field to pivot on. The unique
+   *  values of this field become new field names in the output stream.
+   * @param {function(object): *} params.value - The field to populate pivoted fields.
+   *  The aggregate values of this field become the values of the new pivoted fields.
+   * @param {string} [params.op] - The aggregation operation for the value field,
+   *  applied per cell in the output stream. The default is "sum".
+   * @param {number} [params.limit] - An optional parameter indicating the maximum
+   *  number of pivoted fields to generate. The pivoted field names are sorted in
+   *  ascending order prior to enforcing the limit.
+   */
+
+  function Pivot(params) {
+    Aggregate$1.call(this, params);
+  }
+
+  Pivot.Definition = {
+    'type': 'Pivot',
+    'metadata': {
+      'generates': true,
+      'changes': true
+    },
+    'params': [{
+      'name': 'groupby',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'field',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'value',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'op',
+      'type': 'enum',
+      'values': ValidAggregateOps,
+      'default': 'sum'
+    }, {
+      'name': 'limit',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'key',
+      'type': 'field'
+    }]
+  };
+  inherits(Pivot, Aggregate$1, {
+    _transform: Aggregate$1.prototype.transform,
+
+    transform(_, pulse) {
+      return this._transform(aggregateParams(_, pulse), pulse);
+    }
+
+  }); // Shoehorn a pivot transform into an aggregate transform!
+  // First collect all unique pivot field values.
+  // Then generate aggregate fields for each output pivot field.
+
+  function aggregateParams(_, pulse) {
+    const key = _.field,
+          value = _.value,
+          op = (_.op === 'count' ? '__count__' : _.op) || 'sum',
+          fields = accessorFields(key).concat(accessorFields(value)),
+          keys = pivotKeys(key, _.limit || 0, pulse); // if data stream content changes, pivot fields may change
+    // flag parameter modification to ensure re-initialization
+
+    if (pulse.changed()) _.set('__pivot__', null, null, true);
+    return {
+      key: _.key,
+      groupby: _.groupby,
+      ops: keys.map(() => op),
+      fields: keys.map(k => get$4(k, key, value, fields)),
+      as: keys.map(k => k + ''),
+      modified: _.modified.bind(_)
+    };
+  } // Generate aggregate field accessor.
+  // Output NaN for non-existent values; aggregator will ignore!
+
+
+  function get$4(k, key, value, fields) {
+    return accessor(d => key(d) === k ? value(d) : NaN, fields, k + '');
+  } // Collect (and optionally limit) all unique pivot values.
+
+
+  function pivotKeys(key, limit, pulse) {
+    const map = {},
+          list = [];
+    pulse.visit(pulse.SOURCE, t => {
+      const k = key(t);
+
+      if (!map[k]) {
+        map[k] = 1;
+        list.push(k);
+      }
+    });
+    list.sort(ascending$3);
+    return limit ? list.slice(0, limit) : list;
+  }
+  /**
+   * Partitions pre-faceted data into tuple subflows.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(Dataflow, string): Operator} params.subflow - A function
+   *   that generates a subflow of operators and returns its root operator.
+   * @param {function(object): Array<object>} params.field - The field
+   *   accessor for an array of subflow tuple objects.
+   */
+
+
+  function PreFacet$1(params) {
+    Facet$1.call(this, params);
+  }
+
+  inherits(PreFacet$1, Facet$1, {
+    transform(_, pulse) {
+      const flow = _.subflow,
+            field = _.field,
+            subflow = t => this.subflow(tupleid(t), flow, pulse, t);
+
+      if (_.modified('field') || field && pulse.modified(accessorFields(field))) {
+        error('PreFacet does not support field modification.');
+      }
+
+      this.initTargets(); // reset list of active subflows
+
+      if (field) {
+        pulse.visit(pulse.MOD, t => {
+          const sf = subflow(t);
+          field(t).forEach(_ => sf.mod(_));
+        });
+        pulse.visit(pulse.ADD, t => {
+          const sf = subflow(t);
+          field(t).forEach(_ => sf.add(ingest$1(_)));
+        });
+        pulse.visit(pulse.REM, t => {
+          const sf = subflow(t);
+          field(t).forEach(_ => sf.rem(_));
+        });
+      } else {
+        pulse.visit(pulse.MOD, t => subflow(t).mod(t));
+        pulse.visit(pulse.ADD, t => subflow(t).add(t));
+        pulse.visit(pulse.REM, t => subflow(t).rem(t));
+      }
+
+      if (pulse.clean()) {
+        pulse.runAfter(() => this.clean());
+      }
+
+      return pulse;
+    }
+
+  });
+  /**
+   * Performs a relational projection, copying selected fields from source
+   * tuples to a new set of derived tuples.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<function(object): *} params.fields - The fields to project,
+   *   as an array of field accessors. If unspecified, all fields will be
+   *   copied with names unchanged.
+   * @param {Array<string>} [params.as] - Output field names for each projected
+   *   field. Any unspecified fields will use the field name provided by
+   *   the field accessor.
+   */
+
+  function Project(params) {
+    Transform.call(this, null, params);
+  }
+
+  Project.Definition = {
+    'type': 'Project',
+    'metadata': {
+      'generates': true,
+      'changes': true
+    },
+    'params': [{
+      'name': 'fields',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'null': true,
+      'array': true
+    }]
+  };
+  inherits(Project, Transform, {
+    transform(_, pulse) {
+      const out = pulse.fork(pulse.NO_SOURCE),
+            fields = _.fields,
+            as = fieldNames(_.fields, _.as || []),
+            derive = fields ? (s, t) => project(s, t, fields, as) : rederive;
+      let lut;
+
+      if (this.value) {
+        lut = this.value;
+      } else {
+        pulse = pulse.addAll();
+        lut = this.value = {};
+      }
+
+      pulse.visit(pulse.REM, t => {
+        const id = tupleid(t);
+        out.rem.push(lut[id]);
+        lut[id] = null;
+      });
+      pulse.visit(pulse.ADD, t => {
+        const dt = derive(t, ingest$1({}));
+        lut[tupleid(t)] = dt;
+        out.add.push(dt);
+      });
+      pulse.visit(pulse.MOD, t => {
+        out.mod.push(derive(t, lut[tupleid(t)]));
+      });
+      return out;
+    }
+
+  });
+
+  function project(s, t, fields, as) {
+    for (let i = 0, n = fields.length; i < n; ++i) {
+      t[as[i]] = fields[i](s);
+    }
+
+    return t;
+  }
+  /**
+   * Proxy the value of another operator as a pure signal value.
+   * Ensures no tuples are propagated.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {*} params.value - The value to proxy, becomes the value of this operator.
+   */
+
+
+  function Proxy$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  inherits(Proxy$1, Transform, {
+    transform(_, pulse) {
+      this.value = _.value;
+      return _.modified('value') ? pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS) : pulse.StopPropagation;
+    }
+
+  });
+  /**
+   * Generates sample quantile values from an input data stream.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - An accessor for the data field
+   *   over which to calculate quantile values.
+   * @param {Array<function(object): *>} [params.groupby] - An array of accessors
+   *   to groupby.
+   * @param {Array<number>} [params.probs] - An array of probabilities in
+   *   the range (0, 1) for which to compute quantile values. If not specified,
+   *   the *step* parameter will be used.
+   * @param {Array<number>} [params.step=0.01] - A probability step size for
+   *   sampling quantile values. All values from one-half the step size up to
+   *   1 (exclusive) will be sampled. This parameter is only used if the
+   *   *quantiles* parameter is not provided.
+   */
+
+  function Quantile$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  Quantile$1.Definition = {
+    'type': 'Quantile',
+    'metadata': {
+      'generates': true,
+      'changes': true
+    },
+    'params': [{
+      'name': 'groupby',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'field',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'probs',
+      'type': 'number',
+      'array': true
+    }, {
+      'name': 'step',
+      'type': 'number',
+      'default': 0.01
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'default': ['prob', 'value']
+    }]
+  };
+  const EPSILON$2 = 1e-14;
+  inherits(Quantile$1, Transform, {
+    transform(_, pulse) {
+      const out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS),
+            as = _.as || ['prob', 'value'];
+
+      if (this.value && !_.modified() && !pulse.changed()) {
+        out.source = this.value;
+        return out;
+      }
+
+      const source = pulse.materialize(pulse.SOURCE).source,
+            groups = partition$1$1(source, _.groupby, _.field),
+            names = (_.groupby || []).map(accessorName),
+            values = [],
+            step = _.step || 0.01,
+            p = _.probs || range$1$1(step / 2, 1 - EPSILON$2, step),
+            n = p.length;
+      groups.forEach(g => {
+        const q = quantiles(g, p);
+
+        for (let i = 0; i < n; ++i) {
+          const t = {};
+
+          for (let i = 0; i < names.length; ++i) {
+            t[names[i]] = g.dims[i];
+          }
+
+          t[as[0]] = p[i];
+          t[as[1]] = q[i];
+          values.push(ingest$1(t));
+        }
+      });
+      if (this.value) out.rem = this.value;
+      this.value = out.add = out.source = values;
+      return out;
+    }
+
+  });
+  /**
+   * Relays a data stream between data processing pipelines.
+   * If the derive parameter is set, this transform will create derived
+   * copies of observed tuples. This provides derived data streams in which
+   * modifications to the tuples do not pollute an upstream data source.
+   * @param {object} params - The parameters for this operator.
+   * @param {number} [params.derive=false] - Boolean flag indicating if
+   *   the transform should make derived copies of incoming tuples.
+   * @constructor
+   */
+
+  function Relay$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  inherits(Relay$1, Transform, {
+    transform(_, pulse) {
+      let out, lut;
+
+      if (this.value) {
+        lut = this.value;
+      } else {
+        out = pulse = pulse.addAll();
+        lut = this.value = {};
+      }
+
+      if (_.derive) {
+        out = pulse.fork(pulse.NO_SOURCE);
+        pulse.visit(pulse.REM, t => {
+          const id = tupleid(t);
+          out.rem.push(lut[id]);
+          lut[id] = null;
+        });
+        pulse.visit(pulse.ADD, t => {
+          const dt = derive(t);
+          lut[tupleid(t)] = dt;
+          out.add.push(dt);
+        });
+        pulse.visit(pulse.MOD, t => {
+          const dt = lut[tupleid(t)];
+
+          for (const k in t) {
+            dt[k] = t[k]; // down stream writes may overwrite re-derived tuples
+            // conservatively mark all source fields as modified
+
+            out.modifies(k);
+          }
+
+          out.mod.push(dt);
+        });
+      }
+
+      return out;
+    }
+
+  });
+  /**
+   * Samples tuples passing through this operator.
+   * Uses reservoir sampling to maintain a representative sample.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {number} [params.size=1000] - The maximum number of samples.
+   */
+
+  function Sample(params) {
+    Transform.call(this, [], params);
+    this.count = 0;
+  }
+
+  Sample.Definition = {
+    'type': 'Sample',
+    'metadata': {},
+    'params': [{
+      'name': 'size',
+      'type': 'number',
+      'default': 1000
+    }]
+  };
+  inherits(Sample, Transform, {
+    transform(_, pulse) {
+      const out = pulse.fork(pulse.NO_SOURCE),
+            mod = _.modified('size'),
+            num = _.size,
+            map = this.value.reduce((m, t) => (m[tupleid(t)] = 1, m), {});
+
+      let res = this.value,
+          cnt = this.count,
+          cap = 0; // sample reservoir update function
+
+      function update(t) {
+        let p, idx;
+
+        if (res.length < num) {
+          res.push(t);
+        } else {
+          idx = ~~((cnt + 1) * exports.random());
+
+          if (idx < res.length && idx >= cap) {
+            p = res[idx];
+            if (map[tupleid(p)]) out.rem.push(p); // eviction
+
+            res[idx] = t;
+          }
+        }
+
+        ++cnt;
+      }
+
+      if (pulse.rem.length) {
+        // find all tuples that should be removed, add to output
+        pulse.visit(pulse.REM, t => {
+          const id = tupleid(t);
+
+          if (map[id]) {
+            map[id] = -1;
+            out.rem.push(t);
+          }
+
+          --cnt;
+        }); // filter removed tuples out of the sample reservoir
+
+        res = res.filter(t => map[tupleid(t)] !== -1);
+      }
+
+      if ((pulse.rem.length || mod) && res.length < num && pulse.source) {
+        // replenish sample if backing data source is available
+        cap = cnt = res.length;
+        pulse.visit(pulse.SOURCE, t => {
+          // update, but skip previously sampled tuples
+          if (!map[tupleid(t)]) update(t);
+        });
+        cap = -1;
+      }
+
+      if (mod && res.length > num) {
+        const n = res.length - num;
+
+        for (let i = 0; i < n; ++i) {
+          map[tupleid(res[i])] = -1;
+          out.rem.push(res[i]);
+        }
+
+        res = res.slice(n);
+      }
+
+      if (pulse.mod.length) {
+        // propagate modified tuples in the sample reservoir
+        pulse.visit(pulse.MOD, t => {
+          if (map[tupleid(t)]) out.mod.push(t);
+        });
+      }
+
+      if (pulse.add.length) {
+        // update sample reservoir
+        pulse.visit(pulse.ADD, update);
+      }
+
+      if (pulse.add.length || cap < 0) {
+        // output newly added tuples
+        out.add = res.filter(t => !map[tupleid(t)]);
+      }
+
+      this.count = cnt;
+      this.value = out.source = res;
+      return out;
+    }
+
+  });
+  /**
+   * Generates data tuples for a specified sequence range of numbers.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {number} params.start - The first number in the sequence.
+   * @param {number} params.stop - The last number (exclusive) in the sequence.
+   * @param {number} [params.step=1] - The step size between numbers in the sequence.
+   */
+
+  function Sequence(params) {
+    Transform.call(this, null, params);
+  }
+
+  Sequence.Definition = {
+    'type': 'Sequence',
+    'metadata': {
+      'generates': true,
+      'changes': true
+    },
+    'params': [{
+      'name': 'start',
+      'type': 'number',
+      'required': true
+    }, {
+      'name': 'stop',
+      'type': 'number',
+      'required': true
+    }, {
+      'name': 'step',
+      'type': 'number',
+      'default': 1
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'default': 'data'
+    }]
+  };
+  inherits(Sequence, Transform, {
+    transform(_, pulse) {
+      if (this.value && !_.modified()) return;
+      const out = pulse.materialize().fork(pulse.MOD),
+            as = _.as || 'data';
+      out.rem = this.value ? pulse.rem.concat(this.value) : pulse.rem;
+      this.value = range$1$1(_.start, _.stop, _.step || 1).map(v => {
+        const t = {};
+        t[as] = v;
+        return ingest$1(t);
+      });
+      out.add = pulse.add.concat(this.value);
+      return out;
+    }
+
+  });
+  /**
+   * Propagates a new pulse without any tuples so long as the input
+   * pulse contains some added, removed or modified tuples.
+   * @param {object} params - The parameters for this operator.
+   * @constructor
+   */
+
+  function Sieve$1(params) {
+    Transform.call(this, null, params);
+    this.modified(true); // always treat as modified
+  }
+
+  inherits(Sieve$1, Transform, {
+    transform(_, pulse) {
+      this.value = pulse.source;
+      return pulse.changed() ? pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS) : pulse.StopPropagation;
+    }
+
+  });
+  /**
+   * Discretize dates to specific time units.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - The data field containing date/time values.
+   */
+
+  function TimeUnit(params) {
+    Transform.call(this, null, params);
+  }
+
+  const OUTPUT = ['unit0', 'unit1'];
+  TimeUnit.Definition = {
+    'type': 'TimeUnit',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'interval',
+      'type': 'boolean',
+      'default': true
+    }, {
+      'name': 'units',
+      'type': 'enum',
+      'values': TIME_UNITS,
+      'array': true
+    }, {
+      'name': 'step',
+      'type': 'number',
+      'default': 1
+    }, {
+      'name': 'maxbins',
+      'type': 'number',
+      'default': 40
+    }, {
+      'name': 'extent',
+      'type': 'date',
+      'array': true
+    }, {
+      'name': 'timezone',
+      'type': 'enum',
+      'default': 'local',
+      'values': ['local', 'utc']
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': 2,
+      'default': OUTPUT
+    }]
+  };
+  inherits(TimeUnit, Transform, {
+    transform(_, pulse) {
+      const field = _.field,
+            band = _.interval !== false,
+            utc = _.timezone === 'utc',
+            floor = this._floor(_, pulse),
+            offset = (utc ? utcInterval : timeInterval)(floor.unit).offset,
+            as = _.as || OUTPUT,
+            u0 = as[0],
+            u1 = as[1],
+            step = floor.step;
+
+      let min = floor.start || Infinity,
+          max = floor.stop || -Infinity,
+          flag = pulse.ADD;
+
+      if (_.modified() || pulse.modified(accessorFields(field))) {
+        pulse = pulse.reflow(true);
+        flag = pulse.SOURCE;
+        min = Infinity;
+        max = -Infinity;
+      }
+
+      pulse.visit(flag, t => {
+        const v = field(t);
+        let a, b;
+
+        if (v == null) {
+          t[u0] = null;
+          if (band) t[u1] = null;
+        } else {
+          t[u0] = a = b = floor(v);
+          if (band) t[u1] = b = offset(a, step);
+          if (a < min) min = a;
+          if (b > max) max = b;
+        }
+      });
+      floor.start = min;
+      floor.stop = max;
+      return pulse.modifies(band ? as : u0);
+    },
+
+    _floor(_, pulse) {
+      const utc = _.timezone === 'utc'; // get parameters
+
+      const {
+        units,
+        step
+      } = _.units ? {
+        units: _.units,
+        step: _.step || 1
+      } : bin$1({
+        extent: _.extent || extent(pulse.materialize(pulse.SOURCE).source, _.field),
+        maxbins: _.maxbins
+      }); // check / standardize time units
+
+      const tunits = timeUnits(units),
+            prev = this.value || {},
+            floor = (utc ? utcFloor : timeFloor)(tunits, step);
+      floor.unit = peek$1(tunits);
+      floor.units = tunits;
+      floor.step = step;
+      floor.start = prev.start;
+      floor.stop = prev.stop;
+      return this.value = floor;
+    }
+
+  });
+  /**
+   * An index that maps from unique, string-coerced, field values to tuples.
+   * Assumes that the field serves as a unique key with no duplicate values.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - The field accessor to index.
+   */
+
+  function TupleIndex(params) {
+    Transform.call(this, fastmap(), params);
+  }
+
+  inherits(TupleIndex, Transform, {
+    transform(_, pulse) {
+      const df = pulse.dataflow,
+            field = _.field,
+            index = this.value,
+            set = t => index.set(field(t), t);
+
+      let mod = true;
+
+      if (_.modified('field') || pulse.modified(field.fields)) {
+        index.clear();
+        pulse.visit(pulse.SOURCE, set);
+      } else if (pulse.changed()) {
+        pulse.visit(pulse.REM, t => index.delete(field(t)));
+        pulse.visit(pulse.ADD, set);
+      } else {
+        mod = false;
+      }
+
+      this.modified(mod);
+      if (index.empty > df.cleanThreshold) df.runAfter(index.clean);
+      return pulse.fork();
+    }
+
+  });
+  /**
+   * Extracts an array of values. Assumes the source data has already been
+   * reduced as needed (e.g., by an upstream Aggregate transform).
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - The domain field to extract.
+   * @param {function(*,*): number} [params.sort] - An optional
+   *   comparator function for sorting the values. The comparator will be
+   *   applied to backing tuples prior to value extraction.
+   */
+
+  function Values$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  inherits(Values$1, Transform, {
+    transform(_, pulse) {
+      const run = !this.value || _.modified('field') || _.modified('sort') || pulse.changed() || _.sort && pulse.modified(_.sort.fields);
+
+      if (run) {
+        this.value = (_.sort ? pulse.source.slice().sort(stableCompare(_.sort)) : pulse.source).map(_.field);
+      }
+    }
+
+  });
+
+  function WindowOp(op, field, param, as) {
+    const fn = WindowOps[op](field, param);
+    return {
+      init: fn.init || zero$2,
+      update: function (w, t) {
+        t[as] = fn.next(w);
+      }
+    };
+  }
+
+  const WindowOps = {
+    row_number: function () {
+      return {
+        next: w => w.index + 1
+      };
+    },
+    rank: function () {
+      let rank;
+      return {
+        init: () => rank = 1,
+        next: w => {
+          const i = w.index,
+                data = w.data;
+          return i && w.compare(data[i - 1], data[i]) ? rank = i + 1 : rank;
+        }
+      };
+    },
+    dense_rank: function () {
+      let drank;
+      return {
+        init: () => drank = 1,
+        next: w => {
+          const i = w.index,
+                d = w.data;
+          return i && w.compare(d[i - 1], d[i]) ? ++drank : drank;
+        }
+      };
+    },
+    percent_rank: function () {
+      const rank = WindowOps.rank(),
+            next = rank.next;
+      return {
+        init: rank.init,
+        next: w => (next(w) - 1) / (w.data.length - 1)
+      };
+    },
+    cume_dist: function () {
+      let cume;
+      return {
+        init: () => cume = 0,
+        next: w => {
+          const d = w.data,
+                c = w.compare;
+          let i = w.index;
+
+          if (cume < i) {
+            while (i + 1 < d.length && !c(d[i], d[i + 1])) ++i;
+
+            cume = i;
+          }
+
+          return (1 + cume) / d.length;
+        }
+      };
+    },
+    ntile: function (field, num) {
+      num = +num;
+      if (!(num > 0)) error('ntile num must be greater than zero.');
+      const cume = WindowOps.cume_dist(),
+            next = cume.next;
+      return {
+        init: cume.init,
+        next: w => Math.ceil(num * next(w))
+      };
+    },
+    lag: function (field, offset) {
+      offset = +offset || 1;
+      return {
+        next: w => {
+          const i = w.index - offset;
+          return i >= 0 ? field(w.data[i]) : null;
+        }
+      };
+    },
+    lead: function (field, offset) {
+      offset = +offset || 1;
+      return {
+        next: w => {
+          const i = w.index + offset,
+                d = w.data;
+          return i < d.length ? field(d[i]) : null;
+        }
+      };
+    },
+    first_value: function (field) {
+      return {
+        next: w => field(w.data[w.i0])
+      };
+    },
+    last_value: function (field) {
+      return {
+        next: w => field(w.data[w.i1 - 1])
+      };
+    },
+    nth_value: function (field, nth) {
+      nth = +nth;
+      if (!(nth > 0)) error('nth_value nth must be greater than zero.');
+      return {
+        next: w => {
+          const i = w.i0 + (nth - 1);
+          return i < w.i1 ? field(w.data[i]) : null;
+        }
+      };
+    },
+    prev_value: function (field) {
+      let prev;
+      return {
+        init: () => prev = null,
+        next: w => {
+          const v = field(w.data[w.index]);
+          return v != null ? prev = v : prev;
+        }
+      };
+    },
+    next_value: function (field) {
+      let v, i;
+      return {
+        init: () => (v = null, i = -1),
+        next: w => {
+          const d = w.data;
+          return w.index <= i ? v : (i = find$2(field, d, w.index)) < 0 ? (i = d.length, v = null) : v = field(d[i]);
+        }
+      };
+    }
+  };
+
+  function find$2(field, data, index) {
+    for (let n = data.length; index < n; ++index) {
+      const v = field(data[index]);
+      if (v != null) return index;
+    }
+
+    return -1;
+  }
+
+  const ValidWindowOps = Object.keys(WindowOps);
+
+  function WindowState(_) {
+    const ops = array$5(_.ops),
+          fields = array$5(_.fields),
+          params = array$5(_.params),
+          as = array$5(_.as),
+          outputs = this.outputs = [],
+          windows = this.windows = [],
+          inputs = {},
+          map = {},
+          counts = [],
+          measures = [];
+    let countOnly = true;
+
+    function visitInputs(f) {
+      array$5(accessorFields(f)).forEach(_ => inputs[_] = 1);
+    }
+
+    visitInputs(_.sort);
+    ops.forEach((op, i) => {
+      const field = fields[i],
+            mname = accessorName(field),
+            name = measureName(op, mname, as[i]);
+      visitInputs(field);
+      outputs.push(name); // Window operation
+
+      if (has$1(WindowOps, op)) {
+        windows.push(WindowOp(op, fields[i], params[i], name));
+      } // Aggregate operation
+      else {
+        if (field == null && op !== 'count') {
+          error('Null aggregate field specified.');
+        }
+
+        if (op === 'count') {
+          counts.push(name);
+          return;
+        }
+
+        countOnly = false;
+        let m = map[mname];
+
+        if (!m) {
+          m = map[mname] = [];
+          m.field = field;
+          measures.push(m);
+        }
+
+        m.push(createMeasure(op, name));
+      }
+    });
+
+    if (counts.length || measures.length) {
+      this.cell = cell(measures, counts, countOnly);
+    }
+
+    this.inputs = Object.keys(inputs);
+  }
+
+  const prototype = WindowState.prototype;
+
+  prototype.init = function () {
+    this.windows.forEach(_ => _.init());
+    if (this.cell) this.cell.init();
+  };
+
+  prototype.update = function (w, t) {
+    const cell = this.cell,
+          wind = this.windows,
+          data = w.data,
+          m = wind && wind.length;
+    let j;
+
+    if (cell) {
+      for (j = w.p0; j < w.i0; ++j) cell.rem(data[j]);
+
+      for (j = w.p1; j < w.i1; ++j) cell.add(data[j]);
+
+      cell.set(t);
+    }
+
+    for (j = 0; j < m; ++j) wind[j].update(w, t);
+  };
+
+  function cell(measures, counts, countOnly) {
+    measures = measures.map(m => compileMeasures(m, m.field));
+    const cell = {
+      num: 0,
+      agg: null,
+      store: false,
+      count: counts
+    };
+
+    if (!countOnly) {
+      var n = measures.length,
+          a = cell.agg = Array(n),
+          i = 0;
+
+      for (; i < n; ++i) a[i] = new measures[i](cell);
+    }
+
+    if (cell.store) {
+      var store = cell.data = new TupleStore();
+    }
+
+    cell.add = function (t) {
+      cell.num += 1;
+      if (countOnly) return;
+      if (store) store.add(t);
+
+      for (let i = 0; i < n; ++i) {
+        a[i].add(a[i].get(t), t);
+      }
+    };
+
+    cell.rem = function (t) {
+      cell.num -= 1;
+      if (countOnly) return;
+      if (store) store.rem(t);
+
+      for (let i = 0; i < n; ++i) {
+        a[i].rem(a[i].get(t), t);
+      }
+    };
+
+    cell.set = function (t) {
+      let i, n; // consolidate stored values
+
+      if (store) store.values(); // update tuple properties
+
+      for (i = 0, n = counts.length; i < n; ++i) t[counts[i]] = cell.num;
+
+      if (!countOnly) for (i = 0, n = a.length; i < n; ++i) a[i].set(t);
+    };
+
+    cell.init = function () {
+      cell.num = 0;
+      if (store) store.reset();
+
+      for (let i = 0; i < n; ++i) a[i].init();
+    };
+
+    return cell;
+  }
+  /**
+   * Perform window calculations and write results to the input stream.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(*,*): number} [params.sort] - A comparator function for sorting tuples within a window.
+   * @param {Array<function(object): *>} [params.groupby] - An array of accessors by which to partition tuples into separate windows.
+   * @param {Array<string>} params.ops - An array of strings indicating window operations to perform.
+   * @param {Array<function(object): *>} [params.fields] - An array of accessors
+   *   for data fields to use as inputs to window operations.
+   * @param {Array<*>} [params.params] - An array of parameter values for window operations.
+   * @param {Array<string>} [params.as] - An array of output field names for window operations.
+   * @param {Array<number>} [params.frame] - Window frame definition as two-element array.
+   * @param {boolean} [params.ignorePeers=false] - If true, base window frame boundaries on row
+   *   number alone, ignoring peers with identical sort values. If false (default),
+   *   the window boundaries will be adjusted to include peer values.
+   */
+
+
+  function Window(params) {
+    Transform.call(this, {}, params);
+    this._mlen = 0;
+    this._mods = [];
+  }
+
+  Window.Definition = {
+    'type': 'Window',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'sort',
+      'type': 'compare'
+    }, {
+      'name': 'groupby',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'ops',
+      'type': 'enum',
+      'array': true,
+      'values': ValidWindowOps.concat(ValidAggregateOps)
+    }, {
+      'name': 'params',
+      'type': 'number',
+      'null': true,
+      'array': true
+    }, {
+      'name': 'fields',
+      'type': 'field',
+      'null': true,
+      'array': true
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'null': true,
+      'array': true
+    }, {
+      'name': 'frame',
+      'type': 'number',
+      'null': true,
+      'array': true,
+      'length': 2,
+      'default': [null, 0]
+    }, {
+      'name': 'ignorePeers',
+      'type': 'boolean',
+      'default': false
+    }]
+  };
+  inherits(Window, Transform, {
+    transform(_, pulse) {
+      this.stamp = pulse.stamp;
+
+      const mod = _.modified(),
+            cmp = stableCompare(_.sort),
+            key = groupkey(_.groupby),
+            group = t => this.group(key(t)); // initialize window state
+
+
+      let state = this.state;
+
+      if (!state || mod) {
+        state = this.state = new WindowState(_);
+      } // partition input tuples
+
+
+      if (mod || pulse.modified(state.inputs)) {
+        this.value = {};
+        pulse.visit(pulse.SOURCE, t => group(t).add(t));
+      } else {
+        pulse.visit(pulse.REM, t => group(t).remove(t));
+        pulse.visit(pulse.ADD, t => group(t).add(t));
+      } // perform window calculations for each modified partition
+
+
+      for (let i = 0, n = this._mlen; i < n; ++i) {
+        processPartition(this._mods[i], state, cmp, _);
+      }
+
+      this._mlen = 0;
+      this._mods = []; // TODO don't reflow everything?
+
+      return pulse.reflow(mod).modifies(state.outputs);
+    },
+
+    group(key) {
+      let group = this.value[key];
+
+      if (!group) {
+        group = this.value[key] = SortedList(tupleid);
+        group.stamp = -1;
+      }
+
+      if (group.stamp < this.stamp) {
+        group.stamp = this.stamp;
+        this._mods[this._mlen++] = group;
+      }
+
+      return group;
+    }
+
+  });
+
+  function processPartition(list, state, cmp, _) {
+    const sort = _.sort,
+          range = sort && !_.ignorePeers,
+          frame = _.frame || [null, 0],
+          data = list.data(cmp),
+          // use cmp for stable sort
+    n = data.length,
+          b = range ? bisector$1(sort) : null,
+          w = {
+      i0: 0,
+      i1: 0,
+      p0: 0,
+      p1: 0,
+      index: 0,
+      data: data,
+      compare: sort || constant$4(-1)
+    };
+    state.init();
+
+    for (let i = 0; i < n; ++i) {
+      setWindow(w, frame, i, n);
+      if (range) adjustRange(w, b);
+      state.update(w, data[i]);
+    }
+  }
+
+  function setWindow(w, f, i, n) {
+    w.p0 = w.i0;
+    w.p1 = w.i1;
+    w.i0 = f[0] == null ? 0 : Math.max(0, i - Math.abs(f[0]));
+    w.i1 = f[1] == null ? n : Math.min(n, i + Math.abs(f[1]) + 1);
+    w.index = i;
+  } // if frame type is 'range', adjust window for peer values
+
+
+  function adjustRange(w, bisect) {
+    const r0 = w.i0,
+          r1 = w.i1 - 1,
+          c = w.compare,
+          d = w.data,
+          n = d.length - 1;
+    if (r0 > 0 && !c(d[r0], d[r0 - 1])) w.i0 = bisect.left(d, d[r0]);
+    if (r1 < n && !c(d[r1], d[r1 + 1])) w.i1 = bisect.right(d, d[r1]);
+  }
+
+  var tx = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    aggregate: Aggregate$1,
+    bin: Bin,
+    collect: Collect$1,
+    compare: Compare$1,
+    countpattern: CountPattern,
+    cross: Cross,
+    density: Density,
+    dotbin: DotBin,
+    expression: Expression$1,
+    extent: Extent,
+    facet: Facet$1,
+    field: Field$1,
+    filter: Filter,
+    flatten: Flatten,
+    fold: Fold,
+    formula: Formula,
+    generate: Generate,
+    impute: Impute,
+    joinaggregate: JoinAggregate,
+    kde: KDE,
+    key: Key$1,
+    load: Load$1,
+    lookup: Lookup,
+    multiextent: MultiExtent$1,
+    multivalues: MultiValues$1,
+    params: Params$2,
+    pivot: Pivot,
+    prefacet: PreFacet$1,
+    project: Project,
+    proxy: Proxy$1,
+    quantile: Quantile$1,
+    relay: Relay$1,
+    sample: Sample,
+    sequence: Sequence,
+    sieve: Sieve$1,
+    subflow: Subflow,
+    timeunit: TimeUnit,
+    tupleindex: TupleIndex,
+    values: Values$1,
+    window: Window
+  });
+
+  const pi$3 = Math.PI,
+        tau$3 = 2 * pi$3,
+        epsilon$4 = 1e-6,
+        tauEpsilon = tau$3 - epsilon$4;
+
+  function Path$1() {
+    this._x0 = this._y0 = // start of current subpath
+    this._x1 = this._y1 = null; // end of current subpath
+
+    this._ = "";
+  }
+
+  function path$3() {
+    return new Path$1();
+  }
+
+  Path$1.prototype = path$3.prototype = {
+    constructor: Path$1,
+    moveTo: function (x, y) {
+      this._ += "M" + (this._x0 = this._x1 = +x) + "," + (this._y0 = this._y1 = +y);
+    },
+    closePath: function () {
+      if (this._x1 !== null) {
+        this._x1 = this._x0, this._y1 = this._y0;
+        this._ += "Z";
+      }
+    },
+    lineTo: function (x, y) {
+      this._ += "L" + (this._x1 = +x) + "," + (this._y1 = +y);
+    },
+    quadraticCurveTo: function (x1, y1, x, y) {
+      this._ += "Q" + +x1 + "," + +y1 + "," + (this._x1 = +x) + "," + (this._y1 = +y);
+    },
+    bezierCurveTo: function (x1, y1, x2, y2, x, y) {
+      this._ += "C" + +x1 + "," + +y1 + "," + +x2 + "," + +y2 + "," + (this._x1 = +x) + "," + (this._y1 = +y);
+    },
+    arcTo: function (x1, y1, x2, y2, r) {
+      x1 = +x1, y1 = +y1, x2 = +x2, y2 = +y2, r = +r;
+      var x0 = this._x1,
+          y0 = this._y1,
+          x21 = x2 - x1,
+          y21 = y2 - y1,
+          x01 = x0 - x1,
+          y01 = y0 - y1,
+          l01_2 = x01 * x01 + y01 * y01; // Is the radius negative? Error.
+
+      if (r < 0) throw new Error("negative radius: " + r); // Is this path empty? Move to (x1,y1).
+
+      if (this._x1 === null) {
+        this._ += "M" + (this._x1 = x1) + "," + (this._y1 = y1);
+      } // Or, is (x1,y1) coincident with (x0,y0)? Do nothing.
+      else if (!(l01_2 > epsilon$4)) ; // Or, are (x0,y0), (x1,y1) and (x2,y2) collinear?
+      // Equivalently, is (x1,y1) coincident with (x2,y2)?
+      // Or, is the radius zero? Line to (x1,y1).
+      else if (!(Math.abs(y01 * x21 - y21 * x01) > epsilon$4) || !r) {
+        this._ += "L" + (this._x1 = x1) + "," + (this._y1 = y1);
+      } // Otherwise, draw an arc!
+      else {
+        var x20 = x2 - x0,
+            y20 = y2 - y0,
+            l21_2 = x21 * x21 + y21 * y21,
+            l20_2 = x20 * x20 + y20 * y20,
+            l21 = Math.sqrt(l21_2),
+            l01 = Math.sqrt(l01_2),
+            l = r * Math.tan((pi$3 - Math.acos((l21_2 + l01_2 - l20_2) / (2 * l21 * l01))) / 2),
+            t01 = l / l01,
+            t21 = l / l21; // If the start tangent is not coincident with (x0,y0), line to.
+
+        if (Math.abs(t01 - 1) > epsilon$4) {
+          this._ += "L" + (x1 + t01 * x01) + "," + (y1 + t01 * y01);
+        }
+
+        this._ += "A" + r + "," + r + ",0,0," + +(y01 * x20 > x01 * y20) + "," + (this._x1 = x1 + t21 * x21) + "," + (this._y1 = y1 + t21 * y21);
+      }
+    },
+    arc: function (x, y, r, a0, a1, ccw) {
+      x = +x, y = +y, r = +r, ccw = !!ccw;
+      var dx = r * Math.cos(a0),
+          dy = r * Math.sin(a0),
+          x0 = x + dx,
+          y0 = y + dy,
+          cw = 1 ^ ccw,
+          da = ccw ? a0 - a1 : a1 - a0; // Is the radius negative? Error.
+
+      if (r < 0) throw new Error("negative radius: " + r); // Is this path empty? Move to (x0,y0).
+
+      if (this._x1 === null) {
+        this._ += "M" + x0 + "," + y0;
+      } // Or, is (x0,y0) not coincident with the previous point? Line to (x0,y0).
+      else if (Math.abs(this._x1 - x0) > epsilon$4 || Math.abs(this._y1 - y0) > epsilon$4) {
+        this._ += "L" + x0 + "," + y0;
+      } // Is this arc empty? We’re done.
+
+
+      if (!r) return; // Does the angle go the wrong way? Flip the direction.
+
+      if (da < 0) da = da % tau$3 + tau$3; // Is this a complete circle? Draw two arcs to complete the circle.
+
+      if (da > tauEpsilon) {
+        this._ += "A" + r + "," + r + ",0,1," + cw + "," + (x - dx) + "," + (y - dy) + "A" + r + "," + r + ",0,1," + cw + "," + (this._x1 = x0) + "," + (this._y1 = y0);
+      } // Is this arc non-empty? Draw an arc!
+      else if (da > epsilon$4) {
+        this._ += "A" + r + "," + r + ",0," + +(da >= pi$3) + "," + cw + "," + (this._x1 = x + r * Math.cos(a1)) + "," + (this._y1 = y + r * Math.sin(a1));
+      }
+    },
+    rect: function (x, y, w, h) {
+      this._ += "M" + (this._x0 = this._x1 = +x) + "," + (this._y0 = this._y1 = +y) + "h" + +w + "v" + +h + "h" + -w + "Z";
+    },
+    toString: function () {
+      return this._;
+    }
+  };
+
+  function constant$3 (x) {
+    return function constant() {
+      return x;
+    };
+  }
+
+  var abs$2 = Math.abs;
+  var atan2$1 = Math.atan2;
+  var cos$2 = Math.cos;
+  var max$1 = Math.max;
+  var min$1 = Math.min;
+  var sin$2 = Math.sin;
+  var sqrt$3 = Math.sqrt;
+  var epsilon$3 = 1e-12;
+  var pi$2 = Math.PI;
+  var halfPi$2 = pi$2 / 2;
+  var tau$2 = 2 * pi$2;
+  function acos$1(x) {
+    return x > 1 ? 0 : x < -1 ? pi$2 : Math.acos(x);
+  }
+  function asin$2(x) {
+    return x >= 1 ? halfPi$2 : x <= -1 ? -halfPi$2 : Math.asin(x);
+  }
+
+  function arcInnerRadius(d) {
+    return d.innerRadius;
+  }
+
+  function arcOuterRadius(d) {
+    return d.outerRadius;
+  }
+
+  function arcStartAngle(d) {
+    return d.startAngle;
+  }
+
+  function arcEndAngle(d) {
+    return d.endAngle;
+  }
+
+  function arcPadAngle(d) {
+    return d && d.padAngle; // Note: optional!
+  }
+
+  function intersect$3(x0, y0, x1, y1, x2, y2, x3, y3) {
+    var x10 = x1 - x0,
+        y10 = y1 - y0,
+        x32 = x3 - x2,
+        y32 = y3 - y2,
+        t = y32 * x10 - x32 * y10;
+    if (t * t < epsilon$3) return;
+    t = (x32 * (y0 - y2) - y32 * (x0 - x2)) / t;
+    return [x0 + t * x10, y0 + t * y10];
+  } // Compute perpendicular offset line of length rc.
+  // http://mathworld.wolfram.com/Circle-LineIntersection.html
+
+
+  function cornerTangents(x0, y0, x1, y1, r1, rc, cw) {
+    var x01 = x0 - x1,
+        y01 = y0 - y1,
+        lo = (cw ? rc : -rc) / sqrt$3(x01 * x01 + y01 * y01),
+        ox = lo * y01,
+        oy = -lo * x01,
+        x11 = x0 + ox,
+        y11 = y0 + oy,
+        x10 = x1 + ox,
+        y10 = y1 + oy,
+        x00 = (x11 + x10) / 2,
+        y00 = (y11 + y10) / 2,
+        dx = x10 - x11,
+        dy = y10 - y11,
+        d2 = dx * dx + dy * dy,
+        r = r1 - rc,
+        D = x11 * y10 - x10 * y11,
+        d = (dy < 0 ? -1 : 1) * sqrt$3(max$1(0, r * r * d2 - D * D)),
+        cx0 = (D * dy - dx * d) / d2,
+        cy0 = (-D * dx - dy * d) / d2,
+        cx1 = (D * dy + dx * d) / d2,
+        cy1 = (-D * dx + dy * d) / d2,
+        dx0 = cx0 - x00,
+        dy0 = cy0 - y00,
+        dx1 = cx1 - x00,
+        dy1 = cy1 - y00; // Pick the closer of the two intersection points.
+    // TODO Is there a faster way to determine which intersection to use?
+
+    if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1;
+    return {
+      cx: cx0,
+      cy: cy0,
+      x01: -ox,
+      y01: -oy,
+      x11: cx0 * (r1 / r - 1),
+      y11: cy0 * (r1 / r - 1)
+    };
+  }
+
+  function arc$2$1 () {
+    var innerRadius = arcInnerRadius,
+        outerRadius = arcOuterRadius,
+        cornerRadius = constant$3(0),
+        padRadius = null,
+        startAngle = arcStartAngle,
+        endAngle = arcEndAngle,
+        padAngle = arcPadAngle,
+        context = null;
+
+    function arc() {
+      var buffer,
+          r,
+          r0 = +innerRadius.apply(this, arguments),
+          r1 = +outerRadius.apply(this, arguments),
+          a0 = startAngle.apply(this, arguments) - halfPi$2,
+          a1 = endAngle.apply(this, arguments) - halfPi$2,
+          da = abs$2(a1 - a0),
+          cw = a1 > a0;
+      if (!context) context = buffer = path$3(); // Ensure that the outer radius is always larger than the inner radius.
+
+      if (r1 < r0) r = r1, r1 = r0, r0 = r; // Is it a point?
+
+      if (!(r1 > epsilon$3)) context.moveTo(0, 0); // Or is it a circle or annulus?
+      else if (da > tau$2 - epsilon$3) {
+        context.moveTo(r1 * cos$2(a0), r1 * sin$2(a0));
+        context.arc(0, 0, r1, a0, a1, !cw);
+
+        if (r0 > epsilon$3) {
+          context.moveTo(r0 * cos$2(a1), r0 * sin$2(a1));
+          context.arc(0, 0, r0, a1, a0, cw);
+        }
+      } // Or is it a circular or annular sector?
+      else {
+        var a01 = a0,
+            a11 = a1,
+            a00 = a0,
+            a10 = a1,
+            da0 = da,
+            da1 = da,
+            ap = padAngle.apply(this, arguments) / 2,
+            rp = ap > epsilon$3 && (padRadius ? +padRadius.apply(this, arguments) : sqrt$3(r0 * r0 + r1 * r1)),
+            rc = min$1(abs$2(r1 - r0) / 2, +cornerRadius.apply(this, arguments)),
+            rc0 = rc,
+            rc1 = rc,
+            t0,
+            t1; // Apply padding? Note that since r1 ≥ r0, da1 ≥ da0.
+
+        if (rp > epsilon$3) {
+          var p0 = asin$2(rp / r0 * sin$2(ap)),
+              p1 = asin$2(rp / r1 * sin$2(ap));
+          if ((da0 -= p0 * 2) > epsilon$3) p0 *= cw ? 1 : -1, a00 += p0, a10 -= p0;else da0 = 0, a00 = a10 = (a0 + a1) / 2;
+          if ((da1 -= p1 * 2) > epsilon$3) p1 *= cw ? 1 : -1, a01 += p1, a11 -= p1;else da1 = 0, a01 = a11 = (a0 + a1) / 2;
+        }
+
+        var x01 = r1 * cos$2(a01),
+            y01 = r1 * sin$2(a01),
+            x10 = r0 * cos$2(a10),
+            y10 = r0 * sin$2(a10); // Apply rounded corners?
+
+        if (rc > epsilon$3) {
+          var x11 = r1 * cos$2(a11),
+              y11 = r1 * sin$2(a11),
+              x00 = r0 * cos$2(a00),
+              y00 = r0 * sin$2(a00),
+              oc; // Restrict the corner radius according to the sector angle.
+
+          if (da < pi$2 && (oc = intersect$3(x01, y01, x00, y00, x11, y11, x10, y10))) {
+            var ax = x01 - oc[0],
+                ay = y01 - oc[1],
+                bx = x11 - oc[0],
+                by = y11 - oc[1],
+                kc = 1 / sin$2(acos$1((ax * bx + ay * by) / (sqrt$3(ax * ax + ay * ay) * sqrt$3(bx * bx + by * by))) / 2),
+                lc = sqrt$3(oc[0] * oc[0] + oc[1] * oc[1]);
+            rc0 = min$1(rc, (r0 - lc) / (kc - 1));
+            rc1 = min$1(rc, (r1 - lc) / (kc + 1));
+          }
+        } // Is the sector collapsed to a line?
+
+
+        if (!(da1 > epsilon$3)) context.moveTo(x01, y01); // Does the sector’s outer ring have rounded corners?
+        else if (rc1 > epsilon$3) {
+          t0 = cornerTangents(x00, y00, x01, y01, r1, rc1, cw);
+          t1 = cornerTangents(x11, y11, x10, y10, r1, rc1, cw);
+          context.moveTo(t0.cx + t0.x01, t0.cy + t0.y01); // Have the corners merged?
+
+          if (rc1 < rc) context.arc(t0.cx, t0.cy, rc1, atan2$1(t0.y01, t0.x01), atan2$1(t1.y01, t1.x01), !cw); // Otherwise, draw the two corners and the ring.
+          else {
+            context.arc(t0.cx, t0.cy, rc1, atan2$1(t0.y01, t0.x01), atan2$1(t0.y11, t0.x11), !cw);
+            context.arc(0, 0, r1, atan2$1(t0.cy + t0.y11, t0.cx + t0.x11), atan2$1(t1.cy + t1.y11, t1.cx + t1.x11), !cw);
+            context.arc(t1.cx, t1.cy, rc1, atan2$1(t1.y11, t1.x11), atan2$1(t1.y01, t1.x01), !cw);
+          }
+        } // Or is the outer ring just a circular arc?
+        else context.moveTo(x01, y01), context.arc(0, 0, r1, a01, a11, !cw); // Is there no inner ring, and it’s a circular sector?
+        // Or perhaps it’s an annular sector collapsed due to padding?
+
+        if (!(r0 > epsilon$3) || !(da0 > epsilon$3)) context.lineTo(x10, y10); // Does the sector’s inner ring (or point) have rounded corners?
+        else if (rc0 > epsilon$3) {
+          t0 = cornerTangents(x10, y10, x11, y11, r0, -rc0, cw);
+          t1 = cornerTangents(x01, y01, x00, y00, r0, -rc0, cw);
+          context.lineTo(t0.cx + t0.x01, t0.cy + t0.y01); // Have the corners merged?
+
+          if (rc0 < rc) context.arc(t0.cx, t0.cy, rc0, atan2$1(t0.y01, t0.x01), atan2$1(t1.y01, t1.x01), !cw); // Otherwise, draw the two corners and the ring.
+          else {
+            context.arc(t0.cx, t0.cy, rc0, atan2$1(t0.y01, t0.x01), atan2$1(t0.y11, t0.x11), !cw);
+            context.arc(0, 0, r0, atan2$1(t0.cy + t0.y11, t0.cx + t0.x11), atan2$1(t1.cy + t1.y11, t1.cx + t1.x11), cw);
+            context.arc(t1.cx, t1.cy, rc0, atan2$1(t1.y11, t1.x11), atan2$1(t1.y01, t1.x01), !cw);
+          }
+        } // Or is the inner ring just a circular arc?
+        else context.arc(0, 0, r0, a10, a00, cw);
+      }
+      context.closePath();
+      if (buffer) return context = null, buffer + "" || null;
+    }
+
+    arc.centroid = function () {
+      var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2,
+          a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - pi$2 / 2;
+      return [cos$2(a) * r, sin$2(a) * r];
+    };
+
+    arc.innerRadius = function (_) {
+      return arguments.length ? (innerRadius = typeof _ === "function" ? _ : constant$3(+_), arc) : innerRadius;
+    };
+
+    arc.outerRadius = function (_) {
+      return arguments.length ? (outerRadius = typeof _ === "function" ? _ : constant$3(+_), arc) : outerRadius;
+    };
+
+    arc.cornerRadius = function (_) {
+      return arguments.length ? (cornerRadius = typeof _ === "function" ? _ : constant$3(+_), arc) : cornerRadius;
+    };
+
+    arc.padRadius = function (_) {
+      return arguments.length ? (padRadius = _ == null ? null : typeof _ === "function" ? _ : constant$3(+_), arc) : padRadius;
+    };
+
+    arc.startAngle = function (_) {
+      return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$3(+_), arc) : startAngle;
+    };
+
+    arc.endAngle = function (_) {
+      return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$3(+_), arc) : endAngle;
+    };
+
+    arc.padAngle = function (_) {
+      return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$3(+_), arc) : padAngle;
+    };
+
+    arc.context = function (_) {
+      return arguments.length ? (context = _ == null ? null : _, arc) : context;
+    };
+
+    return arc;
+  }
+
+  function array$4 (x) {
+    return typeof x === "object" && "length" in x ? x // Array, TypedArray, NodeList, array-like
+    : Array.from(x); // Map, Set, iterable, string, or anything else
+  }
+
+  function Linear$1(context) {
+    this._context = context;
+  }
+
+  Linear$1.prototype = {
+    areaStart: function () {
+      this._line = 0;
+    },
+    areaEnd: function () {
+      this._line = NaN;
+    },
+    lineStart: function () {
+      this._point = 0;
+    },
+    lineEnd: function () {
+      if (this._line || this._line !== 0 && this._point === 1) this._context.closePath();
+      this._line = 1 - this._line;
+    },
+    point: function (x, y) {
+      x = +x, y = +y;
+
+      switch (this._point) {
+        case 0:
+          this._point = 1;
+          this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y);
+          break;
+
+        case 1:
+          this._point = 2;
+        // proceed
+
+        default:
+          this._context.lineTo(x, y);
+
+          break;
+      }
+    }
+  };
+  function curveLinear (context) {
+    return new Linear$1(context);
+  }
+
+  function x$3(p) {
+    return p[0];
+  }
+  function y$3(p) {
+    return p[1];
+  }
+
+  function line$2$1 (x, y) {
+    var defined = constant$3(true),
+        context = null,
+        curve = curveLinear,
+        output = null;
+    x = typeof x === "function" ? x : x === undefined ? x$3 : constant$3(x);
+    y = typeof y === "function" ? y : y === undefined ? y$3 : constant$3(y);
+
+    function line(data) {
+      var i,
+          n = (data = array$4(data)).length,
+          d,
+          defined0 = false,
+          buffer;
+      if (context == null) output = curve(buffer = path$3());
+
+      for (i = 0; i <= n; ++i) {
+        if (!(i < n && defined(d = data[i], i, data)) === defined0) {
+          if (defined0 = !defined0) output.lineStart();else output.lineEnd();
+        }
+
+        if (defined0) output.point(+x(d, i, data), +y(d, i, data));
+      }
+
+      if (buffer) return output = null, buffer + "" || null;
+    }
+
+    line.x = function (_) {
+      return arguments.length ? (x = typeof _ === "function" ? _ : constant$3(+_), line) : x;
+    };
+
+    line.y = function (_) {
+      return arguments.length ? (y = typeof _ === "function" ? _ : constant$3(+_), line) : y;
+    };
+
+    line.defined = function (_) {
+      return arguments.length ? (defined = typeof _ === "function" ? _ : constant$3(!!_), line) : defined;
+    };
+
+    line.curve = function (_) {
+      return arguments.length ? (curve = _, context != null && (output = curve(context)), line) : curve;
+    };
+
+    line.context = function (_) {
+      return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), line) : context;
+    };
+
+    return line;
+  }
+
+  function area$2$1 (x0, y0, y1) {
+    var x1 = null,
+        defined = constant$3(true),
+        context = null,
+        curve = curveLinear,
+        output = null;
+    x0 = typeof x0 === "function" ? x0 : x0 === undefined ? x$3 : constant$3(+x0);
+    y0 = typeof y0 === "function" ? y0 : y0 === undefined ? constant$3(0) : constant$3(+y0);
+    y1 = typeof y1 === "function" ? y1 : y1 === undefined ? y$3 : constant$3(+y1);
+
+    function area(data) {
+      var i,
+          j,
+          k,
+          n = (data = array$4(data)).length,
+          d,
+          defined0 = false,
+          buffer,
+          x0z = new Array(n),
+          y0z = new Array(n);
+      if (context == null) output = curve(buffer = path$3());
+
+      for (i = 0; i <= n; ++i) {
+        if (!(i < n && defined(d = data[i], i, data)) === defined0) {
+          if (defined0 = !defined0) {
+            j = i;
+            output.areaStart();
+            output.lineStart();
+          } else {
+            output.lineEnd();
+            output.lineStart();
+
+            for (k = i - 1; k >= j; --k) {
+              output.point(x0z[k], y0z[k]);
+            }
+
+            output.lineEnd();
+            output.areaEnd();
+          }
+        }
+
+        if (defined0) {
+          x0z[i] = +x0(d, i, data), y0z[i] = +y0(d, i, data);
+          output.point(x1 ? +x1(d, i, data) : x0z[i], y1 ? +y1(d, i, data) : y0z[i]);
+        }
+      }
+
+      if (buffer) return output = null, buffer + "" || null;
+    }
+
+    function arealine() {
+      return line$2$1().defined(defined).curve(curve).context(context);
+    }
+
+    area.x = function (_) {
+      return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$3(+_), x1 = null, area) : x0;
+    };
+
+    area.x0 = function (_) {
+      return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$3(+_), area) : x0;
+    };
+
+    area.x1 = function (_) {
+      return arguments.length ? (x1 = _ == null ? null : typeof _ === "function" ? _ : constant$3(+_), area) : x1;
+    };
+
+    area.y = function (_) {
+      return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$3(+_), y1 = null, area) : y0;
+    };
+
+    area.y0 = function (_) {
+      return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$3(+_), area) : y0;
+    };
+
+    area.y1 = function (_) {
+      return arguments.length ? (y1 = _ == null ? null : typeof _ === "function" ? _ : constant$3(+_), area) : y1;
+    };
+
+    area.lineX0 = area.lineY0 = function () {
+      return arealine().x(x0).y(y0);
+    };
+
+    area.lineY1 = function () {
+      return arealine().x(x0).y(y1);
+    };
+
+    area.lineX1 = function () {
+      return arealine().x(x1).y(y0);
+    };
+
+    area.defined = function (_) {
+      return arguments.length ? (defined = typeof _ === "function" ? _ : constant$3(!!_), area) : defined;
+    };
+
+    area.curve = function (_) {
+      return arguments.length ? (curve = _, context != null && (output = curve(context)), area) : curve;
+    };
+
+    area.context = function (_) {
+      return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), area) : context;
+    };
+
+    return area;
+  }
+
+  var circle$1 = {
+    draw: function (context, size) {
+      var r = Math.sqrt(size / pi$2);
+      context.moveTo(r, 0);
+      context.arc(0, 0, r, 0, tau$2);
+    }
+  };
+
+  function symbol$2 (type, size) {
+    var context = null;
+    type = typeof type === "function" ? type : constant$3(type || circle$1);
+    size = typeof size === "function" ? size : constant$3(size === undefined ? 64 : +size);
+
+    function symbol() {
+      var buffer;
+      if (!context) context = buffer = path$3();
+      type.apply(this, arguments).draw(context, +size.apply(this, arguments));
+      if (buffer) return context = null, buffer + "" || null;
+    }
+
+    symbol.type = function (_) {
+      return arguments.length ? (type = typeof _ === "function" ? _ : constant$3(_), symbol) : type;
+    };
+
+    symbol.size = function (_) {
+      return arguments.length ? (size = typeof _ === "function" ? _ : constant$3(+_), symbol) : size;
+    };
+
+    symbol.context = function (_) {
+      return arguments.length ? (context = _ == null ? null : _, symbol) : context;
+    };
+
+    return symbol;
+  }
+
+  function noop$3 () {}
+
+  function point$5(that, x, y) {
+    that._context.bezierCurveTo((2 * that._x0 + that._x1) / 3, (2 * that._y0 + that._y1) / 3, (that._x0 + 2 * that._x1) / 3, (that._y0 + 2 * that._y1) / 3, (that._x0 + 4 * that._x1 + x) / 6, (that._y0 + 4 * that._y1 + y) / 6);
+  }
+  function Basis(context) {
+    this._context = context;
+  }
+  Basis.prototype = {
+    areaStart: function () {
+      this._line = 0;
+    },
+    areaEnd: function () {
+      this._line = NaN;
+    },
+    lineStart: function () {
+      this._x0 = this._x1 = this._y0 = this._y1 = NaN;
+      this._point = 0;
+    },
+    lineEnd: function () {
+      switch (this._point) {
+        case 3:
+          point$5(this, this._x1, this._y1);
+        // proceed
+
+        case 2:
+          this._context.lineTo(this._x1, this._y1);
+
+          break;
+      }
+
+      if (this._line || this._line !== 0 && this._point === 1) this._context.closePath();
+      this._line = 1 - this._line;
+    },
+    point: function (x, y) {
+      x = +x, y = +y;
+
+      switch (this._point) {
+        case 0:
+          this._point = 1;
+          this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y);
+          break;
+
+        case 1:
+          this._point = 2;
+          break;
+
+        case 2:
+          this._point = 3;
+
+          this._context.lineTo((5 * this._x0 + this._x1) / 6, (5 * this._y0 + this._y1) / 6);
+
+        // proceed
+
+        default:
+          point$5(this, x, y);
+          break;
+      }
+
+      this._x0 = this._x1, this._x1 = x;
+      this._y0 = this._y1, this._y1 = y;
+    }
+  };
+  function curveBasis (context) {
+    return new Basis(context);
+  }
+
+  function BasisClosed(context) {
+    this._context = context;
+  }
+
+  BasisClosed.prototype = {
+    areaStart: noop$3,
+    areaEnd: noop$3,
+    lineStart: function () {
+      this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = NaN;
+      this._point = 0;
+    },
+    lineEnd: function () {
+      switch (this._point) {
+        case 1:
+          {
+            this._context.moveTo(this._x2, this._y2);
+
+            this._context.closePath();
+
+            break;
+          }
+
+        case 2:
+          {
+            this._context.moveTo((this._x2 + 2 * this._x3) / 3, (this._y2 + 2 * this._y3) / 3);
+
+            this._context.lineTo((this._x3 + 2 * this._x2) / 3, (this._y3 + 2 * this._y2) / 3);
+
+            this._context.closePath();
+
+            break;
+          }
+
+        case 3:
+          {
+            this.point(this._x2, this._y2);
+            this.point(this._x3, this._y3);
+            this.point(this._x4, this._y4);
+            break;
+          }
+      }
+    },
+    point: function (x, y) {
+      x = +x, y = +y;
+
+      switch (this._point) {
+        case 0:
+          this._point = 1;
+          this._x2 = x, this._y2 = y;
+          break;
+
+        case 1:
+          this._point = 2;
+          this._x3 = x, this._y3 = y;
+          break;
+
+        case 2:
+          this._point = 3;
+          this._x4 = x, this._y4 = y;
+
+          this._context.moveTo((this._x0 + 4 * this._x1 + x) / 6, (this._y0 + 4 * this._y1 + y) / 6);
+
+          break;
+
+        default:
+          point$5(this, x, y);
+          break;
+      }
+
+      this._x0 = this._x1, this._x1 = x;
+      this._y0 = this._y1, this._y1 = y;
+    }
+  };
+  function curveBasisClosed (context) {
+    return new BasisClosed(context);
+  }
+
+  function BasisOpen(context) {
+    this._context = context;
+  }
+
+  BasisOpen.prototype = {
+    areaStart: function () {
+      this._line = 0;
+    },
+    areaEnd: function () {
+      this._line = NaN;
+    },
+    lineStart: function () {
+      this._x0 = this._x1 = this._y0 = this._y1 = NaN;
+      this._point = 0;
+    },
+    lineEnd: function () {
+      if (this._line || this._line !== 0 && this._point === 3) this._context.closePath();
+      this._line = 1 - this._line;
+    },
+    point: function (x, y) {
+      x = +x, y = +y;
+
+      switch (this._point) {
+        case 0:
+          this._point = 1;
+          break;
+
+        case 1:
+          this._point = 2;
+          break;
+
+        case 2:
+          this._point = 3;
+          var x0 = (this._x0 + 4 * this._x1 + x) / 6,
+              y0 = (this._y0 + 4 * this._y1 + y) / 6;
+          this._line ? this._context.lineTo(x0, y0) : this._context.moveTo(x0, y0);
+          break;
+
+        case 3:
+          this._point = 4;
+        // proceed
+
+        default:
+          point$5(this, x, y);
+          break;
+      }
+
+      this._x0 = this._x1, this._x1 = x;
+      this._y0 = this._y1, this._y1 = y;
+    }
+  };
+  function curveBasisOpen (context) {
+    return new BasisOpen(context);
+  }
+
+  function Bundle(context, beta) {
+    this._basis = new Basis(context);
+    this._beta = beta;
+  }
+
+  Bundle.prototype = {
+    lineStart: function () {
+      this._x = [];
+      this._y = [];
+
+      this._basis.lineStart();
+    },
+    lineEnd: function () {
+      var x = this._x,
+          y = this._y,
+          j = x.length - 1;
+
+      if (j > 0) {
+        var x0 = x[0],
+            y0 = y[0],
+            dx = x[j] - x0,
+            dy = y[j] - y0,
+            i = -1,
+            t;
+
+        while (++i <= j) {
+          t = i / j;
+
+          this._basis.point(this._beta * x[i] + (1 - this._beta) * (x0 + t * dx), this._beta * y[i] + (1 - this._beta) * (y0 + t * dy));
+        }
+      }
+
+      this._x = this._y = null;
+
+      this._basis.lineEnd();
+    },
+    point: function (x, y) {
+      this._x.push(+x);
+
+      this._y.push(+y);
+    }
+  };
+  var curveBundle = (function custom(beta) {
+    function bundle(context) {
+      return beta === 1 ? new Basis(context) : new Bundle(context, beta);
+    }
+
+    bundle.beta = function (beta) {
+      return custom(+beta);
+    };
+
+    return bundle;
+  })(0.85);
+
+  function point$4(that, x, y) {
+    that._context.bezierCurveTo(that._x1 + that._k * (that._x2 - that._x0), that._y1 + that._k * (that._y2 - that._y0), that._x2 + that._k * (that._x1 - x), that._y2 + that._k * (that._y1 - y), that._x2, that._y2);
+  }
+  function Cardinal(context, tension) {
+    this._context = context;
+    this._k = (1 - tension) / 6;
+  }
+  Cardinal.prototype = {
+    areaStart: function () {
+      this._line = 0;
+    },
+    areaEnd: function () {
+      this._line = NaN;
+    },
+    lineStart: function () {
+      this._x0 = this._x1 = this._x2 = this._y0 = this._y1 = this._y2 = NaN;
+      this._point = 0;
+    },
+    lineEnd: function () {
+      switch (this._point) {
+        case 2:
+          this._context.lineTo(this._x2, this._y2);
+
+          break;
+
+        case 3:
+          point$4(this, this._x1, this._y1);
+          break;
+      }
+
+      if (this._line || this._line !== 0 && this._point === 1) this._context.closePath();
+      this._line = 1 - this._line;
+    },
+    point: function (x, y) {
+      x = +x, y = +y;
+
+      switch (this._point) {
+        case 0:
+          this._point = 1;
+          this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y);
+          break;
+
+        case 1:
+          this._point = 2;
+          this._x1 = x, this._y1 = y;
+          break;
+
+        case 2:
+          this._point = 3;
+        // proceed
+
+        default:
+          point$4(this, x, y);
+          break;
+      }
+
+      this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
+      this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
+    }
+  };
+  var curveCardinal = (function custom(tension) {
+    function cardinal(context) {
+      return new Cardinal(context, tension);
+    }
+
+    cardinal.tension = function (tension) {
+      return custom(+tension);
+    };
+
+    return cardinal;
+  })(0);
+
+  function CardinalClosed(context, tension) {
+    this._context = context;
+    this._k = (1 - tension) / 6;
+  }
+  CardinalClosed.prototype = {
+    areaStart: noop$3,
+    areaEnd: noop$3,
+    lineStart: function () {
+      this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 = this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN;
+      this._point = 0;
+    },
+    lineEnd: function () {
+      switch (this._point) {
+        case 1:
+          {
+            this._context.moveTo(this._x3, this._y3);
+
+            this._context.closePath();
+
+            break;
+          }
+
+        case 2:
+          {
+            this._context.lineTo(this._x3, this._y3);
+
+            this._context.closePath();
+
+            break;
+          }
+
+        case 3:
+          {
+            this.point(this._x3, this._y3);
+            this.point(this._x4, this._y4);
+            this.point(this._x5, this._y5);
+            break;
+          }
+      }
+    },
+    point: function (x, y) {
+      x = +x, y = +y;
+
+      switch (this._point) {
+        case 0:
+          this._point = 1;
+          this._x3 = x, this._y3 = y;
+          break;
+
+        case 1:
+          this._point = 2;
+
+          this._context.moveTo(this._x4 = x, this._y4 = y);
+
+          break;
+
+        case 2:
+          this._point = 3;
+          this._x5 = x, this._y5 = y;
+          break;
+
+        default:
+          point$4(this, x, y);
+          break;
+      }
+
+      this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
+      this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
+    }
+  };
+  var curveCardinalClosed = (function custom(tension) {
+    function cardinal(context) {
+      return new CardinalClosed(context, tension);
+    }
+
+    cardinal.tension = function (tension) {
+      return custom(+tension);
+    };
+
+    return cardinal;
+  })(0);
+
+  function CardinalOpen(context, tension) {
+    this._context = context;
+    this._k = (1 - tension) / 6;
+  }
+  CardinalOpen.prototype = {
+    areaStart: function () {
+      this._line = 0;
+    },
+    areaEnd: function () {
+      this._line = NaN;
+    },
+    lineStart: function () {
+      this._x0 = this._x1 = this._x2 = this._y0 = this._y1 = this._y2 = NaN;
+      this._point = 0;
+    },
+    lineEnd: function () {
+      if (this._line || this._line !== 0 && this._point === 3) this._context.closePath();
+      this._line = 1 - this._line;
+    },
+    point: function (x, y) {
+      x = +x, y = +y;
+
+      switch (this._point) {
+        case 0:
+          this._point = 1;
+          break;
+
+        case 1:
+          this._point = 2;
+          break;
+
+        case 2:
+          this._point = 3;
+          this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2);
+          break;
+
+        case 3:
+          this._point = 4;
+        // proceed
+
+        default:
+          point$4(this, x, y);
+          break;
+      }
+
+      this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
+      this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
+    }
+  };
+  var curveCardinalOpen = (function custom(tension) {
+    function cardinal(context) {
+      return new CardinalOpen(context, tension);
+    }
+
+    cardinal.tension = function (tension) {
+      return custom(+tension);
+    };
+
+    return cardinal;
+  })(0);
+
+  function point$3(that, x, y) {
+    var x1 = that._x1,
+        y1 = that._y1,
+        x2 = that._x2,
+        y2 = that._y2;
+
+    if (that._l01_a > epsilon$3) {
+      var a = 2 * that._l01_2a + 3 * that._l01_a * that._l12_a + that._l12_2a,
+          n = 3 * that._l01_a * (that._l01_a + that._l12_a);
+      x1 = (x1 * a - that._x0 * that._l12_2a + that._x2 * that._l01_2a) / n;
+      y1 = (y1 * a - that._y0 * that._l12_2a + that._y2 * that._l01_2a) / n;
+    }
+
+    if (that._l23_a > epsilon$3) {
+      var b = 2 * that._l23_2a + 3 * that._l23_a * that._l12_a + that._l12_2a,
+          m = 3 * that._l23_a * (that._l23_a + that._l12_a);
+      x2 = (x2 * b + that._x1 * that._l23_2a - x * that._l12_2a) / m;
+      y2 = (y2 * b + that._y1 * that._l23_2a - y * that._l12_2a) / m;
+    }
+
+    that._context.bezierCurveTo(x1, y1, x2, y2, that._x2, that._y2);
+  }
+
+  function CatmullRom(context, alpha) {
+    this._context = context;
+    this._alpha = alpha;
+  }
+
+  CatmullRom.prototype = {
+    areaStart: function () {
+      this._line = 0;
+    },
+    areaEnd: function () {
+      this._line = NaN;
+    },
+    lineStart: function () {
+      this._x0 = this._x1 = this._x2 = this._y0 = this._y1 = this._y2 = NaN;
+      this._l01_a = this._l12_a = this._l23_a = this._l01_2a = this._l12_2a = this._l23_2a = this._point = 0;
+    },
+    lineEnd: function () {
+      switch (this._point) {
+        case 2:
+          this._context.lineTo(this._x2, this._y2);
+
+          break;
+
+        case 3:
+          this.point(this._x2, this._y2);
+          break;
+      }
+
+      if (this._line || this._line !== 0 && this._point === 1) this._context.closePath();
+      this._line = 1 - this._line;
+    },
+    point: function (x, y) {
+      x = +x, y = +y;
+
+      if (this._point) {
+        var x23 = this._x2 - x,
+            y23 = this._y2 - y;
+        this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));
+      }
+
+      switch (this._point) {
+        case 0:
+          this._point = 1;
+          this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y);
+          break;
+
+        case 1:
+          this._point = 2;
+          break;
+
+        case 2:
+          this._point = 3;
+        // proceed
+
+        default:
+          point$3(this, x, y);
+          break;
+      }
+
+      this._l01_a = this._l12_a, this._l12_a = this._l23_a;
+      this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;
+      this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
+      this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
+    }
+  };
+  var curveCatmullRom = (function custom(alpha) {
+    function catmullRom(context) {
+      return alpha ? new CatmullRom(context, alpha) : new Cardinal(context, 0);
+    }
+
+    catmullRom.alpha = function (alpha) {
+      return custom(+alpha);
+    };
+
+    return catmullRom;
+  })(0.5);
+
+  function CatmullRomClosed(context, alpha) {
+    this._context = context;
+    this._alpha = alpha;
+  }
+
+  CatmullRomClosed.prototype = {
+    areaStart: noop$3,
+    areaEnd: noop$3,
+    lineStart: function () {
+      this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 = this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN;
+      this._l01_a = this._l12_a = this._l23_a = this._l01_2a = this._l12_2a = this._l23_2a = this._point = 0;
+    },
+    lineEnd: function () {
+      switch (this._point) {
+        case 1:
+          {
+            this._context.moveTo(this._x3, this._y3);
+
+            this._context.closePath();
+
+            break;
+          }
+
+        case 2:
+          {
+            this._context.lineTo(this._x3, this._y3);
+
+            this._context.closePath();
+
+            break;
+          }
+
+        case 3:
+          {
+            this.point(this._x3, this._y3);
+            this.point(this._x4, this._y4);
+            this.point(this._x5, this._y5);
+            break;
+          }
+      }
+    },
+    point: function (x, y) {
+      x = +x, y = +y;
+
+      if (this._point) {
+        var x23 = this._x2 - x,
+            y23 = this._y2 - y;
+        this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));
+      }
+
+      switch (this._point) {
+        case 0:
+          this._point = 1;
+          this._x3 = x, this._y3 = y;
+          break;
+
+        case 1:
+          this._point = 2;
+
+          this._context.moveTo(this._x4 = x, this._y4 = y);
+
+          break;
+
+        case 2:
+          this._point = 3;
+          this._x5 = x, this._y5 = y;
+          break;
+
+        default:
+          point$3(this, x, y);
+          break;
+      }
+
+      this._l01_a = this._l12_a, this._l12_a = this._l23_a;
+      this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;
+      this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
+      this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
+    }
+  };
+  var curveCatmullRomClosed = (function custom(alpha) {
+    function catmullRom(context) {
+      return alpha ? new CatmullRomClosed(context, alpha) : new CardinalClosed(context, 0);
+    }
+
+    catmullRom.alpha = function (alpha) {
+      return custom(+alpha);
+    };
+
+    return catmullRom;
+  })(0.5);
+
+  function CatmullRomOpen(context, alpha) {
+    this._context = context;
+    this._alpha = alpha;
+  }
+
+  CatmullRomOpen.prototype = {
+    areaStart: function () {
+      this._line = 0;
+    },
+    areaEnd: function () {
+      this._line = NaN;
+    },
+    lineStart: function () {
+      this._x0 = this._x1 = this._x2 = this._y0 = this._y1 = this._y2 = NaN;
+      this._l01_a = this._l12_a = this._l23_a = this._l01_2a = this._l12_2a = this._l23_2a = this._point = 0;
+    },
+    lineEnd: function () {
+      if (this._line || this._line !== 0 && this._point === 3) this._context.closePath();
+      this._line = 1 - this._line;
+    },
+    point: function (x, y) {
+      x = +x, y = +y;
+
+      if (this._point) {
+        var x23 = this._x2 - x,
+            y23 = this._y2 - y;
+        this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));
+      }
+
+      switch (this._point) {
+        case 0:
+          this._point = 1;
+          break;
+
+        case 1:
+          this._point = 2;
+          break;
+
+        case 2:
+          this._point = 3;
+          this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2);
+          break;
+
+        case 3:
+          this._point = 4;
+        // proceed
+
+        default:
+          point$3(this, x, y);
+          break;
+      }
+
+      this._l01_a = this._l12_a, this._l12_a = this._l23_a;
+      this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;
+      this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
+      this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
+    }
+  };
+  var curveCatmullRomOpen = (function custom(alpha) {
+    function catmullRom(context) {
+      return alpha ? new CatmullRomOpen(context, alpha) : new CardinalOpen(context, 0);
+    }
+
+    catmullRom.alpha = function (alpha) {
+      return custom(+alpha);
+    };
+
+    return catmullRom;
+  })(0.5);
+
+  function LinearClosed(context) {
+    this._context = context;
+  }
+
+  LinearClosed.prototype = {
+    areaStart: noop$3,
+    areaEnd: noop$3,
+    lineStart: function () {
+      this._point = 0;
+    },
+    lineEnd: function () {
+      if (this._point) this._context.closePath();
+    },
+    point: function (x, y) {
+      x = +x, y = +y;
+      if (this._point) this._context.lineTo(x, y);else this._point = 1, this._context.moveTo(x, y);
+    }
+  };
+  function curveLinearClosed (context) {
+    return new LinearClosed(context);
+  }
+
+  function sign$1(x) {
+    return x < 0 ? -1 : 1;
+  } // Calculate the slopes of the tangents (Hermite-type interpolation) based on
+  // the following paper: Steffen, M. 1990. A Simple Method for Monotonic
+  // Interpolation in One Dimension. Astronomy and Astrophysics, Vol. 239, NO.
+  // NOV(II), P. 443, 1990.
+
+
+  function slope3(that, x2, y2) {
+    var h0 = that._x1 - that._x0,
+        h1 = x2 - that._x1,
+        s0 = (that._y1 - that._y0) / (h0 || h1 < 0 && -0),
+        s1 = (y2 - that._y1) / (h1 || h0 < 0 && -0),
+        p = (s0 * h1 + s1 * h0) / (h0 + h1);
+    return (sign$1(s0) + sign$1(s1)) * Math.min(Math.abs(s0), Math.abs(s1), 0.5 * Math.abs(p)) || 0;
+  } // Calculate a one-sided slope.
+
+
+  function slope2(that, t) {
+    var h = that._x1 - that._x0;
+    return h ? (3 * (that._y1 - that._y0) / h - t) / 2 : t;
+  } // According to https://en.wikipedia.org/wiki/Cubic_Hermite_spline#Representations
+  // "you can express cubic Hermite interpolation in terms of cubic Bézier curves
+  // with respect to the four values p0, p0 + m0 / 3, p1 - m1 / 3, p1".
+
+
+  function point$2(that, t0, t1) {
+    var x0 = that._x0,
+        y0 = that._y0,
+        x1 = that._x1,
+        y1 = that._y1,
+        dx = (x1 - x0) / 3;
+
+    that._context.bezierCurveTo(x0 + dx, y0 + dx * t0, x1 - dx, y1 - dx * t1, x1, y1);
+  }
+
+  function MonotoneX(context) {
+    this._context = context;
+  }
+
+  MonotoneX.prototype = {
+    areaStart: function () {
+      this._line = 0;
+    },
+    areaEnd: function () {
+      this._line = NaN;
+    },
+    lineStart: function () {
+      this._x0 = this._x1 = this._y0 = this._y1 = this._t0 = NaN;
+      this._point = 0;
+    },
+    lineEnd: function () {
+      switch (this._point) {
+        case 2:
+          this._context.lineTo(this._x1, this._y1);
+
+          break;
+
+        case 3:
+          point$2(this, this._t0, slope2(this, this._t0));
+          break;
+      }
+
+      if (this._line || this._line !== 0 && this._point === 1) this._context.closePath();
+      this._line = 1 - this._line;
+    },
+    point: function (x, y) {
+      var t1 = NaN;
+      x = +x, y = +y;
+      if (x === this._x1 && y === this._y1) return; // Ignore coincident points.
+
+      switch (this._point) {
+        case 0:
+          this._point = 1;
+          this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y);
+          break;
+
+        case 1:
+          this._point = 2;
+          break;
+
+        case 2:
+          this._point = 3;
+          point$2(this, slope2(this, t1 = slope3(this, x, y)), t1);
+          break;
+
+        default:
+          point$2(this, this._t0, t1 = slope3(this, x, y));
+          break;
+      }
+
+      this._x0 = this._x1, this._x1 = x;
+      this._y0 = this._y1, this._y1 = y;
+      this._t0 = t1;
+    }
+  };
+
+  function MonotoneY(context) {
+    this._context = new ReflectContext(context);
+  }
+
+  (MonotoneY.prototype = Object.create(MonotoneX.prototype)).point = function (x, y) {
+    MonotoneX.prototype.point.call(this, y, x);
+  };
+
+  function ReflectContext(context) {
+    this._context = context;
+  }
+
+  ReflectContext.prototype = {
+    moveTo: function (x, y) {
+      this._context.moveTo(y, x);
+    },
+    closePath: function () {
+      this._context.closePath();
+    },
+    lineTo: function (x, y) {
+      this._context.lineTo(y, x);
+    },
+    bezierCurveTo: function (x1, y1, x2, y2, x, y) {
+      this._context.bezierCurveTo(y1, x1, y2, x2, y, x);
+    }
+  };
+  function monotoneX(context) {
+    return new MonotoneX(context);
+  }
+  function monotoneY(context) {
+    return new MonotoneY(context);
+  }
+
+  function Natural(context) {
+    this._context = context;
+  }
+
+  Natural.prototype = {
+    areaStart: function () {
+      this._line = 0;
+    },
+    areaEnd: function () {
+      this._line = NaN;
+    },
+    lineStart: function () {
+      this._x = [];
+      this._y = [];
+    },
+    lineEnd: function () {
+      var x = this._x,
+          y = this._y,
+          n = x.length;
+
+      if (n) {
+        this._line ? this._context.lineTo(x[0], y[0]) : this._context.moveTo(x[0], y[0]);
+
+        if (n === 2) {
+          this._context.lineTo(x[1], y[1]);
+        } else {
+          var px = controlPoints(x),
+              py = controlPoints(y);
+
+          for (var i0 = 0, i1 = 1; i1 < n; ++i0, ++i1) {
+            this._context.bezierCurveTo(px[0][i0], py[0][i0], px[1][i0], py[1][i0], x[i1], y[i1]);
+          }
+        }
+      }
+
+      if (this._line || this._line !== 0 && n === 1) this._context.closePath();
+      this._line = 1 - this._line;
+      this._x = this._y = null;
+    },
+    point: function (x, y) {
+      this._x.push(+x);
+
+      this._y.push(+y);
+    }
+  }; // See https://www.particleincell.com/2012/bezier-splines/ for derivation.
+
+  function controlPoints(x) {
+    var i,
+        n = x.length - 1,
+        m,
+        a = new Array(n),
+        b = new Array(n),
+        r = new Array(n);
+    a[0] = 0, b[0] = 2, r[0] = x[0] + 2 * x[1];
+
+    for (i = 1; i < n - 1; ++i) a[i] = 1, b[i] = 4, r[i] = 4 * x[i] + 2 * x[i + 1];
+
+    a[n - 1] = 2, b[n - 1] = 7, r[n - 1] = 8 * x[n - 1] + x[n];
+
+    for (i = 1; i < n; ++i) m = a[i] / b[i - 1], b[i] -= m, r[i] -= m * r[i - 1];
+
+    a[n - 1] = r[n - 1] / b[n - 1];
+
+    for (i = n - 2; i >= 0; --i) a[i] = (r[i] - a[i + 1]) / b[i];
+
+    b[n - 1] = (x[n] + a[n - 1]) / 2;
+
+    for (i = 0; i < n - 1; ++i) b[i] = 2 * x[i + 1] - a[i + 1];
+
+    return [a, b];
+  }
+
+  function curveNatural (context) {
+    return new Natural(context);
+  }
+
+  function Step(context, t) {
+    this._context = context;
+    this._t = t;
+  }
+
+  Step.prototype = {
+    areaStart: function () {
+      this._line = 0;
+    },
+    areaEnd: function () {
+      this._line = NaN;
+    },
+    lineStart: function () {
+      this._x = this._y = NaN;
+      this._point = 0;
+    },
+    lineEnd: function () {
+      if (0 < this._t && this._t < 1 && this._point === 2) this._context.lineTo(this._x, this._y);
+      if (this._line || this._line !== 0 && this._point === 1) this._context.closePath();
+      if (this._line >= 0) this._t = 1 - this._t, this._line = 1 - this._line;
+    },
+    point: function (x, y) {
+      x = +x, y = +y;
+
+      switch (this._point) {
+        case 0:
+          this._point = 1;
+          this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y);
+          break;
+
+        case 1:
+          this._point = 2;
+        // proceed
+
+        default:
+          {
+            if (this._t <= 0) {
+              this._context.lineTo(this._x, y);
+
+              this._context.lineTo(x, y);
+            } else {
+              var x1 = this._x * (1 - this._t) + x * this._t;
+
+              this._context.lineTo(x1, this._y);
+
+              this._context.lineTo(x1, y);
+            }
+
+            break;
+          }
+      }
+
+      this._x = x, this._y = y;
+    }
+  };
+  function curveStep (context) {
+    return new Step(context, 0.5);
+  }
+  function stepBefore(context) {
+    return new Step(context, 0);
+  }
+  function stepAfter(context) {
+    return new Step(context, 1);
+  }
+
+  function domCanvas(w, h) {
+    if (typeof document !== 'undefined' && document.createElement) {
+      const c = document.createElement('canvas');
+
+      if (c && c.getContext) {
+        c.width = w;
+        c.height = h;
+        return c;
+      }
+    }
+
+    return null;
+  }
+
+  const domImage = () => typeof Image !== 'undefined' ? Image : null;
+
+  function initRange(domain, range) {
+    switch (arguments.length) {
+      case 0:
+        break;
+
+      case 1:
+        this.range(domain);
+        break;
+
+      default:
+        this.range(range).domain(domain);
+        break;
+    }
+
+    return this;
+  }
+  function initInterpolator(domain, interpolator) {
+    switch (arguments.length) {
+      case 0:
+        break;
+
+      case 1:
+        {
+          if (typeof domain === "function") this.interpolator(domain);else this.range(domain);
+          break;
+        }
+
+      default:
+        {
+          this.domain(domain);
+          if (typeof interpolator === "function") this.interpolator(interpolator);else this.range(interpolator);
+          break;
+        }
+    }
+
+    return this;
+  }
+
+  const implicit = Symbol("implicit");
+  function ordinal() {
+    var index = new Map(),
+        domain = [],
+        range = [],
+        unknown = implicit;
+
+    function scale(d) {
+      var key = d + "",
+          i = index.get(key);
+
+      if (!i) {
+        if (unknown !== implicit) return unknown;
+        index.set(key, i = domain.push(d));
+      }
+
+      return range[(i - 1) % range.length];
+    }
+
+    scale.domain = function (_) {
+      if (!arguments.length) return domain.slice();
+      domain = [], index = new Map();
+
+      for (const value of _) {
+        const key = value + "";
+        if (index.has(key)) continue;
+        index.set(key, domain.push(value));
+      }
+
+      return scale;
+    };
+
+    scale.range = function (_) {
+      return arguments.length ? (range = Array.from(_), scale) : range.slice();
+    };
+
+    scale.unknown = function (_) {
+      return arguments.length ? (unknown = _, scale) : unknown;
+    };
+
+    scale.copy = function () {
+      return ordinal(domain, range).unknown(unknown);
+    };
+
+    initRange.apply(scale, arguments);
+    return scale;
+  }
+
+  function define (constructor, factory, prototype) {
+    constructor.prototype = factory.prototype = prototype;
+    prototype.constructor = constructor;
+  }
+  function extend(parent, definition) {
+    var prototype = Object.create(parent.prototype);
+
+    for (var key in definition) prototype[key] = definition[key];
+
+    return prototype;
+  }
+
+  function Color() {}
+  var darker = 0.7;
+  var brighter = 1 / darker;
+  var reI = "\\s*([+-]?\\d+)\\s*",
+      reN = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\s*",
+      reP = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)%\\s*",
+      reHex = /^#([0-9a-f]{3,8})$/,
+      reRgbInteger = new RegExp("^rgb\\(" + [reI, reI, reI] + "\\)$"),
+      reRgbPercent = new RegExp("^rgb\\(" + [reP, reP, reP] + "\\)$"),
+      reRgbaInteger = new RegExp("^rgba\\(" + [reI, reI, reI, reN] + "\\)$"),
+      reRgbaPercent = new RegExp("^rgba\\(" + [reP, reP, reP, reN] + "\\)$"),
+      reHslPercent = new RegExp("^hsl\\(" + [reN, reP, reP] + "\\)$"),
+      reHslaPercent = new RegExp("^hsla\\(" + [reN, reP, reP, reN] + "\\)$");
+  var named = {
+    aliceblue: 0xf0f8ff,
+    antiquewhite: 0xfaebd7,
+    aqua: 0x00ffff,
+    aquamarine: 0x7fffd4,
+    azure: 0xf0ffff,
+    beige: 0xf5f5dc,
+    bisque: 0xffe4c4,
+    black: 0x000000,
+    blanchedalmond: 0xffebcd,
+    blue: 0x0000ff,
+    blueviolet: 0x8a2be2,
+    brown: 0xa52a2a,
+    burlywood: 0xdeb887,
+    cadetblue: 0x5f9ea0,
+    chartreuse: 0x7fff00,
+    chocolate: 0xd2691e,
+    coral: 0xff7f50,
+    cornflowerblue: 0x6495ed,
+    cornsilk: 0xfff8dc,
+    crimson: 0xdc143c,
+    cyan: 0x00ffff,
+    darkblue: 0x00008b,
+    darkcyan: 0x008b8b,
+    darkgoldenrod: 0xb8860b,
+    darkgray: 0xa9a9a9,
+    darkgreen: 0x006400,
+    darkgrey: 0xa9a9a9,
+    darkkhaki: 0xbdb76b,
+    darkmagenta: 0x8b008b,
+    darkolivegreen: 0x556b2f,
+    darkorange: 0xff8c00,
+    darkorchid: 0x9932cc,
+    darkred: 0x8b0000,
+    darksalmon: 0xe9967a,
+    darkseagreen: 0x8fbc8f,
+    darkslateblue: 0x483d8b,
+    darkslategray: 0x2f4f4f,
+    darkslategrey: 0x2f4f4f,
+    darkturquoise: 0x00ced1,
+    darkviolet: 0x9400d3,
+    deeppink: 0xff1493,
+    deepskyblue: 0x00bfff,
+    dimgray: 0x696969,
+    dimgrey: 0x696969,
+    dodgerblue: 0x1e90ff,
+    firebrick: 0xb22222,
+    floralwhite: 0xfffaf0,
+    forestgreen: 0x228b22,
+    fuchsia: 0xff00ff,
+    gainsboro: 0xdcdcdc,
+    ghostwhite: 0xf8f8ff,
+    gold: 0xffd700,
+    goldenrod: 0xdaa520,
+    gray: 0x808080,
+    green: 0x008000,
+    greenyellow: 0xadff2f,
+    grey: 0x808080,
+    honeydew: 0xf0fff0,
+    hotpink: 0xff69b4,
+    indianred: 0xcd5c5c,
+    indigo: 0x4b0082,
+    ivory: 0xfffff0,
+    khaki: 0xf0e68c,
+    lavender: 0xe6e6fa,
+    lavenderblush: 0xfff0f5,
+    lawngreen: 0x7cfc00,
+    lemonchiffon: 0xfffacd,
+    lightblue: 0xadd8e6,
+    lightcoral: 0xf08080,
+    lightcyan: 0xe0ffff,
+    lightgoldenrodyellow: 0xfafad2,
+    lightgray: 0xd3d3d3,
+    lightgreen: 0x90ee90,
+    lightgrey: 0xd3d3d3,
+    lightpink: 0xffb6c1,
+    lightsalmon: 0xffa07a,
+    lightseagreen: 0x20b2aa,
+    lightskyblue: 0x87cefa,
+    lightslategray: 0x778899,
+    lightslategrey: 0x778899,
+    lightsteelblue: 0xb0c4de,
+    lightyellow: 0xffffe0,
+    lime: 0x00ff00,
+    limegreen: 0x32cd32,
+    linen: 0xfaf0e6,
+    magenta: 0xff00ff,
+    maroon: 0x800000,
+    mediumaquamarine: 0x66cdaa,
+    mediumblue: 0x0000cd,
+    mediumorchid: 0xba55d3,
+    mediumpurple: 0x9370db,
+    mediumseagreen: 0x3cb371,
+    mediumslateblue: 0x7b68ee,
+    mediumspringgreen: 0x00fa9a,
+    mediumturquoise: 0x48d1cc,
+    mediumvioletred: 0xc71585,
+    midnightblue: 0x191970,
+    mintcream: 0xf5fffa,
+    mistyrose: 0xffe4e1,
+    moccasin: 0xffe4b5,
+    navajowhite: 0xffdead,
+    navy: 0x000080,
+    oldlace: 0xfdf5e6,
+    olive: 0x808000,
+    olivedrab: 0x6b8e23,
+    orange: 0xffa500,
+    orangered: 0xff4500,
+    orchid: 0xda70d6,
+    palegoldenrod: 0xeee8aa,
+    palegreen: 0x98fb98,
+    paleturquoise: 0xafeeee,
+    palevioletred: 0xdb7093,
+    papayawhip: 0xffefd5,
+    peachpuff: 0xffdab9,
+    peru: 0xcd853f,
+    pink: 0xffc0cb,
+    plum: 0xdda0dd,
+    powderblue: 0xb0e0e6,
+    purple: 0x800080,
+    rebeccapurple: 0x663399,
+    red: 0xff0000,
+    rosybrown: 0xbc8f8f,
+    royalblue: 0x4169e1,
+    saddlebrown: 0x8b4513,
+    salmon: 0xfa8072,
+    sandybrown: 0xf4a460,
+    seagreen: 0x2e8b57,
+    seashell: 0xfff5ee,
+    sienna: 0xa0522d,
+    silver: 0xc0c0c0,
+    skyblue: 0x87ceeb,
+    slateblue: 0x6a5acd,
+    slategray: 0x708090,
+    slategrey: 0x708090,
+    snow: 0xfffafa,
+    springgreen: 0x00ff7f,
+    steelblue: 0x4682b4,
+    tan: 0xd2b48c,
+    teal: 0x008080,
+    thistle: 0xd8bfd8,
+    tomato: 0xff6347,
+    turquoise: 0x40e0d0,
+    violet: 0xee82ee,
+    wheat: 0xf5deb3,
+    white: 0xffffff,
+    whitesmoke: 0xf5f5f5,
+    yellow: 0xffff00,
+    yellowgreen: 0x9acd32
+  };
+  define(Color, color$2, {
+    copy: function (channels) {
+      return Object.assign(new this.constructor(), this, channels);
+    },
+    displayable: function () {
+      return this.rgb().displayable();
+    },
+    hex: color_formatHex,
+    // Deprecated! Use color.formatHex.
+    formatHex: color_formatHex,
+    formatHsl: color_formatHsl,
+    formatRgb: color_formatRgb,
+    toString: color_formatRgb
+  });
+
+  function color_formatHex() {
+    return this.rgb().formatHex();
+  }
+
+  function color_formatHsl() {
+    return hslConvert(this).formatHsl();
+  }
+
+  function color_formatRgb() {
+    return this.rgb().formatRgb();
+  }
+
+  function color$2(format) {
+    var m, l;
+    format = (format + "").trim().toLowerCase();
+    return (m = reHex.exec(format)) ? (l = m[1].length, m = parseInt(m[1], 16), l === 6 ? rgbn(m) // #ff0000
+    : l === 3 ? new Rgb(m >> 8 & 0xf | m >> 4 & 0xf0, m >> 4 & 0xf | m & 0xf0, (m & 0xf) << 4 | m & 0xf, 1) // #f00
+    : l === 8 ? rgba(m >> 24 & 0xff, m >> 16 & 0xff, m >> 8 & 0xff, (m & 0xff) / 0xff) // #ff000000
+    : l === 4 ? rgba(m >> 12 & 0xf | m >> 8 & 0xf0, m >> 8 & 0xf | m >> 4 & 0xf0, m >> 4 & 0xf | m & 0xf0, ((m & 0xf) << 4 | m & 0xf) / 0xff) // #f000
+    : null // invalid hex
+    ) : (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0)
+    : (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%)
+    : (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1)
+    : (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1)
+    : (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%)
+    : (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1)
+    : named.hasOwnProperty(format) ? rgbn(named[format]) // eslint-disable-line no-prototype-builtins
+    : format === "transparent" ? new Rgb(NaN, NaN, NaN, 0) : null;
+  }
+
+  function rgbn(n) {
+    return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1);
+  }
+
+  function rgba(r, g, b, a) {
+    if (a <= 0) r = g = b = NaN;
+    return new Rgb(r, g, b, a);
+  }
+
+  function rgbConvert(o) {
+    if (!(o instanceof Color)) o = color$2(o);
+    if (!o) return new Rgb();
+    o = o.rgb();
+    return new Rgb(o.r, o.g, o.b, o.opacity);
+  }
+  function rgb$1(r, g, b, opacity) {
+    return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity);
+  }
+  function Rgb(r, g, b, opacity) {
+    this.r = +r;
+    this.g = +g;
+    this.b = +b;
+    this.opacity = +opacity;
+  }
+  define(Rgb, rgb$1, extend(Color, {
+    brighter: function (k) {
+      k = k == null ? brighter : Math.pow(brighter, k);
+      return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
+    },
+    darker: function (k) {
+      k = k == null ? darker : Math.pow(darker, k);
+      return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
+    },
+    rgb: function () {
+      return this;
+    },
+    displayable: function () {
+      return -0.5 <= this.r && this.r < 255.5 && -0.5 <= this.g && this.g < 255.5 && -0.5 <= this.b && this.b < 255.5 && 0 <= this.opacity && this.opacity <= 1;
+    },
+    hex: rgb_formatHex,
+    // Deprecated! Use color.formatHex.
+    formatHex: rgb_formatHex,
+    formatRgb: rgb_formatRgb,
+    toString: rgb_formatRgb
+  }));
+
+  function rgb_formatHex() {
+    return "#" + hex(this.r) + hex(this.g) + hex(this.b);
+  }
+
+  function rgb_formatRgb() {
+    var a = this.opacity;
+    a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));
+    return (a === 1 ? "rgb(" : "rgba(") + Math.max(0, Math.min(255, Math.round(this.r) || 0)) + ", " + Math.max(0, Math.min(255, Math.round(this.g) || 0)) + ", " + Math.max(0, Math.min(255, Math.round(this.b) || 0)) + (a === 1 ? ")" : ", " + a + ")");
+  }
+
+  function hex(value) {
+    value = Math.max(0, Math.min(255, Math.round(value) || 0));
+    return (value < 16 ? "0" : "") + value.toString(16);
+  }
+
+  function hsla(h, s, l, a) {
+    if (a <= 0) h = s = l = NaN;else if (l <= 0 || l >= 1) h = s = NaN;else if (s <= 0) h = NaN;
+    return new Hsl(h, s, l, a);
+  }
+
+  function hslConvert(o) {
+    if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity);
+    if (!(o instanceof Color)) o = color$2(o);
+    if (!o) return new Hsl();
+    if (o instanceof Hsl) return o;
+    o = o.rgb();
+    var r = o.r / 255,
+        g = o.g / 255,
+        b = o.b / 255,
+        min = Math.min(r, g, b),
+        max = Math.max(r, g, b),
+        h = NaN,
+        s = max - min,
+        l = (max + min) / 2;
+
+    if (s) {
+      if (r === max) h = (g - b) / s + (g < b) * 6;else if (g === max) h = (b - r) / s + 2;else h = (r - g) / s + 4;
+      s /= l < 0.5 ? max + min : 2 - max - min;
+      h *= 60;
+    } else {
+      s = l > 0 && l < 1 ? 0 : h;
+    }
+
+    return new Hsl(h, s, l, o.opacity);
+  }
+  function hsl$2(h, s, l, opacity) {
+    return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity);
+  }
+
+  function Hsl(h, s, l, opacity) {
+    this.h = +h;
+    this.s = +s;
+    this.l = +l;
+    this.opacity = +opacity;
+  }
+
+  define(Hsl, hsl$2, extend(Color, {
+    brighter: function (k) {
+      k = k == null ? brighter : Math.pow(brighter, k);
+      return new Hsl(this.h, this.s, this.l * k, this.opacity);
+    },
+    darker: function (k) {
+      k = k == null ? darker : Math.pow(darker, k);
+      return new Hsl(this.h, this.s, this.l * k, this.opacity);
+    },
+    rgb: function () {
+      var h = this.h % 360 + (this.h < 0) * 360,
+          s = isNaN(h) || isNaN(this.s) ? 0 : this.s,
+          l = this.l,
+          m2 = l + (l < 0.5 ? l : 1 - l) * s,
+          m1 = 2 * l - m2;
+      return new Rgb(hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2), hsl2rgb(h, m1, m2), hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2), this.opacity);
+    },
+    displayable: function () {
+      return (0 <= this.s && this.s <= 1 || isNaN(this.s)) && 0 <= this.l && this.l <= 1 && 0 <= this.opacity && this.opacity <= 1;
+    },
+    formatHsl: function () {
+      var a = this.opacity;
+      a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));
+      return (a === 1 ? "hsl(" : "hsla(") + (this.h || 0) + ", " + (this.s || 0) * 100 + "%, " + (this.l || 0) * 100 + "%" + (a === 1 ? ")" : ", " + a + ")");
+    }
+  }));
+  /* From FvD 13.37, CSS Color Module Level 3 */
+
+  function hsl2rgb(h, m1, m2) {
+    return (h < 60 ? m1 + (m2 - m1) * h / 60 : h < 180 ? m2 : h < 240 ? m1 + (m2 - m1) * (240 - h) / 60 : m1) * 255;
+  }
+
+  const radians$1 = Math.PI / 180;
+  const degrees$2 = 180 / Math.PI;
+
+  const K = 18,
+        Xn = 0.96422,
+        Yn = 1,
+        Zn = 0.82521,
+        t0 = 4 / 29,
+        t1 = 6 / 29,
+        t2 = 3 * t1 * t1,
+        t3 = t1 * t1 * t1;
+
+  function labConvert(o) {
+    if (o instanceof Lab) return new Lab(o.l, o.a, o.b, o.opacity);
+    if (o instanceof Hcl) return hcl2lab(o);
+    if (!(o instanceof Rgb)) o = rgbConvert(o);
+    var r = rgb2lrgb(o.r),
+        g = rgb2lrgb(o.g),
+        b = rgb2lrgb(o.b),
+        y = xyz2lab((0.2225045 * r + 0.7168786 * g + 0.0606169 * b) / Yn),
+        x,
+        z;
+    if (r === g && g === b) x = z = y;else {
+      x = xyz2lab((0.4360747 * r + 0.3850649 * g + 0.1430804 * b) / Xn);
+      z = xyz2lab((0.0139322 * r + 0.0971045 * g + 0.7141733 * b) / Zn);
+    }
+    return new Lab(116 * y - 16, 500 * (x - y), 200 * (y - z), o.opacity);
+  }
+  function lab$1(l, a, b, opacity) {
+    return arguments.length === 1 ? labConvert(l) : new Lab(l, a, b, opacity == null ? 1 : opacity);
+  }
+  function Lab(l, a, b, opacity) {
+    this.l = +l;
+    this.a = +a;
+    this.b = +b;
+    this.opacity = +opacity;
+  }
+  define(Lab, lab$1, extend(Color, {
+    brighter: function (k) {
+      return new Lab(this.l + K * (k == null ? 1 : k), this.a, this.b, this.opacity);
+    },
+    darker: function (k) {
+      return new Lab(this.l - K * (k == null ? 1 : k), this.a, this.b, this.opacity);
+    },
+    rgb: function () {
+      var y = (this.l + 16) / 116,
+          x = isNaN(this.a) ? y : y + this.a / 500,
+          z = isNaN(this.b) ? y : y - this.b / 200;
+      x = Xn * lab2xyz(x);
+      y = Yn * lab2xyz(y);
+      z = Zn * lab2xyz(z);
+      return new Rgb(lrgb2rgb(3.1338561 * x - 1.6168667 * y - 0.4906146 * z), lrgb2rgb(-0.9787684 * x + 1.9161415 * y + 0.0334540 * z), lrgb2rgb(0.0719453 * x - 0.2289914 * y + 1.4052427 * z), this.opacity);
+    }
+  }));
+
+  function xyz2lab(t) {
+    return t > t3 ? Math.pow(t, 1 / 3) : t / t2 + t0;
+  }
+
+  function lab2xyz(t) {
+    return t > t1 ? t * t * t : t2 * (t - t0);
+  }
+
+  function lrgb2rgb(x) {
+    return 255 * (x <= 0.0031308 ? 12.92 * x : 1.055 * Math.pow(x, 1 / 2.4) - 0.055);
+  }
+
+  function rgb2lrgb(x) {
+    return (x /= 255) <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4);
+  }
+
+  function hclConvert(o) {
+    if (o instanceof Hcl) return new Hcl(o.h, o.c, o.l, o.opacity);
+    if (!(o instanceof Lab)) o = labConvert(o);
+    if (o.a === 0 && o.b === 0) return new Hcl(NaN, 0 < o.l && o.l < 100 ? 0 : NaN, o.l, o.opacity);
+    var h = Math.atan2(o.b, o.a) * degrees$2;
+    return new Hcl(h < 0 ? h + 360 : h, Math.sqrt(o.a * o.a + o.b * o.b), o.l, o.opacity);
+  }
+  function hcl$2(h, c, l, opacity) {
+    return arguments.length === 1 ? hclConvert(h) : new Hcl(h, c, l, opacity == null ? 1 : opacity);
+  }
+  function Hcl(h, c, l, opacity) {
+    this.h = +h;
+    this.c = +c;
+    this.l = +l;
+    this.opacity = +opacity;
+  }
+
+  function hcl2lab(o) {
+    if (isNaN(o.h)) return new Lab(o.l, 0, 0, o.opacity);
+    var h = o.h * radians$1;
+    return new Lab(o.l, Math.cos(h) * o.c, Math.sin(h) * o.c, o.opacity);
+  }
+
+  define(Hcl, hcl$2, extend(Color, {
+    brighter: function (k) {
+      return new Hcl(this.h, this.c, this.l + K * (k == null ? 1 : k), this.opacity);
+    },
+    darker: function (k) {
+      return new Hcl(this.h, this.c, this.l - K * (k == null ? 1 : k), this.opacity);
+    },
+    rgb: function () {
+      return hcl2lab(this).rgb();
+    }
+  }));
+
+  var A = -0.14861,
+      B = +1.78277,
+      C$1 = -0.29227,
+      D = -0.90649,
+      E = +1.97294,
+      ED = E * D,
+      EB = E * B,
+      BC_DA = B * C$1 - D * A;
+
+  function cubehelixConvert(o) {
+    if (o instanceof Cubehelix) return new Cubehelix(o.h, o.s, o.l, o.opacity);
+    if (!(o instanceof Rgb)) o = rgbConvert(o);
+    var r = o.r / 255,
+        g = o.g / 255,
+        b = o.b / 255,
+        l = (BC_DA * b + ED * r - EB * g) / (BC_DA + ED - EB),
+        bl = b - l,
+        k = (E * (g - l) - C$1 * bl) / D,
+        s = Math.sqrt(k * k + bl * bl) / (E * l * (1 - l)),
+        // NaN if l=0 or l=1
+    h = s ? Math.atan2(k, bl) * degrees$2 - 120 : NaN;
+    return new Cubehelix(h < 0 ? h + 360 : h, s, l, o.opacity);
+  }
+
+  function cubehelix$2(h, s, l, opacity) {
+    return arguments.length === 1 ? cubehelixConvert(h) : new Cubehelix(h, s, l, opacity == null ? 1 : opacity);
+  }
+  function Cubehelix(h, s, l, opacity) {
+    this.h = +h;
+    this.s = +s;
+    this.l = +l;
+    this.opacity = +opacity;
+  }
+  define(Cubehelix, cubehelix$2, extend(Color, {
+    brighter: function (k) {
+      k = k == null ? brighter : Math.pow(brighter, k);
+      return new Cubehelix(this.h, this.s, this.l * k, this.opacity);
+    },
+    darker: function (k) {
+      k = k == null ? darker : Math.pow(darker, k);
+      return new Cubehelix(this.h, this.s, this.l * k, this.opacity);
+    },
+    rgb: function () {
+      var h = isNaN(this.h) ? 0 : (this.h + 120) * radians$1,
+          l = +this.l,
+          a = isNaN(this.s) ? 0 : this.s * l * (1 - l),
+          cosh = Math.cos(h),
+          sinh = Math.sin(h);
+      return new Rgb(255 * (l + a * (A * cosh + B * sinh)), 255 * (l + a * (C$1 * cosh + D * sinh)), 255 * (l + a * (E * cosh)), this.opacity);
+    }
+  }));
+
+  function basis(t1, v0, v1, v2, v3) {
+    var t2 = t1 * t1,
+        t3 = t2 * t1;
+    return ((1 - 3 * t1 + 3 * t2 - t3) * v0 + (4 - 6 * t2 + 3 * t3) * v1 + (1 + 3 * t1 + 3 * t2 - 3 * t3) * v2 + t3 * v3) / 6;
+  }
+  function basis$1 (values) {
+    var n = values.length - 1;
+    return function (t) {
+      var i = t <= 0 ? t = 0 : t >= 1 ? (t = 1, n - 1) : Math.floor(t * n),
+          v1 = values[i],
+          v2 = values[i + 1],
+          v0 = i > 0 ? values[i - 1] : 2 * v1 - v2,
+          v3 = i < n - 1 ? values[i + 2] : 2 * v2 - v1;
+      return basis((t - i / n) * n, v0, v1, v2, v3);
+    };
+  }
+
+  function basisClosed (values) {
+    var n = values.length;
+    return function (t) {
+      var i = Math.floor(((t %= 1) < 0 ? ++t : t) * n),
+          v0 = values[(i + n - 1) % n],
+          v1 = values[i % n],
+          v2 = values[(i + 1) % n],
+          v3 = values[(i + 2) % n];
+      return basis((t - i / n) * n, v0, v1, v2, v3);
+    };
+  }
+
+  var constant$2 = (x => () => x);
+
+  function linear$1(a, d) {
+    return function (t) {
+      return a + t * d;
+    };
+  }
+
+  function exponential(a, b, y) {
+    return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function (t) {
+      return Math.pow(a + t * b, y);
+    };
+  }
+
+  function hue$1(a, b) {
+    var d = b - a;
+    return d ? linear$1(a, d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d) : constant$2(isNaN(a) ? b : a);
+  }
+  function gamma(y) {
+    return (y = +y) === 1 ? nogamma : function (a, b) {
+      return b - a ? exponential(a, b, y) : constant$2(isNaN(a) ? b : a);
+    };
+  }
+  function nogamma(a, b) {
+    var d = b - a;
+    return d ? linear$1(a, d) : constant$2(isNaN(a) ? b : a);
+  }
+
+  var rgb = (function rgbGamma(y) {
+    var color = gamma(y);
+
+    function rgb(start, end) {
+      var r = color((start = rgb$1(start)).r, (end = rgb$1(end)).r),
+          g = color(start.g, end.g),
+          b = color(start.b, end.b),
+          opacity = nogamma(start.opacity, end.opacity);
+      return function (t) {
+        start.r = r(t);
+        start.g = g(t);
+        start.b = b(t);
+        start.opacity = opacity(t);
+        return start + "";
+      };
+    }
+
+    rgb.gamma = rgbGamma;
+    return rgb;
+  })(1);
+
+  function rgbSpline(spline) {
+    return function (colors) {
+      var n = colors.length,
+          r = new Array(n),
+          g = new Array(n),
+          b = new Array(n),
+          i,
+          color;
+
+      for (i = 0; i < n; ++i) {
+        color = rgb$1(colors[i]);
+        r[i] = color.r || 0;
+        g[i] = color.g || 0;
+        b[i] = color.b || 0;
+      }
+
+      r = spline(r);
+      g = spline(g);
+      b = spline(b);
+      color.opacity = 1;
+      return function (t) {
+        color.r = r(t);
+        color.g = g(t);
+        color.b = b(t);
+        return color + "";
+      };
+    };
+  }
+
+  var rgbBasis = rgbSpline(basis$1);
+  var rgbBasisClosed = rgbSpline(basisClosed);
+
+  function numberArray (a, b) {
+    if (!b) b = [];
+    var n = a ? Math.min(b.length, a.length) : 0,
+        c = b.slice(),
+        i;
+    return function (t) {
+      for (i = 0; i < n; ++i) c[i] = a[i] * (1 - t) + b[i] * t;
+
+      return c;
+    };
+  }
+  function isNumberArray(x) {
+    return ArrayBuffer.isView(x) && !(x instanceof DataView);
+  }
+
+  function array$3 (a, b) {
+    return (isNumberArray(b) ? numberArray : genericArray)(a, b);
+  }
+  function genericArray(a, b) {
+    var nb = b ? b.length : 0,
+        na = a ? Math.min(nb, a.length) : 0,
+        x = new Array(na),
+        c = new Array(nb),
+        i;
+
+    for (i = 0; i < na; ++i) x[i] = interpolate$1(a[i], b[i]);
+
+    for (; i < nb; ++i) c[i] = b[i];
+
+    return function (t) {
+      for (i = 0; i < na; ++i) c[i] = x[i](t);
+
+      return c;
+    };
+  }
+
+  function date$1 (a, b) {
+    var d = new Date();
+    return a = +a, b = +b, function (t) {
+      return d.setTime(a * (1 - t) + b * t), d;
+    };
+  }
+
+  function interpolateNumber (a, b) {
+    return a = +a, b = +b, function (t) {
+      return a * (1 - t) + b * t;
+    };
+  }
+
+  function object (a, b) {
+    var i = {},
+        c = {},
+        k;
+    if (a === null || typeof a !== "object") a = {};
+    if (b === null || typeof b !== "object") b = {};
+
+    for (k in b) {
+      if (k in a) {
+        i[k] = interpolate$1(a[k], b[k]);
+      } else {
+        c[k] = b[k];
+      }
+    }
+
+    return function (t) {
+      for (k in i) c[k] = i[k](t);
+
+      return c;
+    };
+  }
+
+  var reA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g,
+      reB = new RegExp(reA.source, "g");
+
+  function zero$1(b) {
+    return function () {
+      return b;
+    };
+  }
+
+  function one$1(b) {
+    return function (t) {
+      return b(t) + "";
+    };
+  }
+
+  function string (a, b) {
+    var bi = reA.lastIndex = reB.lastIndex = 0,
+        // scan index for next number in b
+    am,
+        // current match in a
+    bm,
+        // current match in b
+    bs,
+        // string preceding current number in b, if any
+    i = -1,
+        // index in s
+    s = [],
+        // string constants and placeholders
+    q = []; // number interpolators
+    // Coerce inputs to strings.
+
+    a = a + "", b = b + ""; // Interpolate pairs of numbers in a & b.
+
+    while ((am = reA.exec(a)) && (bm = reB.exec(b))) {
+      if ((bs = bm.index) > bi) {
+        // a string precedes the next number in b
+        bs = b.slice(bi, bs);
+        if (s[i]) s[i] += bs; // coalesce with previous string
+        else s[++i] = bs;
+      }
+
+      if ((am = am[0]) === (bm = bm[0])) {
+        // numbers in a & b match
+        if (s[i]) s[i] += bm; // coalesce with previous string
+        else s[++i] = bm;
+      } else {
+        // interpolate non-matching numbers
+        s[++i] = null;
+        q.push({
+          i: i,
+          x: interpolateNumber(am, bm)
+        });
+      }
+
+      bi = reB.lastIndex;
+    } // Add remains of b.
+
+
+    if (bi < b.length) {
+      bs = b.slice(bi);
+      if (s[i]) s[i] += bs; // coalesce with previous string
+      else s[++i] = bs;
+    } // Special optimization for only a single match.
+    // Otherwise, interpolate each of the numbers and rejoin the string.
+
+
+    return s.length < 2 ? q[0] ? one$1(q[0].x) : zero$1(b) : (b = q.length, function (t) {
+      for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);
+
+      return s.join("");
+    });
+  }
+
+  function interpolate$1 (a, b) {
+    var t = typeof b,
+        c;
+    return b == null || t === "boolean" ? constant$2(b) : (t === "number" ? interpolateNumber : t === "string" ? (c = color$2(b)) ? (b = c, rgb) : string : b instanceof color$2 ? rgb : b instanceof Date ? date$1 : isNumberArray(b) ? numberArray : Array.isArray(b) ? genericArray : typeof b.valueOf !== "function" && typeof b.toString !== "function" || isNaN(b) ? object : interpolateNumber)(a, b);
+  }
+
+  function discrete$1 (range) {
+    var n = range.length;
+    return function (t) {
+      return range[Math.max(0, Math.min(n - 1, Math.floor(t * n)))];
+    };
+  }
+
+  function hue (a, b) {
+    var i = hue$1(+a, +b);
+    return function (t) {
+      var x = i(t);
+      return x - 360 * Math.floor(x / 360);
+    };
+  }
+
+  function interpolateRound (a, b) {
+    return a = +a, b = +b, function (t) {
+      return Math.round(a * (1 - t) + b * t);
+    };
+  }
+
+  var degrees$1 = 180 / Math.PI;
+  var identity$3 = {
+    translateX: 0,
+    translateY: 0,
+    rotate: 0,
+    skewX: 0,
+    scaleX: 1,
+    scaleY: 1
+  };
+  function decompose (a, b, c, d, e, f) {
+    var scaleX, scaleY, skewX;
+    if (scaleX = Math.sqrt(a * a + b * b)) a /= scaleX, b /= scaleX;
+    if (skewX = a * c + b * d) c -= a * skewX, d -= b * skewX;
+    if (scaleY = Math.sqrt(c * c + d * d)) c /= scaleY, d /= scaleY, skewX /= scaleY;
+    if (a * d < b * c) a = -a, b = -b, skewX = -skewX, scaleX = -scaleX;
+    return {
+      translateX: e,
+      translateY: f,
+      rotate: Math.atan2(b, a) * degrees$1,
+      skewX: Math.atan(skewX) * degrees$1,
+      scaleX: scaleX,
+      scaleY: scaleY
+    };
+  }
+
+  var svgNode;
+  /* eslint-disable no-undef */
+
+  function parseCss(value) {
+    const m = new (typeof DOMMatrix === "function" ? DOMMatrix : WebKitCSSMatrix)(value + "");
+    return m.isIdentity ? identity$3 : decompose(m.a, m.b, m.c, m.d, m.e, m.f);
+  }
+  function parseSvg(value) {
+    if (value == null) return identity$3;
+    if (!svgNode) svgNode = document.createElementNS("http://www.w3.org/2000/svg", "g");
+    svgNode.setAttribute("transform", value);
+    if (!(value = svgNode.transform.baseVal.consolidate())) return identity$3;
+    value = value.matrix;
+    return decompose(value.a, value.b, value.c, value.d, value.e, value.f);
+  }
+
+  function interpolateTransform(parse, pxComma, pxParen, degParen) {
+    function pop(s) {
+      return s.length ? s.pop() + " " : "";
+    }
+
+    function translate(xa, ya, xb, yb, s, q) {
+      if (xa !== xb || ya !== yb) {
+        var i = s.push("translate(", null, pxComma, null, pxParen);
+        q.push({
+          i: i - 4,
+          x: interpolateNumber(xa, xb)
+        }, {
+          i: i - 2,
+          x: interpolateNumber(ya, yb)
+        });
+      } else if (xb || yb) {
+        s.push("translate(" + xb + pxComma + yb + pxParen);
+      }
+    }
+
+    function rotate(a, b, s, q) {
+      if (a !== b) {
+        if (a - b > 180) b += 360;else if (b - a > 180) a += 360; // shortest path
+
+        q.push({
+          i: s.push(pop(s) + "rotate(", null, degParen) - 2,
+          x: interpolateNumber(a, b)
+        });
+      } else if (b) {
+        s.push(pop(s) + "rotate(" + b + degParen);
+      }
+    }
+
+    function skewX(a, b, s, q) {
+      if (a !== b) {
+        q.push({
+          i: s.push(pop(s) + "skewX(", null, degParen) - 2,
+          x: interpolateNumber(a, b)
+        });
+      } else if (b) {
+        s.push(pop(s) + "skewX(" + b + degParen);
+      }
+    }
+
+    function scale(xa, ya, xb, yb, s, q) {
+      if (xa !== xb || ya !== yb) {
+        var i = s.push(pop(s) + "scale(", null, ",", null, ")");
+        q.push({
+          i: i - 4,
+          x: interpolateNumber(xa, xb)
+        }, {
+          i: i - 2,
+          x: interpolateNumber(ya, yb)
+        });
+      } else if (xb !== 1 || yb !== 1) {
+        s.push(pop(s) + "scale(" + xb + "," + yb + ")");
+      }
+    }
+
+    return function (a, b) {
+      var s = [],
+          // string constants and placeholders
+      q = []; // number interpolators
+
+      a = parse(a), b = parse(b);
+      translate(a.translateX, a.translateY, b.translateX, b.translateY, s, q);
+      rotate(a.rotate, b.rotate, s, q);
+      skewX(a.skewX, b.skewX, s, q);
+      scale(a.scaleX, a.scaleY, b.scaleX, b.scaleY, s, q);
+      a = b = null; // gc
+
+      return function (t) {
+        var i = -1,
+            n = q.length,
+            o;
+
+        while (++i < n) s[(o = q[i]).i] = o.x(t);
+
+        return s.join("");
+      };
+    };
+  }
+
+  var interpolateTransformCss = interpolateTransform(parseCss, "px, ", "px)", "deg)");
+  var interpolateTransformSvg = interpolateTransform(parseSvg, ", ", ")", ")");
+
+  var epsilon2$1 = 1e-12;
+
+  function cosh(x) {
+    return ((x = Math.exp(x)) + 1 / x) / 2;
+  }
+
+  function sinh(x) {
+    return ((x = Math.exp(x)) - 1 / x) / 2;
+  }
+
+  function tanh(x) {
+    return ((x = Math.exp(2 * x)) - 1) / (x + 1);
+  }
+
+  var zoom = (function zoomRho(rho, rho2, rho4) {
+    // p0 = [ux0, uy0, w0]
+    // p1 = [ux1, uy1, w1]
+    function zoom(p0, p1) {
+      var ux0 = p0[0],
+          uy0 = p0[1],
+          w0 = p0[2],
+          ux1 = p1[0],
+          uy1 = p1[1],
+          w1 = p1[2],
+          dx = ux1 - ux0,
+          dy = uy1 - uy0,
+          d2 = dx * dx + dy * dy,
+          i,
+          S; // Special case for u0 ≅ u1.
+
+      if (d2 < epsilon2$1) {
+        S = Math.log(w1 / w0) / rho;
+
+        i = function (t) {
+          return [ux0 + t * dx, uy0 + t * dy, w0 * Math.exp(rho * t * S)];
+        };
+      } // General case.
+      else {
+        var d1 = Math.sqrt(d2),
+            b0 = (w1 * w1 - w0 * w0 + rho4 * d2) / (2 * w0 * rho2 * d1),
+            b1 = (w1 * w1 - w0 * w0 - rho4 * d2) / (2 * w1 * rho2 * d1),
+            r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0),
+            r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1);
+        S = (r1 - r0) / rho;
+
+        i = function (t) {
+          var s = t * S,
+              coshr0 = cosh(r0),
+              u = w0 / (rho2 * d1) * (coshr0 * tanh(rho * s + r0) - sinh(r0));
+          return [ux0 + u * dx, uy0 + u * dy, w0 * coshr0 / cosh(rho * s + r0)];
+        };
+      }
+
+      i.duration = S * 1000 * rho / Math.SQRT2;
+      return i;
+    }
+
+    zoom.rho = function (_) {
+      var _1 = Math.max(1e-3, +_),
+          _2 = _1 * _1,
+          _4 = _2 * _2;
+
+      return zoomRho(_1, _2, _4);
+    };
+
+    return zoom;
+  })(Math.SQRT2, 2, 4);
+
+  function hsl(hue) {
+    return function (start, end) {
+      var h = hue((start = hsl$2(start)).h, (end = hsl$2(end)).h),
+          s = nogamma(start.s, end.s),
+          l = nogamma(start.l, end.l),
+          opacity = nogamma(start.opacity, end.opacity);
+      return function (t) {
+        start.h = h(t);
+        start.s = s(t);
+        start.l = l(t);
+        start.opacity = opacity(t);
+        return start + "";
+      };
+    };
+  }
+
+  var hsl$1 = hsl(hue$1);
+  var hslLong = hsl(nogamma);
+
+  function lab(start, end) {
+    var l = nogamma((start = lab$1(start)).l, (end = lab$1(end)).l),
+        a = nogamma(start.a, end.a),
+        b = nogamma(start.b, end.b),
+        opacity = nogamma(start.opacity, end.opacity);
+    return function (t) {
+      start.l = l(t);
+      start.a = a(t);
+      start.b = b(t);
+      start.opacity = opacity(t);
+      return start + "";
+    };
+  }
+
+  function hcl(hue) {
+    return function (start, end) {
+      var h = hue((start = hcl$2(start)).h, (end = hcl$2(end)).h),
+          c = nogamma(start.c, end.c),
+          l = nogamma(start.l, end.l),
+          opacity = nogamma(start.opacity, end.opacity);
+      return function (t) {
+        start.h = h(t);
+        start.c = c(t);
+        start.l = l(t);
+        start.opacity = opacity(t);
+        return start + "";
+      };
+    };
+  }
+
+  var hcl$1 = hcl(hue$1);
+  var hclLong = hcl(nogamma);
+
+  function cubehelix(hue) {
+    return function cubehelixGamma(y) {
+      y = +y;
+
+      function cubehelix(start, end) {
+        var h = hue((start = cubehelix$2(start)).h, (end = cubehelix$2(end)).h),
+            s = nogamma(start.s, end.s),
+            l = nogamma(start.l, end.l),
+            opacity = nogamma(start.opacity, end.opacity);
+        return function (t) {
+          start.h = h(t);
+          start.s = s(t);
+          start.l = l(Math.pow(t, y));
+          start.opacity = opacity(t);
+          return start + "";
+        };
+      }
+
+      cubehelix.gamma = cubehelixGamma;
+      return cubehelix;
+    }(1);
+  }
+
+  var cubehelix$1 = cubehelix(hue$1);
+  var cubehelixLong = cubehelix(nogamma);
+
+  function piecewise(interpolate, values) {
+    if (values === undefined) values = interpolate, interpolate = interpolate$1;
+    var i = 0,
+        n = values.length - 1,
+        v = values[0],
+        I = new Array(n < 0 ? 0 : n);
+
+    while (i < n) I[i] = interpolate(v, v = values[++i]);
+
+    return function (t) {
+      var i = Math.max(0, Math.min(n - 1, Math.floor(t *= n)));
+      return I[i](t - i);
+    };
+  }
+
+  function quantize$2 (interpolator, n) {
+    var samples = new Array(n);
+
+    for (var i = 0; i < n; ++i) samples[i] = interpolator(i / (n - 1));
+
+    return samples;
+  }
+
+  var $$1 = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    interpolate: interpolate$1,
+    interpolateArray: array$3,
+    interpolateBasis: basis$1,
+    interpolateBasisClosed: basisClosed,
+    interpolateDate: date$1,
+    interpolateDiscrete: discrete$1,
+    interpolateHue: hue,
+    interpolateNumber: interpolateNumber,
+    interpolateNumberArray: numberArray,
+    interpolateObject: object,
+    interpolateRound: interpolateRound,
+    interpolateString: string,
+    interpolateTransformCss: interpolateTransformCss,
+    interpolateTransformSvg: interpolateTransformSvg,
+    interpolateZoom: zoom,
+    interpolateRgb: rgb,
+    interpolateRgbBasis: rgbBasis,
+    interpolateRgbBasisClosed: rgbBasisClosed,
+    interpolateHsl: hsl$1,
+    interpolateHslLong: hslLong,
+    interpolateLab: lab,
+    interpolateHcl: hcl$1,
+    interpolateHclLong: hclLong,
+    interpolateCubehelix: cubehelix$1,
+    interpolateCubehelixLong: cubehelixLong,
+    piecewise: piecewise,
+    quantize: quantize$2
+  });
+
+  function constants(x) {
+    return function () {
+      return x;
+    };
+  }
+
+  function number$5(x) {
+    return +x;
+  }
+
+  var unit = [0, 1];
+  function identity$2(x) {
+    return x;
+  }
+
+  function normalize(a, b) {
+    return (b -= a = +a) ? function (x) {
+      return (x - a) / b;
+    } : constants(isNaN(b) ? NaN : 0.5);
+  }
+
+  function clamper(a, b) {
+    var t;
+    if (a > b) t = a, a = b, b = t;
+    return function (x) {
+      return Math.max(a, Math.min(b, x));
+    };
+  } // normalize(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1].
+  // interpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding range value x in [a,b].
+
+
+  function bimap(domain, range, interpolate) {
+    var d0 = domain[0],
+        d1 = domain[1],
+        r0 = range[0],
+        r1 = range[1];
+    if (d1 < d0) d0 = normalize(d1, d0), r0 = interpolate(r1, r0);else d0 = normalize(d0, d1), r0 = interpolate(r0, r1);
+    return function (x) {
+      return r0(d0(x));
+    };
+  }
+
+  function polymap(domain, range, interpolate) {
+    var j = Math.min(domain.length, range.length) - 1,
+        d = new Array(j),
+        r = new Array(j),
+        i = -1; // Reverse descending domains.
+
+    if (domain[j] < domain[0]) {
+      domain = domain.slice().reverse();
+      range = range.slice().reverse();
+    }
+
+    while (++i < j) {
+      d[i] = normalize(domain[i], domain[i + 1]);
+      r[i] = interpolate(range[i], range[i + 1]);
+    }
+
+    return function (x) {
+      var i = bisect$1(domain, x, 1, j) - 1;
+      return r[i](d[i](x));
+    };
+  }
+
+  function copy$2(source, target) {
+    return target.domain(source.domain()).range(source.range()).interpolate(source.interpolate()).clamp(source.clamp()).unknown(source.unknown());
+  }
+  function transformer$3() {
+    var domain = unit,
+        range = unit,
+        interpolate = interpolate$1,
+        transform,
+        untransform,
+        unknown,
+        clamp = identity$2,
+        piecewise,
+        output,
+        input;
+
+    function rescale() {
+      var n = Math.min(domain.length, range.length);
+      if (clamp !== identity$2) clamp = clamper(domain[0], domain[n - 1]);
+      piecewise = n > 2 ? polymap : bimap;
+      output = input = null;
+      return scale;
+    }
+
+    function scale(x) {
+      return x == null || isNaN(x = +x) ? unknown : (output || (output = piecewise(domain.map(transform), range, interpolate)))(transform(clamp(x)));
+    }
+
+    scale.invert = function (y) {
+      return clamp(untransform((input || (input = piecewise(range, domain.map(transform), interpolateNumber)))(y)));
+    };
+
+    scale.domain = function (_) {
+      return arguments.length ? (domain = Array.from(_, number$5), rescale()) : domain.slice();
+    };
+
+    scale.range = function (_) {
+      return arguments.length ? (range = Array.from(_), rescale()) : range.slice();
+    };
+
+    scale.rangeRound = function (_) {
+      return range = Array.from(_), interpolate = interpolateRound, rescale();
+    };
+
+    scale.clamp = function (_) {
+      return arguments.length ? (clamp = _ ? true : identity$2, rescale()) : clamp !== identity$2;
+    };
+
+    scale.interpolate = function (_) {
+      return arguments.length ? (interpolate = _, rescale()) : interpolate;
+    };
+
+    scale.unknown = function (_) {
+      return arguments.length ? (unknown = _, scale) : unknown;
+    };
+
+    return function (t, u) {
+      transform = t, untransform = u;
+      return rescale();
+    };
+  }
+  function continuous$1() {
+    return transformer$3()(identity$2, identity$2);
+  }
+
+  function tickFormat$1(start, stop, count, specifier) {
+    var step = tickStep(start, stop, count),
+        precision;
+    specifier = formatSpecifier(specifier == null ? ",f" : specifier);
+
+    switch (specifier.type) {
+      case "s":
+        {
+          var value = Math.max(Math.abs(start), Math.abs(stop));
+          if (specifier.precision == null && !isNaN(precision = precisionPrefix(step, value))) specifier.precision = precision;
+          return formatPrefix(specifier, value);
+        }
+
+      case "":
+      case "e":
+      case "g":
+      case "p":
+      case "r":
+        {
+          if (specifier.precision == null && !isNaN(precision = precisionRound(step, Math.max(Math.abs(start), Math.abs(stop))))) specifier.precision = precision - (specifier.type === "e");
+          break;
+        }
+
+      case "f":
+      case "%":
+        {
+          if (specifier.precision == null && !isNaN(precision = precisionFixed(step))) specifier.precision = precision - (specifier.type === "%") * 2;
+          break;
+        }
+    }
+
+    return format$3(specifier);
+  }
+
+  function linearish(scale) {
+    var domain = scale.domain;
+
+    scale.ticks = function (count) {
+      var d = domain();
+      return ticks(d[0], d[d.length - 1], count == null ? 10 : count);
+    };
+
+    scale.tickFormat = function (count, specifier) {
+      var d = domain();
+      return tickFormat$1(d[0], d[d.length - 1], count == null ? 10 : count, specifier);
+    };
+
+    scale.nice = function (count) {
+      if (count == null) count = 10;
+      var d = domain();
+      var i0 = 0;
+      var i1 = d.length - 1;
+      var start = d[i0];
+      var stop = d[i1];
+      var prestep;
+      var step;
+      var maxIter = 10;
+
+      if (stop < start) {
+        step = start, start = stop, stop = step;
+        step = i0, i0 = i1, i1 = step;
+      }
+
+      while (maxIter-- > 0) {
+        step = tickIncrement(start, stop, count);
+
+        if (step === prestep) {
+          d[i0] = start;
+          d[i1] = stop;
+          return domain(d);
+        } else if (step > 0) {
+          start = Math.floor(start / step) * step;
+          stop = Math.ceil(stop / step) * step;
+        } else if (step < 0) {
+          start = Math.ceil(start * step) / step;
+          stop = Math.floor(stop * step) / step;
+        } else {
+          break;
+        }
+
+        prestep = step;
+      }
+
+      return scale;
+    };
+
+    return scale;
+  }
+  function linear() {
+    var scale = continuous$1();
+
+    scale.copy = function () {
+      return copy$2(scale, linear());
+    };
+
+    initRange.apply(scale, arguments);
+    return linearish(scale);
+  }
+
+  function identity$1(domain) {
+    var unknown;
+
+    function scale(x) {
+      return x == null || isNaN(x = +x) ? unknown : x;
+    }
+
+    scale.invert = scale;
+
+    scale.domain = scale.range = function (_) {
+      return arguments.length ? (domain = Array.from(_, number$5), scale) : domain.slice();
+    };
+
+    scale.unknown = function (_) {
+      return arguments.length ? (unknown = _, scale) : unknown;
+    };
+
+    scale.copy = function () {
+      return identity$1(domain).unknown(unknown);
+    };
+
+    domain = arguments.length ? Array.from(domain, number$5) : [0, 1];
+    return linearish(scale);
+  }
+
+  function nice(domain, interval) {
+    domain = domain.slice();
+    var i0 = 0,
+        i1 = domain.length - 1,
+        x0 = domain[i0],
+        x1 = domain[i1],
+        t;
+
+    if (x1 < x0) {
+      t = i0, i0 = i1, i1 = t;
+      t = x0, x0 = x1, x1 = t;
+    }
+
+    domain[i0] = interval.floor(x0);
+    domain[i1] = interval.ceil(x1);
+    return domain;
+  }
+
+  function transformLog(x) {
+    return Math.log(x);
+  }
+
+  function transformExp(x) {
+    return Math.exp(x);
+  }
+
+  function transformLogn(x) {
+    return -Math.log(-x);
+  }
+
+  function transformExpn(x) {
+    return -Math.exp(-x);
+  }
+
+  function pow10(x) {
+    return isFinite(x) ? +("1e" + x) : x < 0 ? 0 : x;
+  }
+
+  function powp(base) {
+    return base === 10 ? pow10 : base === Math.E ? Math.exp : function (x) {
+      return Math.pow(base, x);
+    };
+  }
+
+  function logp(base) {
+    return base === Math.E ? Math.log : base === 10 && Math.log10 || base === 2 && Math.log2 || (base = Math.log(base), function (x) {
+      return Math.log(x) / base;
+    });
+  }
+
+  function reflect(f) {
+    return function (x) {
+      return -f(-x);
+    };
+  }
+
+  function loggish(transform) {
+    var scale = transform(transformLog, transformExp),
+        domain = scale.domain,
+        base = 10,
+        logs,
+        pows;
+
+    function rescale() {
+      logs = logp(base), pows = powp(base);
+
+      if (domain()[0] < 0) {
+        logs = reflect(logs), pows = reflect(pows);
+        transform(transformLogn, transformExpn);
+      } else {
+        transform(transformLog, transformExp);
+      }
+
+      return scale;
+    }
+
+    scale.base = function (_) {
+      return arguments.length ? (base = +_, rescale()) : base;
+    };
+
+    scale.domain = function (_) {
+      return arguments.length ? (domain(_), rescale()) : domain();
+    };
+
+    scale.ticks = function (count) {
+      var d = domain(),
+          u = d[0],
+          v = d[d.length - 1],
+          r;
+      if (r = v < u) i = u, u = v, v = i;
+      var i = logs(u),
+          j = logs(v),
+          p,
+          k,
+          t,
+          n = count == null ? 10 : +count,
+          z = [];
+
+      if (!(base % 1) && j - i < n) {
+        i = Math.floor(i), j = Math.ceil(j);
+        if (u > 0) for (; i <= j; ++i) {
+          for (k = 1, p = pows(i); k < base; ++k) {
+            t = p * k;
+            if (t < u) continue;
+            if (t > v) break;
+            z.push(t);
+          }
+        } else for (; i <= j; ++i) {
+          for (k = base - 1, p = pows(i); k >= 1; --k) {
+            t = p * k;
+            if (t < u) continue;
+            if (t > v) break;
+            z.push(t);
+          }
+        }
+        if (z.length * 2 < n) z = ticks(u, v, n);
+      } else {
+        z = ticks(i, j, Math.min(j - i, n)).map(pows);
+      }
+
+      return r ? z.reverse() : z;
+    };
+
+    scale.tickFormat = function (count, specifier) {
+      if (specifier == null) specifier = base === 10 ? ".0e" : ",";
+      if (typeof specifier !== "function") specifier = format$3(specifier);
+      if (count === Infinity) return specifier;
+      if (count == null) count = 10;
+      var k = Math.max(1, base * count / scale.ticks().length); // TODO fast estimate?
+
+      return function (d) {
+        var i = d / pows(Math.round(logs(d)));
+        if (i * base < base - 0.5) i *= base;
+        return i <= k ? specifier(d) : "";
+      };
+    };
+
+    scale.nice = function () {
+      return domain(nice(domain(), {
+        floor: function (x) {
+          return pows(Math.floor(logs(x)));
+        },
+        ceil: function (x) {
+          return pows(Math.ceil(logs(x)));
+        }
+      }));
+    };
+
+    return scale;
+  }
+  function log$2() {
+    var scale = loggish(transformer$3()).domain([1, 10]);
+
+    scale.copy = function () {
+      return copy$2(scale, log$2()).base(scale.base());
+    };
+
+    initRange.apply(scale, arguments);
+    return scale;
+  }
+
+  function transformSymlog(c) {
+    return function (x) {
+      return Math.sign(x) * Math.log1p(Math.abs(x / c));
+    };
+  }
+
+  function transformSymexp(c) {
+    return function (x) {
+      return Math.sign(x) * Math.expm1(Math.abs(x)) * c;
+    };
+  }
+
+  function symlogish(transform) {
+    var c = 1,
+        scale = transform(transformSymlog(c), transformSymexp(c));
+
+    scale.constant = function (_) {
+      return arguments.length ? transform(transformSymlog(c = +_), transformSymexp(c)) : c;
+    };
+
+    return linearish(scale);
+  }
+  function symlog() {
+    var scale = symlogish(transformer$3());
+
+    scale.copy = function () {
+      return copy$2(scale, symlog()).constant(scale.constant());
+    };
+
+    return initRange.apply(scale, arguments);
+  }
+
+  function transformPow(exponent) {
+    return function (x) {
+      return x < 0 ? -Math.pow(-x, exponent) : Math.pow(x, exponent);
+    };
+  }
+
+  function transformSqrt(x) {
+    return x < 0 ? -Math.sqrt(-x) : Math.sqrt(x);
+  }
+
+  function transformSquare(x) {
+    return x < 0 ? -x * x : x * x;
+  }
+
+  function powish(transform) {
+    var scale = transform(identity$2, identity$2),
+        exponent = 1;
+
+    function rescale() {
+      return exponent === 1 ? transform(identity$2, identity$2) : exponent === 0.5 ? transform(transformSqrt, transformSquare) : transform(transformPow(exponent), transformPow(1 / exponent));
+    }
+
+    scale.exponent = function (_) {
+      return arguments.length ? (exponent = +_, rescale()) : exponent;
+    };
+
+    return linearish(scale);
+  }
+  function pow$2() {
+    var scale = powish(transformer$3());
+
+    scale.copy = function () {
+      return copy$2(scale, pow$2()).exponent(scale.exponent());
+    };
+
+    initRange.apply(scale, arguments);
+    return scale;
+  }
+  function sqrt$2() {
+    return pow$2.apply(null, arguments).exponent(0.5);
+  }
+
+  function quantile() {
+    var domain = [],
+        range = [],
+        thresholds = [],
+        unknown;
+
+    function rescale() {
+      var i = 0,
+          n = Math.max(1, range.length);
+      thresholds = new Array(n - 1);
+
+      while (++i < n) thresholds[i - 1] = quantileSorted(domain, i / n);
+
+      return scale;
+    }
+
+    function scale(x) {
+      return x == null || isNaN(x = +x) ? unknown : range[bisect$1(thresholds, x)];
+    }
+
+    scale.invertExtent = function (y) {
+      var i = range.indexOf(y);
+      return i < 0 ? [NaN, NaN] : [i > 0 ? thresholds[i - 1] : domain[0], i < thresholds.length ? thresholds[i] : domain[domain.length - 1]];
+    };
+
+    scale.domain = function (_) {
+      if (!arguments.length) return domain.slice();
+      domain = [];
+
+      for (let d of _) if (d != null && !isNaN(d = +d)) domain.push(d);
+
+      domain.sort(ascending$2);
+      return rescale();
+    };
+
+    scale.range = function (_) {
+      return arguments.length ? (range = Array.from(_), rescale()) : range.slice();
+    };
+
+    scale.unknown = function (_) {
+      return arguments.length ? (unknown = _, scale) : unknown;
+    };
+
+    scale.quantiles = function () {
+      return thresholds.slice();
+    };
+
+    scale.copy = function () {
+      return quantile().domain(domain).range(range).unknown(unknown);
+    };
+
+    return initRange.apply(scale, arguments);
+  }
+
+  function quantize$1() {
+    var x0 = 0,
+        x1 = 1,
+        n = 1,
+        domain = [0.5],
+        range = [0, 1],
+        unknown;
+
+    function scale(x) {
+      return x != null && x <= x ? range[bisect$1(domain, x, 0, n)] : unknown;
+    }
+
+    function rescale() {
+      var i = -1;
+      domain = new Array(n);
+
+      while (++i < n) domain[i] = ((i + 1) * x1 - (i - n) * x0) / (n + 1);
+
+      return scale;
+    }
+
+    scale.domain = function (_) {
+      return arguments.length ? ([x0, x1] = _, x0 = +x0, x1 = +x1, rescale()) : [x0, x1];
+    };
+
+    scale.range = function (_) {
+      return arguments.length ? (n = (range = Array.from(_)).length - 1, rescale()) : range.slice();
+    };
+
+    scale.invertExtent = function (y) {
+      var i = range.indexOf(y);
+      return i < 0 ? [NaN, NaN] : i < 1 ? [x0, domain[0]] : i >= n ? [domain[n - 1], x1] : [domain[i - 1], domain[i]];
+    };
+
+    scale.unknown = function (_) {
+      return arguments.length ? (unknown = _, scale) : scale;
+    };
+
+    scale.thresholds = function () {
+      return domain.slice();
+    };
+
+    scale.copy = function () {
+      return quantize$1().domain([x0, x1]).range(range).unknown(unknown);
+    };
+
+    return initRange.apply(linearish(scale), arguments);
+  }
+
+  function threshold() {
+    var domain = [0.5],
+        range = [0, 1],
+        unknown,
+        n = 1;
+
+    function scale(x) {
+      return x != null && x <= x ? range[bisect$1(domain, x, 0, n)] : unknown;
+    }
+
+    scale.domain = function (_) {
+      return arguments.length ? (domain = Array.from(_), n = Math.min(domain.length, range.length - 1), scale) : domain.slice();
+    };
+
+    scale.range = function (_) {
+      return arguments.length ? (range = Array.from(_), n = Math.min(domain.length, range.length - 1), scale) : range.slice();
+    };
+
+    scale.invertExtent = function (y) {
+      var i = range.indexOf(y);
+      return [domain[i - 1], domain[i]];
+    };
+
+    scale.unknown = function (_) {
+      return arguments.length ? (unknown = _, scale) : unknown;
+    };
+
+    scale.copy = function () {
+      return threshold().domain(domain).range(range).unknown(unknown);
+    };
+
+    return initRange.apply(scale, arguments);
+  }
+
+  function date(t) {
+    return new Date(t);
+  }
+
+  function number$4(t) {
+    return t instanceof Date ? +t : +new Date(+t);
+  }
+
+  function calendar(ticks, tickInterval, year, month, week, day, hour, minute, second, format) {
+    var scale = continuous$1(),
+        invert = scale.invert,
+        domain = scale.domain;
+    var formatMillisecond = format(".%L"),
+        formatSecond = format(":%S"),
+        formatMinute = format("%I:%M"),
+        formatHour = format("%I %p"),
+        formatDay = format("%a %d"),
+        formatWeek = format("%b %d"),
+        formatMonth = format("%B"),
+        formatYear = format("%Y");
+
+    function tickFormat(date) {
+      return (second(date) < date ? formatMillisecond : minute(date) < date ? formatSecond : hour(date) < date ? formatMinute : day(date) < date ? formatHour : month(date) < date ? week(date) < date ? formatDay : formatWeek : year(date) < date ? formatMonth : formatYear)(date);
+    }
+
+    scale.invert = function (y) {
+      return new Date(invert(y));
+    };
+
+    scale.domain = function (_) {
+      return arguments.length ? domain(Array.from(_, number$4)) : domain().map(date);
+    };
+
+    scale.ticks = function (interval) {
+      var d = domain();
+      return ticks(d[0], d[d.length - 1], interval == null ? 10 : interval);
+    };
+
+    scale.tickFormat = function (count, specifier) {
+      return specifier == null ? tickFormat : format(specifier);
+    };
+
+    scale.nice = function (interval) {
+      var d = domain();
+      if (!interval || typeof interval.range !== "function") interval = tickInterval(d[0], d[d.length - 1], interval == null ? 10 : interval);
+      return interval ? domain(nice(d, interval)) : scale;
+    };
+
+    scale.copy = function () {
+      return copy$2(scale, calendar(ticks, tickInterval, year, month, week, day, hour, minute, second, format));
+    };
+
+    return scale;
+  }
+  function time$1() {
+    return initRange.apply(calendar(timeTicks, timeTickInterval, timeYear, timeMonth, sunday, timeDay, timeHour, timeMinute, utcSecond, timeFormat$1).domain([new Date(2000, 0, 1), new Date(2000, 0, 2)]), arguments);
+  }
+
+  function utcTime() {
+    return initRange.apply(calendar(utcTicks, utcTickInterval, utcYear$1, utcMonth$1, utcSunday, utcDay$1, utcHour$1, utcMinute$1, utcSecond, utcFormat$1).domain([Date.UTC(2000, 0, 1), Date.UTC(2000, 0, 2)]), arguments);
+  }
+
+  function transformer$2() {
+    var x0 = 0,
+        x1 = 1,
+        t0,
+        t1,
+        k10,
+        transform,
+        interpolator = identity$2,
+        clamp = false,
+        unknown;
+
+    function scale(x) {
+      return x == null || isNaN(x = +x) ? unknown : interpolator(k10 === 0 ? 0.5 : (x = (transform(x) - t0) * k10, clamp ? Math.max(0, Math.min(1, x)) : x));
+    }
+
+    scale.domain = function (_) {
+      return arguments.length ? ([x0, x1] = _, t0 = transform(x0 = +x0), t1 = transform(x1 = +x1), k10 = t0 === t1 ? 0 : 1 / (t1 - t0), scale) : [x0, x1];
+    };
+
+    scale.clamp = function (_) {
+      return arguments.length ? (clamp = !!_, scale) : clamp;
+    };
+
+    scale.interpolator = function (_) {
+      return arguments.length ? (interpolator = _, scale) : interpolator;
+    };
+
+    function range(interpolate) {
+      return function (_) {
+        var r0, r1;
+        return arguments.length ? ([r0, r1] = _, interpolator = interpolate(r0, r1), scale) : [interpolator(0), interpolator(1)];
+      };
+    }
+
+    scale.range = range(interpolate$1);
+    scale.rangeRound = range(interpolateRound);
+
+    scale.unknown = function (_) {
+      return arguments.length ? (unknown = _, scale) : unknown;
+    };
+
+    return function (t) {
+      transform = t, t0 = t(x0), t1 = t(x1), k10 = t0 === t1 ? 0 : 1 / (t1 - t0);
+      return scale;
+    };
+  }
+
+  function copy$1(source, target) {
+    return target.domain(source.domain()).interpolator(source.interpolator()).clamp(source.clamp()).unknown(source.unknown());
+  }
+  function sequential() {
+    var scale = linearish(transformer$2()(identity$2));
+
+    scale.copy = function () {
+      return copy$1(scale, sequential());
+    };
+
+    return initInterpolator.apply(scale, arguments);
+  }
+  function sequentialLog() {
+    var scale = loggish(transformer$2()).domain([1, 10]);
+
+    scale.copy = function () {
+      return copy$1(scale, sequentialLog()).base(scale.base());
+    };
+
+    return initInterpolator.apply(scale, arguments);
+  }
+  function sequentialSymlog() {
+    var scale = symlogish(transformer$2());
+
+    scale.copy = function () {
+      return copy$1(scale, sequentialSymlog()).constant(scale.constant());
+    };
+
+    return initInterpolator.apply(scale, arguments);
+  }
+  function sequentialPow() {
+    var scale = powish(transformer$2());
+
+    scale.copy = function () {
+      return copy$1(scale, sequentialPow()).exponent(scale.exponent());
+    };
+
+    return initInterpolator.apply(scale, arguments);
+  }
+  function sequentialSqrt() {
+    return sequentialPow.apply(null, arguments).exponent(0.5);
+  }
+
+  function transformer$1() {
+    var x0 = 0,
+        x1 = 0.5,
+        x2 = 1,
+        s = 1,
+        t0,
+        t1,
+        t2,
+        k10,
+        k21,
+        interpolator = identity$2,
+        transform,
+        clamp = false,
+        unknown;
+
+    function scale(x) {
+      return isNaN(x = +x) ? unknown : (x = 0.5 + ((x = +transform(x)) - t1) * (s * x < s * t1 ? k10 : k21), interpolator(clamp ? Math.max(0, Math.min(1, x)) : x));
+    }
+
+    scale.domain = function (_) {
+      return arguments.length ? ([x0, x1, x2] = _, t0 = transform(x0 = +x0), t1 = transform(x1 = +x1), t2 = transform(x2 = +x2), k10 = t0 === t1 ? 0 : 0.5 / (t1 - t0), k21 = t1 === t2 ? 0 : 0.5 / (t2 - t1), s = t1 < t0 ? -1 : 1, scale) : [x0, x1, x2];
+    };
+
+    scale.clamp = function (_) {
+      return arguments.length ? (clamp = !!_, scale) : clamp;
+    };
+
+    scale.interpolator = function (_) {
+      return arguments.length ? (interpolator = _, scale) : interpolator;
+    };
+
+    function range(interpolate) {
+      return function (_) {
+        var r0, r1, r2;
+        return arguments.length ? ([r0, r1, r2] = _, interpolator = piecewise(interpolate, [r0, r1, r2]), scale) : [interpolator(0), interpolator(0.5), interpolator(1)];
+      };
+    }
+
+    scale.range = range(interpolate$1);
+    scale.rangeRound = range(interpolateRound);
+
+    scale.unknown = function (_) {
+      return arguments.length ? (unknown = _, scale) : unknown;
+    };
+
+    return function (t) {
+      transform = t, t0 = t(x0), t1 = t(x1), t2 = t(x2), k10 = t0 === t1 ? 0 : 0.5 / (t1 - t0), k21 = t1 === t2 ? 0 : 0.5 / (t2 - t1), s = t1 < t0 ? -1 : 1;
+      return scale;
+    };
+  }
+
+  function diverging() {
+    var scale = linearish(transformer$1()(identity$2));
+
+    scale.copy = function () {
+      return copy$1(scale, diverging());
+    };
+
+    return initInterpolator.apply(scale, arguments);
+  }
+  function divergingLog() {
+    var scale = loggish(transformer$1()).domain([0.1, 1, 10]);
+
+    scale.copy = function () {
+      return copy$1(scale, divergingLog()).base(scale.base());
+    };
+
+    return initInterpolator.apply(scale, arguments);
+  }
+  function divergingSymlog() {
+    var scale = symlogish(transformer$1());
+
+    scale.copy = function () {
+      return copy$1(scale, divergingSymlog()).constant(scale.constant());
+    };
+
+    return initInterpolator.apply(scale, arguments);
+  }
+  function divergingPow() {
+    var scale = powish(transformer$1());
+
+    scale.copy = function () {
+      return copy$1(scale, divergingPow()).exponent(scale.exponent());
+    };
+
+    return initInterpolator.apply(scale, arguments);
+  }
+  function divergingSqrt() {
+    return divergingPow.apply(null, arguments).exponent(0.5);
+  }
+
+  function bandSpace(count, paddingInner, paddingOuter) {
+    const space = count - paddingInner + paddingOuter * 2;
+    return count ? space > 0 ? space : 1 : 0;
+  }
+
+  const Identity = 'identity';
+  const Linear = 'linear';
+  const Log = 'log';
+  const Pow = 'pow';
+  const Sqrt = 'sqrt';
+  const Symlog = 'symlog';
+  const Time = 'time';
+  const UTC = 'utc';
+  const Sequential = 'sequential';
+  const Diverging = 'diverging';
+  const Quantile = 'quantile';
+  const Quantize = 'quantize';
+  const Threshold = 'threshold';
+  const Ordinal = 'ordinal';
+  const Point = 'point';
+  const Band = 'band';
+  const BinOrdinal = 'bin-ordinal'; // categories
+
+  const Continuous = 'continuous';
+  const Discrete$1 = 'discrete';
+  const Discretizing = 'discretizing';
+  const Interpolating = 'interpolating';
+  const Temporal = 'temporal';
+
+  function invertRange(scale) {
+    return function (_) {
+      let lo = _[0],
+          hi = _[1],
+          t;
+
+      if (hi < lo) {
+        t = lo;
+        lo = hi;
+        hi = t;
+      }
+
+      return [scale.invert(lo), scale.invert(hi)];
+    };
+  }
+
+  function invertRangeExtent(scale) {
+    return function (_) {
+      const range = scale.range();
+      let lo = _[0],
+          hi = _[1],
+          min = -1,
+          max,
+          t,
+          i,
+          n;
+
+      if (hi < lo) {
+        t = lo;
+        lo = hi;
+        hi = t;
+      }
+
+      for (i = 0, n = range.length; i < n; ++i) {
+        if (range[i] >= lo && range[i] <= hi) {
+          if (min < 0) min = i;
+          max = i;
+        }
+      }
+
+      if (min < 0) return undefined;
+      lo = scale.invertExtent(range[min]);
+      hi = scale.invertExtent(range[max]);
+      return [lo[0] === undefined ? lo[1] : lo[0], hi[1] === undefined ? hi[0] : hi[1]];
+    };
+  }
+
+  function band() {
+    const scale = ordinal().unknown(undefined),
+          domain = scale.domain,
+          ordinalRange = scale.range;
+    let range$1 = [0, 1],
+        step,
+        bandwidth,
+        round = false,
+        paddingInner = 0,
+        paddingOuter = 0,
+        align = 0.5;
+    delete scale.unknown;
+
+    function rescale() {
+      const n = domain().length,
+            reverse = range$1[1] < range$1[0],
+            stop = range$1[1 - reverse],
+            space = bandSpace(n, paddingInner, paddingOuter);
+      let start = range$1[reverse - 0];
+      step = (stop - start) / (space || 1);
+
+      if (round) {
+        step = Math.floor(step);
+      }
+
+      start += (stop - start - step * (n - paddingInner)) * align;
+      bandwidth = step * (1 - paddingInner);
+
+      if (round) {
+        start = Math.round(start);
+        bandwidth = Math.round(bandwidth);
+      }
+
+      const values = range$1$1(n).map(i => start + step * i);
+      return ordinalRange(reverse ? values.reverse() : values);
+    }
+
+    scale.domain = function (_) {
+      if (arguments.length) {
+        domain(_);
+        return rescale();
+      } else {
+        return domain();
+      }
+    };
+
+    scale.range = function (_) {
+      if (arguments.length) {
+        range$1 = [+_[0], +_[1]];
+        return rescale();
+      } else {
+        return range$1.slice();
+      }
+    };
+
+    scale.rangeRound = function (_) {
+      range$1 = [+_[0], +_[1]];
+      round = true;
+      return rescale();
+    };
+
+    scale.bandwidth = function () {
+      return bandwidth;
+    };
+
+    scale.step = function () {
+      return step;
+    };
+
+    scale.round = function (_) {
+      if (arguments.length) {
+        round = !!_;
+        return rescale();
+      } else {
+        return round;
+      }
+    };
+
+    scale.padding = function (_) {
+      if (arguments.length) {
+        paddingOuter = Math.max(0, Math.min(1, _));
+        paddingInner = paddingOuter;
+        return rescale();
+      } else {
+        return paddingInner;
+      }
+    };
+
+    scale.paddingInner = function (_) {
+      if (arguments.length) {
+        paddingInner = Math.max(0, Math.min(1, _));
+        return rescale();
+      } else {
+        return paddingInner;
+      }
+    };
+
+    scale.paddingOuter = function (_) {
+      if (arguments.length) {
+        paddingOuter = Math.max(0, Math.min(1, _));
+        return rescale();
+      } else {
+        return paddingOuter;
+      }
+    };
+
+    scale.align = function (_) {
+      if (arguments.length) {
+        align = Math.max(0, Math.min(1, _));
+        return rescale();
+      } else {
+        return align;
+      }
+    };
+
+    scale.invertRange = function (_) {
+      // bail if range has null or undefined values
+      if (_[0] == null || _[1] == null) return;
+      const reverse = range$1[1] < range$1[0],
+            values = reverse ? ordinalRange().reverse() : ordinalRange(),
+            n = values.length - 1;
+      let lo = +_[0],
+          hi = +_[1],
+          a,
+          b,
+          t; // bail if either range endpoint is invalid
+
+      if (lo !== lo || hi !== hi) return; // order range inputs, bail if outside of scale range
+
+      if (hi < lo) {
+        t = lo;
+        lo = hi;
+        hi = t;
+      }
+
+      if (hi < values[0] || lo > range$1[1 - reverse]) return; // binary search to index into scale range
+
+      a = Math.max(0, bisectRight$1(values, lo) - 1);
+      b = lo === hi ? a : bisectRight$1(values, hi) - 1; // increment index a if lo is within padding gap
+
+      if (lo - values[a] > bandwidth + 1e-10) ++a;
+
+      if (reverse) {
+        // map + swap
+        t = a;
+        a = n - b;
+        b = n - t;
+      }
+
+      return a > b ? undefined : domain().slice(a, b + 1);
+    };
+
+    scale.invert = function (_) {
+      const value = scale.invertRange([_, _]);
+      return value ? value[0] : value;
+    };
+
+    scale.copy = function () {
+      return band().domain(domain()).range(range$1).round(round).paddingInner(paddingInner).paddingOuter(paddingOuter).align(align);
+    };
+
+    return rescale();
+  }
+
+  function pointish(scale) {
+    const copy = scale.copy;
+    scale.padding = scale.paddingOuter;
+    delete scale.paddingInner;
+
+    scale.copy = function () {
+      return pointish(copy());
+    };
+
+    return scale;
+  }
+
+  function point$1() {
+    return pointish(band().paddingInner(1));
+  }
+
+  var map = Array.prototype.map;
+
+  function numbers(_) {
+    return map.call(_, toNumber);
+  }
+
+  const slice$1 = Array.prototype.slice;
+
+  function scaleBinOrdinal() {
+    let domain = [],
+        range = [];
+
+    function scale(x) {
+      return x == null || x !== x ? undefined : range[(bisect$1(domain, x) - 1) % range.length];
+    }
+
+    scale.domain = function (_) {
+      if (arguments.length) {
+        domain = numbers(_);
+        return scale;
+      } else {
+        return domain.slice();
+      }
+    };
+
+    scale.range = function (_) {
+      if (arguments.length) {
+        range = slice$1.call(_);
+        return scale;
+      } else {
+        return range.slice();
+      }
+    };
+
+    scale.tickFormat = function (count, specifier) {
+      return tickFormat$1(domain[0], peek$1(domain), count == null ? 10 : count, specifier);
+    };
+
+    scale.copy = function () {
+      return scaleBinOrdinal().domain(scale.domain()).range(scale.range());
+    };
+
+    return scale;
+  }
+
+  const scales = {};
+  /**
+   * Augment scales with their type and needed inverse methods.
+   */
+
+  function create$2(type, constructor, metadata) {
+    const ctr = function scale() {
+      const s = constructor();
+
+      if (!s.invertRange) {
+        s.invertRange = s.invert ? invertRange(s) : s.invertExtent ? invertRangeExtent(s) : undefined;
+      }
+
+      s.type = type;
+      return s;
+    };
+
+    ctr.metadata = toSet(array$5(metadata));
+    return ctr;
+  }
+
+  function scale$4(type, scale, metadata) {
+    if (arguments.length > 1) {
+      scales[type] = create$2(type, scale, metadata);
+      return this;
+    } else {
+      return isValidScaleType(type) ? scales[type] : undefined;
+    }
+  } // identity scale
+
+
+  scale$4(Identity, identity$1); // continuous scales
+
+  scale$4(Linear, linear, Continuous);
+  scale$4(Log, log$2, [Continuous, Log]);
+  scale$4(Pow, pow$2, Continuous);
+  scale$4(Sqrt, sqrt$2, Continuous);
+  scale$4(Symlog, symlog, Continuous);
+  scale$4(Time, time$1, [Continuous, Temporal]);
+  scale$4(UTC, utcTime, [Continuous, Temporal]); // sequential scales
+
+  scale$4(Sequential, sequential, [Continuous, Interpolating]); // backwards compat
+
+  scale$4(`${Sequential}-${Linear}`, sequential, [Continuous, Interpolating]);
+  scale$4(`${Sequential}-${Log}`, sequentialLog, [Continuous, Interpolating, Log]);
+  scale$4(`${Sequential}-${Pow}`, sequentialPow, [Continuous, Interpolating]);
+  scale$4(`${Sequential}-${Sqrt}`, sequentialSqrt, [Continuous, Interpolating]);
+  scale$4(`${Sequential}-${Symlog}`, sequentialSymlog, [Continuous, Interpolating]); // diverging scales
+
+  scale$4(`${Diverging}-${Linear}`, diverging, [Continuous, Interpolating]);
+  scale$4(`${Diverging}-${Log}`, divergingLog, [Continuous, Interpolating, Log]);
+  scale$4(`${Diverging}-${Pow}`, divergingPow, [Continuous, Interpolating]);
+  scale$4(`${Diverging}-${Sqrt}`, divergingSqrt, [Continuous, Interpolating]);
+  scale$4(`${Diverging}-${Symlog}`, divergingSymlog, [Continuous, Interpolating]); // discretizing scales
+
+  scale$4(Quantile, quantile, [Discretizing, Quantile]);
+  scale$4(Quantize, quantize$1, Discretizing);
+  scale$4(Threshold, threshold, Discretizing); // discrete scales
+
+  scale$4(BinOrdinal, scaleBinOrdinal, [Discrete$1, Discretizing]);
+  scale$4(Ordinal, ordinal, Discrete$1);
+  scale$4(Band, band, Discrete$1);
+  scale$4(Point, point$1, Discrete$1);
+
+  function isValidScaleType(type) {
+    return has$1(scales, type);
+  }
+
+  function hasType(key, type) {
+    const s = scales[key];
+    return s && s.metadata[type];
+  }
+
+  function isContinuous(key) {
+    return hasType(key, Continuous);
+  }
+
+  function isDiscrete(key) {
+    return hasType(key, Discrete$1);
+  }
+
+  function isDiscretizing(key) {
+    return hasType(key, Discretizing);
+  }
+
+  function isLogarithmic(key) {
+    return hasType(key, Log);
+  }
+
+  function isTemporal(key) {
+    return hasType(key, Temporal);
+  }
+
+  function isInterpolating(key) {
+    return hasType(key, Interpolating);
+  }
+
+  function isQuantile(key) {
+    return hasType(key, Quantile);
+  }
+
+  const scaleProps = ['clamp', 'base', 'constant', 'exponent'];
+
+  function interpolateRange(interpolator, range) {
+    const start = range[0],
+          span = peek$1(range) - start;
+    return function (i) {
+      return interpolator(start + i * span);
+    };
+  }
+
+  function interpolateColors(colors, type, gamma) {
+    return piecewise(interpolate(type || 'rgb', gamma), colors);
+  }
+
+  function quantizeInterpolator(interpolator, count) {
+    const samples = new Array(count),
+          n = count + 1;
+
+    for (let i = 0; i < count;) samples[i] = interpolator(++i / n);
+
+    return samples;
+  }
+
+  function scaleFraction(scale$1, min, max) {
+    const delta = max - min;
+    let i, t, s;
+
+    if (!delta || !Number.isFinite(delta)) {
+      return constant$4(0.5);
+    } else {
+      i = (t = scale$1.type).indexOf('-');
+      t = i < 0 ? t : t.slice(i + 1);
+      s = scale$4(t)().domain([min, max]).range([0, 1]);
+      scaleProps.forEach(m => scale$1[m] ? s[m](scale$1[m]()) : 0);
+      return s;
+    }
+  }
+
+  function interpolate(type, gamma) {
+    const interp = $$1[method(type)];
+    return gamma != null && interp && interp.gamma ? interp.gamma(gamma) : interp;
+  }
+
+  function method(type) {
+    return 'interpolate' + type.toLowerCase().split('-').map(s => s[0].toUpperCase() + s.slice(1)).join('');
+  }
+
+  const continuous = {
+    blues: 'cfe1f2bed8eca8cee58fc1de74b2d75ba3cf4592c63181bd206fb2125ca40a4a90',
+    greens: 'd3eecdc0e6baabdda594d3917bc77d60ba6c46ab5e329a512089430e7735036429',
+    greys: 'e2e2e2d4d4d4c4c4c4b1b1b19d9d9d8888887575756262624d4d4d3535351e1e1e',
+    oranges: 'fdd8b3fdc998fdb87bfda55efc9244f87f2cf06b18e4580bd14904b93d029f3303',
+    purples: 'e2e1efd4d4e8c4c5e0b4b3d6a3a0cc928ec3827cb97566ae684ea25c3696501f8c',
+    reds: 'fdc9b4fcb49afc9e80fc8767fa7051f6573fec3f2fdc2a25c81b1db21218970b13',
+    blueGreen: 'd5efedc1e8e0a7ddd18bd2be70c6a958ba9144ad77319c5d2089460e7736036429',
+    bluePurple: 'ccddecbad0e4a8c2dd9ab0d4919cc98d85be8b6db28a55a6873c99822287730f71',
+    greenBlue: 'd3eecec5e8c3b1e1bb9bd8bb82cec269c2ca51b2cd3c9fc7288abd1675b10b60a1',
+    orangeRed: 'fddcaffdcf9bfdc18afdad77fb9562f67d53ee6545e24932d32d1ebf130da70403',
+    purpleBlue: 'dbdaebc8cee4b1c3de97b7d87bacd15b9fc93a90c01e7fb70b70ab056199045281',
+    purpleBlueGreen: 'dbd8eac8cee4b0c3de93b7d872acd1549fc83892bb1c88a3097f8702736b016353',
+    purpleRed: 'dcc9e2d3b3d7ce9eccd186c0da6bb2e14da0e23189d91e6fc61159ab07498f023a',
+    redPurple: 'fccfccfcbec0faa9b8f98faff571a5ec539ddb3695c41b8aa908808d0179700174',
+    yellowGreen: 'e4f4acd1eca0b9e2949ed68880c97c62bb6e47aa5e3297502083440e723b036034',
+    yellowOrangeBrown: 'feeaa1fedd84fecc63feb746fca031f68921eb7215db5e0bc54c05ab3d038f3204',
+    yellowOrangeRed: 'fee087fed16ffebd59fea849fd903efc7335f9522bee3423de1b20ca0b22af0225',
+    blueOrange: '134b852f78b35da2cb9dcae1d2e5eff2f0ebfce0bafbbf74e8932fc5690d994a07',
+    brownBlueGreen: '704108a0651ac79548e3c78af3e6c6eef1eac9e9e48ed1c74da79e187a72025147',
+    purpleGreen: '5b1667834792a67fb6c9aed3e6d6e8eff0efd9efd5aedda971bb75368e490e5e29',
+    purpleOrange: '4114696647968f83b7b9b4d6dadbebf3eeeafce0bafbbf74e8932fc5690d994a07',
+    redBlue: '8c0d25bf363adf745ef4ae91fbdbc9f2efeed2e5ef9dcae15da2cb2f78b3134b85',
+    redGrey: '8c0d25bf363adf745ef4ae91fcdccbfaf4f1e2e2e2c0c0c0969696646464343434',
+    yellowGreenBlue: 'eff9bddbf1b4bde5b594d5b969c5be45b4c22c9ec02182b82163aa23479c1c3185',
+    redYellowBlue: 'a50026d4322cf16e43fcac64fedd90faf8c1dcf1ecabd6e875abd04a74b4313695',
+    redYellowGreen: 'a50026d4322cf16e43fcac63fedd8df9f7aed7ee8ea4d86e64bc6122964f006837',
+    pinkYellowGreen: '8e0152c0267edd72adf0b3d6faddedf5f3efe1f2cab6de8780bb474f9125276419',
+    spectral: '9e0142d13c4bf0704afcac63fedd8dfbf8b0e0f3a1a9dda269bda94288b55e4fa2',
+    viridis: '440154470e61481a6c482575472f7d443a834144873d4e8a39568c35608d31688e2d708e2a788e27818e23888e21918d1f988b1fa08822a8842ab07f35b77943bf7154c56866cc5d7ad1518fd744a5db36bcdf27d2e21be9e51afde725',
+    magma: '0000040404130b0924150e3720114b2c11603b0f704a107957157e651a80721f817f24828c29819a2e80a8327db6377ac43c75d1426fde4968e95462f1605df76f5cfa7f5efc8f65fe9f6dfeaf78febf84fece91fddea0fcedaffcfdbf',
+    inferno: '0000040403130c0826170c3b240c4f330a5f420a68500d6c5d126e6b176e781c6d86216b932667a12b62ae305cbb3755c73e4cd24644dd513ae65c30ed6925f3771af8850ffb9506fca50afcb519fac62df6d645f2e661f3f484fcffa4',
+    plasma: '0d088723069033059742039d5002a25d01a66a00a87801a88405a7900da49c179ea72198b12a90ba3488c33d80cb4779d35171da5a69e16462e76e5bed7953f2834cf68f44fa9a3dfca636fdb32ffec029fcce25f9dc24f5ea27f0f921',
+    cividis: '00205100235800265d002961012b65042e670831690d346b11366c16396d1c3c6e213f6e26426e2c456e31476e374a6e3c4d6e42506e47536d4c566d51586e555b6e5a5e6e5e616e62646f66676f6a6a706e6d717270717573727976737c79747f7c75827f758682768985778c8877908b78938e789691789a94789e9778a19b78a59e77a9a177aea575b2a874b6ab73bbaf71c0b26fc5b66dc9b96acebd68d3c065d8c462ddc85fe2cb5ce7cf58ebd355f0d652f3da4ff7de4cfae249fce647',
+    rainbow: '6e40aa883eb1a43db3bf3cafd83fa4ee4395fe4b83ff576eff6659ff7847ff8c38f3a130e2b72fcfcc36bee044aff05b8ff4576ff65b52f6673af27828ea8d1ddfa319d0b81cbecb23abd82f96e03d82e14c6edb5a5dd0664dbf6e40aa',
+    sinebow: 'ff4040fc582af47218e78d0bd5a703bfbf00a7d5038de70b72f41858fc2a40ff402afc5818f4720be78d03d5a700bfbf03a7d50b8de71872f42a58fc4040ff582afc7218f48d0be7a703d5bf00bfd503a7e70b8df41872fc2a58ff4040',
+    turbo: '23171b32204a3e2a71453493493eae4b49c54a53d7485ee44569ee4074f53c7ff8378af93295f72e9ff42ba9ef28b3e926bce125c5d925cdcf27d5c629dcbc2de3b232e9a738ee9d3ff39347f68950f9805afc7765fd6e70fe667cfd5e88fc5795fb51a1f84badf545b9f140c5ec3cd0e637dae034e4d931ecd12ef4c92bfac029ffb626ffad24ffa223ff9821ff8d1fff821dff771cfd6c1af76118f05616e84b14df4111d5380fcb2f0dc0260ab61f07ac1805a313029b0f00950c00910b00',
+    browns: 'eedbbdecca96e9b97ae4a865dc9856d18954c7784cc0673fb85536ad44339f3632',
+    tealBlues: 'bce4d89dd3d181c3cb65b3c245a2b9368fae347da0306a932c5985',
+    teals: 'bbdfdfa2d4d58ac9c975bcbb61b0af4da5a43799982b8b8c1e7f7f127273006667',
+    warmGreys: 'dcd4d0cec5c1c0b8b4b3aaa7a59c9998908c8b827f7e7673726866665c5a59504e',
+    goldGreen: 'f4d166d5ca60b6c35c98bb597cb25760a6564b9c533f8f4f33834a257740146c36',
+    goldOrange: 'f4d166f8be5cf8aa4cf5983bf3852aef701be2621fd65322c54923b142239e3a26',
+    goldRed: 'f4d166f6be59f9aa51fc964ef6834bee734ae56249db5247cf4244c43141b71d3e',
+    lightGreyRed: 'efe9e6e1dad7d5cbc8c8bdb9bbaea9cd967ddc7b43e15f19df4011dc000b',
+    lightGreyTeal: 'e4eaead6dcddc8ced2b7c2c7a6b4bc64b0bf22a6c32295c11f85be1876bc',
+    lightMulti: 'e0f1f2c4e9d0b0de9fd0e181f6e072f6c053f3993ef77440ef4a3c',
+    lightOrange: 'f2e7daf7d5baf9c499fab184fa9c73f68967ef7860e8645bde515bd43d5b',
+    lightTealBlue: 'e3e9e0c0dccf9aceca7abfc859afc0389fb9328dad2f7ca0276b95255988',
+    darkBlue: '3232322d46681a5c930074af008cbf05a7ce25c0dd38daed50f3faffffff',
+    darkGold: '3c3c3c584b37725e348c7631ae8b2bcfa424ecc31ef9de30fff184ffffff',
+    darkGreen: '3a3a3a215748006f4d048942489e4276b340a6c63dd2d836ffeb2cffffaa',
+    darkMulti: '3737371f5287197d8c29a86995ce3fffe800ffffff',
+    darkRed: '3434347036339e3c38cc4037e75d1eec8620eeab29f0ce32ffeb2c'
+  };
+  const discrete = {
+    category10: '1f77b4ff7f0e2ca02cd627289467bd8c564be377c27f7f7fbcbd2217becf',
+    category20: '1f77b4aec7e8ff7f0effbb782ca02c98df8ad62728ff98969467bdc5b0d58c564bc49c94e377c2f7b6d27f7f7fc7c7c7bcbd22dbdb8d17becf9edae5',
+    category20b: '393b795254a36b6ecf9c9ede6379398ca252b5cf6bcedb9c8c6d31bd9e39e7ba52e7cb94843c39ad494ad6616be7969c7b4173a55194ce6dbdde9ed6',
+    category20c: '3182bd6baed69ecae1c6dbefe6550dfd8d3cfdae6bfdd0a231a35474c476a1d99bc7e9c0756bb19e9ac8bcbddcdadaeb636363969696bdbdbdd9d9d9',
+    tableau10: '4c78a8f58518e4575672b7b254a24beeca3bb279a2ff9da69d755dbab0ac',
+    tableau20: '4c78a89ecae9f58518ffbf7954a24b88d27ab79a20f2cf5b43989483bcb6e45756ff9d9879706ebab0acd67195fcbfd2b279a2d6a5c99e765fd8b5a5',
+    accent: '7fc97fbeaed4fdc086ffff99386cb0f0027fbf5b17666666',
+    dark2: '1b9e77d95f027570b3e7298a66a61ee6ab02a6761d666666',
+    paired: 'a6cee31f78b4b2df8a33a02cfb9a99e31a1cfdbf6fff7f00cab2d66a3d9affff99b15928',
+    pastel1: 'fbb4aeb3cde3ccebc5decbe4fed9a6ffffcce5d8bdfddaecf2f2f2',
+    pastel2: 'b3e2cdfdcdaccbd5e8f4cae4e6f5c9fff2aef1e2cccccccc',
+    set1: 'e41a1c377eb84daf4a984ea3ff7f00ffff33a65628f781bf999999',
+    set2: '66c2a5fc8d628da0cbe78ac3a6d854ffd92fe5c494b3b3b3',
+    set3: '8dd3c7ffffb3bebadafb807280b1d3fdb462b3de69fccde5d9d9d9bc80bdccebc5ffed6f'
+  };
+
+  function colors(palette) {
+    const n = palette.length / 6 | 0,
+          c = new Array(n);
+
+    for (let i = 0; i < n;) {
+      c[i] = '#' + palette.slice(i * 6, ++i * 6);
+    }
+
+    return c;
+  }
+
+  function apply(_, f) {
+    for (const k in _) scheme(k, f(_[k]));
+  }
+
+  const schemes = {};
+  apply(discrete, colors);
+  apply(continuous, _ => interpolateColors(colors(_)));
+
+  function scheme(name, scheme) {
+    name = name && name.toLowerCase();
+
+    if (arguments.length > 1) {
+      schemes[name] = scheme;
+      return this;
+    } else {
+      return schemes[name];
+    }
+  }
+
+  const SymbolLegend = 'symbol';
+  const DiscreteLegend = 'discrete';
+  const GradientLegend = 'gradient';
+
+  const defaultFormatter = value => isArray(value) ? value.map(v => String(v)) : String(value);
+
+  const ascending$1 = (a, b) => a[1] - b[1];
+
+  const descending = (a, b) => b[1] - a[1];
+  /**
+   * Determine the tick count or interval function.
+   * @param {Scale} scale - The scale for which to generate tick values.
+   * @param {*} count - The desired tick count or interval specifier.
+   * @param {number} minStep - The desired minimum step between tick values.
+   * @return {*} - The tick count or interval function.
+   */
+
+
+  function tickCount(scale, count, minStep) {
+    let step;
+
+    if (isNumber$1(count)) {
+      if (scale.bins) {
+        count = Math.max(count, scale.bins.length);
+      }
+
+      if (minStep != null) {
+        count = Math.min(count, Math.floor(span(scale.domain()) / minStep || 1));
+      }
+    }
+
+    if (isObject(count)) {
+      step = count.step;
+      count = count.interval;
+    }
+
+    if (isString(count)) {
+      count = scale.type === Time ? timeInterval(count) : scale.type == UTC ? utcInterval(count) : error('Only time and utc scales accept interval strings.');
+      if (step) count = count.every(step);
+    }
+
+    return count;
+  }
+  /**
+   * Filter a set of candidate tick values, ensuring that only tick values
+   * that lie within the scale range are included.
+   * @param {Scale} scale - The scale for which to generate tick values.
+   * @param {Array<*>} ticks - The candidate tick values.
+   * @param {*} count - The tick count or interval function.
+   * @return {Array<*>} - The filtered tick values.
+   */
+
+
+  function validTicks(scale, ticks, count) {
+    let range = scale.range(),
+        lo = range[0],
+        hi = peek$1(range),
+        cmp = ascending$1;
+
+    if (lo > hi) {
+      range = hi;
+      hi = lo;
+      lo = range;
+      cmp = descending;
+    }
+
+    lo = Math.floor(lo);
+    hi = Math.ceil(hi); // filter ticks to valid values within the range
+    // additionally sort ticks in range order (#2579)
+
+    ticks = ticks.map(v => [v, scale(v)]).filter(_ => lo <= _[1] && _[1] <= hi).sort(cmp).map(_ => _[0]);
+
+    if (count > 0 && ticks.length > 1) {
+      const endpoints = [ticks[0], peek$1(ticks)];
+
+      while (ticks.length > count && ticks.length >= 3) {
+        ticks = ticks.filter((_, i) => !(i % 2));
+      }
+
+      if (ticks.length < 3) {
+        ticks = endpoints;
+      }
+    }
+
+    return ticks;
+  }
+  /**
+   * Generate tick values for the given scale and approximate tick count or
+   * interval value. If the scale has a 'ticks' method, it will be used to
+   * generate the ticks, with the count argument passed as a parameter. If the
+   * scale lacks a 'ticks' method, the full scale domain will be returned.
+   * @param {Scale} scale - The scale for which to generate tick values.
+   * @param {*} [count] - The approximate number of desired ticks.
+   * @return {Array<*>} - The generated tick values.
+   */
+
+
+  function tickValues(scale, count) {
+    return scale.bins ? validTicks(scale, scale.bins) : scale.ticks ? scale.ticks(count) : scale.domain();
+  }
+  /**
+   * Generate a label format function for a scale. If the scale has a
+   * 'tickFormat' method, it will be used to generate the formatter, with the
+   * count and specifier arguments passed as parameters. If the scale lacks a
+   * 'tickFormat' method, the returned formatter performs simple string coercion.
+   * If the input scale is a logarithmic scale and the format specifier does not
+   * indicate a desired decimal precision, a special variable precision formatter
+   * that automatically trims trailing zeroes will be generated.
+   * @param {Scale} scale - The scale for which to generate the label formatter.
+   * @param {*} [count] - The approximate number of desired ticks.
+   * @param {string} [specifier] - The format specifier. Must be a legal d3
+   *   specifier string (see https://github.com/d3/d3-format#formatSpecifier) or
+   *   time multi-format specifier object.
+   * @return {function(*):string} - The generated label formatter.
+   */
+
+
+  function tickFormat(locale, scale, count, specifier, formatType, noSkip) {
+    const type = scale.type;
+    let format = defaultFormatter;
+
+    if (type === Time || formatType === Time) {
+      format = locale.timeFormat(specifier);
+    } else if (type === UTC || formatType === UTC) {
+      format = locale.utcFormat(specifier);
+    } else if (isLogarithmic(type)) {
+      const varfmt = locale.formatFloat(specifier);
+
+      if (noSkip || scale.bins) {
+        format = varfmt;
+      } else {
+        const test = tickLog(scale, count, false);
+
+        format = _ => test(_) ? varfmt(_) : '';
+      }
+    } else if (scale.tickFormat) {
+      // if d3 scale has tickFormat, it must be continuous
+      const d = scale.domain();
+      format = locale.formatSpan(d[0], d[d.length - 1], count, specifier);
+    } else if (specifier) {
+      format = locale.format(specifier);
+    }
+
+    return format;
+  }
+
+  function tickLog(scale, count, values) {
+    const ticks = tickValues(scale, count),
+          base = scale.base(),
+          logb = Math.log(base),
+          k = Math.max(1, base * count / ticks.length); // apply d3-scale's log format filter criteria
+
+    const test = d => {
+      let i = d / Math.pow(base, Math.round(Math.log(d) / logb));
+      if (i * base < base - 0.5) i *= base;
+      return i <= k;
+    };
+
+    return values ? ticks.filter(test) : test;
+  }
+
+  const symbols$1 = {
+    [Quantile]: 'quantiles',
+    [Quantize]: 'thresholds',
+    [Threshold]: 'domain'
+  };
+  const formats = {
+    [Quantile]: 'quantiles',
+    [Quantize]: 'domain'
+  };
+
+  function labelValues(scale, count) {
+    return scale.bins ? binValues(scale.bins) : scale.type === Log ? tickLog(scale, count, true) : symbols$1[scale.type] ? thresholdValues(scale[symbols$1[scale.type]]()) : tickValues(scale, count);
+  }
+
+  function thresholdFormat(locale, scale, specifier) {
+    const _ = scale[formats[scale.type]](),
+          n = _.length;
+
+    let d = n > 1 ? _[1] - _[0] : _[0],
+        i;
+
+    for (i = 1; i < n; ++i) {
+      d = Math.min(d, _[i] - _[i - 1]);
+    } // tickCount = 3 ticks times 10 for increased resolution
+
+
+    return locale.formatSpan(0, d, 3 * 10, specifier);
+  }
+
+  function thresholdValues(thresholds) {
+    const values = [-Infinity].concat(thresholds);
+    values.max = +Infinity;
+    return values;
+  }
+
+  function binValues(bins) {
+    const values = bins.slice(0, -1);
+    values.max = peek$1(bins);
+    return values;
+  }
+
+  const isDiscreteRange = scale => symbols$1[scale.type] || scale.bins;
+
+  function labelFormat(locale, scale, count, type, specifier, formatType, noSkip) {
+    const format = formats[scale.type] && formatType !== Time && formatType !== UTC ? thresholdFormat(locale, scale, specifier) : tickFormat(locale, scale, count, specifier, formatType, noSkip);
+    return type === SymbolLegend && isDiscreteRange(scale) ? formatRange(format) : type === DiscreteLegend ? formatDiscrete(format) : formatPoint(format);
+  }
+
+  const formatRange = format => (value, index, array) => {
+    const limit = get$3(array[index + 1], get$3(array.max, +Infinity)),
+          lo = formatValue$1(value, format),
+          hi = formatValue$1(limit, format);
+    return lo && hi ? lo + ' \u2013 ' + hi : hi ? '< ' + hi : '\u2265 ' + lo;
+  };
+
+  const get$3 = (value, dflt) => value != null ? value : dflt;
+
+  const formatDiscrete = format => (value, index) => index ? format(value) : null;
+
+  const formatPoint = format => value => format(value);
+
+  const formatValue$1 = (value, format) => Number.isFinite(value) ? format(value) : null;
+
+  function labelFraction(scale) {
+    const domain = scale.domain(),
+          count = domain.length - 1;
+    let lo = +domain[0],
+        hi = +peek$1(domain),
+        span = hi - lo;
+
+    if (scale.type === Threshold) {
+      const adjust = count ? span / count : 0.1;
+      lo -= adjust;
+      hi += adjust;
+      span = hi - lo;
+    }
+
+    return value => (value - lo) / span;
+  }
+
+  function format$1(locale, scale, specifier, formatType) {
+    const type = formatType || scale.type; // replace abbreviated time specifiers to improve screen reader experience
+
+    if (isString(specifier) && isTemporal(type)) {
+      specifier = specifier.replace(/%a/g, '%A').replace(/%b/g, '%B');
+    }
+
+    return !specifier && type === Time ? locale.timeFormat('%A, %d %B %Y, %X') : !specifier && type === UTC ? locale.utcFormat('%A, %d %B %Y, %X UTC') : labelFormat(locale, scale, 5, null, specifier, formatType, true);
+  }
+
+  function domainCaption(locale, scale, opt) {
+    opt = opt || {};
+    const max = Math.max(3, opt.maxlen || 7),
+          fmt = format$1(locale, scale, opt.format, opt.formatType); // if scale breaks domain into bins, describe boundaries
+
+    if (isDiscretizing(scale.type)) {
+      const v = labelValues(scale).slice(1).map(fmt),
+            n = v.length;
+      return `${n} boundar${n === 1 ? 'y' : 'ies'}: ${v.join(', ')}`;
+    } // if scale domain is discrete, list values
+    else if (isDiscrete(scale.type)) {
+      const d = scale.domain(),
+            n = d.length,
+            v = n > max ? d.slice(0, max - 2).map(fmt).join(', ') + ', ending with ' + d.slice(-1).map(fmt) : d.map(fmt).join(', ');
+      return `${n} value${n === 1 ? '' : 's'}: ${v}`;
+    } // if scale domain is continuous, describe value range
+    else {
+      const d = scale.domain();
+      return `values from ${fmt(d[0])} to ${fmt(peek$1(d))}`;
+    }
+  }
+
+  let gradient_id = 0;
+
+  function resetSVGGradientId() {
+    gradient_id = 0;
+  }
+
+  const patternPrefix = 'p_';
+
+  function isGradient(value) {
+    return value && value.gradient;
+  }
+
+  function gradientRef(g, defs, base) {
+    const type = g.gradient;
+    let id = g.id,
+        prefix = type === 'radial' ? patternPrefix : ''; // check id, assign default values as needed
+
+    if (!id) {
+      id = g.id = 'gradient_' + gradient_id++;
+
+      if (type === 'radial') {
+        g.x1 = get$2(g.x1, 0.5);
+        g.y1 = get$2(g.y1, 0.5);
+        g.r1 = get$2(g.r1, 0);
+        g.x2 = get$2(g.x2, 0.5);
+        g.y2 = get$2(g.y2, 0.5);
+        g.r2 = get$2(g.r2, 0.5);
+        prefix = patternPrefix;
+      } else {
+        g.x1 = get$2(g.x1, 0);
+        g.y1 = get$2(g.y1, 0);
+        g.x2 = get$2(g.x2, 1);
+        g.y2 = get$2(g.y2, 0);
+      }
+    } // register definition
+
+
+    defs[id] = g; // return url reference
+
+    return 'url(' + (base || '') + '#' + prefix + id + ')';
+  }
+
+  function get$2(val, def) {
+    return val != null ? val : def;
+  }
+
+  function Gradient$1(p0, p1) {
+    var stops = [],
+        gradient;
+    return gradient = {
+      gradient: 'linear',
+      x1: p0 ? p0[0] : 0,
+      y1: p0 ? p0[1] : 0,
+      x2: p1 ? p1[0] : 1,
+      y2: p1 ? p1[1] : 0,
+      stops: stops,
+      stop: function (offset, color) {
+        stops.push({
+          offset: offset,
+          color: color
+        });
+        return gradient;
+      }
+    };
+  }
+
+  const lookup$4 = {
+    'basis': {
+      curve: curveBasis
+    },
+    'basis-closed': {
+      curve: curveBasisClosed
+    },
+    'basis-open': {
+      curve: curveBasisOpen
+    },
+    'bundle': {
+      curve: curveBundle,
+      tension: 'beta',
+      value: 0.85
+    },
+    'cardinal': {
+      curve: curveCardinal,
+      tension: 'tension',
+      value: 0
+    },
+    'cardinal-open': {
+      curve: curveCardinalOpen,
+      tension: 'tension',
+      value: 0
+    },
+    'cardinal-closed': {
+      curve: curveCardinalClosed,
+      tension: 'tension',
+      value: 0
+    },
+    'catmull-rom': {
+      curve: curveCatmullRom,
+      tension: 'alpha',
+      value: 0.5
+    },
+    'catmull-rom-closed': {
+      curve: curveCatmullRomClosed,
+      tension: 'alpha',
+      value: 0.5
+    },
+    'catmull-rom-open': {
+      curve: curveCatmullRomOpen,
+      tension: 'alpha',
+      value: 0.5
+    },
+    'linear': {
+      curve: curveLinear
+    },
+    'linear-closed': {
+      curve: curveLinearClosed
+    },
+    'monotone': {
+      horizontal: monotoneY,
+      vertical: monotoneX
+    },
+    'natural': {
+      curve: curveNatural
+    },
+    'step': {
+      curve: curveStep
+    },
+    'step-after': {
+      curve: stepAfter
+    },
+    'step-before': {
+      curve: stepBefore
+    }
+  };
+
+  function curves(type, orientation, tension) {
+    var entry = has$1(lookup$4, type) && lookup$4[type],
+        curve = null;
+
+    if (entry) {
+      curve = entry.curve || entry[orientation || 'vertical'];
+
+      if (entry.tension && tension != null) {
+        curve = curve[entry.tension](tension);
+      }
+    }
+
+    return curve;
+  } // Path parsing and rendering code adapted from fabric.js -- Thanks!
+
+
+  const cmdlen = {
+    m: 2,
+    l: 2,
+    h: 1,
+    v: 1,
+    c: 6,
+    s: 4,
+    q: 4,
+    t: 2,
+    a: 7
+  },
+        regexp = [/([MLHVCSQTAZmlhvcsqtaz])/g, /###/, /(\.\d+)(\.\d)/g, /(\d)([-+])/g, /\s|,|###/];
+
+  function pathParse(pathstr) {
+    const result = [];
+    let curr, chunks, parsed, param, cmd, len, i, j, n, m; // First, break path into command sequence
+
+    const path = pathstr.slice().replace(regexp[0], '###$1').split(regexp[1]).slice(1); // Next, parse each command in turn
+
+    for (i = 0, n = path.length; i < n; ++i) {
+      curr = path[i];
+      chunks = curr.slice(1).trim().replace(regexp[2], '$1###$2').replace(regexp[3], '$1###$2').split(regexp[4]);
+      cmd = curr.charAt(0);
+      parsed = [cmd];
+
+      for (j = 0, m = chunks.length; j < m; ++j) {
+        if ((param = +chunks[j]) === param) {
+          // not NaN
+          parsed.push(param);
+        }
+      }
+
+      len = cmdlen[cmd.toLowerCase()];
+
+      if (parsed.length - 1 > len) {
+        const m = parsed.length;
+        j = 1;
+        result.push([cmd].concat(parsed.slice(j, j += len))); // handle implicit lineTo (#2803)
+
+        cmd = cmd === 'M' ? 'L' : cmd === 'm' ? 'l' : cmd;
+
+        for (; j < m; j += len) {
+          result.push([cmd].concat(parsed.slice(j, j + len)));
+        }
+      } else {
+        result.push(parsed);
+      }
+    }
+
+    return result;
+  }
+
+  const DegToRad = Math.PI / 180;
+  const Epsilon = 1e-14;
+  const HalfPi = Math.PI / 2;
+  const Tau = Math.PI * 2;
+  const HalfSqrt3 = Math.sqrt(3) / 2;
+  var segmentCache = {};
+  var bezierCache = {};
+  var join$1 = [].join; // Copied from Inkscape svgtopdf, thanks!
+
+  function segments(x, y, rx, ry, large, sweep, rotateX, ox, oy) {
+    const key = join$1.call(arguments);
+
+    if (segmentCache[key]) {
+      return segmentCache[key];
+    }
+
+    const th = rotateX * DegToRad;
+    const sin_th = Math.sin(th);
+    const cos_th = Math.cos(th);
+    rx = Math.abs(rx);
+    ry = Math.abs(ry);
+    const px = cos_th * (ox - x) * 0.5 + sin_th * (oy - y) * 0.5;
+    const py = cos_th * (oy - y) * 0.5 - sin_th * (ox - x) * 0.5;
+    let pl = px * px / (rx * rx) + py * py / (ry * ry);
+
+    if (pl > 1) {
+      pl = Math.sqrt(pl);
+      rx *= pl;
+      ry *= pl;
+    }
+
+    const a00 = cos_th / rx;
+    const a01 = sin_th / rx;
+    const a10 = -sin_th / ry;
+    const a11 = cos_th / ry;
+    const x0 = a00 * ox + a01 * oy;
+    const y0 = a10 * ox + a11 * oy;
+    const x1 = a00 * x + a01 * y;
+    const y1 = a10 * x + a11 * y;
+    const d = (x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0);
+    let sfactor_sq = 1 / d - 0.25;
+    if (sfactor_sq < 0) sfactor_sq = 0;
+    let sfactor = Math.sqrt(sfactor_sq);
+    if (sweep == large) sfactor = -sfactor;
+    const xc = 0.5 * (x0 + x1) - sfactor * (y1 - y0);
+    const yc = 0.5 * (y0 + y1) + sfactor * (x1 - x0);
+    const th0 = Math.atan2(y0 - yc, x0 - xc);
+    const th1 = Math.atan2(y1 - yc, x1 - xc);
+    let th_arc = th1 - th0;
+
+    if (th_arc < 0 && sweep === 1) {
+      th_arc += Tau;
+    } else if (th_arc > 0 && sweep === 0) {
+      th_arc -= Tau;
+    }
+
+    const segs = Math.ceil(Math.abs(th_arc / (HalfPi + 0.001)));
+    const result = [];
+
+    for (let i = 0; i < segs; ++i) {
+      const th2 = th0 + i * th_arc / segs;
+      const th3 = th0 + (i + 1) * th_arc / segs;
+      result[i] = [xc, yc, th2, th3, rx, ry, sin_th, cos_th];
+    }
+
+    return segmentCache[key] = result;
+  }
+
+  function bezier(params) {
+    const key = join$1.call(params);
+
+    if (bezierCache[key]) {
+      return bezierCache[key];
+    }
+
+    var cx = params[0],
+        cy = params[1],
+        th0 = params[2],
+        th1 = params[3],
+        rx = params[4],
+        ry = params[5],
+        sin_th = params[6],
+        cos_th = params[7];
+    const a00 = cos_th * rx;
+    const a01 = -sin_th * ry;
+    const a10 = sin_th * rx;
+    const a11 = cos_th * ry;
+    const cos_th0 = Math.cos(th0);
+    const sin_th0 = Math.sin(th0);
+    const cos_th1 = Math.cos(th1);
+    const sin_th1 = Math.sin(th1);
+    const th_half = 0.5 * (th1 - th0);
+    const sin_th_h2 = Math.sin(th_half * 0.5);
+    const t = 8 / 3 * sin_th_h2 * sin_th_h2 / Math.sin(th_half);
+    const x1 = cx + cos_th0 - t * sin_th0;
+    const y1 = cy + sin_th0 + t * cos_th0;
+    const x3 = cx + cos_th1;
+    const y3 = cy + sin_th1;
+    const x2 = x3 + t * sin_th1;
+    const y2 = y3 - t * cos_th1;
+    return bezierCache[key] = [a00 * x1 + a01 * y1, a10 * x1 + a11 * y1, a00 * x2 + a01 * y2, a10 * x2 + a11 * y2, a00 * x3 + a01 * y3, a10 * x3 + a11 * y3];
+  }
+
+  const temp = ['l', 0, 0, 0, 0, 0, 0, 0];
+
+  function scale$1$1(current, sX, sY) {
+    const c = temp[0] = current[0];
+
+    if (c === 'a' || c === 'A') {
+      temp[1] = sX * current[1];
+      temp[2] = sY * current[2];
+      temp[3] = current[3];
+      temp[4] = current[4];
+      temp[5] = current[5];
+      temp[6] = sX * current[6];
+      temp[7] = sY * current[7];
+    } else if (c === 'h' || c === 'H') {
+      temp[1] = sX * current[1];
+    } else if (c === 'v' || c === 'V') {
+      temp[1] = sY * current[1];
+    } else {
+      for (var i = 1, n = current.length; i < n; ++i) {
+        temp[i] = (i % 2 == 1 ? sX : sY) * current[i];
+      }
+    }
+
+    return temp;
+  }
+
+  function pathRender(context, path, l, t, sX, sY) {
+    var current,
+        // current instruction
+    previous = null,
+        x = 0,
+        // current x
+    y = 0,
+        // current y
+    controlX = 0,
+        // current control point x
+    controlY = 0,
+        // current control point y
+    tempX,
+        tempY,
+        tempControlX,
+        tempControlY;
+    if (l == null) l = 0;
+    if (t == null) t = 0;
+    if (sX == null) sX = 1;
+    if (sY == null) sY = sX;
+    if (context.beginPath) context.beginPath();
+
+    for (var i = 0, len = path.length; i < len; ++i) {
+      current = path[i];
+
+      if (sX !== 1 || sY !== 1) {
+        current = scale$1$1(current, sX, sY);
+      }
+
+      switch (current[0]) {
+        // first letter
+        case 'l':
+          // lineto, relative
+          x += current[1];
+          y += current[2];
+          context.lineTo(x + l, y + t);
+          break;
+
+        case 'L':
+          // lineto, absolute
+          x = current[1];
+          y = current[2];
+          context.lineTo(x + l, y + t);
+          break;
+
+        case 'h':
+          // horizontal lineto, relative
+          x += current[1];
+          context.lineTo(x + l, y + t);
+          break;
+
+        case 'H':
+          // horizontal lineto, absolute
+          x = current[1];
+          context.lineTo(x + l, y + t);
+          break;
+
+        case 'v':
+          // vertical lineto, relative
+          y += current[1];
+          context.lineTo(x + l, y + t);
+          break;
+
+        case 'V':
+          // verical lineto, absolute
+          y = current[1];
+          context.lineTo(x + l, y + t);
+          break;
+
+        case 'm':
+          // moveTo, relative
+          x += current[1];
+          y += current[2];
+          context.moveTo(x + l, y + t);
+          break;
+
+        case 'M':
+          // moveTo, absolute
+          x = current[1];
+          y = current[2];
+          context.moveTo(x + l, y + t);
+          break;
+
+        case 'c':
+          // bezierCurveTo, relative
+          tempX = x + current[5];
+          tempY = y + current[6];
+          controlX = x + current[3];
+          controlY = y + current[4];
+          context.bezierCurveTo(x + current[1] + l, // x1
+          y + current[2] + t, // y1
+          controlX + l, // x2
+          controlY + t, // y2
+          tempX + l, tempY + t);
+          x = tempX;
+          y = tempY;
+          break;
+
+        case 'C':
+          // bezierCurveTo, absolute
+          x = current[5];
+          y = current[6];
+          controlX = current[3];
+          controlY = current[4];
+          context.bezierCurveTo(current[1] + l, current[2] + t, controlX + l, controlY + t, x + l, y + t);
+          break;
+
+        case 's':
+          // shorthand cubic bezierCurveTo, relative
+          // transform to absolute x,y
+          tempX = x + current[3];
+          tempY = y + current[4]; // calculate reflection of previous control points
+
+          controlX = 2 * x - controlX;
+          controlY = 2 * y - controlY;
+          context.bezierCurveTo(controlX + l, controlY + t, x + current[1] + l, y + current[2] + t, tempX + l, tempY + t); // set control point to 2nd one of this command
+          // the first control point is assumed to be the reflection of
+          // the second control point on the previous command relative
+          // to the current point.
+
+          controlX = x + current[1];
+          controlY = y + current[2];
+          x = tempX;
+          y = tempY;
+          break;
+
+        case 'S':
+          // shorthand cubic bezierCurveTo, absolute
+          tempX = current[3];
+          tempY = current[4]; // calculate reflection of previous control points
+
+          controlX = 2 * x - controlX;
+          controlY = 2 * y - controlY;
+          context.bezierCurveTo(controlX + l, controlY + t, current[1] + l, current[2] + t, tempX + l, tempY + t);
+          x = tempX;
+          y = tempY; // set control point to 2nd one of this command
+          // the first control point is assumed to be the reflection of
+          // the second control point on the previous command relative
+          // to the current point.
+
+          controlX = current[1];
+          controlY = current[2];
+          break;
+
+        case 'q':
+          // quadraticCurveTo, relative
+          // transform to absolute x,y
+          tempX = x + current[3];
+          tempY = y + current[4];
+          controlX = x + current[1];
+          controlY = y + current[2];
+          context.quadraticCurveTo(controlX + l, controlY + t, tempX + l, tempY + t);
+          x = tempX;
+          y = tempY;
+          break;
+
+        case 'Q':
+          // quadraticCurveTo, absolute
+          tempX = current[3];
+          tempY = current[4];
+          context.quadraticCurveTo(current[1] + l, current[2] + t, tempX + l, tempY + t);
+          x = tempX;
+          y = tempY;
+          controlX = current[1];
+          controlY = current[2];
+          break;
+
+        case 't':
+          // shorthand quadraticCurveTo, relative
+          // transform to absolute x,y
+          tempX = x + current[1];
+          tempY = y + current[2];
+
+          if (previous[0].match(/[QqTt]/) === null) {
+            // If there is no previous command or if the previous command was not a Q, q, T or t,
+            // assume the control point is coincident with the current point
+            controlX = x;
+            controlY = y;
+          } else if (previous[0] === 't') {
+            // calculate reflection of previous control points for t
+            controlX = 2 * x - tempControlX;
+            controlY = 2 * y - tempControlY;
+          } else if (previous[0] === 'q') {
+            // calculate reflection of previous control points for q
+            controlX = 2 * x - controlX;
+            controlY = 2 * y - controlY;
+          }
+
+          tempControlX = controlX;
+          tempControlY = controlY;
+          context.quadraticCurveTo(controlX + l, controlY + t, tempX + l, tempY + t);
+          x = tempX;
+          y = tempY;
+          controlX = x + current[1];
+          controlY = y + current[2];
+          break;
+
+        case 'T':
+          tempX = current[1];
+          tempY = current[2]; // calculate reflection of previous control points
+
+          controlX = 2 * x - controlX;
+          controlY = 2 * y - controlY;
+          context.quadraticCurveTo(controlX + l, controlY + t, tempX + l, tempY + t);
+          x = tempX;
+          y = tempY;
+          break;
+
+        case 'a':
+          drawArc(context, x + l, y + t, [current[1], current[2], current[3], current[4], current[5], current[6] + x + l, current[7] + y + t]);
+          x += current[6];
+          y += current[7];
+          break;
+
+        case 'A':
+          drawArc(context, x + l, y + t, [current[1], current[2], current[3], current[4], current[5], current[6] + l, current[7] + t]);
+          x = current[6];
+          y = current[7];
+          break;
+
+        case 'z':
+        case 'Z':
+          context.closePath();
+          break;
+      }
+
+      previous = current;
+    }
+  }
+
+  function drawArc(context, x, y, coords) {
+    const seg = segments(coords[5], // end x
+    coords[6], // end y
+    coords[0], // radius x
+    coords[1], // radius y
+    coords[3], // large flag
+    coords[4], // sweep flag
+    coords[2], // rotation
+    x, y);
+
+    for (let i = 0; i < seg.length; ++i) {
+      const bez = bezier(seg[i]);
+      context.bezierCurveTo(bez[0], bez[1], bez[2], bez[3], bez[4], bez[5]);
+    }
+  }
+
+  const Tan30 = 0.5773502691896257;
+  const builtins = {
+    'circle': {
+      draw: function (context, size) {
+        const r = Math.sqrt(size) / 2;
+        context.moveTo(r, 0);
+        context.arc(0, 0, r, 0, Tau);
+      }
+    },
+    'cross': {
+      draw: function (context, size) {
+        var r = Math.sqrt(size) / 2,
+            s = r / 2.5;
+        context.moveTo(-r, -s);
+        context.lineTo(-r, s);
+        context.lineTo(-s, s);
+        context.lineTo(-s, r);
+        context.lineTo(s, r);
+        context.lineTo(s, s);
+        context.lineTo(r, s);
+        context.lineTo(r, -s);
+        context.lineTo(s, -s);
+        context.lineTo(s, -r);
+        context.lineTo(-s, -r);
+        context.lineTo(-s, -s);
+        context.closePath();
+      }
+    },
+    'diamond': {
+      draw: function (context, size) {
+        const r = Math.sqrt(size) / 2;
+        context.moveTo(-r, 0);
+        context.lineTo(0, -r);
+        context.lineTo(r, 0);
+        context.lineTo(0, r);
+        context.closePath();
+      }
+    },
+    'square': {
+      draw: function (context, size) {
+        var w = Math.sqrt(size),
+            x = -w / 2;
+        context.rect(x, x, w, w);
+      }
+    },
+    'arrow': {
+      draw: function (context, size) {
+        var r = Math.sqrt(size) / 2,
+            s = r / 7,
+            t = r / 2.5,
+            v = r / 8;
+        context.moveTo(-s, r);
+        context.lineTo(s, r);
+        context.lineTo(s, -v);
+        context.lineTo(t, -v);
+        context.lineTo(0, -r);
+        context.lineTo(-t, -v);
+        context.lineTo(-s, -v);
+        context.closePath();
+      }
+    },
+    'wedge': {
+      draw: function (context, size) {
+        var r = Math.sqrt(size) / 2,
+            h = HalfSqrt3 * r,
+            o = h - r * Tan30,
+            b = r / 4;
+        context.moveTo(0, -h - o);
+        context.lineTo(-b, h - o);
+        context.lineTo(b, h - o);
+        context.closePath();
+      }
+    },
+    'triangle': {
+      draw: function (context, size) {
+        var r = Math.sqrt(size) / 2,
+            h = HalfSqrt3 * r,
+            o = h - r * Tan30;
+        context.moveTo(0, -h - o);
+        context.lineTo(-r, h - o);
+        context.lineTo(r, h - o);
+        context.closePath();
+      }
+    },
+    'triangle-up': {
+      draw: function (context, size) {
+        var r = Math.sqrt(size) / 2,
+            h = HalfSqrt3 * r;
+        context.moveTo(0, -h);
+        context.lineTo(-r, h);
+        context.lineTo(r, h);
+        context.closePath();
+      }
+    },
+    'triangle-down': {
+      draw: function (context, size) {
+        var r = Math.sqrt(size) / 2,
+            h = HalfSqrt3 * r;
+        context.moveTo(0, h);
+        context.lineTo(-r, -h);
+        context.lineTo(r, -h);
+        context.closePath();
+      }
+    },
+    'triangle-right': {
+      draw: function (context, size) {
+        var r = Math.sqrt(size) / 2,
+            h = HalfSqrt3 * r;
+        context.moveTo(h, 0);
+        context.lineTo(-h, -r);
+        context.lineTo(-h, r);
+        context.closePath();
+      }
+    },
+    'triangle-left': {
+      draw: function (context, size) {
+        var r = Math.sqrt(size) / 2,
+            h = HalfSqrt3 * r;
+        context.moveTo(-h, 0);
+        context.lineTo(h, -r);
+        context.lineTo(h, r);
+        context.closePath();
+      }
+    },
+    'stroke': {
+      draw: function (context, size) {
+        const r = Math.sqrt(size) / 2;
+        context.moveTo(-r, 0);
+        context.lineTo(r, 0);
+      }
+    }
+  };
+
+  function symbols(_) {
+    return has$1(builtins, _) ? builtins[_] : customSymbol(_);
+  }
+
+  var custom = {};
+
+  function customSymbol(path) {
+    if (!has$1(custom, path)) {
+      const parsed = pathParse(path);
+      custom[path] = {
+        draw: function (context, size) {
+          pathRender(context, parsed, 0, 0, Math.sqrt(size) / 2);
+        }
+      };
+    }
+
+    return custom[path];
+  }
+
+  const C = 0.448084975506; // C = 1 - c
+
+  function rectangleX(d) {
+    return d.x;
+  }
+
+  function rectangleY(d) {
+    return d.y;
+  }
+
+  function rectangleWidth(d) {
+    return d.width;
+  }
+
+  function rectangleHeight(d) {
+    return d.height;
+  }
+
+  function number$3(_) {
+    return typeof _ === 'function' ? _ : () => +_;
+  }
+
+  function clamp(value, min, max) {
+    return Math.max(min, Math.min(value, max));
+  }
+
+  function vg_rect() {
+    var x = rectangleX,
+        y = rectangleY,
+        width = rectangleWidth,
+        height = rectangleHeight,
+        crTL = number$3(0),
+        crTR = crTL,
+        crBL = crTL,
+        crBR = crTL,
+        context = null;
+
+    function rectangle(_, x0, y0) {
+      var buffer,
+          x1 = x0 != null ? x0 : +x.call(this, _),
+          y1 = y0 != null ? y0 : +y.call(this, _),
+          w = +width.call(this, _),
+          h = +height.call(this, _),
+          s = Math.min(w, h) / 2,
+          tl = clamp(+crTL.call(this, _), 0, s),
+          tr = clamp(+crTR.call(this, _), 0, s),
+          bl = clamp(+crBL.call(this, _), 0, s),
+          br = clamp(+crBR.call(this, _), 0, s);
+      if (!context) context = buffer = path$3();
+
+      if (tl <= 0 && tr <= 0 && bl <= 0 && br <= 0) {
+        context.rect(x1, y1, w, h);
+      } else {
+        var x2 = x1 + w,
+            y2 = y1 + h;
+        context.moveTo(x1 + tl, y1);
+        context.lineTo(x2 - tr, y1);
+        context.bezierCurveTo(x2 - C * tr, y1, x2, y1 + C * tr, x2, y1 + tr);
+        context.lineTo(x2, y2 - br);
+        context.bezierCurveTo(x2, y2 - C * br, x2 - C * br, y2, x2 - br, y2);
+        context.lineTo(x1 + bl, y2);
+        context.bezierCurveTo(x1 + C * bl, y2, x1, y2 - C * bl, x1, y2 - bl);
+        context.lineTo(x1, y1 + tl);
+        context.bezierCurveTo(x1, y1 + C * tl, x1 + C * tl, y1, x1 + tl, y1);
+        context.closePath();
+      }
+
+      if (buffer) {
+        context = null;
+        return buffer + '' || null;
+      }
+    }
+
+    rectangle.x = function (_) {
+      if (arguments.length) {
+        x = number$3(_);
+        return rectangle;
+      } else {
+        return x;
+      }
+    };
+
+    rectangle.y = function (_) {
+      if (arguments.length) {
+        y = number$3(_);
+        return rectangle;
+      } else {
+        return y;
+      }
+    };
+
+    rectangle.width = function (_) {
+      if (arguments.length) {
+        width = number$3(_);
+        return rectangle;
+      } else {
+        return width;
+      }
+    };
+
+    rectangle.height = function (_) {
+      if (arguments.length) {
+        height = number$3(_);
+        return rectangle;
+      } else {
+        return height;
+      }
+    };
+
+    rectangle.cornerRadius = function (tl, tr, br, bl) {
+      if (arguments.length) {
+        crTL = number$3(tl);
+        crTR = tr != null ? number$3(tr) : crTL;
+        crBR = br != null ? number$3(br) : crTL;
+        crBL = bl != null ? number$3(bl) : crTR;
+        return rectangle;
+      } else {
+        return crTL;
+      }
+    };
+
+    rectangle.context = function (_) {
+      if (arguments.length) {
+        context = _ == null ? null : _;
+        return rectangle;
+      } else {
+        return context;
+      }
+    };
+
+    return rectangle;
+  }
+
+  function vg_trail() {
+    var x,
+        y,
+        size,
+        defined,
+        context = null,
+        ready,
+        x1,
+        y1,
+        r1;
+
+    function point(x2, y2, w2) {
+      const r2 = w2 / 2;
+
+      if (ready) {
+        var ux = y1 - y2,
+            uy = x2 - x1;
+
+        if (ux || uy) {
+          // get normal vector
+          var ud = Math.sqrt(ux * ux + uy * uy),
+              rx = (ux /= ud) * r1,
+              ry = (uy /= ud) * r1,
+              t = Math.atan2(uy, ux); // draw segment
+
+          context.moveTo(x1 - rx, y1 - ry);
+          context.lineTo(x2 - ux * r2, y2 - uy * r2);
+          context.arc(x2, y2, r2, t - Math.PI, t);
+          context.lineTo(x1 + rx, y1 + ry);
+          context.arc(x1, y1, r1, t, t + Math.PI);
+        } else {
+          context.arc(x2, y2, r2, 0, Tau);
+        }
+
+        context.closePath();
+      } else {
+        ready = 1;
+      }
+
+      x1 = x2;
+      y1 = y2;
+      r1 = r2;
+    }
+
+    function trail(data) {
+      var i,
+          n = data.length,
+          d,
+          defined0 = false,
+          buffer;
+      if (context == null) context = buffer = path$3();
+
+      for (i = 0; i <= n; ++i) {
+        if (!(i < n && defined(d = data[i], i, data)) === defined0) {
+          if (defined0 = !defined0) ready = 0;
+        }
+
+        if (defined0) point(+x(d, i, data), +y(d, i, data), +size(d, i, data));
+      }
+
+      if (buffer) {
+        context = null;
+        return buffer + '' || null;
+      }
+    }
+
+    trail.x = function (_) {
+      if (arguments.length) {
+        x = _;
+        return trail;
+      } else {
+        return x;
+      }
+    };
+
+    trail.y = function (_) {
+      if (arguments.length) {
+        y = _;
+        return trail;
+      } else {
+        return y;
+      }
+    };
+
+    trail.size = function (_) {
+      if (arguments.length) {
+        size = _;
+        return trail;
+      } else {
+        return size;
+      }
+    };
+
+    trail.defined = function (_) {
+      if (arguments.length) {
+        defined = _;
+        return trail;
+      } else {
+        return defined;
+      }
+    };
+
+    trail.context = function (_) {
+      if (arguments.length) {
+        if (_ == null) {
+          context = null;
+        } else {
+          context = _;
+        }
+
+        return trail;
+      } else {
+        return context;
+      }
+    };
+
+    return trail;
+  }
+
+  function value$1(a, b) {
+    return a != null ? a : b;
+  }
+
+  const x$2 = item => item.x || 0,
+        y$2 = item => item.y || 0,
+        w = item => item.width || 0,
+        h = item => item.height || 0,
+        xw = item => (item.x || 0) + (item.width || 0),
+        yh = item => (item.y || 0) + (item.height || 0),
+        sa = item => item.startAngle || 0,
+        ea = item => item.endAngle || 0,
+        pa = item => item.padAngle || 0,
+        ir = item => item.innerRadius || 0,
+        or = item => item.outerRadius || 0,
+        cr = item => item.cornerRadius || 0,
+        tl = item => value$1(item.cornerRadiusTopLeft, item.cornerRadius) || 0,
+        tr = item => value$1(item.cornerRadiusTopRight, item.cornerRadius) || 0,
+        br = item => value$1(item.cornerRadiusBottomRight, item.cornerRadius) || 0,
+        bl = item => value$1(item.cornerRadiusBottomLeft, item.cornerRadius) || 0,
+        sz = item => value$1(item.size, 64),
+        ts = item => item.size || 1,
+        def = item => !(item.defined === false),
+        type = item => symbols(item.shape || 'circle');
+
+  const arcShape = arc$2$1().startAngle(sa).endAngle(ea).padAngle(pa).innerRadius(ir).outerRadius(or).cornerRadius(cr),
+        areavShape = area$2$1().x(x$2).y1(y$2).y0(yh).defined(def),
+        areahShape = area$2$1().y(y$2).x1(x$2).x0(xw).defined(def),
+        lineShape = line$2$1().x(x$2).y(y$2).defined(def),
+        rectShape = vg_rect().x(x$2).y(y$2).width(w).height(h).cornerRadius(tl, tr, br, bl),
+        symbolShape = symbol$2().type(type).size(sz),
+        trailShape = vg_trail().x(x$2).y(y$2).defined(def).size(ts);
+
+  function hasCornerRadius(item) {
+    return item.cornerRadius || item.cornerRadiusTopLeft || item.cornerRadiusTopRight || item.cornerRadiusBottomRight || item.cornerRadiusBottomLeft;
+  }
+
+  function arc$1(context, item) {
+    return arcShape.context(context)(item);
+  }
+
+  function area$1(context, items) {
+    const item = items[0],
+          interp = item.interpolate || 'linear';
+    return (item.orient === 'horizontal' ? areahShape : areavShape).curve(curves(interp, item.orient, item.tension)).context(context)(items);
+  }
+
+  function line$1(context, items) {
+    const item = items[0],
+          interp = item.interpolate || 'linear';
+    return lineShape.curve(curves(interp, item.orient, item.tension)).context(context)(items);
+  }
+
+  function rectangle(context, item, x, y) {
+    return rectShape.context(context)(item, x, y);
+  }
+
+  function shape$1(context, item) {
+    return (item.mark.shape || item.shape).context(context)(item);
+  }
+
+  function symbol$1(context, item) {
+    return symbolShape.context(context)(item);
+  }
+
+  function trail$1(context, items) {
+    return trailShape.context(context)(items);
+  }
+
+  var clip_id = 1;
+
+  function resetSVGClipId() {
+    clip_id = 1;
+  }
+
+  function clip$1$1(renderer, item, size) {
+    var clip = item.clip,
+        defs = renderer._defs,
+        id = item.clip_id || (item.clip_id = 'clip' + clip_id++),
+        c = defs.clipping[id] || (defs.clipping[id] = {
+      id: id
+    });
+
+    if (isFunction(clip)) {
+      c.path = clip(null);
+    } else if (hasCornerRadius(size)) {
+      c.path = rectangle(null, size, 0, 0);
+    } else {
+      c.width = size.width || 0;
+      c.height = size.height || 0;
+    }
+
+    return 'url(#' + id + ')';
+  }
+
+  function Bounds(b) {
+    this.clear();
+    if (b) this.union(b);
+  }
+
+  Bounds.prototype = {
+    clone() {
+      return new Bounds(this);
+    },
+
+    clear() {
+      this.x1 = +Number.MAX_VALUE;
+      this.y1 = +Number.MAX_VALUE;
+      this.x2 = -Number.MAX_VALUE;
+      this.y2 = -Number.MAX_VALUE;
+      return this;
+    },
+
+    empty() {
+      return this.x1 === +Number.MAX_VALUE && this.y1 === +Number.MAX_VALUE && this.x2 === -Number.MAX_VALUE && this.y2 === -Number.MAX_VALUE;
+    },
+
+    equals(b) {
+      return this.x1 === b.x1 && this.y1 === b.y1 && this.x2 === b.x2 && this.y2 === b.y2;
+    },
+
+    set(x1, y1, x2, y2) {
+      if (x2 < x1) {
+        this.x2 = x1;
+        this.x1 = x2;
+      } else {
+        this.x1 = x1;
+        this.x2 = x2;
+      }
+
+      if (y2 < y1) {
+        this.y2 = y1;
+        this.y1 = y2;
+      } else {
+        this.y1 = y1;
+        this.y2 = y2;
+      }
+
+      return this;
+    },
+
+    add(x, y) {
+      if (x < this.x1) this.x1 = x;
+      if (y < this.y1) this.y1 = y;
+      if (x > this.x2) this.x2 = x;
+      if (y > this.y2) this.y2 = y;
+      return this;
+    },
+
+    expand(d) {
+      this.x1 -= d;
+      this.y1 -= d;
+      this.x2 += d;
+      this.y2 += d;
+      return this;
+    },
+
+    round() {
+      this.x1 = Math.floor(this.x1);
+      this.y1 = Math.floor(this.y1);
+      this.x2 = Math.ceil(this.x2);
+      this.y2 = Math.ceil(this.y2);
+      return this;
+    },
+
+    scale(s) {
+      this.x1 *= s;
+      this.y1 *= s;
+      this.x2 *= s;
+      this.y2 *= s;
+      return this;
+    },
+
+    translate(dx, dy) {
+      this.x1 += dx;
+      this.x2 += dx;
+      this.y1 += dy;
+      this.y2 += dy;
+      return this;
+    },
+
+    rotate(angle, x, y) {
+      const p = this.rotatedPoints(angle, x, y);
+      return this.clear().add(p[0], p[1]).add(p[2], p[3]).add(p[4], p[5]).add(p[6], p[7]);
+    },
+
+    rotatedPoints(angle, x, y) {
+      var {
+        x1,
+        y1,
+        x2,
+        y2
+      } = this,
+          cos = Math.cos(angle),
+          sin = Math.sin(angle),
+          cx = x - x * cos + y * sin,
+          cy = y - x * sin - y * cos;
+      return [cos * x1 - sin * y1 + cx, sin * x1 + cos * y1 + cy, cos * x1 - sin * y2 + cx, sin * x1 + cos * y2 + cy, cos * x2 - sin * y1 + cx, sin * x2 + cos * y1 + cy, cos * x2 - sin * y2 + cx, sin * x2 + cos * y2 + cy];
+    },
+
+    union(b) {
+      if (b.x1 < this.x1) this.x1 = b.x1;
+      if (b.y1 < this.y1) this.y1 = b.y1;
+      if (b.x2 > this.x2) this.x2 = b.x2;
+      if (b.y2 > this.y2) this.y2 = b.y2;
+      return this;
+    },
+
+    intersect(b) {
+      if (b.x1 > this.x1) this.x1 = b.x1;
+      if (b.y1 > this.y1) this.y1 = b.y1;
+      if (b.x2 < this.x2) this.x2 = b.x2;
+      if (b.y2 < this.y2) this.y2 = b.y2;
+      return this;
+    },
+
+    encloses(b) {
+      return b && this.x1 <= b.x1 && this.x2 >= b.x2 && this.y1 <= b.y1 && this.y2 >= b.y2;
+    },
+
+    alignsWith(b) {
+      return b && (this.x1 == b.x1 || this.x2 == b.x2 || this.y1 == b.y1 || this.y2 == b.y2);
+    },
+
+    intersects(b) {
+      return b && !(this.x2 < b.x1 || this.x1 > b.x2 || this.y2 < b.y1 || this.y1 > b.y2);
+    },
+
+    contains(x, y) {
+      return !(x < this.x1 || x > this.x2 || y < this.y1 || y > this.y2);
+    },
+
+    width() {
+      return this.x2 - this.x1;
+    },
+
+    height() {
+      return this.y2 - this.y1;
+    }
+
+  };
+
+  function Item(mark) {
+    this.mark = mark;
+    this.bounds = this.bounds || new Bounds();
+  }
+
+  function GroupItem(mark) {
+    Item.call(this, mark);
+    this.items = this.items || [];
+  }
+
+  inherits(GroupItem, Item);
+
+  function ResourceLoader(customLoader) {
+    this._pending = 0;
+    this._loader = customLoader || loader();
+  }
+
+  function increment(loader) {
+    loader._pending += 1;
+  }
+
+  function decrement(loader) {
+    loader._pending -= 1;
+  }
+
+  ResourceLoader.prototype = {
+    pending() {
+      return this._pending;
+    },
+
+    sanitizeURL(uri) {
+      const loader = this;
+      increment(loader);
+      return loader._loader.sanitize(uri, {
+        context: 'href'
+      }).then(opt => {
+        decrement(loader);
+        return opt;
+      }).catch(() => {
+        decrement(loader);
+        return null;
+      });
+    },
+
+    loadImage(uri) {
+      const loader = this,
+            Image = domImage();
+      increment(loader);
+      return loader._loader.sanitize(uri, {
+        context: 'image'
+      }).then(opt => {
+        const url = opt.href;
+        if (!url || !Image) throw {
+          url: url
+        };
+        const img = new Image(); // set crossOrigin only if cors is defined; empty string sets anonymous mode
+        // https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement/crossOrigin
+
+        const cors = has$1(opt, 'crossOrigin') ? opt.crossOrigin : 'anonymous';
+        if (cors != null) img.crossOrigin = cors; // attempt to load image resource
+
+        img.onload = () => decrement(loader);
+
+        img.onerror = () => decrement(loader);
+
+        img.src = url;
+        return img;
+      }).catch(e => {
+        decrement(loader);
+        return {
+          complete: false,
+          width: 0,
+          height: 0,
+          src: e && e.url || ''
+        };
+      });
+    },
+
+    ready() {
+      const loader = this;
+      return new Promise(accept => {
+        function poll(value) {
+          if (!loader.pending()) accept(value);else setTimeout(() => {
+            poll(true);
+          }, 10);
+        }
+
+        poll(false);
+      });
+    }
+
+  };
+
+  function boundStroke(bounds, item, miter) {
+    if (item.stroke && item.opacity !== 0 && item.strokeOpacity !== 0) {
+      const sw = item.strokeWidth != null ? +item.strokeWidth : 1;
+      bounds.expand(sw + (miter ? miterAdjustment(item, sw) : 0));
+    }
+
+    return bounds;
+  }
+
+  function miterAdjustment(item, strokeWidth) {
+    // TODO: more sophisticated adjustment? Or miter support in boundContext?
+    return item.strokeJoin && item.strokeJoin !== 'miter' ? 0 : strokeWidth;
+  }
+
+  const circleThreshold = Tau - 1e-8;
+  let bounds, lx, ly, rot, ma, mb, mc, md;
+
+  const add$1 = (x, y) => bounds.add(x, y);
+
+  const addL = (x, y) => add$1(lx = x, ly = y);
+
+  const addX = x => add$1(x, bounds.y1);
+
+  const addY = y => add$1(bounds.x1, y);
+
+  const px = (x, y) => ma * x + mc * y;
+
+  const py = (x, y) => mb * x + md * y;
+
+  const addp = (x, y) => add$1(px(x, y), py(x, y));
+
+  const addpL = (x, y) => addL(px(x, y), py(x, y));
+
+  function boundContext(_, deg) {
+    bounds = _;
+
+    if (deg) {
+      rot = deg * DegToRad;
+      ma = md = Math.cos(rot);
+      mb = Math.sin(rot);
+      mc = -mb;
+    } else {
+      ma = md = 1;
+      rot = mb = mc = 0;
+    }
+
+    return context$1;
+  }
+
+  const context$1 = {
+    beginPath() {},
+
+    closePath() {},
+
+    moveTo: addpL,
+    lineTo: addpL,
+
+    rect(x, y, w, h) {
+      if (rot) {
+        addp(x + w, y);
+        addp(x + w, y + h);
+        addp(x, y + h);
+        addpL(x, y);
+      } else {
+        add$1(x + w, y + h);
+        addL(x, y);
+      }
+    },
+
+    quadraticCurveTo(x1, y1, x2, y2) {
+      const px1 = px(x1, y1),
+            py1 = py(x1, y1),
+            px2 = px(x2, y2),
+            py2 = py(x2, y2);
+      quadExtrema(lx, px1, px2, addX);
+      quadExtrema(ly, py1, py2, addY);
+      addL(px2, py2);
+    },
+
+    bezierCurveTo(x1, y1, x2, y2, x3, y3) {
+      const px1 = px(x1, y1),
+            py1 = py(x1, y1),
+            px2 = px(x2, y2),
+            py2 = py(x2, y2),
+            px3 = px(x3, y3),
+            py3 = py(x3, y3);
+      cubicExtrema(lx, px1, px2, px3, addX);
+      cubicExtrema(ly, py1, py2, py3, addY);
+      addL(px3, py3);
+    },
+
+    arc(cx, cy, r, sa, ea, ccw) {
+      sa += rot;
+      ea += rot; // store last point on path
+
+      lx = r * Math.cos(ea) + cx;
+      ly = r * Math.sin(ea) + cy;
+
+      if (Math.abs(ea - sa) > circleThreshold) {
+        // treat as full circle
+        add$1(cx - r, cy - r);
+        add$1(cx + r, cy + r);
+      } else {
+        const update = a => add$1(r * Math.cos(a) + cx, r * Math.sin(a) + cy);
+
+        let s, i; // sample end points
+
+        update(sa);
+        update(ea); // sample interior points aligned with 90 degrees
+
+        if (ea !== sa) {
+          sa = sa % Tau;
+          if (sa < 0) sa += Tau;
+          ea = ea % Tau;
+          if (ea < 0) ea += Tau;
+
+          if (ea < sa) {
+            ccw = !ccw; // flip direction
+
+            s = sa;
+            sa = ea;
+            ea = s; // swap end-points
+          }
+
+          if (ccw) {
+            ea -= Tau;
+            s = sa - sa % HalfPi;
+
+            for (i = 0; i < 4 && s > ea; ++i, s -= HalfPi) update(s);
+          } else {
+            s = sa - sa % HalfPi + HalfPi;
+
+            for (i = 0; i < 4 && s < ea; ++i, s = s + HalfPi) update(s);
+          }
+        }
+      }
+    }
+
+  };
+
+  function quadExtrema(x0, x1, x2, cb) {
+    const t = (x0 - x1) / (x0 + x2 - 2 * x1);
+    if (0 < t && t < 1) cb(x0 + (x1 - x0) * t);
+  }
+
+  function cubicExtrema(x0, x1, x2, x3, cb) {
+    const a = x3 - x0 + 3 * x1 - 3 * x2,
+          b = x0 + x2 - 2 * x1,
+          c = x0 - x1;
+    let t0 = 0,
+        t1 = 0,
+        r; // solve for parameter t
+
+    if (Math.abs(a) > Epsilon) {
+      // quadratic equation
+      r = b * b + c * a;
+
+      if (r >= 0) {
+        r = Math.sqrt(r);
+        t0 = (-b + r) / a;
+        t1 = (-b - r) / a;
+      }
+    } else {
+      // linear equation
+      t0 = 0.5 * c / b;
+    } // calculate position
+
+
+    if (0 < t0 && t0 < 1) cb(cubic(t0, x0, x1, x2, x3));
+    if (0 < t1 && t1 < 1) cb(cubic(t1, x0, x1, x2, x3));
+  }
+
+  function cubic(t, x0, x1, x2, x3) {
+    const s = 1 - t,
+          s2 = s * s,
+          t2 = t * t;
+    return s2 * s * x0 + 3 * s2 * t * x1 + 3 * s * t2 * x2 + t2 * t * x3;
+  }
+
+  var context$2 = (context$2 = domCanvas(1, 1)) ? context$2.getContext('2d') : null;
+  const b = new Bounds();
+
+  function intersectPath(draw) {
+    return function (item, brush) {
+      // rely on (inaccurate) bounds intersection if no context
+      if (!context$2) return true; // add path to offscreen graphics context
+
+      draw(context$2, item); // get bounds intersection region
+
+      b.clear().union(item.bounds).intersect(brush).round();
+      const {
+        x1,
+        y1,
+        x2,
+        y2
+      } = b; // iterate over intersection region
+      // perform fine grained inclusion test
+
+      for (let y = y1; y <= y2; ++y) {
+        for (let x = x1; x <= x2; ++x) {
+          if (context$2.isPointInPath(x, y)) {
+            return true;
+          }
+        }
+      } // false if no hits in intersection region
+
+
+      return false;
+    };
+  }
+
+  function intersectPoint(item, box) {
+    return box.contains(item.x || 0, item.y || 0);
+  }
+
+  function intersectRect(item, box) {
+    const x = item.x || 0,
+          y = item.y || 0,
+          w = item.width || 0,
+          h = item.height || 0;
+    return box.intersects(b.set(x, y, x + w, y + h));
+  }
+
+  function intersectRule(item, box) {
+    const x = item.x || 0,
+          y = item.y || 0,
+          x2 = item.x2 != null ? item.x2 : x,
+          y2 = item.y2 != null ? item.y2 : y;
+    return intersectBoxLine(box, x, y, x2, y2);
+  }
+
+  function intersectBoxLine(box, x, y, u, v) {
+    const {
+      x1,
+      y1,
+      x2,
+      y2
+    } = box,
+          dx = u - x,
+          dy = v - y;
+    let t0 = 0,
+        t1 = 1,
+        p,
+        q,
+        r,
+        e;
+
+    for (e = 0; e < 4; ++e) {
+      if (e === 0) {
+        p = -dx;
+        q = -(x1 - x);
+      }
+
+      if (e === 1) {
+        p = dx;
+        q = x2 - x;
+      }
+
+      if (e === 2) {
+        p = -dy;
+        q = -(y1 - y);
+      }
+
+      if (e === 3) {
+        p = dy;
+        q = y2 - y;
+      }
+
+      if (Math.abs(p) < 1e-10 && q < 0) return false;
+      r = q / p;
+
+      if (p < 0) {
+        if (r > t1) return false;else if (r > t0) t0 = r;
+      } else if (p > 0) {
+        if (r < t0) return false;else if (r < t1) t1 = r;
+      }
+    }
+
+    return true;
+  }
+
+  function blend(context, item) {
+    context.globalCompositeOperation = item.blend || 'source-over';
+  }
+
+  function value$2(value, dflt) {
+    return value == null ? dflt : value;
+  }
+
+  function addStops(gradient, stops) {
+    const n = stops.length;
+
+    for (let i = 0; i < n; ++i) {
+      gradient.addColorStop(stops[i].offset, stops[i].color);
+    }
+
+    return gradient;
+  }
+
+  function gradient$1(context, spec, bounds) {
+    const w = bounds.width(),
+          h = bounds.height();
+    let gradient;
+
+    if (spec.gradient === 'radial') {
+      gradient = context.createRadialGradient(bounds.x1 + value$2(spec.x1, 0.5) * w, bounds.y1 + value$2(spec.y1, 0.5) * h, Math.max(w, h) * value$2(spec.r1, 0), bounds.x1 + value$2(spec.x2, 0.5) * w, bounds.y1 + value$2(spec.y2, 0.5) * h, Math.max(w, h) * value$2(spec.r2, 0.5));
+    } else {
+      // linear gradient
+      const x1 = value$2(spec.x1, 0),
+            y1 = value$2(spec.y1, 0),
+            x2 = value$2(spec.x2, 1),
+            y2 = value$2(spec.y2, 0);
+
+      if (x1 === x2 || y1 === y2 || w === h) {
+        // axis aligned: use normal gradient
+        gradient = context.createLinearGradient(bounds.x1 + x1 * w, bounds.y1 + y1 * h, bounds.x1 + x2 * w, bounds.y1 + y2 * h);
+      } else {
+        // not axis aligned: render gradient into a pattern (#2365)
+        // this allows us to use normalized bounding box coordinates
+        const image = domCanvas(Math.ceil(w), Math.ceil(h)),
+              ictx = image.getContext('2d');
+        ictx.scale(w, h);
+        ictx.fillStyle = addStops(ictx.createLinearGradient(x1, y1, x2, y2), spec.stops);
+        ictx.fillRect(0, 0, w, h);
+        return context.createPattern(image, 'no-repeat');
+      }
+    }
+
+    return addStops(gradient, spec.stops);
+  }
+
+  function color$1(context, item, value) {
+    return isGradient(value) ? gradient$1(context, value, item.bounds) : value;
+  }
+
+  function fill(context, item, opacity) {
+    opacity *= item.fillOpacity == null ? 1 : item.fillOpacity;
+
+    if (opacity > 0) {
+      context.globalAlpha = opacity;
+      context.fillStyle = color$1(context, item, item.fill);
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  var Empty = [];
+
+  function stroke(context, item, opacity) {
+    var lw = (lw = item.strokeWidth) != null ? lw : 1;
+    if (lw <= 0) return false;
+    opacity *= item.strokeOpacity == null ? 1 : item.strokeOpacity;
+
+    if (opacity > 0) {
+      context.globalAlpha = opacity;
+      context.strokeStyle = color$1(context, item, item.stroke);
+      context.lineWidth = lw;
+      context.lineCap = item.strokeCap || 'butt';
+      context.lineJoin = item.strokeJoin || 'miter';
+      context.miterLimit = item.strokeMiterLimit || 10;
+
+      if (context.setLineDash) {
+        context.setLineDash(item.strokeDash || Empty);
+        context.lineDashOffset = item.strokeDashOffset || 0;
+      }
+
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  function compare(a, b) {
+    return a.zindex - b.zindex || a.index - b.index;
+  }
+
+  function zorder(scene) {
+    if (!scene.zdirty) return scene.zitems;
+    var items = scene.items,
+        output = [],
+        item,
+        i,
+        n;
+
+    for (i = 0, n = items.length; i < n; ++i) {
+      item = items[i];
+      item.index = i;
+      if (item.zindex) output.push(item);
+    }
+
+    scene.zdirty = false;
+    return scene.zitems = output.sort(compare);
+  }
+
+  function visit(scene, visitor) {
+    var items = scene.items,
+        i,
+        n;
+    if (!items || !items.length) return;
+    const zitems = zorder(scene);
+
+    if (zitems && zitems.length) {
+      for (i = 0, n = items.length; i < n; ++i) {
+        if (!items[i].zindex) visitor(items[i]);
+      }
+
+      items = zitems;
+    }
+
+    for (i = 0, n = items.length; i < n; ++i) {
+      visitor(items[i]);
+    }
+  }
+
+  function pickVisit(scene, visitor) {
+    var items = scene.items,
+        hit,
+        i;
+    if (!items || !items.length) return null;
+    const zitems = zorder(scene);
+    if (zitems && zitems.length) items = zitems;
+
+    for (i = items.length; --i >= 0;) {
+      if (hit = visitor(items[i])) return hit;
+    }
+
+    if (items === zitems) {
+      for (items = scene.items, i = items.length; --i >= 0;) {
+        if (!items[i].zindex) {
+          if (hit = visitor(items[i])) return hit;
+        }
+      }
+    }
+
+    return null;
+  }
+
+  function drawAll(path) {
+    return function (context, scene, bounds) {
+      visit(scene, item => {
+        if (!bounds || bounds.intersects(item.bounds)) {
+          drawPath(path, context, item, item);
+        }
+      });
+    };
+  }
+
+  function drawOne(path) {
+    return function (context, scene, bounds) {
+      if (scene.items.length && (!bounds || bounds.intersects(scene.bounds))) {
+        drawPath(path, context, scene.items[0], scene.items);
+      }
+    };
+  }
+
+  function drawPath(path, context, item, items) {
+    var opacity = item.opacity == null ? 1 : item.opacity;
+    if (opacity === 0) return;
+    if (path(context, items)) return;
+    blend(context, item);
+
+    if (item.fill && fill(context, item, opacity)) {
+      context.fill();
+    }
+
+    if (item.stroke && stroke(context, item, opacity)) {
+      context.stroke();
+    }
+  }
+
+  function pick$1(test) {
+    test = test || truthy;
+    return function (context, scene, x, y, gx, gy) {
+      x *= context.pixelRatio;
+      y *= context.pixelRatio;
+      return pickVisit(scene, item => {
+        const b = item.bounds; // first hit test against bounding box
+
+        if (b && !b.contains(gx, gy) || !b) return; // if in bounding box, perform more careful test
+
+        if (test(context, item, x, y, gx, gy)) return item;
+      });
+    };
+  }
+
+  function hitPath(path, filled) {
+    return function (context, o, x, y) {
+      var item = Array.isArray(o) ? o[0] : o,
+          fill = filled == null ? item.fill : filled,
+          stroke = item.stroke && context.isPointInStroke,
+          lw,
+          lc;
+
+      if (stroke) {
+        lw = item.strokeWidth;
+        lc = item.strokeCap;
+        context.lineWidth = lw != null ? lw : 1;
+        context.lineCap = lc != null ? lc : 'butt';
+      }
+
+      return path(context, o) ? false : fill && context.isPointInPath(x, y) || stroke && context.isPointInStroke(x, y);
+    };
+  }
+
+  function pickPath(path) {
+    return pick$1(hitPath(path));
+  }
+
+  function translate$1(x, y) {
+    return 'translate(' + x + ',' + y + ')';
+  }
+
+  function rotate(a) {
+    return 'rotate(' + a + ')';
+  }
+
+  function scale$3(scaleX, scaleY) {
+    return 'scale(' + scaleX + ',' + scaleY + ')';
+  }
+
+  function translateItem(item) {
+    return translate$1(item.x || 0, item.y || 0);
+  }
+
+  function rotateItem(item) {
+    return translate$1(item.x || 0, item.y || 0) + (item.angle ? ' ' + rotate(item.angle) : '');
+  }
+
+  function transformItem(item) {
+    return translate$1(item.x || 0, item.y || 0) + (item.angle ? ' ' + rotate(item.angle) : '') + (item.scaleX || item.scaleY ? ' ' + scale$3(item.scaleX || 1, item.scaleY || 1) : '');
+  }
+
+  function markItemPath(type, shape, isect) {
+    function attr(emit, item) {
+      emit('transform', rotateItem(item));
+      emit('d', shape(null, item));
+    }
+
+    function bound(bounds, item) {
+      shape(boundContext(bounds, item.angle), item);
+      return boundStroke(bounds, item).translate(item.x || 0, item.y || 0);
+    }
+
+    function draw(context, item) {
+      var x = item.x || 0,
+          y = item.y || 0,
+          a = item.angle || 0;
+      context.translate(x, y);
+      if (a) context.rotate(a *= DegToRad);
+      context.beginPath();
+      shape(context, item);
+      if (a) context.rotate(-a);
+      context.translate(-x, -y);
+    }
+
+    return {
+      type: type,
+      tag: 'path',
+      nested: false,
+      attr: attr,
+      bound: bound,
+      draw: drawAll(draw),
+      pick: pickPath(draw),
+      isect: isect || intersectPath(draw)
+    };
+  }
+
+  var arc$2 = markItemPath('arc', arc$1);
+
+  function pickArea(a, p) {
+    var v = a[0].orient === 'horizontal' ? p[1] : p[0],
+        z = a[0].orient === 'horizontal' ? 'y' : 'x',
+        i = a.length,
+        min = +Infinity,
+        hit,
+        d;
+
+    while (--i >= 0) {
+      if (a[i].defined === false) continue;
+      d = Math.abs(a[i][z] - v);
+
+      if (d < min) {
+        min = d;
+        hit = a[i];
+      }
+    }
+
+    return hit;
+  }
+
+  function pickLine(a, p) {
+    var t = Math.pow(a[0].strokeWidth || 1, 2),
+        i = a.length,
+        dx,
+        dy,
+        dd;
+
+    while (--i >= 0) {
+      if (a[i].defined === false) continue;
+      dx = a[i].x - p[0];
+      dy = a[i].y - p[1];
+      dd = dx * dx + dy * dy;
+      if (dd < t) return a[i];
+    }
+
+    return null;
+  }
+
+  function pickTrail(a, p) {
+    var i = a.length,
+        dx,
+        dy,
+        dd;
+
+    while (--i >= 0) {
+      if (a[i].defined === false) continue;
+      dx = a[i].x - p[0];
+      dy = a[i].y - p[1];
+      dd = dx * dx + dy * dy;
+      dx = a[i].size || 1;
+      if (dd < dx * dx) return a[i];
+    }
+
+    return null;
+  }
+
+  function markMultiItemPath(type, shape, tip) {
+    function attr(emit, item) {
+      var items = item.mark.items;
+      if (items.length) emit('d', shape(null, items));
+    }
+
+    function bound(bounds, mark) {
+      var items = mark.items;
+
+      if (items.length === 0) {
+        return bounds;
+      } else {
+        shape(boundContext(bounds), items);
+        return boundStroke(bounds, items[0]);
+      }
+    }
+
+    function draw(context, items) {
+      context.beginPath();
+      shape(context, items);
+    }
+
+    const hit = hitPath(draw);
+
+    function pick(context, scene, x, y, gx, gy) {
+      var items = scene.items,
+          b = scene.bounds;
+
+      if (!items || !items.length || b && !b.contains(gx, gy)) {
+        return null;
+      }
+
+      x *= context.pixelRatio;
+      y *= context.pixelRatio;
+      return hit(context, items, x, y) ? items[0] : null;
+    }
+
+    return {
+      type: type,
+      tag: 'path',
+      nested: true,
+      attr: attr,
+      bound: bound,
+      draw: drawOne(draw),
+      pick: pick,
+      isect: intersectPoint,
+      tip: tip
+    };
+  }
+
+  var area$2 = markMultiItemPath('area', area$1, pickArea);
+
+  function clip$2(context, scene) {
+    var clip = scene.clip;
+    context.save();
+
+    if (isFunction(clip)) {
+      context.beginPath();
+      clip(context);
+      context.clip();
+    } else {
+      clipGroup(context, scene.group);
+    }
+  }
+
+  function clipGroup(context, group) {
+    context.beginPath();
+    hasCornerRadius(group) ? rectangle(context, group, 0, 0) : context.rect(0, 0, group.width || 0, group.height || 0);
+    context.clip();
+  }
+
+  function offset$1(item) {
+    const sw = value$2(item.strokeWidth, 1);
+    return item.strokeOffset != null ? item.strokeOffset : item.stroke && sw > 0.5 && sw < 1.5 ? 0.5 - Math.abs(sw - 1) : 0;
+  }
+
+  function attr$5(emit, item) {
+    emit('transform', translateItem(item));
+  }
+
+  function emitRectangle(emit, item) {
+    const off = offset$1(item);
+    emit('d', rectangle(null, item, off, off));
+  }
+
+  function background$1(emit, item) {
+    emit('class', 'background');
+    emit('aria-hidden', true);
+    emitRectangle(emit, item);
+  }
+
+  function foreground(emit, item) {
+    emit('class', 'foreground');
+    emit('aria-hidden', true);
+
+    if (item.strokeForeground) {
+      emitRectangle(emit, item);
+    } else {
+      emit('d', '');
+    }
+  }
+
+  function content(emit, item, renderer) {
+    const url = item.clip ? clip$1$1(renderer, item, item) : null;
+    emit('clip-path', url);
+  }
+
+  function bound$5(bounds, group) {
+    if (!group.clip && group.items) {
+      const items = group.items,
+            m = items.length;
+
+      for (let j = 0; j < m; ++j) {
+        bounds.union(items[j].bounds);
+      }
+    }
+
+    if ((group.clip || group.width || group.height) && !group.noBound) {
+      bounds.add(0, 0).add(group.width || 0, group.height || 0);
+    }
+
+    boundStroke(bounds, group);
+    return bounds.translate(group.x || 0, group.y || 0);
+  }
+
+  function rectanglePath(context, group, x, y) {
+    const off = offset$1(group);
+    context.beginPath();
+    rectangle(context, group, (x || 0) + off, (y || 0) + off);
+  }
+
+  const hitBackground = hitPath(rectanglePath);
+  const hitForeground = hitPath(rectanglePath, false);
+  const hitCorner = hitPath(rectanglePath, true);
+
+  function draw$4(context, scene, bounds) {
+    visit(scene, group => {
+      const gx = group.x || 0,
+            gy = group.y || 0,
+            fore = group.strokeForeground,
+            opacity = group.opacity == null ? 1 : group.opacity; // draw group background
+
+      if ((group.stroke || group.fill) && opacity) {
+        rectanglePath(context, group, gx, gy);
+        blend(context, group);
+
+        if (group.fill && fill(context, group, opacity)) {
+          context.fill();
+        }
+
+        if (group.stroke && !fore && stroke(context, group, opacity)) {
+          context.stroke();
+        }
+      } // setup graphics context, set clip and bounds
+
+
+      context.save();
+      context.translate(gx, gy);
+      if (group.clip) clipGroup(context, group);
+      if (bounds) bounds.translate(-gx, -gy); // draw group contents
+
+      visit(group, item => {
+        this.draw(context, item, bounds);
+      }); // restore graphics context
+
+      if (bounds) bounds.translate(gx, gy);
+      context.restore(); // draw group foreground
+
+      if (fore && group.stroke && opacity) {
+        rectanglePath(context, group, gx, gy);
+        blend(context, group);
+
+        if (stroke(context, group, opacity)) {
+          context.stroke();
+        }
+      }
+    });
+  }
+
+  function pick(context, scene, x, y, gx, gy) {
+    if (scene.bounds && !scene.bounds.contains(gx, gy) || !scene.items) {
+      return null;
+    }
+
+    const cx = x * context.pixelRatio,
+          cy = y * context.pixelRatio;
+    return pickVisit(scene, group => {
+      let hit, dx, dy; // first hit test bounding box
+
+      const b = group.bounds;
+      if (b && !b.contains(gx, gy)) return; // passed bounds check, test rectangular clip
+
+      dx = group.x || 0;
+      dy = group.y || 0;
+      const dw = dx + (group.width || 0),
+            dh = dy + (group.height || 0),
+            c = group.clip;
+      if (c && (gx < dx || gx > dw || gy < dy || gy > dh)) return; // adjust coordinate system
+
+      context.save();
+      context.translate(dx, dy);
+      dx = gx - dx;
+      dy = gy - dy; // test background for rounded corner clip
+
+      if (c && hasCornerRadius(group) && !hitCorner(context, group, cx, cy)) {
+        context.restore();
+        return null;
+      }
+
+      const fore = group.strokeForeground,
+            ix = scene.interactive !== false; // hit test against group foreground
+
+      if (ix && fore && group.stroke && hitForeground(context, group, cx, cy)) {
+        context.restore();
+        return group;
+      } // hit test against contained marks
+
+
+      hit = pickVisit(group, mark => pickMark(mark, dx, dy) ? this.pick(mark, x, y, dx, dy) : null); // hit test against group background
+
+      if (!hit && ix && (group.fill || !fore && group.stroke) && hitBackground(context, group, cx, cy)) {
+        hit = group;
+      } // restore state and return
+
+
+      context.restore();
+      return hit || null;
+    });
+  }
+
+  function pickMark(mark, x, y) {
+    return (mark.interactive !== false || mark.marktype === 'group') && mark.bounds && mark.bounds.contains(x, y);
+  }
+
+  var group = {
+    type: 'group',
+    tag: 'g',
+    nested: false,
+    attr: attr$5,
+    bound: bound$5,
+    draw: draw$4,
+    pick: pick,
+    isect: intersectRect,
+    content: content,
+    background: background$1,
+    foreground: foreground
+  };
+  var metadata = {
+    'xmlns': 'http://www.w3.org/2000/svg',
+    'xmlns:xlink': 'http://www.w3.org/1999/xlink',
+    'version': '1.1'
+  };
+
+  function getImage(item, renderer) {
+    var image = item.image;
+
+    if (!image || item.url && item.url !== image.url) {
+      image = {
+        complete: false,
+        width: 0,
+        height: 0
+      };
+      renderer.loadImage(item.url).then(image => {
+        item.image = image;
+        item.image.url = item.url;
+      });
+    }
+
+    return image;
+  }
+
+  function imageWidth(item, image) {
+    return item.width != null ? item.width : !image || !image.width ? 0 : item.aspect !== false && item.height ? item.height * image.width / image.height : image.width;
+  }
+
+  function imageHeight(item, image) {
+    return item.height != null ? item.height : !image || !image.height ? 0 : item.aspect !== false && item.width ? item.width * image.height / image.width : image.height;
+  }
+
+  function imageXOffset(align, w) {
+    return align === 'center' ? w / 2 : align === 'right' ? w : 0;
+  }
+
+  function imageYOffset(baseline, h) {
+    return baseline === 'middle' ? h / 2 : baseline === 'bottom' ? h : 0;
+  }
+
+  function attr$4(emit, item, renderer) {
+    const img = getImage(item, renderer),
+          w = imageWidth(item, img),
+          h = imageHeight(item, img),
+          x = (item.x || 0) - imageXOffset(item.align, w),
+          y = (item.y || 0) - imageYOffset(item.baseline, h),
+          i = !img.src && img.toDataURL ? img.toDataURL() : img.src || '';
+    emit('href', i, metadata['xmlns:xlink'], 'xlink:href');
+    emit('transform', translate$1(x, y));
+    emit('width', w);
+    emit('height', h);
+    emit('preserveAspectRatio', item.aspect === false ? 'none' : 'xMidYMid');
+  }
+
+  function bound$4(bounds, item) {
+    const img = item.image,
+          w = imageWidth(item, img),
+          h = imageHeight(item, img),
+          x = (item.x || 0) - imageXOffset(item.align, w),
+          y = (item.y || 0) - imageYOffset(item.baseline, h);
+    return bounds.set(x, y, x + w, y + h);
+  }
+
+  function draw$3(context, scene, bounds) {
+    visit(scene, item => {
+      if (bounds && !bounds.intersects(item.bounds)) return; // bounds check
+
+      const img = getImage(item, this);
+      let w = imageWidth(item, img);
+      let h = imageHeight(item, img);
+      if (w === 0 || h === 0) return; // early exit
+
+      let x = (item.x || 0) - imageXOffset(item.align, w),
+          y = (item.y || 0) - imageYOffset(item.baseline, h),
+          opacity,
+          ar0,
+          ar1,
+          t;
+
+      if (item.aspect !== false) {
+        ar0 = img.width / img.height;
+        ar1 = item.width / item.height;
+
+        if (ar0 === ar0 && ar1 === ar1 && ar0 !== ar1) {
+          if (ar1 < ar0) {
+            t = w / ar0;
+            y += (h - t) / 2;
+            h = t;
+          } else {
+            t = h * ar0;
+            x += (w - t) / 2;
+            w = t;
+          }
+        }
+      }
+
+      if (img.complete || img.toDataURL) {
+        blend(context, item);
+        context.globalAlpha = (opacity = item.opacity) != null ? opacity : 1;
+        context.imageSmoothingEnabled = item.smooth !== false;
+        context.drawImage(img, x, y, w, h);
+      }
+    });
+  }
+
+  var image = {
+    type: 'image',
+    tag: 'image',
+    nested: false,
+    attr: attr$4,
+    bound: bound$4,
+    draw: draw$3,
+    pick: pick$1(),
+    isect: truthy,
+    // bounds check is sufficient
+    get: getImage,
+    xOffset: imageXOffset,
+    yOffset: imageYOffset
+  };
+  var line$2 = markMultiItemPath('line', line$1, pickLine);
+
+  function attr$3(emit, item) {
+    var sx = item.scaleX || 1,
+        sy = item.scaleY || 1;
+
+    if (sx !== 1 || sy !== 1) {
+      emit('vector-effect', 'non-scaling-stroke');
+    }
+
+    emit('transform', transformItem(item));
+    emit('d', item.path);
+  }
+
+  function path$1(context, item) {
+    var path = item.path;
+    if (path == null) return true;
+    var x = item.x || 0,
+        y = item.y || 0,
+        sx = item.scaleX || 1,
+        sy = item.scaleY || 1,
+        a = (item.angle || 0) * DegToRad,
+        cache = item.pathCache;
+
+    if (!cache || cache.path !== path) {
+      (item.pathCache = cache = pathParse(path)).path = path;
+    }
+
+    if (a && context.rotate && context.translate) {
+      context.translate(x, y);
+      context.rotate(a);
+      pathRender(context, cache, 0, 0, sx, sy);
+      context.rotate(-a);
+      context.translate(-x, -y);
+    } else {
+      pathRender(context, cache, x, y, sx, sy);
+    }
+  }
+
+  function bound$3(bounds, item) {
+    return path$1(boundContext(bounds, item.angle), item) ? bounds.set(0, 0, 0, 0) : boundStroke(bounds, item, true);
+  }
+
+  var path$2 = {
+    type: 'path',
+    tag: 'path',
+    nested: false,
+    attr: attr$3,
+    bound: bound$3,
+    draw: drawAll(path$1),
+    pick: pickPath(path$1),
+    isect: intersectPath(path$1)
+  };
+
+  function attr$2(emit, item) {
+    emit('d', rectangle(null, item));
+  }
+
+  function bound$2(bounds, item) {
+    var x, y;
+    return boundStroke(bounds.set(x = item.x || 0, y = item.y || 0, x + item.width || 0, y + item.height || 0), item);
+  }
+
+  function draw$2(context, item) {
+    context.beginPath();
+    rectangle(context, item);
+  }
+
+  var rect = {
+    type: 'rect',
+    tag: 'path',
+    nested: false,
+    attr: attr$2,
+    bound: bound$2,
+    draw: drawAll(draw$2),
+    pick: pickPath(draw$2),
+    isect: intersectRect
+  };
+
+  function attr$1(emit, item) {
+    emit('transform', translateItem(item));
+    emit('x2', item.x2 != null ? item.x2 - (item.x || 0) : 0);
+    emit('y2', item.y2 != null ? item.y2 - (item.y || 0) : 0);
+  }
+
+  function bound$1(bounds, item) {
+    var x1, y1;
+    return boundStroke(bounds.set(x1 = item.x || 0, y1 = item.y || 0, item.x2 != null ? item.x2 : x1, item.y2 != null ? item.y2 : y1), item);
+  }
+
+  function path(context, item, opacity) {
+    var x1, y1, x2, y2;
+
+    if (item.stroke && stroke(context, item, opacity)) {
+      x1 = item.x || 0;
+      y1 = item.y || 0;
+      x2 = item.x2 != null ? item.x2 : x1;
+      y2 = item.y2 != null ? item.y2 : y1;
+      context.beginPath();
+      context.moveTo(x1, y1);
+      context.lineTo(x2, y2);
+      return true;
+    }
+
+    return false;
+  }
+
+  function draw$1(context, scene, bounds) {
+    visit(scene, item => {
+      if (bounds && !bounds.intersects(item.bounds)) return; // bounds check
+
+      var opacity = item.opacity == null ? 1 : item.opacity;
+
+      if (opacity && path(context, item, opacity)) {
+        blend(context, item);
+        context.stroke();
+      }
+    });
+  }
+
+  function hit$1(context, item, x, y) {
+    if (!context.isPointInStroke) return false;
+    return path(context, item, 1) && context.isPointInStroke(x, y);
+  }
+
+  var rule$1 = {
+    type: 'rule',
+    tag: 'line',
+    nested: false,
+    attr: attr$1,
+    bound: bound$1,
+    draw: draw$1,
+    pick: pick$1(hit$1),
+    isect: intersectRule
+  };
+  var shape = markItemPath('shape', shape$1);
+  var symbol = markItemPath('symbol', symbol$1, intersectPoint);
+  const widthCache = lruCache();
+  var textMetrics = {
+    height: fontSize,
+    measureWidth: measureWidth,
+    estimateWidth: estimateWidth,
+    width: estimateWidth,
+    canvas: useCanvas
+  };
+  useCanvas(true);
+
+  function useCanvas(use) {
+    textMetrics.width = use && context$2 ? measureWidth : estimateWidth;
+  } // make simple estimate if no canvas is available
+
+
+  function estimateWidth(item, text) {
+    return _estimateWidth(textValue(item, text), fontSize(item));
+  }
+
+  function _estimateWidth(text, currentFontHeight) {
+    return ~~(0.8 * text.length * currentFontHeight);
+  } // measure text width if canvas is available
+
+
+  function measureWidth(item, text) {
+    return fontSize(item) <= 0 || !(text = textValue(item, text)) ? 0 : _measureWidth(text, font(item));
+  }
+
+  function _measureWidth(text, currentFont) {
+    const key = `(${currentFont}) ${text}`;
+    let width = widthCache.get(key);
+
+    if (width === undefined) {
+      context$2.font = currentFont;
+      width = context$2.measureText(text).width;
+      widthCache.set(key, width);
+    }
+
+    return width;
+  }
+
+  function fontSize(item) {
+    return item.fontSize != null ? +item.fontSize || 0 : 11;
+  }
+
+  function lineHeight(item) {
+    return item.lineHeight != null ? item.lineHeight : fontSize(item) + 2;
+  }
+
+  function lineArray(_) {
+    return isArray(_) ? _.length > 1 ? _ : _[0] : _;
+  }
+
+  function textLines(item) {
+    return lineArray(item.lineBreak && item.text && !isArray(item.text) ? item.text.split(item.lineBreak) : item.text);
+  }
+
+  function multiLineOffset(item) {
+    const tl = textLines(item);
+    return (isArray(tl) ? tl.length - 1 : 0) * lineHeight(item);
+  }
+
+  function textValue(item, line) {
+    const text = line == null ? '' : (line + '').trim();
+    return item.limit > 0 && text.length ? truncate(item, text) : text;
+  }
+
+  function widthGetter(item) {
+    if (textMetrics.width === measureWidth) {
+      // we are using canvas
+      const currentFont = font(item);
+      return text => _measureWidth(text, currentFont);
+    } else {
+      // we are relying on estimates
+      const currentFontHeight = fontSize(item);
+      return text => _estimateWidth(text, currentFontHeight);
+    }
+  }
+
+  function truncate(item, text) {
+    var limit = +item.limit,
+        width = widthGetter(item);
+    if (width(text) < limit) return text;
+    var ellipsis = item.ellipsis || '\u2026',
+        rtl = item.dir === 'rtl',
+        lo = 0,
+        hi = text.length,
+        mid;
+    limit -= width(ellipsis);
+
+    if (rtl) {
+      while (lo < hi) {
+        mid = lo + hi >>> 1;
+        if (width(text.slice(mid)) > limit) lo = mid + 1;else hi = mid;
+      }
+
+      return ellipsis + text.slice(lo);
+    } else {
+      while (lo < hi) {
+        mid = 1 + (lo + hi >>> 1);
+        if (width(text.slice(0, mid)) < limit) lo = mid;else hi = mid - 1;
+      }
+
+      return text.slice(0, lo) + ellipsis;
+    }
+  }
+
+  function fontFamily(item, quote) {
+    var font = item.font;
+    return (quote && font ? String(font).replace(/"/g, '\'') : font) || 'sans-serif';
+  }
+
+  function font(item, quote) {
+    return '' + (item.fontStyle ? item.fontStyle + ' ' : '') + (item.fontVariant ? item.fontVariant + ' ' : '') + (item.fontWeight ? item.fontWeight + ' ' : '') + fontSize(item) + 'px ' + fontFamily(item, quote);
+  }
+
+  function offset$2(item) {
+    // perform our own font baseline calculation
+    // why? not all browsers support SVG 1.1 'alignment-baseline' :(
+    // this also ensures consistent layout across renderers
+    var baseline = item.baseline,
+        h = fontSize(item);
+    return Math.round(baseline === 'top' ? 0.79 * h : baseline === 'middle' ? 0.30 * h : baseline === 'bottom' ? -0.21 * h : baseline === 'line-top' ? 0.29 * h + 0.5 * lineHeight(item) : baseline === 'line-bottom' ? 0.29 * h - 0.5 * lineHeight(item) : 0);
+  }
+
+  const textAlign = {
+    'left': 'start',
+    'center': 'middle',
+    'right': 'end'
+  };
+  const tempBounds$1 = new Bounds();
+
+  function anchorPoint(item) {
+    var x = item.x || 0,
+        y = item.y || 0,
+        r = item.radius || 0,
+        t;
+
+    if (r) {
+      t = (item.theta || 0) - HalfPi;
+      x += r * Math.cos(t);
+      y += r * Math.sin(t);
+    }
+
+    tempBounds$1.x1 = x;
+    tempBounds$1.y1 = y;
+    return tempBounds$1;
+  }
+
+  function attr(emit, item) {
+    var dx = item.dx || 0,
+        dy = (item.dy || 0) + offset$2(item),
+        p = anchorPoint(item),
+        x = p.x1,
+        y = p.y1,
+        a = item.angle || 0,
+        t;
+    emit('text-anchor', textAlign[item.align] || 'start');
+
+    if (a) {
+      t = translate$1(x, y) + ' ' + rotate(a);
+      if (dx || dy) t += ' ' + translate$1(dx, dy);
+    } else {
+      t = translate$1(x + dx, y + dy);
+    }
+
+    emit('transform', t);
+  }
+
+  function bound(bounds, item, mode) {
+    var h = textMetrics.height(item),
+        a = item.align,
+        p = anchorPoint(item),
+        x = p.x1,
+        y = p.y1,
+        dx = item.dx || 0,
+        dy = (item.dy || 0) + offset$2(item) - Math.round(0.8 * h),
+        // use 4/5 offset
+    tl = textLines(item),
+        w; // get dimensions
+
+    if (isArray(tl)) {
+      // multi-line text
+      h += lineHeight(item) * (tl.length - 1);
+      w = tl.reduce((w, t) => Math.max(w, textMetrics.width(item, t)), 0);
+    } else {
+      // single-line text
+      w = textMetrics.width(item, tl);
+    } // horizontal alignment
+
+
+    if (a === 'center') {
+      dx -= w / 2;
+    } else if (a === 'right') {
+      dx -= w;
+    } else ;
+
+    bounds.set(dx += x, dy += y, dx + w, dy + h);
+
+    if (item.angle && !mode) {
+      bounds.rotate(item.angle * DegToRad, x, y);
+    } else if (mode === 2) {
+      return bounds.rotatedPoints(item.angle * DegToRad, x, y);
+    }
+
+    return bounds;
+  }
+
+  function draw$5(context, scene, bounds) {
+    visit(scene, item => {
+      var opacity = item.opacity == null ? 1 : item.opacity,
+          p,
+          x,
+          y,
+          i,
+          lh,
+          tl,
+          str;
+      if (bounds && !bounds.intersects(item.bounds) || // bounds check
+      opacity === 0 || item.fontSize <= 0 || item.text == null || item.text.length === 0) return;
+      context.font = font(item);
+      context.textAlign = item.align || 'left';
+      p = anchorPoint(item);
+      x = p.x1, y = p.y1;
+
+      if (item.angle) {
+        context.save();
+        context.translate(x, y);
+        context.rotate(item.angle * DegToRad);
+        x = y = 0; // reset x, y
+      }
+
+      x += item.dx || 0;
+      y += (item.dy || 0) + offset$2(item);
+      tl = textLines(item);
+      blend(context, item);
+
+      if (isArray(tl)) {
+        lh = lineHeight(item);
+
+        for (i = 0; i < tl.length; ++i) {
+          str = textValue(item, tl[i]);
+
+          if (item.fill && fill(context, item, opacity)) {
+            context.fillText(str, x, y);
+          }
+
+          if (item.stroke && stroke(context, item, opacity)) {
+            context.strokeText(str, x, y);
+          }
+
+          y += lh;
+        }
+      } else {
+        str = textValue(item, tl);
+
+        if (item.fill && fill(context, item, opacity)) {
+          context.fillText(str, x, y);
+        }
+
+        if (item.stroke && stroke(context, item, opacity)) {
+          context.strokeText(str, x, y);
+        }
+      }
+
+      if (item.angle) context.restore();
+    });
+  }
+
+  function hit(context, item, x, y, gx, gy) {
+    if (item.fontSize <= 0) return false;
+    if (!item.angle) return true; // bounds sufficient if no rotation
+    // project point into space of unrotated bounds
+
+    var p = anchorPoint(item),
+        ax = p.x1,
+        ay = p.y1,
+        b = bound(tempBounds$1, item, 1),
+        a = -item.angle * DegToRad,
+        cos = Math.cos(a),
+        sin = Math.sin(a),
+        px = cos * gx - sin * gy + (ax - cos * ax + sin * ay),
+        py = sin * gx + cos * gy + (ay - sin * ax - cos * ay);
+    return b.contains(px, py);
+  }
+
+  function intersectText(item, box) {
+    const p = bound(tempBounds$1, item, 2);
+    return intersectBoxLine(box, p[0], p[1], p[2], p[3]) || intersectBoxLine(box, p[0], p[1], p[4], p[5]) || intersectBoxLine(box, p[4], p[5], p[6], p[7]) || intersectBoxLine(box, p[2], p[3], p[6], p[7]);
+  }
+
+  var text = {
+    type: 'text',
+    tag: 'text',
+    nested: false,
+    attr: attr,
+    bound: bound,
+    draw: draw$5,
+    pick: pick$1(hit),
+    isect: intersectText
+  };
+  var trail = markMultiItemPath('trail', trail$1, pickTrail);
+  var Marks = {
+    arc: arc$2,
+    area: area$2,
+    group: group,
+    image: image,
+    line: line$2,
+    path: path$2,
+    rect: rect,
+    rule: rule$1,
+    shape: shape,
+    symbol: symbol,
+    text: text,
+    trail: trail
+  };
+
+  function boundItem$1(item, func, opt) {
+    var type = Marks[item.mark.marktype],
+        bound = func || type.bound;
+    if (type.nested) item = item.mark;
+    return bound(item.bounds || (item.bounds = new Bounds()), item, opt);
+  }
+
+  var DUMMY = {
+    mark: null
+  };
+
+  function boundMark(mark, bounds, opt) {
+    var type = Marks[mark.marktype],
+        bound = type.bound,
+        items = mark.items,
+        hasItems = items && items.length,
+        i,
+        n,
+        item,
+        b;
+
+    if (type.nested) {
+      if (hasItems) {
+        item = items[0];
+      } else {
+        // no items, fake it
+        DUMMY.mark = mark;
+        item = DUMMY;
+      }
+
+      b = boundItem$1(item, bound, opt);
+      bounds = bounds && bounds.union(b) || b;
+      return bounds;
+    }
+
+    bounds = bounds || mark.bounds && mark.bounds.clear() || new Bounds();
+
+    if (hasItems) {
+      for (i = 0, n = items.length; i < n; ++i) {
+        bounds.union(boundItem$1(items[i], bound, opt));
+      }
+    }
+
+    return mark.bounds = bounds;
+  }
+
+  const keys$1 = ['marktype', 'name', 'role', 'interactive', 'clip', 'items', 'zindex', 'x', 'y', 'width', 'height', 'align', 'baseline', // layout
+  'fill', 'fillOpacity', 'opacity', 'blend', // fill
+  'stroke', 'strokeOpacity', 'strokeWidth', 'strokeCap', // stroke
+  'strokeDash', 'strokeDashOffset', // stroke dash
+  'strokeForeground', 'strokeOffset', // group
+  'startAngle', 'endAngle', 'innerRadius', 'outerRadius', // arc
+  'cornerRadius', 'padAngle', // arc, rect
+  'cornerRadiusTopLeft', 'cornerRadiusTopRight', // rect, group
+  'cornerRadiusBottomLeft', 'cornerRadiusBottomRight', 'interpolate', 'tension', 'orient', 'defined', // area, line
+  'url', 'aspect', 'smooth', // image
+  'path', 'scaleX', 'scaleY', // path
+  'x2', 'y2', // rule
+  'size', 'shape', // symbol
+  'text', 'angle', 'theta', 'radius', 'dir', 'dx', 'dy', // text
+  'ellipsis', 'limit', 'lineBreak', 'lineHeight', 'font', 'fontSize', 'fontWeight', 'fontStyle', 'fontVariant', // font
+  'description', 'aria', 'ariaRole', 'ariaRoleDescription' // aria
+  ];
+
+  function sceneToJSON(scene, indent) {
+    return JSON.stringify(scene, keys$1, indent);
+  }
+
+  function sceneFromJSON(json) {
+    const scene = typeof json === 'string' ? JSON.parse(json) : json;
+    return initialize$1(scene);
+  }
+
+  function initialize$1(scene) {
+    var type = scene.marktype,
+        items = scene.items,
+        parent,
+        i,
+        n;
+
+    if (items) {
+      for (i = 0, n = items.length; i < n; ++i) {
+        parent = type ? 'mark' : 'group';
+        items[i][parent] = scene;
+        if (items[i].zindex) items[i][parent].zdirty = true;
+        if ('group' === (type || parent)) initialize$1(items[i]);
+      }
+    }
+
+    if (type) boundMark(scene);
+    return scene;
+  }
+
+  function Scenegraph(scene) {
+    if (arguments.length) {
+      this.root = sceneFromJSON(scene);
+    } else {
+      this.root = createMark({
+        marktype: 'group',
+        name: 'root',
+        role: 'frame'
+      });
+      this.root.items = [new GroupItem(this.root)];
+    }
+  }
+
+  Scenegraph.prototype = {
+    toJSON(indent) {
+      return sceneToJSON(this.root, indent || 0);
+    },
+
+    mark(markdef, group, index) {
+      group = group || this.root.items[0];
+      const mark = createMark(markdef, group);
+      group.items[index] = mark;
+      if (mark.zindex) mark.group.zdirty = true;
+      return mark;
+    }
+
+  };
+
+  function createMark(def, group) {
+    const mark = {
+      bounds: new Bounds(),
+      clip: !!def.clip,
+      group: group,
+      interactive: def.interactive === false ? false : true,
+      items: [],
+      marktype: def.marktype,
+      name: def.name || undefined,
+      role: def.role || undefined,
+      zindex: def.zindex || 0
+    }; // add accessibility properties if defined
+
+    if (def.aria != null) {
+      mark.aria = def.aria;
+    }
+
+    if (def.description) {
+      mark.description = def.description;
+    }
+
+    return mark;
+  } // create a new DOM element
+
+
+  function domCreate(doc, tag, ns) {
+    if (!doc && typeof document !== 'undefined' && document.createElement) {
+      doc = document;
+    }
+
+    return doc ? ns ? doc.createElementNS(ns, tag) : doc.createElement(tag) : null;
+  } // find first child element with matching tag
+
+
+  function domFind(el, tag) {
+    tag = tag.toLowerCase();
+    var nodes = el.childNodes,
+        i = 0,
+        n = nodes.length;
+
+    for (; i < n; ++i) if (nodes[i].tagName.toLowerCase() === tag) {
+      return nodes[i];
+    }
+  } // retrieve child element at given index
+  // create & insert if doesn't exist or if tags do not match
+
+
+  function domChild(el, index, tag, ns) {
+    var a = el.childNodes[index],
+        b;
+
+    if (!a || a.tagName.toLowerCase() !== tag.toLowerCase()) {
+      b = a || null;
+      a = domCreate(el.ownerDocument, tag, ns);
+      el.insertBefore(a, b);
+    }
+
+    return a;
+  } // remove all child elements at or above the given index
+
+
+  function domClear(el, index) {
+    var nodes = el.childNodes,
+        curr = nodes.length;
+
+    while (curr > index) el.removeChild(nodes[--curr]);
+
+    return el;
+  } // generate css class name for mark
+
+
+  function cssClass(mark) {
+    return 'mark-' + mark.marktype + (mark.role ? ' role-' + mark.role : '') + (mark.name ? ' ' + mark.name : '');
+  }
+
+  function point(event, el) {
+    const rect = el.getBoundingClientRect();
+    return [event.clientX - rect.left - (el.clientLeft || 0), event.clientY - rect.top - (el.clientTop || 0)];
+  }
+
+  function resolveItem(item, event, el, origin) {
+    var mark = item && item.mark,
+        mdef,
+        p;
+
+    if (mark && (mdef = Marks[mark.marktype]).tip) {
+      p = point(event, el);
+      p[0] -= origin[0];
+      p[1] -= origin[1];
+
+      while (item = item.mark.group) {
+        p[0] -= item.x || 0;
+        p[1] -= item.y || 0;
+      }
+
+      item = mdef.tip(mark.items, p);
+    }
+
+    return item;
+  }
+  /**
+   * Create a new Handler instance.
+   * @param {object} [customLoader] - Optional loader instance for
+   *   href URL sanitization. If not specified, a standard loader
+   *   instance will be generated.
+   * @param {function} [customTooltip] - Optional tooltip handler
+   *   function for custom tooltip display.
+   * @constructor
+   */
+
+
+  function Handler(customLoader, customTooltip) {
+    this._active = null;
+    this._handlers = {};
+    this._loader = customLoader || loader();
+    this._tooltip = customTooltip || defaultTooltip$1;
+  } // The default tooltip display handler.
+  // Sets the HTML title attribute on the visualization container.
+
+
+  function defaultTooltip$1(handler, event, item, value) {
+    handler.element().setAttribute('title', value || '');
+  }
+
+  Handler.prototype = {
+    /**
+     * Initialize a new Handler instance.
+     * @param {DOMElement} el - The containing DOM element for the display.
+     * @param {Array<number>} origin - The origin of the display, in pixels.
+     *   The coordinate system will be translated to this point.
+     * @param {object} [obj] - Optional context object that should serve as
+     *   the "this" context for event callbacks.
+     * @return {Handler} - This handler instance.
+     */
+    initialize(el, origin, obj) {
+      this._el = el;
+      this._obj = obj || null;
+      return this.origin(origin);
+    },
+
+    /**
+     * Returns the parent container element for a visualization.
+     * @return {DOMElement} - The containing DOM element.
+     */
+    element() {
+      return this._el;
+    },
+
+    /**
+     * Returns the scene element (e.g., canvas or SVG) of the visualization
+     * Subclasses must override if the first child is not the scene element.
+     * @return {DOMElement} - The scene (e.g., canvas or SVG) element.
+     */
+    canvas() {
+      return this._el && this._el.firstChild;
+    },
+
+    /**
+     * Get / set the origin coordinates of the visualization.
+     */
+    origin(origin) {
+      if (arguments.length) {
+        this._origin = origin || [0, 0];
+        return this;
+      } else {
+        return this._origin.slice();
+      }
+    },
+
+    /**
+     * Get / set the scenegraph root.
+     */
+    scene(scene) {
+      if (!arguments.length) return this._scene;
+      this._scene = scene;
+      return this;
+    },
+
+    /**
+     * Add an event handler. Subclasses should override this method.
+     */
+    on() {},
+
+    /**
+     * Remove an event handler. Subclasses should override this method.
+     */
+    off() {},
+
+    /**
+     * Utility method for finding the array index of an event handler.
+     * @param {Array} h - An array of registered event handlers.
+     * @param {string} type - The event type.
+     * @param {function} handler - The event handler instance to find.
+     * @return {number} - The handler's array index or -1 if not registered.
+     */
+    _handlerIndex(h, type, handler) {
+      for (let i = h ? h.length : 0; --i >= 0;) {
+        if (h[i].type === type && (!handler || h[i].handler === handler)) {
+          return i;
+        }
+      }
+
+      return -1;
+    },
+
+    /**
+     * Returns an array with registered event handlers.
+     * @param {string} [type] - The event type to query. Any annotations
+     *   are ignored; for example, for the argument "click.foo", ".foo" will
+     *   be ignored and the method returns all "click" handlers. If type is
+     *   null or unspecified, this method returns handlers for all types.
+     * @return {Array} - A new array containing all registered event handlers.
+     */
+    handlers(type) {
+      const h = this._handlers,
+            a = [];
+
+      if (type) {
+        a.push(...h[this.eventName(type)]);
+      } else {
+        for (const k in h) {
+          a.push(...h[k]);
+        }
+      }
+
+      return a;
+    },
+
+    /**
+     * Parses an event name string to return the specific event type.
+     * For example, given "click.foo" returns "click"
+     * @param {string} name - The input event type string.
+     * @return {string} - A string with the event type only.
+     */
+    eventName(name) {
+      const i = name.indexOf('.');
+      return i < 0 ? name : name.slice(0, i);
+    },
+
+    /**
+     * Handle hyperlink navigation in response to an item.href value.
+     * @param {Event} event - The event triggering hyperlink navigation.
+     * @param {Item} item - The scenegraph item.
+     * @param {string} href - The URL to navigate to.
+     */
+    handleHref(event, item, href) {
+      this._loader.sanitize(href, {
+        context: 'href'
+      }).then(opt => {
+        const e = new MouseEvent(event.type, event),
+              a = domCreate(null, 'a');
+
+        for (const name in opt) a.setAttribute(name, opt[name]);
+
+        a.dispatchEvent(e);
+      }).catch(() => {
+        /* do nothing */
+      });
+    },
+
+    /**
+     * Handle tooltip display in response to an item.tooltip value.
+     * @param {Event} event - The event triggering tooltip display.
+     * @param {Item} item - The scenegraph item.
+     * @param {boolean} show - A boolean flag indicating whether
+     *   to show or hide a tooltip for the given item.
+     */
+    handleTooltip(event, item, show) {
+      if (item && item.tooltip != null) {
+        item = resolveItem(item, event, this.canvas(), this._origin);
+        const value = show && item && item.tooltip || null;
+
+        this._tooltip.call(this._obj, this, event, item, value);
+      }
+    },
+
+    /**
+     * Returns the size of a scenegraph item and its position relative
+     * to the viewport.
+     * @param {Item} item - The scenegraph item.
+     * @return {object} - A bounding box object (compatible with the
+     *   DOMRect type) consisting of x, y, width, heigh, top, left,
+     *   right, and bottom properties.
+     */
+    getItemBoundingClientRect(item) {
+      const el = this.canvas();
+      if (!el) return;
+      const rect = el.getBoundingClientRect(),
+            origin = this._origin,
+            bounds = item.bounds,
+            width = bounds.width(),
+            height = bounds.height();
+      let x = bounds.x1 + origin[0] + rect.left,
+          y = bounds.y1 + origin[1] + rect.top; // translate coordinate for each parent group
+
+      while (item.mark && (item = item.mark.group)) {
+        x += item.x || 0;
+        y += item.y || 0;
+      } // return DOMRect-compatible bounding box
+
+
+      return {
+        x,
+        y,
+        width,
+        height,
+        left: x,
+        top: y,
+        right: x + width,
+        bottom: y + height
+      };
+    }
+
+  };
+  /**
+   * Create a new Renderer instance.
+   * @param {object} [loader] - Optional loader instance for
+   *   image and href URL sanitization. If not specified, a
+   *   standard loader instance will be generated.
+   * @constructor
+   */
+
+  function Renderer(loader) {
+    this._el = null;
+    this._bgcolor = null;
+    this._loader = new ResourceLoader(loader);
+  }
+
+  Renderer.prototype = {
+    /**
+     * Initialize a new Renderer instance.
+     * @param {DOMElement} el - The containing DOM element for the display.
+     * @param {number} width - The coordinate width of the display, in pixels.
+     * @param {number} height - The coordinate height of the display, in pixels.
+     * @param {Array<number>} origin - The origin of the display, in pixels.
+     *   The coordinate system will be translated to this point.
+     * @param {number} [scaleFactor=1] - Optional scaleFactor by which to multiply
+     *   the width and height to determine the final pixel size.
+     * @return {Renderer} - This renderer instance.
+     */
+    initialize(el, width, height, origin, scaleFactor) {
+      this._el = el;
+      return this.resize(width, height, origin, scaleFactor);
+    },
+
+    /**
+     * Returns the parent container element for a visualization.
+     * @return {DOMElement} - The containing DOM element.
+     */
+    element() {
+      return this._el;
+    },
+
+    /**
+     * Returns the scene element (e.g., canvas or SVG) of the visualization
+     * Subclasses must override if the first child is not the scene element.
+     * @return {DOMElement} - The scene (e.g., canvas or SVG) element.
+     */
+    canvas() {
+      return this._el && this._el.firstChild;
+    },
+
+    /**
+     * Get / set the background color.
+     */
+    background(bgcolor) {
+      if (arguments.length === 0) return this._bgcolor;
+      this._bgcolor = bgcolor;
+      return this;
+    },
+
+    /**
+     * Resize the display.
+     * @param {number} width - The new coordinate width of the display, in pixels.
+     * @param {number} height - The new coordinate height of the display, in pixels.
+     * @param {Array<number>} origin - The new origin of the display, in pixels.
+     *   The coordinate system will be translated to this point.
+     * @param {number} [scaleFactor=1] - Optional scaleFactor by which to multiply
+     *   the width and height to determine the final pixel size.
+     * @return {Renderer} - This renderer instance;
+     */
+    resize(width, height, origin, scaleFactor) {
+      this._width = width;
+      this._height = height;
+      this._origin = origin || [0, 0];
+      this._scale = scaleFactor || 1;
+      return this;
+    },
+
+    /**
+     * Report a dirty item whose bounds should be redrawn.
+     * This base class method does nothing. Subclasses that perform
+     * incremental should implement this method.
+     * @param {Item} item - The dirty item whose bounds should be redrawn.
+     */
+    dirty() {},
+
+    /**
+     * Render an input scenegraph, potentially with a set of dirty items.
+     * This method will perform an immediate rendering with available resources.
+     * The renderer may also need to perform image loading to perform a complete
+     * render. This process can lead to asynchronous re-rendering of the scene
+     * after this method returns. To receive notification when rendering is
+     * complete, use the renderAsync method instead.
+     * @param {object} scene - The root mark of a scenegraph to render.
+     * @return {Renderer} - This renderer instance.
+     */
+    render(scene) {
+      const r = this; // bind arguments into a render call, and cache it
+      // this function may be subsequently called for async redraw
+
+      r._call = function () {
+        r._render(scene);
+      }; // invoke the renderer
+
+
+      r._call(); // clear the cached call for garbage collection
+      // async redraws will stash their own copy
+
+
+      r._call = null;
+      return r;
+    },
+
+    /**
+     * Internal rendering method. Renderer subclasses should override this
+     * method to actually perform rendering.
+     * @param {object} scene - The root mark of a scenegraph to render.
+     */
+    _render() {// subclasses to override
+    },
+
+    /**
+     * Asynchronous rendering method. Similar to render, but returns a Promise
+     * that resolves when all rendering is completed. Sometimes a renderer must
+     * perform image loading to get a complete rendering. The returned
+     * Promise will not resolve until this process completes.
+     * @param {object} scene - The root mark of a scenegraph to render.
+     * @return {Promise} - A Promise that resolves when rendering is complete.
+     */
+    renderAsync(scene) {
+      const r = this.render(scene);
+      return this._ready ? this._ready.then(() => r) : Promise.resolve(r);
+    },
+
+    /**
+     * Internal method for asynchronous resource loading.
+     * Proxies method calls to the ImageLoader, and tracks loading
+     * progress to invoke a re-render once complete.
+     * @param {string} method - The method name to invoke on the ImageLoader.
+     * @param {string} uri - The URI for the requested resource.
+     * @return {Promise} - A Promise that resolves to the requested resource.
+     */
+    _load(method, uri) {
+      var r = this,
+          p = r._loader[method](uri);
+
+      if (!r._ready) {
+        // re-render the scene when loading completes
+        const call = r._call;
+        r._ready = r._loader.ready().then(redraw => {
+          if (redraw) call();
+          r._ready = null;
+        });
+      }
+
+      return p;
+    },
+
+    /**
+     * Sanitize a URL to include as a hyperlink in the rendered scene.
+     * This method proxies a call to ImageLoader.sanitizeURL, but also tracks
+     * image loading progress and invokes a re-render once complete.
+     * @param {string} uri - The URI string to sanitize.
+     * @return {Promise} - A Promise that resolves to the sanitized URL.
+     */
+    sanitizeURL(uri) {
+      return this._load('sanitizeURL', uri);
+    },
+
+    /**
+     * Requests an image to include in the rendered scene.
+     * This method proxies a call to ImageLoader.loadImage, but also tracks
+     * image loading progress and invokes a re-render once complete.
+     * @param {string} uri - The URI string of the image.
+     * @return {Promise} - A Promise that resolves to the loaded Image.
+     */
+    loadImage(uri) {
+      return this._load('loadImage', uri);
+    }
+
+  };
+  const KeyDownEvent = 'keydown';
+  const KeyPressEvent = 'keypress';
+  const KeyUpEvent = 'keyup';
+  const DragEnterEvent = 'dragenter';
+  const DragLeaveEvent = 'dragleave';
+  const DragOverEvent = 'dragover';
+  const MouseDownEvent = 'mousedown';
+  const MouseUpEvent = 'mouseup';
+  const MouseMoveEvent = 'mousemove';
+  const MouseOutEvent = 'mouseout';
+  const MouseOverEvent = 'mouseover';
+  const ClickEvent = 'click';
+  const DoubleClickEvent = 'dblclick';
+  const WheelEvent = 'wheel';
+  const MouseWheelEvent = 'mousewheel';
+  const TouchStartEvent = 'touchstart';
+  const TouchMoveEvent = 'touchmove';
+  const TouchEndEvent = 'touchend';
+  const Events = [KeyDownEvent, KeyPressEvent, KeyUpEvent, DragEnterEvent, DragLeaveEvent, DragOverEvent, MouseDownEvent, MouseUpEvent, MouseMoveEvent, MouseOutEvent, MouseOverEvent, ClickEvent, DoubleClickEvent, WheelEvent, MouseWheelEvent, TouchStartEvent, TouchMoveEvent, TouchEndEvent];
+  const TooltipShowEvent = MouseMoveEvent;
+  const TooltipHideEvent = MouseOutEvent;
+  const HrefEvent = ClickEvent;
+
+  function CanvasHandler(loader, tooltip) {
+    Handler.call(this, loader, tooltip);
+    this._down = null;
+    this._touch = null;
+    this._first = true;
+    this._events = {};
+  }
+
+  const eventBundle = type => type === TouchStartEvent || type === TouchMoveEvent || type === TouchEndEvent ? [TouchStartEvent, TouchMoveEvent, TouchEndEvent] : [type]; // lazily add listeners to the canvas as needed
+
+
+  function eventListenerCheck(handler, type) {
+    eventBundle(type).forEach(_ => addEventListener(handler, _));
+  }
+
+  function addEventListener(handler, type) {
+    const canvas = handler.canvas();
+
+    if (canvas && !handler._events[type]) {
+      handler._events[type] = 1;
+      canvas.addEventListener(type, handler[type] ? evt => handler[type](evt) : evt => handler.fire(type, evt));
+    }
+  }
+
+  function move(moveEvent, overEvent, outEvent) {
+    return function (evt) {
+      const a = this._active,
+            p = this.pickEvent(evt);
+
+      if (p === a) {
+        // active item and picked item are the same
+        this.fire(moveEvent, evt); // fire move
+      } else {
+        // active item and picked item are different
+        if (!a || !a.exit) {
+          // fire out for prior active item
+          // suppress if active item was removed from scene
+          this.fire(outEvent, evt);
+        }
+
+        this._active = p; // set new active item
+
+        this.fire(overEvent, evt); // fire over for new active item
+
+        this.fire(moveEvent, evt); // fire move for new active item
+      }
+    };
+  }
+
+  function inactive(type) {
+    return function (evt) {
+      this.fire(type, evt);
+      this._active = null;
+    };
+  }
+
+  inherits(CanvasHandler, Handler, {
+    initialize(el, origin, obj) {
+      this._canvas = el && domFind(el, 'canvas'); // add minimal events required for proper state management
+
+      [ClickEvent, MouseDownEvent, MouseMoveEvent, MouseOutEvent, DragLeaveEvent].forEach(type => eventListenerCheck(this, type));
+      return Handler.prototype.initialize.call(this, el, origin, obj);
+    },
+
+    // return the backing canvas instance
+    canvas() {
+      return this._canvas;
+    },
+
+    // retrieve the current canvas context
+    context() {
+      return this._canvas.getContext('2d');
+    },
+
+    // supported events
+    events: Events,
+
+    // to keep old versions of firefox happy
+    DOMMouseScroll(evt) {
+      this.fire(MouseWheelEvent, evt);
+    },
+
+    mousemove: move(MouseMoveEvent, MouseOverEvent, MouseOutEvent),
+    dragover: move(DragOverEvent, DragEnterEvent, DragLeaveEvent),
+    mouseout: inactive(MouseOutEvent),
+    dragleave: inactive(DragLeaveEvent),
+
+    mousedown(evt) {
+      this._down = this._active;
+      this.fire(MouseDownEvent, evt);
+    },
+
+    click(evt) {
+      if (this._down === this._active) {
+        this.fire(ClickEvent, evt);
+        this._down = null;
+      }
+    },
+
+    touchstart(evt) {
+      this._touch = this.pickEvent(evt.changedTouches[0]);
+
+      if (this._first) {
+        this._active = this._touch;
+        this._first = false;
+      }
+
+      this.fire(TouchStartEvent, evt, true);
+    },
+
+    touchmove(evt) {
+      this.fire(TouchMoveEvent, evt, true);
+    },
+
+    touchend(evt) {
+      this.fire(TouchEndEvent, evt, true);
+      this._touch = null;
+    },
+
+    // fire an event
+    fire(type, evt, touch) {
+      const a = touch ? this._touch : this._active,
+            h = this._handlers[type]; // set event type relative to scenegraph items
+
+      evt.vegaType = type; // handle hyperlinks and tooltips first
+
+      if (type === HrefEvent && a && a.href) {
+        this.handleHref(evt, a, a.href);
+      } else if (type === TooltipShowEvent || type === TooltipHideEvent) {
+        this.handleTooltip(evt, a, type !== TooltipHideEvent);
+      } // invoke all registered handlers
+
+
+      if (h) {
+        for (let i = 0, len = h.length; i < len; ++i) {
+          h[i].handler.call(this._obj, evt, a);
+        }
+      }
+    },
+
+    // add an event handler
+    on(type, handler) {
+      const name = this.eventName(type),
+            h = this._handlers,
+            i = this._handlerIndex(h[name], type, handler);
+
+      if (i < 0) {
+        eventListenerCheck(this, type);
+        (h[name] || (h[name] = [])).push({
+          type: type,
+          handler: handler
+        });
+      }
+
+      return this;
+    },
+
+    // remove an event handler
+    off(type, handler) {
+      const name = this.eventName(type),
+            h = this._handlers[name],
+            i = this._handlerIndex(h, type, handler);
+
+      if (i >= 0) {
+        h.splice(i, 1);
+      }
+
+      return this;
+    },
+
+    pickEvent(evt) {
+      const p = point(evt, this._canvas),
+            o = this._origin;
+      return this.pick(this._scene, p[0], p[1], p[0] - o[0], p[1] - o[1]);
+    },
+
+    // find the scenegraph item at the current mouse position
+    // x, y -- the absolute x, y mouse coordinates on the canvas element
+    // gx, gy -- the relative coordinates within the current group
+    pick(scene, x, y, gx, gy) {
+      const g = this.context(),
+            mark = Marks[scene.marktype];
+      return mark.pick.call(this, g, scene, x, y, gx, gy);
+    }
+
+  });
+
+  function devicePixelRatio() {
+    return typeof window !== 'undefined' ? window.devicePixelRatio || 1 : 1;
+  }
+
+  var pixelRatio = devicePixelRatio();
+
+  function resize(canvas, width, height, origin, scaleFactor, opt) {
+    const inDOM = typeof HTMLElement !== 'undefined' && canvas instanceof HTMLElement && canvas.parentNode != null,
+          context = canvas.getContext('2d'),
+          ratio = inDOM ? pixelRatio : scaleFactor;
+    canvas.width = width * ratio;
+    canvas.height = height * ratio;
+
+    for (const key in opt) {
+      context[key] = opt[key];
+    }
+
+    if (inDOM && ratio !== 1) {
+      canvas.style.width = width + 'px';
+      canvas.style.height = height + 'px';
+    }
+
+    context.pixelRatio = ratio;
+    context.setTransform(ratio, 0, 0, ratio, ratio * origin[0], ratio * origin[1]);
+    return canvas;
+  }
+
+  function CanvasRenderer(loader) {
+    Renderer.call(this, loader);
+    this._options = {};
+    this._redraw = false;
+    this._dirty = new Bounds();
+    this._tempb = new Bounds();
+  }
+
+  const base$1 = Renderer.prototype;
+
+  const viewBounds = (origin, width, height) => new Bounds().set(0, 0, width, height).translate(-origin[0], -origin[1]);
+
+  function clipToBounds(g, b, origin) {
+    // expand bounds by 1 pixel, then round to pixel boundaries
+    b.expand(1).round(); // align to base pixel grid in case of non-integer scaling (#2425)
+
+    if (g.pixelRatio % 1) {
+      b.scale(g.pixelRatio).round().scale(1 / g.pixelRatio);
+    } // to avoid artifacts translate if origin has fractional pixels
+
+
+    b.translate(-(origin[0] % 1), -(origin[1] % 1)); // set clip path
+
+    g.beginPath();
+    g.rect(b.x1, b.y1, b.width(), b.height());
+    g.clip();
+    return b;
+  }
+
+  inherits(CanvasRenderer, Renderer, {
+    initialize(el, width, height, origin, scaleFactor, options) {
+      this._options = options || {};
+      this._canvas = this._options.externalContext ? null : domCanvas(1, 1, this._options.type); // instantiate a small canvas
+
+      if (el && this._canvas) {
+        domClear(el, 0).appendChild(this._canvas);
+
+        this._canvas.setAttribute('class', 'marks');
+      } // this method will invoke resize to size the canvas appropriately
+
+
+      return base$1.initialize.call(this, el, width, height, origin, scaleFactor);
+    },
+
+    resize(width, height, origin, scaleFactor) {
+      base$1.resize.call(this, width, height, origin, scaleFactor);
+
+      if (this._canvas) {
+        // configure canvas size and transform
+        resize(this._canvas, this._width, this._height, this._origin, this._scale, this._options.context);
+      } else {
+        // external context needs to be scaled and positioned to origin
+        const ctx = this._options.externalContext;
+        if (!ctx) error('CanvasRenderer is missing a valid canvas or context');
+        ctx.scale(this._scale, this._scale);
+        ctx.translate(this._origin[0], this._origin[1]);
+      }
+
+      this._redraw = true;
+      return this;
+    },
+
+    canvas() {
+      return this._canvas;
+    },
+
+    context() {
+      return this._options.externalContext || (this._canvas ? this._canvas.getContext('2d') : null);
+    },
+
+    dirty(item) {
+      const b = this._tempb.clear().union(item.bounds);
+
+      let g = item.mark.group;
+
+      while (g) {
+        b.translate(g.x || 0, g.y || 0);
+        g = g.mark.group;
+      }
+
+      this._dirty.union(b);
+    },
+
+    _render(scene) {
+      const g = this.context(),
+            o = this._origin,
+            w = this._width,
+            h = this._height,
+            db = this._dirty,
+            vb = viewBounds(o, w, h); // setup
+
+      g.save();
+      const b = this._redraw || db.empty() ? (this._redraw = false, vb.expand(1)) : clipToBounds(g, vb.intersect(db), o);
+      this.clear(-o[0], -o[1], w, h); // render
+
+      this.draw(g, scene, b); // takedown
+
+      g.restore();
+      db.clear();
+      return this;
+    },
+
+    draw(ctx, scene, bounds) {
+      const mark = Marks[scene.marktype];
+      if (scene.clip) clip$2(ctx, scene);
+      mark.draw.call(this, ctx, scene, bounds);
+      if (scene.clip) ctx.restore();
+    },
+
+    clear(x, y, w, h) {
+      const opt = this._options,
+            g = this.context();
+
+      if (opt.type !== 'pdf' && !opt.externalContext) {
+        // calling clear rect voids vector output in pdf mode
+        // and could remove external context content (#2615)
+        g.clearRect(x, y, w, h);
+      }
+
+      if (this._bgcolor != null) {
+        g.fillStyle = this._bgcolor;
+        g.fillRect(x, y, w, h);
+      }
+    }
+
+  });
+
+  function SVGHandler(loader, tooltip) {
+    Handler.call(this, loader, tooltip);
+    const h = this;
+    h._hrefHandler = listener(h, (evt, item) => {
+      if (item && item.href) h.handleHref(evt, item, item.href);
+    });
+    h._tooltipHandler = listener(h, (evt, item) => {
+      h.handleTooltip(evt, item, evt.type !== TooltipHideEvent);
+    });
+  } // wrap an event listener for the SVG DOM
+
+
+  const listener = (context, handler) => evt => {
+    let item = evt.target.__data__;
+    item = Array.isArray(item) ? item[0] : item;
+    evt.vegaType = evt.type;
+    handler.call(context._obj, evt, item);
+  };
+
+  inherits(SVGHandler, Handler, {
+    initialize(el, origin, obj) {
+      let svg = this._svg;
+
+      if (svg) {
+        svg.removeEventListener(HrefEvent, this._hrefHandler);
+        svg.removeEventListener(TooltipShowEvent, this._tooltipHandler);
+        svg.removeEventListener(TooltipHideEvent, this._tooltipHandler);
+      }
+
+      this._svg = svg = el && domFind(el, 'svg');
+
+      if (svg) {
+        svg.addEventListener(HrefEvent, this._hrefHandler);
+        svg.addEventListener(TooltipShowEvent, this._tooltipHandler);
+        svg.addEventListener(TooltipHideEvent, this._tooltipHandler);
+      }
+
+      return Handler.prototype.initialize.call(this, el, origin, obj);
+    },
+
+    canvas() {
+      return this._svg;
+    },
+
+    // add an event handler
+    on(type, handler) {
+      const name = this.eventName(type),
+            h = this._handlers,
+            i = this._handlerIndex(h[name], type, handler);
+
+      if (i < 0) {
+        const x = {
+          type,
+          handler,
+          listener: listener(this, handler)
+        };
+        (h[name] || (h[name] = [])).push(x);
+
+        if (this._svg) {
+          this._svg.addEventListener(name, x.listener);
+        }
+      }
+
+      return this;
+    },
+
+    // remove an event handler
+    off(type, handler) {
+      const name = this.eventName(type),
+            h = this._handlers[name],
+            i = this._handlerIndex(h, type, handler);
+
+      if (i >= 0) {
+        if (this._svg) {
+          this._svg.removeEventListener(name, h[i].listener);
+        }
+
+        h.splice(i, 1);
+      }
+
+      return this;
+    }
+
+  });
+  const ARIA_HIDDEN = 'aria-hidden';
+  const ARIA_LABEL = 'aria-label';
+  const ARIA_ROLE = 'role';
+  const ARIA_ROLEDESCRIPTION = 'aria-roledescription';
+  const GRAPHICS_OBJECT = 'graphics-object';
+  const GRAPHICS_SYMBOL = 'graphics-symbol';
+
+  const bundle = (role, roledesc, label) => ({
+    [ARIA_ROLE]: role,
+    [ARIA_ROLEDESCRIPTION]: roledesc,
+    [ARIA_LABEL]: label || undefined
+  }); // these roles are covered by related roles
+  // we can ignore them, no need to generate attributes
+
+
+  const AriaIgnore = toSet(['axis-domain', 'axis-grid', 'axis-label', 'axis-tick', 'axis-title', 'legend-band', 'legend-entry', 'legend-gradient', 'legend-label', 'legend-title', 'legend-symbol', 'title']); // aria attribute generators for guide roles
+
+  const AriaGuides = {
+    'axis': {
+      desc: 'axis',
+      caption: axisCaption
+    },
+    'legend': {
+      desc: 'legend',
+      caption: legendCaption
+    },
+    'title-text': {
+      desc: 'title',
+      caption: item => `Title text '${titleCaption(item)}'`
+    },
+    'title-subtitle': {
+      desc: 'subtitle',
+      caption: item => `Subtitle text '${titleCaption(item)}'`
+    }
+  }; // aria properties generated for mark item encoding channels
+
+  const AriaEncode = {
+    ariaRole: ARIA_ROLE,
+    ariaRoleDescription: ARIA_ROLEDESCRIPTION,
+    description: ARIA_LABEL
+  };
+
+  function ariaItemAttributes(emit, item) {
+    const hide = item.aria === false;
+    emit(ARIA_HIDDEN, hide || undefined);
+
+    if (hide || item.description == null) {
+      for (const prop in AriaEncode) {
+        emit(AriaEncode[prop], undefined);
+      }
+    } else {
+      const type = item.mark.marktype;
+      emit(ARIA_LABEL, item.description);
+      emit(ARIA_ROLE, item.ariaRole || (type === 'group' ? GRAPHICS_OBJECT : GRAPHICS_SYMBOL));
+      emit(ARIA_ROLEDESCRIPTION, item.ariaRoleDescription || `${type} mark`);
+    }
+  }
+
+  function ariaMarkAttributes(mark) {
+    return mark.aria === false ? {
+      [ARIA_HIDDEN]: true
+    } : AriaIgnore[mark.role] ? null : AriaGuides[mark.role] ? ariaGuide(mark, AriaGuides[mark.role]) : ariaMark(mark);
+  }
+
+  function ariaMark(mark) {
+    const type = mark.marktype;
+    const recurse = type === 'group' || type === 'text' || mark.items.some(_ => _.description != null && _.aria !== false);
+    return bundle(recurse ? GRAPHICS_OBJECT : GRAPHICS_SYMBOL, `${type} mark container`, mark.description);
+  }
+
+  function ariaGuide(mark, opt) {
+    try {
+      const item = mark.items[0],
+            caption = opt.caption || (() => '');
+
+      return bundle(opt.role || GRAPHICS_SYMBOL, opt.desc, item.description || caption(item));
+    } catch (err) {
+      return null;
+    }
+  }
+
+  function titleCaption(item) {
+    return array$5(item.text).join(' ');
+  }
+
+  function axisCaption(item) {
+    const datum = item.datum,
+          orient = item.orient,
+          title = datum.title ? extractTitle(item) : null,
+          ctx = item.context,
+          scale = ctx.scales[datum.scale].value,
+          locale = ctx.dataflow.locale(),
+          type = scale.type,
+          xy = orient === 'left' || orient === 'right' ? 'Y' : 'X';
+    return `${xy}-axis` + (title ? ` titled '${title}'` : '') + ` for a ${isDiscrete(type) ? 'discrete' : type} scale` + ` with ${domainCaption(locale, scale, item)}`;
+  }
+
+  function legendCaption(item) {
+    const datum = item.datum,
+          title = datum.title ? extractTitle(item) : null,
+          type = `${datum.type || ''} legend`.trim(),
+          scales = datum.scales,
+          props = Object.keys(scales),
+          ctx = item.context,
+          scale = ctx.scales[scales[props[0]]].value,
+          locale = ctx.dataflow.locale();
+    return capitalize(type) + (title ? ` titled '${title}'` : '') + ` for ${channelCaption(props)}` + ` with ${domainCaption(locale, scale, item)}`;
+  }
+
+  function extractTitle(item) {
+    try {
+      return array$5(peek$1(item.items).items[0].text).join(' ');
+    } catch (err) {
+      return null;
+    }
+  }
+
+  function channelCaption(props) {
+    props = props.map(p => p + (p === 'fill' || p === 'stroke' ? ' color' : ''));
+    return props.length < 2 ? props[0] : props.slice(0, -1).join(', ') + ' and ' + peek$1(props);
+  }
+
+  function capitalize(s) {
+    return s.length ? s[0].toUpperCase() + s.slice(1) : s;
+  }
+
+  const innerText = val => (val + '').replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+
+  const attrText = val => innerText(val).replace(/"/g, '&quot;').replace(/\t/g, '&#x9;').replace(/\n/g, '&#xA;').replace(/\r/g, '&#xD;');
+
+  function markup() {
+    let buf = '',
+        outer = '',
+        inner = '';
+
+    const stack = [],
+          clear = () => outer = inner = '',
+          push = tag => {
+      if (outer) {
+        buf += `${outer}>${inner}`;
+        clear();
+      }
+
+      stack.push(tag);
+    },
+          attr = (name, value) => {
+      if (value != null) outer += ` ${name}="${attrText(value)}"`;
+      return m;
+    },
+          m = {
+      open(tag, ...attrs) {
+        push(tag);
+        outer = '<' + tag;
+
+        for (const set of attrs) {
+          for (const key in set) attr(key, set[key]);
+        }
+
+        return m;
+      },
+
+      close() {
+        const tag = stack.pop();
+
+        if (outer) {
+          buf += outer + (inner ? `>${inner}</${tag}>` : '/>');
+        } else {
+          buf += `</${tag}>`;
+        }
+
+        clear();
+        return m;
+      },
+
+      attr,
+      text: t => (inner += innerText(t), m),
+      toString: () => buf
+    };
+
+    return m;
+  }
+
+  const serializeXML = node => _serialize(markup(), node) + '';
+
+  function _serialize(m, node) {
+    m.open(node.tagName);
+
+    if (node.hasAttributes()) {
+      const attrs = node.attributes,
+            n = attrs.length;
+
+      for (let i = 0; i < n; ++i) {
+        m.attr(attrs[i].name, attrs[i].value);
+      }
+    }
+
+    if (node.hasChildNodes()) {
+      const children = node.childNodes;
+
+      for (const child of children) {
+        child.nodeType === 3 // text node
+        ? m.text(child.nodeValue) : _serialize(m, child);
+      }
+    }
+
+    return m.close();
+  }
+
+  const styles = {
+    fill: 'fill',
+    fillOpacity: 'fill-opacity',
+    stroke: 'stroke',
+    strokeOpacity: 'stroke-opacity',
+    strokeWidth: 'stroke-width',
+    strokeCap: 'stroke-linecap',
+    strokeJoin: 'stroke-linejoin',
+    strokeDash: 'stroke-dasharray',
+    strokeDashOffset: 'stroke-dashoffset',
+    strokeMiterLimit: 'stroke-miterlimit',
+    opacity: 'opacity',
+    blend: 'mix-blend-mode'
+  }; // ensure miter limit default is consistent with canvas (#2498)
+
+  const rootAttributes = {
+    'fill': 'none',
+    'stroke-miterlimit': 10
+  };
+  const RootIndex = 0,
+        xmlns = 'http://www.w3.org/2000/xmlns/',
+        svgns = metadata.xmlns;
+
+  function SVGRenderer(loader) {
+    Renderer.call(this, loader);
+    this._dirtyID = 0;
+    this._dirty = [];
+    this._svg = null;
+    this._root = null;
+    this._defs = null;
+  }
+
+  const base = Renderer.prototype;
+  inherits(SVGRenderer, Renderer, {
+    /**
+     * Initialize a new SVGRenderer instance.
+     * @param {DOMElement} el - The containing DOM element for the display.
+     * @param {number} width - The coordinate width of the display, in pixels.
+     * @param {number} height - The coordinate height of the display, in pixels.
+     * @param {Array<number>} origin - The origin of the display, in pixels.
+     *   The coordinate system will be translated to this point.
+     * @param {number} [scaleFactor=1] - Optional scaleFactor by which to multiply
+     *   the width and height to determine the final pixel size.
+     * @return {SVGRenderer} - This renderer instance.
+     */
+    initialize(el, width, height, origin, scaleFactor) {
+      // create the svg definitions cache
+      this._defs = {};
+
+      this._clearDefs();
+
+      if (el) {
+        this._svg = domChild(el, 0, 'svg', svgns);
+
+        this._svg.setAttributeNS(xmlns, 'xmlns', svgns);
+
+        this._svg.setAttributeNS(xmlns, 'xmlns:xlink', metadata['xmlns:xlink']);
+
+        this._svg.setAttribute('version', metadata['version']);
+
+        this._svg.setAttribute('class', 'marks');
+
+        domClear(el, 1); // set the svg root group
+
+        this._root = domChild(this._svg, RootIndex, 'g', svgns);
+        setAttributes(this._root, rootAttributes); // ensure no additional child elements
+
+        domClear(this._svg, RootIndex + 1);
+      } // set background color if defined
+
+
+      this.background(this._bgcolor);
+      return base.initialize.call(this, el, width, height, origin, scaleFactor);
+    },
+
+    /**
+     * Get / set the background color.
+     */
+    background(bgcolor) {
+      if (arguments.length && this._svg) {
+        this._svg.style.setProperty('background-color', bgcolor);
+      }
+
+      return base.background.apply(this, arguments);
+    },
+
+    /**
+     * Resize the display.
+     * @param {number} width - The new coordinate width of the display, in pixels.
+     * @param {number} height - The new coordinate height of the display, in pixels.
+     * @param {Array<number>} origin - The new origin of the display, in pixels.
+     *   The coordinate system will be translated to this point.
+     * @param {number} [scaleFactor=1] - Optional scaleFactor by which to multiply
+     *   the width and height to determine the final pixel size.
+     * @return {SVGRenderer} - This renderer instance;
+     */
+    resize(width, height, origin, scaleFactor) {
+      base.resize.call(this, width, height, origin, scaleFactor);
+
+      if (this._svg) {
+        setAttributes(this._svg, {
+          width: this._width * this._scale,
+          height: this._height * this._scale,
+          viewBox: `0 0 ${this._width} ${this._height}`
+        });
+
+        this._root.setAttribute('transform', `translate(${this._origin})`);
+      }
+
+      this._dirty = [];
+      return this;
+    },
+
+    /**
+     * Returns the SVG element of the visualization.
+     * @return {DOMElement} - The SVG element.
+     */
+    canvas() {
+      return this._svg;
+    },
+
+    /**
+     * Returns an SVG text string for the rendered content,
+     * or null if this renderer is currently headless.
+     */
+    svg() {
+      const svg = this._svg,
+            bg = this._bgcolor;
+      if (!svg) return null;
+      let node;
+
+      if (bg) {
+        svg.removeAttribute('style');
+        node = domChild(svg, RootIndex, 'rect', svgns);
+        setAttributes(node, {
+          width: this._width,
+          height: this._height,
+          fill: bg
+        });
+      }
+
+      const text = serializeXML(svg);
+
+      if (bg) {
+        svg.removeChild(node);
+
+        this._svg.style.setProperty('background-color', bg);
+      }
+
+      return text;
+    },
+
+    /**
+     * Internal rendering method.
+     * @param {object} scene - The root mark of a scenegraph to render.
+     */
+    _render(scene) {
+      // perform spot updates and re-render markup
+      if (this._dirtyCheck()) {
+        if (this._dirtyAll) this._clearDefs();
+        this.mark(this._root, scene);
+        domClear(this._root, 1);
+      }
+
+      this.defs();
+      this._dirty = [];
+      ++this._dirtyID;
+      return this;
+    },
+
+    // -- Manage rendering of items marked as dirty --
+
+    /**
+     * Flag a mark item as dirty.
+     * @param {Item} item - The mark item.
+     */
+    dirty(item) {
+      if (item.dirty !== this._dirtyID) {
+        item.dirty = this._dirtyID;
+
+        this._dirty.push(item);
+      }
+    },
+
+    /**
+     * Check if a mark item is considered dirty.
+     * @param {Item} item - The mark item.
+     */
+    isDirty(item) {
+      return this._dirtyAll || !item._svg || item.dirty === this._dirtyID;
+    },
+
+    /**
+     * Internal method to check dirty status and, if possible,
+     * make targetted updates without a full rendering pass.
+     */
+    _dirtyCheck() {
+      this._dirtyAll = true;
+      const items = this._dirty;
+      if (!items.length || !this._dirtyID) return true;
+      const id = ++this._dirtyID;
+      let item, mark, type, mdef, i, n, o;
+
+      for (i = 0, n = items.length; i < n; ++i) {
+        item = items[i];
+        mark = item.mark;
+
+        if (mark.marktype !== type) {
+          // memoize mark instance lookup
+          type = mark.marktype;
+          mdef = Marks[type];
+        }
+
+        if (mark.zdirty && mark.dirty !== id) {
+          this._dirtyAll = false;
+          dirtyParents(item, id);
+          mark.items.forEach(i => {
+            i.dirty = id;
+          });
+        }
+
+        if (mark.zdirty) continue; // handle in standard drawing pass
+
+        if (item.exit) {
+          // EXIT
+          if (mdef.nested && mark.items.length) {
+            // if nested mark with remaining points, update instead
+            o = mark.items[0];
+            if (o._svg) this._update(mdef, o._svg, o);
+          } else if (item._svg) {
+            // otherwise remove from DOM
+            o = item._svg.parentNode;
+            if (o) o.removeChild(item._svg);
+          }
+
+          item._svg = null;
+          continue;
+        }
+
+        item = mdef.nested ? mark.items[0] : item;
+        if (item._update === id) continue; // already visited
+
+        if (!item._svg || !item._svg.ownerSVGElement) {
+          // ENTER
+          this._dirtyAll = false;
+          dirtyParents(item, id);
+        } else {
+          // IN-PLACE UPDATE
+          this._update(mdef, item._svg, item);
+        }
+
+        item._update = id;
+      }
+
+      return !this._dirtyAll;
+    },
+
+    // -- Construct & maintain scenegraph to SVG mapping ---
+
+    /**
+     * Render a set of mark items.
+     * @param {SVGElement} el - The parent element in the SVG tree.
+     * @param {object} scene - The mark parent to render.
+     * @param {SVGElement} prev - The previous sibling in the SVG tree.
+     */
+    mark(el, scene, prev) {
+      if (!this.isDirty(scene)) return scene._svg;
+      const svg = this._svg,
+            mdef = Marks[scene.marktype],
+            events = scene.interactive === false ? 'none' : null,
+            isGroup = mdef.tag === 'g';
+      let sibling = null,
+          i = 0;
+      const parent = bind$1(scene, el, prev, 'g', svg);
+      parent.setAttribute('class', cssClass(scene)); // apply aria attributes to parent container element
+
+      const aria = ariaMarkAttributes(scene);
+
+      for (const key in aria) setAttribute(parent, key, aria[key]);
+
+      if (!isGroup) {
+        setAttribute(parent, 'pointer-events', events);
+      }
+
+      setAttribute(parent, 'clip-path', scene.clip ? clip$1$1(this, scene, scene.group) : null);
+
+      const process = item => {
+        const dirty = this.isDirty(item),
+              node = bind$1(item, parent, sibling, mdef.tag, svg);
+
+        if (dirty) {
+          this._update(mdef, node, item);
+
+          if (isGroup) recurse(this, node, item);
+        }
+
+        sibling = node;
+        ++i;
+      };
+
+      if (mdef.nested) {
+        if (scene.items.length) process(scene.items[0]);
+      } else {
+        visit(scene, process);
+      }
+
+      domClear(parent, i);
+      return parent;
+    },
+
+    /**
+     * Update the attributes of an SVG element for a mark item.
+     * @param {object} mdef - The mark definition object
+     * @param {SVGElement} el - The SVG element.
+     * @param {Item} item - The mark item.
+     */
+    _update(mdef, el, item) {
+      // set dom element and values cache
+      // provides access to emit method
+      element$1 = el;
+      values = el.__values__; // apply aria-specific properties
+
+      ariaItemAttributes(emit, item); // apply svg attributes
+
+      mdef.attr(emit, item, this); // some marks need special treatment
+
+      const extra = mark_extras[mdef.type];
+      if (extra) extra.call(this, mdef, el, item); // apply svg style attributes
+      // note: element state may have been modified by 'extra' method
+
+      if (element$1) this.style(element$1, item);
+    },
+
+    /**
+     * Update the presentation attributes of an SVG element for a mark item.
+     * @param {SVGElement} el - The SVG element.
+     * @param {Item} item - The mark item.
+     */
+    style(el, item) {
+      if (item == null) return;
+
+      for (const prop in styles) {
+        let value = prop === 'font' ? fontFamily(item) : item[prop];
+        if (value === values[prop]) continue;
+        const name = styles[prop];
+
+        if (value == null) {
+          el.removeAttribute(name);
+        } else {
+          if (isGradient(value)) {
+            value = gradientRef(value, this._defs.gradient, href());
+          }
+
+          el.setAttribute(name, value + '');
+        }
+
+        values[prop] = value;
+      }
+    },
+
+    /**
+     * Render SVG defs, as needed.
+     * Must be called *after* marks have been processed to ensure the
+     * collected state is current and accurate.
+     */
+    defs() {
+      const svg = this._svg,
+            defs = this._defs;
+      let el = defs.el,
+          index = 0;
+
+      for (const id in defs.gradient) {
+        if (!el) defs.el = el = domChild(svg, RootIndex + 1, 'defs', svgns);
+        index = updateGradient(el, defs.gradient[id], index);
+      }
+
+      for (const id in defs.clipping) {
+        if (!el) defs.el = el = domChild(svg, RootIndex + 1, 'defs', svgns);
+        index = updateClipping(el, defs.clipping[id], index);
+      } // clean-up
+
+
+      if (el) {
+        index === 0 ? (svg.removeChild(el), defs.el = null) : domClear(el, index);
+      }
+    },
+
+    /**
+     * Clear defs caches.
+     */
+    _clearDefs() {
+      const def = this._defs;
+      def.gradient = {};
+      def.clipping = {};
+    }
+
+  }); // mark ancestor chain with a dirty id
+
+  function dirtyParents(item, id) {
+    for (; item && item.dirty !== id; item = item.mark.group) {
+      item.dirty = id;
+
+      if (item.mark && item.mark.dirty !== id) {
+        item.mark.dirty = id;
+      } else return;
+    }
+  } // update gradient definitions
+
+
+  function updateGradient(el, grad, index) {
+    let i, n, stop;
+
+    if (grad.gradient === 'radial') {
+      // SVG radial gradients automatically transform to normalized bbox
+      // coordinates, in a way that is cumbersome to replicate in canvas.
+      // We wrap the radial gradient in a pattern element, allowing us to
+      // maintain a circular gradient that matches what canvas provides.
+      let pt = domChild(el, index++, 'pattern', svgns);
+      setAttributes(pt, {
+        id: patternPrefix + grad.id,
+        viewBox: '0,0,1,1',
+        width: '100%',
+        height: '100%',
+        preserveAspectRatio: 'xMidYMid slice'
+      });
+      pt = domChild(pt, 0, 'rect', svgns);
+      setAttributes(pt, {
+        width: 1,
+        height: 1,
+        fill: `url(${href()}#${grad.id})`
+      });
+      el = domChild(el, index++, 'radialGradient', svgns);
+      setAttributes(el, {
+        id: grad.id,
+        fx: grad.x1,
+        fy: grad.y1,
+        fr: grad.r1,
+        cx: grad.x2,
+        cy: grad.y2,
+        r: grad.r2
+      });
+    } else {
+      el = domChild(el, index++, 'linearGradient', svgns);
+      setAttributes(el, {
+        id: grad.id,
+        x1: grad.x1,
+        x2: grad.x2,
+        y1: grad.y1,
+        y2: grad.y2
+      });
+    }
+
+    for (i = 0, n = grad.stops.length; i < n; ++i) {
+      stop = domChild(el, i, 'stop', svgns);
+      stop.setAttribute('offset', grad.stops[i].offset);
+      stop.setAttribute('stop-color', grad.stops[i].color);
+    }
+
+    domClear(el, i);
+    return index;
+  } // update clipping path definitions
+
+
+  function updateClipping(el, clip, index) {
+    let mask;
+    el = domChild(el, index, 'clipPath', svgns);
+    el.setAttribute('id', clip.id);
+
+    if (clip.path) {
+      mask = domChild(el, 0, 'path', svgns);
+      mask.setAttribute('d', clip.path);
+    } else {
+      mask = domChild(el, 0, 'rect', svgns);
+      setAttributes(mask, {
+        x: 0,
+        y: 0,
+        width: clip.width,
+        height: clip.height
+      });
+    }
+
+    domClear(el, 1);
+    return index + 1;
+  } // Recursively process group contents.
+
+
+  function recurse(renderer, el, group) {
+    el = el.lastChild.previousSibling;
+    let prev,
+        idx = 0;
+    visit(group, item => {
+      prev = renderer.mark(el, item, prev);
+      ++idx;
+    }); // remove any extraneous DOM elements
+
+    domClear(el, 1 + idx);
+  } // Bind a scenegraph item to an SVG DOM element.
+  // Create new SVG elements as needed.
+
+
+  function bind$1(item, el, sibling, tag, svg) {
+    let node = item._svg,
+        doc; // create a new dom node if needed
+
+    if (!node) {
+      doc = el.ownerDocument;
+      node = domCreate(doc, tag, svgns);
+      item._svg = node;
+
+      if (item.mark) {
+        node.__data__ = item;
+        node.__values__ = {
+          fill: 'default'
+        }; // if group, create background, content, and foreground elements
+
+        if (tag === 'g') {
+          const bg = domCreate(doc, 'path', svgns);
+          node.appendChild(bg);
+          bg.__data__ = item;
+          const cg = domCreate(doc, 'g', svgns);
+          node.appendChild(cg);
+          cg.__data__ = item;
+          const fg = domCreate(doc, 'path', svgns);
+          node.appendChild(fg);
+          fg.__data__ = item;
+          fg.__values__ = {
+            fill: 'default'
+          };
+        }
+      }
+    } // (re-)insert if (a) not contained in SVG or (b) sibling order has changed
+
+
+    if (node.ownerSVGElement !== svg || siblingCheck(node, sibling)) {
+      el.insertBefore(node, sibling ? sibling.nextSibling : el.firstChild);
+    }
+
+    return node;
+  } // check if two nodes are ordered siblings
+
+
+  function siblingCheck(node, sibling) {
+    return node.parentNode && node.parentNode.childNodes.length > 1 && node.previousSibling != sibling; // treat null/undefined the same
+  } // -- Set attributes & styles on SVG elements ---
+
+
+  let element$1 = null,
+      // temp var for current SVG element
+  values = null; // temp var for current values hash
+  // Extra configuration for certain mark types
+
+  const mark_extras = {
+    group(mdef, el, item) {
+      const fg = element$1 = el.childNodes[2];
+      values = fg.__values__;
+      mdef.foreground(emit, item, this);
+      values = el.__values__; // use parent's values hash
+
+      element$1 = el.childNodes[1];
+      mdef.content(emit, item, this);
+      const bg = element$1 = el.childNodes[0];
+      mdef.background(emit, item, this);
+      const value = item.mark.interactive === false ? 'none' : null;
+
+      if (value !== values.events) {
+        setAttribute(fg, 'pointer-events', value);
+        setAttribute(bg, 'pointer-events', value);
+        values.events = value;
+      }
+
+      if (item.strokeForeground && item.stroke) {
+        const fill = item.fill;
+        setAttribute(fg, 'display', null); // set style of background
+
+        this.style(bg, item);
+        setAttribute(bg, 'stroke', null); // set style of foreground
+
+        if (fill) item.fill = null;
+        values = fg.__values__;
+        this.style(fg, item);
+        if (fill) item.fill = fill; // leave element null to prevent downstream styling
+
+        element$1 = null;
+      } else {
+        // ensure foreground is ignored
+        setAttribute(fg, 'display', 'none');
+      }
+    },
+
+    image(mdef, el, item) {
+      if (item.smooth === false) {
+        setStyle(el, 'image-rendering', 'optimizeSpeed');
+        setStyle(el, 'image-rendering', 'pixelated');
+      } else {
+        setStyle(el, 'image-rendering', null);
+      }
+    },
+
+    text(mdef, el, item) {
+      const tl = textLines(item);
+      let key, value, doc, lh;
+
+      if (isArray(tl)) {
+        // multi-line text
+        value = tl.map(_ => textValue(item, _));
+        key = value.join('\n'); // content cache key
+
+        if (key !== values.text) {
+          domClear(el, 0);
+          doc = el.ownerDocument;
+          lh = lineHeight(item);
+          value.forEach((t, i) => {
+            const ts = domCreate(doc, 'tspan', svgns);
+            ts.__data__ = item; // data binding
+
+            ts.textContent = t;
+
+            if (i) {
+              ts.setAttribute('x', 0);
+              ts.setAttribute('dy', lh);
+            }
+
+            el.appendChild(ts);
+          });
+          values.text = key;
+        }
+      } else {
+        // single-line text
+        value = textValue(item, tl);
+
+        if (value !== values.text) {
+          el.textContent = value;
+          values.text = value;
+        }
+      }
+
+      setAttribute(el, 'font-family', fontFamily(item));
+      setAttribute(el, 'font-size', fontSize(item) + 'px');
+      setAttribute(el, 'font-style', item.fontStyle);
+      setAttribute(el, 'font-variant', item.fontVariant);
+      setAttribute(el, 'font-weight', item.fontWeight);
+    }
+
+  };
+
+  function emit(name, value, ns) {
+    // early exit if value is unchanged
+    if (value === values[name]) return; // use appropriate method given namespace (ns)
+
+    if (ns) {
+      setAttributeNS(element$1, name, value, ns);
+    } else {
+      setAttribute(element$1, name, value);
+    } // note current value for future comparison
+
+
+    values[name] = value;
+  }
+
+  function setStyle(el, name, value) {
+    if (value !== values[name]) {
+      if (value == null) {
+        el.style.removeProperty(name);
+      } else {
+        el.style.setProperty(name, value + '');
+      }
+
+      values[name] = value;
+    }
+  }
+
+  function setAttributes(el, attrs) {
+    for (const key in attrs) {
+      setAttribute(el, key, attrs[key]);
+    }
+  }
+
+  function setAttribute(el, name, value) {
+    if (value != null) {
+      // if value is provided, update DOM attribute
+      el.setAttribute(name, value);
+    } else {
+      // else remove DOM attribute
+      el.removeAttribute(name);
+    }
+  }
+
+  function setAttributeNS(el, name, value, ns) {
+    if (value != null) {
+      // if value is provided, update DOM attribute
+      el.setAttributeNS(ns, name, value);
+    } else {
+      // else remove DOM attribute
+      el.removeAttributeNS(ns, name);
+    }
+  }
+
+  function href() {
+    let loc;
+    return typeof window === 'undefined' ? '' : (loc = window.location).hash ? loc.href.slice(0, -loc.hash.length) : loc.href;
+  }
+
+  function SVGStringRenderer(loader) {
+    Renderer.call(this, loader);
+    this._text = null;
+    this._defs = {
+      gradient: {},
+      clipping: {}
+    };
+  }
+
+  inherits(SVGStringRenderer, Renderer, {
+    /**
+     * Returns the rendered SVG text string,
+     * or null if rendering has not yet occurred.
+     */
+    svg() {
+      return this._text;
+    },
+
+    /**
+     * Internal rendering method.
+     * @param {object} scene - The root mark of a scenegraph to render.
+     */
+    _render(scene) {
+      const m = markup(); // svg tag
+
+      m.open('svg', extend$1({}, metadata, {
+        class: 'marks',
+        width: this._width * this._scale,
+        height: this._height * this._scale,
+        viewBox: `0 0 ${this._width} ${this._height}`
+      })); // background, if defined
+
+      const bg = this._bgcolor;
+
+      if (bg && bg !== 'transparent' && bg !== 'none') {
+        m.open('rect', {
+          width: this._width,
+          height: this._height,
+          fill: bg
+        }).close();
+      } // root content group
+
+
+      m.open('g', rootAttributes, {
+        transform: 'translate(' + this._origin + ')'
+      });
+      this.mark(m, scene);
+      m.close(); // </g>
+      // defs
+
+      this.defs(m); // get SVG text string
+
+      this._text = m.close() + '';
+      return this;
+    },
+
+    /**
+     * Render a set of mark items.
+     * @param {object} m - The markup context.
+     * @param {object} scene - The mark parent to render.
+     */
+    mark(m, scene) {
+      const mdef = Marks[scene.marktype],
+            tag = mdef.tag,
+            attrList = [ariaItemAttributes, mdef.attr]; // render opening group tag
+
+      m.open('g', {
+        'class': cssClass(scene),
+        'clip-path': scene.clip ? clip$1$1(this, scene, scene.group) : null
+      }, ariaMarkAttributes(scene), {
+        'pointer-events': tag !== 'g' && scene.interactive === false ? 'none' : null
+      }); // render contained elements
+
+      const process = item => {
+        const href = this.href(item);
+        if (href) m.open('a', href);
+        m.open(tag, this.attr(scene, item, attrList, tag !== 'g' ? tag : null));
+
+        if (tag === 'text') {
+          const tl = textLines(item);
+
+          if (isArray(tl)) {
+            // multi-line text
+            const attrs = {
+              x: 0,
+              dy: lineHeight(item)
+            };
+
+            for (let i = 0; i < tl.length; ++i) {
+              m.open('tspan', i ? attrs : null).text(textValue(item, tl[i])).close();
+            }
+          } else {
+            // single-line text
+            m.text(textValue(item, tl));
+          }
+        } else if (tag === 'g') {
+          const fore = item.strokeForeground,
+                fill = item.fill,
+                stroke = item.stroke;
+
+          if (fore && stroke) {
+            item.stroke = null;
+          }
+
+          m.open('path', this.attr(scene, item, mdef.background, 'bgrect')).close(); // recurse for group content
+
+          m.open('g', this.attr(scene, item, mdef.content));
+          visit(item, scene => this.mark(m, scene));
+          m.close();
+
+          if (fore && stroke) {
+            if (fill) item.fill = null;
+            item.stroke = stroke;
+            m.open('path', this.attr(scene, item, mdef.foreground, 'bgrect')).close();
+            if (fill) item.fill = fill;
+          } else {
+            m.open('path', this.attr(scene, item, mdef.foreground, 'bgfore')).close();
+          }
+        }
+
+        m.close(); // </tag>
+
+        if (href) m.close(); // </a>
+      };
+
+      if (mdef.nested) {
+        if (scene.items && scene.items.length) process(scene.items[0]);
+      } else {
+        visit(scene, process);
+      } // render closing group tag
+
+
+      return m.close(); // </g>
+    },
+
+    /**
+     * Get href attributes for a hyperlinked mark item.
+     * @param {Item} item - The mark item.
+     */
+    href(item) {
+      const href = item.href;
+      let attr;
+
+      if (href) {
+        if (attr = this._hrefs && this._hrefs[href]) {
+          return attr;
+        } else {
+          this.sanitizeURL(href).then(attr => {
+            // rewrite to use xlink namespace
+            attr['xlink:href'] = attr.href;
+            attr.href = null;
+            (this._hrefs || (this._hrefs = {}))[href] = attr;
+          });
+        }
+      }
+
+      return null;
+    },
+
+    /**
+     * Get an object of SVG attributes for a mark item.
+     * @param {object} scene - The mark parent.
+     * @param {Item} item - The mark item.
+     * @param {array|function} attrs - One or more attribute emitters.
+     * @param {string} tag - The tag being rendered.
+     */
+    attr(scene, item, attrs, tag) {
+      const object = {},
+            emit = (name, value, ns, prefixed) => {
+        object[prefixed || name] = value;
+      }; // apply mark specific attributes
+
+
+      if (Array.isArray(attrs)) {
+        attrs.forEach(fn => fn(emit, item, this));
+      } else {
+        attrs(emit, item, this);
+      } // apply style attributes
+
+
+      if (tag) {
+        style(object, item, scene, tag, this._defs);
+      }
+
+      return object;
+    },
+
+    /**
+     * Render SVG defs, as needed.
+     * Must be called *after* marks have been processed to ensure the
+     * collected state is current and accurate.
+     * @param {object} m - The markup context.
+     */
+    defs(m) {
+      const gradient = this._defs.gradient,
+            clipping = this._defs.clipping,
+            count = Object.keys(gradient).length + Object.keys(clipping).length;
+      if (count === 0) return; // nothing to do
+
+      m.open('defs');
+
+      for (const id in gradient) {
+        const def = gradient[id],
+              stops = def.stops;
+
+        if (def.gradient === 'radial') {
+          // SVG radial gradients automatically transform to normalized bbox
+          // coordinates, in a way that is cumbersome to replicate in canvas.
+          // We wrap the radial gradient in a pattern element, allowing us to
+          // maintain a circular gradient that matches what canvas provides.
+          m.open('pattern', {
+            id: patternPrefix + id,
+            viewBox: '0,0,1,1',
+            width: '100%',
+            height: '100%',
+            preserveAspectRatio: 'xMidYMid slice'
+          });
+          m.open('rect', {
+            width: '1',
+            height: '1',
+            fill: 'url(#' + id + ')'
+          }).close();
+          m.close(); // </pattern>
+
+          m.open('radialGradient', {
+            id: id,
+            fx: def.x1,
+            fy: def.y1,
+            fr: def.r1,
+            cx: def.x2,
+            cy: def.y2,
+            r: def.r2
+          });
+        } else {
+          m.open('linearGradient', {
+            id: id,
+            x1: def.x1,
+            x2: def.x2,
+            y1: def.y1,
+            y2: def.y2
+          });
+        }
+
+        for (let i = 0; i < stops.length; ++i) {
+          m.open('stop', {
+            offset: stops[i].offset,
+            'stop-color': stops[i].color
+          }).close();
+        }
+
+        m.close();
+      }
+
+      for (const id in clipping) {
+        const def = clipping[id];
+        m.open('clipPath', {
+          id: id
+        });
+
+        if (def.path) {
+          m.open('path', {
+            d: def.path
+          }).close();
+        } else {
+          m.open('rect', {
+            x: 0,
+            y: 0,
+            width: def.width,
+            height: def.height
+          }).close();
+        }
+
+        m.close();
+      }
+
+      m.close();
+    }
+
+  }); // Helper function for attr for style presentation attributes
+
+  function style(s, item, scene, tag, defs) {
+    if (item == null) return s;
+
+    if (tag === 'bgrect' && scene.interactive === false) {
+      s['pointer-events'] = 'none';
+    }
+
+    if (tag === 'bgfore') {
+      if (scene.interactive === false) {
+        s['pointer-events'] = 'none';
+      }
+
+      s.display = 'none';
+      if (item.fill !== null) return s;
+    }
+
+    if (tag === 'image' && item.smooth === false) {
+      s.style = 'image-rendering: optimizeSpeed; image-rendering: pixelated;';
+    }
+
+    if (tag === 'text') {
+      s['font-family'] = fontFamily(item);
+      s['font-size'] = fontSize(item) + 'px';
+      s['font-style'] = item.fontStyle;
+      s['font-variant'] = item.fontVariant;
+      s['font-weight'] = item.fontWeight;
+    }
+
+    for (const prop in styles) {
+      let value = item[prop];
+      const name = styles[prop];
+      if (value === 'transparent' && (name === 'fill' || name === 'stroke')) ;else if (value != null) {
+        if (isGradient(value)) {
+          value = gradientRef(value, defs.gradient, '');
+        }
+
+        s[name] = value;
+      }
+    }
+
+    return s;
+  }
+
+  const Canvas = 'canvas';
+  const PNG = 'png';
+  const SVG = 'svg';
+  const None$1 = 'none';
+  const RenderType = {
+    Canvas: Canvas,
+    PNG: PNG,
+    SVG: SVG,
+    None: None$1
+  };
+  const modules = {};
+  modules[Canvas] = modules[PNG] = {
+    renderer: CanvasRenderer,
+    headless: CanvasRenderer,
+    handler: CanvasHandler
+  };
+  modules[SVG] = {
+    renderer: SVGRenderer,
+    headless: SVGStringRenderer,
+    handler: SVGHandler
+  };
+  modules[None$1] = {};
+
+  function renderModule(name, _) {
+    name = String(name || '').toLowerCase();
+
+    if (arguments.length > 1) {
+      modules[name] = _;
+      return this;
+    } else {
+      return modules[name];
+    }
+  }
+
+  function intersect$2(scene, bounds, filter) {
+    const hits = [],
+          // intersection results
+    box = new Bounds().union(bounds),
+          // defensive copy
+    type = scene.marktype;
+    return type ? intersectMark(scene, box, filter, hits) : type === 'group' ? intersectGroup(scene, box, filter, hits) : error('Intersect scene must be mark node or group item.');
+  }
+
+  function intersectMark(mark, box, filter, hits) {
+    if (visitMark(mark, box, filter)) {
+      const items = mark.items,
+            type = mark.marktype,
+            n = items.length;
+      let i = 0;
+
+      if (type === 'group') {
+        for (; i < n; ++i) {
+          intersectGroup(items[i], box, filter, hits);
+        }
+      } else {
+        for (const test = Marks[type].isect; i < n; ++i) {
+          const item = items[i];
+          if (intersectItem(item, box, test)) hits.push(item);
+        }
+      }
+    }
+
+    return hits;
+  }
+
+  function visitMark(mark, box, filter) {
+    // process if bounds intersect and if
+    // (1) mark is a group mark (so we must recurse), or
+    // (2) mark is interactive and passes filter
+    return mark.bounds && box.intersects(mark.bounds) && (mark.marktype === 'group' || mark.interactive !== false && (!filter || filter(mark)));
+  }
+
+  function intersectGroup(group, box, filter, hits) {
+    // test intersect against group
+    // skip groups by default unless filter says otherwise
+    if (filter && filter(group.mark) && intersectItem(group, box, Marks.group.isect)) {
+      hits.push(group);
+    } // recursively test children marks
+    // translate box to group coordinate space
+
+
+    const marks = group.items,
+          n = marks && marks.length;
+
+    if (n) {
+      const x = group.x || 0,
+            y = group.y || 0;
+      box.translate(-x, -y);
+
+      for (let i = 0; i < n; ++i) {
+        intersectMark(marks[i], box, filter, hits);
+      }
+
+      box.translate(x, y);
+    }
+
+    return hits;
+  }
+
+  function intersectItem(item, box, test) {
+    // test bounds enclosure, bounds intersection, then detailed test
+    const bounds = item.bounds;
+    return box.encloses(bounds) || box.intersects(bounds) && test(item, box);
+  }
+
+  const clipBounds = new Bounds();
+
+  function boundClip(mark) {
+    const clip = mark.clip;
+
+    if (isFunction(clip)) {
+      clip(boundContext(clipBounds.clear()));
+    } else if (clip) {
+      clipBounds.set(0, 0, mark.group.width, mark.group.height);
+    } else return;
+
+    mark.bounds.intersect(clipBounds);
+  }
+
+  const TOLERANCE = 1e-9;
+
+  function sceneEqual(a, b, key) {
+    return a === b ? true : key === 'path' ? pathEqual(a, b) : a instanceof Date && b instanceof Date ? +a === +b : isNumber$1(a) && isNumber$1(b) ? Math.abs(a - b) <= TOLERANCE : !a || !b || !isObject(a) && !isObject(b) ? a == b : objectEqual(a, b);
+  }
+
+  function pathEqual(a, b) {
+    return sceneEqual(pathParse(a), pathParse(b));
+  }
+
+  function objectEqual(a, b) {
+    var ka = Object.keys(a),
+        kb = Object.keys(b),
+        key,
+        i;
+    if (ka.length !== kb.length) return false;
+    ka.sort();
+    kb.sort();
+
+    for (i = ka.length - 1; i >= 0; i--) {
+      if (ka[i] != kb[i]) return false;
+    }
+
+    for (i = ka.length - 1; i >= 0; i--) {
+      key = ka[i];
+      if (!sceneEqual(a[key], b[key], key)) return false;
+    }
+
+    return typeof a === typeof b;
+  }
+
+  function resetSVGDefIds() {
+    resetSVGClipId();
+    resetSVGGradientId();
+  }
+
+  const Top$1 = 'top';
+  const Left$1 = 'left';
+  const Right$1 = 'right';
+  const Bottom$1 = 'bottom';
+  const TopLeft = 'top-left';
+  const TopRight = 'top-right';
+  const BottomLeft = 'bottom-left';
+  const BottomRight = 'bottom-right';
+  const Start$1 = 'start';
+  const Middle$1 = 'middle';
+  const End$1 = 'end';
+  const X = 'x';
+  const Y = 'y';
+  const Group = 'group';
+  const AxisRole$1 = 'axis';
+  const TitleRole$1 = 'title';
+  const FrameRole$1 = 'frame';
+  const ScopeRole$1 = 'scope';
+  const LegendRole$1 = 'legend';
+  const RowHeader = 'row-header';
+  const RowFooter = 'row-footer';
+  const RowTitle = 'row-title';
+  const ColHeader = 'column-header';
+  const ColFooter = 'column-footer';
+  const ColTitle = 'column-title';
+  const Padding$1 = 'padding';
+  const Symbols$1 = 'symbol';
+  const Fit = 'fit';
+  const FitX = 'fit-x';
+  const FitY = 'fit-y';
+  const Pad = 'pad';
+  const None = 'none';
+  const All = 'all';
+  const Each = 'each';
+  const Flush = 'flush';
+  const Column = 'column';
+  const Row = 'row';
+  /**
+   * Calculate bounding boxes for scenegraph items.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {object} params.mark - The scenegraph mark instance to bound.
+   */
+
+  function Bound$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  inherits(Bound$1, Transform, {
+    transform(_, pulse) {
+      const view = pulse.dataflow,
+            mark = _.mark,
+            type = mark.marktype,
+            entry = Marks[type],
+            bound = entry.bound;
+      let markBounds = mark.bounds,
+          rebound;
+
+      if (entry.nested) {
+        // multi-item marks have a single bounds instance
+        if (mark.items.length) view.dirty(mark.items[0]);
+        markBounds = boundItem(mark, bound);
+        mark.items.forEach(item => {
+          item.bounds.clear().union(markBounds);
+        });
+      } else if (type === Group || _.modified()) {
+        // operator parameters modified -> re-bound all items
+        // updates group bounds in response to modified group content
+        pulse.visit(pulse.MOD, item => view.dirty(item));
+        markBounds.clear();
+        mark.items.forEach(item => markBounds.union(boundItem(item, bound))); // force reflow for axes/legends/titles to propagate any layout changes
+
+        switch (mark.role) {
+          case AxisRole$1:
+          case LegendRole$1:
+          case TitleRole$1:
+            pulse.reflow();
+        }
+      } else {
+        // incrementally update bounds, re-bound mark as needed
+        rebound = pulse.changed(pulse.REM);
+        pulse.visit(pulse.ADD, item => {
+          markBounds.union(boundItem(item, bound));
+        });
+        pulse.visit(pulse.MOD, item => {
+          rebound = rebound || markBounds.alignsWith(item.bounds);
+          view.dirty(item);
+          markBounds.union(boundItem(item, bound));
+        });
+
+        if (rebound) {
+          markBounds.clear();
+          mark.items.forEach(item => markBounds.union(item.bounds));
+        }
+      } // ensure mark bounds do not exceed any clipping region
+
+
+      boundClip(mark);
+      return pulse.modifies('bounds');
+    }
+
+  });
+
+  function boundItem(item, bound, opt) {
+    return bound(item.bounds.clear(), item, opt);
+  }
+
+  const COUNTER_NAME = ':vega_identifier:';
+  /**
+   * Adds a unique identifier to all added tuples.
+   * This transform creates a new signal that serves as an id counter.
+   * As a result, the id counter is shared across all instances of this
+   * transform, generating unique ids across multiple data streams. In
+   * addition, this signal value can be included in a snapshot of the
+   * dataflow state, enabling correct resumption of id allocation.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {string} params.as - The field name for the generated identifier.
+   */
+
+  function Identifier$1(params) {
+    Transform.call(this, 0, params);
+  }
+
+  Identifier$1.Definition = {
+    'type': 'Identifier',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'as',
+      'type': 'string',
+      'required': true
+    }]
+  };
+  inherits(Identifier$1, Transform, {
+    transform(_, pulse) {
+      const counter = getCounter(pulse.dataflow),
+            as = _.as;
+      let id = counter.value;
+      pulse.visit(pulse.ADD, t => t[as] = t[as] || ++id);
+      counter.set(this.value = id);
+      return pulse;
+    }
+
+  });
+
+  function getCounter(view) {
+    return view._signals[COUNTER_NAME] || (view._signals[COUNTER_NAME] = view.add(0));
+  }
+  /**
+   * Bind scenegraph items to a scenegraph mark instance.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {object} params.markdef - The mark definition for creating the mark.
+   *   This is an object of legal scenegraph mark properties which *must* include
+   *   the 'marktype' property.
+   */
+
+
+  function Mark$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  inherits(Mark$1, Transform, {
+    transform(_, pulse) {
+      let mark = this.value; // acquire mark on first invocation, bind context and group
+
+      if (!mark) {
+        mark = pulse.dataflow.scenegraph().mark(_.markdef, lookup$1$1(_), _.index);
+        mark.group.context = _.context;
+        if (!_.context.group) _.context.group = mark.group;
+        mark.source = this.source; // point to upstream collector
+
+        mark.clip = _.clip;
+        mark.interactive = _.interactive;
+        this.value = mark;
+      } // initialize entering items
+
+
+      const Init = mark.marktype === Group ? GroupItem : Item;
+      pulse.visit(pulse.ADD, item => Init.call(item, mark)); // update clipping and/or interactive status
+
+      if (_.modified('clip') || _.modified('interactive')) {
+        mark.clip = _.clip;
+        mark.interactive = !!_.interactive;
+        mark.zdirty = true; // force scenegraph re-eval
+
+        pulse.reflow();
+      } // bind items array to scenegraph mark
+
+
+      mark.items = pulse.source;
+      return pulse;
+    }
+
+  });
+
+  function lookup$1$1(_) {
+    const g = _.groups,
+          p = _.parent;
+    return g && g.size === 1 ? g.get(Object.keys(g.object)[0]) : g && p ? g.lookup(p) : null;
+  }
+  /**
+   * Analyze items for overlap, changing opacity to hide items with
+   * overlapping bounding boxes. This transform will preserve at least
+   * two items (e.g., first and last) even if overlap persists.
+   * @param {object} params - The parameters for this operator.
+   * @param {function(*,*): number} [params.sort] - A comparator
+   *   function for sorting items.
+   * @param {object} [params.method] - The overlap removal method to apply.
+   *   One of 'parity' (default, hide every other item until there is no
+   *   more overlap) or 'greedy' (sequentially scan and hide and items that
+   *   overlap with the last visible item).
+   * @param {object} [params.boundScale] - A scale whose range should be used
+   *   to bound the items. Items exceeding the bounds of the scale range
+   *   will be treated as overlapping. If null or undefined, no bounds check
+   *   will be applied.
+   * @param {object} [params.boundOrient] - The orientation of the scale
+   *   (top, bottom, left, or right) used to bound items. This parameter is
+   *   ignored if boundScale is null or undefined.
+   * @param {object} [params.boundTolerance] - The tolerance in pixels for
+   *   bound inclusion testing (default 1). This specifies by how many pixels
+   *   an item's bounds may exceed the scale range bounds and not be culled.
+   * @constructor
+   */
+
+
+  function Overlap$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  const methods = {
+    parity: items => items.filter((item, i) => i % 2 ? item.opacity = 0 : 1),
+    greedy: (items, sep) => {
+      let a;
+      return items.filter((b, i) => !i || !intersect$1(a.bounds, b.bounds, sep) ? (a = b, 1) : b.opacity = 0);
+    }
+  }; // compute bounding box intersection
+  // including padding pixels of separation
+
+  const intersect$1 = (a, b, sep) => sep > Math.max(b.x1 - a.x2, a.x1 - b.x2, b.y1 - a.y2, a.y1 - b.y2);
+
+  const hasOverlap = (items, pad) => {
+    for (var i = 1, n = items.length, a = items[0].bounds, b; i < n; a = b, ++i) {
+      if (intersect$1(a, b = items[i].bounds, pad)) return true;
+    }
+  };
+
+  const hasBounds = item => {
+    const b = item.bounds;
+    return b.width() > 1 && b.height() > 1;
+  };
+
+  const boundTest = (scale, orient, tolerance) => {
+    var range = scale.range(),
+        b = new Bounds();
+
+    if (orient === Top$1 || orient === Bottom$1) {
+      b.set(range[0], -Infinity, range[1], +Infinity);
+    } else {
+      b.set(-Infinity, range[0], +Infinity, range[1]);
+    }
+
+    b.expand(tolerance || 1);
+    return item => b.encloses(item.bounds);
+  }; // reset all items to be fully opaque
+
+
+  const reset = source => {
+    source.forEach(item => item.opacity = 1);
+    return source;
+  }; // add all tuples to mod, fork pulse if parameters were modified
+  // fork prevents cross-stream tuple pollution (e.g., pulse from scale)
+
+
+  const reflow = (pulse, _) => pulse.reflow(_.modified()).modifies('opacity');
+
+  inherits(Overlap$1, Transform, {
+    transform(_, pulse) {
+      const reduce = methods[_.method] || methods.parity,
+            sep = _.separation || 0;
+      let source = pulse.materialize(pulse.SOURCE).source,
+          items,
+          test;
+      if (!source || !source.length) return;
+
+      if (!_.method) {
+        // early exit if method is falsy
+        if (_.modified('method')) {
+          reset(source);
+          pulse = reflow(pulse, _);
+        }
+
+        return pulse;
+      } // skip labels with no content
+
+
+      source = source.filter(hasBounds); // early exit, nothing to do
+
+      if (!source.length) return;
+
+      if (_.sort) {
+        source = source.slice().sort(_.sort);
+      }
+
+      items = reset(source);
+      pulse = reflow(pulse, _);
+
+      if (items.length >= 3 && hasOverlap(items, sep)) {
+        do {
+          items = reduce(items, sep);
+        } while (items.length >= 3 && hasOverlap(items, sep));
+
+        if (items.length < 3 && !peek$1(source).opacity) {
+          if (items.length > 1) peek$1(items).opacity = 0;
+          peek$1(source).opacity = 1;
+        }
+      }
+
+      if (_.boundScale && _.boundTolerance >= 0) {
+        test = boundTest(_.boundScale, _.boundOrient, +_.boundTolerance);
+        source.forEach(item => {
+          if (!test(item)) item.opacity = 0;
+        });
+      } // re-calculate mark bounds
+
+
+      const bounds = items[0].mark.bounds.clear();
+      source.forEach(item => {
+        if (item.opacity) bounds.union(item.bounds);
+      });
+      return pulse;
+    }
+
+  });
+  /**
+   * Queue modified scenegraph items for rendering.
+   * @constructor
+   */
+
+  function Render$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  inherits(Render$1, Transform, {
+    transform(_, pulse) {
+      const view = pulse.dataflow;
+      pulse.visit(pulse.ALL, item => view.dirty(item)); // set z-index dirty flag as needed
+
+      if (pulse.fields && pulse.fields['zindex']) {
+        const item = pulse.source && pulse.source[0];
+        if (item) item.mark.zdirty = true;
+      }
+    }
+
+  });
+  const tempBounds = new Bounds();
+
+  function set$2(item, property, value) {
+    return item[property] === value ? 0 : (item[property] = value, 1);
+  }
+
+  function isYAxis(mark) {
+    var orient = mark.items[0].orient;
+    return orient === Left$1 || orient === Right$1;
+  }
+
+  function axisIndices(datum) {
+    let index = +datum.grid;
+    return [datum.ticks ? index++ : -1, // ticks index
+    datum.labels ? index++ : -1, // labels index
+    index + +datum.domain // title index
+    ];
+  }
+
+  function axisLayout(view, axis, width, height) {
+    var item = axis.items[0],
+        datum = item.datum,
+        delta = item.translate != null ? item.translate : 0.5,
+        orient = item.orient,
+        indices = axisIndices(datum),
+        range = item.range,
+        offset = item.offset,
+        position = item.position,
+        minExtent = item.minExtent,
+        maxExtent = item.maxExtent,
+        title = datum.title && item.items[indices[2]].items[0],
+        titlePadding = item.titlePadding,
+        bounds = item.bounds,
+        dl = title && multiLineOffset(title),
+        x = 0,
+        y = 0,
+        i,
+        s;
+    tempBounds.clear().union(bounds);
+    bounds.clear();
+    if ((i = indices[0]) > -1) bounds.union(item.items[i].bounds);
+    if ((i = indices[1]) > -1) bounds.union(item.items[i].bounds); // position axis group and title
+
+    switch (orient) {
+      case Top$1:
+        x = position || 0;
+        y = -offset;
+        s = Math.max(minExtent, Math.min(maxExtent, -bounds.y1));
+        bounds.add(0, -s).add(range, 0);
+        if (title) axisTitleLayout(view, title, s, titlePadding, dl, 0, -1, bounds);
+        break;
+
+      case Left$1:
+        x = -offset;
+        y = position || 0;
+        s = Math.max(minExtent, Math.min(maxExtent, -bounds.x1));
+        bounds.add(-s, 0).add(0, range);
+        if (title) axisTitleLayout(view, title, s, titlePadding, dl, 1, -1, bounds);
+        break;
+
+      case Right$1:
+        x = width + offset;
+        y = position || 0;
+        s = Math.max(minExtent, Math.min(maxExtent, bounds.x2));
+        bounds.add(0, 0).add(s, range);
+        if (title) axisTitleLayout(view, title, s, titlePadding, dl, 1, 1, bounds);
+        break;
+
+      case Bottom$1:
+        x = position || 0;
+        y = height + offset;
+        s = Math.max(minExtent, Math.min(maxExtent, bounds.y2));
+        bounds.add(0, 0).add(range, s);
+        if (title) axisTitleLayout(view, title, s, titlePadding, 0, 0, 1, bounds);
+        break;
+
+      default:
+        x = item.x;
+        y = item.y;
+    } // update bounds
+
+
+    boundStroke(bounds.translate(x, y), item);
+
+    if (set$2(item, 'x', x + delta) | set$2(item, 'y', y + delta)) {
+      item.bounds = tempBounds;
+      view.dirty(item);
+      item.bounds = bounds;
+      view.dirty(item);
+    }
+
+    return item.mark.bounds.clear().union(bounds);
+  }
+
+  function axisTitleLayout(view, title, offset, pad, dl, isYAxis, sign, bounds) {
+    const b = title.bounds;
+
+    if (title.auto) {
+      const v = sign * (offset + dl + pad);
+      let dx = 0,
+          dy = 0;
+      view.dirty(title);
+      isYAxis ? dx = (title.x || 0) - (title.x = v) : dy = (title.y || 0) - (title.y = v);
+      title.mark.bounds.clear().union(b.translate(-dx, -dy));
+      view.dirty(title);
+    }
+
+    bounds.union(b);
+  }
+
+  const min = (a, b) => Math.floor(Math.min(a, b));
+
+  const max = (a, b) => Math.ceil(Math.max(a, b));
+
+  function gridLayoutGroups(group) {
+    var groups = group.items,
+        n = groups.length,
+        i = 0,
+        mark,
+        items;
+    const views = {
+      marks: [],
+      rowheaders: [],
+      rowfooters: [],
+      colheaders: [],
+      colfooters: [],
+      rowtitle: null,
+      coltitle: null
+    }; // layout axes, gather legends, collect bounds
+
+    for (; i < n; ++i) {
+      mark = groups[i];
+      items = mark.items;
+
+      if (mark.marktype === Group) {
+        switch (mark.role) {
+          case AxisRole$1:
+          case LegendRole$1:
+          case TitleRole$1:
+            break;
+
+          case RowHeader:
+            views.rowheaders.push(...items);
+            break;
+
+          case RowFooter:
+            views.rowfooters.push(...items);
+            break;
+
+          case ColHeader:
+            views.colheaders.push(...items);
+            break;
+
+          case ColFooter:
+            views.colfooters.push(...items);
+            break;
+
+          case RowTitle:
+            views.rowtitle = items[0];
+            break;
+
+          case ColTitle:
+            views.coltitle = items[0];
+            break;
+
+          default:
+            views.marks.push(...items);
+        }
+      }
+    }
+
+    return views;
+  }
+
+  function bboxFlush(item) {
+    return new Bounds().set(0, 0, item.width || 0, item.height || 0);
+  }
+
+  function bboxFull(item) {
+    const b = item.bounds.clone();
+    return b.empty() ? b.set(0, 0, 0, 0) : b.translate(-(item.x || 0), -(item.y || 0));
+  }
+
+  function get$1(opt, key, d) {
+    const v = isObject(opt) ? opt[key] : opt;
+    return v != null ? v : d !== undefined ? d : 0;
+  }
+
+  function offsetValue$1(v) {
+    return v < 0 ? Math.ceil(-v) : 0;
+  }
+
+  function gridLayout(view, groups, opt) {
+    var dirty = !opt.nodirty,
+        bbox = opt.bounds === Flush ? bboxFlush : bboxFull,
+        bounds = tempBounds.set(0, 0, 0, 0),
+        alignCol = get$1(opt.align, Column),
+        alignRow = get$1(opt.align, Row),
+        padCol = get$1(opt.padding, Column),
+        padRow = get$1(opt.padding, Row),
+        ncols = opt.columns || groups.length,
+        nrows = ncols <= 0 ? 1 : Math.ceil(groups.length / ncols),
+        n = groups.length,
+        xOffset = Array(n),
+        xExtent = Array(ncols),
+        xMax = 0,
+        yOffset = Array(n),
+        yExtent = Array(nrows),
+        yMax = 0,
+        dx = Array(n),
+        dy = Array(n),
+        boxes = Array(n),
+        m,
+        i,
+        c,
+        r,
+        b,
+        g,
+        px,
+        py,
+        x,
+        y,
+        offset;
+
+    for (i = 0; i < ncols; ++i) xExtent[i] = 0;
+
+    for (i = 0; i < nrows; ++i) yExtent[i] = 0; // determine offsets for each group
+
+
+    for (i = 0; i < n; ++i) {
+      g = groups[i];
+      b = boxes[i] = bbox(g);
+      g.x = g.x || 0;
+      dx[i] = 0;
+      g.y = g.y || 0;
+      dy[i] = 0;
+      c = i % ncols;
+      r = ~~(i / ncols);
+      xMax = Math.max(xMax, px = Math.ceil(b.x2));
+      yMax = Math.max(yMax, py = Math.ceil(b.y2));
+      xExtent[c] = Math.max(xExtent[c], px);
+      yExtent[r] = Math.max(yExtent[r], py);
+      xOffset[i] = padCol + offsetValue$1(b.x1);
+      yOffset[i] = padRow + offsetValue$1(b.y1);
+      if (dirty) view.dirty(groups[i]);
+    } // set initial alignment offsets
+
+
+    for (i = 0; i < n; ++i) {
+      if (i % ncols === 0) xOffset[i] = 0;
+      if (i < ncols) yOffset[i] = 0;
+    } // enforce column alignment constraints
+
+
+    if (alignCol === Each) {
+      for (c = 1; c < ncols; ++c) {
+        for (offset = 0, i = c; i < n; i += ncols) {
+          if (offset < xOffset[i]) offset = xOffset[i];
+        }
+
+        for (i = c; i < n; i += ncols) {
+          xOffset[i] = offset + xExtent[c - 1];
+        }
+      }
+    } else if (alignCol === All) {
+      for (offset = 0, i = 0; i < n; ++i) {
+        if (i % ncols && offset < xOffset[i]) offset = xOffset[i];
+      }
+
+      for (i = 0; i < n; ++i) {
+        if (i % ncols) xOffset[i] = offset + xMax;
+      }
+    } else {
+      for (alignCol = false, c = 1; c < ncols; ++c) {
+        for (i = c; i < n; i += ncols) {
+          xOffset[i] += xExtent[c - 1];
+        }
+      }
+    } // enforce row alignment constraints
+
+
+    if (alignRow === Each) {
+      for (r = 1; r < nrows; ++r) {
+        for (offset = 0, i = r * ncols, m = i + ncols; i < m; ++i) {
+          if (offset < yOffset[i]) offset = yOffset[i];
+        }
+
+        for (i = r * ncols; i < m; ++i) {
+          yOffset[i] = offset + yExtent[r - 1];
+        }
+      }
+    } else if (alignRow === All) {
+      for (offset = 0, i = ncols; i < n; ++i) {
+        if (offset < yOffset[i]) offset = yOffset[i];
+      }
+
+      for (i = ncols; i < n; ++i) {
+        yOffset[i] = offset + yMax;
+      }
+    } else {
+      for (alignRow = false, r = 1; r < nrows; ++r) {
+        for (i = r * ncols, m = i + ncols; i < m; ++i) {
+          yOffset[i] += yExtent[r - 1];
+        }
+      }
+    } // perform horizontal grid layout
+
+
+    for (x = 0, i = 0; i < n; ++i) {
+      x = xOffset[i] + (i % ncols ? x : 0);
+      dx[i] += x - groups[i].x;
+    } // perform vertical grid layout
+
+
+    for (c = 0; c < ncols; ++c) {
+      for (y = 0, i = c; i < n; i += ncols) {
+        y += yOffset[i];
+        dy[i] += y - groups[i].y;
+      }
+    } // perform horizontal centering
+
+
+    if (alignCol && get$1(opt.center, Column) && nrows > 1) {
+      for (i = 0; i < n; ++i) {
+        b = alignCol === All ? xMax : xExtent[i % ncols];
+        x = b - boxes[i].x2 - groups[i].x - dx[i];
+        if (x > 0) dx[i] += x / 2;
+      }
+    } // perform vertical centering
+
+
+    if (alignRow && get$1(opt.center, Row) && ncols !== 1) {
+      for (i = 0; i < n; ++i) {
+        b = alignRow === All ? yMax : yExtent[~~(i / ncols)];
+        y = b - boxes[i].y2 - groups[i].y - dy[i];
+        if (y > 0) dy[i] += y / 2;
+      }
+    } // position grid relative to anchor
+
+
+    for (i = 0; i < n; ++i) {
+      bounds.union(boxes[i].translate(dx[i], dy[i]));
+    }
+
+    x = get$1(opt.anchor, X);
+    y = get$1(opt.anchor, Y);
+
+    switch (get$1(opt.anchor, Column)) {
+      case End$1:
+        x -= bounds.width();
+        break;
+
+      case Middle$1:
+        x -= bounds.width() / 2;
+    }
+
+    switch (get$1(opt.anchor, Row)) {
+      case End$1:
+        y -= bounds.height();
+        break;
+
+      case Middle$1:
+        y -= bounds.height() / 2;
+    }
+
+    x = Math.round(x);
+    y = Math.round(y); // update mark positions, bounds, dirty
+
+    bounds.clear();
+
+    for (i = 0; i < n; ++i) {
+      groups[i].mark.bounds.clear();
+    }
+
+    for (i = 0; i < n; ++i) {
+      g = groups[i];
+      g.x += dx[i] += x;
+      g.y += dy[i] += y;
+      bounds.union(g.mark.bounds.union(g.bounds.translate(dx[i], dy[i])));
+      if (dirty) view.dirty(g);
+    }
+
+    return bounds;
+  }
+
+  function trellisLayout(view, group, opt) {
+    var views = gridLayoutGroups(group),
+        groups = views.marks,
+        bbox = opt.bounds === Flush ? boundFlush : boundFull,
+        off = opt.offset,
+        ncols = opt.columns || groups.length,
+        nrows = ncols <= 0 ? 1 : Math.ceil(groups.length / ncols),
+        cells = nrows * ncols,
+        x,
+        y,
+        x2,
+        y2,
+        anchor,
+        band,
+        offset; // -- initial grid layout
+
+    const bounds = gridLayout(view, groups, opt);
+    if (bounds.empty()) bounds.set(0, 0, 0, 0); // empty grid
+    // -- layout grid headers and footers --
+    // perform row header layout
+
+    if (views.rowheaders) {
+      band = get$1(opt.headerBand, Row, null);
+      x = layoutHeaders(view, views.rowheaders, groups, ncols, nrows, -get$1(off, 'rowHeader'), min, 0, bbox, 'x1', 0, ncols, 1, band);
+    } // perform column header layout
+
+
+    if (views.colheaders) {
+      band = get$1(opt.headerBand, Column, null);
+      y = layoutHeaders(view, views.colheaders, groups, ncols, ncols, -get$1(off, 'columnHeader'), min, 1, bbox, 'y1', 0, 1, ncols, band);
+    } // perform row footer layout
+
+
+    if (views.rowfooters) {
+      band = get$1(opt.footerBand, Row, null);
+      x2 = layoutHeaders(view, views.rowfooters, groups, ncols, nrows, get$1(off, 'rowFooter'), max, 0, bbox, 'x2', ncols - 1, ncols, 1, band);
+    } // perform column footer layout
+
+
+    if (views.colfooters) {
+      band = get$1(opt.footerBand, Column, null);
+      y2 = layoutHeaders(view, views.colfooters, groups, ncols, ncols, get$1(off, 'columnFooter'), max, 1, bbox, 'y2', cells - ncols, 1, ncols, band);
+    } // perform row title layout
+
+
+    if (views.rowtitle) {
+      anchor = get$1(opt.titleAnchor, Row);
+      offset = get$1(off, 'rowTitle');
+      offset = anchor === End$1 ? x2 + offset : x - offset;
+      band = get$1(opt.titleBand, Row, 0.5);
+      layoutTitle(view, views.rowtitle, offset, 0, bounds, band);
+    } // perform column title layout
+
+
+    if (views.coltitle) {
+      anchor = get$1(opt.titleAnchor, Column);
+      offset = get$1(off, 'columnTitle');
+      offset = anchor === End$1 ? y2 + offset : y - offset;
+      band = get$1(opt.titleBand, Column, 0.5);
+      layoutTitle(view, views.coltitle, offset, 1, bounds, band);
+    }
+  }
+
+  function boundFlush(item, field) {
+    return field === 'x1' ? item.x || 0 : field === 'y1' ? item.y || 0 : field === 'x2' ? (item.x || 0) + (item.width || 0) : field === 'y2' ? (item.y || 0) + (item.height || 0) : undefined;
+  }
+
+  function boundFull(item, field) {
+    return item.bounds[field];
+  }
+
+  function layoutHeaders(view, headers, groups, ncols, limit, offset, agg, isX, bound, bf, start, stride, back, band) {
+    var n = groups.length,
+        init = 0,
+        edge = 0,
+        i,
+        j,
+        k,
+        m,
+        b,
+        h,
+        g,
+        x,
+        y; // if no groups, early exit and return 0
+
+    if (!n) return init; // compute margin
+
+    for (i = start; i < n; i += stride) {
+      if (groups[i]) init = agg(init, bound(groups[i], bf));
+    } // if no headers, return margin calculation
+
+
+    if (!headers.length) return init; // check if number of headers exceeds number of rows or columns
+
+    if (headers.length > limit) {
+      view.warn('Grid headers exceed limit: ' + limit);
+      headers = headers.slice(0, limit);
+    } // apply offset
+
+
+    init += offset; // clear mark bounds for all headers
+
+    for (j = 0, m = headers.length; j < m; ++j) {
+      view.dirty(headers[j]);
+      headers[j].mark.bounds.clear();
+    } // layout each header
+
+
+    for (i = start, j = 0, m = headers.length; j < m; ++j, i += stride) {
+      h = headers[j];
+      b = h.mark.bounds; // search for nearest group to align to
+      // necessary if table has empty cells
+
+      for (k = i; k >= 0 && (g = groups[k]) == null; k -= back); // assign coordinates and update bounds
+
+
+      if (isX) {
+        x = band == null ? g.x : Math.round(g.bounds.x1 + band * g.bounds.width());
+        y = init;
+      } else {
+        x = init;
+        y = band == null ? g.y : Math.round(g.bounds.y1 + band * g.bounds.height());
+      }
+
+      b.union(h.bounds.translate(x - (h.x || 0), y - (h.y || 0)));
+      h.x = x;
+      h.y = y;
+      view.dirty(h); // update current edge of layout bounds
+
+      edge = agg(edge, b[bf]);
+    }
+
+    return edge;
+  }
+
+  function layoutTitle(view, g, offset, isX, bounds, band) {
+    if (!g) return;
+    view.dirty(g); // compute title coordinates
+
+    var x = offset,
+        y = offset;
+    isX ? x = Math.round(bounds.x1 + band * bounds.width()) : y = Math.round(bounds.y1 + band * bounds.height()); // assign coordinates and update bounds
+
+    g.bounds.translate(x - (g.x || 0), y - (g.y || 0));
+    g.mark.bounds.clear().union(g.bounds);
+    g.x = x;
+    g.y = y; // queue title for redraw
+
+    view.dirty(g);
+  }
+
+  function lookup$3(config, orient) {
+    const opt = config[orient] || {};
+    return (key, d) => opt[key] != null ? opt[key] : config[key] != null ? config[key] : d;
+  } // if legends specify offset directly, use the maximum specified value
+
+
+  function offsets(legends, value) {
+    let max = -Infinity;
+    legends.forEach(item => {
+      if (item.offset != null) max = Math.max(max, item.offset);
+    });
+    return max > -Infinity ? max : value;
+  }
+
+  function legendParams(g, orient, config, xb, yb, w, h) {
+    const _ = lookup$3(config, orient),
+          offset = offsets(g, _('offset', 0)),
+          anchor = _('anchor', Start$1),
+          mult = anchor === End$1 ? 1 : anchor === Middle$1 ? 0.5 : 0;
+
+    const p = {
+      align: Each,
+      bounds: _('bounds', Flush),
+      columns: _('direction') === 'vertical' ? 1 : g.length,
+      padding: _('margin', 8),
+      center: _('center'),
+      nodirty: true
+    };
+
+    switch (orient) {
+      case Left$1:
+        p.anchor = {
+          x: Math.floor(xb.x1) - offset,
+          column: End$1,
+          y: mult * (h || xb.height() + 2 * xb.y1),
+          row: anchor
+        };
+        break;
+
+      case Right$1:
+        p.anchor = {
+          x: Math.ceil(xb.x2) + offset,
+          y: mult * (h || xb.height() + 2 * xb.y1),
+          row: anchor
+        };
+        break;
+
+      case Top$1:
+        p.anchor = {
+          y: Math.floor(yb.y1) - offset,
+          row: End$1,
+          x: mult * (w || yb.width() + 2 * yb.x1),
+          column: anchor
+        };
+        break;
+
+      case Bottom$1:
+        p.anchor = {
+          y: Math.ceil(yb.y2) + offset,
+          x: mult * (w || yb.width() + 2 * yb.x1),
+          column: anchor
+        };
+        break;
+
+      case TopLeft:
+        p.anchor = {
+          x: offset,
+          y: offset
+        };
+        break;
+
+      case TopRight:
+        p.anchor = {
+          x: w - offset,
+          y: offset,
+          column: End$1
+        };
+        break;
+
+      case BottomLeft:
+        p.anchor = {
+          x: offset,
+          y: h - offset,
+          row: End$1
+        };
+        break;
+
+      case BottomRight:
+        p.anchor = {
+          x: w - offset,
+          y: h - offset,
+          column: End$1,
+          row: End$1
+        };
+        break;
+    }
+
+    return p;
+  }
+
+  function legendLayout(view, legend) {
+    var item = legend.items[0],
+        datum = item.datum,
+        orient = item.orient,
+        bounds = item.bounds,
+        x = item.x,
+        y = item.y,
+        w,
+        h; // cache current bounds for later comparison
+
+    item._bounds ? item._bounds.clear().union(bounds) : item._bounds = bounds.clone();
+    bounds.clear(); // adjust legend to accommodate padding and title
+
+    legendGroupLayout(view, item, item.items[0].items[0]); // aggregate bounds to determine size, and include origin
+
+    bounds = legendBounds(item, bounds);
+    w = 2 * item.padding;
+    h = 2 * item.padding;
+
+    if (!bounds.empty()) {
+      w = Math.ceil(bounds.width() + w);
+      h = Math.ceil(bounds.height() + h);
+    }
+
+    if (datum.type === Symbols$1) {
+      legendEntryLayout(item.items[0].items[0].items[0].items);
+    }
+
+    if (orient !== None) {
+      item.x = x = 0;
+      item.y = y = 0;
+    }
+
+    item.width = w;
+    item.height = h;
+    boundStroke(bounds.set(x, y, x + w, y + h), item);
+    item.mark.bounds.clear().union(bounds);
+    return item;
+  }
+
+  function legendBounds(item, b) {
+    // aggregate item bounds
+    item.items.forEach(_ => b.union(_.bounds)); // anchor to legend origin
+
+    b.x1 = item.padding;
+    b.y1 = item.padding;
+    return b;
+  }
+
+  function legendGroupLayout(view, item, entry) {
+    var pad = item.padding,
+        ex = pad - entry.x,
+        ey = pad - entry.y;
+
+    if (!item.datum.title) {
+      if (ex || ey) translate(view, entry, ex, ey);
+    } else {
+      var title = item.items[1].items[0],
+          anchor = title.anchor,
+          tpad = item.titlePadding || 0,
+          tx = pad - title.x,
+          ty = pad - title.y;
+
+      switch (title.orient) {
+        case Left$1:
+          ex += Math.ceil(title.bounds.width()) + tpad;
+          break;
+
+        case Right$1:
+        case Bottom$1:
+          break;
+
+        default:
+          ey += title.bounds.height() + tpad;
+      }
+
+      if (ex || ey) translate(view, entry, ex, ey);
+
+      switch (title.orient) {
+        case Left$1:
+          ty += legendTitleOffset(item, entry, title, anchor, 1, 1);
+          break;
+
+        case Right$1:
+          tx += legendTitleOffset(item, entry, title, End$1, 0, 0) + tpad;
+          ty += legendTitleOffset(item, entry, title, anchor, 1, 1);
+          break;
+
+        case Bottom$1:
+          tx += legendTitleOffset(item, entry, title, anchor, 0, 0);
+          ty += legendTitleOffset(item, entry, title, End$1, -1, 0, 1) + tpad;
+          break;
+
+        default:
+          tx += legendTitleOffset(item, entry, title, anchor, 0, 0);
+      }
+
+      if (tx || ty) translate(view, title, tx, ty); // translate legend if title pushes into negative coordinates
+
+      if ((tx = Math.round(title.bounds.x1 - pad)) < 0) {
+        translate(view, entry, -tx, 0);
+        translate(view, title, -tx, 0);
+      }
+    }
+  }
+
+  function legendTitleOffset(item, entry, title, anchor, y, lr, noBar) {
+    const grad = item.datum.type !== 'symbol',
+          vgrad = title.datum.vgrad,
+          e = grad && (lr || !vgrad) && !noBar ? entry.items[0] : entry,
+          s = e.bounds[y ? 'y2' : 'x2'] - item.padding,
+          u = vgrad && lr ? s : 0,
+          v = vgrad && lr ? 0 : s,
+          o = y <= 0 ? 0 : multiLineOffset(title);
+    return Math.round(anchor === Start$1 ? u : anchor === End$1 ? v - o : 0.5 * (s - o));
+  }
+
+  function translate(view, item, dx, dy) {
+    item.x += dx;
+    item.y += dy;
+    item.bounds.translate(dx, dy);
+    item.mark.bounds.translate(dx, dy);
+    view.dirty(item);
+  }
+
+  function legendEntryLayout(entries) {
+    // get max widths for each column
+    const widths = entries.reduce((w, g) => {
+      w[g.column] = Math.max(g.bounds.x2 - g.x, w[g.column] || 0);
+      return w;
+    }, {}); // set dimensions of legend entry groups
+
+    entries.forEach(g => {
+      g.width = widths[g.column];
+      g.height = g.bounds.y2 - g.y;
+    });
+  }
+
+  function titleLayout(view, mark, width, height, viewBounds) {
+    var group = mark.items[0],
+        frame = group.frame,
+        orient = group.orient,
+        anchor = group.anchor,
+        offset = group.offset,
+        padding = group.padding,
+        title = group.items[0].items[0],
+        subtitle = group.items[1] && group.items[1].items[0],
+        end = orient === Left$1 || orient === Right$1 ? height : width,
+        start = 0,
+        x = 0,
+        y = 0,
+        sx = 0,
+        sy = 0,
+        pos;
+
+    if (frame !== Group) {
+      orient === Left$1 ? (start = viewBounds.y2, end = viewBounds.y1) : orient === Right$1 ? (start = viewBounds.y1, end = viewBounds.y2) : (start = viewBounds.x1, end = viewBounds.x2);
+    } else if (orient === Left$1) {
+      start = height, end = 0;
+    }
+
+    pos = anchor === Start$1 ? start : anchor === End$1 ? end : (start + end) / 2;
+
+    if (subtitle && subtitle.text) {
+      // position subtitle
+      switch (orient) {
+        case Top$1:
+        case Bottom$1:
+          sy = title.bounds.height() + padding;
+          break;
+
+        case Left$1:
+          sx = title.bounds.width() + padding;
+          break;
+
+        case Right$1:
+          sx = -title.bounds.width() - padding;
+          break;
+      }
+
+      tempBounds.clear().union(subtitle.bounds);
+      tempBounds.translate(sx - (subtitle.x || 0), sy - (subtitle.y || 0));
+
+      if (set$2(subtitle, 'x', sx) | set$2(subtitle, 'y', sy)) {
+        view.dirty(subtitle);
+        subtitle.bounds.clear().union(tempBounds);
+        subtitle.mark.bounds.clear().union(tempBounds);
+        view.dirty(subtitle);
+      }
+
+      tempBounds.clear().union(subtitle.bounds);
+    } else {
+      tempBounds.clear();
+    }
+
+    tempBounds.union(title.bounds); // position title group
+
+    switch (orient) {
+      case Top$1:
+        x = pos;
+        y = viewBounds.y1 - tempBounds.height() - offset;
+        break;
+
+      case Left$1:
+        x = viewBounds.x1 - tempBounds.width() - offset;
+        y = pos;
+        break;
+
+      case Right$1:
+        x = viewBounds.x2 + tempBounds.width() + offset;
+        y = pos;
+        break;
+
+      case Bottom$1:
+        x = pos;
+        y = viewBounds.y2 + offset;
+        break;
+
+      default:
+        x = group.x;
+        y = group.y;
+    }
+
+    if (set$2(group, 'x', x) | set$2(group, 'y', y)) {
+      tempBounds.translate(x, y);
+      view.dirty(group);
+      group.bounds.clear().union(tempBounds);
+      mark.bounds.clear().union(tempBounds);
+      view.dirty(group);
+    }
+
+    return group.bounds;
+  }
+  /**
+   * Layout view elements such as axes and legends.
+   * Also performs size adjustments.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {object} params.mark - Scenegraph mark of groups to layout.
+   */
+
+
+  function ViewLayout$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  inherits(ViewLayout$1, Transform, {
+    transform(_, pulse) {
+      const view = pulse.dataflow;
+
+      _.mark.items.forEach(group => {
+        if (_.layout) trellisLayout(view, group, _.layout);
+        layoutGroup(view, group, _);
+      });
+
+      return shouldReflow(_.mark.group) ? pulse.reflow() : pulse;
+    }
+
+  });
+
+  function shouldReflow(group) {
+    // We typically should reflow if layout is invoked (#2568), as child items
+    // may have resized and reflow ensures group bounds are re-calculated.
+    // However, legend entries have a special exception to avoid instability.
+    // For example, if a selected legend symbol gains a stroke on hover,
+    // we don't want to re-position subsequent elements in the legend.
+    return group && group.mark.role !== 'legend-entry';
+  }
+
+  function layoutGroup(view, group, _) {
+    var items = group.items,
+        width = Math.max(0, group.width || 0),
+        height = Math.max(0, group.height || 0),
+        viewBounds = new Bounds().set(0, 0, width, height),
+        xBounds = viewBounds.clone(),
+        yBounds = viewBounds.clone(),
+        legends = [],
+        title,
+        mark,
+        orient,
+        b,
+        i,
+        n; // layout axes, gather legends, collect bounds
+
+    for (i = 0, n = items.length; i < n; ++i) {
+      mark = items[i];
+
+      switch (mark.role) {
+        case AxisRole$1:
+          b = isYAxis(mark) ? xBounds : yBounds;
+          b.union(axisLayout(view, mark, width, height));
+          break;
+
+        case TitleRole$1:
+          title = mark;
+          break;
+
+        case LegendRole$1:
+          legends.push(legendLayout(view, mark));
+          break;
+
+        case FrameRole$1:
+        case ScopeRole$1:
+        case RowHeader:
+        case RowFooter:
+        case RowTitle:
+        case ColHeader:
+        case ColFooter:
+        case ColTitle:
+          xBounds.union(mark.bounds);
+          yBounds.union(mark.bounds);
+          break;
+
+        default:
+          viewBounds.union(mark.bounds);
+      }
+    } // layout legends, adjust viewBounds
+
+
+    if (legends.length) {
+      // group legends by orient
+      const l = {};
+      legends.forEach(item => {
+        orient = item.orient || Right$1;
+        if (orient !== None) (l[orient] || (l[orient] = [])).push(item);
+      }); // perform grid layout for each orient group
+
+      for (const orient in l) {
+        const g = l[orient];
+        gridLayout(view, g, legendParams(g, orient, _.legends, xBounds, yBounds, width, height));
+      } // update view bounds
+
+
+      legends.forEach(item => {
+        const b = item.bounds;
+
+        if (!b.equals(item._bounds)) {
+          item.bounds = item._bounds;
+          view.dirty(item); // dirty previous location
+
+          item.bounds = b;
+          view.dirty(item);
+        }
+
+        if (_.autosize && _.autosize.type === Fit) {
+          // For autosize fit, incorporate the orthogonal dimension only.
+          // Legends that overrun the chart area will then be clipped;
+          // otherwise the chart area gets reduced to nothing!
+          switch (item.orient) {
+            case Left$1:
+            case Right$1:
+              viewBounds.add(b.x1, 0).add(b.x2, 0);
+              break;
+
+            case Top$1:
+            case Bottom$1:
+              viewBounds.add(0, b.y1).add(0, b.y2);
+          }
+        } else {
+          viewBounds.union(b);
+        }
+      });
+    } // combine bounding boxes
+
+
+    viewBounds.union(xBounds).union(yBounds); // layout title, adjust bounds
+
+    if (title) {
+      viewBounds.union(titleLayout(view, title, width, height, viewBounds));
+    } // override aggregated view bounds if content is clipped
+
+
+    if (group.clip) {
+      viewBounds.set(0, 0, group.width || 0, group.height || 0);
+    } // perform size adjustment
+
+
+    viewSizeLayout(view, group, viewBounds, _);
+  }
+
+  function viewSizeLayout(view, group, viewBounds, _) {
+    const auto = _.autosize || {},
+          type = auto.type;
+    if (view._autosize < 1 || !type) return;
+    let viewWidth = view._width,
+        viewHeight = view._height,
+        width = Math.max(0, group.width || 0),
+        left = Math.max(0, Math.ceil(-viewBounds.x1)),
+        height = Math.max(0, group.height || 0),
+        top = Math.max(0, Math.ceil(-viewBounds.y1));
+    const right = Math.max(0, Math.ceil(viewBounds.x2 - width)),
+          bottom = Math.max(0, Math.ceil(viewBounds.y2 - height));
+
+    if (auto.contains === Padding$1) {
+      const padding = view.padding();
+      viewWidth -= padding.left + padding.right;
+      viewHeight -= padding.top + padding.bottom;
+    }
+
+    if (type === None) {
+      left = 0;
+      top = 0;
+      width = viewWidth;
+      height = viewHeight;
+    } else if (type === Fit) {
+      width = Math.max(0, viewWidth - left - right);
+      height = Math.max(0, viewHeight - top - bottom);
+    } else if (type === FitX) {
+      width = Math.max(0, viewWidth - left - right);
+      viewHeight = height + top + bottom;
+    } else if (type === FitY) {
+      viewWidth = width + left + right;
+      height = Math.max(0, viewHeight - top - bottom);
+    } else if (type === Pad) {
+      viewWidth = width + left + right;
+      viewHeight = height + top + bottom;
+    }
+
+    view._resizeView(viewWidth, viewHeight, width, height, [left, top], auto.resize);
+  }
+
+  var vtx = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    bound: Bound$1,
+    identifier: Identifier$1,
+    mark: Mark$1,
+    overlap: Overlap$1,
+    render: Render$1,
+    viewlayout: ViewLayout$1
+  });
+
+  /**
+   * Generates axis ticks for visualizing a spatial scale.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Scale} params.scale - The scale to generate ticks for.
+   * @param {*} [params.count=10] - The approximate number of ticks, or
+   *   desired tick interval, to use.
+   * @param {Array<*>} [params.values] - The exact tick values to use.
+   *   These must be legal domain values for the provided scale.
+   *   If provided, the count argument is ignored.
+   * @param {function(*):string} [params.formatSpecifier] - A format specifier
+   *   to use in conjunction with scale.tickFormat. Legal values are
+   *   any valid d3 4.0 format specifier.
+   * @param {function(*):string} [params.format] - The format function to use.
+   *   If provided, the formatSpecifier argument is ignored.
+   */
+
+  function AxisTicks$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  inherits(AxisTicks$1, Transform, {
+    transform(_, pulse) {
+      if (this.value && !_.modified()) {
+        return pulse.StopPropagation;
+      }
+
+      var locale = pulse.dataflow.locale(),
+          out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS),
+          ticks = this.value,
+          scale = _.scale,
+          tally = _.count == null ? _.values ? _.values.length : 10 : _.count,
+          count = tickCount(scale, tally, _.minstep),
+          format = _.format || tickFormat(locale, scale, count, _.formatSpecifier, _.formatType, !!_.values),
+          values = _.values ? validTicks(scale, _.values, count) : tickValues(scale, count);
+      if (ticks) out.rem = ticks;
+      ticks = values.map((value, i) => ingest$1({
+        index: i / (values.length - 1 || 1),
+        value: value,
+        label: format(value)
+      }));
+
+      if (_.extra && ticks.length) {
+        // add an extra tick pegged to the initial domain value
+        // this is used to generate axes with 'binned' domains
+        ticks.push(ingest$1({
+          index: -1,
+          extra: {
+            value: ticks[0].value
+          },
+          label: ''
+        }));
+      }
+
+      out.source = ticks;
+      out.add = ticks;
+      this.value = ticks;
+      return out;
+    }
+
+  });
+  /**
+   * Joins a set of data elements against a set of visual items.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): object} [params.item] - An item generator function.
+   * @param {function(object): *} [params.key] - The key field associating data and visual items.
+   */
+
+  function DataJoin$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  function defaultItemCreate() {
+    return ingest$1({});
+  }
+
+  function newMap(key) {
+    const map = fastmap().test(t => t.exit);
+
+    map.lookup = t => map.get(key(t));
+
+    return map;
+  }
+
+  inherits(DataJoin$1, Transform, {
+    transform(_, pulse) {
+      var df = pulse.dataflow,
+          out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS),
+          item = _.item || defaultItemCreate,
+          key = _.key || tupleid,
+          map = this.value; // prevent transient (e.g., hover) requests from
+      // cascading across marks derived from marks
+
+      if (isArray(out.encode)) {
+        out.encode = null;
+      }
+
+      if (map && (_.modified('key') || pulse.modified(key))) {
+        error('DataJoin does not support modified key function or fields.');
+      }
+
+      if (!map) {
+        pulse = pulse.addAll();
+        this.value = map = newMap(key);
+      }
+
+      pulse.visit(pulse.ADD, t => {
+        const k = key(t);
+        let x = map.get(k);
+
+        if (x) {
+          if (x.exit) {
+            map.empty--;
+            out.add.push(x);
+          } else {
+            out.mod.push(x);
+          }
+        } else {
+          x = item(t);
+          map.set(k, x);
+          out.add.push(x);
+        }
+
+        x.datum = t;
+        x.exit = false;
+      });
+      pulse.visit(pulse.MOD, t => {
+        const k = key(t),
+              x = map.get(k);
+
+        if (x) {
+          x.datum = t;
+          out.mod.push(x);
+        }
+      });
+      pulse.visit(pulse.REM, t => {
+        const k = key(t),
+              x = map.get(k);
+
+        if (t === x.datum && !x.exit) {
+          out.rem.push(x);
+          x.exit = true;
+          ++map.empty;
+        }
+      });
+      if (pulse.changed(pulse.ADD_MOD)) out.modifies('datum');
+
+      if (pulse.clean() || _.clean && map.empty > df.cleanThreshold) {
+        df.runAfter(map.clean);
+      }
+
+      return out;
+    }
+
+  });
+  /**
+   * Invokes encoding functions for visual items.
+   * @constructor
+   * @param {object} params - The parameters to the encoding functions. This
+   *   parameter object will be passed through to all invoked encoding functions.
+   * @param {object} [params.mod=false] - Flag indicating if tuples in the input
+   *   mod set that are unmodified by encoders should be included in the output.
+   * @param {object} param.encoders - The encoding functions
+   * @param {function(object, object): boolean} [param.encoders.update] - Update encoding set
+   * @param {function(object, object): boolean} [param.encoders.enter] - Enter encoding set
+   * @param {function(object, object): boolean} [param.encoders.exit] - Exit encoding set
+   */
+
+  function Encode$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  inherits(Encode$1, Transform, {
+    transform(_, pulse) {
+      var out = pulse.fork(pulse.ADD_REM),
+          fmod = _.mod || false,
+          encoders = _.encoders,
+          encode = pulse.encode; // if an array, the encode directive includes additional sets
+      // that must be defined in order for the primary set to be invoked
+      // e.g., only run the update set if the hover set is defined
+
+      if (isArray(encode)) {
+        if (out.changed() || encode.every(e => encoders[e])) {
+          encode = encode[0];
+          out.encode = null; // consume targeted encode directive
+        } else {
+          return pulse.StopPropagation;
+        }
+      } // marshall encoder functions
+
+
+      var reenter = encode === 'enter',
+          update = encoders.update || falsy,
+          enter = encoders.enter || falsy,
+          exit = encoders.exit || falsy,
+          set = (encode && !reenter ? encoders[encode] : update) || falsy;
+
+      if (pulse.changed(pulse.ADD)) {
+        pulse.visit(pulse.ADD, t => {
+          enter(t, _);
+          update(t, _);
+        });
+        out.modifies(enter.output);
+        out.modifies(update.output);
+
+        if (set !== falsy && set !== update) {
+          pulse.visit(pulse.ADD, t => {
+            set(t, _);
+          });
+          out.modifies(set.output);
+        }
+      }
+
+      if (pulse.changed(pulse.REM) && exit !== falsy) {
+        pulse.visit(pulse.REM, t => {
+          exit(t, _);
+        });
+        out.modifies(exit.output);
+      }
+
+      if (reenter || set !== falsy) {
+        const flag = pulse.MOD | (_.modified() ? pulse.REFLOW : 0);
+
+        if (reenter) {
+          pulse.visit(flag, t => {
+            const mod = enter(t, _) || fmod;
+            if (set(t, _) || mod) out.mod.push(t);
+          });
+          if (out.mod.length) out.modifies(enter.output);
+        } else {
+          pulse.visit(flag, t => {
+            if (set(t, _) || fmod) out.mod.push(t);
+          });
+        }
+
+        if (out.mod.length) out.modifies(set.output);
+      }
+
+      return out.changed() ? out : pulse.StopPropagation;
+    }
+
+  });
+  /**
+   * Generates legend entries for visualizing a scale.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Scale} params.scale - The scale to generate items for.
+   * @param {*} [params.count=5] - The approximate number of items, or
+   *   desired tick interval, to use.
+   * @param {*} [params.limit] - The maximum number of entries to
+   *   include in a symbol legend.
+   * @param {Array<*>} [params.values] - The exact tick values to use.
+   *   These must be legal domain values for the provided scale.
+   *   If provided, the count argument is ignored.
+   * @param {string} [params.formatSpecifier] - A format specifier
+   *   to use in conjunction with scale.tickFormat. Legal values are
+   *   any valid D3 format specifier string.
+   * @param {function(*):string} [params.format] - The format function to use.
+   *   If provided, the formatSpecifier argument is ignored.
+   */
+
+  function LegendEntries$1(params) {
+    Transform.call(this, [], params);
+  }
+
+  inherits(LegendEntries$1, Transform, {
+    transform(_, pulse) {
+      if (this.value != null && !_.modified()) {
+        return pulse.StopPropagation;
+      }
+
+      var locale = pulse.dataflow.locale(),
+          out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS),
+          items = this.value,
+          type = _.type || SymbolLegend,
+          scale = _.scale,
+          limit = +_.limit,
+          count = tickCount(scale, _.count == null ? 5 : _.count, _.minstep),
+          lskip = !!_.values || type === SymbolLegend,
+          format = _.format || labelFormat(locale, scale, count, type, _.formatSpecifier, _.formatType, lskip),
+          values = _.values || labelValues(scale, count),
+          domain,
+          fraction,
+          size,
+          offset,
+          ellipsis;
+      if (items) out.rem = items;
+
+      if (type === SymbolLegend) {
+        if (limit && values.length > limit) {
+          pulse.dataflow.warn('Symbol legend count exceeds limit, filtering items.');
+          items = values.slice(0, limit - 1);
+          ellipsis = true;
+        } else {
+          items = values;
+        }
+
+        if (isFunction(size = _.size)) {
+          // if first value maps to size zero, remove from list (vega#717)
+          if (!_.values && scale(items[0]) === 0) {
+            items = items.slice(1);
+          } // compute size offset for legend entries
+
+
+          offset = items.reduce((max, value) => Math.max(max, size(value, _)), 0);
+        } else {
+          size = constant$4(offset = size || 8);
+        }
+
+        items = items.map((value, index) => ingest$1({
+          index: index,
+          label: format(value, index, items),
+          value: value,
+          offset: offset,
+          size: size(value, _)
+        }));
+
+        if (ellipsis) {
+          ellipsis = values[items.length];
+          items.push(ingest$1({
+            index: items.length,
+            label: `\u2026${values.length - items.length} entries`,
+            value: ellipsis,
+            offset: offset,
+            size: size(ellipsis, _)
+          }));
+        }
+      } else if (type === GradientLegend) {
+        domain = scale.domain(), fraction = scaleFraction(scale, domain[0], peek$1(domain)); // if automatic label generation produces 2 or fewer values,
+        // use the domain end points instead (fixes vega/vega#1364)
+
+        if (values.length < 3 && !_.values && domain[0] !== peek$1(domain)) {
+          values = [domain[0], peek$1(domain)];
+        }
+
+        items = values.map((value, index) => ingest$1({
+          index: index,
+          label: format(value, index, values),
+          value: value,
+          perc: fraction(value)
+        }));
+      } else {
+        size = values.length - 1;
+        fraction = labelFraction(scale);
+        items = values.map((value, index) => ingest$1({
+          index: index,
+          label: format(value, index, values),
+          value: value,
+          perc: index ? fraction(value) : 0,
+          perc2: index === size ? 1 : fraction(values[index + 1])
+        }));
+      }
+
+      out.source = items;
+      out.add = items;
+      this.value = items;
+      return out;
+    }
+
+  });
+
+  const sourceX = t => t.source.x;
+
+  const sourceY = t => t.source.y;
+
+  const targetX = t => t.target.x;
+
+  const targetY = t => t.target.y;
+  /**
+   * Layout paths linking source and target elements.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   */
+
+
+  function LinkPath(params) {
+    Transform.call(this, {}, params);
+  }
+
+  LinkPath.Definition = {
+    'type': 'LinkPath',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'sourceX',
+      'type': 'field',
+      'default': 'source.x'
+    }, {
+      'name': 'sourceY',
+      'type': 'field',
+      'default': 'source.y'
+    }, {
+      'name': 'targetX',
+      'type': 'field',
+      'default': 'target.x'
+    }, {
+      'name': 'targetY',
+      'type': 'field',
+      'default': 'target.y'
+    }, {
+      'name': 'orient',
+      'type': 'enum',
+      'default': 'vertical',
+      'values': ['horizontal', 'vertical', 'radial']
+    }, {
+      'name': 'shape',
+      'type': 'enum',
+      'default': 'line',
+      'values': ['line', 'arc', 'curve', 'diagonal', 'orthogonal']
+    }, {
+      'name': 'require',
+      'type': 'signal'
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'default': 'path'
+    }]
+  };
+  inherits(LinkPath, Transform, {
+    transform(_, pulse) {
+      var sx = _.sourceX || sourceX,
+          sy = _.sourceY || sourceY,
+          tx = _.targetX || targetX,
+          ty = _.targetY || targetY,
+          as = _.as || 'path',
+          orient = _.orient || 'vertical',
+          shape = _.shape || 'line',
+          path = Paths.get(shape + '-' + orient) || Paths.get(shape);
+
+      if (!path) {
+        error('LinkPath unsupported type: ' + _.shape + (_.orient ? '-' + _.orient : ''));
+      }
+
+      pulse.visit(pulse.SOURCE, t => {
+        t[as] = path(sx(t), sy(t), tx(t), ty(t));
+      });
+      return pulse.reflow(_.modified()).modifies(as);
+    }
+
+  });
+
+  const line = (sx, sy, tx, ty) => 'M' + sx + ',' + sy + 'L' + tx + ',' + ty;
+
+  const lineR = (sa, sr, ta, tr) => line(sr * Math.cos(sa), sr * Math.sin(sa), tr * Math.cos(ta), tr * Math.sin(ta));
+
+  const arc = (sx, sy, tx, ty) => {
+    var dx = tx - sx,
+        dy = ty - sy,
+        rr = Math.sqrt(dx * dx + dy * dy) / 2,
+        ra = 180 * Math.atan2(dy, dx) / Math.PI;
+    return 'M' + sx + ',' + sy + 'A' + rr + ',' + rr + ' ' + ra + ' 0 1' + ' ' + tx + ',' + ty;
+  };
+
+  const arcR = (sa, sr, ta, tr) => arc(sr * Math.cos(sa), sr * Math.sin(sa), tr * Math.cos(ta), tr * Math.sin(ta));
+
+  const curve = (sx, sy, tx, ty) => {
+    const dx = tx - sx,
+          dy = ty - sy,
+          ix = 0.2 * (dx + dy),
+          iy = 0.2 * (dy - dx);
+    return 'M' + sx + ',' + sy + 'C' + (sx + ix) + ',' + (sy + iy) + ' ' + (tx + iy) + ',' + (ty - ix) + ' ' + tx + ',' + ty;
+  };
+
+  const curveR = (sa, sr, ta, tr) => curve(sr * Math.cos(sa), sr * Math.sin(sa), tr * Math.cos(ta), tr * Math.sin(ta));
+
+  const orthoX = (sx, sy, tx, ty) => 'M' + sx + ',' + sy + 'V' + ty + 'H' + tx;
+
+  const orthoY = (sx, sy, tx, ty) => 'M' + sx + ',' + sy + 'H' + tx + 'V' + ty;
+
+  const orthoR = (sa, sr, ta, tr) => {
+    const sc = Math.cos(sa),
+          ss = Math.sin(sa),
+          tc = Math.cos(ta),
+          ts = Math.sin(ta),
+          sf = Math.abs(ta - sa) > Math.PI ? ta <= sa : ta > sa;
+    return 'M' + sr * sc + ',' + sr * ss + 'A' + sr + ',' + sr + ' 0 0,' + (sf ? 1 : 0) + ' ' + sr * tc + ',' + sr * ts + 'L' + tr * tc + ',' + tr * ts;
+  };
+
+  const diagonalX = (sx, sy, tx, ty) => {
+    const m = (sx + tx) / 2;
+    return 'M' + sx + ',' + sy + 'C' + m + ',' + sy + ' ' + m + ',' + ty + ' ' + tx + ',' + ty;
+  };
+
+  const diagonalY = (sx, sy, tx, ty) => {
+    const m = (sy + ty) / 2;
+    return 'M' + sx + ',' + sy + 'C' + sx + ',' + m + ' ' + tx + ',' + m + ' ' + tx + ',' + ty;
+  };
+
+  const diagonalR = (sa, sr, ta, tr) => {
+    const sc = Math.cos(sa),
+          ss = Math.sin(sa),
+          tc = Math.cos(ta),
+          ts = Math.sin(ta),
+          mr = (sr + tr) / 2;
+    return 'M' + sr * sc + ',' + sr * ss + 'C' + mr * sc + ',' + mr * ss + ' ' + mr * tc + ',' + mr * ts + ' ' + tr * tc + ',' + tr * ts;
+  };
+
+  const Paths = fastmap({
+    'line': line,
+    'line-radial': lineR,
+    'arc': arc,
+    'arc-radial': arcR,
+    'curve': curve,
+    'curve-radial': curveR,
+    'orthogonal-horizontal': orthoX,
+    'orthogonal-vertical': orthoY,
+    'orthogonal-radial': orthoR,
+    'diagonal-horizontal': diagonalX,
+    'diagonal-vertical': diagonalY,
+    'diagonal-radial': diagonalR
+  });
+  /**
+   * Pie and donut chart layout.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - The value field to size pie segments.
+   * @param {number} [params.startAngle=0] - The start angle (in radians) of the layout.
+   * @param {number} [params.endAngle=2π] - The end angle (in radians) of the layout.
+   * @param {boolean} [params.sort] - Boolean flag for sorting sectors by value.
+   */
+
+  function Pie(params) {
+    Transform.call(this, null, params);
+  }
+
+  Pie.Definition = {
+    'type': 'Pie',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field'
+    }, {
+      'name': 'startAngle',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'endAngle',
+      'type': 'number',
+      'default': 6.283185307179586
+    }, {
+      'name': 'sort',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': 2,
+      'default': ['startAngle', 'endAngle']
+    }]
+  };
+  inherits(Pie, Transform, {
+    transform(_, pulse) {
+      var as = _.as || ['startAngle', 'endAngle'],
+          startAngle = as[0],
+          endAngle = as[1],
+          field = _.field || one$2,
+          start = _.startAngle || 0,
+          stop = _.endAngle != null ? _.endAngle : 2 * Math.PI,
+          data = pulse.source,
+          values = data.map(field),
+          n = values.length,
+          a = start,
+          k = (stop - start) / sum(values),
+          index = range$1$1(n),
+          i,
+          t,
+          v;
+
+      if (_.sort) {
+        index.sort((a, b) => values[a] - values[b]);
+      }
+
+      for (i = 0; i < n; ++i) {
+        v = values[index[i]];
+        t = data[index[i]];
+        t[startAngle] = a;
+        t[endAngle] = a += v * k;
+      }
+
+      this.value = values;
+      return pulse.reflow(_.modified()).modifies(as);
+    }
+
+  });
+  const DEFAULT_COUNT = 5;
+
+  function includeZero(scale) {
+    const type = scale.type;
+    return !scale.bins && (type === Linear || type === Pow || type === Sqrt);
+  }
+
+  function includePad(type) {
+    return isContinuous(type) && type !== Sequential;
+  }
+
+  const SKIP$1 = toSet(['set', 'modified', 'clear', 'type', 'scheme', 'schemeExtent', 'schemeCount', 'domain', 'domainMin', 'domainMid', 'domainMax', 'domainRaw', 'domainImplicit', 'nice', 'zero', 'bins', 'range', 'rangeStep', 'round', 'reverse', 'interpolate', 'interpolateGamma']);
+  /**
+   * Maintains a scale function mapping data values to visual channels.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   */
+
+  function Scale$1(params) {
+    Transform.call(this, null, params);
+    this.modified(true); // always treat as modified
+  }
+
+  inherits(Scale$1, Transform, {
+    transform(_, pulse) {
+      var df = pulse.dataflow,
+          scale$1 = this.value,
+          key = scaleKey(_);
+
+      if (!scale$1 || key !== scale$1.type) {
+        this.value = scale$1 = scale$4(key)();
+      }
+
+      for (key in _) if (!SKIP$1[key]) {
+        // padding is a scale property for band/point but not others
+        if (key === 'padding' && includePad(scale$1.type)) continue; // invoke scale property setter, raise warning if not found
+
+        isFunction(scale$1[key]) ? scale$1[key](_[key]) : df.warn('Unsupported scale property: ' + key);
+      }
+
+      configureRange(scale$1, _, configureBins(scale$1, _, configureDomain(scale$1, _, df)));
+      return pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS);
+    }
+
+  });
+
+  function scaleKey(_) {
+    var t = _.type,
+        d = '',
+        n; // backwards compatibility pre Vega 5.
+
+    if (t === Sequential) return Sequential + '-' + Linear;
+
+    if (isContinuousColor(_)) {
+      n = _.rawDomain ? _.rawDomain.length : _.domain ? _.domain.length + +(_.domainMid != null) : 0;
+      d = n === 2 ? Sequential + '-' : n === 3 ? Diverging + '-' : '';
+    }
+
+    return (d + t || Linear).toLowerCase();
+  }
+
+  function isContinuousColor(_) {
+    const t = _.type;
+    return isContinuous(t) && t !== Time && t !== UTC && (_.scheme || _.range && _.range.length && _.range.every(isString));
+  }
+
+  function configureDomain(scale, _, df) {
+    // check raw domain, if provided use that and exit early
+    const raw = rawDomain(scale, _.domainRaw, df);
+    if (raw > -1) return raw;
+    var domain = _.domain,
+        type = scale.type,
+        zero = _.zero || _.zero === undefined && includeZero(scale),
+        n,
+        mid;
+    if (!domain) return 0; // adjust continuous domain for minimum pixel padding
+
+    if (includePad(type) && _.padding && domain[0] !== peek$1(domain)) {
+      domain = padDomain(type, domain, _.range, _.padding, _.exponent, _.constant);
+    } // adjust domain based on zero, min, max settings
+
+
+    if (zero || _.domainMin != null || _.domainMax != null || _.domainMid != null) {
+      n = (domain = domain.slice()).length - 1 || 1;
+
+      if (zero) {
+        if (domain[0] > 0) domain[0] = 0;
+        if (domain[n] < 0) domain[n] = 0;
+      }
+
+      if (_.domainMin != null) domain[0] = _.domainMin;
+      if (_.domainMax != null) domain[n] = _.domainMax;
+
+      if (_.domainMid != null) {
+        mid = _.domainMid;
+        const i = mid > domain[n] ? n + 1 : mid < domain[0] ? 0 : n;
+        if (i !== n) df.warn('Scale domainMid exceeds domain min or max.', mid);
+        domain.splice(i, 0, mid);
+      }
+    } // set the scale domain
+
+
+    scale.domain(domainCheck(type, domain, df)); // if ordinal scale domain is defined, prevent implicit
+    // domain construction as side-effect of scale lookup
+
+    if (type === Ordinal) {
+      scale.unknown(_.domainImplicit ? implicit : undefined);
+    } // perform 'nice' adjustment as requested
+
+
+    if (_.nice && scale.nice) {
+      scale.nice(_.nice !== true && tickCount(scale, _.nice) || null);
+    } // return the cardinality of the domain
+
+
+    return domain.length;
+  }
+
+  function rawDomain(scale, raw, df) {
+    if (raw) {
+      scale.domain(domainCheck(scale.type, raw, df));
+      return raw.length;
+    } else {
+      return -1;
+    }
+  }
+
+  function padDomain(type, domain, range, pad, exponent, constant) {
+    var span = Math.abs(peek$1(range) - range[0]),
+        frac = span / (span - 2 * pad),
+        d = type === Log ? zoomLog(domain, null, frac) : type === Sqrt ? zoomPow(domain, null, frac, 0.5) : type === Pow ? zoomPow(domain, null, frac, exponent || 1) : type === Symlog ? zoomSymlog(domain, null, frac, constant || 1) : zoomLinear(domain, null, frac);
+    domain = domain.slice();
+    domain[0] = d[0];
+    domain[domain.length - 1] = d[1];
+    return domain;
+  }
+
+  function domainCheck(type, domain, df) {
+    if (isLogarithmic(type)) {
+      // sum signs of domain values
+      // if all pos or all neg, abs(sum) === domain.length
+      var s = Math.abs(domain.reduce((s, v) => s + (v < 0 ? -1 : v > 0 ? 1 : 0), 0));
+
+      if (s !== domain.length) {
+        df.warn('Log scale domain includes zero: ' + $(domain));
+      }
+    }
+
+    return domain;
+  }
+
+  function configureBins(scale, _, count) {
+    let bins = _.bins;
+
+    if (bins && !isArray(bins)) {
+      // generate bin boundary array
+      const domain = scale.domain(),
+            lo = domain[0],
+            hi = peek$1(domain),
+            step = bins.step;
+      let start = bins.start == null ? lo : bins.start,
+          stop = bins.stop == null ? hi : bins.stop;
+      if (!step) error('Scale bins parameter missing step property.');
+      if (start < lo) start = step * Math.ceil(lo / step);
+      if (stop > hi) stop = step * Math.floor(hi / step);
+      bins = range$1$1(start, stop + step / 2, step);
+    }
+
+    if (bins) {
+      // assign bin boundaries to scale instance
+      scale.bins = bins;
+    } else if (scale.bins) {
+      // no current bins, remove bins if previously set
+      delete scale.bins;
+    } // special handling for bin-ordinal scales
+
+
+    if (scale.type === BinOrdinal) {
+      if (!bins) {
+        // the domain specifies the bins
+        scale.bins = scale.domain();
+      } else if (!_.domain && !_.domainRaw) {
+        // the bins specify the domain
+        scale.domain(bins);
+        count = bins.length;
+      }
+    } // return domain cardinality
+
+
+    return count;
+  }
+
+  function configureRange(scale, _, count) {
+    var type = scale.type,
+        round = _.round || false,
+        range = _.range; // if range step specified, calculate full range extent
+
+    if (_.rangeStep != null) {
+      range = configureRangeStep(type, _, count);
+    } // else if a range scheme is defined, use that
+    else if (_.scheme) {
+      range = configureScheme(type, _, count);
+
+      if (isFunction(range)) {
+        if (scale.interpolator) {
+          return scale.interpolator(range);
+        } else {
+          error(`Scale type ${type} does not support interpolating color schemes.`);
+        }
+      }
+    } // given a range array for an interpolating scale, convert to interpolator
+
+
+    if (range && isInterpolating(type)) {
+      return scale.interpolator(interpolateColors(flip(range, _.reverse), _.interpolate, _.interpolateGamma));
+    } // configure rounding / interpolation
+
+
+    if (range && _.interpolate && scale.interpolate) {
+      scale.interpolate(interpolate(_.interpolate, _.interpolateGamma));
+    } else if (isFunction(scale.round)) {
+      scale.round(round);
+    } else if (isFunction(scale.rangeRound)) {
+      scale.interpolate(round ? interpolateRound : interpolate$1);
+    }
+
+    if (range) scale.range(flip(range, _.reverse));
+  }
+
+  function configureRangeStep(type, _, count) {
+    if (type !== Band && type !== Point) {
+      error('Only band and point scales support rangeStep.');
+    } // calculate full range based on requested step size and padding
+
+
+    var outer = (_.paddingOuter != null ? _.paddingOuter : _.padding) || 0,
+        inner = type === Point ? 1 : (_.paddingInner != null ? _.paddingInner : _.padding) || 0;
+    return [0, _.rangeStep * bandSpace(count, inner, outer)];
+  }
+
+  function configureScheme(type, _, count) {
+    var extent = _.schemeExtent,
+        name,
+        scheme$1;
+
+    if (isArray(_.scheme)) {
+      scheme$1 = interpolateColors(_.scheme, _.interpolate, _.interpolateGamma);
+    } else {
+      name = _.scheme.toLowerCase();
+      scheme$1 = scheme(name);
+      if (!scheme$1) error(`Unrecognized scheme name: ${_.scheme}`);
+    } // determine size for potential discrete range
+
+
+    count = type === Threshold ? count + 1 : type === BinOrdinal ? count - 1 : type === Quantile || type === Quantize ? +_.schemeCount || DEFAULT_COUNT : count; // adjust and/or quantize scheme as appropriate
+
+    return isInterpolating(type) ? adjustScheme(scheme$1, extent, _.reverse) : isFunction(scheme$1) ? quantizeInterpolator(adjustScheme(scheme$1, extent), count) : type === Ordinal ? scheme$1 : scheme$1.slice(0, count);
+  }
+
+  function adjustScheme(scheme, extent, reverse) {
+    return isFunction(scheme) && (extent || reverse) ? interpolateRange(scheme, flip(extent || [0, 1], reverse)) : scheme;
+  }
+
+  function flip(array, reverse) {
+    return reverse ? array.slice().reverse() : array;
+  }
+  /**
+   * Sorts scenegraph items in the pulse source array.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(*,*): number} [params.sort] - A comparator
+   *   function for sorting tuples.
+   */
+
+
+  function SortItems$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  inherits(SortItems$1, Transform, {
+    transform(_, pulse) {
+      const mod = _.modified('sort') || pulse.changed(pulse.ADD) || pulse.modified(_.sort.fields) || pulse.modified('datum');
+      if (mod) pulse.source.sort(stableCompare(_.sort));
+      this.modified(mod);
+      return pulse;
+    }
+
+  });
+  const Zero = 'zero',
+        Center$1 = 'center',
+        Normalize = 'normalize',
+        DefOutput = ['y0', 'y1'];
+  /**
+   * Stack layout for visualization elements.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - The value field to stack.
+   * @param {Array<function(object): *>} [params.groupby] - An array of accessors to groupby.
+   * @param {function(object,object): number} [params.sort] - A comparator for stack sorting.
+   * @param {string} [offset='zero'] - Stack baseline offset. One of 'zero', 'center', 'normalize'.
+   */
+
+  function Stack(params) {
+    Transform.call(this, null, params);
+  }
+
+  Stack.Definition = {
+    'type': 'Stack',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field'
+    }, {
+      'name': 'groupby',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'sort',
+      'type': 'compare'
+    }, {
+      'name': 'offset',
+      'type': 'enum',
+      'default': Zero,
+      'values': [Zero, Center$1, Normalize]
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': 2,
+      'default': DefOutput
+    }]
+  };
+  inherits(Stack, Transform, {
+    transform(_, pulse) {
+      var as = _.as || DefOutput,
+          y0 = as[0],
+          y1 = as[1],
+          sort = stableCompare(_.sort),
+          field = _.field || one$2,
+          stack = _.offset === Center$1 ? stackCenter : _.offset === Normalize ? stackNormalize : stackZero,
+          groups,
+          i,
+          n,
+          max; // partition, sum, and sort the stack groups
+
+      groups = partition$3(pulse.source, _.groupby, sort, field); // compute stack layouts per group
+
+      for (i = 0, n = groups.length, max = groups.max; i < n; ++i) {
+        stack(groups[i], max, field, y0, y1);
+      }
+
+      return pulse.reflow(_.modified()).modifies(as);
+    }
+
+  });
+
+  function stackCenter(group, max, field, y0, y1) {
+    var last = (max - group.sum) / 2,
+        m = group.length,
+        j = 0,
+        t;
+
+    for (; j < m; ++j) {
+      t = group[j];
+      t[y0] = last;
+      t[y1] = last += Math.abs(field(t));
+    }
+  }
+
+  function stackNormalize(group, max, field, y0, y1) {
+    var scale = 1 / group.sum,
+        last = 0,
+        m = group.length,
+        j = 0,
+        v = 0,
+        t;
+
+    for (; j < m; ++j) {
+      t = group[j];
+      t[y0] = last;
+      t[y1] = last = scale * (v += Math.abs(field(t)));
+    }
+  }
+
+  function stackZero(group, max, field, y0, y1) {
+    var lastPos = 0,
+        lastNeg = 0,
+        m = group.length,
+        j = 0,
+        v,
+        t;
+
+    for (; j < m; ++j) {
+      t = group[j];
+      v = +field(t);
+
+      if (v < 0) {
+        t[y0] = lastNeg;
+        t[y1] = lastNeg += v;
+      } else {
+        t[y0] = lastPos;
+        t[y1] = lastPos += v;
+      }
+    }
+  }
+
+  function partition$3(data, groupby, sort, field) {
+    var groups = [],
+        get = f => f(t),
+        map,
+        i,
+        n,
+        m,
+        t,
+        k,
+        g,
+        s,
+        max; // partition data points into stack groups
+
+
+    if (groupby == null) {
+      groups.push(data.slice());
+    } else {
+      for (map = {}, i = 0, n = data.length; i < n; ++i) {
+        t = data[i];
+        k = groupby.map(get);
+        g = map[k];
+
+        if (!g) {
+          map[k] = g = [];
+          groups.push(g);
+        }
+
+        g.push(t);
+      }
+    } // compute sums of groups, sort groups as needed
+
+
+    for (k = 0, max = 0, m = groups.length; k < m; ++k) {
+      g = groups[k];
+
+      for (i = 0, s = 0, n = g.length; i < n; ++i) {
+        s += Math.abs(field(g[i]));
+      }
+
+      g.sum = s;
+      if (s > max) max = s;
+      if (sort) g.sort(sort);
+    }
+
+    groups.max = max;
+    return groups;
+  }
+
+  var encode$1 = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    axisticks: AxisTicks$1,
+    datajoin: DataJoin$1,
+    encode: Encode$1,
+    legendentries: LegendEntries$1,
+    linkpath: LinkPath,
+    pie: Pie,
+    scale: Scale$1,
+    sortitems: SortItems$1,
+    stack: Stack
+  });
+
+  var epsilon$2 = 1e-6;
+  var epsilon2 = 1e-12;
+  var pi$1 = Math.PI;
+  var halfPi$1 = pi$1 / 2;
+  var quarterPi = pi$1 / 4;
+  var tau$1 = pi$1 * 2;
+  var degrees = 180 / pi$1;
+  var radians = pi$1 / 180;
+  var abs$1 = Math.abs;
+  var atan = Math.atan;
+  var atan2 = Math.atan2;
+  var cos$1 = Math.cos;
+  var ceil = Math.ceil;
+  var exp = Math.exp;
+  var hypot = Math.hypot;
+  var log$1 = Math.log;
+  var pow$1 = Math.pow;
+  var sin$1 = Math.sin;
+  var sign = Math.sign || function (x) {
+    return x > 0 ? 1 : x < 0 ? -1 : 0;
+  };
+  var sqrt$1 = Math.sqrt;
+  var tan = Math.tan;
+  function acos(x) {
+    return x > 1 ? 0 : x < -1 ? pi$1 : Math.acos(x);
+  }
+  function asin$1(x) {
+    return x > 1 ? halfPi$1 : x < -1 ? -halfPi$1 : Math.asin(x);
+  }
+
+  function noop$2() {}
+
+  function streamGeometry(geometry, stream) {
+    if (geometry && streamGeometryType.hasOwnProperty(geometry.type)) {
+      streamGeometryType[geometry.type](geometry, stream);
+    }
+  }
+
+  var streamObjectType = {
+    Feature: function (object, stream) {
+      streamGeometry(object.geometry, stream);
+    },
+    FeatureCollection: function (object, stream) {
+      var features = object.features,
+          i = -1,
+          n = features.length;
+
+      while (++i < n) streamGeometry(features[i].geometry, stream);
+    }
+  };
+  var streamGeometryType = {
+    Sphere: function (object, stream) {
+      stream.sphere();
+    },
+    Point: function (object, stream) {
+      object = object.coordinates;
+      stream.point(object[0], object[1], object[2]);
+    },
+    MultiPoint: function (object, stream) {
+      var coordinates = object.coordinates,
+          i = -1,
+          n = coordinates.length;
+
+      while (++i < n) object = coordinates[i], stream.point(object[0], object[1], object[2]);
+    },
+    LineString: function (object, stream) {
+      streamLine(object.coordinates, stream, 0);
+    },
+    MultiLineString: function (object, stream) {
+      var coordinates = object.coordinates,
+          i = -1,
+          n = coordinates.length;
+
+      while (++i < n) streamLine(coordinates[i], stream, 0);
+    },
+    Polygon: function (object, stream) {
+      streamPolygon(object.coordinates, stream);
+    },
+    MultiPolygon: function (object, stream) {
+      var coordinates = object.coordinates,
+          i = -1,
+          n = coordinates.length;
+
+      while (++i < n) streamPolygon(coordinates[i], stream);
+    },
+    GeometryCollection: function (object, stream) {
+      var geometries = object.geometries,
+          i = -1,
+          n = geometries.length;
+
+      while (++i < n) streamGeometry(geometries[i], stream);
+    }
+  };
+
+  function streamLine(coordinates, stream, closed) {
+    var i = -1,
+        n = coordinates.length - closed,
+        coordinate;
+    stream.lineStart();
+
+    while (++i < n) coordinate = coordinates[i], stream.point(coordinate[0], coordinate[1], coordinate[2]);
+
+    stream.lineEnd();
+  }
+
+  function streamPolygon(coordinates, stream) {
+    var i = -1,
+        n = coordinates.length;
+    stream.polygonStart();
+
+    while (++i < n) streamLine(coordinates[i], stream, 1);
+
+    stream.polygonEnd();
+  }
+
+  function geoStream (object, stream) {
+    if (object && streamObjectType.hasOwnProperty(object.type)) {
+      streamObjectType[object.type](object, stream);
+    } else {
+      streamGeometry(object, stream);
+    }
+  }
+
+  var areaRingSum$1 = new Adder(); // hello?
+
+  var areaSum$1 = new Adder(),
+      lambda00$2,
+      phi00$2,
+      lambda0$1,
+      cosPhi0,
+      sinPhi0;
+  var areaStream$1 = {
+    point: noop$2,
+    lineStart: noop$2,
+    lineEnd: noop$2,
+    polygonStart: function () {
+      areaRingSum$1 = new Adder();
+      areaStream$1.lineStart = areaRingStart$1;
+      areaStream$1.lineEnd = areaRingEnd$1;
+    },
+    polygonEnd: function () {
+      var areaRing = +areaRingSum$1;
+      areaSum$1.add(areaRing < 0 ? tau$1 + areaRing : areaRing);
+      this.lineStart = this.lineEnd = this.point = noop$2;
+    },
+    sphere: function () {
+      areaSum$1.add(tau$1);
+    }
+  };
+
+  function areaRingStart$1() {
+    areaStream$1.point = areaPointFirst$1;
+  }
+
+  function areaRingEnd$1() {
+    areaPoint$1(lambda00$2, phi00$2);
+  }
+
+  function areaPointFirst$1(lambda, phi) {
+    areaStream$1.point = areaPoint$1;
+    lambda00$2 = lambda, phi00$2 = phi;
+    lambda *= radians, phi *= radians;
+    lambda0$1 = lambda, cosPhi0 = cos$1(phi = phi / 2 + quarterPi), sinPhi0 = sin$1(phi);
+  }
+
+  function areaPoint$1(lambda, phi) {
+    lambda *= radians, phi *= radians;
+    phi = phi / 2 + quarterPi; // half the angular distance from south pole
+    // Spherical excess E for a spherical triangle with vertices: south pole,
+    // previous point, current point.  Uses a formula derived from Cagnoli’s
+    // theorem.  See Todhunter, Spherical Trig. (1871), Sec. 103, Eq. (2).
+
+    var dLambda = lambda - lambda0$1,
+        sdLambda = dLambda >= 0 ? 1 : -1,
+        adLambda = sdLambda * dLambda,
+        cosPhi = cos$1(phi),
+        sinPhi = sin$1(phi),
+        k = sinPhi0 * sinPhi,
+        u = cosPhi0 * cosPhi + k * cos$1(adLambda),
+        v = k * sdLambda * sin$1(adLambda);
+    areaRingSum$1.add(atan2(v, u)); // Advance the previous points.
+
+    lambda0$1 = lambda, cosPhi0 = cosPhi, sinPhi0 = sinPhi;
+  }
+
+  function geoArea$1 (object) {
+    areaSum$1 = new Adder();
+    geoStream(object, areaStream$1);
+    return areaSum$1 * 2;
+  }
+
+  function spherical(cartesian) {
+    return [atan2(cartesian[1], cartesian[0]), asin$1(cartesian[2])];
+  }
+  function cartesian(spherical) {
+    var lambda = spherical[0],
+        phi = spherical[1],
+        cosPhi = cos$1(phi);
+    return [cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi)];
+  }
+  function cartesianDot(a, b) {
+    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
+  }
+  function cartesianCross(a, b) {
+    return [a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0]];
+  } // TODO return a
+
+  function cartesianAddInPlace(a, b) {
+    a[0] += b[0], a[1] += b[1], a[2] += b[2];
+  }
+  function cartesianScale(vector, k) {
+    return [vector[0] * k, vector[1] * k, vector[2] * k];
+  } // TODO return d
+
+  function cartesianNormalizeInPlace(d) {
+    var l = sqrt$1(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]);
+    d[0] /= l, d[1] /= l, d[2] /= l;
+  }
+
+  var lambda0, phi0, lambda1, phi1, // bounds
+  lambda2, // previous lambda-coordinate
+  lambda00$1, phi00$1, // first point
+  p0, // previous 3D point
+  deltaSum, ranges, range$2;
+  var boundsStream$2 = {
+    point: boundsPoint$1,
+    lineStart: boundsLineStart,
+    lineEnd: boundsLineEnd,
+    polygonStart: function () {
+      boundsStream$2.point = boundsRingPoint;
+      boundsStream$2.lineStart = boundsRingStart;
+      boundsStream$2.lineEnd = boundsRingEnd;
+      deltaSum = new Adder();
+      areaStream$1.polygonStart();
+    },
+    polygonEnd: function () {
+      areaStream$1.polygonEnd();
+      boundsStream$2.point = boundsPoint$1;
+      boundsStream$2.lineStart = boundsLineStart;
+      boundsStream$2.lineEnd = boundsLineEnd;
+      if (areaRingSum$1 < 0) lambda0 = -(lambda1 = 180), phi0 = -(phi1 = 90);else if (deltaSum > epsilon$2) phi1 = 90;else if (deltaSum < -epsilon$2) phi0 = -90;
+      range$2[0] = lambda0, range$2[1] = lambda1;
+    },
+    sphere: function () {
+      lambda0 = -(lambda1 = 180), phi0 = -(phi1 = 90);
+    }
+  };
+
+  function boundsPoint$1(lambda, phi) {
+    ranges.push(range$2 = [lambda0 = lambda, lambda1 = lambda]);
+    if (phi < phi0) phi0 = phi;
+    if (phi > phi1) phi1 = phi;
+  }
+
+  function linePoint(lambda, phi) {
+    var p = cartesian([lambda * radians, phi * radians]);
+
+    if (p0) {
+      var normal = cartesianCross(p0, p),
+          equatorial = [normal[1], -normal[0], 0],
+          inflection = cartesianCross(equatorial, normal);
+      cartesianNormalizeInPlace(inflection);
+      inflection = spherical(inflection);
+      var delta = lambda - lambda2,
+          sign = delta > 0 ? 1 : -1,
+          lambdai = inflection[0] * degrees * sign,
+          phii,
+          antimeridian = abs$1(delta) > 180;
+
+      if (antimeridian ^ (sign * lambda2 < lambdai && lambdai < sign * lambda)) {
+        phii = inflection[1] * degrees;
+        if (phii > phi1) phi1 = phii;
+      } else if (lambdai = (lambdai + 360) % 360 - 180, antimeridian ^ (sign * lambda2 < lambdai && lambdai < sign * lambda)) {
+        phii = -inflection[1] * degrees;
+        if (phii < phi0) phi0 = phii;
+      } else {
+        if (phi < phi0) phi0 = phi;
+        if (phi > phi1) phi1 = phi;
+      }
+
+      if (antimeridian) {
+        if (lambda < lambda2) {
+          if (angle(lambda0, lambda) > angle(lambda0, lambda1)) lambda1 = lambda;
+        } else {
+          if (angle(lambda, lambda1) > angle(lambda0, lambda1)) lambda0 = lambda;
+        }
+      } else {
+        if (lambda1 >= lambda0) {
+          if (lambda < lambda0) lambda0 = lambda;
+          if (lambda > lambda1) lambda1 = lambda;
+        } else {
+          if (lambda > lambda2) {
+            if (angle(lambda0, lambda) > angle(lambda0, lambda1)) lambda1 = lambda;
+          } else {
+            if (angle(lambda, lambda1) > angle(lambda0, lambda1)) lambda0 = lambda;
+          }
+        }
+      }
+    } else {
+      ranges.push(range$2 = [lambda0 = lambda, lambda1 = lambda]);
+    }
+
+    if (phi < phi0) phi0 = phi;
+    if (phi > phi1) phi1 = phi;
+    p0 = p, lambda2 = lambda;
+  }
+
+  function boundsLineStart() {
+    boundsStream$2.point = linePoint;
+  }
+
+  function boundsLineEnd() {
+    range$2[0] = lambda0, range$2[1] = lambda1;
+    boundsStream$2.point = boundsPoint$1;
+    p0 = null;
+  }
+
+  function boundsRingPoint(lambda, phi) {
+    if (p0) {
+      var delta = lambda - lambda2;
+      deltaSum.add(abs$1(delta) > 180 ? delta + (delta > 0 ? 360 : -360) : delta);
+    } else {
+      lambda00$1 = lambda, phi00$1 = phi;
+    }
+
+    areaStream$1.point(lambda, phi);
+    linePoint(lambda, phi);
+  }
+
+  function boundsRingStart() {
+    areaStream$1.lineStart();
+  }
+
+  function boundsRingEnd() {
+    boundsRingPoint(lambda00$1, phi00$1);
+    areaStream$1.lineEnd();
+    if (abs$1(deltaSum) > epsilon$2) lambda0 = -(lambda1 = 180);
+    range$2[0] = lambda0, range$2[1] = lambda1;
+    p0 = null;
+  } // Finds the left-right distance between two longitudes.
+  // This is almost the same as (lambda1 - lambda0 + 360°) % 360°, except that we want
+  // the distance between ±180° to be 360°.
+
+
+  function angle(lambda0, lambda1) {
+    return (lambda1 -= lambda0) < 0 ? lambda1 + 360 : lambda1;
+  }
+
+  function rangeCompare(a, b) {
+    return a[0] - b[0];
+  }
+
+  function rangeContains(range, x) {
+    return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x;
+  }
+
+  function geoBounds$1 (feature) {
+    var i, n, a, b, merged, deltaMax, delta;
+    phi1 = lambda1 = -(lambda0 = phi0 = Infinity);
+    ranges = [];
+    geoStream(feature, boundsStream$2); // First, sort ranges by their minimum longitudes.
+
+    if (n = ranges.length) {
+      ranges.sort(rangeCompare); // Then, merge any ranges that overlap.
+
+      for (i = 1, a = ranges[0], merged = [a]; i < n; ++i) {
+        b = ranges[i];
+
+        if (rangeContains(a, b[0]) || rangeContains(a, b[1])) {
+          if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1];
+          if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0];
+        } else {
+          merged.push(a = b);
+        }
+      } // Finally, find the largest gap between the merged ranges.
+      // The final bounding box will be the inverse of this gap.
+
+
+      for (deltaMax = -Infinity, n = merged.length - 1, i = 0, a = merged[n]; i <= n; a = b, ++i) {
+        b = merged[i];
+        if ((delta = angle(a[1], b[0])) > deltaMax) deltaMax = delta, lambda0 = b[0], lambda1 = a[1];
+      }
+    }
+
+    ranges = range$2 = null;
+    return lambda0 === Infinity || phi0 === Infinity ? [[NaN, NaN], [NaN, NaN]] : [[lambda0, phi0], [lambda1, phi1]];
+  }
+
+  var W0, W1, X0$1, Y0$1, Z0$1, X1$1, Y1$1, Z1$1, X2$1, Y2$1, Z2$1, lambda00, phi00, // first point
+  x0$4, y0$4, z0; // previous point
+
+  var centroidStream$1 = {
+    sphere: noop$2,
+    point: centroidPoint$1,
+    lineStart: centroidLineStart$1,
+    lineEnd: centroidLineEnd$1,
+    polygonStart: function () {
+      centroidStream$1.lineStart = centroidRingStart$1;
+      centroidStream$1.lineEnd = centroidRingEnd$1;
+    },
+    polygonEnd: function () {
+      centroidStream$1.lineStart = centroidLineStart$1;
+      centroidStream$1.lineEnd = centroidLineEnd$1;
+    }
+  }; // Arithmetic mean of Cartesian vectors.
+
+  function centroidPoint$1(lambda, phi) {
+    lambda *= radians, phi *= radians;
+    var cosPhi = cos$1(phi);
+    centroidPointCartesian(cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi));
+  }
+
+  function centroidPointCartesian(x, y, z) {
+    ++W0;
+    X0$1 += (x - X0$1) / W0;
+    Y0$1 += (y - Y0$1) / W0;
+    Z0$1 += (z - Z0$1) / W0;
+  }
+
+  function centroidLineStart$1() {
+    centroidStream$1.point = centroidLinePointFirst;
+  }
+
+  function centroidLinePointFirst(lambda, phi) {
+    lambda *= radians, phi *= radians;
+    var cosPhi = cos$1(phi);
+    x0$4 = cosPhi * cos$1(lambda);
+    y0$4 = cosPhi * sin$1(lambda);
+    z0 = sin$1(phi);
+    centroidStream$1.point = centroidLinePoint;
+    centroidPointCartesian(x0$4, y0$4, z0);
+  }
+
+  function centroidLinePoint(lambda, phi) {
+    lambda *= radians, phi *= radians;
+    var cosPhi = cos$1(phi),
+        x = cosPhi * cos$1(lambda),
+        y = cosPhi * sin$1(lambda),
+        z = sin$1(phi),
+        w = atan2(sqrt$1((w = y0$4 * z - z0 * y) * w + (w = z0 * x - x0$4 * z) * w + (w = x0$4 * y - y0$4 * x) * w), x0$4 * x + y0$4 * y + z0 * z);
+    W1 += w;
+    X1$1 += w * (x0$4 + (x0$4 = x));
+    Y1$1 += w * (y0$4 + (y0$4 = y));
+    Z1$1 += w * (z0 + (z0 = z));
+    centroidPointCartesian(x0$4, y0$4, z0);
+  }
+
+  function centroidLineEnd$1() {
+    centroidStream$1.point = centroidPoint$1;
+  } // See J. E. Brock, The Inertia Tensor for a Spherical Triangle,
+  // J. Applied Mechanics 42, 239 (1975).
+
+
+  function centroidRingStart$1() {
+    centroidStream$1.point = centroidRingPointFirst;
+  }
+
+  function centroidRingEnd$1() {
+    centroidRingPoint(lambda00, phi00);
+    centroidStream$1.point = centroidPoint$1;
+  }
+
+  function centroidRingPointFirst(lambda, phi) {
+    lambda00 = lambda, phi00 = phi;
+    lambda *= radians, phi *= radians;
+    centroidStream$1.point = centroidRingPoint;
+    var cosPhi = cos$1(phi);
+    x0$4 = cosPhi * cos$1(lambda);
+    y0$4 = cosPhi * sin$1(lambda);
+    z0 = sin$1(phi);
+    centroidPointCartesian(x0$4, y0$4, z0);
+  }
+
+  function centroidRingPoint(lambda, phi) {
+    lambda *= radians, phi *= radians;
+    var cosPhi = cos$1(phi),
+        x = cosPhi * cos$1(lambda),
+        y = cosPhi * sin$1(lambda),
+        z = sin$1(phi),
+        cx = y0$4 * z - z0 * y,
+        cy = z0 * x - x0$4 * z,
+        cz = x0$4 * y - y0$4 * x,
+        m = hypot(cx, cy, cz),
+        w = asin$1(m),
+        // line weight = angle
+    v = m && -w / m; // area weight multiplier
+
+    X2$1.add(v * cx);
+    Y2$1.add(v * cy);
+    Z2$1.add(v * cz);
+    W1 += w;
+    X1$1 += w * (x0$4 + (x0$4 = x));
+    Y1$1 += w * (y0$4 + (y0$4 = y));
+    Z1$1 += w * (z0 + (z0 = z));
+    centroidPointCartesian(x0$4, y0$4, z0);
+  }
+
+  function geoCentroid$1 (object) {
+    W0 = W1 = X0$1 = Y0$1 = Z0$1 = X1$1 = Y1$1 = Z1$1 = 0;
+    X2$1 = new Adder();
+    Y2$1 = new Adder();
+    Z2$1 = new Adder();
+    geoStream(object, centroidStream$1);
+    var x = +X2$1,
+        y = +Y2$1,
+        z = +Z2$1,
+        m = hypot(x, y, z); // If the area-weighted ccentroid is undefined, fall back to length-weighted ccentroid.
+
+    if (m < epsilon2) {
+      x = X1$1, y = Y1$1, z = Z1$1; // If the feature has zero length, fall back to arithmetic mean of point vectors.
+
+      if (W1 < epsilon$2) x = X0$1, y = Y0$1, z = Z0$1;
+      m = hypot(x, y, z); // If the feature still has an undefined ccentroid, then return.
+
+      if (m < epsilon2) return [NaN, NaN];
+    }
+
+    return [atan2(y, x) * degrees, asin$1(z / m) * degrees];
+  }
+
+  function compose (a, b) {
+    function compose(x, y) {
+      return x = a(x, y), b(x[0], x[1]);
+    }
+
+    if (a.invert && b.invert) compose.invert = function (x, y) {
+      return x = b.invert(x, y), x && a.invert(x[0], x[1]);
+    };
+    return compose;
+  }
+
+  function rotationIdentity(lambda, phi) {
+    return [abs$1(lambda) > pi$1 ? lambda + Math.round(-lambda / tau$1) * tau$1 : lambda, phi];
+  }
+
+  rotationIdentity.invert = rotationIdentity;
+  function rotateRadians(deltaLambda, deltaPhi, deltaGamma) {
+    return (deltaLambda %= tau$1) ? deltaPhi || deltaGamma ? compose(rotationLambda(deltaLambda), rotationPhiGamma(deltaPhi, deltaGamma)) : rotationLambda(deltaLambda) : deltaPhi || deltaGamma ? rotationPhiGamma(deltaPhi, deltaGamma) : rotationIdentity;
+  }
+
+  function forwardRotationLambda(deltaLambda) {
+    return function (lambda, phi) {
+      return lambda += deltaLambda, [lambda > pi$1 ? lambda - tau$1 : lambda < -pi$1 ? lambda + tau$1 : lambda, phi];
+    };
+  }
+
+  function rotationLambda(deltaLambda) {
+    var rotation = forwardRotationLambda(deltaLambda);
+    rotation.invert = forwardRotationLambda(-deltaLambda);
+    return rotation;
+  }
+
+  function rotationPhiGamma(deltaPhi, deltaGamma) {
+    var cosDeltaPhi = cos$1(deltaPhi),
+        sinDeltaPhi = sin$1(deltaPhi),
+        cosDeltaGamma = cos$1(deltaGamma),
+        sinDeltaGamma = sin$1(deltaGamma);
+
+    function rotation(lambda, phi) {
+      var cosPhi = cos$1(phi),
+          x = cos$1(lambda) * cosPhi,
+          y = sin$1(lambda) * cosPhi,
+          z = sin$1(phi),
+          k = z * cosDeltaPhi + x * sinDeltaPhi;
+      return [atan2(y * cosDeltaGamma - k * sinDeltaGamma, x * cosDeltaPhi - z * sinDeltaPhi), asin$1(k * cosDeltaGamma + y * sinDeltaGamma)];
+    }
+
+    rotation.invert = function (lambda, phi) {
+      var cosPhi = cos$1(phi),
+          x = cos$1(lambda) * cosPhi,
+          y = sin$1(lambda) * cosPhi,
+          z = sin$1(phi),
+          k = z * cosDeltaGamma - y * sinDeltaGamma;
+      return [atan2(y * cosDeltaGamma + z * sinDeltaGamma, x * cosDeltaPhi + k * sinDeltaPhi), asin$1(k * cosDeltaPhi - x * sinDeltaPhi)];
+    };
+
+    return rotation;
+  }
+
+  function rotation (rotate) {
+    rotate = rotateRadians(rotate[0] * radians, rotate[1] * radians, rotate.length > 2 ? rotate[2] * radians : 0);
+
+    function forward(coordinates) {
+      coordinates = rotate(coordinates[0] * radians, coordinates[1] * radians);
+      return coordinates[0] *= degrees, coordinates[1] *= degrees, coordinates;
+    }
+
+    forward.invert = function (coordinates) {
+      coordinates = rotate.invert(coordinates[0] * radians, coordinates[1] * radians);
+      return coordinates[0] *= degrees, coordinates[1] *= degrees, coordinates;
+    };
+
+    return forward;
+  }
+
+  function circleStream(stream, radius, delta, direction, t0, t1) {
+    if (!delta) return;
+    var cosRadius = cos$1(radius),
+        sinRadius = sin$1(radius),
+        step = direction * delta;
+
+    if (t0 == null) {
+      t0 = radius + direction * tau$1;
+      t1 = radius - step / 2;
+    } else {
+      t0 = circleRadius(cosRadius, t0);
+      t1 = circleRadius(cosRadius, t1);
+      if (direction > 0 ? t0 < t1 : t0 > t1) t0 += direction * tau$1;
+    }
+
+    for (var point, t = t0; direction > 0 ? t > t1 : t < t1; t -= step) {
+      point = spherical([cosRadius, -sinRadius * cos$1(t), -sinRadius * sin$1(t)]);
+      stream.point(point[0], point[1]);
+    }
+  } // Returns the signed angle of a cartesian point relative to [cosRadius, 0, 0].
+
+  function circleRadius(cosRadius, point) {
+    point = cartesian(point), point[0] -= cosRadius;
+    cartesianNormalizeInPlace(point);
+    var radius = acos(-point[1]);
+    return ((-point[2] < 0 ? -radius : radius) + tau$1 - epsilon$2) % tau$1;
+  }
+
+  function clipBuffer () {
+    var lines = [],
+        line;
+    return {
+      point: function (x, y, m) {
+        line.push([x, y, m]);
+      },
+      lineStart: function () {
+        lines.push(line = []);
+      },
+      lineEnd: noop$2,
+      rejoin: function () {
+        if (lines.length > 1) lines.push(lines.pop().concat(lines.shift()));
+      },
+      result: function () {
+        var result = lines;
+        lines = [];
+        line = null;
+        return result;
+      }
+    };
+  }
+
+  function pointEqual (a, b) {
+    return abs$1(a[0] - b[0]) < epsilon$2 && abs$1(a[1] - b[1]) < epsilon$2;
+  }
+
+  function Intersection(point, points, other, entry) {
+    this.x = point;
+    this.z = points;
+    this.o = other; // another intersection
+
+    this.e = entry; // is an entry?
+
+    this.v = false; // visited
+
+    this.n = this.p = null; // next & previous
+  } // A generalized polygon clipping algorithm: given a polygon that has been cut
+  // into its visible line segments, and rejoins the segments by interpolating
+  // along the clip edge.
+
+
+  function clipRejoin (segments, compareIntersection, startInside, interpolate, stream) {
+    var subject = [],
+        clip = [],
+        i,
+        n;
+    segments.forEach(function (segment) {
+      if ((n = segment.length - 1) <= 0) return;
+      var n,
+          p0 = segment[0],
+          p1 = segment[n],
+          x;
+
+      if (pointEqual(p0, p1)) {
+        if (!p0[2] && !p1[2]) {
+          stream.lineStart();
+
+          for (i = 0; i < n; ++i) stream.point((p0 = segment[i])[0], p0[1]);
+
+          stream.lineEnd();
+          return;
+        } // handle degenerate cases by moving the point
+
+
+        p1[0] += 2 * epsilon$2;
+      }
+
+      subject.push(x = new Intersection(p0, segment, null, true));
+      clip.push(x.o = new Intersection(p0, null, x, false));
+      subject.push(x = new Intersection(p1, segment, null, false));
+      clip.push(x.o = new Intersection(p1, null, x, true));
+    });
+    if (!subject.length) return;
+    clip.sort(compareIntersection);
+    link(subject);
+    link(clip);
+
+    for (i = 0, n = clip.length; i < n; ++i) {
+      clip[i].e = startInside = !startInside;
+    }
+
+    var start = subject[0],
+        points,
+        point;
+
+    while (1) {
+      // Find first unvisited intersection.
+      var current = start,
+          isSubject = true;
+
+      while (current.v) if ((current = current.n) === start) return;
+
+      points = current.z;
+      stream.lineStart();
+
+      do {
+        current.v = current.o.v = true;
+
+        if (current.e) {
+          if (isSubject) {
+            for (i = 0, n = points.length; i < n; ++i) stream.point((point = points[i])[0], point[1]);
+          } else {
+            interpolate(current.x, current.n.x, 1, stream);
+          }
+
+          current = current.n;
+        } else {
+          if (isSubject) {
+            points = current.p.z;
+
+            for (i = points.length - 1; i >= 0; --i) stream.point((point = points[i])[0], point[1]);
+          } else {
+            interpolate(current.x, current.p.x, -1, stream);
+          }
+
+          current = current.p;
+        }
+
+        current = current.o;
+        points = current.z;
+        isSubject = !isSubject;
+      } while (!current.v);
+
+      stream.lineEnd();
+    }
+  }
+
+  function link(array) {
+    if (!(n = array.length)) return;
+    var n,
+        i = 0,
+        a = array[0],
+        b;
+
+    while (++i < n) {
+      a.n = b = array[i];
+      b.p = a;
+      a = b;
+    }
+
+    a.n = b = array[0];
+    b.p = a;
+  }
+
+  function longitude(point) {
+    if (abs$1(point[0]) <= pi$1) return point[0];else return sign(point[0]) * ((abs$1(point[0]) + pi$1) % tau$1 - pi$1);
+  }
+
+  function polygonContains (polygon, point) {
+    var lambda = longitude(point),
+        phi = point[1],
+        sinPhi = sin$1(phi),
+        normal = [sin$1(lambda), -cos$1(lambda), 0],
+        angle = 0,
+        winding = 0;
+    var sum = new Adder();
+    if (sinPhi === 1) phi = halfPi$1 + epsilon$2;else if (sinPhi === -1) phi = -halfPi$1 - epsilon$2;
+
+    for (var i = 0, n = polygon.length; i < n; ++i) {
+      if (!(m = (ring = polygon[i]).length)) continue;
+      var ring,
+          m,
+          point0 = ring[m - 1],
+          lambda0 = longitude(point0),
+          phi0 = point0[1] / 2 + quarterPi,
+          sinPhi0 = sin$1(phi0),
+          cosPhi0 = cos$1(phi0);
+
+      for (var j = 0; j < m; ++j, lambda0 = lambda1, sinPhi0 = sinPhi1, cosPhi0 = cosPhi1, point0 = point1) {
+        var point1 = ring[j],
+            lambda1 = longitude(point1),
+            phi1 = point1[1] / 2 + quarterPi,
+            sinPhi1 = sin$1(phi1),
+            cosPhi1 = cos$1(phi1),
+            delta = lambda1 - lambda0,
+            sign = delta >= 0 ? 1 : -1,
+            absDelta = sign * delta,
+            antimeridian = absDelta > pi$1,
+            k = sinPhi0 * sinPhi1;
+        sum.add(atan2(k * sign * sin$1(absDelta), cosPhi0 * cosPhi1 + k * cos$1(absDelta)));
+        angle += antimeridian ? delta + sign * tau$1 : delta; // Are the longitudes either side of the point’s meridian (lambda),
+        // and are the latitudes smaller than the parallel (phi)?
+
+        if (antimeridian ^ lambda0 >= lambda ^ lambda1 >= lambda) {
+          var arc = cartesianCross(cartesian(point0), cartesian(point1));
+          cartesianNormalizeInPlace(arc);
+          var intersection = cartesianCross(normal, arc);
+          cartesianNormalizeInPlace(intersection);
+          var phiArc = (antimeridian ^ delta >= 0 ? -1 : 1) * asin$1(intersection[2]);
+
+          if (phi > phiArc || phi === phiArc && (arc[0] || arc[1])) {
+            winding += antimeridian ^ delta >= 0 ? 1 : -1;
+          }
+        }
+      }
+    } // First, determine whether the South pole is inside or outside:
+    //
+    // It is inside if:
+    // * the polygon winds around it in a clockwise direction.
+    // * the polygon does not (cumulatively) wind around it, but has a negative
+    //   (counter-clockwise) area.
+    //
+    // Second, count the (signed) number of times a segment crosses a lambda
+    // from the point to the South pole.  If it is zero, then the point is the
+    // same side as the South pole.
+
+
+    return (angle < -epsilon$2 || angle < epsilon$2 && sum < -epsilon2) ^ winding & 1;
+  }
+
+  function clip$1 (pointVisible, clipLine, interpolate, start) {
+    return function (sink) {
+      var line = clipLine(sink),
+          ringBuffer = clipBuffer(),
+          ringSink = clipLine(ringBuffer),
+          polygonStarted = false,
+          polygon,
+          segments,
+          ring;
+      var clip = {
+        point: point,
+        lineStart: lineStart,
+        lineEnd: lineEnd,
+        polygonStart: function () {
+          clip.point = pointRing;
+          clip.lineStart = ringStart;
+          clip.lineEnd = ringEnd;
+          segments = [];
+          polygon = [];
+        },
+        polygonEnd: function () {
+          clip.point = point;
+          clip.lineStart = lineStart;
+          clip.lineEnd = lineEnd;
+          segments = merge$2(segments);
+          var startInside = polygonContains(polygon, start);
+
+          if (segments.length) {
+            if (!polygonStarted) sink.polygonStart(), polygonStarted = true;
+            clipRejoin(segments, compareIntersection, startInside, interpolate, sink);
+          } else if (startInside) {
+            if (!polygonStarted) sink.polygonStart(), polygonStarted = true;
+            sink.lineStart();
+            interpolate(null, null, 1, sink);
+            sink.lineEnd();
+          }
+
+          if (polygonStarted) sink.polygonEnd(), polygonStarted = false;
+          segments = polygon = null;
+        },
+        sphere: function () {
+          sink.polygonStart();
+          sink.lineStart();
+          interpolate(null, null, 1, sink);
+          sink.lineEnd();
+          sink.polygonEnd();
+        }
+      };
+
+      function point(lambda, phi) {
+        if (pointVisible(lambda, phi)) sink.point(lambda, phi);
+      }
+
+      function pointLine(lambda, phi) {
+        line.point(lambda, phi);
+      }
+
+      function lineStart() {
+        clip.point = pointLine;
+        line.lineStart();
+      }
+
+      function lineEnd() {
+        clip.point = point;
+        line.lineEnd();
+      }
+
+      function pointRing(lambda, phi) {
+        ring.push([lambda, phi]);
+        ringSink.point(lambda, phi);
+      }
+
+      function ringStart() {
+        ringSink.lineStart();
+        ring = [];
+      }
+
+      function ringEnd() {
+        pointRing(ring[0][0], ring[0][1]);
+        ringSink.lineEnd();
+        var clean = ringSink.clean(),
+            ringSegments = ringBuffer.result(),
+            i,
+            n = ringSegments.length,
+            m,
+            segment,
+            point;
+        ring.pop();
+        polygon.push(ring);
+        ring = null;
+        if (!n) return; // No intersections.
+
+        if (clean & 1) {
+          segment = ringSegments[0];
+
+          if ((m = segment.length - 1) > 0) {
+            if (!polygonStarted) sink.polygonStart(), polygonStarted = true;
+            sink.lineStart();
+
+            for (i = 0; i < m; ++i) sink.point((point = segment[i])[0], point[1]);
+
+            sink.lineEnd();
+          }
+
+          return;
+        } // Rejoin connected segments.
+        // TODO reuse ringBuffer.rejoin()?
+
+
+        if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift()));
+        segments.push(ringSegments.filter(validSegment));
+      }
+
+      return clip;
+    };
+  }
+
+  function validSegment(segment) {
+    return segment.length > 1;
+  } // Intersections are sorted along the clip edge. For both antimeridian cutting
+  // and circle clipping, the same comparison is used.
+
+
+  function compareIntersection(a, b) {
+    return ((a = a.x)[0] < 0 ? a[1] - halfPi$1 - epsilon$2 : halfPi$1 - a[1]) - ((b = b.x)[0] < 0 ? b[1] - halfPi$1 - epsilon$2 : halfPi$1 - b[1]);
+  }
+
+  var clipAntimeridian = clip$1(function () {
+    return true;
+  }, clipAntimeridianLine, clipAntimeridianInterpolate, [-pi$1, -halfPi$1]); // Takes a line and cuts into visible segments. Return values: 0 - there were
+  // intersections or the line was empty; 1 - no intersections; 2 - there were
+  // intersections, and the first and last segments should be rejoined.
+
+  function clipAntimeridianLine(stream) {
+    var lambda0 = NaN,
+        phi0 = NaN,
+        sign0 = NaN,
+        clean; // no intersections
+
+    return {
+      lineStart: function () {
+        stream.lineStart();
+        clean = 1;
+      },
+      point: function (lambda1, phi1) {
+        var sign1 = lambda1 > 0 ? pi$1 : -pi$1,
+            delta = abs$1(lambda1 - lambda0);
+
+        if (abs$1(delta - pi$1) < epsilon$2) {
+          // line crosses a pole
+          stream.point(lambda0, phi0 = (phi0 + phi1) / 2 > 0 ? halfPi$1 : -halfPi$1);
+          stream.point(sign0, phi0);
+          stream.lineEnd();
+          stream.lineStart();
+          stream.point(sign1, phi0);
+          stream.point(lambda1, phi0);
+          clean = 0;
+        } else if (sign0 !== sign1 && delta >= pi$1) {
+          // line crosses antimeridian
+          if (abs$1(lambda0 - sign0) < epsilon$2) lambda0 -= sign0 * epsilon$2; // handle degeneracies
+
+          if (abs$1(lambda1 - sign1) < epsilon$2) lambda1 -= sign1 * epsilon$2;
+          phi0 = clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1);
+          stream.point(sign0, phi0);
+          stream.lineEnd();
+          stream.lineStart();
+          stream.point(sign1, phi0);
+          clean = 0;
+        }
+
+        stream.point(lambda0 = lambda1, phi0 = phi1);
+        sign0 = sign1;
+      },
+      lineEnd: function () {
+        stream.lineEnd();
+        lambda0 = phi0 = NaN;
+      },
+      clean: function () {
+        return 2 - clean; // if intersections, rejoin first and last segments
+      }
+    };
+  }
+
+  function clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1) {
+    var cosPhi0,
+        cosPhi1,
+        sinLambda0Lambda1 = sin$1(lambda0 - lambda1);
+    return abs$1(sinLambda0Lambda1) > epsilon$2 ? atan((sin$1(phi0) * (cosPhi1 = cos$1(phi1)) * sin$1(lambda1) - sin$1(phi1) * (cosPhi0 = cos$1(phi0)) * sin$1(lambda0)) / (cosPhi0 * cosPhi1 * sinLambda0Lambda1)) : (phi0 + phi1) / 2;
+  }
+
+  function clipAntimeridianInterpolate(from, to, direction, stream) {
+    var phi;
+
+    if (from == null) {
+      phi = direction * halfPi$1;
+      stream.point(-pi$1, phi);
+      stream.point(0, phi);
+      stream.point(pi$1, phi);
+      stream.point(pi$1, 0);
+      stream.point(pi$1, -phi);
+      stream.point(0, -phi);
+      stream.point(-pi$1, -phi);
+      stream.point(-pi$1, 0);
+      stream.point(-pi$1, phi);
+    } else if (abs$1(from[0] - to[0]) > epsilon$2) {
+      var lambda = from[0] < to[0] ? pi$1 : -pi$1;
+      phi = direction * lambda / 2;
+      stream.point(-lambda, phi);
+      stream.point(0, phi);
+      stream.point(lambda, phi);
+    } else {
+      stream.point(to[0], to[1]);
+    }
+  }
+
+  function clipCircle (radius) {
+    var cr = cos$1(radius),
+        delta = 6 * radians,
+        smallRadius = cr > 0,
+        notHemisphere = abs$1(cr) > epsilon$2; // TODO optimise for this common case
+
+    function interpolate(from, to, direction, stream) {
+      circleStream(stream, radius, delta, direction, from, to);
+    }
+
+    function visible(lambda, phi) {
+      return cos$1(lambda) * cos$1(phi) > cr;
+    } // Takes a line and cuts into visible segments. Return values used for polygon
+    // clipping: 0 - there were intersections or the line was empty; 1 - no
+    // intersections 2 - there were intersections, and the first and last segments
+    // should be rejoined.
+
+
+    function clipLine(stream) {
+      var point0, // previous point
+      c0, // code for previous point
+      v0, // visibility of previous point
+      v00, // visibility of first point
+      clean; // no intersections
+
+      return {
+        lineStart: function () {
+          v00 = v0 = false;
+          clean = 1;
+        },
+        point: function (lambda, phi) {
+          var point1 = [lambda, phi],
+              point2,
+              v = visible(lambda, phi),
+              c = smallRadius ? v ? 0 : code(lambda, phi) : v ? code(lambda + (lambda < 0 ? pi$1 : -pi$1), phi) : 0;
+          if (!point0 && (v00 = v0 = v)) stream.lineStart();
+
+          if (v !== v0) {
+            point2 = intersect(point0, point1);
+            if (!point2 || pointEqual(point0, point2) || pointEqual(point1, point2)) point1[2] = 1;
+          }
+
+          if (v !== v0) {
+            clean = 0;
+
+            if (v) {
+              // outside going in
+              stream.lineStart();
+              point2 = intersect(point1, point0);
+              stream.point(point2[0], point2[1]);
+            } else {
+              // inside going out
+              point2 = intersect(point0, point1);
+              stream.point(point2[0], point2[1], 2);
+              stream.lineEnd();
+            }
+
+            point0 = point2;
+          } else if (notHemisphere && point0 && smallRadius ^ v) {
+            var t; // If the codes for two points are different, or are both zero,
+            // and there this segment intersects with the small circle.
+
+            if (!(c & c0) && (t = intersect(point1, point0, true))) {
+              clean = 0;
+
+              if (smallRadius) {
+                stream.lineStart();
+                stream.point(t[0][0], t[0][1]);
+                stream.point(t[1][0], t[1][1]);
+                stream.lineEnd();
+              } else {
+                stream.point(t[1][0], t[1][1]);
+                stream.lineEnd();
+                stream.lineStart();
+                stream.point(t[0][0], t[0][1], 3);
+              }
+            }
+          }
+
+          if (v && (!point0 || !pointEqual(point0, point1))) {
+            stream.point(point1[0], point1[1]);
+          }
+
+          point0 = point1, v0 = v, c0 = c;
+        },
+        lineEnd: function () {
+          if (v0) stream.lineEnd();
+          point0 = null;
+        },
+        // Rejoin first and last segments if there were intersections and the first
+        // and last points were visible.
+        clean: function () {
+          return clean | (v00 && v0) << 1;
+        }
+      };
+    } // Intersects the great circle between a and b with the clip circle.
+
+
+    function intersect(a, b, two) {
+      var pa = cartesian(a),
+          pb = cartesian(b); // We have two planes, n1.p = d1 and n2.p = d2.
+      // Find intersection line p(t) = c1 n1 + c2 n2 + t (n1 ⨯ n2).
+
+      var n1 = [1, 0, 0],
+          // normal
+      n2 = cartesianCross(pa, pb),
+          n2n2 = cartesianDot(n2, n2),
+          n1n2 = n2[0],
+          // cartesianDot(n1, n2),
+      determinant = n2n2 - n1n2 * n1n2; // Two polar points.
+
+      if (!determinant) return !two && a;
+      var c1 = cr * n2n2 / determinant,
+          c2 = -cr * n1n2 / determinant,
+          n1xn2 = cartesianCross(n1, n2),
+          A = cartesianScale(n1, c1),
+          B = cartesianScale(n2, c2);
+      cartesianAddInPlace(A, B); // Solve |p(t)|^2 = 1.
+
+      var u = n1xn2,
+          w = cartesianDot(A, u),
+          uu = cartesianDot(u, u),
+          t2 = w * w - uu * (cartesianDot(A, A) - 1);
+      if (t2 < 0) return;
+      var t = sqrt$1(t2),
+          q = cartesianScale(u, (-w - t) / uu);
+      cartesianAddInPlace(q, A);
+      q = spherical(q);
+      if (!two) return q; // Two intersection points.
+
+      var lambda0 = a[0],
+          lambda1 = b[0],
+          phi0 = a[1],
+          phi1 = b[1],
+          z;
+      if (lambda1 < lambda0) z = lambda0, lambda0 = lambda1, lambda1 = z;
+      var delta = lambda1 - lambda0,
+          polar = abs$1(delta - pi$1) < epsilon$2,
+          meridian = polar || delta < epsilon$2;
+      if (!polar && phi1 < phi0) z = phi0, phi0 = phi1, phi1 = z; // Check that the first point is between a and b.
+
+      if (meridian ? polar ? phi0 + phi1 > 0 ^ q[1] < (abs$1(q[0] - lambda0) < epsilon$2 ? phi0 : phi1) : phi0 <= q[1] && q[1] <= phi1 : delta > pi$1 ^ (lambda0 <= q[0] && q[0] <= lambda1)) {
+        var q1 = cartesianScale(u, (-w + t) / uu);
+        cartesianAddInPlace(q1, A);
+        return [q, spherical(q1)];
+      }
+    } // Generates a 4-bit vector representing the location of a point relative to
+    // the small circle's bounding box.
+
+
+    function code(lambda, phi) {
+      var r = smallRadius ? radius : pi$1 - radius,
+          code = 0;
+      if (lambda < -r) code |= 1; // left
+      else if (lambda > r) code |= 2; // right
+
+      if (phi < -r) code |= 4; // below
+      else if (phi > r) code |= 8; // above
+
+      return code;
+    }
+
+    return clip$1(visible, clipLine, interpolate, smallRadius ? [0, -radius] : [-pi$1, radius - pi$1]);
+  }
+
+  function clipLine (a, b, x0, y0, x1, y1) {
+    var ax = a[0],
+        ay = a[1],
+        bx = b[0],
+        by = b[1],
+        t0 = 0,
+        t1 = 1,
+        dx = bx - ax,
+        dy = by - ay,
+        r;
+    r = x0 - ax;
+    if (!dx && r > 0) return;
+    r /= dx;
+
+    if (dx < 0) {
+      if (r < t0) return;
+      if (r < t1) t1 = r;
+    } else if (dx > 0) {
+      if (r > t1) return;
+      if (r > t0) t0 = r;
+    }
+
+    r = x1 - ax;
+    if (!dx && r < 0) return;
+    r /= dx;
+
+    if (dx < 0) {
+      if (r > t1) return;
+      if (r > t0) t0 = r;
+    } else if (dx > 0) {
+      if (r < t0) return;
+      if (r < t1) t1 = r;
+    }
+
+    r = y0 - ay;
+    if (!dy && r > 0) return;
+    r /= dy;
+
+    if (dy < 0) {
+      if (r < t0) return;
+      if (r < t1) t1 = r;
+    } else if (dy > 0) {
+      if (r > t1) return;
+      if (r > t0) t0 = r;
+    }
+
+    r = y1 - ay;
+    if (!dy && r < 0) return;
+    r /= dy;
+
+    if (dy < 0) {
+      if (r > t1) return;
+      if (r > t0) t0 = r;
+    } else if (dy > 0) {
+      if (r < t0) return;
+      if (r < t1) t1 = r;
+    }
+
+    if (t0 > 0) a[0] = ax + t0 * dx, a[1] = ay + t0 * dy;
+    if (t1 < 1) b[0] = ax + t1 * dx, b[1] = ay + t1 * dy;
+    return true;
+  }
+
+  var clipMax = 1e9,
+      clipMin = -clipMax; // TODO Use d3-polygon’s polygonContains here for the ring check?
+  // TODO Eliminate duplicate buffering in clipBuffer and polygon.push?
+
+  function clipRectangle(x0, y0, x1, y1) {
+    function visible(x, y) {
+      return x0 <= x && x <= x1 && y0 <= y && y <= y1;
+    }
+
+    function interpolate(from, to, direction, stream) {
+      var a = 0,
+          a1 = 0;
+
+      if (from == null || (a = corner(from, direction)) !== (a1 = corner(to, direction)) || comparePoint(from, to) < 0 ^ direction > 0) {
+        do stream.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0); while ((a = (a + direction + 4) % 4) !== a1);
+      } else {
+        stream.point(to[0], to[1]);
+      }
+    }
+
+    function corner(p, direction) {
+      return abs$1(p[0] - x0) < epsilon$2 ? direction > 0 ? 0 : 3 : abs$1(p[0] - x1) < epsilon$2 ? direction > 0 ? 2 : 1 : abs$1(p[1] - y0) < epsilon$2 ? direction > 0 ? 1 : 0 : direction > 0 ? 3 : 2; // abs(p[1] - y1) < epsilon
+    }
+
+    function compareIntersection(a, b) {
+      return comparePoint(a.x, b.x);
+    }
+
+    function comparePoint(a, b) {
+      var ca = corner(a, 1),
+          cb = corner(b, 1);
+      return ca !== cb ? ca - cb : ca === 0 ? b[1] - a[1] : ca === 1 ? a[0] - b[0] : ca === 2 ? a[1] - b[1] : b[0] - a[0];
+    }
+
+    return function (stream) {
+      var activeStream = stream,
+          bufferStream = clipBuffer(),
+          segments,
+          polygon,
+          ring,
+          x__,
+          y__,
+          v__,
+          // first point
+      x_,
+          y_,
+          v_,
+          // previous point
+      first,
+          clean;
+      var clipStream = {
+        point: point,
+        lineStart: lineStart,
+        lineEnd: lineEnd,
+        polygonStart: polygonStart,
+        polygonEnd: polygonEnd
+      };
+
+      function point(x, y) {
+        if (visible(x, y)) activeStream.point(x, y);
+      }
+
+      function polygonInside() {
+        var winding = 0;
+
+        for (var i = 0, n = polygon.length; i < n; ++i) {
+          for (var ring = polygon[i], j = 1, m = ring.length, point = ring[0], a0, a1, b0 = point[0], b1 = point[1]; j < m; ++j) {
+            a0 = b0, a1 = b1, point = ring[j], b0 = point[0], b1 = point[1];
+
+            if (a1 <= y1) {
+              if (b1 > y1 && (b0 - a0) * (y1 - a1) > (b1 - a1) * (x0 - a0)) ++winding;
+            } else {
+              if (b1 <= y1 && (b0 - a0) * (y1 - a1) < (b1 - a1) * (x0 - a0)) --winding;
+            }
+          }
+        }
+
+        return winding;
+      } // Buffer geometry within a polygon and then clip it en masse.
+
+
+      function polygonStart() {
+        activeStream = bufferStream, segments = [], polygon = [], clean = true;
+      }
+
+      function polygonEnd() {
+        var startInside = polygonInside(),
+            cleanInside = clean && startInside,
+            visible = (segments = merge$2(segments)).length;
+
+        if (cleanInside || visible) {
+          stream.polygonStart();
+
+          if (cleanInside) {
+            stream.lineStart();
+            interpolate(null, null, 1, stream);
+            stream.lineEnd();
+          }
+
+          if (visible) {
+            clipRejoin(segments, compareIntersection, startInside, interpolate, stream);
+          }
+
+          stream.polygonEnd();
+        }
+
+        activeStream = stream, segments = polygon = ring = null;
+      }
+
+      function lineStart() {
+        clipStream.point = linePoint;
+        if (polygon) polygon.push(ring = []);
+        first = true;
+        v_ = false;
+        x_ = y_ = NaN;
+      } // TODO rather than special-case polygons, simply handle them separately.
+      // Ideally, coincident intersection points should be jittered to avoid
+      // clipping issues.
+
+
+      function lineEnd() {
+        if (segments) {
+          linePoint(x__, y__);
+          if (v__ && v_) bufferStream.rejoin();
+          segments.push(bufferStream.result());
+        }
+
+        clipStream.point = point;
+        if (v_) activeStream.lineEnd();
+      }
+
+      function linePoint(x, y) {
+        var v = visible(x, y);
+        if (polygon) ring.push([x, y]);
+
+        if (first) {
+          x__ = x, y__ = y, v__ = v;
+          first = false;
+
+          if (v) {
+            activeStream.lineStart();
+            activeStream.point(x, y);
+          }
+        } else {
+          if (v && v_) activeStream.point(x, y);else {
+            var a = [x_ = Math.max(clipMin, Math.min(clipMax, x_)), y_ = Math.max(clipMin, Math.min(clipMax, y_))],
+                b = [x = Math.max(clipMin, Math.min(clipMax, x)), y = Math.max(clipMin, Math.min(clipMax, y))];
+
+            if (clipLine(a, b, x0, y0, x1, y1)) {
+              if (!v_) {
+                activeStream.lineStart();
+                activeStream.point(a[0], a[1]);
+              }
+
+              activeStream.point(b[0], b[1]);
+              if (!v) activeStream.lineEnd();
+              clean = false;
+            } else if (v) {
+              activeStream.lineStart();
+              activeStream.point(x, y);
+              clean = false;
+            }
+          }
+        }
+
+        x_ = x, y_ = y, v_ = v;
+      }
+
+      return clipStream;
+    };
+  }
+
+  function graticuleX(y0, y1, dy) {
+    var y = range$1$1(y0, y1 - epsilon$2, dy).concat(y1);
+    return function (x) {
+      return y.map(function (y) {
+        return [x, y];
+      });
+    };
+  }
+
+  function graticuleY(x0, x1, dx) {
+    var x = range$1$1(x0, x1 - epsilon$2, dx).concat(x1);
+    return function (y) {
+      return x.map(function (x) {
+        return [x, y];
+      });
+    };
+  }
+
+  function graticule() {
+    var x1,
+        x0,
+        X1,
+        X0,
+        y1,
+        y0,
+        Y1,
+        Y0,
+        dx = 10,
+        dy = dx,
+        DX = 90,
+        DY = 360,
+        x,
+        y,
+        X,
+        Y,
+        precision = 2.5;
+
+    function graticule() {
+      return {
+        type: "MultiLineString",
+        coordinates: lines()
+      };
+    }
+
+    function lines() {
+      return range$1$1(ceil(X0 / DX) * DX, X1, DX).map(X).concat(range$1$1(ceil(Y0 / DY) * DY, Y1, DY).map(Y)).concat(range$1$1(ceil(x0 / dx) * dx, x1, dx).filter(function (x) {
+        return abs$1(x % DX) > epsilon$2;
+      }).map(x)).concat(range$1$1(ceil(y0 / dy) * dy, y1, dy).filter(function (y) {
+        return abs$1(y % DY) > epsilon$2;
+      }).map(y));
+    }
+
+    graticule.lines = function () {
+      return lines().map(function (coordinates) {
+        return {
+          type: "LineString",
+          coordinates: coordinates
+        };
+      });
+    };
+
+    graticule.outline = function () {
+      return {
+        type: "Polygon",
+        coordinates: [X(X0).concat(Y(Y1).slice(1), X(X1).reverse().slice(1), Y(Y0).reverse().slice(1))]
+      };
+    };
+
+    graticule.extent = function (_) {
+      if (!arguments.length) return graticule.extentMinor();
+      return graticule.extentMajor(_).extentMinor(_);
+    };
+
+    graticule.extentMajor = function (_) {
+      if (!arguments.length) return [[X0, Y0], [X1, Y1]];
+      X0 = +_[0][0], X1 = +_[1][0];
+      Y0 = +_[0][1], Y1 = +_[1][1];
+      if (X0 > X1) _ = X0, X0 = X1, X1 = _;
+      if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _;
+      return graticule.precision(precision);
+    };
+
+    graticule.extentMinor = function (_) {
+      if (!arguments.length) return [[x0, y0], [x1, y1]];
+      x0 = +_[0][0], x1 = +_[1][0];
+      y0 = +_[0][1], y1 = +_[1][1];
+      if (x0 > x1) _ = x0, x0 = x1, x1 = _;
+      if (y0 > y1) _ = y0, y0 = y1, y1 = _;
+      return graticule.precision(precision);
+    };
+
+    graticule.step = function (_) {
+      if (!arguments.length) return graticule.stepMinor();
+      return graticule.stepMajor(_).stepMinor(_);
+    };
+
+    graticule.stepMajor = function (_) {
+      if (!arguments.length) return [DX, DY];
+      DX = +_[0], DY = +_[1];
+      return graticule;
+    };
+
+    graticule.stepMinor = function (_) {
+      if (!arguments.length) return [dx, dy];
+      dx = +_[0], dy = +_[1];
+      return graticule;
+    };
+
+    graticule.precision = function (_) {
+      if (!arguments.length) return precision;
+      precision = +_;
+      x = graticuleX(y0, y1, 90);
+      y = graticuleY(x0, x1, precision);
+      X = graticuleX(Y0, Y1, 90);
+      Y = graticuleY(X0, X1, precision);
+      return graticule;
+    };
+
+    return graticule.extentMajor([[-180, -90 + epsilon$2], [180, 90 - epsilon$2]]).extentMinor([[-180, -80 - epsilon$2], [180, 80 + epsilon$2]]);
+  }
+
+  var identity = (x => x);
+
+  var areaSum = new Adder(),
+      areaRingSum = new Adder(),
+      x00$2,
+      y00$2,
+      x0$3,
+      y0$3;
+  var areaStream = {
+    point: noop$2,
+    lineStart: noop$2,
+    lineEnd: noop$2,
+    polygonStart: function () {
+      areaStream.lineStart = areaRingStart;
+      areaStream.lineEnd = areaRingEnd;
+    },
+    polygonEnd: function () {
+      areaStream.lineStart = areaStream.lineEnd = areaStream.point = noop$2;
+      areaSum.add(abs$1(areaRingSum));
+      areaRingSum = new Adder();
+    },
+    result: function () {
+      var area = areaSum / 2;
+      areaSum = new Adder();
+      return area;
+    }
+  };
+
+  function areaRingStart() {
+    areaStream.point = areaPointFirst;
+  }
+
+  function areaPointFirst(x, y) {
+    areaStream.point = areaPoint;
+    x00$2 = x0$3 = x, y00$2 = y0$3 = y;
+  }
+
+  function areaPoint(x, y) {
+    areaRingSum.add(y0$3 * x - x0$3 * y);
+    x0$3 = x, y0$3 = y;
+  }
+
+  function areaRingEnd() {
+    areaPoint(x00$2, y00$2);
+  }
+
+  var pathArea = areaStream;
+
+  var x0$2 = Infinity,
+      y0$2 = x0$2,
+      x1 = -x0$2,
+      y1 = x1;
+  var boundsStream = {
+    point: boundsPoint,
+    lineStart: noop$2,
+    lineEnd: noop$2,
+    polygonStart: noop$2,
+    polygonEnd: noop$2,
+    result: function () {
+      var bounds = [[x0$2, y0$2], [x1, y1]];
+      x1 = y1 = -(y0$2 = x0$2 = Infinity);
+      return bounds;
+    }
+  };
+
+  function boundsPoint(x, y) {
+    if (x < x0$2) x0$2 = x;
+    if (x > x1) x1 = x;
+    if (y < y0$2) y0$2 = y;
+    if (y > y1) y1 = y;
+  }
+
+  var boundsStream$1 = boundsStream;
+
+  var X0 = 0,
+      Y0 = 0,
+      Z0 = 0,
+      X1 = 0,
+      Y1 = 0,
+      Z1 = 0,
+      X2 = 0,
+      Y2 = 0,
+      Z2 = 0,
+      x00$1,
+      y00$1,
+      x0$1,
+      y0$1;
+  var centroidStream = {
+    point: centroidPoint,
+    lineStart: centroidLineStart,
+    lineEnd: centroidLineEnd,
+    polygonStart: function () {
+      centroidStream.lineStart = centroidRingStart;
+      centroidStream.lineEnd = centroidRingEnd;
+    },
+    polygonEnd: function () {
+      centroidStream.point = centroidPoint;
+      centroidStream.lineStart = centroidLineStart;
+      centroidStream.lineEnd = centroidLineEnd;
+    },
+    result: function () {
+      var centroid = Z2 ? [X2 / Z2, Y2 / Z2] : Z1 ? [X1 / Z1, Y1 / Z1] : Z0 ? [X0 / Z0, Y0 / Z0] : [NaN, NaN];
+      X0 = Y0 = Z0 = X1 = Y1 = Z1 = X2 = Y2 = Z2 = 0;
+      return centroid;
+    }
+  };
+
+  function centroidPoint(x, y) {
+    X0 += x;
+    Y0 += y;
+    ++Z0;
+  }
+
+  function centroidLineStart() {
+    centroidStream.point = centroidPointFirstLine;
+  }
+
+  function centroidPointFirstLine(x, y) {
+    centroidStream.point = centroidPointLine;
+    centroidPoint(x0$1 = x, y0$1 = y);
+  }
+
+  function centroidPointLine(x, y) {
+    var dx = x - x0$1,
+        dy = y - y0$1,
+        z = sqrt$1(dx * dx + dy * dy);
+    X1 += z * (x0$1 + x) / 2;
+    Y1 += z * (y0$1 + y) / 2;
+    Z1 += z;
+    centroidPoint(x0$1 = x, y0$1 = y);
+  }
+
+  function centroidLineEnd() {
+    centroidStream.point = centroidPoint;
+  }
+
+  function centroidRingStart() {
+    centroidStream.point = centroidPointFirstRing;
+  }
+
+  function centroidRingEnd() {
+    centroidPointRing(x00$1, y00$1);
+  }
+
+  function centroidPointFirstRing(x, y) {
+    centroidStream.point = centroidPointRing;
+    centroidPoint(x00$1 = x0$1 = x, y00$1 = y0$1 = y);
+  }
+
+  function centroidPointRing(x, y) {
+    var dx = x - x0$1,
+        dy = y - y0$1,
+        z = sqrt$1(dx * dx + dy * dy);
+    X1 += z * (x0$1 + x) / 2;
+    Y1 += z * (y0$1 + y) / 2;
+    Z1 += z;
+    z = y0$1 * x - x0$1 * y;
+    X2 += z * (x0$1 + x);
+    Y2 += z * (y0$1 + y);
+    Z2 += z * 3;
+    centroidPoint(x0$1 = x, y0$1 = y);
+  }
+
+  var pathCentroid = centroidStream;
+
+  function PathContext(context) {
+    this._context = context;
+  }
+  PathContext.prototype = {
+    _radius: 4.5,
+    pointRadius: function (_) {
+      return this._radius = _, this;
+    },
+    polygonStart: function () {
+      this._line = 0;
+    },
+    polygonEnd: function () {
+      this._line = NaN;
+    },
+    lineStart: function () {
+      this._point = 0;
+    },
+    lineEnd: function () {
+      if (this._line === 0) this._context.closePath();
+      this._point = NaN;
+    },
+    point: function (x, y) {
+      switch (this._point) {
+        case 0:
+          {
+            this._context.moveTo(x, y);
+
+            this._point = 1;
+            break;
+          }
+
+        case 1:
+          {
+            this._context.lineTo(x, y);
+
+            break;
+          }
+
+        default:
+          {
+            this._context.moveTo(x + this._radius, y);
+
+            this._context.arc(x, y, this._radius, 0, tau$1);
+
+            break;
+          }
+      }
+    },
+    result: noop$2
+  };
+
+  var lengthSum = new Adder(),
+      lengthRing,
+      x00,
+      y00,
+      x0,
+      y0;
+  var lengthStream = {
+    point: noop$2,
+    lineStart: function () {
+      lengthStream.point = lengthPointFirst;
+    },
+    lineEnd: function () {
+      if (lengthRing) lengthPoint(x00, y00);
+      lengthStream.point = noop$2;
+    },
+    polygonStart: function () {
+      lengthRing = true;
+    },
+    polygonEnd: function () {
+      lengthRing = null;
+    },
+    result: function () {
+      var length = +lengthSum;
+      lengthSum = new Adder();
+      return length;
+    }
+  };
+
+  function lengthPointFirst(x, y) {
+    lengthStream.point = lengthPoint;
+    x00 = x0 = x, y00 = y0 = y;
+  }
+
+  function lengthPoint(x, y) {
+    x0 -= x, y0 -= y;
+    lengthSum.add(sqrt$1(x0 * x0 + y0 * y0));
+    x0 = x, y0 = y;
+  }
+
+  var pathMeasure = lengthStream;
+
+  function PathString() {
+    this._string = [];
+  }
+  PathString.prototype = {
+    _radius: 4.5,
+    _circle: circle(4.5),
+    pointRadius: function (_) {
+      if ((_ = +_) !== this._radius) this._radius = _, this._circle = null;
+      return this;
+    },
+    polygonStart: function () {
+      this._line = 0;
+    },
+    polygonEnd: function () {
+      this._line = NaN;
+    },
+    lineStart: function () {
+      this._point = 0;
+    },
+    lineEnd: function () {
+      if (this._line === 0) this._string.push("Z");
+      this._point = NaN;
+    },
+    point: function (x, y) {
+      switch (this._point) {
+        case 0:
+          {
+            this._string.push("M", x, ",", y);
+
+            this._point = 1;
+            break;
+          }
+
+        case 1:
+          {
+            this._string.push("L", x, ",", y);
+
+            break;
+          }
+
+        default:
+          {
+            if (this._circle == null) this._circle = circle(this._radius);
+
+            this._string.push("M", x, ",", y, this._circle);
+
+            break;
+          }
+      }
+    },
+    result: function () {
+      if (this._string.length) {
+        var result = this._string.join("");
+
+        this._string = [];
+        return result;
+      } else {
+        return null;
+      }
+    }
+  };
+
+  function circle(radius) {
+    return "m0," + radius + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius + "z";
+  }
+
+  function geoPath (projection, context) {
+    var pointRadius = 4.5,
+        projectionStream,
+        contextStream;
+
+    function path(object) {
+      if (object) {
+        if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments));
+        geoStream(object, projectionStream(contextStream));
+      }
+
+      return contextStream.result();
+    }
+
+    path.area = function (object) {
+      geoStream(object, projectionStream(pathArea));
+      return pathArea.result();
+    };
+
+    path.measure = function (object) {
+      geoStream(object, projectionStream(pathMeasure));
+      return pathMeasure.result();
+    };
+
+    path.bounds = function (object) {
+      geoStream(object, projectionStream(boundsStream$1));
+      return boundsStream$1.result();
+    };
+
+    path.centroid = function (object) {
+      geoStream(object, projectionStream(pathCentroid));
+      return pathCentroid.result();
+    };
+
+    path.projection = function (_) {
+      return arguments.length ? (projectionStream = _ == null ? (projection = null, identity) : (projection = _).stream, path) : projection;
+    };
+
+    path.context = function (_) {
+      if (!arguments.length) return context;
+      contextStream = _ == null ? (context = null, new PathString()) : new PathContext(context = _);
+      if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius);
+      return path;
+    };
+
+    path.pointRadius = function (_) {
+      if (!arguments.length) return pointRadius;
+      pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_);
+      return path;
+    };
+
+    return path.projection(projection).context(context);
+  }
+
+  function transformer(methods) {
+    return function (stream) {
+      var s = new TransformStream();
+
+      for (var key in methods) s[key] = methods[key];
+
+      s.stream = stream;
+      return s;
+    };
+  }
+
+  function TransformStream() {}
+
+  TransformStream.prototype = {
+    constructor: TransformStream,
+    point: function (x, y) {
+      this.stream.point(x, y);
+    },
+    sphere: function () {
+      this.stream.sphere();
+    },
+    lineStart: function () {
+      this.stream.lineStart();
+    },
+    lineEnd: function () {
+      this.stream.lineEnd();
+    },
+    polygonStart: function () {
+      this.stream.polygonStart();
+    },
+    polygonEnd: function () {
+      this.stream.polygonEnd();
+    }
+  };
+
+  function fit$1(projection, fitBounds, object) {
+    var clip = projection.clipExtent && projection.clipExtent();
+    projection.scale(150).translate([0, 0]);
+    if (clip != null) projection.clipExtent(null);
+    geoStream(object, projection.stream(boundsStream$1));
+    fitBounds(boundsStream$1.result());
+    if (clip != null) projection.clipExtent(clip);
+    return projection;
+  }
+
+  function fitExtent(projection, extent, object) {
+    return fit$1(projection, function (b) {
+      var w = extent[1][0] - extent[0][0],
+          h = extent[1][1] - extent[0][1],
+          k = Math.min(w / (b[1][0] - b[0][0]), h / (b[1][1] - b[0][1])),
+          x = +extent[0][0] + (w - k * (b[1][0] + b[0][0])) / 2,
+          y = +extent[0][1] + (h - k * (b[1][1] + b[0][1])) / 2;
+      projection.scale(150 * k).translate([x, y]);
+    }, object);
+  }
+  function fitSize(projection, size, object) {
+    return fitExtent(projection, [[0, 0], size], object);
+  }
+  function fitWidth(projection, width, object) {
+    return fit$1(projection, function (b) {
+      var w = +width,
+          k = w / (b[1][0] - b[0][0]),
+          x = (w - k * (b[1][0] + b[0][0])) / 2,
+          y = -k * b[0][1];
+      projection.scale(150 * k).translate([x, y]);
+    }, object);
+  }
+  function fitHeight(projection, height, object) {
+    return fit$1(projection, function (b) {
+      var h = +height,
+          k = h / (b[1][1] - b[0][1]),
+          x = -k * b[0][0],
+          y = (h - k * (b[1][1] + b[0][1])) / 2;
+      projection.scale(150 * k).translate([x, y]);
+    }, object);
+  }
+
+  var maxDepth = 16,
+      // maximum depth of subdivision
+  cosMinDistance = cos$1(30 * radians); // cos(minimum angular distance)
+
+  function resample (project, delta2) {
+    return +delta2 ? resample$1(project, delta2) : resampleNone(project);
+  }
+
+  function resampleNone(project) {
+    return transformer({
+      point: function (x, y) {
+        x = project(x, y);
+        this.stream.point(x[0], x[1]);
+      }
+    });
+  }
+
+  function resample$1(project, delta2) {
+    function resampleLineTo(x0, y0, lambda0, a0, b0, c0, x1, y1, lambda1, a1, b1, c1, depth, stream) {
+      var dx = x1 - x0,
+          dy = y1 - y0,
+          d2 = dx * dx + dy * dy;
+
+      if (d2 > 4 * delta2 && depth--) {
+        var a = a0 + a1,
+            b = b0 + b1,
+            c = c0 + c1,
+            m = sqrt$1(a * a + b * b + c * c),
+            phi2 = asin$1(c /= m),
+            lambda2 = abs$1(abs$1(c) - 1) < epsilon$2 || abs$1(lambda0 - lambda1) < epsilon$2 ? (lambda0 + lambda1) / 2 : atan2(b, a),
+            p = project(lambda2, phi2),
+            x2 = p[0],
+            y2 = p[1],
+            dx2 = x2 - x0,
+            dy2 = y2 - y0,
+            dz = dy * dx2 - dx * dy2;
+
+        if (dz * dz / d2 > delta2 // perpendicular projected distance
+        || abs$1((dx * dx2 + dy * dy2) / d2 - 0.5) > 0.3 // midpoint close to an end
+        || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) {
+          // angular distance
+          resampleLineTo(x0, y0, lambda0, a0, b0, c0, x2, y2, lambda2, a /= m, b /= m, c, depth, stream);
+          stream.point(x2, y2);
+          resampleLineTo(x2, y2, lambda2, a, b, c, x1, y1, lambda1, a1, b1, c1, depth, stream);
+        }
+      }
+    }
+
+    return function (stream) {
+      var lambda00, x00, y00, a00, b00, c00, // first point
+      lambda0, x0, y0, a0, b0, c0; // previous point
+
+      var resampleStream = {
+        point: point,
+        lineStart: lineStart,
+        lineEnd: lineEnd,
+        polygonStart: function () {
+          stream.polygonStart();
+          resampleStream.lineStart = ringStart;
+        },
+        polygonEnd: function () {
+          stream.polygonEnd();
+          resampleStream.lineStart = lineStart;
+        }
+      };
+
+      function point(x, y) {
+        x = project(x, y);
+        stream.point(x[0], x[1]);
+      }
+
+      function lineStart() {
+        x0 = NaN;
+        resampleStream.point = linePoint;
+        stream.lineStart();
+      }
+
+      function linePoint(lambda, phi) {
+        var c = cartesian([lambda, phi]),
+            p = project(lambda, phi);
+        resampleLineTo(x0, y0, lambda0, a0, b0, c0, x0 = p[0], y0 = p[1], lambda0 = lambda, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream);
+        stream.point(x0, y0);
+      }
+
+      function lineEnd() {
+        resampleStream.point = point;
+        stream.lineEnd();
+      }
+
+      function ringStart() {
+        lineStart();
+        resampleStream.point = ringPoint;
+        resampleStream.lineEnd = ringEnd;
+      }
+
+      function ringPoint(lambda, phi) {
+        linePoint(lambda00 = lambda, phi), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0;
+        resampleStream.point = linePoint;
+      }
+
+      function ringEnd() {
+        resampleLineTo(x0, y0, lambda0, a0, b0, c0, x00, y00, lambda00, a00, b00, c00, maxDepth, stream);
+        resampleStream.lineEnd = lineEnd;
+        lineEnd();
+      }
+
+      return resampleStream;
+    };
+  }
+
+  var transformRadians = transformer({
+    point: function (x, y) {
+      this.stream.point(x * radians, y * radians);
+    }
+  });
+
+  function transformRotate(rotate) {
+    return transformer({
+      point: function (x, y) {
+        var r = rotate(x, y);
+        return this.stream.point(r[0], r[1]);
+      }
+    });
+  }
+
+  function scaleTranslate(k, dx, dy, sx, sy) {
+    function transform(x, y) {
+      x *= sx;
+      y *= sy;
+      return [dx + k * x, dy - k * y];
+    }
+
+    transform.invert = function (x, y) {
+      return [(x - dx) / k * sx, (dy - y) / k * sy];
+    };
+
+    return transform;
+  }
+
+  function scaleTranslateRotate(k, dx, dy, sx, sy, alpha) {
+    if (!alpha) return scaleTranslate(k, dx, dy, sx, sy);
+    var cosAlpha = cos$1(alpha),
+        sinAlpha = sin$1(alpha),
+        a = cosAlpha * k,
+        b = sinAlpha * k,
+        ai = cosAlpha / k,
+        bi = sinAlpha / k,
+        ci = (sinAlpha * dy - cosAlpha * dx) / k,
+        fi = (sinAlpha * dx + cosAlpha * dy) / k;
+
+    function transform(x, y) {
+      x *= sx;
+      y *= sy;
+      return [a * x - b * y + dx, dy - b * x - a * y];
+    }
+
+    transform.invert = function (x, y) {
+      return [sx * (ai * x - bi * y + ci), sy * (fi - bi * x - ai * y)];
+    };
+
+    return transform;
+  }
+
+  function projection$1(project) {
+    return projectionMutator(function () {
+      return project;
+    })();
+  }
+  function projectionMutator(projectAt) {
+    var project,
+        k = 150,
+        // scale
+    x = 480,
+        y = 250,
+        // translate
+    lambda = 0,
+        phi = 0,
+        // center
+    deltaLambda = 0,
+        deltaPhi = 0,
+        deltaGamma = 0,
+        rotate,
+        // pre-rotate
+    alpha = 0,
+        // post-rotate angle
+    sx = 1,
+        // reflectX
+    sy = 1,
+        // reflectX
+    theta = null,
+        preclip = clipAntimeridian,
+        // pre-clip angle
+    x0 = null,
+        y0,
+        x1,
+        y1,
+        postclip = identity,
+        // post-clip extent
+    delta2 = 0.5,
+        // precision
+    projectResample,
+        projectTransform,
+        projectRotateTransform,
+        cache,
+        cacheStream;
+
+    function projection(point) {
+      return projectRotateTransform(point[0] * radians, point[1] * radians);
+    }
+
+    function invert(point) {
+      point = projectRotateTransform.invert(point[0], point[1]);
+      return point && [point[0] * degrees, point[1] * degrees];
+    }
+
+    projection.stream = function (stream) {
+      return cache && cacheStream === stream ? cache : cache = transformRadians(transformRotate(rotate)(preclip(projectResample(postclip(cacheStream = stream)))));
+    };
+
+    projection.preclip = function (_) {
+      return arguments.length ? (preclip = _, theta = undefined, reset()) : preclip;
+    };
+
+    projection.postclip = function (_) {
+      return arguments.length ? (postclip = _, x0 = y0 = x1 = y1 = null, reset()) : postclip;
+    };
+
+    projection.clipAngle = function (_) {
+      return arguments.length ? (preclip = +_ ? clipCircle(theta = _ * radians) : (theta = null, clipAntimeridian), reset()) : theta * degrees;
+    };
+
+    projection.clipExtent = function (_) {
+      return arguments.length ? (postclip = _ == null ? (x0 = y0 = x1 = y1 = null, identity) : clipRectangle(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]];
+    };
+
+    projection.scale = function (_) {
+      return arguments.length ? (k = +_, recenter()) : k;
+    };
+
+    projection.translate = function (_) {
+      return arguments.length ? (x = +_[0], y = +_[1], recenter()) : [x, y];
+    };
+
+    projection.center = function (_) {
+      return arguments.length ? (lambda = _[0] % 360 * radians, phi = _[1] % 360 * radians, recenter()) : [lambda * degrees, phi * degrees];
+    };
+
+    projection.rotate = function (_) {
+      return arguments.length ? (deltaLambda = _[0] % 360 * radians, deltaPhi = _[1] % 360 * radians, deltaGamma = _.length > 2 ? _[2] % 360 * radians : 0, recenter()) : [deltaLambda * degrees, deltaPhi * degrees, deltaGamma * degrees];
+    };
+
+    projection.angle = function (_) {
+      return arguments.length ? (alpha = _ % 360 * radians, recenter()) : alpha * degrees;
+    };
+
+    projection.reflectX = function (_) {
+      return arguments.length ? (sx = _ ? -1 : 1, recenter()) : sx < 0;
+    };
+
+    projection.reflectY = function (_) {
+      return arguments.length ? (sy = _ ? -1 : 1, recenter()) : sy < 0;
+    };
+
+    projection.precision = function (_) {
+      return arguments.length ? (projectResample = resample(projectTransform, delta2 = _ * _), reset()) : sqrt$1(delta2);
+    };
+
+    projection.fitExtent = function (extent, object) {
+      return fitExtent(projection, extent, object);
+    };
+
+    projection.fitSize = function (size, object) {
+      return fitSize(projection, size, object);
+    };
+
+    projection.fitWidth = function (width, object) {
+      return fitWidth(projection, width, object);
+    };
+
+    projection.fitHeight = function (height, object) {
+      return fitHeight(projection, height, object);
+    };
+
+    function recenter() {
+      var center = scaleTranslateRotate(k, 0, 0, sx, sy, alpha).apply(null, project(lambda, phi)),
+          transform = scaleTranslateRotate(k, x - center[0], y - center[1], sx, sy, alpha);
+      rotate = rotateRadians(deltaLambda, deltaPhi, deltaGamma);
+      projectTransform = compose(project, transform);
+      projectRotateTransform = compose(rotate, projectTransform);
+      projectResample = resample(projectTransform, delta2);
+      return reset();
+    }
+
+    function reset() {
+      cache = cacheStream = null;
+      return projection;
+    }
+
+    return function () {
+      project = projectAt.apply(this, arguments);
+      projection.invert = project.invert && invert;
+      return recenter();
+    };
+  }
+
+  function conicProjection(projectAt) {
+    var phi0 = 0,
+        phi1 = pi$1 / 3,
+        m = projectionMutator(projectAt),
+        p = m(phi0, phi1);
+
+    p.parallels = function (_) {
+      return arguments.length ? m(phi0 = _[0] * radians, phi1 = _[1] * radians) : [phi0 * degrees, phi1 * degrees];
+    };
+
+    return p;
+  }
+
+  function cylindricalEqualAreaRaw(phi0) {
+    var cosPhi0 = cos$1(phi0);
+
+    function forward(lambda, phi) {
+      return [lambda * cosPhi0, sin$1(phi) / cosPhi0];
+    }
+
+    forward.invert = function (x, y) {
+      return [x / cosPhi0, asin$1(y * cosPhi0)];
+    };
+
+    return forward;
+  }
+
+  function conicEqualAreaRaw(y0, y1) {
+    var sy0 = sin$1(y0),
+        n = (sy0 + sin$1(y1)) / 2; // Are the parallels symmetrical around the Equator?
+
+    if (abs$1(n) < epsilon$2) return cylindricalEqualAreaRaw(y0);
+    var c = 1 + sy0 * (2 * n - sy0),
+        r0 = sqrt$1(c) / n;
+
+    function project(x, y) {
+      var r = sqrt$1(c - 2 * n * sin$1(y)) / n;
+      return [r * sin$1(x *= n), r0 - r * cos$1(x)];
+    }
+
+    project.invert = function (x, y) {
+      var r0y = r0 - y,
+          l = atan2(x, abs$1(r0y)) * sign(r0y);
+      if (r0y * n < 0) l -= pi$1 * sign(x) * sign(r0y);
+      return [l / n, asin$1((c - (x * x + r0y * r0y) * n * n) / (2 * n))];
+    };
+
+    return project;
+  }
+  function geoConicEqualArea () {
+    return conicProjection(conicEqualAreaRaw).scale(155.424).center([0, 33.6442]);
+  }
+
+  function geoAlbers () {
+    return geoConicEqualArea().parallels([29.5, 45.5]).scale(1070).translate([480, 250]).rotate([96, 0]).center([-0.6, 38.7]);
+  }
+
+  // as this will avoid emitting interleaving lines and polygons.
+
+  function multiplex(streams) {
+    var n = streams.length;
+    return {
+      point: function (x, y) {
+        var i = -1;
+
+        while (++i < n) streams[i].point(x, y);
+      },
+      sphere: function () {
+        var i = -1;
+
+        while (++i < n) streams[i].sphere();
+      },
+      lineStart: function () {
+        var i = -1;
+
+        while (++i < n) streams[i].lineStart();
+      },
+      lineEnd: function () {
+        var i = -1;
+
+        while (++i < n) streams[i].lineEnd();
+      },
+      polygonStart: function () {
+        var i = -1;
+
+        while (++i < n) streams[i].polygonStart();
+      },
+      polygonEnd: function () {
+        var i = -1;
+
+        while (++i < n) streams[i].polygonEnd();
+      }
+    };
+  } // A composite projection for the United States, configured by default for
+  // 960×500. The projection also works quite well at 960×600 if you change the
+  // scale to 1285 and adjust the translate accordingly. The set of standard
+  // parallels for each region comes from USGS, which is published here:
+  // http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers
+
+
+  function geoAlbersUsa () {
+    var cache,
+        cacheStream,
+        lower48 = geoAlbers(),
+        lower48Point,
+        alaska = geoConicEqualArea().rotate([154, 0]).center([-2, 58.5]).parallels([55, 65]),
+        alaskaPoint,
+        // EPSG:3338
+    hawaii = geoConicEqualArea().rotate([157, 0]).center([-3, 19.9]).parallels([8, 18]),
+        hawaiiPoint,
+        // ESRI:102007
+    point,
+        pointStream = {
+      point: function (x, y) {
+        point = [x, y];
+      }
+    };
+
+    function albersUsa(coordinates) {
+      var x = coordinates[0],
+          y = coordinates[1];
+      return point = null, (lower48Point.point(x, y), point) || (alaskaPoint.point(x, y), point) || (hawaiiPoint.point(x, y), point);
+    }
+
+    albersUsa.invert = function (coordinates) {
+      var k = lower48.scale(),
+          t = lower48.translate(),
+          x = (coordinates[0] - t[0]) / k,
+          y = (coordinates[1] - t[1]) / k;
+      return (y >= 0.120 && y < 0.234 && x >= -0.425 && x < -0.214 ? alaska : y >= 0.166 && y < 0.234 && x >= -0.214 && x < -0.115 ? hawaii : lower48).invert(coordinates);
+    };
+
+    albersUsa.stream = function (stream) {
+      return cache && cacheStream === stream ? cache : cache = multiplex([lower48.stream(cacheStream = stream), alaska.stream(stream), hawaii.stream(stream)]);
+    };
+
+    albersUsa.precision = function (_) {
+      if (!arguments.length) return lower48.precision();
+      lower48.precision(_), alaska.precision(_), hawaii.precision(_);
+      return reset();
+    };
+
+    albersUsa.scale = function (_) {
+      if (!arguments.length) return lower48.scale();
+      lower48.scale(_), alaska.scale(_ * 0.35), hawaii.scale(_);
+      return albersUsa.translate(lower48.translate());
+    };
+
+    albersUsa.translate = function (_) {
+      if (!arguments.length) return lower48.translate();
+      var k = lower48.scale(),
+          x = +_[0],
+          y = +_[1];
+      lower48Point = lower48.translate(_).clipExtent([[x - 0.455 * k, y - 0.238 * k], [x + 0.455 * k, y + 0.238 * k]]).stream(pointStream);
+      alaskaPoint = alaska.translate([x - 0.307 * k, y + 0.201 * k]).clipExtent([[x - 0.425 * k + epsilon$2, y + 0.120 * k + epsilon$2], [x - 0.214 * k - epsilon$2, y + 0.234 * k - epsilon$2]]).stream(pointStream);
+      hawaiiPoint = hawaii.translate([x - 0.205 * k, y + 0.212 * k]).clipExtent([[x - 0.214 * k + epsilon$2, y + 0.166 * k + epsilon$2], [x - 0.115 * k - epsilon$2, y + 0.234 * k - epsilon$2]]).stream(pointStream);
+      return reset();
+    };
+
+    albersUsa.fitExtent = function (extent, object) {
+      return fitExtent(albersUsa, extent, object);
+    };
+
+    albersUsa.fitSize = function (size, object) {
+      return fitSize(albersUsa, size, object);
+    };
+
+    albersUsa.fitWidth = function (width, object) {
+      return fitWidth(albersUsa, width, object);
+    };
+
+    albersUsa.fitHeight = function (height, object) {
+      return fitHeight(albersUsa, height, object);
+    };
+
+    function reset() {
+      cache = cacheStream = null;
+      return albersUsa;
+    }
+
+    return albersUsa.scale(1070);
+  }
+
+  function azimuthalRaw(scale) {
+    return function (x, y) {
+      var cx = cos$1(x),
+          cy = cos$1(y),
+          k = scale(cx * cy);
+      if (k === Infinity) return [2, 0];
+      return [k * cy * sin$1(x), k * sin$1(y)];
+    };
+  }
+  function azimuthalInvert(angle) {
+    return function (x, y) {
+      var z = sqrt$1(x * x + y * y),
+          c = angle(z),
+          sc = sin$1(c),
+          cc = cos$1(c);
+      return [atan2(x * sc, z * cc), asin$1(z && y * sc / z)];
+    };
+  }
+
+  var azimuthalEqualAreaRaw = azimuthalRaw(function (cxcy) {
+    return sqrt$1(2 / (1 + cxcy));
+  });
+  azimuthalEqualAreaRaw.invert = azimuthalInvert(function (z) {
+    return 2 * asin$1(z / 2);
+  });
+  function geoAzimuthalEqualArea () {
+    return projection$1(azimuthalEqualAreaRaw).scale(124.75).clipAngle(180 - 1e-3);
+  }
+
+  var azimuthalEquidistantRaw = azimuthalRaw(function (c) {
+    return (c = acos(c)) && c / sin$1(c);
+  });
+  azimuthalEquidistantRaw.invert = azimuthalInvert(function (z) {
+    return z;
+  });
+  function geoAzimuthalEquidistant () {
+    return projection$1(azimuthalEquidistantRaw).scale(79.4188).clipAngle(180 - 1e-3);
+  }
+
+  function mercatorRaw(lambda, phi) {
+    return [lambda, log$1(tan((halfPi$1 + phi) / 2))];
+  }
+
+  mercatorRaw.invert = function (x, y) {
+    return [x, 2 * atan(exp(y)) - halfPi$1];
+  };
+
+  function geoMercator () {
+    return mercatorProjection(mercatorRaw).scale(961 / tau$1);
+  }
+  function mercatorProjection(project) {
+    var m = projection$1(project),
+        center = m.center,
+        scale = m.scale,
+        translate = m.translate,
+        clipExtent = m.clipExtent,
+        x0 = null,
+        y0,
+        x1,
+        y1; // clip extent
+
+    m.scale = function (_) {
+      return arguments.length ? (scale(_), reclip()) : scale();
+    };
+
+    m.translate = function (_) {
+      return arguments.length ? (translate(_), reclip()) : translate();
+    };
+
+    m.center = function (_) {
+      return arguments.length ? (center(_), reclip()) : center();
+    };
+
+    m.clipExtent = function (_) {
+      return arguments.length ? (_ == null ? x0 = y0 = x1 = y1 = null : (x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reclip()) : x0 == null ? null : [[x0, y0], [x1, y1]];
+    };
+
+    function reclip() {
+      var k = pi$1 * scale(),
+          t = m(rotation(m.rotate()).invert([0, 0]));
+      return clipExtent(x0 == null ? [[t[0] - k, t[1] - k], [t[0] + k, t[1] + k]] : project === mercatorRaw ? [[Math.max(t[0] - k, x0), y0], [Math.min(t[0] + k, x1), y1]] : [[x0, Math.max(t[1] - k, y0)], [x1, Math.min(t[1] + k, y1)]]);
+    }
+
+    return reclip();
+  }
+
+  function tany(y) {
+    return tan((halfPi$1 + y) / 2);
+  }
+
+  function conicConformalRaw(y0, y1) {
+    var cy0 = cos$1(y0),
+        n = y0 === y1 ? sin$1(y0) : log$1(cy0 / cos$1(y1)) / log$1(tany(y1) / tany(y0)),
+        f = cy0 * pow$1(tany(y0), n) / n;
+    if (!n) return mercatorRaw;
+
+    function project(x, y) {
+      if (f > 0) {
+        if (y < -halfPi$1 + epsilon$2) y = -halfPi$1 + epsilon$2;
+      } else {
+        if (y > halfPi$1 - epsilon$2) y = halfPi$1 - epsilon$2;
+      }
+
+      var r = f / pow$1(tany(y), n);
+      return [r * sin$1(n * x), f - r * cos$1(n * x)];
+    }
+
+    project.invert = function (x, y) {
+      var fy = f - y,
+          r = sign(n) * sqrt$1(x * x + fy * fy),
+          l = atan2(x, abs$1(fy)) * sign(fy);
+      if (fy * n < 0) l -= pi$1 * sign(x) * sign(fy);
+      return [l / n, 2 * atan(pow$1(f / r, 1 / n)) - halfPi$1];
+    };
+
+    return project;
+  }
+  function geoConicConformal () {
+    return conicProjection(conicConformalRaw).scale(109.5).parallels([30, 30]);
+  }
+
+  function equirectangularRaw(lambda, phi) {
+    return [lambda, phi];
+  }
+  equirectangularRaw.invert = equirectangularRaw;
+  function geoEquirectangular () {
+    return projection$1(equirectangularRaw).scale(152.63);
+  }
+
+  function conicEquidistantRaw(y0, y1) {
+    var cy0 = cos$1(y0),
+        n = y0 === y1 ? sin$1(y0) : (cy0 - cos$1(y1)) / (y1 - y0),
+        g = cy0 / n + y0;
+    if (abs$1(n) < epsilon$2) return equirectangularRaw;
+
+    function project(x, y) {
+      var gy = g - y,
+          nx = n * x;
+      return [gy * sin$1(nx), g - gy * cos$1(nx)];
+    }
+
+    project.invert = function (x, y) {
+      var gy = g - y,
+          l = atan2(x, abs$1(gy)) * sign(gy);
+      if (gy * n < 0) l -= pi$1 * sign(x) * sign(gy);
+      return [l / n, g - sign(n) * sqrt$1(x * x + gy * gy)];
+    };
+
+    return project;
+  }
+  function geoConicEquidistant () {
+    return conicProjection(conicEquidistantRaw).scale(131.154).center([0, 13.9389]);
+  }
+
+  var A1 = 1.340264,
+      A2 = -0.081106,
+      A3 = 0.000893,
+      A4 = 0.003796,
+      M = sqrt$1(3) / 2,
+      iterations = 12;
+  function equalEarthRaw(lambda, phi) {
+    var l = asin$1(M * sin$1(phi)),
+        l2 = l * l,
+        l6 = l2 * l2 * l2;
+    return [lambda * cos$1(l) / (M * (A1 + 3 * A2 * l2 + l6 * (7 * A3 + 9 * A4 * l2))), l * (A1 + A2 * l2 + l6 * (A3 + A4 * l2))];
+  }
+
+  equalEarthRaw.invert = function (x, y) {
+    var l = y,
+        l2 = l * l,
+        l6 = l2 * l2 * l2;
+
+    for (var i = 0, delta, fy, fpy; i < iterations; ++i) {
+      fy = l * (A1 + A2 * l2 + l6 * (A3 + A4 * l2)) - y;
+      fpy = A1 + 3 * A2 * l2 + l6 * (7 * A3 + 9 * A4 * l2);
+      l -= delta = fy / fpy, l2 = l * l, l6 = l2 * l2 * l2;
+      if (abs$1(delta) < epsilon2) break;
+    }
+
+    return [M * x * (A1 + 3 * A2 * l2 + l6 * (7 * A3 + 9 * A4 * l2)) / cos$1(l), asin$1(sin$1(l) / M)];
+  };
+
+  function geoEqualEarth () {
+    return projection$1(equalEarthRaw).scale(177.158);
+  }
+
+  function gnomonicRaw(x, y) {
+    var cy = cos$1(y),
+        k = cos$1(x) * cy;
+    return [cy * sin$1(x) / k, sin$1(y) / k];
+  }
+  gnomonicRaw.invert = azimuthalInvert(atan);
+  function geoGnomonic () {
+    return projection$1(gnomonicRaw).scale(144.049).clipAngle(60);
+  }
+
+  function geoIdentity () {
+    var k = 1,
+        tx = 0,
+        ty = 0,
+        sx = 1,
+        sy = 1,
+        // scale, translate and reflect
+    alpha = 0,
+        ca,
+        sa,
+        // angle
+    x0 = null,
+        y0,
+        x1,
+        y1,
+        // clip extent
+    kx = 1,
+        ky = 1,
+        transform = transformer({
+      point: function (x, y) {
+        var p = projection([x, y]);
+        this.stream.point(p[0], p[1]);
+      }
+    }),
+        postclip = identity,
+        cache,
+        cacheStream;
+
+    function reset() {
+      kx = k * sx;
+      ky = k * sy;
+      cache = cacheStream = null;
+      return projection;
+    }
+
+    function projection(p) {
+      var x = p[0] * kx,
+          y = p[1] * ky;
+
+      if (alpha) {
+        var t = y * ca - x * sa;
+        x = x * ca + y * sa;
+        y = t;
+      }
+
+      return [x + tx, y + ty];
+    }
+
+    projection.invert = function (p) {
+      var x = p[0] - tx,
+          y = p[1] - ty;
+
+      if (alpha) {
+        var t = y * ca + x * sa;
+        x = x * ca - y * sa;
+        y = t;
+      }
+
+      return [x / kx, y / ky];
+    };
+
+    projection.stream = function (stream) {
+      return cache && cacheStream === stream ? cache : cache = transform(postclip(cacheStream = stream));
+    };
+
+    projection.postclip = function (_) {
+      return arguments.length ? (postclip = _, x0 = y0 = x1 = y1 = null, reset()) : postclip;
+    };
+
+    projection.clipExtent = function (_) {
+      return arguments.length ? (postclip = _ == null ? (x0 = y0 = x1 = y1 = null, identity) : clipRectangle(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]];
+    };
+
+    projection.scale = function (_) {
+      return arguments.length ? (k = +_, reset()) : k;
+    };
+
+    projection.translate = function (_) {
+      return arguments.length ? (tx = +_[0], ty = +_[1], reset()) : [tx, ty];
+    };
+
+    projection.angle = function (_) {
+      return arguments.length ? (alpha = _ % 360 * radians, sa = sin$1(alpha), ca = cos$1(alpha), reset()) : alpha * degrees;
+    };
+
+    projection.reflectX = function (_) {
+      return arguments.length ? (sx = _ ? -1 : 1, reset()) : sx < 0;
+    };
+
+    projection.reflectY = function (_) {
+      return arguments.length ? (sy = _ ? -1 : 1, reset()) : sy < 0;
+    };
+
+    projection.fitExtent = function (extent, object) {
+      return fitExtent(projection, extent, object);
+    };
+
+    projection.fitSize = function (size, object) {
+      return fitSize(projection, size, object);
+    };
+
+    projection.fitWidth = function (width, object) {
+      return fitWidth(projection, width, object);
+    };
+
+    projection.fitHeight = function (height, object) {
+      return fitHeight(projection, height, object);
+    };
+
+    return projection;
+  }
+
+  function naturalEarth1Raw(lambda, phi) {
+    var phi2 = phi * phi,
+        phi4 = phi2 * phi2;
+    return [lambda * (0.8707 - 0.131979 * phi2 + phi4 * (-0.013791 + phi4 * (0.003971 * phi2 - 0.001529 * phi4))), phi * (1.007226 + phi2 * (0.015085 + phi4 * (-0.044475 + 0.028874 * phi2 - 0.005916 * phi4)))];
+  }
+
+  naturalEarth1Raw.invert = function (x, y) {
+    var phi = y,
+        i = 25,
+        delta;
+
+    do {
+      var phi2 = phi * phi,
+          phi4 = phi2 * phi2;
+      phi -= delta = (phi * (1.007226 + phi2 * (0.015085 + phi4 * (-0.044475 + 0.028874 * phi2 - 0.005916 * phi4))) - y) / (1.007226 + phi2 * (0.015085 * 3 + phi4 * (-0.044475 * 7 + 0.028874 * 9 * phi2 - 0.005916 * 11 * phi4)));
+    } while (abs$1(delta) > epsilon$2 && --i > 0);
+
+    return [x / (0.8707 + (phi2 = phi * phi) * (-0.131979 + phi2 * (-0.013791 + phi2 * phi2 * phi2 * (0.003971 - 0.001529 * phi2)))), phi];
+  };
+
+  function geoNaturalEarth1 () {
+    return projection$1(naturalEarth1Raw).scale(175.295);
+  }
+
+  function orthographicRaw(x, y) {
+    return [cos$1(y) * sin$1(x), sin$1(y)];
+  }
+  orthographicRaw.invert = azimuthalInvert(asin$1);
+  function geoOrthographic () {
+    return projection$1(orthographicRaw).scale(249.5).clipAngle(90 + epsilon$2);
+  }
+
+  function stereographicRaw(x, y) {
+    var cy = cos$1(y),
+        k = 1 + cos$1(x) * cy;
+    return [cy * sin$1(x) / k, sin$1(y) / k];
+  }
+  stereographicRaw.invert = azimuthalInvert(function (z) {
+    return 2 * atan(z);
+  });
+  function geoStereographic () {
+    return projection$1(stereographicRaw).scale(250).clipAngle(142);
+  }
+
+  function transverseMercatorRaw(lambda, phi) {
+    return [log$1(tan((halfPi$1 + phi) / 2)), -lambda];
+  }
+
+  transverseMercatorRaw.invert = function (x, y) {
+    return [-y, 2 * atan(exp(x)) - halfPi$1];
+  };
+
+  function geoTransverseMercator () {
+    var m = mercatorProjection(transverseMercatorRaw),
+        center = m.center,
+        rotate = m.rotate;
+
+    m.center = function (_) {
+      return arguments.length ? center([-_[1], _[0]]) : (_ = center(), [_[1], -_[0]]);
+    };
+
+    m.rotate = function (_) {
+      return arguments.length ? rotate([_[0], _[1], _.length > 2 ? _[2] + 90 : 90]) : (_ = rotate(), [_[0], _[1], _[2] - 90]);
+    };
+
+    return rotate([0, 0, 90]).scale(159.155);
+  }
+
+  var abs = Math.abs;
+  var cos = Math.cos;
+  var sin = Math.sin;
+  var epsilon$1 = 1e-6;
+  var pi = Math.PI;
+  var halfPi = pi / 2;
+  var sqrt2 = sqrt(2);
+  function asin(x) {
+    return x > 1 ? halfPi : x < -1 ? -halfPi : Math.asin(x);
+  }
+  function sqrt(x) {
+    return x > 0 ? Math.sqrt(x) : 0;
+  }
+
+  function mollweideBromleyTheta(cp, phi) {
+    var cpsinPhi = cp * sin(phi),
+        i = 30,
+        delta;
+
+    do phi -= delta = (phi + sin(phi) - cpsinPhi) / (1 + cos(phi)); while (abs(delta) > epsilon$1 && --i > 0);
+
+    return phi / 2;
+  }
+  function mollweideBromleyRaw(cx, cy, cp) {
+    function forward(lambda, phi) {
+      return [cx * lambda * cos(phi = mollweideBromleyTheta(cp, phi)), cy * sin(phi)];
+    }
+
+    forward.invert = function (x, y) {
+      return y = asin(y / cy), [x / (cx * cos(y)), asin((2 * y + sin(2 * y)) / cp)];
+    };
+
+    return forward;
+  }
+  var mollweideRaw = mollweideBromleyRaw(sqrt2 / halfPi, sqrt2, pi);
+  function geoMollweide () {
+    return projection$1(mollweideRaw).scale(169.529);
+  }
+
+  const defaultPath = geoPath();
+  const projectionProperties = [// standard properties in d3-geo
+  'clipAngle', 'clipExtent', 'scale', 'translate', 'center', 'rotate', 'parallels', 'precision', 'reflectX', 'reflectY', // extended properties in d3-geo-projections
+  'coefficient', 'distance', 'fraction', 'lobes', 'parallel', 'radius', 'ratio', 'spacing', 'tilt'];
+  /**
+   * Augment projections with their type and a copy method.
+   */
+
+  function create$1(type, constructor) {
+    return function projection() {
+      const p = constructor();
+      p.type = type;
+      p.path = geoPath().projection(p);
+
+      p.copy = p.copy || function () {
+        const c = projection();
+        projectionProperties.forEach(prop => {
+          if (p[prop]) c[prop](p[prop]());
+        });
+        c.path.pointRadius(p.path.pointRadius());
+        return c;
+      };
+
+      return p;
+    };
+  }
+
+  function projection(type, proj) {
+    if (!type || typeof type !== 'string') {
+      throw new Error('Projection type must be a name string.');
+    }
+
+    type = type.toLowerCase();
+
+    if (arguments.length > 1) {
+      projections[type] = create$1(type, proj);
+      return this;
+    } else {
+      return projections[type] || null;
+    }
+  }
+
+  function getProjectionPath(proj) {
+    return proj && proj.path || defaultPath;
+  }
+
+  const projections = {
+    // base d3-geo projection types
+    albers: geoAlbers,
+    albersusa: geoAlbersUsa,
+    azimuthalequalarea: geoAzimuthalEqualArea,
+    azimuthalequidistant: geoAzimuthalEquidistant,
+    conicconformal: geoConicConformal,
+    conicequalarea: geoConicEqualArea,
+    conicequidistant: geoConicEquidistant,
+    equalEarth: geoEqualEarth,
+    equirectangular: geoEquirectangular,
+    gnomonic: geoGnomonic,
+    identity: geoIdentity,
+    mercator: geoMercator,
+    mollweide: geoMollweide,
+    naturalEarth1: geoNaturalEarth1,
+    orthographic: geoOrthographic,
+    stereographic: geoStereographic,
+    transversemercator: geoTransverseMercator
+  };
+
+  for (const key in projections) {
+    projection(key, projections[key]);
+  }
+
+  function noop$1() {}
+
+  const cases = [[], [[[1.0, 1.5], [0.5, 1.0]]], [[[1.5, 1.0], [1.0, 1.5]]], [[[1.5, 1.0], [0.5, 1.0]]], [[[1.0, 0.5], [1.5, 1.0]]], [[[1.0, 1.5], [0.5, 1.0]], [[1.0, 0.5], [1.5, 1.0]]], [[[1.0, 0.5], [1.0, 1.5]]], [[[1.0, 0.5], [0.5, 1.0]]], [[[0.5, 1.0], [1.0, 0.5]]], [[[1.0, 1.5], [1.0, 0.5]]], [[[0.5, 1.0], [1.0, 0.5]], [[1.5, 1.0], [1.0, 1.5]]], [[[1.5, 1.0], [1.0, 0.5]]], [[[0.5, 1.0], [1.5, 1.0]]], [[[1.0, 1.5], [1.5, 1.0]]], [[[0.5, 1.0], [1.0, 1.5]]], []]; // Implementation adapted from d3/d3-contour. Thanks!
+
+  function contours() {
+    var dx = 1,
+        dy = 1,
+        smooth = smoothLinear;
+
+    function contours(values, tz) {
+      return tz.map(value => contour(values, value));
+    } // Accumulate, smooth contour rings, assign holes to exterior rings.
+    // Based on https://github.com/mbostock/shapefile/blob/v0.6.2/shp/polygon.js
+
+
+    function contour(values, value) {
+      var polygons = [],
+          holes = [];
+      isorings(values, value, ring => {
+        smooth(ring, values, value);
+        if (area(ring) > 0) polygons.push([ring]);else holes.push(ring);
+      });
+      holes.forEach(hole => {
+        for (var i = 0, n = polygons.length, polygon; i < n; ++i) {
+          if (contains((polygon = polygons[i])[0], hole) !== -1) {
+            polygon.push(hole);
+            return;
+          }
+        }
+      });
+      return {
+        type: 'MultiPolygon',
+        value: value,
+        coordinates: polygons
+      };
+    } // Marching squares with isolines stitched into rings.
+    // Based on https://github.com/topojson/topojson-client/blob/v3.0.0/src/stitch.js
+
+
+    function isorings(values, value, callback) {
+      var fragmentByStart = new Array(),
+          fragmentByEnd = new Array(),
+          x,
+          y,
+          t0,
+          t1,
+          t2,
+          t3; // Special case for the first row (y = -1, t2 = t3 = 0).
+
+      x = y = -1;
+      t1 = values[0] >= value;
+      cases[t1 << 1].forEach(stitch);
+
+      while (++x < dx - 1) {
+        t0 = t1, t1 = values[x + 1] >= value;
+        cases[t0 | t1 << 1].forEach(stitch);
+      }
+
+      cases[t1 << 0].forEach(stitch); // General case for the intermediate rows.
+
+      while (++y < dy - 1) {
+        x = -1;
+        t1 = values[y * dx + dx] >= value;
+        t2 = values[y * dx] >= value;
+        cases[t1 << 1 | t2 << 2].forEach(stitch);
+
+        while (++x < dx - 1) {
+          t0 = t1, t1 = values[y * dx + dx + x + 1] >= value;
+          t3 = t2, t2 = values[y * dx + x + 1] >= value;
+          cases[t0 | t1 << 1 | t2 << 2 | t3 << 3].forEach(stitch);
+        }
+
+        cases[t1 | t2 << 3].forEach(stitch);
+      } // Special case for the last row (y = dy - 1, t0 = t1 = 0).
+
+
+      x = -1;
+      t2 = values[y * dx] >= value;
+      cases[t2 << 2].forEach(stitch);
+
+      while (++x < dx - 1) {
+        t3 = t2, t2 = values[y * dx + x + 1] >= value;
+        cases[t2 << 2 | t3 << 3].forEach(stitch);
+      }
+
+      cases[t2 << 3].forEach(stitch);
+
+      function stitch(line) {
+        var start = [line[0][0] + x, line[0][1] + y],
+            end = [line[1][0] + x, line[1][1] + y],
+            startIndex = index(start),
+            endIndex = index(end),
+            f,
+            g;
+
+        if (f = fragmentByEnd[startIndex]) {
+          if (g = fragmentByStart[endIndex]) {
+            delete fragmentByEnd[f.end];
+            delete fragmentByStart[g.start];
+
+            if (f === g) {
+              f.ring.push(end);
+              callback(f.ring);
+            } else {
+              fragmentByStart[f.start] = fragmentByEnd[g.end] = {
+                start: f.start,
+                end: g.end,
+                ring: f.ring.concat(g.ring)
+              };
+            }
+          } else {
+            delete fragmentByEnd[f.end];
+            f.ring.push(end);
+            fragmentByEnd[f.end = endIndex] = f;
+          }
+        } else if (f = fragmentByStart[endIndex]) {
+          if (g = fragmentByEnd[startIndex]) {
+            delete fragmentByStart[f.start];
+            delete fragmentByEnd[g.end];
+
+            if (f === g) {
+              f.ring.push(end);
+              callback(f.ring);
+            } else {
+              fragmentByStart[g.start] = fragmentByEnd[f.end] = {
+                start: g.start,
+                end: f.end,
+                ring: g.ring.concat(f.ring)
+              };
+            }
+          } else {
+            delete fragmentByStart[f.start];
+            f.ring.unshift(start);
+            fragmentByStart[f.start = startIndex] = f;
+          }
+        } else {
+          fragmentByStart[startIndex] = fragmentByEnd[endIndex] = {
+            start: startIndex,
+            end: endIndex,
+            ring: [start, end]
+          };
+        }
+      }
+    }
+
+    function index(point) {
+      return point[0] * 2 + point[1] * (dx + 1) * 4;
+    }
+
+    function smoothLinear(ring, values, value) {
+      ring.forEach(point => {
+        var x = point[0],
+            y = point[1],
+            xt = x | 0,
+            yt = y | 0,
+            v0,
+            v1 = values[yt * dx + xt];
+
+        if (x > 0 && x < dx && xt === x) {
+          v0 = values[yt * dx + xt - 1];
+          point[0] = x + (value - v0) / (v1 - v0) - 0.5;
+        }
+
+        if (y > 0 && y < dy && yt === y) {
+          v0 = values[(yt - 1) * dx + xt];
+          point[1] = y + (value - v0) / (v1 - v0) - 0.5;
+        }
+      });
+    }
+
+    contours.contour = contour;
+
+    contours.size = function (_) {
+      if (!arguments.length) return [dx, dy];
+
+      var _0 = Math.floor(_[0]),
+          _1 = Math.floor(_[1]);
+
+      if (!(_0 >= 0 && _1 >= 0)) error('invalid size');
+      return dx = _0, dy = _1, contours;
+    };
+
+    contours.smooth = function (_) {
+      return arguments.length ? (smooth = _ ? smoothLinear : noop$1, contours) : smooth === smoothLinear;
+    };
+
+    return contours;
+  }
+
+  function area(ring) {
+    var i = 0,
+        n = ring.length,
+        area = ring[n - 1][1] * ring[0][0] - ring[n - 1][0] * ring[0][1];
+
+    while (++i < n) area += ring[i - 1][1] * ring[i][0] - ring[i - 1][0] * ring[i][1];
+
+    return area;
+  }
+
+  function contains(ring, hole) {
+    var i = -1,
+        n = hole.length,
+        c;
+
+    while (++i < n) if (c = ringContains(ring, hole[i])) return c;
+
+    return 0;
+  }
+
+  function ringContains(ring, point) {
+    var x = point[0],
+        y = point[1],
+        contains = -1;
+
+    for (var i = 0, n = ring.length, j = n - 1; i < n; j = i++) {
+      var pi = ring[i],
+          xi = pi[0],
+          yi = pi[1],
+          pj = ring[j],
+          xj = pj[0],
+          yj = pj[1];
+      if (segmentContains(pi, pj, point)) return 0;
+      if (yi > y !== yj > y && x < (xj - xi) * (y - yi) / (yj - yi) + xi) contains = -contains;
+    }
+
+    return contains;
+  }
+
+  function segmentContains(a, b, c) {
+    var i;
+    return collinear$1(a, b, c) && within(a[i = +(a[0] === b[0])], c[i], b[i]);
+  }
+
+  function collinear$1(a, b, c) {
+    return (b[0] - a[0]) * (c[1] - a[1]) === (c[0] - a[0]) * (b[1] - a[1]);
+  }
+
+  function within(p, q, r) {
+    return p <= q && q <= r || r <= q && q <= p;
+  }
+
+  function quantize(k, nice, zero) {
+    return function (values) {
+      var ex = extent(values),
+          start = zero ? Math.min(ex[0], 0) : ex[0],
+          stop = ex[1],
+          span = stop - start,
+          step = nice ? tickStep(start, stop, k) : span / (k + 1);
+      return range$1$1(start + step, stop, step);
+    };
+  }
+  /**
+   * Generate isocontours (level sets) based on input raster grid data.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} [params.field] - The field with raster grid
+   *   data. If unspecified, the tuple itself is interpreted as a raster grid.
+   * @param {Array<number>} [params.thresholds] - Contour threshold array. If
+   *   specified, the levels, nice, resolve, and zero parameters are ignored.
+   * @param {number} [params.levels] - The desired number of contour levels.
+   * @param {boolean} [params.nice] - Boolean flag indicating if the contour
+   *   threshold values should be automatically aligned to "nice"
+   *   human-friendly values. Setting this flag may cause the number of
+   *   thresholds to deviate from the specified levels.
+   * @param {string} [params.resolve] - The method for resolving thresholds
+   *   across multiple input grids. If 'independent' (the default), threshold
+   *   calculation will be performed separately for each grid. If 'shared', a
+   *   single set of threshold values will be used for all input grids.
+   * @param {boolean} [params.zero] - Boolean flag indicating if the contour
+   *   threshold values should include zero.
+   * @param {boolean} [params.smooth] - Boolean flag indicating if the contour
+   *   polygons should be smoothed using linear interpolation. The default is
+   *   true. The parameter is ignored when using density estimation.
+   * @param {boolean} [params.scale] - Optional numerical value by which to
+   *   scale the output isocontour coordinates. This parameter can be useful
+   *   to scale the contours to match a desired output resolution.
+   * @param {string} [params.as='contour'] - The output field in which to store
+   *   the generated isocontour data (default 'contour').
+   */
+
+
+  function Isocontour(params) {
+    Transform.call(this, null, params);
+  }
+
+  Isocontour.Definition = {
+    'type': 'Isocontour',
+    'metadata': {
+      'generates': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field'
+    }, {
+      'name': 'thresholds',
+      'type': 'number',
+      'array': true
+    }, {
+      'name': 'levels',
+      'type': 'number'
+    }, {
+      'name': 'nice',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'resolve',
+      'type': 'enum',
+      'values': ['shared', 'independent'],
+      'default': 'independent'
+    }, {
+      'name': 'zero',
+      'type': 'boolean',
+      'default': true
+    }, {
+      'name': 'smooth',
+      'type': 'boolean',
+      'default': true
+    }, {
+      'name': 'scale',
+      'type': 'number',
+      'expr': true
+    }, {
+      'name': 'translate',
+      'type': 'number',
+      'array': true,
+      'expr': true
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'null': true,
+      'default': 'contour'
+    }]
+  };
+  inherits(Isocontour, Transform, {
+    transform(_, pulse) {
+      if (this.value && !pulse.changed() && !_.modified()) {
+        return pulse.StopPropagation;
+      }
+
+      var out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS),
+          source = pulse.materialize(pulse.SOURCE).source,
+          field = _.field || identity$6,
+          contour = contours().smooth(_.smooth !== false),
+          tz = _.thresholds || levels(source, field, _),
+          as = _.as === null ? null : _.as || 'contour',
+          values = [];
+      source.forEach(t => {
+        const grid = field(t); // generate contour paths in GeoJSON format
+
+        const paths = contour.size([grid.width, grid.height])(grid.values, isArray(tz) ? tz : tz(grid.values)); // adjust contour path coordinates as needed
+
+        transformPaths(paths, grid, t, _); // ingest; copy source data properties to output
+
+        paths.forEach(p => {
+          values.push(rederive(t, ingest$1(as != null ? {
+            [as]: p
+          } : p)));
+        });
+      });
+      if (this.value) out.rem = this.value;
+      this.value = out.source = out.add = values;
+      return out;
+    }
+
+  });
+
+  function levels(values, f, _) {
+    const q = quantize(_.levels || 10, _.nice, _.zero !== false);
+    return _.resolve !== 'shared' ? q : q(values.map(t => max$2(f(t).values)));
+  }
+
+  function transformPaths(paths, grid, datum, _) {
+    let s = _.scale || grid.scale,
+        t = _.translate || grid.translate;
+    if (isFunction(s)) s = s(datum, _);
+    if (isFunction(t)) t = t(datum, _);
+    if ((s === 1 || s == null) && !t) return;
+    const sx = (isNumber$1(s) ? s : s[0]) || 1,
+          sy = (isNumber$1(s) ? s : s[1]) || 1,
+          tx = t && t[0] || 0,
+          ty = t && t[1] || 0;
+    paths.forEach(transform$1(grid, sx, sy, tx, ty));
+  }
+
+  function transform$1(grid, sx, sy, tx, ty) {
+    const x1 = grid.x1 || 0,
+          y1 = grid.y1 || 0,
+          flip = sx * sy < 0;
+
+    function transformPolygon(coordinates) {
+      coordinates.forEach(transformRing);
+    }
+
+    function transformRing(coordinates) {
+      if (flip) coordinates.reverse(); // maintain winding order
+
+      coordinates.forEach(transformPoint);
+    }
+
+    function transformPoint(coordinates) {
+      coordinates[0] = (coordinates[0] - x1) * sx + tx;
+      coordinates[1] = (coordinates[1] - y1) * sy + ty;
+    }
+
+    return function (geometry) {
+      geometry.coordinates.forEach(transformPolygon);
+      return geometry;
+    };
+  }
+
+  function radius(bw, data, f) {
+    const v = bw >= 0 ? bw : estimateBandwidth(data, f);
+    return Math.round((Math.sqrt(4 * v * v + 1) - 1) / 2);
+  }
+
+  function number$2(_) {
+    return isFunction(_) ? _ : constant$4(+_);
+  } // Implementation adapted from d3/d3-contour. Thanks!
+
+
+  function density2D() {
+    var x = d => d[0],
+        y = d => d[1],
+        weight = one$2,
+        bandwidth = [-1, -1],
+        dx = 960,
+        dy = 500,
+        k = 2; // log2(cellSize)
+
+
+    function density(data, counts) {
+      const rx = radius(bandwidth[0], data, x) >> k,
+            // blur x-radius
+      ry = radius(bandwidth[1], data, y) >> k,
+            // blur y-radius
+      ox = rx ? rx + 2 : 0,
+            // x-offset padding for blur
+      oy = ry ? ry + 2 : 0,
+            // y-offset padding for blur
+      n = 2 * ox + (dx >> k),
+            // grid width
+      m = 2 * oy + (dy >> k),
+            // grid height
+      values0 = new Float32Array(n * m),
+            values1 = new Float32Array(n * m);
+      let values = values0;
+      data.forEach(d => {
+        const xi = ox + (+x(d) >> k),
+              yi = oy + (+y(d) >> k);
+
+        if (xi >= 0 && xi < n && yi >= 0 && yi < m) {
+          values0[xi + yi * n] += +weight(d);
+        }
+      });
+
+      if (rx > 0 && ry > 0) {
+        blurX(n, m, values0, values1, rx);
+        blurY(n, m, values1, values0, ry);
+        blurX(n, m, values0, values1, rx);
+        blurY(n, m, values1, values0, ry);
+        blurX(n, m, values0, values1, rx);
+        blurY(n, m, values1, values0, ry);
+      } else if (rx > 0) {
+        blurX(n, m, values0, values1, rx);
+        blurX(n, m, values1, values0, rx);
+        blurX(n, m, values0, values1, rx);
+        values = values1;
+      } else if (ry > 0) {
+        blurY(n, m, values0, values1, ry);
+        blurY(n, m, values1, values0, ry);
+        blurY(n, m, values0, values1, ry);
+        values = values1;
+      } // scale density estimates
+      // density in points per square pixel or probability density
+
+
+      const s = counts ? Math.pow(2, -2 * k) : 1 / sum(values);
+
+      for (let i = 0, sz = n * m; i < sz; ++i) values[i] *= s;
+
+      return {
+        values: values,
+        scale: 1 << k,
+        width: n,
+        height: m,
+        x1: ox,
+        y1: oy,
+        x2: ox + (dx >> k),
+        y2: oy + (dy >> k)
+      };
+    }
+
+    density.x = function (_) {
+      return arguments.length ? (x = number$2(_), density) : x;
+    };
+
+    density.y = function (_) {
+      return arguments.length ? (y = number$2(_), density) : y;
+    };
+
+    density.weight = function (_) {
+      return arguments.length ? (weight = number$2(_), density) : weight;
+    };
+
+    density.size = function (_) {
+      if (!arguments.length) return [dx, dy];
+
+      var _0 = +_[0],
+          _1 = +_[1];
+
+      if (!(_0 >= 0 && _1 >= 0)) error('invalid size');
+      return dx = _0, dy = _1, density;
+    };
+
+    density.cellSize = function (_) {
+      if (!arguments.length) return 1 << k;
+      if (!((_ = +_) >= 1)) error('invalid cell size');
+      k = Math.floor(Math.log(_) / Math.LN2);
+      return density;
+    };
+
+    density.bandwidth = function (_) {
+      if (!arguments.length) return bandwidth;
+      _ = array$5(_);
+      if (_.length === 1) _ = [+_[0], +_[0]];
+      if (_.length !== 2) error('invalid bandwidth');
+      return bandwidth = _, density;
+    };
+
+    return density;
+  }
+
+  function blurX(n, m, source, target, r) {
+    const w = (r << 1) + 1;
+
+    for (let j = 0; j < m; ++j) {
+      for (let i = 0, sr = 0; i < n + r; ++i) {
+        if (i < n) {
+          sr += source[i + j * n];
+        }
+
+        if (i >= r) {
+          if (i >= w) {
+            sr -= source[i - w + j * n];
+          }
+
+          target[i - r + j * n] = sr / Math.min(i + 1, n - 1 + w - i, w);
+        }
+      }
+    }
+  }
+
+  function blurY(n, m, source, target, r) {
+    const w = (r << 1) + 1;
+
+    for (let i = 0; i < n; ++i) {
+      for (let j = 0, sr = 0; j < m + r; ++j) {
+        if (j < m) {
+          sr += source[i + j * n];
+        }
+
+        if (j >= r) {
+          if (j >= w) {
+            sr -= source[i + (j - w) * n];
+          }
+
+          target[i + (j - r) * n] = sr / Math.min(j + 1, m - 1 + w - j, w);
+        }
+      }
+    }
+  }
+  /**
+   * Perform 2D kernel-density estimation of point data.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<number>} params.size - The [width, height] extent (in
+   *   units of input pixels) over which to perform density estimation.
+   * @param {function(object): number} params.x - The x-coordinate accessor.
+   * @param {function(object): number} params.y - The y-coordinate accessor.
+   * @param {function(object): number} [params.weight] - The weight accessor.
+   * @param {Array<function(object): *>} [params.groupby] - An array of accessors
+   *   to groupby.
+   * @param {number} [params.cellSize] - Contour density calculation cell size.
+   *   This parameter determines the level of spatial approximation. For example,
+   *   the default value of 4 maps to 2x reductions in both x- and y- dimensions.
+   *   A value of 1 will result in an output raster grid whose dimensions exactly
+   *   matches the size parameter.
+   * @param {Array<number>} [params.bandwidth] - The KDE kernel bandwidths,
+   *   in pixels. The input can be a two-element array specifying separate
+   *   x and y bandwidths, or a single-element array specifying both. If the
+   *   bandwidth is unspecified or less than zero, the bandwidth will be
+   *   automatically determined.
+   * @param {boolean} [params.counts=false] - A boolean flag indicating if the
+   *   output values should be probability estimates (false, default) or
+   *   smoothed counts (true).
+   * @param {string} [params.as='grid'] - The output field in which to store
+   *   the generated raster grid (default 'grid').
+   */
+
+
+  function KDE2D(params) {
+    Transform.call(this, null, params);
+  }
+
+  KDE2D.Definition = {
+    'type': 'KDE2D',
+    'metadata': {
+      'generates': true
+    },
+    'params': [{
+      'name': 'size',
+      'type': 'number',
+      'array': true,
+      'length': 2,
+      'required': true
+    }, {
+      'name': 'x',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'y',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'weight',
+      'type': 'field'
+    }, {
+      'name': 'groupby',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'cellSize',
+      'type': 'number'
+    }, {
+      'name': 'bandwidth',
+      'type': 'number',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'counts',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'default': 'grid'
+    }]
+  };
+  const PARAMS = ['x', 'y', 'weight', 'size', 'cellSize', 'bandwidth'];
+
+  function params(obj, _) {
+    PARAMS.forEach(param => _[param] != null ? obj[param](_[param]) : 0);
+    return obj;
+  }
+
+  inherits(KDE2D, Transform, {
+    transform(_, pulse) {
+      if (this.value && !pulse.changed() && !_.modified()) return pulse.StopPropagation;
+      var out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS),
+          source = pulse.materialize(pulse.SOURCE).source,
+          groups = partition$2(source, _.groupby),
+          names = (_.groupby || []).map(accessorName),
+          kde = params(density2D(), _),
+          as = _.as || 'grid',
+          values = [];
+
+      function set(t, vals) {
+        for (let i = 0; i < names.length; ++i) t[names[i]] = vals[i];
+
+        return t;
+      } // generate density raster grids
+
+
+      values = groups.map(g => ingest$1(set({
+        [as]: kde(g, _.counts)
+      }, g.dims)));
+      if (this.value) out.rem = this.value;
+      this.value = out.source = out.add = values;
+      return out;
+    }
+
+  });
+
+  function partition$2(data, groupby) {
+    var groups = [],
+        get = f => f(t),
+        map,
+        i,
+        n,
+        t,
+        k,
+        g; // partition data points into groups
+
+
+    if (groupby == null) {
+      groups.push(data);
+    } else {
+      for (map = {}, i = 0, n = data.length; i < n; ++i) {
+        t = data[i];
+        k = groupby.map(get);
+        g = map[k];
+
+        if (!g) {
+          map[k] = g = [];
+          g.dims = k;
+          groups.push(g);
+        }
+
+        g.push(t);
+      }
+    }
+
+    return groups;
+  }
+  /**
+   * Generate contours based on kernel-density estimation of point data.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<number>} params.size - The dimensions [width, height] over which to compute contours.
+   *  If the values parameter is provided, this must be the dimensions of the input data.
+   *  If density estimation is performed, this is the output view dimensions in pixels.
+   * @param {Array<number>} [params.values] - An array of numeric values representing an
+   *  width x height grid of values over which to compute contours. If unspecified, this
+   *  transform will instead attempt to compute contours for the kernel density estimate
+   *  using values drawn from data tuples in the input pulse.
+   * @param {function(object): number} [params.x] - The pixel x-coordinate accessor for density estimation.
+   * @param {function(object): number} [params.y] - The pixel y-coordinate accessor for density estimation.
+   * @param {function(object): number} [params.weight] - The data point weight accessor for density estimation.
+   * @param {number} [params.cellSize] - Contour density calculation cell size.
+   * @param {number} [params.bandwidth] - Kernel density estimation bandwidth.
+   * @param {Array<number>} [params.thresholds] - Contour threshold array. If
+   *   this parameter is set, the count and nice parameters will be ignored.
+   * @param {number} [params.count] - The desired number of contours.
+   * @param {boolean} [params.nice] - Boolean flag indicating if the contour
+   *   threshold values should be automatically aligned to "nice"
+   *   human-friendly values. Setting this flag may cause the number of
+   *   thresholds to deviate from the specified count.
+   * @param {boolean} [params.smooth] - Boolean flag indicating if the contour
+   *   polygons should be smoothed using linear interpolation. The default is
+   *   true. The parameter is ignored when using density estimation.
+   */
+
+
+  function Contour(params) {
+    Transform.call(this, null, params);
+  }
+
+  Contour.Definition = {
+    'type': 'Contour',
+    'metadata': {
+      'generates': true
+    },
+    'params': [{
+      'name': 'size',
+      'type': 'number',
+      'array': true,
+      'length': 2,
+      'required': true
+    }, {
+      'name': 'values',
+      'type': 'number',
+      'array': true
+    }, {
+      'name': 'x',
+      'type': 'field'
+    }, {
+      'name': 'y',
+      'type': 'field'
+    }, {
+      'name': 'weight',
+      'type': 'field'
+    }, {
+      'name': 'cellSize',
+      'type': 'number'
+    }, {
+      'name': 'bandwidth',
+      'type': 'number'
+    }, {
+      'name': 'count',
+      'type': 'number'
+    }, {
+      'name': 'nice',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'thresholds',
+      'type': 'number',
+      'array': true
+    }, {
+      'name': 'smooth',
+      'type': 'boolean',
+      'default': true
+    }]
+  };
+  inherits(Contour, Transform, {
+    transform(_, pulse) {
+      if (this.value && !pulse.changed() && !_.modified()) {
+        return pulse.StopPropagation;
+      }
+
+      var out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS),
+          contour = contours().smooth(_.smooth !== false),
+          values = _.values,
+          thresh = _.thresholds || quantize(_.count || 10, _.nice, !!values),
+          size = _.size,
+          grid,
+          post;
+
+      if (!values) {
+        values = pulse.materialize(pulse.SOURCE).source;
+        grid = params(density2D(), _)(values, true);
+        post = transform$1(grid, grid.scale || 1, grid.scale || 1, 0, 0);
+        size = [grid.width, grid.height];
+        values = grid.values;
+      }
+
+      thresh = isArray(thresh) ? thresh : thresh(values);
+      values = contour.size(size)(values, thresh);
+      if (post) values.forEach(post);
+      if (this.value) out.rem = this.value;
+      this.value = out.source = out.add = (values || []).map(ingest$1);
+      return out;
+    }
+
+  });
+  const Feature = 'Feature';
+  const FeatureCollection = 'FeatureCollection';
+  const MultiPoint = 'MultiPoint';
+  /**
+   * Consolidate an array of [longitude, latitude] points or GeoJSON features
+   * into a combined GeoJSON object. This transform is particularly useful for
+   * combining geo data for a Projection's fit argument. The resulting GeoJSON
+   * data is available as this transform's value. Input pulses are unchanged.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<function(object): *>} [params.fields] - A two-element array
+   *   of field accessors for the longitude and latitude values.
+   * @param {function(object): *} params.geojson - A field accessor for
+   *   retrieving GeoJSON feature data.
+   */
+
+  function GeoJSON(params) {
+    Transform.call(this, null, params);
+  }
+
+  GeoJSON.Definition = {
+    'type': 'GeoJSON',
+    'metadata': {},
+    'params': [{
+      'name': 'fields',
+      'type': 'field',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'geojson',
+      'type': 'field'
+    }]
+  };
+  inherits(GeoJSON, Transform, {
+    transform(_, pulse) {
+      var features = this._features,
+          points = this._points,
+          fields = _.fields,
+          lon = fields && fields[0],
+          lat = fields && fields[1],
+          geojson = _.geojson || !fields && identity$6,
+          flag = pulse.ADD,
+          mod;
+      mod = _.modified() || pulse.changed(pulse.REM) || pulse.modified(accessorFields(geojson)) || lon && pulse.modified(accessorFields(lon)) || lat && pulse.modified(accessorFields(lat));
+
+      if (!this.value || mod) {
+        flag = pulse.SOURCE;
+        this._features = features = [];
+        this._points = points = [];
+      }
+
+      if (geojson) {
+        pulse.visit(flag, t => features.push(geojson(t)));
+      }
+
+      if (lon && lat) {
+        pulse.visit(flag, t => {
+          var x = lon(t),
+              y = lat(t);
+
+          if (x != null && y != null && (x = +x) === x && (y = +y) === y) {
+            points.push([x, y]);
+          }
+        });
+        features = features.concat({
+          type: Feature,
+          geometry: {
+            type: MultiPoint,
+            coordinates: points
+          }
+        });
+      }
+
+      this.value = {
+        type: FeatureCollection,
+        features: features
+      };
+    }
+
+  });
+  /**
+   * Map GeoJSON data to an SVG path string.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(number, number): *} params.projection - The cartographic
+   *   projection to apply.
+   * @param {function(object): *} [params.field] - The field with GeoJSON data,
+   *   or null if the tuple itself is a GeoJSON feature.
+   * @param {string} [params.as='path'] - The output field in which to store
+   *   the generated path data (default 'path').
+   */
+
+  function GeoPath(params) {
+    Transform.call(this, null, params);
+  }
+
+  GeoPath.Definition = {
+    'type': 'GeoPath',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'projection',
+      'type': 'projection'
+    }, {
+      'name': 'field',
+      'type': 'field'
+    }, {
+      'name': 'pointRadius',
+      'type': 'number',
+      'expr': true
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'default': 'path'
+    }]
+  };
+  inherits(GeoPath, Transform, {
+    transform(_, pulse) {
+      var out = pulse.fork(pulse.ALL),
+          path = this.value,
+          field = _.field || identity$6,
+          as = _.as || 'path',
+          flag = out.SOURCE;
+
+      if (!path || _.modified()) {
+        // parameters updated, reset and reflow
+        this.value = path = getProjectionPath(_.projection);
+        out.materialize().reflow();
+      } else {
+        flag = field === identity$6 || pulse.modified(field.fields) ? out.ADD_MOD : out.ADD;
+      }
+
+      const prev = initPath(path, _.pointRadius);
+      out.visit(flag, t => t[as] = path(field(t)));
+      path.pointRadius(prev);
+      return out.modifies(as);
+    }
+
+  });
+
+  function initPath(path, pointRadius) {
+    const prev = path.pointRadius();
+    path.context(null);
+
+    if (pointRadius != null) {
+      path.pointRadius(pointRadius);
+    }
+
+    return prev;
+  }
+  /**
+   * Geo-code a longitude/latitude point to an x/y coordinate.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(number, number): *} params.projection - The cartographic
+   *   projection to apply.
+   * @param {Array<function(object): *>} params.fields - A two-element array of
+   *   field accessors for the longitude and latitude values.
+   * @param {Array<string>} [params.as] - A two-element array of field names
+   *   under which to store the result. Defaults to ['x','y'].
+   */
+
+
+  function GeoPoint(params) {
+    Transform.call(this, null, params);
+  }
+
+  GeoPoint.Definition = {
+    'type': 'GeoPoint',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'projection',
+      'type': 'projection',
+      'required': true
+    }, {
+      'name': 'fields',
+      'type': 'field',
+      'array': true,
+      'required': true,
+      'length': 2
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': 2,
+      'default': ['x', 'y']
+    }]
+  };
+  inherits(GeoPoint, Transform, {
+    transform(_, pulse) {
+      var proj = _.projection,
+          lon = _.fields[0],
+          lat = _.fields[1],
+          as = _.as || ['x', 'y'],
+          x = as[0],
+          y = as[1],
+          mod;
+
+      function set(t) {
+        const xy = proj([lon(t), lat(t)]);
+
+        if (xy) {
+          t[x] = xy[0];
+          t[y] = xy[1];
+        } else {
+          t[x] = undefined;
+          t[y] = undefined;
+        }
+      }
+
+      if (_.modified()) {
+        // parameters updated, reflow
+        pulse = pulse.materialize().reflow(true).visit(pulse.SOURCE, set);
+      } else {
+        mod = pulse.modified(lon.fields) || pulse.modified(lat.fields);
+        pulse.visit(mod ? pulse.ADD_MOD : pulse.ADD, set);
+      }
+
+      return pulse.modifies(as);
+    }
+
+  });
+  /**
+   * Annotate items with a geopath shape generator.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(number, number): *} params.projection - The cartographic
+   *   projection to apply.
+   * @param {function(object): *} [params.field] - The field with GeoJSON data,
+   *   or null if the tuple itself is a GeoJSON feature.
+   * @param {string} [params.as='shape'] - The output field in which to store
+   *   the generated path data (default 'shape').
+   */
+
+  function GeoShape(params) {
+    Transform.call(this, null, params);
+  }
+
+  GeoShape.Definition = {
+    'type': 'GeoShape',
+    'metadata': {
+      'modifies': true,
+      'nomod': true
+    },
+    'params': [{
+      'name': 'projection',
+      'type': 'projection'
+    }, {
+      'name': 'field',
+      'type': 'field',
+      'default': 'datum'
+    }, {
+      'name': 'pointRadius',
+      'type': 'number',
+      'expr': true
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'default': 'shape'
+    }]
+  };
+  inherits(GeoShape, Transform, {
+    transform(_, pulse) {
+      var out = pulse.fork(pulse.ALL),
+          shape = this.value,
+          as = _.as || 'shape',
+          flag = out.ADD;
+
+      if (!shape || _.modified()) {
+        // parameters updated, reset and reflow
+        this.value = shape = shapeGenerator(getProjectionPath(_.projection), _.field || field$1('datum'), _.pointRadius);
+        out.materialize().reflow();
+        flag = out.SOURCE;
+      }
+
+      out.visit(flag, t => t[as] = shape);
+      return out.modifies(as);
+    }
+
+  });
+
+  function shapeGenerator(path, field, pointRadius) {
+    const shape = pointRadius == null ? _ => path(field(_)) : _ => {
+      var prev = path.pointRadius(),
+          value = path.pointRadius(pointRadius)(field(_));
+      path.pointRadius(prev);
+      return value;
+    };
+
+    shape.context = _ => {
+      path.context(_);
+      return shape;
+    };
+
+    return shape;
+  }
+  /**
+   * GeoJSON feature generator for creating graticules.
+   * @constructor
+   */
+
+
+  function Graticule(params) {
+    Transform.call(this, [], params);
+    this.generator = graticule();
+  }
+
+  Graticule.Definition = {
+    'type': 'Graticule',
+    'metadata': {
+      'changes': true,
+      'generates': true
+    },
+    'params': [{
+      'name': 'extent',
+      'type': 'array',
+      'array': true,
+      'length': 2,
+      'content': {
+        'type': 'number',
+        'array': true,
+        'length': 2
+      }
+    }, {
+      'name': 'extentMajor',
+      'type': 'array',
+      'array': true,
+      'length': 2,
+      'content': {
+        'type': 'number',
+        'array': true,
+        'length': 2
+      }
+    }, {
+      'name': 'extentMinor',
+      'type': 'array',
+      'array': true,
+      'length': 2,
+      'content': {
+        'type': 'number',
+        'array': true,
+        'length': 2
+      }
+    }, {
+      'name': 'step',
+      'type': 'number',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'stepMajor',
+      'type': 'number',
+      'array': true,
+      'length': 2,
+      'default': [90, 360]
+    }, {
+      'name': 'stepMinor',
+      'type': 'number',
+      'array': true,
+      'length': 2,
+      'default': [10, 10]
+    }, {
+      'name': 'precision',
+      'type': 'number',
+      'default': 2.5
+    }]
+  };
+  inherits(Graticule, Transform, {
+    transform(_, pulse) {
+      var src = this.value,
+          gen = this.generator,
+          t;
+
+      if (!src.length || _.modified()) {
+        for (const prop in _) {
+          if (isFunction(gen[prop])) {
+            gen[prop](_[prop]);
+          }
+        }
+      }
+
+      t = gen();
+
+      if (src.length) {
+        pulse.mod.push(replace$1(src[0], t));
+      } else {
+        pulse.add.push(ingest$1(t));
+      }
+
+      src[0] = t;
+      return pulse;
+    }
+
+  });
+  /**
+   * Render a heatmap image for input raster grid data.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} [params.field] - The field with raster grid
+   *   data. If unspecified, the tuple itself is interpreted as a raster grid.
+   * @param {string} [params.color] - A constant color value or function for
+   *   individual pixel color. If a function, it will be invoked with an input
+   *   object that includes $x, $y, $value, and $max fields for the grid.
+   * @param {number} [params.opacity] - A constant opacity value or function for
+   *   individual pixel opacity. If a function, it will be invoked with an input
+   *   object that includes $x, $y, $value, and $max fields for the grid.
+   * @param {string} [params.resolve] - The method for resolving maximum values
+   *   across multiple input grids. If 'independent' (the default), maximum
+   *   calculation will be performed separately for each grid. If 'shared',
+   *   a single global maximum will be used for all input grids.
+   * @param {string} [params.as='image'] - The output field in which to store
+   *   the generated bitmap canvas images (default 'image').
+   */
+
+  function Heatmap(params) {
+    Transform.call(this, null, params);
+  }
+
+  Heatmap.Definition = {
+    'type': 'heatmap',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field'
+    }, {
+      'name': 'color',
+      'type': 'string',
+      'expr': true
+    }, {
+      'name': 'opacity',
+      'type': 'number',
+      'expr': true
+    }, {
+      'name': 'resolve',
+      'type': 'enum',
+      'values': ['shared', 'independent'],
+      'default': 'independent'
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'default': 'image'
+    }]
+  };
+  inherits(Heatmap, Transform, {
+    transform(_, pulse) {
+      if (!pulse.changed() && !_.modified()) {
+        return pulse.StopPropagation;
+      }
+
+      var source = pulse.materialize(pulse.SOURCE).source,
+          shared = _.resolve === 'shared',
+          field = _.field || identity$6,
+          opacity = opacity_(_.opacity, _),
+          color = color_(_.color, _),
+          as = _.as || 'image',
+          obj = {
+        $x: 0,
+        $y: 0,
+        $value: 0,
+        $max: shared ? max$2(source.map(t => max$2(field(t).values))) : 0
+      };
+      source.forEach(t => {
+        const v = field(t); // build proxy data object
+
+        const o = extend$1({}, t, obj); // set maximum value if not globally shared
+
+        if (!shared) o.$max = max$2(v.values || []); // generate canvas image
+        // optimize color/opacity if not pixel-dependent
+
+        t[as] = toCanvas(v, o, color.dep ? color : constant$4(color(o)), opacity.dep ? opacity : constant$4(opacity(o)));
+      });
+      return pulse.reflow(true).modifies(as);
+    }
+
+  }); // get image color function
+
+  function color_(color, _) {
+    let f;
+
+    if (isFunction(color)) {
+      f = obj => rgb$1(color(obj, _));
+
+      f.dep = dependency(color);
+    } else {
+      // default to mid-grey
+      f = constant$4(rgb$1(color || '#888'));
+    }
+
+    return f;
+  } // get image opacity function
+
+
+  function opacity_(opacity, _) {
+    let f;
+
+    if (isFunction(opacity)) {
+      f = obj => opacity(obj, _);
+
+      f.dep = dependency(opacity);
+    } else if (opacity) {
+      f = constant$4(opacity);
+    } else {
+      // default to [0, max] opacity gradient
+      f = obj => obj.$value / obj.$max || 0;
+
+      f.dep = true;
+    }
+
+    return f;
+  } // check if function depends on individual pixel data
+
+
+  function dependency(f) {
+    if (!isFunction(f)) return false;
+    const set = toSet(accessorFields(f));
+    return set.$x || set.$y || set.$value || set.$max;
+  } // render raster grid to canvas
+
+
+  function toCanvas(grid, obj, color, opacity) {
+    const n = grid.width,
+          m = grid.height,
+          x1 = grid.x1 || 0,
+          y1 = grid.y1 || 0,
+          x2 = grid.x2 || n,
+          y2 = grid.y2 || m,
+          val = grid.values,
+          value = val ? i => val[i] : zero$2,
+          can = domCanvas(x2 - x1, y2 - y1),
+          ctx = can.getContext('2d'),
+          img = ctx.getImageData(0, 0, x2 - x1, y2 - y1),
+          pix = img.data;
+
+    for (let j = y1, k = 0; j < y2; ++j) {
+      obj.$y = j - y1;
+
+      for (let i = x1, r = j * n; i < x2; ++i, k += 4) {
+        obj.$x = i - x1;
+        obj.$value = value(i + r);
+        const v = color(obj);
+        pix[k + 0] = v.r;
+        pix[k + 1] = v.g;
+        pix[k + 2] = v.b;
+        pix[k + 3] = ~~(255 * opacity(obj));
+      }
+    }
+
+    ctx.putImageData(img, 0, 0);
+    return can;
+  }
+  /**
+   * Maintains a cartographic projection.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   */
+
+
+  function Projection$1(params) {
+    Transform.call(this, null, params);
+    this.modified(true); // always treat as modified
+  }
+
+  inherits(Projection$1, Transform, {
+    transform(_, pulse) {
+      let proj = this.value;
+
+      if (!proj || _.modified('type')) {
+        this.value = proj = create(_.type);
+        projectionProperties.forEach(prop => {
+          if (_[prop] != null) set$1(proj, prop, _[prop]);
+        });
+      } else {
+        projectionProperties.forEach(prop => {
+          if (_.modified(prop)) set$1(proj, prop, _[prop]);
+        });
+      }
+
+      if (_.pointRadius != null) proj.path.pointRadius(_.pointRadius);
+      if (_.fit) fit(proj, _);
+      return pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS);
+    }
+
+  });
+
+  function fit(proj, _) {
+    const data = collectGeoJSON(_.fit);
+    _.extent ? proj.fitExtent(_.extent, data) : _.size ? proj.fitSize(_.size, data) : 0;
+  }
+
+  function create(type) {
+    const constructor = projection((type || 'mercator').toLowerCase());
+    if (!constructor) error('Unrecognized projection type: ' + type);
+    return constructor();
+  }
+
+  function set$1(proj, key, value) {
+    if (isFunction(proj[key])) proj[key](value);
+  }
+
+  function collectGeoJSON(data) {
+    data = array$5(data);
+    return data.length === 1 ? data[0] : {
+      type: FeatureCollection,
+      features: data.reduce((a, f) => a.concat(featurize(f)), [])
+    };
+  }
+
+  function featurize(f) {
+    return f.type === FeatureCollection ? f.features : array$5(f).filter(d => d != null).map(d => d.type === Feature ? d : {
+      type: Feature,
+      geometry: d
+    });
+  }
+
+  var geo = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    contour: Contour,
+    geojson: GeoJSON,
+    geopath: GeoPath,
+    geopoint: GeoPoint,
+    geoshape: GeoShape,
+    graticule: Graticule,
+    heatmap: Heatmap,
+    isocontour: Isocontour,
+    kde2d: KDE2D,
+    projection: Projection$1
+  });
+
+  function forceCenter (x, y) {
+    var nodes,
+        strength = 1;
+    if (x == null) x = 0;
+    if (y == null) y = 0;
+
+    function force() {
+      var i,
+          n = nodes.length,
+          node,
+          sx = 0,
+          sy = 0;
+
+      for (i = 0; i < n; ++i) {
+        node = nodes[i], sx += node.x, sy += node.y;
+      }
+
+      for (sx = (sx / n - x) * strength, sy = (sy / n - y) * strength, i = 0; i < n; ++i) {
+        node = nodes[i], node.x -= sx, node.y -= sy;
+      }
+    }
+
+    force.initialize = function (_) {
+      nodes = _;
+    };
+
+    force.x = function (_) {
+      return arguments.length ? (x = +_, force) : x;
+    };
+
+    force.y = function (_) {
+      return arguments.length ? (y = +_, force) : y;
+    };
+
+    force.strength = function (_) {
+      return arguments.length ? (strength = +_, force) : strength;
+    };
+
+    return force;
+  }
+
+  function tree_add (d) {
+    const x = +this._x.call(null, d),
+          y = +this._y.call(null, d);
+    return add(this.cover(x, y), x, y, d);
+  }
+
+  function add(tree, x, y, d) {
+    if (isNaN(x) || isNaN(y)) return tree; // ignore invalid points
+
+    var parent,
+        node = tree._root,
+        leaf = {
+      data: d
+    },
+        x0 = tree._x0,
+        y0 = tree._y0,
+        x1 = tree._x1,
+        y1 = tree._y1,
+        xm,
+        ym,
+        xp,
+        yp,
+        right,
+        bottom,
+        i,
+        j; // If the tree is empty, initialize the root as a leaf.
+
+    if (!node) return tree._root = leaf, tree; // Find the existing leaf for the new point, or add it.
+
+    while (node.length) {
+      if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm;else x1 = xm;
+      if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym;else y1 = ym;
+      if (parent = node, !(node = node[i = bottom << 1 | right])) return parent[i] = leaf, tree;
+    } // Is the new point is exactly coincident with the existing point?
+
+
+    xp = +tree._x.call(null, node.data);
+    yp = +tree._y.call(null, node.data);
+    if (x === xp && y === yp) return leaf.next = node, parent ? parent[i] = leaf : tree._root = leaf, tree; // Otherwise, split the leaf node until the old and new point are separated.
+
+    do {
+      parent = parent ? parent[i] = new Array(4) : tree._root = new Array(4);
+      if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm;else x1 = xm;
+      if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym;else y1 = ym;
+    } while ((i = bottom << 1 | right) === (j = (yp >= ym) << 1 | xp >= xm));
+
+    return parent[j] = node, parent[i] = leaf, tree;
+  }
+
+  function addAll(data) {
+    var d,
+        i,
+        n = data.length,
+        x,
+        y,
+        xz = new Array(n),
+        yz = new Array(n),
+        x0 = Infinity,
+        y0 = Infinity,
+        x1 = -Infinity,
+        y1 = -Infinity; // Compute the points and their extent.
+
+    for (i = 0; i < n; ++i) {
+      if (isNaN(x = +this._x.call(null, d = data[i])) || isNaN(y = +this._y.call(null, d))) continue;
+      xz[i] = x;
+      yz[i] = y;
+      if (x < x0) x0 = x;
+      if (x > x1) x1 = x;
+      if (y < y0) y0 = y;
+      if (y > y1) y1 = y;
+    } // If there were no (valid) points, abort.
+
+
+    if (x0 > x1 || y0 > y1) return this; // Expand the tree to cover the new points.
+
+    this.cover(x0, y0).cover(x1, y1); // Add the new points.
+
+    for (i = 0; i < n; ++i) {
+      add(this, xz[i], yz[i], data[i]);
+    }
+
+    return this;
+  }
+
+  function tree_cover (x, y) {
+    if (isNaN(x = +x) || isNaN(y = +y)) return this; // ignore invalid points
+
+    var x0 = this._x0,
+        y0 = this._y0,
+        x1 = this._x1,
+        y1 = this._y1; // If the quadtree has no extent, initialize them.
+    // Integer extent are necessary so that if we later double the extent,
+    // the existing quadrant boundaries don’t change due to floating point error!
+
+    if (isNaN(x0)) {
+      x1 = (x0 = Math.floor(x)) + 1;
+      y1 = (y0 = Math.floor(y)) + 1;
+    } // Otherwise, double repeatedly to cover.
+    else {
+      var z = x1 - x0 || 1,
+          node = this._root,
+          parent,
+          i;
+
+      while (x0 > x || x >= x1 || y0 > y || y >= y1) {
+        i = (y < y0) << 1 | x < x0;
+        parent = new Array(4), parent[i] = node, node = parent, z *= 2;
+
+        switch (i) {
+          case 0:
+            x1 = x0 + z, y1 = y0 + z;
+            break;
+
+          case 1:
+            x0 = x1 - z, y1 = y0 + z;
+            break;
+
+          case 2:
+            x1 = x0 + z, y0 = y1 - z;
+            break;
+
+          case 3:
+            x0 = x1 - z, y0 = y1 - z;
+            break;
+        }
+      }
+
+      if (this._root && this._root.length) this._root = node;
+    }
+
+    this._x0 = x0;
+    this._y0 = y0;
+    this._x1 = x1;
+    this._y1 = y1;
+    return this;
+  }
+
+  function tree_data () {
+    var data = [];
+    this.visit(function (node) {
+      if (!node.length) do data.push(node.data); while (node = node.next);
+    });
+    return data;
+  }
+
+  function tree_extent (_) {
+    return arguments.length ? this.cover(+_[0][0], +_[0][1]).cover(+_[1][0], +_[1][1]) : isNaN(this._x0) ? undefined : [[this._x0, this._y0], [this._x1, this._y1]];
+  }
+
+  function Quad (node, x0, y0, x1, y1) {
+    this.node = node;
+    this.x0 = x0;
+    this.y0 = y0;
+    this.x1 = x1;
+    this.y1 = y1;
+  }
+
+  function tree_find (x, y, radius) {
+    var data,
+        x0 = this._x0,
+        y0 = this._y0,
+        x1,
+        y1,
+        x2,
+        y2,
+        x3 = this._x1,
+        y3 = this._y1,
+        quads = [],
+        node = this._root,
+        q,
+        i;
+    if (node) quads.push(new Quad(node, x0, y0, x3, y3));
+    if (radius == null) radius = Infinity;else {
+      x0 = x - radius, y0 = y - radius;
+      x3 = x + radius, y3 = y + radius;
+      radius *= radius;
+    }
+
+    while (q = quads.pop()) {
+      // Stop searching if this quadrant can’t contain a closer node.
+      if (!(node = q.node) || (x1 = q.x0) > x3 || (y1 = q.y0) > y3 || (x2 = q.x1) < x0 || (y2 = q.y1) < y0) continue; // Bisect the current quadrant.
+
+      if (node.length) {
+        var xm = (x1 + x2) / 2,
+            ym = (y1 + y2) / 2;
+        quads.push(new Quad(node[3], xm, ym, x2, y2), new Quad(node[2], x1, ym, xm, y2), new Quad(node[1], xm, y1, x2, ym), new Quad(node[0], x1, y1, xm, ym)); // Visit the closest quadrant first.
+
+        if (i = (y >= ym) << 1 | x >= xm) {
+          q = quads[quads.length - 1];
+          quads[quads.length - 1] = quads[quads.length - 1 - i];
+          quads[quads.length - 1 - i] = q;
+        }
+      } // Visit this point. (Visiting coincident points isn’t necessary!)
+      else {
+        var dx = x - +this._x.call(null, node.data),
+            dy = y - +this._y.call(null, node.data),
+            d2 = dx * dx + dy * dy;
+
+        if (d2 < radius) {
+          var d = Math.sqrt(radius = d2);
+          x0 = x - d, y0 = y - d;
+          x3 = x + d, y3 = y + d;
+          data = node.data;
+        }
+      }
+    }
+
+    return data;
+  }
+
+  function tree_remove (d) {
+    if (isNaN(x = +this._x.call(null, d)) || isNaN(y = +this._y.call(null, d))) return this; // ignore invalid points
+
+    var parent,
+        node = this._root,
+        retainer,
+        previous,
+        next,
+        x0 = this._x0,
+        y0 = this._y0,
+        x1 = this._x1,
+        y1 = this._y1,
+        x,
+        y,
+        xm,
+        ym,
+        right,
+        bottom,
+        i,
+        j; // If the tree is empty, initialize the root as a leaf.
+
+    if (!node) return this; // Find the leaf node for the point.
+    // While descending, also retain the deepest parent with a non-removed sibling.
+
+    if (node.length) while (true) {
+      if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm;else x1 = xm;
+      if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym;else y1 = ym;
+      if (!(parent = node, node = node[i = bottom << 1 | right])) return this;
+      if (!node.length) break;
+      if (parent[i + 1 & 3] || parent[i + 2 & 3] || parent[i + 3 & 3]) retainer = parent, j = i;
+    } // Find the point to remove.
+
+    while (node.data !== d) if (!(previous = node, node = node.next)) return this;
+
+    if (next = node.next) delete node.next; // If there are multiple coincident points, remove just the point.
+
+    if (previous) return next ? previous.next = next : delete previous.next, this; // If this is the root point, remove it.
+
+    if (!parent) return this._root = next, this; // Remove this leaf.
+
+    next ? parent[i] = next : delete parent[i]; // If the parent now contains exactly one leaf, collapse superfluous parents.
+
+    if ((node = parent[0] || parent[1] || parent[2] || parent[3]) && node === (parent[3] || parent[2] || parent[1] || parent[0]) && !node.length) {
+      if (retainer) retainer[j] = node;else this._root = node;
+    }
+
+    return this;
+  }
+  function removeAll(data) {
+    for (var i = 0, n = data.length; i < n; ++i) this.remove(data[i]);
+
+    return this;
+  }
+
+  function tree_root () {
+    return this._root;
+  }
+
+  function tree_size () {
+    var size = 0;
+    this.visit(function (node) {
+      if (!node.length) do ++size; while (node = node.next);
+    });
+    return size;
+  }
+
+  function tree_visit (callback) {
+    var quads = [],
+        q,
+        node = this._root,
+        child,
+        x0,
+        y0,
+        x1,
+        y1;
+    if (node) quads.push(new Quad(node, this._x0, this._y0, this._x1, this._y1));
+
+    while (q = quads.pop()) {
+      if (!callback(node = q.node, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1) && node.length) {
+        var xm = (x0 + x1) / 2,
+            ym = (y0 + y1) / 2;
+        if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1));
+        if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1));
+        if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym));
+        if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym));
+      }
+    }
+
+    return this;
+  }
+
+  function tree_visitAfter (callback) {
+    var quads = [],
+        next = [],
+        q;
+    if (this._root) quads.push(new Quad(this._root, this._x0, this._y0, this._x1, this._y1));
+
+    while (q = quads.pop()) {
+      var node = q.node;
+
+      if (node.length) {
+        var child,
+            x0 = q.x0,
+            y0 = q.y0,
+            x1 = q.x1,
+            y1 = q.y1,
+            xm = (x0 + x1) / 2,
+            ym = (y0 + y1) / 2;
+        if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym));
+        if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym));
+        if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1));
+        if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1));
+      }
+
+      next.push(q);
+    }
+
+    while (q = next.pop()) {
+      callback(q.node, q.x0, q.y0, q.x1, q.y1);
+    }
+
+    return this;
+  }
+
+  function defaultX(d) {
+    return d[0];
+  }
+  function tree_x (_) {
+    return arguments.length ? (this._x = _, this) : this._x;
+  }
+
+  function defaultY(d) {
+    return d[1];
+  }
+  function tree_y (_) {
+    return arguments.length ? (this._y = _, this) : this._y;
+  }
+
+  function quadtree(nodes, x, y) {
+    var tree = new Quadtree(x == null ? defaultX : x, y == null ? defaultY : y, NaN, NaN, NaN, NaN);
+    return nodes == null ? tree : tree.addAll(nodes);
+  }
+
+  function Quadtree(x, y, x0, y0, x1, y1) {
+    this._x = x;
+    this._y = y;
+    this._x0 = x0;
+    this._y0 = y0;
+    this._x1 = x1;
+    this._y1 = y1;
+    this._root = undefined;
+  }
+
+  function leaf_copy(leaf) {
+    var copy = {
+      data: leaf.data
+    },
+        next = copy;
+
+    while (leaf = leaf.next) next = next.next = {
+      data: leaf.data
+    };
+
+    return copy;
+  }
+
+  var treeProto = quadtree.prototype = Quadtree.prototype;
+
+  treeProto.copy = function () {
+    var copy = new Quadtree(this._x, this._y, this._x0, this._y0, this._x1, this._y1),
+        node = this._root,
+        nodes,
+        child;
+    if (!node) return copy;
+    if (!node.length) return copy._root = leaf_copy(node), copy;
+    nodes = [{
+      source: node,
+      target: copy._root = new Array(4)
+    }];
+
+    while (node = nodes.pop()) {
+      for (var i = 0; i < 4; ++i) {
+        if (child = node.source[i]) {
+          if (child.length) nodes.push({
+            source: child,
+            target: node.target[i] = new Array(4)
+          });else node.target[i] = leaf_copy(child);
+        }
+      }
+    }
+
+    return copy;
+  };
+
+  treeProto.add = tree_add;
+  treeProto.addAll = addAll;
+  treeProto.cover = tree_cover;
+  treeProto.data = tree_data;
+  treeProto.extent = tree_extent;
+  treeProto.find = tree_find;
+  treeProto.remove = tree_remove;
+  treeProto.removeAll = removeAll;
+  treeProto.root = tree_root;
+  treeProto.size = tree_size;
+  treeProto.visit = tree_visit;
+  treeProto.visitAfter = tree_visitAfter;
+  treeProto.x = tree_x;
+  treeProto.y = tree_y;
+
+  function constant$1 (x) {
+    return function () {
+      return x;
+    };
+  }
+
+  function jiggle (random) {
+    return (random() - 0.5) * 1e-6;
+  }
+
+  function x$1(d) {
+    return d.x + d.vx;
+  }
+
+  function y$1(d) {
+    return d.y + d.vy;
+  }
+
+  function forceCollide (radius) {
+    var nodes,
+        radii,
+        random,
+        strength = 1,
+        iterations = 1;
+    if (typeof radius !== "function") radius = constant$1(radius == null ? 1 : +radius);
+
+    function force() {
+      var i,
+          n = nodes.length,
+          tree,
+          node,
+          xi,
+          yi,
+          ri,
+          ri2;
+
+      for (var k = 0; k < iterations; ++k) {
+        tree = quadtree(nodes, x$1, y$1).visitAfter(prepare);
+
+        for (i = 0; i < n; ++i) {
+          node = nodes[i];
+          ri = radii[node.index], ri2 = ri * ri;
+          xi = node.x + node.vx;
+          yi = node.y + node.vy;
+          tree.visit(apply);
+        }
+      }
+
+      function apply(quad, x0, y0, x1, y1) {
+        var data = quad.data,
+            rj = quad.r,
+            r = ri + rj;
+
+        if (data) {
+          if (data.index > node.index) {
+            var x = xi - data.x - data.vx,
+                y = yi - data.y - data.vy,
+                l = x * x + y * y;
+
+            if (l < r * r) {
+              if (x === 0) x = jiggle(random), l += x * x;
+              if (y === 0) y = jiggle(random), l += y * y;
+              l = (r - (l = Math.sqrt(l))) / l * strength;
+              node.vx += (x *= l) * (r = (rj *= rj) / (ri2 + rj));
+              node.vy += (y *= l) * r;
+              data.vx -= x * (r = 1 - r);
+              data.vy -= y * r;
+            }
+          }
+
+          return;
+        }
+
+        return x0 > xi + r || x1 < xi - r || y0 > yi + r || y1 < yi - r;
+      }
+    }
+
+    function prepare(quad) {
+      if (quad.data) return quad.r = radii[quad.data.index];
+
+      for (var i = quad.r = 0; i < 4; ++i) {
+        if (quad[i] && quad[i].r > quad.r) {
+          quad.r = quad[i].r;
+        }
+      }
+    }
+
+    function initialize() {
+      if (!nodes) return;
+      var i,
+          n = nodes.length,
+          node;
+      radii = new Array(n);
+
+      for (i = 0; i < n; ++i) node = nodes[i], radii[node.index] = +radius(node, i, nodes);
+    }
+
+    force.initialize = function (_nodes, _random) {
+      nodes = _nodes;
+      random = _random;
+      initialize();
+    };
+
+    force.iterations = function (_) {
+      return arguments.length ? (iterations = +_, force) : iterations;
+    };
+
+    force.strength = function (_) {
+      return arguments.length ? (strength = +_, force) : strength;
+    };
+
+    force.radius = function (_) {
+      return arguments.length ? (radius = typeof _ === "function" ? _ : constant$1(+_), initialize(), force) : radius;
+    };
+
+    return force;
+  }
+
+  function index$1(d) {
+    return d.index;
+  }
+
+  function find$1(nodeById, nodeId) {
+    var node = nodeById.get(nodeId);
+    if (!node) throw new Error("node not found: " + nodeId);
+    return node;
+  }
+
+  function forceLink (links) {
+    var id = index$1,
+        strength = defaultStrength,
+        strengths,
+        distance = constant$1(30),
+        distances,
+        nodes,
+        count,
+        bias,
+        random,
+        iterations = 1;
+    if (links == null) links = [];
+
+    function defaultStrength(link) {
+      return 1 / Math.min(count[link.source.index], count[link.target.index]);
+    }
+
+    function force(alpha) {
+      for (var k = 0, n = links.length; k < iterations; ++k) {
+        for (var i = 0, link, source, target, x, y, l, b; i < n; ++i) {
+          link = links[i], source = link.source, target = link.target;
+          x = target.x + target.vx - source.x - source.vx || jiggle(random);
+          y = target.y + target.vy - source.y - source.vy || jiggle(random);
+          l = Math.sqrt(x * x + y * y);
+          l = (l - distances[i]) / l * alpha * strengths[i];
+          x *= l, y *= l;
+          target.vx -= x * (b = bias[i]);
+          target.vy -= y * b;
+          source.vx += x * (b = 1 - b);
+          source.vy += y * b;
+        }
+      }
+    }
+
+    function initialize() {
+      if (!nodes) return;
+      var i,
+          n = nodes.length,
+          m = links.length,
+          nodeById = new Map(nodes.map((d, i) => [id(d, i, nodes), d])),
+          link;
+
+      for (i = 0, count = new Array(n); i < m; ++i) {
+        link = links[i], link.index = i;
+        if (typeof link.source !== "object") link.source = find$1(nodeById, link.source);
+        if (typeof link.target !== "object") link.target = find$1(nodeById, link.target);
+        count[link.source.index] = (count[link.source.index] || 0) + 1;
+        count[link.target.index] = (count[link.target.index] || 0) + 1;
+      }
+
+      for (i = 0, bias = new Array(m); i < m; ++i) {
+        link = links[i], bias[i] = count[link.source.index] / (count[link.source.index] + count[link.target.index]);
+      }
+
+      strengths = new Array(m), initializeStrength();
+      distances = new Array(m), initializeDistance();
+    }
+
+    function initializeStrength() {
+      if (!nodes) return;
+
+      for (var i = 0, n = links.length; i < n; ++i) {
+        strengths[i] = +strength(links[i], i, links);
+      }
+    }
+
+    function initializeDistance() {
+      if (!nodes) return;
+
+      for (var i = 0, n = links.length; i < n; ++i) {
+        distances[i] = +distance(links[i], i, links);
+      }
+    }
+
+    force.initialize = function (_nodes, _random) {
+      nodes = _nodes;
+      random = _random;
+      initialize();
+    };
+
+    force.links = function (_) {
+      return arguments.length ? (links = _, initialize(), force) : links;
+    };
+
+    force.id = function (_) {
+      return arguments.length ? (id = _, force) : id;
+    };
+
+    force.iterations = function (_) {
+      return arguments.length ? (iterations = +_, force) : iterations;
+    };
+
+    force.strength = function (_) {
+      return arguments.length ? (strength = typeof _ === "function" ? _ : constant$1(+_), initializeStrength(), force) : strength;
+    };
+
+    force.distance = function (_) {
+      return arguments.length ? (distance = typeof _ === "function" ? _ : constant$1(+_), initializeDistance(), force) : distance;
+    };
+
+    return force;
+  }
+
+  var noop = {
+    value: () => {}
+  };
+
+  function dispatch() {
+    for (var i = 0, n = arguments.length, _ = {}, t; i < n; ++i) {
+      if (!(t = arguments[i] + "") || t in _ || /[\s.]/.test(t)) throw new Error("illegal type: " + t);
+      _[t] = [];
+    }
+
+    return new Dispatch(_);
+  }
+
+  function Dispatch(_) {
+    this._ = _;
+  }
+
+  function parseTypenames(typenames, types) {
+    return typenames.trim().split(/^|\s+/).map(function (t) {
+      var name = "",
+          i = t.indexOf(".");
+      if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
+      if (t && !types.hasOwnProperty(t)) throw new Error("unknown type: " + t);
+      return {
+        type: t,
+        name: name
+      };
+    });
+  }
+
+  Dispatch.prototype = dispatch.prototype = {
+    constructor: Dispatch,
+    on: function (typename, callback) {
+      var _ = this._,
+          T = parseTypenames(typename + "", _),
+          t,
+          i = -1,
+          n = T.length; // If no callback was specified, return the callback of the given type and name.
+
+      if (arguments.length < 2) {
+        while (++i < n) if ((t = (typename = T[i]).type) && (t = get(_[t], typename.name))) return t;
+
+        return;
+      } // If a type was specified, set the callback for the given type and name.
+      // Otherwise, if a null callback was specified, remove callbacks of the given name.
+
+
+      if (callback != null && typeof callback !== "function") throw new Error("invalid callback: " + callback);
+
+      while (++i < n) {
+        if (t = (typename = T[i]).type) _[t] = set(_[t], typename.name, callback);else if (callback == null) for (t in _) _[t] = set(_[t], typename.name, null);
+      }
+
+      return this;
+    },
+    copy: function () {
+      var copy = {},
+          _ = this._;
+
+      for (var t in _) copy[t] = _[t].slice();
+
+      return new Dispatch(copy);
+    },
+    call: function (type, that) {
+      if ((n = arguments.length - 2) > 0) for (var args = new Array(n), i = 0, n, t; i < n; ++i) args[i] = arguments[i + 2];
+      if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);
+
+      for (t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);
+    },
+    apply: function (type, that, args) {
+      if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);
+
+      for (var t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);
+    }
+  };
+
+  function get(type, name) {
+    for (var i = 0, n = type.length, c; i < n; ++i) {
+      if ((c = type[i]).name === name) {
+        return c.value;
+      }
+    }
+  }
+
+  function set(type, name, callback) {
+    for (var i = 0, n = type.length; i < n; ++i) {
+      if (type[i].name === name) {
+        type[i] = noop, type = type.slice(0, i).concat(type.slice(i + 1));
+        break;
+      }
+    }
+
+    if (callback != null) type.push({
+      name: name,
+      value: callback
+    });
+    return type;
+  }
+
+  var frame = 0,
+      // is an animation frame pending?
+  timeout = 0,
+      // is a timeout pending?
+  interval$1 = 0,
+      // are any timers active?
+  pokeDelay = 1000,
+      // how frequently we check for clock skew
+  taskHead,
+      taskTail,
+      clockLast = 0,
+      clockNow = 0,
+      clockSkew = 0,
+      clock = typeof performance === "object" && performance.now ? performance : Date,
+      setFrame = typeof window === "object" && window.requestAnimationFrame ? window.requestAnimationFrame.bind(window) : function (f) {
+    setTimeout(f, 17);
+  };
+  function now() {
+    return clockNow || (setFrame(clearNow), clockNow = clock.now() + clockSkew);
+  }
+
+  function clearNow() {
+    clockNow = 0;
+  }
+
+  function Timer$1() {
+    this._call = this._time = this._next = null;
+  }
+  Timer$1.prototype = timer$1.prototype = {
+    constructor: Timer$1,
+    restart: function (callback, delay, time) {
+      if (typeof callback !== "function") throw new TypeError("callback is not a function");
+      time = (time == null ? now() : +time) + (delay == null ? 0 : +delay);
+
+      if (!this._next && taskTail !== this) {
+        if (taskTail) taskTail._next = this;else taskHead = this;
+        taskTail = this;
+      }
+
+      this._call = callback;
+      this._time = time;
+      sleep();
+    },
+    stop: function () {
+      if (this._call) {
+        this._call = null;
+        this._time = Infinity;
+        sleep();
+      }
+    }
+  };
+  function timer$1(callback, delay, time) {
+    var t = new Timer$1();
+    t.restart(callback, delay, time);
+    return t;
+  }
+  function timerFlush() {
+    now(); // Get the current time, if not already set.
+
+    ++frame; // Pretend we’ve set an alarm, if we haven’t already.
+
+    var t = taskHead,
+        e;
+
+    while (t) {
+      if ((e = clockNow - t._time) >= 0) t._call.call(null, e);
+      t = t._next;
+    }
+
+    --frame;
+  }
+
+  function wake() {
+    clockNow = (clockLast = clock.now()) + clockSkew;
+    frame = timeout = 0;
+
+    try {
+      timerFlush();
+    } finally {
+      frame = 0;
+      nap();
+      clockNow = 0;
+    }
+  }
+
+  function poke() {
+    var now = clock.now(),
+        delay = now - clockLast;
+    if (delay > pokeDelay) clockSkew -= delay, clockLast = now;
+  }
+
+  function nap() {
+    var t0,
+        t1 = taskHead,
+        t2,
+        time = Infinity;
+
+    while (t1) {
+      if (t1._call) {
+        if (time > t1._time) time = t1._time;
+        t0 = t1, t1 = t1._next;
+      } else {
+        t2 = t1._next, t1._next = null;
+        t1 = t0 ? t0._next = t2 : taskHead = t2;
+      }
+    }
+
+    taskTail = t0;
+    sleep(time);
+  }
+
+  function sleep(time) {
+    if (frame) return; // Soonest alarm already set, or will be.
+
+    if (timeout) timeout = clearTimeout(timeout);
+    var delay = time - clockNow; // Strictly less than if we recomputed clockNow.
+
+    if (delay > 24) {
+      if (time < Infinity) timeout = setTimeout(wake, time - clock.now() - clockSkew);
+      if (interval$1) interval$1 = clearInterval(interval$1);
+    } else {
+      if (!interval$1) clockLast = clock.now(), interval$1 = setInterval(poke, pokeDelay);
+      frame = 1, setFrame(wake);
+    }
+  }
+
+  function interval (callback, delay, time) {
+    var t = new Timer$1(),
+        total = delay;
+    if (delay == null) return t.restart(callback, delay, time), t;
+    t._restart = t.restart;
+
+    t.restart = function (callback, delay, time) {
+      delay = +delay, time = time == null ? now() : +time;
+
+      t._restart(function tick(elapsed) {
+        elapsed += total;
+
+        t._restart(tick, total += delay, time);
+
+        callback(elapsed);
+      }, delay, time);
+    };
+
+    t.restart(callback, delay, time);
+    return t;
+  }
+
+  // https://en.wikipedia.org/wiki/Linear_congruential_generator#Parameters_in_common_use
+  const a = 1664525;
+  const c = 1013904223;
+  const m = 4294967296; // 2^32
+
+  function lcg () {
+    let s = 1;
+    return () => (s = (a * s + c) % m) / m;
+  }
+
+  function x(d) {
+    return d.x;
+  }
+  function y(d) {
+    return d.y;
+  }
+  var initialRadius = 10,
+      initialAngle = Math.PI * (3 - Math.sqrt(5));
+  function forceSimulation (nodes) {
+    var simulation,
+        alpha = 1,
+        alphaMin = 0.001,
+        alphaDecay = 1 - Math.pow(alphaMin, 1 / 300),
+        alphaTarget = 0,
+        velocityDecay = 0.6,
+        forces = new Map(),
+        stepper = timer$1(step),
+        event = dispatch("tick", "end"),
+        random = lcg();
+    if (nodes == null) nodes = [];
+
+    function step() {
+      tick();
+      event.call("tick", simulation);
+
+      if (alpha < alphaMin) {
+        stepper.stop();
+        event.call("end", simulation);
+      }
+    }
+
+    function tick(iterations) {
+      var i,
+          n = nodes.length,
+          node;
+      if (iterations === undefined) iterations = 1;
+
+      for (var k = 0; k < iterations; ++k) {
+        alpha += (alphaTarget - alpha) * alphaDecay;
+        forces.forEach(function (force) {
+          force(alpha);
+        });
+
+        for (i = 0; i < n; ++i) {
+          node = nodes[i];
+          if (node.fx == null) node.x += node.vx *= velocityDecay;else node.x = node.fx, node.vx = 0;
+          if (node.fy == null) node.y += node.vy *= velocityDecay;else node.y = node.fy, node.vy = 0;
+        }
+      }
+
+      return simulation;
+    }
+
+    function initializeNodes() {
+      for (var i = 0, n = nodes.length, node; i < n; ++i) {
+        node = nodes[i], node.index = i;
+        if (node.fx != null) node.x = node.fx;
+        if (node.fy != null) node.y = node.fy;
+
+        if (isNaN(node.x) || isNaN(node.y)) {
+          var radius = initialRadius * Math.sqrt(0.5 + i),
+              angle = i * initialAngle;
+          node.x = radius * Math.cos(angle);
+          node.y = radius * Math.sin(angle);
+        }
+
+        if (isNaN(node.vx) || isNaN(node.vy)) {
+          node.vx = node.vy = 0;
+        }
+      }
+    }
+
+    function initializeForce(force) {
+      if (force.initialize) force.initialize(nodes, random);
+      return force;
+    }
+
+    initializeNodes();
+    return simulation = {
+      tick: tick,
+      restart: function () {
+        return stepper.restart(step), simulation;
+      },
+      stop: function () {
+        return stepper.stop(), simulation;
+      },
+      nodes: function (_) {
+        return arguments.length ? (nodes = _, initializeNodes(), forces.forEach(initializeForce), simulation) : nodes;
+      },
+      alpha: function (_) {
+        return arguments.length ? (alpha = +_, simulation) : alpha;
+      },
+      alphaMin: function (_) {
+        return arguments.length ? (alphaMin = +_, simulation) : alphaMin;
+      },
+      alphaDecay: function (_) {
+        return arguments.length ? (alphaDecay = +_, simulation) : +alphaDecay;
+      },
+      alphaTarget: function (_) {
+        return arguments.length ? (alphaTarget = +_, simulation) : alphaTarget;
+      },
+      velocityDecay: function (_) {
+        return arguments.length ? (velocityDecay = 1 - _, simulation) : 1 - velocityDecay;
+      },
+      randomSource: function (_) {
+        return arguments.length ? (random = _, forces.forEach(initializeForce), simulation) : random;
+      },
+      force: function (name, _) {
+        return arguments.length > 1 ? (_ == null ? forces.delete(name) : forces.set(name, initializeForce(_)), simulation) : forces.get(name);
+      },
+      find: function (x, y, radius) {
+        var i = 0,
+            n = nodes.length,
+            dx,
+            dy,
+            d2,
+            node,
+            closest;
+        if (radius == null) radius = Infinity;else radius *= radius;
+
+        for (i = 0; i < n; ++i) {
+          node = nodes[i];
+          dx = x - node.x;
+          dy = y - node.y;
+          d2 = dx * dx + dy * dy;
+          if (d2 < radius) closest = node, radius = d2;
+        }
+
+        return closest;
+      },
+      on: function (name, _) {
+        return arguments.length > 1 ? (event.on(name, _), simulation) : event.on(name);
+      }
+    };
+  }
+
+  function forceManyBody () {
+    var nodes,
+        node,
+        random,
+        alpha,
+        strength = constant$1(-30),
+        strengths,
+        distanceMin2 = 1,
+        distanceMax2 = Infinity,
+        theta2 = 0.81;
+
+    function force(_) {
+      var i,
+          n = nodes.length,
+          tree = quadtree(nodes, x, y).visitAfter(accumulate);
+
+      for (alpha = _, i = 0; i < n; ++i) node = nodes[i], tree.visit(apply);
+    }
+
+    function initialize() {
+      if (!nodes) return;
+      var i,
+          n = nodes.length,
+          node;
+      strengths = new Array(n);
+
+      for (i = 0; i < n; ++i) node = nodes[i], strengths[node.index] = +strength(node, i, nodes);
+    }
+
+    function accumulate(quad) {
+      var strength = 0,
+          q,
+          c,
+          weight = 0,
+          x,
+          y,
+          i; // For internal nodes, accumulate forces from child quadrants.
+
+      if (quad.length) {
+        for (x = y = i = 0; i < 4; ++i) {
+          if ((q = quad[i]) && (c = Math.abs(q.value))) {
+            strength += q.value, weight += c, x += c * q.x, y += c * q.y;
+          }
+        }
+
+        quad.x = x / weight;
+        quad.y = y / weight;
+      } // For leaf nodes, accumulate forces from coincident quadrants.
+      else {
+        q = quad;
+        q.x = q.data.x;
+        q.y = q.data.y;
+
+        do strength += strengths[q.data.index]; while (q = q.next);
+      }
+
+      quad.value = strength;
+    }
+
+    function apply(quad, x1, _, x2) {
+      if (!quad.value) return true;
+      var x = quad.x - node.x,
+          y = quad.y - node.y,
+          w = x2 - x1,
+          l = x * x + y * y; // Apply the Barnes-Hut approximation if possible.
+      // Limit forces for very close nodes; randomize direction if coincident.
+
+      if (w * w / theta2 < l) {
+        if (l < distanceMax2) {
+          if (x === 0) x = jiggle(random), l += x * x;
+          if (y === 0) y = jiggle(random), l += y * y;
+          if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l);
+          node.vx += x * quad.value * alpha / l;
+          node.vy += y * quad.value * alpha / l;
+        }
+
+        return true;
+      } // Otherwise, process points directly.
+      else if (quad.length || l >= distanceMax2) return; // Limit forces for very close nodes; randomize direction if coincident.
+
+
+      if (quad.data !== node || quad.next) {
+        if (x === 0) x = jiggle(random), l += x * x;
+        if (y === 0) y = jiggle(random), l += y * y;
+        if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l);
+      }
+
+      do if (quad.data !== node) {
+        w = strengths[quad.data.index] * alpha / l;
+        node.vx += x * w;
+        node.vy += y * w;
+      } while (quad = quad.next);
+    }
+
+    force.initialize = function (_nodes, _random) {
+      nodes = _nodes;
+      random = _random;
+      initialize();
+    };
+
+    force.strength = function (_) {
+      return arguments.length ? (strength = typeof _ === "function" ? _ : constant$1(+_), initialize(), force) : strength;
+    };
+
+    force.distanceMin = function (_) {
+      return arguments.length ? (distanceMin2 = _ * _, force) : Math.sqrt(distanceMin2);
+    };
+
+    force.distanceMax = function (_) {
+      return arguments.length ? (distanceMax2 = _ * _, force) : Math.sqrt(distanceMax2);
+    };
+
+    force.theta = function (_) {
+      return arguments.length ? (theta2 = _ * _, force) : Math.sqrt(theta2);
+    };
+
+    return force;
+  }
+
+  function forceX (x) {
+    var strength = constant$1(0.1),
+        nodes,
+        strengths,
+        xz;
+    if (typeof x !== "function") x = constant$1(x == null ? 0 : +x);
+
+    function force(alpha) {
+      for (var i = 0, n = nodes.length, node; i < n; ++i) {
+        node = nodes[i], node.vx += (xz[i] - node.x) * strengths[i] * alpha;
+      }
+    }
+
+    function initialize() {
+      if (!nodes) return;
+      var i,
+          n = nodes.length;
+      strengths = new Array(n);
+      xz = new Array(n);
+
+      for (i = 0; i < n; ++i) {
+        strengths[i] = isNaN(xz[i] = +x(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes);
+      }
+    }
+
+    force.initialize = function (_) {
+      nodes = _;
+      initialize();
+    };
+
+    force.strength = function (_) {
+      return arguments.length ? (strength = typeof _ === "function" ? _ : constant$1(+_), initialize(), force) : strength;
+    };
+
+    force.x = function (_) {
+      return arguments.length ? (x = typeof _ === "function" ? _ : constant$1(+_), initialize(), force) : x;
+    };
+
+    return force;
+  }
+
+  function forceY (y) {
+    var strength = constant$1(0.1),
+        nodes,
+        strengths,
+        yz;
+    if (typeof y !== "function") y = constant$1(y == null ? 0 : +y);
+
+    function force(alpha) {
+      for (var i = 0, n = nodes.length, node; i < n; ++i) {
+        node = nodes[i], node.vy += (yz[i] - node.y) * strengths[i] * alpha;
+      }
+    }
+
+    function initialize() {
+      if (!nodes) return;
+      var i,
+          n = nodes.length;
+      strengths = new Array(n);
+      yz = new Array(n);
+
+      for (i = 0; i < n; ++i) {
+        strengths[i] = isNaN(yz[i] = +y(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes);
+      }
+    }
+
+    force.initialize = function (_) {
+      nodes = _;
+      initialize();
+    };
+
+    force.strength = function (_) {
+      return arguments.length ? (strength = typeof _ === "function" ? _ : constant$1(+_), initialize(), force) : strength;
+    };
+
+    force.y = function (_) {
+      return arguments.length ? (y = typeof _ === "function" ? _ : constant$1(+_), initialize(), force) : y;
+    };
+
+    return force;
+  }
+
+  const ForceMap = {
+    center: forceCenter,
+    collide: forceCollide,
+    nbody: forceManyBody,
+    link: forceLink,
+    x: forceX,
+    y: forceY
+  };
+  const Forces = 'forces',
+        ForceParams = ['alpha', 'alphaMin', 'alphaTarget', 'velocityDecay', 'forces'],
+        ForceConfig = ['static', 'iterations'],
+        ForceOutput = ['x', 'y', 'vx', 'vy'];
+  /**
+   * Force simulation layout.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<object>} params.forces - The forces to apply.
+   */
+
+  function Force(params) {
+    Transform.call(this, null, params);
+  }
+
+  Force.Definition = {
+    'type': 'Force',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'static',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'restart',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'iterations',
+      'type': 'number',
+      'default': 300
+    }, {
+      'name': 'alpha',
+      'type': 'number',
+      'default': 1
+    }, {
+      'name': 'alphaMin',
+      'type': 'number',
+      'default': 0.001
+    }, {
+      'name': 'alphaTarget',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'velocityDecay',
+      'type': 'number',
+      'default': 0.4
+    }, {
+      'name': 'forces',
+      'type': 'param',
+      'array': true,
+      'params': [{
+        'key': {
+          'force': 'center'
+        },
+        'params': [{
+          'name': 'x',
+          'type': 'number',
+          'default': 0
+        }, {
+          'name': 'y',
+          'type': 'number',
+          'default': 0
+        }]
+      }, {
+        'key': {
+          'force': 'collide'
+        },
+        'params': [{
+          'name': 'radius',
+          'type': 'number',
+          'expr': true
+        }, {
+          'name': 'strength',
+          'type': 'number',
+          'default': 0.7
+        }, {
+          'name': 'iterations',
+          'type': 'number',
+          'default': 1
+        }]
+      }, {
+        'key': {
+          'force': 'nbody'
+        },
+        'params': [{
+          'name': 'strength',
+          'type': 'number',
+          'default': -30
+        }, {
+          'name': 'theta',
+          'type': 'number',
+          'default': 0.9
+        }, {
+          'name': 'distanceMin',
+          'type': 'number',
+          'default': 1
+        }, {
+          'name': 'distanceMax',
+          'type': 'number'
+        }]
+      }, {
+        'key': {
+          'force': 'link'
+        },
+        'params': [{
+          'name': 'links',
+          'type': 'data'
+        }, {
+          'name': 'id',
+          'type': 'field'
+        }, {
+          'name': 'distance',
+          'type': 'number',
+          'default': 30,
+          'expr': true
+        }, {
+          'name': 'strength',
+          'type': 'number',
+          'expr': true
+        }, {
+          'name': 'iterations',
+          'type': 'number',
+          'default': 1
+        }]
+      }, {
+        'key': {
+          'force': 'x'
+        },
+        'params': [{
+          'name': 'strength',
+          'type': 'number',
+          'default': 0.1
+        }, {
+          'name': 'x',
+          'type': 'field'
+        }]
+      }, {
+        'key': {
+          'force': 'y'
+        },
+        'params': [{
+          'name': 'strength',
+          'type': 'number',
+          'default': 0.1
+        }, {
+          'name': 'y',
+          'type': 'field'
+        }]
+      }]
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'modify': false,
+      'default': ForceOutput
+    }]
+  };
+  inherits(Force, Transform, {
+    transform(_, pulse) {
+      var sim = this.value,
+          change = pulse.changed(pulse.ADD_REM),
+          params = _.modified(ForceParams),
+          iters = _.iterations || 300; // configure simulation
+
+
+      if (!sim) {
+        this.value = sim = simulation(pulse.source, _);
+        sim.on('tick', rerun(pulse.dataflow, this));
+
+        if (!_.static) {
+          change = true;
+          sim.tick(); // ensure we run on init
+        }
+
+        pulse.modifies('index');
+      } else {
+        if (change) {
+          pulse.modifies('index');
+          sim.nodes(pulse.source);
+        }
+
+        if (params || pulse.changed(pulse.MOD)) {
+          setup(sim, _, 0, pulse);
+        }
+      } // run simulation
+
+
+      if (params || change || _.modified(ForceConfig) || pulse.changed() && _.restart) {
+        sim.alpha(Math.max(sim.alpha(), _.alpha || 1)).alphaDecay(1 - Math.pow(sim.alphaMin(), 1 / iters));
+
+        if (_.static) {
+          for (sim.stop(); --iters >= 0;) sim.tick();
+        } else {
+          if (sim.stopped()) sim.restart();
+          if (!change) return pulse.StopPropagation; // defer to sim ticks
+        }
+      }
+
+      return this.finish(_, pulse);
+    },
+
+    finish(_, pulse) {
+      const dataflow = pulse.dataflow; // inspect dependencies, touch link source data
+
+      for (let args = this._argops, j = 0, m = args.length, arg; j < m; ++j) {
+        arg = args[j];
+
+        if (arg.name !== Forces || arg.op._argval.force !== 'link') {
+          continue;
+        }
+
+        for (var ops = arg.op._argops, i = 0, n = ops.length, op; i < n; ++i) {
+          if (ops[i].name === 'links' && (op = ops[i].op.source)) {
+            dataflow.pulse(op, dataflow.changeset().reflow());
+            break;
+          }
+        }
+      } // reflow all nodes
+
+
+      return pulse.reflow(_.modified()).modifies(ForceOutput);
+    }
+
+  });
+
+  function rerun(df, op) {
+    return () => df.touch(op).run();
+  }
+
+  function simulation(nodes, _) {
+    const sim = forceSimulation(nodes),
+          stop = sim.stop,
+          restart = sim.restart;
+    let stopped = false;
+
+    sim.stopped = () => stopped;
+
+    sim.restart = () => (stopped = false, restart());
+
+    sim.stop = () => (stopped = true, stop());
+
+    return setup(sim, _, true).on('end', () => stopped = true);
+  }
+
+  function setup(sim, _, init, pulse) {
+    var f = array$5(_.forces),
+        i,
+        n,
+        p,
+        name;
+
+    for (i = 0, n = ForceParams.length; i < n; ++i) {
+      p = ForceParams[i];
+      if (p !== Forces && _.modified(p)) sim[p](_[p]);
+    }
+
+    for (i = 0, n = f.length; i < n; ++i) {
+      name = Forces + i;
+      p = init || _.modified(Forces, i) ? getForce(f[i]) : pulse && modified(f[i], pulse) ? sim.force(name) : null;
+      if (p) sim.force(name, p);
+    }
+
+    for (n = sim.numForces || 0; i < n; ++i) {
+      sim.force(Forces + i, null); // remove
+    }
+
+    sim.numForces = f.length;
+    return sim;
+  }
+
+  function modified(f, pulse) {
+    var k, v;
+
+    for (k in f) {
+      if (isFunction(v = f[k]) && pulse.modified(accessorFields(v))) return 1;
+    }
+
+    return 0;
+  }
+
+  function getForce(_) {
+    var f, p;
+
+    if (!has$1(ForceMap, _.force)) {
+      error('Unrecognized force: ' + _.force);
+    }
+
+    f = ForceMap[_.force]();
+
+    for (p in _) {
+      if (isFunction(f[p])) setForceParam(f[p], _[p], _);
+    }
+
+    return f;
+  }
+
+  function setForceParam(f, v, _) {
+    f(isFunction(v) ? d => v(d, _) : v);
+  }
+
+  var force = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    force: Force
+  });
+
+  function defaultSeparation$2(a, b) {
+    return a.parent === b.parent ? 1 : 2;
+  }
+
+  function meanX(children) {
+    return children.reduce(meanXReduce, 0) / children.length;
+  }
+
+  function meanXReduce(x, c) {
+    return x + c.x;
+  }
+
+  function maxY(children) {
+    return 1 + children.reduce(maxYReduce, 0);
+  }
+
+  function maxYReduce(y, c) {
+    return Math.max(y, c.y);
+  }
+
+  function leafLeft(node) {
+    var children;
+
+    while (children = node.children) node = children[0];
+
+    return node;
+  }
+
+  function leafRight(node) {
+    var children;
+
+    while (children = node.children) node = children[children.length - 1];
+
+    return node;
+  }
+
+  function cluster () {
+    var separation = defaultSeparation$2,
+        dx = 1,
+        dy = 1,
+        nodeSize = false;
+
+    function cluster(root) {
+      var previousNode,
+          x = 0; // First walk, computing the initial x & y values.
+
+      root.eachAfter(function (node) {
+        var children = node.children;
+
+        if (children) {
+          node.x = meanX(children);
+          node.y = maxY(children);
+        } else {
+          node.x = previousNode ? x += separation(node, previousNode) : 0;
+          node.y = 0;
+          previousNode = node;
+        }
+      });
+      var left = leafLeft(root),
+          right = leafRight(root),
+          x0 = left.x - separation(left, right) / 2,
+          x1 = right.x + separation(right, left) / 2; // Second walk, normalizing x & y to the desired size.
+
+      return root.eachAfter(nodeSize ? function (node) {
+        node.x = (node.x - root.x) * dx;
+        node.y = (root.y - node.y) * dy;
+      } : function (node) {
+        node.x = (node.x - x0) / (x1 - x0) * dx;
+        node.y = (1 - (root.y ? node.y / root.y : 1)) * dy;
+      });
+    }
+
+    cluster.separation = function (x) {
+      return arguments.length ? (separation = x, cluster) : separation;
+    };
+
+    cluster.size = function (x) {
+      return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], cluster) : nodeSize ? null : [dx, dy];
+    };
+
+    cluster.nodeSize = function (x) {
+      return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], cluster) : nodeSize ? [dx, dy] : null;
+    };
+
+    return cluster;
+  }
+
+  function count(node) {
+    var sum = 0,
+        children = node.children,
+        i = children && children.length;
+    if (!i) sum = 1;else while (--i >= 0) sum += children[i].value;
+    node.value = sum;
+  }
+
+  function node_count () {
+    return this.eachAfter(count);
+  }
+
+  function node_each (callback, that) {
+    let index = -1;
+
+    for (const node of this) {
+      callback.call(that, node, ++index, this);
+    }
+
+    return this;
+  }
+
+  function node_eachBefore (callback, that) {
+    var node = this,
+        nodes = [node],
+        children,
+        i,
+        index = -1;
+
+    while (node = nodes.pop()) {
+      callback.call(that, node, ++index, this);
+
+      if (children = node.children) {
+        for (i = children.length - 1; i >= 0; --i) {
+          nodes.push(children[i]);
+        }
+      }
+    }
+
+    return this;
+  }
+
+  function node_eachAfter (callback, that) {
+    var node = this,
+        nodes = [node],
+        next = [],
+        children,
+        i,
+        n,
+        index = -1;
+
+    while (node = nodes.pop()) {
+      next.push(node);
+
+      if (children = node.children) {
+        for (i = 0, n = children.length; i < n; ++i) {
+          nodes.push(children[i]);
+        }
+      }
+    }
+
+    while (node = next.pop()) {
+      callback.call(that, node, ++index, this);
+    }
+
+    return this;
+  }
+
+  function node_find (callback, that) {
+    let index = -1;
+
+    for (const node of this) {
+      if (callback.call(that, node, ++index, this)) {
+        return node;
+      }
+    }
+  }
+
+  function node_sum (value) {
+    return this.eachAfter(function (node) {
+      var sum = +value(node.data) || 0,
+          children = node.children,
+          i = children && children.length;
+
+      while (--i >= 0) sum += children[i].value;
+
+      node.value = sum;
+    });
+  }
+
+  function node_sort (compare) {
+    return this.eachBefore(function (node) {
+      if (node.children) {
+        node.children.sort(compare);
+      }
+    });
+  }
+
+  function node_path (end) {
+    var start = this,
+        ancestor = leastCommonAncestor(start, end),
+        nodes = [start];
+
+    while (start !== ancestor) {
+      start = start.parent;
+      nodes.push(start);
+    }
+
+    var k = nodes.length;
+
+    while (end !== ancestor) {
+      nodes.splice(k, 0, end);
+      end = end.parent;
+    }
+
+    return nodes;
+  }
+
+  function leastCommonAncestor(a, b) {
+    if (a === b) return a;
+    var aNodes = a.ancestors(),
+        bNodes = b.ancestors(),
+        c = null;
+    a = aNodes.pop();
+    b = bNodes.pop();
+
+    while (a === b) {
+      c = a;
+      a = aNodes.pop();
+      b = bNodes.pop();
+    }
+
+    return c;
+  }
+
+  function node_ancestors () {
+    var node = this,
+        nodes = [node];
+
+    while (node = node.parent) {
+      nodes.push(node);
+    }
+
+    return nodes;
+  }
+
+  function node_descendants () {
+    return Array.from(this);
+  }
+
+  function node_leaves () {
+    var leaves = [];
+    this.eachBefore(function (node) {
+      if (!node.children) {
+        leaves.push(node);
+      }
+    });
+    return leaves;
+  }
+
+  function node_links () {
+    var root = this,
+        links = [];
+    root.each(function (node) {
+      if (node !== root) {
+        // Don’t include the root’s parent, if any.
+        links.push({
+          source: node.parent,
+          target: node
+        });
+      }
+    });
+    return links;
+  }
+
+  function* node_iterator () {
+    var node = this,
+        current,
+        next = [node],
+        children,
+        i,
+        n;
+
+    do {
+      current = next.reverse(), next = [];
+
+      while (node = current.pop()) {
+        yield node;
+
+        if (children = node.children) {
+          for (i = 0, n = children.length; i < n; ++i) {
+            next.push(children[i]);
+          }
+        }
+      }
+    } while (next.length);
+  }
+
+  function hierarchy(data, children) {
+    if (data instanceof Map) {
+      data = [undefined, data];
+      if (children === undefined) children = mapChildren;
+    } else if (children === undefined) {
+      children = objectChildren;
+    }
+
+    var root = new Node$1(data),
+        node,
+        nodes = [root],
+        child,
+        childs,
+        i,
+        n;
+
+    while (node = nodes.pop()) {
+      if ((childs = children(node.data)) && (n = (childs = Array.from(childs)).length)) {
+        node.children = childs;
+
+        for (i = n - 1; i >= 0; --i) {
+          nodes.push(child = childs[i] = new Node$1(childs[i]));
+          child.parent = node;
+          child.depth = node.depth + 1;
+        }
+      }
+    }
+
+    return root.eachBefore(computeHeight);
+  }
+
+  function node_copy() {
+    return hierarchy(this).eachBefore(copyData);
+  }
+
+  function objectChildren(d) {
+    return d.children;
+  }
+
+  function mapChildren(d) {
+    return Array.isArray(d) ? d[1] : null;
+  }
+
+  function copyData(node) {
+    if (node.data.value !== undefined) node.value = node.data.value;
+    node.data = node.data.data;
+  }
+
+  function computeHeight(node) {
+    var height = 0;
+
+    do node.height = height; while ((node = node.parent) && node.height < ++height);
+  }
+  function Node$1(data) {
+    this.data = data;
+    this.depth = this.height = 0;
+    this.parent = null;
+  }
+  Node$1.prototype = hierarchy.prototype = {
+    constructor: Node$1,
+    count: node_count,
+    each: node_each,
+    eachAfter: node_eachAfter,
+    eachBefore: node_eachBefore,
+    find: node_find,
+    sum: node_sum,
+    sort: node_sort,
+    path: node_path,
+    ancestors: node_ancestors,
+    descendants: node_descendants,
+    leaves: node_leaves,
+    links: node_links,
+    copy: node_copy,
+    [Symbol.iterator]: node_iterator
+  };
+
+  function array$2 (x) {
+    return typeof x === "object" && "length" in x ? x // Array, TypedArray, NodeList, array-like
+    : Array.from(x); // Map, Set, iterable, string, or anything else
+  }
+  function shuffle(array) {
+    var m = array.length,
+        t,
+        i;
+
+    while (m) {
+      i = Math.random() * m-- | 0;
+      t = array[m];
+      array[m] = array[i];
+      array[i] = t;
+    }
+
+    return array;
+  }
+
+  function enclose (circles) {
+    var i = 0,
+        n = (circles = shuffle(Array.from(circles))).length,
+        B = [],
+        p,
+        e;
+
+    while (i < n) {
+      p = circles[i];
+      if (e && enclosesWeak(e, p)) ++i;else e = encloseBasis(B = extendBasis(B, p)), i = 0;
+    }
+
+    return e;
+  }
+
+  function extendBasis(B, p) {
+    var i, j;
+    if (enclosesWeakAll(p, B)) return [p]; // If we get here then B must have at least one element.
+
+    for (i = 0; i < B.length; ++i) {
+      if (enclosesNot(p, B[i]) && enclosesWeakAll(encloseBasis2(B[i], p), B)) {
+        return [B[i], p];
+      }
+    } // If we get here then B must have at least two elements.
+
+
+    for (i = 0; i < B.length - 1; ++i) {
+      for (j = i + 1; j < B.length; ++j) {
+        if (enclosesNot(encloseBasis2(B[i], B[j]), p) && enclosesNot(encloseBasis2(B[i], p), B[j]) && enclosesNot(encloseBasis2(B[j], p), B[i]) && enclosesWeakAll(encloseBasis3(B[i], B[j], p), B)) {
+          return [B[i], B[j], p];
+        }
+      }
+    } // If we get here then something is very wrong.
+
+
+    throw new Error();
+  }
+
+  function enclosesNot(a, b) {
+    var dr = a.r - b.r,
+        dx = b.x - a.x,
+        dy = b.y - a.y;
+    return dr < 0 || dr * dr < dx * dx + dy * dy;
+  }
+
+  function enclosesWeak(a, b) {
+    var dr = a.r - b.r + Math.max(a.r, b.r, 1) * 1e-9,
+        dx = b.x - a.x,
+        dy = b.y - a.y;
+    return dr > 0 && dr * dr > dx * dx + dy * dy;
+  }
+
+  function enclosesWeakAll(a, B) {
+    for (var i = 0; i < B.length; ++i) {
+      if (!enclosesWeak(a, B[i])) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  function encloseBasis(B) {
+    switch (B.length) {
+      case 1:
+        return encloseBasis1(B[0]);
+
+      case 2:
+        return encloseBasis2(B[0], B[1]);
+
+      case 3:
+        return encloseBasis3(B[0], B[1], B[2]);
+    }
+  }
+
+  function encloseBasis1(a) {
+    return {
+      x: a.x,
+      y: a.y,
+      r: a.r
+    };
+  }
+
+  function encloseBasis2(a, b) {
+    var x1 = a.x,
+        y1 = a.y,
+        r1 = a.r,
+        x2 = b.x,
+        y2 = b.y,
+        r2 = b.r,
+        x21 = x2 - x1,
+        y21 = y2 - y1,
+        r21 = r2 - r1,
+        l = Math.sqrt(x21 * x21 + y21 * y21);
+    return {
+      x: (x1 + x2 + x21 / l * r21) / 2,
+      y: (y1 + y2 + y21 / l * r21) / 2,
+      r: (l + r1 + r2) / 2
+    };
+  }
+
+  function encloseBasis3(a, b, c) {
+    var x1 = a.x,
+        y1 = a.y,
+        r1 = a.r,
+        x2 = b.x,
+        y2 = b.y,
+        r2 = b.r,
+        x3 = c.x,
+        y3 = c.y,
+        r3 = c.r,
+        a2 = x1 - x2,
+        a3 = x1 - x3,
+        b2 = y1 - y2,
+        b3 = y1 - y3,
+        c2 = r2 - r1,
+        c3 = r3 - r1,
+        d1 = x1 * x1 + y1 * y1 - r1 * r1,
+        d2 = d1 - x2 * x2 - y2 * y2 + r2 * r2,
+        d3 = d1 - x3 * x3 - y3 * y3 + r3 * r3,
+        ab = a3 * b2 - a2 * b3,
+        xa = (b2 * d3 - b3 * d2) / (ab * 2) - x1,
+        xb = (b3 * c2 - b2 * c3) / ab,
+        ya = (a3 * d2 - a2 * d3) / (ab * 2) - y1,
+        yb = (a2 * c3 - a3 * c2) / ab,
+        A = xb * xb + yb * yb - 1,
+        B = 2 * (r1 + xa * xb + ya * yb),
+        C = xa * xa + ya * ya - r1 * r1,
+        r = -(A ? (B + Math.sqrt(B * B - 4 * A * C)) / (2 * A) : C / B);
+    return {
+      x: x1 + xa + xb * r,
+      y: y1 + ya + yb * r,
+      r: r
+    };
+  }
+
+  function place(b, a, c) {
+    var dx = b.x - a.x,
+        x,
+        a2,
+        dy = b.y - a.y,
+        y,
+        b2,
+        d2 = dx * dx + dy * dy;
+
+    if (d2) {
+      a2 = a.r + c.r, a2 *= a2;
+      b2 = b.r + c.r, b2 *= b2;
+
+      if (a2 > b2) {
+        x = (d2 + b2 - a2) / (2 * d2);
+        y = Math.sqrt(Math.max(0, b2 / d2 - x * x));
+        c.x = b.x - x * dx - y * dy;
+        c.y = b.y - x * dy + y * dx;
+      } else {
+        x = (d2 + a2 - b2) / (2 * d2);
+        y = Math.sqrt(Math.max(0, a2 / d2 - x * x));
+        c.x = a.x + x * dx - y * dy;
+        c.y = a.y + x * dy + y * dx;
+      }
+    } else {
+      c.x = a.x + c.r;
+      c.y = a.y;
+    }
+  }
+
+  function intersects(a, b) {
+    var dr = a.r + b.r - 1e-6,
+        dx = b.x - a.x,
+        dy = b.y - a.y;
+    return dr > 0 && dr * dr > dx * dx + dy * dy;
+  }
+
+  function score(node) {
+    var a = node._,
+        b = node.next._,
+        ab = a.r + b.r,
+        dx = (a.x * b.r + b.x * a.r) / ab,
+        dy = (a.y * b.r + b.y * a.r) / ab;
+    return dx * dx + dy * dy;
+  }
+
+  function Node(circle) {
+    this._ = circle;
+    this.next = null;
+    this.previous = null;
+  }
+
+  function packEnclose(circles) {
+    if (!(n = (circles = array$2(circles)).length)) return 0;
+    var a, b, c, n, aa, ca, i, j, k, sj, sk; // Place the first circle.
+
+    a = circles[0], a.x = 0, a.y = 0;
+    if (!(n > 1)) return a.r; // Place the second circle.
+
+    b = circles[1], a.x = -b.r, b.x = a.r, b.y = 0;
+    if (!(n > 2)) return a.r + b.r; // Place the third circle.
+
+    place(b, a, c = circles[2]); // Initialize the front-chain using the first three circles a, b and c.
+
+    a = new Node(a), b = new Node(b), c = new Node(c);
+    a.next = c.previous = b;
+    b.next = a.previous = c;
+    c.next = b.previous = a; // Attempt to place each remaining circle…
+
+    pack: for (i = 3; i < n; ++i) {
+      place(a._, b._, c = circles[i]), c = new Node(c); // Find the closest intersecting circle on the front-chain, if any.
+      // “Closeness” is determined by linear distance along the front-chain.
+      // “Ahead” or “behind” is likewise determined by linear distance.
+
+      j = b.next, k = a.previous, sj = b._.r, sk = a._.r;
+
+      do {
+        if (sj <= sk) {
+          if (intersects(j._, c._)) {
+            b = j, a.next = b, b.previous = a, --i;
+            continue pack;
+          }
+
+          sj += j._.r, j = j.next;
+        } else {
+          if (intersects(k._, c._)) {
+            a = k, a.next = b, b.previous = a, --i;
+            continue pack;
+          }
+
+          sk += k._.r, k = k.previous;
+        }
+      } while (j !== k.next); // Success! Insert the new circle c between a and b.
+
+
+      c.previous = a, c.next = b, a.next = b.previous = b = c; // Compute the new closest circle pair to the centroid.
+
+      aa = score(a);
+
+      while ((c = c.next) !== b) {
+        if ((ca = score(c)) < aa) {
+          a = c, aa = ca;
+        }
+      }
+
+      b = a.next;
+    } // Compute the enclosing circle of the front chain.
+
+
+    a = [b._], c = b;
+
+    while ((c = c.next) !== b) a.push(c._);
+
+    c = enclose(a); // Translate the circles to put the enclosing circle around the origin.
+
+    for (i = 0; i < n; ++i) a = circles[i], a.x -= c.x, a.y -= c.y;
+
+    return c.r;
+  }
+
+  function optional(f) {
+    return f == null ? null : required(f);
+  }
+  function required(f) {
+    if (typeof f !== "function") throw new Error();
+    return f;
+  }
+
+  function constantZero() {
+    return 0;
+  }
+  function constant (x) {
+    return function () {
+      return x;
+    };
+  }
+
+  function defaultRadius(d) {
+    return Math.sqrt(d.value);
+  }
+
+  function pack () {
+    var radius = null,
+        dx = 1,
+        dy = 1,
+        padding = constantZero;
+
+    function pack(root) {
+      root.x = dx / 2, root.y = dy / 2;
+
+      if (radius) {
+        root.eachBefore(radiusLeaf(radius)).eachAfter(packChildren(padding, 0.5)).eachBefore(translateChild(1));
+      } else {
+        root.eachBefore(radiusLeaf(defaultRadius)).eachAfter(packChildren(constantZero, 1)).eachAfter(packChildren(padding, root.r / Math.min(dx, dy))).eachBefore(translateChild(Math.min(dx, dy) / (2 * root.r)));
+      }
+
+      return root;
+    }
+
+    pack.radius = function (x) {
+      return arguments.length ? (radius = optional(x), pack) : radius;
+    };
+
+    pack.size = function (x) {
+      return arguments.length ? (dx = +x[0], dy = +x[1], pack) : [dx, dy];
+    };
+
+    pack.padding = function (x) {
+      return arguments.length ? (padding = typeof x === "function" ? x : constant(+x), pack) : padding;
+    };
+
+    return pack;
+  }
+
+  function radiusLeaf(radius) {
+    return function (node) {
+      if (!node.children) {
+        node.r = Math.max(0, +radius(node) || 0);
+      }
+    };
+  }
+
+  function packChildren(padding, k) {
+    return function (node) {
+      if (children = node.children) {
+        var children,
+            i,
+            n = children.length,
+            r = padding(node) * k || 0,
+            e;
+        if (r) for (i = 0; i < n; ++i) children[i].r += r;
+        e = packEnclose(children);
+        if (r) for (i = 0; i < n; ++i) children[i].r -= r;
+        node.r = e + r;
+      }
+    };
+  }
+
+  function translateChild(k) {
+    return function (node) {
+      var parent = node.parent;
+      node.r *= k;
+
+      if (parent) {
+        node.x = parent.x + k * node.x;
+        node.y = parent.y + k * node.y;
+      }
+    };
+  }
+
+  function roundNode (node) {
+    node.x0 = Math.round(node.x0);
+    node.y0 = Math.round(node.y0);
+    node.x1 = Math.round(node.x1);
+    node.y1 = Math.round(node.y1);
+  }
+
+  function treemapDice (parent, x0, y0, x1, y1) {
+    var nodes = parent.children,
+        node,
+        i = -1,
+        n = nodes.length,
+        k = parent.value && (x1 - x0) / parent.value;
+
+    while (++i < n) {
+      node = nodes[i], node.y0 = y0, node.y1 = y1;
+      node.x0 = x0, node.x1 = x0 += node.value * k;
+    }
+  }
+
+  function partition$1 () {
+    var dx = 1,
+        dy = 1,
+        padding = 0,
+        round = false;
+
+    function partition(root) {
+      var n = root.height + 1;
+      root.x0 = root.y0 = padding;
+      root.x1 = dx;
+      root.y1 = dy / n;
+      root.eachBefore(positionNode(dy, n));
+      if (round) root.eachBefore(roundNode);
+      return root;
+    }
+
+    function positionNode(dy, n) {
+      return function (node) {
+        if (node.children) {
+          treemapDice(node, node.x0, dy * (node.depth + 1) / n, node.x1, dy * (node.depth + 2) / n);
+        }
+
+        var x0 = node.x0,
+            y0 = node.y0,
+            x1 = node.x1 - padding,
+            y1 = node.y1 - padding;
+        if (x1 < x0) x0 = x1 = (x0 + x1) / 2;
+        if (y1 < y0) y0 = y1 = (y0 + y1) / 2;
+        node.x0 = x0;
+        node.y0 = y0;
+        node.x1 = x1;
+        node.y1 = y1;
+      };
+    }
+
+    partition.round = function (x) {
+      return arguments.length ? (round = !!x, partition) : round;
+    };
+
+    partition.size = function (x) {
+      return arguments.length ? (dx = +x[0], dy = +x[1], partition) : [dx, dy];
+    };
+
+    partition.padding = function (x) {
+      return arguments.length ? (padding = +x, partition) : padding;
+    };
+
+    return partition;
+  }
+
+  var preroot = {
+    depth: -1
+  },
+      ambiguous = {};
+
+  function defaultId(d) {
+    return d.id;
+  }
+
+  function defaultParentId(d) {
+    return d.parentId;
+  }
+
+  function stratify () {
+    var id = defaultId,
+        parentId = defaultParentId;
+
+    function stratify(data) {
+      var nodes = Array.from(data),
+          n = nodes.length,
+          d,
+          i,
+          root,
+          parent,
+          node,
+          nodeId,
+          nodeKey,
+          nodeByKey = new Map();
+
+      for (i = 0; i < n; ++i) {
+        d = nodes[i], node = nodes[i] = new Node$1(d);
+
+        if ((nodeId = id(d, i, data)) != null && (nodeId += "")) {
+          nodeKey = node.id = nodeId;
+          nodeByKey.set(nodeKey, nodeByKey.has(nodeKey) ? ambiguous : node);
+        }
+
+        if ((nodeId = parentId(d, i, data)) != null && (nodeId += "")) {
+          node.parent = nodeId;
+        }
+      }
+
+      for (i = 0; i < n; ++i) {
+        node = nodes[i];
+
+        if (nodeId = node.parent) {
+          parent = nodeByKey.get(nodeId);
+          if (!parent) throw new Error("missing: " + nodeId);
+          if (parent === ambiguous) throw new Error("ambiguous: " + nodeId);
+          if (parent.children) parent.children.push(node);else parent.children = [node];
+          node.parent = parent;
+        } else {
+          if (root) throw new Error("multiple roots");
+          root = node;
+        }
+      }
+
+      if (!root) throw new Error("no root");
+      root.parent = preroot;
+      root.eachBefore(function (node) {
+        node.depth = node.parent.depth + 1;
+        --n;
+      }).eachBefore(computeHeight);
+      root.parent = null;
+      if (n > 0) throw new Error("cycle");
+      return root;
+    }
+
+    stratify.id = function (x) {
+      return arguments.length ? (id = required(x), stratify) : id;
+    };
+
+    stratify.parentId = function (x) {
+      return arguments.length ? (parentId = required(x), stratify) : parentId;
+    };
+
+    return stratify;
+  }
+
+  function defaultSeparation$1(a, b) {
+    return a.parent === b.parent ? 1 : 2;
+  } // function radialSeparation(a, b) {
+  //   return (a.parent === b.parent ? 1 : 2) / a.depth;
+  // }
+  // This function is used to traverse the left contour of a subtree (or
+  // subforest). It returns the successor of v on this contour. This successor is
+  // either given by the leftmost child of v or by the thread of v. The function
+  // returns null if and only if v is on the highest level of its subtree.
+
+
+  function nextLeft(v) {
+    var children = v.children;
+    return children ? children[0] : v.t;
+  } // This function works analogously to nextLeft.
+
+
+  function nextRight(v) {
+    var children = v.children;
+    return children ? children[children.length - 1] : v.t;
+  } // Shifts the current subtree rooted at w+. This is done by increasing
+  // prelim(w+) and mod(w+) by shift.
+
+
+  function moveSubtree(wm, wp, shift) {
+    var change = shift / (wp.i - wm.i);
+    wp.c -= change;
+    wp.s += shift;
+    wm.c += change;
+    wp.z += shift;
+    wp.m += shift;
+  } // All other shifts, applied to the smaller subtrees between w- and w+, are
+  // performed by this function. To prepare the shifts, we have to adjust
+  // change(w+), shift(w+), and change(w-).
+
+
+  function executeShifts(v) {
+    var shift = 0,
+        change = 0,
+        children = v.children,
+        i = children.length,
+        w;
+
+    while (--i >= 0) {
+      w = children[i];
+      w.z += shift;
+      w.m += shift;
+      shift += w.s + (change += w.c);
+    }
+  } // If vi-’s ancestor is a sibling of v, returns vi-’s ancestor. Otherwise,
+  // returns the specified (default) ancestor.
+
+
+  function nextAncestor(vim, v, ancestor) {
+    return vim.a.parent === v.parent ? vim.a : ancestor;
+  }
+
+  function TreeNode(node, i) {
+    this._ = node;
+    this.parent = null;
+    this.children = null;
+    this.A = null; // default ancestor
+
+    this.a = this; // ancestor
+
+    this.z = 0; // prelim
+
+    this.m = 0; // mod
+
+    this.c = 0; // change
+
+    this.s = 0; // shift
+
+    this.t = null; // thread
+
+    this.i = i; // number
+  }
+
+  TreeNode.prototype = Object.create(Node$1.prototype);
+
+  function treeRoot(root) {
+    var tree = new TreeNode(root, 0),
+        node,
+        nodes = [tree],
+        child,
+        children,
+        i,
+        n;
+
+    while (node = nodes.pop()) {
+      if (children = node._.children) {
+        node.children = new Array(n = children.length);
+
+        for (i = n - 1; i >= 0; --i) {
+          nodes.push(child = node.children[i] = new TreeNode(children[i], i));
+          child.parent = node;
+        }
+      }
+    }
+
+    (tree.parent = new TreeNode(null, 0)).children = [tree];
+    return tree;
+  } // Node-link tree diagram using the Reingold-Tilford "tidy" algorithm
+
+
+  function tree$1 () {
+    var separation = defaultSeparation$1,
+        dx = 1,
+        dy = 1,
+        nodeSize = null;
+
+    function tree(root) {
+      var t = treeRoot(root); // Compute the layout using Buchheim et al.’s algorithm.
+
+      t.eachAfter(firstWalk), t.parent.m = -t.z;
+      t.eachBefore(secondWalk); // If a fixed node size is specified, scale x and y.
+
+      if (nodeSize) root.eachBefore(sizeNode); // If a fixed tree size is specified, scale x and y based on the extent.
+      // Compute the left-most, right-most, and depth-most nodes for extents.
+      else {
+        var left = root,
+            right = root,
+            bottom = root;
+        root.eachBefore(function (node) {
+          if (node.x < left.x) left = node;
+          if (node.x > right.x) right = node;
+          if (node.depth > bottom.depth) bottom = node;
+        });
+        var s = left === right ? 1 : separation(left, right) / 2,
+            tx = s - left.x,
+            kx = dx / (right.x + s + tx),
+            ky = dy / (bottom.depth || 1);
+        root.eachBefore(function (node) {
+          node.x = (node.x + tx) * kx;
+          node.y = node.depth * ky;
+        });
+      }
+      return root;
+    } // Computes a preliminary x-coordinate for v. Before that, FIRST WALK is
+    // applied recursively to the children of v, as well as the function
+    // APPORTION. After spacing out the children by calling EXECUTE SHIFTS, the
+    // node v is placed to the midpoint of its outermost children.
+
+
+    function firstWalk(v) {
+      var children = v.children,
+          siblings = v.parent.children,
+          w = v.i ? siblings[v.i - 1] : null;
+
+      if (children) {
+        executeShifts(v);
+        var midpoint = (children[0].z + children[children.length - 1].z) / 2;
+
+        if (w) {
+          v.z = w.z + separation(v._, w._);
+          v.m = v.z - midpoint;
+        } else {
+          v.z = midpoint;
+        }
+      } else if (w) {
+        v.z = w.z + separation(v._, w._);
+      }
+
+      v.parent.A = apportion(v, w, v.parent.A || siblings[0]);
+    } // Computes all real x-coordinates by summing up the modifiers recursively.
+
+
+    function secondWalk(v) {
+      v._.x = v.z + v.parent.m;
+      v.m += v.parent.m;
+    } // The core of the algorithm. Here, a new subtree is combined with the
+    // previous subtrees. Threads are used to traverse the inside and outside
+    // contours of the left and right subtree up to the highest common level. The
+    // vertices used for the traversals are vi+, vi-, vo-, and vo+, where the
+    // superscript o means outside and i means inside, the subscript - means left
+    // subtree and + means right subtree. For summing up the modifiers along the
+    // contour, we use respective variables si+, si-, so-, and so+. Whenever two
+    // nodes of the inside contours conflict, we compute the left one of the
+    // greatest uncommon ancestors using the function ANCESTOR and call MOVE
+    // SUBTREE to shift the subtree and prepare the shifts of smaller subtrees.
+    // Finally, we add a new thread (if necessary).
+
+
+    function apportion(v, w, ancestor) {
+      if (w) {
+        var vip = v,
+            vop = v,
+            vim = w,
+            vom = vip.parent.children[0],
+            sip = vip.m,
+            sop = vop.m,
+            sim = vim.m,
+            som = vom.m,
+            shift;
+
+        while (vim = nextRight(vim), vip = nextLeft(vip), vim && vip) {
+          vom = nextLeft(vom);
+          vop = nextRight(vop);
+          vop.a = v;
+          shift = vim.z + sim - vip.z - sip + separation(vim._, vip._);
+
+          if (shift > 0) {
+            moveSubtree(nextAncestor(vim, v, ancestor), v, shift);
+            sip += shift;
+            sop += shift;
+          }
+
+          sim += vim.m;
+          sip += vip.m;
+          som += vom.m;
+          sop += vop.m;
+        }
+
+        if (vim && !nextRight(vop)) {
+          vop.t = vim;
+          vop.m += sim - sop;
+        }
+
+        if (vip && !nextLeft(vom)) {
+          vom.t = vip;
+          vom.m += sip - som;
+          ancestor = v;
+        }
+      }
+
+      return ancestor;
+    }
+
+    function sizeNode(node) {
+      node.x *= dx;
+      node.y = node.depth * dy;
+    }
+
+    tree.separation = function (x) {
+      return arguments.length ? (separation = x, tree) : separation;
+    };
+
+    tree.size = function (x) {
+      return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], tree) : nodeSize ? null : [dx, dy];
+    };
+
+    tree.nodeSize = function (x) {
+      return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], tree) : nodeSize ? [dx, dy] : null;
+    };
+
+    return tree;
+  }
+
+  function treemapSlice (parent, x0, y0, x1, y1) {
+    var nodes = parent.children,
+        node,
+        i = -1,
+        n = nodes.length,
+        k = parent.value && (y1 - y0) / parent.value;
+
+    while (++i < n) {
+      node = nodes[i], node.x0 = x0, node.x1 = x1;
+      node.y0 = y0, node.y1 = y0 += node.value * k;
+    }
+  }
+
+  var phi = (1 + Math.sqrt(5)) / 2;
+  function squarifyRatio(ratio, parent, x0, y0, x1, y1) {
+    var rows = [],
+        nodes = parent.children,
+        row,
+        nodeValue,
+        i0 = 0,
+        i1 = 0,
+        n = nodes.length,
+        dx,
+        dy,
+        value = parent.value,
+        sumValue,
+        minValue,
+        maxValue,
+        newRatio,
+        minRatio,
+        alpha,
+        beta;
+
+    while (i0 < n) {
+      dx = x1 - x0, dy = y1 - y0; // Find the next non-empty node.
+
+      do sumValue = nodes[i1++].value; while (!sumValue && i1 < n);
+
+      minValue = maxValue = sumValue;
+      alpha = Math.max(dy / dx, dx / dy) / (value * ratio);
+      beta = sumValue * sumValue * alpha;
+      minRatio = Math.max(maxValue / beta, beta / minValue); // Keep adding nodes while the aspect ratio maintains or improves.
+
+      for (; i1 < n; ++i1) {
+        sumValue += nodeValue = nodes[i1].value;
+        if (nodeValue < minValue) minValue = nodeValue;
+        if (nodeValue > maxValue) maxValue = nodeValue;
+        beta = sumValue * sumValue * alpha;
+        newRatio = Math.max(maxValue / beta, beta / minValue);
+
+        if (newRatio > minRatio) {
+          sumValue -= nodeValue;
+          break;
+        }
+
+        minRatio = newRatio;
+      } // Position and record the row orientation.
+
+
+      rows.push(row = {
+        value: sumValue,
+        dice: dx < dy,
+        children: nodes.slice(i0, i1)
+      });
+      if (row.dice) treemapDice(row, x0, y0, x1, value ? y0 += dy * sumValue / value : y1);else treemapSlice(row, x0, y0, value ? x0 += dx * sumValue / value : x1, y1);
+      value -= sumValue, i0 = i1;
+    }
+
+    return rows;
+  }
+  var treemapSquarify = (function custom(ratio) {
+    function squarify(parent, x0, y0, x1, y1) {
+      squarifyRatio(ratio, parent, x0, y0, x1, y1);
+    }
+
+    squarify.ratio = function (x) {
+      return custom((x = +x) > 1 ? x : 1);
+    };
+
+    return squarify;
+  })(phi);
+
+  function treemap () {
+    var tile = treemapSquarify,
+        round = false,
+        dx = 1,
+        dy = 1,
+        paddingStack = [0],
+        paddingInner = constantZero,
+        paddingTop = constantZero,
+        paddingRight = constantZero,
+        paddingBottom = constantZero,
+        paddingLeft = constantZero;
+
+    function treemap(root) {
+      root.x0 = root.y0 = 0;
+      root.x1 = dx;
+      root.y1 = dy;
+      root.eachBefore(positionNode);
+      paddingStack = [0];
+      if (round) root.eachBefore(roundNode);
+      return root;
+    }
+
+    function positionNode(node) {
+      var p = paddingStack[node.depth],
+          x0 = node.x0 + p,
+          y0 = node.y0 + p,
+          x1 = node.x1 - p,
+          y1 = node.y1 - p;
+      if (x1 < x0) x0 = x1 = (x0 + x1) / 2;
+      if (y1 < y0) y0 = y1 = (y0 + y1) / 2;
+      node.x0 = x0;
+      node.y0 = y0;
+      node.x1 = x1;
+      node.y1 = y1;
+
+      if (node.children) {
+        p = paddingStack[node.depth + 1] = paddingInner(node) / 2;
+        x0 += paddingLeft(node) - p;
+        y0 += paddingTop(node) - p;
+        x1 -= paddingRight(node) - p;
+        y1 -= paddingBottom(node) - p;
+        if (x1 < x0) x0 = x1 = (x0 + x1) / 2;
+        if (y1 < y0) y0 = y1 = (y0 + y1) / 2;
+        tile(node, x0, y0, x1, y1);
+      }
+    }
+
+    treemap.round = function (x) {
+      return arguments.length ? (round = !!x, treemap) : round;
+    };
+
+    treemap.size = function (x) {
+      return arguments.length ? (dx = +x[0], dy = +x[1], treemap) : [dx, dy];
+    };
+
+    treemap.tile = function (x) {
+      return arguments.length ? (tile = required(x), treemap) : tile;
+    };
+
+    treemap.padding = function (x) {
+      return arguments.length ? treemap.paddingInner(x).paddingOuter(x) : treemap.paddingInner();
+    };
+
+    treemap.paddingInner = function (x) {
+      return arguments.length ? (paddingInner = typeof x === "function" ? x : constant(+x), treemap) : paddingInner;
+    };
+
+    treemap.paddingOuter = function (x) {
+      return arguments.length ? treemap.paddingTop(x).paddingRight(x).paddingBottom(x).paddingLeft(x) : treemap.paddingTop();
+    };
+
+    treemap.paddingTop = function (x) {
+      return arguments.length ? (paddingTop = typeof x === "function" ? x : constant(+x), treemap) : paddingTop;
+    };
+
+    treemap.paddingRight = function (x) {
+      return arguments.length ? (paddingRight = typeof x === "function" ? x : constant(+x), treemap) : paddingRight;
+    };
+
+    treemap.paddingBottom = function (x) {
+      return arguments.length ? (paddingBottom = typeof x === "function" ? x : constant(+x), treemap) : paddingBottom;
+    };
+
+    treemap.paddingLeft = function (x) {
+      return arguments.length ? (paddingLeft = typeof x === "function" ? x : constant(+x), treemap) : paddingLeft;
+    };
+
+    return treemap;
+  }
+
+  function treemapBinary (parent, x0, y0, x1, y1) {
+    var nodes = parent.children,
+        i,
+        n = nodes.length,
+        sum,
+        sums = new Array(n + 1);
+
+    for (sums[0] = sum = i = 0; i < n; ++i) {
+      sums[i + 1] = sum += nodes[i].value;
+    }
+
+    partition(0, n, parent.value, x0, y0, x1, y1);
+
+    function partition(i, j, value, x0, y0, x1, y1) {
+      if (i >= j - 1) {
+        var node = nodes[i];
+        node.x0 = x0, node.y0 = y0;
+        node.x1 = x1, node.y1 = y1;
+        return;
+      }
+
+      var valueOffset = sums[i],
+          valueTarget = value / 2 + valueOffset,
+          k = i + 1,
+          hi = j - 1;
+
+      while (k < hi) {
+        var mid = k + hi >>> 1;
+        if (sums[mid] < valueTarget) k = mid + 1;else hi = mid;
+      }
+
+      if (valueTarget - sums[k - 1] < sums[k] - valueTarget && i + 1 < k) --k;
+      var valueLeft = sums[k] - valueOffset,
+          valueRight = value - valueLeft;
+
+      if (x1 - x0 > y1 - y0) {
+        var xk = value ? (x0 * valueRight + x1 * valueLeft) / value : x1;
+        partition(i, k, valueLeft, x0, y0, xk, y1);
+        partition(k, j, valueRight, xk, y0, x1, y1);
+      } else {
+        var yk = value ? (y0 * valueRight + y1 * valueLeft) / value : y1;
+        partition(i, k, valueLeft, x0, y0, x1, yk);
+        partition(k, j, valueRight, x0, yk, x1, y1);
+      }
+    }
+  }
+
+  function treemapSliceDice (parent, x0, y0, x1, y1) {
+    (parent.depth & 1 ? treemapSlice : treemapDice)(parent, x0, y0, x1, y1);
+  }
+
+  var treemapResquarify = (function custom(ratio) {
+    function resquarify(parent, x0, y0, x1, y1) {
+      if ((rows = parent._squarify) && rows.ratio === ratio) {
+        var rows,
+            row,
+            nodes,
+            i,
+            j = -1,
+            n,
+            m = rows.length,
+            value = parent.value;
+
+        while (++j < m) {
+          row = rows[j], nodes = row.children;
+
+          for (i = row.value = 0, n = nodes.length; i < n; ++i) row.value += nodes[i].value;
+
+          if (row.dice) treemapDice(row, x0, y0, x1, value ? y0 += (y1 - y0) * row.value / value : y1);else treemapSlice(row, x0, y0, value ? x0 += (x1 - x0) * row.value / value : x1, y1);
+          value -= row.value;
+        }
+      } else {
+        parent._squarify = rows = squarifyRatio(ratio, parent, x0, y0, x1, y1);
+        rows.ratio = ratio;
+      }
+    }
+
+    resquarify.ratio = function (x) {
+      return custom((x = +x) > 1 ? x : 1);
+    };
+
+    return resquarify;
+  })(phi);
+
+  function lookup$2(tree, key, filter) {
+    const map = {};
+    tree.each(node => {
+      const t = node.data;
+      if (filter(t)) map[key(t)] = node;
+    });
+    tree.lookup = map;
+    return tree;
+  }
+  /**
+   * Nest tuples into a tree structure, grouped by key values.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<function(object): *>} params.keys - The key fields to nest by, in order.
+   * @param {boolean} [params.generate=false] - A boolean flag indicating if
+   *   non-leaf nodes generated by this transform should be included in the
+   *   output. The default (false) includes only the input data (leaf nodes)
+   *   in the data stream.
+   */
+
+
+  function Nest(params) {
+    Transform.call(this, null, params);
+  }
+
+  Nest.Definition = {
+    'type': 'Nest',
+    'metadata': {
+      'treesource': true,
+      'changes': true
+    },
+    'params': [{
+      'name': 'keys',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'generate',
+      'type': 'boolean'
+    }]
+  };
+
+  const children$1 = n => n.values;
+
+  inherits(Nest, Transform, {
+    transform(_, pulse) {
+      if (!pulse.source) {
+        error('Nest transform requires an upstream data source.');
+      }
+
+      var gen = _.generate,
+          mod = _.modified(),
+          out = pulse.clone(),
+          tree = this.value;
+
+      if (!tree || mod || pulse.changed()) {
+        // collect nodes to remove
+        if (tree) {
+          tree.each(node => {
+            if (node.children && isTuple(node.data)) {
+              out.rem.push(node.data);
+            }
+          });
+        } // generate new tree structure
+
+
+        this.value = tree = hierarchy({
+          values: array$5(_.keys).reduce((n, k) => {
+            n.key(k);
+            return n;
+          }, nest()).entries(out.source)
+        }, children$1); // collect nodes to add
+
+        if (gen) {
+          tree.each(node => {
+            if (node.children) {
+              node = ingest$1(node.data);
+              out.add.push(node);
+              out.source.push(node);
+            }
+          });
+        } // build lookup table
+
+
+        lookup$2(tree, tupleid, tupleid);
+      }
+
+      out.source.root = tree;
+      return out;
+    }
+
+  });
+
+  function nest() {
+    const keys = [],
+          nest = {
+      entries: array => entries(apply(array, 0), 0),
+      key: d => (keys.push(d), nest)
+    };
+
+    function apply(array, depth) {
+      if (depth >= keys.length) {
+        return array;
+      }
+
+      const n = array.length,
+            key = keys[depth++],
+            valuesByKey = {},
+            result = {};
+      let i = -1,
+          keyValue,
+          value,
+          values;
+
+      while (++i < n) {
+        keyValue = key(value = array[i]) + '';
+
+        if (values = valuesByKey[keyValue]) {
+          values.push(value);
+        } else {
+          valuesByKey[keyValue] = [value];
+        }
+      }
+
+      for (keyValue in valuesByKey) {
+        result[keyValue] = apply(valuesByKey[keyValue], depth);
+      }
+
+      return result;
+    }
+
+    function entries(map, depth) {
+      if (++depth > keys.length) return map;
+      const array = [];
+
+      for (const key in map) {
+        array.push({
+          key,
+          values: entries(map[key], depth)
+        });
+      }
+
+      return array;
+    }
+
+    return nest;
+  }
+  /**
+   * Abstract class for tree layout.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   */
+
+
+  function HierarchyLayout(params) {
+    Transform.call(this, null, params);
+  }
+
+  const defaultSeparation = (a, b) => a.parent === b.parent ? 1 : 2;
+
+  inherits(HierarchyLayout, Transform, {
+    transform(_, pulse) {
+      if (!pulse.source || !pulse.source.root) {
+        error(this.constructor.name + ' transform requires a backing tree data source.');
+      }
+
+      const layout = this.layout(_.method),
+            fields = this.fields,
+            root = pulse.source.root,
+            as = _.as || fields;
+      if (_.field) root.sum(_.field);else root.count();
+      if (_.sort) root.sort(stableCompare(_.sort, d => d.data));
+      setParams(layout, this.params, _);
+
+      if (layout.separation) {
+        layout.separation(_.separation !== false ? defaultSeparation : one$2);
+      }
+
+      try {
+        this.value = layout(root);
+      } catch (err) {
+        error(err);
+      }
+
+      root.each(node => setFields(node, fields, as));
+      return pulse.reflow(_.modified()).modifies(as).modifies('leaf');
+    }
+
+  });
+
+  function setParams(layout, params, _) {
+    for (let p, i = 0, n = params.length; i < n; ++i) {
+      p = params[i];
+      if (p in _) layout[p](_[p]);
+    }
+  }
+
+  function setFields(node, fields, as) {
+    const t = node.data,
+          n = fields.length - 1;
+
+    for (let i = 0; i < n; ++i) {
+      t[as[i]] = node[fields[i]];
+    }
+
+    t[as[n]] = node.children ? node.children.length : 0;
+  }
+
+  const Output$3 = ['x', 'y', 'r', 'depth', 'children'];
+  /**
+   * Packed circle tree layout.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - The value field to size nodes.
+   */
+
+  function Pack(params) {
+    HierarchyLayout.call(this, params);
+  }
+
+  Pack.Definition = {
+    'type': 'Pack',
+    'metadata': {
+      'tree': true,
+      'modifies': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field'
+    }, {
+      'name': 'sort',
+      'type': 'compare'
+    }, {
+      'name': 'padding',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'radius',
+      'type': 'field',
+      'default': null
+    }, {
+      'name': 'size',
+      'type': 'number',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': Output$3.length,
+      'default': Output$3
+    }]
+  };
+  inherits(Pack, HierarchyLayout, {
+    layout: pack,
+    params: ['radius', 'size', 'padding'],
+    fields: Output$3
+  });
+  const Output$2 = ['x0', 'y0', 'x1', 'y1', 'depth', 'children'];
+  /**
+   * Partition tree layout.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - The value field to size nodes.
+   */
+
+  function Partition(params) {
+    HierarchyLayout.call(this, params);
+  }
+
+  Partition.Definition = {
+    'type': 'Partition',
+    'metadata': {
+      'tree': true,
+      'modifies': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field'
+    }, {
+      'name': 'sort',
+      'type': 'compare'
+    }, {
+      'name': 'padding',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'round',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'size',
+      'type': 'number',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': Output$2.length,
+      'default': Output$2
+    }]
+  };
+  inherits(Partition, HierarchyLayout, {
+    layout: partition$1,
+    params: ['size', 'round', 'padding'],
+    fields: Output$2
+  });
+  /**
+   * Stratify a collection of tuples into a tree structure based on
+   * id and parent id fields.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.key - Unique key field for each tuple.
+   * @param {function(object): *} params.parentKey - Field with key for parent tuple.
+   */
+
+  function Stratify(params) {
+    Transform.call(this, null, params);
+  }
+
+  Stratify.Definition = {
+    'type': 'Stratify',
+    'metadata': {
+      'treesource': true
+    },
+    'params': [{
+      'name': 'key',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'parentKey',
+      'type': 'field',
+      'required': true
+    }]
+  };
+  inherits(Stratify, Transform, {
+    transform(_, pulse) {
+      if (!pulse.source) {
+        error('Stratify transform requires an upstream data source.');
+      }
+
+      let tree = this.value;
+
+      const mod = _.modified(),
+            out = pulse.fork(pulse.ALL).materialize(pulse.SOURCE),
+            run = !tree || mod || pulse.changed(pulse.ADD_REM) || pulse.modified(_.key.fields) || pulse.modified(_.parentKey.fields); // prevent upstream source pollution
+
+
+      out.source = out.source.slice();
+
+      if (run) {
+        tree = out.source.length ? lookup$2(stratify().id(_.key).parentId(_.parentKey)(out.source), _.key, truthy) : lookup$2(stratify()([{}]), _.key, _.key);
+      }
+
+      out.source.root = this.value = tree;
+      return out;
+    }
+
+  });
+  const Layouts = {
+    tidy: tree$1,
+    cluster: cluster
+  };
+  const Output$1$1 = ['x', 'y', 'depth', 'children'];
+  /**
+   * Tree layout. Depending on the method parameter, performs either
+   * Reingold-Tilford 'tidy' layout or dendrogram 'cluster' layout.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   */
+
+  function Tree(params) {
+    HierarchyLayout.call(this, params);
+  }
+
+  Tree.Definition = {
+    'type': 'Tree',
+    'metadata': {
+      'tree': true,
+      'modifies': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field'
+    }, {
+      'name': 'sort',
+      'type': 'compare'
+    }, {
+      'name': 'method',
+      'type': 'enum',
+      'default': 'tidy',
+      'values': ['tidy', 'cluster']
+    }, {
+      'name': 'size',
+      'type': 'number',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'nodeSize',
+      'type': 'number',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'separation',
+      'type': 'boolean',
+      'default': true
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': Output$1$1.length,
+      'default': Output$1$1
+    }]
+  };
+  inherits(Tree, HierarchyLayout, {
+    /**
+     * Tree layout generator. Supports both 'tidy' and 'cluster' layouts.
+     */
+    layout(method) {
+      const m = method || 'tidy';
+      if (has$1(Layouts, m)) return Layouts[m]();else error('Unrecognized Tree layout method: ' + m);
+    },
+
+    params: ['size', 'nodeSize'],
+    fields: Output$1$1
+  });
+  /**
+   * Generate tuples representing links between tree nodes.
+   * The resulting tuples will contain 'source' and 'target' fields,
+   * which point to parent and child node tuples, respectively.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   */
+
+  function TreeLinks(params) {
+    Transform.call(this, [], params);
+  }
+
+  TreeLinks.Definition = {
+    'type': 'TreeLinks',
+    'metadata': {
+      'tree': true,
+      'generates': true,
+      'changes': true
+    },
+    'params': []
+  };
+  inherits(TreeLinks, Transform, {
+    transform(_, pulse) {
+      const links = this.value,
+            tree = pulse.source && pulse.source.root,
+            out = pulse.fork(pulse.NO_SOURCE),
+            lut = {};
+      if (!tree) error('TreeLinks transform requires a tree data source.');
+
+      if (pulse.changed(pulse.ADD_REM)) {
+        // remove previous links
+        out.rem = links; // build lookup table of valid tuples
+
+        pulse.visit(pulse.SOURCE, t => lut[tupleid(t)] = 1); // generate links for all edges incident on valid tuples
+
+        tree.each(node => {
+          const t = node.data,
+                p = node.parent && node.parent.data;
+
+          if (p && lut[tupleid(t)] && lut[tupleid(p)]) {
+            out.add.push(ingest$1({
+              source: p,
+              target: t
+            }));
+          }
+        });
+        this.value = out.add;
+      } else if (pulse.changed(pulse.MOD)) {
+        // build lookup table of modified tuples
+        pulse.visit(pulse.MOD, t => lut[tupleid(t)] = 1); // gather links incident on modified tuples
+
+        links.forEach(link => {
+          if (lut[tupleid(link.source)] || lut[tupleid(link.target)]) {
+            out.mod.push(link);
+          }
+        });
+      }
+
+      return out;
+    }
+
+  });
+  const Tiles = {
+    binary: treemapBinary,
+    dice: treemapDice,
+    slice: treemapSlice,
+    slicedice: treemapSliceDice,
+    squarify: treemapSquarify,
+    resquarify: treemapResquarify
+  };
+  const Output$4 = ['x0', 'y0', 'x1', 'y1', 'depth', 'children'];
+  /**
+   * Treemap layout.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.field - The value field to size nodes.
+   */
+
+  function Treemap(params) {
+    HierarchyLayout.call(this, params);
+  }
+
+  Treemap.Definition = {
+    'type': 'Treemap',
+    'metadata': {
+      'tree': true,
+      'modifies': true
+    },
+    'params': [{
+      'name': 'field',
+      'type': 'field'
+    }, {
+      'name': 'sort',
+      'type': 'compare'
+    }, {
+      'name': 'method',
+      'type': 'enum',
+      'default': 'squarify',
+      'values': ['squarify', 'resquarify', 'binary', 'dice', 'slice', 'slicedice']
+    }, {
+      'name': 'padding',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'paddingInner',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'paddingOuter',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'paddingTop',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'paddingRight',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'paddingBottom',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'paddingLeft',
+      'type': 'number',
+      'default': 0
+    }, {
+      'name': 'ratio',
+      'type': 'number',
+      'default': 1.618033988749895
+    }, {
+      'name': 'round',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'size',
+      'type': 'number',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': Output$4.length,
+      'default': Output$4
+    }]
+  };
+  inherits(Treemap, HierarchyLayout, {
+    /**
+     * Treemap layout generator. Adds 'method' and 'ratio' parameters
+     * to configure the underlying tile method.
+     */
+    layout() {
+      const x = treemap();
+
+      x.ratio = _ => {
+        const t = x.tile();
+        if (t.ratio) x.tile(t.ratio(_));
+      };
+
+      x.method = _ => {
+        if (has$1(Tiles, _)) x.tile(Tiles[_]);else error('Unrecognized Treemap layout method: ' + _);
+      };
+
+      return x;
+    },
+
+    params: ['method', 'ratio', 'size', 'round', 'padding', 'paddingInner', 'paddingOuter', 'paddingTop', 'paddingRight', 'paddingBottom', 'paddingLeft'],
+    fields: Output$4
+  });
+
+  var tree = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    nest: Nest,
+    pack: Pack,
+    partition: Partition,
+    stratify: Stratify,
+    tree: Tree,
+    treelinks: TreeLinks,
+    treemap: Treemap
+  });
+
+  const ALPHA_MASK = 0xff000000; // alpha value equivalent to opacity 0.0625
+
+  const INSIDE_OPACITY_IN_ALPHA = 0x10000000;
+  const INSIDE_OPACITY = 0.0625;
+
+  function baseBitmaps($, data) {
+    const bitmap = $.bitmap(); // when there is no base mark but data points are to be avoided
+
+    (data || []).forEach(d => bitmap.set($(d.boundary[0]), $(d.boundary[3])));
+    return [bitmap, undefined];
+  }
+
+  function markBitmaps($, avoidMarks, labelInside, isGroupArea) {
+    // create canvas
+    const width = $.width,
+          height = $.height,
+          border = labelInside || isGroupArea,
+          context = domCanvas(width, height).getContext('2d'); // render all marks to be avoided into canvas
+
+    avoidMarks.forEach(items => draw(context, items, border)); // get canvas buffer, create bitmaps
+
+    const buffer = new Uint32Array(context.getImageData(0, 0, width, height).data.buffer),
+          layer1 = $.bitmap(),
+          layer2 = border && $.bitmap(); // populate bitmap layers
+
+    let x, y, u, v, alpha;
+
+    for (y = 0; y < height; ++y) {
+      for (x = 0; x < width; ++x) {
+        alpha = buffer[y * width + x] & ALPHA_MASK;
+
+        if (alpha) {
+          u = $(x);
+          v = $(y);
+          if (!isGroupArea) layer1.set(u, v); // update interior bitmap
+
+          if (border && alpha ^ INSIDE_OPACITY_IN_ALPHA) layer2.set(u, v); // update border bitmap
+        }
+      }
+    }
+
+    return [layer1, layer2];
+  }
+
+  function draw(context, items, interior) {
+    if (!items.length) return;
+    const type = items[0].mark.marktype;
+
+    if (type === 'group') {
+      items.forEach(group => {
+        group.items.forEach(mark => draw(context, mark.items, interior));
+      });
+    } else {
+      Marks[type].draw(context, {
+        items: interior ? items.map(prepare) : items
+      });
+    }
+  }
+  /**
+   * Prepare item before drawing into canvas (setting stroke and opacity)
+   * @param {object} source item to be prepared
+   * @returns prepared item
+   */
+
+
+  function prepare(source) {
+    const item = rederive(source, {});
+
+    if (item.stroke) {
+      item.strokeOpacity = 1;
+    }
+
+    if (item.fill) {
+      item.fillOpacity = INSIDE_OPACITY;
+      item.stroke = '#000';
+      item.strokeOpacity = 1;
+      item.strokeWidth = 2;
+    }
+
+    return item;
+  }
+
+  const DIV = 5,
+        // bit shift from x, y index to bit vector array index
+  MOD = 31,
+        // bit mask for index lookup within a bit vector
+  SIZE = 32,
+        // individual bit vector size
+  RIGHT0 = new Uint32Array(SIZE + 1),
+        // left-anchored bit vectors, full -> 0
+  RIGHT1 = new Uint32Array(SIZE + 1); // right-anchored bit vectors, 0 -> full
+
+  RIGHT1[0] = 0;
+  RIGHT0[0] = ~RIGHT1[0];
+
+  for (let i = 1; i <= SIZE; ++i) {
+    RIGHT1[i] = RIGHT1[i - 1] << 1 | 1;
+    RIGHT0[i] = ~RIGHT1[i];
+  }
+
+  function Bitmap(w, h) {
+    const array = new Uint32Array(~~((w * h + SIZE) / SIZE));
+
+    function _set(index, mask) {
+      array[index] |= mask;
+    }
+
+    function _clear(index, mask) {
+      array[index] &= mask;
+    }
+
+    return {
+      array: array,
+      get: (x, y) => {
+        const index = y * w + x;
+        return array[index >>> DIV] & 1 << (index & MOD);
+      },
+      set: (x, y) => {
+        const index = y * w + x;
+
+        _set(index >>> DIV, 1 << (index & MOD));
+      },
+      clear: (x, y) => {
+        const index = y * w + x;
+
+        _clear(index >>> DIV, ~(1 << (index & MOD)));
+      },
+      getRange: (x, y, x2, y2) => {
+        let r = y2,
+            start,
+            end,
+            indexStart,
+            indexEnd;
+
+        for (; r >= y; --r) {
+          start = r * w + x;
+          end = r * w + x2;
+          indexStart = start >>> DIV;
+          indexEnd = end >>> DIV;
+
+          if (indexStart === indexEnd) {
+            if (array[indexStart] & RIGHT0[start & MOD] & RIGHT1[(end & MOD) + 1]) {
+              return true;
+            }
+          } else {
+            if (array[indexStart] & RIGHT0[start & MOD]) return true;
+            if (array[indexEnd] & RIGHT1[(end & MOD) + 1]) return true;
+
+            for (let i = indexStart + 1; i < indexEnd; ++i) {
+              if (array[i]) return true;
+            }
+          }
+        }
+
+        return false;
+      },
+      setRange: (x, y, x2, y2) => {
+        let start, end, indexStart, indexEnd, i;
+
+        for (; y <= y2; ++y) {
+          start = y * w + x;
+          end = y * w + x2;
+          indexStart = start >>> DIV;
+          indexEnd = end >>> DIV;
+
+          if (indexStart === indexEnd) {
+            _set(indexStart, RIGHT0[start & MOD] & RIGHT1[(end & MOD) + 1]);
+          } else {
+            _set(indexStart, RIGHT0[start & MOD]);
+
+            _set(indexEnd, RIGHT1[(end & MOD) + 1]);
+
+            for (i = indexStart + 1; i < indexEnd; ++i) _set(i, 0xffffffff);
+          }
+        }
+      },
+      clearRange: (x, y, x2, y2) => {
+        let start, end, indexStart, indexEnd, i;
+
+        for (; y <= y2; ++y) {
+          start = y * w + x;
+          end = y * w + x2;
+          indexStart = start >>> DIV;
+          indexEnd = end >>> DIV;
+
+          if (indexStart === indexEnd) {
+            _clear(indexStart, RIGHT1[start & MOD] | RIGHT0[(end & MOD) + 1]);
+          } else {
+            _clear(indexStart, RIGHT1[start & MOD]);
+
+            _clear(indexEnd, RIGHT0[(end & MOD) + 1]);
+
+            for (i = indexStart + 1; i < indexEnd; ++i) _clear(i, 0);
+          }
+        }
+      },
+      outOfBounds: (x, y, x2, y2) => x < 0 || y < 0 || y2 >= h || x2 >= w
+    };
+  }
+
+  function scaler(width, height, padding) {
+    const ratio = Math.max(1, Math.sqrt(width * height / 1e6)),
+          w = ~~((width + 2 * padding + ratio) / ratio),
+          h = ~~((height + 2 * padding + ratio) / ratio),
+          scale = _ => ~~((_ + padding) / ratio);
+
+    scale.invert = _ => _ * ratio - padding;
+
+    scale.bitmap = () => Bitmap(w, h);
+
+    scale.ratio = ratio;
+    scale.padding = padding;
+    scale.width = width;
+    scale.height = height;
+    return scale;
+  }
+
+  function placeAreaLabelNaive($, bitmaps, avoidBaseMark, markIndex) {
+    const width = $.width,
+          height = $.height; // try to place a label within an input area mark
+
+    return function (d) {
+      const items = d.datum.datum.items[markIndex].items,
+            // area points
+      n = items.length,
+            // number of points
+      textHeight = d.datum.fontSize,
+            // label width
+      textWidth = textMetrics.width(d.datum, d.datum.text); // label height
+
+      let maxAreaWidth = 0,
+          x1,
+          x2,
+          y1,
+          y2,
+          x,
+          y,
+          areaWidth; // for each area sample point
+
+      for (let i = 0; i < n; ++i) {
+        x1 = items[i].x;
+        y1 = items[i].y;
+        x2 = items[i].x2 === undefined ? x1 : items[i].x2;
+        y2 = items[i].y2 === undefined ? y1 : items[i].y2;
+        x = (x1 + x2) / 2;
+        y = (y1 + y2) / 2;
+        areaWidth = Math.abs(x2 - x1 + y2 - y1);
+
+        if (areaWidth >= maxAreaWidth) {
+          maxAreaWidth = areaWidth;
+          d.x = x;
+          d.y = y;
+        }
+      }
+
+      x = textWidth / 2;
+      y = textHeight / 2;
+      x1 = d.x - x;
+      x2 = d.x + x;
+      y1 = d.y - y;
+      y2 = d.y + y;
+      d.align = 'center';
+
+      if (x1 < 0 && x2 <= width) {
+        d.align = 'left';
+      } else if (0 <= x1 && width < x2) {
+        d.align = 'right';
+      }
+
+      d.baseline = 'middle';
+
+      if (y1 < 0 && y2 <= height) {
+        d.baseline = 'top';
+      } else if (0 <= y1 && height < y2) {
+        d.baseline = 'bottom';
+      }
+
+      return true;
+    };
+  }
+
+  function outOfBounds(x, y, textWidth, textHeight, width, height) {
+    let r = textWidth / 2;
+    return x - r < 0 || x + r > width || y - (r = textHeight / 2) < 0 || y + r > height;
+  }
+
+  function _outOfBounds() {
+    return false;
+  }
+
+  function collision($, x, y, textHeight, textWidth, h, bm0, bm1) {
+    const w = textWidth * h / (textHeight * 2),
+          x1 = $(x - w),
+          x2 = $(x + w),
+          y1 = $(y - (h = h / 2)),
+          y2 = $(y + h);
+    return bm0.outOfBounds(x1, y1, x2, y2) || bm0.getRange(x1, y1, x2, y2) || bm1 && bm1.getRange(x1, y1, x2, y2);
+  }
+
+  function _collision($, x, y, textHeight, textWidth, h, bm0, bm1) {
+    const w = textWidth * h / (textHeight * 2);
+    let x1 = $(x - w),
+        x2 = $(x + w),
+        y1 = $(y - (h = h / 2)),
+        y2 = $(y + h);
+    x1 = x1 > 0 ? x1 : 0;
+    y1 = y1 > 0 ? y1 : 0;
+    x2 = x2 < $.width ? x2 : $.width - 1;
+    y2 = y2 < $.height ? y2 : $.height - 1;
+    return bm0.getRange(x1, y1, x2, y2) || bm1 && bm1.getRange(x1, y1, x2, y2);
+  }
+
+  function getTests(infPadding) {
+    return infPadding ? [_collision, _outOfBounds] : [collision, outOfBounds];
+  }
+
+  function placeAreaLabelReducedSearch($, bitmaps, avoidBaseMark, markIndex, infPadding) {
+    const width = $.width,
+          height = $.height,
+          [collision, outOfBounds] = getTests(infPadding),
+          bm0 = bitmaps[0],
+          // where labels have been placed
+    bm1 = bitmaps[1]; // area outlines
+
+    function tryLabel(_x, _y, maxSize, textWidth, textHeight) {
+      const x = $.invert(_x),
+            y = $.invert(_y);
+      let lo = maxSize,
+          hi = height,
+          mid;
+
+      if (!outOfBounds(x, y, textWidth, textHeight, width, height) && !collision($, x, y, textHeight, textWidth, lo, bm0, bm1) && !collision($, x, y, textHeight, textWidth, textHeight, bm0, null)) {
+        // if the label fits at the current sample point,
+        // perform binary search to find the largest font size that fits
+        while (hi - lo >= 1) {
+          mid = (lo + hi) / 2;
+
+          if (collision($, x, y, textHeight, textWidth, mid, bm0, bm1)) {
+            hi = mid;
+          } else {
+            lo = mid;
+          }
+        } // place label if current lower bound exceeds prior max font size
+
+
+        if (lo > maxSize) {
+          return [x, y, lo, true];
+        }
+      }
+    } // try to place a label within an input area mark
+
+
+    return function (d) {
+      const items = d.datum.datum.items[markIndex].items,
+            // area points
+      n = items.length,
+            // number of points
+      textHeight = d.datum.fontSize,
+            // label width
+      textWidth = textMetrics.width(d.datum, d.datum.text); // label height
+
+      let maxSize = avoidBaseMark ? textHeight : 0,
+          labelPlaced = false,
+          labelPlaced2 = false,
+          maxAreaWidth = 0,
+          x1,
+          x2,
+          y1,
+          y2,
+          x,
+          y,
+          _x,
+          _y,
+          _x1,
+          _xMid,
+          _x2,
+          _y1,
+          _yMid,
+          _y2,
+          areaWidth,
+          result,
+          swapTmp; // for each area sample point
+
+
+      for (let i = 0; i < n; ++i) {
+        x1 = items[i].x;
+        y1 = items[i].y;
+        x2 = items[i].x2 === undefined ? x1 : items[i].x2;
+        y2 = items[i].y2 === undefined ? y1 : items[i].y2;
+
+        if (x1 > x2) {
+          swapTmp = x1;
+          x1 = x2;
+          x2 = swapTmp;
+        }
+
+        if (y1 > y2) {
+          swapTmp = y1;
+          y1 = y2;
+          y2 = swapTmp;
+        }
+
+        _x1 = $(x1);
+        _x2 = $(x2);
+        _xMid = ~~((_x1 + _x2) / 2);
+        _y1 = $(y1);
+        _y2 = $(y2);
+        _yMid = ~~((_y1 + _y2) / 2); // search along the line from mid point between the 2 border to lower border
+
+        for (_x = _xMid; _x >= _x1; --_x) {
+          for (_y = _yMid; _y >= _y1; --_y) {
+            result = tryLabel(_x, _y, maxSize, textWidth, textHeight);
+
+            if (result) {
+              [d.x, d.y, maxSize, labelPlaced] = result;
+            }
+          }
+        } // search along the line from mid point between the 2 border to upper border
+
+
+        for (_x = _xMid; _x <= _x2; ++_x) {
+          for (_y = _yMid; _y <= _y2; ++_y) {
+            result = tryLabel(_x, _y, maxSize, textWidth, textHeight);
+
+            if (result) {
+              [d.x, d.y, maxSize, labelPlaced] = result;
+            }
+          }
+        } // place label at slice center if not placed through other means
+        // and if we're not avoiding overlap with other areas
+
+
+        if (!labelPlaced && !avoidBaseMark) {
+          // one span is zero, hence we can add
+          areaWidth = Math.abs(x2 - x1 + y2 - y1);
+          x = (x1 + x2) / 2;
+          y = (y1 + y2) / 2; // place label if it fits and improves the max area width
+
+          if (areaWidth >= maxAreaWidth && !outOfBounds(x, y, textWidth, textHeight, width, height) && !collision($, x, y, textHeight, textWidth, textHeight, bm0, null)) {
+            maxAreaWidth = areaWidth;
+            d.x = x;
+            d.y = y;
+            labelPlaced2 = true;
+          }
+        }
+      } // record current label placement information, update label bitmap
+
+
+      if (labelPlaced || labelPlaced2) {
+        x = textWidth / 2;
+        y = textHeight / 2;
+        bm0.setRange($(d.x - x), $(d.y - y), $(d.x + x), $(d.y + y));
+        d.align = 'center';
+        d.baseline = 'middle';
+        return true;
+      } else {
+        return false;
+      }
+    };
+  }
+
+  const X_DIR = [-1, -1, 1, 1];
+  const Y_DIR = [-1, 1, -1, 1];
+
+  function placeAreaLabelFloodFill($, bitmaps, avoidBaseMark, markIndex, infPadding) {
+    const width = $.width,
+          height = $.height,
+          [collision, outOfBounds] = getTests(infPadding),
+          bm0 = bitmaps[0],
+          // where labels have been placed
+    bm1 = bitmaps[1],
+          // area outlines
+    bm2 = $.bitmap(); // flood-fill visitations
+    // try to place a label within an input area mark
+
+    return function (d) {
+      const items = d.datum.datum.items[markIndex].items,
+            // area points
+      n = items.length,
+            // number of points
+      textHeight = d.datum.fontSize,
+            // label width
+      textWidth = textMetrics.width(d.datum, d.datum.text),
+            // label height
+      stack = []; // flood fill stack
+
+      let maxSize = avoidBaseMark ? textHeight : 0,
+          labelPlaced = false,
+          labelPlaced2 = false,
+          maxAreaWidth = 0,
+          x1,
+          x2,
+          y1,
+          y2,
+          x,
+          y,
+          _x,
+          _y,
+          lo,
+          hi,
+          mid,
+          areaWidth; // for each area sample point
+
+
+      for (let i = 0; i < n; ++i) {
+        x1 = items[i].x;
+        y1 = items[i].y;
+        x2 = items[i].x2 === undefined ? x1 : items[i].x2;
+        y2 = items[i].y2 === undefined ? y1 : items[i].y2; // add scaled center point to stack
+
+        stack.push([$((x1 + x2) / 2), $((y1 + y2) / 2)]); // perform flood fill, visit points
+
+        while (stack.length) {
+          [_x, _y] = stack.pop(); // exit if point already marked
+
+          if (bm0.get(_x, _y) || bm1.get(_x, _y) || bm2.get(_x, _y)) continue; // mark point in flood fill bitmap
+          // add search points for all (in bound) directions
+
+          bm2.set(_x, _y);
+
+          for (let j = 0; j < 4; ++j) {
+            x = _x + X_DIR[j];
+            y = _y + Y_DIR[j];
+            if (!bm2.outOfBounds(x, y, x, y)) stack.push([x, y]);
+          } // unscale point back to x, y space
+
+
+          x = $.invert(_x);
+          y = $.invert(_y);
+          lo = maxSize;
+          hi = height; // TODO: make this bound smaller
+
+          if (!outOfBounds(x, y, textWidth, textHeight, width, height) && !collision($, x, y, textHeight, textWidth, lo, bm0, bm1) && !collision($, x, y, textHeight, textWidth, textHeight, bm0, null)) {
+            // if the label fits at the current sample point,
+            // perform binary search to find the largest font size that fits
+            while (hi - lo >= 1) {
+              mid = (lo + hi) / 2;
+
+              if (collision($, x, y, textHeight, textWidth, mid, bm0, bm1)) {
+                hi = mid;
+              } else {
+                lo = mid;
+              }
+            } // place label if current lower bound exceeds prior max font size
+
+
+            if (lo > maxSize) {
+              d.x = x;
+              d.y = y;
+              maxSize = lo;
+              labelPlaced = true;
+            }
+          }
+        } // place label at slice center if not placed through other means
+        // and if we're not avoiding overlap with other areas
+
+
+        if (!labelPlaced && !avoidBaseMark) {
+          // one span is zero, hence we can add
+          areaWidth = Math.abs(x2 - x1 + y2 - y1);
+          x = (x1 + x2) / 2;
+          y = (y1 + y2) / 2; // place label if it fits and improves the max area width
+
+          if (areaWidth >= maxAreaWidth && !outOfBounds(x, y, textWidth, textHeight, width, height) && !collision($, x, y, textHeight, textWidth, textHeight, bm0, null)) {
+            maxAreaWidth = areaWidth;
+            d.x = x;
+            d.y = y;
+            labelPlaced2 = true;
+          }
+        }
+      } // record current label placement information, update label bitmap
+
+
+      if (labelPlaced || labelPlaced2) {
+        x = textWidth / 2;
+        y = textHeight / 2;
+        bm0.setRange($(d.x - x), $(d.y - y), $(d.x + x), $(d.y + y));
+        d.align = 'center';
+        d.baseline = 'middle';
+        return true;
+      } else {
+        return false;
+      }
+    };
+  }
+
+  const Aligns = ['right', 'center', 'left'],
+        Baselines = ['bottom', 'middle', 'top'];
+
+  function placeMarkLabel($, bitmaps, anchors, offsets, infPadding) {
+    const width = $.width,
+          height = $.height,
+          bm0 = bitmaps[0],
+          bm1 = bitmaps[1],
+          n = offsets.length;
+    return function (d) {
+      const boundary = d.boundary,
+            textHeight = d.datum.fontSize; // can not be placed if the mark is not visible in the graph bound
+
+      if (!infPadding && (boundary[2] < 0 || boundary[5] < 0 || boundary[0] > width || boundary[3] > height)) {
+        return false;
+      }
+
+      let textWidth = 0,
+          dx,
+          dy,
+          isInside,
+          sizeFactor,
+          insideFactor,
+          x1,
+          x2,
+          y1,
+          y2,
+          xc,
+          yc,
+          _x1,
+          _x2,
+          _y1,
+          _y2; // for each anchor and offset
+
+
+      for (let i = 0; i < n; ++i) {
+        dx = (anchors[i] & 0x3) - 1;
+        dy = (anchors[i] >>> 0x2 & 0x3) - 1;
+        isInside = dx === 0 && dy === 0 || offsets[i] < 0;
+        sizeFactor = dx && dy ? Math.SQRT1_2 : 1;
+        insideFactor = offsets[i] < 0 ? -1 : 1;
+        x1 = boundary[1 + dx] + offsets[i] * dx * sizeFactor;
+        yc = boundary[4 + dy] + insideFactor * textHeight * dy / 2 + offsets[i] * dy * sizeFactor;
+        y1 = yc - textHeight / 2;
+        y2 = yc + textHeight / 2;
+        _x1 = $(x1);
+        _y1 = $(y1);
+        _y2 = $(y2);
+
+        if (infPadding) {
+          _x1 = _x1 < 0 ? 0 : _x1;
+          _y1 = _y1 < 0 ? 0 : _y1;
+          _y2 = _y2 >= $.height ? $.height - 1 : _y2;
+        }
+
+        if (!textWidth) {
+          // to avoid finding width of text label,
+          if (!test(_x1, _x1, _y1, _y2, bm0, bm1, x1, x1, y1, y2, boundary, isInside)) {
+            // skip this anchor/offset option if we fail to place a label with 1px width
+            continue;
+          } else {
+            // Otherwise, find the label width
+            textWidth = textMetrics.width(d.datum, d.datum.text);
+          }
+        }
+
+        xc = x1 + insideFactor * textWidth * dx / 2;
+        x1 = xc - textWidth / 2;
+        x2 = xc + textWidth / 2;
+        _x1 = $(x1);
+        _x2 = $(x2);
+
+        if (infPadding) {
+          _x1 = _x1 < 0 ? 0 : _x1;
+          _x2 = _x2 >= $.width ? $.width - 1 : _x2;
+        }
+
+        if (test(_x1, _x2, _y1, _y2, bm0, bm1, x1, x2, y1, y2, boundary, isInside)) {
+          // place label if the position is placeable
+          d.x = !dx ? xc : dx * insideFactor < 0 ? x2 : x1;
+          d.y = !dy ? yc : dy * insideFactor < 0 ? y2 : y1;
+          d.align = Aligns[dx * insideFactor + 1];
+          d.baseline = Baselines[dy * insideFactor + 1];
+          bm0.setRange(_x1, _y1, _x2, _y2);
+          return true;
+        }
+      }
+
+      return false;
+    };
+  } // Test if a label with the given dimensions can be added without overlap
+
+
+  function test(_x1, _x2, _y1, _y2, bm0, bm1, x1, x2, y1, y2, boundary, isInside) {
+    return !(bm0.outOfBounds(_x1, _y1, _x2, _y2) || (isInside && bm1 ? bm1.getRange(_x1, _y1, _x2, _y2) || !isInMarkBound(x1, y1, x2, y2, boundary) : bm0.getRange(_x1, _y1, _x2, _y2)));
+  }
+
+  function isInMarkBound(x1, y1, x2, y2, boundary) {
+    return boundary[0] <= x1 && x2 <= boundary[2] && boundary[3] <= y1 && y2 <= boundary[5];
+  }
+
+  const TOP = 0x0,
+        MIDDLE = 0x4,
+        BOTTOM = 0x8,
+        LEFT = 0x0,
+        CENTER = 0x1,
+        RIGHT = 0x2; // Mapping from text anchor to number representation
+
+  const anchorCode = {
+    'top-left': TOP + LEFT,
+    'top': TOP + CENTER,
+    'top-right': TOP + RIGHT,
+    'left': MIDDLE + LEFT,
+    'middle': MIDDLE + CENTER,
+    'right': MIDDLE + RIGHT,
+    'bottom-left': BOTTOM + LEFT,
+    'bottom': BOTTOM + CENTER,
+    'bottom-right': BOTTOM + RIGHT
+  };
+  const placeAreaLabel = {
+    'naive': placeAreaLabelNaive,
+    'reduced-search': placeAreaLabelReducedSearch,
+    'floodfill': placeAreaLabelFloodFill
+  };
+
+  function labelLayout(texts, size, compare, offset, anchor, avoidMarks, avoidBaseMark, lineAnchor, markIndex, padding, method) {
+    // early exit for empty data
+    if (!texts.length) return texts;
+    const positions = Math.max(offset.length, anchor.length),
+          offsets = getOffsets(offset, positions),
+          anchors = getAnchors(anchor, positions),
+          marktype = markType(texts[0].datum),
+          grouptype = marktype === 'group' && texts[0].datum.items[markIndex].marktype,
+          isGroupArea = grouptype === 'area',
+          boundary = markBoundary(marktype, grouptype, lineAnchor, markIndex),
+          infPadding = padding === null || padding === Infinity,
+          $ = scaler(size[0], size[1], infPadding ? 0 : padding),
+          isNaiveGroupArea = isGroupArea && method === 'naive'; // prepare text mark data for placing
+
+    const data = texts.map(d => ({
+      datum: d,
+      opacity: 0,
+      x: undefined,
+      y: undefined,
+      align: undefined,
+      baseline: undefined,
+      boundary: boundary(d)
+    }));
+    let bitmaps;
+
+    if (!isNaiveGroupArea) {
+      // sort labels in priority order, if comparator is provided
+      if (compare) {
+        data.sort((a, b) => compare(a.datum, b.datum));
+      } // flag indicating if label can be placed inside its base mark
+
+
+      let labelInside = false;
+
+      for (let i = 0; i < anchors.length && !labelInside; ++i) {
+        // label inside if anchor is at center
+        // label inside if offset to be inside the mark bound
+        labelInside = anchors[i] === 0x5 || offsets[i] < 0;
+      } // extract data information from base mark when base mark is to be avoided
+      // base mark is implicitly avoided if it is a group area
+
+
+      if (marktype && (avoidBaseMark || isGroupArea)) {
+        avoidMarks = [texts.map(d => d.datum)].concat(avoidMarks);
+      } // generate bitmaps for layout calculation
+
+
+      bitmaps = avoidMarks.length ? markBitmaps($, avoidMarks, labelInside, isGroupArea) : baseBitmaps($, avoidBaseMark && data);
+    } // generate label placement function
+
+
+    const place = isGroupArea ? placeAreaLabel[method]($, bitmaps, avoidBaseMark, markIndex, infPadding) : placeMarkLabel($, bitmaps, anchors, offsets, infPadding); // place all labels
+
+    data.forEach(d => d.opacity = +place(d));
+    return data;
+  }
+
+  function getOffsets(_, count) {
+    const offsets = new Float64Array(count),
+          n = _.length;
+
+    for (let i = 0; i < n; ++i) offsets[i] = _[i] || 0;
+
+    for (let i = n; i < count; ++i) offsets[i] = offsets[n - 1];
+
+    return offsets;
+  }
+
+  function getAnchors(_, count) {
+    const anchors = new Int8Array(count),
+          n = _.length;
+
+    for (let i = 0; i < n; ++i) anchors[i] |= anchorCode[_[i]];
+
+    for (let i = n; i < count; ++i) anchors[i] = anchors[n - 1];
+
+    return anchors;
+  }
+
+  function markType(item) {
+    return item && item.mark && item.mark.marktype;
+  }
+  /**
+   * Factory function for function for getting base mark boundary, depending
+   * on mark and group type. When mark type is undefined, line or area: boundary
+   * is the coordinate of each data point. When base mark is grouped line,
+   * boundary is either at the beginning or end of the line depending on the
+   * value of lineAnchor. Otherwise, use bounds of base mark.
+   */
+
+
+  function markBoundary(marktype, grouptype, lineAnchor, markIndex) {
+    const xy = d => [d.x, d.x, d.x, d.y, d.y, d.y];
+
+    if (!marktype) {
+      return xy; // no reactive geometry
+    } else if (marktype === 'line' || marktype === 'area') {
+      return d => xy(d.datum);
+    } else if (grouptype === 'line') {
+      return d => {
+        const items = d.datum.items[markIndex].items;
+        return xy(items.length ? items[lineAnchor === 'start' ? 0 : items.length - 1] : {
+          x: NaN,
+          y: NaN
+        });
+      };
+    } else {
+      return d => {
+        const b = d.datum.bounds;
+        return [b.x1, (b.x1 + b.x2) / 2, b.x2, b.y1, (b.y1 + b.y2) / 2, b.y2];
+      };
+    }
+  }
+
+  const Output$1 = ['x', 'y', 'opacity', 'align', 'baseline'];
+  const Anchors = ['top-left', 'left', 'bottom-left', 'top', 'bottom', 'top-right', 'right', 'bottom-right'];
+  /**
+   * Compute text label layout to annotate marks.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<number>} params.size - The size of the layout, provided as a [width, height] array.
+   * @param {function(*,*): number} [params.sort] - An optional
+   *   comparator function for sorting label data in priority order.
+   * @param {Array<string>} [params.anchor] - Label anchor points relative to the base mark bounding box.
+   *   The available options are 'top-left', 'left', 'bottom-left', 'top',
+   *   'bottom', 'top-right', 'right', 'bottom-right', 'middle'.
+   * @param {Array<number>} [params.offset] - Label offsets (in pixels) from the base mark bounding box.
+   *   This parameter is parallel to the list of anchor points.
+   * @param {number | null} [params.padding=0] - The amount (in pixels) that a label may exceed the layout size.
+   *   If this parameter is null, a label may exceed the layout size without any boundary.
+   * @param {string} [params.lineAnchor='end'] - For group line mark labels only, indicates the anchor
+   *   position for labels. One of 'start' or 'end'.
+   * @param {string} [params.markIndex=0] - For group mark labels only, an index indicating
+   *   which mark within the group should be labeled.
+   * @param {Array<number>} [params.avoidMarks] - A list of additional mark names for which the label
+   *   layout should avoid overlap.
+   * @param {boolean} [params.avoidBaseMark=true] - Boolean flag indicating if labels should avoid
+   *   overlap with the underlying base mark being labeled.
+   * @param {string} [params.method='naive'] - For area make labels only, a method for
+   *   place labels. One of 'naive', 'reduced-search', or 'floodfill'.
+   * @param {Array<string>} [params.as] - The output fields written by the transform.
+   *   The default is ['x', 'y', 'opacity', 'align', 'baseline'].
+   */
+
+  function Label$1(params) {
+    Transform.call(this, null, params);
+  }
+
+  Label$1.Definition = {
+    type: 'Label',
+    metadata: {
+      modifies: true
+    },
+    params: [{
+      name: 'size',
+      type: 'number',
+      array: true,
+      length: 2,
+      required: true
+    }, {
+      name: 'sort',
+      type: 'compare'
+    }, {
+      name: 'anchor',
+      type: 'string',
+      array: true,
+      default: Anchors
+    }, {
+      name: 'offset',
+      type: 'number',
+      array: true,
+      default: [1]
+    }, {
+      name: 'padding',
+      type: 'number',
+      default: 0,
+      null: true
+    }, {
+      name: 'lineAnchor',
+      type: 'string',
+      values: ['start', 'end'],
+      default: 'end'
+    }, {
+      name: 'markIndex',
+      type: 'number',
+      default: 0
+    }, {
+      name: 'avoidBaseMark',
+      type: 'boolean',
+      default: true
+    }, {
+      name: 'avoidMarks',
+      type: 'data',
+      array: true
+    }, {
+      name: 'method',
+      type: 'string',
+      default: 'naive'
+    }, {
+      name: 'as',
+      type: 'string',
+      array: true,
+      length: Output$1.length,
+      default: Output$1
+    }]
+  };
+  inherits(Label$1, Transform, {
+    transform(_, pulse) {
+      function modp(param) {
+        const p = _[param];
+        return isFunction(p) && pulse.modified(p.fields);
+      }
+
+      const mod = _.modified();
+
+      if (!(mod || pulse.changed(pulse.ADD_REM) || modp('sort'))) return;
+
+      if (!_.size || _.size.length !== 2) {
+        error('Size parameter should be specified as a [width, height] array.');
+      }
+
+      const as = _.as || Output$1; // run label layout
+
+      labelLayout(pulse.materialize(pulse.SOURCE).source || [], _.size, _.sort, array$5(_.offset == null ? 1 : _.offset), array$5(_.anchor || Anchors), _.avoidMarks || [], _.avoidBaseMark !== false, _.lineAnchor || 'end', _.markIndex || 0, _.padding === undefined ? 0 : _.padding, _.method || 'naive').forEach(l => {
+        // write layout results to data stream
+        const t = l.datum;
+        t[as[0]] = l.x;
+        t[as[1]] = l.y;
+        t[as[2]] = l.opacity;
+        t[as[3]] = l.align;
+        t[as[4]] = l.baseline;
+      });
+      return pulse.reflow(mod).modifies(as);
+    }
+
+  });
+
+  var label = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    label: Label$1
+  });
+
+  function partition(data, groupby) {
+    var groups = [],
+        get = function (f) {
+      return f(t);
+    },
+        map,
+        i,
+        n,
+        t,
+        k,
+        g; // partition data points into stack groups
+
+
+    if (groupby == null) {
+      groups.push(data);
+    } else {
+      for (map = {}, i = 0, n = data.length; i < n; ++i) {
+        t = data[i];
+        k = groupby.map(get);
+        g = map[k];
+
+        if (!g) {
+          map[k] = g = [];
+          g.dims = k;
+          groups.push(g);
+        }
+
+        g.push(t);
+      }
+    }
+
+    return groups;
+  }
+  /**
+   * Compute locally-weighted regression fits for one or more data groups.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.x - An accessor for the predictor data field.
+   * @param {function(object): *} params.y - An accessor for the predicted data field.
+   * @param {Array<function(object): *>} [params.groupby] - An array of accessors to groupby.
+   * @param {number} [params.bandwidth=0.3] - The loess bandwidth.
+   */
+
+
+  function Loess(params) {
+    Transform.call(this, null, params);
+  }
+
+  Loess.Definition = {
+    'type': 'Loess',
+    'metadata': {
+      'generates': true
+    },
+    'params': [{
+      'name': 'x',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'y',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'groupby',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'bandwidth',
+      'type': 'number',
+      'default': 0.3
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true
+    }]
+  };
+  inherits(Loess, Transform, {
+    transform(_, pulse) {
+      const out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS);
+
+      if (!this.value || pulse.changed() || _.modified()) {
+        const source = pulse.materialize(pulse.SOURCE).source,
+              groups = partition(source, _.groupby),
+              names = (_.groupby || []).map(accessorName),
+              m = names.length,
+              as = _.as || [accessorName(_.x), accessorName(_.y)],
+              values = [];
+        groups.forEach(g => {
+          loess(g, _.x, _.y, _.bandwidth || 0.3).forEach(p => {
+            const t = {};
+
+            for (let i = 0; i < m; ++i) {
+              t[names[i]] = g.dims[i];
+            }
+
+            t[as[0]] = p[0];
+            t[as[1]] = p[1];
+            values.push(ingest$1(t));
+          });
+        });
+        if (this.value) out.rem = this.value;
+        this.value = out.add = out.source = values;
+      }
+
+      return out;
+    }
+
+  });
+  const Methods = {
+    linear: linear$2,
+    log: log$3,
+    exp: exp$1,
+    pow: pow$3,
+    quad: quad,
+    poly: poly
+  };
+
+  const degreesOfFreedom = (method, order) => method === 'poly' ? order : method === 'quad' ? 2 : 1;
+  /**
+   * Compute regression fits for one or more data groups.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {function(object): *} params.x - An accessor for the predictor data field.
+   * @param {function(object): *} params.y - An accessor for the predicted data field.
+   * @param {string} [params.method='linear'] - The regression method to apply.
+   * @param {Array<function(object): *>} [params.groupby] - An array of accessors to groupby.
+   * @param {Array<number>} [params.extent] - The domain extent over which to plot the regression line.
+   * @param {number} [params.order=3] - The polynomial order. Only applies to the 'poly' method.
+   */
+
+
+  function Regression(params) {
+    Transform.call(this, null, params);
+  }
+
+  Regression.Definition = {
+    'type': 'Regression',
+    'metadata': {
+      'generates': true
+    },
+    'params': [{
+      'name': 'x',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'y',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'groupby',
+      'type': 'field',
+      'array': true
+    }, {
+      'name': 'method',
+      'type': 'string',
+      'default': 'linear',
+      'values': Object.keys(Methods)
+    }, {
+      'name': 'order',
+      'type': 'number',
+      'default': 3
+    }, {
+      'name': 'extent',
+      'type': 'number',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'params',
+      'type': 'boolean',
+      'default': false
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true
+    }]
+  };
+  inherits(Regression, Transform, {
+    transform(_, pulse) {
+      const out = pulse.fork(pulse.NO_SOURCE | pulse.NO_FIELDS);
+
+      if (!this.value || pulse.changed() || _.modified()) {
+        const source = pulse.materialize(pulse.SOURCE).source,
+              groups = partition(source, _.groupby),
+              names = (_.groupby || []).map(accessorName),
+              method = _.method || 'linear',
+              order = _.order || 3,
+              dof = degreesOfFreedom(method, order),
+              as = _.as || [accessorName(_.x), accessorName(_.y)],
+              fit = Methods[method],
+              values = [];
+        let domain = _.extent;
+
+        if (!has$1(Methods, method)) {
+          error('Invalid regression method: ' + method);
+        }
+
+        if (domain != null) {
+          if (method === 'log' && domain[0] <= 0) {
+            pulse.dataflow.warn('Ignoring extent with values <= 0 for log regression.');
+            domain = null;
+          }
+        }
+
+        groups.forEach(g => {
+          const n = g.length;
+
+          if (n <= dof) {
+            pulse.dataflow.warn('Skipping regression with more parameters than data points.');
+            return;
+          }
+
+          const model = fit(g, _.x, _.y, order);
+
+          if (_.params) {
+            // if parameter vectors requested return those
+            values.push(ingest$1({
+              keys: g.dims,
+              coef: model.coef,
+              rSquared: model.rSquared
+            }));
+            return;
+          }
+
+          const dom = domain || extent(g, _.x),
+                add = p => {
+            const t = {};
+
+            for (let i = 0; i < names.length; ++i) {
+              t[names[i]] = g.dims[i];
+            }
+
+            t[as[0]] = p[0];
+            t[as[1]] = p[1];
+            values.push(ingest$1(t));
+          };
+
+          if (method === 'linear') {
+            // for linear regression we only need the end points
+            dom.forEach(x => add([x, model.predict(x)]));
+          } else {
+            // otherwise return trend line sample points
+            sampleCurve(model.predict, dom, 25, 200).forEach(add);
+          }
+        });
+        if (this.value) out.rem = this.value;
+        this.value = out.add = out.source = values;
+      }
+
+      return out;
+    }
+
+  });
+
+  var reg = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    loess: Loess,
+    regression: Regression
+  });
+
+  const EPSILON = Math.pow(2, -52);
+  const EDGE_STACK = new Uint32Array(512);
+  class Delaunator {
+    static from(points, getX = defaultGetX, getY = defaultGetY) {
+      const n = points.length;
+      const coords = new Float64Array(n * 2);
+
+      for (let i = 0; i < n; i++) {
+        const p = points[i];
+        coords[2 * i] = getX(p);
+        coords[2 * i + 1] = getY(p);
+      }
+
+      return new Delaunator(coords);
+    }
+
+    constructor(coords) {
+      const n = coords.length >> 1;
+      if (n > 0 && typeof coords[0] !== 'number') throw new Error('Expected coords to contain numbers.');
+      this.coords = coords; // arrays that will store the triangulation graph
+
+      const maxTriangles = Math.max(2 * n - 5, 0);
+      this._triangles = new Uint32Array(maxTriangles * 3);
+      this._halfedges = new Int32Array(maxTriangles * 3); // temporary arrays for tracking the edges of the advancing convex hull
+
+      this._hashSize = Math.ceil(Math.sqrt(n));
+      this._hullPrev = new Uint32Array(n); // edge to prev edge
+
+      this._hullNext = new Uint32Array(n); // edge to next edge
+
+      this._hullTri = new Uint32Array(n); // edge to adjacent triangle
+
+      this._hullHash = new Int32Array(this._hashSize).fill(-1); // angular edge hash
+      // temporary arrays for sorting points
+
+      this._ids = new Uint32Array(n);
+      this._dists = new Float64Array(n);
+      this.update();
+    }
+
+    update() {
+      const {
+        coords,
+        _hullPrev: hullPrev,
+        _hullNext: hullNext,
+        _hullTri: hullTri,
+        _hullHash: hullHash
+      } = this;
+      const n = coords.length >> 1; // populate an array of point indices; calculate input data bbox
+
+      let minX = Infinity;
+      let minY = Infinity;
+      let maxX = -Infinity;
+      let maxY = -Infinity;
+
+      for (let i = 0; i < n; i++) {
+        const x = coords[2 * i];
+        const y = coords[2 * i + 1];
+        if (x < minX) minX = x;
+        if (y < minY) minY = y;
+        if (x > maxX) maxX = x;
+        if (y > maxY) maxY = y;
+        this._ids[i] = i;
+      }
+
+      const cx = (minX + maxX) / 2;
+      const cy = (minY + maxY) / 2;
+      let minDist = Infinity;
+      let i0, i1, i2; // pick a seed point close to the center
+
+      for (let i = 0; i < n; i++) {
+        const d = dist(cx, cy, coords[2 * i], coords[2 * i + 1]);
+
+        if (d < minDist) {
+          i0 = i;
+          minDist = d;
+        }
+      }
+
+      const i0x = coords[2 * i0];
+      const i0y = coords[2 * i0 + 1];
+      minDist = Infinity; // find the point closest to the seed
+
+      for (let i = 0; i < n; i++) {
+        if (i === i0) continue;
+        const d = dist(i0x, i0y, coords[2 * i], coords[2 * i + 1]);
+
+        if (d < minDist && d > 0) {
+          i1 = i;
+          minDist = d;
+        }
+      }
+
+      let i1x = coords[2 * i1];
+      let i1y = coords[2 * i1 + 1];
+      let minRadius = Infinity; // find the third point which forms the smallest circumcircle with the first two
+
+      for (let i = 0; i < n; i++) {
+        if (i === i0 || i === i1) continue;
+        const r = circumradius(i0x, i0y, i1x, i1y, coords[2 * i], coords[2 * i + 1]);
+
+        if (r < minRadius) {
+          i2 = i;
+          minRadius = r;
+        }
+      }
+
+      let i2x = coords[2 * i2];
+      let i2y = coords[2 * i2 + 1];
+
+      if (minRadius === Infinity) {
+        // order collinear points by dx (or dy if all x are identical)
+        // and return the list as a hull
+        for (let i = 0; i < n; i++) {
+          this._dists[i] = coords[2 * i] - coords[0] || coords[2 * i + 1] - coords[1];
+        }
+
+        quicksort(this._ids, this._dists, 0, n - 1);
+        const hull = new Uint32Array(n);
+        let j = 0;
+
+        for (let i = 0, d0 = -Infinity; i < n; i++) {
+          const id = this._ids[i];
+
+          if (this._dists[id] > d0) {
+            hull[j++] = id;
+            d0 = this._dists[id];
+          }
+        }
+
+        this.hull = hull.subarray(0, j);
+        this.triangles = new Uint32Array(0);
+        this.halfedges = new Uint32Array(0);
+        return;
+      } // swap the order of the seed points for counter-clockwise orientation
+
+
+      if (orient(i0x, i0y, i1x, i1y, i2x, i2y)) {
+        const i = i1;
+        const x = i1x;
+        const y = i1y;
+        i1 = i2;
+        i1x = i2x;
+        i1y = i2y;
+        i2 = i;
+        i2x = x;
+        i2y = y;
+      }
+
+      const center = circumcenter(i0x, i0y, i1x, i1y, i2x, i2y);
+      this._cx = center.x;
+      this._cy = center.y;
+
+      for (let i = 0; i < n; i++) {
+        this._dists[i] = dist(coords[2 * i], coords[2 * i + 1], center.x, center.y);
+      } // sort the points by distance from the seed triangle circumcenter
+
+
+      quicksort(this._ids, this._dists, 0, n - 1); // set up the seed triangle as the starting hull
+
+      this._hullStart = i0;
+      let hullSize = 3;
+      hullNext[i0] = hullPrev[i2] = i1;
+      hullNext[i1] = hullPrev[i0] = i2;
+      hullNext[i2] = hullPrev[i1] = i0;
+      hullTri[i0] = 0;
+      hullTri[i1] = 1;
+      hullTri[i2] = 2;
+      hullHash.fill(-1);
+      hullHash[this._hashKey(i0x, i0y)] = i0;
+      hullHash[this._hashKey(i1x, i1y)] = i1;
+      hullHash[this._hashKey(i2x, i2y)] = i2;
+      this.trianglesLen = 0;
+
+      this._addTriangle(i0, i1, i2, -1, -1, -1);
+
+      for (let k = 0, xp, yp; k < this._ids.length; k++) {
+        const i = this._ids[k];
+        const x = coords[2 * i];
+        const y = coords[2 * i + 1]; // skip near-duplicate points
+
+        if (k > 0 && Math.abs(x - xp) <= EPSILON && Math.abs(y - yp) <= EPSILON) continue;
+        xp = x;
+        yp = y; // skip seed triangle points
+
+        if (i === i0 || i === i1 || i === i2) continue; // find a visible edge on the convex hull using edge hash
+
+        let start = 0;
+
+        for (let j = 0, key = this._hashKey(x, y); j < this._hashSize; j++) {
+          start = hullHash[(key + j) % this._hashSize];
+          if (start !== -1 && start !== hullNext[start]) break;
+        }
+
+        start = hullPrev[start];
+        let e = start,
+            q;
+
+        while (q = hullNext[e], !orient(x, y, coords[2 * e], coords[2 * e + 1], coords[2 * q], coords[2 * q + 1])) {
+          e = q;
+
+          if (e === start) {
+            e = -1;
+            break;
+          }
+        }
+
+        if (e === -1) continue; // likely a near-duplicate point; skip it
+        // add the first triangle from the point
+
+        let t = this._addTriangle(e, i, hullNext[e], -1, -1, hullTri[e]); // recursively flip triangles from the point until they satisfy the Delaunay condition
+
+
+        hullTri[i] = this._legalize(t + 2);
+        hullTri[e] = t; // keep track of boundary triangles on the hull
+
+        hullSize++; // walk forward through the hull, adding more triangles and flipping recursively
+
+        let n = hullNext[e];
+
+        while (q = hullNext[n], orient(x, y, coords[2 * n], coords[2 * n + 1], coords[2 * q], coords[2 * q + 1])) {
+          t = this._addTriangle(n, i, q, hullTri[i], -1, hullTri[n]);
+          hullTri[i] = this._legalize(t + 2);
+          hullNext[n] = n; // mark as removed
+
+          hullSize--;
+          n = q;
+        } // walk backward from the other side, adding more triangles and flipping
+
+
+        if (e === start) {
+          while (q = hullPrev[e], orient(x, y, coords[2 * q], coords[2 * q + 1], coords[2 * e], coords[2 * e + 1])) {
+            t = this._addTriangle(q, i, e, -1, hullTri[e], hullTri[q]);
+
+            this._legalize(t + 2);
+
+            hullTri[q] = t;
+            hullNext[e] = e; // mark as removed
+
+            hullSize--;
+            e = q;
+          }
+        } // update the hull indices
+
+
+        this._hullStart = hullPrev[i] = e;
+        hullNext[e] = hullPrev[n] = i;
+        hullNext[i] = n; // save the two new edges in the hash table
+
+        hullHash[this._hashKey(x, y)] = i;
+        hullHash[this._hashKey(coords[2 * e], coords[2 * e + 1])] = e;
+      }
+
+      this.hull = new Uint32Array(hullSize);
+
+      for (let i = 0, e = this._hullStart; i < hullSize; i++) {
+        this.hull[i] = e;
+        e = hullNext[e];
+      } // trim typed triangle mesh arrays
+
+
+      this.triangles = this._triangles.subarray(0, this.trianglesLen);
+      this.halfedges = this._halfedges.subarray(0, this.trianglesLen);
+    }
+
+    _hashKey(x, y) {
+      return Math.floor(pseudoAngle(x - this._cx, y - this._cy) * this._hashSize) % this._hashSize;
+    }
+
+    _legalize(a) {
+      const {
+        _triangles: triangles,
+        _halfedges: halfedges,
+        coords
+      } = this;
+      let i = 0;
+      let ar = 0; // recursion eliminated with a fixed-size stack
+
+      while (true) {
+        const b = halfedges[a];
+        /* if the pair of triangles doesn't satisfy the Delaunay condition
+         * (p1 is inside the circumcircle of [p0, pl, pr]), flip them,
+         * then do the same check/flip recursively for the new pair of triangles
+         *
+         *           pl                    pl
+         *          /||\                  /  \
+         *       al/ || \bl            al/    \a
+         *        /  ||  \              /      \
+         *       /  a||b  \    flip    /___ar___\
+         *     p0\   ||   /p1   =>   p0\---bl---/p1
+         *        \  ||  /              \      /
+         *       ar\ || /br             b\    /br
+         *          \||/                  \  /
+         *           pr                    pr
+         */
+
+        const a0 = a - a % 3;
+        ar = a0 + (a + 2) % 3;
+
+        if (b === -1) {
+          // convex hull edge
+          if (i === 0) break;
+          a = EDGE_STACK[--i];
+          continue;
+        }
+
+        const b0 = b - b % 3;
+        const al = a0 + (a + 1) % 3;
+        const bl = b0 + (b + 2) % 3;
+        const p0 = triangles[ar];
+        const pr = triangles[a];
+        const pl = triangles[al];
+        const p1 = triangles[bl];
+        const illegal = inCircle(coords[2 * p0], coords[2 * p0 + 1], coords[2 * pr], coords[2 * pr + 1], coords[2 * pl], coords[2 * pl + 1], coords[2 * p1], coords[2 * p1 + 1]);
+
+        if (illegal) {
+          triangles[a] = p1;
+          triangles[b] = p0;
+          const hbl = halfedges[bl]; // edge swapped on the other side of the hull (rare); fix the halfedge reference
+
+          if (hbl === -1) {
+            let e = this._hullStart;
+
+            do {
+              if (this._hullTri[e] === bl) {
+                this._hullTri[e] = a;
+                break;
+              }
+
+              e = this._hullPrev[e];
+            } while (e !== this._hullStart);
+          }
+
+          this._link(a, hbl);
+
+          this._link(b, halfedges[ar]);
+
+          this._link(ar, bl);
+
+          const br = b0 + (b + 1) % 3; // don't worry about hitting the cap: it can only happen on extremely degenerate input
+
+          if (i < EDGE_STACK.length) {
+            EDGE_STACK[i++] = br;
+          }
+        } else {
+          if (i === 0) break;
+          a = EDGE_STACK[--i];
+        }
+      }
+
+      return ar;
+    }
+
+    _link(a, b) {
+      this._halfedges[a] = b;
+      if (b !== -1) this._halfedges[b] = a;
+    } // add a new triangle given vertex indices and adjacent half-edge ids
+
+
+    _addTriangle(i0, i1, i2, a, b, c) {
+      const t = this.trianglesLen;
+      this._triangles[t] = i0;
+      this._triangles[t + 1] = i1;
+      this._triangles[t + 2] = i2;
+
+      this._link(t, a);
+
+      this._link(t + 1, b);
+
+      this._link(t + 2, c);
+
+      this.trianglesLen += 3;
+      return t;
+    }
+
+  } // monotonically increases with real angle, but doesn't need expensive trigonometry
+
+  function pseudoAngle(dx, dy) {
+    const p = dx / (Math.abs(dx) + Math.abs(dy));
+    return (dy > 0 ? 3 - p : 1 + p) / 4; // [0..1]
+  }
+
+  function dist(ax, ay, bx, by) {
+    const dx = ax - bx;
+    const dy = ay - by;
+    return dx * dx + dy * dy;
+  } // return 2d orientation sign if we're confident in it through J. Shewchuk's error bound check
+
+
+  function orientIfSure(px, py, rx, ry, qx, qy) {
+    const l = (ry - py) * (qx - px);
+    const r = (rx - px) * (qy - py);
+    return Math.abs(l - r) >= 3.3306690738754716e-16 * Math.abs(l + r) ? l - r : 0;
+  } // a more robust orientation test that's stable in a given triangle (to fix robustness issues)
+
+
+  function orient(rx, ry, qx, qy, px, py) {
+    const sign = orientIfSure(px, py, rx, ry, qx, qy) || orientIfSure(rx, ry, qx, qy, px, py) || orientIfSure(qx, qy, px, py, rx, ry);
+    return sign < 0;
+  }
+
+  function inCircle(ax, ay, bx, by, cx, cy, px, py) {
+    const dx = ax - px;
+    const dy = ay - py;
+    const ex = bx - px;
+    const ey = by - py;
+    const fx = cx - px;
+    const fy = cy - py;
+    const ap = dx * dx + dy * dy;
+    const bp = ex * ex + ey * ey;
+    const cp = fx * fx + fy * fy;
+    return dx * (ey * cp - bp * fy) - dy * (ex * cp - bp * fx) + ap * (ex * fy - ey * fx) < 0;
+  }
+
+  function circumradius(ax, ay, bx, by, cx, cy) {
+    const dx = bx - ax;
+    const dy = by - ay;
+    const ex = cx - ax;
+    const ey = cy - ay;
+    const bl = dx * dx + dy * dy;
+    const cl = ex * ex + ey * ey;
+    const d = 0.5 / (dx * ey - dy * ex);
+    const x = (ey * bl - dy * cl) * d;
+    const y = (dx * cl - ex * bl) * d;
+    return x * x + y * y;
+  }
+
+  function circumcenter(ax, ay, bx, by, cx, cy) {
+    const dx = bx - ax;
+    const dy = by - ay;
+    const ex = cx - ax;
+    const ey = cy - ay;
+    const bl = dx * dx + dy * dy;
+    const cl = ex * ex + ey * ey;
+    const d = 0.5 / (dx * ey - dy * ex);
+    const x = ax + (ey * bl - dy * cl) * d;
+    const y = ay + (dx * cl - ex * bl) * d;
+    return {
+      x,
+      y
+    };
+  }
+
+  function quicksort(ids, dists, left, right) {
+    if (right - left <= 20) {
+      for (let i = left + 1; i <= right; i++) {
+        const temp = ids[i];
+        const tempDist = dists[temp];
+        let j = i - 1;
+
+        while (j >= left && dists[ids[j]] > tempDist) ids[j + 1] = ids[j--];
+
+        ids[j + 1] = temp;
+      }
+    } else {
+      const median = left + right >> 1;
+      let i = left + 1;
+      let j = right;
+      swap(ids, median, i);
+      if (dists[ids[left]] > dists[ids[right]]) swap(ids, left, right);
+      if (dists[ids[i]] > dists[ids[right]]) swap(ids, i, right);
+      if (dists[ids[left]] > dists[ids[i]]) swap(ids, left, i);
+      const temp = ids[i];
+      const tempDist = dists[temp];
+
+      while (true) {
+        do i++; while (dists[ids[i]] < tempDist);
+
+        do j--; while (dists[ids[j]] > tempDist);
+
+        if (j < i) break;
+        swap(ids, i, j);
+      }
+
+      ids[left + 1] = ids[j];
+      ids[j] = temp;
+
+      if (right - i + 1 >= j - left) {
+        quicksort(ids, dists, i, right);
+        quicksort(ids, dists, left, j - 1);
+      } else {
+        quicksort(ids, dists, left, j - 1);
+        quicksort(ids, dists, i, right);
+      }
+    }
+  }
+
+  function swap(arr, i, j) {
+    const tmp = arr[i];
+    arr[i] = arr[j];
+    arr[j] = tmp;
+  }
+
+  function defaultGetX(p) {
+    return p[0];
+  }
+
+  function defaultGetY(p) {
+    return p[1];
+  }
+
+  const epsilon = 1e-6;
+  class Path {
+    constructor() {
+      this._x0 = this._y0 = // start of current subpath
+      this._x1 = this._y1 = null; // end of current subpath
+
+      this._ = "";
+    }
+
+    moveTo(x, y) {
+      this._ += `M${this._x0 = this._x1 = +x},${this._y0 = this._y1 = +y}`;
+    }
+
+    closePath() {
+      if (this._x1 !== null) {
+        this._x1 = this._x0, this._y1 = this._y0;
+        this._ += "Z";
+      }
+    }
+
+    lineTo(x, y) {
+      this._ += `L${this._x1 = +x},${this._y1 = +y}`;
+    }
+
+    arc(x, y, r) {
+      x = +x, y = +y, r = +r;
+      const x0 = x + r;
+      const y0 = y;
+      if (r < 0) throw new Error("negative radius");
+      if (this._x1 === null) this._ += `M${x0},${y0}`;else if (Math.abs(this._x1 - x0) > epsilon || Math.abs(this._y1 - y0) > epsilon) this._ += "L" + x0 + "," + y0;
+      if (!r) return;
+      this._ += `A${r},${r},0,1,1,${x - r},${y}A${r},${r},0,1,1,${this._x1 = x0},${this._y1 = y0}`;
+    }
+
+    rect(x, y, w, h) {
+      this._ += `M${this._x0 = this._x1 = +x},${this._y0 = this._y1 = +y}h${+w}v${+h}h${-w}Z`;
+    }
+
+    value() {
+      return this._ || null;
+    }
+
+  }
+
+  class Polygon {
+    constructor() {
+      this._ = [];
+    }
+
+    moveTo(x, y) {
+      this._.push([x, y]);
+    }
+
+    closePath() {
+      this._.push(this._[0].slice());
+    }
+
+    lineTo(x, y) {
+      this._.push([x, y]);
+    }
+
+    value() {
+      return this._.length ? this._ : null;
+    }
+
+  }
+
+  class Voronoi$1 {
+    constructor(delaunay, [xmin, ymin, xmax, ymax] = [0, 0, 960, 500]) {
+      if (!((xmax = +xmax) >= (xmin = +xmin)) || !((ymax = +ymax) >= (ymin = +ymin))) throw new Error("invalid bounds");
+      this.delaunay = delaunay;
+      this._circumcenters = new Float64Array(delaunay.points.length * 2);
+      this.vectors = new Float64Array(delaunay.points.length * 2);
+      this.xmax = xmax, this.xmin = xmin;
+      this.ymax = ymax, this.ymin = ymin;
+
+      this._init();
+    }
+
+    update() {
+      this.delaunay.update();
+
+      this._init();
+
+      return this;
+    }
+
+    _init() {
+      const {
+        delaunay: {
+          points,
+          hull,
+          triangles
+        },
+        vectors
+      } = this; // Compute circumcenters.
+
+      const circumcenters = this.circumcenters = this._circumcenters.subarray(0, triangles.length / 3 * 2);
+
+      for (let i = 0, j = 0, n = triangles.length, x, y; i < n; i += 3, j += 2) {
+        const t1 = triangles[i] * 2;
+        const t2 = triangles[i + 1] * 2;
+        const t3 = triangles[i + 2] * 2;
+        const x1 = points[t1];
+        const y1 = points[t1 + 1];
+        const x2 = points[t2];
+        const y2 = points[t2 + 1];
+        const x3 = points[t3];
+        const y3 = points[t3 + 1];
+        const dx = x2 - x1;
+        const dy = y2 - y1;
+        const ex = x3 - x1;
+        const ey = y3 - y1;
+        const bl = dx * dx + dy * dy;
+        const cl = ex * ex + ey * ey;
+        const ab = (dx * ey - dy * ex) * 2;
+
+        if (!ab) {
+          // degenerate case (collinear diagram)
+          x = (x1 + x3) / 2 - 1e8 * ey;
+          y = (y1 + y3) / 2 + 1e8 * ex;
+        } else if (Math.abs(ab) < 1e-8) {
+          // almost equal points (degenerate triangle)
+          x = (x1 + x3) / 2;
+          y = (y1 + y3) / 2;
+        } else {
+          const d = 1 / ab;
+          x = x1 + (ey * bl - dy * cl) * d;
+          y = y1 + (dx * cl - ex * bl) * d;
+        }
+
+        circumcenters[j] = x;
+        circumcenters[j + 1] = y;
+      } // Compute exterior cell rays.
+
+
+      let h = hull[hull.length - 1];
+      let p0,
+          p1 = h * 4;
+      let x0,
+          x1 = points[2 * h];
+      let y0,
+          y1 = points[2 * h + 1];
+      vectors.fill(0);
+
+      for (let i = 0; i < hull.length; ++i) {
+        h = hull[i];
+        p0 = p1, x0 = x1, y0 = y1;
+        p1 = h * 4, x1 = points[2 * h], y1 = points[2 * h + 1];
+        vectors[p0 + 2] = vectors[p1] = y0 - y1;
+        vectors[p0 + 3] = vectors[p1 + 1] = x1 - x0;
+      }
+    }
+
+    render(context) {
+      const buffer = context == null ? context = new Path() : undefined;
+      const {
+        delaunay: {
+          halfedges,
+          inedges,
+          hull
+        },
+        circumcenters,
+        vectors
+      } = this;
+      if (hull.length <= 1) return null;
+
+      for (let i = 0, n = halfedges.length; i < n; ++i) {
+        const j = halfedges[i];
+        if (j < i) continue;
+        const ti = Math.floor(i / 3) * 2;
+        const tj = Math.floor(j / 3) * 2;
+        const xi = circumcenters[ti];
+        const yi = circumcenters[ti + 1];
+        const xj = circumcenters[tj];
+        const yj = circumcenters[tj + 1];
+
+        this._renderSegment(xi, yi, xj, yj, context);
+      }
+
+      let h0,
+          h1 = hull[hull.length - 1];
+
+      for (let i = 0; i < hull.length; ++i) {
+        h0 = h1, h1 = hull[i];
+        const t = Math.floor(inedges[h1] / 3) * 2;
+        const x = circumcenters[t];
+        const y = circumcenters[t + 1];
+        const v = h0 * 4;
+
+        const p = this._project(x, y, vectors[v + 2], vectors[v + 3]);
+
+        if (p) this._renderSegment(x, y, p[0], p[1], context);
+      }
+
+      return buffer && buffer.value();
+    }
+
+    renderBounds(context) {
+      const buffer = context == null ? context = new Path() : undefined;
+      context.rect(this.xmin, this.ymin, this.xmax - this.xmin, this.ymax - this.ymin);
+      return buffer && buffer.value();
+    }
+
+    renderCell(i, context) {
+      const buffer = context == null ? context = new Path() : undefined;
+
+      const points = this._clip(i);
+
+      if (points === null || !points.length) return;
+      context.moveTo(points[0], points[1]);
+      let n = points.length;
+
+      while (points[0] === points[n - 2] && points[1] === points[n - 1] && n > 1) n -= 2;
+
+      for (let i = 2; i < n; i += 2) {
+        if (points[i] !== points[i - 2] || points[i + 1] !== points[i - 1]) context.lineTo(points[i], points[i + 1]);
+      }
+
+      context.closePath();
+      return buffer && buffer.value();
+    }
+
+    *cellPolygons() {
+      const {
+        delaunay: {
+          points
+        }
+      } = this;
+
+      for (let i = 0, n = points.length / 2; i < n; ++i) {
+        const cell = this.cellPolygon(i);
+        if (cell) cell.index = i, yield cell;
+      }
+    }
+
+    cellPolygon(i) {
+      const polygon = new Polygon();
+      this.renderCell(i, polygon);
+      return polygon.value();
+    }
+
+    _renderSegment(x0, y0, x1, y1, context) {
+      let S;
+
+      const c0 = this._regioncode(x0, y0);
+
+      const c1 = this._regioncode(x1, y1);
+
+      if (c0 === 0 && c1 === 0) {
+        context.moveTo(x0, y0);
+        context.lineTo(x1, y1);
+      } else if (S = this._clipSegment(x0, y0, x1, y1, c0, c1)) {
+        context.moveTo(S[0], S[1]);
+        context.lineTo(S[2], S[3]);
+      }
+    }
+
+    contains(i, x, y) {
+      if ((x = +x, x !== x) || (y = +y, y !== y)) return false;
+      return this.delaunay._step(i, x, y) === i;
+    }
+
+    *neighbors(i) {
+      const ci = this._clip(i);
+
+      if (ci) for (const j of this.delaunay.neighbors(i)) {
+        const cj = this._clip(j); // find the common edge
+
+
+        if (cj) loop: for (let ai = 0, li = ci.length; ai < li; ai += 2) {
+          for (let aj = 0, lj = cj.length; aj < lj; aj += 2) {
+            if (ci[ai] == cj[aj] && ci[ai + 1] == cj[aj + 1] && ci[(ai + 2) % li] == cj[(aj + lj - 2) % lj] && ci[(ai + 3) % li] == cj[(aj + lj - 1) % lj]) {
+              yield j;
+              break loop;
+            }
+          }
+        }
+      }
+    }
+
+    _cell(i) {
+      const {
+        circumcenters,
+        delaunay: {
+          inedges,
+          halfedges,
+          triangles
+        }
+      } = this;
+      const e0 = inedges[i];
+      if (e0 === -1) return null; // coincident point
+
+      const points = [];
+      let e = e0;
+
+      do {
+        const t = Math.floor(e / 3);
+        points.push(circumcenters[t * 2], circumcenters[t * 2 + 1]);
+        e = e % 3 === 2 ? e - 2 : e + 1;
+        if (triangles[e] !== i) break; // bad triangulation
+
+        e = halfedges[e];
+      } while (e !== e0 && e !== -1);
+
+      return points;
+    }
+
+    _clip(i) {
+      // degenerate case (1 valid point: return the box)
+      if (i === 0 && this.delaunay.hull.length === 1) {
+        return [this.xmax, this.ymin, this.xmax, this.ymax, this.xmin, this.ymax, this.xmin, this.ymin];
+      }
+
+      const points = this._cell(i);
+
+      if (points === null) return null;
+      const {
+        vectors: V
+      } = this;
+      const v = i * 4;
+      return V[v] || V[v + 1] ? this._clipInfinite(i, points, V[v], V[v + 1], V[v + 2], V[v + 3]) : this._clipFinite(i, points);
+    }
+
+    _clipFinite(i, points) {
+      const n = points.length;
+      let P = null;
+      let x0,
+          y0,
+          x1 = points[n - 2],
+          y1 = points[n - 1];
+
+      let c0,
+          c1 = this._regioncode(x1, y1);
+
+      let e0, e1;
+
+      for (let j = 0; j < n; j += 2) {
+        x0 = x1, y0 = y1, x1 = points[j], y1 = points[j + 1];
+        c0 = c1, c1 = this._regioncode(x1, y1);
+
+        if (c0 === 0 && c1 === 0) {
+          e0 = e1, e1 = 0;
+          if (P) P.push(x1, y1);else P = [x1, y1];
+        } else {
+          let S, sx0, sy0, sx1, sy1;
+
+          if (c0 === 0) {
+            if ((S = this._clipSegment(x0, y0, x1, y1, c0, c1)) === null) continue;
+            [sx0, sy0, sx1, sy1] = S;
+          } else {
+            if ((S = this._clipSegment(x1, y1, x0, y0, c1, c0)) === null) continue;
+            [sx1, sy1, sx0, sy0] = S;
+            e0 = e1, e1 = this._edgecode(sx0, sy0);
+            if (e0 && e1) this._edge(i, e0, e1, P, P.length);
+            if (P) P.push(sx0, sy0);else P = [sx0, sy0];
+          }
+
+          e0 = e1, e1 = this._edgecode(sx1, sy1);
+          if (e0 && e1) this._edge(i, e0, e1, P, P.length);
+          if (P) P.push(sx1, sy1);else P = [sx1, sy1];
+        }
+      }
+
+      if (P) {
+        e0 = e1, e1 = this._edgecode(P[0], P[1]);
+        if (e0 && e1) this._edge(i, e0, e1, P, P.length);
+      } else if (this.contains(i, (this.xmin + this.xmax) / 2, (this.ymin + this.ymax) / 2)) {
+        return [this.xmax, this.ymin, this.xmax, this.ymax, this.xmin, this.ymax, this.xmin, this.ymin];
+      }
+
+      return P;
+    }
+
+    _clipSegment(x0, y0, x1, y1, c0, c1) {
+      while (true) {
+        if (c0 === 0 && c1 === 0) return [x0, y0, x1, y1];
+        if (c0 & c1) return null;
+        let x,
+            y,
+            c = c0 || c1;
+        if (c & 0b1000) x = x0 + (x1 - x0) * (this.ymax - y0) / (y1 - y0), y = this.ymax;else if (c & 0b0100) x = x0 + (x1 - x0) * (this.ymin - y0) / (y1 - y0), y = this.ymin;else if (c & 0b0010) y = y0 + (y1 - y0) * (this.xmax - x0) / (x1 - x0), x = this.xmax;else y = y0 + (y1 - y0) * (this.xmin - x0) / (x1 - x0), x = this.xmin;
+        if (c0) x0 = x, y0 = y, c0 = this._regioncode(x0, y0);else x1 = x, y1 = y, c1 = this._regioncode(x1, y1);
+      }
+    }
+
+    _clipInfinite(i, points, vx0, vy0, vxn, vyn) {
+      let P = Array.from(points),
+          p;
+      if (p = this._project(P[0], P[1], vx0, vy0)) P.unshift(p[0], p[1]);
+      if (p = this._project(P[P.length - 2], P[P.length - 1], vxn, vyn)) P.push(p[0], p[1]);
+
+      if (P = this._clipFinite(i, P)) {
+        for (let j = 0, n = P.length, c0, c1 = this._edgecode(P[n - 2], P[n - 1]); j < n; j += 2) {
+          c0 = c1, c1 = this._edgecode(P[j], P[j + 1]);
+          if (c0 && c1) j = this._edge(i, c0, c1, P, j), n = P.length;
+        }
+      } else if (this.contains(i, (this.xmin + this.xmax) / 2, (this.ymin + this.ymax) / 2)) {
+        P = [this.xmin, this.ymin, this.xmax, this.ymin, this.xmax, this.ymax, this.xmin, this.ymax];
+      }
+
+      return P;
+    }
+
+    _edge(i, e0, e1, P, j) {
+      while (e0 !== e1) {
+        let x, y;
+
+        switch (e0) {
+          case 0b0101:
+            e0 = 0b0100;
+            continue;
+          // top-left
+
+          case 0b0100:
+            e0 = 0b0110, x = this.xmax, y = this.ymin;
+            break;
+          // top
+
+          case 0b0110:
+            e0 = 0b0010;
+            continue;
+          // top-right
+
+          case 0b0010:
+            e0 = 0b1010, x = this.xmax, y = this.ymax;
+            break;
+          // right
+
+          case 0b1010:
+            e0 = 0b1000;
+            continue;
+          // bottom-right
+
+          case 0b1000:
+            e0 = 0b1001, x = this.xmin, y = this.ymax;
+            break;
+          // bottom
+
+          case 0b1001:
+            e0 = 0b0001;
+            continue;
+          // bottom-left
+
+          case 0b0001:
+            e0 = 0b0101, x = this.xmin, y = this.ymin;
+            break;
+          // left
+        }
+
+        if ((P[j] !== x || P[j + 1] !== y) && this.contains(i, x, y)) {
+          P.splice(j, 0, x, y), j += 2;
+        }
+      }
+
+      if (P.length > 4) {
+        for (let i = 0; i < P.length; i += 2) {
+          const j = (i + 2) % P.length,
+                k = (i + 4) % P.length;
+          if (P[i] === P[j] && P[j] === P[k] || P[i + 1] === P[j + 1] && P[j + 1] === P[k + 1]) P.splice(j, 2), i -= 2;
+        }
+      }
+
+      return j;
+    }
+
+    _project(x0, y0, vx, vy) {
+      let t = Infinity,
+          c,
+          x,
+          y;
+
+      if (vy < 0) {
+        // top
+        if (y0 <= this.ymin) return null;
+        if ((c = (this.ymin - y0) / vy) < t) y = this.ymin, x = x0 + (t = c) * vx;
+      } else if (vy > 0) {
+        // bottom
+        if (y0 >= this.ymax) return null;
+        if ((c = (this.ymax - y0) / vy) < t) y = this.ymax, x = x0 + (t = c) * vx;
+      }
+
+      if (vx > 0) {
+        // right
+        if (x0 >= this.xmax) return null;
+        if ((c = (this.xmax - x0) / vx) < t) x = this.xmax, y = y0 + (t = c) * vy;
+      } else if (vx < 0) {
+        // left
+        if (x0 <= this.xmin) return null;
+        if ((c = (this.xmin - x0) / vx) < t) x = this.xmin, y = y0 + (t = c) * vy;
+      }
+
+      return [x, y];
+    }
+
+    _edgecode(x, y) {
+      return (x === this.xmin ? 0b0001 : x === this.xmax ? 0b0010 : 0b0000) | (y === this.ymin ? 0b0100 : y === this.ymax ? 0b1000 : 0b0000);
+    }
+
+    _regioncode(x, y) {
+      return (x < this.xmin ? 0b0001 : x > this.xmax ? 0b0010 : 0b0000) | (y < this.ymin ? 0b0100 : y > this.ymax ? 0b1000 : 0b0000);
+    }
+
+  }
+
+  const tau = 2 * Math.PI,
+        pow = Math.pow;
+
+  function pointX(p) {
+    return p[0];
+  }
+
+  function pointY(p) {
+    return p[1];
+  } // A triangulation is collinear if all its triangles have a non-null area
+
+
+  function collinear(d) {
+    const {
+      triangles,
+      coords
+    } = d;
+
+    for (let i = 0; i < triangles.length; i += 3) {
+      const a = 2 * triangles[i],
+            b = 2 * triangles[i + 1],
+            c = 2 * triangles[i + 2],
+            cross = (coords[c] - coords[a]) * (coords[b + 1] - coords[a + 1]) - (coords[b] - coords[a]) * (coords[c + 1] - coords[a + 1]);
+      if (cross > 1e-10) return false;
+    }
+
+    return true;
+  }
+
+  function jitter(x, y, r) {
+    return [x + Math.sin(x + y) * r, y + Math.cos(x - y) * r];
+  }
+
+  class Delaunay {
+    static from(points, fx = pointX, fy = pointY, that) {
+      return new Delaunay("length" in points ? flatArray(points, fx, fy, that) : Float64Array.from(flatIterable(points, fx, fy, that)));
+    }
+
+    constructor(points) {
+      this._delaunator = new Delaunator(points);
+      this.inedges = new Int32Array(points.length / 2);
+      this._hullIndex = new Int32Array(points.length / 2);
+      this.points = this._delaunator.coords;
+
+      this._init();
+    }
+
+    update() {
+      this._delaunator.update();
+
+      this._init();
+
+      return this;
+    }
+
+    _init() {
+      const d = this._delaunator,
+            points = this.points; // check for collinear
+
+      if (d.hull && d.hull.length > 2 && collinear(d)) {
+        this.collinear = Int32Array.from({
+          length: points.length / 2
+        }, (_, i) => i).sort((i, j) => points[2 * i] - points[2 * j] || points[2 * i + 1] - points[2 * j + 1]); // for exact neighbors
+
+        const e = this.collinear[0],
+              f = this.collinear[this.collinear.length - 1],
+              bounds = [points[2 * e], points[2 * e + 1], points[2 * f], points[2 * f + 1]],
+              r = 1e-8 * Math.hypot(bounds[3] - bounds[1], bounds[2] - bounds[0]);
+
+        for (let i = 0, n = points.length / 2; i < n; ++i) {
+          const p = jitter(points[2 * i], points[2 * i + 1], r);
+          points[2 * i] = p[0];
+          points[2 * i + 1] = p[1];
+        }
+
+        this._delaunator = new Delaunator(points);
+      } else {
+        delete this.collinear;
+      }
+
+      const halfedges = this.halfedges = this._delaunator.halfedges;
+      const hull = this.hull = this._delaunator.hull;
+      const triangles = this.triangles = this._delaunator.triangles;
+      const inedges = this.inedges.fill(-1);
+
+      const hullIndex = this._hullIndex.fill(-1); // Compute an index from each point to an (arbitrary) incoming halfedge
+      // Used to give the first neighbor of each point; for this reason,
+      // on the hull we give priority to exterior halfedges
+
+
+      for (let e = 0, n = halfedges.length; e < n; ++e) {
+        const p = triangles[e % 3 === 2 ? e - 2 : e + 1];
+        if (halfedges[e] === -1 || inedges[p] === -1) inedges[p] = e;
+      }
+
+      for (let i = 0, n = hull.length; i < n; ++i) {
+        hullIndex[hull[i]] = i;
+      } // degenerate case: 1 or 2 (distinct) points
+
+
+      if (hull.length <= 2 && hull.length > 0) {
+        this.triangles = new Int32Array(3).fill(-1);
+        this.halfedges = new Int32Array(3).fill(-1);
+        this.triangles[0] = hull[0];
+        this.triangles[1] = hull[1];
+        this.triangles[2] = hull[1];
+        inedges[hull[0]] = 1;
+        if (hull.length === 2) inedges[hull[1]] = 0;
+      }
+    }
+
+    voronoi(bounds) {
+      return new Voronoi$1(this, bounds);
+    }
+
+    *neighbors(i) {
+      const {
+        inedges,
+        hull,
+        _hullIndex,
+        halfedges,
+        triangles,
+        collinear
+      } = this; // degenerate case with several collinear points
+
+      if (collinear) {
+        const l = collinear.indexOf(i);
+        if (l > 0) yield collinear[l - 1];
+        if (l < collinear.length - 1) yield collinear[l + 1];
+        return;
+      }
+
+      const e0 = inedges[i];
+      if (e0 === -1) return; // coincident point
+
+      let e = e0,
+          p0 = -1;
+
+      do {
+        yield p0 = triangles[e];
+        e = e % 3 === 2 ? e - 2 : e + 1;
+        if (triangles[e] !== i) return; // bad triangulation
+
+        e = halfedges[e];
+
+        if (e === -1) {
+          const p = hull[(_hullIndex[i] + 1) % hull.length];
+          if (p !== p0) yield p;
+          return;
+        }
+      } while (e !== e0);
+    }
+
+    find(x, y, i = 0) {
+      if ((x = +x, x !== x) || (y = +y, y !== y)) return -1;
+      const i0 = i;
+      let c;
+
+      while ((c = this._step(i, x, y)) >= 0 && c !== i && c !== i0) i = c;
+
+      return c;
+    }
+
+    _step(i, x, y) {
+      const {
+        inedges,
+        hull,
+        _hullIndex,
+        halfedges,
+        triangles,
+        points
+      } = this;
+      if (inedges[i] === -1 || !points.length) return (i + 1) % (points.length >> 1);
+      let c = i;
+      let dc = pow(x - points[i * 2], 2) + pow(y - points[i * 2 + 1], 2);
+      const e0 = inedges[i];
+      let e = e0;
+
+      do {
+        let t = triangles[e];
+        const dt = pow(x - points[t * 2], 2) + pow(y - points[t * 2 + 1], 2);
+        if (dt < dc) dc = dt, c = t;
+        e = e % 3 === 2 ? e - 2 : e + 1;
+        if (triangles[e] !== i) break; // bad triangulation
+
+        e = halfedges[e];
+
+        if (e === -1) {
+          e = hull[(_hullIndex[i] + 1) % hull.length];
+
+          if (e !== t) {
+            if (pow(x - points[e * 2], 2) + pow(y - points[e * 2 + 1], 2) < dc) return e;
+          }
+
+          break;
+        }
+      } while (e !== e0);
+
+      return c;
+    }
+
+    render(context) {
+      const buffer = context == null ? context = new Path() : undefined;
+      const {
+        points,
+        halfedges,
+        triangles
+      } = this;
+
+      for (let i = 0, n = halfedges.length; i < n; ++i) {
+        const j = halfedges[i];
+        if (j < i) continue;
+        const ti = triangles[i] * 2;
+        const tj = triangles[j] * 2;
+        context.moveTo(points[ti], points[ti + 1]);
+        context.lineTo(points[tj], points[tj + 1]);
+      }
+
+      this.renderHull(context);
+      return buffer && buffer.value();
+    }
+
+    renderPoints(context, r = 2) {
+      const buffer = context == null ? context = new Path() : undefined;
+      const {
+        points
+      } = this;
+
+      for (let i = 0, n = points.length; i < n; i += 2) {
+        const x = points[i],
+              y = points[i + 1];
+        context.moveTo(x + r, y);
+        context.arc(x, y, r, 0, tau);
+      }
+
+      return buffer && buffer.value();
+    }
+
+    renderHull(context) {
+      const buffer = context == null ? context = new Path() : undefined;
+      const {
+        hull,
+        points
+      } = this;
+      const h = hull[0] * 2,
+            n = hull.length;
+      context.moveTo(points[h], points[h + 1]);
+
+      for (let i = 1; i < n; ++i) {
+        const h = 2 * hull[i];
+        context.lineTo(points[h], points[h + 1]);
+      }
+
+      context.closePath();
+      return buffer && buffer.value();
+    }
+
+    hullPolygon() {
+      const polygon = new Polygon();
+      this.renderHull(polygon);
+      return polygon.value();
+    }
+
+    renderTriangle(i, context) {
+      const buffer = context == null ? context = new Path() : undefined;
+      const {
+        points,
+        triangles
+      } = this;
+      const t0 = triangles[i *= 3] * 2;
+      const t1 = triangles[i + 1] * 2;
+      const t2 = triangles[i + 2] * 2;
+      context.moveTo(points[t0], points[t0 + 1]);
+      context.lineTo(points[t1], points[t1 + 1]);
+      context.lineTo(points[t2], points[t2 + 1]);
+      context.closePath();
+      return buffer && buffer.value();
+    }
+
+    *trianglePolygons() {
+      const {
+        triangles
+      } = this;
+
+      for (let i = 0, n = triangles.length / 3; i < n; ++i) {
+        yield this.trianglePolygon(i);
+      }
+    }
+
+    trianglePolygon(i) {
+      const polygon = new Polygon();
+      this.renderTriangle(i, polygon);
+      return polygon.value();
+    }
+
+  }
+
+  function flatArray(points, fx, fy, that) {
+    const n = points.length;
+    const array = new Float64Array(n * 2);
+
+    for (let i = 0; i < n; ++i) {
+      const p = points[i];
+      array[i * 2] = fx.call(that, p, i, points);
+      array[i * 2 + 1] = fy.call(that, p, i, points);
+    }
+
+    return array;
+  }
+
+  function* flatIterable(points, fx, fy, that) {
+    let i = 0;
+
+    for (const p of points) {
+      yield fx.call(that, p, i, points);
+      yield fy.call(that, p, i, points);
+      ++i;
+    }
+  }
+
+  function Voronoi(params) {
+    Transform.call(this, null, params);
+  }
+
+  Voronoi.Definition = {
+    'type': 'Voronoi',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'x',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'y',
+      'type': 'field',
+      'required': true
+    }, {
+      'name': 'size',
+      'type': 'number',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'extent',
+      'type': 'array',
+      'array': true,
+      'length': 2,
+      'default': [[-1e5, -1e5], [1e5, 1e5]],
+      'content': {
+        'type': 'number',
+        'array': true,
+        'length': 2
+      }
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'default': 'path'
+    }]
+  };
+  const defaultExtent = [-1e5, -1e5, 1e5, 1e5];
+  inherits(Voronoi, Transform, {
+    transform(_, pulse) {
+      const as = _.as || 'path',
+            data = pulse.source; // nothing to do if no data
+
+      if (!data || !data.length) return pulse; // configure and construct voronoi diagram
+
+      let s = _.size;
+      s = s ? [0, 0, s[0], s[1]] : (s = _.extent) ? [s[0][0], s[0][1], s[1][0], s[1][1]] : defaultExtent;
+      const voronoi = this.value = Delaunay.from(data, _.x, _.y).voronoi(s); // map polygons to paths
+
+      for (let i = 0, n = data.length; i < n; ++i) {
+        const polygon = voronoi.cellPolygon(i);
+        data[i][as] = polygon ? toPathString(polygon) : null;
+      }
+
+      return pulse.reflow(_.modified()).modifies(as);
+    }
+
+  }); // suppress duplicated end point vertices
+
+  function toPathString(p) {
+    const x = p[0][0],
+          y = p[0][1];
+    let n = p.length - 1;
+
+    for (; p[n][0] === x && p[n][1] === y; --n);
+
+    return 'M' + p.slice(0, n + 1).join('L') + 'Z';
+  }
+
+  var voronoi = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    voronoi: Voronoi
+  });
+
+  /*
+  Copyright (c) 2013, Jason Davies.
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, this
+      list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+
+    * The name Jason Davies may not be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL JASON DAVIES BE LIABLE FOR ANY DIRECT, INDIRECT,
+  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+  OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  */
+  // Word cloud layout by Jason Davies, https://www.jasondavies.com/wordcloud/
+  // Algorithm due to Jonathan Feinberg, http://static.mrfeinberg.com/bv_ch03.pdf
+
+  var cloudRadians = Math.PI / 180,
+      cw = 1 << 11 >> 5,
+      ch = 1 << 11;
+
+  function cloud() {
+    var size = [256, 256],
+        text,
+        font,
+        fontSize,
+        fontStyle,
+        fontWeight,
+        rotate,
+        padding,
+        spiral = archimedeanSpiral,
+        words = [],
+        random = Math.random,
+        cloud = {};
+
+    cloud.layout = function () {
+      var contextAndRatio = getContext(domCanvas()),
+          board = zeroArray((size[0] >> 5) * size[1]),
+          bounds = null,
+          n = words.length,
+          i = -1,
+          tags = [],
+          data = words.map(d => ({
+        text: text(d),
+        font: font(d),
+        style: fontStyle(d),
+        weight: fontWeight(d),
+        rotate: rotate(d),
+        size: ~~(fontSize(d) + 1e-14),
+        padding: padding(d),
+        xoff: 0,
+        yoff: 0,
+        x1: 0,
+        y1: 0,
+        x0: 0,
+        y0: 0,
+        hasText: false,
+        sprite: null,
+        datum: d
+      })).sort((a, b) => b.size - a.size);
+
+      while (++i < n) {
+        var d = data[i];
+        d.x = size[0] * (random() + .5) >> 1;
+        d.y = size[1] * (random() + .5) >> 1;
+        cloudSprite(contextAndRatio, d, data, i);
+
+        if (d.hasText && place(board, d, bounds)) {
+          tags.push(d);
+          if (bounds) cloudBounds(bounds, d);else bounds = [{
+            x: d.x + d.x0,
+            y: d.y + d.y0
+          }, {
+            x: d.x + d.x1,
+            y: d.y + d.y1
+          }]; // Temporary hack
+
+          d.x -= size[0] >> 1;
+          d.y -= size[1] >> 1;
+        }
+      }
+
+      return tags;
+    };
+
+    function getContext(canvas) {
+      canvas.width = canvas.height = 1;
+      var ratio = Math.sqrt(canvas.getContext('2d').getImageData(0, 0, 1, 1).data.length >> 2);
+      canvas.width = (cw << 5) / ratio;
+      canvas.height = ch / ratio;
+      var context = canvas.getContext('2d');
+      context.fillStyle = context.strokeStyle = 'red';
+      context.textAlign = 'center';
+      return {
+        context: context,
+        ratio: ratio
+      };
+    }
+
+    function place(board, tag, bounds) {
+      var startX = tag.x,
+          startY = tag.y,
+          maxDelta = Math.sqrt(size[0] * size[0] + size[1] * size[1]),
+          s = spiral(size),
+          dt = random() < .5 ? 1 : -1,
+          t = -dt,
+          dxdy,
+          dx,
+          dy;
+
+      while (dxdy = s(t += dt)) {
+        dx = ~~dxdy[0];
+        dy = ~~dxdy[1];
+        if (Math.min(Math.abs(dx), Math.abs(dy)) >= maxDelta) break;
+        tag.x = startX + dx;
+        tag.y = startY + dy;
+        if (tag.x + tag.x0 < 0 || tag.y + tag.y0 < 0 || tag.x + tag.x1 > size[0] || tag.y + tag.y1 > size[1]) continue; // TODO only check for collisions within current bounds.
+
+        if (!bounds || !cloudCollide(tag, board, size[0])) {
+          if (!bounds || collideRects(tag, bounds)) {
+            var sprite = tag.sprite,
+                w = tag.width >> 5,
+                sw = size[0] >> 5,
+                lx = tag.x - (w << 4),
+                sx = lx & 0x7f,
+                msx = 32 - sx,
+                h = tag.y1 - tag.y0,
+                x = (tag.y + tag.y0) * sw + (lx >> 5),
+                last;
+
+            for (var j = 0; j < h; j++) {
+              last = 0;
+
+              for (var i = 0; i <= w; i++) {
+                board[x + i] |= last << msx | (i < w ? (last = sprite[j * w + i]) >>> sx : 0);
+              }
+
+              x += sw;
+            }
+
+            tag.sprite = null;
+            return true;
+          }
+        }
+      }
+
+      return false;
+    }
+
+    cloud.words = function (_) {
+      if (arguments.length) {
+        words = _;
+        return cloud;
+      } else {
+        return words;
+      }
+    };
+
+    cloud.size = function (_) {
+      if (arguments.length) {
+        size = [+_[0], +_[1]];
+        return cloud;
+      } else {
+        return size;
+      }
+    };
+
+    cloud.font = function (_) {
+      if (arguments.length) {
+        font = functor(_);
+        return cloud;
+      } else {
+        return font;
+      }
+    };
+
+    cloud.fontStyle = function (_) {
+      if (arguments.length) {
+        fontStyle = functor(_);
+        return cloud;
+      } else {
+        return fontStyle;
+      }
+    };
+
+    cloud.fontWeight = function (_) {
+      if (arguments.length) {
+        fontWeight = functor(_);
+        return cloud;
+      } else {
+        return fontWeight;
+      }
+    };
+
+    cloud.rotate = function (_) {
+      if (arguments.length) {
+        rotate = functor(_);
+        return cloud;
+      } else {
+        return rotate;
+      }
+    };
+
+    cloud.text = function (_) {
+      if (arguments.length) {
+        text = functor(_);
+        return cloud;
+      } else {
+        return text;
+      }
+    };
+
+    cloud.spiral = function (_) {
+      if (arguments.length) {
+        spiral = spirals[_] || _;
+        return cloud;
+      } else {
+        return spiral;
+      }
+    };
+
+    cloud.fontSize = function (_) {
+      if (arguments.length) {
+        fontSize = functor(_);
+        return cloud;
+      } else {
+        return fontSize;
+      }
+    };
+
+    cloud.padding = function (_) {
+      if (arguments.length) {
+        padding = functor(_);
+        return cloud;
+      } else {
+        return padding;
+      }
+    };
+
+    cloud.random = function (_) {
+      if (arguments.length) {
+        random = _;
+        return cloud;
+      } else {
+        return random;
+      }
+    };
+
+    return cloud;
+  } // Fetches a monochrome sprite bitmap for the specified text.
+  // Load in batches for speed.
+
+
+  function cloudSprite(contextAndRatio, d, data, di) {
+    if (d.sprite) return;
+    var c = contextAndRatio.context,
+        ratio = contextAndRatio.ratio;
+    c.clearRect(0, 0, (cw << 5) / ratio, ch / ratio);
+    var x = 0,
+        y = 0,
+        maxh = 0,
+        n = data.length,
+        w,
+        w32,
+        h,
+        i,
+        j;
+    --di;
+
+    while (++di < n) {
+      d = data[di];
+      c.save();
+      c.font = d.style + ' ' + d.weight + ' ' + ~~((d.size + 1) / ratio) + 'px ' + d.font;
+      w = c.measureText(d.text + 'm').width * ratio;
+      h = d.size << 1;
+
+      if (d.rotate) {
+        var sr = Math.sin(d.rotate * cloudRadians),
+            cr = Math.cos(d.rotate * cloudRadians),
+            wcr = w * cr,
+            wsr = w * sr,
+            hcr = h * cr,
+            hsr = h * sr;
+        w = Math.max(Math.abs(wcr + hsr), Math.abs(wcr - hsr)) + 0x1f >> 5 << 5;
+        h = ~~Math.max(Math.abs(wsr + hcr), Math.abs(wsr - hcr));
+      } else {
+        w = w + 0x1f >> 5 << 5;
+      }
+
+      if (h > maxh) maxh = h;
+
+      if (x + w >= cw << 5) {
+        x = 0;
+        y += maxh;
+        maxh = 0;
+      }
+
+      if (y + h >= ch) break;
+      c.translate((x + (w >> 1)) / ratio, (y + (h >> 1)) / ratio);
+      if (d.rotate) c.rotate(d.rotate * cloudRadians);
+      c.fillText(d.text, 0, 0);
+
+      if (d.padding) {
+        c.lineWidth = 2 * d.padding;
+        c.strokeText(d.text, 0, 0);
+      }
+
+      c.restore();
+      d.width = w;
+      d.height = h;
+      d.xoff = x;
+      d.yoff = y;
+      d.x1 = w >> 1;
+      d.y1 = h >> 1;
+      d.x0 = -d.x1;
+      d.y0 = -d.y1;
+      d.hasText = true;
+      x += w;
+    }
+
+    var pixels = c.getImageData(0, 0, (cw << 5) / ratio, ch / ratio).data,
+        sprite = [];
+
+    while (--di >= 0) {
+      d = data[di];
+      if (!d.hasText) continue;
+      w = d.width;
+      w32 = w >> 5;
+      h = d.y1 - d.y0; // Zero the buffer
+
+      for (i = 0; i < h * w32; i++) sprite[i] = 0;
+
+      x = d.xoff;
+      if (x == null) return;
+      y = d.yoff;
+      var seen = 0,
+          seenRow = -1;
+
+      for (j = 0; j < h; j++) {
+        for (i = 0; i < w; i++) {
+          var k = w32 * j + (i >> 5),
+              m = pixels[(y + j) * (cw << 5) + (x + i) << 2] ? 1 << 31 - i % 32 : 0;
+          sprite[k] |= m;
+          seen |= m;
+        }
+
+        if (seen) seenRow = j;else {
+          d.y0++;
+          h--;
+          j--;
+          y++;
+        }
+      }
+
+      d.y1 = d.y0 + seenRow;
+      d.sprite = sprite.slice(0, (d.y1 - d.y0) * w32);
+    }
+  } // Use mask-based collision detection.
+
+
+  function cloudCollide(tag, board, sw) {
+    sw >>= 5;
+    var sprite = tag.sprite,
+        w = tag.width >> 5,
+        lx = tag.x - (w << 4),
+        sx = lx & 0x7f,
+        msx = 32 - sx,
+        h = tag.y1 - tag.y0,
+        x = (tag.y + tag.y0) * sw + (lx >> 5),
+        last;
+
+    for (var j = 0; j < h; j++) {
+      last = 0;
+
+      for (var i = 0; i <= w; i++) {
+        if ((last << msx | (i < w ? (last = sprite[j * w + i]) >>> sx : 0)) & board[x + i]) return true;
+      }
+
+      x += sw;
+    }
+
+    return false;
+  }
+
+  function cloudBounds(bounds, d) {
+    var b0 = bounds[0],
+        b1 = bounds[1];
+    if (d.x + d.x0 < b0.x) b0.x = d.x + d.x0;
+    if (d.y + d.y0 < b0.y) b0.y = d.y + d.y0;
+    if (d.x + d.x1 > b1.x) b1.x = d.x + d.x1;
+    if (d.y + d.y1 > b1.y) b1.y = d.y + d.y1;
+  }
+
+  function collideRects(a, b) {
+    return a.x + a.x1 > b[0].x && a.x + a.x0 < b[1].x && a.y + a.y1 > b[0].y && a.y + a.y0 < b[1].y;
+  }
+
+  function archimedeanSpiral(size) {
+    var e = size[0] / size[1];
+    return function (t) {
+      return [e * (t *= .1) * Math.cos(t), t * Math.sin(t)];
+    };
+  }
+
+  function rectangularSpiral(size) {
+    var dy = 4,
+        dx = dy * size[0] / size[1],
+        x = 0,
+        y = 0;
+    return function (t) {
+      var sign = t < 0 ? -1 : 1; // See triangular numbers: T_n = n * (n + 1) / 2.
+
+      switch (Math.sqrt(1 + 4 * sign * t) - sign & 3) {
+        case 0:
+          x += dx;
+          break;
+
+        case 1:
+          y += dy;
+          break;
+
+        case 2:
+          x -= dx;
+          break;
+
+        default:
+          y -= dy;
+          break;
+      }
+
+      return [x, y];
+    };
+  } // TODO reuse arrays?
+
+
+  function zeroArray(n) {
+    var a = [],
+        i = -1;
+
+    while (++i < n) a[i] = 0;
+
+    return a;
+  }
+
+  function functor(d) {
+    return typeof d === 'function' ? d : function () {
+      return d;
+    };
+  }
+
+  var spirals = {
+    archimedean: archimedeanSpiral,
+    rectangular: rectangularSpiral
+  };
+  const Output = ['x', 'y', 'font', 'fontSize', 'fontStyle', 'fontWeight', 'angle'];
+  const Params$1 = ['text', 'font', 'rotate', 'fontSize', 'fontStyle', 'fontWeight'];
+
+  function Wordcloud(params) {
+    Transform.call(this, cloud(), params);
+  }
+
+  Wordcloud.Definition = {
+    'type': 'Wordcloud',
+    'metadata': {
+      'modifies': true
+    },
+    'params': [{
+      'name': 'size',
+      'type': 'number',
+      'array': true,
+      'length': 2
+    }, {
+      'name': 'font',
+      'type': 'string',
+      'expr': true,
+      'default': 'sans-serif'
+    }, {
+      'name': 'fontStyle',
+      'type': 'string',
+      'expr': true,
+      'default': 'normal'
+    }, {
+      'name': 'fontWeight',
+      'type': 'string',
+      'expr': true,
+      'default': 'normal'
+    }, {
+      'name': 'fontSize',
+      'type': 'number',
+      'expr': true,
+      'default': 14
+    }, {
+      'name': 'fontSizeRange',
+      'type': 'number',
+      'array': 'nullable',
+      'default': [10, 50]
+    }, {
+      'name': 'rotate',
+      'type': 'number',
+      'expr': true,
+      'default': 0
+    }, {
+      'name': 'text',
+      'type': 'field'
+    }, {
+      'name': 'spiral',
+      'type': 'string',
+      'values': ['archimedean', 'rectangular']
+    }, {
+      'name': 'padding',
+      'type': 'number',
+      'expr': true
+    }, {
+      'name': 'as',
+      'type': 'string',
+      'array': true,
+      'length': 7,
+      'default': Output
+    }]
+  };
+  inherits(Wordcloud, Transform, {
+    transform(_, pulse) {
+      if (_.size && !(_.size[0] && _.size[1])) {
+        error('Wordcloud size dimensions must be non-zero.');
+      }
+
+      function modp(param) {
+        const p = _[param];
+        return isFunction(p) && pulse.modified(p.fields);
+      }
+
+      const mod = _.modified();
+
+      if (!(mod || pulse.changed(pulse.ADD_REM) || Params$1.some(modp))) return;
+      const data = pulse.materialize(pulse.SOURCE).source,
+            layout = this.value,
+            as = _.as || Output;
+      let fontSize = _.fontSize || 14,
+          range;
+      isFunction(fontSize) ? range = _.fontSizeRange : fontSize = constant$4(fontSize); // create font size scaling function as needed
+
+      if (range) {
+        const fsize = fontSize,
+              sizeScale = scale$4('sqrt')().domain(extent(data, fsize)).range(range);
+
+        fontSize = x => sizeScale(fsize(x));
+      }
+
+      data.forEach(t => {
+        t[as[0]] = NaN;
+        t[as[1]] = NaN;
+        t[as[3]] = 0;
+      }); // configure layout
+
+      const words = layout.words(data).text(_.text).size(_.size || [500, 500]).padding(_.padding || 1).spiral(_.spiral || 'archimedean').rotate(_.rotate || 0).font(_.font || 'sans-serif').fontStyle(_.fontStyle || 'normal').fontWeight(_.fontWeight || 'normal').fontSize(fontSize).random(exports.random).layout();
+      const size = layout.size(),
+            dx = size[0] >> 1,
+            dy = size[1] >> 1,
+            n = words.length;
+
+      for (let i = 0, w, t; i < n; ++i) {
+        w = words[i];
+        t = w.datum;
+        t[as[0]] = w.x + dx;
+        t[as[1]] = w.y + dy;
+        t[as[2]] = w.font;
+        t[as[3]] = w.size;
+        t[as[4]] = w.style;
+        t[as[5]] = w.weight;
+        t[as[6]] = w.rotate;
+      }
+
+      return pulse.reflow(mod).modifies(as);
+    }
+
+  });
+
+  var wordcloud = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    wordcloud: Wordcloud
+  });
+
+  const array8 = n => new Uint8Array(n);
+
+  const array16 = n => new Uint16Array(n);
+
+  const array32 = n => new Uint32Array(n);
+  /**
+   * Maintains CrossFilter state.
+   */
+
+
+  function Bitmaps() {
+    let width = 8,
+        data = [],
+        seen = array32(0),
+        curr = array$1(0, width),
+        prev = array$1(0, width);
+    return {
+      data: () => data,
+      seen: () => seen = lengthen(seen, data.length),
+
+      add(array) {
+        for (let i = 0, j = data.length, n = array.length, t; i < n; ++i) {
+          t = array[i];
+          t._index = j++;
+          data.push(t);
+        }
+      },
+
+      remove(num, map) {
+        // map: index -> boolean (true => remove)
+        const n = data.length,
+              copy = Array(n - num),
+              reindex = data; // reuse old data array for index map
+
+        let t, i, j; // seek forward to first removal
+
+        for (i = 0; !map[i] && i < n; ++i) {
+          copy[i] = data[i];
+          reindex[i] = i;
+        } // condense arrays
+
+
+        for (j = i; i < n; ++i) {
+          t = data[i];
+
+          if (!map[i]) {
+            reindex[i] = j;
+            curr[j] = curr[i];
+            prev[j] = prev[i];
+            copy[j] = t;
+            t._index = j++;
+          } else {
+            reindex[i] = -1;
+          }
+
+          curr[i] = 0; // clear unused bits
+        }
+
+        data = copy;
+        return reindex;
+      },
+
+      size: () => data.length,
+      curr: () => curr,
+      prev: () => prev,
+      reset: k => prev[k] = curr[k],
+      all: () => width < 0x101 ? 0xff : width < 0x10001 ? 0xffff : 0xffffffff,
+
+      set(k, one) {
+        curr[k] |= one;
+      },
+
+      clear(k, one) {
+        curr[k] &= ~one;
+      },
+
+      resize(n, m) {
+        const k = curr.length;
+
+        if (n > k || m > width) {
+          width = Math.max(m, width);
+          curr = array$1(n, width, curr);
+          prev = array$1(n, width);
+        }
+      }
+
+    };
+  }
+
+  function lengthen(array, length, copy) {
+    if (array.length >= length) return array;
+    copy = copy || new array.constructor(length);
+    copy.set(array);
+    return copy;
+  }
+
+  function array$1(n, m, array) {
+    const copy = (m < 0x101 ? array8 : m < 0x10001 ? array16 : array32)(n);
+    if (array) copy.set(array);
+    return copy;
+  }
+
+  function Dimension(index, i, query) {
+    const bit = 1 << i;
+    return {
+      one: bit,
+      zero: ~bit,
+      range: query.slice(),
+      bisect: index.bisect,
+      index: index.index,
+      size: index.size,
+
+      onAdd(added, curr) {
+        const dim = this,
+              range = dim.bisect(dim.range, added.value),
+              idx = added.index,
+              lo = range[0],
+              hi = range[1],
+              n1 = idx.length;
+        let i;
+
+        for (i = 0; i < lo; ++i) curr[idx[i]] |= bit;
+
+        for (i = hi; i < n1; ++i) curr[idx[i]] |= bit;
+
+        return dim;
+      }
+
+    };
+  }
+  /**
+   * Maintains a list of values, sorted by key.
+   */
+
+
+  function SortedIndex() {
+    let index = array32(0),
+        value = [],
+        size = 0;
+
+    function insert(key, data, base) {
+      if (!data.length) return [];
+      const n0 = size,
+            n1 = data.length,
+            addi = array32(n1);
+      let addv = Array(n1),
+          oldv,
+          oldi,
+          i;
+
+      for (i = 0; i < n1; ++i) {
+        addv[i] = key(data[i]);
+        addi[i] = i;
+      }
+
+      addv = sort(addv, addi);
+
+      if (n0) {
+        oldv = value;
+        oldi = index;
+        value = Array(n0 + n1);
+        index = array32(n0 + n1);
+        merge$1(base, oldv, oldi, n0, addv, addi, n1, value, index);
+      } else {
+        if (base > 0) for (i = 0; i < n1; ++i) {
+          addi[i] += base;
+        }
+        value = addv;
+        index = addi;
+      }
+
+      size = n0 + n1;
+      return {
+        index: addi,
+        value: addv
+      };
+    }
+
+    function remove(num, map) {
+      // map: index -> remove
+      const n = size;
+      let idx, i, j; // seek forward to first removal
+
+      for (i = 0; !map[index[i]] && i < n; ++i); // condense index and value arrays
+
+
+      for (j = i; i < n; ++i) {
+        if (!map[idx = index[i]]) {
+          index[j] = idx;
+          value[j] = value[i];
+          ++j;
+        }
+      }
+
+      size = n - num;
+    }
+
+    function reindex(map) {
+      for (let i = 0, n = size; i < n; ++i) {
+        index[i] = map[index[i]];
+      }
+    }
+
+    function bisect(range, array) {
+      let n;
+
+      if (array) {
+        n = array.length;
+      } else {
+        array = value;
+        n = size;
+      }
+
+      return [bisectLeft$1(array, range[0], 0, n), bisectRight$1(array, range[1], 0, n)];
+    }
+
+    return {
+      insert: insert,
+      remove: remove,
+      bisect: bisect,
+      reindex: reindex,
+      index: () => index,
+      size: () => size
+    };
+  }
+
+  function sort(values, index) {
+    values.sort.call(index, (a, b) => {
+      const x = values[a],
+            y = values[b];
+      return x < y ? -1 : x > y ? 1 : 0;
+    });
+    return permute(values, index);
+  }
+
+  function merge$1(base, value0, index0, n0, value1, index1, n1, value, index) {
+    let i0 = 0,
+        i1 = 0,
+        i;
+
+    for (i = 0; i0 < n0 && i1 < n1; ++i) {
+      if (value0[i0] < value1[i1]) {
+        value[i] = value0[i0];
+        index[i] = index0[i0++];
+      } else {
+        value[i] = value1[i1];
+        index[i] = index1[i1++] + base;
+      }
+    }
+
+    for (; i0 < n0; ++i0, ++i) {
+      value[i] = value0[i0];
+      index[i] = index0[i0];
+    }
+
+    for (; i1 < n1; ++i1, ++i) {
+      value[i] = value1[i1];
+      index[i] = index1[i1] + base;
+    }
+  }
+  /**
+   * An indexed multi-dimensional filter.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {Array<function(object): *>} params.fields - An array of dimension accessors to filter.
+   * @param {Array} params.query - An array of per-dimension range queries.
+   */
+
+
+  function CrossFilter(params) {
+    Transform.call(this, Bitmaps(), params);
+    this._indices = null;
+    this._dims = null;
+  }
+
+  CrossFilter.Definition = {
+    'type': 'CrossFilter',
+    'metadata': {},
+    'params': [{
+      'name': 'fields',
+      'type': 'field',
+      'array': true,
+      'required': true
+    }, {
+      'name': 'query',
+      'type': 'array',
+      'array': true,
+      'required': true,
+      'content': {
+        'type': 'number',
+        'array': true,
+        'length': 2
+      }
+    }]
+  };
+  inherits(CrossFilter, Transform, {
+    transform(_, pulse) {
+      if (!this._dims) {
+        return this.init(_, pulse);
+      } else {
+        var init = _.modified('fields') || _.fields.some(f => pulse.modified(f.fields));
+
+        return init ? this.reinit(_, pulse) : this.eval(_, pulse);
+      }
+    },
+
+    init(_, pulse) {
+      const fields = _.fields,
+            query = _.query,
+            indices = this._indices = {},
+            dims = this._dims = [],
+            m = query.length;
+      let i = 0,
+          key,
+          index; // instantiate indices and dimensions
+
+      for (; i < m; ++i) {
+        key = fields[i].fname;
+        index = indices[key] || (indices[key] = SortedIndex());
+        dims.push(Dimension(index, i, query[i]));
+      }
+
+      return this.eval(_, pulse);
+    },
+
+    reinit(_, pulse) {
+      const output = pulse.materialize().fork(),
+            fields = _.fields,
+            query = _.query,
+            indices = this._indices,
+            dims = this._dims,
+            bits = this.value,
+            curr = bits.curr(),
+            prev = bits.prev(),
+            all = bits.all(),
+            out = output.rem = output.add,
+            mod = output.mod,
+            m = query.length,
+            adds = {};
+      let add, index, key, mods, remMap, modMap, i, n, f; // set prev to current state
+
+      prev.set(curr); // if pulse has remove tuples, process them first
+
+      if (pulse.rem.length) {
+        remMap = this.remove(_, pulse, output);
+      } // if pulse has added tuples, add them to state
+
+
+      if (pulse.add.length) {
+        bits.add(pulse.add);
+      } // if pulse has modified tuples, create an index map
+
+
+      if (pulse.mod.length) {
+        modMap = {};
+
+        for (mods = pulse.mod, i = 0, n = mods.length; i < n; ++i) {
+          modMap[mods[i]._index] = 1;
+        }
+      } // re-initialize indices as needed, update curr bitmap
+
+
+      for (i = 0; i < m; ++i) {
+        f = fields[i];
+
+        if (!dims[i] || _.modified('fields', i) || pulse.modified(f.fields)) {
+          key = f.fname;
+
+          if (!(add = adds[key])) {
+            indices[key] = index = SortedIndex();
+            adds[key] = add = index.insert(f, pulse.source, 0);
+          }
+
+          dims[i] = Dimension(index, i, query[i]).onAdd(add, curr);
+        }
+      } // visit each tuple
+      // if filter state changed, push index to add/rem
+      // else if in mod and passes a filter, push index to mod
+
+
+      for (i = 0, n = bits.data().length; i < n; ++i) {
+        if (remMap[i]) {
+          // skip if removed tuple
+          continue;
+        } else if (prev[i] !== curr[i]) {
+          // add if state changed
+          out.push(i);
+        } else if (modMap[i] && curr[i] !== all) {
+          // otherwise, pass mods through
+          mod.push(i);
+        }
+      }
+
+      bits.mask = (1 << m) - 1;
+      return output;
+    },
+
+    eval(_, pulse) {
+      const output = pulse.materialize().fork(),
+            m = this._dims.length;
+      let mask = 0;
+
+      if (pulse.rem.length) {
+        this.remove(_, pulse, output);
+        mask |= (1 << m) - 1;
+      }
+
+      if (_.modified('query') && !_.modified('fields')) {
+        mask |= this.update(_, pulse, output);
+      }
+
+      if (pulse.add.length) {
+        this.insert(_, pulse, output);
+        mask |= (1 << m) - 1;
+      }
+
+      if (pulse.mod.length) {
+        this.modify(pulse, output);
+        mask |= (1 << m) - 1;
+      }
+
+      this.value.mask = mask;
+      return output;
+    },
+
+    insert(_, pulse, output) {
+      const tuples = pulse.add,
+            bits = this.value,
+            dims = this._dims,
+            indices = this._indices,
+            fields = _.fields,
+            adds = {},
+            out = output.add,
+            n = bits.size() + tuples.length,
+            m = dims.length;
+      let k = bits.size(),
+          j,
+          key,
+          add; // resize bitmaps and add tuples as needed
+
+      bits.resize(n, m);
+      bits.add(tuples);
+      const curr = bits.curr(),
+            prev = bits.prev(),
+            all = bits.all(); // add to dimensional indices
+
+      for (j = 0; j < m; ++j) {
+        key = fields[j].fname;
+        add = adds[key] || (adds[key] = indices[key].insert(fields[j], tuples, k));
+        dims[j].onAdd(add, curr);
+      } // set previous filters, output if passes at least one filter
+
+
+      for (; k < n; ++k) {
+        prev[k] = all;
+        if (curr[k] !== all) out.push(k);
+      }
+    },
+
+    modify(pulse, output) {
+      const out = output.mod,
+            bits = this.value,
+            curr = bits.curr(),
+            all = bits.all(),
+            tuples = pulse.mod;
+      let i, n, k;
+
+      for (i = 0, n = tuples.length; i < n; ++i) {
+        k = tuples[i]._index;
+        if (curr[k] !== all) out.push(k);
+      }
+    },
+
+    remove(_, pulse, output) {
+      const indices = this._indices,
+            bits = this.value,
+            curr = bits.curr(),
+            prev = bits.prev(),
+            all = bits.all(),
+            map = {},
+            out = output.rem,
+            tuples = pulse.rem;
+      let i, n, k, f; // process tuples, output if passes at least one filter
+
+      for (i = 0, n = tuples.length; i < n; ++i) {
+        k = tuples[i]._index;
+        map[k] = 1; // build index map
+
+        prev[k] = f = curr[k];
+        curr[k] = all;
+        if (f !== all) out.push(k);
+      } // remove from dimensional indices
+
+
+      for (k in indices) {
+        indices[k].remove(n, map);
+      }
+
+      this.reindex(pulse, n, map);
+      return map;
+    },
+
+    // reindex filters and indices after propagation completes
+    reindex(pulse, num, map) {
+      const indices = this._indices,
+            bits = this.value;
+      pulse.runAfter(() => {
+        const indexMap = bits.remove(num, map);
+
+        for (const key in indices) indices[key].reindex(indexMap);
+      });
+    },
+
+    update(_, pulse, output) {
+      const dims = this._dims,
+            query = _.query,
+            stamp = pulse.stamp,
+            m = dims.length;
+      let mask = 0,
+          i,
+          q; // survey how many queries have changed
+
+      output.filters = 0;
+
+      for (q = 0; q < m; ++q) {
+        if (_.modified('query', q)) {
+          i = q;
+          ++mask;
+        }
+      }
+
+      if (mask === 1) {
+        // only one query changed, use more efficient update
+        mask = dims[i].one;
+        this.incrementOne(dims[i], query[i], output.add, output.rem);
+      } else {
+        // multiple queries changed, perform full record keeping
+        for (q = 0, mask = 0; q < m; ++q) {
+          if (!_.modified('query', q)) continue;
+          mask |= dims[q].one;
+          this.incrementAll(dims[q], query[q], stamp, output.add);
+          output.rem = output.add; // duplicate add/rem for downstream resolve
+        }
+      }
+
+      return mask;
+    },
+
+    incrementAll(dim, query, stamp, out) {
+      const bits = this.value,
+            seen = bits.seen(),
+            curr = bits.curr(),
+            prev = bits.prev(),
+            index = dim.index(),
+            old = dim.bisect(dim.range),
+            range = dim.bisect(query),
+            lo1 = range[0],
+            hi1 = range[1],
+            lo0 = old[0],
+            hi0 = old[1],
+            one = dim.one;
+      let i, j, k; // Fast incremental update based on previous lo index.
+
+      if (lo1 < lo0) {
+        for (i = lo1, j = Math.min(lo0, hi1); i < j; ++i) {
+          k = index[i];
+
+          if (seen[k] !== stamp) {
+            prev[k] = curr[k];
+            seen[k] = stamp;
+            out.push(k);
+          }
+
+          curr[k] ^= one;
+        }
+      } else if (lo1 > lo0) {
+        for (i = lo0, j = Math.min(lo1, hi0); i < j; ++i) {
+          k = index[i];
+
+          if (seen[k] !== stamp) {
+            prev[k] = curr[k];
+            seen[k] = stamp;
+            out.push(k);
+          }
+
+          curr[k] ^= one;
+        }
+      } // Fast incremental update based on previous hi index.
+
+
+      if (hi1 > hi0) {
+        for (i = Math.max(lo1, hi0), j = hi1; i < j; ++i) {
+          k = index[i];
+
+          if (seen[k] !== stamp) {
+            prev[k] = curr[k];
+            seen[k] = stamp;
+            out.push(k);
+          }
+
+          curr[k] ^= one;
+        }
+      } else if (hi1 < hi0) {
+        for (i = Math.max(lo0, hi1), j = hi0; i < j; ++i) {
+          k = index[i];
+
+          if (seen[k] !== stamp) {
+            prev[k] = curr[k];
+            seen[k] = stamp;
+            out.push(k);
+          }
+
+          curr[k] ^= one;
+        }
+      }
+
+      dim.range = query.slice();
+    },
+
+    incrementOne(dim, query, add, rem) {
+      const bits = this.value,
+            curr = bits.curr(),
+            index = dim.index(),
+            old = dim.bisect(dim.range),
+            range = dim.bisect(query),
+            lo1 = range[0],
+            hi1 = range[1],
+            lo0 = old[0],
+            hi0 = old[1],
+            one = dim.one;
+      let i, j, k; // Fast incremental update based on previous lo index.
+
+      if (lo1 < lo0) {
+        for (i = lo1, j = Math.min(lo0, hi1); i < j; ++i) {
+          k = index[i];
+          curr[k] ^= one;
+          add.push(k);
+        }
+      } else if (lo1 > lo0) {
+        for (i = lo0, j = Math.min(lo1, hi0); i < j; ++i) {
+          k = index[i];
+          curr[k] ^= one;
+          rem.push(k);
+        }
+      } // Fast incremental update based on previous hi index.
+
+
+      if (hi1 > hi0) {
+        for (i = Math.max(lo1, hi0), j = hi1; i < j; ++i) {
+          k = index[i];
+          curr[k] ^= one;
+          add.push(k);
+        }
+      } else if (hi1 < hi0) {
+        for (i = Math.max(lo0, hi1), j = hi0; i < j; ++i) {
+          k = index[i];
+          curr[k] ^= one;
+          rem.push(k);
+        }
+      }
+
+      dim.range = query.slice();
+    }
+
+  });
+  /**
+   * Selectively filters tuples by resolving against a filter bitmap.
+   * Useful for processing the output of a cross-filter transform.
+   * @constructor
+   * @param {object} params - The parameters for this operator.
+   * @param {object} params.ignore - A bit mask indicating which filters to ignore.
+   * @param {object} params.filter - The per-tuple filter bitmaps. Typically this
+   *   parameter value is a reference to a {@link CrossFilter} transform.
+   */
+
+  function ResolveFilter(params) {
+    Transform.call(this, null, params);
+  }
+
+  ResolveFilter.Definition = {
+    'type': 'ResolveFilter',
+    'metadata': {},
+    'params': [{
+      'name': 'ignore',
+      'type': 'number',
+      'required': true,
+      'description': 'A bit mask indicating which filters to ignore.'
+    }, {
+      'name': 'filter',
+      'type': 'object',
+      'required': true,
+      'description': 'Per-tuple filter bitmaps from a CrossFilter transform.'
+    }]
+  };
+  inherits(ResolveFilter, Transform, {
+    transform(_, pulse) {
+      const ignore = ~(_.ignore || 0),
+            // bit mask where zeros -> dims to ignore
+      bitmap = _.filter,
+            mask = bitmap.mask; // exit early if no relevant filter changes
+
+      if ((mask & ignore) === 0) return pulse.StopPropagation;
+
+      const output = pulse.fork(pulse.ALL),
+            data = bitmap.data(),
+            curr = bitmap.curr(),
+            prev = bitmap.prev(),
+            pass = k => !(curr[k] & ignore) ? data[k] : null; // propagate all mod tuples that pass the filter
+
+
+      output.filter(output.MOD, pass); // determine add & rem tuples via filter functions
+      // for efficiency, we do *not* populate new arrays,
+      // instead we add filter functions applied downstream
+
+      if (!(mask & mask - 1)) {
+        // only one filter changed
+        output.filter(output.ADD, pass);
+        output.filter(output.REM, k => (curr[k] & ignore) === mask ? data[k] : null);
+      } else {
+        // multiple filters changed
+        output.filter(output.ADD, k => {
+          const c = curr[k] & ignore,
+                f = !c && c ^ prev[k] & ignore;
+          return f ? data[k] : null;
+        });
+        output.filter(output.REM, k => {
+          const c = curr[k] & ignore,
+                f = c && !(c ^ (c ^ prev[k] & ignore));
+          return f ? data[k] : null;
+        });
+      } // add filter to source data in case of reflow...
+
+
+      return output.filter(output.SOURCE, t => pass(t._index));
+    }
+
+  });
+
+  var xf = /*#__PURE__*/Object.freeze({
+    __proto__: null,
+    crossfilter: CrossFilter,
+    resolvefilter: ResolveFilter
+  });
+
+  const RawCode = 'RawCode';
+  const Literal = 'Literal';
+  const Property = 'Property';
+  const Identifier = 'Identifier';
+  const ArrayExpression = 'ArrayExpression';
+  const BinaryExpression = 'BinaryExpression';
+  const CallExpression = 'CallExpression';
+  const ConditionalExpression = 'ConditionalExpression';
+  const LogicalExpression = 'LogicalExpression';
+  const MemberExpression = 'MemberExpression';
+  const ObjectExpression = 'ObjectExpression';
+  const UnaryExpression = 'UnaryExpression';
+
+  function ASTNode(type) {
+    this.type = type;
+  }
+
+  ASTNode.prototype.visit = function (visitor) {
+    let c, i, n;
+    if (visitor(this)) return 1;
+
+    for (c = children(this), i = 0, n = c.length; i < n; ++i) {
+      if (c[i].visit(visitor)) return 1;
+    }
+  };
+
+  function children(node) {
+    switch (node.type) {
+      case ArrayExpression:
+        return node.elements;
+
+      case BinaryExpression:
+      case LogicalExpression:
+        return [node.left, node.right];
+
+      case CallExpression:
+        return [node.callee].concat(node.arguments);
+
+      case ConditionalExpression:
+        return [node.test, node.consequent, node.alternate];
+
+      case MemberExpression:
+        return [node.object, node.property];
+
+      case ObjectExpression:
+        return node.properties;
+
+      case Property:
+        return [node.key, node.value];
+
+      case UnaryExpression:
+        return [node.argument];
+
+      case Identifier:
+      case Literal:
+      case RawCode:
+      default:
+        return [];
+    }
+  }
+  /*
+    The following expression parser is based on Esprima (http://esprima.org/).
+    Original header comment and license for Esprima is included here:
+
+    Copyright (C) 2013 Ariya Hidayat <ariya.hidayat@gmail.com>
+    Copyright (C) 2013 Thaddee Tyl <thaddee.tyl@gmail.com>
+    Copyright (C) 2013 Mathias Bynens <mathias@qiwi.be>
+    Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
+    Copyright (C) 2012 Mathias Bynens <mathias@qiwi.be>
+    Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl>
+    Copyright (C) 2012 Kris Kowal <kris.kowal@cixar.com>
+    Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>
+    Copyright (C) 2012 Arpad Borsos <arpad.borsos@googlemail.com>
+    Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright
+        notice, this list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright
+        notice, this list of conditions and the following disclaimer in the
+        documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  */
+
+
+  var TokenName, source, index, length, lookahead;
+  var TokenBooleanLiteral = 1,
+      TokenEOF = 2,
+      TokenIdentifier = 3,
+      TokenKeyword = 4,
+      TokenNullLiteral = 5,
+      TokenNumericLiteral = 6,
+      TokenPunctuator = 7,
+      TokenStringLiteral = 8,
+      TokenRegularExpression = 9;
+  TokenName = {};
+  TokenName[TokenBooleanLiteral] = 'Boolean';
+  TokenName[TokenEOF] = '<end>';
+  TokenName[TokenIdentifier] = 'Identifier';
+  TokenName[TokenKeyword] = 'Keyword';
+  TokenName[TokenNullLiteral] = 'Null';
+  TokenName[TokenNumericLiteral] = 'Numeric';
+  TokenName[TokenPunctuator] = 'Punctuator';
+  TokenName[TokenStringLiteral] = 'String';
+  TokenName[TokenRegularExpression] = 'RegularExpression';
+  var SyntaxArrayExpression = 'ArrayExpression',
+      SyntaxBinaryExpression = 'BinaryExpression',
+      SyntaxCallExpression = 'CallExpression',
+      SyntaxConditionalExpression = 'ConditionalExpression',
+      SyntaxIdentifier = 'Identifier',
+      SyntaxLiteral = 'Literal',
+      SyntaxLogicalExpression = 'LogicalExpression',
+      SyntaxMemberExpression = 'MemberExpression',
+      SyntaxObjectExpression = 'ObjectExpression',
+      SyntaxProperty = 'Property',
+      SyntaxUnaryExpression = 'UnaryExpression'; // Error messages should be identical to V8.
+
+  var MessageUnexpectedToken = 'Unexpected token %0',
+      MessageUnexpectedNumber = 'Unexpected number',
+      MessageUnexpectedString = 'Unexpected string',
+      MessageUnexpectedIdentifier = 'Unexpected identifier',
+      MessageUnexpectedReserved = 'Unexpected reserved word',
+      MessageUnexpectedEOS = 'Unexpected end of input',
+      MessageInvalidRegExp = 'Invalid regular expression',
+      MessageUnterminatedRegExp = 'Invalid regular expression: missing /',
+      MessageStrictOctalLiteral = 'Octal literals are not allowed in strict mode.',
+      MessageStrictDuplicateProperty = 'Duplicate data property in object literal not allowed in strict mode';
+  var ILLEGAL$1 = 'ILLEGAL',
+      DISABLED = 'Disabled.'; // See also tools/generate-unicode-regex.py.
+
+  var RegexNonAsciiIdentifierStart = new RegExp('[\\xAA\\xB5\\xBA\\xC0-\\xD6\\xD8-\\xF6\\xF8-\\u02C1\\u02C6-\\u02D1\\u02E0-\\u02E4\\u02EC\\u02EE\\u0370-\\u0374\\u0376\\u0377\\u037A-\\u037D\\u037F\\u0386\\u0388-\\u038A\\u038C\\u038E-\\u03A1\\u03A3-\\u03F5\\u03F7-\\u0481\\u048A-\\u052F\\u0531-\\u0556\\u0559\\u0561-\\u0587\\u05D0-\\u05EA\\u05F0-\\u05F2\\u0620-\\u064A\\u066E\\u066F\\u0671-\\u06D3\\u06D5\\u06E5\\u06E6\\u06EE\\u06EF\\u06FA-\\u06FC\\u06FF\\u0710\\u0712-\\u072F\\u074D-\\u07A5\\u07B1\\u07CA-\\u07EA\\u07F4\\u07F5\\u07FA\\u0800-\\u0815\\u081A\\u0824\\u0828\\u0840-\\u0858\\u08A0-\\u08B2\\u0904-\\u0939\\u093D\\u0950\\u0958-\\u0961\\u0971-\\u0980\\u0985-\\u098C\\u098F\\u0990\\u0993-\\u09A8\\u09AA-\\u09B0\\u09B2\\u09B6-\\u09B9\\u09BD\\u09CE\\u09DC\\u09DD\\u09DF-\\u09E1\\u09F0\\u09F1\\u0A05-\\u0A0A\\u0A0F\\u0A10\\u0A13-\\u0A28\\u0A2A-\\u0A30\\u0A32\\u0A33\\u0A35\\u0A36\\u0A38\\u0A39\\u0A59-\\u0A5C\\u0A5E\\u0A72-\\u0A74\\u0A85-\\u0A8D\\u0A8F-\\u0A91\\u0A93-\\u0AA8\\u0AAA-\\u0AB0\\u0AB2\\u0AB3\\u0AB5-\\u0AB9\\u0ABD\\u0AD0\\u0AE0\\u0AE1\\u0B05-\\u0B0C\\u0B0F\\u0B10\\u0B13-\\u0B28\\u0B2A-\\u0B30\\u0B32\\u0B33\\u0B35-\\u0B39\\u0B3D\\u0B5C\\u0B5D\\u0B5F-\\u0B61\\u0B71\\u0B83\\u0B85-\\u0B8A\\u0B8E-\\u0B90\\u0B92-\\u0B95\\u0B99\\u0B9A\\u0B9C\\u0B9E\\u0B9F\\u0BA3\\u0BA4\\u0BA8-\\u0BAA\\u0BAE-\\u0BB9\\u0BD0\\u0C05-\\u0C0C\\u0C0E-\\u0C10\\u0C12-\\u0C28\\u0C2A-\\u0C39\\u0C3D\\u0C58\\u0C59\\u0C60\\u0C61\\u0C85-\\u0C8C\\u0C8E-\\u0C90\\u0C92-\\u0CA8\\u0CAA-\\u0CB3\\u0CB5-\\u0CB9\\u0CBD\\u0CDE\\u0CE0\\u0CE1\\u0CF1\\u0CF2\\u0D05-\\u0D0C\\u0D0E-\\u0D10\\u0D12-\\u0D3A\\u0D3D\\u0D4E\\u0D60\\u0D61\\u0D7A-\\u0D7F\\u0D85-\\u0D96\\u0D9A-\\u0DB1\\u0DB3-\\u0DBB\\u0DBD\\u0DC0-\\u0DC6\\u0E01-\\u0E30\\u0E32\\u0E33\\u0E40-\\u0E46\\u0E81\\u0E82\\u0E84\\u0E87\\u0E88\\u0E8A\\u0E8D\\u0E94-\\u0E97\\u0E99-\\u0E9F\\u0EA1-\\u0EA3\\u0EA5\\u0EA7\\u0EAA\\u0EAB\\u0EAD-\\u0EB0\\u0EB2\\u0EB3\\u0EBD\\u0EC0-\\u0EC4\\u0EC6\\u0EDC-\\u0EDF\\u0F00\\u0F40-\\u0F47\\u0F49-\\u0F6C\\u0F88-\\u0F8C\\u1000-\\u102A\\u103F\\u1050-\\u1055\\u105A-\\u105D\\u1061\\u1065\\u1066\\u106E-\\u1070\\u1075-\\u1081\\u108E\\u10A0-\\u10C5\\u10C7\\u10CD\\u10D0-\\u10FA\\u10FC-\\u1248\\u124A-\\u124D\\u1250-\\u1256\\u1258\\u125A-\\u125D\\u1260-\\u1288\\u128A-\\u128D\\u1290-\\u12B0\\u12B2-\\u12B5\\u12B8-\\u12BE\\u12C0\\u12C2-\\u12C5\\u12C8-\\u12D6\\u12D8-\\u1310\\u1312-\\u1315\\u1318-\\u135A\\u1380-\\u138F\\u13A0-\\u13F4\\u1401-\\u166C\\u166F-\\u167F\\u1681-\\u169A\\u16A0-\\u16EA\\u16EE-\\u16F8\\u1700-\\u170C\\u170E-\\u1711\\u1720-\\u1731\\u1740-\\u1751\\u1760-\\u176C\\u176E-\\u1770\\u1780-\\u17B3\\u17D7\\u17DC\\u1820-\\u1877\\u1880-\\u18A8\\u18AA\\u18B0-\\u18F5\\u1900-\\u191E\\u1950-\\u196D\\u1970-\\u1974\\u1980-\\u19AB\\u19C1-\\u19C7\\u1A00-\\u1A16\\u1A20-\\u1A54\\u1AA7\\u1B05-\\u1B33\\u1B45-\\u1B4B\\u1B83-\\u1BA0\\u1BAE\\u1BAF\\u1BBA-\\u1BE5\\u1C00-\\u1C23\\u1C4D-\\u1C4F\\u1C5A-\\u1C7D\\u1CE9-\\u1CEC\\u1CEE-\\u1CF1\\u1CF5\\u1CF6\\u1D00-\\u1DBF\\u1E00-\\u1F15\\u1F18-\\u1F1D\\u1F20-\\u1F45\\u1F48-\\u1F4D\\u1F50-\\u1F57\\u1F59\\u1F5B\\u1F5D\\u1F5F-\\u1F7D\\u1F80-\\u1FB4\\u1FB6-\\u1FBC\\u1FBE\\u1FC2-\\u1FC4\\u1FC6-\\u1FCC\\u1FD0-\\u1FD3\\u1FD6-\\u1FDB\\u1FE0-\\u1FEC\\u1FF2-\\u1FF4\\u1FF6-\\u1FFC\\u2071\\u207F\\u2090-\\u209C\\u2102\\u2107\\u210A-\\u2113\\u2115\\u2119-\\u211D\\u2124\\u2126\\u2128\\u212A-\\u212D\\u212F-\\u2139\\u213C-\\u213F\\u2145-\\u2149\\u214E\\u2160-\\u2188\\u2C00-\\u2C2E\\u2C30-\\u2C5E\\u2C60-\\u2CE4\\u2CEB-\\u2CEE\\u2CF2\\u2CF3\\u2D00-\\u2D25\\u2D27\\u2D2D\\u2D30-\\u2D67\\u2D6F\\u2D80-\\u2D96\\u2DA0-\\u2DA6\\u2DA8-\\u2DAE\\u2DB0-\\u2DB6\\u2DB8-\\u2DBE\\u2DC0-\\u2DC6\\u2DC8-\\u2DCE\\u2DD0-\\u2DD6\\u2DD8-\\u2DDE\\u2E2F\\u3005-\\u3007\\u3021-\\u3029\\u3031-\\u3035\\u3038-\\u303C\\u3041-\\u3096\\u309D-\\u309F\\u30A1-\\u30FA\\u30FC-\\u30FF\\u3105-\\u312D\\u3131-\\u318E\\u31A0-\\u31BA\\u31F0-\\u31FF\\u3400-\\u4DB5\\u4E00-\\u9FCC\\uA000-\\uA48C\\uA4D0-\\uA4FD\\uA500-\\uA60C\\uA610-\\uA61F\\uA62A\\uA62B\\uA640-\\uA66E\\uA67F-\\uA69D\\uA6A0-\\uA6EF\\uA717-\\uA71F\\uA722-\\uA788\\uA78B-\\uA78E\\uA790-\\uA7AD\\uA7B0\\uA7B1\\uA7F7-\\uA801\\uA803-\\uA805\\uA807-\\uA80A\\uA80C-\\uA822\\uA840-\\uA873\\uA882-\\uA8B3\\uA8F2-\\uA8F7\\uA8FB\\uA90A-\\uA925\\uA930-\\uA946\\uA960-\\uA97C\\uA984-\\uA9B2\\uA9CF\\uA9E0-\\uA9E4\\uA9E6-\\uA9EF\\uA9FA-\\uA9FE\\uAA00-\\uAA28\\uAA40-\\uAA42\\uAA44-\\uAA4B\\uAA60-\\uAA76\\uAA7A\\uAA7E-\\uAAAF\\uAAB1\\uAAB5\\uAAB6\\uAAB9-\\uAABD\\uAAC0\\uAAC2\\uAADB-\\uAADD\\uAAE0-\\uAAEA\\uAAF2-\\uAAF4\\uAB01-\\uAB06\\uAB09-\\uAB0E\\uAB11-\\uAB16\\uAB20-\\uAB26\\uAB28-\\uAB2E\\uAB30-\\uAB5A\\uAB5C-\\uAB5F\\uAB64\\uAB65\\uABC0-\\uABE2\\uAC00-\\uD7A3\\uD7B0-\\uD7C6\\uD7CB-\\uD7FB\\uF900-\\uFA6D\\uFA70-\\uFAD9\\uFB00-\\uFB06\\uFB13-\\uFB17\\uFB1D\\uFB1F-\\uFB28\\uFB2A-\\uFB36\\uFB38-\\uFB3C\\uFB3E\\uFB40\\uFB41\\uFB43\\uFB44\\uFB46-\\uFBB1\\uFBD3-\\uFD3D\\uFD50-\\uFD8F\\uFD92-\\uFDC7\\uFDF0-\\uFDFB\\uFE70-\\uFE74\\uFE76-\\uFEFC\\uFF21-\\uFF3A\\uFF41-\\uFF5A\\uFF66-\\uFFBE\\uFFC2-\\uFFC7\\uFFCA-\\uFFCF\\uFFD2-\\uFFD7\\uFFDA-\\uFFDC]'),
+      // eslint-disable-next-line no-misleading-character-class
+  RegexNonAsciiIdentifierPart = new RegExp('[\\xAA\\xB5\\xBA\\xC0-\\xD6\\xD8-\\xF6\\xF8-\\u02C1\\u02C6-\\u02D1\\u02E0-\\u02E4\\u02EC\\u02EE\\u0300-\\u0374\\u0376\\u0377\\u037A-\\u037D\\u037F\\u0386\\u0388-\\u038A\\u038C\\u038E-\\u03A1\\u03A3-\\u03F5\\u03F7-\\u0481\\u0483-\\u0487\\u048A-\\u052F\\u0531-\\u0556\\u0559\\u0561-\\u0587\\u0591-\\u05BD\\u05BF\\u05C1\\u05C2\\u05C4\\u05C5\\u05C7\\u05D0-\\u05EA\\u05F0-\\u05F2\\u0610-\\u061A\\u0620-\\u0669\\u066E-\\u06D3\\u06D5-\\u06DC\\u06DF-\\u06E8\\u06EA-\\u06FC\\u06FF\\u0710-\\u074A\\u074D-\\u07B1\\u07C0-\\u07F5\\u07FA\\u0800-\\u082D\\u0840-\\u085B\\u08A0-\\u08B2\\u08E4-\\u0963\\u0966-\\u096F\\u0971-\\u0983\\u0985-\\u098C\\u098F\\u0990\\u0993-\\u09A8\\u09AA-\\u09B0\\u09B2\\u09B6-\\u09B9\\u09BC-\\u09C4\\u09C7\\u09C8\\u09CB-\\u09CE\\u09D7\\u09DC\\u09DD\\u09DF-\\u09E3\\u09E6-\\u09F1\\u0A01-\\u0A03\\u0A05-\\u0A0A\\u0A0F\\u0A10\\u0A13-\\u0A28\\u0A2A-\\u0A30\\u0A32\\u0A33\\u0A35\\u0A36\\u0A38\\u0A39\\u0A3C\\u0A3E-\\u0A42\\u0A47\\u0A48\\u0A4B-\\u0A4D\\u0A51\\u0A59-\\u0A5C\\u0A5E\\u0A66-\\u0A75\\u0A81-\\u0A83\\u0A85-\\u0A8D\\u0A8F-\\u0A91\\u0A93-\\u0AA8\\u0AAA-\\u0AB0\\u0AB2\\u0AB3\\u0AB5-\\u0AB9\\u0ABC-\\u0AC5\\u0AC7-\\u0AC9\\u0ACB-\\u0ACD\\u0AD0\\u0AE0-\\u0AE3\\u0AE6-\\u0AEF\\u0B01-\\u0B03\\u0B05-\\u0B0C\\u0B0F\\u0B10\\u0B13-\\u0B28\\u0B2A-\\u0B30\\u0B32\\u0B33\\u0B35-\\u0B39\\u0B3C-\\u0B44\\u0B47\\u0B48\\u0B4B-\\u0B4D\\u0B56\\u0B57\\u0B5C\\u0B5D\\u0B5F-\\u0B63\\u0B66-\\u0B6F\\u0B71\\u0B82\\u0B83\\u0B85-\\u0B8A\\u0B8E-\\u0B90\\u0B92-\\u0B95\\u0B99\\u0B9A\\u0B9C\\u0B9E\\u0B9F\\u0BA3\\u0BA4\\u0BA8-\\u0BAA\\u0BAE-\\u0BB9\\u0BBE-\\u0BC2\\u0BC6-\\u0BC8\\u0BCA-\\u0BCD\\u0BD0\\u0BD7\\u0BE6-\\u0BEF\\u0C00-\\u0C03\\u0C05-\\u0C0C\\u0C0E-\\u0C10\\u0C12-\\u0C28\\u0C2A-\\u0C39\\u0C3D-\\u0C44\\u0C46-\\u0C48\\u0C4A-\\u0C4D\\u0C55\\u0C56\\u0C58\\u0C59\\u0C60-\\u0C63\\u0C66-\\u0C6F\\u0C81-\\u0C83\\u0C85-\\u0C8C\\u0C8E-\\u0C90\\u0C92-\\u0CA8\\u0CAA-\\u0CB3\\u0CB5-\\u0CB9\\u0CBC-\\u0CC4\\u0CC6-\\u0CC8\\u0CCA-\\u0CCD\\u0CD5\\u0CD6\\u0CDE\\u0CE0-\\u0CE3\\u0CE6-\\u0CEF\\u0CF1\\u0CF2\\u0D01-\\u0D03\\u0D05-\\u0D0C\\u0D0E-\\u0D10\\u0D12-\\u0D3A\\u0D3D-\\u0D44\\u0D46-\\u0D48\\u0D4A-\\u0D4E\\u0D57\\u0D60-\\u0D63\\u0D66-\\u0D6F\\u0D7A-\\u0D7F\\u0D82\\u0D83\\u0D85-\\u0D96\\u0D9A-\\u0DB1\\u0DB3-\\u0DBB\\u0DBD\\u0DC0-\\u0DC6\\u0DCA\\u0DCF-\\u0DD4\\u0DD6\\u0DD8-\\u0DDF\\u0DE6-\\u0DEF\\u0DF2\\u0DF3\\u0E01-\\u0E3A\\u0E40-\\u0E4E\\u0E50-\\u0E59\\u0E81\\u0E82\\u0E84\\u0E87\\u0E88\\u0E8A\\u0E8D\\u0E94-\\u0E97\\u0E99-\\u0E9F\\u0EA1-\\u0EA3\\u0EA5\\u0EA7\\u0EAA\\u0EAB\\u0EAD-\\u0EB9\\u0EBB-\\u0EBD\\u0EC0-\\u0EC4\\u0EC6\\u0EC8-\\u0ECD\\u0ED0-\\u0ED9\\u0EDC-\\u0EDF\\u0F00\\u0F18\\u0F19\\u0F20-\\u0F29\\u0F35\\u0F37\\u0F39\\u0F3E-\\u0F47\\u0F49-\\u0F6C\\u0F71-\\u0F84\\u0F86-\\u0F97\\u0F99-\\u0FBC\\u0FC6\\u1000-\\u1049\\u1050-\\u109D\\u10A0-\\u10C5\\u10C7\\u10CD\\u10D0-\\u10FA\\u10FC-\\u1248\\u124A-\\u124D\\u1250-\\u1256\\u1258\\u125A-\\u125D\\u1260-\\u1288\\u128A-\\u128D\\u1290-\\u12B0\\u12B2-\\u12B5\\u12B8-\\u12BE\\u12C0\\u12C2-\\u12C5\\u12C8-\\u12D6\\u12D8-\\u1310\\u1312-\\u1315\\u1318-\\u135A\\u135D-\\u135F\\u1380-\\u138F\\u13A0-\\u13F4\\u1401-\\u166C\\u166F-\\u167F\\u1681-\\u169A\\u16A0-\\u16EA\\u16EE-\\u16F8\\u1700-\\u170C\\u170E-\\u1714\\u1720-\\u1734\\u1740-\\u1753\\u1760-\\u176C\\u176E-\\u1770\\u1772\\u1773\\u1780-\\u17D3\\u17D7\\u17DC\\u17DD\\u17E0-\\u17E9\\u180B-\\u180D\\u1810-\\u1819\\u1820-\\u1877\\u1880-\\u18AA\\u18B0-\\u18F5\\u1900-\\u191E\\u1920-\\u192B\\u1930-\\u193B\\u1946-\\u196D\\u1970-\\u1974\\u1980-\\u19AB\\u19B0-\\u19C9\\u19D0-\\u19D9\\u1A00-\\u1A1B\\u1A20-\\u1A5E\\u1A60-\\u1A7C\\u1A7F-\\u1A89\\u1A90-\\u1A99\\u1AA7\\u1AB0-\\u1ABD\\u1B00-\\u1B4B\\u1B50-\\u1B59\\u1B6B-\\u1B73\\u1B80-\\u1BF3\\u1C00-\\u1C37\\u1C40-\\u1C49\\u1C4D-\\u1C7D\\u1CD0-\\u1CD2\\u1CD4-\\u1CF6\\u1CF8\\u1CF9\\u1D00-\\u1DF5\\u1DFC-\\u1F15\\u1F18-\\u1F1D\\u1F20-\\u1F45\\u1F48-\\u1F4D\\u1F50-\\u1F57\\u1F59\\u1F5B\\u1F5D\\u1F5F-\\u1F7D\\u1F80-\\u1FB4\\u1FB6-\\u1FBC\\u1FBE\\u1FC2-\\u1FC4\\u1FC6-\\u1FCC\\u1FD0-\\u1FD3\\u1FD6-\\u1FDB\\u1FE0-\\u1FEC\\u1FF2-\\u1FF4\\u1FF6-\\u1FFC\\u200C\\u200D\\u203F\\u2040\\u2054\\u2071\\u207F\\u2090-\\u209C\\u20D0-\\u20DC\\u20E1\\u20E5-\\u20F0\\u2102\\u2107\\u210A-\\u2113\\u2115\\u2119-\\u211D\\u2124\\u2126\\u2128\\u212A-\\u212D\\u212F-\\u2139\\u213C-\\u213F\\u2145-\\u2149\\u214E\\u2160-\\u2188\\u2C00-\\u2C2E\\u2C30-\\u2C5E\\u2C60-\\u2CE4\\u2CEB-\\u2CF3\\u2D00-\\u2D25\\u2D27\\u2D2D\\u2D30-\\u2D67\\u2D6F\\u2D7F-\\u2D96\\u2DA0-\\u2DA6\\u2DA8-\\u2DAE\\u2DB0-\\u2DB6\\u2DB8-\\u2DBE\\u2DC0-\\u2DC6\\u2DC8-\\u2DCE\\u2DD0-\\u2DD6\\u2DD8-\\u2DDE\\u2DE0-\\u2DFF\\u2E2F\\u3005-\\u3007\\u3021-\\u302F\\u3031-\\u3035\\u3038-\\u303C\\u3041-\\u3096\\u3099\\u309A\\u309D-\\u309F\\u30A1-\\u30FA\\u30FC-\\u30FF\\u3105-\\u312D\\u3131-\\u318E\\u31A0-\\u31BA\\u31F0-\\u31FF\\u3400-\\u4DB5\\u4E00-\\u9FCC\\uA000-\\uA48C\\uA4D0-\\uA4FD\\uA500-\\uA60C\\uA610-\\uA62B\\uA640-\\uA66F\\uA674-\\uA67D\\uA67F-\\uA69D\\uA69F-\\uA6F1\\uA717-\\uA71F\\uA722-\\uA788\\uA78B-\\uA78E\\uA790-\\uA7AD\\uA7B0\\uA7B1\\uA7F7-\\uA827\\uA840-\\uA873\\uA880-\\uA8C4\\uA8D0-\\uA8D9\\uA8E0-\\uA8F7\\uA8FB\\uA900-\\uA92D\\uA930-\\uA953\\uA960-\\uA97C\\uA980-\\uA9C0\\uA9CF-\\uA9D9\\uA9E0-\\uA9FE\\uAA00-\\uAA36\\uAA40-\\uAA4D\\uAA50-\\uAA59\\uAA60-\\uAA76\\uAA7A-\\uAAC2\\uAADB-\\uAADD\\uAAE0-\\uAAEF\\uAAF2-\\uAAF6\\uAB01-\\uAB06\\uAB09-\\uAB0E\\uAB11-\\uAB16\\uAB20-\\uAB26\\uAB28-\\uAB2E\\uAB30-\\uAB5A\\uAB5C-\\uAB5F\\uAB64\\uAB65\\uABC0-\\uABEA\\uABEC\\uABED\\uABF0-\\uABF9\\uAC00-\\uD7A3\\uD7B0-\\uD7C6\\uD7CB-\\uD7FB\\uF900-\\uFA6D\\uFA70-\\uFAD9\\uFB00-\\uFB06\\uFB13-\\uFB17\\uFB1D-\\uFB28\\uFB2A-\\uFB36\\uFB38-\\uFB3C\\uFB3E\\uFB40\\uFB41\\uFB43\\uFB44\\uFB46-\\uFBB1\\uFBD3-\\uFD3D\\uFD50-\\uFD8F\\uFD92-\\uFDC7\\uFDF0-\\uFDFB\\uFE00-\\uFE0F\\uFE20-\\uFE2D\\uFE33\\uFE34\\uFE4D-\\uFE4F\\uFE70-\\uFE74\\uFE76-\\uFEFC\\uFF10-\\uFF19\\uFF21-\\uFF3A\\uFF3F\\uFF41-\\uFF5A\\uFF66-\\uFFBE\\uFFC2-\\uFFC7\\uFFCA-\\uFFCF\\uFFD2-\\uFFD7\\uFFDA-\\uFFDC]'); // Ensure the condition is true, otherwise throw an error.
+  // This is only to have a better contract semantic, i.e. another safety net
+  // to catch a logic error. The condition shall be fulfilled in normal case.
+  // Do NOT use this to enforce a certain condition on any user input.
+
+  function assert(condition, message) {
+    /* istanbul ignore next */
+    if (!condition) {
+      throw new Error('ASSERT: ' + message);
+    }
+  }
+
+  function isDecimalDigit(ch) {
+    return ch >= 0x30 && ch <= 0x39; // 0..9
+  }
+
+  function isHexDigit(ch) {
+    return '0123456789abcdefABCDEF'.indexOf(ch) >= 0;
+  }
+
+  function isOctalDigit(ch) {
+    return '01234567'.indexOf(ch) >= 0;
+  } // 7.2 White Space
+
+
+  function isWhiteSpace(ch) {
+    return ch === 0x20 || ch === 0x09 || ch === 0x0B || ch === 0x0C || ch === 0xA0 || ch >= 0x1680 && [0x1680, 0x180E, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(ch) >= 0;
+  } // 7.3 Line Terminators
+
+
+  function isLineTerminator(ch) {
+    return ch === 0x0A || ch === 0x0D || ch === 0x2028 || ch === 0x2029;
+  } // 7.6 Identifier Names and Identifiers
+
+
+  function isIdentifierStart(ch) {
+    return ch === 0x24 || ch === 0x5F || ch >= 0x41 && ch <= 0x5A || ch >= 0x61 && ch <= 0x7A || ch === 0x5C || ch >= 0x80 && RegexNonAsciiIdentifierStart.test(String.fromCharCode(ch));
+  }
+
+  function isIdentifierPart(ch) {
+    return ch === 0x24 || ch === 0x5F || ch >= 0x41 && ch <= 0x5A || ch >= 0x61 && ch <= 0x7A || ch >= 0x30 && ch <= 0x39 || ch === 0x5C || ch >= 0x80 && RegexNonAsciiIdentifierPart.test(String.fromCharCode(ch));
+  } // 7.6.1.1 Keywords
+
+
+  const keywords = {
+    'if': 1,
+    'in': 1,
+    'do': 1,
+    'var': 1,
+    'for': 1,
+    'new': 1,
+    'try': 1,
+    'let': 1,
+    'this': 1,
+    'else': 1,
+    'case': 1,
+    'void': 1,
+    'with': 1,
+    'enum': 1,
+    'while': 1,
+    'break': 1,
+    'catch': 1,
+    'throw': 1,
+    'const': 1,
+    'yield': 1,
+    'class': 1,
+    'super': 1,
+    'return': 1,
+    'typeof': 1,
+    'delete': 1,
+    'switch': 1,
+    'export': 1,
+    'import': 1,
+    'public': 1,
+    'static': 1,
+    'default': 1,
+    'finally': 1,
+    'extends': 1,
+    'package': 1,
+    'private': 1,
+    'function': 1,
+    'continue': 1,
+    'debugger': 1,
+    'interface': 1,
+    'protected': 1,
+    'instanceof': 1,
+    'implements': 1
+  };
+
+  function skipComment() {
+    while (index < length) {
+      const ch = source.charCodeAt(index);
+
+      if (isWhiteSpace(ch) || isLineTerminator(ch)) {
+        ++index;
+      } else {
+        break;
+      }
+    }
+  }
+
+  function scanHexEscape(prefix) {
+    var i,
+        len,
+        ch,
+        code = 0;
+    len = prefix === 'u' ? 4 : 2;
+
+    for (i = 0; i < len; ++i) {
+      if (index < length && isHexDigit(source[index])) {
+        ch = source[index++];
+        code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
+      } else {
+        throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+      }
+    }
+
+    return String.fromCharCode(code);
+  }
+
+  function scanUnicodeCodePointEscape() {
+    var ch, code, cu1, cu2;
+    ch = source[index];
+    code = 0; // At least, one hex digit is required.
+
+    if (ch === '}') {
+      throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+    }
+
+    while (index < length) {
+      ch = source[index++];
+
+      if (!isHexDigit(ch)) {
+        break;
+      }
+
+      code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
+    }
+
+    if (code > 0x10FFFF || ch !== '}') {
+      throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+    } // UTF-16 Encoding
+
+
+    if (code <= 0xFFFF) {
+      return String.fromCharCode(code);
+    }
+
+    cu1 = (code - 0x10000 >> 10) + 0xD800;
+    cu2 = (code - 0x10000 & 1023) + 0xDC00;
+    return String.fromCharCode(cu1, cu2);
+  }
+
+  function getEscapedIdentifier() {
+    var ch, id;
+    ch = source.charCodeAt(index++);
+    id = String.fromCharCode(ch); // '\u' (U+005C, U+0075) denotes an escaped character.
+
+    if (ch === 0x5C) {
+      if (source.charCodeAt(index) !== 0x75) {
+        throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+      }
+
+      ++index;
+      ch = scanHexEscape('u');
+
+      if (!ch || ch === '\\' || !isIdentifierStart(ch.charCodeAt(0))) {
+        throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+      }
+
+      id = ch;
+    }
+
+    while (index < length) {
+      ch = source.charCodeAt(index);
+
+      if (!isIdentifierPart(ch)) {
+        break;
+      }
+
+      ++index;
+      id += String.fromCharCode(ch); // '\u' (U+005C, U+0075) denotes an escaped character.
+
+      if (ch === 0x5C) {
+        id = id.substr(0, id.length - 1);
+
+        if (source.charCodeAt(index) !== 0x75) {
+          throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+        }
+
+        ++index;
+        ch = scanHexEscape('u');
+
+        if (!ch || ch === '\\' || !isIdentifierPart(ch.charCodeAt(0))) {
+          throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+        }
+
+        id += ch;
+      }
+    }
+
+    return id;
+  }
+
+  function getIdentifier() {
+    var start, ch;
+    start = index++;
+
+    while (index < length) {
+      ch = source.charCodeAt(index);
+
+      if (ch === 0x5C) {
+        // Blackslash (U+005C) marks Unicode escape sequence.
+        index = start;
+        return getEscapedIdentifier();
+      }
+
+      if (isIdentifierPart(ch)) {
+        ++index;
+      } else {
+        break;
+      }
+    }
+
+    return source.slice(start, index);
+  }
+
+  function scanIdentifier() {
+    var start, id, type;
+    start = index; // Backslash (U+005C) starts an escaped character.
+
+    id = source.charCodeAt(index) === 0x5C ? getEscapedIdentifier() : getIdentifier(); // There is no keyword or literal with only one character.
+    // Thus, it must be an identifier.
+
+    if (id.length === 1) {
+      type = TokenIdentifier;
+    } else if (keywords.hasOwnProperty(id)) {
+      // eslint-disable-line no-prototype-builtins
+      type = TokenKeyword;
+    } else if (id === 'null') {
+      type = TokenNullLiteral;
+    } else if (id === 'true' || id === 'false') {
+      type = TokenBooleanLiteral;
+    } else {
+      type = TokenIdentifier;
+    }
+
+    return {
+      type: type,
+      value: id,
+      start: start,
+      end: index
+    };
+  } // 7.7 Punctuators
+
+
+  function scanPunctuator() {
+    var start = index,
+        code = source.charCodeAt(index),
+        code2,
+        ch1 = source[index],
+        ch2,
+        ch3,
+        ch4;
+
+    switch (code) {
+      // Check for most common single-character punctuators.
+      case 0x2E: // . dot
+
+      case 0x28: // ( open bracket
+
+      case 0x29: // ) close bracket
+
+      case 0x3B: // ; semicolon
+
+      case 0x2C: // , comma
+
+      case 0x7B: // { open curly brace
+
+      case 0x7D: // } close curly brace
+
+      case 0x5B: // [
+
+      case 0x5D: // ]
+
+      case 0x3A: // :
+
+      case 0x3F: // ?
+
+      case 0x7E:
+        // ~
+        ++index;
+        return {
+          type: TokenPunctuator,
+          value: String.fromCharCode(code),
+          start: start,
+          end: index
+        };
+
+      default:
+        code2 = source.charCodeAt(index + 1); // '=' (U+003D) marks an assignment or comparison operator.
+
+        if (code2 === 0x3D) {
+          switch (code) {
+            case 0x2B: // +
+
+            case 0x2D: // -
+
+            case 0x2F: // /
+
+            case 0x3C: // <
+
+            case 0x3E: // >
+
+            case 0x5E: // ^
+
+            case 0x7C: // |
+
+            case 0x25: // %
+
+            case 0x26: // &
+
+            case 0x2A:
+              // *
+              index += 2;
+              return {
+                type: TokenPunctuator,
+                value: String.fromCharCode(code) + String.fromCharCode(code2),
+                start: start,
+                end: index
+              };
+
+            case 0x21: // !
+
+            case 0x3D:
+              // =
+              index += 2; // !== and ===
+
+              if (source.charCodeAt(index) === 0x3D) {
+                ++index;
+              }
+
+              return {
+                type: TokenPunctuator,
+                value: source.slice(start, index),
+                start: start,
+                end: index
+              };
+          }
+        }
+
+    } // 4-character punctuator: >>>=
+
+
+    ch4 = source.substr(index, 4);
+
+    if (ch4 === '>>>=') {
+      index += 4;
+      return {
+        type: TokenPunctuator,
+        value: ch4,
+        start: start,
+        end: index
+      };
+    } // 3-character punctuators: === !== >>> <<= >>=
+
+
+    ch3 = ch4.substr(0, 3);
+
+    if (ch3 === '>>>' || ch3 === '<<=' || ch3 === '>>=') {
+      index += 3;
+      return {
+        type: TokenPunctuator,
+        value: ch3,
+        start: start,
+        end: index
+      };
+    } // Other 2-character punctuators: ++ -- << >> && ||
+
+
+    ch2 = ch3.substr(0, 2);
+
+    if (ch1 === ch2[1] && '+-<>&|'.indexOf(ch1) >= 0 || ch2 === '=>') {
+      index += 2;
+      return {
+        type: TokenPunctuator,
+        value: ch2,
+        start: start,
+        end: index
+      };
+    }
+
+    if (ch2 === '//') {
+      throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+    } // 1-character punctuators: < > = ! + - * % & | ^ /
+
+
+    if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) {
+      ++index;
+      return {
+        type: TokenPunctuator,
+        value: ch1,
+        start: start,
+        end: index
+      };
+    }
+
+    throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+  } // 7.8.3 Numeric Literals
+
+
+  function scanHexLiteral(start) {
+    let number = '';
+
+    while (index < length) {
+      if (!isHexDigit(source[index])) {
+        break;
+      }
+
+      number += source[index++];
+    }
+
+    if (number.length === 0) {
+      throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+    }
+
+    if (isIdentifierStart(source.charCodeAt(index))) {
+      throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+    }
+
+    return {
+      type: TokenNumericLiteral,
+      value: parseInt('0x' + number, 16),
+      start: start,
+      end: index
+    };
+  }
+
+  function scanOctalLiteral(start) {
+    let number = '0' + source[index++];
+
+    while (index < length) {
+      if (!isOctalDigit(source[index])) {
+        break;
+      }
+
+      number += source[index++];
+    }
+
+    if (isIdentifierStart(source.charCodeAt(index)) || isDecimalDigit(source.charCodeAt(index))) {
+      throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+    }
+
+    return {
+      type: TokenNumericLiteral,
+      value: parseInt(number, 8),
+      octal: true,
+      start: start,
+      end: index
+    };
+  }
+
+  function scanNumericLiteral() {
+    var number, start, ch;
+    ch = source[index];
+    assert(isDecimalDigit(ch.charCodeAt(0)) || ch === '.', 'Numeric literal must start with a decimal digit or a decimal point');
+    start = index;
+    number = '';
+
+    if (ch !== '.') {
+      number = source[index++];
+      ch = source[index]; // Hex number starts with '0x'.
+      // Octal number starts with '0'.
+
+      if (number === '0') {
+        if (ch === 'x' || ch === 'X') {
+          ++index;
+          return scanHexLiteral(start);
+        }
+
+        if (isOctalDigit(ch)) {
+          return scanOctalLiteral(start);
+        } // decimal number starts with '0' such as '09' is illegal.
+
+
+        if (ch && isDecimalDigit(ch.charCodeAt(0))) {
+          throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+        }
+      }
+
+      while (isDecimalDigit(source.charCodeAt(index))) {
+        number += source[index++];
+      }
+
+      ch = source[index];
+    }
+
+    if (ch === '.') {
+      number += source[index++];
+
+      while (isDecimalDigit(source.charCodeAt(index))) {
+        number += source[index++];
+      }
+
+      ch = source[index];
+    }
+
+    if (ch === 'e' || ch === 'E') {
+      number += source[index++];
+      ch = source[index];
+
+      if (ch === '+' || ch === '-') {
+        number += source[index++];
+      }
+
+      if (isDecimalDigit(source.charCodeAt(index))) {
+        while (isDecimalDigit(source.charCodeAt(index))) {
+          number += source[index++];
+        }
+      } else {
+        throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+      }
+    }
+
+    if (isIdentifierStart(source.charCodeAt(index))) {
+      throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+    }
+
+    return {
+      type: TokenNumericLiteral,
+      value: parseFloat(number),
+      start: start,
+      end: index
+    };
+  } // 7.8.4 String Literals
+
+
+  function scanStringLiteral() {
+    var str = '',
+        quote,
+        start,
+        ch,
+        code,
+        octal = false;
+    quote = source[index];
+    assert(quote === '\'' || quote === '"', 'String literal must starts with a quote');
+    start = index;
+    ++index;
+
+    while (index < length) {
+      ch = source[index++];
+
+      if (ch === quote) {
+        quote = '';
+        break;
+      } else if (ch === '\\') {
+        ch = source[index++];
+
+        if (!ch || !isLineTerminator(ch.charCodeAt(0))) {
+          switch (ch) {
+            case 'u':
+            case 'x':
+              if (source[index] === '{') {
+                ++index;
+                str += scanUnicodeCodePointEscape();
+              } else {
+                str += scanHexEscape(ch);
+              }
+
+              break;
+
+            case 'n':
+              str += '\n';
+              break;
+
+            case 'r':
+              str += '\r';
+              break;
+
+            case 't':
+              str += '\t';
+              break;
+
+            case 'b':
+              str += '\b';
+              break;
+
+            case 'f':
+              str += '\f';
+              break;
+
+            case 'v':
+              str += '\x0B';
+              break;
+
+            default:
+              if (isOctalDigit(ch)) {
+                code = '01234567'.indexOf(ch); // \0 is not octal escape sequence
+
+                if (code !== 0) {
+                  octal = true;
+                }
+
+                if (index < length && isOctalDigit(source[index])) {
+                  octal = true;
+                  code = code * 8 + '01234567'.indexOf(source[index++]); // 3 digits are only allowed when string starts
+                  // with 0, 1, 2, 3
+
+                  if ('0123'.indexOf(ch) >= 0 && index < length && isOctalDigit(source[index])) {
+                    code = code * 8 + '01234567'.indexOf(source[index++]);
+                  }
+                }
+
+                str += String.fromCharCode(code);
+              } else {
+                str += ch;
+              }
+
+              break;
+          }
+        } else {
+          if (ch === '\r' && source[index] === '\n') {
+            ++index;
+          }
+        }
+      } else if (isLineTerminator(ch.charCodeAt(0))) {
+        break;
+      } else {
+        str += ch;
+      }
+    }
+
+    if (quote !== '') {
+      throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+    }
+
+    return {
+      type: TokenStringLiteral,
+      value: str,
+      octal: octal,
+      start: start,
+      end: index
+    };
+  }
+
+  function testRegExp(pattern, flags) {
+    let tmp = pattern;
+
+    if (flags.indexOf('u') >= 0) {
+      // Replace each astral symbol and every Unicode code point
+      // escape sequence with a single ASCII symbol to avoid throwing on
+      // regular expressions that are only valid in combination with the
+      // `/u` flag.
+      // Note: replacing with the ASCII symbol `x` might cause false
+      // negatives in unlikely scenarios. For example, `[\u{61}-b]` is a
+      // perfectly valid pattern that is equivalent to `[a-b]`, but it
+      // would be replaced by `[x-b]` which throws an error.
+      tmp = tmp.replace(/\\u\{([0-9a-fA-F]+)\}/g, ($0, $1) => {
+        if (parseInt($1, 16) <= 0x10FFFF) {
+          return 'x';
+        }
+
+        throwError({}, MessageInvalidRegExp);
+      }).replace(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g, 'x');
+    } // First, detect invalid regular expressions.
+
+
+    try {
+      new RegExp(tmp);
+    } catch (e) {
+      throwError({}, MessageInvalidRegExp);
+    } // Return a regular expression object for this pattern-flag pair, or
+    // `null` in case the current environment doesn't support the flags it
+    // uses.
+
+
+    try {
+      return new RegExp(pattern, flags);
+    } catch (exception) {
+      return null;
+    }
+  }
+
+  function scanRegExpBody() {
+    var ch, str, classMarker, terminated, body;
+    ch = source[index];
+    assert(ch === '/', 'Regular expression literal must start with a slash');
+    str = source[index++];
+    classMarker = false;
+    terminated = false;
+
+    while (index < length) {
+      ch = source[index++];
+      str += ch;
+
+      if (ch === '\\') {
+        ch = source[index++]; // ECMA-262 7.8.5
+
+        if (isLineTerminator(ch.charCodeAt(0))) {
+          throwError({}, MessageUnterminatedRegExp);
+        }
+
+        str += ch;
+      } else if (isLineTerminator(ch.charCodeAt(0))) {
+        throwError({}, MessageUnterminatedRegExp);
+      } else if (classMarker) {
+        if (ch === ']') {
+          classMarker = false;
+        }
+      } else {
+        if (ch === '/') {
+          terminated = true;
+          break;
+        } else if (ch === '[') {
+          classMarker = true;
+        }
+      }
+    }
+
+    if (!terminated) {
+      throwError({}, MessageUnterminatedRegExp);
+    } // Exclude leading and trailing slash.
+
+
+    body = str.substr(1, str.length - 2);
+    return {
+      value: body,
+      literal: str
+    };
+  }
+
+  function scanRegExpFlags() {
+    var ch, str, flags;
+    str = '';
+    flags = '';
+
+    while (index < length) {
+      ch = source[index];
+
+      if (!isIdentifierPart(ch.charCodeAt(0))) {
+        break;
+      }
+
+      ++index;
+
+      if (ch === '\\' && index < length) {
+        throwError({}, MessageUnexpectedToken, ILLEGAL$1);
+      } else {
+        flags += ch;
+        str += ch;
+      }
+    }
+
+    if (flags.search(/[^gimuy]/g) >= 0) {
+      throwError({}, MessageInvalidRegExp, flags);
+    }
+
+    return {
+      value: flags,
+      literal: str
+    };
+  }
+
+  function scanRegExp() {
+    var start, body, flags, value;
+    lookahead = null;
+    skipComment();
+    start = index;
+    body = scanRegExpBody();
+    flags = scanRegExpFlags();
+    value = testRegExp(body.value, flags.value);
+    return {
+      literal: body.literal + flags.literal,
+      value: value,
+      regex: {
+        pattern: body.value,
+        flags: flags.value
+      },
+      start: start,
+      end: index
+    };
+  }
+
+  function isIdentifierName(token) {
+    return token.type === TokenIdentifier || token.type === TokenKeyword || token.type === TokenBooleanLiteral || token.type === TokenNullLiteral;
+  }
+
+  function advance() {
+    skipComment();
+
+    if (index >= length) {
+      return {
+        type: TokenEOF,
+        start: index,
+        end: index
+      };
+    }
+
+    const ch = source.charCodeAt(index);
+
+    if (isIdentifierStart(ch)) {
+      return scanIdentifier();
+    } // Very common: ( and ) and ;
+
+
+    if (ch === 0x28 || ch === 0x29 || ch === 0x3B) {
+      return scanPunctuator();
+    } // String literal starts with single quote (U+0027) or double quote (U+0022).
+
+
+    if (ch === 0x27 || ch === 0x22) {
+      return scanStringLiteral();
+    } // Dot (.) U+002E can also start a floating-point number, hence the need
+    // to check the next character.
+
+
+    if (ch === 0x2E) {
+      if (isDecimalDigit(source.charCodeAt(index + 1))) {
+        return scanNumericLiteral();
+      }
+
+      return scanPunctuator();
+    }
+
+    if (isDecimalDigit(ch)) {
+      return scanNumericLiteral();
+    }
+
+    return scanPunctuator();
+  }
+
+  function lex() {
+    const token = lookahead;
+    index = token.end;
+    lookahead = advance();
+    index = token.end;
+    return token;
+  }
+
+  function peek() {
+    const pos = index;
+    lookahead = advance();
+    index = pos;
+  }
+
+  function finishArrayExpression(elements) {
+    const node = new ASTNode(SyntaxArrayExpression);
+    node.elements = elements;
+    return node;
+  }
+
+  function finishBinaryExpression(operator, left, right) {
+    const node = new ASTNode(operator === '||' || operator === '&&' ? SyntaxLogicalExpression : SyntaxBinaryExpression);
+    node.operator = operator;
+    node.left = left;
+    node.right = right;
+    return node;
+  }
+
+  function finishCallExpression(callee, args) {
+    const node = new ASTNode(SyntaxCallExpression);
+    node.callee = callee;
+    node.arguments = args;
+    return node;
+  }
+
+  function finishConditionalExpression(test, consequent, alternate) {
+    const node = new ASTNode(SyntaxConditionalExpression);
+    node.test = test;
+    node.consequent = consequent;
+    node.alternate = alternate;
+    return node;
+  }
+
+  function finishIdentifier(name) {
+    const node = new ASTNode(SyntaxIdentifier);
+    node.name = name;
+    return node;
+  }
+
+  function finishLiteral(token) {
+    const node = new ASTNode(SyntaxLiteral);
+    node.value = token.value;
+    node.raw = source.slice(token.start, token.end);
+
+    if (token.regex) {
+      if (node.raw === '//') {
+        node.raw = '/(?:)/';
+      }
+
+      node.regex = token.regex;
+    }
+
+    return node;
+  }
+
+  function finishMemberExpression(accessor, object, property) {
+    const node = new ASTNode(SyntaxMemberExpression);
+    node.computed = accessor === '[';
+    node.object = object;
+    node.property = property;
+    if (!node.computed) property.member = true;
+    return node;
+  }
+
+  function finishObjectExpression(properties) {
+    const node = new ASTNode(SyntaxObjectExpression);
+    node.properties = properties;
+    return node;
+  }
+
+  function finishProperty(kind, key, value) {
+    const node = new ASTNode(SyntaxProperty);
+    node.key = key;
+    node.value = value;
+    node.kind = kind;
+    return node;
+  }
+
+  function finishUnaryExpression(operator, argument) {
+    const node = new ASTNode(SyntaxUnaryExpression);
+    node.operator = operator;
+    node.argument = argument;
+    node.prefix = true;
+    return node;
+  } // Throw an exception
+
+
+  function throwError(token, messageFormat) {
+    var error,
+        args = Array.prototype.slice.call(arguments, 2),
+        msg = messageFormat.replace(/%(\d)/g, (whole, index) => {
+      assert(index < args.length, 'Message reference must be in range');
+      return args[index];
+    });
+    error = new Error(msg);
+    error.index = index;
+    error.description = msg;
+    throw error;
+  } // Throw an exception because of the token.
+
+
+  function throwUnexpected(token) {
+    if (token.type === TokenEOF) {
+      throwError(token, MessageUnexpectedEOS);
+    }
+
+    if (token.type === TokenNumericLiteral) {
+      throwError(token, MessageUnexpectedNumber);
+    }
+
+    if (token.type === TokenStringLiteral) {
+      throwError(token, MessageUnexpectedString);
+    }
+
+    if (token.type === TokenIdentifier) {
+      throwError(token, MessageUnexpectedIdentifier);
+    }
+
+    if (token.type === TokenKeyword) {
+      throwError(token, MessageUnexpectedReserved);
+    } // BooleanLiteral, NullLiteral, or Punctuator.
+
+
+    throwError(token, MessageUnexpectedToken, token.value);
+  } // Expect the next token to match the specified punctuator.
+  // If not, an exception will be thrown.
+
+
+  function expect(value) {
+    const token = lex();
+
+    if (token.type !== TokenPunctuator || token.value !== value) {
+      throwUnexpected(token);
+    }
+  } // Return true if the next token matches the specified punctuator.
+
+
+  function match(value) {
+    return lookahead.type === TokenPunctuator && lookahead.value === value;
+  } // Return true if the next token matches the specified keyword
+
+
+  function matchKeyword(keyword) {
+    return lookahead.type === TokenKeyword && lookahead.value === keyword;
+  } // 11.1.4 Array Initialiser
+
+
+  function parseArrayInitialiser() {
+    const elements = [];
+    index = lookahead.start;
+    expect('[');
+
+    while (!match(']')) {
+      if (match(',')) {
+        lex();
+        elements.push(null);
+      } else {
+        elements.push(parseConditionalExpression());
+
+        if (!match(']')) {
+          expect(',');
+        }
+      }
+    }
+
+    lex();
+    return finishArrayExpression(elements);
+  } // 11.1.5 Object Initialiser
+
+
+  function parseObjectPropertyKey() {
+    index = lookahead.start;
+    const token = lex(); // Note: This function is called only from parseObjectProperty(), where
+    // EOF and Punctuator tokens are already filtered out.
+
+    if (token.type === TokenStringLiteral || token.type === TokenNumericLiteral) {
+      if (token.octal) {
+        throwError(token, MessageStrictOctalLiteral);
+      }
+
+      return finishLiteral(token);
+    }
+
+    return finishIdentifier(token.value);
+  }
+
+  function parseObjectProperty() {
+    var token, key, id, value;
+    index = lookahead.start;
+    token = lookahead;
+
+    if (token.type === TokenIdentifier) {
+      id = parseObjectPropertyKey();
+      expect(':');
+      value = parseConditionalExpression();
+      return finishProperty('init', id, value);
+    }
+
+    if (token.type === TokenEOF || token.type === TokenPunctuator) {
+      throwUnexpected(token);
+    } else {
+      key = parseObjectPropertyKey();
+      expect(':');
+      value = parseConditionalExpression();
+      return finishProperty('init', key, value);
+    }
+  }
+
+  function parseObjectInitialiser() {
+    var properties = [],
+        property,
+        name,
+        key,
+        map = {},
+        toString = String;
+    index = lookahead.start;
+    expect('{');
+
+    while (!match('}')) {
+      property = parseObjectProperty();
+
+      if (property.key.type === SyntaxIdentifier) {
+        name = property.key.name;
+      } else {
+        name = toString(property.key.value);
+      }
+
+      key = '$' + name;
+
+      if (Object.prototype.hasOwnProperty.call(map, key)) {
+        throwError({}, MessageStrictDuplicateProperty);
+      } else {
+        map[key] = true;
+      }
+
+      properties.push(property);
+
+      if (!match('}')) {
+        expect(',');
+      }
+    }
+
+    expect('}');
+    return finishObjectExpression(properties);
+  } // 11.1.6 The Grouping Operator
+
+
+  function parseGroupExpression() {
+    expect('(');
+    const expr = parseExpression();
+    expect(')');
+    return expr;
+  } // 11.1 Primary Expressions
+
+
+  const legalKeywords = {
+    'if': 1
+  };
+
+  function parsePrimaryExpression() {
+    var type, token, expr;
+
+    if (match('(')) {
+      return parseGroupExpression();
+    }
+
+    if (match('[')) {
+      return parseArrayInitialiser();
+    }
+
+    if (match('{')) {
+      return parseObjectInitialiser();
+    }
+
+    type = lookahead.type;
+    index = lookahead.start;
+
+    if (type === TokenIdentifier || legalKeywords[lookahead.value]) {
+      expr = finishIdentifier(lex().value);
+    } else if (type === TokenStringLiteral || type === TokenNumericLiteral) {
+      if (lookahead.octal) {
+        throwError(lookahead, MessageStrictOctalLiteral);
+      }
+
+      expr = finishLiteral(lex());
+    } else if (type === TokenKeyword) {
+      throw new Error(DISABLED);
+    } else if (type === TokenBooleanLiteral) {
+      token = lex();
+      token.value = token.value === 'true';
+      expr = finishLiteral(token);
+    } else if (type === TokenNullLiteral) {
+      token = lex();
+      token.value = null;
+      expr = finishLiteral(token);
+    } else if (match('/') || match('/=')) {
+      expr = finishLiteral(scanRegExp());
+      peek();
+    } else {
+      throwUnexpected(lex());
+    }
+
+    return expr;
+  } // 11.2 Left-Hand-Side Expressions
+
+
+  function parseArguments() {
+    const args = [];
+    expect('(');
+
+    if (!match(')')) {
+      while (index < length) {
+        args.push(parseConditionalExpression());
+
+        if (match(')')) {
+          break;
+        }
+
+        expect(',');
+      }
+    }
+
+    expect(')');
+    return args;
+  }
+
+  function parseNonComputedProperty() {
+    index = lookahead.start;
+    const token = lex();
+
+    if (!isIdentifierName(token)) {
+      throwUnexpected(token);
+    }
+
+    return finishIdentifier(token.value);
+  }
+
+  function parseNonComputedMember() {
+    expect('.');
+    return parseNonComputedProperty();
+  }
+
+  function parseComputedMember() {
+    expect('[');
+    const expr = parseExpression();
+    expect(']');
+    return expr;
+  }
+
+  function parseLeftHandSideExpressionAllowCall() {
+    var expr, args, property;
+    expr = parsePrimaryExpression();
+
+    for (;;) {
+      if (match('.')) {
+        property = parseNonComputedMember();
+        expr = finishMemberExpression('.', expr, property);
+      } else if (match('(')) {
+        args = parseArguments();
+        expr = finishCallExpression(expr, args);
+      } else if (match('[')) {
+        property = parseComputedMember();
+        expr = finishMemberExpression('[', expr, property);
+      } else {
+        break;
+      }
+    }
+
+    return expr;
+  } // 11.3 Postfix Expressions
+
+
+  function parsePostfixExpression() {
+    const expr = parseLeftHandSideExpressionAllowCall();
+
+    if (lookahead.type === TokenPunctuator) {
+      if (match('++') || match('--')) {
+        throw new Error(DISABLED);
+      }
+    }
+
+    return expr;
+  } // 11.4 Unary Operators
+
+
+  function parseUnaryExpression() {
+    var token, expr;
+
+    if (lookahead.type !== TokenPunctuator && lookahead.type !== TokenKeyword) {
+      expr = parsePostfixExpression();
+    } else if (match('++') || match('--')) {
+      throw new Error(DISABLED);
+    } else if (match('+') || match('-') || match('~') || match('!')) {
+      token = lex();
+      expr = parseUnaryExpression();
+      expr = finishUnaryExpression(token.value, expr);
+    } else if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) {
+      throw new Error(DISABLED);
+    } else {
+      expr = parsePostfixExpression();
+    }
+
+    return expr;
+  }
+
+  function binaryPrecedence(token) {
+    let prec = 0;
+
+    if (token.type !== TokenPunctuator && token.type !== TokenKeyword) {
+      return 0;
+    }
+
+    switch (token.value) {
+      case '||':
+        prec = 1;
+        break;
+
+      case '&&':
+        prec = 2;
+        break;
+
+      case '|':
+        prec = 3;
+        break;
+
+      case '^':
+        prec = 4;
+        break;
+
+      case '&':
+        prec = 5;
+        break;
+
+      case '==':
+      case '!=':
+      case '===':
+      case '!==':
+        prec = 6;
+        break;
+
+      case '<':
+      case '>':
+      case '<=':
+      case '>=':
+      case 'instanceof':
+      case 'in':
+        prec = 7;
+        break;
+
+      case '<<':
+      case '>>':
+      case '>>>':
+        prec = 8;
+        break;
+
+      case '+':
+      case '-':
+        prec = 9;
+        break;
+
+      case '*':
+      case '/':
+      case '%':
+        prec = 11;
+        break;
+    }
+
+    return prec;
+  } // 11.5 Multiplicative Operators
+  // 11.6 Additive Operators
+  // 11.7 Bitwise Shift Operators
+  // 11.8 Relational Operators
+  // 11.9 Equality Operators
+  // 11.10 Binary Bitwise Operators
+  // 11.11 Binary Logical Operators
+
+
+  function parseBinaryExpression() {
+    var marker, markers, expr, token, prec, stack, right, operator, left, i;
+    marker = lookahead;
+    left = parseUnaryExpression();
+    token = lookahead;
+    prec = binaryPrecedence(token);
+
+    if (prec === 0) {
+      return left;
+    }
+
+    token.prec = prec;
+    lex();
+    markers = [marker, lookahead];
+    right = parseUnaryExpression();
+    stack = [left, token, right];
+
+    while ((prec = binaryPrecedence(lookahead)) > 0) {
+      // Reduce: make a binary expression from the three topmost entries.
+      while (stack.length > 2 && prec <= stack[stack.length - 2].prec) {
+        right = stack.pop();
+        operator = stack.pop().value;
+        left = stack.pop();
+        markers.pop();
+        expr = finishBinaryExpression(operator, left, right);
+        stack.push(expr);
+      } // Shift.
+
+
+      token = lex();
+      token.prec = prec;
+      stack.push(token);
+      markers.push(lookahead);
+      expr = parseUnaryExpression();
+      stack.push(expr);
+    } // Final reduce to clean-up the stack.
+
+
+    i = stack.length - 1;
+    expr = stack[i];
+    markers.pop();
+
+    while (i > 1) {
+      markers.pop();
+      expr = finishBinaryExpression(stack[i - 1].value, stack[i - 2], expr);
+      i -= 2;
+    }
+
+    return expr;
+  } // 11.12 Conditional Operator
+
+
+  function parseConditionalExpression() {
+    var expr, consequent, alternate;
+    expr = parseBinaryExpression();
+
+    if (match('?')) {
+      lex();
+      consequent = parseConditionalExpression();
+      expect(':');
+      alternate = parseConditionalExpression();
+      expr = finishConditionalExpression(expr, consequent, alternate);
+    }
+
+    return expr;
+  } // 11.14 Comma Operator
+
+
+  function parseExpression() {
+    const expr = parseConditionalExpression();
+
+    if (match(',')) {
+      throw new Error(DISABLED); // no sequence expressions
+    }
+
+    return expr;
+  }
+
+  function parser$1(code) {
+    source = code;
+    index = 0;
+    length = source.length;
+    lookahead = null;
+    peek();
+    const expr = parseExpression();
+
+    if (lookahead.type !== TokenEOF) {
+      throw new Error('Unexpect token after expression.');
+    }
+
+    return expr;
+  }
+
+  var Constants = {
+    NaN: 'NaN',
+    E: 'Math.E',
+    LN2: 'Math.LN2',
+    LN10: 'Math.LN10',
+    LOG2E: 'Math.LOG2E',
+    LOG10E: 'Math.LOG10E',
+    PI: 'Math.PI',
+    SQRT1_2: 'Math.SQRT1_2',
+    SQRT2: 'Math.SQRT2',
+    MIN_VALUE: 'Number.MIN_VALUE',
+    MAX_VALUE: 'Number.MAX_VALUE'
+  };
+
+  function Functions(codegen) {
+    function fncall(name, args, cast, type) {
+      let obj = codegen(args[0]);
+
+      if (cast) {
+        obj = cast + '(' + obj + ')';
+        if (cast.lastIndexOf('new ', 0) === 0) obj = '(' + obj + ')';
+      }
+
+      return obj + '.' + name + (type < 0 ? '' : type === 0 ? '()' : '(' + args.slice(1).map(codegen).join(',') + ')');
+    }
+
+    function fn(name, cast, type) {
+      return args => fncall(name, args, cast, type);
+    }
+
+    const DATE = 'new Date',
+          STRING = 'String',
+          REGEXP = 'RegExp';
+    return {
+      // MATH functions
+      isNaN: 'Number.isNaN',
+      isFinite: 'Number.isFinite',
+      abs: 'Math.abs',
+      acos: 'Math.acos',
+      asin: 'Math.asin',
+      atan: 'Math.atan',
+      atan2: 'Math.atan2',
+      ceil: 'Math.ceil',
+      cos: 'Math.cos',
+      exp: 'Math.exp',
+      floor: 'Math.floor',
+      log: 'Math.log',
+      max: 'Math.max',
+      min: 'Math.min',
+      pow: 'Math.pow',
+      random: 'Math.random',
+      round: 'Math.round',
+      sin: 'Math.sin',
+      sqrt: 'Math.sqrt',
+      tan: 'Math.tan',
+      clamp: function (args) {
+        if (args.length < 3) error('Missing arguments to clamp function.');
+        if (args.length > 3) error('Too many arguments to clamp function.');
+        const a = args.map(codegen);
+        return 'Math.max(' + a[1] + ', Math.min(' + a[2] + ',' + a[0] + '))';
+      },
+      // DATE functions
+      now: 'Date.now',
+      utc: 'Date.UTC',
+      datetime: DATE,
+      date: fn('getDate', DATE, 0),
+      day: fn('getDay', DATE, 0),
+      year: fn('getFullYear', DATE, 0),
+      month: fn('getMonth', DATE, 0),
+      hours: fn('getHours', DATE, 0),
+      minutes: fn('getMinutes', DATE, 0),
+      seconds: fn('getSeconds', DATE, 0),
+      milliseconds: fn('getMilliseconds', DATE, 0),
+      time: fn('getTime', DATE, 0),
+      timezoneoffset: fn('getTimezoneOffset', DATE, 0),
+      utcdate: fn('getUTCDate', DATE, 0),
+      utcday: fn('getUTCDay', DATE, 0),
+      utcyear: fn('getUTCFullYear', DATE, 0),
+      utcmonth: fn('getUTCMonth', DATE, 0),
+      utchours: fn('getUTCHours', DATE, 0),
+      utcminutes: fn('getUTCMinutes', DATE, 0),
+      utcseconds: fn('getUTCSeconds', DATE, 0),
+      utcmilliseconds: fn('getUTCMilliseconds', DATE, 0),
+      // sequence functions
+      length: fn('length', null, -1),
+      // STRING functions
+      parseFloat: 'parseFloat',
+      parseInt: 'parseInt',
+      upper: fn('toUpperCase', STRING, 0),
+      lower: fn('toLowerCase', STRING, 0),
+      substring: fn('substring', STRING),
+      split: fn('split', STRING),
+      trim: fn('trim', STRING, 0),
+      // REGEXP functions
+      regexp: REGEXP,
+      test: fn('test', REGEXP),
+      // Control Flow functions
+      if: function (args) {
+        if (args.length < 3) error('Missing arguments to if function.');
+        if (args.length > 3) error('Too many arguments to if function.');
+        const a = args.map(codegen);
+        return '(' + a[0] + '?' + a[1] + ':' + a[2] + ')';
+      }
+    };
+  }
+
+  function stripQuotes(s) {
+    const n = s && s.length - 1;
+    return n && (s[0] === '"' && s[n] === '"' || s[0] === '\'' && s[n] === '\'') ? s.slice(1, -1) : s;
+  }
+
+  function codegen(opt) {
+    opt = opt || {};
+    const allowed = opt.allowed ? toSet(opt.allowed) : {},
+          forbidden = opt.forbidden ? toSet(opt.forbidden) : {},
+          constants = opt.constants || Constants,
+          functions = (opt.functions || Functions)(visit),
+          globalvar = opt.globalvar,
+          fieldvar = opt.fieldvar,
+          outputGlobal = isFunction(globalvar) ? globalvar : id => `${globalvar}["${id}"]`;
+    let globals = {},
+        fields = {},
+        memberDepth = 0;
+
+    function visit(ast) {
+      if (isString(ast)) return ast;
+      const generator = Generators[ast.type];
+      if (generator == null) error('Unsupported type: ' + ast.type);
+      return generator(ast);
+    }
+
+    const Generators = {
+      Literal: n => n.raw,
+      Identifier: n => {
+        const id = n.name;
+
+        if (memberDepth > 0) {
+          return id;
+        } else if (has$1(forbidden, id)) {
+          return error('Illegal identifier: ' + id);
+        } else if (has$1(constants, id)) {
+          return constants[id];
+        } else if (has$1(allowed, id)) {
+          return id;
+        } else {
+          globals[id] = 1;
+          return outputGlobal(id);
+        }
+      },
+      MemberExpression: n => {
+        const d = !n.computed,
+              o = visit(n.object);
+        if (d) memberDepth += 1;
+        const p = visit(n.property);
+
+        if (o === fieldvar) {
+          // strip quotes to sanitize field name (#1653)
+          fields[stripQuotes(p)] = 1;
+        }
+
+        if (d) memberDepth -= 1;
+        return o + (d ? '.' + p : '[' + p + ']');
+      },
+      CallExpression: n => {
+        if (n.callee.type !== 'Identifier') {
+          error('Illegal callee type: ' + n.callee.type);
+        }
+
+        const callee = n.callee.name,
+              args = n.arguments,
+              fn = has$1(functions, callee) && functions[callee];
+        if (!fn) error('Unrecognized function: ' + callee);
+        return isFunction(fn) ? fn(args) : fn + '(' + args.map(visit).join(',') + ')';
+      },
+      ArrayExpression: n => '[' + n.elements.map(visit).join(',') + ']',
+      BinaryExpression: n => '(' + visit(n.left) + ' ' + n.operator + ' ' + visit(n.right) + ')',
+      UnaryExpression: n => '(' + n.operator + visit(n.argument) + ')',
+      ConditionalExpression: n => '(' + visit(n.test) + '?' + visit(n.consequent) + ':' + visit(n.alternate) + ')',
+      LogicalExpression: n => '(' + visit(n.left) + n.operator + visit(n.right) + ')',
+      ObjectExpression: n => '{' + n.properties.map(visit).join(',') + '}',
+      Property: n => {
+        memberDepth += 1;
+        const k = visit(n.key);
+        memberDepth -= 1;
+        return k + ':' + visit(n.value);
+      }
+    };
+
+    function codegen(ast) {
+      const result = {
+        code: visit(ast),
+        globals: Object.keys(globals),
+        fields: Object.keys(fields)
+      };
+      globals = {};
+      fields = {};
+      return result;
+    }
+
+    codegen.functions = functions;
+    codegen.constants = constants;
+    return codegen;
+  }
+
+  function ascending(a, b) {
+    return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
+  }
+
+  function bisector(f) {
+    let delta = f;
+    let compare = f;
+
+    if (f.length === 1) {
+      delta = (d, x) => f(d) - x;
+
+      compare = ascendingComparator(f);
+    }
+
+    function left(a, x, lo, hi) {
+      if (lo == null) lo = 0;
+      if (hi == null) hi = a.length;
+
+      while (lo < hi) {
+        const mid = lo + hi >>> 1;
+        if (compare(a[mid], x) < 0) lo = mid + 1;else hi = mid;
+      }
+
+      return lo;
+    }
+
+    function right(a, x, lo, hi) {
+      if (lo == null) lo = 0;
+      if (hi == null) hi = a.length;
+
+      while (lo < hi) {
+        const mid = lo + hi >>> 1;
+        if (compare(a[mid], x) > 0) hi = mid;else lo = mid + 1;
+      }
+
+      return lo;
+    }
+
+    function center(a, x, lo, hi) {
+      if (lo == null) lo = 0;
+      if (hi == null) hi = a.length;
+      const i = left(a, x, lo, hi - 1);
+      return i > lo && delta(a[i - 1], x) > -delta(a[i], x) ? i - 1 : i;
+    }
+
+    return {
+      left,
+      center,
+      right
+    };
+  }
+
+  function ascendingComparator(f) {
+    return (d, x) => ascending(f(d), x);
+  }
+
+  const Intersect = 'intersect';
+  const Union = 'union';
+  const VlMulti = 'vlMulti';
+  const VlPoint = 'vlPoint';
+  const Or = 'or';
+  const And = 'and';
+  const SELECTION_ID = '_vgsid_',
+        TYPE_ENUM = 'E',
+        TYPE_RANGE_INC = 'R',
+        TYPE_RANGE_EXC = 'R-E',
+        TYPE_RANGE_LE = 'R-LE',
+        TYPE_RANGE_RE = 'R-RE',
+        UNIT_INDEX = 'index:unit'; // TODO: revisit date coercion?
+
+  function testPoint(datum, entry) {
+    var fields = entry.fields,
+        values = entry.values,
+        n = fields.length,
+        i = 0,
+        dval,
+        f;
+
+    for (; i < n; ++i) {
+      f = fields[i];
+      f.getter = field$1.getter || field$1(f.field);
+      dval = f.getter(datum);
+      if (isDate$1(dval)) dval = toNumber(dval);
+      if (isDate$1(values[i])) values[i] = toNumber(values[i]);
+      if (isDate$1(values[i][0])) values[i] = values[i].map(toNumber);
+
+      if (f.type === TYPE_ENUM) {
+        // Enumerated fields can either specify individual values (single/multi selections)
+        // or an array of values (interval selections).
+        if (isArray(values[i]) ? values[i].indexOf(dval) < 0 : dval !== values[i]) {
+          return false;
+        }
+      } else {
+        if (f.type === TYPE_RANGE_INC) {
+          if (!inrange(dval, values[i])) return false;
+        } else if (f.type === TYPE_RANGE_RE) {
+          // Discrete selection of bins test within the range [bin_start, bin_end).
+          if (!inrange(dval, values[i], true, false)) return false;
+        } else if (f.type === TYPE_RANGE_EXC) {
+          // 'R-E'/'R-LE' included for completeness.
+          if (!inrange(dval, values[i], false, false)) return false;
+        } else if (f.type === TYPE_RANGE_LE) {
+          if (!inrange(dval, values[i], false, true)) return false;
+        }
+      }
+    }
+
+    return true;
+  }
+  /**
+   * Tests if a tuple is contained within an interactive selection.
+   * @param {string} name - The name of the data set representing the selection.
+   *  Tuples in the dataset are of the form
+   *  {unit: string, fields: array<fielddef>, values: array<*>}.
+   *  Fielddef is of the form
+   *  {field: string, channel: string, type: 'E' | 'R'} where
+   *  'type' identifies whether tuples in the dataset enumerate
+   *  values for the field, or specify a continuous range.
+   * @param {object} datum - The tuple to test for inclusion.
+   * @param {string} op - The set operation for combining selections.
+   *   One of 'intersect' or 'union' (default).
+   * @return {boolean} - True if the datum is in the selection, false otherwise.
+   */
+
+
+  function selectionTest(name, datum, op) {
+    var data = this.context.data[name],
+        entries = data ? data.values.value : [],
+        unitIdx = data ? data[UNIT_INDEX] && data[UNIT_INDEX].value : undefined,
+        intersect = op === Intersect,
+        n = entries.length,
+        i = 0,
+        entry,
+        miss,
+        count,
+        unit,
+        b;
+
+    for (; i < n; ++i) {
+      entry = entries[i];
+
+      if (unitIdx && intersect) {
+        // multi selections union within the same unit and intersect across units.
+        miss = miss || {};
+        count = miss[unit = entry.unit] || 0; // if we've already matched this unit, skip.
+
+        if (count === -1) continue;
+        b = testPoint(datum, entry);
+        miss[unit] = b ? -1 : ++count; // if we match and there are no other units return true
+        // if we've missed against all tuples in this unit return false
+
+        if (b && unitIdx.size === 1) return true;
+        if (!b && count === unitIdx.get(unit).count) return false;
+      } else {
+        b = testPoint(datum, entry); // if we find a miss and we do require intersection return false
+        // if we find a match and we don't require intersection return true
+
+        if (intersect ^ b) return b;
+      }
+    } // if intersecting and we made it here, then we saw no misses
+    // if not intersecting, then we saw no matches
+    // if no active selections, return false
+
+
+    return n && intersect;
+  }
+
+  const selectionId = field$1(SELECTION_ID),
+        bisect = bisector(selectionId),
+        bisectLeft = bisect.left,
+        bisectRight = bisect.right;
+
+  function selectionIdTest(name, datum, op) {
+    const data = this.context.data[name],
+          entries = data ? data.values.value : [],
+          unitIdx = data ? data[UNIT_INDEX] && data[UNIT_INDEX].value : undefined,
+          intersect = op === Intersect,
+          value = selectionId(datum),
+          index = bisectLeft(entries, value);
+    if (index === entries.length) return false;
+    if (selectionId(entries[index]) !== value) return false;
+
+    if (unitIdx && intersect) {
+      if (unitIdx.size === 1) return true;
+      if (bisectRight(entries, value) - index < unitIdx.size) return false;
+    }
+
+    return true;
+  }
+  /**
+   * Maps an array of scene graph items to an array of selection tuples.
+   * @param {string} name  - The name of the dataset representing the selection.
+   * @param {string} unit  - The name of the unit view.
+   *
+   * @returns {array} An array of selection entries for the given unit.
+   */
+
+
+  function selectionTuples(array, base) {
+    return array.map(x => extend$1({
+      values: base.fields.map(f => (f.getter || (f.getter = field$1(f.field)))(x.datum))
+    }, base));
+  }
+  /**
+   * Resolves selection for use as a scale domain or reads via the API.
+   * @param {string} name - The name of the dataset representing the selection
+   * @param {string} [op='union'] - The set operation for combining selections.
+   *                 One of 'intersect' or 'union' (default).
+   * @param {boolean} isMulti - Identifies a "multi" selection to perform more
+   *                 expensive resolution computation.
+   * @param {boolean} vl5 - With Vega-Lite v5, "multi" selections are now called "point"
+   *                 selections, and thus the resolved tuple should reflect this name.
+   *                 This parameter allows us to reflect this change without triggering
+   *                 a major version bump for Vega.
+   * @returns {object} An object of selected fields and values.
+   */
+
+
+  function selectionResolve(name, op, isMulti, vl5) {
+    var data = this.context.data[name],
+        entries = data ? data.values.value : [],
+        resolved = {},
+        multiRes = {},
+        types = {},
+        entry,
+        fields,
+        values,
+        unit,
+        field,
+        res,
+        resUnit,
+        type,
+        union,
+        n = entries.length,
+        i = 0,
+        j,
+        m; // First union all entries within the same unit.
+
+    for (; i < n; ++i) {
+      entry = entries[i];
+      unit = entry.unit;
+      fields = entry.fields;
+      values = entry.values;
+
+      for (j = 0, m = fields.length; j < m; ++j) {
+        field = fields[j];
+        res = resolved[field.field] || (resolved[field.field] = {});
+        resUnit = res[unit] || (res[unit] = []);
+        types[field.field] = type = field.type.charAt(0);
+        union = ops[type + '_union'];
+        res[unit] = union(resUnit, array$5(values[j]));
+      } // If the same multi-selection is repeated over views and projected over
+      // an encoding, it may operate over different fields making it especially
+      // tricky to reliably resolve it. At best, we can de-dupe identical entries
+      // but doing so may be more computationally expensive than it is worth.
+      // Instead, for now, we simply transform our store representation into
+      // a more human-friendly one.
+
+
+      if (isMulti) {
+        resUnit = multiRes[unit] || (multiRes[unit] = []);
+        resUnit.push(array$5(values).reduce((obj, curr, j) => (obj[fields[j].field] = curr, obj), {}));
+      }
+    } // Then resolve fields across units as per the op.
+
+
+    op = op || Union;
+    Object.keys(resolved).forEach(field => {
+      resolved[field] = Object.keys(resolved[field]).map(unit => resolved[field][unit]).reduce((acc, curr) => acc === undefined ? curr : ops[types[field] + '_' + op](acc, curr));
+    });
+    entries = Object.keys(multiRes);
+
+    if (isMulti && entries.length) {
+      const key = vl5 ? VlPoint : VlMulti;
+      resolved[key] = op === Union ? {
+        [Or]: entries.reduce((acc, k) => (acc.push(...multiRes[k]), acc), [])
+      } : {
+        [And]: entries.map(k => ({
+          [Or]: multiRes[k]
+        }))
+      };
+    }
+
+    return resolved;
+  }
+
+  var ops = {
+    E_union: function (base, value) {
+      if (!base.length) return value;
+      var i = 0,
+          n = value.length;
+
+      for (; i < n; ++i) if (base.indexOf(value[i]) < 0) base.push(value[i]);
+
+      return base;
+    },
+    E_intersect: function (base, value) {
+      return !base.length ? value : base.filter(v => value.indexOf(v) >= 0);
+    },
+    R_union: function (base, value) {
+      var lo = toNumber(value[0]),
+          hi = toNumber(value[1]);
+
+      if (lo > hi) {
+        lo = value[1];
+        hi = value[0];
+      }
+
+      if (!base.length) return [lo, hi];
+      if (base[0] > lo) base[0] = lo;
+      if (base[1] < hi) base[1] = hi;
+      return base;
+    },
+    R_intersect: function (base, value) {
+      var lo = toNumber(value[0]),
+          hi = toNumber(value[1]);
+
+      if (lo > hi) {
+        lo = value[1];
+        hi = value[0];
+      }
+
+      if (!base.length) return [lo, hi];
+
+      if (hi < base[0] || base[1] < lo) {
+        return [];
+      } else {
+        if (base[0] < lo) base[0] = lo;
+        if (base[1] > hi) base[1] = hi;
+      }
+
+      return base;
+    }
+  };
+  const DataPrefix$1 = ':',
+        IndexPrefix$1 = '@';
+
+  function selectionVisitor(name, args, scope, params) {
+    if (args[0].type !== Literal) error('First argument to selection functions must be a string literal.');
+    const data = args[0].value,
+          op = args.length >= 2 && peek$1(args).value,
+          field = 'unit',
+          indexName = IndexPrefix$1 + field,
+          dataName = DataPrefix$1 + data; // eslint-disable-next-line no-prototype-builtins
+
+    if (op === Intersect && !has$1(params, indexName)) {
+      params[indexName] = scope.getData(data).indataRef(scope, field);
+    } // eslint-disable-next-line no-prototype-builtins
+
+
+    if (!has$1(params, dataName)) {
+      params[dataName] = scope.getData(data).tuplesRef();
+    }
+  }
+
+  function data$1(name) {
+    const data = this.context.data[name];
+    return data ? data.values.value : [];
+  }
+
+  function indata(name, field, value) {
+    const index = this.context.data[name]['index:' + field],
+          entry = index ? index.value.get(value) : undefined;
+    return entry ? entry.count : entry;
+  }
+
+  function setdata(name, tuples) {
+    const df = this.context.dataflow,
+          data = this.context.data[name],
+          input = data.input;
+    df.pulse(input, df.changeset().remove(truthy).insert(tuples));
+    return 1;
+  }
+
+  function encode(item, name, retval) {
+    if (item) {
+      const df = this.context.dataflow,
+            target = item.mark.source;
+      df.pulse(target, df.changeset().encode(item, name));
+    }
+
+    return retval !== undefined ? retval : item;
+  }
+
+  const wrap = method => function (value, spec) {
+    const locale = this.context.dataflow.locale();
+    return locale[method](spec)(value);
+  };
+
+  const format = wrap('format');
+  const timeFormat = wrap('timeFormat');
+  const utcFormat = wrap('utcFormat');
+  const timeParse = wrap('timeParse');
+  const utcParse = wrap('utcParse');
+  const dateObj = new Date(2000, 0, 1);
+
+  function time(month, day, specifier) {
+    if (!Number.isInteger(month) || !Number.isInteger(day)) return '';
+    dateObj.setYear(2000);
+    dateObj.setMonth(month);
+    dateObj.setDate(day);
+    return timeFormat.call(this, dateObj, specifier);
+  }
+
+  function monthFormat(month) {
+    return time.call(this, month, 1, '%B');
+  }
+
+  function monthAbbrevFormat(month) {
+    return time.call(this, month, 1, '%b');
+  }
+
+  function dayFormat(day) {
+    return time.call(this, 0, 2 + day, '%A');
+  }
+
+  function dayAbbrevFormat(day) {
+    return time.call(this, 0, 2 + day, '%a');
+  }
+
+  const DataPrefix = ':';
+  const IndexPrefix = '@';
+  const ScalePrefix = '%';
+  const SignalPrefix = '$';
+
+  function dataVisitor(name, args, scope, params) {
+    if (args[0].type !== Literal) {
+      error('First argument to data functions must be a string literal.');
+    }
+
+    const data = args[0].value,
+          dataName = DataPrefix + data;
+
+    if (!has$1(dataName, params)) {
+      try {
+        params[dataName] = scope.getData(data).tuplesRef();
+      } catch (err) {// if data set does not exist, there's nothing to track
+      }
+    }
+  }
+
+  function indataVisitor(name, args, scope, params) {
+    if (args[0].type !== Literal) error('First argument to indata must be a string literal.');
+    if (args[1].type !== Literal) error('Second argument to indata must be a string literal.');
+    const data = args[0].value,
+          field = args[1].value,
+          indexName = IndexPrefix + field;
+
+    if (!has$1(indexName, params)) {
+      params[indexName] = scope.getData(data).indataRef(scope, field);
+    }
+  }
+
+  function scaleVisitor(name, args, scope, params) {
+    if (args[0].type === Literal) {
+      // add scale dependency
+      addScaleDependency(scope, params, args[0].value);
+    } else {
+      // indirect scale lookup; add all scales as parameters
+      for (name in scope.scales) {
+        addScaleDependency(scope, params, name);
+      }
+    }
+  }
+
+  function addScaleDependency(scope, params, name) {
+    const scaleName = ScalePrefix + name;
+
+    if (!has$1(params, scaleName)) {
+      try {
+        params[scaleName] = scope.scaleRef(name);
+      } catch (err) {// TODO: error handling? warning?
+      }
+    }
+  }
+
+  function getScale(name, ctx) {
+    let s;
+    return isFunction(name) ? name : isString(name) ? (s = ctx.scales[name]) && s.value : undefined;
+  }
+
+  function internalScaleFunctions(codegen, fnctx, visitors) {
+    // add helper method to the 'this' expression function context
+    fnctx.__bandwidth = s => s && s.bandwidth ? s.bandwidth() : 0; // register AST visitors for internal scale functions
+
+
+    visitors._bandwidth = scaleVisitor;
+    visitors._range = scaleVisitor;
+    visitors._scale = scaleVisitor; // resolve scale reference directly to the signal hash argument
+
+    const ref = arg => '_[' + (arg.type === Literal ? $(ScalePrefix + arg.value) : $(ScalePrefix) + '+' + codegen(arg)) + ']'; // define and return internal scale function code generators
+    // these internal functions are called by mark encoders
+
+
+    return {
+      _bandwidth: args => `this.__bandwidth(${ref(args[0])})`,
+      _range: args => `${ref(args[0])}.range()`,
+      _scale: args => `${ref(args[0])}(${codegen(args[1])})`
+    };
+  }
+
+  function geoMethod(methodName, globalMethod) {
+    return function (projection, geojson, group) {
+      if (projection) {
+        // projection defined, use it
+        const p = getScale(projection, (group || this).context);
+        return p && p.path[methodName](geojson);
+      } else {
+        // projection undefined, use global method
+        return globalMethod(geojson);
+      }
+    };
+  }
+
+  const geoArea = geoMethod('area', geoArea$1);
+  const geoBounds = geoMethod('bounds', geoBounds$1);
+  const geoCentroid = geoMethod('centroid', geoCentroid$1);
+
+  function inScope(item) {
+    const group = this.context.group;
+    let value = false;
+    if (group) while (item) {
+      if (item === group) {
+        value = true;
+        break;
+      }
+
+      item = item.mark.group;
+    }
+    return value;
+  }
+
+  function log(df, method, args) {
+    try {
+      df[method].apply(df, ['EXPRESSION'].concat([].slice.call(args)));
+    } catch (err) {
+      df.warn(err);
+    }
+
+    return args[args.length - 1];
+  }
+
+  function warn() {
+    return log(this.context.dataflow, 'warn', arguments);
+  }
+
+  function info() {
+    return log(this.context.dataflow, 'info', arguments);
+  }
+
+  function debug() {
+    return log(this.context.dataflow, 'debug', arguments);
+  }
+
+  function channel_luminance_value(channelValue) {
+    const val = channelValue / 255;
+
+    if (val <= 0.03928) {
+      return val / 12.92;
+    }
+
+    return Math.pow((val + 0.055) / 1.055, 2.4);
+  }
+
+  function luminance(color) {
+    const c = rgb$1(color),
+          r = channel_luminance_value(c.r),
+          g = channel_luminance_value(c.g),
+          b = channel_luminance_value(c.b);
+    return 0.2126 * r + 0.7152 * g + 0.0722 * b;
+  } // https://www.w3.org/TR/2008/REC-WCAG20-20081211/#contrast-ratiodef
+
+
+  function contrast(color1, color2) {
+    const lum1 = luminance(color1),
+          lum2 = luminance(color2),
+          lumL = Math.max(lum1, lum2),
+          lumD = Math.min(lum1, lum2);
+    return (lumL + 0.05) / (lumD + 0.05);
+  }
+
+  function merge() {
+    const args = [].slice.call(arguments);
+    args.unshift({});
+    return extend$1(...args);
+  }
+
+  function equal(a, b) {
+    return a === b || a !== a && b !== b ? true : isArray(a) ? isArray(b) && a.length === b.length ? equalArray(a, b) : false : isObject(a) && isObject(b) ? equalObject(a, b) : false;
+  }
+
+  function equalArray(a, b) {
+    for (let i = 0, n = a.length; i < n; ++i) {
+      if (!equal(a[i], b[i])) return false;
+    }
+
+    return true;
+  }
+
+  function equalObject(a, b) {
+    for (const key in a) {
+      if (!equal(a[key], b[key])) return false;
+    }
+
+    return true;
+  }
+
+  function removePredicate(props) {
+    return _ => equalObject(props, _);
+  }
+
+  function modify(name, insert, remove, toggle, modify, values) {
+    const df = this.context.dataflow,
+          data = this.context.data[name],
+          input = data.input,
+          stamp = df.stamp();
+    let changes = data.changes,
+        predicate,
+        key;
+
+    if (df._trigger === false || !(input.value.length || insert || toggle)) {
+      // nothing to do!
+      return 0;
+    }
+
+    if (!changes || changes.stamp < stamp) {
+      data.changes = changes = df.changeset();
+      changes.stamp = stamp;
+      df.runAfter(() => {
+        data.modified = true;
+        df.pulse(input, changes).run();
+      }, true, 1);
+    }
+
+    if (remove) {
+      predicate = remove === true ? truthy : isArray(remove) || isTuple(remove) ? remove : removePredicate(remove);
+      changes.remove(predicate);
+    }
+
+    if (insert) {
+      changes.insert(insert);
+    }
+
+    if (toggle) {
+      predicate = removePredicate(toggle);
+
+      if (input.value.some(predicate)) {
+        changes.remove(predicate);
+      } else {
+        changes.insert(toggle);
+      }
+    }
+
+    if (modify) {
+      for (key in values) {
+        changes.modify(modify, key, values[key]);
+      }
+    }
+
+    return 1;
+  }
+
+  function pinchDistance(event) {
+    const t = event.touches,
+          dx = t[0].clientX - t[1].clientX,
+          dy = t[0].clientY - t[1].clientY;
+    return Math.sqrt(dx * dx + dy * dy);
+  }
+
+  function pinchAngle(event) {
+    const t = event.touches;
+    return Math.atan2(t[0].clientY - t[1].clientY, t[0].clientX - t[1].clientX);
+  }
+
+  const accessors = {};
+
+  function pluck(data, name) {
+    const accessor = accessors[name] || (accessors[name] = field$1(name));
+    return isArray(data) ? data.map(accessor) : accessor(data);
+  }
+
+  function array(seq) {
+    return isArray(seq) || ArrayBuffer.isView(seq) ? seq : null;
+  }
+
+  function sequence(seq) {
+    return array(seq) || (isString(seq) ? seq : null);
+  }
+
+  function join(seq, ...args) {
+    return array(seq).join(...args);
+  }
+
+  function indexof(seq, ...args) {
+    return sequence(seq).indexOf(...args);
+  }
+
+  function lastindexof(seq, ...args) {
+    return sequence(seq).lastIndexOf(...args);
+  }
+
+  function slice(seq, ...args) {
+    return sequence(seq).slice(...args);
+  }
+
+  function replace(str, pattern, repl) {
+    if (isFunction(repl)) error('Function argument passed to replace.');
+    return String(str).replace(pattern, repl);
+  }
+
+  function reverse(seq) {
+    return array(seq).slice().reverse();
+  }
+
+  function bandspace(count, paddingInner, paddingOuter) {
+    return bandSpace(count || 0, paddingInner || 0, paddingOuter || 0);
+  }
+
+  function bandwidth(name, group) {
+    const s = getScale(name, (group || this).context);
+    return s && s.bandwidth ? s.bandwidth() : 0;
+  }
+
+  function copy(name, group) {
+    const s = getScale(name, (group || this).context);
+    return s ? s.copy() : undefined;
+  }
+
+  function domain(name, group) {
+    const s = getScale(name, (group || this).context);
+    return s ? s.domain() : [];
+  }
+
+  function invert(name, range, group) {
+    const s = getScale(name, (group || this).context);
+    return !s ? undefined : isArray(range) ? (s.invertRange || s.invert)(range) : (s.invert || s.invertExtent)(range);
+  }
+
+  function range$1(name, group) {
+    const s = getScale(name, (group || this).context);
+    return s && s.range ? s.range() : [];
+  }
+
+  function scale$2(name, value, group) {
+    const s = getScale(name, (group || this).context);
+    return s ? s(value) : undefined;
+  }
+
+  function scaleGradient(scale, p0, p1, count, group) {
+    scale = getScale(scale, (group || this).context);
+    const gradient = Gradient$1(p0, p1);
+    let stops = scale.domain(),
+        min = stops[0],
+        max = peek$1(stops),
+        fraction = identity$6;
+
+    if (!(max - min)) {
+      // expand scale if domain has zero span, fix #1479
+      scale = (scale.interpolator ? scale$4('sequential')().interpolator(scale.interpolator()) : scale$4('linear')().interpolate(scale.interpolate()).range(scale.range())).domain([min = 0, max = 1]);
+    } else {
+      fraction = scaleFraction(scale, min, max);
+    }
+
+    if (scale.ticks) {
+      stops = scale.ticks(+count || 15);
+      if (min !== stops[0]) stops.unshift(min);
+      if (max !== peek$1(stops)) stops.push(max);
+    }
+
+    stops.forEach(_ => gradient.stop(fraction(_), scale(_)));
+    return gradient;
+  }
+
+  function geoShape(projection, geojson, group) {
+    const p = getScale(projection, (group || this).context);
+    return function (context) {
+      return p ? p.path.context(context)(geojson) : '';
+    };
+  }
+
+  function pathShape(path) {
+    let p = null;
+    return function (context) {
+      return context ? pathRender(context, p = p || pathParse(path)) : path;
+    };
+  }
+
+  const datum = d => d.data;
+
+  function treeNodes(name, context) {
+    const tree = data$1.call(context, name);
+    return tree.root && tree.root.lookup || {};
+  }
+
+  function treePath(name, source, target) {
+    const nodes = treeNodes(name, this),
+          s = nodes[source],
+          t = nodes[target];
+    return s && t ? s.path(t).map(datum) : undefined;
+  }
+
+  function treeAncestors(name, node) {
+    const n = treeNodes(name, this)[node];
+    return n ? n.ancestors().map(datum) : undefined;
+  }
+
+  const _window = () => typeof window !== 'undefined' && window || null;
+
+  function screen() {
+    const w = _window();
+
+    return w ? w.screen : {};
+  }
+
+  function windowSize() {
+    const w = _window();
+
+    return w ? [w.innerWidth, w.innerHeight] : [undefined, undefined];
+  }
+
+  function containerSize() {
+    const view = this.context.dataflow,
+          el = view.container && view.container();
+    return el ? [el.clientWidth, el.clientHeight] : [undefined, undefined];
+  }
+
+  function intersect(b, opt, group) {
+    if (!b) return [];
+    const [u, v] = b,
+          box = new Bounds().set(u[0], u[1], v[0], v[1]),
+          scene = group || this.context.dataflow.scenegraph().root;
+    return intersect$2(scene, box, filter(opt));
+  }
+
+  function filter(opt) {
+    let p = null;
+
+    if (opt) {
+      const types = array$5(opt.marktype),
+            names = array$5(opt.markname);
+
+      p = _ => (!types.length || types.some(t => _.marktype === t)) && (!names.length || names.some(s => _.name === s));
+    }
+
+    return p;
+  }
+
+  const functionContext = {
+    random() {
+      return exports.random();
+    },
+
+    // override default
+    cumulativeNormal,
+    cumulativeLogNormal,
+    cumulativeUniform,
+    densityNormal,
+    densityLogNormal,
+    densityUniform,
+    quantileNormal,
+    quantileLogNormal,
+    quantileUniform,
+    sampleNormal,
+    sampleLogNormal,
+    sampleUniform,
+    isArray,
+    isBoolean: isBoolean$1,
+    isDate: isDate$1,
+
+    isDefined(_) {
+      return _ !== undefined;
+    },
+
+    isNumber: isNumber$1,
+    isObject,
+    isRegExp,
+    isString,
+    isTuple,
+
+    isValid(_) {
+      return _ != null && _ === _;
+    },
+
+    toBoolean,
+    toDate,
+    toNumber,
+    toString,
+    indexof,
+    join,
+    lastindexof,
+    replace,
+    reverse,
+    slice,
+    flush,
+    lerp,
+    merge,
+    pad: pad$2,
+    peek: peek$1,
+    pluck,
+    span,
+    inrange,
+    truncate: truncate$1,
+    rgb: rgb$1,
+    lab: lab$1,
+    hcl: hcl$2,
+    hsl: hsl$2,
+    luminance,
+    contrast,
+    sequence: range$1$1,
+    format,
+    utcFormat,
+    utcParse,
+    utcOffset,
+    utcSequence,
+    timeFormat,
+    timeParse,
+    timeOffset,
+    timeSequence,
+    timeUnitSpecifier,
+    monthFormat,
+    monthAbbrevFormat,
+    dayFormat,
+    dayAbbrevFormat,
+    quarter,
+    utcquarter,
+    week,
+    utcweek,
+    dayofyear,
+    utcdayofyear,
+    warn,
+    info,
+    debug,
+    extent,
+    inScope,
+    intersect,
+    clampRange,
+    pinchDistance,
+    pinchAngle,
+    screen,
+    containerSize,
+    windowSize,
+    bandspace,
+    setdata,
+    pathShape,
+    panLinear,
+    panLog,
+    panPow,
+    panSymlog,
+    zoomLinear,
+    zoomLog,
+    zoomPow,
+    zoomSymlog,
+    encode,
+    modify
+  };
+  const eventFunctions = ['view', 'item', 'group', 'xy', 'x', 'y'],
+        // event functions
+  eventPrefix = 'event.vega.',
+        // event function prefix
+  thisPrefix = 'this.',
+        // function context prefix
+  astVisitors = {}; // AST visitors for dependency analysis
+  // export code generator parameters
+
+  const codegenParams = {
+    forbidden: ['_'],
+    allowed: ['datum', 'event', 'item'],
+    fieldvar: 'datum',
+    globalvar: id => `_[${$(SignalPrefix + id)}]`,
+    functions: buildFunctions,
+    constants: Constants,
+    visitors: astVisitors
+  }; // export code generator
+
+  const codeGenerator = codegen(codegenParams); // Build expression function registry
+
+  function buildFunctions(codegen) {
+    const fn = Functions(codegen);
+    eventFunctions.forEach(name => fn[name] = eventPrefix + name);
+
+    for (const name in functionContext) {
+      fn[name] = thisPrefix + name;
+    }
+
+    extend$1(fn, internalScaleFunctions(codegen, functionContext, astVisitors));
+    return fn;
+  } // Register an expression function
+
+
+  function expressionFunction(name, fn, visitor) {
+    if (arguments.length === 1) {
+      return functionContext[name];
+    } // register with the functionContext
+
+
+    functionContext[name] = fn; // if there is an astVisitor register that, too
+
+    if (visitor) astVisitors[name] = visitor; // if the code generator has already been initialized,
+    // we need to also register the function with it
+
+    if (codeGenerator) codeGenerator.functions[name] = thisPrefix + name;
+    return this;
+  } // register expression functions with ast visitors
+
+
+  expressionFunction('bandwidth', bandwidth, scaleVisitor);
+  expressionFunction('copy', copy, scaleVisitor);
+  expressionFunction('domain', domain, scaleVisitor);
+  expressionFunction('range', range$1, scaleVisitor);
+  expressionFunction('invert', invert, scaleVisitor);
+  expressionFunction('scale', scale$2, scaleVisitor);
+  expressionFunction('gradient', scaleGradient, scaleVisitor);
+  expressionFunction('geoArea', geoArea, scaleVisitor);
+  expressionFunction('geoBounds', geoBounds, scaleVisitor);
+  expressionFunction('geoCentroid', geoCentroid, scaleVisitor);
+  expressionFunction('geoShape', geoShape, scaleVisitor);
+  expressionFunction('indata', indata, indataVisitor);
+  expressionFunction('data', data$1, dataVisitor);
+  expressionFunction('treePath', treePath, dataVisitor);
+  expressionFunction('treeAncestors', treeAncestors, dataVisitor); // register Vega-Lite selection functions
+
+  expressionFunction('vlSelectionTest', selectionTest, selectionVisitor);
+  expressionFunction('vlSelectionIdTest', selectionIdTest, selectionVisitor);
+  expressionFunction('vlSelectionResolve', selectionResolve, selectionVisitor);
+  expressionFunction('vlSelectionTuples', selectionTuples);
+
+  function parser(expr, scope) {
+    const params = {}; // parse the expression to an abstract syntax tree (ast)
+
+    let ast;
+
+    try {
+      expr = isString(expr) ? expr : $(expr) + '';
+      ast = parser$1(expr);
+    } catch (err) {
+      error('Expression parse error: ' + expr);
+    } // analyze ast function calls for dependencies
+
+
+    ast.visit(node => {
+      if (node.type !== CallExpression) return;
+      const name = node.callee.name,
+            visit = codegenParams.visitors[name];
+      if (visit) visit(name, node.arguments, scope, params);
+    }); // perform code generation
+
+    const gen = codeGenerator(ast); // collect signal dependencies
+
+    gen.globals.forEach(name => {
+      const signalName = SignalPrefix + name;
+
+      if (!has$1(params, signalName) && scope.getSignal(name)) {
+        params[signalName] = scope.signalRef(name);
+      }
+    }); // return generated expression code and dependencies
+
+    return {
+      $expr: extend$1({
+        code: gen.code
+      }, scope.options.ast ? {
+        ast
+      } : null),
+      $fields: gen.fields,
+      $params: params
+    };
+  }
+
+  /**
+   * Parse a serialized dataflow specification.
+   */
+
+  function parse$2(spec) {
+    const ctx = this,
+          operators = spec.operators || []; // parse background
+
+    if (spec.background) {
+      ctx.background = spec.background;
+    } // parse event configuration
+
+
+    if (spec.eventConfig) {
+      ctx.eventConfig = spec.eventConfig;
+    } // parse locale configuration
+
+
+    if (spec.locale) {
+      ctx.locale = spec.locale;
+    } // parse operators
+
+
+    operators.forEach(entry => ctx.parseOperator(entry)); // parse operator parameters
+
+    operators.forEach(entry => ctx.parseOperatorParameters(entry)); // parse streams
+
+    (spec.streams || []).forEach(entry => ctx.parseStream(entry)); // parse updates
+
+    (spec.updates || []).forEach(entry => ctx.parseUpdate(entry));
+    return ctx.resolve();
+  }
+
+  const Skip$2 = toSet(['rule']),
+        Swap = toSet(['group', 'image', 'rect']);
+
+  function adjustSpatial(encode, marktype) {
+    let code = '';
+    if (Skip$2[marktype]) return code;
+
+    if (encode.x2) {
+      if (encode.x) {
+        if (Swap[marktype]) {
+          code += 'if(o.x>o.x2)$=o.x,o.x=o.x2,o.x2=$;';
+        }
+
+        code += 'o.width=o.x2-o.x;';
+      } else {
+        code += 'o.x=o.x2-(o.width||0);';
+      }
+    }
+
+    if (encode.xc) {
+      code += 'o.x=o.xc-(o.width||0)/2;';
+    }
+
+    if (encode.y2) {
+      if (encode.y) {
+        if (Swap[marktype]) {
+          code += 'if(o.y>o.y2)$=o.y,o.y=o.y2,o.y2=$;';
+        }
+
+        code += 'o.height=o.y2-o.y;';
+      } else {
+        code += 'o.y=o.y2-(o.height||0);';
+      }
+    }
+
+    if (encode.yc) {
+      code += 'o.y=o.yc-(o.height||0)/2;';
+    }
+
+    return code;
+  }
+
+  function canonicalType(type) {
+    return (type + '').toLowerCase();
+  }
+
+  function isOperator(type) {
+    return canonicalType(type) === 'operator';
+  }
+
+  function isCollect(type) {
+    return canonicalType(type) === 'collect';
+  }
+
+  function expression(ctx, args, code) {
+    // wrap code in return statement if expression does not terminate
+    if (!code.endsWith(';')) {
+      code = 'return(' + code + ');';
+    }
+
+    const fn = Function(...args.concat(code));
+    return ctx && ctx.functions ? fn.bind(ctx.functions) : fn;
+  } // generate code for comparing a single field
+
+
+  function _compare(u, v, lt, gt) {
+    return `((u = ${u}) < (v = ${v}) || u == null) && v != null ? ${lt}
+  : (u > v || v == null) && u != null ? ${gt}
+  : ((v = v instanceof Date ? +v : v), (u = u instanceof Date ? +u : u)) !== u && v === v ? ${lt}
+  : v !== v && u === u ? ${gt} : `;
+  }
+
+  var expressionCodegen = {
+    /**
+     * Parse an expression used to update an operator value.
+     */
+    operator: (ctx, expr) => expression(ctx, ['_'], expr.code),
+
+    /**
+     * Parse an expression provided as an operator parameter value.
+     */
+    parameter: (ctx, expr) => expression(ctx, ['datum', '_'], expr.code),
+
+    /**
+     * Parse an expression applied to an event stream.
+     */
+    event: (ctx, expr) => expression(ctx, ['event'], expr.code),
+
+    /**
+     * Parse an expression used to handle an event-driven operator update.
+     */
+    handler: (ctx, expr) => {
+      const code = `var datum=event.item&&event.item.datum;return ${expr.code};`;
+      return expression(ctx, ['_', 'event'], code);
+    },
+
+    /**
+     * Parse an expression that performs visual encoding.
+     */
+    encode: (ctx, encode) => {
+      const {
+        marktype,
+        channels
+      } = encode;
+      let code = 'var o=item,datum=o.datum,m=0,$;';
+
+      for (const name in channels) {
+        const o = 'o[' + $(name) + ']';
+        code += `$=${channels[name].code};if(${o}!==$)${o}=$,m=1;`;
+      }
+
+      code += adjustSpatial(channels, marktype);
+      code += 'return m;';
+      return expression(ctx, ['item', '_'], code);
+    },
+
+    /**
+     * Optimized code generators for access and comparison.
+     */
+    codegen: {
+      get(path) {
+        const ref = `[${path.map($).join('][')}]`;
+        const get = Function('_', `return _${ref};`);
+        get.path = ref;
+        return get;
+      },
+
+      comparator(fields, orders) {
+        let t;
+
+        const map = (f, i) => {
+          const o = orders[i];
+          let u, v;
+
+          if (f.path) {
+            u = `a${f.path}`;
+            v = `b${f.path}`;
+          } else {
+            (t = t || {})['f' + i] = f;
+            u = `this.f${i}(a)`;
+            v = `this.f${i}(b)`;
+          }
+
+          return _compare(u, v, -o, o);
+        };
+
+        const fn = Function('a', 'b', 'var u, v; return ' + fields.map(map).join('') + '0;');
+        return t ? fn.bind(t) : fn;
+      }
+
+    }
+  };
+  /**
+   * Parse a dataflow operator.
+   */
+
+  function parseOperator(spec) {
+    const ctx = this;
+
+    if (isOperator(spec.type) || !spec.type) {
+      ctx.operator(spec, spec.update ? ctx.operatorExpression(spec.update) : null);
+    } else {
+      ctx.transform(spec, spec.type);
+    }
+  }
+  /**
+   * Parse and assign operator parameters.
+   */
+
+
+  function parseOperatorParameters(spec) {
+    const ctx = this;
+
+    if (spec.params) {
+      const op = ctx.get(spec.id);
+      if (!op) error('Invalid operator id: ' + spec.id);
+      ctx.dataflow.connect(op, op.parameters(ctx.parseParameters(spec.params), spec.react, spec.initonly));
+    }
+  }
+  /**
+   * Parse a set of operator parameters.
+   */
+
+
+  function parseParameters$1(spec, params) {
+    params = params || {};
+    const ctx = this;
+
+    for (const key in spec) {
+      const value = spec[key];
+      params[key] = isArray(value) ? value.map(v => parseParameter$2(v, ctx, params)) : parseParameter$2(value, ctx, params);
+    }
+
+    return params;
+  }
+  /**
+   * Parse a single parameter.
+   */
+
+
+  function parseParameter$2(spec, ctx, params) {
+    if (!spec || !isObject(spec)) return spec;
+
+    for (let i = 0, n = PARSERS.length, p; i < n; ++i) {
+      p = PARSERS[i];
+
+      if (has$1(spec, p.key)) {
+        return p.parse(spec, ctx, params);
+      }
+    }
+
+    return spec;
+  }
+  /** Reference parsers. */
+
+
+  var PARSERS = [{
+    key: '$ref',
+    parse: getOperator
+  }, {
+    key: '$key',
+    parse: getKey
+  }, {
+    key: '$expr',
+    parse: getExpression
+  }, {
+    key: '$field',
+    parse: getField
+  }, {
+    key: '$encode',
+    parse: getEncode
+  }, {
+    key: '$compare',
+    parse: getCompare
+  }, {
+    key: '$context',
+    parse: getContext
+  }, {
+    key: '$subflow',
+    parse: getSubflow
+  }, {
+    key: '$tupleid',
+    parse: getTupleId
+  }];
+  /**
+   * Resolve an operator reference.
+   */
+
+  function getOperator(_, ctx) {
+    return ctx.get(_.$ref) || error('Operator not defined: ' + _.$ref);
+  }
+  /**
+   * Resolve an expression reference.
+   */
+
+
+  function getExpression(_, ctx, params) {
+    if (_.$params) {
+      // parse expression parameters
+      ctx.parseParameters(_.$params, params);
+    }
+
+    const k = 'e:' + _.$expr.code;
+    return ctx.fn[k] || (ctx.fn[k] = accessor(ctx.parameterExpression(_.$expr), _.$fields));
+  }
+  /**
+   * Resolve a key accessor reference.
+   */
+
+
+  function getKey(_, ctx) {
+    const k = 'k:' + _.$key + '_' + !!_.$flat;
+    return ctx.fn[k] || (ctx.fn[k] = key(_.$key, _.$flat, ctx.expr.codegen));
+  }
+  /**
+   * Resolve a field accessor reference.
+   */
+
+
+  function getField(_, ctx) {
+    if (!_.$field) return null;
+    const k = 'f:' + _.$field + '_' + _.$name;
+    return ctx.fn[k] || (ctx.fn[k] = field$1(_.$field, _.$name, ctx.expr.codegen));
+  }
+  /**
+   * Resolve a comparator function reference.
+   */
+
+
+  function getCompare(_, ctx) {
+    // As of Vega 5.5.3, $tupleid sort is no longer used.
+    // Keep here for now for backwards compatibility.
+    const k = 'c:' + _.$compare + '_' + _.$order,
+          c = array$5(_.$compare).map(_ => _ && _.$tupleid ? tupleid : _);
+    return ctx.fn[k] || (ctx.fn[k] = compare$1(c, _.$order, ctx.expr.codegen));
+  }
+  /**
+   * Resolve an encode operator reference.
+   */
+
+
+  function getEncode(_, ctx) {
+    const spec = _.$encode,
+          encode = {};
+
+    for (const name in spec) {
+      const enc = spec[name];
+      encode[name] = accessor(ctx.encodeExpression(enc.$expr), enc.$fields);
+      encode[name].output = enc.$output;
+    }
+
+    return encode;
+  }
+  /**
+   * Resolve a context reference.
+   */
+
+
+  function getContext(_, ctx) {
+    return ctx;
+  }
+  /**
+   * Resolve a recursive subflow specification.
+   */
+
+
+  function getSubflow(_, ctx) {
+    const spec = _.$subflow;
+    return function (dataflow, key, parent) {
+      const subctx = ctx.fork().parse(spec),
+            op = subctx.get(spec.operators[0].id),
+            p = subctx.signals.parent;
+      if (p) p.set(parent);
+
+      op.detachSubflow = () => ctx.detach(subctx);
+
+      return op;
+    };
+  }
+  /**
+   * Resolve a tuple id reference.
+   */
+
+
+  function getTupleId() {
+    return tupleid;
+  }
+  /**
+   * Parse an event stream specification.
+   */
+
+
+  function parseStream$2(spec) {
+    var ctx = this,
+        filter = spec.filter != null ? ctx.eventExpression(spec.filter) : undefined,
+        stream = spec.stream != null ? ctx.get(spec.stream) : undefined,
+        args;
+
+    if (spec.source) {
+      stream = ctx.events(spec.source, spec.type, filter);
+    } else if (spec.merge) {
+      args = spec.merge.map(_ => ctx.get(_));
+      stream = args[0].merge.apply(args[0], args.slice(1));
+    }
+
+    if (spec.between) {
+      args = spec.between.map(_ => ctx.get(_));
+      stream = stream.between(args[0], args[1]);
+    }
+
+    if (spec.filter) {
+      stream = stream.filter(filter);
+    }
+
+    if (spec.throttle != null) {
+      stream = stream.throttle(+spec.throttle);
+    }
+
+    if (spec.debounce != null) {
+      stream = stream.debounce(+spec.debounce);
+    }
+
+    if (stream == null) {
+      error('Invalid stream definition: ' + JSON.stringify(spec));
+    }
+
+    if (spec.consume) stream.consume(true);
+    ctx.stream(spec, stream);
+  }
+  /**
+   * Parse an event-driven operator update.
+   */
+
+
+  function parseUpdate$1(spec) {
+    var ctx = this,
+        srcid = isObject(srcid = spec.source) ? srcid.$ref : srcid,
+        source = ctx.get(srcid),
+        target = null,
+        update = spec.update,
+        params = undefined;
+    if (!source) error('Source not defined: ' + spec.source);
+    target = spec.target && spec.target.$expr ? ctx.eventExpression(spec.target.$expr) : ctx.get(spec.target);
+
+    if (update && update.$expr) {
+      if (update.$params) {
+        params = ctx.parseParameters(update.$params);
+      }
+
+      update = ctx.handlerExpression(update.$expr);
+    }
+
+    ctx.update(spec, source, target, update, params);
+  }
+
+  const SKIP = {
+    skip: true
+  };
+
+  function getState$1(options) {
+    var ctx = this,
+        state = {};
+
+    if (options.signals) {
+      var signals = state.signals = {};
+      Object.keys(ctx.signals).forEach(key => {
+        const op = ctx.signals[key];
+
+        if (options.signals(key, op)) {
+          signals[key] = op.value;
+        }
+      });
+    }
+
+    if (options.data) {
+      var data = state.data = {};
+      Object.keys(ctx.data).forEach(key => {
+        const dataset = ctx.data[key];
+
+        if (options.data(key, dataset)) {
+          data[key] = dataset.input.value;
+        }
+      });
+    }
+
+    if (ctx.subcontext && options.recurse !== false) {
+      state.subcontext = ctx.subcontext.map(ctx => ctx.getState(options));
+    }
+
+    return state;
+  }
+
+  function setState$1(state) {
+    var ctx = this,
+        df = ctx.dataflow,
+        data = state.data,
+        signals = state.signals;
+    Object.keys(signals || {}).forEach(key => {
+      df.update(ctx.signals[key], signals[key], SKIP);
+    });
+    Object.keys(data || {}).forEach(key => {
+      df.pulse(ctx.data[key].input, df.changeset().remove(truthy).insert(data[key]));
+    });
+    (state.subcontext || []).forEach((substate, i) => {
+      const subctx = ctx.subcontext[i];
+      if (subctx) subctx.setState(substate);
+    });
+  }
+  /**
+   * Context objects store the current parse state.
+   * Enables lookup of parsed operators, event streams, accessors, etc.
+   * Provides a 'fork' method for creating child contexts for subflows.
+   */
+
+
+  function context(df, transforms, functions, expr) {
+    return new Context(df, transforms, functions, expr);
+  }
+
+  function Context(df, transforms, functions, expr) {
+    this.dataflow = df;
+    this.transforms = transforms;
+    this.events = df.events.bind(df);
+    this.expr = expr || expressionCodegen, this.signals = {};
+    this.scales = {};
+    this.nodes = {};
+    this.data = {};
+    this.fn = {};
+
+    if (functions) {
+      this.functions = Object.create(functions);
+      this.functions.context = this;
+    }
+  }
+
+  function Subcontext(ctx) {
+    this.dataflow = ctx.dataflow;
+    this.transforms = ctx.transforms;
+    this.events = ctx.events;
+    this.expr = ctx.expr;
+    this.signals = Object.create(ctx.signals);
+    this.scales = Object.create(ctx.scales);
+    this.nodes = Object.create(ctx.nodes);
+    this.data = Object.create(ctx.data);
+    this.fn = Object.create(ctx.fn);
+
+    if (ctx.functions) {
+      this.functions = Object.create(ctx.functions);
+      this.functions.context = this;
+    }
+  }
+
+  Context.prototype = Subcontext.prototype = {
+    fork() {
+      const ctx = new Subcontext(this);
+      (this.subcontext || (this.subcontext = [])).push(ctx);
+      return ctx;
+    },
+
+    detach(ctx) {
+      this.subcontext = this.subcontext.filter(c => c !== ctx); // disconnect all nodes in the subcontext
+      // wipe out targets first for better efficiency
+
+      const keys = Object.keys(ctx.nodes);
+
+      for (const key of keys) ctx.nodes[key]._targets = null;
+
+      for (const key of keys) ctx.nodes[key].detach();
+
+      ctx.nodes = null;
+    },
+
+    get(id) {
+      return this.nodes[id];
+    },
+
+    set(id, node) {
+      return this.nodes[id] = node;
+    },
+
+    add(spec, op) {
+      const ctx = this,
+            df = ctx.dataflow,
+            data = spec.value;
+      ctx.set(spec.id, op);
+
+      if (isCollect(spec.type) && data) {
+        if (data.$ingest) {
+          df.ingest(op, data.$ingest, data.$format);
+        } else if (data.$request) {
+          df.preload(op, data.$request, data.$format);
+        } else {
+          df.pulse(op, df.changeset().insert(data));
+        }
+      }
+
+      if (spec.root) {
+        ctx.root = op;
+      }
+
+      if (spec.parent) {
+        let p = ctx.get(spec.parent.$ref);
+
+        if (p) {
+          df.connect(p, [op]);
+          op.targets().add(p);
+        } else {
+          (ctx.unresolved = ctx.unresolved || []).push(() => {
+            p = ctx.get(spec.parent.$ref);
+            df.connect(p, [op]);
+            op.targets().add(p);
+          });
+        }
+      }
+
+      if (spec.signal) {
+        ctx.signals[spec.signal] = op;
+      }
+
+      if (spec.scale) {
+        ctx.scales[spec.scale] = op;
+      }
+
+      if (spec.data) {
+        for (const name in spec.data) {
+          const data = ctx.data[name] || (ctx.data[name] = {});
+          spec.data[name].forEach(role => data[role] = op);
+        }
+      }
+    },
+
+    resolve() {
+      (this.unresolved || []).forEach(fn => fn());
+      delete this.unresolved;
+      return this;
+    },
+
+    operator(spec, update) {
+      this.add(spec, this.dataflow.add(spec.value, update));
+    },
+
+    transform(spec, type) {
+      this.add(spec, this.dataflow.add(this.transforms[canonicalType(type)]));
+    },
+
+    stream(spec, stream) {
+      this.set(spec.id, stream);
+    },
+
+    update(spec, stream, target, update, params) {
+      this.dataflow.on(stream, target, update, params, spec.options);
+    },
+
+    // expression parsing
+    operatorExpression(expr) {
+      return this.expr.operator(this, expr);
+    },
+
+    parameterExpression(expr) {
+      return this.expr.parameter(this, expr);
+    },
+
+    eventExpression(expr) {
+      return this.expr.event(this, expr);
+    },
+
+    handlerExpression(expr) {
+      return this.expr.handler(this, expr);
+    },
+
+    encodeExpression(encode) {
+      return this.expr.encode(this, encode);
+    },
+
+    // parse methods
+    parse: parse$2,
+    parseOperator,
+    parseOperatorParameters,
+    parseParameters: parseParameters$1,
+    parseStream: parseStream$2,
+    parseUpdate: parseUpdate$1,
+    // state methods
+    getState: getState$1,
+    setState: setState$1
+  };
+
+  function initializeAria(view) {
+    const el = view.container();
+
+    if (el) {
+      el.setAttribute('role', 'graphics-document');
+      el.setAttribute('aria-roleDescription', 'visualization');
+      ariaLabel(el, view.description());
+    }
+  } // update aria-label if we have a DOM container element
+
+
+  function ariaLabel(el, desc) {
+    if (el) desc == null ? el.removeAttribute('aria-label') : el.setAttribute('aria-label', desc);
+  }
+
+  function background(view) {
+    // respond to background signal
+    view.add(null, _ => {
+      view._background = _.bg;
+      view._resize = 1;
+      return _.bg;
+    }, {
+      bg: view._signals.background
+    });
+  }
+
+  const Default = 'default';
+
+  function cursor(view) {
+    // get cursor signal, add to dataflow if needed
+    const cursor = view._signals.cursor || (view._signals.cursor = view.add({
+      user: Default,
+      item: null
+    })); // evaluate cursor on each mousemove event
+
+    view.on(view.events('view', 'mousemove'), cursor, (_, event) => {
+      const value = cursor.value,
+            user = value ? isString(value) ? value : value.user : Default,
+            item = event.item && event.item.cursor || null;
+      return value && user === value.user && item == value.item ? value : {
+        user: user,
+        item: item
+      };
+    }); // when cursor signal updates, set visible cursor
+
+    view.add(null, function (_) {
+      let user = _.cursor,
+          item = this.value;
+
+      if (!isString(user)) {
+        item = user.item;
+        user = user.user;
+      }
+
+      setCursor(view, user && user !== Default ? user : item || user);
+      return item;
+    }, {
+      cursor: cursor
+    });
+  }
+
+  function setCursor(view, cursor) {
+    const el = view.globalCursor() ? typeof document !== 'undefined' && document.body : view.container();
+
+    if (el) {
+      return cursor == null ? el.style.removeProperty('cursor') : el.style.cursor = cursor;
+    }
+  }
+
+  function dataref(view, name) {
+    var data = view._runtime.data;
+
+    if (!has$1(data, name)) {
+      error('Unrecognized data set: ' + name);
+    }
+
+    return data[name];
+  }
+
+  function data(name, values) {
+    return arguments.length < 2 ? dataref(this, name).values.value : change.call(this, name, changeset().remove(truthy).insert(values));
+  }
+
+  function change(name, changes) {
+    if (!isChangeSet(changes)) {
+      error('Second argument to changes must be a changeset.');
+    }
+
+    const dataset = dataref(this, name);
+    dataset.modified = true;
+    return this.pulse(dataset.input, changes);
+  }
+
+  function insert(name, _) {
+    return change.call(this, name, changeset().insert(_));
+  }
+
+  function remove(name, _) {
+    return change.call(this, name, changeset().remove(_));
+  }
+
+  function width(view) {
+    var padding = view.padding();
+    return Math.max(0, view._viewWidth + padding.left + padding.right);
+  }
+
+  function height(view) {
+    var padding = view.padding();
+    return Math.max(0, view._viewHeight + padding.top + padding.bottom);
+  }
+
+  function offset(view) {
+    var padding = view.padding(),
+        origin = view._origin;
+    return [padding.left + origin[0], padding.top + origin[1]];
+  }
+
+  function resizeRenderer(view) {
+    var origin = offset(view),
+        w = width(view),
+        h = height(view);
+
+    view._renderer.background(view.background());
+
+    view._renderer.resize(w, h, origin);
+
+    view._handler.origin(origin);
+
+    view._resizeListeners.forEach(handler => {
+      try {
+        handler(w, h);
+      } catch (error) {
+        view.error(error);
+      }
+    });
+  }
+  /**
+   * Extend an event with additional view-specific methods.
+   * Adds a new property ('vega') to an event that provides a number
+   * of methods for querying information about the current interaction.
+   * The vega object provides the following methods:
+   *   view - Returns the backing View instance.
+   *   item - Returns the currently active scenegraph item (if any).
+   *   group - Returns the currently active scenegraph group (if any).
+   *     This method accepts a single string-typed argument indicating the name
+   *     of the desired parent group. The scenegraph will be traversed from
+   *     the item up towards the root to search for a matching group. If no
+   *     argument is provided the enclosing group for the active item is
+   *     returned, unless the item it itself a group, in which case it is
+   *     returned directly.
+   *   xy - Returns a two-element array containing the x and y coordinates for
+   *     mouse or touch events. For touch events, this is based on the first
+   *     elements in the changedTouches array. This method accepts a single
+   *     argument: either an item instance or mark name that should serve as
+   *     the reference coordinate system. If no argument is provided the
+   *     top-level view coordinate system is assumed.
+   *   x - Returns the current x-coordinate, accepts the same arguments as xy.
+   *   y - Returns the current y-coordinate, accepts the same arguments as xy.
+   * @param {Event} event - The input event to extend.
+   * @param {Item} item - The currently active scenegraph item (if any).
+   * @return {Event} - The extended input event.
+   */
+
+
+  function eventExtend(view, event, item) {
+    var r = view._renderer,
+        el = r && r.canvas(),
+        p,
+        e,
+        translate;
+
+    if (el) {
+      translate = offset(view);
+      e = event.changedTouches ? event.changedTouches[0] : event;
+      p = point(e, el);
+      p[0] -= translate[0];
+      p[1] -= translate[1];
+    }
+
+    event.dataflow = view;
+    event.item = item;
+    event.vega = extension(view, item, p);
+    return event;
+  }
+
+  function extension(view, item, point) {
+    const itemGroup = item ? item.mark.marktype === 'group' ? item : item.mark.group : null;
+
+    function group(name) {
+      var g = itemGroup,
+          i;
+      if (name) for (i = item; i; i = i.mark.group) {
+        if (i.mark.name === name) {
+          g = i;
+          break;
+        }
+      }
+      return g && g.mark && g.mark.interactive ? g : {};
+    }
+
+    function xy(item) {
+      if (!item) return point;
+      if (isString(item)) item = group(item);
+      const p = point.slice();
+
+      while (item) {
+        p[0] -= item.x || 0;
+        p[1] -= item.y || 0;
+        item = item.mark && item.mark.group;
+      }
+
+      return p;
+    }
+
+    return {
+      view: constant$4(view),
+      item: constant$4(item || {}),
+      group: group,
+      xy: xy,
+      x: item => xy(item)[0],
+      y: item => xy(item)[1]
+    };
+  }
+
+  const VIEW$1 = 'view',
+        TIMER = 'timer',
+        WINDOW = 'window',
+        NO_TRAP = {
+    trap: false
+  };
+  /**
+   * Initialize event handling configuration.
+   * @param {object} config - The configuration settings.
+   * @return {object}
+   */
+
+  function initializeEventConfig(config) {
+    const events = extend$1({
+      defaults: {}
+    }, config);
+
+    const unpack = (obj, keys) => {
+      keys.forEach(k => {
+        if (isArray(obj[k])) obj[k] = toSet(obj[k]);
+      });
+    };
+
+    unpack(events.defaults, ['prevent', 'allow']);
+    unpack(events, ['view', 'window', 'selector']);
+    return events;
+  }
+
+  function trackEventListener(view, sources, type, handler) {
+    view._eventListeners.push({
+      type: type,
+      sources: array$5(sources),
+      handler: handler
+    });
+  }
+
+  function prevent(view, type) {
+    var def = view._eventConfig.defaults,
+        prevent = def.prevent,
+        allow = def.allow;
+    return prevent === false || allow === true ? false : prevent === true || allow === false ? true : prevent ? prevent[type] : allow ? !allow[type] : view.preventDefault();
+  }
+
+  function permit(view, key, type) {
+    const rule = view._eventConfig && view._eventConfig[key];
+
+    if (rule === false || isObject(rule) && !rule[type]) {
+      view.warn(`Blocked ${key} ${type} event listener.`);
+      return false;
+    }
+
+    return true;
+  }
+  /**
+   * Create a new event stream from an event source.
+   * @param {object} source - The event source to monitor.
+   * @param {string} type - The event type.
+   * @param {function(object): boolean} [filter] - Event filter function.
+   * @return {EventStream}
+   */
+
+
+  function events(source, type, filter) {
+    var view = this,
+        s = new EventStream(filter),
+        send = function (e, item) {
+      view.runAsync(null, () => {
+        if (source === VIEW$1 && prevent(view, type)) {
+          e.preventDefault();
+        }
+
+        s.receive(eventExtend(view, e, item));
+      });
+    },
+        sources;
+
+    if (source === TIMER) {
+      if (permit(view, 'timer', type)) {
+        view.timer(send, type);
+      }
+    } else if (source === VIEW$1) {
+      if (permit(view, 'view', type)) {
+        // send traps errors, so use {trap: false} option
+        view.addEventListener(type, send, NO_TRAP);
+      }
+    } else {
+      if (source === WINDOW) {
+        if (permit(view, 'window', type) && typeof window !== 'undefined') {
+          sources = [window];
+        }
+      } else if (typeof document !== 'undefined') {
+        if (permit(view, 'selector', type)) {
+          sources = document.querySelectorAll(source);
+        }
+      }
+
+      if (!sources) {
+        view.warn('Can not resolve event source: ' + source);
+      } else {
+        for (var i = 0, n = sources.length; i < n; ++i) {
+          sources[i].addEventListener(type, send);
+        }
+
+        trackEventListener(view, sources, type, send);
+      }
+    }
+
+    return s;
+  }
+
+  function itemFilter(event) {
+    return event.item;
+  }
+
+  function markTarget(event) {
+    // grab upstream collector feeding the mark operator
+    return event.item.mark.source;
+  }
+
+  function invoke(name) {
+    return function (_, event) {
+      return event.vega.view().changeset().encode(event.item, name);
+    };
+  }
+
+  function hover(hoverSet, leaveSet) {
+    hoverSet = [hoverSet || 'hover'];
+    leaveSet = [leaveSet || 'update', hoverSet[0]]; // invoke hover set upon mouseover
+
+    this.on(this.events('view', 'mouseover', itemFilter), markTarget, invoke(hoverSet)); // invoke leave set upon mouseout
+
+    this.on(this.events('view', 'mouseout', itemFilter), markTarget, invoke(leaveSet));
+    return this;
+  }
+  /**
+   * Finalize a View instance that is being removed.
+   * Cancel any running timers.
+   * Remove all external event listeners.
+   * Remove any currently displayed tooltip.
+   */
+
+
+  function finalize() {
+    var tooltip = this._tooltip,
+        timers = this._timers,
+        listeners = this._eventListeners,
+        n,
+        m,
+        e;
+    n = timers.length;
+
+    while (--n >= 0) {
+      timers[n].stop();
+    }
+
+    n = listeners.length;
+
+    while (--n >= 0) {
+      e = listeners[n];
+      m = e.sources.length;
+
+      while (--m >= 0) {
+        e.sources[m].removeEventListener(e.type, e.handler);
+      }
+    }
+
+    if (tooltip) {
+      tooltip.call(this, this._handler, null, null, null);
+    }
+
+    return this;
+  }
+
+  function element(tag, attr, text) {
+    const el = document.createElement(tag);
+
+    for (const key in attr) el.setAttribute(key, attr[key]);
+
+    if (text != null) el.textContent = text;
+    return el;
+  }
+
+  const BindClass = 'vega-bind',
+        NameClass = 'vega-bind-name',
+        RadioClass = 'vega-bind-radio';
+  /**
+   * Bind a signal to an external HTML input element. The resulting two-way
+   * binding will propagate input changes to signals, and propagate signal
+   * changes to the input element state. If this view instance has no parent
+   * element, we assume the view is headless and no bindings are created.
+   * @param {Element|string} el - The parent DOM element to which the input
+   *   element should be appended as a child. If string-valued, this argument
+   *   will be treated as a CSS selector. If null or undefined, the parent
+   *   element of this view will be used as the element.
+   * @param {object} param - The binding parameters which specify the signal
+   *   to bind to, the input element type, and type-specific configuration.
+   * @return {View} - This view instance.
+   */
+
+  function bind(view, el, binding) {
+    if (!el) return;
+    const param = binding.param;
+    let bind = binding.state;
+
+    if (!bind) {
+      bind = binding.state = {
+        elements: null,
+        active: false,
+        set: null,
+        update: value => {
+          if (value != view.signal(param.signal)) {
+            view.runAsync(null, () => {
+              bind.source = true;
+              view.signal(param.signal, value);
+            });
+          }
+        }
+      };
+
+      if (param.debounce) {
+        bind.update = debounce(param.debounce, bind.update);
+      }
+    }
+
+    const create = param.input == null && param.element ? target : generate;
+    create(bind, el, param, view);
+
+    if (!bind.active) {
+      view.on(view._signals[param.signal], null, () => {
+        bind.source ? bind.source = false : bind.set(view.signal(param.signal));
+      });
+      bind.active = true;
+    }
+
+    return bind;
+  }
+  /**
+   * Bind the signal to an external EventTarget.
+   */
+
+
+  function target(bind, node, param, view) {
+    const type = param.event || 'input';
+
+    const handler = () => bind.update(node.value); // initialize signal value to external input value
+
+
+    view.signal(param.signal, node.value); // listen for changes on the element
+
+    node.addEventListener(type, handler); // register with view, so we can remove it upon finalization
+
+    trackEventListener(view, node, type, handler); // propagate change to element
+
+    bind.set = value => {
+      node.value = value;
+      node.dispatchEvent(event(type));
+    };
+  }
+
+  function event(type) {
+    return typeof Event !== 'undefined' ? new Event(type) : {
+      type
+    };
+  }
+  /**
+   * Generate an HTML input form element and bind it to a signal.
+   */
+
+
+  function generate(bind, el, param, view) {
+    const value = view.signal(param.signal);
+    const div = element('div', {
+      'class': BindClass
+    });
+    const wrapper = param.input === 'radio' ? div : div.appendChild(element('label'));
+    wrapper.appendChild(element('span', {
+      'class': NameClass
+    }, param.name || param.signal));
+    el.appendChild(div);
+    let input = form;
+
+    switch (param.input) {
+      case 'checkbox':
+        input = checkbox;
+        break;
+
+      case 'select':
+        input = select;
+        break;
+
+      case 'radio':
+        input = radio;
+        break;
+
+      case 'range':
+        input = range;
+        break;
+    }
+
+    input(bind, wrapper, param, value);
+  }
+  /**
+   * Generates an arbitrary input form element.
+   * The input type is controlled via user-provided parameters.
+   */
+
+
+  function form(bind, el, param, value) {
+    const node = element('input');
+
+    for (const key in param) {
+      if (key !== 'signal' && key !== 'element') {
+        node.setAttribute(key === 'input' ? 'type' : key, param[key]);
+      }
+    }
+
+    node.setAttribute('name', param.signal);
+    node.value = value;
+    el.appendChild(node);
+    node.addEventListener('input', () => bind.update(node.value));
+    bind.elements = [node];
+
+    bind.set = value => node.value = value;
+  }
+  /**
+   * Generates a checkbox input element.
+   */
+
+
+  function checkbox(bind, el, param, value) {
+    const attr = {
+      type: 'checkbox',
+      name: param.signal
+    };
+    if (value) attr.checked = true;
+    const node = element('input', attr);
+    el.appendChild(node);
+    node.addEventListener('change', () => bind.update(node.checked));
+    bind.elements = [node];
+
+    bind.set = value => node.checked = !!value || null;
+  }
+  /**
+   * Generates a selection list input element.
+   */
+
+
+  function select(bind, el, param, value) {
+    const node = element('select', {
+      name: param.signal
+    }),
+          labels = param.labels || [];
+    param.options.forEach((option, i) => {
+      const attr = {
+        value: option
+      };
+      if (valuesEqual(option, value)) attr.selected = true;
+      node.appendChild(element('option', attr, (labels[i] || option) + ''));
+    });
+    el.appendChild(node);
+    node.addEventListener('change', () => {
+      bind.update(param.options[node.selectedIndex]);
+    });
+    bind.elements = [node];
+
+    bind.set = value => {
+      for (let i = 0, n = param.options.length; i < n; ++i) {
+        if (valuesEqual(param.options[i], value)) {
+          node.selectedIndex = i;
+          return;
+        }
+      }
+    };
+  }
+  /**
+   * Generates a radio button group.
+   */
+
+
+  function radio(bind, el, param, value) {
+    const group = element('span', {
+      'class': RadioClass
+    }),
+          labels = param.labels || [];
+    el.appendChild(group);
+    bind.elements = param.options.map((option, i) => {
+      const attr = {
+        type: 'radio',
+        name: param.signal,
+        value: option
+      };
+      if (valuesEqual(option, value)) attr.checked = true;
+      const input = element('input', attr);
+      input.addEventListener('change', () => bind.update(option));
+      const label = element('label', {}, (labels[i] || option) + '');
+      label.prepend(input);
+      group.appendChild(label);
+      return input;
+    });
+
+    bind.set = value => {
+      const nodes = bind.elements,
+            n = nodes.length;
+
+      for (let i = 0; i < n; ++i) {
+        if (valuesEqual(nodes[i].value, value)) nodes[i].checked = true;
+      }
+    };
+  }
+  /**
+   * Generates a slider input element.
+   */
+
+
+  function range(bind, el, param, value) {
+    value = value !== undefined ? value : (+param.max + +param.min) / 2;
+    const max = param.max != null ? param.max : Math.max(100, +value) || 100,
+          min = param.min || Math.min(0, max, +value) || 0,
+          step = param.step || tickStep(min, max, 100);
+    const node = element('input', {
+      type: 'range',
+      name: param.signal,
+      min: min,
+      max: max,
+      step: step
+    });
+    node.value = value;
+    const span = element('span', {}, +value);
+    el.appendChild(node);
+    el.appendChild(span);
+
+    const update = () => {
+      span.textContent = node.value;
+      bind.update(+node.value);
+    }; // subscribe to both input and change
+
+
+    node.addEventListener('input', update);
+    node.addEventListener('change', update);
+    bind.elements = [node];
+
+    bind.set = value => {
+      node.value = value;
+      span.textContent = value;
+    };
+  }
+
+  function valuesEqual(a, b) {
+    return a === b || a + '' === b + '';
+  }
+
+  function initializeRenderer(view, r, el, constructor, scaleFactor, opt) {
+    r = r || new constructor(view.loader());
+    return r.initialize(el, width(view), height(view), offset(view), scaleFactor, opt).background(view.background());
+  }
+
+  function trap(view, fn) {
+    return !fn ? null : function () {
+      try {
+        fn.apply(this, arguments);
+      } catch (error) {
+        view.error(error);
+      }
+    };
+  }
+
+  function initializeHandler(view, prevHandler, el, constructor) {
+    // instantiate scenegraph handler
+    const handler = new constructor(view.loader(), trap(view, view.tooltip())).scene(view.scenegraph().root).initialize(el, offset(view), view); // transfer event handlers
+
+    if (prevHandler) {
+      prevHandler.handlers().forEach(h => {
+        handler.on(h.type, h.handler);
+      });
+    }
+
+    return handler;
+  }
+
+  function initialize(el, elBind) {
+    const view = this,
+          type = view._renderType,
+          config = view._eventConfig.bind,
+          module = renderModule(type); // containing dom element
+
+    el = view._el = el ? lookup$1(view, el, true) : null; // initialize aria attributes
+
+    initializeAria(view); // select appropriate renderer & handler
+
+    if (!module) view.error('Unrecognized renderer type: ' + type);
+    const Handler = module.handler || CanvasHandler,
+          Renderer = el ? module.renderer : module.headless; // initialize renderer and input handler
+
+    view._renderer = !Renderer ? null : initializeRenderer(view, view._renderer, el, Renderer);
+    view._handler = initializeHandler(view, view._handler, el, Handler);
+    view._redraw = true; // initialize signal bindings
+
+    if (el && config !== 'none') {
+      elBind = elBind ? view._elBind = lookup$1(view, elBind, true) : el.appendChild(element('form', {
+        'class': 'vega-bindings'
+      }));
+
+      view._bind.forEach(_ => {
+        if (_.param.element && config !== 'container') {
+          _.element = lookup$1(view, _.param.element, !!_.param.input);
+        }
+      });
+
+      view._bind.forEach(_ => {
+        bind(view, _.element || elBind, _);
+      });
+    }
+
+    return view;
+  }
+
+  function lookup$1(view, el, clear) {
+    if (typeof el === 'string') {
+      if (typeof document !== 'undefined') {
+        el = document.querySelector(el);
+
+        if (!el) {
+          view.error('Signal bind element not found: ' + el);
+          return null;
+        }
+      } else {
+        view.error('DOM document instance not found.');
+        return null;
+      }
+    }
+
+    if (el && clear) {
+      try {
+        el.innerHTML = '';
+      } catch (e) {
+        el = null;
+        view.error(e);
+      }
+    }
+
+    return el;
+  }
+
+  const number$1 = _ => +_ || 0;
+
+  const paddingObject$1 = _ => ({
+    top: _,
+    bottom: _,
+    left: _,
+    right: _
+  });
+
+  function padding(_) {
+    return isObject(_) ? {
+      top: number$1(_.top),
+      bottom: number$1(_.bottom),
+      left: number$1(_.left),
+      right: number$1(_.right)
+    } : paddingObject$1(number$1(_));
+  }
+  /**
+   * Render the current scene in a headless fashion.
+   * This method is asynchronous, returning a Promise instance.
+   * @return {Promise} - A Promise that resolves to a renderer.
+   */
+
+
+  async function renderHeadless(view, type, scaleFactor, opt) {
+    const module = renderModule(type),
+          ctr = module && module.headless;
+    if (!ctr) error('Unrecognized renderer type: ' + type);
+    await view.runAsync();
+    return initializeRenderer(view, null, null, ctr, scaleFactor, opt).renderAsync(view._scenegraph.root);
+  }
+  /**
+   * Produce an image URL for the visualization. Depending on the type
+   * parameter, the generated URL contains data for either a PNG or SVG image.
+   * The URL can be used (for example) to download images of the visualization.
+   * This method is asynchronous, returning a Promise instance.
+   * @param {string} type - The image type. One of 'svg', 'png' or 'canvas'.
+   *   The 'canvas' and 'png' types are synonyms for a PNG image.
+   * @return {Promise} - A promise that resolves to an image URL.
+   */
+
+
+  async function renderToImageURL(type, scaleFactor) {
+    if (type !== RenderType.Canvas && type !== RenderType.SVG && type !== RenderType.PNG) {
+      error('Unrecognized image type: ' + type);
+    }
+
+    const r = await renderHeadless(this, type, scaleFactor);
+    return type === RenderType.SVG ? toBlobURL(r.svg(), 'image/svg+xml') : r.canvas().toDataURL('image/png');
+  }
+
+  function toBlobURL(data, mime) {
+    const blob = new Blob([data], {
+      type: mime
+    });
+    return window.URL.createObjectURL(blob);
+  }
+  /**
+   * Produce a Canvas instance containing a rendered visualization.
+   * This method is asynchronous, returning a Promise instance.
+   * @return {Promise} - A promise that resolves to a Canvas instance.
+   */
+
+
+  async function renderToCanvas(scaleFactor, opt) {
+    const r = await renderHeadless(this, RenderType.Canvas, scaleFactor, opt);
+    return r.canvas();
+  }
+  /**
+   * Produce a rendered SVG string of the visualization.
+   * This method is asynchronous, returning a Promise instance.
+   * @return {Promise} - A promise that resolves to an SVG string.
+   */
+
+
+  async function renderToSVG(scaleFactor) {
+    const r = await renderHeadless(this, RenderType.SVG, scaleFactor);
+    return r.svg();
+  }
+
+  function runtime(view, spec, expr) {
+    return context(view, transforms, functionContext, expr).parse(spec);
+  }
+
+  function scale$1(name) {
+    var scales = this._runtime.scales;
+
+    if (!has$1(scales, name)) {
+      error('Unrecognized scale or projection: ' + name);
+    }
+
+    return scales[name].value;
+  }
+
+  var Width = 'width',
+      Height = 'height',
+      Padding = 'padding',
+      Skip$1 = {
+    skip: true
+  };
+
+  function viewWidth(view, width) {
+    var a = view.autosize(),
+        p = view.padding();
+    return width - (a && a.contains === Padding ? p.left + p.right : 0);
+  }
+
+  function viewHeight(view, height) {
+    var a = view.autosize(),
+        p = view.padding();
+    return height - (a && a.contains === Padding ? p.top + p.bottom : 0);
+  }
+
+  function initializeResize(view) {
+    var s = view._signals,
+        w = s[Width],
+        h = s[Height],
+        p = s[Padding];
+
+    function resetSize() {
+      view._autosize = view._resize = 1;
+    } // respond to width signal
+
+
+    view._resizeWidth = view.add(null, _ => {
+      view._width = _.size;
+      view._viewWidth = viewWidth(view, _.size);
+      resetSize();
+    }, {
+      size: w
+    }); // respond to height signal
+
+    view._resizeHeight = view.add(null, _ => {
+      view._height = _.size;
+      view._viewHeight = viewHeight(view, _.size);
+      resetSize();
+    }, {
+      size: h
+    }); // respond to padding signal
+
+    const resizePadding = view.add(null, resetSize, {
+      pad: p
+    }); // set rank to run immediately after source signal
+
+    view._resizeWidth.rank = w.rank + 1;
+    view._resizeHeight.rank = h.rank + 1;
+    resizePadding.rank = p.rank + 1;
+  }
+
+  function resizeView(viewWidth, viewHeight, width, height, origin, auto) {
+    this.runAfter(view => {
+      let rerun = 0; // reset autosize flag
+
+      view._autosize = 0; // width value changed: update signal, skip resize op
+
+      if (view.width() !== width) {
+        rerun = 1;
+        view.signal(Width, width, Skip$1); // set width, skip update calc
+
+        view._resizeWidth.skip(true); // skip width resize handler
+
+      } // height value changed: update signal, skip resize op
+
+
+      if (view.height() !== height) {
+        rerun = 1;
+        view.signal(Height, height, Skip$1); // set height, skip update calc
+
+        view._resizeHeight.skip(true); // skip height resize handler
+
+      } // view width changed: update view property, set resize flag
+
+
+      if (view._viewWidth !== viewWidth) {
+        view._resize = 1;
+        view._viewWidth = viewWidth;
+      } // view height changed: update view property, set resize flag
+
+
+      if (view._viewHeight !== viewHeight) {
+        view._resize = 1;
+        view._viewHeight = viewHeight;
+      } // origin changed: update view property, set resize flag
+
+
+      if (view._origin[0] !== origin[0] || view._origin[1] !== origin[1]) {
+        view._resize = 1;
+        view._origin = origin;
+      } // run dataflow on width/height signal change
+
+
+      if (rerun) view.run('enter');
+      if (auto) view.runAfter(v => v.resize());
+    }, false, 1);
+  }
+  /**
+   * Get the current view state, consisting of signal values and/or data sets.
+   * @param {object} [options] - Options flags indicating which state to export.
+   *   If unspecified, all signals and data sets will be exported.
+   * @param {function(string, Operator):boolean} [options.signals] - Optional
+   *   predicate function for testing if a signal should be included in the
+   *   exported state. If unspecified, all signals will be included, except for
+   *   those named 'parent' or those which refer to a Transform value.
+   * @param {function(string, object):boolean} [options.data] - Optional
+   *   predicate function for testing if a data set's input should be included
+   *   in the exported state. If unspecified, all data sets that have been
+   *   explicitly modified will be included.
+   * @param {boolean} [options.recurse=true] - Flag indicating if the exported
+   *   state should recursively include state from group mark sub-contexts.
+   * @return {object} - An object containing the exported state values.
+   */
+
+
+  function getState(options) {
+    return this._runtime.getState(options || {
+      data: dataTest,
+      signals: signalTest,
+      recurse: true
+    });
+  }
+
+  function dataTest(name, data) {
+    return data.modified && isArray(data.input.value) && name.indexOf('_:vega:_');
+  }
+
+  function signalTest(name, op) {
+    return !(name === 'parent' || op instanceof transforms.proxy);
+  }
+  /**
+   * Sets the current view state and updates the view by invoking run.
+   * @param {object} state - A state object containing signal and/or
+   *   data set values, following the format used by the getState method.
+   * @return {View} - This view instance.
+   */
+
+
+  function setState(state) {
+    this.runAsync(null, v => {
+      v._trigger = false;
+
+      v._runtime.setState(state);
+    }, v => {
+      v._trigger = true;
+    });
+    return this;
+  }
+
+  function timer(callback, delay) {
+    function tick(elapsed) {
+      callback({
+        timestamp: Date.now(),
+        elapsed: elapsed
+      });
+    }
+
+    this._timers.push(interval(tick, delay));
+  }
+
+  function defaultTooltip(handler, event, item, value) {
+    const el = handler.element();
+    if (el) el.setAttribute('title', formatTooltip(value));
+  }
+
+  function formatTooltip(value) {
+    return value == null ? '' : isArray(value) ? formatArray(value) : isObject(value) && !isDate$1(value) ? formatObject(value) : value + '';
+  }
+
+  function formatObject(obj) {
+    return Object.keys(obj).map(key => {
+      const v = obj[key];
+      return key + ': ' + (isArray(v) ? formatArray(v) : formatValue(v));
+    }).join('\n');
+  }
+
+  function formatArray(value) {
+    return '[' + value.map(formatValue).join(', ') + ']';
+  }
+
+  function formatValue(value) {
+    return isArray(value) ? '[\u2026]' : isObject(value) && !isDate$1(value) ? '{\u2026}' : value;
+  }
+  /**
+   * Create a new View instance from a Vega dataflow runtime specification.
+   * The generated View will not immediately be ready for display. Callers
+   * should also invoke the initialize method (e.g., to set the parent
+   * DOM element in browser-based deployment) and then invoke the run
+   * method to evaluate the dataflow graph. Rendering will automatically
+   * be performed upon dataflow runs.
+   * @constructor
+   * @param {object} spec - The Vega dataflow runtime specification.
+   */
+
+
+  function View$1(spec, options) {
+    const view = this;
+    options = options || {};
+    Dataflow.call(view);
+    if (options.loader) view.loader(options.loader);
+    if (options.logger) view.logger(options.logger);
+    if (options.logLevel != null) view.logLevel(options.logLevel);
+
+    if (options.locale || spec.locale) {
+      const loc = extend$1({}, spec.locale, options.locale);
+      view.locale(locale(loc.number, loc.time));
+    }
+
+    view._el = null;
+    view._elBind = null;
+    view._renderType = options.renderer || RenderType.Canvas;
+    view._scenegraph = new Scenegraph();
+    const root = view._scenegraph.root; // initialize renderer, handler and event management
+
+    view._renderer = null;
+    view._tooltip = options.tooltip || defaultTooltip, view._redraw = true;
+    view._handler = new CanvasHandler().scene(root);
+    view._globalCursor = false;
+    view._preventDefault = false;
+    view._timers = [];
+    view._eventListeners = [];
+    view._resizeListeners = []; // initialize event configuration
+
+    view._eventConfig = initializeEventConfig(spec.eventConfig);
+    view.globalCursor(view._eventConfig.globalCursor); // initialize dataflow graph
+
+    const ctx = runtime(view, spec, options.expr);
+    view._runtime = ctx;
+    view._signals = ctx.signals;
+    view._bind = (spec.bindings || []).map(_ => ({
+      state: null,
+      param: extend$1({}, _)
+    })); // initialize scenegraph
+
+    if (ctx.root) ctx.root.set(root);
+    root.source = ctx.data.root.input;
+    view.pulse(ctx.data.root.input, view.changeset().insert(root.items)); // initialize view size
+
+    view._width = view.width();
+    view._height = view.height();
+    view._viewWidth = viewWidth(view, view._width);
+    view._viewHeight = viewHeight(view, view._height);
+    view._origin = [0, 0];
+    view._resize = 0;
+    view._autosize = 1;
+    initializeResize(view); // initialize background color
+
+    background(view); // initialize cursor
+
+    cursor(view); // initialize view description
+
+    view.description(spec.description); // initialize hover proessing, if requested
+
+    if (options.hover) view.hover(); // initialize DOM container(s) and renderer
+
+    if (options.container) view.initialize(options.container, options.bind);
+  }
+
+  function lookupSignal(view, name) {
+    return has$1(view._signals, name) ? view._signals[name] : error('Unrecognized signal name: ' + $(name));
+  }
+
+  function findOperatorHandler(op, handler) {
+    const h = (op._targets || []).filter(op => op._update && op._update.handler === handler);
+    return h.length ? h[0] : null;
+  }
+
+  function addOperatorListener(view, name, op, handler) {
+    let h = findOperatorHandler(op, handler);
+
+    if (!h) {
+      h = trap(view, () => handler(name, op.value));
+      h.handler = handler;
+      view.on(op, null, h);
+    }
+
+    return view;
+  }
+
+  function removeOperatorListener(view, op, handler) {
+    const h = findOperatorHandler(op, handler);
+    if (h) op._targets.remove(h);
+    return view;
+  }
+
+  inherits(View$1, Dataflow, {
+    // -- DATAFLOW / RENDERING ----
+    async evaluate(encode, prerun, postrun) {
+      // evaluate dataflow and prerun
+      await Dataflow.prototype.evaluate.call(this, encode, prerun); // render as needed
+
+      if (this._redraw || this._resize) {
+        try {
+          if (this._renderer) {
+            if (this._resize) {
+              this._resize = 0;
+              resizeRenderer(this);
+            }
+
+            await this._renderer.renderAsync(this._scenegraph.root);
+          }
+
+          this._redraw = false;
+        } catch (e) {
+          this.error(e);
+        }
+      } // evaluate postrun
+
+
+      if (postrun) asyncCallback(this, postrun);
+      return this;
+    },
+
+    dirty(item) {
+      this._redraw = true;
+      this._renderer && this._renderer.dirty(item);
+    },
+
+    // -- GET / SET ----
+    description(text) {
+      if (arguments.length) {
+        const desc = text != null ? text + '' : null;
+        if (desc !== this._desc) ariaLabel(this._el, this._desc = desc);
+        return this;
+      }
+
+      return this._desc;
+    },
+
+    container() {
+      return this._el;
+    },
+
+    scenegraph() {
+      return this._scenegraph;
+    },
+
+    origin() {
+      return this._origin.slice();
+    },
+
+    signal(name, value, options) {
+      const op = lookupSignal(this, name);
+      return arguments.length === 1 ? op.value : this.update(op, value, options);
+    },
+
+    width(_) {
+      return arguments.length ? this.signal('width', _) : this.signal('width');
+    },
+
+    height(_) {
+      return arguments.length ? this.signal('height', _) : this.signal('height');
+    },
+
+    padding(_) {
+      return arguments.length ? this.signal('padding', padding(_)) : padding(this.signal('padding'));
+    },
+
+    autosize(_) {
+      return arguments.length ? this.signal('autosize', _) : this.signal('autosize');
+    },
+
+    background(_) {
+      return arguments.length ? this.signal('background', _) : this.signal('background');
+    },
+
+    renderer(type) {
+      if (!arguments.length) return this._renderType;
+      if (!renderModule(type)) error('Unrecognized renderer type: ' + type);
+
+      if (type !== this._renderType) {
+        this._renderType = type;
+
+        this._resetRenderer();
+      }
+
+      return this;
+    },
+
+    tooltip(handler) {
+      if (!arguments.length) return this._tooltip;
+
+      if (handler !== this._tooltip) {
+        this._tooltip = handler;
+
+        this._resetRenderer();
+      }
+
+      return this;
+    },
+
+    loader(loader) {
+      if (!arguments.length) return this._loader;
+
+      if (loader !== this._loader) {
+        Dataflow.prototype.loader.call(this, loader);
+
+        this._resetRenderer();
+      }
+
+      return this;
+    },
+
+    resize() {
+      // set flag to perform autosize
+      this._autosize = 1; // touch autosize signal to ensure top-level ViewLayout runs
+
+      return this.touch(lookupSignal(this, 'autosize'));
+    },
+
+    _resetRenderer() {
+      if (this._renderer) {
+        this._renderer = null;
+        this.initialize(this._el, this._elBind);
+      }
+    },
+
+    // -- SIZING ----
+    _resizeView: resizeView,
+
+    // -- EVENT HANDLING ----
+    addEventListener(type, handler, options) {
+      let callback = handler;
+
+      if (!(options && options.trap === false)) {
+        // wrap callback in error handler
+        callback = trap(this, handler);
+        callback.raw = handler;
+      }
+
+      this._handler.on(type, callback);
+
+      return this;
+    },
+
+    removeEventListener(type, handler) {
+      var handlers = this._handler.handlers(type),
+          i = handlers.length,
+          h,
+          t; // search registered handlers, remove if match found
+
+
+      while (--i >= 0) {
+        t = handlers[i].type;
+        h = handlers[i].handler;
+
+        if (type === t && (handler === h || handler === h.raw)) {
+          this._handler.off(t, h);
+
+          break;
+        }
+      }
+
+      return this;
+    },
+
+    addResizeListener(handler) {
+      const l = this._resizeListeners;
+
+      if (l.indexOf(handler) < 0) {
+        // add handler if it isn't already registered
+        // note: error trapping handled elsewhere, so
+        // no need to wrap handlers here
+        l.push(handler);
+      }
+
+      return this;
+    },
+
+    removeResizeListener(handler) {
+      var l = this._resizeListeners,
+          i = l.indexOf(handler);
+
+      if (i >= 0) {
+        l.splice(i, 1);
+      }
+
+      return this;
+    },
+
+    addSignalListener(name, handler) {
+      return addOperatorListener(this, name, lookupSignal(this, name), handler);
+    },
+
+    removeSignalListener(name, handler) {
+      return removeOperatorListener(this, lookupSignal(this, name), handler);
+    },
+
+    addDataListener(name, handler) {
+      return addOperatorListener(this, name, dataref(this, name).values, handler);
+    },
+
+    removeDataListener(name, handler) {
+      return removeOperatorListener(this, dataref(this, name).values, handler);
+    },
+
+    globalCursor(_) {
+      if (arguments.length) {
+        if (this._globalCursor !== !!_) {
+          const prev = setCursor(this, null); // clear previous cursor
+
+          this._globalCursor = !!_;
+          if (prev) setCursor(this, prev); // swap cursor
+        }
+
+        return this;
+      } else {
+        return this._globalCursor;
+      }
+    },
+
+    preventDefault(_) {
+      if (arguments.length) {
+        this._preventDefault = _;
+        return this;
+      } else {
+        return this._preventDefault;
+      }
+    },
+
+    timer,
+    events,
+    finalize,
+    hover,
+    // -- DATA ----
+    data,
+    change,
+    insert,
+    remove,
+    // -- SCALES --
+    scale: scale$1,
+    // -- INITIALIZATION ----
+    initialize,
+    // -- HEADLESS RENDERING ----
+    toImageURL: renderToImageURL,
+    toCanvas: renderToCanvas,
+    toSVG: renderToSVG,
+    // -- SAVE / RESTORE STATE ----
+    getState,
+    setState
+  });
+
+  const VIEW = 'view',
+        LBRACK = '[',
+        RBRACK = ']',
+        LBRACE = '{',
+        RBRACE = '}',
+        COLON = ':',
+        COMMA = ',',
+        NAME = '@',
+        GT = '>',
+        ILLEGAL = /[[\]{}]/,
+        DEFAULT_MARKS = {
+    '*': 1,
+    arc: 1,
+    area: 1,
+    group: 1,
+    image: 1,
+    line: 1,
+    path: 1,
+    rect: 1,
+    rule: 1,
+    shape: 1,
+    symbol: 1,
+    text: 1,
+    trail: 1
+  };
+  let DEFAULT_SOURCE, MARKS;
+  /**
+   * Parse an event selector string.
+   * Returns an array of event stream definitions.
+   */
+
+  function eventSelector(selector, source, marks) {
+    DEFAULT_SOURCE = source || VIEW;
+    MARKS = marks || DEFAULT_MARKS;
+    return parseMerge(selector.trim()).map(parseSelector);
+  }
+
+  function isMarkType(type) {
+    return MARKS[type];
+  }
+
+  function find(s, i, endChar, pushChar, popChar) {
+    const n = s.length;
+    let count = 0,
+        c;
+
+    for (; i < n; ++i) {
+      c = s[i];
+      if (!count && c === endChar) return i;else if (popChar && popChar.indexOf(c) >= 0) --count;else if (pushChar && pushChar.indexOf(c) >= 0) ++count;
+    }
+
+    return i;
+  }
+
+  function parseMerge(s) {
+    const output = [],
+          n = s.length;
+    let start = 0,
+        i = 0;
+
+    while (i < n) {
+      i = find(s, i, COMMA, LBRACK + LBRACE, RBRACK + RBRACE);
+      output.push(s.substring(start, i).trim());
+      start = ++i;
+    }
+
+    if (output.length === 0) {
+      throw 'Empty event selector: ' + s;
+    }
+
+    return output;
+  }
+
+  function parseSelector(s) {
+    return s[0] === '[' ? parseBetween(s) : parseStream$1(s);
+  }
+
+  function parseBetween(s) {
+    const n = s.length;
+    let i = 1,
+        b;
+    i = find(s, i, RBRACK, LBRACK, RBRACK);
+
+    if (i === n) {
+      throw 'Empty between selector: ' + s;
+    }
+
+    b = parseMerge(s.substring(1, i));
+
+    if (b.length !== 2) {
+      throw 'Between selector must have two elements: ' + s;
+    }
+
+    s = s.slice(i + 1).trim();
+
+    if (s[0] !== GT) {
+      throw 'Expected \'>\' after between selector: ' + s;
+    }
+
+    b = b.map(parseSelector);
+    const stream = parseSelector(s.slice(1).trim());
+
+    if (stream.between) {
+      return {
+        between: b,
+        stream: stream
+      };
+    } else {
+      stream.between = b;
+    }
+
+    return stream;
+  }
+
+  function parseStream$1(s) {
+    const stream = {
+      source: DEFAULT_SOURCE
+    },
+          source = [];
+    let throttle = [0, 0],
+        markname = 0,
+        start = 0,
+        n = s.length,
+        i = 0,
+        j,
+        filter; // extract throttle from end
+
+    if (s[n - 1] === RBRACE) {
+      i = s.lastIndexOf(LBRACE);
+
+      if (i >= 0) {
+        try {
+          throttle = parseThrottle(s.substring(i + 1, n - 1));
+        } catch (e) {
+          throw 'Invalid throttle specification: ' + s;
+        }
+
+        s = s.slice(0, i).trim();
+        n = s.length;
+      } else throw 'Unmatched right brace: ' + s;
+
+      i = 0;
+    }
+
+    if (!n) throw s; // set name flag based on first char
+
+    if (s[0] === NAME) markname = ++i; // extract first part of multi-part stream selector
+
+    j = find(s, i, COLON);
+
+    if (j < n) {
+      source.push(s.substring(start, j).trim());
+      start = i = ++j;
+    } // extract remaining part of stream selector
+
+
+    i = find(s, i, LBRACK);
+
+    if (i === n) {
+      source.push(s.substring(start, n).trim());
+    } else {
+      source.push(s.substring(start, i).trim());
+      filter = [];
+      start = ++i;
+      if (start === n) throw 'Unmatched left bracket: ' + s;
+    } // extract filters
+
+
+    while (i < n) {
+      i = find(s, i, RBRACK);
+      if (i === n) throw 'Unmatched left bracket: ' + s;
+      filter.push(s.substring(start, i).trim());
+      if (i < n - 1 && s[++i] !== LBRACK) throw 'Expected left bracket: ' + s;
+      start = ++i;
+    } // marshall event stream specification
+
+
+    if (!(n = source.length) || ILLEGAL.test(source[n - 1])) {
+      throw 'Invalid event selector: ' + s;
+    }
+
+    if (n > 1) {
+      stream.type = source[1];
+
+      if (markname) {
+        stream.markname = source[0].slice(1);
+      } else if (isMarkType(source[0])) {
+        stream.marktype = source[0];
+      } else {
+        stream.source = source[0];
+      }
+    } else {
+      stream.type = source[0];
+    }
+
+    if (stream.type.slice(-1) === '!') {
+      stream.consume = true;
+      stream.type = stream.type.slice(0, -1);
+    }
+
+    if (filter != null) stream.filter = filter;
+    if (throttle[0]) stream.throttle = throttle[0];
+    if (throttle[1]) stream.debounce = throttle[1];
+    return stream;
+  }
+
+  function parseThrottle(s) {
+    const a = s.split(COMMA);
+    if (!s.length || a.length > 2) throw s;
+    return a.map(_ => {
+      const x = +_;
+      if (x !== x) throw s;
+      return x;
+    });
+  }
+
+  function parseAutosize(spec) {
+    return isObject(spec) ? spec : {
+      type: spec || 'pad'
+    };
+  }
+
+  const number = _ => +_ || 0;
+
+  const paddingObject = _ => ({
+    top: _,
+    bottom: _,
+    left: _,
+    right: _
+  });
+
+  function parsePadding(spec) {
+    return !isObject(spec) ? paddingObject(number(spec)) : spec.signal ? spec : {
+      top: number(spec.top),
+      bottom: number(spec.bottom),
+      left: number(spec.left),
+      right: number(spec.right)
+    };
+  }
+
+  const encoder = _ => isObject(_) && !isArray(_) ? extend$1({}, _) : {
+    value: _
+  };
+
+  function addEncode(object, name, value, set) {
+    if (value != null) {
+      const isEncoder = isObject(value) && !isArray(value) || isArray(value) && value.length && isObject(value[0]); // Always assign signal to update, even if the signal is from the enter block
+
+      if (isEncoder) {
+        object.update[name] = value;
+      } else {
+        object[set || 'enter'][name] = {
+          value: value
+        };
+      }
+
+      return 1;
+    } else {
+      return 0;
+    }
+  }
+
+  function addEncoders(object, enter, update) {
+    for (const name in enter) {
+      addEncode(object, name, enter[name]);
+    }
+
+    for (const name in update) {
+      addEncode(object, name, update[name], 'update');
+    }
+  }
+
+  function extendEncode(encode, extra, skip) {
+    for (const name in extra) {
+      if (skip && has$1(skip, name)) continue;
+      encode[name] = extend$1(encode[name] || {}, extra[name]);
+    }
+
+    return encode;
+  }
+
+  function has(key, encode) {
+    return encode && (encode.enter && encode.enter[key] || encode.update && encode.update[key]);
+  }
+
+  const MarkRole = 'mark';
+  const FrameRole = 'frame';
+  const ScopeRole = 'scope';
+  const AxisRole = 'axis';
+  const AxisDomainRole = 'axis-domain';
+  const AxisGridRole = 'axis-grid';
+  const AxisLabelRole = 'axis-label';
+  const AxisTickRole = 'axis-tick';
+  const AxisTitleRole = 'axis-title';
+  const LegendRole = 'legend';
+  const LegendBandRole = 'legend-band';
+  const LegendEntryRole = 'legend-entry';
+  const LegendGradientRole = 'legend-gradient';
+  const LegendLabelRole = 'legend-label';
+  const LegendSymbolRole = 'legend-symbol';
+  const LegendTitleRole = 'legend-title';
+  const TitleRole = 'title';
+  const TitleTextRole = 'title-text';
+  const TitleSubtitleRole = 'title-subtitle';
+
+  function applyDefaults(encode, type, role, style, config) {
+    const defaults = {},
+          enter = {};
+    let update, key, skip, props; // if text mark, apply global lineBreak settings (#2370)
+
+    key = 'lineBreak';
+
+    if (type === 'text' && config[key] != null && !has(key, encode)) {
+      applyDefault(defaults, key, config[key]);
+    } // ignore legend and axis roles
+
+
+    if (role == 'legend' || String(role).startsWith('axis')) {
+      role = null;
+    } // resolve mark config
+
+
+    props = role === FrameRole ? config.group : role === MarkRole ? extend$1({}, config.mark, config[type]) : null;
+
+    for (key in props) {
+      // do not apply defaults if relevant fields are defined
+      skip = has(key, encode) || (key === 'fill' || key === 'stroke') && (has('fill', encode) || has('stroke', encode));
+      if (!skip) applyDefault(defaults, key, props[key]);
+    } // resolve styles, apply with increasing precedence
+
+
+    array$5(style).forEach(name => {
+      const props = config.style && config.style[name];
+
+      for (const key in props) {
+        if (!has(key, encode)) {
+          applyDefault(defaults, key, props[key]);
+        }
+      }
+    });
+    encode = extend$1({}, encode); // defensive copy
+
+    for (key in defaults) {
+      props = defaults[key];
+
+      if (props.signal) {
+        (update = update || {})[key] = props;
+      } else {
+        enter[key] = props;
+      }
+    }
+
+    encode.enter = extend$1(enter, encode.enter);
+    if (update) encode.update = extend$1(update, encode.update);
+    return encode;
+  }
+
+  function applyDefault(defaults, key, value) {
+    defaults[key] = value && value.signal ? {
+      signal: value.signal
+    } : {
+      value: value
+    };
+  }
+
+  const scaleRef = scale => isString(scale) ? $(scale) : scale.signal ? `(${scale.signal})` : field(scale);
+
+  function entry$1(enc) {
+    if (enc.gradient != null) {
+      return gradient(enc);
+    }
+
+    let value = enc.signal ? `(${enc.signal})` : enc.color ? color(enc.color) : enc.field != null ? field(enc.field) : enc.value !== undefined ? $(enc.value) : undefined;
+
+    if (enc.scale != null) {
+      value = scale(enc, value);
+    }
+
+    if (value === undefined) {
+      value = null;
+    }
+
+    if (enc.exponent != null) {
+      value = `pow(${value},${property(enc.exponent)})`;
+    }
+
+    if (enc.mult != null) {
+      value += `*${property(enc.mult)}`;
+    }
+
+    if (enc.offset != null) {
+      value += `+${property(enc.offset)}`;
+    }
+
+    if (enc.round) {
+      value = `round(${value})`;
+    }
+
+    return value;
+  }
+
+  const _color = (type, x, y, z) => `(${type}(${[x, y, z].map(entry$1).join(',')})+'')`;
+
+  function color(enc) {
+    return enc.c ? _color('hcl', enc.h, enc.c, enc.l) : enc.h || enc.s ? _color('hsl', enc.h, enc.s, enc.l) : enc.l || enc.a ? _color('lab', enc.l, enc.a, enc.b) : enc.r || enc.g || enc.b ? _color('rgb', enc.r, enc.g, enc.b) : null;
+  }
+
+  function gradient(enc) {
+    // map undefined to null; expression lang does not allow undefined
+    const args = [enc.start, enc.stop, enc.count].map(_ => _ == null ? null : $(_)); // trim null inputs from the end
+
+    while (args.length && peek$1(args) == null) args.pop();
+
+    args.unshift(scaleRef(enc.gradient));
+    return `gradient(${args.join(',')})`;
+  }
+
+  function property(property) {
+    return isObject(property) ? '(' + entry$1(property) + ')' : property;
+  }
+
+  function field(ref) {
+    return resolveField(isObject(ref) ? ref : {
+      datum: ref
+    });
+  }
+
+  function resolveField(ref) {
+    let object, level, field;
+
+    if (ref.signal) {
+      object = 'datum';
+      field = ref.signal;
+    } else if (ref.group || ref.parent) {
+      level = Math.max(1, ref.level || 1);
+      object = 'item';
+
+      while (level-- > 0) {
+        object += '.mark.group';
+      }
+
+      if (ref.parent) {
+        field = ref.parent;
+        object += '.datum';
+      } else {
+        field = ref.group;
+      }
+    } else if (ref.datum) {
+      object = 'datum';
+      field = ref.datum;
+    } else {
+      error('Invalid field reference: ' + $(ref));
+    }
+
+    if (!ref.signal) {
+      field = isString(field) ? splitAccessPath(field).map($).join('][') : resolveField(field);
+    }
+
+    return object + '[' + field + ']';
+  }
+
+  function scale(enc, value) {
+    const scale = scaleRef(enc.scale);
+
+    if (enc.range != null) {
+      // pull value from scale range
+      value = `lerp(_range(${scale}), ${+enc.range})`;
+    } else {
+      // run value through scale and/or pull scale bandwidth
+      if (value !== undefined) value = `_scale(${scale}, ${value})`;
+
+      if (enc.band) {
+        value = (value ? value + '+' : '') + `_bandwidth(${scale})` + (+enc.band === 1 ? '' : '*' + property(enc.band));
+
+        if (enc.extra) {
+          // include logic to handle extraneous elements
+          value = `(datum.extra ? _scale(${scale}, datum.extra.value) : ${value})`;
+        }
+      }
+
+      if (value == null) value = '0';
+    }
+
+    return value;
+  }
+
+  function rule(enc) {
+    let code = '';
+    enc.forEach(rule => {
+      const value = entry$1(rule);
+      code += rule.test ? `(${rule.test})?${value}:` : value;
+    }); // if no else clause, terminate with null (#1366)
+
+    if (peek$1(code) === ':') {
+      code += 'null';
+    }
+
+    return code;
+  }
+
+  function parseEncode(encode, type, role, style, scope, params) {
+    const enc = {};
+    params = params || {};
+    params.encoders = {
+      $encode: enc
+    };
+    encode = applyDefaults(encode, type, role, style, scope.config);
+
+    for (const key in encode) {
+      enc[key] = parseBlock(encode[key], type, params, scope);
+    }
+
+    return params;
+  }
+
+  function parseBlock(block, marktype, params, scope) {
+    const channels = {},
+          fields = {};
+
+    for (const name in block) {
+      if (block[name] != null) {
+        // skip any null entries
+        channels[name] = parse$1(expr(block[name]), scope, params, fields);
+      }
+    }
+
+    return {
+      $expr: {
+        marktype,
+        channels
+      },
+      $fields: Object.keys(fields),
+      $output: Object.keys(block)
+    };
+  }
+
+  function expr(enc) {
+    return isArray(enc) ? rule(enc) : entry$1(enc);
+  }
+
+  function parse$1(code, scope, params, fields) {
+    const expr = parser(code, scope);
+    expr.$fields.forEach(name => fields[name] = 1);
+    extend$1(params, expr.$params);
+    return expr.$expr;
+  }
+
+  const OUTER = 'outer',
+        OUTER_INVALID = ['value', 'update', 'init', 'react', 'bind'];
+
+  function outerError(prefix, name) {
+    error(prefix + ' for "outer" push: ' + $(name));
+  }
+
+  function parseSignal(signal, scope) {
+    const name = signal.name;
+
+    if (signal.push === OUTER) {
+      // signal must already be defined, raise error if not
+      if (!scope.signals[name]) outerError('No prior signal definition', name); // signal push must not use properties reserved for standard definition
+
+      OUTER_INVALID.forEach(prop => {
+        if (signal[prop] !== undefined) outerError('Invalid property ', prop);
+      });
+    } else {
+      // define a new signal in the current scope
+      const op = scope.addSignal(name, signal.value);
+      if (signal.react === false) op.react = false;
+      if (signal.bind) scope.addBinding(name, signal.bind);
+    }
+  }
+
+  function Entry(type, value, params, parent) {
+    this.id = -1;
+    this.type = type;
+    this.value = value;
+    this.params = params;
+    if (parent) this.parent = parent;
+  }
+
+  function entry(type, value, params, parent) {
+    return new Entry(type, value, params, parent);
+  }
+
+  function operator(value, params) {
+    return entry('operator', value, params);
+  } // -----
+
+
+  function ref(op) {
+    const ref = {
+      $ref: op.id
+    }; // if operator not yet registered, cache ref to resolve later
+
+    if (op.id < 0) (op.refs = op.refs || []).push(ref);
+    return ref;
+  }
+
+  function fieldRef$1(field, name) {
+    return name ? {
+      $field: field,
+      $name: name
+    } : {
+      $field: field
+    };
+  }
+
+  const keyFieldRef = fieldRef$1('key');
+
+  function compareRef(fields, orders) {
+    return {
+      $compare: fields,
+      $order: orders
+    };
+  }
+
+  function keyRef(fields, flat) {
+    const ref = {
+      $key: fields
+    };
+    if (flat) ref.$flat = true;
+    return ref;
+  } // -----
+
+
+  const Ascending = 'ascending';
+  const Descending = 'descending';
+
+  function sortKey(sort) {
+    return !isObject(sort) ? '' : (sort.order === Descending ? '-' : '+') + aggrField(sort.op, sort.field);
+  }
+
+  function aggrField(op, field) {
+    return (op && op.signal ? '$' + op.signal : op || '') + (op && field ? '_' : '') + (field && field.signal ? '$' + field.signal : field || '');
+  } // -----
+
+
+  const Scope$1 = 'scope';
+  const View = 'view';
+
+  function isSignal(_) {
+    return _ && _.signal;
+  }
+
+  function isExpr$1(_) {
+    return _ && _.expr;
+  }
+
+  function hasSignal(_) {
+    if (isSignal(_)) return true;
+    if (isObject(_)) for (const key in _) {
+      if (hasSignal(_[key])) return true;
+    }
+    return false;
+  }
+
+  function value(specValue, defaultValue) {
+    return specValue != null ? specValue : defaultValue;
+  }
+
+  function deref(v) {
+    return v && v.signal || v;
+  }
+
+  const Timer = 'timer';
+
+  function parseStream(stream, scope) {
+    const method = stream.merge ? mergeStream : stream.stream ? nestedStream : stream.type ? eventStream : error('Invalid stream specification: ' + $(stream));
+    return method(stream, scope);
+  }
+
+  function eventSource(source) {
+    return source === Scope$1 ? View : source || View;
+  }
+
+  function mergeStream(stream, scope) {
+    const list = stream.merge.map(s => parseStream(s, scope)),
+          entry = streamParameters({
+      merge: list
+    }, stream, scope);
+    return scope.addStream(entry).id;
+  }
+
+  function nestedStream(stream, scope) {
+    const id = parseStream(stream.stream, scope),
+          entry = streamParameters({
+      stream: id
+    }, stream, scope);
+    return scope.addStream(entry).id;
+  }
+
+  function eventStream(stream, scope) {
+    let id;
+
+    if (stream.type === Timer) {
+      id = scope.event(Timer, stream.throttle);
+      stream = {
+        between: stream.between,
+        filter: stream.filter
+      };
+    } else {
+      id = scope.event(eventSource(stream.source), stream.type);
+    }
+
+    const entry = streamParameters({
+      stream: id
+    }, stream, scope);
+    return Object.keys(entry).length === 1 ? id : scope.addStream(entry).id;
+  }
+
+  function streamParameters(entry, stream, scope) {
+    let param = stream.between;
+
+    if (param) {
+      if (param.length !== 2) {
+        error('Stream "between" parameter must have 2 entries: ' + $(stream));
+      }
+
+      entry.between = [parseStream(param[0], scope), parseStream(param[1], scope)];
+    }
+
+    param = stream.filter ? [].concat(stream.filter) : [];
+
+    if (stream.marktype || stream.markname || stream.markrole) {
+      // add filter for mark type, name and/or role
+      param.push(filterMark(stream.marktype, stream.markname, stream.markrole));
+    }
+
+    if (stream.source === Scope$1) {
+      // add filter to limit events from sub-scope only
+      param.push('inScope(event.item)');
+    }
+
+    if (param.length) {
+      entry.filter = parser('(' + param.join(')&&(') + ')', scope).$expr;
+    }
+
+    if ((param = stream.throttle) != null) {
+      entry.throttle = +param;
+    }
+
+    if ((param = stream.debounce) != null) {
+      entry.debounce = +param;
+    }
+
+    if (stream.consume) {
+      entry.consume = true;
+    }
+
+    return entry;
+  }
+
+  function filterMark(type, name, role) {
+    const item = 'event.item';
+    return item + (type && type !== '*' ? '&&' + item + '.mark.marktype===\'' + type + '\'' : '') + (role ? '&&' + item + '.mark.role===\'' + role + '\'' : '') + (name ? '&&' + item + '.mark.name===\'' + name + '\'' : '');
+  }
+
+  const OP_VALUE_EXPR = {
+    code: '_.$value',
+    ast: {
+      type: 'Identifier',
+      value: 'value'
+    }
+  };
+
+  function parseUpdate(spec, scope, target) {
+    const encode = spec.encode,
+          entry = {
+      target: target
+    };
+    let events = spec.events,
+        update = spec.update,
+        sources = [];
+
+    if (!events) {
+      error('Signal update missing events specification.');
+    } // interpret as an event selector string
+
+
+    if (isString(events)) {
+      events = eventSelector(events, scope.isSubscope() ? Scope$1 : View);
+    } // separate event streams from signal updates
+
+
+    events = array$5(events).filter(s => s.signal || s.scale ? (sources.push(s), 0) : 1); // merge internal operator listeners
+
+    if (sources.length > 1) {
+      sources = [mergeSources(sources)];
+    } // merge event streams, include as source
+
+
+    if (events.length) {
+      sources.push(events.length > 1 ? {
+        merge: events
+      } : events[0]);
+    }
+
+    if (encode != null) {
+      if (update) error('Signal encode and update are mutually exclusive.');
+      update = 'encode(item(),' + $(encode) + ')';
+    } // resolve update value
+
+
+    entry.update = isString(update) ? parser(update, scope) : update.expr != null ? parser(update.expr, scope) : update.value != null ? update.value : update.signal != null ? {
+      $expr: OP_VALUE_EXPR,
+      $params: {
+        $value: scope.signalRef(update.signal)
+      }
+    } : error('Invalid signal update specification.');
+
+    if (spec.force) {
+      entry.options = {
+        force: true
+      };
+    }
+
+    sources.forEach(source => scope.addUpdate(extend$1(streamSource(source, scope), entry)));
+  }
+
+  function streamSource(stream, scope) {
+    return {
+      source: stream.signal ? scope.signalRef(stream.signal) : stream.scale ? scope.scaleRef(stream.scale) : parseStream(stream, scope)
+    };
+  }
+
+  function mergeSources(sources) {
+    return {
+      signal: '[' + sources.map(s => s.scale ? 'scale("' + s.scale + '")' : s.signal) + ']'
+    };
+  }
+
+  function parseSignalUpdates(signal, scope) {
+    const op = scope.getSignal(signal.name);
+    let expr = signal.update;
+
+    if (signal.init) {
+      if (expr) {
+        error('Signals can not include both init and update expressions.');
+      } else {
+        expr = signal.init;
+        op.initonly = true;
+      }
+    }
+
+    if (expr) {
+      expr = parser(expr, scope);
+      op.update = expr.$expr;
+      op.params = expr.$params;
+    }
+
+    if (signal.on) {
+      signal.on.forEach(_ => parseUpdate(_, scope, op.id));
+    }
+  }
+
+  const transform = name => (params, value, parent) => entry(name, value, params || undefined, parent);
+
+  const Aggregate = transform('aggregate');
+  const AxisTicks = transform('axisticks');
+  const Bound = transform('bound');
+  const Collect = transform('collect');
+  const Compare = transform('compare');
+  const DataJoin = transform('datajoin');
+  const Encode = transform('encode');
+  const Expression = transform('expression');
+  const Facet = transform('facet');
+  const Field = transform('field');
+  const Key = transform('key');
+  const LegendEntries = transform('legendentries');
+  const Load = transform('load');
+  const Mark = transform('mark');
+  const MultiExtent = transform('multiextent');
+  const MultiValues = transform('multivalues');
+  const Overlap = transform('overlap');
+  const Params = transform('params');
+  const PreFacet = transform('prefacet');
+  const Projection = transform('projection');
+  const Proxy = transform('proxy');
+  const Relay = transform('relay');
+  const Render = transform('render');
+  const Scale = transform('scale');
+  const Sieve = transform('sieve');
+  const SortItems = transform('sortitems');
+  const ViewLayout = transform('viewlayout');
+  const Values = transform('values');
+  let FIELD_REF_ID = 0;
+  const MULTIDOMAIN_SORT_OPS = {
+    min: 'min',
+    max: 'max',
+    count: 'sum'
+  };
+
+  function initScale(spec, scope) {
+    const type = spec.type || 'linear';
+
+    if (!isValidScaleType(type)) {
+      error('Unrecognized scale type: ' + $(type));
+    }
+
+    scope.addScale(spec.name, {
+      type,
+      domain: undefined
+    });
+  }
+
+  function parseScale(spec, scope) {
+    const params = scope.getScale(spec.name).params;
+    let key;
+    params.domain = parseScaleDomain(spec.domain, spec, scope);
+
+    if (spec.range != null) {
+      params.range = parseScaleRange(spec, scope, params);
+    }
+
+    if (spec.interpolate != null) {
+      parseScaleInterpolate(spec.interpolate, params);
+    }
+
+    if (spec.nice != null) {
+      params.nice = parseScaleNice(spec.nice);
+    }
+
+    if (spec.bins != null) {
+      params.bins = parseScaleBins(spec.bins, scope);
+    }
+
+    for (key in spec) {
+      if (has$1(params, key) || key === 'name') continue;
+      params[key] = parseLiteral(spec[key], scope);
+    }
+  }
+
+  function parseLiteral(v, scope) {
+    return !isObject(v) ? v : v.signal ? scope.signalRef(v.signal) : error('Unsupported object: ' + $(v));
+  }
+
+  function parseArray(v, scope) {
+    return v.signal ? scope.signalRef(v.signal) : v.map(v => parseLiteral(v, scope));
+  }
+
+  function dataLookupError(name) {
+    error('Can not find data set: ' + $(name));
+  } // -- SCALE DOMAIN ----
+
+
+  function parseScaleDomain(domain, spec, scope) {
+    if (!domain) {
+      if (spec.domainMin != null || spec.domainMax != null) {
+        error('No scale domain defined for domainMin/domainMax to override.');
+      }
+
+      return; // default domain
+    }
+
+    return domain.signal ? scope.signalRef(domain.signal) : (isArray(domain) ? explicitDomain : domain.fields ? multipleDomain : singularDomain)(domain, spec, scope);
+  }
+
+  function explicitDomain(domain, spec, scope) {
+    return domain.map(v => parseLiteral(v, scope));
+  }
+
+  function singularDomain(domain, spec, scope) {
+    const data = scope.getData(domain.data);
+    if (!data) dataLookupError(domain.data);
+    return isDiscrete(spec.type) ? data.valuesRef(scope, domain.field, parseSort(domain.sort, false)) : isQuantile(spec.type) ? data.domainRef(scope, domain.field) : data.extentRef(scope, domain.field);
+  }
+
+  function multipleDomain(domain, spec, scope) {
+    const data = domain.data,
+          fields = domain.fields.reduce((dom, d) => {
+      d = isString(d) ? {
+        data: data,
+        field: d
+      } : isArray(d) || d.signal ? fieldRef(d, scope) : d;
+      dom.push(d);
+      return dom;
+    }, []);
+    return (isDiscrete(spec.type) ? ordinalMultipleDomain : isQuantile(spec.type) ? quantileMultipleDomain : numericMultipleDomain)(domain, scope, fields);
+  }
+
+  function fieldRef(data, scope) {
+    const name = '_:vega:_' + FIELD_REF_ID++,
+          coll = Collect({});
+
+    if (isArray(data)) {
+      coll.value = {
+        $ingest: data
+      };
+    } else if (data.signal) {
+      const code = 'setdata(' + $(name) + ',' + data.signal + ')';
+      coll.params.input = scope.signalRef(code);
+    }
+
+    scope.addDataPipeline(name, [coll, Sieve({})]);
+    return {
+      data: name,
+      field: 'data'
+    };
+  }
+
+  function ordinalMultipleDomain(domain, scope, fields) {
+    const sort = parseSort(domain.sort, true);
+    let a, v; // get value counts for each domain field
+
+    const counts = fields.map(f => {
+      const data = scope.getData(f.data);
+      if (!data) dataLookupError(f.data);
+      return data.countsRef(scope, f.field, sort);
+    }); // aggregate the results from each domain field
+
+    const p = {
+      groupby: keyFieldRef,
+      pulse: counts
+    };
+
+    if (sort) {
+      a = sort.op || 'count';
+      v = sort.field ? aggrField(a, sort.field) : 'count';
+      p.ops = [MULTIDOMAIN_SORT_OPS[a]];
+      p.fields = [scope.fieldRef(v)];
+      p.as = [v];
+    }
+
+    a = scope.add(Aggregate(p)); // collect aggregate output
+
+    const c = scope.add(Collect({
+      pulse: ref(a)
+    })); // extract values for combined domain
+
+    v = scope.add(Values({
+      field: keyFieldRef,
+      sort: scope.sortRef(sort),
+      pulse: ref(c)
+    }));
+    return ref(v);
+  }
+
+  function parseSort(sort, multidomain) {
+    if (sort) {
+      if (!sort.field && !sort.op) {
+        if (isObject(sort)) sort.field = 'key';else sort = {
+          field: 'key'
+        };
+      } else if (!sort.field && sort.op !== 'count') {
+        error('No field provided for sort aggregate op: ' + sort.op);
+      } else if (multidomain && sort.field) {
+        if (sort.op && !MULTIDOMAIN_SORT_OPS[sort.op]) {
+          error('Multiple domain scales can not be sorted using ' + sort.op);
+        }
+      }
+    }
+
+    return sort;
+  }
+
+  function quantileMultipleDomain(domain, scope, fields) {
+    // get value arrays for each domain field
+    const values = fields.map(f => {
+      const data = scope.getData(f.data);
+      if (!data) dataLookupError(f.data);
+      return data.domainRef(scope, f.field);
+    }); // combine value arrays
+
+    return ref(scope.add(MultiValues({
+      values: values
+    })));
+  }
+
+  function numericMultipleDomain(domain, scope, fields) {
+    // get extents for each domain field
+    const extents = fields.map(f => {
+      const data = scope.getData(f.data);
+      if (!data) dataLookupError(f.data);
+      return data.extentRef(scope, f.field);
+    }); // combine extents
+
+    return ref(scope.add(MultiExtent({
+      extents: extents
+    })));
+  } // -- SCALE BINS -----
+
+
+  function parseScaleBins(v, scope) {
+    return v.signal || isArray(v) ? parseArray(v, scope) : scope.objectProperty(v);
+  } // -- SCALE NICE -----
+
+
+  function parseScaleNice(nice) {
+    return isObject(nice) ? {
+      interval: parseLiteral(nice.interval),
+      step: parseLiteral(nice.step)
+    } : parseLiteral(nice);
+  } // -- SCALE INTERPOLATION -----
+
+
+  function parseScaleInterpolate(interpolate, params) {
+    params.interpolate = parseLiteral(interpolate.type || interpolate);
+
+    if (interpolate.gamma != null) {
+      params.interpolateGamma = parseLiteral(interpolate.gamma);
+    }
+  } // -- SCALE RANGE -----
+
+
+  function parseScaleRange(spec, scope, params) {
+    const config = scope.config.range;
+    let range = spec.range;
+
+    if (range.signal) {
+      return scope.signalRef(range.signal);
+    } else if (isString(range)) {
+      if (config && has$1(config, range)) {
+        spec = extend$1({}, spec, {
+          range: config[range]
+        });
+        return parseScaleRange(spec, scope, params);
+      } else if (range === 'width') {
+        range = [0, {
+          signal: 'width'
+        }];
+      } else if (range === 'height') {
+        range = isDiscrete(spec.type) ? [0, {
+          signal: 'height'
+        }] : [{
+          signal: 'height'
+        }, 0];
+      } else {
+        error('Unrecognized scale range value: ' + $(range));
+      }
+    } else if (range.scheme) {
+      params.scheme = isArray(range.scheme) ? parseArray(range.scheme, scope) : parseLiteral(range.scheme, scope);
+      if (range.extent) params.schemeExtent = parseArray(range.extent, scope);
+      if (range.count) params.schemeCount = parseLiteral(range.count, scope);
+      return;
+    } else if (range.step) {
+      params.rangeStep = parseLiteral(range.step, scope);
+      return;
+    } else if (isDiscrete(spec.type) && !isArray(range)) {
+      return parseScaleDomain(range, spec, scope);
+    } else if (!isArray(range)) {
+      error('Unsupported range type: ' + $(range));
+    }
+
+    return range.map(v => (isArray(v) ? parseArray : parseLiteral)(v, scope));
+  }
+
+  function parseProjection(proj, scope) {
+    const config = scope.config.projection || {},
+          params = {};
+
+    for (const name in proj) {
+      if (name === 'name') continue;
+      params[name] = parseParameter$1(proj[name], name, scope);
+    } // apply projection defaults from config
+
+
+    for (const name in config) {
+      if (params[name] == null) {
+        params[name] = parseParameter$1(config[name], name, scope);
+      }
+    }
+
+    scope.addProjection(proj.name, params);
+  }
+
+  function parseParameter$1(_, name, scope) {
+    return isArray(_) ? _.map(_ => parseParameter$1(_, name, scope)) : !isObject(_) ? _ : _.signal ? scope.signalRef(_.signal) : name === 'fit' ? _ : error('Unsupported parameter object: ' + $(_));
+  }
+
+  const Top = 'top';
+  const Left = 'left';
+  const Right = 'right';
+  const Bottom = 'bottom';
+  const Center = 'center';
+  const Vertical = 'vertical';
+  const Start = 'start';
+  const Middle = 'middle';
+  const End = 'end';
+  const Index = 'index';
+  const Label = 'label';
+  const Offset = 'offset';
+  const Perc = 'perc';
+  const Perc2 = 'perc2';
+  const Value = 'value';
+  const GuideLabelStyle = 'guide-label';
+  const GuideTitleStyle = 'guide-title';
+  const GroupTitleStyle = 'group-title';
+  const GroupSubtitleStyle = 'group-subtitle';
+  const Symbols = 'symbol';
+  const Gradient = 'gradient';
+  const Discrete = 'discrete';
+  const Size = 'size';
+  const Shape = 'shape';
+  const Fill = 'fill';
+  const Stroke = 'stroke';
+  const StrokeWidth = 'strokeWidth';
+  const StrokeDash = 'strokeDash';
+  const Opacity = 'opacity'; // Encoding channels supported by legends
+  // In priority order of 'canonical' scale
+
+  const LegendScales = [Size, Shape, Fill, Stroke, StrokeWidth, StrokeDash, Opacity];
+  const Skip = {
+    name: 1,
+    style: 1,
+    interactive: 1
+  };
+  const zero = {
+    value: 0
+  };
+  const one = {
+    value: 1
+  };
+  const GroupMark = 'group';
+  const RectMark = 'rect';
+  const RuleMark = 'rule';
+  const SymbolMark = 'symbol';
+  const TextMark = 'text';
+
+  function guideGroup(mark) {
+    mark.type = GroupMark;
+    mark.interactive = mark.interactive || false;
+    return mark;
+  }
+
+  function lookup(spec, config) {
+    const _ = (name, dflt) => value(spec[name], value(config[name], dflt));
+
+    _.isVertical = s => Vertical === value(spec.direction, config.direction || (s ? config.symbolDirection : config.gradientDirection));
+
+    _.gradientLength = () => value(spec.gradientLength, config.gradientLength || config.gradientWidth);
+
+    _.gradientThickness = () => value(spec.gradientThickness, config.gradientThickness || config.gradientHeight);
+
+    _.entryColumns = () => value(spec.columns, value(config.columns, +_.isVertical(true)));
+
+    return _;
+  }
+
+  function getEncoding(name, encode) {
+    const v = encode && (encode.update && encode.update[name] || encode.enter && encode.enter[name]);
+    return v && v.signal ? v : v ? v.value : null;
+  }
+
+  function getStyle(name, scope, style) {
+    const s = scope.config.style[style];
+    return s && s[name];
+  }
+
+  function anchorExpr(s, e, m) {
+    return `item.anchor === '${Start}' ? ${s} : item.anchor === '${End}' ? ${e} : ${m}`;
+  }
+
+  const alignExpr$1 = anchorExpr($(Left), $(Right), $(Center));
+
+  function tickBand(_) {
+    const v = _('tickBand');
+
+    let offset = _('tickOffset'),
+        band,
+        extra;
+
+    if (!v) {
+      // if no tick band entry, fall back on other properties
+      band = _('bandPosition');
+      extra = _('tickExtra');
+    } else if (v.signal) {
+      // if signal, augment code to interpret values
+      band = {
+        signal: `(${v.signal}) === 'extent' ? 1 : 0.5`
+      };
+      extra = {
+        signal: `(${v.signal}) === 'extent'`
+      };
+
+      if (!isObject(offset)) {
+        offset = {
+          signal: `(${v.signal}) === 'extent' ? 0 : ${offset}`
+        };
+      }
+    } else if (v === 'extent') {
+      // if constant, simply set values
+      band = 1;
+      extra = true;
+      offset = 0;
+    } else {
+      band = 0.5;
+      extra = false;
+    }
+
+    return {
+      extra,
+      band,
+      offset
+    };
+  }
+
+  function extendOffset(value, offset) {
+    return !offset ? value : !value ? offset : !isObject(value) ? {
+      value,
+      offset
+    } : Object.assign({}, value, {
+      offset: extendOffset(value.offset, offset)
+    });
+  }
+
+  function guideMark(mark, extras) {
+    if (extras) {
+      mark.name = extras.name;
+      mark.style = extras.style || mark.style;
+      mark.interactive = !!extras.interactive;
+      mark.encode = extendEncode(mark.encode, extras, Skip);
+    } else {
+      mark.interactive = false;
+    }
+
+    return mark;
+  }
+
+  function legendGradient(spec, scale, config, userEncode) {
+    const _ = lookup(spec, config),
+          vertical = _.isVertical(),
+          thickness = _.gradientThickness(),
+          length = _.gradientLength();
+
+    let enter, start, stop, width, height;
+
+    if (vertical) {
+      start = [0, 1];
+      stop = [0, 0];
+      width = thickness;
+      height = length;
+    } else {
+      start = [0, 0];
+      stop = [1, 0];
+      width = length;
+      height = thickness;
+    }
+
+    const encode = {
+      enter: enter = {
+        opacity: zero,
+        x: zero,
+        y: zero,
+        width: encoder(width),
+        height: encoder(height)
+      },
+      update: extend$1({}, enter, {
+        opacity: one,
+        fill: {
+          gradient: scale,
+          start: start,
+          stop: stop
+        }
+      }),
+      exit: {
+        opacity: zero
+      }
+    };
+    addEncoders(encode, {
+      stroke: _('gradientStrokeColor'),
+      strokeWidth: _('gradientStrokeWidth')
+    }, {
+      // update
+      opacity: _('gradientOpacity')
+    });
+    return guideMark({
+      type: RectMark,
+      role: LegendGradientRole,
+      encode
+    }, userEncode);
+  }
+
+  function legendGradientDiscrete(spec, scale, config, userEncode, dataRef) {
+    const _ = lookup(spec, config),
+          vertical = _.isVertical(),
+          thickness = _.gradientThickness(),
+          length = _.gradientLength();
+
+    let u,
+        v,
+        uu,
+        vv,
+        adjust = '';
+    vertical ? (u = 'y', uu = 'y2', v = 'x', vv = 'width', adjust = '1-') : (u = 'x', uu = 'x2', v = 'y', vv = 'height');
+    const enter = {
+      opacity: zero,
+      fill: {
+        scale: scale,
+        field: Value
+      }
+    };
+    enter[u] = {
+      signal: adjust + 'datum.' + Perc,
+      mult: length
+    };
+    enter[v] = zero;
+    enter[uu] = {
+      signal: adjust + 'datum.' + Perc2,
+      mult: length
+    };
+    enter[vv] = encoder(thickness);
+    const encode = {
+      enter: enter,
+      update: extend$1({}, enter, {
+        opacity: one
+      }),
+      exit: {
+        opacity: zero
+      }
+    };
+    addEncoders(encode, {
+      stroke: _('gradientStrokeColor'),
+      strokeWidth: _('gradientStrokeWidth')
+    }, {
+      // update
+      opacity: _('gradientOpacity')
+    });
+    return guideMark({
+      type: RectMark,
+      role: LegendBandRole,
+      key: Value,
+      from: dataRef,
+      encode
+    }, userEncode);
+  }
+
+  const alignExpr = `datum.${Perc}<=0?"${Left}":datum.${Perc}>=1?"${Right}":"${Center}"`,
+        baselineExpr = `datum.${Perc}<=0?"${Bottom}":datum.${Perc}>=1?"${Top}":"${Middle}"`;
+
+  function legendGradientLabels(spec, config, userEncode, dataRef) {
+    const _ = lookup(spec, config),
+          vertical = _.isVertical(),
+          thickness = encoder(_.gradientThickness()),
+          length = _.gradientLength();
+
+    let overlap = _('labelOverlap'),
+        enter,
+        update,
+        u,
+        v,
+        adjust = '';
+
+    const encode = {
+      enter: enter = {
+        opacity: zero
+      },
+      update: update = {
+        opacity: one,
+        text: {
+          field: Label
+        }
+      },
+      exit: {
+        opacity: zero
+      }
+    };
+    addEncoders(encode, {
+      fill: _('labelColor'),
+      fillOpacity: _('labelOpacity'),
+      font: _('labelFont'),
+      fontSize: _('labelFontSize'),
+      fontStyle: _('labelFontStyle'),
+      fontWeight: _('labelFontWeight'),
+      limit: value(spec.labelLimit, config.gradientLabelLimit)
+    });
+
+    if (vertical) {
+      enter.align = {
+        value: 'left'
+      };
+      enter.baseline = update.baseline = {
+        signal: baselineExpr
+      };
+      u = 'y';
+      v = 'x';
+      adjust = '1-';
+    } else {
+      enter.align = update.align = {
+        signal: alignExpr
+      };
+      enter.baseline = {
+        value: 'top'
+      };
+      u = 'x';
+      v = 'y';
+    }
+
+    enter[u] = update[u] = {
+      signal: adjust + 'datum.' + Perc,
+      mult: length
+    };
+    enter[v] = update[v] = thickness;
+    thickness.offset = value(spec.labelOffset, config.gradientLabelOffset) || 0;
+    overlap = overlap ? {
+      separation: _('labelSeparation'),
+      method: overlap,
+      order: 'datum.' + Index
+    } : undefined; // type, role, style, key, dataRef, encode, extras
+
+    return guideMark({
+      type: TextMark,
+      role: LegendLabelRole,
+      style: GuideLabelStyle,
+      key: Value,
+      from: dataRef,
+      encode,
+      overlap
+    }, userEncode);
+  }
+
+  function legendSymbolGroups(spec, config, userEncode, dataRef, columns) {
+    const _ = lookup(spec, config),
+          entries = userEncode.entries,
+          interactive = !!(entries && entries.interactive),
+          name = entries ? entries.name : undefined,
+          height = _('clipHeight'),
+          symbolOffset = _('symbolOffset'),
+          valueRef = {
+      data: 'value'
+    },
+          xSignal = `(${columns}) ? datum.${Offset} : datum.${Size}`,
+          yEncode = height ? encoder(height) : {
+      field: Size
+    },
+          index = `datum.${Index}`,
+          ncols = `max(1, ${columns})`;
+
+    let encode, enter, update, nrows, sort;
+    yEncode.mult = 0.5; // -- LEGEND SYMBOLS --
+
+    encode = {
+      enter: enter = {
+        opacity: zero,
+        x: {
+          signal: xSignal,
+          mult: 0.5,
+          offset: symbolOffset
+        },
+        y: yEncode
+      },
+      update: update = {
+        opacity: one,
+        x: enter.x,
+        y: enter.y
+      },
+      exit: {
+        opacity: zero
+      }
+    };
+    let baseFill = null,
+        baseStroke = null;
+
+    if (!spec.fill) {
+      baseFill = config.symbolBaseFillColor;
+      baseStroke = config.symbolBaseStrokeColor;
+    }
+
+    addEncoders(encode, {
+      fill: _('symbolFillColor', baseFill),
+      shape: _('symbolType'),
+      size: _('symbolSize'),
+      stroke: _('symbolStrokeColor', baseStroke),
+      strokeDash: _('symbolDash'),
+      strokeDashOffset: _('symbolDashOffset'),
+      strokeWidth: _('symbolStrokeWidth')
+    }, {
+      // update
+      opacity: _('symbolOpacity')
+    });
+    LegendScales.forEach(scale => {
+      if (spec[scale]) {
+        update[scale] = enter[scale] = {
+          scale: spec[scale],
+          field: Value
+        };
+      }
+    });
+    const symbols = guideMark({
+      type: SymbolMark,
+      role: LegendSymbolRole,
+      key: Value,
+      from: valueRef,
+      clip: height ? true : undefined,
+      encode
+    }, userEncode.symbols); // -- LEGEND LABELS --
+
+    const labelOffset = encoder(symbolOffset);
+    labelOffset.offset = _('labelOffset');
+    encode = {
+      enter: enter = {
+        opacity: zero,
+        x: {
+          signal: xSignal,
+          offset: labelOffset
+        },
+        y: yEncode
+      },
+      update: update = {
+        opacity: one,
+        text: {
+          field: Label
+        },
+        x: enter.x,
+        y: enter.y
+      },
+      exit: {
+        opacity: zero
+      }
+    };
+    addEncoders(encode, {
+      align: _('labelAlign'),
+      baseline: _('labelBaseline'),
+      fill: _('labelColor'),
+      fillOpacity: _('labelOpacity'),
+      font: _('labelFont'),
+      fontSize: _('labelFontSize'),
+      fontStyle: _('labelFontStyle'),
+      fontWeight: _('labelFontWeight'),
+      limit: _('labelLimit')
+    });
+    const labels = guideMark({
+      type: TextMark,
+      role: LegendLabelRole,
+      style: GuideLabelStyle,
+      key: Value,
+      from: valueRef,
+      encode
+    }, userEncode.labels); // -- LEGEND ENTRY GROUPS --
+
+    encode = {
+      enter: {
+        noBound: {
+          value: !height
+        },
+        // ignore width/height in bounds calc
+        width: zero,
+        height: height ? encoder(height) : zero,
+        opacity: zero
+      },
+      exit: {
+        opacity: zero
+      },
+      update: update = {
+        opacity: one,
+        row: {
+          signal: null
+        },
+        column: {
+          signal: null
+        }
+      }
+    }; // annotate and sort groups to ensure correct ordering
+
+    if (_.isVertical(true)) {
+      nrows = `ceil(item.mark.items.length / ${ncols})`;
+      update.row.signal = `${index}%${nrows}`;
+      update.column.signal = `floor(${index} / ${nrows})`;
+      sort = {
+        field: ['row', index]
+      };
+    } else {
+      update.row.signal = `floor(${index} / ${ncols})`;
+      update.column.signal = `${index} % ${ncols}`;
+      sort = {
+        field: index
+      };
+    } // handle zero column case (implies infinite columns)
+
+
+    update.column.signal = `(${columns})?${update.column.signal}:${index}`; // facet legend entries into sub-groups
+
+    dataRef = {
+      facet: {
+        data: dataRef,
+        name: 'value',
+        groupby: Index
+      }
+    };
+    return guideGroup({
+      role: ScopeRole,
+      from: dataRef,
+      encode: extendEncode(encode, entries, Skip),
+      marks: [symbols, labels],
+      name,
+      interactive,
+      sort
+    });
+  }
+
+  function legendSymbolLayout(spec, config) {
+    const _ = lookup(spec, config); // layout parameters for legend entries
+
+
+    return {
+      align: _('gridAlign'),
+      columns: _.entryColumns(),
+      center: {
+        row: true,
+        column: false
+      },
+      padding: {
+        row: _('rowPadding'),
+        column: _('columnPadding')
+      }
+    };
+  }
+
+  const isL = 'item.orient === "left"',
+        isR = 'item.orient === "right"',
+        isLR = `(${isL} || ${isR})`,
+        isVG = `datum.vgrad && ${isLR}`,
+        baseline = anchorExpr('"top"', '"bottom"', '"middle"'),
+        alignFlip = anchorExpr('"right"', '"left"', '"center"'),
+        exprAlign = `datum.vgrad && ${isR} ? (${alignFlip}) : (${isLR} && !(datum.vgrad && ${isL})) ? "left" : ${alignExpr$1}`,
+        exprAnchor = `item._anchor || (${isLR} ? "middle" : "start")`,
+        exprAngle = `${isVG} ? (${isL} ? -90 : 90) : 0`,
+        exprBaseline = `${isLR} ? (datum.vgrad ? (${isR} ? "bottom" : "top") : ${baseline}) : "top"`;
+
+  function legendTitle(spec, config, userEncode, dataRef) {
+    const _ = lookup(spec, config);
+
+    const encode = {
+      enter: {
+        opacity: zero
+      },
+      update: {
+        opacity: one,
+        x: {
+          field: {
+            group: 'padding'
+          }
+        },
+        y: {
+          field: {
+            group: 'padding'
+          }
+        }
+      },
+      exit: {
+        opacity: zero
+      }
+    };
+    addEncoders(encode, {
+      orient: _('titleOrient'),
+      _anchor: _('titleAnchor'),
+      anchor: {
+        signal: exprAnchor
+      },
+      angle: {
+        signal: exprAngle
+      },
+      align: {
+        signal: exprAlign
+      },
+      baseline: {
+        signal: exprBaseline
+      },
+      text: spec.title,
+      fill: _('titleColor'),
+      fillOpacity: _('titleOpacity'),
+      font: _('titleFont'),
+      fontSize: _('titleFontSize'),
+      fontStyle: _('titleFontStyle'),
+      fontWeight: _('titleFontWeight'),
+      limit: _('titleLimit'),
+      lineHeight: _('titleLineHeight')
+    }, {
+      // require update
+      align: _('titleAlign'),
+      baseline: _('titleBaseline')
+    });
+    return guideMark({
+      type: TextMark,
+      role: LegendTitleRole,
+      style: GuideTitleStyle,
+      from: dataRef,
+      encode
+    }, userEncode);
+  }
+
+  function clip(clip, scope) {
+    let expr;
+
+    if (isObject(clip)) {
+      if (clip.signal) {
+        expr = clip.signal;
+      } else if (clip.path) {
+        expr = 'pathShape(' + param(clip.path) + ')';
+      } else if (clip.sphere) {
+        expr = 'geoShape(' + param(clip.sphere) + ', {type: "Sphere"})';
+      }
+    }
+
+    return expr ? scope.signalRef(expr) : !!clip;
+  }
+
+  function param(value) {
+    return isObject(value) && value.signal ? value.signal : $(value);
+  }
+
+  function getRole(spec) {
+    const role = spec.role || '';
+    return !role.indexOf('axis') || !role.indexOf('legend') || !role.indexOf('title') ? role : spec.type === GroupMark ? ScopeRole : role || MarkRole;
+  }
+
+  function definition(spec) {
+    return {
+      marktype: spec.type,
+      name: spec.name || undefined,
+      role: spec.role || getRole(spec),
+      zindex: +spec.zindex || undefined,
+      aria: spec.aria,
+      description: spec.description
+    };
+  }
+
+  function interactive(spec, scope) {
+    return spec && spec.signal ? scope.signalRef(spec.signal) : spec === false ? false : true;
+  }
+  /**
+   * Parse a data transform specification.
+   */
+
+
+  function parseTransform(spec, scope) {
+    const def = definition$1(spec.type);
+    if (!def) error('Unrecognized transform type: ' + $(spec.type));
+    const t = entry(def.type.toLowerCase(), null, parseParameters(def, spec, scope));
+    if (spec.signal) scope.addSignal(spec.signal, scope.proxy(t));
+    t.metadata = def.metadata || {};
+    return t;
+  }
+  /**
+   * Parse all parameters of a data transform.
+   */
+
+
+  function parseParameters(def, spec, scope) {
+    const params = {},
+          n = def.params.length;
+
+    for (let i = 0; i < n; ++i) {
+      const pdef = def.params[i];
+      params[pdef.name] = parseParameter(pdef, spec, scope);
+    }
+
+    return params;
+  }
+  /**
+   * Parse a data transform parameter.
+   */
+
+
+  function parseParameter(def, spec, scope) {
+    const type = def.type,
+          value = spec[def.name];
+
+    if (type === 'index') {
+      return parseIndexParameter(def, spec, scope);
+    } else if (value === undefined) {
+      if (def.required) {
+        error('Missing required ' + $(spec.type) + ' parameter: ' + $(def.name));
+      }
+
+      return;
+    } else if (type === 'param') {
+      return parseSubParameters(def, spec, scope);
+    } else if (type === 'projection') {
+      return scope.projectionRef(spec[def.name]);
+    }
+
+    return def.array && !isSignal(value) ? value.map(v => parameterValue(def, v, scope)) : parameterValue(def, value, scope);
+  }
+  /**
+   * Parse a single parameter value.
+   */
+
+
+  function parameterValue(def, value, scope) {
+    const type = def.type;
+
+    if (isSignal(value)) {
+      return isExpr(type) ? error('Expression references can not be signals.') : isField(type) ? scope.fieldRef(value) : isCompare(type) ? scope.compareRef(value) : scope.signalRef(value.signal);
+    } else {
+      const expr = def.expr || isField(type);
+      return expr && outerExpr(value) ? scope.exprRef(value.expr, value.as) : expr && outerField(value) ? fieldRef$1(value.field, value.as) : isExpr(type) ? parser(value, scope) : isData(type) ? ref(scope.getData(value).values) : isField(type) ? fieldRef$1(value) : isCompare(type) ? scope.compareRef(value) : value;
+    }
+  }
+  /**
+   * Parse parameter for accessing an index of another data set.
+   */
+
+
+  function parseIndexParameter(def, spec, scope) {
+    if (!isString(spec.from)) {
+      error('Lookup "from" parameter must be a string literal.');
+    }
+
+    return scope.getData(spec.from).lookupRef(scope, spec.key);
+  }
+  /**
+   * Parse a parameter that contains one or more sub-parameter objects.
+   */
+
+
+  function parseSubParameters(def, spec, scope) {
+    const value = spec[def.name];
+
+    if (def.array) {
+      if (!isArray(value)) {
+        // signals not allowed!
+        error('Expected an array of sub-parameters. Instead: ' + $(value));
+      }
+
+      return value.map(v => parseSubParameter(def, v, scope));
+    } else {
+      return parseSubParameter(def, value, scope);
+    }
+  }
+  /**
+   * Parse a sub-parameter object.
+   */
+
+
+  function parseSubParameter(def, value, scope) {
+    const n = def.params.length;
+    let pdef; // loop over defs to find matching key
+
+    for (let i = 0; i < n; ++i) {
+      pdef = def.params[i];
+
+      for (const k in pdef.key) {
+        if (pdef.key[k] !== value[k]) {
+          pdef = null;
+          break;
+        }
+      }
+
+      if (pdef) break;
+    } // raise error if matching key not found
+
+
+    if (!pdef) error('Unsupported parameter: ' + $(value)); // parse params, create Params transform, return ref
+
+    const params = extend$1(parseParameters(pdef, value, scope), pdef.key);
+    return ref(scope.add(Params(params)));
+  } // -- Utilities -----
+
+
+  const outerExpr = _ => _ && _.expr;
+
+  const outerField = _ => _ && _.field;
+
+  const isData = _ => _ === 'data';
+
+  const isExpr = _ => _ === 'expr';
+
+  const isField = _ => _ === 'field';
+
+  const isCompare = _ => _ === 'compare';
+
+  function parseData$1(from, group, scope) {
+    let facet, key, op, dataRef, parent; // if no source data, generate singleton datum
+
+    if (!from) {
+      dataRef = ref(scope.add(Collect(null, [{}])));
+    } // if faceted, process facet specification
+    else if (facet = from.facet) {
+      if (!group) error('Only group marks can be faceted.'); // use pre-faceted source data, if available
+
+      if (facet.field != null) {
+        dataRef = parent = getDataRef(facet, scope);
+      } else {
+        // generate facet aggregates if no direct data specification
+        if (!from.data) {
+          op = parseTransform(extend$1({
+            type: 'aggregate',
+            groupby: array$5(facet.groupby)
+          }, facet.aggregate), scope);
+          op.params.key = scope.keyRef(facet.groupby);
+          op.params.pulse = getDataRef(facet, scope);
+          dataRef = parent = ref(scope.add(op));
+        } else {
+          parent = ref(scope.getData(from.data).aggregate);
+        }
+
+        key = scope.keyRef(facet.groupby, true);
+      }
+    } // if not yet defined, get source data reference
+
+
+    if (!dataRef) {
+      dataRef = getDataRef(from, scope);
+    }
+
+    return {
+      key: key,
+      pulse: dataRef,
+      parent: parent
+    };
+  }
+
+  function getDataRef(from, scope) {
+    return from.$ref ? from : from.data && from.data.$ref ? from.data : ref(scope.getData(from.data).output);
+  }
+
+  function DataScope(scope, input, output, values, aggr) {
+    this.scope = scope; // parent scope object
+
+    this.input = input; // first operator in pipeline (tuple input)
+
+    this.output = output; // last operator in pipeline (tuple output)
+
+    this.values = values; // operator for accessing tuples (but not tuple flow)
+    // last aggregate in transform pipeline
+
+    this.aggregate = aggr; // lookup table of field indices
+
+    this.index = {};
+  }
+
+  DataScope.fromEntries = function (scope, entries) {
+    const n = entries.length,
+          values = entries[n - 1],
+          output = entries[n - 2];
+    let input = entries[0],
+        aggr = null,
+        i = 1;
+
+    if (input && input.type === 'load') {
+      input = entries[1];
+    } // add operator entries to this scope, wire up pulse chain
+
+
+    scope.add(entries[0]);
+
+    for (; i < n; ++i) {
+      entries[i].params.pulse = ref(entries[i - 1]);
+      scope.add(entries[i]);
+      if (entries[i].type === 'aggregate') aggr = entries[i];
+    }
+
+    return new DataScope(scope, input, output, values, aggr);
+  };
+
+  function fieldKey(field) {
+    return isString(field) ? field : null;
+  }
+
+  function addSortField(scope, p, sort) {
+    const as = aggrField(sort.op, sort.field);
+    let s;
+
+    if (p.ops) {
+      for (let i = 0, n = p.as.length; i < n; ++i) {
+        if (p.as[i] === as) return;
+      }
+    } else {
+      p.ops = ['count'];
+      p.fields = [null];
+      p.as = ['count'];
+    }
+
+    if (sort.op) {
+      p.ops.push((s = sort.op.signal) ? scope.signalRef(s) : sort.op);
+      p.fields.push(scope.fieldRef(sort.field));
+      p.as.push(as);
+    }
+  }
+
+  function cache(scope, ds, name, optype, field, counts, index) {
+    const cache = ds[name] || (ds[name] = {}),
+          sort = sortKey(counts);
+    let k = fieldKey(field),
+        v,
+        op;
+
+    if (k != null) {
+      scope = ds.scope;
+      k = k + (sort ? '|' + sort : '');
+      v = cache[k];
+    }
+
+    if (!v) {
+      const params = counts ? {
+        field: keyFieldRef,
+        pulse: ds.countsRef(scope, field, counts)
+      } : {
+        field: scope.fieldRef(field),
+        pulse: ref(ds.output)
+      };
+      if (sort) params.sort = scope.sortRef(counts);
+      op = scope.add(entry(optype, undefined, params));
+      if (index) ds.index[field] = op;
+      v = ref(op);
+      if (k != null) cache[k] = v;
+    }
+
+    return v;
+  }
+
+  DataScope.prototype = {
+    countsRef(scope, field, sort) {
+      const ds = this,
+            cache = ds.counts || (ds.counts = {}),
+            k = fieldKey(field);
+      let v, a, p;
+
+      if (k != null) {
+        scope = ds.scope;
+        v = cache[k];
+      }
+
+      if (!v) {
+        p = {
+          groupby: scope.fieldRef(field, 'key'),
+          pulse: ref(ds.output)
+        };
+        if (sort && sort.field) addSortField(scope, p, sort);
+        a = scope.add(Aggregate(p));
+        v = scope.add(Collect({
+          pulse: ref(a)
+        }));
+        v = {
+          agg: a,
+          ref: ref(v)
+        };
+        if (k != null) cache[k] = v;
+      } else if (sort && sort.field) {
+        addSortField(scope, v.agg.params, sort);
+      }
+
+      return v.ref;
+    },
+
+    tuplesRef() {
+      return ref(this.values);
+    },
+
+    extentRef(scope, field) {
+      return cache(scope, this, 'extent', 'extent', field, false);
+    },
+
+    domainRef(scope, field) {
+      return cache(scope, this, 'domain', 'values', field, false);
+    },
+
+    valuesRef(scope, field, sort) {
+      return cache(scope, this, 'vals', 'values', field, sort || true);
+    },
+
+    lookupRef(scope, field) {
+      return cache(scope, this, 'lookup', 'tupleindex', field, false);
+    },
+
+    indataRef(scope, field) {
+      return cache(scope, this, 'indata', 'tupleindex', field, true, true);
+    }
+
+  };
+
+  function parseFacet(spec, scope, group) {
+    const facet = spec.from.facet,
+          name = facet.name,
+          data = getDataRef(facet, scope);
+    let op;
+
+    if (!facet.name) {
+      error('Facet must have a name: ' + $(facet));
+    }
+
+    if (!facet.data) {
+      error('Facet must reference a data set: ' + $(facet));
+    }
+
+    if (facet.field) {
+      op = scope.add(PreFacet({
+        field: scope.fieldRef(facet.field),
+        pulse: data
+      }));
+    } else if (facet.groupby) {
+      op = scope.add(Facet({
+        key: scope.keyRef(facet.groupby),
+        group: ref(scope.proxy(group.parent)),
+        pulse: data
+      }));
+    } else {
+      error('Facet must specify groupby or field: ' + $(facet));
+    } // initialize facet subscope
+
+
+    const subscope = scope.fork(),
+          source = subscope.add(Collect()),
+          values = subscope.add(Sieve({
+      pulse: ref(source)
+    }));
+    subscope.addData(name, new DataScope(subscope, source, source, values));
+    subscope.addSignal('parent', null); // parse faceted subflow
+
+    op.params.subflow = {
+      $subflow: subscope.parse(spec).toRuntime()
+    };
+  }
+
+  function parseSubflow(spec, scope, input) {
+    const op = scope.add(PreFacet({
+      pulse: input.pulse
+    })),
+          subscope = scope.fork();
+    subscope.add(Sieve());
+    subscope.addSignal('parent', null); // parse group mark subflow
+
+    op.params.subflow = {
+      $subflow: subscope.parse(spec).toRuntime()
+    };
+  }
+
+  function parseTrigger(spec, scope, name) {
+    const remove = spec.remove,
+          insert = spec.insert,
+          toggle = spec.toggle,
+          modify = spec.modify,
+          values = spec.values,
+          op = scope.add(operator());
+    const update = 'if(' + spec.trigger + ',modify("' + name + '",' + [insert, remove, toggle, modify, values].map(_ => _ == null ? 'null' : _).join(',') + '),0)';
+    const expr = parser(update, scope);
+    op.update = expr.$expr;
+    op.params = expr.$params;
+  }
+
+  function parseMark(spec, scope) {
+    const role = getRole(spec),
+          group = spec.type === GroupMark,
+          facet = spec.from && spec.from.facet,
+          overlap = spec.overlap;
+    let layout = spec.layout || role === ScopeRole || role === FrameRole,
+        ops,
+        op,
+        store,
+        enc,
+        name,
+        layoutRef,
+        boundRef;
+    const nested = role === MarkRole || layout || facet; // resolve input data
+
+    const input = parseData$1(spec.from, group, scope); // data join to map tuples to visual items
+
+    op = scope.add(DataJoin({
+      key: input.key || (spec.key ? fieldRef$1(spec.key) : undefined),
+      pulse: input.pulse,
+      clean: !group
+    }));
+    const joinRef = ref(op); // collect visual items
+
+    op = store = scope.add(Collect({
+      pulse: joinRef
+    })); // connect visual items to scenegraph
+
+    op = scope.add(Mark({
+      markdef: definition(spec),
+      interactive: interactive(spec.interactive, scope),
+      clip: clip(spec.clip, scope),
+      context: {
+        $context: true
+      },
+      groups: scope.lookup(),
+      parent: scope.signals.parent ? scope.signalRef('parent') : null,
+      index: scope.markpath(),
+      pulse: ref(op)
+    }));
+    const markRef = ref(op); // add visual encoders
+
+    op = enc = scope.add(Encode(parseEncode(spec.encode, spec.type, role, spec.style, scope, {
+      mod: false,
+      pulse: markRef
+    }))); // monitor parent marks to propagate changes
+
+    op.params.parent = scope.encode(); // add post-encoding transforms, if defined
+
+    if (spec.transform) {
+      spec.transform.forEach(_ => {
+        const tx = parseTransform(_, scope),
+              md = tx.metadata;
+
+        if (md.generates || md.changes) {
+          error('Mark transforms should not generate new data.');
+        }
+
+        if (!md.nomod) enc.params.mod = true; // update encode mod handling
+
+        tx.params.pulse = ref(op);
+        scope.add(op = tx);
+      });
+    } // if item sort specified, perform post-encoding
+
+
+    if (spec.sort) {
+      op = scope.add(SortItems({
+        sort: scope.compareRef(spec.sort),
+        pulse: ref(op)
+      }));
+    }
+
+    const encodeRef = ref(op); // add view layout operator if needed
+
+    if (facet || layout) {
+      layout = scope.add(ViewLayout({
+        layout: scope.objectProperty(spec.layout),
+        legends: scope.legends,
+        mark: markRef,
+        pulse: encodeRef
+      }));
+      layoutRef = ref(layout);
+    } // compute bounding boxes
+
+
+    const bound = scope.add(Bound({
+      mark: markRef,
+      pulse: layoutRef || encodeRef
+    }));
+    boundRef = ref(bound); // if group mark, recurse to parse nested content
+
+    if (group) {
+      // juggle layout & bounds to ensure they run *after* any faceting transforms
+      if (nested) {
+        ops = scope.operators;
+        ops.pop();
+        if (layout) ops.pop();
+      }
+
+      scope.pushState(encodeRef, layoutRef || boundRef, joinRef);
+      facet ? parseFacet(spec, scope, input) // explicit facet
+      : nested ? parseSubflow(spec, scope, input) // standard mark group
+      : scope.parse(spec); // guide group, we can avoid nested scopes
+
+      scope.popState();
+
+      if (nested) {
+        if (layout) ops.push(layout);
+        ops.push(bound);
+      }
+    } // if requested, add overlap removal transform
+
+
+    if (overlap) {
+      boundRef = parseOverlap(overlap, boundRef, scope);
+    } // render / sieve items
+
+
+    const render = scope.add(Render({
+      pulse: boundRef
+    })),
+          sieve = scope.add(Sieve({
+      pulse: ref(render)
+    }, undefined, scope.parent())); // if mark is named, make accessible as reactive geometry
+    // add trigger updates if defined
+
+    if (spec.name != null) {
+      name = spec.name;
+      scope.addData(name, new DataScope(scope, store, render, sieve));
+      if (spec.on) spec.on.forEach(on => {
+        if (on.insert || on.remove || on.toggle) {
+          error('Marks only support modify triggers.');
+        }
+
+        parseTrigger(on, scope, name);
+      });
+    }
+  }
+
+  function parseOverlap(overlap, source, scope) {
+    const method = overlap.method,
+          bound = overlap.bound,
+          sep = overlap.separation;
+    const params = {
+      separation: isSignal(sep) ? scope.signalRef(sep.signal) : sep,
+      method: isSignal(method) ? scope.signalRef(method.signal) : method,
+      pulse: source
+    };
+
+    if (overlap.order) {
+      params.sort = scope.compareRef({
+        field: overlap.order
+      });
+    }
+
+    if (bound) {
+      const tol = bound.tolerance;
+      params.boundTolerance = isSignal(tol) ? scope.signalRef(tol.signal) : +tol;
+      params.boundScale = scope.scaleRef(bound.scale);
+      params.boundOrient = bound.orient;
+    }
+
+    return ref(scope.add(Overlap(params)));
+  }
+
+  function parseLegend(spec, scope) {
+    const config = scope.config.legend,
+          encode = spec.encode || {},
+          _ = lookup(spec, config),
+          legendEncode = encode.legend || {},
+          name = legendEncode.name || undefined,
+          interactive = legendEncode.interactive,
+          style = legendEncode.style,
+          scales = {};
+
+    let scale = 0,
+        entryLayout,
+        params,
+        children; // resolve scales and 'canonical' scale name
+
+    LegendScales.forEach(s => spec[s] ? (scales[s] = spec[s], scale = scale || spec[s]) : 0);
+    if (!scale) error('Missing valid scale for legend.'); // resolve legend type (symbol, gradient, or discrete gradient)
+
+    const type = legendType(spec, scope.scaleType(scale)); // single-element data source for legend group
+
+    const datum = {
+      title: spec.title != null,
+      scales: scales,
+      type: type,
+      vgrad: type !== 'symbol' && _.isVertical()
+    };
+    const dataRef = ref(scope.add(Collect(null, [datum]))); // encoding properties for legend entry sub-group
+
+    const entryEncode = {
+      enter: {
+        x: {
+          value: 0
+        },
+        y: {
+          value: 0
+        }
+      }
+    }; // data source for legend values
+
+    const entryRef = ref(scope.add(LegendEntries(params = {
+      type: type,
+      scale: scope.scaleRef(scale),
+      count: scope.objectProperty(_('tickCount')),
+      limit: scope.property(_('symbolLimit')),
+      values: scope.objectProperty(spec.values),
+      minstep: scope.property(spec.tickMinStep),
+      formatType: scope.property(spec.formatType),
+      formatSpecifier: scope.property(spec.format)
+    }))); // continuous gradient legend
+
+    if (type === Gradient) {
+      children = [legendGradient(spec, scale, config, encode.gradient), legendGradientLabels(spec, config, encode.labels, entryRef)]; // adjust default tick count based on the gradient length
+
+      params.count = params.count || scope.signalRef(`max(2,2*floor((${deref(_.gradientLength())})/100))`);
+    } // discrete gradient legend
+    else if (type === Discrete) {
+      children = [legendGradientDiscrete(spec, scale, config, encode.gradient, entryRef), legendGradientLabels(spec, config, encode.labels, entryRef)];
+    } // symbol legend
+    else {
+      // determine legend symbol group layout
+      entryLayout = legendSymbolLayout(spec, config);
+      children = [legendSymbolGroups(spec, config, encode, entryRef, deref(entryLayout.columns))]; // pass symbol size information to legend entry generator
+
+      params.size = sizeExpression(spec, scope, children[0].marks);
+    } // generate legend marks
+
+
+    children = [guideGroup({
+      role: LegendEntryRole,
+      from: dataRef,
+      encode: entryEncode,
+      marks: children,
+      layout: entryLayout,
+      interactive
+    })]; // include legend title if defined
+
+    if (datum.title) {
+      children.push(legendTitle(spec, config, encode.title, dataRef));
+    } // parse legend specification
+
+
+    return parseMark(guideGroup({
+      role: LegendRole,
+      from: dataRef,
+      encode: extendEncode(buildLegendEncode(_, spec, config), legendEncode, Skip),
+      marks: children,
+      aria: _('aria'),
+      description: _('description'),
+      zindex: _('zindex'),
+      name,
+      interactive,
+      style
+    }), scope);
+  }
+
+  function legendType(spec, scaleType) {
+    let type = spec.type || Symbols;
+
+    if (!spec.type && scaleCount(spec) === 1 && (spec.fill || spec.stroke)) {
+      type = isContinuous(scaleType) ? Gradient : isDiscretizing(scaleType) ? Discrete : Symbols;
+    }
+
+    return type !== Gradient ? type : isDiscretizing(scaleType) ? Discrete : Gradient;
+  }
+
+  function scaleCount(spec) {
+    return LegendScales.reduce((count, type) => count + (spec[type] ? 1 : 0), 0);
+  }
+
+  function buildLegendEncode(_, spec, config) {
+    const encode = {
+      enter: {},
+      update: {}
+    };
+    addEncoders(encode, {
+      orient: _('orient'),
+      offset: _('offset'),
+      padding: _('padding'),
+      titlePadding: _('titlePadding'),
+      cornerRadius: _('cornerRadius'),
+      fill: _('fillColor'),
+      stroke: _('strokeColor'),
+      strokeWidth: config.strokeWidth,
+      strokeDash: config.strokeDash,
+      x: _('legendX'),
+      y: _('legendY'),
+      // accessibility support
+      format: spec.format,
+      formatType: spec.formatType
+    });
+    return encode;
+  }
+
+  function sizeExpression(spec, scope, marks) {
+    const size = deref(getChannel('size', spec, marks)),
+          strokeWidth = deref(getChannel('strokeWidth', spec, marks)),
+          fontSize = deref(getFontSize(marks[1].encode, scope, GuideLabelStyle));
+    return parser(`max(ceil(sqrt(${size})+${strokeWidth}),${fontSize})`, scope);
+  }
+
+  function getChannel(name, spec, marks) {
+    return spec[name] ? `scale("${spec[name]}",datum)` : getEncoding(name, marks[0].encode);
+  }
+
+  function getFontSize(encode, scope, style) {
+    return getEncoding('fontSize', encode) || getStyle('fontSize', scope, style);
+  }
+
+  const angleExpr = `item.orient==="${Left}"?-90:item.orient==="${Right}"?90:0`;
+
+  function parseTitle(spec, scope) {
+    spec = isString(spec) ? {
+      text: spec
+    } : spec;
+
+    const _ = lookup(spec, scope.config.title),
+          encode = spec.encode || {},
+          userEncode = encode.group || {},
+          name = userEncode.name || undefined,
+          interactive = userEncode.interactive,
+          style = userEncode.style,
+          children = []; // single-element data source for group title
+
+
+    const datum = {},
+          dataRef = ref(scope.add(Collect(null, [datum]))); // include title text
+
+    children.push(buildTitle(spec, _, titleEncode(spec), dataRef)); // include subtitle text
+
+    if (spec.subtitle) {
+      children.push(buildSubTitle(spec, _, encode.subtitle, dataRef));
+    } // parse title specification
+
+
+    return parseMark(guideGroup({
+      role: TitleRole,
+      from: dataRef,
+      encode: groupEncode(_, userEncode),
+      marks: children,
+      aria: _('aria'),
+      description: _('description'),
+      zindex: _('zindex'),
+      name,
+      interactive,
+      style
+    }), scope);
+  } // provide backwards-compatibility for title custom encode;
+  // the top-level encode block has been *deprecated*.
+
+
+  function titleEncode(spec) {
+    const encode = spec.encode;
+    return encode && encode.title || extend$1({
+      name: spec.name,
+      interactive: spec.interactive,
+      style: spec.style
+    }, encode);
+  }
+
+  function groupEncode(_, userEncode) {
+    const encode = {
+      enter: {},
+      update: {}
+    };
+    addEncoders(encode, {
+      orient: _('orient'),
+      anchor: _('anchor'),
+      align: {
+        signal: alignExpr$1
+      },
+      angle: {
+        signal: angleExpr
+      },
+      limit: _('limit'),
+      frame: _('frame'),
+      offset: _('offset') || 0,
+      padding: _('subtitlePadding')
+    });
+    return extendEncode(encode, userEncode, Skip);
+  }
+
+  function buildTitle(spec, _, userEncode, dataRef) {
+    const zero = {
+      value: 0
+    },
+          text = spec.text,
+          encode = {
+      enter: {
+        opacity: zero
+      },
+      update: {
+        opacity: {
+          value: 1
+        }
+      },
+      exit: {
+        opacity: zero
+      }
+    };
+    addEncoders(encode, {
+      text: text,
+      align: {
+        signal: 'item.mark.group.align'
+      },
+      angle: {
+        signal: 'item.mark.group.angle'
+      },
+      limit: {
+        signal: 'item.mark.group.limit'
+      },
+      baseline: 'top',
+      dx: _('dx'),
+      dy: _('dy'),
+      fill: _('color'),
+      font: _('font'),
+      fontSize: _('fontSize'),
+      fontStyle: _('fontStyle'),
+      fontWeight: _('fontWeight'),
+      lineHeight: _('lineHeight')
+    }, {
+      // update
+      align: _('align'),
+      angle: _('angle'),
+      baseline: _('baseline')
+    });
+    return guideMark({
+      type: TextMark,
+      role: TitleTextRole,
+      style: GroupTitleStyle,
+      from: dataRef,
+      encode
+    }, userEncode);
+  }
+
+  function buildSubTitle(spec, _, userEncode, dataRef) {
+    const zero = {
+      value: 0
+    },
+          text = spec.subtitle,
+          encode = {
+      enter: {
+        opacity: zero
+      },
+      update: {
+        opacity: {
+          value: 1
+        }
+      },
+      exit: {
+        opacity: zero
+      }
+    };
+    addEncoders(encode, {
+      text: text,
+      align: {
+        signal: 'item.mark.group.align'
+      },
+      angle: {
+        signal: 'item.mark.group.angle'
+      },
+      limit: {
+        signal: 'item.mark.group.limit'
+      },
+      baseline: 'top',
+      dx: _('dx'),
+      dy: _('dy'),
+      fill: _('subtitleColor'),
+      font: _('subtitleFont'),
+      fontSize: _('subtitleFontSize'),
+      fontStyle: _('subtitleFontStyle'),
+      fontWeight: _('subtitleFontWeight'),
+      lineHeight: _('subtitleLineHeight')
+    }, {
+      // update
+      align: _('align'),
+      angle: _('angle'),
+      baseline: _('baseline')
+    });
+    return guideMark({
+      type: TextMark,
+      role: TitleSubtitleRole,
+      style: GroupSubtitleStyle,
+      from: dataRef,
+      encode
+    }, userEncode);
+  }
+
+  function parseData(data, scope) {
+    const transforms = [];
+
+    if (data.transform) {
+      data.transform.forEach(tx => {
+        transforms.push(parseTransform(tx, scope));
+      });
+    }
+
+    if (data.on) {
+      data.on.forEach(on => {
+        parseTrigger(on, scope, data.name);
+      });
+    }
+
+    scope.addDataPipeline(data.name, analyze(data, scope, transforms));
+  }
+  /**
+   * Analyze a data pipeline, add needed operators.
+   */
+
+
+  function analyze(data, scope, ops) {
+    const output = [];
+    let source = null,
+        modify = false,
+        generate = false,
+        upstream,
+        i,
+        n,
+        t,
+        m;
+
+    if (data.values) {
+      // hard-wired input data set
+      if (isSignal(data.values) || hasSignal(data.format)) {
+        // if either values is signal or format has signal, use dynamic loader
+        output.push(load(scope, data));
+        output.push(source = collect());
+      } else {
+        // otherwise, ingest upon dataflow init
+        output.push(source = collect({
+          $ingest: data.values,
+          $format: data.format
+        }));
+      }
+    } else if (data.url) {
+      // load data from external source
+      if (hasSignal(data.url) || hasSignal(data.format)) {
+        // if either url or format has signal, use dynamic loader
+        output.push(load(scope, data));
+        output.push(source = collect());
+      } else {
+        // otherwise, request load upon dataflow init
+        output.push(source = collect({
+          $request: data.url,
+          $format: data.format
+        }));
+      }
+    } else if (data.source) {
+      // derives from one or more other data sets
+      source = upstream = array$5(data.source).map(d => ref(scope.getData(d).output));
+      output.push(null); // populate later
+    } // scan data transforms, add collectors as needed
+
+
+    for (i = 0, n = ops.length; i < n; ++i) {
+      t = ops[i];
+      m = t.metadata;
+
+      if (!source && !m.source) {
+        output.push(source = collect());
+      }
+
+      output.push(t);
+      if (m.generates) generate = true;
+      if (m.modifies && !generate) modify = true;
+      if (m.source) source = t;else if (m.changes) source = null;
+    }
+
+    if (upstream) {
+      n = upstream.length - 1;
+      output[0] = Relay({
+        derive: modify,
+        pulse: n ? upstream : upstream[0]
+      });
+
+      if (modify || n) {
+        // collect derived and multi-pulse tuples
+        output.splice(1, 0, collect());
+      }
+    }
+
+    if (!source) output.push(collect());
+    output.push(Sieve({}));
+    return output;
+  }
+
+  function collect(values) {
+    const s = Collect({}, values);
+    s.metadata = {
+      source: true
+    };
+    return s;
+  }
+
+  function load(scope, data) {
+    return Load({
+      url: data.url ? scope.property(data.url) : undefined,
+      async: data.async ? scope.property(data.async) : undefined,
+      values: data.values ? scope.property(data.values) : undefined,
+      format: scope.objectProperty(data.format)
+    });
+  }
+
+  const isX = orient => orient === Bottom || orient === Top; // get sign coefficient based on axis orient
+
+
+  const getSign = (orient, a, b) => isSignal(orient) ? ifLeftTopExpr(orient.signal, a, b) : orient === Left || orient === Top ? a : b; // condition on axis x-direction
+
+
+  const ifX = (orient, a, b) => isSignal(orient) ? ifXEnc(orient.signal, a, b) : isX(orient) ? a : b; // condition on axis y-direction
+
+
+  const ifY = (orient, a, b) => isSignal(orient) ? ifYEnc(orient.signal, a, b) : isX(orient) ? b : a;
+
+  const ifTop = (orient, a, b) => isSignal(orient) ? ifTopExpr(orient.signal, a, b) : orient === Top ? {
+    value: a
+  } : {
+    value: b
+  };
+
+  const ifRight = (orient, a, b) => isSignal(orient) ? ifRightExpr(orient.signal, a, b) : orient === Right ? {
+    value: a
+  } : {
+    value: b
+  };
+
+  const ifXEnc = ($orient, a, b) => ifEnc(`${$orient} === '${Top}' || ${$orient} === '${Bottom}'`, a, b);
+
+  const ifYEnc = ($orient, a, b) => ifEnc(`${$orient} !== '${Top}' && ${$orient} !== '${Bottom}'`, a, b);
+
+  const ifLeftTopExpr = ($orient, a, b) => ifExpr(`${$orient} === '${Left}' || ${$orient} === '${Top}'`, a, b);
+
+  const ifTopExpr = ($orient, a, b) => ifExpr(`${$orient} === '${Top}'`, a, b);
+
+  const ifRightExpr = ($orient, a, b) => ifExpr(`${$orient} === '${Right}'`, a, b);
+
+  const ifEnc = (test, a, b) => {
+    // ensure inputs are encoder objects (or null)
+    a = a != null ? encoder(a) : a;
+    b = b != null ? encoder(b) : b;
+
+    if (isSimple(a) && isSimple(b)) {
+      // if possible generate simple signal expression
+      a = a ? a.signal || $(a.value) : null;
+      b = b ? b.signal || $(b.value) : null;
+      return {
+        signal: `${test} ? (${a}) : (${b})`
+      };
+    } else {
+      // otherwise generate rule set
+      return [extend$1({
+        test
+      }, a)].concat(b || []);
+    }
+  };
+
+  const isSimple = enc => enc == null || Object.keys(enc).length === 1;
+
+  const ifExpr = (test, a, b) => ({
+    signal: `${test} ? (${toExpr(a)}) : (${toExpr(b)})`
+  });
+
+  const ifOrient = ($orient, t, b, l, r) => ({
+    signal: (l != null ? `${$orient} === '${Left}' ? (${toExpr(l)}) : ` : '') + (b != null ? `${$orient} === '${Bottom}' ? (${toExpr(b)}) : ` : '') + (r != null ? `${$orient} === '${Right}' ? (${toExpr(r)}) : ` : '') + (t != null ? `${$orient} === '${Top}' ? (${toExpr(t)}) : ` : '') + '(null)'
+  });
+
+  const toExpr = v => isSignal(v) ? v.signal : v == null ? null : $(v);
+
+  const mult = (sign, value) => value === 0 ? 0 : isSignal(sign) ? {
+    signal: `(${sign.signal}) * ${value}`
+  } : {
+    value: sign * value
+  };
+
+  const patch = (value, base) => {
+    const s = value.signal;
+    return s && s.endsWith('(null)') ? {
+      signal: s.slice(0, -6) + base.signal
+    } : value;
+  };
+
+  function fallback(prop, config, axisConfig, style) {
+    let styleProp;
+
+    if (config && has$1(config, prop)) {
+      return config[prop];
+    } else if (has$1(axisConfig, prop)) {
+      return axisConfig[prop];
+    } else if (prop.startsWith('title')) {
+      switch (prop) {
+        case 'titleColor':
+          styleProp = 'fill';
+          break;
+
+        case 'titleFont':
+        case 'titleFontSize':
+        case 'titleFontWeight':
+          styleProp = prop[5].toLowerCase() + prop.slice(6);
+      }
+
+      return style[GuideTitleStyle][styleProp];
+    } else if (prop.startsWith('label')) {
+      switch (prop) {
+        case 'labelColor':
+          styleProp = 'fill';
+          break;
+
+        case 'labelFont':
+        case 'labelFontSize':
+          styleProp = prop[5].toLowerCase() + prop.slice(6);
+      }
+
+      return style[GuideLabelStyle][styleProp];
+    }
+
+    return null;
+  }
+
+  function keys(objects) {
+    const map = {};
+
+    for (const obj of objects) {
+      if (!obj) continue;
+
+      for (const key in obj) map[key] = 1;
+    }
+
+    return Object.keys(map);
+  }
+
+  function axisConfig(spec, scope) {
+    var config = scope.config,
+        style = config.style,
+        axis = config.axis,
+        band = scope.scaleType(spec.scale) === 'band' && config.axisBand,
+        orient = spec.orient,
+        xy,
+        or,
+        key;
+
+    if (isSignal(orient)) {
+      const xyKeys = keys([config.axisX, config.axisY]),
+            orientKeys = keys([config.axisTop, config.axisBottom, config.axisLeft, config.axisRight]);
+      xy = {};
+
+      for (key of xyKeys) {
+        xy[key] = ifX(orient, fallback(key, config.axisX, axis, style), fallback(key, config.axisY, axis, style));
+      }
+
+      or = {};
+
+      for (key of orientKeys) {
+        or[key] = ifOrient(orient.signal, fallback(key, config.axisTop, axis, style), fallback(key, config.axisBottom, axis, style), fallback(key, config.axisLeft, axis, style), fallback(key, config.axisRight, axis, style));
+      }
+    } else {
+      xy = orient === Top || orient === Bottom ? config.axisX : config.axisY;
+      or = config['axis' + orient[0].toUpperCase() + orient.slice(1)];
+    }
+
+    const result = xy || or || band ? extend$1({}, axis, xy, or, band) : axis;
+    return result;
+  }
+
+  function axisDomain(spec, config, userEncode, dataRef) {
+    const _ = lookup(spec, config),
+          orient = spec.orient;
+
+    let enter, update;
+    const encode = {
+      enter: enter = {
+        opacity: zero
+      },
+      update: update = {
+        opacity: one
+      },
+      exit: {
+        opacity: zero
+      }
+    };
+    addEncoders(encode, {
+      stroke: _('domainColor'),
+      strokeCap: _('domainCap'),
+      strokeDash: _('domainDash'),
+      strokeDashOffset: _('domainDashOffset'),
+      strokeWidth: _('domainWidth'),
+      strokeOpacity: _('domainOpacity')
+    });
+    const pos0 = position(spec, 0);
+    const pos1 = position(spec, 1);
+    enter.x = update.x = ifX(orient, pos0, zero);
+    enter.x2 = update.x2 = ifX(orient, pos1);
+    enter.y = update.y = ifY(orient, pos0, zero);
+    enter.y2 = update.y2 = ifY(orient, pos1);
+    return guideMark({
+      type: RuleMark,
+      role: AxisDomainRole,
+      from: dataRef,
+      encode
+    }, userEncode);
+  }
+
+  function position(spec, pos) {
+    return {
+      scale: spec.scale,
+      range: pos
+    };
+  }
+
+  function axisGrid(spec, config, userEncode, dataRef, band) {
+    const _ = lookup(spec, config),
+          orient = spec.orient,
+          vscale = spec.gridScale,
+          sign = getSign(orient, 1, -1),
+          offset = offsetValue(spec.offset, sign);
+
+    let enter, exit, update;
+    const encode = {
+      enter: enter = {
+        opacity: zero
+      },
+      update: update = {
+        opacity: one
+      },
+      exit: exit = {
+        opacity: zero
+      }
+    };
+    addEncoders(encode, {
+      stroke: _('gridColor'),
+      strokeCap: _('gridCap'),
+      strokeDash: _('gridDash'),
+      strokeDashOffset: _('gridDashOffset'),
+      strokeOpacity: _('gridOpacity'),
+      strokeWidth: _('gridWidth')
+    });
+    const tickPos = {
+      scale: spec.scale,
+      field: Value,
+      band: band.band,
+      extra: band.extra,
+      offset: band.offset,
+      round: _('tickRound')
+    };
+    const sz = ifX(orient, {
+      signal: 'height'
+    }, {
+      signal: 'width'
+    });
+    const gridStart = vscale ? {
+      scale: vscale,
+      range: 0,
+      mult: sign,
+      offset: offset
+    } : {
+      value: 0,
+      offset: offset
+    };
+    const gridEnd = vscale ? {
+      scale: vscale,
+      range: 1,
+      mult: sign,
+      offset: offset
+    } : extend$1(sz, {
+      mult: sign,
+      offset: offset
+    });
+    enter.x = update.x = ifX(orient, tickPos, gridStart);
+    enter.y = update.y = ifY(orient, tickPos, gridStart);
+    enter.x2 = update.x2 = ifY(orient, gridEnd);
+    enter.y2 = update.y2 = ifX(orient, gridEnd);
+    exit.x = ifX(orient, tickPos);
+    exit.y = ifY(orient, tickPos);
+    return guideMark({
+      type: RuleMark,
+      role: AxisGridRole,
+      key: Value,
+      from: dataRef,
+      encode
+    }, userEncode);
+  }
+
+  function offsetValue(offset, sign) {
+    if (sign === 1) ;else if (!isObject(offset)) {
+      offset = isSignal(sign) ? {
+        signal: `(${sign.signal}) * (${offset || 0})`
+      } : sign * (offset || 0);
+    } else {
+      let entry = offset = extend$1({}, offset);
+
+      while (entry.mult != null) {
+        if (!isObject(entry.mult)) {
+          entry.mult = isSignal(sign) // no offset if sign === 1
+          ? {
+            signal: `(${entry.mult}) * (${sign.signal})`
+          } : entry.mult * sign;
+          return offset;
+        } else {
+          entry = entry.mult = extend$1({}, entry.mult);
+        }
+      }
+
+      entry.mult = sign;
+    }
+    return offset;
+  }
+
+  function axisTicks(spec, config, userEncode, dataRef, size, band) {
+    const _ = lookup(spec, config),
+          orient = spec.orient,
+          sign = getSign(orient, -1, 1);
+
+    let enter, exit, update;
+    const encode = {
+      enter: enter = {
+        opacity: zero
+      },
+      update: update = {
+        opacity: one
+      },
+      exit: exit = {
+        opacity: zero
+      }
+    };
+    addEncoders(encode, {
+      stroke: _('tickColor'),
+      strokeCap: _('tickCap'),
+      strokeDash: _('tickDash'),
+      strokeDashOffset: _('tickDashOffset'),
+      strokeOpacity: _('tickOpacity'),
+      strokeWidth: _('tickWidth')
+    });
+    const tickSize = encoder(size);
+    tickSize.mult = sign;
+    const tickPos = {
+      scale: spec.scale,
+      field: Value,
+      band: band.band,
+      extra: band.extra,
+      offset: band.offset,
+      round: _('tickRound')
+    };
+    update.y = enter.y = ifX(orient, zero, tickPos);
+    update.y2 = enter.y2 = ifX(orient, tickSize);
+    exit.x = ifX(orient, tickPos);
+    update.x = enter.x = ifY(orient, zero, tickPos);
+    update.x2 = enter.x2 = ifY(orient, tickSize);
+    exit.y = ifY(orient, tickPos);
+    return guideMark({
+      type: RuleMark,
+      role: AxisTickRole,
+      key: Value,
+      from: dataRef,
+      encode
+    }, userEncode);
+  }
+
+  function flushExpr(scale, threshold, a, b, c) {
+    return {
+      signal: 'flush(range("' + scale + '"), ' + 'scale("' + scale + '", datum.value), ' + threshold + ',' + a + ',' + b + ',' + c + ')'
+    };
+  }
+
+  function axisLabels(spec, config, userEncode, dataRef, size, band) {
+    const _ = lookup(spec, config),
+          orient = spec.orient,
+          scale = spec.scale,
+          sign = getSign(orient, -1, 1),
+          flush = deref(_('labelFlush')),
+          flushOffset = deref(_('labelFlushOffset')),
+          labelAlign = _('labelAlign'),
+          labelBaseline = _('labelBaseline');
+
+    let flushOn = flush === 0 || !!flush,
+        update;
+    const tickSize = encoder(size);
+    tickSize.mult = sign;
+    tickSize.offset = encoder(_('labelPadding') || 0);
+    tickSize.offset.mult = sign;
+    const tickPos = {
+      scale: scale,
+      field: Value,
+      band: 0.5,
+      offset: extendOffset(band.offset, _('labelOffset'))
+    };
+    const align = ifX(orient, flushOn ? flushExpr(scale, flush, '"left"', '"right"', '"center"') : {
+      value: 'center'
+    }, ifRight(orient, 'left', 'right'));
+    const baseline = ifX(orient, ifTop(orient, 'bottom', 'top'), flushOn ? flushExpr(scale, flush, '"top"', '"bottom"', '"middle"') : {
+      value: 'middle'
+    });
+    const offsetExpr = flushExpr(scale, flush, `-(${flushOffset})`, flushOffset, 0);
+    flushOn = flushOn && flushOffset;
+    const enter = {
+      opacity: zero,
+      x: ifX(orient, tickPos, tickSize),
+      y: ifY(orient, tickPos, tickSize)
+    };
+    const encode = {
+      enter: enter,
+      update: update = {
+        opacity: one,
+        text: {
+          field: Label
+        },
+        x: enter.x,
+        y: enter.y,
+        align,
+        baseline
+      },
+      exit: {
+        opacity: zero,
+        x: enter.x,
+        y: enter.y
+      }
+    };
+    addEncoders(encode, {
+      dx: !labelAlign && flushOn ? ifX(orient, offsetExpr) : null,
+      dy: !labelBaseline && flushOn ? ifY(orient, offsetExpr) : null
+    });
+    addEncoders(encode, {
+      angle: _('labelAngle'),
+      fill: _('labelColor'),
+      fillOpacity: _('labelOpacity'),
+      font: _('labelFont'),
+      fontSize: _('labelFontSize'),
+      fontWeight: _('labelFontWeight'),
+      fontStyle: _('labelFontStyle'),
+      limit: _('labelLimit'),
+      lineHeight: _('labelLineHeight')
+    }, {
+      align: labelAlign,
+      baseline: labelBaseline
+    });
+
+    const bound = _('labelBound');
+
+    let overlap = _('labelOverlap'); // if overlap method or bound defined, request label overlap removal
+
+
+    overlap = overlap || bound ? {
+      separation: _('labelSeparation'),
+      method: overlap,
+      order: 'datum.index',
+      bound: bound ? {
+        scale,
+        orient,
+        tolerance: bound
+      } : null
+    } : undefined;
+
+    if (update.align !== align) {
+      update.align = patch(update.align, align);
+    }
+
+    if (update.baseline !== baseline) {
+      update.baseline = patch(update.baseline, baseline);
+    }
+
+    return guideMark({
+      type: TextMark,
+      role: AxisLabelRole,
+      style: GuideLabelStyle,
+      key: Value,
+      from: dataRef,
+      encode,
+      overlap
+    }, userEncode);
+  }
+
+  function axisTitle(spec, config, userEncode, dataRef) {
+    const _ = lookup(spec, config),
+          orient = spec.orient,
+          sign = getSign(orient, -1, 1);
+
+    let enter, update;
+    const encode = {
+      enter: enter = {
+        opacity: zero,
+        anchor: encoder(_('titleAnchor', null)),
+        align: {
+          signal: alignExpr$1
+        }
+      },
+      update: update = extend$1({}, enter, {
+        opacity: one,
+        text: encoder(spec.title)
+      }),
+      exit: {
+        opacity: zero
+      }
+    };
+    const titlePos = {
+      signal: `lerp(range("${spec.scale}"), ${anchorExpr(0, 1, 0.5)})`
+    };
+    update.x = ifX(orient, titlePos);
+    update.y = ifY(orient, titlePos);
+    enter.angle = ifX(orient, zero, mult(sign, 90));
+    enter.baseline = ifX(orient, ifTop(orient, Bottom, Top), {
+      value: Bottom
+    });
+    update.angle = enter.angle;
+    update.baseline = enter.baseline;
+    addEncoders(encode, {
+      fill: _('titleColor'),
+      fillOpacity: _('titleOpacity'),
+      font: _('titleFont'),
+      fontSize: _('titleFontSize'),
+      fontStyle: _('titleFontStyle'),
+      fontWeight: _('titleFontWeight'),
+      limit: _('titleLimit'),
+      lineHeight: _('titleLineHeight')
+    }, {
+      // require update
+      align: _('titleAlign'),
+      angle: _('titleAngle'),
+      baseline: _('titleBaseline')
+    });
+    autoLayout(_, orient, encode, userEncode);
+    encode.update.align = patch(encode.update.align, enter.align);
+    encode.update.angle = patch(encode.update.angle, enter.angle);
+    encode.update.baseline = patch(encode.update.baseline, enter.baseline);
+    return guideMark({
+      type: TextMark,
+      role: AxisTitleRole,
+      style: GuideTitleStyle,
+      from: dataRef,
+      encode
+    }, userEncode);
+  }
+
+  function autoLayout(_, orient, encode, userEncode) {
+    const auto = (value, dim) => value != null ? (encode.update[dim] = patch(encoder(value), encode.update[dim]), false) : !has(dim, userEncode) ? true : false;
+
+    const autoY = auto(_('titleX'), 'x'),
+          autoX = auto(_('titleY'), 'y');
+    encode.enter.auto = autoX === autoY ? encoder(autoX) : ifX(orient, encoder(autoX), encoder(autoY));
+  }
+
+  function parseAxis(spec, scope) {
+    const config = axisConfig(spec, scope),
+          encode = spec.encode || {},
+          axisEncode = encode.axis || {},
+          name = axisEncode.name || undefined,
+          interactive = axisEncode.interactive,
+          style = axisEncode.style,
+          _ = lookup(spec, config),
+          band = tickBand(_); // single-element data source for axis group
+
+
+    const datum = {
+      scale: spec.scale,
+      ticks: !!_('ticks'),
+      labels: !!_('labels'),
+      grid: !!_('grid'),
+      domain: !!_('domain'),
+      title: spec.title != null
+    };
+    const dataRef = ref(scope.add(Collect({}, [datum]))); // data source for axis ticks
+
+    const ticksRef = ref(scope.add(AxisTicks({
+      scale: scope.scaleRef(spec.scale),
+      extra: scope.property(band.extra),
+      count: scope.objectProperty(spec.tickCount),
+      values: scope.objectProperty(spec.values),
+      minstep: scope.property(spec.tickMinStep),
+      formatType: scope.property(spec.formatType),
+      formatSpecifier: scope.property(spec.format)
+    }))); // generate axis marks
+
+    const children = [];
+    let size; // include axis gridlines if requested
+
+    if (datum.grid) {
+      children.push(axisGrid(spec, config, encode.grid, ticksRef, band));
+    } // include axis ticks if requested
+
+
+    if (datum.ticks) {
+      size = _('tickSize');
+      children.push(axisTicks(spec, config, encode.ticks, ticksRef, size, band));
+    } // include axis labels if requested
+
+
+    if (datum.labels) {
+      size = datum.ticks ? size : 0;
+      children.push(axisLabels(spec, config, encode.labels, ticksRef, size, band));
+    } // include axis domain path if requested
+
+
+    if (datum.domain) {
+      children.push(axisDomain(spec, config, encode.domain, dataRef));
+    } // include axis title if defined
+
+
+    if (datum.title) {
+      children.push(axisTitle(spec, config, encode.title, dataRef));
+    } // parse axis specification
+
+
+    return parseMark(guideGroup({
+      role: AxisRole,
+      from: dataRef,
+      encode: extendEncode(buildAxisEncode(_, spec), axisEncode, Skip),
+      marks: children,
+      aria: _('aria'),
+      description: _('description'),
+      zindex: _('zindex'),
+      name,
+      interactive,
+      style
+    }), scope);
+  }
+
+  function buildAxisEncode(_, spec) {
+    const encode = {
+      enter: {},
+      update: {}
+    };
+    addEncoders(encode, {
+      orient: _('orient'),
+      offset: _('offset') || 0,
+      position: value(spec.position, 0),
+      titlePadding: _('titlePadding'),
+      minExtent: _('minExtent'),
+      maxExtent: _('maxExtent'),
+      range: {
+        signal: `abs(span(range("${spec.scale}")))`
+      },
+      translate: _('translate'),
+      // accessibility support
+      format: spec.format,
+      formatType: spec.formatType
+    });
+    return encode;
+  }
+
+  function parseScope(spec, scope, preprocessed) {
+    const signals = array$5(spec.signals),
+          scales = array$5(spec.scales); // parse signal definitions, if not already preprocessed
+
+    if (!preprocessed) signals.forEach(_ => parseSignal(_, scope)); // parse cartographic projection definitions
+
+    array$5(spec.projections).forEach(_ => parseProjection(_, scope)); // initialize scale references
+
+    scales.forEach(_ => initScale(_, scope)); // parse data sources
+
+    array$5(spec.data).forEach(_ => parseData(_, scope)); // parse scale definitions
+
+    scales.forEach(_ => parseScale(_, scope)); // parse signal updates
+
+    (preprocessed || signals).forEach(_ => parseSignalUpdates(_, scope)); // parse axis definitions
+
+    array$5(spec.axes).forEach(_ => parseAxis(_, scope)); // parse mark definitions
+
+    array$5(spec.marks).forEach(_ => parseMark(_, scope)); // parse legend definitions
+
+    array$5(spec.legends).forEach(_ => parseLegend(_, scope)); // parse title, if defined
+
+    if (spec.title) parseTitle(spec.title, scope); // parse collected lambda (anonymous) expressions
+
+    scope.parseLambdas();
+    return scope;
+  }
+
+  const rootEncode = spec => extendEncode({
+    enter: {
+      x: {
+        value: 0
+      },
+      y: {
+        value: 0
+      }
+    },
+    update: {
+      width: {
+        signal: 'width'
+      },
+      height: {
+        signal: 'height'
+      }
+    }
+  }, spec);
+
+  function parseView(spec, scope) {
+    const config = scope.config; // add scenegraph root
+
+    const root = ref(scope.root = scope.add(operator())); // parse top-level signal definitions
+
+    const signals = collectSignals(spec, config);
+    signals.forEach(_ => parseSignal(_, scope)); // assign description, event, legend, and locale configuration
+
+    scope.description = spec.description || config.description;
+    scope.eventConfig = config.events;
+    scope.legends = scope.objectProperty(config.legend && config.legend.layout);
+    scope.locale = config.locale; // store root group item
+
+    const input = scope.add(Collect()); // encode root group item
+
+    const encode = scope.add(Encode(parseEncode(rootEncode(spec.encode), GroupMark, FrameRole, spec.style, scope, {
+      pulse: ref(input)
+    }))); // perform view layout
+
+    const parent = scope.add(ViewLayout({
+      layout: scope.objectProperty(spec.layout),
+      legends: scope.legends,
+      autosize: scope.signalRef('autosize'),
+      mark: root,
+      pulse: ref(encode)
+    }));
+    scope.operators.pop(); // parse remainder of specification
+
+    scope.pushState(ref(encode), ref(parent), null);
+    parseScope(spec, scope, signals);
+    scope.operators.push(parent); // bound / render / sieve root item
+
+    let op = scope.add(Bound({
+      mark: root,
+      pulse: ref(parent)
+    }));
+    op = scope.add(Render({
+      pulse: ref(op)
+    }));
+    op = scope.add(Sieve({
+      pulse: ref(op)
+    })); // track metadata for root item
+
+    scope.addData('root', new DataScope(scope, input, input, op));
+    return scope;
+  }
+
+  function signalObject(name, value) {
+    return value && value.signal ? {
+      name,
+      update: value.signal
+    } : {
+      name,
+      value
+    };
+  }
+  /**
+   * Collect top-level signals, merging values as needed. Signals
+   * defined in the config signals arrays are added only if that
+   * signal is not explicitly defined in the specification.
+   * Built-in signals (autosize, background, padding, width, height)
+   * receive special treatment. They are initialized using the
+   * top-level spec property, or, if undefined in the spec, using
+   * the corresponding top-level config property. If this property
+   * is a signal reference object, the signal expression maps to the
+   * signal 'update' property. If the spec's top-level signal array
+   * contains an entry that matches a built-in signal, that entry
+   * will be merged with the built-in specification, potentially
+   * overwriting existing 'value' or 'update' properties.
+   */
+
+
+  function collectSignals(spec, config) {
+    const _ = name => value(spec[name], config[name]),
+          signals = [signalObject('background', _('background')), signalObject('autosize', parseAutosize(_('autosize'))), signalObject('padding', parsePadding(_('padding'))), signalObject('width', _('width') || 0), signalObject('height', _('height') || 0)],
+          pre = signals.reduce((p, s) => (p[s.name] = s, p), {}),
+          map = {}; // add spec signal array
+
+
+    array$5(spec.signals).forEach(s => {
+      if (has$1(pre, s.name)) {
+        // merge if built-in signal
+        s = extend$1(pre[s.name], s);
+      } else {
+        // otherwise add to signal list
+        signals.push(s);
+      }
+
+      map[s.name] = s;
+    }); // add config signal array
+
+    array$5(config.signals).forEach(s => {
+      if (!has$1(map, s.name) && !has$1(pre, s.name)) {
+        // add to signal list if not already defined
+        signals.push(s);
+      }
+    });
+    return signals;
+  }
+
+  function Scope(config, options) {
+    this.config = config || {};
+    this.options = options || {};
+    this.bindings = [];
+    this.field = {};
+    this.signals = {};
+    this.lambdas = {};
+    this.scales = {};
+    this.events = {};
+    this.data = {};
+    this.streams = [];
+    this.updates = [];
+    this.operators = [];
+    this.eventConfig = null;
+    this.locale = null;
+    this._id = 0;
+    this._subid = 0;
+    this._nextsub = [0];
+    this._parent = [];
+    this._encode = [];
+    this._lookup = [];
+    this._markpath = [];
+  }
+
+  function Subscope(scope) {
+    this.config = scope.config;
+    this.options = scope.options;
+    this.legends = scope.legends;
+    this.field = Object.create(scope.field);
+    this.signals = Object.create(scope.signals);
+    this.lambdas = Object.create(scope.lambdas);
+    this.scales = Object.create(scope.scales);
+    this.events = Object.create(scope.events);
+    this.data = Object.create(scope.data);
+    this.streams = [];
+    this.updates = [];
+    this.operators = [];
+    this._id = 0;
+    this._subid = ++scope._nextsub[0];
+    this._nextsub = scope._nextsub;
+    this._parent = scope._parent.slice();
+    this._encode = scope._encode.slice();
+    this._lookup = scope._lookup.slice();
+    this._markpath = scope._markpath;
+  }
+
+  Scope.prototype = Subscope.prototype = {
+    parse(spec) {
+      return parseScope(spec, this);
+    },
+
+    fork() {
+      return new Subscope(this);
+    },
+
+    isSubscope() {
+      return this._subid > 0;
+    },
+
+    toRuntime() {
+      this.finish();
+      return {
+        description: this.description,
+        operators: this.operators,
+        streams: this.streams,
+        updates: this.updates,
+        bindings: this.bindings,
+        eventConfig: this.eventConfig,
+        locale: this.locale
+      };
+    },
+
+    id() {
+      return (this._subid ? this._subid + ':' : 0) + this._id++;
+    },
+
+    add(op) {
+      this.operators.push(op);
+      op.id = this.id(); // if pre-registration references exist, resolve them now
+
+      if (op.refs) {
+        op.refs.forEach(ref => {
+          ref.$ref = op.id;
+        });
+        op.refs = null;
+      }
+
+      return op;
+    },
+
+    proxy(op) {
+      const vref = op instanceof Entry ? ref(op) : op;
+      return this.add(Proxy({
+        value: vref
+      }));
+    },
+
+    addStream(stream) {
+      this.streams.push(stream);
+      stream.id = this.id();
+      return stream;
+    },
+
+    addUpdate(update) {
+      this.updates.push(update);
+      return update;
+    },
+
+    // Apply metadata
+    finish() {
+      let name, ds; // annotate root
+
+      if (this.root) this.root.root = true; // annotate signals
+
+      for (name in this.signals) {
+        this.signals[name].signal = name;
+      } // annotate scales
+
+
+      for (name in this.scales) {
+        this.scales[name].scale = name;
+      } // annotate data sets
+
+
+      function annotate(op, name, type) {
+        let data, list;
+
+        if (op) {
+          data = op.data || (op.data = {});
+          list = data[name] || (data[name] = []);
+          list.push(type);
+        }
+      }
+
+      for (name in this.data) {
+        ds = this.data[name];
+        annotate(ds.input, name, 'input');
+        annotate(ds.output, name, 'output');
+        annotate(ds.values, name, 'values');
+
+        for (const field in ds.index) {
+          annotate(ds.index[field], name, 'index:' + field);
+        }
+      }
+
+      return this;
+    },
+
+    // ----
+    pushState(encode, parent, lookup) {
+      this._encode.push(ref(this.add(Sieve({
+        pulse: encode
+      }))));
+
+      this._parent.push(parent);
+
+      this._lookup.push(lookup ? ref(this.proxy(lookup)) : null);
+
+      this._markpath.push(-1);
+    },
+
+    popState() {
+      this._encode.pop();
+
+      this._parent.pop();
+
+      this._lookup.pop();
+
+      this._markpath.pop();
+    },
+
+    parent() {
+      return peek$1(this._parent);
+    },
+
+    encode() {
+      return peek$1(this._encode);
+    },
+
+    lookup() {
+      return peek$1(this._lookup);
+    },
+
+    markpath() {
+      const p = this._markpath;
+      return ++p[p.length - 1];
+    },
+
+    // ----
+    fieldRef(field, name) {
+      if (isString(field)) return fieldRef$1(field, name);
+
+      if (!field.signal) {
+        error('Unsupported field reference: ' + $(field));
+      }
+
+      const s = field.signal;
+      let f = this.field[s];
+
+      if (!f) {
+        const params = {
+          name: this.signalRef(s)
+        };
+        if (name) params.as = name;
+        this.field[s] = f = ref(this.add(Field(params)));
+      }
+
+      return f;
+    },
+
+    compareRef(cmp) {
+      let signal = false;
+
+      const check = _ => isSignal(_) ? (signal = true, this.signalRef(_.signal)) : isExpr$1(_) ? (signal = true, this.exprRef(_.expr)) : _;
+
+      const fields = array$5(cmp.field).map(check),
+            orders = array$5(cmp.order).map(check);
+      return signal ? ref(this.add(Compare({
+        fields: fields,
+        orders: orders
+      }))) : compareRef(fields, orders);
+    },
+
+    keyRef(fields, flat) {
+      let signal = false;
+
+      const check = _ => isSignal(_) ? (signal = true, ref(sig[_.signal])) : _;
+
+      const sig = this.signals;
+      fields = array$5(fields).map(check);
+      return signal ? ref(this.add(Key({
+        fields: fields,
+        flat: flat
+      }))) : keyRef(fields, flat);
+    },
+
+    sortRef(sort) {
+      if (!sort) return sort; // including id ensures stable sorting
+
+      const a = aggrField(sort.op, sort.field),
+            o = sort.order || Ascending;
+      return o.signal ? ref(this.add(Compare({
+        fields: a,
+        orders: this.signalRef(o.signal)
+      }))) : compareRef(a, o);
+    },
+
+    // ----
+    event(source, type) {
+      const key = source + ':' + type;
+
+      if (!this.events[key]) {
+        const id = this.id();
+        this.streams.push({
+          id: id,
+          source: source,
+          type: type
+        });
+        this.events[key] = id;
+      }
+
+      return this.events[key];
+    },
+
+    // ----
+    hasOwnSignal(name) {
+      return has$1(this.signals, name);
+    },
+
+    addSignal(name, value) {
+      if (this.hasOwnSignal(name)) {
+        error('Duplicate signal name: ' + $(name));
+      }
+
+      const op = value instanceof Entry ? value : this.add(operator(value));
+      return this.signals[name] = op;
+    },
+
+    getSignal(name) {
+      if (!this.signals[name]) {
+        error('Unrecognized signal name: ' + $(name));
+      }
+
+      return this.signals[name];
+    },
+
+    signalRef(s) {
+      if (this.signals[s]) {
+        return ref(this.signals[s]);
+      } else if (!has$1(this.lambdas, s)) {
+        this.lambdas[s] = this.add(operator(null));
+      }
+
+      return ref(this.lambdas[s]);
+    },
+
+    parseLambdas() {
+      const code = Object.keys(this.lambdas);
+
+      for (let i = 0, n = code.length; i < n; ++i) {
+        const s = code[i],
+              e = parser(s, this),
+              op = this.lambdas[s];
+        op.params = e.$params;
+        op.update = e.$expr;
+      }
+    },
+
+    property(spec) {
+      return spec && spec.signal ? this.signalRef(spec.signal) : spec;
+    },
+
+    objectProperty(spec) {
+      return !spec || !isObject(spec) ? spec : this.signalRef(spec.signal || propertyLambda(spec));
+    },
+
+    exprRef(code, name) {
+      const params = {
+        expr: parser(code, this)
+      };
+      if (name) params.expr.$name = name;
+      return ref(this.add(Expression(params)));
+    },
+
+    addBinding(name, bind) {
+      if (!this.bindings) {
+        error('Nested signals do not support binding: ' + $(name));
+      }
+
+      this.bindings.push(extend$1({
+        signal: name
+      }, bind));
+    },
+
+    // ----
+    addScaleProj(name, transform) {
+      if (has$1(this.scales, name)) {
+        error('Duplicate scale or projection name: ' + $(name));
+      }
+
+      this.scales[name] = this.add(transform);
+    },
+
+    addScale(name, params) {
+      this.addScaleProj(name, Scale(params));
+    },
+
+    addProjection(name, params) {
+      this.addScaleProj(name, Projection(params));
+    },
+
+    getScale(name) {
+      if (!this.scales[name]) {
+        error('Unrecognized scale name: ' + $(name));
+      }
+
+      return this.scales[name];
+    },
+
+    scaleRef(name) {
+      return ref(this.getScale(name));
+    },
+
+    scaleType(name) {
+      return this.getScale(name).params.type;
+    },
+
+    projectionRef(name) {
+      return this.scaleRef(name);
+    },
+
+    projectionType(name) {
+      return this.scaleType(name);
+    },
+
+    // ----
+    addData(name, dataScope) {
+      if (has$1(this.data, name)) {
+        error('Duplicate data set name: ' + $(name));
+      }
+
+      return this.data[name] = dataScope;
+    },
+
+    getData(name) {
+      if (!this.data[name]) {
+        error('Undefined data set name: ' + $(name));
+      }
+
+      return this.data[name];
+    },
+
+    addDataPipeline(name, entries) {
+      if (has$1(this.data, name)) {
+        error('Duplicate data set name: ' + $(name));
+      }
+
+      return this.addData(name, DataScope.fromEntries(this, entries));
+    }
+
+  };
+
+  function propertyLambda(spec) {
+    return (isArray(spec) ? arrayLambda : objectLambda)(spec);
+  }
+
+  function arrayLambda(array) {
+    const n = array.length;
+    let code = '[';
+
+    for (let i = 0; i < n; ++i) {
+      const value = array[i];
+      code += (i > 0 ? ',' : '') + (isObject(value) ? value.signal || propertyLambda(value) : $(value));
+    }
+
+    return code + ']';
+  }
+
+  function objectLambda(obj) {
+    let code = '{',
+        i = 0,
+        key,
+        value;
+
+    for (key in obj) {
+      value = obj[key];
+      code += (++i > 1 ? ',' : '') + $(key) + ':' + (isObject(value) ? value.signal || propertyLambda(value) : $(value));
+    }
+
+    return code + '}';
+  }
+  /**
+   * Standard configuration defaults for Vega specification parsing.
+   * Users can provide their own (sub-)set of these default values
+   * by passing in a config object to the top-level parse method.
+   */
+
+
+  function defaults() {
+    const defaultFont = 'sans-serif',
+          defaultSymbolSize = 30,
+          defaultStrokeWidth = 2,
+          defaultColor = '#4c78a8',
+          black = '#000',
+          gray = '#888',
+          lightGray = '#ddd';
+    return {
+      // default visualization description
+      description: 'Vega visualization',
+      // default padding around visualization
+      padding: 0,
+      // default for automatic sizing; options: 'none', 'pad', 'fit'
+      // or provide an object (e.g., {'type': 'pad', 'resize': true})
+      autosize: 'pad',
+      // default view background color
+      // covers the entire view component
+      background: null,
+      // default event handling configuration
+      // preventDefault for view-sourced event types except 'wheel'
+      events: {
+        defaults: {
+          allow: ['wheel']
+        }
+      },
+      // defaults for top-level group marks
+      // accepts mark properties (fill, stroke, etc)
+      // covers the data rectangle within group width/height
+      group: null,
+      // defaults for basic mark types
+      // each subset accepts mark properties (fill, stroke, etc)
+      mark: null,
+      arc: {
+        fill: defaultColor
+      },
+      area: {
+        fill: defaultColor
+      },
+      image: null,
+      line: {
+        stroke: defaultColor,
+        strokeWidth: defaultStrokeWidth
+      },
+      path: {
+        stroke: defaultColor
+      },
+      rect: {
+        fill: defaultColor
+      },
+      rule: {
+        stroke: black
+      },
+      shape: {
+        stroke: defaultColor
+      },
+      symbol: {
+        fill: defaultColor,
+        size: 64
+      },
+      text: {
+        fill: black,
+        font: defaultFont,
+        fontSize: 11
+      },
+      trail: {
+        fill: defaultColor,
+        size: defaultStrokeWidth
+      },
+      // style definitions
+      style: {
+        // axis & legend labels
+        'guide-label': {
+          fill: black,
+          font: defaultFont,
+          fontSize: 10
+        },
+        // axis & legend titles
+        'guide-title': {
+          fill: black,
+          font: defaultFont,
+          fontSize: 11,
+          fontWeight: 'bold'
+        },
+        // headers, including chart title
+        'group-title': {
+          fill: black,
+          font: defaultFont,
+          fontSize: 13,
+          fontWeight: 'bold'
+        },
+        // chart subtitle
+        'group-subtitle': {
+          fill: black,
+          font: defaultFont,
+          fontSize: 12
+        },
+        // defaults for styled point marks in Vega-Lite
+        point: {
+          size: defaultSymbolSize,
+          strokeWidth: defaultStrokeWidth,
+          shape: 'circle'
+        },
+        circle: {
+          size: defaultSymbolSize,
+          strokeWidth: defaultStrokeWidth
+        },
+        square: {
+          size: defaultSymbolSize,
+          strokeWidth: defaultStrokeWidth,
+          shape: 'square'
+        },
+        // defaults for styled group marks in Vega-Lite
+        cell: {
+          fill: 'transparent',
+          stroke: lightGray
+        }
+      },
+      // defaults for title
+      title: {
+        orient: 'top',
+        anchor: 'middle',
+        offset: 4,
+        subtitlePadding: 3
+      },
+      // defaults for axes
+      axis: {
+        minExtent: 0,
+        maxExtent: 200,
+        bandPosition: 0.5,
+        domain: true,
+        domainWidth: 1,
+        domainColor: gray,
+        grid: false,
+        gridWidth: 1,
+        gridColor: lightGray,
+        labels: true,
+        labelAngle: 0,
+        labelLimit: 180,
+        labelOffset: 0,
+        labelPadding: 2,
+        ticks: true,
+        tickColor: gray,
+        tickOffset: 0,
+        tickRound: true,
+        tickSize: 5,
+        tickWidth: 1,
+        titlePadding: 4
+      },
+      // correction for centering bias
+      axisBand: {
+        tickOffset: -0.5
+      },
+      // defaults for cartographic projection
+      projection: {
+        type: 'mercator'
+      },
+      // defaults for legends
+      legend: {
+        orient: 'right',
+        padding: 0,
+        gridAlign: 'each',
+        columnPadding: 10,
+        rowPadding: 2,
+        symbolDirection: 'vertical',
+        gradientDirection: 'vertical',
+        gradientLength: 200,
+        gradientThickness: 16,
+        gradientStrokeColor: lightGray,
+        gradientStrokeWidth: 0,
+        gradientLabelOffset: 2,
+        labelAlign: 'left',
+        labelBaseline: 'middle',
+        labelLimit: 160,
+        labelOffset: 4,
+        labelOverlap: true,
+        symbolLimit: 30,
+        symbolType: 'circle',
+        symbolSize: 100,
+        symbolOffset: 0,
+        symbolStrokeWidth: 1.5,
+        symbolBaseFillColor: 'transparent',
+        symbolBaseStrokeColor: gray,
+        titleLimit: 180,
+        titleOrient: 'top',
+        titlePadding: 5,
+        layout: {
+          offset: 18,
+          direction: 'horizontal',
+          left: {
+            direction: 'vertical'
+          },
+          right: {
+            direction: 'vertical'
+          }
+        }
+      },
+      // defaults for scale ranges
+      range: {
+        category: {
+          scheme: 'tableau10'
+        },
+        ordinal: {
+          scheme: 'blues'
+        },
+        heatmap: {
+          scheme: 'yellowgreenblue'
+        },
+        ramp: {
+          scheme: 'blues'
+        },
+        diverging: {
+          scheme: 'blueorange',
+          extent: [1, 0]
+        },
+        symbol: ['circle', 'square', 'triangle-up', 'cross', 'diamond', 'triangle-right', 'triangle-down', 'triangle-left']
+      }
+    };
+  }
+
+  function parse(spec, config, options) {
+    if (!isObject(spec)) {
+      error('Input Vega specification must be an object.');
+    }
+
+    config = mergeConfig(defaults(), config, spec.config);
+    return parseView(spec, new Scope(config, options)).toRuntime();
+  }
+
+  // -- Transforms -----
+  extend$1(transforms, tx, vtx, encode$1, geo, force, label, tree, reg, voronoi, wordcloud, xf); // -- Exports -----
+
+  const version = pkg.version;
+
+  exports.Bounds = Bounds;
+  exports.CanvasHandler = CanvasHandler;
+  exports.CanvasRenderer = CanvasRenderer;
+  exports.DATE = DATE;
+  exports.DAY = DAY;
+  exports.DAYOFYEAR = DAYOFYEAR;
+  exports.Dataflow = Dataflow;
+  exports.Debug = Debug;
+  exports.Error = Error$1;
+  exports.EventStream = EventStream;
+  exports.Gradient = Gradient$1;
+  exports.GroupItem = GroupItem;
+  exports.HOURS = HOURS;
+  exports.Handler = Handler;
+  exports.Info = Info;
+  exports.Item = Item;
+  exports.MILLISECONDS = MILLISECONDS;
+  exports.MINUTES = MINUTES;
+  exports.MONTH = MONTH;
+  exports.Marks = Marks;
+  exports.MultiPulse = MultiPulse;
+  exports.None = None$2;
+  exports.Operator = Operator;
+  exports.Parameters = Parameters;
+  exports.Pulse = Pulse;
+  exports.QUARTER = QUARTER;
+  exports.RenderType = RenderType;
+  exports.Renderer = Renderer;
+  exports.ResourceLoader = ResourceLoader;
+  exports.SECONDS = SECONDS;
+  exports.SVGHandler = SVGHandler;
+  exports.SVGRenderer = SVGRenderer;
+  exports.SVGStringRenderer = SVGStringRenderer;
+  exports.Scenegraph = Scenegraph;
+  exports.TIME_UNITS = TIME_UNITS;
+  exports.Transform = Transform;
+  exports.View = View$1;
+  exports.WEEK = WEEK;
+  exports.Warn = Warn;
+  exports.YEAR = YEAR;
+  exports.accessor = accessor;
+  exports.accessorFields = accessorFields;
+  exports.accessorName = accessorName;
+  exports.array = array$5;
+  exports.ascending = ascending$3;
+  exports.bandwidthNRD = estimateBandwidth;
+  exports.bin = bin;
+  exports.bootstrapCI = bootstrapCI;
+  exports.boundClip = boundClip;
+  exports.boundContext = boundContext;
+  exports.boundItem = boundItem$1;
+  exports.boundMark = boundMark;
+  exports.boundStroke = boundStroke;
+  exports.changeset = changeset;
+  exports.clampRange = clampRange;
+  exports.codegenExpression = codegen;
+  exports.compare = compare$1;
+  exports.constant = constant$4;
+  exports.cumulativeLogNormal = cumulativeLogNormal;
+  exports.cumulativeNormal = cumulativeNormal;
+  exports.cumulativeUniform = cumulativeUniform;
+  exports.dayofyear = dayofyear;
+  exports.debounce = debounce;
+  exports.defaultLocale = defaultLocale;
+  exports.definition = definition$1;
+  exports.densityLogNormal = densityLogNormal;
+  exports.densityNormal = densityNormal;
+  exports.densityUniform = densityUniform;
+  exports.domChild = domChild;
+  exports.domClear = domClear;
+  exports.domCreate = domCreate;
+  exports.domFind = domFind;
+  exports.dotbin = dotbin;
+  exports.error = error;
+  exports.expressionFunction = expressionFunction;
+  exports.extend = extend$1;
+  exports.extent = extent;
+  exports.extentIndex = extentIndex;
+  exports.falsy = falsy;
+  exports.fastmap = fastmap;
+  exports.field = field$1;
+  exports.flush = flush;
+  exports.font = font;
+  exports.fontFamily = fontFamily;
+  exports.fontSize = fontSize;
+  exports.format = format$2;
+  exports.formatLocale = numberFormatDefaultLocale;
+  exports.formats = formats$1;
+  exports.hasOwnProperty = has$1;
+  exports.id = id;
+  exports.identity = identity$6;
+  exports.inferType = inferType;
+  exports.inferTypes = inferTypes;
+  exports.ingest = ingest$1;
+  exports.inherits = inherits;
+  exports.inrange = inrange;
+  exports.interpolate = interpolate;
+  exports.interpolateColors = interpolateColors;
+  exports.interpolateRange = interpolateRange;
+  exports.intersect = intersect$2;
+  exports.intersectBoxLine = intersectBoxLine;
+  exports.intersectPath = intersectPath;
+  exports.intersectPoint = intersectPoint;
+  exports.intersectRule = intersectRule;
+  exports.isArray = isArray;
+  exports.isBoolean = isBoolean$1;
+  exports.isDate = isDate$1;
+  exports.isFunction = isFunction;
+  exports.isIterable = isIterable;
+  exports.isNumber = isNumber$1;
+  exports.isObject = isObject;
+  exports.isRegExp = isRegExp;
+  exports.isString = isString;
+  exports.isTuple = isTuple;
+  exports.key = key;
+  exports.lerp = lerp;
+  exports.lineHeight = lineHeight;
+  exports.loader = loader;
+  exports.locale = locale;
+  exports.logger = logger;
+  exports.lruCache = lruCache;
+  exports.markup = markup;
+  exports.merge = merge$3;
+  exports.mergeConfig = mergeConfig;
+  exports.multiLineOffset = multiLineOffset;
+  exports.one = one$2;
+  exports.pad = pad$2;
+  exports.panLinear = panLinear;
+  exports.panLog = panLog;
+  exports.panPow = panPow;
+  exports.panSymlog = panSymlog;
+  exports.parse = parse;
+  exports.parseExpression = parser$1;
+  exports.parseSelector = eventSelector;
+  exports.pathCurves = curves;
+  exports.pathEqual = pathEqual;
+  exports.pathParse = pathParse;
+  exports.pathRectangle = vg_rect;
+  exports.pathRender = pathRender;
+  exports.pathSymbols = symbols;
+  exports.pathTrail = vg_trail;
+  exports.peek = peek$1;
+  exports.point = point;
+  exports.projection = projection;
+  exports.quantileLogNormal = quantileLogNormal;
+  exports.quantileNormal = quantileNormal;
+  exports.quantileUniform = quantileUniform;
+  exports.quantiles = quantiles;
+  exports.quantizeInterpolator = quantizeInterpolator;
+  exports.quarter = quarter;
+  exports.quartiles = quartiles;
+  exports.randomInteger = integer;
+  exports.randomKDE = kde;
+  exports.randomLCG = lcg$1;
+  exports.randomLogNormal = lognormal;
+  exports.randomMixture = mixture$1;
+  exports.randomNormal = gaussian;
+  exports.randomUniform = uniform;
+  exports.read = read;
+  exports.regressionExp = exp$1;
+  exports.regressionLinear = linear$2;
+  exports.regressionLoess = loess;
+  exports.regressionLog = log$3;
+  exports.regressionPoly = poly;
+  exports.regressionPow = pow$3;
+  exports.regressionQuad = quad;
+  exports.renderModule = renderModule;
+  exports.repeat = repeat;
+  exports.resetDefaultLocale = resetDefaultLocale;
+  exports.resetSVGClipId = resetSVGClipId;
+  exports.resetSVGDefIds = resetSVGDefIds;
+  exports.responseType = responseType;
+  exports.runtimeContext = context;
+  exports.sampleCurve = sampleCurve;
+  exports.sampleLogNormal = sampleLogNormal;
+  exports.sampleNormal = sampleNormal;
+  exports.sampleUniform = sampleUniform;
+  exports.scale = scale$4;
+  exports.sceneEqual = sceneEqual;
+  exports.sceneFromJSON = sceneFromJSON;
+  exports.scenePickVisit = pickVisit;
+  exports.sceneToJSON = sceneToJSON;
+  exports.sceneVisit = visit;
+  exports.sceneZOrder = zorder;
+  exports.scheme = scheme;
+  exports.serializeXML = serializeXML;
+  exports.setRandom = setRandom;
+  exports.span = span;
+  exports.splitAccessPath = splitAccessPath;
+  exports.stringValue = $;
+  exports.textMetrics = textMetrics;
+  exports.timeBin = bin$1;
+  exports.timeFloor = timeFloor;
+  exports.timeFormatLocale = timeFormatDefaultLocale;
+  exports.timeInterval = timeInterval;
+  exports.timeOffset = timeOffset;
+  exports.timeSequence = timeSequence;
+  exports.timeUnitSpecifier = timeUnitSpecifier;
+  exports.timeUnits = timeUnits;
+  exports.toBoolean = toBoolean;
+  exports.toDate = toDate;
+  exports.toNumber = toNumber;
+  exports.toSet = toSet;
+  exports.toString = toString;
+  exports.transform = transform$2;
+  exports.transforms = transforms;
+  exports.truncate = truncate$1;
+  exports.truthy = truthy;
+  exports.tupleid = tupleid;
+  exports.typeParsers = typeParsers;
+  exports.utcFloor = utcFloor;
+  exports.utcInterval = utcInterval;
+  exports.utcOffset = utcOffset;
+  exports.utcSequence = utcSequence;
+  exports.utcdayofyear = utcdayofyear;
+  exports.utcquarter = utcquarter;
+  exports.utcweek = utcweek;
+  exports.version = version;
+  exports.visitArray = visitArray;
+  exports.week = week;
+  exports.writeConfig = writeConfig;
+  exports.zero = zero$2;
+  exports.zoomLinear = zoomLinear;
+  exports.zoomLog = zoomLog;
+  exports.zoomPow = zoomPow;
+  exports.zoomSymlog = zoomSymlog;
+
+  Object.defineProperty(exports, '__esModule', { value: true });
+
+})));
+</script>
+    <script>(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('vega')) :
+  typeof define === 'function' && define.amd ? define(['exports', 'vega'], factory) :
+  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.vegaLite = {}, global.vega));
+})(this, (function (exports, vega) { 'use strict';
+
+  var name = "vega-lite";
+  var author = "Dominik Moritz, Kanit \"Ham\" Wongsuphasawat, Arvind Satyanarayan, Jeffrey Heer";
+  var version$1 = "5.2.0";
+  var collaborators = [
+  	"Kanit Wongsuphasawat (http://kanitw.yellowpigz.com)",
+  	"Dominik Moritz (https://www.domoritz.de)",
+  	"Arvind Satyanarayan (https://arvindsatya.com)",
+  	"Jeffrey Heer (https://jheer.org)"
+  ];
+  var homepage = "https://vega.github.io/vega-lite/";
+  var description$1 = "Vega-Lite is a concise high-level language for interactive visualization.";
+  var main$1 = "build/vega-lite.js";
+  var unpkg = "build/vega-lite.min.js";
+  var jsdelivr = "build/vega-lite.min.js";
+  var module = "build/src/index";
+  var types = "build/src/index.d.ts";
+  var bin = {
+  	vl2png: "./bin/vl2png",
+  	vl2svg: "./bin/vl2svg",
+  	vl2pdf: "./bin/vl2pdf",
+  	vl2vg: "./bin/vl2vg"
+  };
+  var directories = {
+  	test: "test"
+  };
+  var files = [
+  	"bin",
+  	"build",
+  	"src",
+  	"vega-lite*",
+  	"tsconfig.json"
+  ];
+  var scripts = {
+  	changelog: "conventional-changelog -p angular -r 2",
+  	prebuild: "yarn clean:build",
+  	build: "yarn build:only",
+  	"build:only": "tsc -p tsconfig.build.json && rollup -c",
+  	"prebuild:examples": "yarn build:only",
+  	"build:examples": "yarn data && TZ=America/Los_Angeles scripts/build-examples.sh",
+  	"prebuild:examples-full": "yarn build:only",
+  	"build:examples-full": "TZ=America/Los_Angeles scripts/build-examples.sh 1",
+  	"build:example": "TZ=America/Los_Angeles scripts/build-example.sh",
+  	"build:toc": "yarn build:jekyll && scripts/generate-toc",
+  	"build:site": "rollup -c site/rollup.config.js",
+  	"build:jekyll": "pushd site && bundle exec jekyll build -q && popd",
+  	"build:versions": "scripts/update-version.sh",
+  	clean: "yarn clean:build && del-cli 'site/data/*' 'examples/compiled/*.png' && find site/examples ! -name 'index.md' ! -name 'data' -type f -delete",
+  	"clean:build": "del-cli 'build/*' !build/vega-lite-schema.json",
+  	"predeploy:site": "yarn presite",
+  	"deploy:site": "gh-pages -d site",
+  	data: "rsync -r node_modules/vega-datasets/data/* site/data",
+  	schema: "mkdir -p build && ts-json-schema-generator -f tsconfig.json -p src/index.ts -t TopLevelSpec --no-type-check --no-ref-encode > build/vega-lite-schema.json && yarn renameschema && cp build/vega-lite-schema.json site/_data/",
+  	renameschema: "scripts/rename-schema.sh",
+  	presite: "yarn data && yarn schema && yarn build:site && yarn build:versions && scripts/create-example-pages.sh",
+  	site: "yarn site:only",
+  	"site:only": "pushd site && bundle exec jekyll serve -I -l && popd",
+  	prettierbase: "prettier '**/*.{md,css,yml}'",
+  	eslintbase: "eslint .",
+  	format: "yarn eslintbase --fix && yarn prettierbase --write",
+  	lint: "yarn eslintbase && yarn prettierbase --check",
+  	jest: "NODE_OPTIONS=--experimental-vm-modules npx jest",
+  	test: "yarn jest test/ && yarn lint && yarn schema && yarn jest examples/ && yarn test:runtime",
+  	"test:cover": "yarn jest --collectCoverage test/",
+  	"test:inspect": "node --inspect-brk --experimental-vm-modules ./node_modules/.bin/jest --runInBand test",
+  	"test:runtime": "NODE_OPTIONS=--experimental-vm-modules TZ=America/Los_Angeles npx jest test-runtime/ --config test-runtime/jest-config.json",
+  	"test:runtime:generate": "yarn build:only && del-cli test-runtime/resources && VL_GENERATE_TESTS=true yarn test:runtime",
+  	watch: "tsc -p tsconfig.build.json -w",
+  	"watch:site": "yarn build:site -w",
+  	"watch:test": "yarn jest --watch test/"
+  };
+  var repository = {
+  	type: "git",
+  	url: "https://github.com/vega/vega-lite.git"
+  };
+  var license = "BSD-3-Clause";
+  var bugs = {
+  	url: "https://github.com/vega/vega-lite/issues"
+  };
+  var devDependencies = {
+  	"@babel/core": "^7.16.0",
+  	"@babel/preset-env": "^7.16.0",
+  	"@babel/preset-typescript": "^7.16.0",
+  	"@rollup/plugin-alias": "^3.1.8",
+  	"@rollup/plugin-babel": "^5.3.0",
+  	"@rollup/plugin-commonjs": "^21.0.1",
+  	"@rollup/plugin-json": "^4.1.0",
+  	"@rollup/plugin-node-resolve": "^13.0.6",
+  	"@types/chai": "^4.2.22",
+  	"@types/d3": "^7.1.0",
+  	"@types/jest": "^27.0.2",
+  	"@types/mkdirp": "^1.0.2",
+  	"@types/pako": "^1.0.2",
+  	"@typescript-eslint/eslint-plugin": "^5.4.0",
+  	"@typescript-eslint/parser": "^5.4.0",
+  	ajv: "^8.8.0",
+  	"ajv-formats": "^2.1.1",
+  	chai: "^4.3.4",
+  	cheerio: "^1.0.0-rc.10",
+  	"conventional-changelog-cli": "^2.1.1",
+  	d3: "^7.1.1",
+  	"del-cli": "^4.0.1",
+  	eslint: "^8.2.0",
+  	"eslint-config-prettier": "^8.3.0",
+  	"eslint-plugin-jest": "^25.2.4",
+  	"eslint-plugin-prettier": "^4.0.0",
+  	"gh-pages": "^3.2.3",
+  	"highlight.js": "^11.3.1",
+  	jest: "^27.3.1",
+  	"jest-dev-server": "^6.0.0",
+  	mkdirp: "^1.0.4",
+  	pako: "^2.0.4",
+  	prettier: "^2.4.1",
+  	puppeteer: "^11.0.0",
+  	rollup: "^2.60.0",
+  	"rollup-plugin-bundle-size": "^1.0.3",
+  	"rollup-plugin-sourcemaps": "^0.6.3",
+  	"rollup-plugin-terser": "^7.0.2",
+  	serve: "^13.0.2",
+  	terser: "^5.10.0",
+  	"ts-jest": "^27.0.7",
+  	"ts-json-schema-generator": "^0.97.0",
+  	typescript: "~4.5.2",
+  	"vega-cli": "^5.21.0",
+  	"vega-datasets": "~2.2.0",
+  	"vega-embed": "^6.20.2",
+  	"vega-tooltip": "^0.27.0",
+  	"yaml-front-matter": "^4.1.1"
+  };
+  var dependencies = {
+  	"@types/clone": "~2.1.1",
+  	"array-flat-polyfill": "^1.0.1",
+  	clone: "~2.1.2",
+  	"fast-deep-equal": "~3.1.3",
+  	"fast-json-stable-stringify": "~2.1.0",
+  	"json-stringify-pretty-compact": "~3.0.0",
+  	tslib: "~2.3.1",
+  	"vega-event-selector": "~3.0.0",
+  	"vega-expression": "~5.0.0",
+  	"vega-util": "~1.17.0",
+  	yargs: "~17.2.1"
+  };
+  var peerDependencies = {
+  	vega: "^5.21.0"
+  };
+  var engines = {
+  	node: ">=12"
+  };
+  var pkg = {
+  	name: name,
+  	author: author,
+  	version: version$1,
+  	collaborators: collaborators,
+  	homepage: homepage,
+  	description: description$1,
+  	main: main$1,
+  	unpkg: unpkg,
+  	jsdelivr: jsdelivr,
+  	module: module,
+  	types: types,
+  	bin: bin,
+  	directories: directories,
+  	files: files,
+  	scripts: scripts,
+  	repository: repository,
+  	license: license,
+  	bugs: bugs,
+  	devDependencies: devDependencies,
+  	dependencies: dependencies,
+  	peerDependencies: peerDependencies,
+  	engines: engines
+  };
+
+  Array.prototype.flat||Object.defineProperty(Array.prototype,"flat",{configurable:!0,value:function r(){var t=isNaN(arguments[0])?1:Number(arguments[0]);return t?Array.prototype.reduce.call(this,function(a,e){return Array.isArray(e)?a.push.apply(a,r.call(e,t-1)):a.push(e),a},[]):Array.prototype.slice.call(this)},writable:!0}),Array.prototype.flatMap||Object.defineProperty(Array.prototype,"flatMap",{configurable:!0,value:function(r){return Array.prototype.map.apply(this,arguments).flat()},writable:!0});
+
+  var clone = {exports: {}};
+
+  (function (module) {
+    var clone = function () {
+
+      function _instanceof(obj, type) {
+        return type != null && obj instanceof type;
+      }
+
+      var nativeMap;
+
+      try {
+        nativeMap = Map;
+      } catch (_) {
+        // maybe a reference error because no `Map`. Give it a dummy value that no
+        // value will ever be an instanceof.
+        nativeMap = function () {};
+      }
+
+      var nativeSet;
+
+      try {
+        nativeSet = Set;
+      } catch (_) {
+        nativeSet = function () {};
+      }
+
+      var nativePromise;
+
+      try {
+        nativePromise = Promise;
+      } catch (_) {
+        nativePromise = function () {};
+      }
+      /**
+       * Clones (copies) an Object using deep copying.
+       *
+       * This function supports circular references by default, but if you are certain
+       * there are no circular references in your object, you can save some CPU time
+       * by calling clone(obj, false).
+       *
+       * Caution: if `circular` is false and `parent` contains circular references,
+       * your program may enter an infinite loop and crash.
+       *
+       * @param `parent` - the object to be cloned
+       * @param `circular` - set to true if the object to be cloned may contain
+       *    circular references. (optional - true by default)
+       * @param `depth` - set to a number if the object is only to be cloned to
+       *    a particular depth. (optional - defaults to Infinity)
+       * @param `prototype` - sets the prototype to be used when cloning an object.
+       *    (optional - defaults to parent prototype).
+       * @param `includeNonEnumerable` - set to true if the non-enumerable properties
+       *    should be cloned as well. Non-enumerable properties on the prototype
+       *    chain will be ignored. (optional - false by default)
+      */
+
+
+      function clone(parent, circular, depth, prototype, includeNonEnumerable) {
+        if (typeof circular === 'object') {
+          depth = circular.depth;
+          prototype = circular.prototype;
+          includeNonEnumerable = circular.includeNonEnumerable;
+          circular = circular.circular;
+        } // maintain two arrays for circular references, where corresponding parents
+        // and children have the same index
+
+
+        var allParents = [];
+        var allChildren = [];
+        var useBuffer = typeof Buffer != 'undefined';
+        if (typeof circular == 'undefined') circular = true;
+        if (typeof depth == 'undefined') depth = Infinity; // recurse this function so we don't reset allParents and allChildren
+
+        function _clone(parent, depth) {
+          // cloning null always returns null
+          if (parent === null) return null;
+          if (depth === 0) return parent;
+          var child;
+          var proto;
+
+          if (typeof parent != 'object') {
+            return parent;
+          }
+
+          if (_instanceof(parent, nativeMap)) {
+            child = new nativeMap();
+          } else if (_instanceof(parent, nativeSet)) {
+            child = new nativeSet();
+          } else if (_instanceof(parent, nativePromise)) {
+            child = new nativePromise(function (resolve, reject) {
+              parent.then(function (value) {
+                resolve(_clone(value, depth - 1));
+              }, function (err) {
+                reject(_clone(err, depth - 1));
+              });
+            });
+          } else if (clone.__isArray(parent)) {
+            child = [];
+          } else if (clone.__isRegExp(parent)) {
+            child = new RegExp(parent.source, __getRegExpFlags(parent));
+            if (parent.lastIndex) child.lastIndex = parent.lastIndex;
+          } else if (clone.__isDate(parent)) {
+            child = new Date(parent.getTime());
+          } else if (useBuffer && Buffer.isBuffer(parent)) {
+            if (Buffer.allocUnsafe) {
+              // Node.js >= 4.5.0
+              child = Buffer.allocUnsafe(parent.length);
+            } else {
+              // Older Node.js versions
+              child = new Buffer(parent.length);
+            }
+
+            parent.copy(child);
+            return child;
+          } else if (_instanceof(parent, Error)) {
+            child = Object.create(parent);
+          } else {
+            if (typeof prototype == 'undefined') {
+              proto = Object.getPrototypeOf(parent);
+              child = Object.create(proto);
+            } else {
+              child = Object.create(prototype);
+              proto = prototype;
+            }
+          }
+
+          if (circular) {
+            var index = allParents.indexOf(parent);
+
+            if (index != -1) {
+              return allChildren[index];
+            }
+
+            allParents.push(parent);
+            allChildren.push(child);
+          }
+
+          if (_instanceof(parent, nativeMap)) {
+            parent.forEach(function (value, key) {
+              var keyChild = _clone(key, depth - 1);
+
+              var valueChild = _clone(value, depth - 1);
+
+              child.set(keyChild, valueChild);
+            });
+          }
+
+          if (_instanceof(parent, nativeSet)) {
+            parent.forEach(function (value) {
+              var entryChild = _clone(value, depth - 1);
+
+              child.add(entryChild);
+            });
+          }
+
+          for (var i in parent) {
+            var attrs;
+
+            if (proto) {
+              attrs = Object.getOwnPropertyDescriptor(proto, i);
+            }
+
+            if (attrs && attrs.set == null) {
+              continue;
+            }
+
+            child[i] = _clone(parent[i], depth - 1);
+          }
+
+          if (Object.getOwnPropertySymbols) {
+            var symbols = Object.getOwnPropertySymbols(parent);
+
+            for (var i = 0; i < symbols.length; i++) {
+              // Don't need to worry about cloning a symbol because it is a primitive,
+              // like a number or string.
+              var symbol = symbols[i];
+              var descriptor = Object.getOwnPropertyDescriptor(parent, symbol);
+
+              if (descriptor && !descriptor.enumerable && !includeNonEnumerable) {
+                continue;
+              }
+
+              child[symbol] = _clone(parent[symbol], depth - 1);
+
+              if (!descriptor.enumerable) {
+                Object.defineProperty(child, symbol, {
+                  enumerable: false
+                });
+              }
+            }
+          }
+
+          if (includeNonEnumerable) {
+            var allPropertyNames = Object.getOwnPropertyNames(parent);
+
+            for (var i = 0; i < allPropertyNames.length; i++) {
+              var propertyName = allPropertyNames[i];
+              var descriptor = Object.getOwnPropertyDescriptor(parent, propertyName);
+
+              if (descriptor && descriptor.enumerable) {
+                continue;
+              }
+
+              child[propertyName] = _clone(parent[propertyName], depth - 1);
+              Object.defineProperty(child, propertyName, {
+                enumerable: false
+              });
+            }
+          }
+
+          return child;
+        }
+
+        return _clone(parent, depth);
+      }
+      /**
+       * Simple flat clone using prototype, accepts only objects, usefull for property
+       * override on FLAT configuration object (no nested props).
+       *
+       * USE WITH CAUTION! This may not behave as you wish if you do not know how this
+       * works.
+       */
+
+
+      clone.clonePrototype = function clonePrototype(parent) {
+        if (parent === null) return null;
+
+        var c = function () {};
+
+        c.prototype = parent;
+        return new c();
+      }; // private utility functions
+
+
+      function __objToStr(o) {
+        return Object.prototype.toString.call(o);
+      }
+
+      clone.__objToStr = __objToStr;
+
+      function __isDate(o) {
+        return typeof o === 'object' && __objToStr(o) === '[object Date]';
+      }
+
+      clone.__isDate = __isDate;
+
+      function __isArray(o) {
+        return typeof o === 'object' && __objToStr(o) === '[object Array]';
+      }
+
+      clone.__isArray = __isArray;
+
+      function __isRegExp(o) {
+        return typeof o === 'object' && __objToStr(o) === '[object RegExp]';
+      }
+
+      clone.__isRegExp = __isRegExp;
+
+      function __getRegExpFlags(re) {
+        var flags = '';
+        if (re.global) flags += 'g';
+        if (re.ignoreCase) flags += 'i';
+        if (re.multiline) flags += 'm';
+        return flags;
+      }
+
+      clone.__getRegExpFlags = __getRegExpFlags;
+      return clone;
+    }();
+
+    if (module.exports) {
+      module.exports = clone;
+    }
+  })(clone);
+
+  var clone_ = clone.exports;
+
+  var fastDeepEqual = function equal(a, b) {
+    if (a === b) return true;
+
+    if (a && b && typeof a == 'object' && typeof b == 'object') {
+      if (a.constructor !== b.constructor) return false;
+      var length, i, keys;
+
+      if (Array.isArray(a)) {
+        length = a.length;
+        if (length != b.length) return false;
+
+        for (i = length; i-- !== 0;) if (!equal(a[i], b[i])) return false;
+
+        return true;
+      }
+
+      if (a.constructor === RegExp) return a.source === b.source && a.flags === b.flags;
+      if (a.valueOf !== Object.prototype.valueOf) return a.valueOf() === b.valueOf();
+      if (a.toString !== Object.prototype.toString) return a.toString() === b.toString();
+      keys = Object.keys(a);
+      length = keys.length;
+      if (length !== Object.keys(b).length) return false;
+
+      for (i = length; i-- !== 0;) if (!Object.prototype.hasOwnProperty.call(b, keys[i])) return false;
+
+      for (i = length; i-- !== 0;) {
+        var key = keys[i];
+        if (!equal(a[key], b[key])) return false;
+      }
+
+      return true;
+    } // true if both NaN, false otherwise
+
+
+    return a !== a && b !== b;
+  };
+
+  var fastJsonStableStringify = function (data, opts) {
+    if (!opts) opts = {};
+    if (typeof opts === 'function') opts = {
+      cmp: opts
+    };
+    var cycles = typeof opts.cycles === 'boolean' ? opts.cycles : false;
+
+    var cmp = opts.cmp && function (f) {
+      return function (node) {
+        return function (a, b) {
+          var aobj = {
+            key: a,
+            value: node[a]
+          };
+          var bobj = {
+            key: b,
+            value: node[b]
+          };
+          return f(aobj, bobj);
+        };
+      };
+    }(opts.cmp);
+
+    var seen = [];
+    return function stringify(node) {
+      if (node && node.toJSON && typeof node.toJSON === 'function') {
+        node = node.toJSON();
+      }
+
+      if (node === undefined) return;
+      if (typeof node == 'number') return isFinite(node) ? '' + node : 'null';
+      if (typeof node !== 'object') return JSON.stringify(node);
+      var i, out;
+
+      if (Array.isArray(node)) {
+        out = '[';
+
+        for (i = 0; i < node.length; i++) {
+          if (i) out += ',';
+          out += stringify(node[i]) || 'null';
+        }
+
+        return out + ']';
+      }
+
+      if (node === null) return 'null';
+
+      if (seen.indexOf(node) !== -1) {
+        if (cycles) return JSON.stringify('__cycle__');
+        throw new TypeError('Converting circular structure to JSON');
+      }
+
+      var seenIndex = seen.push(node) - 1;
+      var keys = Object.keys(node).sort(cmp && cmp(node));
+      out = '';
+
+      for (i = 0; i < keys.length; i++) {
+        var key = keys[i];
+        var value = stringify(node[key]);
+        if (!value) continue;
+        if (out) out += ',';
+        out += JSON.stringify(key) + ':' + value;
+      }
+
+      seen.splice(seenIndex, 1);
+      return '{' + out + '}';
+    }(data);
+  };
+
+  function isLogicalOr(op) {
+    return !!op.or;
+  }
+  function isLogicalAnd(op) {
+    return !!op.and;
+  }
+  function isLogicalNot(op) {
+    return !!op.not;
+  }
+  function forEachLeaf(op, fn) {
+    if (isLogicalNot(op)) {
+      forEachLeaf(op.not, fn);
+    } else if (isLogicalAnd(op)) {
+      for (const subop of op.and) {
+        forEachLeaf(subop, fn);
+      }
+    } else if (isLogicalOr(op)) {
+      for (const subop of op.or) {
+        forEachLeaf(subop, fn);
+      }
+    } else {
+      fn(op);
+    }
+  }
+  function normalizeLogicalComposition(op, normalizer) {
+    if (isLogicalNot(op)) {
+      return {
+        not: normalizeLogicalComposition(op.not, normalizer)
+      };
+    } else if (isLogicalAnd(op)) {
+      return {
+        and: op.and.map(o => normalizeLogicalComposition(o, normalizer))
+      };
+    } else if (isLogicalOr(op)) {
+      return {
+        or: op.or.map(o => normalizeLogicalComposition(o, normalizer))
+      };
+    } else {
+      return normalizer(op);
+    }
+  }
+
+  const deepEqual = fastDeepEqual;
+  const duplicate = clone_;
+  function never(message) {
+    throw new Error(message);
+  }
+  /**
+   * Creates an object composed of the picked object properties.
+   *
+   * var object = {'a': 1, 'b': '2', 'c': 3};
+   * pick(object, ['a', 'c']);
+   * // → {'a': 1, 'c': 3}
+   */
+  // eslint-disable-next-line @typescript-eslint/ban-types
+
+  function pick(obj, props) {
+    const copy = {};
+
+    for (const prop of props) {
+      if (vega.hasOwnProperty(obj, prop)) {
+        copy[prop] = obj[prop];
+      }
+    }
+
+    return copy;
+  }
+  /**
+   * The opposite of _.pick; this method creates an object composed of the own
+   * and inherited enumerable string keyed properties of object that are not omitted.
+   */
+  // eslint-disable-next-line @typescript-eslint/ban-types
+
+  function omit(obj, props) {
+    const copy = { ...obj
+    };
+
+    for (const prop of props) {
+      delete copy[prop];
+    }
+
+    return copy;
+  }
+  /**
+   * Monkey patch Set so that `stringify` produces a string representation of sets.
+   */
+
+  Set.prototype['toJSON'] = function () {
+    return "Set(".concat([...this].map(x => fastJsonStableStringify(x)).join(','), ")");
+  };
+  /**
+   * Converts any object to a string representation that can be consumed by humans.
+   */
+
+
+  const stringify = fastJsonStableStringify;
+  /**
+   * Converts any object to a string of limited size, or a number.
+   */
+
+  function hash(a) {
+    if (vega.isNumber(a)) {
+      return a;
+    }
+
+    const str = vega.isString(a) ? a : fastJsonStableStringify(a); // short strings can be used as hash directly, longer strings are hashed to reduce memory usage
+
+    if (str.length < 250) {
+      return str;
+    } // from http://werxltd.com/wp/2010/05/13/javascript-implementation-of-javas-string-hashcode-method/
+
+
+    let h = 0;
+
+    for (let i = 0; i < str.length; i++) {
+      const char = str.charCodeAt(i);
+      h = (h << 5) - h + char;
+      h = h & h; // Convert to 32bit integer
+    }
+
+    return h;
+  }
+  function isNullOrFalse(x) {
+    return x === false || x === null;
+  }
+  function contains(array, item) {
+    return array.includes(item);
+  }
+  /**
+   * Returns true if any item returns true.
+   */
+
+  function some(arr, f) {
+    let i = 0;
+
+    for (const [k, a] of arr.entries()) {
+      if (f(a, k, i++)) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+  /**
+   * Returns true if all items return true.
+   */
+
+  function every(arr, f) {
+    let i = 0;
+
+    for (const [k, a] of arr.entries()) {
+      if (!f(a, k, i++)) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+  /**
+   * Like TS Partial but applies recursively to all properties.
+   */
+
+  /**
+   * recursively merges src into dest
+   */
+  function mergeDeep(dest) {
+    for (var _len = arguments.length, src = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+      src[_key - 1] = arguments[_key];
+    }
+
+    for (const s of src) {
+      deepMerge_(dest, s !== null && s !== void 0 ? s : {});
+    }
+
+    return dest;
+  }
+
+  function deepMerge_(dest, src) {
+    for (const property of keys(src)) {
+      vega.writeConfig(dest, property, src[property], true);
+    }
+  }
+
+  function unique(values, f) {
+    const results = [];
+    const u = {};
+    let v;
+
+    for (const val of values) {
+      v = f(val);
+
+      if (v in u) {
+        continue;
+      }
+
+      u[v] = 1;
+      results.push(val);
+    }
+
+    return results;
+  }
+
+  /**
+   * Returns true if the two dictionaries disagree. Applies only to defined values.
+   */
+  function isEqual(dict, other) {
+    const dictKeys = keys(dict);
+    const otherKeys = keys(other);
+
+    if (dictKeys.length !== otherKeys.length) {
+      return false;
+    }
+
+    for (const key of dictKeys) {
+      if (dict[key] !== other[key]) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+  function setEqual(a, b) {
+    if (a.size !== b.size) {
+      return false;
+    }
+
+    for (const e of a) {
+      if (!b.has(e)) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+  function hasIntersection(a, b) {
+    for (const key of a) {
+      if (b.has(key)) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+  function prefixGenerator(a) {
+    const prefixes = new Set();
+
+    for (const x of a) {
+      const splitField = vega.splitAccessPath(x); // Wrap every element other than the first in `[]`
+
+      const wrappedWithAccessors = splitField.map((y, i) => i === 0 ? y : "[".concat(y, "]"));
+      const computedPrefixes = wrappedWithAccessors.map((_, i) => wrappedWithAccessors.slice(0, i + 1).join(''));
+
+      for (const y of computedPrefixes) {
+        prefixes.add(y);
+      }
+    }
+
+    return prefixes;
+  }
+  /**
+   * Returns true if a and b have an intersection. Also return true if a or b are undefined
+   * since this means we don't know what fields a node produces or depends on.
+   */
+
+  function fieldIntersection(a, b) {
+    if (a === undefined || b === undefined) {
+      return true;
+    }
+
+    return hasIntersection(prefixGenerator(a), prefixGenerator(b));
+  } // eslint-disable-next-line @typescript-eslint/ban-types
+
+  function isEmpty(obj) {
+    return keys(obj).length === 0;
+  } // This is a stricter version of Object.keys but with better types. See https://github.com/Microsoft/TypeScript/pull/12253#issuecomment-263132208
+
+  const keys = Object.keys;
+  const vals = Object.values;
+  const entries$1 = Object.entries; // Using mapped type to declare a collect of flags for a string literal type S
+  // https://www.typescriptlang.org/docs/handbook/advanced-types.html#mapped-types
+
+  function isBoolean(b) {
+    return b === true || b === false;
+  }
+  /**
+   * Convert a string into a valid variable name
+   */
+
+  function varName(s) {
+    // Replace non-alphanumeric characters (anything besides a-zA-Z0-9_) with _
+    const alphanumericS = s.replace(/\W/g, '_'); // Add _ if the string has leading numbers.
+
+    return (s.match(/^\d+/) ? '_' : '') + alphanumericS;
+  }
+  function logicalExpr(op, cb) {
+    if (isLogicalNot(op)) {
+      return "!(".concat(logicalExpr(op.not, cb), ")");
+    } else if (isLogicalAnd(op)) {
+      return "(".concat(op.and.map(and => logicalExpr(and, cb)).join(') && ('), ")");
+    } else if (isLogicalOr(op)) {
+      return "(".concat(op.or.map(or => logicalExpr(or, cb)).join(') || ('), ")");
+    } else {
+      return cb(op);
+    }
+  }
+  /**
+   * Delete nested property of an object, and delete the ancestors of the property if they become empty.
+   */
+
+  function deleteNestedProperty(obj, orderedProps) {
+    if (orderedProps.length === 0) {
+      return true;
+    }
+
+    const prop = orderedProps.shift(); // eslint-disable-line @typescript-eslint/no-non-null-assertion
+
+    if (prop in obj && deleteNestedProperty(obj[prop], orderedProps)) {
+      delete obj[prop];
+    }
+
+    return isEmpty(obj);
+  }
+  function titleCase(s) {
+    return s.charAt(0).toUpperCase() + s.substr(1);
+  }
+  /**
+   * Converts a path to an access path with datum.
+   * @param path The field name.
+   * @param datum The string to use for `datum`.
+   */
+
+  function accessPathWithDatum(path) {
+    let datum = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'datum';
+    const pieces = vega.splitAccessPath(path);
+    const prefixes = [];
+
+    for (let i = 1; i <= pieces.length; i++) {
+      const prefix = "[".concat(pieces.slice(0, i).map(vega.stringValue).join(']['), "]");
+      prefixes.push("".concat(datum).concat(prefix));
+    }
+
+    return prefixes.join(' && ');
+  }
+  /**
+   * Return access with datum to the flattened field.
+   *
+   * @param path The field name.
+   * @param datum The string to use for `datum`.
+   */
+
+  function flatAccessWithDatum(path) {
+    let datum = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'datum';
+    return "".concat(datum, "[").concat(vega.stringValue(vega.splitAccessPath(path).join('.')), "]");
+  }
+
+  function escapePathAccess(string) {
+    return string.replace(/(\[|\]|\.|'|")/g, '\\$1');
+  }
+  /**
+   * Replaces path accesses with access to non-nested field.
+   * For example, `foo["bar"].baz` becomes `foo\\.bar\\.baz`.
+   */
+
+
+  function replacePathInField(path) {
+    return "".concat(vega.splitAccessPath(path).map(escapePathAccess).join('\\.'));
+  }
+  /**
+   * Replace all occurrences of a string with another string.
+   *
+   * @param string the string to replace in
+   * @param find the string to replace
+   * @param replacement the replacement
+   */
+
+  function replaceAll(string, find, replacement) {
+    return string.replace(new RegExp(find.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&'), 'g'), replacement);
+  }
+  /**
+   * Remove path accesses with access from field.
+   * For example, `foo["bar"].baz` becomes `foo.bar.baz`.
+   */
+
+  function removePathFromField(path) {
+    return "".concat(vega.splitAccessPath(path).join('.'));
+  }
+  /**
+   * Count the depth of the path. Returns 1 for fields that are not nested.
+   */
+
+  function accessPathDepth(path) {
+    if (!path) {
+      return 0;
+    }
+
+    return vega.splitAccessPath(path).length;
+  }
+  /**
+   * This is a replacement for chained || for numeric properties or properties that respect null so that 0 will be included.
+   */
+
+  function getFirstDefined() {
+    for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+      args[_key2] = arguments[_key2];
+    }
+
+    for (const arg of args) {
+      if (arg !== undefined) {
+        return arg;
+      }
+    }
+
+    return undefined;
+  } // variable used to generate id
+
+  let idCounter = 42;
+  /**
+   * Returns a new random id every time it gets called.
+   *
+   * Has side effect!
+   */
+
+  function uniqueId(prefix) {
+    const id = ++idCounter;
+    return prefix ? String(prefix) + id : id;
+  }
+  /**
+   * Resets the id counter used in uniqueId. This can be useful for testing.
+   */
+
+  function resetIdCounter() {
+    idCounter = 42;
+  }
+  function internalField(name) {
+    return isInternalField(name) ? name : "__".concat(name);
+  }
+  function isInternalField(name) {
+    return name.startsWith('__');
+  }
+  /**
+   * Normalize angle to be within [0,360).
+   */
+
+  function normalizeAngle(angle) {
+    if (angle === undefined) {
+      return undefined;
+    }
+
+    return (angle % 360 + 360) % 360;
+  }
+  /**
+   * Returns whether the passed in value is a valid number.
+   */
+
+  function isNumeric(value) {
+    if (vega.isNumber(value)) {
+      return true;
+    }
+
+    return !isNaN(value) && !isNaN(parseFloat(value));
+  }
+
+  /*
+   * Constants and utilities for encoding channels (Visual variables)
+   * such as 'x', 'y', 'color'.
+   */
+  // Facet
+  const ROW = 'row';
+  const COLUMN = 'column';
+  const FACET = 'facet'; // Position
+
+  const X = 'x';
+  const Y = 'y';
+  const X2 = 'x2';
+  const Y2 = 'y2'; // Position Offset
+
+  const XOFFSET = 'xOffset';
+  const YOFFSET = 'yOffset'; // Arc-Position
+
+  const RADIUS = 'radius';
+  const RADIUS2 = 'radius2';
+  const THETA = 'theta';
+  const THETA2 = 'theta2'; // Geo Position
+
+  const LATITUDE = 'latitude';
+  const LONGITUDE = 'longitude';
+  const LATITUDE2 = 'latitude2';
+  const LONGITUDE2 = 'longitude2'; // Mark property with scale
+
+  const COLOR = 'color';
+  const FILL = 'fill';
+  const STROKE = 'stroke';
+  const SHAPE = 'shape';
+  const SIZE = 'size';
+  const ANGLE = 'angle';
+  const OPACITY = 'opacity';
+  const FILLOPACITY = 'fillOpacity';
+  const STROKEOPACITY = 'strokeOpacity';
+  const STROKEWIDTH = 'strokeWidth';
+  const STROKEDASH = 'strokeDash'; // Non-scale channel
+
+  const TEXT$1 = 'text';
+  const ORDER = 'order';
+  const DETAIL = 'detail';
+  const KEY = 'key';
+  const TOOLTIP = 'tooltip';
+  const HREF = 'href';
+  const URL = 'url';
+  const DESCRIPTION = 'description';
+  const POSITION_CHANNEL_INDEX = {
+    x: 1,
+    y: 1,
+    x2: 1,
+    y2: 1
+  };
+  const POLAR_POSITION_CHANNEL_INDEX = {
+    theta: 1,
+    theta2: 1,
+    radius: 1,
+    radius2: 1
+  };
+  function isPolarPositionChannel(c) {
+    return c in POLAR_POSITION_CHANNEL_INDEX;
+  }
+  const GEO_POSIITON_CHANNEL_INDEX = {
+    longitude: 1,
+    longitude2: 1,
+    latitude: 1,
+    latitude2: 1
+  };
+  function getPositionChannelFromLatLong(channel) {
+    switch (channel) {
+      case LATITUDE:
+        return 'y';
+
+      case LATITUDE2:
+        return 'y2';
+
+      case LONGITUDE:
+        return 'x';
+
+      case LONGITUDE2:
+        return 'x2';
+    }
+  }
+  function isGeoPositionChannel(c) {
+    return c in GEO_POSIITON_CHANNEL_INDEX;
+  }
+  const GEOPOSITION_CHANNELS = keys(GEO_POSIITON_CHANNEL_INDEX);
+  const UNIT_CHANNEL_INDEX = { ...POSITION_CHANNEL_INDEX,
+    ...POLAR_POSITION_CHANNEL_INDEX,
+    ...GEO_POSIITON_CHANNEL_INDEX,
+    xOffset: 1,
+    yOffset: 1,
+    // color
+    color: 1,
+    fill: 1,
+    stroke: 1,
+    // other non-position with scale
+    opacity: 1,
+    fillOpacity: 1,
+    strokeOpacity: 1,
+    strokeWidth: 1,
+    strokeDash: 1,
+    size: 1,
+    angle: 1,
+    shape: 1,
+    // channels without scales
+    order: 1,
+    text: 1,
+    detail: 1,
+    key: 1,
+    tooltip: 1,
+    href: 1,
+    url: 1,
+    description: 1
+  };
+  function isColorChannel(channel) {
+    return channel === COLOR || channel === FILL || channel === STROKE;
+  }
+  const FACET_CHANNEL_INDEX = {
+    row: 1,
+    column: 1,
+    facet: 1
+  };
+  const FACET_CHANNELS = keys(FACET_CHANNEL_INDEX);
+  const CHANNEL_INDEX = { ...UNIT_CHANNEL_INDEX,
+    ...FACET_CHANNEL_INDEX
+  };
+  const CHANNELS = keys(CHANNEL_INDEX);
+  const {
+    order: _o,
+    detail: _d,
+    tooltip: _tt1,
+    ...SINGLE_DEF_CHANNEL_INDEX
+  } = CHANNEL_INDEX;
+  const {
+    row: _r,
+    column: _c,
+    facet: _f,
+    ...SINGLE_DEF_UNIT_CHANNEL_INDEX
+  } = SINGLE_DEF_CHANNEL_INDEX;
+  function isSingleDefUnitChannel(str) {
+    return !!SINGLE_DEF_UNIT_CHANNEL_INDEX[str];
+  }
+  function isChannel(str) {
+    return !!CHANNEL_INDEX[str];
+  }
+  const SECONDARY_RANGE_CHANNEL = [X2, Y2, LATITUDE2, LONGITUDE2, THETA2, RADIUS2];
+  function isSecondaryRangeChannel(c) {
+    const main = getMainRangeChannel(c);
+    return main !== c;
+  }
+
+  /**
+   * Get the main channel for a range channel. E.g. `x` for `x2`.
+   */
+  function getMainRangeChannel(channel) {
+    switch (channel) {
+      case X2:
+        return X;
+
+      case Y2:
+        return Y;
+
+      case LATITUDE2:
+        return LATITUDE;
+
+      case LONGITUDE2:
+        return LONGITUDE;
+
+      case THETA2:
+        return THETA;
+
+      case RADIUS2:
+        return RADIUS;
+    }
+
+    return channel;
+  }
+  function getVgPositionChannel(channel) {
+    if (isPolarPositionChannel(channel)) {
+      switch (channel) {
+        case THETA:
+          return 'startAngle';
+
+        case THETA2:
+          return 'endAngle';
+
+        case RADIUS:
+          return 'outerRadius';
+
+        case RADIUS2:
+          return 'innerRadius';
+      }
+    }
+
+    return channel;
+  }
+  /**
+   * Get the main channel for a range channel. E.g. `x` for `x2`.
+   */
+
+  function getSecondaryRangeChannel(channel) {
+    switch (channel) {
+      case X:
+        return X2;
+
+      case Y:
+        return Y2;
+
+      case LATITUDE:
+        return LATITUDE2;
+
+      case LONGITUDE:
+        return LONGITUDE2;
+
+      case THETA:
+        return THETA2;
+
+      case RADIUS:
+        return RADIUS2;
+    }
+
+    return undefined;
+  }
+  function getSizeChannel(channel) {
+    switch (channel) {
+      case X:
+      case X2:
+        return 'width';
+
+      case Y:
+      case Y2:
+        return 'height';
+    }
+
+    return undefined;
+  }
+  /**
+   * Get the main channel for a range channel. E.g. `x` for `x2`.
+   */
+
+  function getOffsetChannel(channel) {
+    switch (channel) {
+      case X:
+        return 'xOffset';
+
+      case Y:
+        return 'yOffset';
+
+      case X2:
+        return 'x2Offset';
+
+      case Y2:
+        return 'y2Offset';
+
+      case THETA:
+        return 'thetaOffset';
+
+      case RADIUS:
+        return 'radiusOffset';
+
+      case THETA2:
+        return 'theta2Offset';
+
+      case RADIUS2:
+        return 'radius2Offset';
+    }
+
+    return undefined;
+  }
+  /**
+   * Get the main channel for a range channel. E.g. `x` for `x2`.
+   */
+
+  function getOffsetScaleChannel(channel) {
+    switch (channel) {
+      case X:
+        return 'xOffset';
+
+      case Y:
+        return 'yOffset';
+    }
+
+    return undefined;
+  }
+  function getMainChannelFromOffsetChannel(channel) {
+    switch (channel) {
+      case 'xOffset':
+        return 'x';
+
+      case 'yOffset':
+        return 'y';
+    }
+  } // CHANNELS without COLUMN, ROW
+
+  const UNIT_CHANNELS = keys(UNIT_CHANNEL_INDEX); // NONPOSITION_CHANNELS = UNIT_CHANNELS without X, Y, X2, Y2;
+
+  const {
+    x: _x,
+    y: _y,
+    // x2 and y2 share the same scale as x and y
+    x2: _x2,
+    y2: _y2,
+    //
+    xOffset: _xo,
+    yOffset: _yo,
+    latitude: _latitude,
+    longitude: _longitude,
+    latitude2: _latitude2,
+    longitude2: _longitude2,
+    theta: _theta,
+    theta2: _theta2,
+    radius: _radius,
+    radius2: _radius2,
+    // The rest of unit channels then have scale
+    ...NONPOSITION_CHANNEL_INDEX
+  } = UNIT_CHANNEL_INDEX;
+  const NONPOSITION_CHANNELS = keys(NONPOSITION_CHANNEL_INDEX);
+  const POSITION_SCALE_CHANNEL_INDEX = {
+    x: 1,
+    y: 1
+  };
+  const POSITION_SCALE_CHANNELS = keys(POSITION_SCALE_CHANNEL_INDEX);
+  function isXorY(channel) {
+    return channel in POSITION_SCALE_CHANNEL_INDEX;
+  }
+  const POLAR_POSITION_SCALE_CHANNEL_INDEX = {
+    theta: 1,
+    radius: 1
+  };
+  const POLAR_POSITION_SCALE_CHANNELS = keys(POLAR_POSITION_SCALE_CHANNEL_INDEX);
+  function getPositionScaleChannel(sizeType) {
+    return sizeType === 'width' ? X : Y;
+  }
+  const OFFSET_SCALE_CHANNEL_INDEX = {
+    xOffset: 1,
+    yOffset: 1
+  };
+  function isXorYOffset(channel) {
+    return channel in OFFSET_SCALE_CHANNEL_INDEX;
+  } // NON_POSITION_SCALE_CHANNEL = SCALE_CHANNELS without position / offset
+
+  const {
+    // x2 and y2 share the same scale as x and y
+    // text and tooltip have format instead of scale,
+    // href has neither format, nor scale
+    text: _t,
+    tooltip: _tt,
+    href: _hr,
+    url: _u,
+    description: _al,
+    // detail and order have no scale
+    detail: _dd,
+    key: _k,
+    order: _oo,
+    ...NONPOSITION_SCALE_CHANNEL_INDEX
+  } = NONPOSITION_CHANNEL_INDEX;
+  const NONPOSITION_SCALE_CHANNELS = keys(NONPOSITION_SCALE_CHANNEL_INDEX);
+  function isNonPositionScaleChannel(channel) {
+    return !!NONPOSITION_CHANNEL_INDEX[channel];
+  }
+  /**
+   * @returns whether Vega supports legends for a particular channel
+   */
+
+  function supportLegend(channel) {
+    switch (channel) {
+      case COLOR:
+      case FILL:
+      case STROKE:
+      case SIZE:
+      case SHAPE:
+      case OPACITY:
+      case STROKEWIDTH:
+      case STROKEDASH:
+        return true;
+
+      case FILLOPACITY:
+      case STROKEOPACITY:
+      case ANGLE:
+        return false;
+    }
+  } // Declare SCALE_CHANNEL_INDEX
+
+  const SCALE_CHANNEL_INDEX = { ...POSITION_SCALE_CHANNEL_INDEX,
+    ...POLAR_POSITION_SCALE_CHANNEL_INDEX,
+    ...OFFSET_SCALE_CHANNEL_INDEX,
+    ...NONPOSITION_SCALE_CHANNEL_INDEX
+  };
+  /** List of channels with scales */
+
+  const SCALE_CHANNELS = keys(SCALE_CHANNEL_INDEX);
+  function isScaleChannel(channel) {
+    return !!SCALE_CHANNEL_INDEX[channel];
+  }
+
+  /**
+   * Return whether a channel supports a particular mark type.
+   * @param channel  channel name
+   * @param mark the mark type
+   * @return whether the mark supports the channel
+   */
+  function supportMark(channel, mark) {
+    return getSupportedMark(channel)[mark];
+  }
+  const ALL_MARKS = {
+    // all marks
+    arc: 'always',
+    area: 'always',
+    bar: 'always',
+    circle: 'always',
+    geoshape: 'always',
+    image: 'always',
+    line: 'always',
+    rule: 'always',
+    point: 'always',
+    rect: 'always',
+    square: 'always',
+    trail: 'always',
+    text: 'always',
+    tick: 'always'
+  };
+  const {
+    geoshape: _g,
+    ...ALL_MARKS_EXCEPT_GEOSHAPE
+  } = ALL_MARKS;
+  /**
+   * Return a dictionary showing whether a channel supports mark type.
+   * @param channel
+   * @return A dictionary mapping mark types to 'always', 'binned', or undefined
+   */
+
+  function getSupportedMark(channel) {
+    switch (channel) {
+      case COLOR:
+      case FILL:
+      case STROKE: // falls through
+
+      case DESCRIPTION:
+      case DETAIL:
+      case KEY:
+      case TOOLTIP:
+      case HREF:
+      case ORDER: // TODO: revise (order might not support rect, which is not stackable?)
+
+      case OPACITY:
+      case FILLOPACITY:
+      case STROKEOPACITY:
+      case STROKEWIDTH: // falls through
+
+      case FACET:
+      case ROW: // falls through
+
+      case COLUMN:
+        return ALL_MARKS;
+
+      case X:
+      case Y:
+      case XOFFSET:
+      case YOFFSET:
+      case LATITUDE:
+      case LONGITUDE:
+        // all marks except geoshape. geoshape does not use X, Y -- it uses a projection
+        return ALL_MARKS_EXCEPT_GEOSHAPE;
+
+      case X2:
+      case Y2:
+      case LATITUDE2:
+      case LONGITUDE2:
+        return {
+          area: 'always',
+          bar: 'always',
+          image: 'always',
+          rect: 'always',
+          rule: 'always',
+          circle: 'binned',
+          point: 'binned',
+          square: 'binned',
+          tick: 'binned',
+          line: 'binned',
+          trail: 'binned'
+        };
+
+      case SIZE:
+        return {
+          point: 'always',
+          tick: 'always',
+          rule: 'always',
+          circle: 'always',
+          square: 'always',
+          bar: 'always',
+          text: 'always',
+          line: 'always',
+          trail: 'always'
+        };
+
+      case STROKEDASH:
+        return {
+          line: 'always',
+          point: 'always',
+          tick: 'always',
+          rule: 'always',
+          circle: 'always',
+          square: 'always',
+          bar: 'always',
+          geoshape: 'always'
+        };
+
+      case SHAPE:
+        return {
+          point: 'always',
+          geoshape: 'always'
+        };
+
+      case TEXT$1:
+        return {
+          text: 'always'
+        };
+
+      case ANGLE:
+        return {
+          point: 'always',
+          square: 'always',
+          text: 'always'
+        };
+
+      case URL:
+        return {
+          image: 'always'
+        };
+
+      case THETA:
+        return {
+          text: 'always',
+          arc: 'always'
+        };
+
+      case RADIUS:
+        return {
+          text: 'always',
+          arc: 'always'
+        };
+
+      case THETA2:
+      case RADIUS2:
+        return {
+          arc: 'always'
+        };
+    }
+  }
+
+  function rangeType(channel) {
+    switch (channel) {
+      case X:
+      case Y:
+      case THETA:
+      case RADIUS:
+      case XOFFSET:
+      case YOFFSET:
+      case SIZE:
+      case ANGLE:
+      case STROKEWIDTH:
+      case OPACITY:
+      case FILLOPACITY:
+      case STROKEOPACITY: // X2 and Y2 use X and Y scales, so they similarly have continuous range. [falls through]
+
+      case X2:
+      case Y2:
+      case THETA2:
+      case RADIUS2:
+        return undefined;
+
+      case FACET:
+      case ROW:
+      case COLUMN:
+      case SHAPE:
+      case STROKEDASH: // TEXT, TOOLTIP, URL, and HREF have no scale but have discrete output [falls through]
+
+      case TEXT$1:
+      case TOOLTIP:
+      case HREF:
+      case URL:
+      case DESCRIPTION:
+        return 'discrete';
+      // Color can be either continuous or discrete, depending on scale type.
+
+      case COLOR:
+      case FILL:
+      case STROKE:
+        return 'flexible';
+      // No scale, no range type.
+
+      case LATITUDE:
+      case LONGITUDE:
+      case LATITUDE2:
+      case LONGITUDE2:
+      case DETAIL:
+      case KEY:
+      case ORDER:
+        return undefined;
+    }
+  }
+
+  const AGGREGATE_OP_INDEX = {
+    argmax: 1,
+    argmin: 1,
+    average: 1,
+    count: 1,
+    distinct: 1,
+    product: 1,
+    max: 1,
+    mean: 1,
+    median: 1,
+    min: 1,
+    missing: 1,
+    q1: 1,
+    q3: 1,
+    ci0: 1,
+    ci1: 1,
+    stderr: 1,
+    stdev: 1,
+    stdevp: 1,
+    sum: 1,
+    valid: 1,
+    values: 1,
+    variance: 1,
+    variancep: 1
+  };
+  const MULTIDOMAIN_SORT_OP_INDEX = {
+    count: 1,
+    min: 1,
+    max: 1
+  };
+  function isArgminDef(a) {
+    return !!a && !!a['argmin'];
+  }
+  function isArgmaxDef(a) {
+    return !!a && !!a['argmax'];
+  }
+  function isAggregateOp(a) {
+    return vega.isString(a) && !!AGGREGATE_OP_INDEX[a];
+  }
+  const COUNTING_OPS = new Set(['count', 'valid', 'missing', 'distinct']);
+  function isCountingAggregateOp(aggregate) {
+    return vega.isString(aggregate) && COUNTING_OPS.has(aggregate);
+  }
+  function isMinMaxOp(aggregate) {
+    return vega.isString(aggregate) && contains(['min', 'max'], aggregate);
+  }
+  /** Additive-based aggregation operations. These can be applied to stack. */
+
+  const SUM_OPS = new Set(['count', 'sum', 'distinct', 'valid', 'missing']);
+  /**
+   * Aggregation operators that always produce values within the range [domainMin, domainMax].
+   */
+
+  const SHARED_DOMAIN_OPS = new Set(['mean', 'average', 'median', 'q1', 'q3', 'min', 'max']);
+
+  /**
+   * Create a key for the bin configuration. Not for prebinned bin.
+   */
+  function binToString(bin) {
+    if (vega.isBoolean(bin)) {
+      bin = normalizeBin(bin, undefined);
+    }
+
+    return 'bin' + keys(bin).map(p => isParameterExtent(bin[p]) ? varName("_".concat(p, "_").concat(entries$1(bin[p]))) : varName("_".concat(p, "_").concat(bin[p]))).join('');
+  }
+  /**
+   * Vega-Lite should bin the data.
+   */
+
+  function isBinning(bin) {
+    return bin === true || isBinParams(bin) && !bin.binned;
+  }
+  /**
+   * The data is already binned and so Vega-Lite should not bin it again.
+   */
+
+  function isBinned(bin) {
+    return bin === 'binned' || isBinParams(bin) && bin.binned === true;
+  }
+  function isBinParams(bin) {
+    return vega.isObject(bin);
+  }
+  function isParameterExtent(extent) {
+    return extent === null || extent === void 0 ? void 0 : extent['param'];
+  }
+  function autoMaxBins(channel) {
+    switch (channel) {
+      case ROW:
+      case COLUMN:
+      case SIZE:
+      case COLOR:
+      case FILL:
+      case STROKE:
+      case STROKEWIDTH:
+      case OPACITY:
+      case FILLOPACITY:
+      case STROKEOPACITY: // Facets and Size shouldn't have too many bins
+      // We choose 6 like shape to simplify the rule [falls through]
+
+      case SHAPE:
+        return 6;
+      // Vega's "shape" has 6 distinct values
+
+      case STROKEDASH:
+        return 4;
+      // We only provide 5 different stroke dash values (but 4 is more effective)
+
+      default:
+        return 10;
+    }
+  }
+
+  function isExprRef(o) {
+    return o && !!o['expr'];
+  }
+  function replaceExprRef(index) {
+    const props = keys(index || {});
+    const newIndex = {};
+
+    for (const prop of props) {
+      newIndex[prop] = signalRefOrValue(index[prop]);
+    }
+
+    return newIndex;
+  }
+
+  function extractTitleConfig(titleConfig) {
+    const {
+      // These are non-mark title config that need to be hardcoded
+      anchor,
+      frame,
+      offset,
+      orient,
+      angle,
+      limit,
+      // color needs to be redirect to fill
+      color,
+      // subtitle properties
+      subtitleColor,
+      subtitleFont,
+      subtitleFontSize,
+      subtitleFontStyle,
+      subtitleFontWeight,
+      subtitleLineHeight,
+      subtitlePadding,
+      // The rest are mark config.
+      ...rest
+    } = titleConfig;
+    const titleMarkConfig = { ...rest,
+      ...(color ? {
+        fill: color
+      } : {})
+    }; // These are non-mark title config that need to be hardcoded
+
+    const nonMarkTitleProperties = { ...(anchor ? {
+        anchor
+      } : {}),
+      ...(frame ? {
+        frame
+      } : {}),
+      ...(offset ? {
+        offset
+      } : {}),
+      ...(orient ? {
+        orient
+      } : {}),
+      ...(angle !== undefined ? {
+        angle
+      } : {}),
+      ...(limit !== undefined ? {
+        limit
+      } : {})
+    }; // subtitle part can stay in config.title since header titles do not use subtitle
+
+    const subtitle = { ...(subtitleColor ? {
+        subtitleColor
+      } : {}),
+      ...(subtitleFont ? {
+        subtitleFont
+      } : {}),
+      ...(subtitleFontSize ? {
+        subtitleFontSize
+      } : {}),
+      ...(subtitleFontStyle ? {
+        subtitleFontStyle
+      } : {}),
+      ...(subtitleFontWeight ? {
+        subtitleFontWeight
+      } : {}),
+      ...(subtitleLineHeight ? {
+        subtitleLineHeight
+      } : {}),
+      ...(subtitlePadding ? {
+        subtitlePadding
+      } : {})
+    };
+    const subtitleMarkConfig = pick(titleConfig, ['align', 'baseline', 'dx', 'dy', 'limit']);
+    return {
+      titleMarkConfig,
+      subtitleMarkConfig,
+      nonMarkTitleProperties,
+      subtitle
+    };
+  }
+  function isText(v) {
+    return vega.isString(v) || vega.isArray(v) && vega.isString(v[0]);
+  }
+
+  function isSignalRef(o) {
+    return o && !!o['signal'];
+  } // TODO: add type of value (Make it VgValueRef<V extends ValueOrGradient> {value?:V ...})
+
+  function isVgRangeStep(range) {
+    return !!range['step'];
+  }
+  function isDataRefUnionedDomain(domain) {
+    if (!vega.isArray(domain)) {
+      return 'fields' in domain && !('data' in domain);
+    }
+
+    return false;
+  }
+  function isFieldRefUnionDomain(domain) {
+    if (!vega.isArray(domain)) {
+      return 'fields' in domain && 'data' in domain;
+    }
+
+    return false;
+  }
+  function isDataRefDomain(domain) {
+    if (!vega.isArray(domain)) {
+      return 'field' in domain && 'data' in domain;
+    }
+
+    return false;
+  }
+  const VG_MARK_CONFIG_INDEX = {
+    aria: 1,
+    description: 1,
+    ariaRole: 1,
+    ariaRoleDescription: 1,
+    blend: 1,
+    opacity: 1,
+    fill: 1,
+    fillOpacity: 1,
+    stroke: 1,
+    strokeCap: 1,
+    strokeWidth: 1,
+    strokeOpacity: 1,
+    strokeDash: 1,
+    strokeDashOffset: 1,
+    strokeJoin: 1,
+    strokeOffset: 1,
+    strokeMiterLimit: 1,
+    startAngle: 1,
+    endAngle: 1,
+    padAngle: 1,
+    innerRadius: 1,
+    outerRadius: 1,
+    size: 1,
+    shape: 1,
+    interpolate: 1,
+    tension: 1,
+    orient: 1,
+    align: 1,
+    baseline: 1,
+    text: 1,
+    dir: 1,
+    dx: 1,
+    dy: 1,
+    ellipsis: 1,
+    limit: 1,
+    radius: 1,
+    theta: 1,
+    angle: 1,
+    font: 1,
+    fontSize: 1,
+    fontWeight: 1,
+    fontStyle: 1,
+    lineBreak: 1,
+    lineHeight: 1,
+    cursor: 1,
+    href: 1,
+    tooltip: 1,
+    cornerRadius: 1,
+    cornerRadiusTopLeft: 1,
+    cornerRadiusTopRight: 1,
+    cornerRadiusBottomLeft: 1,
+    cornerRadiusBottomRight: 1,
+    aspect: 1,
+    width: 1,
+    height: 1,
+    url: 1,
+    smooth: 1 // commented below are vg channel that do not have mark config.
+    // x: 1,
+    // y: 1,
+    // x2: 1,
+    // y2: 1,
+    // xc'|'yc'
+    // clip: 1,
+    // path: 1,
+    // url: 1,
+
+  };
+  const VG_MARK_CONFIGS = keys(VG_MARK_CONFIG_INDEX);
+  const VG_MARK_INDEX = {
+    arc: 1,
+    area: 1,
+    group: 1,
+    image: 1,
+    line: 1,
+    path: 1,
+    rect: 1,
+    rule: 1,
+    shape: 1,
+    symbol: 1,
+    text: 1,
+    trail: 1
+  }; // Vega's cornerRadius channels.
+
+  const VG_CORNERRADIUS_CHANNELS = ['cornerRadius', 'cornerRadiusTopLeft', 'cornerRadiusTopRight', 'cornerRadiusBottomLeft', 'cornerRadiusBottomRight'];
+
+  function signalOrValueRefWithCondition(val) {
+    const condition = vega.isArray(val.condition) ? val.condition.map(conditionalSignalRefOrValue) : conditionalSignalRefOrValue(val.condition);
+    return { ...signalRefOrValue(val),
+      condition
+    };
+  }
+  function signalRefOrValue(value) {
+    if (isExprRef(value)) {
+      const {
+        expr,
+        ...rest
+      } = value;
+      return {
+        signal: expr,
+        ...rest
+      };
+    }
+
+    return value;
+  }
+  function conditionalSignalRefOrValue(value) {
+    if (isExprRef(value)) {
+      const {
+        expr,
+        ...rest
+      } = value;
+      return {
+        signal: expr,
+        ...rest
+      };
+    }
+
+    return value;
+  }
+  function signalOrValueRef(value) {
+    if (isExprRef(value)) {
+      const {
+        expr,
+        ...rest
+      } = value;
+      return {
+        signal: expr,
+        ...rest
+      };
+    }
+
+    if (isSignalRef(value)) {
+      return value;
+    }
+
+    return value !== undefined ? {
+      value
+    } : undefined;
+  }
+  function exprFromSignalRefOrValue(ref) {
+    if (isSignalRef(ref)) {
+      return ref.signal;
+    }
+
+    return vega.stringValue(ref);
+  }
+  function exprFromValueRefOrSignalRef(ref) {
+    if (isSignalRef(ref)) {
+      return ref.signal;
+    }
+
+    return vega.stringValue(ref.value);
+  }
+  function signalOrStringValue(v) {
+    if (isSignalRef(v)) {
+      return v.signal;
+    }
+
+    return v == null ? null : vega.stringValue(v);
+  }
+  function applyMarkConfig(e, model, propsList) {
+    for (const property of propsList) {
+      const value = getMarkConfig(property, model.markDef, model.config);
+
+      if (value !== undefined) {
+        e[property] = signalOrValueRef(value);
+      }
+    }
+
+    return e;
+  }
+  function getStyles(mark) {
+    var _mark$style;
+
+    return [].concat(mark.type, (_mark$style = mark.style) !== null && _mark$style !== void 0 ? _mark$style : []);
+  }
+  function getMarkPropOrConfig(channel, mark, config) {
+    let opt = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
+    const {
+      vgChannel,
+      ignoreVgConfig
+    } = opt;
+
+    if (vgChannel && mark[vgChannel] !== undefined) {
+      return mark[vgChannel];
+    } else if (mark[channel] !== undefined) {
+      return mark[channel];
+    } else if (ignoreVgConfig && (!vgChannel || vgChannel === channel)) {
+      return undefined;
+    }
+
+    return getMarkConfig(channel, mark, config, opt);
+  }
+  /**
+   * Return property value from style or mark specific config property if exists.
+   * Otherwise, return general mark specific config.
+   */
+
+  function getMarkConfig(channel, mark, config) {
+    let {
+      vgChannel
+    } = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
+    return getFirstDefined( // style config has highest precedence
+    vgChannel ? getMarkStyleConfig(channel, mark, config.style) : undefined, getMarkStyleConfig(channel, mark, config.style), // then mark-specific config
+    vgChannel ? config[mark.type][vgChannel] : undefined, config[mark.type][channel], // Need to cast because MarkDef doesn't perfectly match with AnyMarkConfig, but if the type isn't available, we'll get nothing here, which is fine
+    // If there is vgChannel, skip vl channel.
+    // For example, vl size for text is vg fontSize, but config.mark.size is only for point size.
+    vgChannel ? config.mark[vgChannel] : config.mark[channel] // Need to cast for the same reason as above
+    );
+  }
+  function getMarkStyleConfig(prop, mark, styleConfigIndex) {
+    return getStyleConfig(prop, getStyles(mark), styleConfigIndex);
+  }
+  function getStyleConfig(p, styles, styleConfigIndex) {
+    styles = vega.array(styles);
+    let value;
+
+    for (const style of styles) {
+      const styleConfig = styleConfigIndex[style];
+
+      if (styleConfig && styleConfig[p] !== undefined) {
+        value = styleConfig[p];
+      }
+    }
+
+    return value;
+  }
+  /**
+   * Return Vega sort parameters (tuple of field and order).
+   */
+
+  function sortParams(orderDef, fieldRefOption) {
+    return vega.array(orderDef).reduce((s, orderChannelDef) => {
+      var _orderChannelDef$sort;
+
+      s.field.push(vgField(orderChannelDef, fieldRefOption));
+      s.order.push((_orderChannelDef$sort = orderChannelDef.sort) !== null && _orderChannelDef$sort !== void 0 ? _orderChannelDef$sort : 'ascending');
+      return s;
+    }, {
+      field: [],
+      order: []
+    });
+  }
+  function mergeTitleFieldDefs(f1, f2) {
+    const merged = [...f1];
+    f2.forEach(fdToMerge => {
+      for (const fieldDef1 of merged) {
+        // If already exists, no need to append to merged array
+        if (deepEqual(fieldDef1, fdToMerge)) {
+          return;
+        }
+      }
+
+      merged.push(fdToMerge);
+    });
+    return merged;
+  }
+  function mergeTitle(title1, title2) {
+    if (deepEqual(title1, title2) || !title2) {
+      // if titles are the same or title2 is falsy
+      return title1;
+    } else if (!title1) {
+      // if title1 is falsy
+      return title2;
+    } else {
+      return [...vega.array(title1), ...vega.array(title2)].join(', ');
+    }
+  }
+  function mergeTitleComponent(v1, v2) {
+    const v1Val = v1.value;
+    const v2Val = v2.value;
+
+    if (v1Val == null || v2Val === null) {
+      return {
+        explicit: v1.explicit,
+        value: null
+      };
+    } else if ((isText(v1Val) || isSignalRef(v1Val)) && (isText(v2Val) || isSignalRef(v2Val))) {
+      return {
+        explicit: v1.explicit,
+        value: mergeTitle(v1Val, v2Val)
+      };
+    } else if (isText(v1Val) || isSignalRef(v1Val)) {
+      return {
+        explicit: v1.explicit,
+        value: v1Val
+      };
+    } else if (isText(v2Val) || isSignalRef(v2Val)) {
+      return {
+        explicit: v1.explicit,
+        value: v2Val
+      };
+    } else if (!isText(v1Val) && !isSignalRef(v1Val) && !isText(v2Val) && !isSignalRef(v2Val)) {
+      return {
+        explicit: v1.explicit,
+        value: mergeTitleFieldDefs(v1Val, v2Val)
+      };
+    }
+    /* istanbul ignore next: Condition should not happen -- only for warning in development. */
+
+
+    throw new Error('It should never reach here');
+  }
+
+  function _defineProperty(obj, key, value) {
+    if (key in obj) {
+      Object.defineProperty(obj, key, {
+        value: value,
+        enumerable: true,
+        configurable: true,
+        writable: true
+      });
+    } else {
+      obj[key] = value;
+    }
+
+    return obj;
+  }
+
+  function _classPrivateFieldGet(receiver, privateMap) {
+    var descriptor = _classExtractFieldDescriptor(receiver, privateMap, "get");
+
+    return _classApplyDescriptorGet(receiver, descriptor);
+  }
+
+  function _classPrivateFieldSet(receiver, privateMap, value) {
+    var descriptor = _classExtractFieldDescriptor(receiver, privateMap, "set");
+
+    _classApplyDescriptorSet(receiver, descriptor, value);
+
+    return value;
+  }
+
+  function _classExtractFieldDescriptor(receiver, privateMap, action) {
+    if (!privateMap.has(receiver)) {
+      throw new TypeError("attempted to " + action + " private field on non-instance");
+    }
+
+    return privateMap.get(receiver);
+  }
+
+  function _classApplyDescriptorGet(receiver, descriptor) {
+    if (descriptor.get) {
+      return descriptor.get.call(receiver);
+    }
+
+    return descriptor.value;
+  }
+
+  function _classApplyDescriptorSet(receiver, descriptor, value) {
+    if (descriptor.set) {
+      descriptor.set.call(receiver, value);
+    } else {
+      if (!descriptor.writable) {
+        throw new TypeError("attempted to set read only private field");
+      }
+
+      descriptor.value = value;
+    }
+  }
+
+  function _checkPrivateRedeclaration(obj, privateCollection) {
+    if (privateCollection.has(obj)) {
+      throw new TypeError("Cannot initialize the same private elements twice on an object");
+    }
+  }
+
+  function _classPrivateFieldInitSpec(obj, privateMap, value) {
+    _checkPrivateRedeclaration(obj, privateMap);
+
+    privateMap.set(obj, value);
+  }
+
+  /**
+   * Collection of all Vega-Lite Error Messages
+   */
+  function invalidSpec(spec) {
+    return "Invalid specification ".concat(stringify(spec), ". Make sure the specification includes at least one of the following properties: \"mark\", \"layer\", \"facet\", \"hconcat\", \"vconcat\", \"concat\", or \"repeat\".");
+  } // FIT
+
+  const FIT_NON_SINGLE = 'Autosize "fit" only works for single views and layered views.';
+  function containerSizeNonSingle(name) {
+    const uName = name == 'width' ? 'Width' : 'Height';
+    return "".concat(uName, " \"container\" only works for single views and layered views.");
+  }
+  function containerSizeNotCompatibleWithAutosize(name) {
+    const uName = name == 'width' ? 'Width' : 'Height';
+    const fitDirection = name == 'width' ? 'x' : 'y';
+    return "".concat(uName, " \"container\" only works well with autosize \"fit\" or \"fit-").concat(fitDirection, "\".");
+  }
+  function droppingFit(channel) {
+    return channel ? "Dropping \"fit-".concat(channel, "\" because spec has discrete ").concat(getSizeChannel(channel), ".") : "Dropping \"fit\" because spec has discrete size.";
+  } // VIEW SIZE
+
+  function unknownField(channel) {
+    return "Unknown field for ".concat(channel, ". Cannot calculate view size.");
+  } // SELECTION
+
+  function cannotProjectOnChannelWithoutField(channel) {
+    return "Cannot project a selection on encoding channel \"".concat(channel, "\", which has no field.");
+  }
+  function cannotProjectAggregate(channel, aggregate) {
+    return "Cannot project a selection on encoding channel \"".concat(channel, "\" as it uses an aggregate function (\"").concat(aggregate, "\").");
+  }
+  function nearestNotSupportForContinuous(mark) {
+    return "The \"nearest\" transform is not supported for ".concat(mark, " marks.");
+  }
+  function selectionNotSupported(mark) {
+    return "Selection not supported for ".concat(mark, " yet.");
+  }
+  function selectionNotFound(name) {
+    return "Cannot find a selection named \"".concat(name, "\".");
+  }
+  const SCALE_BINDINGS_CONTINUOUS = 'Scale bindings are currently only supported for scales with unbinned, continuous domains.';
+  const LEGEND_BINDINGS_MUST_HAVE_PROJECTION = 'Legend bindings are only supported for selections over an individual field or encoding channel.';
+  function cannotLookupVariableParameter(name) {
+    return "Lookups can only be performed on selection parameters. \"".concat(name, "\" is a variable parameter.");
+  }
+  function noSameUnitLookup(name) {
+    return "Cannot define and lookup the \"".concat(name, "\" selection in the same view. ") + "Try moving the lookup into a second, layered view?";
+  }
+  const NEEDS_SAME_SELECTION = 'The same selection must be used to override scale domains in a layered view.';
+  const INTERVAL_INITIALIZED_WITH_X_Y = 'Interval selections should be initialized using "x" and/or "y" keys.'; // REPEAT
+
+  function noSuchRepeatedValue(field) {
+    return "Unknown repeated value \"".concat(field, "\".");
+  }
+  function columnsNotSupportByRowCol(type) {
+    return "The \"columns\" property cannot be used when \"".concat(type, "\" has nested row/column.");
+  } // CONCAT / REPEAT
+
+  const CONCAT_CANNOT_SHARE_AXIS = 'Axes cannot be shared in concatenated or repeated views yet (https://github.com/vega/vega-lite/issues/2415).'; // DATA
+
+  function unrecognizedParse(p) {
+    return "Unrecognized parse \"".concat(p, "\".");
+  }
+  function differentParse(field, local, ancestor) {
+    return "An ancestor parsed field \"".concat(field, "\" as ").concat(ancestor, " but a child wants to parse the field as ").concat(local, ".");
+  }
+  const ADD_SAME_CHILD_TWICE = 'Attempt to add the same child twice.'; // TRANSFORMS
+
+  function invalidTransformIgnored(transform) {
+    return "Ignoring an invalid transform: ".concat(stringify(transform), ".");
+  }
+  const NO_FIELDS_NEEDS_AS = 'If "from.fields" is not specified, "as" has to be a string that specifies the key to be used for the data from the secondary source.'; // ENCODING & FACET
+
+  function customFormatTypeNotAllowed(channel) {
+    return "Config.customFormatTypes is not true, thus custom format type and format for channel ".concat(channel, " are dropped.");
+  }
+  function projectionOverridden(opt) {
+    const {
+      parentProjection,
+      projection
+    } = opt;
+    return "Layer's shared projection ".concat(stringify(parentProjection), " is overridden by a child projection ").concat(stringify(projection), ".");
+  }
+  const REPLACE_ANGLE_WITH_THETA = 'Arc marks uses theta channel rather than angle, replacing angle with theta.';
+  function offsetNestedInsideContinuousPositionScaleDropped(mainChannel) {
+    return "".concat(mainChannel, "Offset dropped because ").concat(mainChannel, " is continuous");
+  }
+  function replaceOffsetWithMainChannel(mainChannel) {
+    return "There is no ".concat(mainChannel, " encoding. Replacing ").concat(mainChannel, "Offset encoding as ").concat(mainChannel, ".");
+  }
+  function primitiveChannelDef(channel, type, value) {
+    return "Channel ".concat(channel, " is a ").concat(type, ". Converted to {value: ").concat(stringify(value), "}.");
+  }
+  function invalidFieldType(type) {
+    return "Invalid field type \"".concat(type, "\".");
+  }
+  function invalidFieldTypeForCountAggregate(type, aggregate) {
+    return "Invalid field type \"".concat(type, "\" for aggregate: \"").concat(aggregate, "\", using \"quantitative\" instead.");
+  }
+  function invalidAggregate(aggregate) {
+    return "Invalid aggregation operator \"".concat(aggregate, "\".");
+  }
+  function droppingColor(type, opt) {
+    const {
+      fill,
+      stroke
+    } = opt;
+    return "Dropping color ".concat(type, " as the plot also has ").concat(fill && stroke ? 'fill and stroke' : fill ? 'fill' : 'stroke', ".");
+  }
+  function relativeBandSizeNotSupported(sizeChannel) {
+    return "Position range does not support relative band size for ".concat(sizeChannel, ".");
+  }
+  function emptyFieldDef(fieldDef, channel) {
+    return "Dropping ".concat(stringify(fieldDef), " from channel \"").concat(channel, "\" since it does not contain any data field, datum, value, or signal.");
+  }
+  const LINE_WITH_VARYING_SIZE = 'Line marks cannot encode size with a non-groupby field. You may want to use trail marks instead.';
+  function incompatibleChannel(channel, markOrFacet, when) {
+    return "".concat(channel, " dropped as it is incompatible with \"").concat(markOrFacet, "\"").concat(when ? " when ".concat(when) : '', ".");
+  }
+  function offsetEncodingScaleIgnored(channel) {
+    return "".concat(channel, " encoding has no scale, so specified scale is ignored.");
+  }
+  function invalidEncodingChannel(channel) {
+    return "".concat(channel, "-encoding is dropped as ").concat(channel, " is not a valid encoding channel.");
+  }
+  function channelShouldBeDiscrete(channel) {
+    return "".concat(channel, " encoding should be discrete (ordinal / nominal / binned).");
+  }
+  function channelShouldBeDiscreteOrDiscretizing(channel) {
+    return "".concat(channel, " encoding should be discrete (ordinal / nominal / binned) or use a discretizing scale (e.g. threshold).");
+  }
+  function facetChannelDropped(channels) {
+    return "Facet encoding dropped as ".concat(channels.join(' and '), " ").concat(channels.length > 1 ? 'are' : 'is', " also specified.");
+  }
+  function discreteChannelCannotEncode(channel, type) {
+    return "Using discrete channel \"".concat(channel, "\" to encode \"").concat(type, "\" field can be misleading as it does not encode ").concat(type === 'ordinal' ? 'order' : 'magnitude', ".");
+  } // MARK
+
+  function rangeMarkAlignmentCannotBeExpression(align) {
+    return "The ".concat(align, " for range marks cannot be an expression");
+  }
+  function lineWithRange(hasX2, hasY2) {
+    const channels = hasX2 && hasY2 ? 'x2 and y2' : hasX2 ? 'x2' : 'y2';
+    return "Line mark is for continuous lines and thus cannot be used with ".concat(channels, ". We will use the rule mark (line segments) instead.");
+  }
+  function orientOverridden(original, actual) {
+    return "Specified orient \"".concat(original, "\" overridden with \"").concat(actual, "\".");
+  } // SCALE
+  function cannotUseScalePropertyWithNonColor(prop) {
+    return "Cannot use the scale property \"".concat(prop, "\" with non-color channel.");
+  }
+  function cannotUseRelativeBandSizeWithNonBandScale(scaleType) {
+    return "Cannot use the relative band size with ".concat(scaleType, " scale.");
+  }
+  function unaggregateDomainHasNoEffectForRawField(fieldDef) {
+    return "Using unaggregated domain with raw field has no effect (".concat(stringify(fieldDef), ").");
+  }
+  function unaggregateDomainWithNonSharedDomainOp(aggregate) {
+    return "Unaggregated domain not applicable for \"".concat(aggregate, "\" since it produces values outside the origin domain of the source data.");
+  }
+  function unaggregatedDomainWithLogScale(fieldDef) {
+    return "Unaggregated domain is currently unsupported for log scale (".concat(stringify(fieldDef), ").");
+  }
+  function cannotApplySizeToNonOrientedMark(mark) {
+    return "Cannot apply size to non-oriented mark \"".concat(mark, "\".");
+  }
+  function scaleTypeNotWorkWithChannel(channel, scaleType, defaultScaleType) {
+    return "Channel \"".concat(channel, "\" does not work with \"").concat(scaleType, "\" scale. We are using \"").concat(defaultScaleType, "\" scale instead.");
+  }
+  function scaleTypeNotWorkWithFieldDef(scaleType, defaultScaleType) {
+    return "FieldDef does not work with \"".concat(scaleType, "\" scale. We are using \"").concat(defaultScaleType, "\" scale instead.");
+  }
+  function scalePropertyNotWorkWithScaleType(scaleType, propName, channel) {
+    return "".concat(channel, "-scale's \"").concat(propName, "\" is dropped as it does not work with ").concat(scaleType, " scale.");
+  }
+  function stepDropped(channel) {
+    return "The step for \"".concat(channel, "\" is dropped because the ").concat(channel === 'width' ? 'x' : 'y', " is continuous.");
+  }
+  function mergeConflictingProperty(property, propertyOf, v1, v2) {
+    return "Conflicting ".concat(propertyOf.toString(), " property \"").concat(property.toString(), "\" (").concat(stringify(v1), " and ").concat(stringify(v2), "). Using ").concat(stringify(v1), ".");
+  }
+  function mergeConflictingDomainProperty(property, propertyOf, v1, v2) {
+    return "Conflicting ".concat(propertyOf.toString(), " property \"").concat(property.toString(), "\" (").concat(stringify(v1), " and ").concat(stringify(v2), "). Using the union of the two domains.");
+  }
+  function independentScaleMeansIndependentGuide(channel) {
+    return "Setting the scale to be independent for \"".concat(channel, "\" means we also have to set the guide (axis or legend) to be independent.");
+  }
+  function domainSortDropped(sort) {
+    return "Dropping sort property ".concat(stringify(sort), " as unioned domains only support boolean or op \"count\", \"min\", and \"max\".");
+  }
+  const MORE_THAN_ONE_SORT = 'Domains that should be unioned has conflicting sort properties. Sort will be set to true.';
+  const FACETED_INDEPENDENT_DIFFERENT_SOURCES = 'Detected faceted independent scales that union domain of multiple fields from different data sources. We will use the first field. The result view size may be incorrect.';
+  const FACETED_INDEPENDENT_SAME_FIELDS_DIFFERENT_SOURCES = 'Detected faceted independent scales that union domain of the same fields from different source. We will assume that this is the same field from a different fork of the same data source. However, if this is not the case, the result view size may be incorrect.';
+  const FACETED_INDEPENDENT_SAME_SOURCE = 'Detected faceted independent scales that union domain of multiple fields from the same data source. We will use the first field. The result view size may be incorrect.'; // AXIS
+
+  function cannotStackRangedMark(channel) {
+    return "Cannot stack \"".concat(channel, "\" if there is already \"").concat(channel, "2\".");
+  }
+  function cannotStackNonLinearScale(scaleType) {
+    return "Cannot stack non-linear scale (".concat(scaleType, ").");
+  }
+  function stackNonSummativeAggregate(aggregate) {
+    return "Stacking is applied even though the aggregate function is non-summative (\"".concat(aggregate, "\").");
+  } // TIMEUNIT
+
+  function invalidTimeUnit(unitName, value) {
+    return "Invalid ".concat(unitName, ": ").concat(stringify(value), ".");
+  }
+  function droppedDay(d) {
+    return "Dropping day from datetime ".concat(stringify(d), " as day cannot be combined with other units.");
+  }
+  function errorBarCenterAndExtentAreNotNeeded(center, extent) {
+    return "".concat(extent ? 'extent ' : '').concat(extent && center ? 'and ' : '').concat(center ? 'center ' : '').concat(extent && center ? 'are ' : 'is ', "not needed when data are aggregated.");
+  }
+  function errorBarCenterIsUsedWithWrongExtent(center, extent, mark) {
+    return "".concat(center, " is not usually used with ").concat(extent, " for ").concat(mark, ".");
+  }
+  function errorBarContinuousAxisHasCustomizedAggregate(aggregate, compositeMark) {
+    return "Continuous axis should not have customized aggregation function ".concat(aggregate, "; ").concat(compositeMark, " already agregates the axis.");
+  }
+  function errorBand1DNotSupport(property) {
+    return "1D error band does not support ".concat(property, ".");
+  } // CHANNEL
+
+  function channelRequiredForBinned(channel) {
+    return "Channel ".concat(channel, " is required for \"binned\" bin.");
+  }
+  function channelShouldNotBeUsedForBinned(channel) {
+    return "Channel ".concat(channel, " should not be used with \"binned\" bin.");
+  }
+  function domainRequiredForThresholdScale(channel) {
+    return "Domain for ".concat(channel, " is required for threshold scale.");
+  }
+
+  /**
+   * Main (default) Vega Logger instance for Vega-Lite.
+   */
+
+  const main = vega.logger(vega.Warn);
+  let current = main;
+  /**
+   * Set the singleton logger to be a custom logger.
+   */
+
+  function set(newLogger) {
+    current = newLogger;
+    return current;
+  }
+  /**
+   * Reset the main logger to use the default Vega Logger.
+   */
+
+  function reset() {
+    current = main;
+    return current;
+  }
+  function warn() {
+    current.warn(...arguments);
+  }
+  function debug() {
+    current.debug(...arguments);
+  }
+
+  // DateTime definition object
+  /**
+   * @minimum 1
+   * @maximum 12
+   * @TJS-type integer
+   */
+
+  function isDateTime(o) {
+    if (o && vega.isObject(o)) {
+      for (const part of TIMEUNIT_PARTS) {
+        if (part in o) {
+          return true;
+        }
+      }
+    }
+
+    return false;
+  }
+  const MONTHS = ['january', 'february', 'march', 'april', 'may', 'june', 'july', 'august', 'september', 'october', 'november', 'december'];
+  const SHORT_MONTHS = MONTHS.map(m => m.substr(0, 3));
+  const DAYS = ['sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday'];
+  const SHORT_DAYS = DAYS.map(d => d.substr(0, 3));
+
+  function normalizeQuarter(q) {
+    if (isNumeric(q)) {
+      q = +q;
+    }
+
+    if (vega.isNumber(q)) {
+      if (q > 4) {
+        warn(invalidTimeUnit('quarter', q));
+      } // We accept 1-based quarter, so need to readjust to 0-based quarter
+
+
+      return q - 1;
+    } else {
+      // Invalid quarter
+      throw new Error(invalidTimeUnit('quarter', q));
+    }
+  }
+
+  function normalizeMonth(m) {
+    if (isNumeric(m)) {
+      m = +m;
+    }
+
+    if (vega.isNumber(m)) {
+      // We accept 1-based month, so need to readjust to 0-based month
+      return m - 1;
+    } else {
+      const lowerM = m.toLowerCase();
+      const monthIndex = MONTHS.indexOf(lowerM);
+
+      if (monthIndex !== -1) {
+        return monthIndex; // 0 for january, ...
+      }
+
+      const shortM = lowerM.substr(0, 3);
+      const shortMonthIndex = SHORT_MONTHS.indexOf(shortM);
+
+      if (shortMonthIndex !== -1) {
+        return shortMonthIndex;
+      } // Invalid month
+
+
+      throw new Error(invalidTimeUnit('month', m));
+    }
+  }
+
+  function normalizeDay(d) {
+    if (isNumeric(d)) {
+      d = +d;
+    }
+
+    if (vega.isNumber(d)) {
+      // mod so that this can be both 0-based where 0 = sunday
+      // and 1-based where 7=sunday
+      return d % 7;
+    } else {
+      const lowerD = d.toLowerCase();
+      const dayIndex = DAYS.indexOf(lowerD);
+
+      if (dayIndex !== -1) {
+        return dayIndex; // 0 for january, ...
+      }
+
+      const shortD = lowerD.substr(0, 3);
+      const shortDayIndex = SHORT_DAYS.indexOf(shortD);
+
+      if (shortDayIndex !== -1) {
+        return shortDayIndex;
+      } // Invalid day
+
+
+      throw new Error(invalidTimeUnit('day', d));
+    }
+  }
+  /**
+   * @param d the date.
+   * @param normalize whether to normalize quarter, month, day. This should probably be true if d is a DateTime.
+   * @returns array of date time parts [year, month, day, hours, minutes, seconds, milliseconds]
+   */
+
+
+  function dateTimeParts(d, normalize) {
+    const parts = [];
+
+    if (normalize && d.day !== undefined) {
+      if (keys(d).length > 1) {
+        warn(droppedDay(d));
+        d = duplicate(d);
+        delete d.day;
+      }
+    }
+
+    if (d.year !== undefined) {
+      parts.push(d.year);
+    } else {
+      // Just like Vega's timeunit transform, set default year to 2012, so domain conversion will be compatible with Vega
+      // Note: 2012 is a leap year (and so the date February 29 is respected) that begins on a Sunday (and so days of the week will order properly at the beginning of the year).
+      parts.push(2012);
+    }
+
+    if (d.month !== undefined) {
+      const month = normalize ? normalizeMonth(d.month) : d.month;
+      parts.push(month);
+    } else if (d.quarter !== undefined) {
+      const quarter = normalize ? normalizeQuarter(d.quarter) : d.quarter;
+      parts.push(vega.isNumber(quarter) ? quarter * 3 : "".concat(quarter, "*3"));
+    } else {
+      parts.push(0); // months start at zero in JS
+    }
+
+    if (d.date !== undefined) {
+      parts.push(d.date);
+    } else if (d.day !== undefined) {
+      // HACK: Day only works as a standalone unit
+      // This is only correct because we always set year to 2006 for day
+      const day = normalize ? normalizeDay(d.day) : d.day;
+      parts.push(vega.isNumber(day) ? day + 1 : "".concat(day, "+1"));
+    } else {
+      parts.push(1); // Date starts at 1 in JS
+    } // Note: can't use TimeUnit enum here as importing it will create
+    // circular dependency problem!
+
+
+    for (const timeUnit of ['hours', 'minutes', 'seconds', 'milliseconds']) {
+      const unit = d[timeUnit];
+      parts.push(typeof unit === 'undefined' ? 0 : unit);
+    }
+
+    return parts;
+  }
+  /**
+   * Return Vega expression for a date time.
+   *
+   * @param d the date time.
+   * @returns the Vega expression.
+   */
+
+
+  function dateTimeToExpr(d) {
+    const parts = dateTimeParts(d, true);
+    const string = parts.join(', ');
+
+    if (d.utc) {
+      return "utc(".concat(string, ")");
+    } else {
+      return "datetime(".concat(string, ")");
+    }
+  }
+  /**
+   * Return Vega expression for a date time expression.
+   *
+   * @param d the internal date time object with expression.
+   * @returns the Vega expression.
+   */
+
+  function dateTimeExprToExpr(d) {
+    const parts = dateTimeParts(d, false);
+    const string = parts.join(', ');
+
+    if (d.utc) {
+      return "utc(".concat(string, ")");
+    } else {
+      return "datetime(".concat(string, ")");
+    }
+  }
+  /**
+   * @param d the date time.
+   * @returns the timestamp.
+   */
+
+  function dateTimeToTimestamp(d) {
+    const parts = dateTimeParts(d, true);
+
+    if (d.utc) {
+      return +new Date(Date.UTC(...parts));
+    } else {
+      return +new Date(...parts);
+    }
+  }
+
+  /** Time Unit that only corresponds to only one part of Date objects. */
+
+  const LOCAL_SINGLE_TIMEUNIT_INDEX = {
+    year: 1,
+    quarter: 1,
+    month: 1,
+    week: 1,
+    day: 1,
+    dayofyear: 1,
+    date: 1,
+    hours: 1,
+    minutes: 1,
+    seconds: 1,
+    milliseconds: 1
+  };
+  const TIMEUNIT_PARTS = keys(LOCAL_SINGLE_TIMEUNIT_INDEX);
+  function isLocalSingleTimeUnit(timeUnit) {
+    return !!LOCAL_SINGLE_TIMEUNIT_INDEX[timeUnit];
+  }
+  function isUTCTimeUnit(t) {
+    return t.startsWith('utc');
+  }
+  function getLocalTimeUnit(t) {
+    return t.substr(3);
+  }
+  // In order of increasing specificity
+  const VEGALITE_TIMEFORMAT = {
+    'year-month': '%b %Y ',
+    'year-month-date': '%b %d, %Y '
+  };
+  function getTimeUnitParts(timeUnit) {
+    return TIMEUNIT_PARTS.filter(part => containsTimeUnit(timeUnit, part));
+  }
+  /** Returns true if fullTimeUnit contains the timeUnit, false otherwise. */
+
+  function containsTimeUnit(fullTimeUnit, timeUnit) {
+    const index = fullTimeUnit.indexOf(timeUnit);
+
+    if (index < 0) {
+      return false;
+    } // exclude milliseconds
+
+
+    if (index > 0 && timeUnit === 'seconds' && fullTimeUnit.charAt(index - 1) === 'i') {
+      return false;
+    } // exclude dayofyear
+
+
+    if (fullTimeUnit.length > index + 3 && timeUnit === 'day' && fullTimeUnit.charAt(index + 3) === 'o') {
+      return false;
+    }
+
+    if (index > 0 && timeUnit === 'year' && fullTimeUnit.charAt(index - 1) === 'f') {
+      return false;
+    }
+
+    return true;
+  }
+  /**
+   * Returns Vega expression for a given timeUnit and fieldRef
+   */
+
+  function fieldExpr(fullTimeUnit, field) {
+    let {
+      end
+    } = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {
+      end: false
+    };
+    const fieldRef = accessPathWithDatum(field);
+    const utc = isUTCTimeUnit(fullTimeUnit) ? 'utc' : '';
+
+    function func(timeUnit) {
+      if (timeUnit === 'quarter') {
+        // quarter starting at 0 (0,3,6,9).
+        return "(".concat(utc, "quarter(").concat(fieldRef, ")-1)");
+      } else {
+        return "".concat(utc).concat(timeUnit, "(").concat(fieldRef, ")");
+      }
+    }
+
+    let lastTimeUnit;
+    const dateExpr = {};
+
+    for (const part of TIMEUNIT_PARTS) {
+      if (containsTimeUnit(fullTimeUnit, part)) {
+        dateExpr[part] = func(part);
+        lastTimeUnit = part;
+      }
+    }
+
+    if (end) {
+      dateExpr[lastTimeUnit] += '+1';
+    }
+
+    return dateTimeExprToExpr(dateExpr);
+  }
+  function timeUnitSpecifierExpression(timeUnit) {
+    if (!timeUnit) {
+      return undefined;
+    }
+
+    const timeUnitParts = getTimeUnitParts(timeUnit);
+    return "timeUnitSpecifier(".concat(stringify(timeUnitParts), ", ").concat(stringify(VEGALITE_TIMEFORMAT), ")");
+  }
+  /**
+   * Returns the signal expression used for axis labels for a time unit.
+   */
+
+  function formatExpression(timeUnit, field, isUTCScale) {
+    if (!timeUnit) {
+      return undefined;
+    }
+
+    const expr = timeUnitSpecifierExpression(timeUnit); // We only use utcFormat for utc scale
+    // For utc time units, the data is already converted as a part of timeUnit transform.
+    // Thus, utc time units should use timeFormat to avoid shifting the time twice.
+
+    const utc = isUTCScale || isUTCTimeUnit(timeUnit);
+    return "".concat(utc ? 'utc' : 'time', "Format(").concat(field, ", ").concat(expr, ")");
+  }
+  function normalizeTimeUnit(timeUnit) {
+    if (!timeUnit) {
+      return undefined;
+    }
+
+    let params;
+
+    if (vega.isString(timeUnit)) {
+      params = {
+        unit: timeUnit
+      };
+    } else if (vega.isObject(timeUnit)) {
+      params = { ...timeUnit,
+        ...(timeUnit.unit ? {
+          unit: timeUnit.unit
+        } : {})
+      };
+    }
+
+    if (isUTCTimeUnit(params.unit)) {
+      params.utc = true;
+      params.unit = getLocalTimeUnit(params.unit);
+    }
+
+    return params;
+  }
+  function timeUnitToString(tu) {
+    const {
+      utc,
+      ...rest
+    } = normalizeTimeUnit(tu);
+
+    if (rest.unit) {
+      return (utc ? 'utc' : '') + keys(rest).map(p => varName("".concat(p === 'unit' ? '' : "_".concat(p, "_")).concat(rest[p]))).join('');
+    } else {
+      // when maxbins is specified instead of units
+      return (utc ? 'utc' : '') + 'timeunit' + keys(rest).map(p => varName("_".concat(p, "_").concat(rest[p]))).join('');
+    }
+  }
+
+  function isSelectionPredicate(predicate) {
+    return predicate === null || predicate === void 0 ? void 0 : predicate['param'];
+  }
+  function isFieldEqualPredicate(predicate) {
+    return predicate && !!predicate.field && predicate.equal !== undefined;
+  }
+  function isFieldLTPredicate(predicate) {
+    return predicate && !!predicate.field && predicate.lt !== undefined;
+  }
+  function isFieldLTEPredicate(predicate) {
+    return predicate && !!predicate.field && predicate.lte !== undefined;
+  }
+  function isFieldGTPredicate(predicate) {
+    return predicate && !!predicate.field && predicate.gt !== undefined;
+  }
+  function isFieldGTEPredicate(predicate) {
+    return predicate && !!predicate.field && predicate.gte !== undefined;
+  }
+  function isFieldRangePredicate(predicate) {
+    if (predicate !== null && predicate !== void 0 && predicate.field) {
+      if (vega.isArray(predicate.range) && predicate.range.length === 2) {
+        return true;
+      } else if (isSignalRef(predicate.range)) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+  function isFieldOneOfPredicate(predicate) {
+    return predicate && !!predicate.field && (vega.isArray(predicate.oneOf) || vega.isArray(predicate.in)) // backward compatibility
+    ;
+  }
+  function isFieldValidPredicate(predicate) {
+    return predicate && !!predicate.field && predicate.valid !== undefined;
+  }
+  function isFieldPredicate(predicate) {
+    return isFieldOneOfPredicate(predicate) || isFieldEqualPredicate(predicate) || isFieldRangePredicate(predicate) || isFieldLTPredicate(predicate) || isFieldGTPredicate(predicate) || isFieldLTEPredicate(predicate) || isFieldGTEPredicate(predicate);
+  }
+
+  function predicateValueExpr(v, timeUnit) {
+    return valueExpr(v, {
+      timeUnit,
+      wrapTime: true
+    });
+  }
+
+  function predicateValuesExpr(vals, timeUnit) {
+    return vals.map(v => predicateValueExpr(v, timeUnit));
+  } // This method is used by Voyager. Do not change its behavior without changing Voyager.
+
+
+  function fieldFilterExpression(predicate) {
+    var _normalizeTimeUnit;
+
+    let useInRange = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
+    const {
+      field
+    } = predicate;
+    const timeUnit = (_normalizeTimeUnit = normalizeTimeUnit(predicate.timeUnit)) === null || _normalizeTimeUnit === void 0 ? void 0 : _normalizeTimeUnit.unit;
+    const fieldExpr$1 = timeUnit ? // For timeUnit, cast into integer with time() so we can use ===, inrange, indexOf to compare values directly.
+    // TODO: We calculate timeUnit on the fly here. Consider if we would like to consolidate this with timeUnit pipeline
+    // TODO: support utc
+    "time(".concat(fieldExpr(timeUnit, field), ")") : vgField(predicate, {
+      expr: 'datum'
+    });
+
+    if (isFieldEqualPredicate(predicate)) {
+      return "".concat(fieldExpr$1, "===").concat(predicateValueExpr(predicate.equal, timeUnit));
+    } else if (isFieldLTPredicate(predicate)) {
+      const upper = predicate.lt;
+      return "".concat(fieldExpr$1, "<").concat(predicateValueExpr(upper, timeUnit));
+    } else if (isFieldGTPredicate(predicate)) {
+      const lower = predicate.gt;
+      return "".concat(fieldExpr$1, ">").concat(predicateValueExpr(lower, timeUnit));
+    } else if (isFieldLTEPredicate(predicate)) {
+      const upper = predicate.lte;
+      return "".concat(fieldExpr$1, "<=").concat(predicateValueExpr(upper, timeUnit));
+    } else if (isFieldGTEPredicate(predicate)) {
+      const lower = predicate.gte;
+      return "".concat(fieldExpr$1, ">=").concat(predicateValueExpr(lower, timeUnit));
+    } else if (isFieldOneOfPredicate(predicate)) {
+      return "indexof([".concat(predicateValuesExpr(predicate.oneOf, timeUnit).join(','), "], ").concat(fieldExpr$1, ") !== -1");
+    } else if (isFieldValidPredicate(predicate)) {
+      return fieldValidPredicate(fieldExpr$1, predicate.valid);
+    } else if (isFieldRangePredicate(predicate)) {
+      const {
+        range
+      } = predicate;
+      const lower = isSignalRef(range) ? {
+        signal: "".concat(range.signal, "[0]")
+      } : range[0];
+      const upper = isSignalRef(range) ? {
+        signal: "".concat(range.signal, "[1]")
+      } : range[1];
+
+      if (lower !== null && upper !== null && useInRange) {
+        return 'inrange(' + fieldExpr$1 + ', [' + predicateValueExpr(lower, timeUnit) + ', ' + predicateValueExpr(upper, timeUnit) + '])';
+      }
+
+      const exprs = [];
+
+      if (lower !== null) {
+        exprs.push("".concat(fieldExpr$1, " >= ").concat(predicateValueExpr(lower, timeUnit)));
+      }
+
+      if (upper !== null) {
+        exprs.push("".concat(fieldExpr$1, " <= ").concat(predicateValueExpr(upper, timeUnit)));
+      }
+
+      return exprs.length > 0 ? exprs.join(' && ') : 'true';
+    }
+    /* istanbul ignore next: it should never reach here */
+
+
+    throw new Error("Invalid field predicate: ".concat(stringify(predicate)));
+  }
+  function fieldValidPredicate(fieldExpr) {
+    let valid = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
+
+    if (valid) {
+      return "isValid(".concat(fieldExpr, ") && isFinite(+").concat(fieldExpr, ")");
+    } else {
+      return "!isValid(".concat(fieldExpr, ") || !isFinite(+").concat(fieldExpr, ")");
+    }
+  }
+  function normalizePredicate$1(f) {
+    if (isFieldPredicate(f) && f.timeUnit) {
+      var _normalizeTimeUnit2;
+
+      return { ...f,
+        timeUnit: (_normalizeTimeUnit2 = normalizeTimeUnit(f.timeUnit)) === null || _normalizeTimeUnit2 === void 0 ? void 0 : _normalizeTimeUnit2.unit
+      };
+    }
+
+    return f;
+  }
+
+  /**
+   * Data type based on level of measurement
+   */
+
+  const Type = {
+    quantitative: 'quantitative',
+    ordinal: 'ordinal',
+    temporal: 'temporal',
+    nominal: 'nominal',
+    geojson: 'geojson'
+  };
+  function isContinuous(type) {
+    return type === 'quantitative' || type === 'temporal';
+  }
+  function isDiscrete$1(type) {
+    return type === 'ordinal' || type === 'nominal';
+  }
+  const QUANTITATIVE = Type.quantitative;
+  const ORDINAL = Type.ordinal;
+  const TEMPORAL = Type.temporal;
+  const NOMINAL = Type.nominal;
+  const GEOJSON = Type.geojson;
+  /**
+   * Get full, lowercase type name for a given type.
+   * @param  type
+   * @return Full type name.
+   */
+
+  function getFullName(type) {
+    if (type) {
+      type = type.toLowerCase();
+
+      switch (type) {
+        case 'q':
+        case QUANTITATIVE:
+          return 'quantitative';
+
+        case 't':
+        case TEMPORAL:
+          return 'temporal';
+
+        case 'o':
+        case ORDINAL:
+          return 'ordinal';
+
+        case 'n':
+        case NOMINAL:
+          return 'nominal';
+
+        case GEOJSON:
+          return 'geojson';
+      }
+    } // If we get invalid input, return undefined type.
+
+
+    return undefined;
+  }
+
+  const ScaleType = {
+    // Continuous - Quantitative
+    LINEAR: 'linear',
+    LOG: 'log',
+    POW: 'pow',
+    SQRT: 'sqrt',
+    SYMLOG: 'symlog',
+    IDENTITY: 'identity',
+    SEQUENTIAL: 'sequential',
+    // Continuous - Time
+    TIME: 'time',
+    UTC: 'utc',
+    // Discretizing scales
+    QUANTILE: 'quantile',
+    QUANTIZE: 'quantize',
+    THRESHOLD: 'threshold',
+    BIN_ORDINAL: 'bin-ordinal',
+    // Discrete scales
+    ORDINAL: 'ordinal',
+    POINT: 'point',
+    BAND: 'band'
+  };
+
+  /**
+   * Index for scale categories -- only scale of the same categories can be merged together.
+   * Current implementation is trying to be conservative and avoid merging scale type that might not work together
+   */
+  const SCALE_CATEGORY_INDEX = {
+    linear: 'numeric',
+    log: 'numeric',
+    pow: 'numeric',
+    sqrt: 'numeric',
+    symlog: 'numeric',
+    identity: 'numeric',
+    sequential: 'numeric',
+    time: 'time',
+    utc: 'time',
+    ordinal: 'ordinal',
+    'bin-ordinal': 'bin-ordinal',
+    // TODO: should bin-ordinal support merging with other
+    point: 'ordinal-position',
+    band: 'ordinal-position',
+    quantile: 'discretizing',
+    quantize: 'discretizing',
+    threshold: 'discretizing'
+  };
+  /**
+   * Whether the two given scale types can be merged together.
+   */
+
+  function scaleCompatible(scaleType1, scaleType2) {
+    const scaleCategory1 = SCALE_CATEGORY_INDEX[scaleType1];
+    const scaleCategory2 = SCALE_CATEGORY_INDEX[scaleType2];
+    return scaleCategory1 === scaleCategory2 || scaleCategory1 === 'ordinal-position' && scaleCategory2 === 'time' || scaleCategory2 === 'ordinal-position' && scaleCategory1 === 'time';
+  }
+  /**
+   * Index for scale precedence -- high score = higher priority for merging.
+   */
+
+  const SCALE_PRECEDENCE_INDEX = {
+    // numeric
+    linear: 0,
+    log: 1,
+    pow: 1,
+    sqrt: 1,
+    symlog: 1,
+    identity: 1,
+    sequential: 1,
+    // time
+    time: 0,
+    utc: 0,
+    // ordinal-position -- these have higher precedence than continuous scales as they support more types of data
+    point: 10,
+    band: 11,
+    // band has higher precedence as it is better for interaction
+    // non grouped types
+    ordinal: 0,
+    'bin-ordinal': 0,
+    quantile: 0,
+    quantize: 0,
+    threshold: 0
+  };
+  /**
+   * Return scale categories -- only scale of the same categories can be merged together.
+   */
+
+  function scaleTypePrecedence(scaleType) {
+    return SCALE_PRECEDENCE_INDEX[scaleType];
+  }
+  const QUANTITATIVE_SCALES = new Set(['linear', 'log', 'pow', 'sqrt', 'symlog']);
+  const CONTINUOUS_TO_CONTINUOUS_SCALES = new Set([...QUANTITATIVE_SCALES, 'time', 'utc']);
+  function isQuantitative(type) {
+    return QUANTITATIVE_SCALES.has(type);
+  }
+  const CONTINUOUS_TO_DISCRETE_SCALES = new Set(['quantile', 'quantize', 'threshold']);
+  const CONTINUOUS_DOMAIN_SCALES = new Set([...CONTINUOUS_TO_CONTINUOUS_SCALES, ...CONTINUOUS_TO_DISCRETE_SCALES, 'sequential', 'identity']);
+  const DISCRETE_DOMAIN_SCALES = new Set(['ordinal', 'bin-ordinal', 'point', 'band']);
+  function hasDiscreteDomain(type) {
+    return DISCRETE_DOMAIN_SCALES.has(type);
+  }
+  function hasContinuousDomain(type) {
+    return CONTINUOUS_DOMAIN_SCALES.has(type);
+  }
+  function isContinuousToContinuous(type) {
+    return CONTINUOUS_TO_CONTINUOUS_SCALES.has(type);
+  }
+  function isContinuousToDiscrete(type) {
+    return CONTINUOUS_TO_DISCRETE_SCALES.has(type);
+  }
+  const defaultScaleConfig = {
+    pointPadding: 0.5,
+    barBandPaddingInner: 0.1,
+    rectBandPaddingInner: 0,
+    bandWithNestedOffsetPaddingInner: 0.2,
+    bandWithNestedOffsetPaddingOuter: 0.2,
+    minBandSize: 2,
+    minFontSize: 8,
+    maxFontSize: 40,
+    minOpacity: 0.3,
+    maxOpacity: 0.8,
+    // FIXME: revise if these *can* become ratios of width/height step
+    minSize: 9,
+    // Point size is area. For square point, 9 = 3 pixel ^ 2, not too small!
+    minStrokeWidth: 1,
+    maxStrokeWidth: 4,
+    quantileCount: 4,
+    quantizeCount: 4
+  };
+  function isExtendedScheme(scheme) {
+    return !vega.isString(scheme) && !!scheme['name'];
+  }
+  function isParameterDomain(domain) {
+    return domain === null || domain === void 0 ? void 0 : domain['param'];
+  }
+  function isDomainUnionWith(domain) {
+    return domain && domain['unionWith'];
+  }
+  function isFieldRange(range) {
+    return vega.isObject(range) && 'field' in range;
+  }
+  const SCALE_PROPERTY_INDEX = {
+    type: 1,
+    domain: 1,
+    domainMax: 1,
+    domainMin: 1,
+    domainMid: 1,
+    align: 1,
+    range: 1,
+    rangeMax: 1,
+    rangeMin: 1,
+    scheme: 1,
+    bins: 1,
+    // Other properties
+    reverse: 1,
+    round: 1,
+    // quantitative / time
+    clamp: 1,
+    nice: 1,
+    // quantitative
+    base: 1,
+    exponent: 1,
+    constant: 1,
+    interpolate: 1,
+    zero: 1,
+    // zero depends on domain
+    // band/point
+    padding: 1,
+    paddingInner: 1,
+    paddingOuter: 1
+  };
+  const {
+    type,
+    domain: domain$1,
+    range,
+    rangeMax,
+    rangeMin,
+    scheme,
+    ...NON_TYPE_DOMAIN_RANGE_VEGA_SCALE_PROPERTY_INDEX
+  } = SCALE_PROPERTY_INDEX;
+  const NON_TYPE_DOMAIN_RANGE_VEGA_SCALE_PROPERTIES = keys(NON_TYPE_DOMAIN_RANGE_VEGA_SCALE_PROPERTY_INDEX);
+  function scaleTypeSupportProperty(scaleType, propName) {
+    switch (propName) {
+      case 'type':
+      case 'domain':
+      case 'reverse':
+      case 'range':
+        return true;
+
+      case 'scheme':
+      case 'interpolate':
+        return !['point', 'band', 'identity'].includes(scaleType);
+
+      case 'bins':
+        return !['point', 'band', 'identity', 'ordinal'].includes(scaleType);
+
+      case 'round':
+        return isContinuousToContinuous(scaleType) || scaleType === 'band' || scaleType === 'point';
+
+      case 'padding':
+      case 'rangeMin':
+      case 'rangeMax':
+        return isContinuousToContinuous(scaleType) || ['point', 'band'].includes(scaleType);
+
+      case 'paddingOuter':
+      case 'align':
+        return ['point', 'band'].includes(scaleType);
+
+      case 'paddingInner':
+        return scaleType === 'band';
+
+      case 'domainMax':
+      case 'domainMid':
+      case 'domainMin':
+      case 'clamp':
+        return isContinuousToContinuous(scaleType);
+
+      case 'nice':
+        return isContinuousToContinuous(scaleType) || scaleType === 'quantize' || scaleType === 'threshold';
+
+      case 'exponent':
+        return scaleType === 'pow';
+
+      case 'base':
+        return scaleType === 'log';
+
+      case 'constant':
+        return scaleType === 'symlog';
+
+      case 'zero':
+        return hasContinuousDomain(scaleType) && !contains(['log', // log scale cannot have zero value
+        'time', 'utc', // zero is not meaningful for time
+        'threshold', // threshold requires custom domain so zero does not matter
+        'quantile' // quantile depends on distribution so zero does not matter
+        ], scaleType);
+    }
+  }
+  /**
+   * Returns undefined if the input channel supports the input scale property name
+   */
+
+  function channelScalePropertyIncompatability(channel, propName) {
+    switch (propName) {
+      case 'interpolate':
+      case 'scheme':
+      case 'domainMid':
+        if (!isColorChannel(channel)) {
+          return cannotUseScalePropertyWithNonColor(channel);
+        }
+
+        return undefined;
+
+      case 'align':
+      case 'type':
+      case 'bins':
+      case 'domain':
+      case 'domainMax':
+      case 'domainMin':
+      case 'range':
+      case 'base':
+      case 'exponent':
+      case 'constant':
+      case 'nice':
+      case 'padding':
+      case 'paddingInner':
+      case 'paddingOuter':
+      case 'rangeMax':
+      case 'rangeMin':
+      case 'reverse':
+      case 'round':
+      case 'clamp':
+      case 'zero':
+        return undefined;
+      // GOOD!
+    }
+  }
+  function scaleTypeSupportDataType(specifiedType, fieldDefType) {
+    if (contains([ORDINAL, NOMINAL], fieldDefType)) {
+      return specifiedType === undefined || hasDiscreteDomain(specifiedType);
+    } else if (fieldDefType === TEMPORAL) {
+      return contains([ScaleType.TIME, ScaleType.UTC, undefined], specifiedType);
+    } else if (fieldDefType === QUANTITATIVE) {
+      return isQuantitative(specifiedType) || isContinuousToDiscrete(specifiedType) || specifiedType === undefined;
+    }
+
+    return true;
+  }
+  function channelSupportScaleType(channel, scaleType) {
+    let hasNestedOffsetScale = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
+
+    if (!isScaleChannel(channel)) {
+      return false;
+    }
+
+    switch (channel) {
+      case X:
+      case Y:
+      case XOFFSET:
+      case YOFFSET:
+      case THETA:
+      case RADIUS:
+        if (isContinuousToContinuous(scaleType)) {
+          return true;
+        } else if (scaleType === 'band') {
+          return true;
+        } else if (scaleType === 'point') {
+          /*
+            Point scale can't be use if the position has a nested offset scale
+            because if there is a nested scale, then it's band.
+          */
+          return !hasNestedOffsetScale;
+        }
+
+        return false;
+
+      case SIZE: // TODO: size and opacity can support ordinal with more modification
+
+      case STROKEWIDTH:
+      case OPACITY:
+      case FILLOPACITY:
+      case STROKEOPACITY:
+      case ANGLE:
+        // Although it generally doesn't make sense to use band with size and opacity,
+        // it can also work since we use band: 0.5 to get midpoint.
+        return isContinuousToContinuous(scaleType) || isContinuousToDiscrete(scaleType) || contains(['band', 'point', 'ordinal'], scaleType);
+
+      case COLOR:
+      case FILL:
+      case STROKE:
+        return scaleType !== 'band';
+      // band does not make sense with color
+
+      case STROKEDASH:
+      case SHAPE:
+        return scaleType === 'ordinal' || isContinuousToDiscrete(scaleType);
+    }
+  }
+
+  /**
+   * All types of primitive marks.
+   */
+  const Mark = {
+    arc: 'arc',
+    area: 'area',
+    bar: 'bar',
+    image: 'image',
+    line: 'line',
+    point: 'point',
+    rect: 'rect',
+    rule: 'rule',
+    text: 'text',
+    tick: 'tick',
+    trail: 'trail',
+    circle: 'circle',
+    square: 'square',
+    geoshape: 'geoshape'
+  };
+  const ARC = Mark.arc;
+  const AREA = Mark.area;
+  const BAR = Mark.bar;
+  const IMAGE = Mark.image;
+  const LINE = Mark.line;
+  const POINT = Mark.point;
+  const RECT = Mark.rect;
+  const RULE = Mark.rule;
+  const TEXT = Mark.text;
+  const TICK = Mark.tick;
+  const TRAIL = Mark.trail;
+  const CIRCLE = Mark.circle;
+  const SQUARE = Mark.square;
+  const GEOSHAPE = Mark.geoshape;
+  function isPathMark(m) {
+    return ['line', 'area', 'trail'].includes(m);
+  }
+  function isRectBasedMark(m) {
+    return ['rect', 'bar', 'image', 'arc'
+    /* arc is rect/interval in polar coordinate */
+    ].includes(m);
+  }
+  const PRIMITIVE_MARKS = new Set(keys(Mark));
+  function isMarkDef(mark) {
+    return mark['type'];
+  }
+  const STROKE_CONFIG = ['stroke', 'strokeWidth', 'strokeDash', 'strokeDashOffset', 'strokeOpacity', 'strokeJoin', 'strokeMiterLimit'];
+  const FILL_CONFIG = ['fill', 'fillOpacity'];
+  const FILL_STROKE_CONFIG = [...STROKE_CONFIG, ...FILL_CONFIG];
+  const VL_ONLY_MARK_CONFIG_INDEX = {
+    color: 1,
+    filled: 1,
+    invalid: 1,
+    order: 1,
+    radius2: 1,
+    theta2: 1,
+    timeUnitBandSize: 1,
+    timeUnitBandPosition: 1
+  };
+  const VL_ONLY_MARK_CONFIG_PROPERTIES = keys(VL_ONLY_MARK_CONFIG_INDEX);
+  const VL_ONLY_MARK_SPECIFIC_CONFIG_PROPERTY_INDEX = {
+    area: ['line', 'point'],
+    bar: ['binSpacing', 'continuousBandSize', 'discreteBandSize'],
+    rect: ['binSpacing', 'continuousBandSize', 'discreteBandSize'],
+    line: ['point'],
+    tick: ['bandSize', 'thickness']
+  };
+  const defaultMarkConfig = {
+    color: '#4c78a8',
+    invalid: 'filter',
+    timeUnitBandSize: 1
+  }; // TODO: replace with MarkConfigMixins[Mark] once https://github.com/vega/ts-json-schema-generator/issues/344 is fixed
+
+  const MARK_CONFIG_INDEX = {
+    mark: 1,
+    arc: 1,
+    area: 1,
+    bar: 1,
+    circle: 1,
+    image: 1,
+    line: 1,
+    point: 1,
+    rect: 1,
+    rule: 1,
+    square: 1,
+    text: 1,
+    tick: 1,
+    trail: 1,
+    geoshape: 1
+  };
+  const MARK_CONFIGS = keys(MARK_CONFIG_INDEX);
+  function isRelativeBandSize(o) {
+    return o && o['band'] != undefined;
+  }
+  const BAR_CORNER_RADIUS_INDEX = {
+    horizontal: ['cornerRadiusTopRight', 'cornerRadiusBottomRight'],
+    vertical: ['cornerRadiusTopLeft', 'cornerRadiusTopRight']
+  };
+  const DEFAULT_RECT_BAND_SIZE = 5;
+  const defaultBarConfig = {
+    binSpacing: 1,
+    continuousBandSize: DEFAULT_RECT_BAND_SIZE,
+    timeUnitBandPosition: 0.5
+  };
+  const defaultRectConfig = {
+    binSpacing: 0,
+    continuousBandSize: DEFAULT_RECT_BAND_SIZE,
+    timeUnitBandPosition: 0.5
+  };
+  const defaultTickConfig = {
+    thickness: 1
+  };
+  function getMarkType(m) {
+    return isMarkDef(m) ? m.type : m;
+  }
+
+  /**
+   * Utility files for producing Vega ValueRef for marks
+   */
+  function midPointRefWithPositionInvalidTest(params) {
+    const {
+      channel,
+      channelDef,
+      markDef,
+      scale,
+      config
+    } = params;
+    const ref = midPoint(params); // Wrap to check if the positional value is invalid, if so, plot the point on the min value
+
+    if ( // Only this for field def without counting aggregate (as count wouldn't be null)
+    isFieldDef(channelDef) && !isCountingAggregateOp(channelDef.aggregate) && // and only for continuous scale
+    scale && isContinuousToContinuous(scale.get('type'))) {
+      return wrapPositionInvalidTest({
+        fieldDef: channelDef,
+        channel,
+        markDef,
+        ref,
+        config
+      });
+    }
+
+    return ref;
+  }
+  function wrapPositionInvalidTest(_ref) {
+    let {
+      fieldDef,
+      channel,
+      markDef,
+      ref,
+      config
+    } = _ref;
+
+    if (isPathMark(markDef.type)) {
+      // path mark already use defined to skip points, no need to do it here.
+      return ref;
+    }
+
+    const invalid = getMarkPropOrConfig('invalid', markDef, config);
+
+    if (invalid === null) {
+      // if there is no invalid filter, don't do the invalid test
+      return [fieldInvalidTestValueRef(fieldDef, channel), ref];
+    }
+
+    return ref;
+  }
+  function fieldInvalidTestValueRef(fieldDef, channel) {
+    const test = fieldInvalidPredicate(fieldDef, true);
+    const mainChannel = getMainRangeChannel(channel); // we can cast here as the output can't be other things.
+
+    const zeroValueRef = mainChannel === 'y' ? {
+      field: {
+        group: 'height'
+      }
+    } : // x / angle / radius can all use 0
+    {
+      value: 0
+    };
+    return {
+      test,
+      ...zeroValueRef
+    };
+  }
+  function fieldInvalidPredicate(field) {
+    let invalid = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
+    return fieldValidPredicate(vega.isString(field) ? field : vgField(field, {
+      expr: 'datum'
+    }), !invalid);
+  }
+  function datumDefToExpr(datumDef) {
+    const {
+      datum
+    } = datumDef;
+
+    if (isDateTime(datum)) {
+      return dateTimeToExpr(datum);
+    }
+
+    return "".concat(stringify(datum));
+  }
+  function valueRefForFieldOrDatumDef(fieldDef, scaleName, opt, encode) {
+    const ref = {};
+
+    if (scaleName) {
+      ref.scale = scaleName;
+    }
+
+    if (isDatumDef(fieldDef)) {
+      const {
+        datum
+      } = fieldDef;
+
+      if (isDateTime(datum)) {
+        ref.signal = dateTimeToExpr(datum);
+      } else if (isSignalRef(datum)) {
+        ref.signal = datum.signal;
+      } else if (isExprRef(datum)) {
+        ref.signal = datum.expr;
+      } else {
+        ref.value = datum;
+      }
+    } else {
+      ref.field = vgField(fieldDef, opt);
+    }
+
+    if (encode) {
+      const {
+        offset,
+        band
+      } = encode;
+
+      if (offset) {
+        ref.offset = offset;
+      }
+
+      if (band) {
+        ref.band = band;
+      }
+    }
+
+    return ref;
+  }
+  /**
+   * Signal that returns the middle of a bin from start and end field. Should only be used with x and y.
+   */
+
+  function interpolatedSignalRef(_ref2) {
+    let {
+      scaleName,
+      fieldOrDatumDef,
+      fieldOrDatumDef2,
+      offset,
+      startSuffix,
+      bandPosition = 0.5
+    } = _ref2;
+    const expr = 0 < bandPosition && bandPosition < 1 ? 'datum' : undefined;
+    const start = vgField(fieldOrDatumDef, {
+      expr,
+      suffix: startSuffix
+    });
+    const end = fieldOrDatumDef2 !== undefined ? vgField(fieldOrDatumDef2, {
+      expr
+    }) : vgField(fieldOrDatumDef, {
+      suffix: 'end',
+      expr
+    });
+    const ref = {};
+
+    if (bandPosition === 0 || bandPosition === 1) {
+      ref.scale = scaleName;
+      const val = bandPosition === 0 ? start : end;
+      ref.field = val;
+    } else {
+      const datum = isSignalRef(bandPosition) ? "".concat(bandPosition.signal, " * ").concat(start, " + (1-").concat(bandPosition.signal, ") * ").concat(end) : "".concat(bandPosition, " * ").concat(start, " + ").concat(1 - bandPosition, " * ").concat(end);
+      ref.signal = "scale(\"".concat(scaleName, "\", ").concat(datum, ")");
+    }
+
+    if (offset) {
+      ref.offset = offset;
+    }
+
+    return ref;
+  }
+
+  /**
+   * @returns {VgValueRef} Value Ref for xc / yc or mid point for other channels.
+   */
+  function midPoint(_ref3) {
+    let {
+      channel,
+      channelDef,
+      channel2Def,
+      markDef,
+      config,
+      scaleName,
+      scale,
+      stack,
+      offset,
+      defaultRef,
+      bandPosition
+    } = _ref3;
+
+    // TODO: datum support
+    if (channelDef) {
+      /* istanbul ignore else */
+      if (isFieldOrDatumDef(channelDef)) {
+        var _ref4, _bandPosition2;
+
+        const scaleType = scale === null || scale === void 0 ? void 0 : scale.get('type');
+
+        if (isTypedFieldDef(channelDef)) {
+          var _bandPosition;
+
+          (_bandPosition = bandPosition) !== null && _bandPosition !== void 0 ? _bandPosition : bandPosition = getBandPosition({
+            fieldDef: channelDef,
+            fieldDef2: channel2Def,
+            markDef,
+            config
+          });
+          const {
+            bin,
+            timeUnit,
+            type
+          } = channelDef;
+
+          if (isBinning(bin) || bandPosition && timeUnit && type === TEMPORAL) {
+            // Use middle only for x an y to place marks in the center between start and end of the bin range.
+            // We do not use the mid point for other channels (e.g. size) so that properties of legends and marks match.
+            if (stack !== null && stack !== void 0 && stack.impute) {
+              // For stack, we computed bin_mid so we can impute.
+              return valueRefForFieldOrDatumDef(channelDef, scaleName, {
+                binSuffix: 'mid'
+              }, {
+                offset
+              });
+            }
+
+            if (bandPosition && !hasDiscreteDomain(scaleType)) {
+              // if band = 0, no need to call interpolation
+              // For non-stack, we can just calculate bin mid on the fly using signal.
+              return interpolatedSignalRef({
+                scaleName,
+                fieldOrDatumDef: channelDef,
+                bandPosition,
+                offset
+              });
+            }
+
+            return valueRefForFieldOrDatumDef(channelDef, scaleName, binRequiresRange(channelDef, channel) ? {
+              binSuffix: 'range'
+            } : {}, {
+              offset
+            });
+          } else if (isBinned(bin)) {
+            if (isFieldDef(channel2Def)) {
+              return interpolatedSignalRef({
+                scaleName,
+                fieldOrDatumDef: channelDef,
+                fieldOrDatumDef2: channel2Def,
+                bandPosition,
+                offset
+              });
+            } else {
+              const channel2 = channel === X ? X2 : Y2;
+              warn(channelRequiredForBinned(channel2));
+            }
+          }
+        }
+
+        return valueRefForFieldOrDatumDef(channelDef, scaleName, hasDiscreteDomain(scaleType) ? {
+          binSuffix: 'range'
+        } : {}, // no need for bin suffix if there is no scale
+        {
+          offset,
+          // For band, to get mid point, need to offset by half of the band
+          band: scaleType === 'band' ? (_ref4 = (_bandPosition2 = bandPosition) !== null && _bandPosition2 !== void 0 ? _bandPosition2 : channelDef.bandPosition) !== null && _ref4 !== void 0 ? _ref4 : 0.5 : undefined
+        });
+      } else if (isValueDef(channelDef)) {
+        const value = channelDef.value;
+        const offsetMixins = offset ? {
+          offset
+        } : {};
+        return { ...widthHeightValueOrSignalRef(channel, value),
+          ...offsetMixins
+        };
+      } // If channelDef is neither field def or value def, it's a condition-only def.
+      // In such case, we will use default ref.
+
+    }
+
+    if (vega.isFunction(defaultRef)) {
+      defaultRef = defaultRef();
+    }
+
+    if (defaultRef) {
+      // for non-position, ref could be undefined.
+      return { ...defaultRef,
+        // only include offset when it is non-zero (zero = no offset)
+        ...(offset ? {
+          offset
+        } : {})
+      };
+    }
+
+    return defaultRef;
+  }
+  /**
+   * Convert special "width" and "height" values in Vega-Lite into Vega value ref.
+   */
+
+  function widthHeightValueOrSignalRef(channel, value) {
+    if (contains(['x', 'x2'], channel) && value === 'width') {
+      return {
+        field: {
+          group: 'width'
+        }
+      };
+    } else if (contains(['y', 'y2'], channel) && value === 'height') {
+      return {
+        field: {
+          group: 'height'
+        }
+      };
+    }
+
+    return signalOrValueRef(value);
+  }
+
+  function isCustomFormatType(formatType) {
+    return formatType && formatType !== 'number' && formatType !== 'time';
+  }
+
+  function customFormatExpr(formatType, field, format) {
+    return "".concat(formatType, "(").concat(field).concat(format ? ", ".concat(stringify(format)) : '', ")");
+  }
+
+  const BIN_RANGE_DELIMITER = ' \u2013 ';
+  function formatSignalRef(_ref) {
+    let {
+      fieldOrDatumDef,
+      format,
+      formatType,
+      expr,
+      normalizeStack,
+      config
+    } = _ref;
+
+    if (isCustomFormatType(formatType)) {
+      return formatCustomType({
+        fieldOrDatumDef,
+        format,
+        formatType,
+        expr,
+        config
+      });
+    }
+
+    const field = fieldToFormat(fieldOrDatumDef, expr, normalizeStack);
+
+    if (isFieldOrDatumDefForTimeFormat(fieldOrDatumDef)) {
+      var _normalizeTimeUnit, _fieldOrDatumDef$scal;
+
+      const signal = timeFormatExpression(field, isFieldDef(fieldOrDatumDef) ? (_normalizeTimeUnit = normalizeTimeUnit(fieldOrDatumDef.timeUnit)) === null || _normalizeTimeUnit === void 0 ? void 0 : _normalizeTimeUnit.unit : undefined, format, config.timeFormat, isScaleFieldDef(fieldOrDatumDef) && ((_fieldOrDatumDef$scal = fieldOrDatumDef.scale) === null || _fieldOrDatumDef$scal === void 0 ? void 0 : _fieldOrDatumDef$scal.type) === ScaleType.UTC);
+      return signal ? {
+        signal
+      } : undefined;
+    }
+
+    format = numberFormat(channelDefType(fieldOrDatumDef), format, config);
+
+    if (isFieldDef(fieldOrDatumDef) && isBinning(fieldOrDatumDef.bin)) {
+      const endField = vgField(fieldOrDatumDef, {
+        expr,
+        binSuffix: 'end'
+      });
+      return {
+        signal: binFormatExpression(field, endField, format, formatType, config)
+      };
+    } else if (format || channelDefType(fieldOrDatumDef) === 'quantitative') {
+      return {
+        signal: "".concat(formatExpr(field, format))
+      };
+    } else {
+      return {
+        signal: "isValid(".concat(field, ") ? ").concat(field, " : \"\"+").concat(field)
+      };
+    }
+  }
+
+  function fieldToFormat(fieldOrDatumDef, expr, normalizeStack) {
+    if (isFieldDef(fieldOrDatumDef)) {
+      if (normalizeStack) {
+        return "".concat(vgField(fieldOrDatumDef, {
+          expr,
+          suffix: 'end'
+        }), "-").concat(vgField(fieldOrDatumDef, {
+          expr,
+          suffix: 'start'
+        }));
+      } else {
+        return vgField(fieldOrDatumDef, {
+          expr
+        });
+      }
+    } else {
+      return datumDefToExpr(fieldOrDatumDef);
+    }
+  }
+
+  function formatCustomType(_ref2) {
+    var _field;
+
+    let {
+      fieldOrDatumDef,
+      format,
+      formatType,
+      expr,
+      normalizeStack,
+      config,
+      field
+    } = _ref2;
+    (_field = field) !== null && _field !== void 0 ? _field : field = fieldToFormat(fieldOrDatumDef, expr, normalizeStack);
+
+    if (isFieldDef(fieldOrDatumDef) && isBinning(fieldOrDatumDef.bin)) {
+      const endField = vgField(fieldOrDatumDef, {
+        expr,
+        binSuffix: 'end'
+      });
+      return {
+        signal: binFormatExpression(field, endField, format, formatType, config)
+      };
+    }
+
+    return {
+      signal: customFormatExpr(formatType, field, format)
+    };
+  }
+  function guideFormat(fieldOrDatumDef, type, format, formatType, config, omitTimeFormatConfig) {
+    if (isCustomFormatType(formatType)) {
+      return undefined; // handled in encode block
+    }
+
+    if (isFieldOrDatumDefForTimeFormat(fieldOrDatumDef)) {
+      var _normalizeTimeUnit2;
+
+      const timeUnit = isFieldDef(fieldOrDatumDef) ? (_normalizeTimeUnit2 = normalizeTimeUnit(fieldOrDatumDef.timeUnit)) === null || _normalizeTimeUnit2 === void 0 ? void 0 : _normalizeTimeUnit2.unit : undefined;
+      return timeFormat(format, timeUnit, config, omitTimeFormatConfig);
+    }
+
+    return numberFormat(type, format, config);
+  }
+  function guideFormatType(formatType, fieldOrDatumDef, scaleType) {
+    if (formatType && (isSignalRef(formatType) || formatType === 'number' || formatType === 'time')) {
+      return formatType;
+    }
+
+    if (isFieldOrDatumDefForTimeFormat(fieldOrDatumDef) && scaleType !== 'time' && scaleType !== 'utc') {
+      return 'time';
+    }
+
+    return undefined;
+  }
+  /**
+   * Returns number format for a fieldDef.
+   */
+
+  function numberFormat(type, specifiedFormat, config) {
+    // Specified format in axis/legend has higher precedence than fieldDef.format
+    if (vega.isString(specifiedFormat)) {
+      return specifiedFormat;
+    }
+
+    if (type === QUANTITATIVE) {
+      // we only apply the default if the field is quantitative
+      return config.numberFormat;
+    }
+
+    return undefined;
+  }
+  /**
+   * Returns time format for a fieldDef for use in guides.
+   */
+
+  function timeFormat(specifiedFormat, timeUnit, config, omitTimeFormatConfig) {
+    if (specifiedFormat) {
+      return specifiedFormat;
+    }
+
+    if (timeUnit) {
+      return {
+        signal: timeUnitSpecifierExpression(timeUnit)
+      };
+    }
+
+    return omitTimeFormatConfig ? undefined : config.timeFormat;
+  }
+
+  function formatExpr(field, format) {
+    return "format(".concat(field, ", \"").concat(format || '', "\")");
+  }
+
+  function binNumberFormatExpr(field, format, formatType, config) {
+    var _ref3;
+
+    if (isCustomFormatType(formatType)) {
+      return customFormatExpr(formatType, field, format);
+    }
+
+    return formatExpr(field, (_ref3 = vega.isString(format) ? format : undefined) !== null && _ref3 !== void 0 ? _ref3 : config.numberFormat);
+  }
+
+  function binFormatExpression(startField, endField, format, formatType, config) {
+    const start = binNumberFormatExpr(startField, format, formatType, config);
+    const end = binNumberFormatExpr(endField, format, formatType, config);
+    return "".concat(fieldValidPredicate(startField, false), " ? \"null\" : ").concat(start, " + \"").concat(BIN_RANGE_DELIMITER, "\" + ").concat(end);
+  }
+  /**
+   * Returns the time expression used for axis/legend labels or text mark for a temporal field
+   */
+
+  function timeFormatExpression(field, timeUnit, format, rawTimeFormat, // should be provided only for actual text and headers, not axis/legend labels
+  isUTCScale) {
+    if (!timeUnit || format) {
+      // If there is no time unit, or if user explicitly specifies format for axis/legend/text.
+      format = vega.isString(format) ? format : rawTimeFormat; // only use provided timeFormat if there is no timeUnit.
+
+      return "".concat(isUTCScale ? 'utc' : 'time', "Format(").concat(field, ", '").concat(format, "')");
+    } else {
+      return formatExpression(timeUnit, field, isUTCScale);
+    }
+  }
+
+  const DEFAULT_SORT_OP = 'min';
+  /**
+   * A sort definition for sorting a discrete scale in an encoding field definition.
+   */
+
+  const SORT_BY_CHANNEL_INDEX = {
+    x: 1,
+    y: 1,
+    color: 1,
+    fill: 1,
+    stroke: 1,
+    strokeWidth: 1,
+    size: 1,
+    shape: 1,
+    fillOpacity: 1,
+    strokeOpacity: 1,
+    opacity: 1,
+    text: 1
+  };
+  function isSortByChannel(c) {
+    return c in SORT_BY_CHANNEL_INDEX;
+  }
+  function isSortByEncoding(sort) {
+    return !!sort && !!sort['encoding'];
+  }
+  function isSortField(sort) {
+    return !!sort && (sort['op'] === 'count' || !!sort['field']);
+  }
+  function isSortArray(sort) {
+    return !!sort && vega.isArray(sort);
+  }
+
+  function isFacetMapping(f) {
+    return 'row' in f || 'column' in f;
+  }
+  /**
+   * Facet mapping for encoding macro
+   */
+
+  function isFacetFieldDef(channelDef) {
+    return !!channelDef && 'header' in channelDef;
+  }
+  /**
+   * Base interface for a facet specification.
+   */
+
+  function isFacetSpec(spec) {
+    return 'facet' in spec;
+  }
+
+  function isConditionalParameter(c) {
+    return c['param'];
+  }
+  function isRepeatRef(field) {
+    return field && !vega.isString(field) && 'repeat' in field;
+  }
+  /** @@hidden */
+
+  function toFieldDefBase(fieldDef) {
+    const {
+      field,
+      timeUnit,
+      bin,
+      aggregate
+    } = fieldDef;
+    return { ...(timeUnit ? {
+        timeUnit
+      } : {}),
+      ...(bin ? {
+        bin
+      } : {}),
+      ...(aggregate ? {
+        aggregate
+      } : {}),
+      field
+    };
+  }
+  function isSortableFieldDef(fieldDef) {
+    return 'sort' in fieldDef;
+  }
+  function getBandPosition(_ref) {
+    let {
+      fieldDef,
+      fieldDef2,
+      markDef: mark,
+      config
+    } = _ref;
+
+    if (isFieldOrDatumDef(fieldDef) && fieldDef.bandPosition !== undefined) {
+      return fieldDef.bandPosition;
+    }
+
+    if (isFieldDef(fieldDef)) {
+      const {
+        timeUnit,
+        bin
+      } = fieldDef;
+
+      if (timeUnit && !fieldDef2) {
+        return isRectBasedMark(mark.type) ? 0 : getMarkConfig('timeUnitBandPosition', mark, config);
+      } else if (isBinning(bin)) {
+        return 0.5;
+      }
+    }
+
+    return undefined;
+  }
+  function getBandSize(_ref2) {
+    let {
+      channel,
+      fieldDef,
+      fieldDef2,
+      markDef: mark,
+      config,
+      scaleType,
+      useVlSizeChannel
+    } = _ref2;
+    const sizeChannel = getSizeChannel(channel);
+    const size = getMarkPropOrConfig(useVlSizeChannel ? 'size' : sizeChannel, mark, config, {
+      vgChannel: sizeChannel
+    });
+
+    if (size !== undefined) {
+      return size;
+    }
+
+    if (isFieldDef(fieldDef)) {
+      const {
+        timeUnit,
+        bin
+      } = fieldDef;
+
+      if (timeUnit && !fieldDef2) {
+        return {
+          band: getMarkConfig('timeUnitBandSize', mark, config)
+        };
+      } else if (isBinning(bin) && !hasDiscreteDomain(scaleType)) {
+        return {
+          band: 1
+        };
+      }
+    }
+
+    if (isRectBasedMark(mark.type)) {
+      var _config$mark$type3;
+
+      if (scaleType) {
+        if (hasDiscreteDomain(scaleType)) {
+          var _config$mark$type;
+
+          return ((_config$mark$type = config[mark.type]) === null || _config$mark$type === void 0 ? void 0 : _config$mark$type.discreteBandSize) || {
+            band: 1
+          };
+        } else {
+          var _config$mark$type2;
+
+          return (_config$mark$type2 = config[mark.type]) === null || _config$mark$type2 === void 0 ? void 0 : _config$mark$type2.continuousBandSize;
+        }
+      }
+
+      return (_config$mark$type3 = config[mark.type]) === null || _config$mark$type3 === void 0 ? void 0 : _config$mark$type3.discreteBandSize;
+    }
+
+    return undefined;
+  }
+  function hasBandEnd(fieldDef, fieldDef2, markDef, config) {
+    if (isBinning(fieldDef.bin) || fieldDef.timeUnit && isTypedFieldDef(fieldDef) && fieldDef.type === 'temporal') {
+      // Need to check bandPosition because non-rect marks (e.g., point) with timeUnit
+      // doesn't have to use bandEnd if there is no bandPosition.
+      return getBandPosition({
+        fieldDef,
+        fieldDef2,
+        markDef,
+        config
+      }) !== undefined;
+    }
+
+    return false;
+  }
+  /**
+   * Field definition of a mark property, which can contain a legend.
+   */
+
+  function isConditionalDef(channelDef) {
+    return channelDef && 'condition' in channelDef;
+  }
+  /**
+   * Return if a channelDef is a ConditionalValueDef with ConditionFieldDef
+   */
+
+  function hasConditionalFieldDef(channelDef) {
+    const condition = channelDef && channelDef['condition'];
+    return !!condition && !vega.isArray(condition) && isFieldDef(condition);
+  }
+  function hasConditionalFieldOrDatumDef(channelDef) {
+    const condition = channelDef && channelDef['condition'];
+    return !!condition && !vega.isArray(condition) && isFieldOrDatumDef(condition);
+  }
+  function hasConditionalValueDef(channelDef) {
+    const condition = channelDef && channelDef['condition'];
+    return !!condition && (vega.isArray(condition) || isValueDef(condition));
+  }
+  function isFieldDef(channelDef) {
+    // TODO: we can't use field in channelDef here as it's somehow failing runtime test
+    return channelDef && (!!channelDef['field'] || channelDef['aggregate'] === 'count');
+  }
+  function channelDefType(channelDef) {
+    return channelDef && channelDef['type'];
+  }
+  function isDatumDef(channelDef) {
+    return channelDef && 'datum' in channelDef;
+  }
+  function isContinuousFieldOrDatumDef(cd) {
+    // TODO: make datum support DateTime object
+    return isTypedFieldDef(cd) && !isDiscrete(cd) || isNumericDataDef(cd);
+  }
+  function isNumericDataDef(cd) {
+    return isDatumDef(cd) && vega.isNumber(cd.datum);
+  }
+  function isFieldOrDatumDef(channelDef) {
+    return isFieldDef(channelDef) || isDatumDef(channelDef);
+  }
+  function isTypedFieldDef(channelDef) {
+    return channelDef && ('field' in channelDef || channelDef['aggregate'] === 'count') && 'type' in channelDef;
+  }
+  function isValueDef(channelDef) {
+    return channelDef && 'value' in channelDef && 'value' in channelDef;
+  }
+  function isScaleFieldDef(channelDef) {
+    return channelDef && ('scale' in channelDef || 'sort' in channelDef);
+  }
+  function isPositionFieldOrDatumDef(channelDef) {
+    return channelDef && ('axis' in channelDef || 'stack' in channelDef || 'impute' in channelDef);
+  }
+  function isMarkPropFieldOrDatumDef(channelDef) {
+    return channelDef && 'legend' in channelDef;
+  }
+  function isStringFieldOrDatumDef(channelDef) {
+    return channelDef && ('format' in channelDef || 'formatType' in channelDef);
+  }
+  function toStringFieldDef(fieldDef) {
+    // omit properties that don't exist in string field defs
+    return omit(fieldDef, ['legend', 'axis', 'header', 'scale']);
+  }
+
+  function isOpFieldDef(fieldDef) {
+    return 'op' in fieldDef;
+  }
+  /**
+   * Get a Vega field reference from a Vega-Lite field def.
+   */
+
+
+  function vgField(fieldDef) {
+    let opt = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    let field = fieldDef.field;
+    const prefix = opt.prefix;
+    let suffix = opt.suffix;
+    let argAccessor = ''; // for accessing argmin/argmax field at the end without getting escaped
+
+    if (isCount(fieldDef)) {
+      field = internalField('count');
+    } else {
+      let fn;
+
+      if (!opt.nofn) {
+        if (isOpFieldDef(fieldDef)) {
+          fn = fieldDef.op;
+        } else {
+          const {
+            bin,
+            aggregate,
+            timeUnit
+          } = fieldDef;
+
+          if (isBinning(bin)) {
+            var _opt$binSuffix, _opt$suffix;
+
+            fn = binToString(bin);
+            suffix = ((_opt$binSuffix = opt.binSuffix) !== null && _opt$binSuffix !== void 0 ? _opt$binSuffix : '') + ((_opt$suffix = opt.suffix) !== null && _opt$suffix !== void 0 ? _opt$suffix : '');
+          } else if (aggregate) {
+            if (isArgmaxDef(aggregate)) {
+              argAccessor = "[\"".concat(field, "\"]");
+              field = "argmax_".concat(aggregate.argmax);
+            } else if (isArgminDef(aggregate)) {
+              argAccessor = "[\"".concat(field, "\"]");
+              field = "argmin_".concat(aggregate.argmin);
+            } else {
+              fn = String(aggregate);
+            }
+          } else if (timeUnit) {
+            var _opt$suffix2;
+
+            fn = timeUnitToString(timeUnit);
+            suffix = (!['range', 'mid'].includes(opt.binSuffix) && opt.binSuffix || '') + ((_opt$suffix2 = opt.suffix) !== null && _opt$suffix2 !== void 0 ? _opt$suffix2 : '');
+          }
+        }
+      }
+
+      if (fn) {
+        field = field ? "".concat(fn, "_").concat(field) : fn;
+      }
+    }
+
+    if (suffix) {
+      field = "".concat(field, "_").concat(suffix);
+    }
+
+    if (prefix) {
+      field = "".concat(prefix, "_").concat(field);
+    }
+
+    if (opt.forAs) {
+      return removePathFromField(field);
+    } else if (opt.expr) {
+      // Expression to access flattened field. No need to escape dots.
+      return flatAccessWithDatum(field, opt.expr) + argAccessor;
+    } else {
+      // We flattened all fields so paths should have become dot.
+      return replacePathInField(field) + argAccessor;
+    }
+  }
+  function isDiscrete(def) {
+    switch (def.type) {
+      case 'nominal':
+      case 'ordinal':
+      case 'geojson':
+        return true;
+
+      case 'quantitative':
+        return isFieldDef(def) && !!def.bin;
+
+      case 'temporal':
+        return false;
+    }
+
+    throw new Error(invalidFieldType(def.type));
+  }
+  function isDiscretizing(def) {
+    var _def$scale;
+
+    return isScaleFieldDef(def) && isContinuousToDiscrete((_def$scale = def.scale) === null || _def$scale === void 0 ? void 0 : _def$scale.type);
+  }
+  function isCount(fieldDef) {
+    return fieldDef.aggregate === 'count';
+  }
+  function verbalTitleFormatter(fieldDef, config) {
+    const {
+      field,
+      bin,
+      timeUnit,
+      aggregate
+    } = fieldDef;
+
+    if (aggregate === 'count') {
+      return config.countTitle;
+    } else if (isBinning(bin)) {
+      return "".concat(field, " (binned)");
+    } else if (timeUnit) {
+      var _normalizeTimeUnit;
+
+      const unit = (_normalizeTimeUnit = normalizeTimeUnit(timeUnit)) === null || _normalizeTimeUnit === void 0 ? void 0 : _normalizeTimeUnit.unit;
+
+      if (unit) {
+        return "".concat(field, " (").concat(getTimeUnitParts(unit).join('-'), ")");
+      }
+    } else if (aggregate) {
+      if (isArgmaxDef(aggregate)) {
+        return "".concat(field, " for max ").concat(aggregate.argmax);
+      } else if (isArgminDef(aggregate)) {
+        return "".concat(field, " for min ").concat(aggregate.argmin);
+      } else {
+        return "".concat(titleCase(aggregate), " of ").concat(field);
+      }
+    }
+
+    return field;
+  }
+  function functionalTitleFormatter(fieldDef) {
+    const {
+      aggregate,
+      bin,
+      timeUnit,
+      field
+    } = fieldDef;
+
+    if (isArgmaxDef(aggregate)) {
+      return "".concat(field, " for argmax(").concat(aggregate.argmax, ")");
+    } else if (isArgminDef(aggregate)) {
+      return "".concat(field, " for argmin(").concat(aggregate.argmin, ")");
+    }
+
+    const timeUnitParams = normalizeTimeUnit(timeUnit);
+    const fn = aggregate || (timeUnitParams === null || timeUnitParams === void 0 ? void 0 : timeUnitParams.unit) || (timeUnitParams === null || timeUnitParams === void 0 ? void 0 : timeUnitParams.maxbins) && 'timeunit' || isBinning(bin) && 'bin';
+
+    if (fn) {
+      return "".concat(fn.toUpperCase(), "(").concat(field, ")");
+    } else {
+      return field;
+    }
+  }
+  const defaultTitleFormatter = (fieldDef, config) => {
+    switch (config.fieldTitle) {
+      case 'plain':
+        return fieldDef.field;
+
+      case 'functional':
+        return functionalTitleFormatter(fieldDef);
+
+      default:
+        return verbalTitleFormatter(fieldDef, config);
+    }
+  };
+  let titleFormatter = defaultTitleFormatter;
+  function setTitleFormatter(formatter) {
+    titleFormatter = formatter;
+  }
+  function resetTitleFormatter() {
+    setTitleFormatter(defaultTitleFormatter);
+  }
+  function title(fieldOrDatumDef, config, _ref3) {
+    var _getGuide;
+
+    let {
+      allowDisabling,
+      includeDefault = true
+    } = _ref3;
+    const guideTitle = (_getGuide = getGuide(fieldOrDatumDef)) === null || _getGuide === void 0 ? void 0 : _getGuide.title;
+
+    if (!isFieldDef(fieldOrDatumDef)) {
+      return guideTitle !== null && guideTitle !== void 0 ? guideTitle : fieldOrDatumDef.title;
+    }
+
+    const fieldDef = fieldOrDatumDef;
+    const def = includeDefault ? defaultTitle(fieldDef, config) : undefined;
+
+    if (allowDisabling) {
+      return getFirstDefined(guideTitle, fieldDef.title, def);
+    } else {
+      var _ref4;
+
+      return (_ref4 = guideTitle !== null && guideTitle !== void 0 ? guideTitle : fieldDef.title) !== null && _ref4 !== void 0 ? _ref4 : def;
+    }
+  }
+  function getGuide(fieldDef) {
+    if (isPositionFieldOrDatumDef(fieldDef) && fieldDef.axis) {
+      return fieldDef.axis;
+    } else if (isMarkPropFieldOrDatumDef(fieldDef) && fieldDef.legend) {
+      return fieldDef.legend;
+    } else if (isFacetFieldDef(fieldDef) && fieldDef.header) {
+      return fieldDef.header;
+    }
+
+    return undefined;
+  }
+  function defaultTitle(fieldDef, config) {
+    return titleFormatter(fieldDef, config);
+  }
+  function getFormatMixins(fieldDef) {
+    if (isStringFieldOrDatumDef(fieldDef)) {
+      const {
+        format,
+        formatType
+      } = fieldDef;
+      return {
+        format,
+        formatType
+      };
+    } else {
+      var _getGuide2;
+
+      const guide = (_getGuide2 = getGuide(fieldDef)) !== null && _getGuide2 !== void 0 ? _getGuide2 : {};
+      const {
+        format,
+        formatType
+      } = guide;
+      return {
+        format,
+        formatType
+      };
+    }
+  }
+  function defaultType$2(fieldDef, channel) {
+    var _fieldDef$scale;
+
+    switch (channel) {
+      case 'latitude':
+      case 'longitude':
+        return 'quantitative';
+
+      case 'row':
+      case 'column':
+      case 'facet':
+      case 'shape':
+      case 'strokeDash':
+        return 'nominal';
+
+      case 'order':
+        return 'ordinal';
+    }
+
+    if (isSortableFieldDef(fieldDef) && vega.isArray(fieldDef.sort)) {
+      return 'ordinal';
+    }
+
+    const {
+      aggregate,
+      bin,
+      timeUnit
+    } = fieldDef;
+
+    if (timeUnit) {
+      return 'temporal';
+    }
+
+    if (bin || aggregate && !isArgmaxDef(aggregate) && !isArgminDef(aggregate)) {
+      return 'quantitative';
+    }
+
+    if (isScaleFieldDef(fieldDef) && (_fieldDef$scale = fieldDef.scale) !== null && _fieldDef$scale !== void 0 && _fieldDef$scale.type) {
+      switch (SCALE_CATEGORY_INDEX[fieldDef.scale.type]) {
+        case 'numeric':
+        case 'discretizing':
+          return 'quantitative';
+
+        case 'time':
+          return 'temporal';
+      }
+    }
+
+    return 'nominal';
+  }
+  /**
+   * Returns the fieldDef -- either from the outer channelDef or from the condition of channelDef.
+   * @param channelDef
+   */
+
+  function getFieldDef(channelDef) {
+    if (isFieldDef(channelDef)) {
+      return channelDef;
+    } else if (hasConditionalFieldDef(channelDef)) {
+      return channelDef.condition;
+    }
+
+    return undefined;
+  }
+  function getFieldOrDatumDef(channelDef) {
+    if (isFieldOrDatumDef(channelDef)) {
+      return channelDef;
+    } else if (hasConditionalFieldOrDatumDef(channelDef)) {
+      return channelDef.condition;
+    }
+
+    return undefined;
+  }
+  /**
+   * Convert type to full, lowercase type, or augment the fieldDef with a default type if missing.
+   */
+
+  function initChannelDef(channelDef, channel, config) {
+    let opt = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
+
+    if (vega.isString(channelDef) || vega.isNumber(channelDef) || vega.isBoolean(channelDef)) {
+      const primitiveType = vega.isString(channelDef) ? 'string' : vega.isNumber(channelDef) ? 'number' : 'boolean';
+      warn(primitiveChannelDef(channel, primitiveType, channelDef));
+      return {
+        value: channelDef
+      };
+    } // If a fieldDef contains a field, we need type.
+
+
+    if (isFieldOrDatumDef(channelDef)) {
+      return initFieldOrDatumDef(channelDef, channel, config, opt);
+    } else if (hasConditionalFieldOrDatumDef(channelDef)) {
+      return { ...channelDef,
+        // Need to cast as normalizeFieldDef normally return FieldDef, but here we know that it is definitely Condition<FieldDef>
+        condition: initFieldOrDatumDef(channelDef.condition, channel, config, opt)
+      };
+    }
+
+    return channelDef;
+  }
+  function initFieldOrDatumDef(fd, channel, config, opt) {
+    if (isStringFieldOrDatumDef(fd)) {
+      const {
+        format,
+        formatType,
+        ...rest
+      } = fd;
+
+      if (isCustomFormatType(formatType) && !config.customFormatTypes) {
+        warn(customFormatTypeNotAllowed(channel));
+        return initFieldOrDatumDef(rest, channel, config, opt);
+      }
+    } else {
+      const guideType = isPositionFieldOrDatumDef(fd) ? 'axis' : isMarkPropFieldOrDatumDef(fd) ? 'legend' : isFacetFieldDef(fd) ? 'header' : null;
+
+      if (guideType && fd[guideType]) {
+        const {
+          format,
+          formatType,
+          ...newGuide
+        } = fd[guideType];
+
+        if (isCustomFormatType(formatType) && !config.customFormatTypes) {
+          warn(customFormatTypeNotAllowed(channel));
+          return initFieldOrDatumDef({ ...fd,
+            [guideType]: newGuide
+          }, channel, config, opt);
+        }
+      }
+    }
+
+    if (isFieldDef(fd)) {
+      return initFieldDef(fd, channel, opt);
+    }
+
+    return initDatumDef(fd);
+  }
+
+  function initDatumDef(datumDef) {
+    let type = datumDef['type'];
+
+    if (type) {
+      return datumDef;
+    }
+
+    const {
+      datum
+    } = datumDef;
+    type = vega.isNumber(datum) ? 'quantitative' : vega.isString(datum) ? 'nominal' : isDateTime(datum) ? 'temporal' : undefined;
+    return { ...datumDef,
+      type
+    };
+  }
+
+  function initFieldDef(fd, channel) {
+    let {
+      compositeMark = false
+    } = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+    const {
+      aggregate,
+      timeUnit,
+      bin,
+      field
+    } = fd;
+    const fieldDef = { ...fd
+    }; // Drop invalid aggregate
+
+    if (!compositeMark && aggregate && !isAggregateOp(aggregate) && !isArgmaxDef(aggregate) && !isArgminDef(aggregate)) {
+      warn(invalidAggregate(aggregate));
+      delete fieldDef.aggregate;
+    } // Normalize Time Unit
+
+
+    if (timeUnit) {
+      fieldDef.timeUnit = normalizeTimeUnit(timeUnit);
+    }
+
+    if (field) {
+      fieldDef.field = "".concat(field);
+    } // Normalize bin
+
+
+    if (isBinning(bin)) {
+      fieldDef.bin = normalizeBin(bin, channel);
+    }
+
+    if (isBinned(bin) && !isXorY(channel)) {
+      warn(channelShouldNotBeUsedForBinned(channel));
+    } // Normalize Type
+
+
+    if (isTypedFieldDef(fieldDef)) {
+      const {
+        type
+      } = fieldDef;
+      const fullType = getFullName(type);
+
+      if (type !== fullType) {
+        // convert short type to full type
+        fieldDef.type = fullType;
+      }
+
+      if (type !== 'quantitative') {
+        if (isCountingAggregateOp(aggregate)) {
+          warn(invalidFieldTypeForCountAggregate(type, aggregate));
+          fieldDef.type = 'quantitative';
+        }
+      }
+    } else if (!isSecondaryRangeChannel(channel)) {
+      // If type is empty / invalid, then augment with default type
+      const newType = defaultType$2(fieldDef, channel);
+      fieldDef['type'] = newType;
+    }
+
+    if (isTypedFieldDef(fieldDef)) {
+      const {
+        compatible,
+        warning
+      } = channelCompatibility(fieldDef, channel) || {};
+
+      if (compatible === false) {
+        warn(warning);
+      }
+    }
+
+    if (isSortableFieldDef(fieldDef) && vega.isString(fieldDef.sort)) {
+      const {
+        sort
+      } = fieldDef;
+
+      if (isSortByChannel(sort)) {
+        return { ...fieldDef,
+          sort: {
+            encoding: sort
+          }
+        };
+      }
+
+      const sub = sort.substr(1);
+
+      if (sort.charAt(0) === '-' && isSortByChannel(sub)) {
+        return { ...fieldDef,
+          sort: {
+            encoding: sub,
+            order: 'descending'
+          }
+        };
+      }
+    }
+
+    if (isFacetFieldDef(fieldDef)) {
+      const {
+        header
+      } = fieldDef;
+
+      if (header) {
+        const {
+          orient,
+          ...rest
+        } = header;
+
+        if (orient) {
+          return { ...fieldDef,
+            header: { ...rest,
+              labelOrient: header.labelOrient || orient,
+              titleOrient: header.titleOrient || orient
+            }
+          };
+        }
+      }
+    }
+
+    return fieldDef;
+  }
+  function normalizeBin(bin, channel) {
+    if (vega.isBoolean(bin)) {
+      return {
+        maxbins: autoMaxBins(channel)
+      };
+    } else if (bin === 'binned') {
+      return {
+        binned: true
+      };
+    } else if (!bin.maxbins && !bin.step) {
+      return { ...bin,
+        maxbins: autoMaxBins(channel)
+      };
+    } else {
+      return bin;
+    }
+  }
+  const COMPATIBLE = {
+    compatible: true
+  };
+  function channelCompatibility(fieldDef, channel) {
+    const type = fieldDef.type;
+
+    if (type === 'geojson' && channel !== 'shape') {
+      return {
+        compatible: false,
+        warning: "Channel ".concat(channel, " should not be used with a geojson data.")
+      };
+    }
+
+    switch (channel) {
+      case ROW:
+      case COLUMN:
+      case FACET:
+        if (!isDiscrete(fieldDef)) {
+          return {
+            compatible: false,
+            warning: channelShouldBeDiscrete(channel)
+          };
+        }
+
+        return COMPATIBLE;
+
+      case X:
+      case Y:
+      case XOFFSET:
+      case YOFFSET:
+      case COLOR:
+      case FILL:
+      case STROKE:
+      case TEXT$1:
+      case DETAIL:
+      case KEY:
+      case TOOLTIP:
+      case HREF:
+      case URL:
+      case ANGLE:
+      case THETA:
+      case RADIUS:
+      case DESCRIPTION:
+        return COMPATIBLE;
+
+      case LONGITUDE:
+      case LONGITUDE2:
+      case LATITUDE:
+      case LATITUDE2:
+        if (type !== QUANTITATIVE) {
+          return {
+            compatible: false,
+            warning: "Channel ".concat(channel, " should be used with a quantitative field only, not ").concat(fieldDef.type, " field.")
+          };
+        }
+
+        return COMPATIBLE;
+
+      case OPACITY:
+      case FILLOPACITY:
+      case STROKEOPACITY:
+      case STROKEWIDTH:
+      case SIZE:
+      case THETA2:
+      case RADIUS2:
+      case X2:
+      case Y2:
+        if (type === 'nominal' && !fieldDef['sort']) {
+          return {
+            compatible: false,
+            warning: "Channel ".concat(channel, " should not be used with an unsorted discrete field.")
+          };
+        }
+
+        return COMPATIBLE;
+
+      case SHAPE:
+      case STROKEDASH:
+        if (!isDiscrete(fieldDef) && !isDiscretizing(fieldDef)) {
+          return {
+            compatible: false,
+            warning: channelShouldBeDiscreteOrDiscretizing(channel)
+          };
+        }
+
+        return COMPATIBLE;
+
+      case ORDER:
+        if (fieldDef.type === 'nominal' && !('sort' in fieldDef)) {
+          return {
+            compatible: false,
+            warning: "Channel order is inappropriate for nominal field, which has no inherent order."
+          };
+        }
+
+        return COMPATIBLE;
+    }
+  }
+  /**
+   * Check if the field def uses a time format or does not use any format but is temporal
+   * (this does not cover field defs that are temporal but use a number format).
+   */
+
+  function isFieldOrDatumDefForTimeFormat(fieldOrDatumDef) {
+    const {
+      formatType
+    } = getFormatMixins(fieldOrDatumDef);
+    return formatType === 'time' || !formatType && isTimeFieldDef(fieldOrDatumDef);
+  }
+  /**
+   * Check if field def has type `temporal`. If you want to also cover field defs that use a time format, use `isTimeFormatFieldDef`.
+   */
+
+  function isTimeFieldDef(def) {
+    return def && (def['type'] === 'temporal' || isFieldDef(def) && !!def.timeUnit);
+  }
+  /**
+   * Getting a value associated with a fielddef.
+   * Convert the value to Vega expression if applicable (for datetime object, or string if the field def is temporal or has timeUnit)
+   */
+
+  function valueExpr(v, _ref5) {
+    var _normalizeTimeUnit2;
+
+    let {
+      timeUnit,
+      type,
+      wrapTime,
+      undefinedIfExprNotRequired
+    } = _ref5;
+    const unit = timeUnit && ((_normalizeTimeUnit2 = normalizeTimeUnit(timeUnit)) === null || _normalizeTimeUnit2 === void 0 ? void 0 : _normalizeTimeUnit2.unit);
+    let isTime = unit || type === 'temporal';
+    let expr;
+
+    if (isExprRef(v)) {
+      expr = v.expr;
+    } else if (isSignalRef(v)) {
+      expr = v.signal;
+    } else if (isDateTime(v)) {
+      isTime = true;
+      expr = dateTimeToExpr(v);
+    } else if (vega.isString(v) || vega.isNumber(v)) {
+      if (isTime) {
+        expr = "datetime(".concat(stringify(v), ")");
+
+        if (isLocalSingleTimeUnit(unit)) {
+          // for single timeUnit, we will use dateTimeToExpr to convert number/string to match the timeUnit
+          if (vega.isNumber(v) && v < 10000 || vega.isString(v) && isNaN(Date.parse(v))) {
+            expr = dateTimeToExpr({
+              [unit]: v
+            });
+          }
+        }
+      }
+    }
+
+    if (expr) {
+      return wrapTime && isTime ? "time(".concat(expr, ")") : expr;
+    } // number or boolean or normal string
+
+
+    return undefinedIfExprNotRequired ? undefined : stringify(v);
+  }
+  /**
+   * Standardize value array -- convert each value to Vega expression if applicable
+   */
+
+  function valueArray(fieldOrDatumDef, values) {
+    const {
+      type
+    } = fieldOrDatumDef;
+    return values.map(v => {
+      const expr = valueExpr(v, {
+        timeUnit: isFieldDef(fieldOrDatumDef) ? fieldOrDatumDef.timeUnit : undefined,
+        type,
+        undefinedIfExprNotRequired: true
+      }); // return signal for the expression if we need an expression
+
+      if (expr !== undefined) {
+        return {
+          signal: expr
+        };
+      } // otherwise just return the original value
+
+
+      return v;
+    });
+  }
+  /**
+   * Checks whether a fieldDef for a particular channel requires a computed bin range.
+   */
+
+  function binRequiresRange(fieldDef, channel) {
+    if (!isBinning(fieldDef.bin)) {
+      console.warn('Only call this method for binned field defs.');
+      return false;
+    } // We need the range only when the user explicitly forces a binned field to be use discrete scale. In this case, bin range is used in axis and legend labels.
+    // We could check whether the axis or legend exists (not disabled) but that seems overkill.
+
+
+    return isScaleChannel(channel) && ['ordinal', 'nominal'].includes(fieldDef.type);
+  }
+
+  const CONDITIONAL_AXIS_PROP_INDEX = {
+    labelAlign: {
+      part: 'labels',
+      vgProp: 'align'
+    },
+    labelBaseline: {
+      part: 'labels',
+      vgProp: 'baseline'
+    },
+    labelColor: {
+      part: 'labels',
+      vgProp: 'fill'
+    },
+    labelFont: {
+      part: 'labels',
+      vgProp: 'font'
+    },
+    labelFontSize: {
+      part: 'labels',
+      vgProp: 'fontSize'
+    },
+    labelFontStyle: {
+      part: 'labels',
+      vgProp: 'fontStyle'
+    },
+    labelFontWeight: {
+      part: 'labels',
+      vgProp: 'fontWeight'
+    },
+    labelOpacity: {
+      part: 'labels',
+      vgProp: 'opacity'
+    },
+    labelOffset: null,
+    labelPadding: null,
+    // There is no fixed vgProp for tickSize, need to use signal.
+    gridColor: {
+      part: 'grid',
+      vgProp: 'stroke'
+    },
+    gridDash: {
+      part: 'grid',
+      vgProp: 'strokeDash'
+    },
+    gridDashOffset: {
+      part: 'grid',
+      vgProp: 'strokeDashOffset'
+    },
+    gridOpacity: {
+      part: 'grid',
+      vgProp: 'opacity'
+    },
+    gridWidth: {
+      part: 'grid',
+      vgProp: 'strokeWidth'
+    },
+    tickColor: {
+      part: 'ticks',
+      vgProp: 'stroke'
+    },
+    tickDash: {
+      part: 'ticks',
+      vgProp: 'strokeDash'
+    },
+    tickDashOffset: {
+      part: 'ticks',
+      vgProp: 'strokeDashOffset'
+    },
+    tickOpacity: {
+      part: 'ticks',
+      vgProp: 'opacity'
+    },
+    tickSize: null,
+    // There is no fixed vgProp for tickSize, need to use signal.
+    tickWidth: {
+      part: 'ticks',
+      vgProp: 'strokeWidth'
+    }
+  };
+  function isConditionalAxisValue(v) {
+    return v && v['condition'];
+  }
+  const AXIS_PARTS = ['domain', 'grid', 'labels', 'ticks', 'title'];
+  /**
+   * A dictionary listing whether a certain axis property is applicable for only main axes or only grid axes.
+   */
+
+  const AXIS_PROPERTY_TYPE = {
+    grid: 'grid',
+    gridCap: 'grid',
+    gridColor: 'grid',
+    gridDash: 'grid',
+    gridDashOffset: 'grid',
+    gridOpacity: 'grid',
+    gridScale: 'grid',
+    gridWidth: 'grid',
+    orient: 'main',
+    bandPosition: 'both',
+    // Need to be applied to grid axis too, so the grid will align with ticks.
+    aria: 'main',
+    description: 'main',
+    domain: 'main',
+    domainCap: 'main',
+    domainColor: 'main',
+    domainDash: 'main',
+    domainDashOffset: 'main',
+    domainOpacity: 'main',
+    domainWidth: 'main',
+    format: 'main',
+    formatType: 'main',
+    labelAlign: 'main',
+    labelAngle: 'main',
+    labelBaseline: 'main',
+    labelBound: 'main',
+    labelColor: 'main',
+    labelFlush: 'main',
+    labelFlushOffset: 'main',
+    labelFont: 'main',
+    labelFontSize: 'main',
+    labelFontStyle: 'main',
+    labelFontWeight: 'main',
+    labelLimit: 'main',
+    labelLineHeight: 'main',
+    labelOffset: 'main',
+    labelOpacity: 'main',
+    labelOverlap: 'main',
+    labelPadding: 'main',
+    labels: 'main',
+    labelSeparation: 'main',
+    maxExtent: 'main',
+    minExtent: 'main',
+    offset: 'both',
+    position: 'main',
+    tickCap: 'main',
+    tickColor: 'main',
+    tickDash: 'main',
+    tickDashOffset: 'main',
+    tickMinStep: 'both',
+    tickOffset: 'both',
+    // Need to be applied to grid axis too, so the grid will align with ticks.
+    tickOpacity: 'main',
+    tickRound: 'both',
+    // Apply rounding to grid and ticks so they are aligned.
+    ticks: 'main',
+    tickSize: 'main',
+    tickWidth: 'both',
+    title: 'main',
+    titleAlign: 'main',
+    titleAnchor: 'main',
+    titleAngle: 'main',
+    titleBaseline: 'main',
+    titleColor: 'main',
+    titleFont: 'main',
+    titleFontSize: 'main',
+    titleFontStyle: 'main',
+    titleFontWeight: 'main',
+    titleLimit: 'main',
+    titleLineHeight: 'main',
+    titleOpacity: 'main',
+    titlePadding: 'main',
+    titleX: 'main',
+    titleY: 'main',
+    encode: 'both',
+    // we hide this in Vega-Lite
+    scale: 'both',
+    tickBand: 'both',
+    tickCount: 'both',
+    tickExtra: 'both',
+    translate: 'both',
+    values: 'both',
+    zindex: 'both' // this is actually set afterward, so it doesn't matter
+
+  };
+  const COMMON_AXIS_PROPERTIES_INDEX = {
+    orient: 1,
+    // other things can depend on orient
+    aria: 1,
+    bandPosition: 1,
+    description: 1,
+    domain: 1,
+    domainCap: 1,
+    domainColor: 1,
+    domainDash: 1,
+    domainDashOffset: 1,
+    domainOpacity: 1,
+    domainWidth: 1,
+    format: 1,
+    formatType: 1,
+    grid: 1,
+    gridCap: 1,
+    gridColor: 1,
+    gridDash: 1,
+    gridDashOffset: 1,
+    gridOpacity: 1,
+    gridWidth: 1,
+    labelAlign: 1,
+    labelAngle: 1,
+    labelBaseline: 1,
+    labelBound: 1,
+    labelColor: 1,
+    labelFlush: 1,
+    labelFlushOffset: 1,
+    labelFont: 1,
+    labelFontSize: 1,
+    labelFontStyle: 1,
+    labelFontWeight: 1,
+    labelLimit: 1,
+    labelLineHeight: 1,
+    labelOffset: 1,
+    labelOpacity: 1,
+    labelOverlap: 1,
+    labelPadding: 1,
+    labels: 1,
+    labelSeparation: 1,
+    maxExtent: 1,
+    minExtent: 1,
+    offset: 1,
+    position: 1,
+    tickBand: 1,
+    tickCap: 1,
+    tickColor: 1,
+    tickCount: 1,
+    tickDash: 1,
+    tickDashOffset: 1,
+    tickExtra: 1,
+    tickMinStep: 1,
+    tickOffset: 1,
+    tickOpacity: 1,
+    tickRound: 1,
+    ticks: 1,
+    tickSize: 1,
+    tickWidth: 1,
+    title: 1,
+    titleAlign: 1,
+    titleAnchor: 1,
+    titleAngle: 1,
+    titleBaseline: 1,
+    titleColor: 1,
+    titleFont: 1,
+    titleFontSize: 1,
+    titleFontStyle: 1,
+    titleFontWeight: 1,
+    titleLimit: 1,
+    titleLineHeight: 1,
+    titleOpacity: 1,
+    titlePadding: 1,
+    titleX: 1,
+    titleY: 1,
+    translate: 1,
+    values: 1,
+    zindex: 1
+  };
+  const AXIS_PROPERTIES_INDEX = { ...COMMON_AXIS_PROPERTIES_INDEX,
+    style: 1,
+    labelExpr: 1,
+    encoding: 1
+  };
+  function isAxisProperty(prop) {
+    return !!AXIS_PROPERTIES_INDEX[prop];
+  } // Export for dependent projects
+  const AXIS_CONFIGS_INDEX = {
+    axis: 1,
+    axisBand: 1,
+    axisBottom: 1,
+    axisDiscrete: 1,
+    axisLeft: 1,
+    axisPoint: 1,
+    axisQuantitative: 1,
+    axisRight: 1,
+    axisTemporal: 1,
+    axisTop: 1,
+    axisX: 1,
+    axisXBand: 1,
+    axisXDiscrete: 1,
+    axisXPoint: 1,
+    axisXQuantitative: 1,
+    axisXTemporal: 1,
+    axisY: 1,
+    axisYBand: 1,
+    axisYDiscrete: 1,
+    axisYPoint: 1,
+    axisYQuantitative: 1,
+    axisYTemporal: 1
+  };
+  const AXIS_CONFIGS = keys(AXIS_CONFIGS_INDEX);
+
+  /**
+   * Base interface for a unit (single-view) specification.
+   */
+
+  /**
+   * A unit specification without any shortcut/expansion syntax.
+   */
+
+  /**
+   * A unit specification, which can contain either [primitive marks or composite marks](https://vega.github.io/vega-lite/docs/mark.html#types).
+   */
+
+  /**
+   * Unit spec that can have a composite mark and row or column channels (shorthand for a facet spec).
+   */
+  function isUnitSpec(spec) {
+    return 'mark' in spec;
+  }
+
+  class CompositeMarkNormalizer {
+    constructor(name, run) {
+      this.name = name;
+      this.run = run;
+    }
+
+    hasMatchingType(spec) {
+      if (isUnitSpec(spec)) {
+        return getMarkType(spec.mark) === this.name;
+      }
+
+      return false;
+    }
+
+  }
+
+  function channelHasField(encoding, channel) {
+    const channelDef = encoding && encoding[channel];
+
+    if (channelDef) {
+      if (vega.isArray(channelDef)) {
+        return some(channelDef, fieldDef => !!fieldDef.field);
+      } else {
+        return isFieldDef(channelDef) || hasConditionalFieldDef(channelDef);
+      }
+    }
+
+    return false;
+  }
+  function channelHasFieldOrDatum(encoding, channel) {
+    const channelDef = encoding && encoding[channel];
+
+    if (channelDef) {
+      if (vega.isArray(channelDef)) {
+        return some(channelDef, fieldDef => !!fieldDef.field);
+      } else {
+        return isFieldDef(channelDef) || isDatumDef(channelDef) || hasConditionalFieldOrDatumDef(channelDef);
+      }
+    }
+
+    return false;
+  }
+  function channelHasNestedOffsetScale(encoding, channel) {
+    if (isXorY(channel)) {
+      const fieldDef = encoding[channel];
+
+      if ((isFieldDef(fieldDef) || isDatumDef(fieldDef)) && isDiscrete$1(fieldDef.type)) {
+        const offsetChannel = getOffsetScaleChannel(channel);
+        return channelHasFieldOrDatum(encoding, offsetChannel);
+      }
+    }
+
+    return false;
+  }
+  function isAggregate$1(encoding) {
+    return some(CHANNELS, channel => {
+      if (channelHasField(encoding, channel)) {
+        const channelDef = encoding[channel];
+
+        if (vega.isArray(channelDef)) {
+          return some(channelDef, fieldDef => !!fieldDef.aggregate);
+        } else {
+          const fieldDef = getFieldDef(channelDef);
+          return fieldDef && !!fieldDef.aggregate;
+        }
+      }
+
+      return false;
+    });
+  }
+  function extractTransformsFromEncoding(oldEncoding, config) {
+    const groupby = [];
+    const bins = [];
+    const timeUnits = [];
+    const aggregate = [];
+    const encoding = {};
+    forEach(oldEncoding, (channelDef, channel) => {
+      // Extract potential embedded transformations along with remaining properties
+      if (isFieldDef(channelDef)) {
+        const {
+          field,
+          aggregate: aggOp,
+          bin,
+          timeUnit,
+          ...remaining
+        } = channelDef;
+
+        if (aggOp || timeUnit || bin) {
+          const guide = getGuide(channelDef);
+          const isTitleDefined = guide === null || guide === void 0 ? void 0 : guide.title;
+          let newField = vgField(channelDef, {
+            forAs: true
+          });
+          const newFieldDef = { // Only add title if it doesn't exist
+            ...(isTitleDefined ? [] : {
+              title: title(channelDef, config, {
+                allowDisabling: true
+              })
+            }),
+            ...remaining,
+            // Always overwrite field
+            field: newField
+          };
+
+          if (aggOp) {
+            let op;
+
+            if (isArgmaxDef(aggOp)) {
+              op = 'argmax';
+              newField = vgField({
+                op: 'argmax',
+                field: aggOp.argmax
+              }, {
+                forAs: true
+              });
+              newFieldDef.field = "".concat(newField, ".").concat(field);
+            } else if (isArgminDef(aggOp)) {
+              op = 'argmin';
+              newField = vgField({
+                op: 'argmin',
+                field: aggOp.argmin
+              }, {
+                forAs: true
+              });
+              newFieldDef.field = "".concat(newField, ".").concat(field);
+            } else if (aggOp !== 'boxplot' && aggOp !== 'errorbar' && aggOp !== 'errorband') {
+              op = aggOp;
+            }
+
+            if (op) {
+              const aggregateEntry = {
+                op,
+                as: newField
+              };
+
+              if (field) {
+                aggregateEntry.field = field;
+              }
+
+              aggregate.push(aggregateEntry);
+            }
+          } else {
+            groupby.push(newField);
+
+            if (isTypedFieldDef(channelDef) && isBinning(bin)) {
+              bins.push({
+                bin,
+                field,
+                as: newField
+              }); // Add additional groupbys for range and end of bins
+
+              groupby.push(vgField(channelDef, {
+                binSuffix: 'end'
+              }));
+
+              if (binRequiresRange(channelDef, channel)) {
+                groupby.push(vgField(channelDef, {
+                  binSuffix: 'range'
+                }));
+              } // Create accompanying 'x2' or 'y2' field if channel is 'x' or 'y' respectively
+
+
+              if (isXorY(channel)) {
+                const secondaryChannel = {
+                  field: "".concat(newField, "_end")
+                };
+                encoding["".concat(channel, "2")] = secondaryChannel;
+              }
+
+              newFieldDef.bin = 'binned';
+
+              if (!isSecondaryRangeChannel(channel)) {
+                newFieldDef['type'] = QUANTITATIVE;
+              }
+            } else if (timeUnit) {
+              timeUnits.push({
+                timeUnit,
+                field,
+                as: newField
+              }); // define the format type for later compilation
+
+              const formatType = isTypedFieldDef(channelDef) && channelDef.type !== TEMPORAL && 'time';
+
+              if (formatType) {
+                if (channel === TEXT$1 || channel === TOOLTIP) {
+                  newFieldDef['formatType'] = formatType;
+                } else if (isNonPositionScaleChannel(channel)) {
+                  newFieldDef['legend'] = {
+                    formatType,
+                    ...newFieldDef['legend']
+                  };
+                } else if (isXorY(channel)) {
+                  newFieldDef['axis'] = {
+                    formatType,
+                    ...newFieldDef['axis']
+                  };
+                }
+              }
+            }
+          } // now the field should refer to post-transformed field instead
+
+
+          encoding[channel] = newFieldDef;
+        } else {
+          groupby.push(field);
+          encoding[channel] = oldEncoding[channel];
+        }
+      } else {
+        // For value def / signal ref / datum def, just copy
+        encoding[channel] = oldEncoding[channel];
+      }
+    });
+    return {
+      bins,
+      timeUnits,
+      aggregate,
+      groupby,
+      encoding
+    };
+  }
+  function markChannelCompatible(encoding, channel, mark) {
+    const markSupported = supportMark(channel, mark);
+
+    if (!markSupported) {
+      return false;
+    } else if (markSupported === 'binned') {
+      const primaryFieldDef = encoding[channel === X2 ? X : Y]; // circle, point, square and tick only support x2/y2 when their corresponding x/y fieldDef
+      // has "binned" data and thus need x2/y2 to specify the bin-end field.
+
+      if (isFieldDef(primaryFieldDef) && isFieldDef(encoding[channel]) && isBinned(primaryFieldDef.bin)) {
+        return true;
+      } else {
+        return false;
+      }
+    }
+
+    return true;
+  }
+  function initEncoding(encoding, mark, filled, config) {
+    const normalizedEncoding = {};
+
+    for (const key of keys(encoding)) {
+      if (!isChannel(key)) {
+        // Drop invalid channel
+        warn(invalidEncodingChannel(key));
+      }
+    }
+
+    for (let channel of UNIT_CHANNELS) {
+      if (!encoding[channel]) {
+        continue;
+      }
+
+      const channelDef = encoding[channel];
+
+      if (isXorYOffset(channel)) {
+        const mainChannel = getMainChannelFromOffsetChannel(channel);
+        const positionDef = normalizedEncoding[mainChannel];
+
+        if (isFieldDef(positionDef)) {
+          if (isContinuous(positionDef.type)) {
+            if (isFieldDef(channelDef)) {
+              // TODO: nesting continuous field instead continuous field should
+              // behave like offsetting the data in data domain
+              warn(offsetNestedInsideContinuousPositionScaleDropped(mainChannel));
+              continue;
+            }
+          }
+        } else {
+          // no x/y, replace it with main channel
+          channel = mainChannel;
+          warn(replaceOffsetWithMainChannel(mainChannel));
+        }
+      }
+
+      if (channel === 'angle' && mark === 'arc' && !encoding.theta) {
+        warn(REPLACE_ANGLE_WITH_THETA);
+        channel = THETA;
+      }
+
+      if (!markChannelCompatible(encoding, channel, mark)) {
+        // Drop unsupported channel
+        warn(incompatibleChannel(channel, mark));
+        continue;
+      } // Drop line's size if the field is aggregated.
+
+
+      if (channel === SIZE && mark === 'line') {
+        const fieldDef = getFieldDef(encoding[channel]);
+
+        if (fieldDef !== null && fieldDef !== void 0 && fieldDef.aggregate) {
+          warn(LINE_WITH_VARYING_SIZE);
+          continue;
+        }
+      } // Drop color if either fill or stroke is specified
+
+
+      if (channel === COLOR && (filled ? 'fill' in encoding : 'stroke' in encoding)) {
+        warn(droppingColor('encoding', {
+          fill: 'fill' in encoding,
+          stroke: 'stroke' in encoding
+        }));
+        continue;
+      }
+
+      if (channel === DETAIL || channel === ORDER && !vega.isArray(channelDef) && !isValueDef(channelDef) || channel === TOOLTIP && vega.isArray(channelDef)) {
+        if (channelDef) {
+          // Array of fieldDefs for detail channel (or production rule)
+          normalizedEncoding[channel] = vega.array(channelDef).reduce((defs, fieldDef) => {
+            if (!isFieldDef(fieldDef)) {
+              warn(emptyFieldDef(fieldDef, channel));
+            } else {
+              defs.push(initFieldDef(fieldDef, channel));
+            }
+
+            return defs;
+          }, []);
+        }
+      } else {
+        if (channel === TOOLTIP && channelDef === null) {
+          // Preserve null so we can use it to disable tooltip
+          normalizedEncoding[channel] = null;
+        } else if (!isFieldDef(channelDef) && !isDatumDef(channelDef) && !isValueDef(channelDef) && !isConditionalDef(channelDef) && !isSignalRef(channelDef)) {
+          warn(emptyFieldDef(channelDef, channel));
+          continue;
+        }
+
+        normalizedEncoding[channel] = initChannelDef(channelDef, channel, config);
+      }
+    }
+
+    return normalizedEncoding;
+  }
+  /**
+   * For composite marks, we have to call initChannelDef during init so we can infer types earlier.
+   */
+
+  function normalizeEncoding(encoding, config) {
+    const normalizedEncoding = {};
+
+    for (const channel of keys(encoding)) {
+      const newChannelDef = initChannelDef(encoding[channel], channel, config, {
+        compositeMark: true
+      });
+      normalizedEncoding[channel] = newChannelDef;
+    }
+
+    return normalizedEncoding;
+  }
+  function fieldDefs(encoding) {
+    const arr = [];
+
+    for (const channel of keys(encoding)) {
+      if (channelHasField(encoding, channel)) {
+        const channelDef = encoding[channel];
+        const channelDefArray = vega.array(channelDef);
+
+        for (const def of channelDefArray) {
+          if (isFieldDef(def)) {
+            arr.push(def);
+          } else if (hasConditionalFieldDef(def)) {
+            arr.push(def.condition);
+          }
+        }
+      }
+    }
+
+    return arr;
+  }
+  function forEach(mapping, f, thisArg) {
+    if (!mapping) {
+      return;
+    }
+
+    for (const channel of keys(mapping)) {
+      const el = mapping[channel];
+
+      if (vega.isArray(el)) {
+        for (const channelDef of el) {
+          f.call(thisArg, channelDef, channel);
+        }
+      } else {
+        f.call(thisArg, el, channel);
+      }
+    }
+  }
+  function reduce(mapping, f, init, thisArg) {
+    if (!mapping) {
+      return init;
+    }
+
+    return keys(mapping).reduce((r, channel) => {
+      const map = mapping[channel];
+
+      if (vega.isArray(map)) {
+        return map.reduce((r1, channelDef) => {
+          return f.call(thisArg, r1, channelDef, channel);
+        }, r);
+      } else {
+        return f.call(thisArg, r, map, channel);
+      }
+    }, init);
+  }
+  /**
+   * Returns list of path grouping fields for the given encoding
+   */
+
+  function pathGroupingFields(mark, encoding) {
+    return keys(encoding).reduce((details, channel) => {
+      switch (channel) {
+        // x, y, x2, y2, lat, long, lat1, long2, order, tooltip, href, aria label, cursor should not cause lines to group
+        case X:
+        case Y:
+        case HREF:
+        case DESCRIPTION:
+        case URL:
+        case X2:
+        case Y2:
+        case XOFFSET:
+        case YOFFSET:
+        case THETA:
+        case THETA2:
+        case RADIUS:
+        case RADIUS2: // falls through
+
+        case LATITUDE:
+        case LONGITUDE:
+        case LATITUDE2:
+        case LONGITUDE2: // TODO: case 'cursor':
+        // text, shape, shouldn't be a part of line/trail/area [falls through]
+
+        case TEXT$1:
+        case SHAPE:
+        case ANGLE: // falls through
+        // tooltip fields should not be added to group by [falls through]
+
+        case TOOLTIP:
+          return details;
+
+        case ORDER:
+          // order should not group line / trail
+          if (mark === 'line' || mark === 'trail') {
+            return details;
+          }
+
+        // but order should group area for stacking (falls through)
+
+        case DETAIL:
+        case KEY:
+          {
+            const channelDef = encoding[channel];
+
+            if (vega.isArray(channelDef) || isFieldDef(channelDef)) {
+              for (const fieldDef of vega.array(channelDef)) {
+                if (!fieldDef.aggregate) {
+                  details.push(vgField(fieldDef, {}));
+                }
+              }
+            }
+
+            return details;
+          }
+
+        case SIZE:
+          if (mark === 'trail') {
+            // For trail, size should not group trail lines.
+            return details;
+          }
+
+        // For line, size should group lines.
+        // falls through
+
+        case COLOR:
+        case FILL:
+        case STROKE:
+        case OPACITY:
+        case FILLOPACITY:
+        case STROKEOPACITY:
+        case STROKEDASH:
+        case STROKEWIDTH:
+          {
+            // TODO strokeDashOffset:
+            // falls through
+            const fieldDef = getFieldDef(encoding[channel]);
+
+            if (fieldDef && !fieldDef.aggregate) {
+              details.push(vgField(fieldDef, {}));
+            }
+
+            return details;
+          }
+      }
+    }, []);
+  }
+
+  function filterTooltipWithAggregatedField(oldEncoding) {
+    const {
+      tooltip,
+      ...filteredEncoding
+    } = oldEncoding;
+
+    if (!tooltip) {
+      return {
+        filteredEncoding
+      };
+    }
+
+    let customTooltipWithAggregatedField;
+    let customTooltipWithoutAggregatedField;
+
+    if (vega.isArray(tooltip)) {
+      for (const t of tooltip) {
+        if (t.aggregate) {
+          if (!customTooltipWithAggregatedField) {
+            customTooltipWithAggregatedField = [];
+          }
+
+          customTooltipWithAggregatedField.push(t);
+        } else {
+          if (!customTooltipWithoutAggregatedField) {
+            customTooltipWithoutAggregatedField = [];
+          }
+
+          customTooltipWithoutAggregatedField.push(t);
+        }
+      }
+
+      if (customTooltipWithAggregatedField) {
+        filteredEncoding.tooltip = customTooltipWithAggregatedField;
+      }
+    } else {
+      if (tooltip['aggregate']) {
+        filteredEncoding.tooltip = tooltip;
+      } else {
+        customTooltipWithoutAggregatedField = tooltip;
+      }
+    }
+
+    if (vega.isArray(customTooltipWithoutAggregatedField) && customTooltipWithoutAggregatedField.length === 1) {
+      customTooltipWithoutAggregatedField = customTooltipWithoutAggregatedField[0];
+    }
+
+    return {
+      customTooltipWithoutAggregatedField,
+      filteredEncoding
+    };
+  }
+  function getCompositeMarkTooltip(tooltipSummary, continuousAxisChannelDef, encodingWithoutContinuousAxis) {
+    let withFieldName = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : true;
+
+    if ('tooltip' in encodingWithoutContinuousAxis) {
+      return {
+        tooltip: encodingWithoutContinuousAxis.tooltip
+      };
+    }
+
+    const fiveSummaryTooltip = tooltipSummary.map(_ref => {
+      let {
+        fieldPrefix,
+        titlePrefix
+      } = _ref;
+      const mainTitle = withFieldName ? " of ".concat(getTitle(continuousAxisChannelDef)) : '';
+      return {
+        field: fieldPrefix + continuousAxisChannelDef.field,
+        type: continuousAxisChannelDef.type,
+        title: isSignalRef(titlePrefix) ? {
+          signal: "".concat(titlePrefix, "\"").concat(escape(mainTitle), "\"")
+        } : titlePrefix + mainTitle
+      };
+    });
+    const tooltipFieldDefs = fieldDefs(encodingWithoutContinuousAxis).map(toStringFieldDef);
+    return {
+      tooltip: [...fiveSummaryTooltip, // need to cast because TextFieldDef supports fewer types of bin
+      ...unique(tooltipFieldDefs, hash)]
+    };
+  }
+  function getTitle(continuousAxisChannelDef) {
+    const {
+      title,
+      field
+    } = continuousAxisChannelDef;
+    return getFirstDefined(title, field);
+  }
+  function makeCompositeAggregatePartFactory(compositeMarkDef, continuousAxis, continuousAxisChannelDef, sharedEncoding, compositeMarkConfig) {
+    const {
+      scale,
+      axis
+    } = continuousAxisChannelDef;
+    return _ref2 => {
+      let {
+        partName,
+        mark,
+        positionPrefix,
+        endPositionPrefix = undefined,
+        extraEncoding = {}
+      } = _ref2;
+      const title = getTitle(continuousAxisChannelDef);
+      return partLayerMixins(compositeMarkDef, partName, compositeMarkConfig, {
+        mark,
+        // TODO better remove this method and just have mark as a parameter of the method
+        encoding: {
+          [continuousAxis]: {
+            field: "".concat(positionPrefix, "_").concat(continuousAxisChannelDef.field),
+            type: continuousAxisChannelDef.type,
+            ...(title !== undefined ? {
+              title
+            } : {}),
+            ...(scale !== undefined ? {
+              scale
+            } : {}),
+            ...(axis !== undefined ? {
+              axis
+            } : {})
+          },
+          ...(vega.isString(endPositionPrefix) ? {
+            ["".concat(continuousAxis, "2")]: {
+              field: "".concat(endPositionPrefix, "_").concat(continuousAxisChannelDef.field)
+            }
+          } : {}),
+          ...sharedEncoding,
+          ...extraEncoding
+        }
+      });
+    };
+  }
+  function partLayerMixins(markDef, part, compositeMarkConfig, partBaseSpec) {
+    const {
+      clip,
+      color,
+      opacity
+    } = markDef;
+    const mark = markDef.type;
+
+    if (markDef[part] || markDef[part] === undefined && compositeMarkConfig[part]) {
+      return [{ ...partBaseSpec,
+        mark: { ...compositeMarkConfig[part],
+          ...(clip ? {
+            clip
+          } : {}),
+          ...(color ? {
+            color
+          } : {}),
+          ...(opacity ? {
+            opacity
+          } : {}),
+          ...(isMarkDef(partBaseSpec.mark) ? partBaseSpec.mark : {
+            type: partBaseSpec.mark
+          }),
+          style: "".concat(mark, "-").concat(part),
+          ...(vega.isBoolean(markDef[part]) ? {} : markDef[part])
+        }
+      }];
+    }
+
+    return [];
+  }
+  function compositeMarkContinuousAxis(spec, orient, compositeMark) {
+    const {
+      encoding
+    } = spec;
+    const continuousAxis = orient === 'vertical' ? 'y' : 'x';
+    const continuousAxisChannelDef = encoding[continuousAxis]; // Safe to cast because if x is not continuous fielddef, the orient would not be horizontal.
+
+    const continuousAxisChannelDef2 = encoding["".concat(continuousAxis, "2")];
+    const continuousAxisChannelDefError = encoding["".concat(continuousAxis, "Error")];
+    const continuousAxisChannelDefError2 = encoding["".concat(continuousAxis, "Error2")];
+    return {
+      continuousAxisChannelDef: filterAggregateFromChannelDef(continuousAxisChannelDef, compositeMark),
+      continuousAxisChannelDef2: filterAggregateFromChannelDef(continuousAxisChannelDef2, compositeMark),
+      continuousAxisChannelDefError: filterAggregateFromChannelDef(continuousAxisChannelDefError, compositeMark),
+      continuousAxisChannelDefError2: filterAggregateFromChannelDef(continuousAxisChannelDefError2, compositeMark),
+      continuousAxis
+    };
+  }
+
+  function filterAggregateFromChannelDef(continuousAxisChannelDef, compositeMark) {
+    if (continuousAxisChannelDef !== null && continuousAxisChannelDef !== void 0 && continuousAxisChannelDef.aggregate) {
+      const {
+        aggregate,
+        ...continuousAxisWithoutAggregate
+      } = continuousAxisChannelDef;
+
+      if (aggregate !== compositeMark) {
+        warn(errorBarContinuousAxisHasCustomizedAggregate(aggregate, compositeMark));
+      }
+
+      return continuousAxisWithoutAggregate;
+    } else {
+      return continuousAxisChannelDef;
+    }
+  }
+
+  function compositeMarkOrient(spec, compositeMark) {
+    const {
+      mark,
+      encoding
+    } = spec;
+    const {
+      x,
+      y
+    } = encoding;
+
+    if (isMarkDef(mark) && mark.orient) {
+      return mark.orient;
+    }
+
+    if (isContinuousFieldOrDatumDef(x)) {
+      // x is continuous
+      if (isContinuousFieldOrDatumDef(y)) {
+        // both x and y are continuous
+        const xAggregate = isFieldDef(x) && x.aggregate;
+        const yAggregate = isFieldDef(y) && y.aggregate;
+
+        if (!xAggregate && yAggregate === compositeMark) {
+          return 'vertical';
+        } else if (!yAggregate && xAggregate === compositeMark) {
+          return 'horizontal';
+        } else if (xAggregate === compositeMark && yAggregate === compositeMark) {
+          throw new Error('Both x and y cannot have aggregate');
+        } else {
+          if (isFieldOrDatumDefForTimeFormat(y) && !isFieldOrDatumDefForTimeFormat(x)) {
+            // y is temporal but x is not
+            return 'horizontal';
+          } // default orientation for two continuous
+
+
+          return 'vertical';
+        }
+      }
+
+      return 'horizontal';
+    } else if (isContinuousFieldOrDatumDef(y)) {
+      // y is continuous but x is not
+      return 'vertical';
+    } else {
+      // Neither x nor y is continuous.
+      throw new Error("Need a valid continuous axis for ".concat(compositeMark, "s"));
+    }
+  }
+
+  const BOXPLOT = 'boxplot';
+  const BOXPLOT_PARTS = ['box', 'median', 'outliers', 'rule', 'ticks'];
+  const boxPlotNormalizer = new CompositeMarkNormalizer(BOXPLOT, normalizeBoxPlot);
+  function getBoxPlotType(extent) {
+    if (vega.isNumber(extent)) {
+      return 'tukey';
+    } // Ham: If we ever want to, we could add another extent syntax `{kIQR: number}` for the original [Q1-k*IQR, Q3+k*IQR] whisker and call this boxPlotType = `kIQR`. However, I'm not exposing this for now.
+
+
+    return extent;
+  }
+  function normalizeBoxPlot(spec, _ref) {
+    var _markDef$extent;
+
+    let {
+      config
+    } = _ref;
+    // Need to initEncoding first so we can infer type
+    spec = { ...spec,
+      encoding: normalizeEncoding(spec.encoding, config)
+    };
+    const {
+      mark,
+      encoding: _encoding,
+      params,
+      projection: _p,
+      ...outerSpec
+    } = spec;
+    const markDef = isMarkDef(mark) ? mark : {
+      type: mark
+    }; // TODO(https://github.com/vega/vega-lite/issues/3702): add selection support
+
+    if (params) {
+      warn(selectionNotSupported('boxplot'));
+    }
+
+    const extent = (_markDef$extent = markDef.extent) !== null && _markDef$extent !== void 0 ? _markDef$extent : config.boxplot.extent;
+    const sizeValue = getMarkPropOrConfig('size', markDef, // TODO: https://github.com/vega/vega-lite/issues/6245
+    config);
+    const boxPlotType = getBoxPlotType(extent);
+    const {
+      bins,
+      timeUnits,
+      transform,
+      continuousAxisChannelDef,
+      continuousAxis,
+      groupby,
+      aggregate,
+      encodingWithoutContinuousAxis,
+      ticksOrient,
+      boxOrient,
+      customTooltipWithoutAggregatedField
+    } = boxParams(spec, extent, config);
+    const {
+      color,
+      size,
+      ...encodingWithoutSizeColorAndContinuousAxis
+    } = encodingWithoutContinuousAxis;
+
+    const makeBoxPlotPart = sharedEncoding => {
+      return makeCompositeAggregatePartFactory(markDef, continuousAxis, continuousAxisChannelDef, sharedEncoding, config.boxplot);
+    };
+
+    const makeBoxPlotExtent = makeBoxPlotPart(encodingWithoutSizeColorAndContinuousAxis);
+    const makeBoxPlotBox = makeBoxPlotPart(encodingWithoutContinuousAxis);
+    const makeBoxPlotMidTick = makeBoxPlotPart({ ...encodingWithoutSizeColorAndContinuousAxis,
+      ...(size ? {
+        size
+      } : {})
+    });
+    const fiveSummaryTooltipEncoding = getCompositeMarkTooltip([{
+      fieldPrefix: boxPlotType === 'min-max' ? 'upper_whisker_' : 'max_',
+      titlePrefix: 'Max'
+    }, {
+      fieldPrefix: 'upper_box_',
+      titlePrefix: 'Q3'
+    }, {
+      fieldPrefix: 'mid_box_',
+      titlePrefix: 'Median'
+    }, {
+      fieldPrefix: 'lower_box_',
+      titlePrefix: 'Q1'
+    }, {
+      fieldPrefix: boxPlotType === 'min-max' ? 'lower_whisker_' : 'min_',
+      titlePrefix: 'Min'
+    }], continuousAxisChannelDef, encodingWithoutContinuousAxis); // ## Whisker Layers
+
+    const endTick = {
+      type: 'tick',
+      color: 'black',
+      opacity: 1,
+      orient: ticksOrient,
+      invalid: null,
+      aria: false
+    };
+    const whiskerTooltipEncoding = boxPlotType === 'min-max' ? fiveSummaryTooltipEncoding // for min-max, show five-summary tooltip for whisker
+    : // for tukey / k-IQR, just show upper/lower-whisker
+    getCompositeMarkTooltip([{
+      fieldPrefix: 'upper_whisker_',
+      titlePrefix: 'Upper Whisker'
+    }, {
+      fieldPrefix: 'lower_whisker_',
+      titlePrefix: 'Lower Whisker'
+    }], continuousAxisChannelDef, encodingWithoutContinuousAxis);
+    const whiskerLayers = [...makeBoxPlotExtent({
+      partName: 'rule',
+      mark: {
+        type: 'rule',
+        invalid: null,
+        aria: false
+      },
+      positionPrefix: 'lower_whisker',
+      endPositionPrefix: 'lower_box',
+      extraEncoding: whiskerTooltipEncoding
+    }), ...makeBoxPlotExtent({
+      partName: 'rule',
+      mark: {
+        type: 'rule',
+        invalid: null,
+        aria: false
+      },
+      positionPrefix: 'upper_box',
+      endPositionPrefix: 'upper_whisker',
+      extraEncoding: whiskerTooltipEncoding
+    }), ...makeBoxPlotExtent({
+      partName: 'ticks',
+      mark: endTick,
+      positionPrefix: 'lower_whisker',
+      extraEncoding: whiskerTooltipEncoding
+    }), ...makeBoxPlotExtent({
+      partName: 'ticks',
+      mark: endTick,
+      positionPrefix: 'upper_whisker',
+      extraEncoding: whiskerTooltipEncoding
+    })]; // ## Box Layers
+    // TODO: support hiding certain mark parts
+
+    const boxLayers = [...(boxPlotType !== 'tukey' ? whiskerLayers : []), ...makeBoxPlotBox({
+      partName: 'box',
+      mark: {
+        type: 'bar',
+        ...(sizeValue ? {
+          size: sizeValue
+        } : {}),
+        orient: boxOrient,
+        invalid: null,
+        ariaRoleDescription: 'box'
+      },
+      positionPrefix: 'lower_box',
+      endPositionPrefix: 'upper_box',
+      extraEncoding: fiveSummaryTooltipEncoding
+    }), ...makeBoxPlotMidTick({
+      partName: 'median',
+      mark: {
+        type: 'tick',
+        invalid: null,
+        ...(vega.isObject(config.boxplot.median) && config.boxplot.median.color ? {
+          color: config.boxplot.median.color
+        } : {}),
+        ...(sizeValue ? {
+          size: sizeValue
+        } : {}),
+        orient: ticksOrient,
+        aria: false
+      },
+      positionPrefix: 'mid_box',
+      extraEncoding: fiveSummaryTooltipEncoding
+    })];
+
+    if (boxPlotType === 'min-max') {
+      var _outerSpec$transform;
+
+      return { ...outerSpec,
+        transform: ((_outerSpec$transform = outerSpec.transform) !== null && _outerSpec$transform !== void 0 ? _outerSpec$transform : []).concat(transform),
+        layer: boxLayers
+      };
+    } // Tukey Box Plot
+
+
+    const lowerBoxExpr = "datum[\"lower_box_".concat(continuousAxisChannelDef.field, "\"]");
+    const upperBoxExpr = "datum[\"upper_box_".concat(continuousAxisChannelDef.field, "\"]");
+    const iqrExpr = "(".concat(upperBoxExpr, " - ").concat(lowerBoxExpr, ")");
+    const lowerWhiskerExpr = "".concat(lowerBoxExpr, " - ").concat(extent, " * ").concat(iqrExpr);
+    const upperWhiskerExpr = "".concat(upperBoxExpr, " + ").concat(extent, " * ").concat(iqrExpr);
+    const fieldExpr = "datum[\"".concat(continuousAxisChannelDef.field, "\"]");
+    const joinaggregateTransform = {
+      joinaggregate: boxParamsQuartiles(continuousAxisChannelDef.field),
+      groupby
+    };
+    const filteredWhiskerSpec = {
+      transform: [{
+        filter: "(".concat(lowerWhiskerExpr, " <= ").concat(fieldExpr, ") && (").concat(fieldExpr, " <= ").concat(upperWhiskerExpr, ")")
+      }, {
+        aggregate: [{
+          op: 'min',
+          field: continuousAxisChannelDef.field,
+          as: "lower_whisker_".concat(continuousAxisChannelDef.field)
+        }, {
+          op: 'max',
+          field: continuousAxisChannelDef.field,
+          as: "upper_whisker_".concat(continuousAxisChannelDef.field)
+        }, // preserve lower_box / upper_box
+        {
+          op: 'min',
+          field: "lower_box_".concat(continuousAxisChannelDef.field),
+          as: "lower_box_".concat(continuousAxisChannelDef.field)
+        }, {
+          op: 'max',
+          field: "upper_box_".concat(continuousAxisChannelDef.field),
+          as: "upper_box_".concat(continuousAxisChannelDef.field)
+        }, ...aggregate],
+        groupby
+      }],
+      layer: whiskerLayers
+    };
+    const {
+      tooltip,
+      ...encodingWithoutSizeColorContinuousAxisAndTooltip
+    } = encodingWithoutSizeColorAndContinuousAxis;
+    const {
+      scale,
+      axis
+    } = continuousAxisChannelDef;
+    const title = getTitle(continuousAxisChannelDef);
+    const axisWithoutTitle = omit(axis, ['title']);
+    const outlierLayersMixins = partLayerMixins(markDef, 'outliers', config.boxplot, {
+      transform: [{
+        filter: "(".concat(fieldExpr, " < ").concat(lowerWhiskerExpr, ") || (").concat(fieldExpr, " > ").concat(upperWhiskerExpr, ")")
+      }],
+      mark: 'point',
+      encoding: {
+        [continuousAxis]: {
+          field: continuousAxisChannelDef.field,
+          type: continuousAxisChannelDef.type,
+          ...(title !== undefined ? {
+            title
+          } : {}),
+          ...(scale !== undefined ? {
+            scale
+          } : {}),
+          // add axis without title since we already added the title above
+          ...(isEmpty(axisWithoutTitle) ? {} : {
+            axis: axisWithoutTitle
+          })
+        },
+        ...encodingWithoutSizeColorContinuousAxisAndTooltip,
+        ...(color ? {
+          color
+        } : {}),
+        ...(customTooltipWithoutAggregatedField ? {
+          tooltip: customTooltipWithoutAggregatedField
+        } : {})
+      }
+    })[0];
+    let filteredLayersMixins;
+    const filteredLayersMixinsTransforms = [...bins, ...timeUnits, joinaggregateTransform];
+
+    if (outlierLayersMixins) {
+      filteredLayersMixins = {
+        transform: filteredLayersMixinsTransforms,
+        layer: [outlierLayersMixins, filteredWhiskerSpec]
+      };
+    } else {
+      filteredLayersMixins = filteredWhiskerSpec;
+      filteredLayersMixins.transform.unshift(...filteredLayersMixinsTransforms);
+    }
+
+    return { ...outerSpec,
+      layer: [filteredLayersMixins, {
+        // boxplot
+        transform,
+        layer: boxLayers
+      }]
+    };
+  }
+
+  function boxParamsQuartiles(continousAxisField) {
+    return [{
+      op: 'q1',
+      field: continousAxisField,
+      as: "lower_box_".concat(continousAxisField)
+    }, {
+      op: 'q3',
+      field: continousAxisField,
+      as: "upper_box_".concat(continousAxisField)
+    }];
+  }
+
+  function boxParams(spec, extent, config) {
+    const orient = compositeMarkOrient(spec, BOXPLOT);
+    const {
+      continuousAxisChannelDef,
+      continuousAxis
+    } = compositeMarkContinuousAxis(spec, orient, BOXPLOT);
+    const continuousFieldName = continuousAxisChannelDef.field;
+    const boxPlotType = getBoxPlotType(extent);
+    const boxplotSpecificAggregate = [...boxParamsQuartiles(continuousFieldName), {
+      op: 'median',
+      field: continuousFieldName,
+      as: "mid_box_".concat(continuousFieldName)
+    }, {
+      op: 'min',
+      field: continuousFieldName,
+      as: (boxPlotType === 'min-max' ? 'lower_whisker_' : 'min_') + continuousFieldName
+    }, {
+      op: 'max',
+      field: continuousFieldName,
+      as: (boxPlotType === 'min-max' ? 'upper_whisker_' : 'max_') + continuousFieldName
+    }];
+    const postAggregateCalculates = boxPlotType === 'min-max' || boxPlotType === 'tukey' ? [] : [// This is for the  original k-IQR, which we do not expose
+    {
+      calculate: "datum[\"upper_box_".concat(continuousFieldName, "\"] - datum[\"lower_box_").concat(continuousFieldName, "\"]"),
+      as: "iqr_".concat(continuousFieldName)
+    }, {
+      calculate: "min(datum[\"upper_box_".concat(continuousFieldName, "\"] + datum[\"iqr_").concat(continuousFieldName, "\"] * ").concat(extent, ", datum[\"max_").concat(continuousFieldName, "\"])"),
+      as: "upper_whisker_".concat(continuousFieldName)
+    }, {
+      calculate: "max(datum[\"lower_box_".concat(continuousFieldName, "\"] - datum[\"iqr_").concat(continuousFieldName, "\"] * ").concat(extent, ", datum[\"min_").concat(continuousFieldName, "\"])"),
+      as: "lower_whisker_".concat(continuousFieldName)
+    }];
+    const {
+      [continuousAxis]: oldContinuousAxisChannelDef,
+      ...oldEncodingWithoutContinuousAxis
+    } = spec.encoding;
+    const {
+      customTooltipWithoutAggregatedField,
+      filteredEncoding
+    } = filterTooltipWithAggregatedField(oldEncodingWithoutContinuousAxis);
+    const {
+      bins,
+      timeUnits,
+      aggregate,
+      groupby,
+      encoding: encodingWithoutContinuousAxis
+    } = extractTransformsFromEncoding(filteredEncoding, config);
+    const ticksOrient = orient === 'vertical' ? 'horizontal' : 'vertical';
+    const boxOrient = orient;
+    const transform = [...bins, ...timeUnits, {
+      aggregate: [...aggregate, ...boxplotSpecificAggregate],
+      groupby
+    }, ...postAggregateCalculates];
+    return {
+      bins,
+      timeUnits,
+      transform,
+      groupby,
+      aggregate,
+      continuousAxisChannelDef,
+      continuousAxis,
+      encodingWithoutContinuousAxis,
+      ticksOrient,
+      boxOrient,
+      customTooltipWithoutAggregatedField
+    };
+  }
+
+  const ERRORBAR = 'errorbar';
+  const ERRORBAR_PARTS = ['ticks', 'rule'];
+  const errorBarNormalizer = new CompositeMarkNormalizer(ERRORBAR, normalizeErrorBar);
+  function normalizeErrorBar(spec, _ref) {
+    let {
+      config
+    } = _ref;
+    // Need to initEncoding first so we can infer type
+    spec = { ...spec,
+      encoding: normalizeEncoding(spec.encoding, config)
+    };
+    const {
+      transform,
+      continuousAxisChannelDef,
+      continuousAxis,
+      encodingWithoutContinuousAxis,
+      ticksOrient,
+      markDef,
+      outerSpec,
+      tooltipEncoding
+    } = errorBarParams(spec, ERRORBAR, config);
+    delete encodingWithoutContinuousAxis['size'];
+    const makeErrorBarPart = makeCompositeAggregatePartFactory(markDef, continuousAxis, continuousAxisChannelDef, encodingWithoutContinuousAxis, config.errorbar);
+    const thickness = markDef.thickness;
+    const size = markDef.size;
+    const tick = {
+      type: 'tick',
+      orient: ticksOrient,
+      aria: false,
+      ...(thickness !== undefined ? {
+        thickness
+      } : {}),
+      ...(size !== undefined ? {
+        size
+      } : {})
+    };
+    const layer = [...makeErrorBarPart({
+      partName: 'ticks',
+      mark: tick,
+      positionPrefix: 'lower',
+      extraEncoding: tooltipEncoding
+    }), ...makeErrorBarPart({
+      partName: 'ticks',
+      mark: tick,
+      positionPrefix: 'upper',
+      extraEncoding: tooltipEncoding
+    }), ...makeErrorBarPart({
+      partName: 'rule',
+      mark: {
+        type: 'rule',
+        ariaRoleDescription: 'errorbar',
+        ...(thickness !== undefined ? {
+          size: thickness
+        } : {})
+      },
+      positionPrefix: 'lower',
+      endPositionPrefix: 'upper',
+      extraEncoding: tooltipEncoding
+    })];
+    return { ...outerSpec,
+      transform,
+      ...(layer.length > 1 ? {
+        layer
+      } : { ...layer[0]
+      })
+    };
+  }
+
+  function errorBarOrientAndInputType(spec, compositeMark) {
+    const {
+      encoding
+    } = spec;
+
+    if (errorBarIsInputTypeRaw(encoding)) {
+      return {
+        orient: compositeMarkOrient(spec, compositeMark),
+        inputType: 'raw'
+      };
+    }
+
+    const isTypeAggregatedUpperLower = errorBarIsInputTypeAggregatedUpperLower(encoding);
+    const isTypeAggregatedError = errorBarIsInputTypeAggregatedError(encoding);
+    const x = encoding.x;
+    const y = encoding.y;
+
+    if (isTypeAggregatedUpperLower) {
+      // type is aggregated-upper-lower
+      if (isTypeAggregatedError) {
+        throw new Error("".concat(compositeMark, " cannot be both type aggregated-upper-lower and aggregated-error"));
+      }
+
+      const x2 = encoding.x2;
+      const y2 = encoding.y2;
+
+      if (isFieldOrDatumDef(x2) && isFieldOrDatumDef(y2)) {
+        // having both x, x2 and y, y2
+        throw new Error("".concat(compositeMark, " cannot have both x2 and y2"));
+      } else if (isFieldOrDatumDef(x2)) {
+        if (isContinuousFieldOrDatumDef(x)) {
+          // having x, x2 quantitative and field y, y2 are not specified
+          return {
+            orient: 'horizontal',
+            inputType: 'aggregated-upper-lower'
+          };
+        } else {
+          // having x, x2 that are not both quantitative
+          throw new Error("Both x and x2 have to be quantitative in ".concat(compositeMark));
+        }
+      } else if (isFieldOrDatumDef(y2)) {
+        // y2 is a FieldDef
+        if (isContinuousFieldOrDatumDef(y)) {
+          // having y, y2 quantitative and field x, x2 are not specified
+          return {
+            orient: 'vertical',
+            inputType: 'aggregated-upper-lower'
+          };
+        } else {
+          // having y, y2 that are not both quantitative
+          throw new Error("Both y and y2 have to be quantitative in ".concat(compositeMark));
+        }
+      }
+
+      throw new Error('No ranged axis');
+    } else {
+      // type is aggregated-error
+      const xError = encoding.xError;
+      const xError2 = encoding.xError2;
+      const yError = encoding.yError;
+      const yError2 = encoding.yError2;
+
+      if (isFieldOrDatumDef(xError2) && !isFieldOrDatumDef(xError)) {
+        // having xError2 without xError
+        throw new Error("".concat(compositeMark, " cannot have xError2 without xError"));
+      }
+
+      if (isFieldOrDatumDef(yError2) && !isFieldOrDatumDef(yError)) {
+        // having yError2 without yError
+        throw new Error("".concat(compositeMark, " cannot have yError2 without yError"));
+      }
+
+      if (isFieldOrDatumDef(xError) && isFieldOrDatumDef(yError)) {
+        // having both xError and yError
+        throw new Error("".concat(compositeMark, " cannot have both xError and yError with both are quantiative"));
+      } else if (isFieldOrDatumDef(xError)) {
+        if (isContinuousFieldOrDatumDef(x)) {
+          // having x and xError that are all quantitative
+          return {
+            orient: 'horizontal',
+            inputType: 'aggregated-error'
+          };
+        } else {
+          // having x, xError, and xError2 that are not all quantitative
+          throw new Error('All x, xError, and xError2 (if exist) have to be quantitative');
+        }
+      } else if (isFieldOrDatumDef(yError)) {
+        if (isContinuousFieldOrDatumDef(y)) {
+          // having y and yError that are all quantitative
+          return {
+            orient: 'vertical',
+            inputType: 'aggregated-error'
+          };
+        } else {
+          // having y, yError, and yError2 that are not all quantitative
+          throw new Error('All y, yError, and yError2 (if exist) have to be quantitative');
+        }
+      }
+
+      throw new Error('No ranged axis');
+    }
+  }
+
+  function errorBarIsInputTypeRaw(encoding) {
+    return (isFieldOrDatumDef(encoding.x) || isFieldOrDatumDef(encoding.y)) && !isFieldOrDatumDef(encoding.x2) && !isFieldOrDatumDef(encoding.y2) && !isFieldOrDatumDef(encoding.xError) && !isFieldOrDatumDef(encoding.xError2) && !isFieldOrDatumDef(encoding.yError) && !isFieldOrDatumDef(encoding.yError2);
+  }
+
+  function errorBarIsInputTypeAggregatedUpperLower(encoding) {
+    return isFieldOrDatumDef(encoding.x2) || isFieldOrDatumDef(encoding.y2);
+  }
+
+  function errorBarIsInputTypeAggregatedError(encoding) {
+    return isFieldOrDatumDef(encoding.xError) || isFieldOrDatumDef(encoding.xError2) || isFieldOrDatumDef(encoding.yError) || isFieldOrDatumDef(encoding.yError2);
+  }
+
+  function errorBarParams(spec, compositeMark, config) {
+    var _outerSpec$transform;
+
+    // TODO: use selection
+    const {
+      mark,
+      encoding,
+      params,
+      projection: _p,
+      ...outerSpec
+    } = spec;
+    const markDef = isMarkDef(mark) ? mark : {
+      type: mark
+    }; // TODO(https://github.com/vega/vega-lite/issues/3702): add selection support
+
+    if (params) {
+      warn(selectionNotSupported(compositeMark));
+    }
+
+    const {
+      orient,
+      inputType
+    } = errorBarOrientAndInputType(spec, compositeMark);
+    const {
+      continuousAxisChannelDef,
+      continuousAxisChannelDef2,
+      continuousAxisChannelDefError,
+      continuousAxisChannelDefError2,
+      continuousAxis
+    } = compositeMarkContinuousAxis(spec, orient, compositeMark);
+    const {
+      errorBarSpecificAggregate,
+      postAggregateCalculates,
+      tooltipSummary,
+      tooltipTitleWithFieldName
+    } = errorBarAggregationAndCalculation(markDef, continuousAxisChannelDef, continuousAxisChannelDef2, continuousAxisChannelDefError, continuousAxisChannelDefError2, inputType, compositeMark, config);
+    const {
+      [continuousAxis]: oldContinuousAxisChannelDef,
+      [continuousAxis === 'x' ? 'x2' : 'y2']: oldContinuousAxisChannelDef2,
+      [continuousAxis === 'x' ? 'xError' : 'yError']: oldContinuousAxisChannelDefError,
+      [continuousAxis === 'x' ? 'xError2' : 'yError2']: oldContinuousAxisChannelDefError2,
+      ...oldEncodingWithoutContinuousAxis
+    } = encoding;
+    const {
+      bins,
+      timeUnits,
+      aggregate: oldAggregate,
+      groupby: oldGroupBy,
+      encoding: encodingWithoutContinuousAxis
+    } = extractTransformsFromEncoding(oldEncodingWithoutContinuousAxis, config);
+    const aggregate = [...oldAggregate, ...errorBarSpecificAggregate];
+    const groupby = inputType !== 'raw' ? [] : oldGroupBy;
+    const tooltipEncoding = getCompositeMarkTooltip(tooltipSummary, continuousAxisChannelDef, encodingWithoutContinuousAxis, tooltipTitleWithFieldName);
+    return {
+      transform: [...((_outerSpec$transform = outerSpec.transform) !== null && _outerSpec$transform !== void 0 ? _outerSpec$transform : []), ...bins, ...timeUnits, ...(aggregate.length === 0 ? [] : [{
+        aggregate,
+        groupby
+      }]), ...postAggregateCalculates],
+      groupby,
+      continuousAxisChannelDef,
+      continuousAxis,
+      encodingWithoutContinuousAxis,
+      ticksOrient: orient === 'vertical' ? 'horizontal' : 'vertical',
+      markDef,
+      outerSpec,
+      tooltipEncoding
+    };
+  }
+
+  function errorBarAggregationAndCalculation(markDef, continuousAxisChannelDef, continuousAxisChannelDef2, continuousAxisChannelDefError, continuousAxisChannelDefError2, inputType, compositeMark, config) {
+    let errorBarSpecificAggregate = [];
+    let postAggregateCalculates = [];
+    const continuousFieldName = continuousAxisChannelDef.field;
+    let tooltipSummary;
+    let tooltipTitleWithFieldName = false;
+
+    if (inputType === 'raw') {
+      const center = markDef.center ? markDef.center : markDef.extent ? markDef.extent === 'iqr' ? 'median' : 'mean' : config.errorbar.center;
+      const extent = markDef.extent ? markDef.extent : center === 'mean' ? 'stderr' : 'iqr';
+
+      if (center === 'median' !== (extent === 'iqr')) {
+        warn(errorBarCenterIsUsedWithWrongExtent(center, extent, compositeMark));
+      }
+
+      if (extent === 'stderr' || extent === 'stdev') {
+        errorBarSpecificAggregate = [{
+          op: extent,
+          field: continuousFieldName,
+          as: "extent_".concat(continuousFieldName)
+        }, {
+          op: center,
+          field: continuousFieldName,
+          as: "center_".concat(continuousFieldName)
+        }];
+        postAggregateCalculates = [{
+          calculate: "datum[\"center_".concat(continuousFieldName, "\"] + datum[\"extent_").concat(continuousFieldName, "\"]"),
+          as: "upper_".concat(continuousFieldName)
+        }, {
+          calculate: "datum[\"center_".concat(continuousFieldName, "\"] - datum[\"extent_").concat(continuousFieldName, "\"]"),
+          as: "lower_".concat(continuousFieldName)
+        }];
+        tooltipSummary = [{
+          fieldPrefix: 'center_',
+          titlePrefix: titleCase(center)
+        }, {
+          fieldPrefix: 'upper_',
+          titlePrefix: getTitlePrefix(center, extent, '+')
+        }, {
+          fieldPrefix: 'lower_',
+          titlePrefix: getTitlePrefix(center, extent, '-')
+        }];
+        tooltipTitleWithFieldName = true;
+      } else {
+        let centerOp;
+        let lowerExtentOp;
+        let upperExtentOp;
+
+        if (extent === 'ci') {
+          centerOp = 'mean';
+          lowerExtentOp = 'ci0';
+          upperExtentOp = 'ci1';
+        } else {
+          centerOp = 'median';
+          lowerExtentOp = 'q1';
+          upperExtentOp = 'q3';
+        }
+
+        errorBarSpecificAggregate = [{
+          op: lowerExtentOp,
+          field: continuousFieldName,
+          as: "lower_".concat(continuousFieldName)
+        }, {
+          op: upperExtentOp,
+          field: continuousFieldName,
+          as: "upper_".concat(continuousFieldName)
+        }, {
+          op: centerOp,
+          field: continuousFieldName,
+          as: "center_".concat(continuousFieldName)
+        }];
+        tooltipSummary = [{
+          fieldPrefix: 'upper_',
+          titlePrefix: title({
+            field: continuousFieldName,
+            aggregate: upperExtentOp,
+            type: 'quantitative'
+          }, config, {
+            allowDisabling: false
+          })
+        }, {
+          fieldPrefix: 'lower_',
+          titlePrefix: title({
+            field: continuousFieldName,
+            aggregate: lowerExtentOp,
+            type: 'quantitative'
+          }, config, {
+            allowDisabling: false
+          })
+        }, {
+          fieldPrefix: 'center_',
+          titlePrefix: title({
+            field: continuousFieldName,
+            aggregate: centerOp,
+            type: 'quantitative'
+          }, config, {
+            allowDisabling: false
+          })
+        }];
+      }
+    } else {
+      if (markDef.center || markDef.extent) {
+        warn(errorBarCenterAndExtentAreNotNeeded(markDef.center, markDef.extent));
+      }
+
+      if (inputType === 'aggregated-upper-lower') {
+        tooltipSummary = [];
+        postAggregateCalculates = [{
+          calculate: "datum[\"".concat(continuousAxisChannelDef2.field, "\"]"),
+          as: "upper_".concat(continuousFieldName)
+        }, {
+          calculate: "datum[\"".concat(continuousFieldName, "\"]"),
+          as: "lower_".concat(continuousFieldName)
+        }];
+      } else if (inputType === 'aggregated-error') {
+        tooltipSummary = [{
+          fieldPrefix: '',
+          titlePrefix: continuousFieldName
+        }];
+        postAggregateCalculates = [{
+          calculate: "datum[\"".concat(continuousFieldName, "\"] + datum[\"").concat(continuousAxisChannelDefError.field, "\"]"),
+          as: "upper_".concat(continuousFieldName)
+        }];
+
+        if (continuousAxisChannelDefError2) {
+          postAggregateCalculates.push({
+            calculate: "datum[\"".concat(continuousFieldName, "\"] + datum[\"").concat(continuousAxisChannelDefError2.field, "\"]"),
+            as: "lower_".concat(continuousFieldName)
+          });
+        } else {
+          postAggregateCalculates.push({
+            calculate: "datum[\"".concat(continuousFieldName, "\"] - datum[\"").concat(continuousAxisChannelDefError.field, "\"]"),
+            as: "lower_".concat(continuousFieldName)
+          });
+        }
+      }
+
+      for (const postAggregateCalculate of postAggregateCalculates) {
+        tooltipSummary.push({
+          fieldPrefix: postAggregateCalculate.as.substring(0, 6),
+          titlePrefix: replaceAll(replaceAll(postAggregateCalculate.calculate, 'datum["', ''), '"]', '')
+        });
+      }
+    }
+
+    return {
+      postAggregateCalculates,
+      errorBarSpecificAggregate,
+      tooltipSummary,
+      tooltipTitleWithFieldName
+    };
+  }
+
+  function getTitlePrefix(center, extent, operation) {
+    return "".concat(titleCase(center), " ").concat(operation, " ").concat(extent);
+  }
+
+  const ERRORBAND = 'errorband';
+  const ERRORBAND_PARTS = ['band', 'borders'];
+  const errorBandNormalizer = new CompositeMarkNormalizer(ERRORBAND, normalizeErrorBand);
+  function normalizeErrorBand(spec, _ref) {
+    let {
+      config
+    } = _ref;
+    // Need to initEncoding first so we can infer type
+    spec = { ...spec,
+      encoding: normalizeEncoding(spec.encoding, config)
+    };
+    const {
+      transform,
+      continuousAxisChannelDef,
+      continuousAxis,
+      encodingWithoutContinuousAxis,
+      markDef,
+      outerSpec,
+      tooltipEncoding
+    } = errorBarParams(spec, ERRORBAND, config);
+    const errorBandDef = markDef;
+    const makeErrorBandPart = makeCompositeAggregatePartFactory(errorBandDef, continuousAxis, continuousAxisChannelDef, encodingWithoutContinuousAxis, config.errorband);
+    const is2D = spec.encoding.x !== undefined && spec.encoding.y !== undefined;
+    let bandMark = {
+      type: is2D ? 'area' : 'rect'
+    };
+    let bordersMark = {
+      type: is2D ? 'line' : 'rule'
+    };
+    const interpolate = { ...(errorBandDef.interpolate ? {
+        interpolate: errorBandDef.interpolate
+      } : {}),
+      ...(errorBandDef.tension && errorBandDef.interpolate ? {
+        tension: errorBandDef.tension
+      } : {})
+    };
+
+    if (is2D) {
+      bandMark = { ...bandMark,
+        ...interpolate,
+        ariaRoleDescription: 'errorband'
+      };
+      bordersMark = { ...bordersMark,
+        ...interpolate,
+        aria: false
+      };
+    } else if (errorBandDef.interpolate) {
+      warn(errorBand1DNotSupport('interpolate'));
+    } else if (errorBandDef.tension) {
+      warn(errorBand1DNotSupport('tension'));
+    }
+
+    return { ...outerSpec,
+      transform,
+      layer: [...makeErrorBandPart({
+        partName: 'band',
+        mark: bandMark,
+        positionPrefix: 'lower',
+        endPositionPrefix: 'upper',
+        extraEncoding: tooltipEncoding
+      }), ...makeErrorBandPart({
+        partName: 'borders',
+        mark: bordersMark,
+        positionPrefix: 'lower',
+        extraEncoding: tooltipEncoding
+      }), ...makeErrorBandPart({
+        partName: 'borders',
+        mark: bordersMark,
+        positionPrefix: 'upper',
+        extraEncoding: tooltipEncoding
+      })]
+    };
+  }
+
+  /**
+   * Registry index for all composite mark's normalizer
+   */
+  const compositeMarkRegistry = {};
+  function add(mark, run, parts) {
+    const normalizer = new CompositeMarkNormalizer(mark, run);
+    compositeMarkRegistry[mark] = {
+      normalizer,
+      parts
+    };
+  }
+  function getAllCompositeMarks() {
+    return keys(compositeMarkRegistry);
+  }
+  add(BOXPLOT, normalizeBoxPlot, BOXPLOT_PARTS);
+  add(ERRORBAR, normalizeErrorBar, ERRORBAR_PARTS);
+  add(ERRORBAND, normalizeErrorBand, ERRORBAND_PARTS);
+
+  const VL_ONLY_LEGEND_CONFIG = ['gradientHorizontalMaxLength', 'gradientHorizontalMinLength', 'gradientVerticalMaxLength', 'gradientVerticalMinLength', 'unselectedOpacity'];
+
+  const HEADER_TITLE_PROPERTIES_MAP = {
+    titleAlign: 'align',
+    titleAnchor: 'anchor',
+    titleAngle: 'angle',
+    titleBaseline: 'baseline',
+    titleColor: 'color',
+    titleFont: 'font',
+    titleFontSize: 'fontSize',
+    titleFontStyle: 'fontStyle',
+    titleFontWeight: 'fontWeight',
+    titleLimit: 'limit',
+    titleLineHeight: 'lineHeight',
+    titleOrient: 'orient',
+    titlePadding: 'offset'
+  };
+  const HEADER_LABEL_PROPERTIES_MAP = {
+    labelAlign: 'align',
+    labelAnchor: 'anchor',
+    labelAngle: 'angle',
+    labelBaseline: 'baseline',
+    labelColor: 'color',
+    labelFont: 'font',
+    labelFontSize: 'fontSize',
+    labelFontStyle: 'fontStyle',
+    labelFontWeight: 'fontWeight',
+    labelLimit: 'limit',
+    labelLineHeight: 'lineHeight',
+    labelOrient: 'orient',
+    labelPadding: 'offset'
+  };
+  const HEADER_TITLE_PROPERTIES = keys(HEADER_TITLE_PROPERTIES_MAP);
+  const HEADER_LABEL_PROPERTIES = keys(HEADER_LABEL_PROPERTIES_MAP);
+  const HEADER_CONFIGS_INDEX = {
+    header: 1,
+    headerRow: 1,
+    headerColumn: 1,
+    headerFacet: 1
+  };
+  const HEADER_CONFIGS = keys(HEADER_CONFIGS_INDEX);
+
+  const LEGEND_SCALE_CHANNELS = ['size', 'shape', 'fill', 'stroke', 'strokeDash', 'strokeWidth', 'opacity'];
+  const defaultLegendConfig = {
+    gradientHorizontalMaxLength: 200,
+    gradientHorizontalMinLength: 100,
+    gradientVerticalMaxLength: 200,
+    gradientVerticalMinLength: 64,
+    // This is Vega's minimum.
+    unselectedOpacity: 0.35
+  };
+  const COMMON_LEGEND_PROPERTY_INDEX = {
+    aria: 1,
+    clipHeight: 1,
+    columnPadding: 1,
+    columns: 1,
+    cornerRadius: 1,
+    description: 1,
+    direction: 1,
+    fillColor: 1,
+    format: 1,
+    formatType: 1,
+    gradientLength: 1,
+    gradientOpacity: 1,
+    gradientStrokeColor: 1,
+    gradientStrokeWidth: 1,
+    gradientThickness: 1,
+    gridAlign: 1,
+    labelAlign: 1,
+    labelBaseline: 1,
+    labelColor: 1,
+    labelFont: 1,
+    labelFontSize: 1,
+    labelFontStyle: 1,
+    labelFontWeight: 1,
+    labelLimit: 1,
+    labelOffset: 1,
+    labelOpacity: 1,
+    labelOverlap: 1,
+    labelPadding: 1,
+    labelSeparation: 1,
+    legendX: 1,
+    legendY: 1,
+    offset: 1,
+    orient: 1,
+    padding: 1,
+    rowPadding: 1,
+    strokeColor: 1,
+    symbolDash: 1,
+    symbolDashOffset: 1,
+    symbolFillColor: 1,
+    symbolLimit: 1,
+    symbolOffset: 1,
+    symbolOpacity: 1,
+    symbolSize: 1,
+    symbolStrokeColor: 1,
+    symbolStrokeWidth: 1,
+    symbolType: 1,
+    tickCount: 1,
+    tickMinStep: 1,
+    title: 1,
+    titleAlign: 1,
+    titleAnchor: 1,
+    titleBaseline: 1,
+    titleColor: 1,
+    titleFont: 1,
+    titleFontSize: 1,
+    titleFontStyle: 1,
+    titleFontWeight: 1,
+    titleLimit: 1,
+    titleLineHeight: 1,
+    titleOpacity: 1,
+    titleOrient: 1,
+    titlePadding: 1,
+    type: 1,
+    values: 1,
+    zindex: 1
+  };
+
+  const SELECTION_ID = '_vgsid_';
+  const defaultConfig$1 = {
+    point: {
+      on: 'click',
+      fields: [SELECTION_ID],
+      toggle: 'event.shiftKey',
+      resolve: 'global',
+      clear: 'dblclick'
+    },
+    interval: {
+      on: '[mousedown, window:mouseup] > window:mousemove!',
+      encodings: ['x', 'y'],
+      translate: '[mousedown, window:mouseup] > window:mousemove!',
+      zoom: 'wheel!',
+      mark: {
+        fill: '#333',
+        fillOpacity: 0.125,
+        stroke: 'white'
+      },
+      resolve: 'global',
+      clear: 'dblclick'
+    }
+  };
+  function isLegendBinding(bind) {
+    return !!bind && (bind === 'legend' || !!bind.legend);
+  }
+  function isLegendStreamBinding(bind) {
+    return isLegendBinding(bind) && vega.isObject(bind);
+  }
+  function isSelectionParameter(param) {
+    return !!param['select'];
+  }
+
+  function assembleParameterSignals(params) {
+    const signals = [];
+
+    for (const param of params || []) {
+      // Selection parameters are handled separately via assembleSelectionTopLevelSignals
+      // and assembleSignals methods registered on the Model.
+      if (isSelectionParameter(param)) continue;
+      const {
+        expr,
+        bind,
+        ...rest
+      } = param;
+
+      if (bind && expr) {
+        // Vega's InitSignal -- apply expr to "init"
+        const signal = { ...rest,
+          bind,
+          init: expr
+        };
+        signals.push(signal);
+      } else {
+        const signal = { ...rest,
+          ...(expr ? {
+            update: expr
+          } : {}),
+          ...(bind ? {
+            bind
+          } : {})
+        };
+        signals.push(signal);
+      }
+    }
+
+    return signals;
+  }
+
+  /**
+   * Base layout mixins for V/HConcatSpec, which should not have RowCol<T> generic fo its property.
+   */
+
+  /**
+   * Base interface for a generalized concatenation specification.
+   */
+
+  /**
+   * Base interface for a vertical concatenation specification.
+   */
+
+  /**
+   * Base interface for a horizontal concatenation specification.
+   */
+
+  /** A concat spec without any shortcut/expansion syntax */
+  function isAnyConcatSpec(spec) {
+    return isVConcatSpec(spec) || isHConcatSpec(spec) || isConcatSpec(spec);
+  }
+  function isConcatSpec(spec) {
+    return 'concat' in spec;
+  }
+  function isVConcatSpec(spec) {
+    return 'vconcat' in spec;
+  }
+  function isHConcatSpec(spec) {
+    return 'hconcat' in spec;
+  }
+
+  function isFitType(autoSizeType) {
+    return autoSizeType === 'fit' || autoSizeType === 'fit-x' || autoSizeType === 'fit-y';
+  }
+  function getFitType(sizeType) {
+    return sizeType ? "fit-".concat(getPositionScaleChannel(sizeType)) : 'fit';
+  }
+  const TOP_LEVEL_PROPERTIES = ['background', 'padding' // We do not include "autosize" here as it is supported by only unit and layer specs and thus need to be normalized
+  ];
+  function extractTopLevelProperties(t, includeParams) {
+    const o = {};
+
+    for (const p of TOP_LEVEL_PROPERTIES) {
+      if (t && t[p] !== undefined) {
+        o[p] = signalRefOrValue(t[p]);
+      }
+    }
+
+    if (includeParams) {
+      o.params = t.params;
+    }
+
+    return o;
+  }
+
+  /**
+   * Common properties for all types of specification
+   */
+
+  function getStepFor(_ref) {
+    let {
+      step,
+      offsetIsDiscrete
+    } = _ref;
+
+    if (offsetIsDiscrete) {
+      var _step$for;
+
+      return (_step$for = step.for) !== null && _step$for !== void 0 ? _step$for : 'offset';
+    } else {
+      return 'position';
+    }
+  }
+  function isStep(size) {
+    return vega.isObject(size) && size['step'] !== undefined;
+  } // TODO(https://github.com/vega/vega-lite/issues/2503): Make this generic so we can support some form of top-down sizing.
+
+  /**
+   * Common properties for specifying width and height of unit and layer specifications.
+   */
+
+  function isFrameMixins(o) {
+    return o['view'] || o['width'] || o['height'];
+  }
+  const DEFAULT_SPACING = 20;
+  const COMPOSITION_LAYOUT_INDEX = {
+    align: 1,
+    bounds: 1,
+    center: 1,
+    columns: 1,
+    spacing: 1
+  };
+  const COMPOSITION_LAYOUT_PROPERTIES = keys(COMPOSITION_LAYOUT_INDEX);
+  function extractCompositionLayout(spec, specType, config) {
+    const compositionConfig = config[specType];
+    const layout = {}; // Apply config first
+
+    const {
+      spacing: spacingConfig,
+      columns
+    } = compositionConfig;
+
+    if (spacingConfig !== undefined) {
+      layout.spacing = spacingConfig;
+    }
+
+    if (columns !== undefined) {
+      if (isFacetSpec(spec) && !isFacetMapping(spec.facet) || isConcatSpec(spec)) {
+        layout.columns = columns;
+      }
+    }
+
+    if (isVConcatSpec(spec)) {
+      layout.columns = 1;
+    } // Then copy properties from the spec
+
+
+    for (const prop of COMPOSITION_LAYOUT_PROPERTIES) {
+      if (spec[prop] !== undefined) {
+        if (prop === 'spacing') {
+          var _spacing$row, _spacing$column;
+
+          const spacing = spec[prop];
+          layout[prop] = vega.isNumber(spacing) ? spacing : {
+            row: (_spacing$row = spacing.row) !== null && _spacing$row !== void 0 ? _spacing$row : spacingConfig,
+            column: (_spacing$column = spacing.column) !== null && _spacing$column !== void 0 ? _spacing$column : spacingConfig
+          };
+        } else {
+          layout[prop] = spec[prop];
+        }
+      }
+    }
+
+    return layout;
+  }
+
+  function getViewConfigContinuousSize(viewConfig, channel) {
+    var _viewConfig$channel;
+
+    return (_viewConfig$channel = viewConfig[channel]) !== null && _viewConfig$channel !== void 0 ? _viewConfig$channel : viewConfig[channel === 'width' ? 'continuousWidth' : 'continuousHeight']; // get width/height for backwards compatibility
+  }
+  function getViewConfigDiscreteStep(viewConfig, channel) {
+    const size = getViewConfigDiscreteSize(viewConfig, channel);
+    return isStep(size) ? size.step : DEFAULT_STEP;
+  }
+  function getViewConfigDiscreteSize(viewConfig, channel) {
+    var _viewConfig$channel2;
+
+    const size = (_viewConfig$channel2 = viewConfig[channel]) !== null && _viewConfig$channel2 !== void 0 ? _viewConfig$channel2 : viewConfig[channel === 'width' ? 'discreteWidth' : 'discreteHeight']; // get width/height for backwards compatibility
+
+    return getFirstDefined(size, {
+      step: viewConfig.step
+    });
+  }
+  const DEFAULT_STEP = 20;
+  const defaultViewConfig = {
+    continuousWidth: 200,
+    continuousHeight: 200,
+    step: DEFAULT_STEP
+  };
+  const defaultConfig = {
+    background: 'white',
+    padding: 5,
+    timeFormat: '%b %d, %Y',
+    countTitle: 'Count of Records',
+    view: defaultViewConfig,
+    mark: defaultMarkConfig,
+    arc: {},
+    area: {},
+    bar: defaultBarConfig,
+    circle: {},
+    geoshape: {},
+    image: {},
+    line: {},
+    point: {},
+    rect: defaultRectConfig,
+    rule: {
+      color: 'black'
+    },
+    // Need this to override default color in mark config
+    square: {},
+    text: {
+      color: 'black'
+    },
+    // Need this to override default color in mark config
+    tick: defaultTickConfig,
+    trail: {},
+    boxplot: {
+      size: 14,
+      extent: 1.5,
+      box: {},
+      median: {
+        color: 'white'
+      },
+      outliers: {},
+      rule: {},
+      ticks: null
+    },
+    errorbar: {
+      center: 'mean',
+      rule: true,
+      ticks: false
+    },
+    errorband: {
+      band: {
+        opacity: 0.3
+      },
+      borders: false
+    },
+    scale: defaultScaleConfig,
+    projection: {},
+    legend: defaultLegendConfig,
+    header: {
+      titlePadding: 10,
+      labelPadding: 10
+    },
+    headerColumn: {},
+    headerRow: {},
+    headerFacet: {},
+    selection: defaultConfig$1,
+    style: {},
+    title: {},
+    facet: {
+      spacing: DEFAULT_SPACING
+    },
+    concat: {
+      spacing: DEFAULT_SPACING
+    }
+  }; // Tableau10 color palette, copied from `vegaScale.scheme('tableau10')`
+
+  const tab10 = ['#4c78a8', '#f58518', '#e45756', '#72b7b2', '#54a24b', '#eeca3b', '#b279a2', '#ff9da6', '#9d755d', '#bab0ac'];
+  const DEFAULT_FONT_SIZE = {
+    text: 11,
+    guideLabel: 10,
+    guideTitle: 11,
+    groupTitle: 13,
+    groupSubtitle: 12
+  };
+  const DEFAULT_COLOR = {
+    blue: tab10[0],
+    orange: tab10[1],
+    red: tab10[2],
+    teal: tab10[3],
+    green: tab10[4],
+    yellow: tab10[5],
+    purple: tab10[6],
+    pink: tab10[7],
+    brown: tab10[8],
+    gray0: '#000',
+    gray1: '#111',
+    gray2: '#222',
+    gray3: '#333',
+    gray4: '#444',
+    gray5: '#555',
+    gray6: '#666',
+    gray7: '#777',
+    gray8: '#888',
+    gray9: '#999',
+    gray10: '#aaa',
+    gray11: '#bbb',
+    gray12: '#ccc',
+    gray13: '#ddd',
+    gray14: '#eee',
+    gray15: '#fff'
+  };
+  function colorSignalConfig() {
+    let color = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+    return {
+      signals: [{
+        name: 'color',
+        value: vega.isObject(color) ? { ...DEFAULT_COLOR,
+          ...color
+        } : DEFAULT_COLOR
+      }],
+      mark: {
+        color: {
+          signal: 'color.blue'
+        }
+      },
+      rule: {
+        color: {
+          signal: 'color.gray0'
+        }
+      },
+      text: {
+        color: {
+          signal: 'color.gray0'
+        }
+      },
+      style: {
+        'guide-label': {
+          fill: {
+            signal: 'color.gray0'
+          }
+        },
+        'guide-title': {
+          fill: {
+            signal: 'color.gray0'
+          }
+        },
+        'group-title': {
+          fill: {
+            signal: 'color.gray0'
+          }
+        },
+        'group-subtitle': {
+          fill: {
+            signal: 'color.gray0'
+          }
+        },
+        cell: {
+          stroke: {
+            signal: 'color.gray8'
+          }
+        }
+      },
+      axis: {
+        domainColor: {
+          signal: 'color.gray13'
+        },
+        gridColor: {
+          signal: 'color.gray8'
+        },
+        tickColor: {
+          signal: 'color.gray13'
+        }
+      },
+      range: {
+        category: [{
+          signal: 'color.blue'
+        }, {
+          signal: 'color.orange'
+        }, {
+          signal: 'color.red'
+        }, {
+          signal: 'color.teal'
+        }, {
+          signal: 'color.green'
+        }, {
+          signal: 'color.yellow'
+        }, {
+          signal: 'color.purple'
+        }, {
+          signal: 'color.pink'
+        }, {
+          signal: 'color.brown'
+        }, {
+          signal: 'color.grey8'
+        }]
+      }
+    };
+  }
+  function fontSizeSignalConfig(fontSize) {
+    return {
+      signals: [{
+        name: 'fontSize',
+        value: vega.isObject(fontSize) ? { ...DEFAULT_FONT_SIZE,
+          ...fontSize
+        } : DEFAULT_FONT_SIZE
+      }],
+      text: {
+        fontSize: {
+          signal: 'fontSize.text'
+        }
+      },
+      style: {
+        'guide-label': {
+          fontSize: {
+            signal: 'fontSize.guideLabel'
+          }
+        },
+        'guide-title': {
+          fontSize: {
+            signal: 'fontSize.guideTitle'
+          }
+        },
+        'group-title': {
+          fontSize: {
+            signal: 'fontSize.groupTitle'
+          }
+        },
+        'group-subtitle': {
+          fontSize: {
+            signal: 'fontSize.groupSubtitle'
+          }
+        }
+      }
+    };
+  }
+  function fontConfig(font) {
+    return {
+      text: {
+        font
+      },
+      style: {
+        'guide-label': {
+          font
+        },
+        'guide-title': {
+          font
+        },
+        'group-title': {
+          font
+        },
+        'group-subtitle': {
+          font
+        }
+      }
+    };
+  }
+
+  function getAxisConfigInternal(axisConfig) {
+    const props = keys(axisConfig || {});
+    const axisConfigInternal = {};
+
+    for (const prop of props) {
+      const val = axisConfig[prop];
+      axisConfigInternal[prop] = isConditionalAxisValue(val) ? signalOrValueRefWithCondition(val) : signalRefOrValue(val);
+    }
+
+    return axisConfigInternal;
+  }
+
+  function getStyleConfigInternal(styleConfig) {
+    const props = keys(styleConfig);
+    const styleConfigInternal = {};
+
+    for (const prop of props) {
+      // We need to cast to cheat a bit here since styleConfig can be either mark config or axis config
+      styleConfigInternal[prop] = getAxisConfigInternal(styleConfig[prop]);
+    }
+
+    return styleConfigInternal;
+  }
+
+  const configPropsWithExpr = [...MARK_CONFIGS, ...AXIS_CONFIGS, ...HEADER_CONFIGS, 'background', 'padding', 'legend', 'lineBreak', 'scale', 'style', 'title', 'view'];
+  /**
+   * Merge specified config with default config and config for the `color` flag,
+   * then replace all expressions with signals
+   */
+
+  function initConfig() {
+    let specifiedConfig = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+    const {
+      color,
+      font,
+      fontSize,
+      selection,
+      ...restConfig
+    } = specifiedConfig;
+    const mergedConfig = vega.mergeConfig({}, duplicate(defaultConfig), font ? fontConfig(font) : {}, color ? colorSignalConfig(color) : {}, fontSize ? fontSizeSignalConfig(fontSize) : {}, restConfig || {}); // mergeConfig doesn't recurse and overrides object values.
+
+    if (selection) {
+      vega.writeConfig(mergedConfig, 'selection', selection, true);
+    }
+
+    const outputConfig = omit(mergedConfig, configPropsWithExpr);
+
+    for (const prop of ['background', 'lineBreak', 'padding']) {
+      if (mergedConfig[prop]) {
+        outputConfig[prop] = signalRefOrValue(mergedConfig[prop]);
+      }
+    }
+
+    for (const markConfigType of MARK_CONFIGS) {
+      if (mergedConfig[markConfigType]) {
+        // FIXME: outputConfig[markConfigType] expects that types are replaced recursively but replaceExprRef only replaces one level deep
+        outputConfig[markConfigType] = replaceExprRef(mergedConfig[markConfigType]);
+      }
+    }
+
+    for (const axisConfigType of AXIS_CONFIGS) {
+      if (mergedConfig[axisConfigType]) {
+        outputConfig[axisConfigType] = getAxisConfigInternal(mergedConfig[axisConfigType]);
+      }
+    }
+
+    for (const headerConfigType of HEADER_CONFIGS) {
+      if (mergedConfig[headerConfigType]) {
+        outputConfig[headerConfigType] = replaceExprRef(mergedConfig[headerConfigType]);
+      }
+    }
+
+    if (mergedConfig.legend) {
+      outputConfig.legend = replaceExprRef(mergedConfig.legend);
+    }
+
+    if (mergedConfig.scale) {
+      outputConfig.scale = replaceExprRef(mergedConfig.scale);
+    }
+
+    if (mergedConfig.style) {
+      outputConfig.style = getStyleConfigInternal(mergedConfig.style);
+    }
+
+    if (mergedConfig.title) {
+      outputConfig.title = replaceExprRef(mergedConfig.title);
+    }
+
+    if (mergedConfig.view) {
+      outputConfig.view = replaceExprRef(mergedConfig.view);
+    }
+
+    return outputConfig;
+  }
+  const MARK_STYLES = new Set(['view', ...PRIMITIVE_MARKS]);
+  const VL_ONLY_CONFIG_PROPERTIES = ['color', 'fontSize', 'background', // We apply background to the spec directly.
+  'padding', 'facet', 'concat', 'numberFormat', 'timeFormat', 'countTitle', 'header', 'axisQuantitative', 'axisTemporal', 'axisDiscrete', 'axisPoint', 'axisXBand', 'axisXPoint', 'axisXDiscrete', 'axisXQuantitative', 'axisXTemporal', 'axisYBand', 'axisYPoint', 'axisYDiscrete', 'axisYQuantitative', 'axisYTemporal', 'scale', 'selection', 'overlay' // FIXME: Redesign and unhide this
+  ];
+  const VL_ONLY_ALL_MARK_SPECIFIC_CONFIG_PROPERTY_INDEX = {
+    view: ['continuousWidth', 'continuousHeight', 'discreteWidth', 'discreteHeight', 'step'],
+    ...VL_ONLY_MARK_SPECIFIC_CONFIG_PROPERTY_INDEX
+  };
+  function stripAndRedirectConfig(config) {
+    config = duplicate(config);
+
+    for (const prop of VL_ONLY_CONFIG_PROPERTIES) {
+      delete config[prop];
+    }
+
+    if (config.axis) {
+      // delete condition axis config
+      for (const prop in config.axis) {
+        if (isConditionalAxisValue(config.axis[prop])) {
+          delete config.axis[prop];
+        }
+      }
+    }
+
+    if (config.legend) {
+      for (const prop of VL_ONLY_LEGEND_CONFIG) {
+        delete config.legend[prop];
+      }
+    } // Remove Vega-Lite only generic mark config
+
+
+    if (config.mark) {
+      for (const prop of VL_ONLY_MARK_CONFIG_PROPERTIES) {
+        delete config.mark[prop];
+      }
+
+      if (config.mark.tooltip && vega.isObject(config.mark.tooltip)) {
+        delete config.mark.tooltip;
+      }
+    }
+
+    if (config.params) {
+      config.signals = (config.signals || []).concat(assembleParameterSignals(config.params));
+      delete config.params;
+    }
+
+    for (const markType of MARK_STYLES) {
+      // Remove Vega-Lite-only mark config
+      for (const prop of VL_ONLY_MARK_CONFIG_PROPERTIES) {
+        delete config[markType][prop];
+      } // Remove Vega-Lite only mark-specific config
+
+
+      const vlOnlyMarkSpecificConfigs = VL_ONLY_ALL_MARK_SPECIFIC_CONFIG_PROPERTY_INDEX[markType];
+
+      if (vlOnlyMarkSpecificConfigs) {
+        for (const prop of vlOnlyMarkSpecificConfigs) {
+          delete config[markType][prop];
+        }
+      } // Redirect mark config to config.style so that mark config only affect its own mark type
+      // without affecting other marks that share the same underlying Vega marks.
+      // For example, config.rect should not affect bar marks.
+
+
+      redirectConfigToStyleConfig(config, markType);
+    }
+
+    for (const m of getAllCompositeMarks()) {
+      // Clean up the composite mark config as we don't need them in the output specs anymore
+      delete config[m];
+    }
+
+    redirectTitleConfig(config); // Remove empty config objects.
+
+    for (const prop in config) {
+      if (vega.isObject(config[prop]) && isEmpty(config[prop])) {
+        delete config[prop];
+      }
+    }
+
+    return isEmpty(config) ? undefined : config;
+  }
+  /**
+   *
+   * Redirect config.title -- so that title config do not affect header labels,
+   * which also uses `title` directive to implement.
+   *
+   * For subtitle configs in config.title, keep them in config.title as header titles never have subtitles.
+   */
+
+  function redirectTitleConfig(config) {
+    const {
+      titleMarkConfig,
+      subtitleMarkConfig,
+      subtitle
+    } = extractTitleConfig(config.title); // set config.style if title/subtitleMarkConfig is not an empty object
+
+    if (!isEmpty(titleMarkConfig)) {
+      config.style['group-title'] = { ...config.style['group-title'],
+        ...titleMarkConfig // config.title has higher precedence than config.style.group-title in Vega
+
+      };
+    }
+
+    if (!isEmpty(subtitleMarkConfig)) {
+      config.style['group-subtitle'] = { ...config.style['group-subtitle'],
+        ...subtitleMarkConfig
+      };
+    } // subtitle part can stay in config.title since header titles do not use subtitle
+
+
+    if (!isEmpty(subtitle)) {
+      config.title = subtitle;
+    } else {
+      delete config.title;
+    }
+  }
+
+  function redirectConfigToStyleConfig(config, prop, // string = composite mark
+  toProp, compositeMarkPart) {
+    var _toProp;
+
+    const propConfig = compositeMarkPart ? config[prop][compositeMarkPart] : config[prop];
+
+    if (prop === 'view') {
+      toProp = 'cell'; // View's default style is "cell"
+    }
+
+    const style = { ...propConfig,
+      ...config.style[(_toProp = toProp) !== null && _toProp !== void 0 ? _toProp : prop]
+    }; // set config.style if it is not an empty object
+
+    if (!isEmpty(style)) {
+      var _toProp2;
+
+      config.style[(_toProp2 = toProp) !== null && _toProp2 !== void 0 ? _toProp2 : prop] = style;
+    }
+
+    if (!compositeMarkPart) {
+      // For composite mark, so don't delete the whole config yet as we have to do multiple redirections.
+      delete config[prop];
+    }
+  }
+
+  /**
+   * Base interface for a layer specification.
+   */
+
+  /**
+   * A full layered plot specification, which may contains `encoding` and `projection` properties that will be applied to underlying unit (single-view) specifications.
+   */
+
+  /**
+   * A layered specification without any shortcut/expansion syntax.
+   */
+  function isLayerSpec(spec) {
+    return 'layer' in spec;
+  }
+
+  function isRepeatSpec(spec) {
+    return 'repeat' in spec;
+  }
+  function isLayerRepeatSpec(spec) {
+    return !vega.isArray(spec.repeat) && spec.repeat['layer'];
+  }
+
+  class SpecMapper {
+    map(spec, params) {
+      if (isFacetSpec(spec)) {
+        return this.mapFacet(spec, params);
+      } else if (isRepeatSpec(spec)) {
+        return this.mapRepeat(spec, params);
+      } else if (isHConcatSpec(spec)) {
+        return this.mapHConcat(spec, params);
+      } else if (isVConcatSpec(spec)) {
+        return this.mapVConcat(spec, params);
+      } else if (isConcatSpec(spec)) {
+        return this.mapConcat(spec, params);
+      } else {
+        return this.mapLayerOrUnit(spec, params);
+      }
+    }
+
+    mapLayerOrUnit(spec, params) {
+      if (isLayerSpec(spec)) {
+        return this.mapLayer(spec, params);
+      } else if (isUnitSpec(spec)) {
+        return this.mapUnit(spec, params);
+      }
+
+      throw new Error(invalidSpec(spec));
+    }
+
+    mapLayer(spec, params) {
+      return { ...spec,
+        layer: spec.layer.map(subspec => this.mapLayerOrUnit(subspec, params))
+      };
+    }
+
+    mapHConcat(spec, params) {
+      return { ...spec,
+        hconcat: spec.hconcat.map(subspec => this.map(subspec, params))
+      };
+    }
+
+    mapVConcat(spec, params) {
+      return { ...spec,
+        vconcat: spec.vconcat.map(subspec => this.map(subspec, params))
+      };
+    }
+
+    mapConcat(spec, params) {
+      const {
+        concat,
+        ...rest
+      } = spec;
+      return { ...rest,
+        concat: concat.map(subspec => this.map(subspec, params))
+      };
+    }
+
+    mapFacet(spec, params) {
+      return { // as any is required here since TS cannot infer that FO may only be FieldName or Field, but not RepeatRef
+        ...spec,
+        // TODO: remove "any" once we support all facet listed in https://github.com/vega/vega-lite/issues/2760
+        spec: this.map(spec.spec, params)
+      };
+    }
+
+    mapRepeat(spec, params) {
+      return { ...spec,
+        // as any is required here since TS cannot infer that the output type satisfies the input type
+        spec: this.map(spec.spec, params)
+      };
+    }
+
+  }
+
+  const STACK_OFFSET_INDEX = {
+    zero: 1,
+    center: 1,
+    normalize: 1
+  };
+  function isStackOffset(s) {
+    return s in STACK_OFFSET_INDEX;
+  }
+  const STACKABLE_MARKS = new Set([ARC, BAR, AREA, RULE, POINT, CIRCLE, SQUARE, LINE, TEXT, TICK]);
+  const STACK_BY_DEFAULT_MARKS = new Set([BAR, AREA, ARC]);
+
+  function isUnbinnedQuantitative(channelDef) {
+    return isFieldDef(channelDef) && channelDefType(channelDef) === 'quantitative' && !channelDef.bin;
+  }
+
+  function potentialStackedChannel(encoding, x) {
+    const y = x === 'x' ? 'y' : 'radius';
+    const xDef = encoding[x];
+    const yDef = encoding[y];
+
+    if (isFieldDef(xDef) && isFieldDef(yDef)) {
+      if (isUnbinnedQuantitative(xDef) && isUnbinnedQuantitative(yDef)) {
+        if (xDef.stack) {
+          return x;
+        } else if (yDef.stack) {
+          return y;
+        }
+
+        const xAggregate = isFieldDef(xDef) && !!xDef.aggregate;
+        const yAggregate = isFieldDef(yDef) && !!yDef.aggregate; // if there is no explicit stacking, only apply stack if there is only one aggregate for x or y
+
+        if (xAggregate !== yAggregate) {
+          return xAggregate ? x : y;
+        } else {
+          var _xDef$scale, _yDef$scale;
+
+          const xScale = (_xDef$scale = xDef.scale) === null || _xDef$scale === void 0 ? void 0 : _xDef$scale.type;
+          const yScale = (_yDef$scale = yDef.scale) === null || _yDef$scale === void 0 ? void 0 : _yDef$scale.type;
+
+          if (xScale && xScale !== 'linear') {
+            return y;
+          } else if (yScale && yScale !== 'linear') {
+            return x;
+          }
+        }
+      } else if (isUnbinnedQuantitative(xDef)) {
+        return x;
+      } else if (isUnbinnedQuantitative(yDef)) {
+        return y;
+      }
+    } else if (isUnbinnedQuantitative(xDef)) {
+      return x;
+    } else if (isUnbinnedQuantitative(yDef)) {
+      return y;
+    }
+
+    return undefined;
+  }
+
+  function getDimensionChannel(channel) {
+    switch (channel) {
+      case 'x':
+        return 'y';
+
+      case 'y':
+        return 'x';
+
+      case 'theta':
+        return 'radius';
+
+      case 'radius':
+        return 'theta';
+    }
+  } // Note: CompassQL uses this method and only pass in required properties of each argument object.
+  // If required properties change, make sure to update CompassQL.
+
+
+  function stack(m, encoding) {
+    var _stackedFieldDef$scal, _stackedFieldDef$scal2;
+
+    let opt = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+    const mark = isMarkDef(m) ? m.type : m; // Should have stackable mark
+
+    if (!STACKABLE_MARKS.has(mark)) {
+      return null;
+    } // Run potential stacked twice, one for Cartesian and another for Polar,
+    // so text marks can be stacked in any of the coordinates.
+    // Note: The logic here is not perfectly correct.  If we want to support stacked dot plots where each dot is a pie chart with label, we have to change the stack logic here to separate Cartesian stacking for polar stacking.
+    // However, since we probably never want to do that, let's just note the limitation here.
+
+
+    const fieldChannel = potentialStackedChannel(encoding, 'x') || potentialStackedChannel(encoding, 'theta');
+
+    if (!fieldChannel) {
+      return null;
+    }
+
+    const stackedFieldDef = encoding[fieldChannel];
+    const stackedField = isFieldDef(stackedFieldDef) ? vgField(stackedFieldDef, {}) : undefined;
+    const dimensionChannel = getDimensionChannel(fieldChannel);
+    const groupbyChannels = [];
+    const groupbyFields = new Set();
+
+    if (encoding[dimensionChannel]) {
+      const dimensionDef = encoding[dimensionChannel];
+      const dimensionField = isFieldDef(dimensionDef) ? vgField(dimensionDef, {}) : undefined;
+
+      if (dimensionField && dimensionField !== stackedField) {
+        // avoid grouping by the stacked field
+        groupbyChannels.push(dimensionChannel);
+        groupbyFields.add(dimensionField);
+      }
+
+      const dimensionOffsetChannel = dimensionChannel === 'x' ? 'xOffset' : 'yOffset';
+      const dimensionOffsetDef = encoding[dimensionOffsetChannel];
+      const dimensionOffsetField = isFieldDef(dimensionOffsetDef) ? vgField(dimensionOffsetDef, {}) : undefined;
+
+      if (dimensionOffsetField && dimensionOffsetField !== stackedField) {
+        // avoid grouping by the stacked field
+        groupbyChannels.push(dimensionOffsetChannel);
+        groupbyFields.add(dimensionOffsetField);
+      }
+    } // If the dimension has offset, don't stack anymore
+    // Should have grouping level of detail that is different from the dimension field
+
+
+    const stackBy = NONPOSITION_CHANNELS.reduce((sc, channel) => {
+      // Ignore tooltip in stackBy (https://github.com/vega/vega-lite/issues/4001)
+      if (channel !== 'tooltip' && channelHasField(encoding, channel)) {
+        const channelDef = encoding[channel];
+
+        for (const cDef of vega.array(channelDef)) {
+          const fieldDef = getFieldDef(cDef);
+
+          if (fieldDef.aggregate) {
+            continue;
+          } // Check whether the channel's field is identical to x/y's field or if the channel is a repeat
+
+
+          const f = vgField(fieldDef, {});
+
+          if ( // if fielddef is a repeat, just include it in the stack by
+          !f || // otherwise, the field must be different from the groupBy fields.
+          !groupbyFields.has(f)) {
+            sc.push({
+              channel,
+              fieldDef
+            });
+          }
+        }
+      }
+
+      return sc;
+    }, []); // Automatically determine offset
+
+    let offset;
+
+    if (stackedFieldDef.stack !== undefined) {
+      if (vega.isBoolean(stackedFieldDef.stack)) {
+        offset = stackedFieldDef.stack ? 'zero' : null;
+      } else {
+        offset = stackedFieldDef.stack;
+      }
+    } else if (STACK_BY_DEFAULT_MARKS.has(mark)) {
+      offset = 'zero';
+    }
+
+    if (!offset || !isStackOffset(offset)) {
+      return null;
+    }
+
+    if (isAggregate$1(encoding) && stackBy.length === 0) {
+      return null;
+    } // warn when stacking non-linear
+
+
+    if (stackedFieldDef !== null && stackedFieldDef !== void 0 && (_stackedFieldDef$scal = stackedFieldDef.scale) !== null && _stackedFieldDef$scal !== void 0 && _stackedFieldDef$scal.type && (stackedFieldDef === null || stackedFieldDef === void 0 ? void 0 : (_stackedFieldDef$scal2 = stackedFieldDef.scale) === null || _stackedFieldDef$scal2 === void 0 ? void 0 : _stackedFieldDef$scal2.type) !== ScaleType.LINEAR) {
+      if (opt.disallowNonLinearStack) {
+        return null;
+      } else {
+        warn(cannotStackNonLinearScale(stackedFieldDef.scale.type));
+      }
+    } // Check if it is a ranged mark
+
+
+    if (isFieldOrDatumDef(encoding[getSecondaryRangeChannel(fieldChannel)])) {
+      if (stackedFieldDef.stack !== undefined) {
+        warn(cannotStackRangedMark(fieldChannel));
+      }
+
+      return null;
+    } // Warn if stacking non-summative aggregate
+
+
+    if (isFieldDef(stackedFieldDef) && stackedFieldDef.aggregate && !SUM_OPS.has(stackedFieldDef.aggregate)) {
+      warn(stackNonSummativeAggregate(stackedFieldDef.aggregate));
+    }
+
+    return {
+      groupbyChannels,
+      groupbyFields,
+      fieldChannel,
+      impute: stackedFieldDef.impute === null ? false : isPathMark(mark),
+      stackBy,
+      offset
+    };
+  }
+
+  function dropLineAndPoint(markDef) {
+    const {
+      point: _point,
+      line: _line,
+      ...mark
+    } = markDef;
+    return keys(mark).length > 1 ? mark : mark.type;
+  }
+
+  function dropLineAndPointFromConfig(config) {
+    for (const mark of ['line', 'area', 'rule', 'trail']) {
+      if (config[mark]) {
+        config = { ...config,
+          // TODO: remove as any
+          [mark]: omit(config[mark], ['point', 'line'])
+        };
+      }
+    }
+
+    return config;
+  }
+
+  function getPointOverlay(markDef) {
+    let markConfig = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    let encoding = arguments.length > 2 ? arguments[2] : undefined;
+
+    if (markDef.point === 'transparent') {
+      return {
+        opacity: 0
+      };
+    } else if (markDef.point) {
+      // truthy : true or object
+      return vega.isObject(markDef.point) ? markDef.point : {};
+    } else if (markDef.point !== undefined) {
+      // false or null
+      return null;
+    } else {
+      // undefined (not disabled)
+      if (markConfig.point || encoding.shape) {
+        // enable point overlay if config[mark].point is truthy or if encoding.shape is provided
+        return vega.isObject(markConfig.point) ? markConfig.point : {};
+      } // markDef.point is defined as falsy
+
+
+      return undefined;
+    }
+  }
+
+  function getLineOverlay(markDef) {
+    let markConfig = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+    if (markDef.line) {
+      // true or object
+      return markDef.line === true ? {} : markDef.line;
+    } else if (markDef.line !== undefined) {
+      // false or null
+      return null;
+    } else {
+      // undefined (not disabled)
+      if (markConfig.line) {
+        // enable line overlay if config[mark].line is truthy
+        return markConfig.line === true ? {} : markConfig.line;
+      } // markDef.point is defined as falsy
+
+
+      return undefined;
+    }
+  }
+
+  class PathOverlayNormalizer {
+    constructor() {
+      _defineProperty(this, "name", 'path-overlay');
+    }
+
+    hasMatchingType(spec, config) {
+      if (isUnitSpec(spec)) {
+        const {
+          mark,
+          encoding
+        } = spec;
+        const markDef = isMarkDef(mark) ? mark : {
+          type: mark
+        };
+
+        switch (markDef.type) {
+          case 'line':
+          case 'rule':
+          case 'trail':
+            return !!getPointOverlay(markDef, config[markDef.type], encoding);
+
+          case 'area':
+            return (// false / null are also included as we want to remove the properties
+              !!getPointOverlay(markDef, config[markDef.type], encoding) || !!getLineOverlay(markDef, config[markDef.type])
+            );
+        }
+      }
+
+      return false;
+    }
+
+    run(spec, normParams, normalize) {
+      const {
+        config
+      } = normParams;
+      const {
+        params,
+        projection,
+        mark,
+        encoding: e,
+        ...outerSpec
+      } = spec; // Need to call normalizeEncoding because we need the inferred types to correctly determine stack
+
+      const encoding = normalizeEncoding(e, config);
+      const markDef = isMarkDef(mark) ? mark : {
+        type: mark
+      };
+      const pointOverlay = getPointOverlay(markDef, config[markDef.type], encoding);
+      const lineOverlay = markDef.type === 'area' && getLineOverlay(markDef, config[markDef.type]);
+      const layer = [{ ...(params ? {
+          params
+        } : {}),
+        mark: dropLineAndPoint({ // TODO: extract this 0.7 to be shared with default opacity for point/tick/...
+          ...(markDef.type === 'area' && markDef.opacity === undefined && markDef.fillOpacity === undefined ? {
+            opacity: 0.7
+          } : {}),
+          ...markDef
+        }),
+        // drop shape from encoding as this might be used to trigger point overlay
+        encoding: omit(encoding, ['shape'])
+      }]; // FIXME: determine rules for applying selections.
+      // Need to copy stack config to overlayed layer
+
+      const stackProps = stack(markDef, encoding);
+      let overlayEncoding = encoding;
+
+      if (stackProps) {
+        const {
+          fieldChannel: stackFieldChannel,
+          offset
+        } = stackProps;
+        overlayEncoding = { ...encoding,
+          [stackFieldChannel]: { ...encoding[stackFieldChannel],
+            ...(offset ? {
+              stack: offset
+            } : {})
+          }
+        };
+      }
+
+      if (lineOverlay) {
+        layer.push({ ...(projection ? {
+            projection
+          } : {}),
+          mark: {
+            type: 'line',
+            ...pick(markDef, ['clip', 'interpolate', 'tension', 'tooltip']),
+            ...lineOverlay
+          },
+          encoding: overlayEncoding
+        });
+      }
+
+      if (pointOverlay) {
+        layer.push({ ...(projection ? {
+            projection
+          } : {}),
+          mark: {
+            type: 'point',
+            opacity: 1,
+            filled: true,
+            ...pick(markDef, ['clip', 'tooltip']),
+            ...pointOverlay
+          },
+          encoding: overlayEncoding
+        });
+      }
+
+      return normalize({ ...outerSpec,
+        layer
+      }, { ...normParams,
+        config: dropLineAndPointFromConfig(config)
+      });
+    }
+
+  }
+
+  function replaceRepeaterInFacet(facet, repeater) {
+    if (!repeater) {
+      return facet;
+    }
+
+    if (isFacetMapping(facet)) {
+      return replaceRepeaterInMapping(facet, repeater);
+    }
+
+    return replaceRepeaterInFieldDef(facet, repeater);
+  }
+  function replaceRepeaterInEncoding(encoding, repeater) {
+    if (!repeater) {
+      return encoding;
+    }
+
+    return replaceRepeaterInMapping(encoding, repeater);
+  }
+  /**
+   * Replaces repeated value and returns if the repeated value is valid.
+   */
+
+  function replaceRepeatInProp(prop, o, repeater) {
+    const val = o[prop];
+
+    if (isRepeatRef(val)) {
+      if (val.repeat in repeater) {
+        return { ...o,
+          [prop]: repeater[val.repeat]
+        };
+      } else {
+        warn(noSuchRepeatedValue(val.repeat));
+        return undefined;
+      }
+    }
+
+    return o;
+  }
+  /**
+   * Replace repeater values in a field def with the concrete field name.
+   */
+
+
+  function replaceRepeaterInFieldDef(fieldDef, repeater) {
+    fieldDef = replaceRepeatInProp('field', fieldDef, repeater);
+
+    if (fieldDef === undefined) {
+      // the field def should be ignored
+      return undefined;
+    } else if (fieldDef === null) {
+      return null;
+    }
+
+    if (isSortableFieldDef(fieldDef) && isSortField(fieldDef.sort)) {
+      const sort = replaceRepeatInProp('field', fieldDef.sort, repeater);
+      fieldDef = { ...fieldDef,
+        ...(sort ? {
+          sort
+        } : {})
+      };
+    }
+
+    return fieldDef;
+  }
+
+  function replaceRepeaterInFieldOrDatumDef(def, repeater) {
+    if (isFieldDef(def)) {
+      return replaceRepeaterInFieldDef(def, repeater);
+    } else {
+      const datumDef = replaceRepeatInProp('datum', def, repeater);
+
+      if (datumDef !== def && !datumDef.type) {
+        datumDef.type = 'nominal';
+      }
+
+      return datumDef;
+    }
+  }
+
+  function replaceRepeaterInChannelDef(channelDef, repeater) {
+    if (isFieldOrDatumDef(channelDef)) {
+      const fd = replaceRepeaterInFieldOrDatumDef(channelDef, repeater);
+
+      if (fd) {
+        return fd;
+      } else if (isConditionalDef(channelDef)) {
+        return {
+          condition: channelDef.condition
+        };
+      }
+    } else {
+      if (hasConditionalFieldOrDatumDef(channelDef)) {
+        const fd = replaceRepeaterInFieldOrDatumDef(channelDef.condition, repeater);
+
+        if (fd) {
+          return { ...channelDef,
+            condition: fd
+          };
+        } else {
+          const {
+            condition,
+            ...channelDefWithoutCondition
+          } = channelDef;
+          return channelDefWithoutCondition;
+        }
+      }
+
+      return channelDef;
+    }
+
+    return undefined;
+  }
+
+  function replaceRepeaterInMapping(mapping, repeater) {
+    const out = {};
+
+    for (const channel in mapping) {
+      if (vega.hasOwnProperty(mapping, channel)) {
+        const channelDef = mapping[channel];
+
+        if (vega.isArray(channelDef)) {
+          // array cannot have condition
+          out[channel] = channelDef // somehow we need to cast it here
+          .map(cd => replaceRepeaterInChannelDef(cd, repeater)).filter(cd => cd);
+        } else {
+          const cd = replaceRepeaterInChannelDef(channelDef, repeater);
+
+          if (cd !== undefined) {
+            out[channel] = cd;
+          }
+        }
+      }
+    }
+
+    return out;
+  }
+
+  class RuleForRangedLineNormalizer {
+    constructor() {
+      _defineProperty(this, "name", 'RuleForRangedLine');
+    }
+
+    hasMatchingType(spec) {
+      if (isUnitSpec(spec)) {
+        const {
+          encoding,
+          mark
+        } = spec;
+
+        if (mark === 'line' || isMarkDef(mark) && mark.type === 'line') {
+          for (const channel of SECONDARY_RANGE_CHANNEL) {
+            const mainChannel = getMainRangeChannel(channel);
+            const mainChannelDef = encoding[mainChannel];
+
+            if (encoding[channel]) {
+              if (isFieldDef(mainChannelDef) && !isBinned(mainChannelDef.bin) || isDatumDef(mainChannelDef)) {
+                return true;
+              }
+            }
+          }
+        }
+      }
+
+      return false;
+    }
+
+    run(spec, params, normalize) {
+      const {
+        encoding,
+        mark
+      } = spec;
+      warn(lineWithRange(!!encoding.x2, !!encoding.y2));
+      return normalize({ ...spec,
+        mark: vega.isObject(mark) ? { ...mark,
+          type: 'rule'
+        } : 'rule'
+      }, params);
+    }
+
+  }
+
+  class CoreNormalizer extends SpecMapper {
+    constructor() {
+      super(...arguments);
+
+      _defineProperty(this, "nonFacetUnitNormalizers", [boxPlotNormalizer, errorBarNormalizer, errorBandNormalizer, new PathOverlayNormalizer(), new RuleForRangedLineNormalizer()]);
+    }
+
+    map(spec, params) {
+      // Special handling for a faceted unit spec as it can return a facet spec, not just a layer or unit spec like a normal unit spec.
+      if (isUnitSpec(spec)) {
+        const hasRow = channelHasField(spec.encoding, ROW);
+        const hasColumn = channelHasField(spec.encoding, COLUMN);
+        const hasFacet = channelHasField(spec.encoding, FACET);
+
+        if (hasRow || hasColumn || hasFacet) {
+          return this.mapFacetedUnit(spec, params);
+        }
+      }
+
+      return super.map(spec, params);
+    } // This is for normalizing non-facet unit
+
+
+    mapUnit(spec, params) {
+      const {
+        parentEncoding,
+        parentProjection
+      } = params;
+      const encoding = replaceRepeaterInEncoding(spec.encoding, params.repeater);
+      const specWithReplacedEncoding = { ...spec,
+        ...(encoding ? {
+          encoding
+        } : {})
+      };
+
+      if (parentEncoding || parentProjection) {
+        return this.mapUnitWithParentEncodingOrProjection(specWithReplacedEncoding, params);
+      }
+
+      const normalizeLayerOrUnit = this.mapLayerOrUnit.bind(this);
+
+      for (const unitNormalizer of this.nonFacetUnitNormalizers) {
+        if (unitNormalizer.hasMatchingType(specWithReplacedEncoding, params.config)) {
+          return unitNormalizer.run(specWithReplacedEncoding, params, normalizeLayerOrUnit);
+        }
+      }
+
+      return specWithReplacedEncoding;
+    }
+
+    mapRepeat(spec, params) {
+      if (isLayerRepeatSpec(spec)) {
+        return this.mapLayerRepeat(spec, params);
+      } else {
+        return this.mapNonLayerRepeat(spec, params);
+      }
+    }
+
+    mapLayerRepeat(spec, params) {
+      const {
+        repeat,
+        spec: childSpec,
+        ...rest
+      } = spec;
+      const {
+        row,
+        column,
+        layer
+      } = repeat;
+      const {
+        repeater = {},
+        repeaterPrefix = ''
+      } = params;
+
+      if (row || column) {
+        return this.mapRepeat({ ...spec,
+          repeat: { ...(row ? {
+              row
+            } : {}),
+            ...(column ? {
+              column
+            } : {})
+          },
+          spec: {
+            repeat: {
+              layer
+            },
+            spec: childSpec
+          }
+        }, params);
+      } else {
+        return { ...rest,
+          layer: layer.map(layerValue => {
+            const childRepeater = { ...repeater,
+              layer: layerValue
+            };
+            const childName = "".concat((childSpec.name || '') + repeaterPrefix, "child__layer_").concat(varName(layerValue));
+            const child = this.mapLayerOrUnit(childSpec, { ...params,
+              repeater: childRepeater,
+              repeaterPrefix: childName
+            });
+            child.name = childName;
+            return child;
+          })
+        };
+      }
+    }
+
+    mapNonLayerRepeat(spec, params) {
+      var _childSpec$data;
+
+      const {
+        repeat,
+        spec: childSpec,
+        data,
+        ...remainingProperties
+      } = spec;
+
+      if (!vega.isArray(repeat) && spec.columns) {
+        // is repeat with row/column
+        spec = omit(spec, ['columns']);
+        warn(columnsNotSupportByRowCol('repeat'));
+      }
+
+      const concat = [];
+      const {
+        repeater = {},
+        repeaterPrefix = ''
+      } = params;
+      const row = !vega.isArray(repeat) && repeat.row || [repeater ? repeater.row : null];
+      const column = !vega.isArray(repeat) && repeat.column || [repeater ? repeater.column : null];
+      const repeatValues = vega.isArray(repeat) && repeat || [repeater ? repeater.repeat : null]; // cross product
+
+      for (const repeatValue of repeatValues) {
+        for (const rowValue of row) {
+          for (const columnValue of column) {
+            const childRepeater = {
+              repeat: repeatValue,
+              row: rowValue,
+              column: columnValue,
+              layer: repeater.layer
+            };
+            const childName = (childSpec.name || '') + repeaterPrefix + 'child__' + (vega.isArray(repeat) ? "".concat(varName(repeatValue)) : (repeat.row ? "row_".concat(varName(rowValue)) : '') + (repeat.column ? "column_".concat(varName(columnValue)) : ''));
+            const child = this.map(childSpec, { ...params,
+              repeater: childRepeater,
+              repeaterPrefix: childName
+            });
+            child.name = childName; // we move data up
+
+            concat.push(omit(child, ['data']));
+          }
+        }
+      }
+
+      const columns = vega.isArray(repeat) ? spec.columns : repeat.column ? repeat.column.length : 1;
+      return {
+        data: (_childSpec$data = childSpec.data) !== null && _childSpec$data !== void 0 ? _childSpec$data : data,
+        // data from child spec should have precedence
+        align: 'all',
+        ...remainingProperties,
+        columns,
+        concat
+      };
+    }
+
+    mapFacet(spec, params) {
+      const {
+        facet
+      } = spec;
+
+      if (isFacetMapping(facet) && spec.columns) {
+        // is facet with row/column
+        spec = omit(spec, ['columns']);
+        warn(columnsNotSupportByRowCol('facet'));
+      }
+
+      return super.mapFacet(spec, params);
+    }
+
+    mapUnitWithParentEncodingOrProjection(spec, params) {
+      const {
+        encoding,
+        projection
+      } = spec;
+      const {
+        parentEncoding,
+        parentProjection,
+        config
+      } = params;
+      const mergedProjection = mergeProjection({
+        parentProjection,
+        projection
+      });
+      const mergedEncoding = mergeEncoding({
+        parentEncoding,
+        encoding: replaceRepeaterInEncoding(encoding, params.repeater)
+      });
+      return this.mapUnit({ ...spec,
+        ...(mergedProjection ? {
+          projection: mergedProjection
+        } : {}),
+        ...(mergedEncoding ? {
+          encoding: mergedEncoding
+        } : {})
+      }, {
+        config
+      });
+    }
+
+    mapFacetedUnit(spec, normParams) {
+      // New encoding in the inside spec should not contain row / column
+      // as row/column should be moved to facet
+      const {
+        row,
+        column,
+        facet,
+        ...encoding
+      } = spec.encoding; // Mark and encoding should be moved into the inner spec
+
+      const {
+        mark,
+        width,
+        projection,
+        height,
+        view,
+        params,
+        encoding: _,
+        ...outerSpec
+      } = spec;
+      const {
+        facetMapping,
+        layout
+      } = this.getFacetMappingAndLayout({
+        row,
+        column,
+        facet
+      }, normParams);
+      const newEncoding = replaceRepeaterInEncoding(encoding, normParams.repeater);
+      return this.mapFacet({ ...outerSpec,
+        ...layout,
+        // row / column has higher precedence than facet
+        facet: facetMapping,
+        spec: { ...(width ? {
+            width
+          } : {}),
+          ...(height ? {
+            height
+          } : {}),
+          ...(view ? {
+            view
+          } : {}),
+          ...(projection ? {
+            projection
+          } : {}),
+          mark,
+          encoding: newEncoding,
+          ...(params ? {
+            params
+          } : {})
+        }
+      }, normParams);
+    }
+
+    getFacetMappingAndLayout(facets, params) {
+      const {
+        row,
+        column,
+        facet
+      } = facets;
+
+      if (row || column) {
+        if (facet) {
+          warn(facetChannelDropped([...(row ? [ROW] : []), ...(column ? [COLUMN] : [])]));
+        }
+
+        const facetMapping = {};
+        const layout = {};
+
+        for (const channel of [ROW, COLUMN]) {
+          const def = facets[channel];
+
+          if (def) {
+            const {
+              align,
+              center,
+              spacing,
+              columns,
+              ...defWithoutLayout
+            } = def;
+            facetMapping[channel] = defWithoutLayout;
+
+            for (const prop of ['align', 'center', 'spacing']) {
+              if (def[prop] !== undefined) {
+                var _layout$prop;
+
+                (_layout$prop = layout[prop]) !== null && _layout$prop !== void 0 ? _layout$prop : layout[prop] = {};
+                layout[prop][channel] = def[prop];
+              }
+            }
+          }
+        }
+
+        return {
+          facetMapping,
+          layout
+        };
+      } else {
+        const {
+          align,
+          center,
+          spacing,
+          columns,
+          ...facetMapping
+        } = facet;
+        return {
+          facetMapping: replaceRepeaterInFacet(facetMapping, params.repeater),
+          layout: { ...(align ? {
+              align
+            } : {}),
+            ...(center ? {
+              center
+            } : {}),
+            ...(spacing ? {
+              spacing
+            } : {}),
+            ...(columns ? {
+              columns
+            } : {})
+          }
+        };
+      }
+    }
+
+    mapLayer(spec, _ref) {
+      let {
+        parentEncoding,
+        parentProjection,
+        ...otherParams
+      } = _ref;
+      // Special handling for extended layer spec
+      const {
+        encoding,
+        projection,
+        ...rest
+      } = spec;
+      const params = { ...otherParams,
+        parentEncoding: mergeEncoding({
+          parentEncoding,
+          encoding,
+          layer: true
+        }),
+        parentProjection: mergeProjection({
+          parentProjection,
+          projection
+        })
+      };
+      return super.mapLayer(rest, params);
+    }
+
+  }
+
+  function mergeEncoding(_ref2) {
+    let {
+      parentEncoding,
+      encoding = {},
+      layer
+    } = _ref2;
+    let merged = {};
+
+    if (parentEncoding) {
+      const channels = new Set([...keys(parentEncoding), ...keys(encoding)]);
+
+      for (const channel of channels) {
+        const channelDef = encoding[channel];
+        const parentChannelDef = parentEncoding[channel];
+
+        if (isFieldOrDatumDef(channelDef)) {
+          // Field/Datum Def can inherit properties from its parent
+          // Note that parentChannelDef doesn't have to be a field/datum def if the channelDef is already one.
+          const mergedChannelDef = { ...parentChannelDef,
+            ...channelDef
+          };
+          merged[channel] = mergedChannelDef;
+        } else if (hasConditionalFieldOrDatumDef(channelDef)) {
+          merged[channel] = { ...channelDef,
+            condition: { ...parentChannelDef,
+              ...channelDef.condition
+            }
+          };
+        } else if (channelDef || channelDef === null) {
+          merged[channel] = channelDef;
+        } else if (layer || isValueDef(parentChannelDef) || isSignalRef(parentChannelDef) || isFieldOrDatumDef(parentChannelDef) || vega.isArray(parentChannelDef)) {
+          merged[channel] = parentChannelDef;
+        }
+      }
+    } else {
+      merged = encoding;
+    }
+
+    return !merged || isEmpty(merged) ? undefined : merged;
+  }
+
+  function mergeProjection(opt) {
+    const {
+      parentProjection,
+      projection
+    } = opt;
+
+    if (parentProjection && projection) {
+      warn(projectionOverridden({
+        parentProjection,
+        projection
+      }));
+    }
+
+    return projection !== null && projection !== void 0 ? projection : parentProjection;
+  }
+
+  function isFilter(t) {
+    return 'filter' in t;
+  }
+  function isImputeSequence(t) {
+    return (t === null || t === void 0 ? void 0 : t['stop']) !== undefined;
+  }
+  function isLookup(t) {
+    return 'lookup' in t;
+  }
+  function isLookupData(from) {
+    return 'data' in from;
+  }
+  function isLookupSelection(from) {
+    return 'param' in from;
+  }
+  function isPivot(t) {
+    return 'pivot' in t;
+  }
+  function isDensity(t) {
+    return 'density' in t;
+  }
+  function isQuantile(t) {
+    return 'quantile' in t;
+  }
+  function isRegression(t) {
+    return 'regression' in t;
+  }
+  function isLoess(t) {
+    return 'loess' in t;
+  }
+  function isSample(t) {
+    return 'sample' in t;
+  }
+  function isWindow(t) {
+    return 'window' in t;
+  }
+  function isJoinAggregate(t) {
+    return 'joinaggregate' in t;
+  }
+  function isFlatten(t) {
+    return 'flatten' in t;
+  }
+  function isCalculate(t) {
+    return 'calculate' in t;
+  }
+  function isBin(t) {
+    return 'bin' in t;
+  }
+  function isImpute(t) {
+    return 'impute' in t;
+  }
+  function isTimeUnit(t) {
+    return 'timeUnit' in t;
+  }
+  function isAggregate(t) {
+    return 'aggregate' in t;
+  }
+  function isStack(t) {
+    return 'stack' in t;
+  }
+  function isFold(t) {
+    return 'fold' in t;
+  }
+  function normalizeTransform(transform) {
+    return transform.map(t => {
+      if (isFilter(t)) {
+        return {
+          filter: normalizeLogicalComposition(t.filter, normalizePredicate$1)
+        };
+      }
+
+      return t;
+    });
+  }
+
+  class SelectionCompatibilityNormalizer extends SpecMapper {
+    map(spec, normParams) {
+      var _normParams$emptySele, _normParams$selection;
+
+      (_normParams$emptySele = normParams.emptySelections) !== null && _normParams$emptySele !== void 0 ? _normParams$emptySele : normParams.emptySelections = {};
+      (_normParams$selection = normParams.selectionPredicates) !== null && _normParams$selection !== void 0 ? _normParams$selection : normParams.selectionPredicates = {};
+      spec = normalizeTransforms(spec, normParams);
+      return super.map(spec, normParams);
+    }
+
+    mapLayerOrUnit(spec, normParams) {
+      spec = normalizeTransforms(spec, normParams);
+
+      if (spec.encoding) {
+        const encoding = {};
+
+        for (const [channel, enc] of entries$1(spec.encoding)) {
+          encoding[channel] = normalizeChannelDef(enc, normParams);
+        }
+
+        spec = { ...spec,
+          encoding
+        };
+      }
+
+      return super.mapLayerOrUnit(spec, normParams);
+    }
+
+    mapUnit(spec, normParams) {
+      const {
+        selection,
+        ...rest
+      } = spec;
+
+      if (selection) {
+        return { ...rest,
+          params: entries$1(selection).map(_ref => {
+            let [name, selDef] = _ref;
+            const {
+              init: value,
+              bind,
+              empty,
+              ...select
+            } = selDef;
+
+            if (select.type === 'single') {
+              select.type = 'point';
+              select.toggle = false;
+            } else if (select.type === 'multi') {
+              select.type = 'point';
+            } // Propagate emptiness forwards and backwards
+
+
+            normParams.emptySelections[name] = empty !== 'none';
+
+            for (const pred of vals((_normParams$selection2 = normParams.selectionPredicates[name]) !== null && _normParams$selection2 !== void 0 ? _normParams$selection2 : {})) {
+              var _normParams$selection2;
+
+              pred.empty = empty !== 'none';
+            }
+
+            return {
+              name,
+              value,
+              select,
+              bind
+            };
+          })
+        };
+      }
+
+      return spec;
+    }
+
+  }
+
+  function normalizeTransforms(spec, normParams) {
+    const {
+      transform: tx,
+      ...rest
+    } = spec;
+
+    if (tx) {
+      const transform = tx.map(t => {
+        if (isFilter(t)) {
+          return {
+            filter: normalizePredicate(t, normParams)
+          };
+        } else if (isBin(t) && isBinParams(t.bin)) {
+          return { ...t,
+            bin: normalizeBinExtent(t.bin)
+          };
+        } else if (isLookup(t)) {
+          const {
+            selection: param,
+            ...from
+          } = t.from;
+          return param ? { ...t,
+            from: {
+              param,
+              ...from
+            }
+          } : t;
+        }
+
+        return t;
+      });
+      return { ...rest,
+        transform
+      };
+    }
+
+    return spec;
+  }
+
+  function normalizeChannelDef(obj, normParams) {
+    var _enc$scale, _enc$scale$domain;
+
+    const enc = duplicate(obj);
+
+    if (isFieldDef(enc) && isBinParams(enc.bin)) {
+      enc.bin = normalizeBinExtent(enc.bin);
+    }
+
+    if (isScaleFieldDef(enc) && (_enc$scale = enc.scale) !== null && _enc$scale !== void 0 && (_enc$scale$domain = _enc$scale.domain) !== null && _enc$scale$domain !== void 0 && _enc$scale$domain.selection) {
+      const {
+        selection: param,
+        ...domain
+      } = enc.scale.domain;
+      enc.scale.domain = { ...domain,
+        ...(param ? {
+          param
+        } : {})
+      };
+    }
+
+    if (isConditionalDef(enc)) {
+      if (vega.isArray(enc.condition)) {
+        enc.condition = enc.condition.map(c => {
+          const {
+            selection,
+            param,
+            test,
+            ...cond
+          } = c;
+          return param ? c : { ...cond,
+            test: normalizePredicate(c, normParams)
+          };
+        });
+      } else {
+        const {
+          selection,
+          param,
+          test,
+          ...cond
+        } = normalizeChannelDef(enc.condition, normParams);
+        enc.condition = param ? enc.condition : { ...cond,
+          test: normalizePredicate(enc.condition, normParams)
+        };
+      }
+    }
+
+    return enc;
+  }
+
+  function normalizeBinExtent(bin) {
+    const ext = bin.extent;
+
+    if (ext !== null && ext !== void 0 && ext.selection) {
+      const {
+        selection: param,
+        ...rest
+      } = ext;
+      return { ...bin,
+        extent: { ...rest,
+          param
+        }
+      };
+    }
+
+    return bin;
+  }
+
+  function normalizePredicate(op, normParams) {
+    // Normalize old compositions of selection names (e.g., selection: {and: ["one", "two"]})
+    const normalizeSelectionComposition = o => {
+      return normalizeLogicalComposition(o, param => {
+        var _normParams$emptySele2, _normParams$selection3, _normParams$selection4;
+
+        const empty = (_normParams$emptySele2 = normParams.emptySelections[param]) !== null && _normParams$emptySele2 !== void 0 ? _normParams$emptySele2 : true;
+        const pred = {
+          param,
+          empty
+        };
+        (_normParams$selection4 = (_normParams$selection3 = normParams.selectionPredicates)[param]) !== null && _normParams$selection4 !== void 0 ? _normParams$selection4 : _normParams$selection3[param] = [];
+        normParams.selectionPredicates[param].push(pred);
+        return pred;
+      });
+    };
+
+    return op.selection ? normalizeSelectionComposition(op.selection) : normalizeLogicalComposition(op.test || op.filter, o => o.selection ? normalizeSelectionComposition(o.selection) : o);
+  }
+
+  class TopLevelSelectionsNormalizer extends SpecMapper {
+    map(spec, normParams) {
+      var _normParams$selection;
+
+      const selections = (_normParams$selection = normParams.selections) !== null && _normParams$selection !== void 0 ? _normParams$selection : [];
+
+      if (spec.params && !isUnitSpec(spec)) {
+        const params = [];
+
+        for (const param of spec.params) {
+          if (isSelectionParameter(param)) {
+            selections.push(param);
+          } else {
+            params.push(param);
+          }
+        }
+
+        spec.params = params;
+      }
+
+      normParams.selections = selections;
+      return super.map(spec, addSpecNameToParams(spec, normParams));
+    }
+
+    mapUnit(spec, normParams) {
+      var _normParams$path;
+
+      const selections = normParams.selections;
+      if (!selections || !selections.length) return spec;
+      const path = ((_normParams$path = normParams.path) !== null && _normParams$path !== void 0 ? _normParams$path : []).concat(spec.name);
+      const params = [];
+
+      for (const selection of selections) {
+        // By default, apply selections to all unit views.
+        if (!selection.views || !selection.views.length) {
+          params.push(selection);
+        } else {
+          for (const view of selection.views) {
+            // view is either a specific unit name, or a partial path through the spec tree.
+            if (vega.isString(view) && (view === spec.name || path.indexOf(view) >= 0) || vega.isArray(view) && view.map(v => path.indexOf(v)).every((v, i, arr) => v !== -1 && (i === 0 || v > arr[i - 1]))) {
+              params.push(selection);
+            }
+          }
+        }
+      }
+
+      if (params.length) spec.params = params;
+      return spec;
+    }
+
+  }
+
+  for (const method of ['mapFacet', 'mapRepeat', 'mapHConcat', 'mapVConcat', 'mapLayer']) {
+    const proto = TopLevelSelectionsNormalizer.prototype[method];
+
+    TopLevelSelectionsNormalizer.prototype[method] = function (spec, params) {
+      return proto.call(this, spec, addSpecNameToParams(spec, params));
+    };
+  }
+
+  function addSpecNameToParams(spec, params) {
+    var _params$path;
+
+    return spec.name ? { ...params,
+      path: ((_params$path = params.path) !== null && _params$path !== void 0 ? _params$path : []).concat(spec.name)
+    } : params;
+  }
+
+  function normalize(spec, config) {
+    if (config === undefined) {
+      config = initConfig(spec.config);
+    }
+
+    const normalizedSpec = normalizeGenericSpec(spec, config);
+    const {
+      width,
+      height
+    } = spec;
+    const autosize = normalizeAutoSize(normalizedSpec, {
+      width,
+      height,
+      autosize: spec.autosize
+    }, config);
+    return { ...normalizedSpec,
+      ...(autosize ? {
+        autosize
+      } : {})
+    };
+  }
+  const coreNormalizer = new CoreNormalizer();
+  const selectionCompatNormalizer = new SelectionCompatibilityNormalizer();
+  const topLevelSelectionNormalizer = new TopLevelSelectionsNormalizer();
+  /**
+   * Decompose extended unit specs into composition of pure unit specs.
+   * And push top-level selection definitions down to unit specs.
+   */
+
+  function normalizeGenericSpec(spec) {
+    let config = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    const normParams = {
+      config
+    };
+    return topLevelSelectionNormalizer.map(coreNormalizer.map(selectionCompatNormalizer.map(spec, normParams), normParams), normParams);
+  }
+
+  function _normalizeAutoSize(autosize) {
+    return vega.isString(autosize) ? {
+      type: autosize
+    } : autosize !== null && autosize !== void 0 ? autosize : {};
+  }
+  /**
+   * Normalize autosize and deal with width or height == "container".
+   */
+
+
+  function normalizeAutoSize(spec, sizeInfo, config) {
+    let {
+      width,
+      height
+    } = sizeInfo;
+    const isFitCompatible = isUnitSpec(spec) || isLayerSpec(spec);
+    const autosizeDefault = {};
+
+    if (!isFitCompatible) {
+      // If spec is not compatible with autosize == "fit", discard width/height == container
+      if (width == 'container') {
+        warn(containerSizeNonSingle('width'));
+        width = undefined;
+      }
+
+      if (height == 'container') {
+        warn(containerSizeNonSingle('height'));
+        height = undefined;
+      }
+    } else {
+      // Default autosize parameters to fit when width/height is "container"
+      if (width == 'container' && height == 'container') {
+        autosizeDefault.type = 'fit';
+        autosizeDefault.contains = 'padding';
+      } else if (width == 'container') {
+        autosizeDefault.type = 'fit-x';
+        autosizeDefault.contains = 'padding';
+      } else if (height == 'container') {
+        autosizeDefault.type = 'fit-y';
+        autosizeDefault.contains = 'padding';
+      }
+    }
+
+    const autosize = {
+      type: 'pad',
+      ...autosizeDefault,
+      ...(config ? _normalizeAutoSize(config.autosize) : {}),
+      ..._normalizeAutoSize(spec.autosize)
+    };
+
+    if (autosize.type === 'fit' && !isFitCompatible) {
+      warn(FIT_NON_SINGLE);
+      autosize.type = 'pad';
+    }
+
+    if (width == 'container' && !(autosize.type == 'fit' || autosize.type == 'fit-x')) {
+      warn(containerSizeNotCompatibleWithAutosize('width'));
+    }
+
+    if (height == 'container' && !(autosize.type == 'fit' || autosize.type == 'fit-y')) {
+      warn(containerSizeNotCompatibleWithAutosize('height'));
+    } // Delete autosize property if it's Vega's default
+
+
+    if (deepEqual(autosize, {
+      type: 'pad'
+    })) {
+      return undefined;
+    }
+
+    return autosize;
+  }
+
+  /**
+   * Generic class for storing properties that are explicitly specified
+   * and implicitly determined by the compiler.
+   * This is important for scale/axis/legend merging as
+   * we want to prioritize properties that users explicitly specified.
+   */
+  // eslint-disable-next-line @typescript-eslint/ban-types
+
+  class Split {
+    constructor() {
+      let explicit = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+      let implicit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+      this.explicit = explicit;
+      this.implicit = implicit;
+    }
+
+    clone() {
+      return new Split(duplicate(this.explicit), duplicate(this.implicit));
+    }
+
+    combine() {
+      return { ...this.explicit,
+        // Explicit properties comes first
+        ...this.implicit
+      };
+    }
+
+    get(key) {
+      // Explicit has higher precedence
+      return getFirstDefined(this.explicit[key], this.implicit[key]);
+    }
+
+    getWithExplicit(key) {
+      // Explicit has higher precedence
+      if (this.explicit[key] !== undefined) {
+        return {
+          explicit: true,
+          value: this.explicit[key]
+        };
+      } else if (this.implicit[key] !== undefined) {
+        return {
+          explicit: false,
+          value: this.implicit[key]
+        };
+      }
+
+      return {
+        explicit: false,
+        value: undefined
+      };
+    }
+
+    setWithExplicit(key, _ref) {
+      let {
+        value,
+        explicit
+      } = _ref;
+
+      if (value !== undefined) {
+        this.set(key, value, explicit);
+      }
+    }
+
+    set(key, value, explicit) {
+      delete this[explicit ? 'implicit' : 'explicit'][key];
+      this[explicit ? 'explicit' : 'implicit'][key] = value;
+      return this;
+    }
+
+    copyKeyFromSplit(key, _ref2) {
+      let {
+        explicit,
+        implicit
+      } = _ref2;
+
+      // Explicit has higher precedence
+      if (explicit[key] !== undefined) {
+        this.set(key, explicit[key], true);
+      } else if (implicit[key] !== undefined) {
+        this.set(key, implicit[key], false);
+      }
+    }
+
+    copyKeyFromObject(key, s) {
+      // Explicit has higher precedence
+      if (s[key] !== undefined) {
+        this.set(key, s[key], true);
+      }
+    }
+    /**
+     * Merge split object into this split object. Properties from the other split
+     * overwrite properties from this split.
+     */
+
+
+    copyAll(other) {
+      for (const key of keys(other.combine())) {
+        const val = other.getWithExplicit(key);
+        this.setWithExplicit(key, val);
+      }
+    }
+
+  }
+  function makeExplicit(value) {
+    return {
+      explicit: true,
+      value
+    };
+  }
+  function makeImplicit(value) {
+    return {
+      explicit: false,
+      value
+    };
+  }
+  function tieBreakByComparing(compare) {
+    return (v1, v2, property, propertyOf) => {
+      const diff = compare(v1.value, v2.value);
+
+      if (diff > 0) {
+        return v1;
+      } else if (diff < 0) {
+        return v2;
+      }
+
+      return defaultTieBreaker(v1, v2, property, propertyOf);
+    };
+  }
+  function defaultTieBreaker(v1, v2, property, propertyOf) {
+    if (v1.explicit && v2.explicit) {
+      warn(mergeConflictingProperty(property, propertyOf, v1.value, v2.value));
+    } // If equal score, prefer v1.
+
+
+    return v1;
+  }
+  function mergeValuesWithExplicit(v1, v2, property, propertyOf) {
+    let tieBreaker = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : defaultTieBreaker;
+
+    if (v1 === undefined || v1.value === undefined) {
+      // For first run
+      return v2;
+    }
+
+    if (v1.explicit && !v2.explicit) {
+      return v1;
+    } else if (v2.explicit && !v1.explicit) {
+      return v2;
+    } else if (deepEqual(v1.value, v2.value)) {
+      return v1;
+    } else {
+      return tieBreaker(v1, v2, property, propertyOf);
+    }
+  }
+
+  /**
+   * Class to track interesting properties (see https://15721.courses.cs.cmu.edu/spring2016/papers/graefe-ieee1995.pdf)
+   * about how fields have been parsed or whether they have been derived in a transform. We use this to not parse the
+   * same field again (or differently).
+   */
+  class AncestorParse extends Split {
+    constructor() {
+      let explicit = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+      let implicit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+      let parseNothing = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
+      super(explicit, implicit);
+      this.explicit = explicit;
+      this.implicit = implicit;
+      this.parseNothing = parseNothing;
+    }
+
+    clone() {
+      const clone = super.clone();
+      clone.parseNothing = this.parseNothing;
+      return clone;
+    }
+
+  }
+
+  /*
+   * Constants and utilities for data.
+   */
+  // eslint-disable-next-line @typescript-eslint/ban-types
+  function isUrlData(data) {
+    return 'url' in data;
+  }
+  function isInlineData(data) {
+    return 'values' in data;
+  }
+  function isNamedData(data) {
+    return 'name' in data && !isUrlData(data) && !isInlineData(data) && !isGenerator(data);
+  }
+  function isGenerator(data) {
+    return data && (isSequenceGenerator(data) || isSphereGenerator(data) || isGraticuleGenerator(data));
+  }
+  function isSequenceGenerator(data) {
+    return 'sequence' in data;
+  }
+  function isSphereGenerator(data) {
+    return 'sphere' in data;
+  }
+  function isGraticuleGenerator(data) {
+    return 'graticule' in data;
+  }
+  let DataSourceType;
+
+  (function (DataSourceType) {
+    DataSourceType[DataSourceType["Raw"] = 0] = "Raw";
+    DataSourceType[DataSourceType["Main"] = 1] = "Main";
+    DataSourceType[DataSourceType["Row"] = 2] = "Row";
+    DataSourceType[DataSourceType["Column"] = 3] = "Column";
+    DataSourceType[DataSourceType["Lookup"] = 4] = "Lookup";
+  })(DataSourceType || (DataSourceType = {}));
+
+  function assembleInit(init) {
+    let isExpr = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
+    let wrap = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : vega.identity;
+
+    if (vega.isArray(init)) {
+      const assembled = init.map(v => assembleInit(v, isExpr, wrap));
+      return isExpr ? "[".concat(assembled.join(', '), "]") : assembled;
+    } else if (isDateTime(init)) {
+      if (isExpr) {
+        return wrap(dateTimeToExpr(init));
+      } else {
+        return wrap(dateTimeToTimestamp(init));
+      }
+    }
+
+    return isExpr ? wrap(stringify(init)) : init;
+  }
+  function assembleUnitSelectionSignals(model, signals) {
+    for (const selCmpt of vals((_model$component$sele = model.component.selection) !== null && _model$component$sele !== void 0 ? _model$component$sele : {})) {
+      var _model$component$sele;
+
+      const name = selCmpt.name;
+      let modifyExpr = "".concat(name).concat(TUPLE, ", ").concat(selCmpt.resolve === 'global' ? 'true' : "{unit: ".concat(unitName(model), "}"));
+
+      for (const c of selectionCompilers) {
+        if (!c.defined(selCmpt)) continue;
+        if (c.signals) signals = c.signals(model, selCmpt, signals);
+        if (c.modifyExpr) modifyExpr = c.modifyExpr(model, selCmpt, modifyExpr);
+      }
+
+      signals.push({
+        name: name + MODIFY,
+        on: [{
+          events: {
+            signal: selCmpt.name + TUPLE
+          },
+          update: "modify(".concat(vega.stringValue(selCmpt.name + STORE), ", ").concat(modifyExpr, ")")
+        }]
+      });
+    }
+
+    return cleanupEmptyOnArray(signals);
+  }
+  function assembleFacetSignals(model, signals) {
+    if (model.component.selection && keys(model.component.selection).length) {
+      const name = vega.stringValue(model.getName('cell'));
+      signals.unshift({
+        name: 'facet',
+        value: {},
+        on: [{
+          events: vega.parseSelector('mousemove', 'scope'),
+          update: "isTuple(facet) ? facet : group(".concat(name, ").datum")
+        }]
+      });
+    }
+
+    return cleanupEmptyOnArray(signals);
+  }
+  function assembleTopLevelSignals(model, signals) {
+    let hasSelections = false;
+
+    for (const selCmpt of vals((_model$component$sele2 = model.component.selection) !== null && _model$component$sele2 !== void 0 ? _model$component$sele2 : {})) {
+      var _model$component$sele2;
+
+      const name = selCmpt.name;
+      const store = vega.stringValue(name + STORE);
+      const hasSg = signals.filter(s => s.name === name);
+
+      if (hasSg.length === 0) {
+        const resolve = selCmpt.resolve === 'global' ? 'union' : selCmpt.resolve;
+        const isPoint = selCmpt.type === 'point' ? ', true, true)' : ')';
+        signals.push({
+          name: selCmpt.name,
+          update: "".concat(VL_SELECTION_RESOLVE, "(").concat(store, ", ").concat(vega.stringValue(resolve)).concat(isPoint)
+        });
+      }
+
+      hasSelections = true;
+
+      for (const c of selectionCompilers) {
+        if (c.defined(selCmpt) && c.topLevelSignals) {
+          signals = c.topLevelSignals(model, selCmpt, signals);
+        }
+      }
+    }
+
+    if (hasSelections) {
+      const hasUnit = signals.filter(s => s.name === 'unit');
+
+      if (hasUnit.length === 0) {
+        signals.unshift({
+          name: 'unit',
+          value: {},
+          on: [{
+            events: 'mousemove',
+            update: 'isTuple(group()) ? group() : unit'
+          }]
+        });
+      }
+    }
+
+    return cleanupEmptyOnArray(signals);
+  }
+  function assembleUnitSelectionData(model, data) {
+    const dataCopy = [...data];
+
+    for (const selCmpt of vals((_model$component$sele3 = model.component.selection) !== null && _model$component$sele3 !== void 0 ? _model$component$sele3 : {})) {
+      var _model$component$sele3;
+
+      const init = {
+        name: selCmpt.name + STORE
+      };
+
+      if (selCmpt.init) {
+        const fields = selCmpt.project.items.map(proj => {
+          const {
+            signals,
+            ...rest
+          } = proj;
+          return rest;
+        });
+        init.values = selCmpt.init.map(i => ({
+          unit: unitName(model, {
+            escape: false
+          }),
+          fields,
+          values: assembleInit(i, false)
+        }));
+      }
+
+      const contains = dataCopy.filter(d => d.name === selCmpt.name + STORE);
+
+      if (!contains.length) {
+        dataCopy.push(init);
+      }
+    }
+
+    return dataCopy;
+  }
+  function assembleUnitSelectionMarks(model, marks) {
+    for (const selCmpt of vals((_model$component$sele4 = model.component.selection) !== null && _model$component$sele4 !== void 0 ? _model$component$sele4 : {})) {
+      var _model$component$sele4;
+
+      for (const c of selectionCompilers) {
+        if (c.defined(selCmpt) && c.marks) {
+          marks = c.marks(model, selCmpt, marks);
+        }
+      }
+    }
+
+    return marks;
+  }
+  function assembleLayerSelectionMarks(model, marks) {
+    for (const child of model.children) {
+      if (isUnitModel(child)) {
+        marks = assembleUnitSelectionMarks(child, marks);
+      }
+    }
+
+    return marks;
+  }
+  function assembleSelectionScaleDomain(model, extent, scaleCmpt, domain) {
+    const parsedExtent = parseSelectionExtent(model, extent.param, extent);
+    return {
+      signal: hasContinuousDomain(scaleCmpt.get('type')) && vega.isArray(domain) && domain[0] > domain[1] ? "isValid(".concat(parsedExtent, ") && reverse(").concat(parsedExtent, ")") : parsedExtent
+    };
+  }
+
+  function cleanupEmptyOnArray(signals) {
+    return signals.map(s => {
+      if (s.on && !s.on.length) delete s.on;
+      return s;
+    });
+  }
+
+  /**
+   * A node in the dataflow tree.
+   */
+
+  class DataFlowNode {
+    constructor(parent, debugName) {
+      this.debugName = debugName;
+
+      _defineProperty(this, "_children", []);
+
+      _defineProperty(this, "_parent", null);
+
+      _defineProperty(this, "_hash", void 0);
+
+      if (parent) {
+        this.parent = parent;
+      }
+    }
+    /**
+     * Clone this node with a deep copy but don't clone links to children or parents.
+     */
+
+
+    clone() {
+      throw new Error('Cannot clone node');
+    }
+    /**
+     * Return a hash of the node.
+     */
+
+
+    get parent() {
+      return this._parent;
+    }
+    /**
+     * Set the parent of the node and also add this node to the parent's children.
+     */
+
+
+    set parent(parent) {
+      this._parent = parent;
+
+      if (parent) {
+        parent.addChild(this);
+      }
+    }
+
+    get children() {
+      return this._children;
+    }
+
+    numChildren() {
+      return this._children.length;
+    }
+
+    addChild(child, loc) {
+      // do not add the same child twice
+      if (this._children.includes(child)) {
+        warn(ADD_SAME_CHILD_TWICE);
+        return;
+      }
+
+      if (loc !== undefined) {
+        this._children.splice(loc, 0, child);
+      } else {
+        this._children.push(child);
+      }
+    }
+
+    removeChild(oldChild) {
+      const loc = this._children.indexOf(oldChild);
+
+      this._children.splice(loc, 1);
+
+      return loc;
+    }
+    /**
+     * Remove node from the dataflow.
+     */
+
+
+    remove() {
+      let loc = this._parent.removeChild(this);
+
+      for (const child of this._children) {
+        // do not use the set method because we want to insert at a particular location
+        child._parent = this._parent;
+
+        this._parent.addChild(child, loc++);
+      }
+    }
+    /**
+     * Insert another node as a parent of this node.
+     */
+
+
+    insertAsParentOf(other) {
+      const parent = other.parent;
+      parent.removeChild(this);
+      this.parent = parent;
+      other.parent = this;
+    }
+
+    swapWithParent() {
+      const parent = this._parent;
+      const newParent = parent.parent; // reconnect the children
+
+      for (const child of this._children) {
+        child.parent = parent;
+      } // remove old links
+
+
+      this._children = []; // equivalent to removing every child link one by one
+
+      parent.removeChild(this);
+      parent.parent.removeChild(parent); // swap two nodes
+
+      this.parent = newParent;
+      parent.parent = this;
+    }
+
+  }
+  class OutputNode extends DataFlowNode {
+    clone() {
+      const cloneObj = new this.constructor();
+      cloneObj.debugName = "clone_".concat(this.debugName);
+      cloneObj._source = this._source;
+      cloneObj._name = "clone_".concat(this._name);
+      cloneObj.type = this.type;
+      cloneObj.refCounts = this.refCounts;
+      cloneObj.refCounts[cloneObj._name] = 0;
+      return cloneObj;
+    }
+    /**
+     * @param source The name of the source. Will change in assemble.
+     * @param type The type of the output node.
+     * @param refCounts A global ref counter map.
+     */
+
+
+    constructor(parent, source, type, refCounts) {
+      super(parent, source);
+      this.type = type;
+      this.refCounts = refCounts;
+
+      _defineProperty(this, "_source", void 0);
+
+      _defineProperty(this, "_name", void 0);
+
+      this._source = this._name = source;
+
+      if (this.refCounts && !(this._name in this.refCounts)) {
+        this.refCounts[this._name] = 0;
+      }
+    }
+
+    dependentFields() {
+      return new Set();
+    }
+
+    producedFields() {
+      return new Set();
+    }
+
+    hash() {
+      if (this._hash === undefined) {
+        this._hash = "Output ".concat(uniqueId());
+      }
+
+      return this._hash;
+    }
+    /**
+     * Request the datasource name and increase the ref counter.
+     *
+     * During the parsing phase, this will return the simple name such as 'main' or 'raw'.
+     * It is crucial to request the name from an output node to mark it as a required node.
+     * If nobody ever requests the name, this datasource will not be instantiated in the assemble phase.
+     *
+     * In the assemble phase, this will return the correct name.
+     */
+
+
+    getSource() {
+      this.refCounts[this._name]++;
+      return this._source;
+    }
+
+    isRequired() {
+      return !!this.refCounts[this._name];
+    }
+
+    setSource(source) {
+      this._source = source;
+    }
+
+  }
+
+  class TimeUnitNode extends DataFlowNode {
+    clone() {
+      return new TimeUnitNode(null, duplicate(this.formula));
+    }
+
+    constructor(parent, formula) {
+      super(parent);
+      this.formula = formula;
+    }
+
+    static makeFromEncoding(parent, model) {
+      const formula = model.reduceFieldDef((timeUnitComponent, fieldDef) => {
+        const {
+          field,
+          timeUnit
+        } = fieldDef;
+
+        if (timeUnit) {
+          const as = vgField(fieldDef, {
+            forAs: true
+          });
+          timeUnitComponent[hash({
+            as,
+            field,
+            timeUnit
+          })] = {
+            as,
+            field,
+            timeUnit
+          };
+        }
+
+        return timeUnitComponent;
+      }, {});
+
+      if (isEmpty(formula)) {
+        return null;
+      }
+
+      return new TimeUnitNode(parent, formula);
+    }
+
+    static makeFromTransform(parent, t) {
+      const {
+        timeUnit,
+        ...other
+      } = { ...t
+      };
+      const normalizedTimeUnit = normalizeTimeUnit(timeUnit);
+      const component = { ...other,
+        timeUnit: normalizedTimeUnit
+      };
+      return new TimeUnitNode(parent, {
+        [hash(component)]: component
+      });
+    }
+    /**
+     * Merge together TimeUnitNodes assigning the children of `other` to `this`
+     * and removing `other`.
+     */
+
+
+    merge(other) {
+      this.formula = { ...this.formula
+      }; // if the same hash happen twice, merge
+
+      for (const key in other.formula) {
+        if (!this.formula[key]) {
+          // copy if it's not a duplicate
+          this.formula[key] = other.formula[key];
+        }
+      }
+
+      for (const child of other.children) {
+        other.removeChild(child);
+        child.parent = this;
+      }
+
+      other.remove();
+    }
+    /**
+     * Remove time units coming from the other node.
+     */
+
+
+    removeFormulas(fields) {
+      const newFormula = {};
+
+      for (const [key, timeUnit] of entries$1(this.formula)) {
+        if (!fields.has(timeUnit.as)) {
+          newFormula[key] = timeUnit;
+        }
+      }
+
+      this.formula = newFormula;
+    }
+
+    producedFields() {
+      return new Set(vals(this.formula).map(f => f.as));
+    }
+
+    dependentFields() {
+      return new Set(vals(this.formula).map(f => f.field));
+    }
+
+    hash() {
+      return "TimeUnit ".concat(hash(this.formula));
+    }
+
+    assemble() {
+      const transforms = [];
+
+      for (const f of vals(this.formula)) {
+        const {
+          field,
+          as,
+          timeUnit
+        } = f;
+        const {
+          unit,
+          utc,
+          ...params
+        } = normalizeTimeUnit(timeUnit);
+        transforms.push({
+          field: replacePathInField(field),
+          type: 'timeunit',
+          ...(unit ? {
+            units: getTimeUnitParts(unit)
+          } : {}),
+          ...(utc ? {
+            timezone: 'utc'
+          } : {}),
+          ...params,
+          as: [as, "".concat(as, "_end")]
+        });
+      }
+
+      return transforms;
+    }
+
+  }
+
+  const TUPLE_FIELDS = '_tuple_fields';
+  /**
+   * Whether the selection tuples hold enumerated or ranged values for a field.
+   */
+
+  class SelectionProjectionComponent {
+    constructor() {
+      _defineProperty(this, "hasChannel", void 0);
+
+      _defineProperty(this, "hasField", void 0);
+
+      _defineProperty(this, "timeUnit", void 0);
+
+      _defineProperty(this, "items", void 0);
+
+      for (var _len = arguments.length, items = new Array(_len), _key = 0; _key < _len; _key++) {
+        items[_key] = arguments[_key];
+      }
+
+      this.items = items;
+      this.hasChannel = {};
+      this.hasField = {};
+    }
+
+  }
+  const project = {
+    defined: () => {
+      return true; // This transform handles its own defaults, so always run parse.
+    },
+    parse: (model, selCmpt, selDef) => {
+      var _selCmpt$project;
+
+      const name = selCmpt.name;
+      const proj = (_selCmpt$project = selCmpt.project) !== null && _selCmpt$project !== void 0 ? _selCmpt$project : selCmpt.project = new SelectionProjectionComponent();
+      const parsed = {};
+      const timeUnits = {};
+      const signals = new Set();
+
+      const signalName = (p, range) => {
+        const suffix = range === 'visual' ? p.channel : p.field;
+        let sg = varName("".concat(name, "_").concat(suffix));
+
+        for (let counter = 1; signals.has(sg); counter++) {
+          sg = varName("".concat(name, "_").concat(suffix, "_").concat(counter));
+        }
+
+        signals.add(sg);
+        return {
+          [range]: sg
+        };
+      };
+
+      const type = selCmpt.type;
+      const cfg = model.config.selection[type];
+      const init = selDef.value !== undefined ? vega.array(selDef.value) : null; // If no explicit projection (either fields or encodings) is specified, set some defaults.
+      // If an initial value is set, try to infer projections.
+
+      let {
+        fields,
+        encodings
+      } = vega.isObject(selDef.select) ? selDef.select : {};
+
+      if (!fields && !encodings && init) {
+        for (const initVal of init) {
+          // initVal may be a scalar value to smoothen varParam -> pointSelection gradient.
+          if (!vega.isObject(initVal)) {
+            continue;
+          }
+
+          for (const key of keys(initVal)) {
+            if (isSingleDefUnitChannel(key)) {
+              (encodings || (encodings = [])).push(key);
+            } else {
+              if (type === 'interval') {
+                warn(INTERVAL_INITIALIZED_WITH_X_Y);
+                encodings = cfg.encodings;
+              } else {
+                (fields || (fields = [])).push(key);
+              }
+            }
+          }
+        }
+      } // If no initial value is specified, use the default configuration.
+      // We break this out as a separate if block (instead of an else condition)
+      // to account for unprojected point selections that have scalar initial values
+
+
+      if (!fields && !encodings) {
+        encodings = cfg.encodings;
+
+        if ('fields' in cfg) {
+          fields = cfg.fields;
+        }
+      }
+
+      for (const channel of (_encodings = encodings) !== null && _encodings !== void 0 ? _encodings : []) {
+        var _encodings;
+
+        const fieldDef = model.fieldDef(channel);
+
+        if (fieldDef) {
+          let field = fieldDef.field;
+
+          if (fieldDef.aggregate) {
+            warn(cannotProjectAggregate(channel, fieldDef.aggregate));
+            continue;
+          } else if (!field) {
+            warn(cannotProjectOnChannelWithoutField(channel));
+            continue;
+          }
+
+          if (fieldDef.timeUnit) {
+            field = model.vgField(channel); // Construct TimeUnitComponents which will be combined into a
+            // TimeUnitNode. This node may need to be inserted into the
+            // dataflow if the selection is used across views that do not
+            // have these time units defined.
+
+            const component = {
+              timeUnit: fieldDef.timeUnit,
+              as: field,
+              field: fieldDef.field
+            };
+            timeUnits[hash(component)] = component;
+          } // Prevent duplicate projections on the same field.
+          // TODO: what if the same field is bound to multiple channels (e.g., SPLOM diag).
+
+
+          if (!parsed[field]) {
+            // Determine whether the tuple will store enumerated or ranged values.
+            // Interval selections store ranges for continuous scales, and enumerations otherwise.
+            // Single/multi selections store ranges for binned fields, and enumerations otherwise.
+            let tplType = 'E';
+
+            if (type === 'interval') {
+              const scaleType = model.getScaleComponent(channel).get('type');
+
+              if (hasContinuousDomain(scaleType)) {
+                tplType = 'R';
+              }
+            } else if (fieldDef.bin) {
+              tplType = 'R-RE';
+            }
+
+            const p = {
+              field,
+              channel,
+              type: tplType
+            };
+            p.signals = { ...signalName(p, 'data'),
+              ...signalName(p, 'visual')
+            };
+            proj.items.push(parsed[field] = p);
+            proj.hasField[field] = proj.hasChannel[channel] = parsed[field];
+          }
+        } else {
+          warn(cannotProjectOnChannelWithoutField(channel));
+        }
+      }
+
+      for (const field of (_fields = fields) !== null && _fields !== void 0 ? _fields : []) {
+        var _fields;
+
+        if (proj.hasField[field]) continue;
+        const p = {
+          type: 'E',
+          field
+        };
+        p.signals = { ...signalName(p, 'data')
+        };
+        proj.items.push(p);
+        proj.hasField[field] = p;
+      }
+
+      if (init) {
+        selCmpt.init = init.map(v => {
+          // Selections can be initialized either with a full object that maps projections to values
+          // or scalar values to smoothen the abstraction gradient from variable params to point selections.
+          return proj.items.map(p => vega.isObject(v) ? v[p.channel] !== undefined ? v[p.channel] : v[p.field] : v);
+        });
+      }
+
+      if (!isEmpty(timeUnits)) {
+        proj.timeUnit = new TimeUnitNode(null, timeUnits);
+      }
+    },
+    signals: (model, selCmpt, allSignals) => {
+      const name = selCmpt.name + TUPLE_FIELDS;
+      const hasSignal = allSignals.filter(s => s.name === name);
+      return hasSignal.length > 0 ? allSignals : allSignals.concat({
+        name,
+        value: selCmpt.project.items.map(proj => {
+          const {
+            signals,
+            hasLegend,
+            ...rest
+          } = proj;
+          rest.field = replacePathInField(rest.field);
+          return rest;
+        })
+      });
+    }
+  };
+
+  const scaleBindings = {
+    defined: selCmpt => {
+      return selCmpt.type === 'interval' && selCmpt.resolve === 'global' && selCmpt.bind && selCmpt.bind === 'scales';
+    },
+    parse: (model, selCmpt) => {
+      const bound = selCmpt.scales = [];
+
+      for (const proj of selCmpt.project.items) {
+        const channel = proj.channel;
+
+        if (!isScaleChannel(channel)) {
+          continue;
+        }
+
+        const scale = model.getScaleComponent(channel);
+        const scaleType = scale ? scale.get('type') : undefined;
+
+        if (!scale || !hasContinuousDomain(scaleType)) {
+          warn(SCALE_BINDINGS_CONTINUOUS);
+          continue;
+        }
+
+        scale.set('selectionExtent', {
+          param: selCmpt.name,
+          field: proj.field
+        }, true);
+        bound.push(proj);
+      }
+    },
+    topLevelSignals: (model, selCmpt, signals) => {
+      const bound = selCmpt.scales.filter(proj => signals.filter(s => s.name === proj.signals.data).length === 0); // Top-level signals are only needed for multiview displays and if this
+      // view's top-level signals haven't already been generated.
+
+      if (!model.parent || isTopLevelLayer(model) || bound.length === 0) {
+        return signals;
+      } // vlSelectionResolve does not account for the behavior of bound scales in
+      // multiview displays. Each unit view adds a tuple to the store, but the
+      // state of the selection is the unit selection most recently updated. This
+      // state is captured by the top-level signals that we insert and "push
+      // outer" to from within the units. We need to reassemble this state into
+      // the top-level named signal, except no single selCmpt has a global view.
+
+
+      const namedSg = signals.filter(s => s.name === selCmpt.name)[0];
+      let update = namedSg.update;
+
+      if (update.indexOf(VL_SELECTION_RESOLVE) >= 0) {
+        namedSg.update = "{".concat(bound.map(proj => "".concat(vega.stringValue(replacePathInField(proj.field)), ": ").concat(proj.signals.data)).join(', '), "}");
+      } else {
+        for (const proj of bound) {
+          const mapping = "".concat(vega.stringValue(replacePathInField(proj.field)), ": ").concat(proj.signals.data);
+
+          if (!update.includes(mapping)) {
+            update = "".concat(update.substring(0, update.length - 1), ", ").concat(mapping, "}");
+          }
+        }
+
+        namedSg.update = update;
+      }
+
+      return signals.concat(bound.map(proj => ({
+        name: proj.signals.data
+      })));
+    },
+    signals: (model, selCmpt, signals) => {
+      // Nested signals need only push to top-level signals with multiview displays.
+      if (model.parent && !isTopLevelLayer(model)) {
+        for (const proj of selCmpt.scales) {
+          const signal = signals.filter(s => s.name === proj.signals.data)[0];
+          signal.push = 'outer';
+          delete signal.value;
+          delete signal.update;
+        }
+      }
+
+      return signals;
+    }
+  };
+  function domain(model, channel) {
+    const scale = vega.stringValue(model.scaleName(channel));
+    return "domain(".concat(scale, ")");
+  }
+
+  function isTopLevelLayer(model) {
+    var _model$parent$parent;
+
+    return model.parent && isLayerModel(model.parent) && ((_model$parent$parent = !model.parent.parent) !== null && _model$parent$parent !== void 0 ? _model$parent$parent : isTopLevelLayer(model.parent.parent));
+  }
+
+  const BRUSH = '_brush';
+  const SCALE_TRIGGER = '_scale_trigger';
+  const interval = {
+    defined: selCmpt => selCmpt.type === 'interval',
+    signals: (model, selCmpt, signals) => {
+      const name = selCmpt.name;
+      const fieldsSg = name + TUPLE_FIELDS;
+      const hasScales = scaleBindings.defined(selCmpt);
+      const init = selCmpt.init ? selCmpt.init[0] : null;
+      const dataSignals = [];
+      const scaleTriggers = [];
+
+      if (selCmpt.translate && !hasScales) {
+        const filterExpr = "!event.item || event.item.mark.name !== ".concat(vega.stringValue(name + BRUSH));
+        events(selCmpt, (on, evt) => {
+          var _evt$between$, _evt$between$$filter;
+
+          const filters = vega.array((_evt$between$$filter = (_evt$between$ = evt.between[0]).filter) !== null && _evt$between$$filter !== void 0 ? _evt$between$$filter : _evt$between$.filter = []);
+
+          if (!filters.includes(filterExpr)) {
+            filters.push(filterExpr);
+          }
+
+          return on;
+        });
+      }
+
+      selCmpt.project.items.forEach((proj, i) => {
+        const channel = proj.channel;
+
+        if (channel !== X && channel !== Y) {
+          warn('Interval selections only support x and y encoding channels.');
+          return;
+        }
+
+        const val = init ? init[i] : null;
+        const cs = channelSignals(model, selCmpt, proj, val);
+        const dname = proj.signals.data;
+        const vname = proj.signals.visual;
+        const scaleName = vega.stringValue(model.scaleName(channel));
+        const scaleType = model.getScaleComponent(channel).get('type');
+        const toNum = hasContinuousDomain(scaleType) ? '+' : '';
+        signals.push(...cs);
+        dataSignals.push(dname);
+        scaleTriggers.push({
+          scaleName: model.scaleName(channel),
+          expr: "(!isArray(".concat(dname, ") || ") + "(".concat(toNum, "invert(").concat(scaleName, ", ").concat(vname, ")[0] === ").concat(toNum).concat(dname, "[0] && ") + "".concat(toNum, "invert(").concat(scaleName, ", ").concat(vname, ")[1] === ").concat(toNum).concat(dname, "[1]))")
+        });
+      }); // Proxy scale reactions to ensure that an infinite loop doesn't occur
+      // when an interval selection filter touches the scale.
+
+      if (!hasScales && scaleTriggers.length) {
+        signals.push({
+          name: name + SCALE_TRIGGER,
+          value: {},
+          on: [{
+            events: scaleTriggers.map(t => ({
+              scale: t.scaleName
+            })),
+            update: "".concat(scaleTriggers.map(t => t.expr).join(' && '), " ? ").concat(name + SCALE_TRIGGER, " : {}")
+          }]
+        });
+      } // Only add an interval to the store if it has valid data extents. Data extents
+      // are set to null if pixel extents are equal to account for intervals over
+      // ordinal/nominal domains which, when inverted, will still produce a valid datum.
+
+
+      const update = "unit: ".concat(unitName(model), ", fields: ").concat(fieldsSg, ", values");
+      return signals.concat({
+        name: name + TUPLE,
+        ...(init ? {
+          init: "{".concat(update, ": ").concat(assembleInit(init), "}")
+        } : {}),
+        ...(dataSignals.length ? {
+          on: [{
+            events: [{
+              signal: dataSignals.join(' || ')
+            }],
+            // Prevents double invocation, see https://github.com/vega/vega#1672.
+            update: "".concat(dataSignals.join(' && '), " ? {").concat(update, ": [").concat(dataSignals, "]} : null")
+          }]
+        } : {})
+      });
+    },
+    marks: (model, selCmpt, marks) => {
+      const name = selCmpt.name;
+      const {
+        x,
+        y
+      } = selCmpt.project.hasChannel;
+      const xvname = x === null || x === void 0 ? void 0 : x.signals.visual;
+      const yvname = y === null || y === void 0 ? void 0 : y.signals.visual;
+      const store = "data(".concat(vega.stringValue(selCmpt.name + STORE), ")"); // Do not add a brush if we're binding to scales
+      // or we don't have a valid interval projection
+
+      if (scaleBindings.defined(selCmpt) || !x && !y) {
+        return marks;
+      }
+
+      const update = {
+        x: x !== undefined ? {
+          signal: "".concat(xvname, "[0]")
+        } : {
+          value: 0
+        },
+        y: y !== undefined ? {
+          signal: "".concat(yvname, "[0]")
+        } : {
+          value: 0
+        },
+        x2: x !== undefined ? {
+          signal: "".concat(xvname, "[1]")
+        } : {
+          field: {
+            group: 'width'
+          }
+        },
+        y2: y !== undefined ? {
+          signal: "".concat(yvname, "[1]")
+        } : {
+          field: {
+            group: 'height'
+          }
+        }
+      }; // If the selection is resolved to global, only a single interval is in
+      // the store. Wrap brush mark's encodings with a production rule to test
+      // this based on the `unit` property. Hide the brush mark if it corresponds
+      // to a unit different from the one in the store.
+
+      if (selCmpt.resolve === 'global') {
+        for (const key of keys(update)) {
+          update[key] = [{
+            test: "".concat(store, ".length && ").concat(store, "[0].unit === ").concat(unitName(model)),
+            ...update[key]
+          }, {
+            value: 0
+          }];
+        }
+      } // Two brush marks ensure that fill colors and other aesthetic choices do
+      // not interefere with the core marks, but that the brushed region can still
+      // be interacted with (e.g., dragging it around).
+
+
+      const {
+        fill,
+        fillOpacity,
+        cursor,
+        ...stroke
+      } = selCmpt.mark;
+      const vgStroke = keys(stroke).reduce((def, k) => {
+        def[k] = [{
+          test: [x !== undefined && "".concat(xvname, "[0] !== ").concat(xvname, "[1]"), y !== undefined && "".concat(yvname, "[0] !== ").concat(yvname, "[1]")].filter(t => t).join(' && '),
+          value: stroke[k]
+        }, {
+          value: null
+        }];
+        return def;
+      }, {});
+      return [{
+        name: "".concat(name + BRUSH, "_bg"),
+        type: 'rect',
+        clip: true,
+        encode: {
+          enter: {
+            fill: {
+              value: fill
+            },
+            fillOpacity: {
+              value: fillOpacity
+            }
+          },
+          update
+        }
+      }, ...marks, {
+        name: name + BRUSH,
+        type: 'rect',
+        clip: true,
+        encode: {
+          enter: { ...(cursor ? {
+              cursor: {
+                value: cursor
+              }
+            } : {}),
+            fill: {
+              value: 'transparent'
+            }
+          },
+          update: { ...update,
+            ...vgStroke
+          }
+        }
+      }];
+    }
+  };
+  /**
+   * Returns the visual and data signals for an interval selection.
+   */
+
+  function channelSignals(model, selCmpt, proj, init) {
+    const channel = proj.channel;
+    const vname = proj.signals.visual;
+    const dname = proj.signals.data;
+    const hasScales = scaleBindings.defined(selCmpt);
+    const scaleName = vega.stringValue(model.scaleName(channel));
+    const scale = model.getScaleComponent(channel);
+    const scaleType = scale ? scale.get('type') : undefined;
+
+    const scaled = str => "scale(".concat(scaleName, ", ").concat(str, ")");
+
+    const size = model.getSizeSignalRef(channel === X ? 'width' : 'height').signal;
+    const coord = "".concat(channel, "(unit)");
+    const on = events(selCmpt, (def, evt) => {
+      return [...def, {
+        events: evt.between[0],
+        update: "[".concat(coord, ", ").concat(coord, "]")
+      }, // Brush Start
+      {
+        events: evt,
+        update: "[".concat(vname, "[0], clamp(").concat(coord, ", 0, ").concat(size, ")]")
+      } // Brush End
+      ];
+    }); // React to pan/zooms of continuous scales. Non-continuous scales
+    // (band, point) cannot be pan/zoomed and any other changes
+    // to their domains (e.g., filtering) should clear the brushes.
+
+    on.push({
+      events: {
+        signal: selCmpt.name + SCALE_TRIGGER
+      },
+      update: hasContinuousDomain(scaleType) ? "[".concat(scaled("".concat(dname, "[0]")), ", ").concat(scaled("".concat(dname, "[1]")), "]") : "[0, 0]"
+    });
+    return hasScales ? [{
+      name: dname,
+      on: []
+    }] : [{
+      name: vname,
+      ...(init ? {
+        init: assembleInit(init, true, scaled)
+      } : {
+        value: []
+      }),
+      on
+    }, {
+      name: dname,
+      ...(init ? {
+        init: assembleInit(init)
+      } : {}),
+      // Cannot be `value` as `init` may require datetime exprs.
+      on: [{
+        events: {
+          signal: vname
+        },
+        update: "".concat(vname, "[0] === ").concat(vname, "[1] ? null : invert(").concat(scaleName, ", ").concat(vname, ")")
+      }]
+    }];
+  }
+
+  function events(selCmpt, cb) {
+    return selCmpt.events.reduce((on, evt) => {
+      if (!evt.between) {
+        warn("".concat(evt, " is not an ordered event stream for interval selections."));
+        return on;
+      }
+
+      return cb(on, evt);
+    }, []);
+  }
+
+  const point$1 = {
+    defined: selCmpt => selCmpt.type === 'point',
+    signals: (model, selCmpt, signals) => {
+      var _model$component$sele;
+
+      const name = selCmpt.name;
+      const fieldsSg = name + TUPLE_FIELDS;
+      const project = selCmpt.project;
+      const datum = '(item().isVoronoi ? datum.datum : datum)';
+      const values = project.items.map(p => {
+        const fieldDef = model.fieldDef(p.channel); // Binned fields should capture extents, for a range test against the raw field.
+
+        return fieldDef !== null && fieldDef !== void 0 && fieldDef.bin ? "[".concat(datum, "[").concat(vega.stringValue(model.vgField(p.channel, {})), "], ") + "".concat(datum, "[").concat(vega.stringValue(model.vgField(p.channel, {
+          binSuffix: 'end'
+        })), "]]") : "".concat(datum, "[").concat(vega.stringValue(p.field), "]");
+      }).join(', '); // Only add a discrete selection to the store if a datum is present _and_
+      // the interaction isn't occurring on a group mark. This guards against
+      // polluting interactive state with invalid values in faceted displays
+      // as the group marks are also data-driven. We force the update to account
+      // for constant null states but varying toggles (e.g., shift-click in
+      // whitespace followed by a click in whitespace; the store should only
+      // be cleared on the second click).
+
+      const update = "unit: ".concat(unitName(model), ", fields: ").concat(fieldsSg, ", values");
+      const events = selCmpt.events;
+      const brushes = vals((_model$component$sele = model.component.selection) !== null && _model$component$sele !== void 0 ? _model$component$sele : {}).reduce((acc, cmpt) => {
+        return cmpt.type === 'interval' ? acc.concat(cmpt.name + BRUSH) : acc;
+      }, []).map(b => "indexof(item().mark.name, '".concat(b, "') < 0")).join(' && ');
+      const test = "datum && item().mark.marktype !== 'group'".concat(brushes ? " && ".concat(brushes) : '');
+      return signals.concat([{
+        name: name + TUPLE,
+        on: events ? [{
+          events,
+          update: "".concat(test, " ? {").concat(update, ": [").concat(values, "]} : null"),
+          force: true
+        }] : []
+      }]);
+    }
+  };
+
+  /**
+   * Return a mixin that includes a Vega production rule for a Vega-Lite conditional channel definition
+   * or a simple mixin if channel def has no condition.
+   */
+  function wrapCondition(model, channelDef, vgChannel, refFn) {
+    const condition = isConditionalDef(channelDef) && channelDef.condition;
+    const valueRef = refFn(channelDef);
+
+    if (condition) {
+      const conditions = vega.array(condition);
+      const vgConditions = conditions.map(c => {
+        const conditionValueRef = refFn(c);
+
+        if (isConditionalParameter(c)) {
+          const {
+            param,
+            empty
+          } = c;
+          const test = parseSelectionPredicate(model, {
+            param,
+            empty
+          });
+          return {
+            test,
+            ...conditionValueRef
+          };
+        } else {
+          const test = expression(model, c.test); // FIXME: remove casting once TS is no longer dumb about it
+
+          return {
+            test,
+            ...conditionValueRef
+          };
+        }
+      });
+      return {
+        [vgChannel]: [...vgConditions, ...(valueRef !== undefined ? [valueRef] : [])]
+      };
+    } else {
+      return valueRef !== undefined ? {
+        [vgChannel]: valueRef
+      } : {};
+    }
+  }
+
+  function text$1(model) {
+    let channel = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'text';
+    const channelDef = model.encoding[channel];
+    return wrapCondition(model, channelDef, channel, cDef => textRef(cDef, model.config));
+  }
+  function textRef(channelDef, config) {
+    let expr = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'datum';
+
+    // text
+    if (channelDef) {
+      if (isValueDef(channelDef)) {
+        return signalOrValueRef(channelDef.value);
+      }
+
+      if (isFieldOrDatumDef(channelDef)) {
+        const {
+          format,
+          formatType
+        } = getFormatMixins(channelDef);
+        return formatSignalRef({
+          fieldOrDatumDef: channelDef,
+          format,
+          formatType,
+          expr,
+          config
+        });
+      }
+    }
+
+    return undefined;
+  }
+
+  function tooltip(model) {
+    let opt = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    const {
+      encoding,
+      markDef,
+      config,
+      stack
+    } = model;
+    const channelDef = encoding.tooltip;
+
+    if (vega.isArray(channelDef)) {
+      return {
+        tooltip: tooltipRefForEncoding({
+          tooltip: channelDef
+        }, stack, config, opt)
+      };
+    } else {
+      const datum = opt.reactiveGeom ? 'datum.datum' : 'datum';
+      return wrapCondition(model, channelDef, 'tooltip', cDef => {
+        // use valueRef based on channelDef first
+        const tooltipRefFromChannelDef = textRef(cDef, config, datum);
+
+        if (tooltipRefFromChannelDef) {
+          return tooltipRefFromChannelDef;
+        }
+
+        if (cDef === null) {
+          // Allow using encoding.tooltip = null to disable tooltip
+          return undefined;
+        }
+
+        let markTooltip = getMarkPropOrConfig('tooltip', markDef, config);
+
+        if (markTooltip === true) {
+          markTooltip = {
+            content: 'encoding'
+          };
+        }
+
+        if (vega.isString(markTooltip)) {
+          return {
+            value: markTooltip
+          };
+        } else if (vega.isObject(markTooltip)) {
+          // `tooltip` is `{fields: 'encodings' | 'fields'}`
+          if (isSignalRef(markTooltip)) {
+            return markTooltip;
+          } else if (markTooltip.content === 'encoding') {
+            return tooltipRefForEncoding(encoding, stack, config, opt);
+          } else {
+            return {
+              signal: datum
+            };
+          }
+        }
+
+        return undefined;
+      });
+    }
+  }
+  function tooltipData(encoding, stack, config) {
+    let {
+      reactiveGeom
+    } = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
+    const toSkip = {};
+    const expr = reactiveGeom ? 'datum.datum' : 'datum';
+    const tuples = [];
+
+    function add(fDef, channel) {
+      var _value;
+
+      const mainChannel = getMainRangeChannel(channel);
+      const fieldDef = isTypedFieldDef(fDef) ? fDef : { ...fDef,
+        type: encoding[mainChannel].type // for secondary field def, copy type from main channel
+
+      };
+      const title = fieldDef.title || defaultTitle(fieldDef, config);
+      const key = vega.array(title).join(', ');
+      let value;
+
+      if (isXorY(channel)) {
+        const channel2 = channel === 'x' ? 'x2' : 'y2';
+        const fieldDef2 = getFieldDef(encoding[channel2]);
+
+        if (isBinned(fieldDef.bin) && fieldDef2) {
+          const startField = vgField(fieldDef, {
+            expr
+          });
+          const endField = vgField(fieldDef2, {
+            expr
+          });
+          const {
+            format,
+            formatType
+          } = getFormatMixins(fieldDef);
+          value = binFormatExpression(startField, endField, format, formatType, config);
+          toSkip[channel2] = true;
+        } else if (stack && stack.fieldChannel === channel && stack.offset === 'normalize') {
+          const {
+            format,
+            formatType
+          } = getFormatMixins(fieldDef);
+          value = formatSignalRef({
+            fieldOrDatumDef: fieldDef,
+            format,
+            formatType,
+            expr,
+            config,
+            normalizeStack: true
+          }).signal;
+        }
+      }
+
+      (_value = value) !== null && _value !== void 0 ? _value : value = textRef(fieldDef, config, expr).signal;
+      tuples.push({
+        channel,
+        key,
+        value
+      });
+    }
+
+    forEach(encoding, (channelDef, channel) => {
+      if (isFieldDef(channelDef)) {
+        add(channelDef, channel);
+      } else if (hasConditionalFieldDef(channelDef)) {
+        add(channelDef.condition, channel);
+      }
+    });
+    const out = {};
+
+    for (const {
+      channel,
+      key,
+      value
+    } of tuples) {
+      if (!toSkip[channel] && !out[key]) {
+        out[key] = value;
+      }
+    }
+
+    return out;
+  }
+  function tooltipRefForEncoding(encoding, stack, config) {
+    let {
+      reactiveGeom
+    } = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
+    const data = tooltipData(encoding, stack, config, {
+      reactiveGeom
+    });
+    const keyValues = entries$1(data).map(_ref => {
+      let [key, value] = _ref;
+      return "\"".concat(key, "\": ").concat(value);
+    });
+    return keyValues.length > 0 ? {
+      signal: "{".concat(keyValues.join(', '), "}")
+    } : undefined;
+  }
+
+  function aria(model) {
+    const {
+      markDef,
+      config
+    } = model;
+    const enableAria = getMarkPropOrConfig('aria', markDef, config); // We can ignore other aria properties if ariaHidden is true.
+
+    if (enableAria === false) {
+      // getMarkGroups sets aria to false already so we don't have to set it in the encode block
+      return {};
+    }
+
+    return { ...(enableAria ? {
+        aria: enableAria
+      } : {}),
+      ...ariaRoleDescription(model),
+      ...description(model)
+    };
+  }
+
+  function ariaRoleDescription(model) {
+    const {
+      mark,
+      markDef,
+      config
+    } = model;
+
+    if (config.aria === false) {
+      return {};
+    }
+
+    const ariaRoleDesc = getMarkPropOrConfig('ariaRoleDescription', markDef, config);
+
+    if (ariaRoleDesc != null) {
+      return {
+        ariaRoleDescription: {
+          value: ariaRoleDesc
+        }
+      };
+    }
+
+    return mark in VG_MARK_INDEX ? {} : {
+      ariaRoleDescription: {
+        value: mark
+      }
+    };
+  }
+
+  function description(model) {
+    const {
+      encoding,
+      markDef,
+      config,
+      stack
+    } = model;
+    const channelDef = encoding.description;
+
+    if (channelDef) {
+      return wrapCondition(model, channelDef, 'description', cDef => textRef(cDef, model.config));
+    } // Use default from mark def or config if defined.
+    // Functions in encode usually just return undefined but since we are defining a default below, we need to check the default here.
+
+
+    const descriptionValue = getMarkPropOrConfig('description', markDef, config);
+
+    if (descriptionValue != null) {
+      return {
+        description: signalOrValueRef(descriptionValue)
+      };
+    }
+
+    if (config.aria === false) {
+      return {};
+    }
+
+    const data = tooltipData(encoding, stack, config);
+
+    if (isEmpty(data)) {
+      return undefined;
+    }
+
+    return {
+      description: {
+        signal: entries$1(data).map((_ref, index) => {
+          let [key, value] = _ref;
+          return "\"".concat(index > 0 ? '; ' : '').concat(key, ": \" + (").concat(value, ")");
+        }).join(' + ')
+      }
+    };
+  }
+
+  /**
+   * Return encode for non-positional channels with scales. (Text doesn't have scale.)
+   */
+
+  function nonPosition(channel, model) {
+    let opt = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+    const {
+      markDef,
+      encoding,
+      config
+    } = model;
+    const {
+      vgChannel
+    } = opt;
+    let {
+      defaultRef,
+      defaultValue
+    } = opt;
+
+    if (defaultRef === undefined) {
+      var _defaultValue;
+
+      // prettier-ignore
+      (_defaultValue = defaultValue) !== null && _defaultValue !== void 0 ? _defaultValue : defaultValue = getMarkPropOrConfig(channel, markDef, config, {
+        vgChannel,
+        ignoreVgConfig: true
+      });
+
+      if (defaultValue !== undefined) {
+        defaultRef = signalOrValueRef(defaultValue);
+      }
+    }
+
+    const channelDef = encoding[channel];
+    return wrapCondition(model, channelDef, vgChannel !== null && vgChannel !== void 0 ? vgChannel : channel, cDef => {
+      return midPoint({
+        channel,
+        channelDef: cDef,
+        markDef,
+        config,
+        scaleName: model.scaleName(channel),
+        scale: model.getScaleComponent(channel),
+        stack: null,
+        // No need to provide stack for non-position as it does not affect mid point
+        defaultRef
+      });
+    });
+  }
+
+  function color(model) {
+    var _opt$filled, _ref, _getMarkPropOrConfig, _getMarkPropOrConfig2;
+
+    let opt = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
+      filled: undefined
+    };
+    const {
+      markDef,
+      encoding,
+      config
+    } = model;
+    const {
+      type: markType
+    } = markDef; // Allow filled to be overridden (for trail's "filled")
+
+    const filled = (_opt$filled = opt.filled) !== null && _opt$filled !== void 0 ? _opt$filled : getMarkPropOrConfig('filled', markDef, config);
+    const transparentIfNeeded = contains(['bar', 'point', 'circle', 'square', 'geoshape'], markType) ? 'transparent' : undefined;
+    const defaultFill = (_ref = (_getMarkPropOrConfig = getMarkPropOrConfig(filled === true ? 'color' : undefined, markDef, config, {
+      vgChannel: 'fill'
+    })) !== null && _getMarkPropOrConfig !== void 0 ? _getMarkPropOrConfig : // need to add this manually as getMarkConfig normally drops config.mark[channel] if vgChannel is specified
+    config.mark[filled === true && 'color']) !== null && _ref !== void 0 ? _ref : // If there is no fill, always fill symbols, bar, geoshape
+    // with transparent fills https://github.com/vega/vega-lite/issues/1316
+    transparentIfNeeded;
+    const defaultStroke = (_getMarkPropOrConfig2 = getMarkPropOrConfig(filled === false ? 'color' : undefined, markDef, config, {
+      vgChannel: 'stroke'
+    })) !== null && _getMarkPropOrConfig2 !== void 0 ? _getMarkPropOrConfig2 : // need to add this manually as getMarkConfig normally drops config.mark[channel] if vgChannel is specified
+    config.mark[filled === false && 'color'];
+    const colorVgChannel = filled ? 'fill' : 'stroke';
+    const fillStrokeMarkDefAndConfig = { ...(defaultFill ? {
+        fill: signalOrValueRef(defaultFill)
+      } : {}),
+      ...(defaultStroke ? {
+        stroke: signalOrValueRef(defaultStroke)
+      } : {})
+    };
+
+    if (markDef.color && (filled ? markDef.fill : markDef.stroke)) {
+      warn(droppingColor('property', {
+        fill: 'fill' in markDef,
+        stroke: 'stroke' in markDef
+      }));
+    }
+
+    return { ...fillStrokeMarkDefAndConfig,
+      ...nonPosition('color', model, {
+        vgChannel: colorVgChannel,
+        defaultValue: filled ? defaultFill : defaultStroke
+      }),
+      ...nonPosition('fill', model, {
+        // if there is encoding.fill, include default fill just in case we have conditional-only fill encoding
+        defaultValue: encoding.fill ? defaultFill : undefined
+      }),
+      ...nonPosition('stroke', model, {
+        // if there is encoding.stroke, include default fill just in case we have conditional-only stroke encoding
+        defaultValue: encoding.stroke ? defaultStroke : undefined
+      })
+    };
+  }
+
+  function zindex(model) {
+    const {
+      encoding,
+      mark
+    } = model;
+    const order = encoding.order;
+
+    if (!isPathMark(mark) && isValueDef(order)) {
+      return wrapCondition(model, order, 'zindex', cd => signalOrValueRef(cd.value));
+    }
+
+    return {};
+  }
+
+  /**
+   * Utility files for producing Vega ValueRef for marks
+   */
+  function positionOffset(_ref) {
+    let {
+      channel: baseChannel,
+      markDef,
+      encoding = {},
+      model,
+      bandPosition
+    } = _ref;
+    const channel = "".concat(baseChannel, "Offset"); // Need to cast as the type can't be inferred automatically
+
+    const defaultValue = markDef[channel];
+    const channelDef = encoding[channel];
+
+    if ((channel === 'xOffset' || channel === 'yOffset') && channelDef) {
+      const ref = midPoint({
+        channel: channel,
+        channelDef,
+        markDef,
+        config: model === null || model === void 0 ? void 0 : model.config,
+        scaleName: model.scaleName(channel),
+        scale: model.getScaleComponent(channel),
+        stack: null,
+        defaultRef: signalOrValueRef(defaultValue),
+        bandPosition
+      });
+      return {
+        offsetType: 'encoding',
+        offset: ref
+      };
+    }
+
+    const markDefOffsetValue = markDef[channel];
+
+    if (markDefOffsetValue) {
+      return {
+        offsetType: 'visual',
+        offset: markDefOffsetValue
+      };
+    }
+
+    return {};
+  }
+
+  /**
+   * Return encode for point (non-band) position channels.
+   */
+
+  function pointPosition(channel, model, _ref) {
+    let {
+      defaultPos,
+      vgChannel
+    } = _ref;
+    const {
+      encoding,
+      markDef,
+      config,
+      stack
+    } = model;
+    const channelDef = encoding[channel];
+    const channel2Def = encoding[getSecondaryRangeChannel(channel)];
+    const scaleName = model.scaleName(channel);
+    const scale = model.getScaleComponent(channel);
+    const {
+      offset,
+      offsetType
+    } = positionOffset({
+      channel,
+      markDef,
+      encoding,
+      model,
+      bandPosition: 0.5
+    }); // Get default position or position from mark def
+
+    const defaultRef = pointPositionDefaultRef({
+      model,
+      defaultPos,
+      channel,
+      scaleName,
+      scale
+    });
+    const valueRef = !channelDef && isXorY(channel) && (encoding.latitude || encoding.longitude) ? // use geopoint output if there are lat/long and there is no point position overriding lat/long.
+    {
+      field: model.getName(channel)
+    } : positionRef({
+      channel,
+      channelDef,
+      channel2Def,
+      markDef,
+      config,
+      scaleName,
+      scale,
+      stack,
+      offset,
+      defaultRef,
+      bandPosition: offsetType === 'encoding' ? 0 : undefined
+    });
+    return valueRef ? {
+      [vgChannel || channel]: valueRef
+    } : undefined;
+  } // TODO: we need to find a way to refactor these so that scaleName is a part of scale
+  // but that's complicated. For now, this is a huge step moving forward.
+
+  /**
+   * @return Vega ValueRef for normal x- or y-position without projection
+   */
+
+  function positionRef(params) {
+    const {
+      channel,
+      channelDef,
+      scaleName,
+      stack,
+      offset,
+      markDef
+    } = params; // This isn't a part of midPoint because we use midPoint for non-position too
+
+    if (isFieldOrDatumDef(channelDef) && stack && channel === stack.fieldChannel) {
+      if (isFieldDef(channelDef)) {
+        let bandPosition = channelDef.bandPosition;
+
+        if (bandPosition === undefined && markDef.type === 'text' && (channel === 'radius' || channel === 'theta')) {
+          // theta and radius of text mark should use bandPosition = 0.5 by default
+          // so that labels for arc marks are centered automatically
+          bandPosition = 0.5;
+        }
+
+        if (bandPosition !== undefined) {
+          return interpolatedSignalRef({
+            scaleName,
+            fieldOrDatumDef: channelDef,
+            // positionRef always have type
+            startSuffix: 'start',
+            bandPosition,
+            offset
+          });
+        }
+      } // x or y use stack_end so that stacked line's point mark use stack_end too.
+
+
+      return valueRefForFieldOrDatumDef(channelDef, scaleName, {
+        suffix: 'end'
+      }, {
+        offset
+      });
+    }
+
+    return midPointRefWithPositionInvalidTest(params);
+  }
+  function pointPositionDefaultRef(_ref2) {
+    let {
+      model,
+      defaultPos,
+      channel,
+      scaleName,
+      scale
+    } = _ref2;
+    const {
+      markDef,
+      config
+    } = model;
+    return () => {
+      const mainChannel = getMainRangeChannel(channel);
+      const vgChannel = getVgPositionChannel(channel);
+      const definedValueOrConfig = getMarkPropOrConfig(channel, markDef, config, {
+        vgChannel
+      });
+
+      if (definedValueOrConfig !== undefined) {
+        return widthHeightValueOrSignalRef(channel, definedValueOrConfig);
+      }
+
+      switch (defaultPos) {
+        case 'zeroOrMin':
+        case 'zeroOrMax':
+          if (scaleName) {
+            const scaleType = scale.get('type');
+
+            if (contains([ScaleType.LOG, ScaleType.TIME, ScaleType.UTC], scaleType)) ; else {
+              if (scale.domainDefinitelyIncludesZero()) {
+                return {
+                  scale: scaleName,
+                  value: 0
+                };
+              }
+            }
+          }
+
+          if (defaultPos === 'zeroOrMin') {
+            return mainChannel === 'y' ? {
+              field: {
+                group: 'height'
+              }
+            } : {
+              value: 0
+            };
+          } else {
+            // zeroOrMax
+            switch (mainChannel) {
+              case 'radius':
+                // max of radius is min(width, height) / 2
+                return {
+                  signal: "min(".concat(model.width.signal, ",").concat(model.height.signal, ")/2")
+                };
+
+              case 'theta':
+                return {
+                  signal: '2*PI'
+                };
+
+              case 'x':
+                return {
+                  field: {
+                    group: 'width'
+                  }
+                };
+
+              case 'y':
+                return {
+                  value: 0
+                };
+            }
+          }
+
+          break;
+
+        case 'mid':
+          {
+            const sizeRef = model[getSizeChannel(channel)];
+            return { ...sizeRef,
+              mult: 0.5
+            };
+          }
+      } // defaultPos === null
+
+
+      return undefined;
+    };
+  }
+
+  const ALIGNED_X_CHANNEL = {
+    left: 'x',
+    center: 'xc',
+    right: 'x2'
+  };
+  const BASELINED_Y_CHANNEL = {
+    top: 'y',
+    middle: 'yc',
+    bottom: 'y2'
+  };
+  function vgAlignedPositionChannel(channel, markDef, config) {
+    let defaultAlign = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'middle';
+
+    if (channel === 'radius' || channel === 'theta') {
+      return getVgPositionChannel(channel);
+    }
+
+    const alignChannel = channel === 'x' ? 'align' : 'baseline';
+    const align = getMarkPropOrConfig(alignChannel, markDef, config);
+    let alignExcludingSignal;
+
+    if (isSignalRef(align)) {
+      warn(rangeMarkAlignmentCannotBeExpression(alignChannel));
+      alignExcludingSignal = undefined;
+    } else {
+      alignExcludingSignal = align;
+    }
+
+    if (channel === 'x') {
+      return ALIGNED_X_CHANNEL[alignExcludingSignal || (defaultAlign === 'top' ? 'left' : 'center')];
+    } else {
+      return BASELINED_Y_CHANNEL[alignExcludingSignal || defaultAlign];
+    }
+  }
+
+  /**
+   * Utility for area/rule position, which can be either point or range.
+   * (One of the axes should be point and the other should be range.)
+   */
+
+  function pointOrRangePosition(channel, model, _ref) {
+    let {
+      defaultPos,
+      defaultPos2,
+      range
+    } = _ref;
+
+    if (range) {
+      return rangePosition(channel, model, {
+        defaultPos,
+        defaultPos2
+      });
+    }
+
+    return pointPosition(channel, model, {
+      defaultPos
+    });
+  }
+  function rangePosition(channel, model, _ref2) {
+    let {
+      defaultPos,
+      defaultPos2
+    } = _ref2;
+    const {
+      markDef,
+      config
+    } = model;
+    const channel2 = getSecondaryRangeChannel(channel);
+    const sizeChannel = getSizeChannel(channel);
+    const pos2Mixins = pointPosition2OrSize(model, defaultPos2, channel2);
+    const vgChannel = pos2Mixins[sizeChannel] ? // If there is width/height, we need to position the marks based on the alignment.
+    vgAlignedPositionChannel(channel, markDef, config) : // Otherwise, make sure to apply to the right Vg Channel (for arc mark)
+    getVgPositionChannel(channel);
+    return { ...pointPosition(channel, model, {
+        defaultPos,
+        vgChannel
+      }),
+      ...pos2Mixins
+    };
+  }
+  /**
+   * Return encode for x2, y2.
+   * If channel is not specified, return one channel based on orientation.
+   */
+
+  function pointPosition2OrSize(model, defaultPos, channel) {
+    const {
+      encoding,
+      mark,
+      markDef,
+      stack,
+      config
+    } = model;
+    const baseChannel = getMainRangeChannel(channel);
+    const sizeChannel = getSizeChannel(channel);
+    const vgChannel = getVgPositionChannel(channel);
+    const channelDef = encoding[baseChannel];
+    const scaleName = model.scaleName(baseChannel);
+    const scale = model.getScaleComponent(baseChannel);
+    const {
+      offset
+    } = channel in encoding || channel in markDef ? positionOffset({
+      channel,
+      markDef,
+      encoding,
+      model
+    }) : positionOffset({
+      channel: baseChannel,
+      markDef,
+      encoding,
+      model
+    });
+
+    if (!channelDef && (channel === 'x2' || channel === 'y2') && (encoding.latitude || encoding.longitude)) {
+      const vgSizeChannel = getSizeChannel(channel);
+      const size = model.markDef[vgSizeChannel];
+
+      if (size != null) {
+        return {
+          [vgSizeChannel]: {
+            value: size
+          }
+        };
+      } else {
+        return {
+          [vgChannel]: {
+            field: model.getName(channel)
+          }
+        };
+      }
+    }
+
+    const valueRef = position2Ref({
+      channel,
+      channelDef,
+      channel2Def: encoding[channel],
+      markDef,
+      config,
+      scaleName,
+      scale,
+      stack,
+      offset,
+      defaultRef: undefined
+    });
+
+    if (valueRef !== undefined) {
+      return {
+        [vgChannel]: valueRef
+      };
+    } // TODO: check width/height encoding here once we add them
+    // no x2/y2 encoding, then try to read x2/y2 or width/height based on precedence:
+    // markDef > config.style > mark-specific config (config[mark]) > general mark config (config.mark)
+
+
+    return position2orSize(channel, markDef) || position2orSize(channel, {
+      [channel]: getMarkStyleConfig(channel, markDef, config.style),
+      [sizeChannel]: getMarkStyleConfig(sizeChannel, markDef, config.style)
+    }) || position2orSize(channel, config[mark]) || position2orSize(channel, config.mark) || {
+      [vgChannel]: pointPositionDefaultRef({
+        model,
+        defaultPos,
+        channel,
+        scaleName,
+        scale
+      })()
+    };
+  }
+
+  function position2Ref(_ref3) {
+    let {
+      channel,
+      channelDef,
+      channel2Def,
+      markDef,
+      config,
+      scaleName,
+      scale,
+      stack,
+      offset,
+      defaultRef
+    } = _ref3;
+
+    if (isFieldOrDatumDef(channelDef) && stack && // If fieldChannel is X and channel is X2 (or Y and Y2)
+    channel.charAt(0) === stack.fieldChannel.charAt(0)) {
+      return valueRefForFieldOrDatumDef(channelDef, scaleName, {
+        suffix: 'start'
+      }, {
+        offset
+      });
+    }
+
+    return midPointRefWithPositionInvalidTest({
+      channel,
+      channelDef: channel2Def,
+      scaleName,
+      scale,
+      stack,
+      markDef,
+      config,
+      offset,
+      defaultRef
+    });
+  }
+
+  function position2orSize(channel, markDef) {
+    const sizeChannel = getSizeChannel(channel);
+    const vgChannel = getVgPositionChannel(channel);
+
+    if (markDef[vgChannel] !== undefined) {
+      return {
+        [vgChannel]: widthHeightValueOrSignalRef(channel, markDef[vgChannel])
+      };
+    } else if (markDef[channel] !== undefined) {
+      return {
+        [vgChannel]: widthHeightValueOrSignalRef(channel, markDef[channel])
+      };
+    } else if (markDef[sizeChannel]) {
+      const dimensionSize = markDef[sizeChannel];
+
+      if (isRelativeBandSize(dimensionSize)) {
+        warn(relativeBandSizeNotSupported(sizeChannel));
+      } else {
+        return {
+          [sizeChannel]: widthHeightValueOrSignalRef(channel, dimensionSize)
+        };
+      }
+    }
+
+    return undefined;
+  }
+
+  function rectPosition(model, channel) {
+    var _ref, _encoding$sizeChannel;
+
+    const {
+      config,
+      encoding,
+      markDef
+    } = model;
+    const mark = markDef.type;
+    const channel2 = getSecondaryRangeChannel(channel);
+    const sizeChannel = getSizeChannel(channel);
+    const channelDef = encoding[channel];
+    const channelDef2 = encoding[channel2];
+    const scale = model.getScaleComponent(channel);
+    const scaleType = scale ? scale.get('type') : undefined;
+    const orient = markDef.orient;
+    const hasSizeDef = (_ref = (_encoding$sizeChannel = encoding[sizeChannel]) !== null && _encoding$sizeChannel !== void 0 ? _encoding$sizeChannel : encoding.size) !== null && _ref !== void 0 ? _ref : getMarkPropOrConfig('size', markDef, config, {
+      vgChannel: sizeChannel
+    });
+    const isBarBand = mark === 'bar' && (channel === 'x' ? orient === 'vertical' : orient === 'horizontal'); // x, x2, and width -- we must specify two of these in all conditions
+
+    if (isFieldDef(channelDef) && (isBinning(channelDef.bin) || isBinned(channelDef.bin) || channelDef.timeUnit && !channelDef2) && !(hasSizeDef && !isRelativeBandSize(hasSizeDef)) && !hasDiscreteDomain(scaleType)) {
+      return rectBinPosition({
+        fieldDef: channelDef,
+        fieldDef2: channelDef2,
+        channel,
+        model
+      });
+    } else if ((isFieldOrDatumDef(channelDef) && hasDiscreteDomain(scaleType) || isBarBand) && !channelDef2) {
+      return positionAndSize(channelDef, channel, model);
+    } else {
+      return rangePosition(channel, model, {
+        defaultPos: 'zeroOrMax',
+        defaultPos2: 'zeroOrMin'
+      });
+    }
+  }
+
+  function defaultSizeRef(sizeChannel, scaleName, scale, config, bandSize) {
+    if (isRelativeBandSize(bandSize)) {
+      if (scale) {
+        const scaleType = scale.get('type');
+
+        if (scaleType === 'band') {
+          return {
+            scale: scaleName,
+            band: bandSize.band
+          };
+        } else if (bandSize.band !== 1) {
+          warn(cannotUseRelativeBandSizeWithNonBandScale(scaleType));
+          bandSize = undefined;
+        }
+      } else {
+        return {
+          mult: bandSize.band,
+          field: {
+            group: sizeChannel
+          }
+        };
+      }
+    } else if (isSignalRef(bandSize)) {
+      return bandSize;
+    } else if (bandSize) {
+      return {
+        value: bandSize
+      };
+    } // no valid band size
+
+
+    if (scale) {
+      const scaleRange = scale.get('range');
+
+      if (isVgRangeStep(scaleRange) && vega.isNumber(scaleRange.step)) {
+        return {
+          value: scaleRange.step - 2
+        };
+      }
+    }
+
+    const defaultStep = getViewConfigDiscreteStep(config.view, sizeChannel);
+    return {
+      value: defaultStep - 2
+    };
+  }
+  /**
+   * Output position encoding and its size encoding for continuous, point, and band scales.
+   */
+
+
+  function positionAndSize(fieldDef, channel, model) {
+    const {
+      markDef,
+      encoding,
+      config,
+      stack
+    } = model;
+    const orient = markDef.orient;
+    const scaleName = model.scaleName(channel);
+    const scale = model.getScaleComponent(channel);
+    const vgSizeChannel = getSizeChannel(channel);
+    const channel2 = getSecondaryRangeChannel(channel);
+    const offsetScaleChannel = getOffsetChannel(channel);
+    const offsetScaleName = model.scaleName(offsetScaleChannel); // use "size" channel for bars, if there is orient and the channel matches the right orientation
+
+    const useVlSizeChannel = orient === 'horizontal' && channel === 'y' || orient === 'vertical' && channel === 'x'; // Use size encoding / mark property / config if it exists
+
+    let sizeMixins;
+
+    if (encoding.size || markDef.size) {
+      if (useVlSizeChannel) {
+        sizeMixins = nonPosition('size', model, {
+          vgChannel: vgSizeChannel,
+          defaultRef: signalOrValueRef(markDef.size)
+        });
+      } else {
+        warn(cannotApplySizeToNonOrientedMark(markDef.type));
+      }
+    } // Otherwise, apply default value
+
+
+    const bandSize = getBandSize({
+      channel,
+      fieldDef,
+      markDef,
+      config,
+      scaleType: scale === null || scale === void 0 ? void 0 : scale.get('type'),
+      useVlSizeChannel
+    });
+    sizeMixins = sizeMixins || {
+      [vgSizeChannel]: defaultSizeRef(vgSizeChannel, offsetScaleName || scaleName, scale, config, bandSize)
+    };
+    /*
+      Band scales with size value and all point scales, use xc/yc + band=0.5
+       Otherwise (band scales that has size based on a band ref), use x/y with position band = (1 - size_band) / 2.
+      In this case, size_band is the band specified in the x/y-encoding.
+      By default band is 1, so `(1 - band) / 2` = 0.
+      If band is 0.6, the the x/y position in such case should be `(1 - band) / 2` = 0.2
+     */
+
+    const defaultBandAlign = (scale === null || scale === void 0 ? void 0 : scale.get('type')) !== 'band' || !('band' in sizeMixins[vgSizeChannel]) ? 'middle' : 'top';
+    const vgChannel = vgAlignedPositionChannel(channel, markDef, config, defaultBandAlign);
+    const center = vgChannel === 'xc' || vgChannel === 'yc';
+    const {
+      offset,
+      offsetType
+    } = positionOffset({
+      channel,
+      markDef,
+      encoding,
+      model,
+      bandPosition: center ? 0.5 : 0
+    });
+    const posRef = midPointRefWithPositionInvalidTest({
+      channel,
+      channelDef: fieldDef,
+      markDef,
+      config,
+      scaleName,
+      scale,
+      stack,
+      offset,
+      defaultRef: pointPositionDefaultRef({
+        model,
+        defaultPos: 'mid',
+        channel,
+        scaleName,
+        scale
+      }),
+      bandPosition: center ? offsetType === 'encoding' ? 0 : 0.5 : isSignalRef(bandSize) ? {
+        signal: "(1-".concat(bandSize, ")/2")
+      } : isRelativeBandSize(bandSize) ? (1 - bandSize.band) / 2 : 0
+    });
+
+    if (vgSizeChannel) {
+      return {
+        [vgChannel]: posRef,
+        ...sizeMixins
+      };
+    } else {
+      // otherwise, we must simulate size by setting position2 = position + size
+      // (for theta/radius since Vega doesn't have thetaWidth/radiusWidth)
+      const vgChannel2 = getVgPositionChannel(channel2);
+      const sizeRef = sizeMixins[vgSizeChannel];
+      const sizeOffset = offset ? { ...sizeRef,
+        offset
+      } : sizeRef;
+      return {
+        [vgChannel]: posRef,
+        // posRef might be an array that wraps position invalid test
+        [vgChannel2]: vega.isArray(posRef) ? [posRef[0], { ...posRef[1],
+          offset: sizeOffset
+        }] : { ...posRef,
+          offset: sizeOffset
+        }
+      };
+    }
+  }
+
+  function getBinSpacing(channel, spacing, reverse, translate, offset) {
+    if (isPolarPositionChannel(channel)) {
+      return 0;
+    }
+
+    const spacingOffset = channel === 'x' || channel === 'y2' ? -spacing / 2 : spacing / 2;
+
+    if (isSignalRef(reverse) || isSignalRef(offset) || isSignalRef(translate)) {
+      const reverseExpr = signalOrStringValue(reverse);
+      const offsetExpr = signalOrStringValue(offset);
+      const translateExpr = signalOrStringValue(translate);
+      const t = translateExpr ? "".concat(translateExpr, " + ") : '';
+      const r = reverseExpr ? "(".concat(reverseExpr, " ? -1 : 1) * ") : '';
+      const o = offsetExpr ? "(".concat(offsetExpr, " + ").concat(spacingOffset, ")") : spacingOffset;
+      return {
+        signal: t + r + o
+      };
+    } else {
+      offset = offset || 0;
+      return translate + (reverse ? -offset - spacingOffset : +offset + spacingOffset);
+    }
+  }
+
+  function rectBinPosition(_ref2) {
+    var _model$component$axes, _axis$get, _getMarkPropOrConfig;
+
+    let {
+      fieldDef,
+      fieldDef2,
+      channel,
+      model
+    } = _ref2;
+    const {
+      config,
+      markDef,
+      encoding
+    } = model;
+    const scale = model.getScaleComponent(channel);
+    const scaleName = model.scaleName(channel);
+    const scaleType = scale ? scale.get('type') : undefined;
+    const reverse = scale.get('reverse');
+    const bandSize = getBandSize({
+      channel,
+      fieldDef,
+      markDef,
+      config,
+      scaleType
+    });
+    const axis = (_model$component$axes = model.component.axes[channel]) === null || _model$component$axes === void 0 ? void 0 : _model$component$axes[0];
+    const axisTranslate = (_axis$get = axis === null || axis === void 0 ? void 0 : axis.get('translate')) !== null && _axis$get !== void 0 ? _axis$get : 0.5; // vega default is 0.5
+
+    const spacing = isXorY(channel) ? (_getMarkPropOrConfig = getMarkPropOrConfig('binSpacing', markDef, config)) !== null && _getMarkPropOrConfig !== void 0 ? _getMarkPropOrConfig : 0 : 0;
+    const channel2 = getSecondaryRangeChannel(channel);
+    const vgChannel = getVgPositionChannel(channel);
+    const vgChannel2 = getVgPositionChannel(channel2);
+    const {
+      offset
+    } = positionOffset({
+      channel,
+      markDef,
+      encoding,
+      model,
+      bandPosition: 0
+    });
+    const bandPosition = isSignalRef(bandSize) ? {
+      signal: "(1-".concat(bandSize.signal, ")/2")
+    } : isRelativeBandSize(bandSize) ? (1 - bandSize.band) / 2 : 0.5;
+
+    if (isBinning(fieldDef.bin) || fieldDef.timeUnit) {
+      return {
+        [vgChannel2]: rectBinRef({
+          fieldDef,
+          scaleName,
+          bandPosition,
+          offset: getBinSpacing(channel2, spacing, reverse, axisTranslate, offset)
+        }),
+        [vgChannel]: rectBinRef({
+          fieldDef,
+          scaleName,
+          bandPosition: isSignalRef(bandPosition) ? {
+            signal: "1-".concat(bandPosition.signal)
+          } : 1 - bandPosition,
+          offset: getBinSpacing(channel, spacing, reverse, axisTranslate, offset)
+        })
+      };
+    } else if (isBinned(fieldDef.bin)) {
+      const startRef = valueRefForFieldOrDatumDef(fieldDef, scaleName, {}, {
+        offset: getBinSpacing(channel2, spacing, reverse, axisTranslate, offset)
+      });
+
+      if (isFieldDef(fieldDef2)) {
+        return {
+          [vgChannel2]: startRef,
+          [vgChannel]: valueRefForFieldOrDatumDef(fieldDef2, scaleName, {}, {
+            offset: getBinSpacing(channel, spacing, reverse, axisTranslate, offset)
+          })
+        };
+      } else if (isBinParams(fieldDef.bin) && fieldDef.bin.step) {
+        return {
+          [vgChannel2]: startRef,
+          [vgChannel]: {
+            signal: "scale(\"".concat(scaleName, "\", ").concat(vgField(fieldDef, {
+              expr: 'datum'
+            }), " + ").concat(fieldDef.bin.step, ")"),
+            offset: getBinSpacing(channel, spacing, reverse, axisTranslate, offset)
+          }
+        };
+      }
+    }
+
+    warn(channelRequiredForBinned(channel2));
+    return undefined;
+  }
+  /**
+   * Value Ref for binned fields
+   */
+
+
+  function rectBinRef(_ref3) {
+    let {
+      fieldDef,
+      scaleName,
+      bandPosition,
+      offset
+    } = _ref3;
+    return interpolatedSignalRef({
+      scaleName,
+      fieldOrDatumDef: fieldDef,
+      bandPosition,
+      offset
+    });
+  }
+
+  const ALWAYS_IGNORE = new Set(['aria', 'width', 'height']);
+  function baseEncodeEntry(model, ignore) {
+    const {
+      fill = undefined,
+      stroke = undefined
+    } = ignore.color === 'include' ? color(model) : {};
+    return { ...markDefProperties(model.markDef, ignore),
+      ...wrapAllFieldsInvalid(model, 'fill', fill),
+      ...wrapAllFieldsInvalid(model, 'stroke', stroke),
+      ...nonPosition('opacity', model),
+      ...nonPosition('fillOpacity', model),
+      ...nonPosition('strokeOpacity', model),
+      ...nonPosition('strokeWidth', model),
+      ...nonPosition('strokeDash', model),
+      ...zindex(model),
+      ...tooltip(model),
+      ...text$1(model, 'href'),
+      ...aria(model)
+    };
+  } // TODO: mark VgValueRef[] as readonly after https://github.com/vega/vega/pull/1987
+
+  function wrapAllFieldsInvalid(model, channel, valueRef) {
+    const {
+      config,
+      mark,
+      markDef
+    } = model;
+    const invalid = getMarkPropOrConfig('invalid', markDef, config);
+
+    if (invalid === 'hide' && valueRef && !isPathMark(mark)) {
+      // For non-path marks, we have to exclude invalid values (null and NaN) for scales with continuous domains.
+      // For path marks, we will use "defined" property and skip these values instead.
+      const test = allFieldsInvalidPredicate$1(model, {
+        invalid: true,
+        channels: SCALE_CHANNELS
+      });
+
+      if (test) {
+        return {
+          [channel]: [// prepend the invalid case
+          // TODO: support custom value
+          {
+            test,
+            value: null
+          }, ...vega.array(valueRef)]
+        };
+      }
+    }
+
+    return valueRef ? {
+      [channel]: valueRef
+    } : {};
+  }
+
+  function markDefProperties(mark, ignore) {
+    return VG_MARK_CONFIGS.reduce((m, prop) => {
+      if (!ALWAYS_IGNORE.has(prop) && mark[prop] !== undefined && ignore[prop] !== 'ignore') {
+        m[prop] = signalOrValueRef(mark[prop]);
+      }
+
+      return m;
+    }, {});
+  }
+
+  function allFieldsInvalidPredicate$1(model, _ref) {
+    let {
+      invalid = false,
+      channels
+    } = _ref;
+    const filterIndex = channels.reduce((aggregator, channel) => {
+      const scaleComponent = model.getScaleComponent(channel);
+
+      if (scaleComponent) {
+        const scaleType = scaleComponent.get('type');
+        const field = model.vgField(channel, {
+          expr: 'datum'
+        }); // While discrete domain scales can handle invalid values, continuous scales can't.
+
+        if (field && hasContinuousDomain(scaleType)) {
+          aggregator[field] = true;
+        }
+      }
+
+      return aggregator;
+    }, {});
+    const fields = keys(filterIndex);
+
+    if (fields.length > 0) {
+      const op = invalid ? '||' : '&&';
+      return fields.map(field => fieldInvalidPredicate(field, invalid)).join(" ".concat(op, " "));
+    }
+
+    return undefined;
+  }
+
+  function defined(model) {
+    const {
+      config,
+      markDef
+    } = model;
+    const invalid = getMarkPropOrConfig('invalid', markDef, config);
+
+    if (invalid) {
+      const signal = allFieldsInvalidPredicate(model, {
+        channels: POSITION_SCALE_CHANNELS
+      });
+
+      if (signal) {
+        return {
+          defined: {
+            signal
+          }
+        };
+      }
+    }
+
+    return {};
+  }
+
+  function allFieldsInvalidPredicate(model, _ref) {
+    let {
+      invalid = false,
+      channels
+    } = _ref;
+    const filterIndex = channels.reduce((aggregator, channel) => {
+      const scaleComponent = model.getScaleComponent(channel);
+
+      if (scaleComponent) {
+        const scaleType = scaleComponent.get('type');
+        const field = model.vgField(channel, {
+          expr: 'datum'
+        }); // While discrete domain scales can handle invalid values, continuous scales can't.
+
+        if (field && hasContinuousDomain(scaleType)) {
+          aggregator[field] = true;
+        }
+      }
+
+      return aggregator;
+    }, {});
+    const fields = keys(filterIndex);
+
+    if (fields.length > 0) {
+      const op = invalid ? '||' : '&&';
+      return fields.map(field => fieldInvalidPredicate(field, invalid)).join(" ".concat(op, " "));
+    }
+
+    return undefined;
+  }
+
+  function valueIfDefined(prop, value) {
+    if (value !== undefined) {
+      return {
+        [prop]: signalOrValueRef(value)
+      };
+    }
+
+    return undefined;
+  }
+
+  const VORONOI = 'voronoi';
+  const nearest = {
+    defined: selCmpt => {
+      return selCmpt.type === 'point' && selCmpt.nearest;
+    },
+    parse: (model, selCmpt) => {
+      // Scope selection events to the voronoi mark to prevent capturing
+      // events that occur on the group mark (https://github.com/vega/vega/issues/2112).
+      if (selCmpt.events) {
+        for (const s of selCmpt.events) {
+          s.markname = model.getName(VORONOI);
+        }
+      }
+    },
+    marks: (model, selCmpt, marks) => {
+      const {
+        x,
+        y
+      } = selCmpt.project.hasChannel;
+      const markType = model.mark;
+
+      if (isPathMark(markType)) {
+        warn(nearestNotSupportForContinuous(markType));
+        return marks;
+      }
+
+      const cellDef = {
+        name: model.getName(VORONOI),
+        type: 'path',
+        interactive: true,
+        from: {
+          data: model.getName('marks')
+        },
+        encode: {
+          update: {
+            fill: {
+              value: 'transparent'
+            },
+            strokeWidth: {
+              value: 0.35
+            },
+            stroke: {
+              value: 'transparent'
+            },
+            isVoronoi: {
+              value: true
+            },
+            ...tooltip(model, {
+              reactiveGeom: true
+            })
+          }
+        },
+        transform: [{
+          type: 'voronoi',
+          x: {
+            expr: x || !y ? 'datum.datum.x || 0' : '0'
+          },
+          y: {
+            expr: y || !x ? 'datum.datum.y || 0' : '0'
+          },
+          size: [model.getSizeSignalRef('width'), model.getSizeSignalRef('height')]
+        }]
+      };
+      let index = 0;
+      let exists = false;
+      marks.forEach((mark, i) => {
+        var _mark$name;
+
+        const name = (_mark$name = mark.name) !== null && _mark$name !== void 0 ? _mark$name : '';
+
+        if (name === model.component.mark[0].name) {
+          index = i;
+        } else if (name.indexOf(VORONOI) >= 0) {
+          exists = true;
+        }
+      });
+
+      if (!exists) {
+        marks.splice(index + 1, 0, cellDef);
+      }
+
+      return marks;
+    }
+  };
+
+  const inputBindings = {
+    defined: selCmpt => {
+      return selCmpt.type === 'point' && selCmpt.resolve === 'global' && selCmpt.bind && selCmpt.bind !== 'scales' && !isLegendBinding(selCmpt.bind);
+    },
+    parse: (model, selCmpt, selDef) => disableDirectManipulation(selCmpt, selDef),
+    topLevelSignals: (model, selCmpt, signals) => {
+      const name = selCmpt.name;
+      const proj = selCmpt.project;
+      const bind = selCmpt.bind;
+      const init = selCmpt.init && selCmpt.init[0]; // Can only exist on single selections (one initial value).
+
+      const datum = nearest.defined(selCmpt) ? '(item().isVoronoi ? datum.datum : datum)' : 'datum';
+      proj.items.forEach((p, i) => {
+        const sgname = varName("".concat(name, "_").concat(p.field));
+        const hasSignal = signals.filter(s => s.name === sgname);
+
+        if (!hasSignal.length) {
+          var _ref, _bind$p$field;
+
+          signals.unshift({
+            name: sgname,
+            ...(init ? {
+              init: assembleInit(init[i])
+            } : {
+              value: null
+            }),
+            on: selCmpt.events ? [{
+              events: selCmpt.events,
+              update: "datum && item().mark.marktype !== 'group' ? ".concat(datum, "[").concat(vega.stringValue(p.field), "] : null")
+            }] : [],
+            bind: (_ref = (_bind$p$field = bind[p.field]) !== null && _bind$p$field !== void 0 ? _bind$p$field : bind[p.channel]) !== null && _ref !== void 0 ? _ref : bind
+          });
+        }
+      });
+      return signals;
+    },
+    signals: (model, selCmpt, signals) => {
+      const name = selCmpt.name;
+      const proj = selCmpt.project;
+      const signal = signals.filter(s => s.name === name + TUPLE)[0];
+      const fields = name + TUPLE_FIELDS;
+      const values = proj.items.map(p => varName("".concat(name, "_").concat(p.field)));
+      const valid = values.map(v => "".concat(v, " !== null")).join(' && ');
+
+      if (values.length) {
+        signal.update = "".concat(valid, " ? {fields: ").concat(fields, ", values: [").concat(values.join(', '), "]} : null");
+      }
+
+      delete signal.value;
+      delete signal.on;
+      return signals;
+    }
+  };
+
+  const TOGGLE = '_toggle';
+  const toggle = {
+    defined: selCmpt => {
+      return selCmpt.type === 'point' && !!selCmpt.toggle;
+    },
+    signals: (model, selCmpt, signals) => {
+      return signals.concat({
+        name: selCmpt.name + TOGGLE,
+        value: false,
+        on: [{
+          events: selCmpt.events,
+          update: selCmpt.toggle
+        }]
+      });
+    },
+    modifyExpr: (model, selCmpt) => {
+      const tpl = selCmpt.name + TUPLE;
+      const signal = selCmpt.name + TOGGLE;
+      return "".concat(signal, " ? null : ").concat(tpl, ", ") + (selCmpt.resolve === 'global' ? "".concat(signal, " ? null : true, ") : "".concat(signal, " ? null : {unit: ").concat(unitName(model), "}, ")) + "".concat(signal, " ? ").concat(tpl, " : null");
+    }
+  };
+
+  const clear = {
+    defined: selCmpt => {
+      return selCmpt.clear !== undefined && selCmpt.clear !== false;
+    },
+    parse: (model, selCmpt) => {
+      if (selCmpt.clear) {
+        selCmpt.clear = vega.isString(selCmpt.clear) ? vega.parseSelector(selCmpt.clear, 'view') : selCmpt.clear;
+      }
+    },
+    topLevelSignals: (model, selCmpt, signals) => {
+      if (inputBindings.defined(selCmpt)) {
+        for (const proj of selCmpt.project.items) {
+          const idx = signals.findIndex(n => n.name === varName("".concat(selCmpt.name, "_").concat(proj.field)));
+
+          if (idx !== -1) {
+            signals[idx].on.push({
+              events: selCmpt.clear,
+              update: 'null'
+            });
+          }
+        }
+      }
+
+      return signals;
+    },
+    signals: (model, selCmpt, signals) => {
+      function addClear(idx, update) {
+        if (idx !== -1 && signals[idx].on) {
+          signals[idx].on.push({
+            events: selCmpt.clear,
+            update
+          });
+        }
+      } // Be as minimalist as possible when adding clear triggers to minimize dataflow execution.
+
+
+      if (selCmpt.type === 'interval') {
+        for (const proj of selCmpt.project.items) {
+          const vIdx = signals.findIndex(n => n.name === proj.signals.visual);
+          addClear(vIdx, '[0, 0]');
+
+          if (vIdx === -1) {
+            const dIdx = signals.findIndex(n => n.name === proj.signals.data);
+            addClear(dIdx, 'null');
+          }
+        }
+      } else {
+        let tIdx = signals.findIndex(n => n.name === selCmpt.name + TUPLE);
+        addClear(tIdx, 'null');
+
+        if (toggle.defined(selCmpt)) {
+          tIdx = signals.findIndex(n => n.name === selCmpt.name + TOGGLE);
+          addClear(tIdx, 'false');
+        }
+      }
+
+      return signals;
+    }
+  };
+
+  const legendBindings = {
+    defined: selCmpt => {
+      const spec = selCmpt.resolve === 'global' && selCmpt.bind && isLegendBinding(selCmpt.bind);
+      const projLen = selCmpt.project.items.length === 1 && selCmpt.project.items[0].field !== SELECTION_ID;
+
+      if (spec && !projLen) {
+        warn(LEGEND_BINDINGS_MUST_HAVE_PROJECTION);
+      }
+
+      return spec && projLen;
+    },
+    parse: (model, selCmpt, selDef) => {
+      // Allow legend items to be toggleable by default even though direct manipulation is disabled.
+      const selDef_ = duplicate(selDef);
+      selDef_.select = vega.isString(selDef_.select) ? {
+        type: selDef_.select,
+        toggle: selCmpt.toggle
+      } : { ...selDef_.select,
+        toggle: selCmpt.toggle
+      };
+      disableDirectManipulation(selCmpt, selDef_);
+
+      if (vega.isObject(selDef.select) && (selDef.select.on || selDef.select.clear)) {
+        const legendFilter = 'event.item && indexof(event.item.mark.role, "legend") < 0';
+
+        for (const evt of selCmpt.events) {
+          var _evt$filter;
+
+          evt.filter = vega.array((_evt$filter = evt.filter) !== null && _evt$filter !== void 0 ? _evt$filter : []);
+
+          if (!evt.filter.includes(legendFilter)) {
+            evt.filter.push(legendFilter);
+          }
+        }
+      }
+
+      const evt = isLegendStreamBinding(selCmpt.bind) ? selCmpt.bind.legend : 'click';
+      const stream = vega.isString(evt) ? vega.parseSelector(evt, 'view') : vega.array(evt);
+      selCmpt.bind = {
+        legend: {
+          merge: stream
+        }
+      };
+    },
+    topLevelSignals: (model, selCmpt, signals) => {
+      const selName = selCmpt.name;
+      const stream = isLegendStreamBinding(selCmpt.bind) && selCmpt.bind.legend;
+
+      const markName = name => s => {
+        const ds = duplicate(s);
+        ds.markname = name;
+        return ds;
+      };
+
+      for (const proj of selCmpt.project.items) {
+        if (!proj.hasLegend) continue;
+        const prefix = "".concat(varName(proj.field), "_legend");
+        const sgName = "".concat(selName, "_").concat(prefix);
+        const hasSignal = signals.filter(s => s.name === sgName);
+
+        if (hasSignal.length === 0) {
+          const events = stream.merge.map(markName("".concat(prefix, "_symbols"))).concat(stream.merge.map(markName("".concat(prefix, "_labels")))).concat(stream.merge.map(markName("".concat(prefix, "_entries"))));
+          signals.unshift({
+            name: sgName,
+            ...(!selCmpt.init ? {
+              value: null
+            } : {}),
+            on: [// Legend entries do not store values, so we need to walk the scenegraph to the symbol datum.
+            {
+              events,
+              update: 'datum.value || item().items[0].items[0].datum.value',
+              force: true
+            }, {
+              events: stream.merge,
+              update: "!event.item || !datum ? null : ".concat(sgName),
+              force: true
+            }]
+          });
+        }
+      }
+
+      return signals;
+    },
+    signals: (model, selCmpt, signals) => {
+      const name = selCmpt.name;
+      const proj = selCmpt.project;
+      const tuple = signals.find(s => s.name === name + TUPLE);
+      const fields = name + TUPLE_FIELDS;
+      const values = proj.items.filter(p => p.hasLegend).map(p => varName("".concat(name, "_").concat(varName(p.field), "_legend")));
+      const valid = values.map(v => "".concat(v, " !== null")).join(' && ');
+      const update = "".concat(valid, " ? {fields: ").concat(fields, ", values: [").concat(values.join(', '), "]} : null");
+
+      if (selCmpt.events && values.length > 0) {
+        tuple.on.push({
+          events: values.map(signal => ({
+            signal
+          })),
+          update
+        });
+      } else if (values.length > 0) {
+        tuple.update = update;
+        delete tuple.value;
+        delete tuple.on;
+      }
+
+      const toggle = signals.find(s => s.name === name + TOGGLE);
+      const events = isLegendStreamBinding(selCmpt.bind) && selCmpt.bind.legend;
+
+      if (toggle) {
+        if (!selCmpt.events) toggle.on[0].events = events;else toggle.on.push({ ...toggle.on[0],
+          events
+        });
+      }
+
+      return signals;
+    }
+  };
+  function parseInteractiveLegend(model, channel, legendCmpt) {
+    var _model$fieldDef;
+
+    const field = (_model$fieldDef = model.fieldDef(channel)) === null || _model$fieldDef === void 0 ? void 0 : _model$fieldDef.field;
+
+    for (const selCmpt of vals((_model$component$sele = model.component.selection) !== null && _model$component$sele !== void 0 ? _model$component$sele : {})) {
+      var _model$component$sele, _selCmpt$project$hasF;
+
+      const proj = (_selCmpt$project$hasF = selCmpt.project.hasField[field]) !== null && _selCmpt$project$hasF !== void 0 ? _selCmpt$project$hasF : selCmpt.project.hasChannel[channel];
+
+      if (proj && legendBindings.defined(selCmpt)) {
+        var _legendCmpt$get;
+
+        const legendSelections = (_legendCmpt$get = legendCmpt.get('selections')) !== null && _legendCmpt$get !== void 0 ? _legendCmpt$get : [];
+        legendSelections.push(selCmpt.name);
+        legendCmpt.set('selections', legendSelections, false);
+        proj.hasLegend = true;
+      }
+    }
+  }
+
+  const ANCHOR$1 = '_translate_anchor';
+  const DELTA$1 = '_translate_delta';
+  const translate = {
+    defined: selCmpt => {
+      return selCmpt.type === 'interval' && selCmpt.translate;
+    },
+    signals: (model, selCmpt, signals) => {
+      const name = selCmpt.name;
+      const hasScales = scaleBindings.defined(selCmpt);
+      const anchor = name + ANCHOR$1;
+      const {
+        x,
+        y
+      } = selCmpt.project.hasChannel;
+      let events = vega.parseSelector(selCmpt.translate, 'scope');
+
+      if (!hasScales) {
+        events = events.map(e => (e.between[0].markname = name + BRUSH, e));
+      }
+
+      signals.push({
+        name: anchor,
+        value: {},
+        on: [{
+          events: events.map(e => e.between[0]),
+          update: '{x: x(unit), y: y(unit)' + (x !== undefined ? ", extent_x: ".concat(hasScales ? domain(model, X) : "slice(".concat(x.signals.visual, ")")) : '') + (y !== undefined ? ", extent_y: ".concat(hasScales ? domain(model, Y) : "slice(".concat(y.signals.visual, ")")) : '') + '}'
+        }]
+      }, {
+        name: name + DELTA$1,
+        value: {},
+        on: [{
+          events,
+          update: "{x: ".concat(anchor, ".x - x(unit), y: ").concat(anchor, ".y - y(unit)}")
+        }]
+      });
+
+      if (x !== undefined) {
+        onDelta$1(model, selCmpt, x, 'width', signals);
+      }
+
+      if (y !== undefined) {
+        onDelta$1(model, selCmpt, y, 'height', signals);
+      }
+
+      return signals;
+    }
+  };
+
+  function onDelta$1(model, selCmpt, proj, size, signals) {
+    var _scaleCmpt$get, _scaleCmpt$get2;
+
+    const name = selCmpt.name;
+    const anchor = name + ANCHOR$1;
+    const delta = name + DELTA$1;
+    const channel = proj.channel;
+    const hasScales = scaleBindings.defined(selCmpt);
+    const signal = signals.filter(s => s.name === proj.signals[hasScales ? 'data' : 'visual'])[0];
+    const sizeSg = model.getSizeSignalRef(size).signal;
+    const scaleCmpt = model.getScaleComponent(channel);
+    const scaleType = scaleCmpt.get('type');
+    const reversed = scaleCmpt.get('reverse'); // scale parsing sets this flag for fieldDef.sort
+
+    const sign = !hasScales ? '' : channel === X ? reversed ? '' : '-' : reversed ? '-' : '';
+    const extent = "".concat(anchor, ".extent_").concat(channel);
+    const offset = "".concat(sign).concat(delta, ".").concat(channel, " / ").concat(hasScales ? "".concat(sizeSg) : "span(".concat(extent, ")"));
+    const panFn = !hasScales ? 'panLinear' : scaleType === 'log' ? 'panLog' : scaleType === 'symlog' ? 'panSymlog' : scaleType === 'pow' ? 'panPow' : 'panLinear';
+    const arg = !hasScales ? '' : scaleType === 'pow' ? ", ".concat((_scaleCmpt$get = scaleCmpt.get('exponent')) !== null && _scaleCmpt$get !== void 0 ? _scaleCmpt$get : 1) : scaleType === 'symlog' ? ", ".concat((_scaleCmpt$get2 = scaleCmpt.get('constant')) !== null && _scaleCmpt$get2 !== void 0 ? _scaleCmpt$get2 : 1) : '';
+    const update = "".concat(panFn, "(").concat(extent, ", ").concat(offset).concat(arg, ")");
+    signal.on.push({
+      events: {
+        signal: delta
+      },
+      update: hasScales ? update : "clampRange(".concat(update, ", 0, ").concat(sizeSg, ")")
+    });
+  }
+
+  const ANCHOR = '_zoom_anchor';
+  const DELTA = '_zoom_delta';
+  const zoom = {
+    defined: selCmpt => {
+      return selCmpt.type === 'interval' && selCmpt.zoom;
+    },
+    signals: (model, selCmpt, signals) => {
+      const name = selCmpt.name;
+      const hasScales = scaleBindings.defined(selCmpt);
+      const delta = name + DELTA;
+      const {
+        x,
+        y
+      } = selCmpt.project.hasChannel;
+      const sx = vega.stringValue(model.scaleName(X));
+      const sy = vega.stringValue(model.scaleName(Y));
+      let events = vega.parseSelector(selCmpt.zoom, 'scope');
+
+      if (!hasScales) {
+        events = events.map(e => (e.markname = name + BRUSH, e));
+      }
+
+      signals.push({
+        name: name + ANCHOR,
+        on: [{
+          events,
+          update: !hasScales ? "{x: x(unit), y: y(unit)}" : '{' + [sx ? "x: invert(".concat(sx, ", x(unit))") : '', sy ? "y: invert(".concat(sy, ", y(unit))") : ''].filter(expr => !!expr).join(', ') + '}'
+        }]
+      }, {
+        name: delta,
+        on: [{
+          events,
+          force: true,
+          update: 'pow(1.001, event.deltaY * pow(16, event.deltaMode))'
+        }]
+      });
+
+      if (x !== undefined) {
+        onDelta(model, selCmpt, x, 'width', signals);
+      }
+
+      if (y !== undefined) {
+        onDelta(model, selCmpt, y, 'height', signals);
+      }
+
+      return signals;
+    }
+  };
+
+  function onDelta(model, selCmpt, proj, size, signals) {
+    var _scaleCmpt$get, _scaleCmpt$get2;
+
+    const name = selCmpt.name;
+    const channel = proj.channel;
+    const hasScales = scaleBindings.defined(selCmpt);
+    const signal = signals.filter(s => s.name === proj.signals[hasScales ? 'data' : 'visual'])[0];
+    const sizeSg = model.getSizeSignalRef(size).signal;
+    const scaleCmpt = model.getScaleComponent(channel);
+    const scaleType = scaleCmpt.get('type');
+    const base = hasScales ? domain(model, channel) : signal.name;
+    const delta = name + DELTA;
+    const anchor = "".concat(name).concat(ANCHOR, ".").concat(channel);
+    const zoomFn = !hasScales ? 'zoomLinear' : scaleType === 'log' ? 'zoomLog' : scaleType === 'symlog' ? 'zoomSymlog' : scaleType === 'pow' ? 'zoomPow' : 'zoomLinear';
+    const arg = !hasScales ? '' : scaleType === 'pow' ? ", ".concat((_scaleCmpt$get = scaleCmpt.get('exponent')) !== null && _scaleCmpt$get !== void 0 ? _scaleCmpt$get : 1) : scaleType === 'symlog' ? ", ".concat((_scaleCmpt$get2 = scaleCmpt.get('constant')) !== null && _scaleCmpt$get2 !== void 0 ? _scaleCmpt$get2 : 1) : '';
+    const update = "".concat(zoomFn, "(").concat(base, ", ").concat(anchor, ", ").concat(delta).concat(arg, ")");
+    signal.on.push({
+      events: {
+        signal: delta
+      },
+      update: hasScales ? update : "clampRange(".concat(update, ", 0, ").concat(sizeSg, ")")
+    });
+  }
+
+  const STORE = '_store';
+  const TUPLE = '_tuple';
+  const MODIFY = '_modify';
+  const VL_SELECTION_RESOLVE = 'vlSelectionResolve';
+  // Order matters for parsing and assembly.
+  const selectionCompilers = [point$1, interval, project, toggle, // Bindings may disable direct manipulation.
+  inputBindings, scaleBindings, legendBindings, clear, translate, zoom, nearest];
+
+  function getFacetModel(model) {
+    let parent = model.parent;
+
+    while (parent) {
+      if (isFacetModel(parent)) break;
+      parent = parent.parent;
+    }
+
+    return parent;
+  }
+
+  function unitName(model) {
+    let {
+      escape
+    } = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
+      escape: true
+    };
+    let name = escape ? vega.stringValue(model.name) : model.name;
+    const facetModel = getFacetModel(model);
+
+    if (facetModel) {
+      const {
+        facet
+      } = facetModel;
+
+      for (const channel of FACET_CHANNELS) {
+        if (facet[channel]) {
+          name += " + '__facet_".concat(channel, "_' + (facet[").concat(vega.stringValue(facetModel.vgField(channel)), "])");
+        }
+      }
+    }
+
+    return name;
+  }
+  function requiresSelectionId(model) {
+    var _model$component$sele;
+
+    return vals((_model$component$sele = model.component.selection) !== null && _model$component$sele !== void 0 ? _model$component$sele : {}).reduce((identifier, selCmpt) => {
+      return identifier || selCmpt.project.items.some(proj => proj.field === SELECTION_ID);
+    }, false);
+  } // Binding a point selection to query widgets or legends disables default direct manipulation interaction.
+  // A user can choose to re-enable it by explicitly specifying triggering input events.
+
+  function disableDirectManipulation(selCmpt, selDef) {
+    if (vega.isString(selDef.select) || !selDef.select.on) delete selCmpt.events;
+    if (vega.isString(selDef.select) || !selDef.select.clear) delete selCmpt.clear;
+    if (vega.isString(selDef.select) || !selDef.select.toggle) delete selCmpt.toggle;
+  }
+
+  function getName(node) {
+    const name = [];
+
+    if (node.type === 'Identifier') {
+      return [node.name];
+    }
+
+    if (node.type === 'Literal') {
+      return [node.value];
+    }
+
+    if (node.type === 'MemberExpression') {
+      name.push(...getName(node.object));
+      name.push(...getName(node.property));
+    }
+
+    return name;
+  }
+
+  function startsWithDatum(node) {
+    if (node.object.type === 'MemberExpression') {
+      return startsWithDatum(node.object);
+    }
+
+    return node.object.name === 'datum';
+  }
+
+  function getDependentFields(expression) {
+    const ast = vega.parseExpression(expression);
+    const dependents = new Set(); // visit is missing in types https://github.com/vega/vega/issues/3298
+
+    ast.visit(node => {
+      if (node.type === 'MemberExpression' && startsWithDatum(node)) {
+        dependents.add(getName(node).slice(1).join('.'));
+      }
+    });
+    return dependents;
+  }
+
+  class FilterNode extends DataFlowNode {
+    clone() {
+      return new FilterNode(null, this.model, duplicate(this.filter));
+    }
+
+    constructor(parent, model, filter) {
+      super(parent); // TODO: refactor this to not take a node and
+      // then add a static function makeFromOperand and make the constructor take only an expression
+
+      this.model = model;
+      this.filter = filter;
+
+      _defineProperty(this, "expr", void 0);
+
+      _defineProperty(this, "_dependentFields", void 0);
+
+      this.expr = expression(this.model, this.filter, this);
+      this._dependentFields = getDependentFields(this.expr);
+    }
+
+    dependentFields() {
+      return this._dependentFields;
+    }
+
+    producedFields() {
+      return new Set(); // filter does not produce any new fields
+    }
+
+    assemble() {
+      return {
+        type: 'filter',
+        expr: this.expr
+      };
+    }
+
+    hash() {
+      return "Filter ".concat(this.expr);
+    }
+
+  }
+
+  function parseUnitSelection(model, selDefs) {
+    const selCmpts = {};
+    const selectionConfig = model.config.selection;
+    if (!selDefs || !selDefs.length) return selCmpts;
+
+    for (const def of selDefs) {
+      const name = varName(def.name);
+      const selDef = def.select;
+      const type = vega.isString(selDef) ? selDef : selDef.type;
+      const defaults = vega.isObject(selDef) ? duplicate(selDef) : {
+        type
+      }; // Set default values from config if a property hasn't been specified,
+      // or if it is true. E.g., "translate": true should use the default
+      // event handlers for translate. However, true may be a valid value for
+      // a property (e.g., "nearest": true).
+
+      const cfg = selectionConfig[type];
+
+      for (const key in cfg) {
+        // Project transform applies its defaults.
+        if (key === 'fields' || key === 'encodings') {
+          continue;
+        }
+
+        if (key === 'mark') {
+          defaults[key] = { ...cfg[key],
+            ...defaults[key]
+          };
+        }
+
+        if (defaults[key] === undefined || defaults[key] === true) {
+          var _cfg$key;
+
+          defaults[key] = (_cfg$key = cfg[key]) !== null && _cfg$key !== void 0 ? _cfg$key : defaults[key];
+        }
+      }
+
+      const selCmpt = selCmpts[name] = { ...defaults,
+        name,
+        type,
+        init: def.value,
+        bind: def.bind,
+        events: vega.isString(defaults.on) ? vega.parseSelector(defaults.on, 'scope') : vega.array(duplicate(defaults.on))
+      };
+
+      for (const c of selectionCompilers) {
+        if (c.defined(selCmpt) && c.parse) {
+          c.parse(model, selCmpt, def);
+        }
+      }
+    }
+
+    return selCmpts;
+  }
+  function parseSelectionPredicate(model, pred, dfnode) {
+    let datum = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'datum';
+    const name = vega.isString(pred) ? pred : pred.param;
+    const vname = varName(name);
+    const store = vega.stringValue(vname + STORE);
+    let selCmpt;
+
+    try {
+      selCmpt = model.getSelectionComponent(vname, name);
+    } catch (e) {
+      // If a selection isn't found, treat as a variable parameter and coerce to boolean.
+      return "!!".concat(vname);
+    }
+
+    if (selCmpt.project.timeUnit) {
+      const child = dfnode !== null && dfnode !== void 0 ? dfnode : model.component.data.raw;
+      const tunode = selCmpt.project.timeUnit.clone();
+
+      if (child.parent) {
+        tunode.insertAsParentOf(child);
+      } else {
+        child.parent = tunode;
+      }
+    }
+
+    const test = "vlSelectionTest(".concat(store, ", ").concat(datum).concat(selCmpt.resolve === 'global' ? ')' : ", ".concat(vega.stringValue(selCmpt.resolve), ")"));
+    const length = "length(data(".concat(store, "))");
+    return pred.empty === false ? "".concat(length, " && ").concat(test) : "!".concat(length, " || ").concat(test);
+  }
+  function parseSelectionExtent(model, name, extent) {
+    const vname = varName(name);
+    const encoding = extent['encoding'];
+    let field = extent['field'];
+    let selCmpt;
+
+    try {
+      selCmpt = model.getSelectionComponent(vname, name);
+    } catch (e) {
+      // If a selection isn't found, treat it as a variable parameter.
+      return vname;
+    }
+
+    if (!encoding && !field) {
+      field = selCmpt.project.items[0].field;
+
+      if (selCmpt.project.items.length > 1) {
+        warn('A "field" or "encoding" must be specified when using a selection as a scale domain. ' + "Using \"field\": ".concat(vega.stringValue(field), "."));
+      }
+    } else if (encoding && !field) {
+      const encodings = selCmpt.project.items.filter(p => p.channel === encoding);
+
+      if (!encodings.length || encodings.length > 1) {
+        field = selCmpt.project.items[0].field;
+        warn((!encodings.length ? 'No ' : 'Multiple ') + "matching ".concat(vega.stringValue(encoding), " encoding found for selection ").concat(vega.stringValue(extent.param), ". ") + "Using \"field\": ".concat(vega.stringValue(field), "."));
+      } else {
+        field = encodings[0].field;
+      }
+    }
+
+    return "".concat(selCmpt.name, "[").concat(vega.stringValue(replacePathInField(field)), "]");
+  }
+  function materializeSelections(model, main) {
+    for (const [selection, selCmpt] of entries$1((_model$component$sele = model.component.selection) !== null && _model$component$sele !== void 0 ? _model$component$sele : {})) {
+      var _model$component$sele;
+
+      const lookupName = model.getName("lookup_".concat(selection));
+      model.component.data.outputNodes[lookupName] = selCmpt.materialized = new OutputNode(new FilterNode(main, model, {
+        param: selection
+      }), lookupName, DataSourceType.Lookup, model.component.data.outputNodeRefCounts);
+    }
+  }
+
+  /**
+   * Converts a predicate into an expression.
+   */
+  // model is only used for selection filters.
+
+  function expression(model, filterOp, node) {
+    return logicalExpr(filterOp, predicate => {
+      if (vega.isString(predicate)) {
+        return predicate;
+      } else if (isSelectionPredicate(predicate)) {
+        return parseSelectionPredicate(model, predicate, node);
+      } else {
+        // Filter Object
+        return fieldFilterExpression(predicate);
+      }
+    });
+  }
+
+  function assembleTitle(title, config) {
+    if (!title) {
+      return undefined;
+    }
+
+    if (vega.isArray(title) && !isText(title)) {
+      return title.map(fieldDef => defaultTitle(fieldDef, config)).join(', ');
+    }
+
+    return title;
+  }
+
+  function setAxisEncode(axis, part, vgProp, vgRef) {
+    var _axis$encode, _axis$encode2, _axis$encode2$part, _axis$encode$part, _axis$encode$part$upd;
+
+    (_axis$encode = axis.encode) !== null && _axis$encode !== void 0 ? _axis$encode : axis.encode = {};
+    (_axis$encode2$part = (_axis$encode2 = axis.encode)[part]) !== null && _axis$encode2$part !== void 0 ? _axis$encode2$part : _axis$encode2[part] = {};
+    (_axis$encode$part$upd = (_axis$encode$part = axis.encode[part]).update) !== null && _axis$encode$part$upd !== void 0 ? _axis$encode$part$upd : _axis$encode$part.update = {}; // TODO: remove as any after https://github.com/prisma/nexus-prisma/issues/291
+
+    axis.encode[part].update[vgProp] = vgRef;
+  }
+
+  function assembleAxis(axisCmpt, kind, config) {
+    let opt = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {
+      header: false
+    };
+    const {
+      disable,
+      orient,
+      scale,
+      labelExpr,
+      title,
+      zindex,
+      ...axis
+    } = axisCmpt.combine();
+
+    if (disable) {
+      return undefined;
+    }
+
+    for (const prop in axis) {
+      const propType = AXIS_PROPERTY_TYPE[prop];
+      const propValue = axis[prop];
+
+      if (propType && propType !== kind && propType !== 'both') {
+        // Remove properties that are not valid for this kind of axis
+        delete axis[prop];
+      } else if (isConditionalAxisValue(propValue)) {
+        // deal with conditional axis value
+        const {
+          condition,
+          ...valueOrSignalRef
+        } = propValue;
+        const conditions = vega.array(condition);
+        const propIndex = CONDITIONAL_AXIS_PROP_INDEX[prop];
+
+        if (propIndex) {
+          const {
+            vgProp,
+            part
+          } = propIndex; // If there is a corresponding Vega property for the channel,
+          // use Vega's custom axis encoding and delete the original axis property to avoid conflicts
+
+          const vgRef = [...conditions.map(c => {
+            const {
+              test,
+              ...valueOrSignalCRef
+            } = c;
+            return {
+              test: expression(null, test),
+              ...valueOrSignalCRef
+            };
+          }), valueOrSignalRef];
+          setAxisEncode(axis, part, vgProp, vgRef);
+          delete axis[prop];
+        } else if (propIndex === null) {
+          // If propIndex is null, this means we support conditional axis property by converting the condition to signal instead.
+          const signalRef = {
+            signal: conditions.map(c => {
+              const {
+                test,
+                ...valueOrSignalCRef
+              } = c;
+              return "".concat(expression(null, test), " ? ").concat(exprFromValueRefOrSignalRef(valueOrSignalCRef), " : ");
+            }).join('') + exprFromValueRefOrSignalRef(valueOrSignalRef)
+          };
+          axis[prop] = signalRef;
+        }
+      } else if (isSignalRef(propValue)) {
+        const propIndex = CONDITIONAL_AXIS_PROP_INDEX[prop];
+
+        if (propIndex) {
+          const {
+            vgProp,
+            part
+          } = propIndex;
+          setAxisEncode(axis, part, vgProp, propValue);
+          delete axis[prop];
+        } // else do nothing since the property already supports signal
+
+      } // Do not pass labelAlign/Baseline = null to Vega since it won't pass the schema
+      // Note that we need to use null so the default labelAlign is preserved.
+
+
+      if (contains(['labelAlign', 'labelBaseline'], prop) && axis[prop] === null) {
+        delete axis[prop];
+      }
+    }
+
+    if (kind === 'grid') {
+      if (!axis.grid) {
+        return undefined;
+      } // Remove unnecessary encode block
+
+
+      if (axis.encode) {
+        // Only need to keep encode block for grid
+        const {
+          grid
+        } = axis.encode;
+        axis.encode = { ...(grid ? {
+            grid
+          } : {})
+        };
+
+        if (isEmpty(axis.encode)) {
+          delete axis.encode;
+        }
+      }
+
+      return {
+        scale,
+        orient,
+        ...axis,
+        domain: false,
+        labels: false,
+        aria: false,
+        // always hide grid axis
+        // Always set min/maxExtent to 0 to ensure that `config.axis*.minExtent` and `config.axis*.maxExtent`
+        // would not affect gridAxis
+        maxExtent: 0,
+        minExtent: 0,
+        ticks: false,
+        zindex: getFirstDefined(zindex, 0) // put grid behind marks by default
+
+      };
+    } else {
+      // kind === 'main'
+      if (!opt.header && axisCmpt.mainExtracted) {
+        // if mainExtracted has been extracted to a separate facet
+        return undefined;
+      }
+
+      if (labelExpr !== undefined) {
+        var _axis$encode3, _axis$encode3$labels;
+
+        let expr = labelExpr;
+
+        if ((_axis$encode3 = axis.encode) !== null && _axis$encode3 !== void 0 && (_axis$encode3$labels = _axis$encode3.labels) !== null && _axis$encode3$labels !== void 0 && _axis$encode3$labels.update && isSignalRef(axis.encode.labels.update.text)) {
+          expr = replaceAll(labelExpr, 'datum.label', axis.encode.labels.update.text.signal);
+        }
+
+        setAxisEncode(axis, 'labels', 'text', {
+          signal: expr
+        });
+      }
+
+      if (axis.labelAlign === null) {
+        delete axis.labelAlign;
+      } // Remove unnecessary encode block
+
+
+      if (axis.encode) {
+        for (const part of AXIS_PARTS) {
+          if (!axisCmpt.hasAxisPart(part)) {
+            delete axis.encode[part];
+          }
+        }
+
+        if (isEmpty(axis.encode)) {
+          delete axis.encode;
+        }
+      }
+
+      const titleString = assembleTitle(title, config);
+      return {
+        scale,
+        orient,
+        grid: false,
+        ...(titleString ? {
+          title: titleString
+        } : {}),
+        ...axis,
+        ...(config.aria === false ? {
+          aria: false
+        } : {}),
+        zindex: getFirstDefined(zindex, 0) // put axis line above marks by default
+
+      };
+    }
+  }
+  /**
+   * Add axis signals so grid line works correctly
+   * (Fix https://github.com/vega/vega-lite/issues/4226)
+   */
+
+  function assembleAxisSignals(model) {
+    const {
+      axes
+    } = model.component;
+    const signals = [];
+
+    for (const channel of POSITION_SCALE_CHANNELS) {
+      if (axes[channel]) {
+        for (const axis of axes[channel]) {
+          if (!axis.get('disable') && !axis.get('gridScale')) {
+            // If there is x-axis but no y-scale for gridScale, need to set height/width so x-axis can draw the grid with the right height. Same for y-axis and width.
+            const sizeType = channel === 'x' ? 'height' : 'width';
+            const update = model.getSizeSignalRef(sizeType).signal;
+
+            if (sizeType !== update) {
+              signals.push({
+                name: sizeType,
+                update
+              });
+            }
+          }
+        }
+      }
+    }
+
+    return signals;
+  }
+  function assembleAxes(axisComponents, config) {
+    const {
+      x = [],
+      y = []
+    } = axisComponents;
+    return [...x.map(a => assembleAxis(a, 'grid', config)), ...y.map(a => assembleAxis(a, 'grid', config)), ...x.map(a => assembleAxis(a, 'main', config)), ...y.map(a => assembleAxis(a, 'main', config))].filter(a => a); // filter undefined
+  }
+
+  function getAxisConfigFromConfigTypes(configTypes, config, channel, orient) {
+    // TODO: add special casing to add conditional value based on orient signal
+    return Object.assign.apply(null, [{}, ...configTypes.map(configType => {
+      if (configType === 'axisOrient') {
+        const orient1 = channel === 'x' ? 'bottom' : 'left';
+        const orientConfig1 = config[channel === 'x' ? 'axisBottom' : 'axisLeft'] || {};
+        const orientConfig2 = config[channel === 'x' ? 'axisTop' : 'axisRight'] || {};
+        const props = new Set([...keys(orientConfig1), ...keys(orientConfig2)]);
+        const conditionalOrientAxisConfig = {};
+
+        for (const prop of props.values()) {
+          conditionalOrientAxisConfig[prop] = {
+            // orient is surely signal in this case
+            signal: "".concat(orient['signal'], " === \"").concat(orient1, "\" ? ").concat(signalOrStringValue(orientConfig1[prop]), " : ").concat(signalOrStringValue(orientConfig2[prop]))
+          };
+        }
+
+        return conditionalOrientAxisConfig;
+      }
+
+      return config[configType];
+    })]);
+  }
+
+  function getAxisConfigs(channel, scaleType, orient, config) {
+    const typeBasedConfigTypes = scaleType === 'band' ? ['axisDiscrete', 'axisBand'] : scaleType === 'point' ? ['axisDiscrete', 'axisPoint'] : isQuantitative(scaleType) ? ['axisQuantitative'] : scaleType === 'time' || scaleType === 'utc' ? ['axisTemporal'] : [];
+    const axisChannel = channel === 'x' ? 'axisX' : 'axisY';
+    const axisOrient = isSignalRef(orient) ? 'axisOrient' : "axis".concat(titleCase(orient)); // axisTop, axisBottom, ...
+
+    const vlOnlyConfigTypes = [// technically Vega does have axisBand, but if we make another separation here,
+    // it will further introduce complexity in the code
+    ...typeBasedConfigTypes, ...typeBasedConfigTypes.map(c => axisChannel + c.substr(4))];
+    const vgConfigTypes = ['axis', axisOrient, axisChannel];
+    return {
+      vlOnlyAxisConfig: getAxisConfigFromConfigTypes(vlOnlyConfigTypes, config, channel, orient),
+      vgAxisConfig: getAxisConfigFromConfigTypes(vgConfigTypes, config, channel, orient),
+      axisConfigStyle: getAxisConfigStyle([...vgConfigTypes, ...vlOnlyConfigTypes], config)
+    };
+  }
+  function getAxisConfigStyle(axisConfigTypes, config) {
+    const toMerge = [{}];
+
+    for (const configType of axisConfigTypes) {
+      var _config$configType;
+
+      // TODO: add special casing to add conditional value based on orient signal
+      let style = (_config$configType = config[configType]) === null || _config$configType === void 0 ? void 0 : _config$configType.style;
+
+      if (style) {
+        style = vega.array(style);
+
+        for (const s of style) {
+          toMerge.push(config.style[s]);
+        }
+      }
+    }
+
+    return Object.assign.apply(null, toMerge);
+  }
+  function getAxisConfig(property, styleConfigIndex, style) {
+    let axisConfigs = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
+    const styleConfig = getStyleConfig(property, style, styleConfigIndex);
+
+    if (styleConfig !== undefined) {
+      return {
+        configFrom: 'style',
+        configValue: styleConfig
+      };
+    }
+
+    for (const configFrom of ['vlOnlyAxisConfig', 'vgAxisConfig', 'axisConfigStyle']) {
+      var _axisConfigs$configFr;
+
+      if (((_axisConfigs$configFr = axisConfigs[configFrom]) === null || _axisConfigs$configFr === void 0 ? void 0 : _axisConfigs$configFr[property]) !== undefined) {
+        return {
+          configFrom,
+          configValue: axisConfigs[configFrom][property]
+        };
+      }
+    }
+
+    return {};
+  }
+
+  const axisRules = {
+    scale: _ref => {
+      let {
+        model,
+        channel
+      } = _ref;
+      return model.scaleName(channel);
+    },
+    format: _ref2 => {
+      let {
+        fieldOrDatumDef,
+        config,
+        axis
+      } = _ref2;
+      const {
+        format,
+        formatType
+      } = axis;
+      return guideFormat(fieldOrDatumDef, fieldOrDatumDef.type, format, formatType, config, true);
+    },
+    formatType: _ref3 => {
+      let {
+        axis,
+        fieldOrDatumDef,
+        scaleType
+      } = _ref3;
+      const {
+        formatType
+      } = axis;
+      return guideFormatType(formatType, fieldOrDatumDef, scaleType);
+    },
+    grid: _ref4 => {
+      var _axis$grid;
+
+      let {
+        fieldOrDatumDef,
+        axis,
+        scaleType
+      } = _ref4;
+      return (_axis$grid = axis.grid) !== null && _axis$grid !== void 0 ? _axis$grid : defaultGrid(scaleType, fieldOrDatumDef);
+    },
+    gridScale: _ref5 => {
+      let {
+        model,
+        channel
+      } = _ref5;
+      return gridScale(model, channel);
+    },
+    labelAlign: _ref6 => {
+      let {
+        axis,
+        labelAngle,
+        orient,
+        channel
+      } = _ref6;
+      return axis.labelAlign || defaultLabelAlign(labelAngle, orient, channel);
+    },
+    labelAngle: _ref7 => {
+      let {
+        labelAngle
+      } = _ref7;
+      return labelAngle;
+    },
+    // we already calculate this in parse
+    labelBaseline: _ref8 => {
+      let {
+        axis,
+        labelAngle,
+        orient,
+        channel
+      } = _ref8;
+      return axis.labelBaseline || defaultLabelBaseline(labelAngle, orient, channel);
+    },
+    labelFlush: _ref9 => {
+      var _axis$labelFlush;
+
+      let {
+        axis,
+        fieldOrDatumDef,
+        channel
+      } = _ref9;
+      return (_axis$labelFlush = axis.labelFlush) !== null && _axis$labelFlush !== void 0 ? _axis$labelFlush : defaultLabelFlush(fieldOrDatumDef.type, channel);
+    },
+    labelOverlap: _ref10 => {
+      var _axis$labelOverlap;
+
+      let {
+        axis,
+        fieldOrDatumDef,
+        scaleType
+      } = _ref10;
+      return (_axis$labelOverlap = axis.labelOverlap) !== null && _axis$labelOverlap !== void 0 ? _axis$labelOverlap : defaultLabelOverlap$1(fieldOrDatumDef.type, scaleType, isFieldDef(fieldOrDatumDef) && !!fieldOrDatumDef.timeUnit, isFieldDef(fieldOrDatumDef) ? fieldOrDatumDef.sort : undefined);
+    },
+    // we already calculate orient in parse
+    orient: _ref11 => {
+      let {
+        orient
+      } = _ref11;
+      return orient;
+    },
+    // Need to cast until Vega supports signal
+    tickCount: _ref12 => {
+      var _axis$tickCount;
+
+      let {
+        channel,
+        model,
+        axis,
+        fieldOrDatumDef,
+        scaleType
+      } = _ref12;
+      const sizeType = channel === 'x' ? 'width' : channel === 'y' ? 'height' : undefined;
+      const size = sizeType ? model.getSizeSignalRef(sizeType) : undefined;
+      return (_axis$tickCount = axis.tickCount) !== null && _axis$tickCount !== void 0 ? _axis$tickCount : defaultTickCount({
+        fieldOrDatumDef,
+        scaleType,
+        size,
+        values: axis.values
+      });
+    },
+    title: _ref13 => {
+      let {
+        axis,
+        model,
+        channel
+      } = _ref13;
+
+      if (axis.title !== undefined) {
+        return axis.title;
+      }
+
+      const fieldDefTitle = getFieldDefTitle(model, channel);
+
+      if (fieldDefTitle !== undefined) {
+        return fieldDefTitle;
+      }
+
+      const fieldDef = model.typedFieldDef(channel);
+      const channel2 = channel === 'x' ? 'x2' : 'y2';
+      const fieldDef2 = model.fieldDef(channel2); // If title not specified, store base parts of fieldDef (and fieldDef2 if exists)
+
+      return mergeTitleFieldDefs(fieldDef ? [toFieldDefBase(fieldDef)] : [], isFieldDef(fieldDef2) ? [toFieldDefBase(fieldDef2)] : []);
+    },
+    values: _ref14 => {
+      let {
+        axis,
+        fieldOrDatumDef
+      } = _ref14;
+      return values$1(axis, fieldOrDatumDef);
+    },
+    zindex: _ref15 => {
+      var _axis$zindex;
+
+      let {
+        axis,
+        fieldOrDatumDef,
+        mark
+      } = _ref15;
+      return (_axis$zindex = axis.zindex) !== null && _axis$zindex !== void 0 ? _axis$zindex : defaultZindex(mark, fieldOrDatumDef);
+    }
+  }; // TODO: we need to refactor this method after we take care of config refactoring
+
+  /**
+   * Default rules for whether to show a grid should be shown for a channel.
+   * If `grid` is unspecified, the default value is `true` for ordinal scales that are not binned
+   */
+
+  function defaultGrid(scaleType, fieldDef) {
+    return !hasDiscreteDomain(scaleType) && isFieldDef(fieldDef) && !isBinning(fieldDef === null || fieldDef === void 0 ? void 0 : fieldDef.bin) && !isBinned(fieldDef === null || fieldDef === void 0 ? void 0 : fieldDef.bin);
+  }
+  function gridScale(model, channel) {
+    const gridChannel = channel === 'x' ? 'y' : 'x';
+
+    if (model.getScaleComponent(gridChannel)) {
+      return model.scaleName(gridChannel);
+    }
+
+    return undefined;
+  }
+  function getLabelAngle(fieldOrDatumDef, axis, channel, styleConfig, axisConfigs) {
+    const labelAngle = axis === null || axis === void 0 ? void 0 : axis.labelAngle; // try axis value
+
+    if (labelAngle !== undefined) {
+      return isSignalRef(labelAngle) ? labelAngle : normalizeAngle(labelAngle);
+    } else {
+      // try axis config value
+      const {
+        configValue: angle
+      } = getAxisConfig('labelAngle', styleConfig, axis === null || axis === void 0 ? void 0 : axis.style, axisConfigs);
+
+      if (angle !== undefined) {
+        return normalizeAngle(angle);
+      } else {
+        // get default value
+        if (channel === X && contains([NOMINAL, ORDINAL], fieldOrDatumDef.type) && !(isFieldDef(fieldOrDatumDef) && fieldOrDatumDef.timeUnit)) {
+          return 270;
+        } // no default
+
+
+        return undefined;
+      }
+    }
+  }
+  function normalizeAngleExpr(angle) {
+    return "(((".concat(angle.signal, " % 360) + 360) % 360)");
+  }
+  function defaultLabelBaseline(angle, orient, channel, alwaysIncludeMiddle) {
+    if (angle !== undefined) {
+      if (channel === 'x') {
+        if (isSignalRef(angle)) {
+          const a = normalizeAngleExpr(angle);
+          const orientIsTop = isSignalRef(orient) ? "(".concat(orient.signal, " === \"top\")") : orient === 'top';
+          return {
+            signal: "(45 < ".concat(a, " && ").concat(a, " < 135) || (225 < ").concat(a, " && ").concat(a, " < 315) ? \"middle\" :") + "(".concat(a, " <= 45 || 315 <= ").concat(a, ") === ").concat(orientIsTop, " ? \"bottom\" : \"top\"")
+          };
+        }
+
+        if (45 < angle && angle < 135 || 225 < angle && angle < 315) {
+          return 'middle';
+        }
+
+        if (isSignalRef(orient)) {
+          const op = angle <= 45 || 315 <= angle ? '===' : '!==';
+          return {
+            signal: "".concat(orient.signal, " ").concat(op, " \"top\" ? \"bottom\" : \"top\"")
+          };
+        }
+
+        return (angle <= 45 || 315 <= angle) === (orient === 'top') ? 'bottom' : 'top';
+      } else {
+        if (isSignalRef(angle)) {
+          const a = normalizeAngleExpr(angle);
+          const orientIsLeft = isSignalRef(orient) ? "(".concat(orient.signal, " === \"left\")") : orient === 'left';
+          const middle = alwaysIncludeMiddle ? '"middle"' : 'null';
+          return {
+            signal: "".concat(a, " <= 45 || 315 <= ").concat(a, " || (135 <= ").concat(a, " && ").concat(a, " <= 225) ? ").concat(middle, " : (45 <= ").concat(a, " && ").concat(a, " <= 135) === ").concat(orientIsLeft, " ? \"top\" : \"bottom\"")
+          };
+        }
+
+        if (angle <= 45 || 315 <= angle || 135 <= angle && angle <= 225) {
+          return alwaysIncludeMiddle ? 'middle' : null;
+        }
+
+        if (isSignalRef(orient)) {
+          const op = 45 <= angle && angle <= 135 ? '===' : '!==';
+          return {
+            signal: "".concat(orient.signal, " ").concat(op, " \"left\" ? \"top\" : \"bottom\"")
+          };
+        }
+
+        return (45 <= angle && angle <= 135) === (orient === 'left') ? 'top' : 'bottom';
+      }
+    }
+
+    return undefined;
+  }
+  function defaultLabelAlign(angle, orient, channel) {
+    if (angle === undefined) {
+      return undefined;
+    }
+
+    const isX = channel === 'x';
+    const startAngle = isX ? 0 : 90;
+    const mainOrient = isX ? 'bottom' : 'left';
+
+    if (isSignalRef(angle)) {
+      const a = normalizeAngleExpr(angle);
+      const orientIsMain = isSignalRef(orient) ? "(".concat(orient.signal, " === \"").concat(mainOrient, "\")") : orient === mainOrient;
+      return {
+        signal: "(".concat(startAngle ? "(".concat(a, " + 90)") : a, " % 180 === 0) ? ").concat(isX ? null : '"center"', " :") + "(".concat(startAngle, " < ").concat(a, " && ").concat(a, " < ").concat(180 + startAngle, ") === ").concat(orientIsMain, " ? \"left\" : \"right\"")
+      };
+    }
+
+    if ((angle + startAngle) % 180 === 0) {
+      // For bottom, use default label align so label flush still works
+      return isX ? null : 'center';
+    }
+
+    if (isSignalRef(orient)) {
+      const op = startAngle < angle && angle < 180 + startAngle ? '===' : '!==';
+      const orientIsMain = "".concat(orient.signal, " ").concat(op, " \"").concat(mainOrient, "\"");
+      return {
+        signal: "".concat(orientIsMain, " ? \"left\" : \"right\"")
+      };
+    }
+
+    if ((startAngle < angle && angle < 180 + startAngle) === (orient === mainOrient)) {
+      return 'left';
+    }
+
+    return 'right';
+  }
+  function defaultLabelFlush(type, channel) {
+    if (channel === 'x' && contains(['quantitative', 'temporal'], type)) {
+      return true;
+    }
+
+    return undefined;
+  }
+  function defaultLabelOverlap$1(type, scaleType, hasTimeUnit, sort) {
+    // do not prevent overlap for nominal data because there is no way to infer what the missing labels are
+    if (hasTimeUnit && !vega.isObject(sort) || type !== 'nominal' && type !== 'ordinal') {
+      if (scaleType === 'log' || scaleType === 'symlog') {
+        return 'greedy';
+      }
+
+      return true;
+    }
+
+    return undefined;
+  }
+  function defaultOrient(channel) {
+    return channel === 'x' ? 'bottom' : 'left';
+  }
+  function defaultTickCount(_ref16) {
+    let {
+      fieldOrDatumDef,
+      scaleType,
+      size,
+      values: vals
+    } = _ref16;
+
+    if (!vals && !hasDiscreteDomain(scaleType) && scaleType !== 'log') {
+      if (isFieldDef(fieldOrDatumDef)) {
+        var _normalizeTimeUnit;
+
+        if (isBinning(fieldOrDatumDef.bin)) {
+          // for binned data, we don't want more ticks than maxbins
+          return {
+            signal: "ceil(".concat(size.signal, "/10)")
+          };
+        }
+
+        if (fieldOrDatumDef.timeUnit && contains(['month', 'hours', 'day', 'quarter'], (_normalizeTimeUnit = normalizeTimeUnit(fieldOrDatumDef.timeUnit)) === null || _normalizeTimeUnit === void 0 ? void 0 : _normalizeTimeUnit.unit)) {
+          return undefined;
+        }
+      }
+
+      return {
+        signal: "ceil(".concat(size.signal, "/40)")
+      };
+    }
+
+    return undefined;
+  }
+  function getFieldDefTitle(model, channel) {
+    const channel2 = channel === 'x' ? 'x2' : 'y2';
+    const fieldDef = model.fieldDef(channel);
+    const fieldDef2 = model.fieldDef(channel2);
+    const title1 = fieldDef ? fieldDef.title : undefined;
+    const title2 = fieldDef2 ? fieldDef2.title : undefined;
+
+    if (title1 && title2) {
+      return mergeTitle(title1, title2);
+    } else if (title1) {
+      return title1;
+    } else if (title2) {
+      return title2;
+    } else if (title1 !== undefined) {
+      // falsy value to disable config
+      return title1;
+    } else if (title2 !== undefined) {
+      // falsy value to disable config
+      return title2;
+    }
+
+    return undefined;
+  }
+  function values$1(axis, fieldOrDatumDef) {
+    const vals = axis.values;
+
+    if (vega.isArray(vals)) {
+      return valueArray(fieldOrDatumDef, vals);
+    } else if (isSignalRef(vals)) {
+      return vals;
+    }
+
+    return undefined;
+  }
+  function defaultZindex(mark, fieldDef) {
+    if (mark === 'rect' && isDiscrete(fieldDef)) {
+      return 1;
+    }
+
+    return 0;
+  }
+
+  class CalculateNode extends DataFlowNode {
+    clone() {
+      return new CalculateNode(null, duplicate(this.transform));
+    }
+
+    constructor(parent, transform) {
+      super(parent);
+      this.transform = transform;
+
+      _defineProperty(this, "_dependentFields", void 0);
+
+      this._dependentFields = getDependentFields(this.transform.calculate);
+    }
+
+    static parseAllForSortIndex(parent, model) {
+      // get all the encoding with sort fields from model
+      model.forEachFieldDef((fieldDef, channel) => {
+        if (!isScaleFieldDef(fieldDef)) {
+          return;
+        }
+
+        if (isSortArray(fieldDef.sort)) {
+          const {
+            field,
+            timeUnit
+          } = fieldDef;
+          const sort = fieldDef.sort; // generate `datum["a"] === val0 ? 0 : datum["a"] === val1 ? 1 : ... : n` via FieldEqualPredicate
+
+          const calculate = sort.map((sortValue, i) => {
+            return "".concat(fieldFilterExpression({
+              field,
+              timeUnit,
+              equal: sortValue
+            }), " ? ").concat(i, " : ");
+          }).join('') + sort.length;
+          parent = new CalculateNode(parent, {
+            calculate,
+            as: sortArrayIndexField(fieldDef, channel, {
+              forAs: true
+            })
+          });
+        }
+      });
+      return parent;
+    }
+
+    producedFields() {
+      return new Set([this.transform.as]);
+    }
+
+    dependentFields() {
+      return this._dependentFields;
+    }
+
+    assemble() {
+      return {
+        type: 'formula',
+        expr: this.transform.calculate,
+        as: this.transform.as
+      };
+    }
+
+    hash() {
+      return "Calculate ".concat(hash(this.transform));
+    }
+
+  }
+  function sortArrayIndexField(fieldDef, channel, opt) {
+    return vgField(fieldDef, {
+      prefix: channel,
+      suffix: 'sort_index',
+      ...(opt !== null && opt !== void 0 ? opt : {})
+    });
+  }
+
+  /**
+   * Get header channel, which can be different from facet channel when orient is specified or when the facet channel is facet.
+   */
+  function getHeaderChannel(channel, orient) {
+    if (contains(['top', 'bottom'], orient)) {
+      return 'column';
+    } else if (contains(['left', 'right'], orient)) {
+      return 'row';
+    }
+
+    return channel === 'row' ? 'row' : 'column';
+  }
+  function getHeaderProperty(prop, header, config, channel) {
+    const headerSpecificConfig = channel === 'row' ? config.headerRow : channel === 'column' ? config.headerColumn : config.headerFacet;
+    return getFirstDefined((header || {})[prop], headerSpecificConfig[prop], config.header[prop]);
+  }
+  function getHeaderProperties(properties, header, config, channel) {
+    const props = {};
+
+    for (const prop of properties) {
+      const value = getHeaderProperty(prop, header || {}, config, channel);
+
+      if (value !== undefined) {
+        props[prop] = value;
+      }
+    }
+
+    return props;
+  }
+
+  /**
+   * Utility for generating row / column headers
+   */
+  const HEADER_CHANNELS = ['row', 'column'];
+  const HEADER_TYPES = ['header', 'footer'];
+
+  /**
+   * Utility for generating row / column headers
+   */
+
+  function assembleTitleGroup(model, channel) {
+    const title = model.component.layoutHeaders[channel].title;
+    const config = model.config ? model.config : undefined;
+    const facetFieldDef = model.component.layoutHeaders[channel].facetFieldDef ? model.component.layoutHeaders[channel].facetFieldDef : undefined;
+    const {
+      titleAnchor,
+      titleAngle: ta,
+      titleOrient
+    } = getHeaderProperties(['titleAnchor', 'titleAngle', 'titleOrient'], facetFieldDef.header, config, channel);
+    const headerChannel = getHeaderChannel(channel, titleOrient);
+    const titleAngle = normalizeAngle(ta);
+    return {
+      name: "".concat(channel, "-title"),
+      type: 'group',
+      role: "".concat(headerChannel, "-title"),
+      title: {
+        text: title,
+        ...(channel === 'row' ? {
+          orient: 'left'
+        } : {}),
+        style: 'guide-title',
+        ...defaultHeaderGuideBaseline(titleAngle, headerChannel),
+        ...defaultHeaderGuideAlign(headerChannel, titleAngle, titleAnchor),
+        ...assembleHeaderProperties(config, facetFieldDef, channel, HEADER_TITLE_PROPERTIES, HEADER_TITLE_PROPERTIES_MAP)
+      }
+    };
+  }
+  function defaultHeaderGuideAlign(headerChannel, angle) {
+    let anchor = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'middle';
+
+    switch (anchor) {
+      case 'start':
+        return {
+          align: 'left'
+        };
+
+      case 'end':
+        return {
+          align: 'right'
+        };
+    }
+
+    const align = defaultLabelAlign(angle, headerChannel === 'row' ? 'left' : 'top', headerChannel === 'row' ? 'y' : 'x');
+    return align ? {
+      align
+    } : {};
+  }
+  function defaultHeaderGuideBaseline(angle, channel) {
+    const baseline = defaultLabelBaseline(angle, channel === 'row' ? 'left' : 'top', channel === 'row' ? 'y' : 'x', true);
+    return baseline ? {
+      baseline
+    } : {};
+  }
+  function assembleHeaderGroups(model, channel) {
+    const layoutHeader = model.component.layoutHeaders[channel];
+    const groups = [];
+
+    for (const headerType of HEADER_TYPES) {
+      if (layoutHeader[headerType]) {
+        for (const headerComponent of layoutHeader[headerType]) {
+          const group = assembleHeaderGroup(model, channel, headerType, layoutHeader, headerComponent);
+
+          if (group != null) {
+            groups.push(group);
+          }
+        }
+      }
+    }
+
+    return groups;
+  }
+
+  function getSort$1(facetFieldDef, channel) {
+    const {
+      sort
+    } = facetFieldDef;
+
+    if (isSortField(sort)) {
+      var _sort$order;
+
+      return {
+        field: vgField(sort, {
+          expr: 'datum'
+        }),
+        order: (_sort$order = sort.order) !== null && _sort$order !== void 0 ? _sort$order : 'ascending'
+      };
+    } else if (vega.isArray(sort)) {
+      return {
+        field: sortArrayIndexField(facetFieldDef, channel, {
+          expr: 'datum'
+        }),
+        order: 'ascending'
+      };
+    } else {
+      return {
+        field: vgField(facetFieldDef, {
+          expr: 'datum'
+        }),
+        order: sort !== null && sort !== void 0 ? sort : 'ascending'
+      };
+    }
+  }
+
+  function assembleLabelTitle(facetFieldDef, channel, config) {
+    const {
+      format,
+      formatType,
+      labelAngle,
+      labelAnchor,
+      labelOrient,
+      labelExpr
+    } = getHeaderProperties(['format', 'formatType', 'labelAngle', 'labelAnchor', 'labelOrient', 'labelExpr'], facetFieldDef.header, config, channel);
+    const titleTextExpr = formatSignalRef({
+      fieldOrDatumDef: facetFieldDef,
+      format,
+      formatType,
+      expr: 'parent',
+      config
+    }).signal;
+    const headerChannel = getHeaderChannel(channel, labelOrient);
+    return {
+      text: {
+        signal: labelExpr ? replaceAll(replaceAll(labelExpr, 'datum.label', titleTextExpr), 'datum.value', vgField(facetFieldDef, {
+          expr: 'parent'
+        })) : titleTextExpr
+      },
+      ...(channel === 'row' ? {
+        orient: 'left'
+      } : {}),
+      style: 'guide-label',
+      frame: 'group',
+      ...defaultHeaderGuideBaseline(labelAngle, headerChannel),
+      ...defaultHeaderGuideAlign(headerChannel, labelAngle, labelAnchor),
+      ...assembleHeaderProperties(config, facetFieldDef, channel, HEADER_LABEL_PROPERTIES, HEADER_LABEL_PROPERTIES_MAP)
+    };
+  }
+  function assembleHeaderGroup(model, channel, headerType, layoutHeader, headerComponent) {
+    if (headerComponent) {
+      let title = null;
+      const {
+        facetFieldDef
+      } = layoutHeader;
+      const config = model.config ? model.config : undefined;
+
+      if (facetFieldDef && headerComponent.labels) {
+        const {
+          labelOrient
+        } = getHeaderProperties(['labelOrient'], facetFieldDef.header, config, channel); // Include label title in the header if orient aligns with the channel
+
+        if (channel === 'row' && !contains(['top', 'bottom'], labelOrient) || channel === 'column' && !contains(['left', 'right'], labelOrient)) {
+          title = assembleLabelTitle(facetFieldDef, channel, config);
+        }
+      }
+
+      const isFacetWithoutRowCol = isFacetModel(model) && !isFacetMapping(model.facet);
+      const axes = headerComponent.axes;
+      const hasAxes = (axes === null || axes === void 0 ? void 0 : axes.length) > 0;
+
+      if (title || hasAxes) {
+        const sizeChannel = channel === 'row' ? 'height' : 'width';
+        return {
+          name: model.getName("".concat(channel, "_").concat(headerType)),
+          type: 'group',
+          role: "".concat(channel, "-").concat(headerType),
+          ...(layoutHeader.facetFieldDef ? {
+            from: {
+              data: model.getName("".concat(channel, "_domain"))
+            },
+            sort: getSort$1(facetFieldDef, channel)
+          } : {}),
+          ...(hasAxes && isFacetWithoutRowCol ? {
+            from: {
+              data: model.getName("facet_domain_".concat(channel))
+            }
+          } : {}),
+          ...(title ? {
+            title
+          } : {}),
+          ...(headerComponent.sizeSignal ? {
+            encode: {
+              update: {
+                [sizeChannel]: headerComponent.sizeSignal
+              }
+            }
+          } : {}),
+          ...(hasAxes ? {
+            axes
+          } : {})
+        };
+      }
+    }
+
+    return null;
+  }
+  const LAYOUT_TITLE_BAND = {
+    column: {
+      start: 0,
+      end: 1
+    },
+    row: {
+      start: 1,
+      end: 0
+    }
+  };
+  function getLayoutTitleBand(titleAnchor, headerChannel) {
+    return LAYOUT_TITLE_BAND[headerChannel][titleAnchor];
+  }
+  function assembleLayoutTitleBand(headerComponentIndex, config) {
+    const titleBand = {};
+
+    for (const channel of FACET_CHANNELS) {
+      const headerComponent = headerComponentIndex[channel];
+
+      if (headerComponent !== null && headerComponent !== void 0 && headerComponent.facetFieldDef) {
+        const {
+          titleAnchor,
+          titleOrient
+        } = getHeaderProperties(['titleAnchor', 'titleOrient'], headerComponent.facetFieldDef.header, config, channel);
+        const headerChannel = getHeaderChannel(channel, titleOrient);
+        const band = getLayoutTitleBand(titleAnchor, headerChannel);
+
+        if (band !== undefined) {
+          titleBand[headerChannel] = band;
+        }
+      }
+    }
+
+    return isEmpty(titleBand) ? undefined : titleBand;
+  }
+  function assembleHeaderProperties(config, facetFieldDef, channel, properties, propertiesMap) {
+    const props = {};
+
+    for (const prop of properties) {
+      if (!propertiesMap[prop]) {
+        continue;
+      }
+
+      const value = getHeaderProperty(prop, facetFieldDef === null || facetFieldDef === void 0 ? void 0 : facetFieldDef.header, config, channel);
+
+      if (value !== undefined) {
+        props[propertiesMap[prop]] = value;
+      }
+    }
+
+    return props;
+  }
+
+  function assembleLayoutSignals(model) {
+    return [...sizeSignals(model, 'width'), ...sizeSignals(model, 'height'), ...sizeSignals(model, 'childWidth'), ...sizeSignals(model, 'childHeight')];
+  }
+  function sizeSignals(model, sizeType) {
+    const channel = sizeType === 'width' ? 'x' : 'y';
+    const size = model.component.layoutSize.get(sizeType);
+
+    if (!size || size === 'merged') {
+      return [];
+    } // Read size signal name from name map, just in case it is the top-level size signal that got renamed.
+
+
+    const name = model.getSizeSignalRef(sizeType).signal;
+
+    if (size === 'step') {
+      const scaleComponent = model.getScaleComponent(channel);
+
+      if (scaleComponent) {
+        const type = scaleComponent.get('type');
+        const range = scaleComponent.get('range');
+
+        if (hasDiscreteDomain(type) && isVgRangeStep(range)) {
+          const scaleName = model.scaleName(channel);
+
+          if (isFacetModel(model.parent)) {
+            // If parent is facet and this is an independent scale, return only signal signal
+            // as the width/height will be calculated using the cardinality from
+            // facet's aggregate rather than reading from scale domain
+            const parentResolve = model.parent.component.resolve;
+
+            if (parentResolve.scale[channel] === 'independent') {
+              return [stepSignal(scaleName, range)];
+            }
+          }
+
+          return [stepSignal(scaleName, range), {
+            name,
+            update: sizeExpr(scaleName, scaleComponent, "domain('".concat(scaleName, "').length"))
+          }];
+        }
+      }
+      /* istanbul ignore next: Condition should not happen -- only for warning in development. */
+
+
+      throw new Error('layout size is step although width/height is not step.');
+    } else if (size == 'container') {
+      const isWidth = name.endsWith('width');
+      const expr = isWidth ? 'containerSize()[0]' : 'containerSize()[1]';
+      const defaultValue = getViewConfigContinuousSize(model.config.view, isWidth ? 'width' : 'height');
+      const safeExpr = "isFinite(".concat(expr, ") ? ").concat(expr, " : ").concat(defaultValue);
+      return [{
+        name,
+        init: safeExpr,
+        on: [{
+          update: safeExpr,
+          events: 'window:resize'
+        }]
+      }];
+    } else {
+      return [{
+        name,
+        value: size
+      }];
+    }
+  }
+
+  function stepSignal(scaleName, range) {
+    const name = "".concat(scaleName, "_step");
+
+    if (isSignalRef(range.step)) {
+      return {
+        name,
+        update: range.step.signal
+      };
+    } else {
+      return {
+        name,
+        value: range.step
+      };
+    }
+  }
+
+  function sizeExpr(scaleName, scaleComponent, cardinality) {
+    const type = scaleComponent.get('type');
+    const padding = scaleComponent.get('padding');
+    const paddingOuter = getFirstDefined(scaleComponent.get('paddingOuter'), padding);
+    let paddingInner = scaleComponent.get('paddingInner');
+    paddingInner = type === 'band' ? // only band has real paddingInner
+    paddingInner !== undefined ? paddingInner : padding : // For point, as calculated in https://github.com/vega/vega-scale/blob/master/src/band.js#L128,
+    // it's equivalent to have paddingInner = 1 since there is only n-1 steps between n points.
+    1;
+    return "bandspace(".concat(cardinality, ", ").concat(signalOrStringValue(paddingInner), ", ").concat(signalOrStringValue(paddingOuter), ") * ").concat(scaleName, "_step");
+  }
+
+  function getSizeTypeFromLayoutSizeType(layoutSizeType) {
+    return layoutSizeType === 'childWidth' ? 'width' : layoutSizeType === 'childHeight' ? 'height' : layoutSizeType;
+  }
+
+  function guideEncodeEntry(encoding, model) {
+    return keys(encoding).reduce((encode, channel) => {
+      const valueDef = encoding[channel];
+      return { ...encode,
+        ...wrapCondition(model, valueDef, channel, def => signalOrValueRef(def.value))
+      };
+    }, {});
+  }
+
+  function defaultScaleResolve(channel, model) {
+    if (isFacetModel(model)) {
+      return channel === 'theta' ? 'independent' : 'shared';
+    } else if (isLayerModel(model)) {
+      return 'shared';
+    } else if (isConcatModel(model)) {
+      return isXorY(channel) || channel === 'theta' || channel === 'radius' ? 'independent' : 'shared';
+    }
+    /* istanbul ignore next: should never reach here. */
+
+
+    throw new Error('invalid model type for resolve');
+  }
+  function parseGuideResolve(resolve, channel) {
+    const channelScaleResolve = resolve.scale[channel];
+    const guide = isXorY(channel) ? 'axis' : 'legend';
+
+    if (channelScaleResolve === 'independent') {
+      if (resolve[guide][channel] === 'shared') {
+        warn(independentScaleMeansIndependentGuide(channel));
+      }
+
+      return 'independent';
+    }
+
+    return resolve[guide][channel] || 'shared';
+  }
+
+  const LEGEND_COMPONENT_PROPERTY_INDEX = { ...COMMON_LEGEND_PROPERTY_INDEX,
+    disable: 1,
+    labelExpr: 1,
+    selections: 1,
+    // channel scales
+    opacity: 1,
+    shape: 1,
+    stroke: 1,
+    fill: 1,
+    size: 1,
+    strokeWidth: 1,
+    strokeDash: 1,
+    // encode
+    encode: 1
+  };
+  const LEGEND_COMPONENT_PROPERTIES = keys(LEGEND_COMPONENT_PROPERTY_INDEX);
+  class LegendComponent extends Split {}
+
+  const legendEncodeRules = {
+    symbols,
+    gradient,
+    labels: labels$1,
+    entries
+  };
+  function symbols(symbolsSpec, _ref) {
+    var _legendCmpt$get, _legendCmpt$get2, _legendCmpt$get3, _getMaxValue;
+
+    let {
+      fieldOrDatumDef,
+      model,
+      channel,
+      legendCmpt,
+      legendType
+    } = _ref;
+
+    if (legendType !== 'symbol') {
+      return undefined;
+    }
+
+    const {
+      markDef,
+      encoding,
+      config,
+      mark
+    } = model;
+    const filled = markDef.filled && mark !== 'trail';
+    let out = { ...applyMarkConfig({}, model, FILL_STROKE_CONFIG),
+      ...color(model, {
+        filled
+      })
+    }; // FIXME: remove this when VgEncodeEntry is compatible with SymbolEncodeEntry
+
+    const symbolOpacity = (_legendCmpt$get = legendCmpt.get('symbolOpacity')) !== null && _legendCmpt$get !== void 0 ? _legendCmpt$get : config.legend.symbolOpacity;
+    const symbolFillColor = (_legendCmpt$get2 = legendCmpt.get('symbolFillColor')) !== null && _legendCmpt$get2 !== void 0 ? _legendCmpt$get2 : config.legend.symbolFillColor;
+    const symbolStrokeColor = (_legendCmpt$get3 = legendCmpt.get('symbolStrokeColor')) !== null && _legendCmpt$get3 !== void 0 ? _legendCmpt$get3 : config.legend.symbolStrokeColor;
+    const opacity = symbolOpacity === undefined ? (_getMaxValue = getMaxValue(encoding.opacity)) !== null && _getMaxValue !== void 0 ? _getMaxValue : markDef.opacity : undefined;
+
+    if (out.fill) {
+      // for fill legend, we don't want any fill in symbol
+      if (channel === 'fill' || filled && channel === COLOR) {
+        delete out.fill;
+      } else {
+        if (out.fill['field']) {
+          // For others, set fill to some opaque value (or nothing if a color is already set)
+          if (symbolFillColor) {
+            delete out.fill;
+          } else {
+            var _config$legend$symbol;
+
+            out.fill = signalOrValueRef((_config$legend$symbol = config.legend.symbolBaseFillColor) !== null && _config$legend$symbol !== void 0 ? _config$legend$symbol : 'black');
+            out.fillOpacity = signalOrValueRef(opacity !== null && opacity !== void 0 ? opacity : 1);
+          }
+        } else if (vega.isArray(out.fill)) {
+          var _ref2, _getFirstConditionVal, _encoding$fill;
+
+          const fill = (_ref2 = (_getFirstConditionVal = getFirstConditionValue((_encoding$fill = encoding.fill) !== null && _encoding$fill !== void 0 ? _encoding$fill : encoding.color)) !== null && _getFirstConditionVal !== void 0 ? _getFirstConditionVal : markDef.fill) !== null && _ref2 !== void 0 ? _ref2 : filled && markDef.color;
+
+          if (fill) {
+            out.fill = signalOrValueRef(fill);
+          }
+        }
+      }
+    }
+
+    if (out.stroke) {
+      if (channel === 'stroke' || !filled && channel === COLOR) {
+        delete out.stroke;
+      } else {
+        if (out.stroke['field'] || symbolStrokeColor) {
+          // For others, remove stroke field
+          delete out.stroke;
+        } else if (vega.isArray(out.stroke)) {
+          const stroke = getFirstDefined(getFirstConditionValue(encoding.stroke || encoding.color), markDef.stroke, filled ? markDef.color : undefined);
+
+          if (stroke) {
+            out.stroke = {
+              value: stroke
+            };
+          }
+        }
+      }
+    }
+
+    if (channel !== OPACITY) {
+      const condition = isFieldDef(fieldOrDatumDef) && selectedCondition(model, legendCmpt, fieldOrDatumDef);
+
+      if (condition) {
+        out.opacity = [{
+          test: condition,
+          ...signalOrValueRef(opacity !== null && opacity !== void 0 ? opacity : 1)
+        }, signalOrValueRef(config.legend.unselectedOpacity)];
+      } else if (opacity) {
+        out.opacity = signalOrValueRef(opacity);
+      }
+    }
+
+    out = { ...out,
+      ...symbolsSpec
+    };
+    return isEmpty(out) ? undefined : out;
+  }
+  function gradient(gradientSpec, _ref3) {
+    var _legendCmpt$get4;
+
+    let {
+      model,
+      legendType,
+      legendCmpt
+    } = _ref3;
+
+    if (legendType !== 'gradient') {
+      return undefined;
+    }
+
+    const {
+      config,
+      markDef,
+      encoding
+    } = model;
+    let out = {};
+    const gradientOpacity = (_legendCmpt$get4 = legendCmpt.get('gradientOpacity')) !== null && _legendCmpt$get4 !== void 0 ? _legendCmpt$get4 : config.legend.gradientOpacity;
+    const opacity = gradientOpacity === undefined ? getMaxValue(encoding.opacity) || markDef.opacity : undefined;
+
+    if (opacity) {
+      // only apply opacity if it is neither zero or undefined
+      out.opacity = signalOrValueRef(opacity);
+    }
+
+    out = { ...out,
+      ...gradientSpec
+    };
+    return isEmpty(out) ? undefined : out;
+  }
+  function labels$1(specifiedlabelsSpec, _ref4) {
+    let {
+      fieldOrDatumDef,
+      model,
+      channel,
+      legendCmpt
+    } = _ref4;
+    const legend = model.legend(channel) || {};
+    const config = model.config;
+    const condition = isFieldDef(fieldOrDatumDef) ? selectedCondition(model, legendCmpt, fieldOrDatumDef) : undefined;
+    const opacity = condition ? [{
+      test: condition,
+      value: 1
+    }, {
+      value: config.legend.unselectedOpacity
+    }] : undefined;
+    const {
+      format,
+      formatType
+    } = legend;
+    const text = isCustomFormatType(formatType) ? formatCustomType({
+      fieldOrDatumDef,
+      field: 'datum.value',
+      format,
+      formatType,
+      config
+    }) : undefined;
+    const labelsSpec = { ...(opacity ? {
+        opacity
+      } : {}),
+      ...(text ? {
+        text
+      } : {}),
+      ...specifiedlabelsSpec
+    };
+    return isEmpty(labelsSpec) ? undefined : labelsSpec;
+  }
+  function entries(entriesSpec, _ref5) {
+    let {
+      legendCmpt
+    } = _ref5;
+    const selections = legendCmpt.get('selections');
+    return selections !== null && selections !== void 0 && selections.length ? { ...entriesSpec,
+      fill: {
+        value: 'transparent'
+      }
+    } : entriesSpec;
+  }
+
+  function getMaxValue(channelDef) {
+    return getConditionValue(channelDef, (v, conditionalDef) => Math.max(v, conditionalDef.value));
+  }
+
+  function getFirstConditionValue(channelDef) {
+    return getConditionValue(channelDef, (v, conditionalDef) => {
+      return getFirstDefined(v, conditionalDef.value);
+    });
+  }
+
+  function getConditionValue(channelDef, reducer) {
+    if (hasConditionalValueDef(channelDef)) {
+      return vega.array(channelDef.condition).reduce(reducer, channelDef.value);
+    } else if (isValueDef(channelDef)) {
+      return channelDef.value;
+    }
+
+    return undefined;
+  }
+
+  function selectedCondition(model, legendCmpt, fieldDef) {
+    const selections = legendCmpt.get('selections');
+    if (!(selections !== null && selections !== void 0 && selections.length)) return undefined;
+    const field = vega.stringValue(fieldDef.field);
+    return selections.map(name => {
+      const store = vega.stringValue(varName(name) + STORE);
+      return "(!length(data(".concat(store, ")) || (").concat(name, "[").concat(field, "] && indexof(").concat(name, "[").concat(field, "], datum.value) >= 0))");
+    }).join(' || ');
+  }
+
+  const legendRules = {
+    direction: _ref => {
+      let {
+        direction
+      } = _ref;
+      return direction;
+    },
+    format: _ref2 => {
+      let {
+        fieldOrDatumDef,
+        legend,
+        config
+      } = _ref2;
+      const {
+        format,
+        formatType
+      } = legend;
+      return guideFormat(fieldOrDatumDef, fieldOrDatumDef.type, format, formatType, config, false);
+    },
+    formatType: _ref3 => {
+      let {
+        legend,
+        fieldOrDatumDef,
+        scaleType
+      } = _ref3;
+      const {
+        formatType
+      } = legend;
+      return guideFormatType(formatType, fieldOrDatumDef, scaleType);
+    },
+    gradientLength: params => {
+      var _ref4, _legend$gradientLengt;
+
+      const {
+        legend,
+        legendConfig
+      } = params;
+      return (_ref4 = (_legend$gradientLengt = legend.gradientLength) !== null && _legend$gradientLengt !== void 0 ? _legend$gradientLengt : legendConfig.gradientLength) !== null && _ref4 !== void 0 ? _ref4 : defaultGradientLength(params);
+    },
+    labelOverlap: _ref5 => {
+      var _ref6, _legend$labelOverlap;
+
+      let {
+        legend,
+        legendConfig,
+        scaleType
+      } = _ref5;
+      return (_ref6 = (_legend$labelOverlap = legend.labelOverlap) !== null && _legend$labelOverlap !== void 0 ? _legend$labelOverlap : legendConfig.labelOverlap) !== null && _ref6 !== void 0 ? _ref6 : defaultLabelOverlap(scaleType);
+    },
+    symbolType: _ref7 => {
+      var _legend$symbolType;
+
+      let {
+        legend,
+        markDef,
+        channel,
+        encoding
+      } = _ref7;
+      return (_legend$symbolType = legend.symbolType) !== null && _legend$symbolType !== void 0 ? _legend$symbolType : defaultSymbolType(markDef.type, channel, encoding.shape, markDef.shape);
+    },
+    title: _ref8 => {
+      let {
+        fieldOrDatumDef,
+        config
+      } = _ref8;
+      return title(fieldOrDatumDef, config, {
+        allowDisabling: true
+      });
+    },
+    type: _ref9 => {
+      let {
+        legendType,
+        scaleType,
+        channel
+      } = _ref9;
+
+      if (isColorChannel(channel) && isContinuousToContinuous(scaleType)) {
+        if (legendType === 'gradient') {
+          return undefined;
+        }
+      } else if (legendType === 'symbol') {
+        return undefined;
+      }
+
+      return legendType;
+    },
+    // depended by other property, let's define upfront
+    values: _ref10 => {
+      let {
+        fieldOrDatumDef,
+        legend
+      } = _ref10;
+      return values(legend, fieldOrDatumDef);
+    }
+  };
+  function values(legend, fieldOrDatumDef) {
+    const vals = legend.values;
+
+    if (vega.isArray(vals)) {
+      return valueArray(fieldOrDatumDef, vals);
+    } else if (isSignalRef(vals)) {
+      return vals;
+    }
+
+    return undefined;
+  }
+  function defaultSymbolType(mark, channel, shapeChannelDef, markShape) {
+    if (channel !== 'shape') {
+      var _getFirstConditionVal;
+
+      // use the value from the shape encoding or the mark config if they exist
+      const shape = (_getFirstConditionVal = getFirstConditionValue(shapeChannelDef)) !== null && _getFirstConditionVal !== void 0 ? _getFirstConditionVal : markShape;
+
+      if (shape) {
+        return shape;
+      }
+    }
+
+    switch (mark) {
+      case 'bar':
+      case 'rect':
+      case 'image':
+      case 'square':
+        return 'square';
+
+      case 'line':
+      case 'trail':
+      case 'rule':
+        return 'stroke';
+
+      case 'arc':
+      case 'point':
+      case 'circle':
+      case 'tick':
+      case 'geoshape':
+      case 'area':
+      case 'text':
+        return 'circle';
+    }
+  }
+  function getLegendType(params) {
+    const {
+      legend
+    } = params;
+    return getFirstDefined(legend.type, defaultType$1(params));
+  }
+  function defaultType$1(_ref11) {
+    let {
+      channel,
+      timeUnit,
+      scaleType
+    } = _ref11;
+
+    // Following the logic in https://github.com/vega/vega-parser/blob/master/src/parsers/legend.js
+    if (isColorChannel(channel)) {
+      if (contains(['quarter', 'month', 'day'], timeUnit)) {
+        return 'symbol';
+      }
+
+      if (isContinuousToContinuous(scaleType)) {
+        return 'gradient';
+      }
+    }
+
+    return 'symbol';
+  }
+  function getDirection(_ref12) {
+    var _ref13, _legend$direction;
+
+    let {
+      legendConfig,
+      legendType,
+      orient,
+      legend
+    } = _ref12;
+    return (_ref13 = (_legend$direction = legend.direction) !== null && _legend$direction !== void 0 ? _legend$direction : legendConfig[legendType ? 'gradientDirection' : 'symbolDirection']) !== null && _ref13 !== void 0 ? _ref13 : defaultDirection(orient, legendType);
+  }
+  function defaultDirection(orient, legendType) {
+    switch (orient) {
+      case 'top':
+      case 'bottom':
+        return 'horizontal';
+
+      case 'left':
+      case 'right':
+      case 'none':
+      case undefined:
+        // undefined = "right" in Vega
+        return undefined;
+      // vertical is Vega's default
+
+      default:
+        // top-left / ...
+        // For inner legend, uses compact layout like Tableau
+        return legendType === 'gradient' ? 'horizontal' : undefined;
+    }
+  }
+  function defaultGradientLength(_ref14) {
+    let {
+      legendConfig,
+      model,
+      direction,
+      orient,
+      scaleType
+    } = _ref14;
+    const {
+      gradientHorizontalMaxLength,
+      gradientHorizontalMinLength,
+      gradientVerticalMaxLength,
+      gradientVerticalMinLength
+    } = legendConfig;
+
+    if (isContinuousToContinuous(scaleType)) {
+      if (direction === 'horizontal') {
+        if (orient === 'top' || orient === 'bottom') {
+          return gradientLengthSignal(model, 'width', gradientHorizontalMinLength, gradientHorizontalMaxLength);
+        } else {
+          return gradientHorizontalMinLength;
+        }
+      } else {
+        // vertical / undefined (Vega uses vertical by default)
+        return gradientLengthSignal(model, 'height', gradientVerticalMinLength, gradientVerticalMaxLength);
+      }
+    }
+
+    return undefined;
+  }
+
+  function gradientLengthSignal(model, sizeType, min, max) {
+    const sizeSignal = model.getSizeSignalRef(sizeType).signal;
+    return {
+      signal: "clamp(".concat(sizeSignal, ", ").concat(min, ", ").concat(max, ")")
+    };
+  }
+
+  function defaultLabelOverlap(scaleType) {
+    if (contains(['quantile', 'threshold', 'log', 'symlog'], scaleType)) {
+      return 'greedy';
+    }
+
+    return undefined;
+  }
+
+  function parseLegend(model) {
+    const legendComponent = isUnitModel(model) ? parseUnitLegend(model) : parseNonUnitLegend(model);
+    model.component.legends = legendComponent;
+    return legendComponent;
+  }
+
+  function parseUnitLegend(model) {
+    const {
+      encoding
+    } = model;
+    const legendComponent = {};
+
+    for (const channel of [COLOR, ...LEGEND_SCALE_CHANNELS]) {
+      const def = getFieldOrDatumDef(encoding[channel]);
+
+      if (!def || !model.getScaleComponent(channel)) {
+        continue;
+      }
+
+      if (channel === SHAPE && isFieldDef(def) && def.type === GEOJSON) {
+        continue;
+      }
+
+      legendComponent[channel] = parseLegendForChannel(model, channel);
+    }
+
+    return legendComponent;
+  }
+
+  function getLegendDefWithScale(model, channel) {
+    const scale = model.scaleName(channel);
+
+    if (model.mark === 'trail') {
+      if (channel === 'color') {
+        // trail is a filled mark, but its default symbolType ("stroke") should use "stroke"
+        return {
+          stroke: scale
+        };
+      } else if (channel === 'size') {
+        return {
+          strokeWidth: scale
+        };
+      }
+    }
+
+    if (channel === 'color') {
+      return model.markDef.filled ? {
+        fill: scale
+      } : {
+        stroke: scale
+      };
+    }
+
+    return {
+      [channel]: scale
+    };
+  } // eslint-disable-next-line @typescript-eslint/ban-types
+
+
+  function isExplicit$1(value, property, legend, fieldDef) {
+    switch (property) {
+      case 'disable':
+        return legend !== undefined;
+      // if axis is specified or null/false, then its enable/disable state is explicit
+
+      case 'values':
+        // specified legend.values is already respected, but may get transformed.
+        return !!(legend !== null && legend !== void 0 && legend.values);
+
+      case 'title':
+        // title can be explicit if fieldDef.title is set
+        if (property === 'title' && value === (fieldDef === null || fieldDef === void 0 ? void 0 : fieldDef.title)) {
+          return true;
+        }
+
+    } // Otherwise, things are explicit if the returned value matches the specified property
+
+
+    return value === (legend || {})[property];
+  }
+
+  function parseLegendForChannel(model, channel) {
+    var _normalizeTimeUnit, _legend$encoding, _legend;
+
+    let legend = model.legend(channel);
+    const {
+      markDef,
+      encoding,
+      config
+    } = model;
+    const legendConfig = config.legend;
+    const legendCmpt = new LegendComponent({}, getLegendDefWithScale(model, channel));
+    parseInteractiveLegend(model, channel, legendCmpt);
+    const disable = legend !== undefined ? !legend : legendConfig.disable;
+    legendCmpt.set('disable', disable, legend !== undefined);
+
+    if (disable) {
+      return legendCmpt;
+    }
+
+    legend = legend || {};
+    const scaleType = model.getScaleComponent(channel).get('type');
+    const fieldOrDatumDef = getFieldOrDatumDef(encoding[channel]);
+    const timeUnit = isFieldDef(fieldOrDatumDef) ? (_normalizeTimeUnit = normalizeTimeUnit(fieldOrDatumDef.timeUnit)) === null || _normalizeTimeUnit === void 0 ? void 0 : _normalizeTimeUnit.unit : undefined;
+    const orient = legend.orient || config.legend.orient || 'right';
+    const legendType = getLegendType({
+      legend,
+      channel,
+      timeUnit,
+      scaleType
+    });
+    const direction = getDirection({
+      legend,
+      legendType,
+      orient,
+      legendConfig
+    });
+    const ruleParams = {
+      legend,
+      channel,
+      model,
+      markDef,
+      encoding,
+      fieldOrDatumDef,
+      legendConfig,
+      config,
+      scaleType,
+      orient,
+      legendType,
+      direction
+    };
+
+    for (const property of LEGEND_COMPONENT_PROPERTIES) {
+      if (legendType === 'gradient' && property.startsWith('symbol') || legendType === 'symbol' && property.startsWith('gradient')) {
+        continue;
+      }
+
+      const value = property in legendRules ? legendRules[property](ruleParams) : legend[property];
+
+      if (value !== undefined) {
+        const explicit = isExplicit$1(value, property, legend, model.fieldDef(channel));
+
+        if (explicit || config.legend[property] === undefined) {
+          legendCmpt.set(property, value, explicit);
+        }
+      }
+    }
+
+    const legendEncoding = (_legend$encoding = (_legend = legend) === null || _legend === void 0 ? void 0 : _legend.encoding) !== null && _legend$encoding !== void 0 ? _legend$encoding : {};
+    const selections = legendCmpt.get('selections');
+    const legendEncode = {};
+    const legendEncodeParams = {
+      fieldOrDatumDef,
+      model,
+      channel,
+      legendCmpt,
+      legendType
+    };
+
+    for (const part of ['labels', 'legend', 'title', 'symbols', 'gradient', 'entries']) {
+      var _legendEncoding$part;
+
+      const legendEncodingPart = guideEncodeEntry((_legendEncoding$part = legendEncoding[part]) !== null && _legendEncoding$part !== void 0 ? _legendEncoding$part : {}, model);
+      const value = part in legendEncodeRules ? legendEncodeRules[part](legendEncodingPart, legendEncodeParams) // apply rule
+      : legendEncodingPart; // no rule -- just default values
+
+      if (value !== undefined && !isEmpty(value)) {
+        legendEncode[part] = { ...(selections !== null && selections !== void 0 && selections.length && isFieldDef(fieldOrDatumDef) ? {
+            name: "".concat(varName(fieldOrDatumDef.field), "_legend_").concat(part)
+          } : {}),
+          ...(selections !== null && selections !== void 0 && selections.length ? {
+            interactive: !!selections
+          } : {}),
+          update: value
+        };
+      }
+    }
+
+    if (!isEmpty(legendEncode)) {
+      var _legend2;
+
+      legendCmpt.set('encode', legendEncode, !!((_legend2 = legend) !== null && _legend2 !== void 0 && _legend2.encoding));
+    }
+
+    return legendCmpt;
+  }
+
+  function parseNonUnitLegend(model) {
+    const {
+      legends,
+      resolve
+    } = model.component;
+
+    for (const child of model.children) {
+      parseLegend(child);
+
+      for (const channel of keys(child.component.legends)) {
+        resolve.legend[channel] = parseGuideResolve(model.component.resolve, channel);
+
+        if (resolve.legend[channel] === 'shared') {
+          // If the resolve says shared (and has not been overridden)
+          // We will try to merge and see if there is a conflict
+          legends[channel] = mergeLegendComponent(legends[channel], child.component.legends[channel]);
+
+          if (!legends[channel]) {
+            // If merge returns nothing, there is a conflict so we cannot make the legend shared.
+            // Thus, mark legend as independent and remove the legend component.
+            resolve.legend[channel] = 'independent';
+            delete legends[channel];
+          }
+        }
+      }
+    }
+
+    for (const channel of keys(legends)) {
+      for (const child of model.children) {
+        if (!child.component.legends[channel]) {
+          // skip if the child does not have a particular legend
+          continue;
+        }
+
+        if (resolve.legend[channel] === 'shared') {
+          // After merging shared legend, make sure to remove legend from child
+          delete child.component.legends[channel];
+        }
+      }
+    }
+
+    return legends;
+  }
+
+  function mergeLegendComponent(mergedLegend, childLegend) {
+    if (!mergedLegend) {
+      return childLegend.clone();
+    }
+
+    const mergedOrient = mergedLegend.getWithExplicit('orient');
+    const childOrient = childLegend.getWithExplicit('orient');
+
+    if (mergedOrient.explicit && childOrient.explicit && mergedOrient.value !== childOrient.value) {
+      // TODO: throw warning if resolve is explicit (We don't have info about explicit/implicit resolve yet.)
+      // Cannot merge due to inconsistent orient
+      return undefined;
+    }
+
+    let typeMerged = false; // Otherwise, let's merge
+
+    for (const prop of LEGEND_COMPONENT_PROPERTIES) {
+      const mergedValueWithExplicit = mergeValuesWithExplicit(mergedLegend.getWithExplicit(prop), childLegend.getWithExplicit(prop), prop, 'legend', // Tie breaker function
+      (v1, v2) => {
+        switch (prop) {
+          case 'symbolType':
+            return mergeSymbolType(v1, v2);
+
+          case 'title':
+            return mergeTitleComponent(v1, v2);
+
+          case 'type':
+            // There are only two types. If we have different types, then prefer symbol over gradient.
+            typeMerged = true;
+            return makeImplicit('symbol');
+        }
+
+        return defaultTieBreaker(v1, v2, prop, 'legend');
+      });
+      mergedLegend.setWithExplicit(prop, mergedValueWithExplicit);
+    }
+
+    if (typeMerged) {
+      var _mergedLegend$implici, _mergedLegend$implici2, _mergedLegend$explici, _mergedLegend$explici2;
+
+      if ((_mergedLegend$implici = mergedLegend.implicit) !== null && _mergedLegend$implici !== void 0 && (_mergedLegend$implici2 = _mergedLegend$implici.encode) !== null && _mergedLegend$implici2 !== void 0 && _mergedLegend$implici2.gradient) {
+        deleteNestedProperty(mergedLegend.implicit, ['encode', 'gradient']);
+      }
+
+      if ((_mergedLegend$explici = mergedLegend.explicit) !== null && _mergedLegend$explici !== void 0 && (_mergedLegend$explici2 = _mergedLegend$explici.encode) !== null && _mergedLegend$explici2 !== void 0 && _mergedLegend$explici2.gradient) {
+        deleteNestedProperty(mergedLegend.explicit, ['encode', 'gradient']);
+      }
+    }
+
+    return mergedLegend;
+  }
+
+  function mergeSymbolType(st1, st2) {
+    if (st2.value === 'circle') {
+      // prefer "circle" over "stroke"
+      return st2;
+    }
+
+    return st1;
+  }
+
+  function setLegendEncode(legend, part, vgProp, vgRef) {
+    var _legend$encode, _legend$encode2, _legend$encode2$part, _legend$encode$part, _legend$encode$part$u;
+
+    (_legend$encode = legend.encode) !== null && _legend$encode !== void 0 ? _legend$encode : legend.encode = {};
+    (_legend$encode2$part = (_legend$encode2 = legend.encode)[part]) !== null && _legend$encode2$part !== void 0 ? _legend$encode2$part : _legend$encode2[part] = {};
+    (_legend$encode$part$u = (_legend$encode$part = legend.encode[part]).update) !== null && _legend$encode$part$u !== void 0 ? _legend$encode$part$u : _legend$encode$part.update = {}; // TODO: remove as any after https://github.com/prisma/nexus-prisma/issues/291
+
+    legend.encode[part].update[vgProp] = vgRef;
+  }
+
+  function assembleLegends(model) {
+    const legendComponentIndex = model.component.legends;
+    const legendByDomain = {};
+
+    for (const channel of keys(legendComponentIndex)) {
+      const scaleComponent = model.getScaleComponent(channel);
+      const domainHash = stringify(scaleComponent.get('domains'));
+
+      if (legendByDomain[domainHash]) {
+        for (const mergedLegendComponent of legendByDomain[domainHash]) {
+          const merged = mergeLegendComponent(mergedLegendComponent, legendComponentIndex[channel]);
+
+          if (!merged) {
+            // If cannot merge, need to add this legend separately
+            legendByDomain[domainHash].push(legendComponentIndex[channel]);
+          }
+        }
+      } else {
+        legendByDomain[domainHash] = [legendComponentIndex[channel].clone()];
+      }
+    }
+
+    const legends = vals(legendByDomain).flat().map(l => assembleLegend(l, model.config)).filter(l => l !== undefined);
+    return legends;
+  }
+  function assembleLegend(legendCmpt, config) {
+    var _legend$encode3;
+
+    const {
+      disable,
+      labelExpr,
+      selections,
+      ...legend
+    } = legendCmpt.combine();
+
+    if (disable) {
+      return undefined;
+    }
+
+    if (config.aria === false && legend.aria == undefined) {
+      legend.aria = false;
+    }
+
+    if ((_legend$encode3 = legend.encode) !== null && _legend$encode3 !== void 0 && _legend$encode3.symbols) {
+      const out = legend.encode.symbols.update;
+
+      if (out.fill && out.fill['value'] !== 'transparent' && !out.stroke && !legend.stroke) {
+        // For non color channel's legend, we need to override symbol stroke config from Vega config if stroke channel is not used.
+        out.stroke = {
+          value: 'transparent'
+        };
+      } // Remove properties that the legend is encoding.
+
+
+      for (const property of LEGEND_SCALE_CHANNELS) {
+        if (legend[property]) {
+          delete out[property];
+        }
+      }
+    }
+
+    if (!legend.title) {
+      // title schema doesn't include null, ''
+      delete legend.title;
+    }
+
+    if (labelExpr !== undefined) {
+      var _legend$encode4, _legend$encode4$label;
+
+      let expr = labelExpr;
+
+      if ((_legend$encode4 = legend.encode) !== null && _legend$encode4 !== void 0 && (_legend$encode4$label = _legend$encode4.labels) !== null && _legend$encode4$label !== void 0 && _legend$encode4$label.update && isSignalRef(legend.encode.labels.update.text)) {
+        expr = replaceAll(labelExpr, 'datum.label', legend.encode.labels.update.text.signal);
+      }
+
+      setLegendEncode(legend, 'labels', 'text', {
+        signal: expr
+      });
+    }
+
+    return legend;
+  }
+
+  function assembleProjections(model) {
+    if (isLayerModel(model) || isConcatModel(model)) {
+      return assembleProjectionsForModelAndChildren(model);
+    } else {
+      return assembleProjectionForModel(model);
+    }
+  }
+  function assembleProjectionsForModelAndChildren(model) {
+    return model.children.reduce((projections, child) => {
+      return projections.concat(child.assembleProjections());
+    }, assembleProjectionForModel(model));
+  }
+  function assembleProjectionForModel(model) {
+    const component = model.component.projection;
+
+    if (!component || component.merged) {
+      return [];
+    }
+
+    const projection = component.combine();
+    const {
+      name
+    } = projection; // we need to extract name so that it is always present in the output and pass TS type validation
+
+    if (!component.data) {
+      // generate custom projection, no automatic fitting
+      return [{
+        name,
+        // translate to center by default
+        ...{
+          translate: {
+            signal: '[width / 2, height / 2]'
+          }
+        },
+        // parameters, overwrite default translate if specified
+        ...projection
+      }];
+    } else {
+      // generate projection that uses extent fitting
+      const size = {
+        signal: "[".concat(component.size.map(ref => ref.signal).join(', '), "]")
+      };
+      const fits = component.data.reduce((sources, data) => {
+        const source = isSignalRef(data) ? data.signal : "data('".concat(model.lookupDataSource(data), "')");
+
+        if (!contains(sources, source)) {
+          // build a unique list of sources
+          sources.push(source);
+        }
+
+        return sources;
+      }, []);
+
+      if (fits.length <= 0) {
+        throw new Error("Projection's fit didn't find any data sources");
+      }
+
+      return [{
+        name,
+        size,
+        fit: {
+          signal: fits.length > 1 ? "[".concat(fits.join(', '), "]") : fits[0]
+        },
+        ...projection
+      }];
+    }
+  }
+
+  /**
+   * Any property of Projection can be in config
+   */
+  const PROJECTION_PROPERTIES = ['type', 'clipAngle', 'clipExtent', 'center', 'rotate', 'precision', 'reflectX', 'reflectY', 'coefficient', 'distance', 'fraction', 'lobes', 'parallel', 'radius', 'ratio', 'spacing', 'tilt'];
+
+  class ProjectionComponent extends Split {
+    constructor(name, specifiedProjection, size, data) {
+      super({ ...specifiedProjection
+      }, // all explicit properties of projection
+      {
+        name
+      } // name as initial implicit property
+      );
+      this.specifiedProjection = specifiedProjection;
+      this.size = size;
+      this.data = data;
+
+      _defineProperty(this, "merged", false);
+    }
+    /**
+     * Whether the projection parameters should fit provided data.
+     */
+
+
+    get isFit() {
+      return !!this.data;
+    }
+
+  }
+
+  function parseProjection(model) {
+    model.component.projection = isUnitModel(model) ? parseUnitProjection(model) : parseNonUnitProjections(model);
+  }
+
+  function parseUnitProjection(model) {
+    if (model.hasProjection) {
+      var _replaceExprRef;
+
+      const proj = replaceExprRef(model.specifiedProjection);
+      const fit = !(proj && (proj.scale != null || proj.translate != null));
+      const size = fit ? [model.getSizeSignalRef('width'), model.getSizeSignalRef('height')] : undefined;
+      const data = fit ? gatherFitData(model) : undefined;
+      const projComp = new ProjectionComponent(model.projectionName(true), { ...((_replaceExprRef = replaceExprRef(model.config.projection)) !== null && _replaceExprRef !== void 0 ? _replaceExprRef : {}),
+        ...(proj !== null && proj !== void 0 ? proj : {})
+      }, size, data);
+
+      if (!projComp.get('type')) {
+        projComp.set('type', 'equalEarth', false);
+      }
+
+      return projComp;
+    }
+
+    return undefined;
+  }
+
+  function gatherFitData(model) {
+    const data = [];
+    const {
+      encoding
+    } = model;
+
+    for (const posssiblePair of [[LONGITUDE, LATITUDE], [LONGITUDE2, LATITUDE2]]) {
+      if (getFieldOrDatumDef(encoding[posssiblePair[0]]) || getFieldOrDatumDef(encoding[posssiblePair[1]])) {
+        data.push({
+          signal: model.getName("geojson_".concat(data.length))
+        });
+      }
+    }
+
+    if (model.channelHasField(SHAPE) && model.typedFieldDef(SHAPE).type === GEOJSON) {
+      data.push({
+        signal: model.getName("geojson_".concat(data.length))
+      });
+    }
+
+    if (data.length === 0) {
+      // main source is geojson, so we can just use that
+      data.push(model.requestDataName(DataSourceType.Main));
+    }
+
+    return data;
+  }
+
+  function mergeIfNoConflict(first, second) {
+    const allPropertiesShared = every(PROJECTION_PROPERTIES, prop => {
+      // neither has the property
+      if (!vega.hasOwnProperty(first.explicit, prop) && !vega.hasOwnProperty(second.explicit, prop)) {
+        return true;
+      } // both have property and an equal value for property
+
+
+      if (vega.hasOwnProperty(first.explicit, prop) && vega.hasOwnProperty(second.explicit, prop) && // some properties might be signals or objects and require hashing for comparison
+      deepEqual(first.get(prop), second.get(prop))) {
+        return true;
+      }
+
+      return false;
+    });
+    const size = deepEqual(first.size, second.size);
+
+    if (size) {
+      if (allPropertiesShared) {
+        return first;
+      } else if (deepEqual(first.explicit, {})) {
+        return second;
+      } else if (deepEqual(second.explicit, {})) {
+        return first;
+      }
+    } // if all properties don't match, let each unit spec have its own projection
+
+
+    return null;
+  }
+
+  function parseNonUnitProjections(model) {
+    if (model.children.length === 0) {
+      return undefined;
+    }
+
+    let nonUnitProjection; // parse all children first
+
+    for (const child of model.children) {
+      parseProjection(child);
+    } // analyze parsed projections, attempt to merge
+
+
+    const mergable = every(model.children, child => {
+      const projection = child.component.projection;
+
+      if (!projection) {
+        // child layer does not use a projection
+        return true;
+      } else if (!nonUnitProjection) {
+        // cached 'projection' is null, cache this one
+        nonUnitProjection = projection;
+        return true;
+      } else {
+        const merge = mergeIfNoConflict(nonUnitProjection, projection);
+
+        if (merge) {
+          nonUnitProjection = merge;
+        }
+
+        return !!merge;
+      }
+    }); // if cached one and all other children share the same projection,
+
+    if (nonUnitProjection && mergable) {
+      // so we can elevate it to the layer level
+      const name = model.projectionName(true);
+      const modelProjection = new ProjectionComponent(name, nonUnitProjection.specifiedProjection, nonUnitProjection.size, duplicate(nonUnitProjection.data)); // rename and assign all others as merged
+
+      for (const child of model.children) {
+        const projection = child.component.projection;
+
+        if (projection) {
+          if (projection.isFit) {
+            modelProjection.data.push(...child.component.projection.data);
+          }
+
+          child.renameProjection(projection.get('name'), name);
+          projection.merged = true;
+        }
+      }
+
+      return modelProjection;
+    }
+
+    return undefined;
+  }
+
+  function rangeFormula(model, fieldDef, channel, config) {
+    if (binRequiresRange(fieldDef, channel)) {
+      var _ref, _model$axis;
+
+      // read format from axis or legend, if there is no format then use config.numberFormat
+      const guide = isUnitModel(model) ? (_ref = (_model$axis = model.axis(channel)) !== null && _model$axis !== void 0 ? _model$axis : model.legend(channel)) !== null && _ref !== void 0 ? _ref : {} : {};
+      const startField = vgField(fieldDef, {
+        expr: 'datum'
+      });
+      const endField = vgField(fieldDef, {
+        expr: 'datum',
+        binSuffix: 'end'
+      });
+      return {
+        formulaAs: vgField(fieldDef, {
+          binSuffix: 'range',
+          forAs: true
+        }),
+        formula: binFormatExpression(startField, endField, guide.format, guide.formatType, config)
+      };
+    }
+
+    return {};
+  }
+
+  function binKey(bin, field) {
+    return "".concat(binToString(bin), "_").concat(field);
+  }
+
+  function getSignalsFromModel(model, key) {
+    return {
+      signal: model.getName("".concat(key, "_bins")),
+      extentSignal: model.getName("".concat(key, "_extent"))
+    };
+  }
+
+  function getBinSignalName(model, field, bin) {
+    var _normalizeBin;
+
+    const normalizedBin = (_normalizeBin = normalizeBin(bin, undefined)) !== null && _normalizeBin !== void 0 ? _normalizeBin : {};
+    const key = binKey(normalizedBin, field);
+    return model.getName("".concat(key, "_bins"));
+  }
+
+  function isBinTransform(t) {
+    return 'as' in t;
+  }
+
+  function createBinComponent(t, bin, model) {
+    let as;
+    let span;
+
+    if (isBinTransform(t)) {
+      as = vega.isString(t.as) ? [t.as, "".concat(t.as, "_end")] : [t.as[0], t.as[1]];
+    } else {
+      as = [vgField(t, {
+        forAs: true
+      }), vgField(t, {
+        binSuffix: 'end',
+        forAs: true
+      })];
+    }
+
+    const normalizedBin = { ...normalizeBin(bin, undefined)
+    };
+    const key = binKey(normalizedBin, t.field);
+    const {
+      signal,
+      extentSignal
+    } = getSignalsFromModel(model, key);
+
+    if (isParameterExtent(normalizedBin.extent)) {
+      const ext = normalizedBin.extent;
+      span = parseSelectionExtent(model, ext.param, ext);
+      delete normalizedBin.extent; // Vega-Lite selection extent map to Vega's span property.
+    }
+
+    const binComponent = {
+      bin: normalizedBin,
+      field: t.field,
+      as: [as],
+      ...(signal ? {
+        signal
+      } : {}),
+      ...(extentSignal ? {
+        extentSignal
+      } : {}),
+      ...(span ? {
+        span
+      } : {})
+    };
+    return {
+      key,
+      binComponent
+    };
+  }
+
+  class BinNode extends DataFlowNode {
+    clone() {
+      return new BinNode(null, duplicate(this.bins));
+    }
+
+    constructor(parent, bins) {
+      super(parent);
+      this.bins = bins;
+    }
+
+    static makeFromEncoding(parent, model) {
+      const bins = model.reduceFieldDef((binComponentIndex, fieldDef, channel) => {
+        if (isTypedFieldDef(fieldDef) && isBinning(fieldDef.bin)) {
+          const {
+            key,
+            binComponent
+          } = createBinComponent(fieldDef, fieldDef.bin, model);
+          binComponentIndex[key] = { ...binComponent,
+            ...binComponentIndex[key],
+            ...rangeFormula(model, fieldDef, channel, model.config)
+          };
+        }
+
+        return binComponentIndex;
+      }, {});
+
+      if (isEmpty(bins)) {
+        return null;
+      }
+
+      return new BinNode(parent, bins);
+    }
+    /**
+     * Creates a bin node from BinTransform.
+     * The optional parameter should provide
+     */
+
+
+    static makeFromTransform(parent, t, model) {
+      const {
+        key,
+        binComponent
+      } = createBinComponent(t, t.bin, model);
+      return new BinNode(parent, {
+        [key]: binComponent
+      });
+    }
+    /**
+     * Merge bin nodes. This method either integrates the bin config from the other node
+     * or if this node already has a bin config, renames the corresponding signal in the model.
+     */
+
+
+    merge(other, renameSignal) {
+      for (const key of keys(other.bins)) {
+        if (key in this.bins) {
+          renameSignal(other.bins[key].signal, this.bins[key].signal); // Ensure that we don't have duplicate names for signal pairs
+
+          this.bins[key].as = unique([...this.bins[key].as, ...other.bins[key].as], hash);
+        } else {
+          this.bins[key] = other.bins[key];
+        }
+      }
+
+      for (const child of other.children) {
+        other.removeChild(child);
+        child.parent = this;
+      }
+
+      other.remove();
+    }
+
+    producedFields() {
+      return new Set(vals(this.bins).map(c => c.as).flat(2));
+    }
+
+    dependentFields() {
+      return new Set(vals(this.bins).map(c => c.field));
+    }
+
+    hash() {
+      return "Bin ".concat(hash(this.bins));
+    }
+
+    assemble() {
+      return vals(this.bins).flatMap(bin => {
+        const transform = [];
+        const [binAs, ...remainingAs] = bin.as;
+        const {
+          extent,
+          ...params
+        } = bin.bin;
+        const binTrans = {
+          type: 'bin',
+          field: replacePathInField(bin.field),
+          as: binAs,
+          signal: bin.signal,
+          ...(!isParameterExtent(extent) ? {
+            extent
+          } : {
+            extent: null
+          }),
+          ...(bin.span ? {
+            span: {
+              signal: "span(".concat(bin.span, ")")
+            }
+          } : {}),
+          ...params
+        };
+
+        if (!extent && bin.extentSignal) {
+          transform.push({
+            type: 'extent',
+            field: replacePathInField(bin.field),
+            signal: bin.extentSignal
+          });
+          binTrans.extent = {
+            signal: bin.extentSignal
+          };
+        }
+
+        transform.push(binTrans);
+
+        for (const as of remainingAs) {
+          for (let i = 0; i < 2; i++) {
+            transform.push({
+              type: 'formula',
+              expr: vgField({
+                field: binAs[i]
+              }, {
+                expr: 'datum'
+              }),
+              as: as[i]
+            });
+          }
+        }
+
+        if (bin.formula) {
+          transform.push({
+            type: 'formula',
+            expr: bin.formula,
+            as: bin.formulaAs
+          });
+        }
+
+        return transform;
+      });
+    }
+
+  }
+
+  function addDimension(dims, channel, fieldDef, model) {
+    var _fieldDef$scale;
+
+    const channelDef2 = isUnitModel(model) ? model.encoding[getSecondaryRangeChannel(channel)] : undefined;
+
+    if (isTypedFieldDef(fieldDef) && isUnitModel(model) && hasBandEnd(fieldDef, channelDef2, model.markDef, model.config)) {
+      dims.add(vgField(fieldDef, {}));
+      dims.add(vgField(fieldDef, {
+        suffix: 'end'
+      }));
+
+      if (fieldDef.bin && binRequiresRange(fieldDef, channel)) {
+        dims.add(vgField(fieldDef, {
+          binSuffix: 'range'
+        }));
+      }
+    } else if (isGeoPositionChannel(channel)) {
+      const posChannel = getPositionChannelFromLatLong(channel);
+      dims.add(model.getName(posChannel));
+    } else {
+      dims.add(vgField(fieldDef));
+    }
+
+    if (isScaleFieldDef(fieldDef) && isFieldRange((_fieldDef$scale = fieldDef.scale) === null || _fieldDef$scale === void 0 ? void 0 : _fieldDef$scale.range)) {
+      dims.add(fieldDef.scale.range.field);
+    }
+
+    return dims;
+  }
+
+  function mergeMeasures(parentMeasures, childMeasures) {
+    for (const field of keys(childMeasures)) {
+      // when we merge a measure, we either have to add an aggregation operator or even a new field
+      const ops = childMeasures[field];
+
+      for (const op of keys(ops)) {
+        if (field in parentMeasures) {
+          var _parentMeasures$field;
+
+          // add operator to existing measure field
+          parentMeasures[field][op] = new Set([...((_parentMeasures$field = parentMeasures[field][op]) !== null && _parentMeasures$field !== void 0 ? _parentMeasures$field : []), ...ops[op]]);
+        } else {
+          parentMeasures[field] = {
+            [op]: ops[op]
+          };
+        }
+      }
+    }
+  }
+
+  class AggregateNode extends DataFlowNode {
+    clone() {
+      return new AggregateNode(null, new Set(this.dimensions), duplicate(this.measures));
+    }
+    /**
+     * @param dimensions string set for dimensions
+     * @param measures dictionary mapping field name => dict of aggregation functions and names to use
+     */
+
+
+    constructor(parent, dimensions, measures) {
+      super(parent);
+      this.dimensions = dimensions;
+      this.measures = measures;
+    }
+
+    get groupBy() {
+      return this.dimensions;
+    }
+
+    static makeFromEncoding(parent, model) {
+      let isAggregate = false;
+      model.forEachFieldDef(fd => {
+        if (fd.aggregate) {
+          isAggregate = true;
+        }
+      });
+      const meas = {};
+      const dims = new Set();
+
+      if (!isAggregate) {
+        // no need to create this node if the model has no aggregation
+        return null;
+      }
+
+      model.forEachFieldDef((fieldDef, channel) => {
+        const {
+          aggregate,
+          field
+        } = fieldDef;
+
+        if (aggregate) {
+          if (aggregate === 'count') {
+            var _, _meas$_;
+
+            (_meas$_ = meas[_ = '*']) !== null && _meas$_ !== void 0 ? _meas$_ : meas[_] = {};
+            meas['*']['count'] = new Set([vgField(fieldDef, {
+              forAs: true
+            })]);
+          } else {
+            if (isArgminDef(aggregate) || isArgmaxDef(aggregate)) {
+              var _meas$argField;
+
+              const op = isArgminDef(aggregate) ? 'argmin' : 'argmax';
+              const argField = aggregate[op];
+              (_meas$argField = meas[argField]) !== null && _meas$argField !== void 0 ? _meas$argField : meas[argField] = {};
+              meas[argField][op] = new Set([vgField({
+                op,
+                field: argField
+              }, {
+                forAs: true
+              })]);
+            } else {
+              var _meas$field;
+
+              (_meas$field = meas[field]) !== null && _meas$field !== void 0 ? _meas$field : meas[field] = {};
+              meas[field][aggregate] = new Set([vgField(fieldDef, {
+                forAs: true
+              })]);
+            } // For scale channel with domain === 'unaggregated', add min/max so we can use their union as unaggregated domain
+
+
+            if (isScaleChannel(channel) && model.scaleDomain(channel) === 'unaggregated') {
+              var _meas$field2;
+
+              (_meas$field2 = meas[field]) !== null && _meas$field2 !== void 0 ? _meas$field2 : meas[field] = {};
+              meas[field]['min'] = new Set([vgField({
+                field,
+                aggregate: 'min'
+              }, {
+                forAs: true
+              })]);
+              meas[field]['max'] = new Set([vgField({
+                field,
+                aggregate: 'max'
+              }, {
+                forAs: true
+              })]);
+            }
+          }
+        } else {
+          addDimension(dims, channel, fieldDef, model);
+        }
+      });
+
+      if (dims.size + keys(meas).length === 0) {
+        return null;
+      }
+
+      return new AggregateNode(parent, dims, meas);
+    }
+
+    static makeFromTransform(parent, t) {
+      const dims = new Set();
+      const meas = {};
+
+      for (const s of t.aggregate) {
+        const {
+          op,
+          field,
+          as
+        } = s;
+
+        if (op) {
+          if (op === 'count') {
+            var _2, _meas$_2;
+
+            (_meas$_2 = meas[_2 = '*']) !== null && _meas$_2 !== void 0 ? _meas$_2 : meas[_2] = {};
+            meas['*']['count'] = new Set([as ? as : vgField(s, {
+              forAs: true
+            })]);
+          } else {
+            var _meas$field3;
+
+            (_meas$field3 = meas[field]) !== null && _meas$field3 !== void 0 ? _meas$field3 : meas[field] = {};
+            meas[field][op] = new Set([as ? as : vgField(s, {
+              forAs: true
+            })]);
+          }
+        }
+      }
+
+      for (const s of (_t$groupby = t.groupby) !== null && _t$groupby !== void 0 ? _t$groupby : []) {
+        var _t$groupby;
+
+        dims.add(s);
+      }
+
+      if (dims.size + keys(meas).length === 0) {
+        return null;
+      }
+
+      return new AggregateNode(parent, dims, meas);
+    }
+
+    merge(other) {
+      if (setEqual(this.dimensions, other.dimensions)) {
+        mergeMeasures(this.measures, other.measures);
+        return true;
+      }
+
+      debug('different dimensions, cannot merge');
+      return false;
+    }
+
+    addDimensions(fields) {
+      fields.forEach(this.dimensions.add, this.dimensions);
+    }
+
+    dependentFields() {
+      return new Set([...this.dimensions, ...keys(this.measures)]);
+    }
+
+    producedFields() {
+      const out = new Set();
+
+      for (const field of keys(this.measures)) {
+        for (const op of keys(this.measures[field])) {
+          const m = this.measures[field][op];
+
+          if (m.size === 0) {
+            out.add("".concat(op, "_").concat(field));
+          } else {
+            m.forEach(out.add, out);
+          }
+        }
+      }
+
+      return out;
+    }
+
+    hash() {
+      return "Aggregate ".concat(hash({
+        dimensions: this.dimensions,
+        measures: this.measures
+      }));
+    }
+
+    assemble() {
+      const ops = [];
+      const fields = [];
+      const as = [];
+
+      for (const field of keys(this.measures)) {
+        for (const op of keys(this.measures[field])) {
+          for (const alias of this.measures[field][op]) {
+            as.push(alias);
+            ops.push(op);
+            fields.push(field === '*' ? null : replacePathInField(field));
+          }
+        }
+      }
+
+      const result = {
+        type: 'aggregate',
+        groupby: [...this.dimensions].map(replacePathInField),
+        ops,
+        fields,
+        as
+      };
+      return result;
+    }
+
+  }
+
+  /**
+   * A node that helps us track what fields we are faceting by.
+   */
+  class FacetNode extends DataFlowNode {
+    /**
+     * @param model The facet model.
+     * @param name The name that this facet source will have.
+     * @param data The source data for this facet data.
+     */
+    constructor(parent, model, name, data) {
+      super(parent);
+      this.model = model;
+      this.name = name;
+      this.data = data;
+
+      _defineProperty(this, "column", void 0);
+
+      _defineProperty(this, "row", void 0);
+
+      _defineProperty(this, "facet", void 0);
+
+      _defineProperty(this, "childModel", void 0);
+
+      for (const channel of FACET_CHANNELS) {
+        const fieldDef = model.facet[channel];
+
+        if (fieldDef) {
+          const {
+            bin,
+            sort
+          } = fieldDef;
+          this[channel] = {
+            name: model.getName("".concat(channel, "_domain")),
+            fields: [vgField(fieldDef), ...(isBinning(bin) ? [vgField(fieldDef, {
+              binSuffix: 'end'
+            })] : [])],
+            ...(isSortField(sort) ? {
+              sortField: sort
+            } : vega.isArray(sort) ? {
+              sortIndexField: sortArrayIndexField(fieldDef, channel)
+            } : {})
+          };
+        }
+      }
+
+      this.childModel = model.child;
+    }
+
+    hash() {
+      let out = "Facet";
+
+      for (const channel of FACET_CHANNELS) {
+        if (this[channel]) {
+          out += " ".concat(channel.charAt(0), ":").concat(hash(this[channel]));
+        }
+      }
+
+      return out;
+    }
+
+    get fields() {
+      const f = [];
+
+      for (const channel of FACET_CHANNELS) {
+        var _this$channel;
+
+        if ((_this$channel = this[channel]) !== null && _this$channel !== void 0 && _this$channel.fields) {
+          f.push(...this[channel].fields);
+        }
+      }
+
+      return f;
+    }
+
+    dependentFields() {
+      const depFields = new Set(this.fields);
+
+      for (const channel of FACET_CHANNELS) {
+        if (this[channel]) {
+          if (this[channel].sortField) {
+            depFields.add(this[channel].sortField.field);
+          }
+
+          if (this[channel].sortIndexField) {
+            depFields.add(this[channel].sortIndexField);
+          }
+        }
+      }
+
+      return depFields;
+    }
+
+    producedFields() {
+      return new Set(); // facet does not produce any new fields
+    }
+    /**
+     * The name to reference this source is its name.
+     */
+
+
+    getSource() {
+      return this.name;
+    }
+
+    getChildIndependentFieldsWithStep() {
+      const childIndependentFieldsWithStep = {};
+
+      for (const channel of POSITION_SCALE_CHANNELS) {
+        const childScaleComponent = this.childModel.component.scales[channel];
+
+        if (childScaleComponent && !childScaleComponent.merged) {
+          // independent scale
+          const type = childScaleComponent.get('type');
+          const range = childScaleComponent.get('range');
+
+          if (hasDiscreteDomain(type) && isVgRangeStep(range)) {
+            const domain = assembleDomain(this.childModel, channel);
+            const field = getFieldFromDomain(domain);
+
+            if (field) {
+              childIndependentFieldsWithStep[channel] = field;
+            } else {
+              warn(unknownField(channel));
+            }
+          }
+        }
+      }
+
+      return childIndependentFieldsWithStep;
+    }
+
+    assembleRowColumnHeaderData(channel, crossedDataName, childIndependentFieldsWithStep) {
+      const childChannel = {
+        row: 'y',
+        column: 'x',
+        facet: undefined
+      }[channel];
+      const fields = [];
+      const ops = [];
+      const as = [];
+
+      if (childChannel && childIndependentFieldsWithStep && childIndependentFieldsWithStep[childChannel]) {
+        if (crossedDataName) {
+          // If there is a crossed data, calculate max
+          fields.push("distinct_".concat(childIndependentFieldsWithStep[childChannel]));
+          ops.push('max');
+        } else {
+          // If there is no crossed data, just calculate distinct
+          fields.push(childIndependentFieldsWithStep[childChannel]);
+          ops.push('distinct');
+        } // Although it is technically a max, just name it distinct so it's easier to refer to it
+
+
+        as.push("distinct_".concat(childIndependentFieldsWithStep[childChannel]));
+      }
+
+      const {
+        sortField,
+        sortIndexField
+      } = this[channel];
+
+      if (sortField) {
+        const {
+          op = DEFAULT_SORT_OP,
+          field
+        } = sortField;
+        fields.push(field);
+        ops.push(op);
+        as.push(vgField(sortField, {
+          forAs: true
+        }));
+      } else if (sortIndexField) {
+        fields.push(sortIndexField);
+        ops.push('max');
+        as.push(sortIndexField);
+      }
+
+      return {
+        name: this[channel].name,
+        // Use data from the crossed one if it exist
+        source: crossedDataName !== null && crossedDataName !== void 0 ? crossedDataName : this.data,
+        transform: [{
+          type: 'aggregate',
+          groupby: this[channel].fields,
+          ...(fields.length ? {
+            fields,
+            ops,
+            as
+          } : {})
+        }]
+      };
+    }
+
+    assembleFacetHeaderData(childIndependentFieldsWithStep) {
+      const {
+        columns
+      } = this.model.layout;
+      const {
+        layoutHeaders
+      } = this.model.component;
+      const data = [];
+      const hasSharedAxis = {};
+
+      for (const headerChannel of HEADER_CHANNELS) {
+        for (const headerType of HEADER_TYPES) {
+          var _ref;
+
+          const headers = (_ref = layoutHeaders[headerChannel] && layoutHeaders[headerChannel][headerType]) !== null && _ref !== void 0 ? _ref : [];
+
+          for (const header of headers) {
+            var _header$axes;
+
+            if (((_header$axes = header.axes) === null || _header$axes === void 0 ? void 0 : _header$axes.length) > 0) {
+              hasSharedAxis[headerChannel] = true;
+              break;
+            }
+          }
+        }
+
+        if (hasSharedAxis[headerChannel]) {
+          const cardinality = "length(data(\"".concat(this.facet.name, "\"))");
+          const stop = headerChannel === 'row' ? columns ? {
+            signal: "ceil(".concat(cardinality, " / ").concat(columns, ")")
+          } : 1 : columns ? {
+            signal: "min(".concat(cardinality, ", ").concat(columns, ")")
+          } : {
+            signal: cardinality
+          };
+          data.push({
+            name: "".concat(this.facet.name, "_").concat(headerChannel),
+            transform: [{
+              type: 'sequence',
+              start: 0,
+              stop
+            }]
+          });
+        }
+      }
+
+      const {
+        row,
+        column
+      } = hasSharedAxis;
+
+      if (row || column) {
+        data.unshift(this.assembleRowColumnHeaderData('facet', null, childIndependentFieldsWithStep));
+      }
+
+      return data;
+    }
+
+    assemble() {
+      const data = [];
+      let crossedDataName = null;
+      const childIndependentFieldsWithStep = this.getChildIndependentFieldsWithStep();
+      const {
+        column,
+        row,
+        facet
+      } = this;
+
+      if (column && row && (childIndependentFieldsWithStep.x || childIndependentFieldsWithStep.y)) {
+        var _childIndependentFiel, _childIndependentFiel2;
+
+        // Need to create a cross dataset to correctly calculate cardinality
+        crossedDataName = "cross_".concat(this.column.name, "_").concat(this.row.name);
+        const fields = [].concat((_childIndependentFiel = childIndependentFieldsWithStep.x) !== null && _childIndependentFiel !== void 0 ? _childIndependentFiel : [], (_childIndependentFiel2 = childIndependentFieldsWithStep.y) !== null && _childIndependentFiel2 !== void 0 ? _childIndependentFiel2 : []);
+        const ops = fields.map(() => 'distinct');
+        data.push({
+          name: crossedDataName,
+          source: this.data,
+          transform: [{
+            type: 'aggregate',
+            groupby: this.fields,
+            fields,
+            ops
+          }]
+        });
+      }
+
+      for (const channel of [COLUMN, ROW]) {
+        if (this[channel]) {
+          data.push(this.assembleRowColumnHeaderData(channel, crossedDataName, childIndependentFieldsWithStep));
+        }
+      }
+
+      if (facet) {
+        const facetData = this.assembleFacetHeaderData(childIndependentFieldsWithStep);
+
+        if (facetData) {
+          data.push(...facetData);
+        }
+      }
+
+      return data;
+    }
+
+  }
+
+  /**
+   * Remove quotes from a string.
+   */
+
+  function unquote(pattern) {
+    if (pattern.startsWith("'") && pattern.endsWith("'") || pattern.startsWith('"') && pattern.endsWith('"')) {
+      return pattern.slice(1, -1);
+    }
+
+    return pattern;
+  }
+  /**
+   * @param field The field.
+   * @param parse What to parse the field as.
+   */
+
+
+  function parseExpression(field, parse) {
+    const f = accessPathWithDatum(field);
+
+    if (parse === 'number') {
+      return "toNumber(".concat(f, ")");
+    } else if (parse === 'boolean') {
+      return "toBoolean(".concat(f, ")");
+    } else if (parse === 'string') {
+      return "toString(".concat(f, ")");
+    } else if (parse === 'date') {
+      return "toDate(".concat(f, ")");
+    } else if (parse === 'flatten') {
+      return f;
+    } else if (parse.startsWith('date:')) {
+      const specifier = unquote(parse.slice(5, parse.length));
+      return "timeParse(".concat(f, ",'").concat(specifier, "')");
+    } else if (parse.startsWith('utc:')) {
+      const specifier = unquote(parse.slice(4, parse.length));
+      return "utcParse(".concat(f, ",'").concat(specifier, "')");
+    } else {
+      warn(unrecognizedParse(parse));
+      return null;
+    }
+  }
+
+  function getImplicitFromFilterTransform(transform) {
+    const implicit = {};
+    forEachLeaf(transform.filter, filter => {
+      if (isFieldPredicate(filter)) {
+        // Automatically add a parse node for filters with filter objects
+        let val = null; // For EqualFilter, just use the equal property.
+        // For RangeFilter and OneOfFilter, all array members should have
+        // the same type, so we only use the first one.
+
+        if (isFieldEqualPredicate(filter)) {
+          val = signalRefOrValue(filter.equal);
+        } else if (isFieldLTEPredicate(filter)) {
+          val = signalRefOrValue(filter.lte);
+        } else if (isFieldLTPredicate(filter)) {
+          val = signalRefOrValue(filter.lt);
+        } else if (isFieldGTPredicate(filter)) {
+          val = signalRefOrValue(filter.gt);
+        } else if (isFieldGTEPredicate(filter)) {
+          val = signalRefOrValue(filter.gte);
+        } else if (isFieldRangePredicate(filter)) {
+          val = filter.range[0];
+        } else if (isFieldOneOfPredicate(filter)) {
+          var _filter$oneOf;
+
+          val = ((_filter$oneOf = filter.oneOf) !== null && _filter$oneOf !== void 0 ? _filter$oneOf : filter['in'])[0];
+        } // else -- for filter expression, we can't infer anything
+
+
+        if (val) {
+          if (isDateTime(val)) {
+            implicit[filter.field] = 'date';
+          } else if (vega.isNumber(val)) {
+            implicit[filter.field] = 'number';
+          } else if (vega.isString(val)) {
+            implicit[filter.field] = 'string';
+          }
+        }
+
+        if (filter.timeUnit) {
+          implicit[filter.field] = 'date';
+        }
+      }
+    });
+    return implicit;
+  }
+  /**
+   * Creates a parse node for implicit parsing from a model and updates ancestorParse.
+   */
+
+  function getImplicitFromEncoding(model) {
+    const implicit = {};
+
+    function add(fieldDef) {
+      if (isFieldOrDatumDefForTimeFormat(fieldDef)) {
+        implicit[fieldDef.field] = 'date';
+      } else if (fieldDef.type === 'quantitative' && isMinMaxOp(fieldDef.aggregate) // we need to parse numbers to support correct min and max
+      ) {
+        implicit[fieldDef.field] = 'number';
+      } else if (accessPathDepth(fieldDef.field) > 1) {
+        // For non-date/non-number (strings and booleans), derive a flattened field for a referenced nested field.
+        // (Parsing numbers / dates already flattens numeric and temporal fields.)
+        if (!(fieldDef.field in implicit)) {
+          implicit[fieldDef.field] = 'flatten';
+        }
+      } else if (isScaleFieldDef(fieldDef) && isSortField(fieldDef.sort) && accessPathDepth(fieldDef.sort.field) > 1) {
+        // Flatten fields that we sort by but that are not otherwise flattened.
+        if (!(fieldDef.sort.field in implicit)) {
+          implicit[fieldDef.sort.field] = 'flatten';
+        }
+      }
+    }
+
+    if (isUnitModel(model) || isFacetModel(model)) {
+      // Parse encoded fields
+      model.forEachFieldDef((fieldDef, channel) => {
+        if (isTypedFieldDef(fieldDef)) {
+          add(fieldDef);
+        } else {
+          const mainChannel = getMainRangeChannel(channel);
+          const mainFieldDef = model.fieldDef(mainChannel);
+          add({ ...fieldDef,
+            type: mainFieldDef.type
+          });
+        }
+      });
+    } // Parse quantitative dimension fields of path marks as numbers so that we sort them correctly.
+
+
+    if (isUnitModel(model)) {
+      const {
+        mark,
+        markDef,
+        encoding
+      } = model;
+
+      if (isPathMark(mark) && // No need to sort by dimension if we have a connected scatterplot (order channel is present)
+      !model.encoding.order) {
+        const dimensionChannel = markDef.orient === 'horizontal' ? 'y' : 'x';
+        const dimensionChannelDef = encoding[dimensionChannel];
+
+        if (isFieldDef(dimensionChannelDef) && dimensionChannelDef.type === 'quantitative' && !(dimensionChannelDef.field in implicit)) {
+          implicit[dimensionChannelDef.field] = 'number';
+        }
+      }
+    }
+
+    return implicit;
+  }
+  /**
+   * Creates a parse node for implicit parsing from a model and updates ancestorParse.
+   */
+
+  function getImplicitFromSelection(model) {
+    const implicit = {};
+
+    if (isUnitModel(model) && model.component.selection) {
+      for (const name of keys(model.component.selection)) {
+        const selCmpt = model.component.selection[name];
+
+        for (const proj of selCmpt.project.items) {
+          if (!proj.channel && accessPathDepth(proj.field) > 1) {
+            implicit[proj.field] = 'flatten';
+          }
+        }
+      }
+    }
+
+    return implicit;
+  }
+  class ParseNode extends DataFlowNode {
+    clone() {
+      return new ParseNode(null, duplicate(this._parse));
+    }
+
+    constructor(parent, parse) {
+      super(parent);
+
+      _defineProperty(this, "_parse", void 0);
+
+      this._parse = parse;
+    }
+
+    hash() {
+      return "Parse ".concat(hash(this._parse));
+    }
+    /**
+     * Creates a parse node from a data.format.parse and updates ancestorParse.
+     */
+
+
+    static makeExplicit(parent, model, ancestorParse) {
+      var _data$format;
+
+      // Custom parse
+      let explicit = {};
+      const data = model.data;
+
+      if (!isGenerator(data) && data !== null && data !== void 0 && (_data$format = data.format) !== null && _data$format !== void 0 && _data$format.parse) {
+        explicit = data.format.parse;
+      }
+
+      return this.makeWithAncestors(parent, explicit, {}, ancestorParse);
+    }
+    /**
+     * Creates a parse node from "explicit" parse and "implicit" parse and updates ancestorParse.
+     */
+
+
+    static makeWithAncestors(parent, explicit, implicit, ancestorParse) {
+      // We should not parse what has already been parsed in a parent (explicitly or implicitly) or what has been derived (maked as "derived"). We also don't need to flatten a field that has already been parsed.
+      for (const field of keys(implicit)) {
+        const parsedAs = ancestorParse.getWithExplicit(field);
+
+        if (parsedAs.value !== undefined) {
+          // We always ignore derived fields even if they are implicitly defined because we expect users to create the right types.
+          if (parsedAs.explicit || parsedAs.value === implicit[field] || parsedAs.value === 'derived' || implicit[field] === 'flatten') {
+            delete implicit[field];
+          } else {
+            warn(differentParse(field, implicit[field], parsedAs.value));
+          }
+        }
+      }
+
+      for (const field of keys(explicit)) {
+        const parsedAs = ancestorParse.get(field);
+
+        if (parsedAs !== undefined) {
+          // Don't parse a field again if it has been parsed with the same type already.
+          if (parsedAs === explicit[field]) {
+            delete explicit[field];
+          } else {
+            warn(differentParse(field, explicit[field], parsedAs));
+          }
+        }
+      }
+
+      const parse = new Split(explicit, implicit); // add the format parse from this model so that children don't parse the same field again
+
+      ancestorParse.copyAll(parse); // copy only non-null parses
+
+      const p = {};
+
+      for (const key of keys(parse.combine())) {
+        const val = parse.get(key);
+
+        if (val !== null) {
+          p[key] = val;
+        }
+      }
+
+      if (keys(p).length === 0 || ancestorParse.parseNothing) {
+        return null;
+      }
+
+      return new ParseNode(parent, p);
+    }
+
+    get parse() {
+      return this._parse;
+    }
+
+    merge(other) {
+      this._parse = { ...this._parse,
+        ...other.parse
+      };
+      other.remove();
+    }
+    /**
+     * Assemble an object for Vega's format.parse property.
+     */
+
+
+    assembleFormatParse() {
+      const formatParse = {};
+
+      for (const field of keys(this._parse)) {
+        const p = this._parse[field];
+
+        if (accessPathDepth(field) === 1) {
+          formatParse[field] = p;
+        }
+      }
+
+      return formatParse;
+    } // format parse depends and produces all fields in its parse
+
+
+    producedFields() {
+      return new Set(keys(this._parse));
+    }
+
+    dependentFields() {
+      return new Set(keys(this._parse));
+    }
+
+    assembleTransforms() {
+      let onlyNested = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
+      return keys(this._parse).filter(field => onlyNested ? accessPathDepth(field) > 1 : true).map(field => {
+        const expr = parseExpression(field, this._parse[field]);
+
+        if (!expr) {
+          return null;
+        }
+
+        const formula = {
+          type: 'formula',
+          expr,
+          as: removePathFromField(field) // Vega output is always flattened
+
+        };
+        return formula;
+      }).filter(t => t !== null);
+    }
+
+  }
+
+  class IdentifierNode extends DataFlowNode {
+    clone() {
+      return new IdentifierNode(null);
+    }
+
+    constructor(parent) {
+      super(parent);
+    }
+
+    dependentFields() {
+      return new Set();
+    }
+
+    producedFields() {
+      return new Set([SELECTION_ID]);
+    }
+
+    hash() {
+      return 'Identifier';
+    }
+
+    assemble() {
+      return {
+        type: 'identifier',
+        as: SELECTION_ID
+      };
+    }
+
+  }
+
+  class GraticuleNode extends DataFlowNode {
+    clone() {
+      return new GraticuleNode(null, this.params);
+    }
+
+    constructor(parent, params) {
+      super(parent);
+      this.params = params;
+    }
+
+    dependentFields() {
+      return new Set();
+    }
+
+    producedFields() {
+      return undefined; // there should never be a node before graticule
+    }
+
+    hash() {
+      return "Graticule ".concat(hash(this.params));
+    }
+
+    assemble() {
+      return {
+        type: 'graticule',
+        ...(this.params === true ? {} : this.params)
+      };
+    }
+
+  }
+
+  class SequenceNode extends DataFlowNode {
+    clone() {
+      return new SequenceNode(null, this.params);
+    }
+
+    constructor(parent, params) {
+      super(parent);
+      this.params = params;
+    }
+
+    dependentFields() {
+      return new Set();
+    }
+
+    producedFields() {
+      var _this$params$as;
+
+      return new Set([(_this$params$as = this.params.as) !== null && _this$params$as !== void 0 ? _this$params$as : 'data']);
+    }
+
+    hash() {
+      return "Hash ".concat(hash(this.params));
+    }
+
+    assemble() {
+      return {
+        type: 'sequence',
+        ...this.params
+      };
+    }
+
+  }
+
+  class SourceNode extends DataFlowNode {
+    constructor(data) {
+      var _data;
+
+      super(null); // source cannot have parent
+
+      _defineProperty(this, "_data", void 0);
+
+      _defineProperty(this, "_name", void 0);
+
+      _defineProperty(this, "_generator", void 0);
+
+      (_data = data) !== null && _data !== void 0 ? _data : data = {
+        name: 'source'
+      };
+      let format;
+
+      if (!isGenerator(data)) {
+        format = data.format ? { ...omit(data.format, ['parse'])
+        } : {};
+      }
+
+      if (isInlineData(data)) {
+        this._data = {
+          values: data.values
+        };
+      } else if (isUrlData(data)) {
+        this._data = {
+          url: data.url
+        };
+
+        if (!format.type) {
+          // Extract extension from URL using snippet from
+          // http://stackoverflow.com/questions/680929/how-to-extract-extension-from-filename-string-in-javascript
+          let defaultExtension = /(?:\.([^.]+))?$/.exec(data.url)[1];
+
+          if (!contains(['json', 'csv', 'tsv', 'dsv', 'topojson'], defaultExtension)) {
+            defaultExtension = 'json';
+          } // defaultExtension has type string but we ensure that it is DataFormatType above
+
+
+          format.type = defaultExtension;
+        }
+      } else if (isSphereGenerator(data)) {
+        // hardwire GeoJSON sphere data into output specification
+        this._data = {
+          values: [{
+            type: 'Sphere'
+          }]
+        };
+      } else if (isNamedData(data) || isGenerator(data)) {
+        this._data = {};
+      } // set flag to check if generator
+
+
+      this._generator = isGenerator(data); // any dataset can be named
+
+      if (data.name) {
+        this._name = data.name;
+      }
+
+      if (format && !isEmpty(format)) {
+        this._data.format = format;
+      }
+    }
+
+    dependentFields() {
+      return new Set();
+    }
+
+    producedFields() {
+      return undefined; // we don't know what this source produces
+    }
+
+    get data() {
+      return this._data;
+    }
+
+    hasName() {
+      return !!this._name;
+    }
+
+    get isGenerator() {
+      return this._generator;
+    }
+
+    get dataName() {
+      return this._name;
+    }
+
+    set dataName(name) {
+      this._name = name;
+    }
+
+    set parent(parent) {
+      throw new Error('Source nodes have to be roots.');
+    }
+
+    remove() {
+      throw new Error('Source nodes are roots and cannot be removed.');
+    }
+
+    hash() {
+      throw new Error('Cannot hash sources');
+    }
+
+    assemble() {
+      return {
+        name: this._name,
+        ...this._data,
+        transform: []
+      };
+    }
+
+  }
+
+  /**
+   * Whether this dataflow node is the source of the dataflow that produces data i.e. a source or a generator.
+   */
+
+  function isDataSourceNode(node) {
+    return node instanceof SourceNode || node instanceof GraticuleNode || node instanceof SequenceNode;
+  }
+  /**
+   * Abstract base class for Dataflow optimizers.
+   * Contains only mutation handling logic. Subclasses need to implement iteration logic.
+   */
+
+  var _modified = /*#__PURE__*/new WeakMap();
+
+  class Optimizer {
+    constructor() {
+      _classPrivateFieldInitSpec(this, _modified, {
+        writable: true,
+        value: void 0
+      });
+
+      _classPrivateFieldSet(this, _modified, false);
+    } // Once true, #modified is never set to false
+
+
+    setModified() {
+      _classPrivateFieldSet(this, _modified, true);
+    }
+
+    get modifiedFlag() {
+      return _classPrivateFieldGet(this, _modified);
+    }
+    /**
+     * Run the optimization for the tree with the provided root.
+     */
+
+
+  }
+  /**
+   * Starts from a node and runs the optimization function (the "run" method) upwards to the root,
+   * depending on the continue and modified flag values returned by the optimization function.
+   */
+
+  class BottomUpOptimizer extends Optimizer {
+    /**
+     * Run the optimizer at the node. This method should not change the parent of the passed in node (it should only affect children).
+     */
+
+    /**
+     * Compute a map of node depths that we can use to determine a topological sort order.
+     */
+    getNodeDepths(node, depth, depths) {
+      depths.set(node, depth);
+
+      for (const child of node.children) {
+        this.getNodeDepths(child, depth + 1, depths);
+      }
+
+      return depths;
+    }
+    /**
+     * Run the optimizer on all nodes starting from the leaves.
+     */
+
+
+    optimize(node) {
+      const depths = this.getNodeDepths(node, 0, new Map());
+      const topologicalSort = [...depths.entries()].sort((a, b) => b[1] - a[1]);
+
+      for (const tuple of topologicalSort) {
+        this.run(tuple[0]);
+      }
+
+      return this.modifiedFlag;
+    }
+
+  }
+  /**
+   * The optimizer function (the "run" method), is invoked on the given node and then continues recursively.
+   */
+
+  class TopDownOptimizer extends Optimizer {
+    /**
+     * Run the optimizer at the node.
+     */
+
+    /**
+     * Run the optimizer depth first on all nodes starting from the roots.
+     */
+    optimize(node) {
+      this.run(node);
+
+      for (const child of node.children) {
+        this.optimize(child);
+      }
+
+      return this.modifiedFlag;
+    }
+
+  }
+
+  /**
+   * Merge identical nodes at forks by comparing hashes.
+   *
+   * Does not need to iterate from leaves so we implement this with recursion as it's a bit simpler.
+   */
+
+  class MergeIdenticalNodes extends TopDownOptimizer {
+    mergeNodes(parent, nodes) {
+      const mergedNode = nodes.shift();
+
+      for (const node of nodes) {
+        parent.removeChild(node);
+        node.parent = mergedNode;
+        node.remove();
+      }
+    }
+
+    run(node) {
+      const hashes = node.children.map(x => x.hash());
+      const buckets = {};
+
+      for (let i = 0; i < hashes.length; i++) {
+        if (buckets[hashes[i]] === undefined) {
+          buckets[hashes[i]] = [node.children[i]];
+        } else {
+          buckets[hashes[i]].push(node.children[i]);
+        }
+      }
+
+      for (const k of keys(buckets)) {
+        if (buckets[k].length > 1) {
+          this.setModified();
+          this.mergeNodes(node, buckets[k]);
+        }
+      }
+    }
+
+  }
+  /**
+   * Optimizer that removes identifier nodes that are not needed for selections.
+   */
+
+  class RemoveUnnecessaryIdentifierNodes extends TopDownOptimizer {
+    constructor(model) {
+      super();
+
+      _defineProperty(this, "requiresSelectionId", void 0);
+
+      this.requiresSelectionId = model && requiresSelectionId(model);
+    }
+
+    run(node) {
+      if (node instanceof IdentifierNode) {
+        // Only preserve IdentifierNodes if we have default discrete selections
+        // in our model tree, and if the nodes come after tuple producing nodes.
+        if (!(this.requiresSelectionId && (isDataSourceNode(node.parent) || node.parent instanceof AggregateNode || node.parent instanceof ParseNode))) {
+          this.setModified();
+          node.remove();
+        }
+      }
+    }
+
+  }
+  /**
+   * Removes duplicate time unit nodes (as determined by the name of the output field) that may be generated due to
+   * selections projected over time units. Only keeps the first time unit in any branch.
+   *
+   * This optimizer is a custom top down optimizer that keep track of produced fields in a branch.
+   */
+
+  class RemoveDuplicateTimeUnits extends Optimizer {
+    optimize(node) {
+      this.run(node, new Set());
+      return this.modifiedFlag;
+    }
+
+    run(node, timeUnitFields) {
+      let producedFields = new Set();
+
+      if (node instanceof TimeUnitNode) {
+        producedFields = node.producedFields();
+
+        if (hasIntersection(producedFields, timeUnitFields)) {
+          this.setModified();
+          node.removeFormulas(timeUnitFields);
+
+          if (node.producedFields.length === 0) {
+            node.remove();
+          }
+        }
+      }
+
+      for (const child of node.children) {
+        this.run(child, new Set([...timeUnitFields, ...producedFields]));
+      }
+    }
+
+  }
+  /**
+   * Remove output nodes that are not required.
+   */
+
+  class RemoveUnnecessaryOutputNodes extends TopDownOptimizer {
+    constructor() {
+      super();
+    }
+
+    run(node) {
+      if (node instanceof OutputNode && !node.isRequired()) {
+        this.setModified();
+        node.remove();
+      }
+    }
+
+  }
+  /**
+   * Move parse nodes up to forks and merges them if possible.
+   */
+
+  class MoveParseUp extends BottomUpOptimizer {
+    run(node) {
+      if (isDataSourceNode(node)) {
+        return;
+      }
+
+      if (node.numChildren() > 1) {
+        // Don't move parse further up but continue with parent.
+        return;
+      }
+
+      for (const child of node.children) {
+        if (child instanceof ParseNode) {
+          if (node instanceof ParseNode) {
+            this.setModified();
+            node.merge(child);
+          } else {
+            // Don't swap with nodes that produce something that the parse node depends on (e.g. lookup).
+            if (fieldIntersection(node.producedFields(), child.dependentFields())) {
+              continue;
+            }
+
+            this.setModified();
+            child.swapWithParent();
+          }
+        }
+      }
+
+      return;
+    }
+
+  }
+  /**
+   * Inserts an intermediate ParseNode containing all non-conflicting parse fields and removes the empty ParseNodes.
+   *
+   * We assume that dependent paths that do not have a parse node can be just merged.
+   */
+
+  class MergeParse extends BottomUpOptimizer {
+    run(node) {
+      const originalChildren = [...node.children];
+      const parseChildren = node.children.filter(child => child instanceof ParseNode);
+
+      if (node.numChildren() > 1 && parseChildren.length >= 1) {
+        const commonParse = {};
+        const conflictingParse = new Set();
+
+        for (const parseNode of parseChildren) {
+          const parse = parseNode.parse;
+
+          for (const k of keys(parse)) {
+            if (!(k in commonParse)) {
+              commonParse[k] = parse[k];
+            } else if (commonParse[k] !== parse[k]) {
+              conflictingParse.add(k);
+            }
+          }
+        }
+
+        for (const field of conflictingParse) {
+          delete commonParse[field];
+        }
+
+        if (!isEmpty(commonParse)) {
+          this.setModified();
+          const mergedParseNode = new ParseNode(node, commonParse);
+
+          for (const childNode of originalChildren) {
+            if (childNode instanceof ParseNode) {
+              for (const key of keys(commonParse)) {
+                delete childNode.parse[key];
+              }
+            }
+
+            node.removeChild(childNode);
+            childNode.parent = mergedParseNode; // remove empty parse nodes
+
+            if (childNode instanceof ParseNode && keys(childNode.parse).length === 0) {
+              childNode.remove();
+            }
+          }
+        }
+      }
+    }
+
+  }
+  /**
+   * Repeatedly remove leaf nodes that are not output or facet nodes.
+   * The reason is that we don't need subtrees that don't have any output nodes.
+   * Facet nodes are needed for the row or column domains.
+   */
+
+  class RemoveUnusedSubtrees extends BottomUpOptimizer {
+    run(node) {
+      if (node instanceof OutputNode || node.numChildren() > 0 || node instanceof FacetNode) ; else if (node instanceof SourceNode) ; else {
+        this.setModified();
+        node.remove();
+      }
+    }
+
+  }
+  /**
+   * Merge adjacent time unit nodes.
+   */
+
+  class MergeTimeUnits extends BottomUpOptimizer {
+    run(node) {
+      const timeUnitChildren = node.children.filter(x => x instanceof TimeUnitNode);
+      const combination = timeUnitChildren.pop();
+
+      for (const timeUnit of timeUnitChildren) {
+        this.setModified();
+        combination.merge(timeUnit);
+      }
+    }
+
+  }
+  class MergeAggregates extends BottomUpOptimizer {
+    run(node) {
+      const aggChildren = node.children.filter(child => child instanceof AggregateNode); // Object which we'll use to map the fields which an aggregate is grouped by to
+      // the set of aggregates with that grouping. This is useful as only aggregates
+      // with the same group by can be merged
+
+      const groupedAggregates = {}; // Build groupedAggregates
+
+      for (const agg of aggChildren) {
+        const groupBys = hash(agg.groupBy);
+
+        if (!(groupBys in groupedAggregates)) {
+          groupedAggregates[groupBys] = [];
+        }
+
+        groupedAggregates[groupBys].push(agg);
+      } // Merge aggregateNodes with same key in groupedAggregates
+
+
+      for (const group of keys(groupedAggregates)) {
+        const mergeableAggs = groupedAggregates[group];
+
+        if (mergeableAggs.length > 1) {
+          const mergedAggs = mergeableAggs.pop();
+
+          for (const agg of mergeableAggs) {
+            if (mergedAggs.merge(agg)) {
+              node.removeChild(agg);
+              agg.parent = mergedAggs;
+              agg.remove();
+              this.setModified();
+            }
+          }
+        }
+      }
+    }
+
+  }
+  /**
+   * Merge bin nodes and move them up through forks. Stop at filters, parse, identifier as we want them to stay before the bin node.
+   */
+
+  class MergeBins extends BottomUpOptimizer {
+    constructor(model) {
+      super();
+      this.model = model;
+    }
+
+    run(node) {
+      const moveBinsUp = !(isDataSourceNode(node) || node instanceof FilterNode || node instanceof ParseNode || node instanceof IdentifierNode);
+      const promotableBins = [];
+      const remainingBins = [];
+
+      for (const child of node.children) {
+        if (child instanceof BinNode) {
+          if (moveBinsUp && !fieldIntersection(node.producedFields(), child.dependentFields())) {
+            promotableBins.push(child);
+          } else {
+            remainingBins.push(child);
+          }
+        }
+      }
+
+      if (promotableBins.length > 0) {
+        const promotedBin = promotableBins.pop();
+
+        for (const bin of promotableBins) {
+          promotedBin.merge(bin, this.model.renameSignal.bind(this.model));
+        }
+
+        this.setModified();
+
+        if (node instanceof BinNode) {
+          node.merge(promotedBin, this.model.renameSignal.bind(this.model));
+        } else {
+          promotedBin.swapWithParent();
+        }
+      }
+
+      if (remainingBins.length > 1) {
+        const remainingBin = remainingBins.pop();
+
+        for (const bin of remainingBins) {
+          remainingBin.merge(bin, this.model.renameSignal.bind(this.model));
+        }
+
+        this.setModified();
+      }
+    }
+
+  }
+  /**
+   * This optimizer takes output nodes that are at a fork and moves them before the fork.
+   *
+   * The algorithm iterates over the children and tries to find the last output node in a chain of output nodes.
+   * It then moves all output nodes before that main output node. All other children (and the children of the output nodes)
+   * are inserted after the main output node.
+   */
+
+  class MergeOutputs extends BottomUpOptimizer {
+    run(node) {
+      const children = [...node.children];
+      const hasOutputChild = some(children, child => child instanceof OutputNode);
+
+      if (!hasOutputChild || node.numChildren() <= 1) {
+        return;
+      }
+
+      const otherChildren = []; // The output node we will connect all other nodes to.
+      // Output nodes will be added before the new node, other nodes after.
+
+      let mainOutput;
+
+      for (const child of children) {
+        if (child instanceof OutputNode) {
+          let lastOutput = child;
+
+          while (lastOutput.numChildren() === 1) {
+            const [theChild] = lastOutput.children;
+
+            if (theChild instanceof OutputNode) {
+              lastOutput = theChild;
+            } else {
+              break;
+            }
+          }
+
+          otherChildren.push(...lastOutput.children);
+
+          if (mainOutput) {
+            // Move the output nodes before the mainOutput. We do this by setting
+            // the parent of the first not to the parent of the main output and
+            // the main output's parent to the last output.
+            // note: the child is the first output
+            node.removeChild(child);
+            child.parent = mainOutput.parent;
+            mainOutput.parent.removeChild(mainOutput);
+            mainOutput.parent = lastOutput;
+            this.setModified();
+          } else {
+            mainOutput = lastOutput;
+          }
+        } else {
+          otherChildren.push(child);
+        }
+      }
+
+      if (otherChildren.length) {
+        this.setModified();
+
+        for (const child of otherChildren) {
+          child.parent.removeChild(child);
+          child.parent = mainOutput;
+        }
+      }
+    }
+
+  }
+
+  /**
+   * A class for the join aggregate transform nodes.
+   */
+
+  class JoinAggregateTransformNode extends DataFlowNode {
+    clone() {
+      return new JoinAggregateTransformNode(null, duplicate(this.transform));
+    }
+
+    constructor(parent, transform) {
+      super(parent);
+      this.transform = transform;
+    }
+
+    addDimensions(fields) {
+      this.transform.groupby = unique(this.transform.groupby.concat(fields), d => d);
+    }
+
+    dependentFields() {
+      const out = new Set();
+
+      if (this.transform.groupby) {
+        this.transform.groupby.forEach(out.add, out);
+      }
+
+      this.transform.joinaggregate.map(w => w.field).filter(f => f !== undefined).forEach(out.add, out);
+      return out;
+    }
+
+    producedFields() {
+      return new Set(this.transform.joinaggregate.map(this.getDefaultName));
+    }
+
+    getDefaultName(joinAggregateFieldDef) {
+      var _joinAggregateFieldDe;
+
+      return (_joinAggregateFieldDe = joinAggregateFieldDef.as) !== null && _joinAggregateFieldDe !== void 0 ? _joinAggregateFieldDe : vgField(joinAggregateFieldDef);
+    }
+
+    hash() {
+      return "JoinAggregateTransform ".concat(hash(this.transform));
+    }
+
+    assemble() {
+      const fields = [];
+      const ops = [];
+      const as = [];
+
+      for (const joinaggregate of this.transform.joinaggregate) {
+        ops.push(joinaggregate.op);
+        as.push(this.getDefaultName(joinaggregate));
+        fields.push(joinaggregate.field === undefined ? null : joinaggregate.field);
+      }
+
+      const groupby = this.transform.groupby;
+      return {
+        type: 'joinaggregate',
+        as,
+        ops,
+        fields,
+        ...(groupby !== undefined ? {
+          groupby
+        } : {})
+      };
+    }
+
+  }
+
+  function getStackByFields(model) {
+    return model.stack.stackBy.reduce((fields, by) => {
+      const fieldDef = by.fieldDef;
+
+      const _field = vgField(fieldDef);
+
+      if (_field) {
+        fields.push(_field);
+      }
+
+      return fields;
+    }, []);
+  }
+
+  function isValidAsArray(as) {
+    return vega.isArray(as) && as.every(s => vega.isString(s)) && as.length > 1;
+  }
+
+  class StackNode extends DataFlowNode {
+    clone() {
+      return new StackNode(null, duplicate(this._stack));
+    }
+
+    constructor(parent, stack) {
+      super(parent);
+
+      _defineProperty(this, "_stack", void 0);
+
+      this._stack = stack;
+    }
+
+    static makeFromTransform(parent, stackTransform) {
+      const {
+        stack,
+        groupby,
+        as,
+        offset = 'zero'
+      } = stackTransform;
+      const sortFields = [];
+      const sortOrder = [];
+
+      if (stackTransform.sort !== undefined) {
+        for (const sortField of stackTransform.sort) {
+          sortFields.push(sortField.field);
+          sortOrder.push(getFirstDefined(sortField.order, 'ascending'));
+        }
+      }
+
+      const sort = {
+        field: sortFields,
+        order: sortOrder
+      };
+      let normalizedAs;
+
+      if (isValidAsArray(as)) {
+        normalizedAs = as;
+      } else if (vega.isString(as)) {
+        normalizedAs = [as, "".concat(as, "_end")];
+      } else {
+        normalizedAs = ["".concat(stackTransform.stack, "_start"), "".concat(stackTransform.stack, "_end")];
+      }
+
+      return new StackNode(parent, {
+        dimensionFieldDefs: [],
+        stackField: stack,
+        groupby,
+        offset,
+        sort,
+        facetby: [],
+        as: normalizedAs
+      });
+    }
+
+    static makeFromEncoding(parent, model) {
+      const stackProperties = model.stack;
+      const {
+        encoding
+      } = model;
+
+      if (!stackProperties) {
+        return null;
+      }
+
+      const {
+        groupbyChannels,
+        fieldChannel,
+        offset,
+        impute
+      } = stackProperties;
+      const dimensionFieldDefs = groupbyChannels.map(groupbyChannel => {
+        const cDef = encoding[groupbyChannel];
+        return getFieldDef(cDef);
+      }).filter(def => !!def);
+      const stackby = getStackByFields(model);
+      const orderDef = model.encoding.order;
+      let sort;
+
+      if (vega.isArray(orderDef) || isFieldDef(orderDef)) {
+        sort = sortParams(orderDef);
+      } else {
+        // default = descending by stackFields
+        // FIXME is the default here correct for binned fields?
+        sort = stackby.reduce((s, field) => {
+          s.field.push(field);
+          s.order.push(fieldChannel === 'y' ? 'descending' : 'ascending');
+          return s;
+        }, {
+          field: [],
+          order: []
+        });
+      }
+
+      return new StackNode(parent, {
+        dimensionFieldDefs,
+        stackField: model.vgField(fieldChannel),
+        facetby: [],
+        stackby,
+        sort,
+        offset,
+        impute,
+        as: [model.vgField(fieldChannel, {
+          suffix: 'start',
+          forAs: true
+        }), model.vgField(fieldChannel, {
+          suffix: 'end',
+          forAs: true
+        })]
+      });
+    }
+
+    get stack() {
+      return this._stack;
+    }
+
+    addDimensions(fields) {
+      this._stack.facetby.push(...fields);
+    }
+
+    dependentFields() {
+      const out = new Set();
+      out.add(this._stack.stackField);
+      this.getGroupbyFields().forEach(out.add, out);
+
+      this._stack.facetby.forEach(out.add, out);
+
+      this._stack.sort.field.forEach(out.add, out);
+
+      return out;
+    }
+
+    producedFields() {
+      return new Set(this._stack.as);
+    }
+
+    hash() {
+      return "Stack ".concat(hash(this._stack));
+    }
+
+    getGroupbyFields() {
+      const {
+        dimensionFieldDefs,
+        impute,
+        groupby
+      } = this._stack;
+
+      if (dimensionFieldDefs.length > 0) {
+        return dimensionFieldDefs.map(dimensionFieldDef => {
+          if (dimensionFieldDef.bin) {
+            if (impute) {
+              // For binned group by field with impute, we calculate bin_mid
+              // as we cannot impute two fields simultaneously
+              return [vgField(dimensionFieldDef, {
+                binSuffix: 'mid'
+              })];
+            }
+
+            return [// For binned group by field without impute, we need both bin (start) and bin_end
+            vgField(dimensionFieldDef, {}), vgField(dimensionFieldDef, {
+              binSuffix: 'end'
+            })];
+          }
+
+          return [vgField(dimensionFieldDef)];
+        }).flat();
+      }
+
+      return groupby !== null && groupby !== void 0 ? groupby : [];
+    }
+
+    assemble() {
+      const transform = [];
+      const {
+        facetby,
+        dimensionFieldDefs,
+        stackField: field,
+        stackby,
+        sort,
+        offset,
+        impute,
+        as
+      } = this._stack; // Impute
+
+      if (impute) {
+        for (const dimensionFieldDef of dimensionFieldDefs) {
+          const {
+            bandPosition = 0.5,
+            bin
+          } = dimensionFieldDef;
+
+          if (bin) {
+            // As we can only impute one field at a time, we need to calculate
+            // mid point for a binned field
+            const binStart = vgField(dimensionFieldDef, {
+              expr: 'datum'
+            });
+            const binEnd = vgField(dimensionFieldDef, {
+              expr: 'datum',
+              binSuffix: 'end'
+            });
+            transform.push({
+              type: 'formula',
+              expr: "".concat(bandPosition, "*").concat(binStart, "+").concat(1 - bandPosition, "*").concat(binEnd),
+              as: vgField(dimensionFieldDef, {
+                binSuffix: 'mid',
+                forAs: true
+              })
+            });
+          }
+
+          transform.push({
+            type: 'impute',
+            field,
+            groupby: [...stackby, ...facetby],
+            key: vgField(dimensionFieldDef, {
+              binSuffix: 'mid'
+            }),
+            method: 'value',
+            value: 0
+          });
+        }
+      } // Stack
+
+
+      transform.push({
+        type: 'stack',
+        groupby: [...this.getGroupbyFields(), ...facetby],
+        field,
+        sort,
+        as,
+        offset
+      });
+      return transform;
+    }
+
+  }
+
+  /**
+   * A class for the window transform nodes
+   */
+
+  class WindowTransformNode extends DataFlowNode {
+    clone() {
+      return new WindowTransformNode(null, duplicate(this.transform));
+    }
+
+    constructor(parent, transform) {
+      super(parent);
+      this.transform = transform;
+    }
+
+    addDimensions(fields) {
+      this.transform.groupby = unique(this.transform.groupby.concat(fields), d => d);
+    }
+
+    dependentFields() {
+      var _this$transform$group, _this$transform$sort;
+
+      const out = new Set();
+      ((_this$transform$group = this.transform.groupby) !== null && _this$transform$group !== void 0 ? _this$transform$group : []).forEach(out.add, out);
+      ((_this$transform$sort = this.transform.sort) !== null && _this$transform$sort !== void 0 ? _this$transform$sort : []).forEach(m => out.add(m.field));
+      this.transform.window.map(w => w.field).filter(f => f !== undefined).forEach(out.add, out);
+      return out;
+    }
+
+    producedFields() {
+      return new Set(this.transform.window.map(this.getDefaultName));
+    }
+
+    getDefaultName(windowFieldDef) {
+      var _windowFieldDef$as;
+
+      return (_windowFieldDef$as = windowFieldDef.as) !== null && _windowFieldDef$as !== void 0 ? _windowFieldDef$as : vgField(windowFieldDef);
+    }
+
+    hash() {
+      return "WindowTransform ".concat(hash(this.transform));
+    }
+
+    assemble() {
+      const fields = [];
+      const ops = [];
+      const as = [];
+      const params = [];
+
+      for (const window of this.transform.window) {
+        ops.push(window.op);
+        as.push(this.getDefaultName(window));
+        params.push(window.param === undefined ? null : window.param);
+        fields.push(window.field === undefined ? null : window.field);
+      }
+
+      const frame = this.transform.frame;
+      const groupby = this.transform.groupby;
+
+      if (frame && frame[0] === null && frame[1] === null && ops.every(o => isAggregateOp(o))) {
+        // when the window does not rely on any particular window ops or frame, switch to a simpler and more efficient joinaggregate
+        return {
+          type: 'joinaggregate',
+          as,
+          ops: ops,
+          fields,
+          ...(groupby !== undefined ? {
+            groupby
+          } : {})
+        };
+      }
+
+      const sortFields = [];
+      const sortOrder = [];
+
+      if (this.transform.sort !== undefined) {
+        for (const sortField of this.transform.sort) {
+          var _sortField$order;
+
+          sortFields.push(sortField.field);
+          sortOrder.push((_sortField$order = sortField.order) !== null && _sortField$order !== void 0 ? _sortField$order : 'ascending');
+        }
+      }
+
+      const sort = {
+        field: sortFields,
+        order: sortOrder
+      };
+      const ignorePeers = this.transform.ignorePeers;
+      return {
+        type: 'window',
+        params,
+        as,
+        ops,
+        fields,
+        sort,
+        ...(ignorePeers !== undefined ? {
+          ignorePeers
+        } : {}),
+        ...(groupby !== undefined ? {
+          groupby
+        } : {}),
+        ...(frame !== undefined ? {
+          frame
+        } : {})
+      };
+    }
+
+  }
+
+  /**
+   * Clones the subtree and ignores output nodes except for the leaves, which are renamed.
+   */
+
+  function cloneSubtree(facet) {
+    function clone(node) {
+      if (!(node instanceof FacetNode)) {
+        const copy = node.clone();
+
+        if (copy instanceof OutputNode) {
+          const newName = FACET_SCALE_PREFIX + copy.getSource();
+          copy.setSource(newName);
+          facet.model.component.data.outputNodes[newName] = copy;
+        } else if (copy instanceof AggregateNode || copy instanceof StackNode || copy instanceof WindowTransformNode || copy instanceof JoinAggregateTransformNode) {
+          copy.addDimensions(facet.fields);
+        }
+
+        for (const n of node.children.flatMap(clone)) {
+          n.parent = copy;
+        }
+
+        return [copy];
+      }
+
+      return node.children.flatMap(clone);
+    }
+
+    return clone;
+  }
+  /**
+   * Move facet nodes down to the next fork or output node. Also pull the main output with the facet node.
+   * After moving down the facet node, make a copy of the subtree and make it a child of the main output.
+   */
+
+
+  function moveFacetDown(node) {
+    if (node instanceof FacetNode) {
+      if (node.numChildren() === 1 && !(node.children[0] instanceof OutputNode)) {
+        // move down until we hit a fork or output node
+        const child = node.children[0];
+
+        if (child instanceof AggregateNode || child instanceof StackNode || child instanceof WindowTransformNode || child instanceof JoinAggregateTransformNode) {
+          child.addDimensions(node.fields);
+        }
+
+        child.swapWithParent();
+        moveFacetDown(node);
+      } else {
+        // move main to facet
+        const facetMain = node.model.component.data.main;
+        moveMainDownToFacet(facetMain); // replicate the subtree and place it before the facet's main node
+
+        const cloner = cloneSubtree(node);
+        const copy = node.children.map(cloner).flat();
+
+        for (const c of copy) {
+          c.parent = facetMain;
+        }
+      }
+    } else {
+      node.children.map(moveFacetDown);
+    }
+  }
+
+  function moveMainDownToFacet(node) {
+    if (node instanceof OutputNode && node.type === DataSourceType.Main) {
+      if (node.numChildren() === 1) {
+        const child = node.children[0];
+
+        if (!(child instanceof FacetNode)) {
+          child.swapWithParent();
+          moveMainDownToFacet(node);
+        }
+      }
+    }
+  }
+
+  const FACET_SCALE_PREFIX = 'scale_';
+  const MAX_OPTIMIZATION_RUNS = 5;
+  /**
+   * Iterates over a dataflow graph and checks whether all links are consistent.
+   */
+
+  function checkLinks(nodes) {
+    for (const node of nodes) {
+      for (const child of node.children) {
+        if (child.parent !== node) {
+          // log.error('Dataflow graph is inconsistent.', node, child);
+          return false;
+        }
+      }
+
+      if (!checkLinks(node.children)) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+  /**
+   * Run the specified optimizer on the provided nodes.
+   *
+   * @param optimizer The optimizer instance to run.
+   * @param nodes A set of nodes to optimize.
+   */
+
+  function runOptimizer(optimizer, nodes) {
+    let modified = false;
+
+    for (const node of nodes) {
+      modified = optimizer.optimize(node) || modified;
+    }
+
+    return modified;
+  }
+
+  function optimizationDataflowHelper(dataComponent, model, firstPass) {
+    let roots = dataComponent.sources;
+    let modified = false;
+    modified = runOptimizer(new RemoveUnnecessaryOutputNodes(), roots) || modified;
+    modified = runOptimizer(new RemoveUnnecessaryIdentifierNodes(model), roots) || modified; // remove source nodes that don't have any children because they also don't have output nodes
+
+    roots = roots.filter(r => r.numChildren() > 0);
+    modified = runOptimizer(new RemoveUnusedSubtrees(), roots) || modified;
+    roots = roots.filter(r => r.numChildren() > 0);
+
+    if (!firstPass) {
+      // Only run these optimizations after the optimizer has moved down the facet node.
+      // With this change, we can be more aggressive in the optimizations.
+      modified = runOptimizer(new MoveParseUp(), roots) || modified;
+      modified = runOptimizer(new MergeBins(model), roots) || modified;
+      modified = runOptimizer(new RemoveDuplicateTimeUnits(), roots) || modified;
+      modified = runOptimizer(new MergeParse(), roots) || modified;
+      modified = runOptimizer(new MergeAggregates(), roots) || modified;
+      modified = runOptimizer(new MergeTimeUnits(), roots) || modified;
+      modified = runOptimizer(new MergeIdenticalNodes(), roots) || modified;
+      modified = runOptimizer(new MergeOutputs(), roots) || modified;
+    }
+
+    dataComponent.sources = roots;
+    return modified;
+  }
+  /**
+   * Optimizes the dataflow of the passed in data component.
+   */
+
+
+  function optimizeDataflow(data, model) {
+    // check before optimizations
+    checkLinks(data.sources);
+    let firstPassCounter = 0;
+    let secondPassCounter = 0;
+
+    for (let i = 0; i < MAX_OPTIMIZATION_RUNS; i++) {
+      if (!optimizationDataflowHelper(data, model, true)) {
+        break;
+      }
+
+      firstPassCounter++;
+    } // move facets down and make a copy of the subtree so that we can have scales at the top level
+
+
+    data.sources.map(moveFacetDown);
+
+    for (let i = 0; i < MAX_OPTIMIZATION_RUNS; i++) {
+      if (!optimizationDataflowHelper(data, model, false)) {
+        break;
+      }
+
+      secondPassCounter++;
+    } // check after optimizations
+
+
+    checkLinks(data.sources);
+
+    if (Math.max(firstPassCounter, secondPassCounter) === MAX_OPTIMIZATION_RUNS) {
+      warn("Maximum optimization runs(".concat(MAX_OPTIMIZATION_RUNS, ") reached."));
+    }
+  }
+
+  /**
+   * A class that behaves like a SignalRef but lazily generates the signal.
+   * The provided generator function should use `Model.getSignalName` to use the correct signal name.
+   */
+  class SignalRefWrapper {
+    constructor(exprGenerator) {
+      _defineProperty(this, "signal", void 0);
+
+      Object.defineProperty(this, 'signal', {
+        enumerable: true,
+        get: exprGenerator
+      });
+    }
+
+    // for ts
+    static fromName(rename, signalName) {
+      return new SignalRefWrapper(() => rename(signalName));
+    }
+
+  }
+
+  function parseScaleDomain(model) {
+    if (isUnitModel(model)) {
+      parseUnitScaleDomain(model);
+    } else {
+      parseNonUnitScaleDomain(model);
+    }
+  }
+
+  function parseUnitScaleDomain(model) {
+    const localScaleComponents = model.component.scales;
+
+    for (const channel of keys(localScaleComponents)) {
+      const domains = parseDomainForChannel(model, channel);
+      const localScaleCmpt = localScaleComponents[channel];
+      localScaleCmpt.setWithExplicit('domains', domains);
+      parseSelectionDomain(model, channel);
+
+      if (model.component.data.isFaceted) {
+        // get resolve from closest facet parent as this decides whether we need to refer to cloned subtree or not
+        let facetParent = model;
+
+        while (!isFacetModel(facetParent) && facetParent.parent) {
+          facetParent = facetParent.parent;
+        }
+
+        const resolve = facetParent.component.resolve.scale[channel];
+
+        if (resolve === 'shared') {
+          for (const domain of domains.value) {
+            // Replace the scale domain with data output from a cloned subtree after the facet.
+            if (isDataRefDomain(domain)) {
+              // use data from cloned subtree (which is the same as data but with a prefix added once)
+              domain.data = FACET_SCALE_PREFIX + domain.data.replace(FACET_SCALE_PREFIX, '');
+            }
+          }
+        }
+      }
+    }
+  }
+
+  function parseNonUnitScaleDomain(model) {
+    for (const child of model.children) {
+      parseScaleDomain(child);
+    }
+
+    const localScaleComponents = model.component.scales;
+
+    for (const channel of keys(localScaleComponents)) {
+      let domains;
+      let selectionExtent = null;
+
+      for (const child of model.children) {
+        const childComponent = child.component.scales[channel];
+
+        if (childComponent) {
+          if (domains === undefined) {
+            domains = childComponent.getWithExplicit('domains');
+          } else {
+            domains = mergeValuesWithExplicit(domains, childComponent.getWithExplicit('domains'), 'domains', 'scale', domainsTieBreaker);
+          }
+
+          const se = childComponent.get('selectionExtent');
+
+          if (selectionExtent && se && selectionExtent.param !== se.param) {
+            warn(NEEDS_SAME_SELECTION);
+          }
+
+          selectionExtent = se;
+        }
+      }
+
+      localScaleComponents[channel].setWithExplicit('domains', domains);
+
+      if (selectionExtent) {
+        localScaleComponents[channel].set('selectionExtent', selectionExtent, true);
+      }
+    }
+  }
+  /**
+   * Remove unaggregated domain if it is not applicable
+   * Add unaggregated domain if domain is not specified and config.scale.useUnaggregatedDomain is true.
+   */
+
+
+  function normalizeUnaggregatedDomain(domain, fieldDef, scaleType, scaleConfig) {
+    if (domain === 'unaggregated') {
+      const {
+        valid,
+        reason
+      } = canUseUnaggregatedDomain(fieldDef, scaleType);
+
+      if (!valid) {
+        warn(reason);
+        return undefined;
+      }
+    } else if (domain === undefined && scaleConfig.useUnaggregatedDomain) {
+      // Apply config if domain is not specified.
+      const {
+        valid
+      } = canUseUnaggregatedDomain(fieldDef, scaleType);
+
+      if (valid) {
+        return 'unaggregated';
+      }
+    }
+
+    return domain;
+  }
+
+  function parseDomainForChannel(model, channel) {
+    const scaleType = model.getScaleComponent(channel).get('type');
+    const {
+      encoding
+    } = model;
+    const domain = normalizeUnaggregatedDomain(model.scaleDomain(channel), model.typedFieldDef(channel), scaleType, model.config.scale);
+
+    if (domain !== model.scaleDomain(channel)) {
+      model.specifiedScales[channel] = { ...model.specifiedScales[channel],
+        domain
+      };
+    } // If channel is either X or Y then union them with X2 & Y2 if they exist
+
+
+    if (channel === 'x' && getFieldOrDatumDef(encoding.x2)) {
+      if (getFieldOrDatumDef(encoding.x)) {
+        return mergeValuesWithExplicit(parseSingleChannelDomain(scaleType, domain, model, 'x'), parseSingleChannelDomain(scaleType, domain, model, 'x2'), 'domain', 'scale', domainsTieBreaker);
+      } else {
+        return parseSingleChannelDomain(scaleType, domain, model, 'x2');
+      }
+    } else if (channel === 'y' && getFieldOrDatumDef(encoding.y2)) {
+      if (getFieldOrDatumDef(encoding.y)) {
+        return mergeValuesWithExplicit(parseSingleChannelDomain(scaleType, domain, model, 'y'), parseSingleChannelDomain(scaleType, domain, model, 'y2'), 'domain', 'scale', domainsTieBreaker);
+      } else {
+        return parseSingleChannelDomain(scaleType, domain, model, 'y2');
+      }
+    }
+
+    return parseSingleChannelDomain(scaleType, domain, model, channel);
+  }
+
+  function mapDomainToDataSignal(domain, type, timeUnit) {
+    return domain.map(v => {
+      const data = valueExpr(v, {
+        timeUnit,
+        type
+      });
+      return {
+        signal: "{data: ".concat(data, "}")
+      };
+    });
+  }
+
+  function convertDomainIfItIsDateTime(domain, type, timeUnit) {
+    var _normalizeTimeUnit;
+
+    // explicit value
+    const normalizedTimeUnit = (_normalizeTimeUnit = normalizeTimeUnit(timeUnit)) === null || _normalizeTimeUnit === void 0 ? void 0 : _normalizeTimeUnit.unit;
+
+    if (type === 'temporal' || normalizedTimeUnit) {
+      return mapDomainToDataSignal(domain, type, normalizedTimeUnit);
+    }
+
+    return [domain]; // Date time won't make sense
+  }
+
+  function parseSingleChannelDomain(scaleType, domain, model, channel) {
+    const {
+      encoding
+    } = model;
+    const fieldOrDatumDef = getFieldOrDatumDef(encoding[channel]);
+    const {
+      type
+    } = fieldOrDatumDef;
+    const timeUnit = fieldOrDatumDef['timeUnit'];
+
+    if (isDomainUnionWith(domain)) {
+      const defaultDomain = parseSingleChannelDomain(scaleType, undefined, model, channel);
+      const unionWith = convertDomainIfItIsDateTime(domain.unionWith, type, timeUnit);
+      return makeExplicit([...defaultDomain.value, ...unionWith]);
+    } else if (isSignalRef(domain)) {
+      return makeExplicit([domain]);
+    } else if (domain && domain !== 'unaggregated' && !isParameterDomain(domain)) {
+      return makeExplicit(convertDomainIfItIsDateTime(domain, type, timeUnit));
+    }
+
+    const stack = model.stack;
+
+    if (stack && channel === stack.fieldChannel) {
+      if (stack.offset === 'normalize') {
+        return makeImplicit([[0, 1]]);
+      }
+
+      const data = model.requestDataName(DataSourceType.Main);
+      return makeImplicit([{
+        data,
+        field: model.vgField(channel, {
+          suffix: 'start'
+        })
+      }, {
+        data,
+        field: model.vgField(channel, {
+          suffix: 'end'
+        })
+      }]);
+    }
+
+    const sort = isScaleChannel(channel) && isFieldDef(fieldOrDatumDef) ? domainSort(model, channel, scaleType) : undefined;
+
+    if (isDatumDef(fieldOrDatumDef)) {
+      const d = convertDomainIfItIsDateTime([fieldOrDatumDef.datum], type, timeUnit);
+      return makeImplicit(d);
+    }
+
+    const fieldDef = fieldOrDatumDef; // now we can be sure it's a fieldDef
+
+    if (domain === 'unaggregated') {
+      const data = model.requestDataName(DataSourceType.Main);
+      const {
+        field
+      } = fieldOrDatumDef;
+      return makeImplicit([{
+        data,
+        field: vgField({
+          field,
+          aggregate: 'min'
+        })
+      }, {
+        data,
+        field: vgField({
+          field,
+          aggregate: 'max'
+        })
+      }]);
+    } else if (isBinning(fieldDef.bin)) {
+      if (hasDiscreteDomain(scaleType)) {
+        if (scaleType === 'bin-ordinal') {
+          // we can omit the domain as it is inferred from the `bins` property
+          return makeImplicit([]);
+        } // ordinal bin scale takes domain from bin_range, ordered by bin start
+        // This is useful for both axis-based scale (x/y) and legend-based scale (other channels).
+
+
+        return makeImplicit([{
+          // If sort by aggregation of a specified sort field, we need to use RAW table,
+          // so we can aggregate values for the scale independently from the main aggregation.
+          data: isBoolean(sort) ? model.requestDataName(DataSourceType.Main) : model.requestDataName(DataSourceType.Raw),
+          // Use range if we added it and the scale does not support computing a range as a signal.
+          field: model.vgField(channel, binRequiresRange(fieldDef, channel) ? {
+            binSuffix: 'range'
+          } : {}),
+          // we have to use a sort object if sort = true to make the sort correct by bin start
+          sort: sort === true || !vega.isObject(sort) ? {
+            field: model.vgField(channel, {}),
+            op: 'min' // min or max doesn't matter since we sort by the start of the bin range
+
+          } : sort
+        }]);
+      } else {
+        // continuous scales
+        const {
+          bin
+        } = fieldDef;
+
+        if (isBinning(bin)) {
+          const binSignal = getBinSignalName(model, fieldDef.field, bin);
+          return makeImplicit([new SignalRefWrapper(() => {
+            const signal = model.getSignalName(binSignal);
+            return "[".concat(signal, ".start, ").concat(signal, ".stop]");
+          })]);
+        } else {
+          return makeImplicit([{
+            data: model.requestDataName(DataSourceType.Main),
+            field: model.vgField(channel, {})
+          }]);
+        }
+      }
+    } else if (fieldDef.timeUnit && contains(['time', 'utc'], scaleType) && hasBandEnd(fieldDef, isUnitModel(model) ? model.encoding[getSecondaryRangeChannel(channel)] : undefined, model.markDef, model.config)) {
+      const data = model.requestDataName(DataSourceType.Main);
+      return makeImplicit([{
+        data,
+        field: model.vgField(channel)
+      }, {
+        data,
+        field: model.vgField(channel, {
+          suffix: 'end'
+        })
+      }]);
+    } else if (sort) {
+      return makeImplicit([{
+        // If sort by aggregation of a specified sort field, we need to use RAW table,
+        // so we can aggregate values for the scale independently from the main aggregation.
+        data: isBoolean(sort) ? model.requestDataName(DataSourceType.Main) : model.requestDataName(DataSourceType.Raw),
+        field: model.vgField(channel),
+        sort
+      }]);
+    } else {
+      return makeImplicit([{
+        data: model.requestDataName(DataSourceType.Main),
+        field: model.vgField(channel)
+      }]);
+    }
+  }
+
+  function normalizeSortField(sort, isStackedMeasure) {
+    const {
+      op,
+      field,
+      order
+    } = sort;
+    return {
+      // Apply default op
+      op: op !== null && op !== void 0 ? op : isStackedMeasure ? 'sum' : DEFAULT_SORT_OP,
+      // flatten nested fields
+      ...(field ? {
+        field: replacePathInField(field)
+      } : {}),
+      ...(order ? {
+        order
+      } : {})
+    };
+  }
+
+  function parseSelectionDomain(model, channel) {
+    var _model$fieldDef;
+
+    const scale = model.component.scales[channel];
+    const spec = model.specifiedScales[channel].domain;
+    const bin = (_model$fieldDef = model.fieldDef(channel)) === null || _model$fieldDef === void 0 ? void 0 : _model$fieldDef.bin;
+    const domain = isParameterDomain(spec) && spec;
+    const extent = isBinParams(bin) && isParameterExtent(bin.extent) && bin.extent;
+
+    if (domain || extent) {
+      // As scale parsing occurs before selection parsing, we cannot set
+      // domainRaw directly. So instead, we store the selectionExtent on
+      // the scale component, and then add domainRaw during scale assembly.
+      scale.set('selectionExtent', domain !== null && domain !== void 0 ? domain : extent, true);
+    }
+  }
+
+  function domainSort(model, channel, scaleType) {
+    if (!hasDiscreteDomain(scaleType)) {
+      return undefined;
+    } // save to cast as the only exception is the geojson type for shape, which would not generate a scale
+
+
+    const fieldDef = model.fieldDef(channel);
+    const sort = fieldDef.sort; // if the sort is specified with array, use the derived sort index field
+
+    if (isSortArray(sort)) {
+      return {
+        op: 'min',
+        field: sortArrayIndexField(fieldDef, channel),
+        order: 'ascending'
+      };
+    }
+
+    const {
+      stack
+    } = model;
+    const stackDimensions = stack ? new Set([...stack.groupbyFields, ...stack.stackBy.map(s => s.fieldDef.field)]) : undefined; // Sorted based on an aggregate calculation over a specified sort field (only for ordinal scale)
+
+    if (isSortField(sort)) {
+      const isStackedMeasure = stack && !stackDimensions.has(sort.field);
+      return normalizeSortField(sort, isStackedMeasure);
+    } else if (isSortByEncoding(sort)) {
+      const {
+        encoding,
+        order
+      } = sort;
+      const fieldDefToSortBy = model.fieldDef(encoding);
+      const {
+        aggregate,
+        field
+      } = fieldDefToSortBy;
+      const isStackedMeasure = stack && !stackDimensions.has(field);
+
+      if (isArgminDef(aggregate) || isArgmaxDef(aggregate)) {
+        return normalizeSortField({
+          field: vgField(fieldDefToSortBy),
+          order
+        }, isStackedMeasure);
+      } else if (isAggregateOp(aggregate) || !aggregate) {
+        return normalizeSortField({
+          op: aggregate,
+          // can't be argmin/argmax since we don't support them in encoding field def
+          field,
+          order
+        }, isStackedMeasure);
+      }
+    } else if (sort === 'descending') {
+      return {
+        op: 'min',
+        field: model.vgField(channel),
+        order: 'descending'
+      };
+    } else if (contains(['ascending', undefined
+    /* default =ascending*/
+    ], sort)) {
+      return true;
+    } // sort == null
+
+
+    return undefined;
+  }
+  /**
+   * Determine if a scale can use unaggregated domain.
+   * @return {Boolean} Returns true if all of the following conditions apply:
+   * 1. `scale.domain` is `unaggregated`
+   * 2. Aggregation function is not `count` or `sum`
+   * 3. The scale is quantitative or time scale.
+   */
+
+  function canUseUnaggregatedDomain(fieldDef, scaleType) {
+    const {
+      aggregate,
+      type
+    } = fieldDef;
+
+    if (!aggregate) {
+      return {
+        valid: false,
+        reason: unaggregateDomainHasNoEffectForRawField(fieldDef)
+      };
+    }
+
+    if (vega.isString(aggregate) && !SHARED_DOMAIN_OPS.has(aggregate)) {
+      return {
+        valid: false,
+        reason: unaggregateDomainWithNonSharedDomainOp(aggregate)
+      };
+    }
+
+    if (type === 'quantitative') {
+      if (scaleType === 'log') {
+        return {
+          valid: false,
+          reason: unaggregatedDomainWithLogScale(fieldDef)
+        };
+      }
+    }
+
+    return {
+      valid: true
+    };
+  }
+  /**
+   * Tie breaker for mergeValuesWithExplicit for domains. We concat the specified values.
+   */
+
+  function domainsTieBreaker(v1, v2, property, propertyOf) {
+    if (v1.explicit && v2.explicit) {
+      warn(mergeConflictingDomainProperty(property, propertyOf, v1.value, v2.value));
+    } // If equal score, concat the domains so that we union them later.
+
+
+    return {
+      explicit: v1.explicit,
+      value: [...v1.value, ...v2.value]
+    };
+  }
+  /**
+   * Converts an array of domains to a single Vega scale domain.
+   */
+
+
+  function mergeDomains(domains) {
+    const uniqueDomains = unique(domains.map(domain => {
+      // ignore sort property when computing the unique domains
+      if (isDataRefDomain(domain)) {
+        const {
+          sort: _s,
+          ...domainWithoutSort
+        } = domain;
+        return domainWithoutSort;
+      }
+
+      return domain;
+    }), hash);
+    const sorts = unique(domains.map(d => {
+      if (isDataRefDomain(d)) {
+        const s = d.sort;
+
+        if (s !== undefined && !isBoolean(s)) {
+          if ('op' in s && s.op === 'count') {
+            // let's make sure that if op is count, we don't use a field
+            delete s.field;
+          }
+
+          if (s.order === 'ascending') {
+            // drop order: ascending as it is the default
+            delete s.order;
+          }
+        }
+
+        return s;
+      }
+
+      return undefined;
+    }).filter(s => s !== undefined), hash);
+
+    if (uniqueDomains.length === 0) {
+      return undefined;
+    } else if (uniqueDomains.length === 1) {
+      const domain = domains[0];
+
+      if (isDataRefDomain(domain) && sorts.length > 0) {
+        let sort = sorts[0];
+
+        if (sorts.length > 1) {
+          warn(MORE_THAN_ONE_SORT);
+          sort = true;
+        } else {
+          // Simplify domain sort by removing field and op when the field is the same as the domain field.
+          if (vega.isObject(sort) && 'field' in sort) {
+            const sortField = sort.field;
+
+            if (domain.field === sortField) {
+              sort = sort.order ? {
+                order: sort.order
+              } : true;
+            }
+          }
+        }
+
+        return { ...domain,
+          sort
+        };
+      }
+
+      return domain;
+    } // only keep sort properties that work with unioned domains
+
+
+    const unionDomainSorts = unique(sorts.map(s => {
+      if (isBoolean(s) || !('op' in s) || vega.isString(s.op) && s.op in MULTIDOMAIN_SORT_OP_INDEX) {
+        return s;
+      }
+
+      warn(domainSortDropped(s));
+      return true;
+    }), hash);
+    let sort;
+
+    if (unionDomainSorts.length === 1) {
+      sort = unionDomainSorts[0];
+    } else if (unionDomainSorts.length > 1) {
+      warn(MORE_THAN_ONE_SORT);
+      sort = true;
+    }
+
+    const allData = unique(domains.map(d => {
+      if (isDataRefDomain(d)) {
+        return d.data;
+      }
+
+      return null;
+    }), x => x);
+
+    if (allData.length === 1 && allData[0] !== null) {
+      // create a union domain of different fields with a single data source
+      const domain = {
+        data: allData[0],
+        fields: uniqueDomains.map(d => d.field),
+        ...(sort ? {
+          sort
+        } : {})
+      };
+      return domain;
+    }
+
+    return {
+      fields: uniqueDomains,
+      ...(sort ? {
+        sort
+      } : {})
+    };
+  }
+  /**
+   * Return a field if a scale uses a single field.
+   * Return `undefined` otherwise.
+   */
+
+  function getFieldFromDomain(domain) {
+    if (isDataRefDomain(domain) && vega.isString(domain.field)) {
+      return domain.field;
+    } else if (isDataRefUnionedDomain(domain)) {
+      let field;
+
+      for (const nonUnionDomain of domain.fields) {
+        if (isDataRefDomain(nonUnionDomain) && vega.isString(nonUnionDomain.field)) {
+          if (!field) {
+            field = nonUnionDomain.field;
+          } else if (field !== nonUnionDomain.field) {
+            warn(FACETED_INDEPENDENT_DIFFERENT_SOURCES);
+            return field;
+          }
+        }
+      }
+
+      warn(FACETED_INDEPENDENT_SAME_FIELDS_DIFFERENT_SOURCES);
+      return field;
+    } else if (isFieldRefUnionDomain(domain)) {
+      warn(FACETED_INDEPENDENT_SAME_SOURCE);
+      const field = domain.fields[0];
+      return vega.isString(field) ? field : undefined;
+    }
+
+    return undefined;
+  }
+  function assembleDomain(model, channel) {
+    const scaleComponent = model.component.scales[channel];
+    const domains = scaleComponent.get('domains').map(domain => {
+      // Correct references to data as the original domain's data was determined
+      // in parseScale, which happens before parseData. Thus the original data
+      // reference can be incorrect.
+      if (isDataRefDomain(domain)) {
+        domain.data = model.lookupDataSource(domain.data);
+      }
+
+      return domain;
+    }); // domains is an array that has to be merged into a single vega domain
+
+    return mergeDomains(domains);
+  }
+
+  function assembleScales(model) {
+    if (isLayerModel(model) || isConcatModel(model)) {
+      // For concat and layer, include scales of children too
+      return model.children.reduce((scales, child) => {
+        return scales.concat(assembleScales(child));
+      }, assembleScalesForModel(model));
+    } else {
+      // For facet, child scales would not be included in the parent's scope.
+      // For unit, there is no child.
+      return assembleScalesForModel(model);
+    }
+  }
+  function assembleScalesForModel(model) {
+    return keys(model.component.scales).reduce((scales, channel) => {
+      const scaleComponent = model.component.scales[channel];
+
+      if (scaleComponent.merged) {
+        // Skipped merged scales
+        return scales;
+      }
+
+      const scale = scaleComponent.combine();
+      const {
+        name,
+        type,
+        selectionExtent,
+        domains: _d,
+        range: _r,
+        reverse,
+        ...otherScaleProps
+      } = scale;
+      const range = assembleScaleRange(scale.range, name, channel, model);
+      const domain = assembleDomain(model, channel);
+      const domainRaw = selectionExtent ? assembleSelectionScaleDomain(model, selectionExtent, scaleComponent, domain) : null;
+      scales.push({
+        name,
+        type,
+        ...(domain ? {
+          domain
+        } : {}),
+        ...(domainRaw ? {
+          domainRaw
+        } : {}),
+        range,
+        ...(reverse !== undefined ? {
+          reverse: reverse
+        } : {}),
+        ...otherScaleProps
+      });
+      return scales;
+    }, []);
+  }
+  function assembleScaleRange(scaleRange, scaleName, channel, model) {
+    // add signals to x/y range
+    if (isXorY(channel)) {
+      if (isVgRangeStep(scaleRange)) {
+        // For width/height step, use a signal created in layout assemble instead of a constant step.
+        return {
+          step: {
+            signal: "".concat(scaleName, "_step")
+          }
+        };
+      }
+    } else if (vega.isObject(scaleRange) && isDataRefDomain(scaleRange)) {
+      return { ...scaleRange,
+        data: model.lookupDataSource(scaleRange.data)
+      };
+    }
+
+    return scaleRange;
+  }
+
+  /**
+   * All VgDomain property except domain.
+   * (We exclude domain as we have a special "domains" array that allow us merge them all at once in assemble.)
+   */
+
+  class ScaleComponent extends Split {
+    constructor(name, typeWithExplicit) {
+      super({}, // no initial explicit property
+      {
+        name
+      } // name as initial implicit property
+      );
+
+      _defineProperty(this, "merged", false);
+
+      this.setWithExplicit('type', typeWithExplicit);
+    }
+    /**
+     * Whether the scale definitely includes zero in the domain
+     */
+
+
+    domainDefinitelyIncludesZero() {
+      if (this.get('zero') !== false) {
+        return true;
+      }
+
+      return some(this.get('domains'), d => vega.isArray(d) && d.length === 2 && d[0] <= 0 && d[1] >= 0);
+    }
+
+  }
+
+  const RANGE_PROPERTIES = ['range', 'scheme'];
+  function parseUnitScaleRange(model) {
+    const localScaleComponents = model.component.scales; // use SCALE_CHANNELS instead of scales[channel] to ensure that x, y come first!
+
+    for (const channel of SCALE_CHANNELS) {
+      const localScaleCmpt = localScaleComponents[channel];
+
+      if (!localScaleCmpt) {
+        continue;
+      }
+
+      const rangeWithExplicit = parseRangeForChannel(channel, model);
+      localScaleCmpt.setWithExplicit('range', rangeWithExplicit);
+    }
+  }
+
+  function getBinStepSignal(model, channel) {
+    const fieldDef = model.fieldDef(channel);
+
+    if (fieldDef !== null && fieldDef !== void 0 && fieldDef.bin) {
+      const {
+        bin,
+        field
+      } = fieldDef;
+      const sizeType = getSizeChannel(channel);
+      const sizeSignal = model.getName(sizeType);
+
+      if (vega.isObject(bin) && bin.binned && bin.step !== undefined) {
+        return new SignalRefWrapper(() => {
+          const scaleName = model.scaleName(channel);
+          const binCount = "(domain(\"".concat(scaleName, "\")[1] - domain(\"").concat(scaleName, "\")[0]) / ").concat(bin.step);
+          return "".concat(model.getSignalName(sizeSignal), " / (").concat(binCount, ")");
+        });
+      } else if (isBinning(bin)) {
+        const binSignal = getBinSignalName(model, field, bin); // TODO: extract this to be range step signal
+
+        return new SignalRefWrapper(() => {
+          const updatedName = model.getSignalName(binSignal);
+          const binCount = "(".concat(updatedName, ".stop - ").concat(updatedName, ".start) / ").concat(updatedName, ".step");
+          return "".concat(model.getSignalName(sizeSignal), " / (").concat(binCount, ")");
+        });
+      }
+    }
+
+    return undefined;
+  }
+  /**
+   * Return mixins that includes one of the Vega range types (explicit range, range.step, range.scheme).
+   */
+
+
+  function parseRangeForChannel(channel, model) {
+    const specifiedScale = model.specifiedScales[channel];
+    const {
+      size
+    } = model;
+    const mergedScaleCmpt = model.getScaleComponent(channel);
+    const scaleType = mergedScaleCmpt.get('type'); // Check if any of the range properties is specified.
+    // If so, check if it is compatible and make sure that we only output one of the properties
+
+    for (const property of RANGE_PROPERTIES) {
+      if (specifiedScale[property] !== undefined) {
+        const supportedByScaleType = scaleTypeSupportProperty(scaleType, property);
+        const channelIncompatability = channelScalePropertyIncompatability(channel, property);
+
+        if (!supportedByScaleType) {
+          warn(scalePropertyNotWorkWithScaleType(scaleType, property, channel));
+        } else if (channelIncompatability) {
+          // channel
+          warn(channelIncompatability);
+        } else {
+          switch (property) {
+            case 'range':
+              {
+                const range = specifiedScale.range;
+
+                if (vega.isArray(range)) {
+                  if (isXorY(channel)) {
+                    return makeExplicit(range.map(v => {
+                      if (v === 'width' || v === 'height') {
+                        // get signal for width/height
+                        // Just like default range logic below, we use SignalRefWrapper to account for potential merges and renames.
+                        const sizeSignal = model.getName(v);
+                        const getSignalName = model.getSignalName.bind(model);
+                        return SignalRefWrapper.fromName(getSignalName, sizeSignal);
+                      }
+
+                      return v;
+                    }));
+                  }
+                } else if (vega.isObject(range)) {
+                  return makeExplicit({
+                    data: model.requestDataName(DataSourceType.Main),
+                    field: range.field,
+                    sort: {
+                      op: 'min',
+                      field: model.vgField(channel)
+                    }
+                  });
+                }
+
+                return makeExplicit(range);
+              }
+
+            case 'scheme':
+              return makeExplicit(parseScheme(specifiedScale[property]));
+          }
+        }
+      }
+    }
+
+    const sizeChannel = channel === X || channel === 'xOffset' ? 'width' : 'height';
+    const sizeValue = size[sizeChannel];
+
+    if (isStep(sizeValue)) {
+      if (isXorY(channel)) {
+        if (hasDiscreteDomain(scaleType)) {
+          const step = getPositionStep(sizeValue, model, channel); // Need to be explicit so layer with step wins over layer without step
+
+          if (step) {
+            return makeExplicit({
+              step
+            });
+          }
+        } else {
+          warn(stepDropped(sizeChannel));
+        }
+      } else if (isXorYOffset(channel)) {
+        const positionChannel = channel === XOFFSET ? 'x' : 'y';
+        const positionScaleCmpt = model.getScaleComponent(positionChannel);
+        const positionScaleType = positionScaleCmpt.get('type');
+
+        if (positionScaleType === 'band') {
+          const step = getOffsetStep(sizeValue, scaleType);
+
+          if (step) {
+            return makeExplicit(step);
+          }
+        }
+      }
+    }
+
+    const {
+      rangeMin,
+      rangeMax
+    } = specifiedScale;
+    const d = defaultRange(channel, model);
+
+    if ((rangeMin !== undefined || rangeMax !== undefined) && // it's ok to check just rangeMin's compatibility since rangeMin/rangeMax are the same
+    scaleTypeSupportProperty(scaleType, 'rangeMin') && vega.isArray(d) && d.length === 2) {
+      return makeExplicit([rangeMin !== null && rangeMin !== void 0 ? rangeMin : d[0], rangeMax !== null && rangeMax !== void 0 ? rangeMax : d[1]]);
+    }
+
+    return makeImplicit(d);
+  }
+
+  function parseScheme(scheme) {
+    if (isExtendedScheme(scheme)) {
+      return {
+        scheme: scheme.name,
+        ...omit(scheme, ['name'])
+      };
+    }
+
+    return {
+      scheme
+    };
+  }
+
+  function defaultRange(channel, model) {
+    const {
+      size,
+      config,
+      mark,
+      encoding
+    } = model;
+    const getSignalName = model.getSignalName.bind(model);
+    const {
+      type
+    } = getFieldOrDatumDef(encoding[channel]);
+    const mergedScaleCmpt = model.getScaleComponent(channel);
+    const scaleType = mergedScaleCmpt.get('type');
+    const {
+      domain,
+      domainMid
+    } = model.specifiedScales[channel];
+
+    switch (channel) {
+      case X:
+      case Y:
+        {
+          // If there is no explicit width/height for discrete x/y scales
+          if (contains(['point', 'band'], scaleType)) {
+            const positionSize = getDiscretePositionSize(channel, size, config.view);
+
+            if (isStep(positionSize)) {
+              const step = getPositionStep(positionSize, model, channel);
+              return {
+                step
+              };
+            }
+          } // If step is null, use zero to width or height.
+          // Note that we use SignalRefWrapper to account for potential merges and renames.
+
+
+          const sizeType = getSizeChannel(channel);
+          const sizeSignal = model.getName(sizeType);
+
+          if (channel === Y && hasContinuousDomain(scaleType)) {
+            // For y continuous scale, we have to start from the height as the bottom part has the max value.
+            return [SignalRefWrapper.fromName(getSignalName, sizeSignal), 0];
+          } else {
+            return [0, SignalRefWrapper.fromName(getSignalName, sizeSignal)];
+          }
+        }
+
+      case XOFFSET:
+      case YOFFSET:
+        return getOffsetRange(channel, model, scaleType);
+
+      case SIZE:
+        {
+          // TODO: support custom rangeMin, rangeMax
+          const zero = model.component.scales[channel].get('zero');
+          const rangeMin = sizeRangeMin(mark, zero, config);
+          const rangeMax = sizeRangeMax(mark, size, model, config);
+
+          if (isContinuousToDiscrete(scaleType)) {
+            return interpolateRange(rangeMin, rangeMax, defaultContinuousToDiscreteCount(scaleType, config, domain, channel));
+          } else {
+            return [rangeMin, rangeMax];
+          }
+        }
+
+      case THETA:
+        return [0, Math.PI * 2];
+
+      case ANGLE:
+        // TODO: add config.scale.min/maxAngleDegree (for point and text) and config.scale.min/maxAngleRadian (for arc) once we add arc marks.
+        // (It's weird to add just config.scale.min/maxAngleDegree for now)
+        return [0, 360];
+
+      case RADIUS:
+        {
+          // max radius = half od min(width,height)
+          return [0, new SignalRefWrapper(() => {
+            const w = model.getSignalName('width');
+            const h = model.getSignalName('height');
+            return "min(".concat(w, ",").concat(h, ")/2");
+          })];
+        }
+
+      case STROKEWIDTH:
+        // TODO: support custom rangeMin, rangeMax
+        return [config.scale.minStrokeWidth, config.scale.maxStrokeWidth];
+
+      case STROKEDASH:
+        return [// TODO: add this to Vega's config.range?
+        [1, 0], [4, 2], [2, 1], [1, 1], [1, 2, 4, 2]];
+
+      case SHAPE:
+        return 'symbol';
+
+      case COLOR:
+      case FILL:
+      case STROKE:
+        if (scaleType === 'ordinal') {
+          // Only nominal data uses ordinal scale by default
+          return type === 'nominal' ? 'category' : 'ordinal';
+        } else {
+          if (domainMid !== undefined) {
+            return 'diverging';
+          } else {
+            return mark === 'rect' || mark === 'geoshape' ? 'heatmap' : 'ramp';
+          }
+        }
+
+      case OPACITY:
+      case FILLOPACITY:
+      case STROKEOPACITY:
+        // TODO: support custom rangeMin, rangeMax
+        return [config.scale.minOpacity, config.scale.maxOpacity];
+    }
+  }
+
+  function getPositionStep(step, model, channel) {
+    const {
+      encoding
+    } = model;
+    const mergedScaleCmpt = model.getScaleComponent(channel);
+    const offsetChannel = getOffsetScaleChannel(channel);
+    const offsetDef = encoding[offsetChannel];
+    const stepFor = getStepFor({
+      step,
+      offsetIsDiscrete: isFieldOrDatumDef(offsetDef) && isDiscrete$1(offsetDef.type)
+    });
+
+    if (stepFor === 'offset' && channelHasFieldOrDatum(encoding, offsetChannel)) {
+      var _mergedScaleCmpt$get;
+
+      const offsetScaleCmpt = model.getScaleComponent(offsetChannel);
+      const offsetScaleName = model.scaleName(offsetChannel);
+      let stepCount = "domain('".concat(offsetScaleName, "').length");
+
+      if (offsetScaleCmpt.get('type') === 'band') {
+        var _ref, _offsetScaleCmpt$get, _ref2, _offsetScaleCmpt$get2;
+
+        const offsetPaddingInner = (_ref = (_offsetScaleCmpt$get = offsetScaleCmpt.get('paddingInner')) !== null && _offsetScaleCmpt$get !== void 0 ? _offsetScaleCmpt$get : offsetScaleCmpt.get('padding')) !== null && _ref !== void 0 ? _ref : 0;
+        const offsetPaddingOuter = (_ref2 = (_offsetScaleCmpt$get2 = offsetScaleCmpt.get('paddingOuter')) !== null && _offsetScaleCmpt$get2 !== void 0 ? _offsetScaleCmpt$get2 : offsetScaleCmpt.get('padding')) !== null && _ref2 !== void 0 ? _ref2 : 0;
+        stepCount = "bandspace(".concat(stepCount, ", ").concat(offsetPaddingInner, ", ").concat(offsetPaddingOuter, ")");
+      }
+
+      const paddingInner = (_mergedScaleCmpt$get = mergedScaleCmpt.get('paddingInner')) !== null && _mergedScaleCmpt$get !== void 0 ? _mergedScaleCmpt$get : mergedScaleCmpt.get('padding');
+      return {
+        signal: "".concat(step.step, " * ").concat(stepCount, " / (1-").concat(exprFromSignalRefOrValue(paddingInner), ")")
+      };
+    } else {
+      return step.step;
+    }
+  }
+
+  function getOffsetStep(step, offsetScaleType) {
+    const stepFor = getStepFor({
+      step,
+      offsetIsDiscrete: hasDiscreteDomain(offsetScaleType)
+    });
+
+    if (stepFor === 'offset') {
+      return {
+        step: step.step
+      };
+    }
+
+    return undefined;
+  }
+
+  function getOffsetRange(channel, model, offsetScaleType) {
+    const positionChannel = channel === XOFFSET ? 'x' : 'y';
+    const positionScaleCmpt = model.getScaleComponent(positionChannel);
+    const positionScaleType = positionScaleCmpt.get('type');
+    const positionScaleName = model.scaleName(positionChannel);
+
+    if (positionScaleType === 'band') {
+      const size = getDiscretePositionSize(positionChannel, model.size, model.config.view);
+
+      if (isStep(size)) {
+        // step is for offset
+        const step = getOffsetStep(size, offsetScaleType);
+
+        if (step) {
+          return step;
+        }
+      } // otherwise use the position
+
+
+      return [0, {
+        signal: "bandwidth('".concat(positionScaleName, "')")
+      }];
+    } else {
+      // continuous scale
+      return never("Cannot use ".concat(channel, " scale if ").concat(positionChannel, " scale is not discrete."));
+    }
+  }
+
+  function getDiscretePositionSize(channel, size, viewConfig) {
+    const sizeChannel = channel === X ? 'width' : 'height';
+    const sizeValue = size[sizeChannel];
+
+    if (sizeValue) {
+      return sizeValue;
+    }
+
+    return getViewConfigDiscreteSize(viewConfig, sizeChannel);
+  }
+
+  function defaultContinuousToDiscreteCount(scaleType, config, domain, channel) {
+    switch (scaleType) {
+      case 'quantile':
+        return config.scale.quantileCount;
+
+      case 'quantize':
+        return config.scale.quantizeCount;
+
+      case 'threshold':
+        if (domain !== undefined && vega.isArray(domain)) {
+          return domain.length + 1;
+        } else {
+          warn(domainRequiredForThresholdScale(channel)); // default threshold boundaries for threshold scale since domain has cardinality of 2
+
+          return 3;
+        }
+
+    }
+  }
+  /**
+   * Returns the linear interpolation of the range according to the cardinality
+   *
+   * @param rangeMin start of the range
+   * @param rangeMax end of the range
+   * @param cardinality number of values in the output range
+   */
+
+  function interpolateRange(rangeMin, rangeMax, cardinality) {
+    // always return a signal since it's better to compute the sequence in Vega later
+    const f = () => {
+      const rMax = signalOrStringValue(rangeMax);
+      const rMin = signalOrStringValue(rangeMin);
+      const step = "(".concat(rMax, " - ").concat(rMin, ") / (").concat(cardinality, " - 1)");
+      return "sequence(".concat(rMin, ", ").concat(rMax, " + ").concat(step, ", ").concat(step, ")");
+    };
+
+    if (isSignalRef(rangeMax)) {
+      return new SignalRefWrapper(f);
+    } else {
+      return {
+        signal: f()
+      };
+    }
+  }
+
+  function sizeRangeMin(mark, zero, config) {
+    if (zero) {
+      if (isSignalRef(zero)) {
+        return {
+          signal: "".concat(zero.signal, " ? 0 : ").concat(sizeRangeMin(mark, false, config))
+        };
+      } else {
+        return 0;
+      }
+    }
+
+    switch (mark) {
+      case 'bar':
+      case 'tick':
+        return config.scale.minBandSize;
+
+      case 'line':
+      case 'trail':
+      case 'rule':
+        return config.scale.minStrokeWidth;
+
+      case 'text':
+        return config.scale.minFontSize;
+
+      case 'point':
+      case 'square':
+      case 'circle':
+        return config.scale.minSize;
+    }
+    /* istanbul ignore next: should never reach here */
+    // sizeRangeMin not implemented for the mark
+
+
+    throw new Error(incompatibleChannel('size', mark));
+  }
+
+  const MAX_SIZE_RANGE_STEP_RATIO = 0.95;
+
+  function sizeRangeMax(mark, size, model, config) {
+    const xyStepSignals = {
+      x: getBinStepSignal(model, 'x'),
+      y: getBinStepSignal(model, 'y')
+    };
+
+    switch (mark) {
+      case 'bar':
+      case 'tick':
+        {
+          if (config.scale.maxBandSize !== undefined) {
+            return config.scale.maxBandSize;
+          }
+
+          const min = minXYStep(size, xyStepSignals, config.view);
+
+          if (vega.isNumber(min)) {
+            return min - 1;
+          } else {
+            return new SignalRefWrapper(() => "".concat(min.signal, " - 1"));
+          }
+        }
+
+      case 'line':
+      case 'trail':
+      case 'rule':
+        return config.scale.maxStrokeWidth;
+
+      case 'text':
+        return config.scale.maxFontSize;
+
+      case 'point':
+      case 'square':
+      case 'circle':
+        {
+          if (config.scale.maxSize) {
+            return config.scale.maxSize;
+          }
+
+          const pointStep = minXYStep(size, xyStepSignals, config.view);
+
+          if (vega.isNumber(pointStep)) {
+            return Math.pow(MAX_SIZE_RANGE_STEP_RATIO * pointStep, 2);
+          } else {
+            return new SignalRefWrapper(() => "pow(".concat(MAX_SIZE_RANGE_STEP_RATIO, " * ").concat(pointStep.signal, ", 2)"));
+          }
+        }
+    }
+    /* istanbul ignore next: should never reach here */
+    // sizeRangeMax not implemented for the mark
+
+
+    throw new Error(incompatibleChannel('size', mark));
+  }
+  /**
+   * @returns {number} Range step of x or y or minimum between the two if both are ordinal scale.
+   */
+
+
+  function minXYStep(size, xyStepSignals, viewConfig) {
+    const widthStep = isStep(size.width) ? size.width.step : getViewConfigDiscreteStep(viewConfig, 'width');
+    const heightStep = isStep(size.height) ? size.height.step : getViewConfigDiscreteStep(viewConfig, 'height');
+
+    if (xyStepSignals.x || xyStepSignals.y) {
+      return new SignalRefWrapper(() => {
+        const exprs = [xyStepSignals.x ? xyStepSignals.x.signal : widthStep, xyStepSignals.y ? xyStepSignals.y.signal : heightStep];
+        return "min(".concat(exprs.join(', '), ")");
+      });
+    }
+
+    return Math.min(widthStep, heightStep);
+  }
+
+  function parseScaleProperty(model, property) {
+    if (isUnitModel(model)) {
+      parseUnitScaleProperty(model, property);
+    } else {
+      parseNonUnitScaleProperty(model, property);
+    }
+  }
+
+  function parseUnitScaleProperty(model, property) {
+    const localScaleComponents = model.component.scales;
+    const {
+      config,
+      encoding,
+      markDef,
+      specifiedScales
+    } = model;
+
+    for (const channel of keys(localScaleComponents)) {
+      const specifiedScale = specifiedScales[channel];
+      const localScaleCmpt = localScaleComponents[channel];
+      const mergedScaleCmpt = model.getScaleComponent(channel);
+      const fieldOrDatumDef = getFieldOrDatumDef(encoding[channel]);
+      const specifiedValue = specifiedScale[property];
+      const scaleType = mergedScaleCmpt.get('type');
+      const scalePadding = mergedScaleCmpt.get('padding');
+      const scalePaddingInner = mergedScaleCmpt.get('paddingInner');
+      const supportedByScaleType = scaleTypeSupportProperty(scaleType, property);
+      const channelIncompatability = channelScalePropertyIncompatability(channel, property);
+
+      if (specifiedValue !== undefined) {
+        // If there is a specified value, check if it is compatible with scale type and channel
+        if (!supportedByScaleType) {
+          warn(scalePropertyNotWorkWithScaleType(scaleType, property, channel));
+        } else if (channelIncompatability) {
+          // channel
+          warn(channelIncompatability);
+        }
+      }
+
+      if (supportedByScaleType && channelIncompatability === undefined) {
+        if (specifiedValue !== undefined) {
+          const timeUnit = fieldOrDatumDef['timeUnit'];
+          const type = fieldOrDatumDef.type;
+
+          switch (property) {
+            // domainMax/Min to signal if the value is a datetime object
+            case 'domainMax':
+            case 'domainMin':
+              if (isDateTime(specifiedScale[property]) || type === 'temporal' || timeUnit) {
+                localScaleCmpt.set(property, {
+                  signal: valueExpr(specifiedScale[property], {
+                    type,
+                    timeUnit
+                  })
+                }, true);
+              } else {
+                localScaleCmpt.set(property, specifiedScale[property], true);
+              }
+
+              break;
+
+            default:
+              localScaleCmpt.copyKeyFromObject(property, specifiedScale);
+          }
+        } else {
+          const value = property in scaleRules ? scaleRules[property]({
+            model,
+            channel,
+            fieldOrDatumDef,
+            scaleType,
+            scalePadding,
+            scalePaddingInner,
+            domain: specifiedScale.domain,
+            domainMin: specifiedScale.domainMin,
+            domainMax: specifiedScale.domainMax,
+            markDef,
+            config,
+            hasNestedOffsetScale: channelHasNestedOffsetScale(encoding, channel)
+          }) : config.scale[property];
+
+          if (value !== undefined) {
+            localScaleCmpt.set(property, value, false);
+          }
+        }
+      }
+    }
+  }
+
+  const scaleRules = {
+    bins: _ref => {
+      let {
+        model,
+        fieldOrDatumDef
+      } = _ref;
+      return isFieldDef(fieldOrDatumDef) ? bins(model, fieldOrDatumDef) : undefined;
+    },
+    interpolate: _ref2 => {
+      let {
+        channel,
+        fieldOrDatumDef
+      } = _ref2;
+      return interpolate(channel, fieldOrDatumDef.type);
+    },
+    nice: _ref3 => {
+      let {
+        scaleType,
+        channel,
+        domain,
+        domainMin,
+        domainMax,
+        fieldOrDatumDef
+      } = _ref3;
+      return nice(scaleType, channel, domain, domainMin, domainMax, fieldOrDatumDef);
+    },
+    padding: _ref4 => {
+      let {
+        channel,
+        scaleType,
+        fieldOrDatumDef,
+        markDef,
+        config
+      } = _ref4;
+      return padding(channel, scaleType, config.scale, fieldOrDatumDef, markDef, config.bar);
+    },
+    paddingInner: _ref5 => {
+      let {
+        scalePadding,
+        channel,
+        markDef,
+        scaleType,
+        config,
+        hasNestedOffsetScale
+      } = _ref5;
+      return paddingInner(scalePadding, channel, markDef.type, scaleType, config.scale, hasNestedOffsetScale);
+    },
+    paddingOuter: _ref6 => {
+      let {
+        scalePadding,
+        channel,
+        scaleType,
+        scalePaddingInner,
+        config,
+        hasNestedOffsetScale
+      } = _ref6;
+      return paddingOuter(scalePadding, channel, scaleType, scalePaddingInner, config.scale, hasNestedOffsetScale);
+    },
+    reverse: _ref7 => {
+      let {
+        fieldOrDatumDef,
+        scaleType,
+        channel,
+        config
+      } = _ref7;
+      const sort = isFieldDef(fieldOrDatumDef) ? fieldOrDatumDef.sort : undefined;
+      return reverse(scaleType, sort, channel, config.scale);
+    },
+    zero: _ref8 => {
+      let {
+        channel,
+        fieldOrDatumDef,
+        domain,
+        markDef,
+        scaleType
+      } = _ref8;
+      return zero(channel, fieldOrDatumDef, domain, markDef, scaleType);
+    }
+  }; // This method is here rather than in range.ts to avoid circular dependency.
+
+  function parseScaleRange(model) {
+    if (isUnitModel(model)) {
+      parseUnitScaleRange(model);
+    } else {
+      parseNonUnitScaleProperty(model, 'range');
+    }
+  }
+  function parseNonUnitScaleProperty(model, property) {
+    const localScaleComponents = model.component.scales;
+
+    for (const child of model.children) {
+      if (property === 'range') {
+        parseScaleRange(child);
+      } else {
+        parseScaleProperty(child, property);
+      }
+    }
+
+    for (const channel of keys(localScaleComponents)) {
+      let valueWithExplicit;
+
+      for (const child of model.children) {
+        const childComponent = child.component.scales[channel];
+
+        if (childComponent) {
+          const childValueWithExplicit = childComponent.getWithExplicit(property);
+          valueWithExplicit = mergeValuesWithExplicit(valueWithExplicit, childValueWithExplicit, property, 'scale', tieBreakByComparing((v1, v2) => {
+            switch (property) {
+              case 'range':
+                // For step, prefer larger step
+                if (v1.step && v2.step) {
+                  return v1.step - v2.step;
+                }
+
+                return 0;
+              // TODO: precedence rule for other properties
+            }
+
+            return 0;
+          }));
+        }
+      }
+
+      localScaleComponents[channel].setWithExplicit(property, valueWithExplicit);
+    }
+  }
+  function bins(model, fieldDef) {
+    const bin = fieldDef.bin;
+
+    if (isBinning(bin)) {
+      const binSignal = getBinSignalName(model, fieldDef.field, bin);
+      return new SignalRefWrapper(() => {
+        return model.getSignalName(binSignal);
+      });
+    } else if (isBinned(bin) && isBinParams(bin) && bin.step !== undefined) {
+      // start and stop will be determined from the scale domain
+      return {
+        step: bin.step
+      };
+    }
+
+    return undefined;
+  }
+  function interpolate(channel, type) {
+    if (contains([COLOR, FILL, STROKE], channel) && type !== 'nominal') {
+      return 'hcl';
+    }
+
+    return undefined;
+  }
+  function nice(scaleType, channel, specifiedDomain, domainMin, domainMax, fieldOrDatumDef) {
+    var _getFieldDef;
+
+    if ((_getFieldDef = getFieldDef(fieldOrDatumDef)) !== null && _getFieldDef !== void 0 && _getFieldDef.bin || vega.isArray(specifiedDomain) || domainMax != null || domainMin != null || contains([ScaleType.TIME, ScaleType.UTC], scaleType)) {
+      return undefined;
+    }
+
+    return isXorY(channel) ? true : undefined;
+  }
+  function padding(channel, scaleType, scaleConfig, fieldOrDatumDef, markDef, barConfig) {
+    if (isXorY(channel)) {
+      if (isContinuousToContinuous(scaleType)) {
+        if (scaleConfig.continuousPadding !== undefined) {
+          return scaleConfig.continuousPadding;
+        }
+
+        const {
+          type,
+          orient
+        } = markDef;
+
+        if (type === 'bar' && !(isFieldDef(fieldOrDatumDef) && (fieldOrDatumDef.bin || fieldOrDatumDef.timeUnit))) {
+          if (orient === 'vertical' && channel === 'x' || orient === 'horizontal' && channel === 'y') {
+            return barConfig.continuousBandSize;
+          }
+        }
+      }
+
+      if (scaleType === ScaleType.POINT) {
+        return scaleConfig.pointPadding;
+      }
+    }
+
+    return undefined;
+  }
+  function paddingInner(paddingValue, channel, mark, scaleType, scaleConfig) {
+    let hasNestedOffsetScale = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : false;
+
+    if (paddingValue !== undefined) {
+      // If user has already manually specified "padding", no need to add default paddingInner.
+      return undefined;
+    }
+
+    if (isXorY(channel)) {
+      // Padding is only set for X and Y by default.
+      // Basically it doesn't make sense to add padding for color and size.
+      // paddingOuter would only be called if it's a band scale, just return the default for bandScale.
+      const {
+        bandPaddingInner,
+        barBandPaddingInner,
+        rectBandPaddingInner,
+        bandWithNestedOffsetPaddingInner
+      } = scaleConfig;
+
+      if (hasNestedOffsetScale) {
+        return bandWithNestedOffsetPaddingInner;
+      }
+
+      return getFirstDefined(bandPaddingInner, mark === 'bar' ? barBandPaddingInner : rectBandPaddingInner);
+    } else if (isXorYOffset(channel)) {
+      if (scaleType === ScaleType.BAND) {
+        return scaleConfig.offsetBandPaddingInner;
+      }
+    }
+
+    return undefined;
+  }
+  function paddingOuter(paddingValue, channel, scaleType, paddingInnerValue, scaleConfig) {
+    let hasNestedOffsetScale = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : false;
+
+    if (paddingValue !== undefined) {
+      // If user has already manually specified "padding", no need to add default paddingOuter.
+      return undefined;
+    }
+
+    if (isXorY(channel)) {
+      const {
+        bandPaddingOuter,
+        bandWithNestedOffsetPaddingOuter
+      } = scaleConfig;
+
+      if (hasNestedOffsetScale) {
+        return bandWithNestedOffsetPaddingOuter;
+      } // Padding is only set for X and Y by default.
+      // Basically it doesn't make sense to add padding for color and size.
+
+
+      if (scaleType === ScaleType.BAND) {
+        return getFirstDefined(bandPaddingOuter,
+        /* By default, paddingOuter is paddingInner / 2. The reason is that
+          size (width/height) = step * (cardinality - paddingInner + 2 * paddingOuter).
+          and we want the width/height to be integer by default.
+          Note that step (by default) and cardinality are integers.) */
+        isSignalRef(paddingInnerValue) ? {
+          signal: "".concat(paddingInnerValue.signal, "/2")
+        } : paddingInnerValue / 2);
+      }
+    } else if (isXorYOffset(channel)) {
+      if (scaleType === ScaleType.POINT) {
+        return 0.5; // so the point positions align with centers of band scales.
+      } else if (scaleType === ScaleType.BAND) {
+        return scaleConfig.offsetBandPaddingOuter;
+      }
+    }
+
+    return undefined;
+  }
+  function reverse(scaleType, sort, channel, scaleConfig) {
+    if (channel === 'x' && scaleConfig.xReverse !== undefined) {
+      if (hasContinuousDomain(scaleType) && sort === 'descending') {
+        if (isSignalRef(scaleConfig.xReverse)) {
+          return {
+            signal: "!".concat(scaleConfig.xReverse.signal)
+          };
+        } else {
+          return !scaleConfig.xReverse;
+        }
+      }
+
+      return scaleConfig.xReverse;
+    }
+
+    if (hasContinuousDomain(scaleType) && sort === 'descending') {
+      // For continuous domain scales, Vega does not support domain sort.
+      // Thus, we reverse range instead if sort is descending
+      return true;
+    }
+
+    return undefined;
+  }
+  function zero(channel, fieldDef, specifiedDomain, markDef, scaleType) {
+    // If users explicitly provide a domain, we should not augment zero as that will be unexpected.
+    const hasCustomDomain = !!specifiedDomain && specifiedDomain !== 'unaggregated';
+
+    if (hasCustomDomain) {
+      if (hasContinuousDomain(scaleType)) {
+        if (vega.isArray(specifiedDomain)) {
+          const first = specifiedDomain[0];
+          const last = specifiedDomain[specifiedDomain.length - 1];
+
+          if (first <= 0 && last >= 0) {
+            // if the domain includes zero, make zero remains true
+            return true;
+          }
+        }
+
+        return false;
+      }
+    } // If there is no custom domain, return true only for the following cases:
+    // 1) using quantitative field with size
+    // While this can be either ratio or interval fields, our assumption is that
+    // ratio are more common. However, if the scaleType is discretizing scale, we want to return
+    // false so that range doesn't start at zero
+
+
+    if (channel === 'size' && fieldDef.type === 'quantitative' && !isContinuousToDiscrete(scaleType)) {
+      return true;
+    } // 2) non-binned, quantitative x-scale or y-scale
+    // (For binning, we should not include zero by default because binning are calculated without zero.)
+
+
+    if (!(isFieldDef(fieldDef) && fieldDef.bin) && contains([...POSITION_SCALE_CHANNELS, ...POLAR_POSITION_SCALE_CHANNELS], channel)) {
+      const {
+        orient,
+        type
+      } = markDef;
+
+      if (contains(['bar', 'area', 'line', 'trail'], type)) {
+        if (orient === 'horizontal' && channel === 'y' || orient === 'vertical' && channel === 'x') {
+          return false;
+        }
+      }
+
+      return true;
+    }
+
+    return false;
+  }
+
+  /**
+   * Determine if there is a specified scale type and if it is appropriate,
+   * or determine default type if type is unspecified or inappropriate.
+   */
+  // NOTE: CompassQL uses this method.
+  function scaleType(specifiedScale, channel, fieldDef, mark) {
+    let hasNestedOffsetScale = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;
+    const defaultScaleType = defaultType(channel, fieldDef, mark, hasNestedOffsetScale);
+    const {
+      type
+    } = specifiedScale;
+
+    if (!isScaleChannel(channel)) {
+      // There is no scale for these channels
+      return null;
+    }
+
+    if (type !== undefined) {
+      // Check if explicitly specified scale type is supported by the channel
+      if (!channelSupportScaleType(channel, type)) {
+        warn(scaleTypeNotWorkWithChannel(channel, type, defaultScaleType));
+        return defaultScaleType;
+      } // Check if explicitly specified scale type is supported by the data type
+
+
+      if (isFieldDef(fieldDef) && !scaleTypeSupportDataType(type, fieldDef.type)) {
+        warn(scaleTypeNotWorkWithFieldDef(type, defaultScaleType));
+        return defaultScaleType;
+      }
+
+      return type;
+    }
+
+    return defaultScaleType;
+  }
+  /**
+   * Determine appropriate default scale type.
+   */
+  // NOTE: Voyager uses this method.
+
+  function defaultType(channel, fieldDef, mark, hasNestedOffsetScale) {
+    switch (fieldDef.type) {
+      case 'nominal':
+      case 'ordinal':
+        {
+          var _fieldDef$axis;
+
+          if (isColorChannel(channel) || rangeType(channel) === 'discrete') {
+            if (channel === 'shape' && fieldDef.type === 'ordinal') {
+              warn(discreteChannelCannotEncode(channel, 'ordinal'));
+            }
+
+            return 'ordinal';
+          }
+
+          if (isXorY(channel) || isXorYOffset(channel)) {
+            if (contains(['rect', 'bar', 'image', 'rule'], mark.type)) {
+              // The rect/bar mark should fit into a band.
+              // For rule, using band scale to make rule align with axis ticks better https://github.com/vega/vega-lite/issues/3429
+              return 'band';
+            }
+
+            if (hasNestedOffsetScale) {
+              // If there is a nested offset scale, then there is a "band" for the span of the nested scale.
+              return 'band';
+            }
+          } else if (mark.type === 'arc' && channel in POLAR_POSITION_SCALE_CHANNEL_INDEX) {
+            return 'band';
+          }
+
+          const dimensionSize = mark[getSizeChannel(channel)];
+
+          if (isRelativeBandSize(dimensionSize)) {
+            return 'band';
+          }
+
+          if (isPositionFieldOrDatumDef(fieldDef) && (_fieldDef$axis = fieldDef.axis) !== null && _fieldDef$axis !== void 0 && _fieldDef$axis.tickBand) {
+            return 'band';
+          } // Otherwise, use ordinal point scale so we can easily get center positions of the marks.
+
+
+          return 'point';
+        }
+
+      case 'temporal':
+        if (isColorChannel(channel)) {
+          return 'time';
+        } else if (rangeType(channel) === 'discrete') {
+          warn(discreteChannelCannotEncode(channel, 'temporal')); // TODO: consider using quantize (equivalent to binning) once we have it
+
+          return 'ordinal';
+        } else if (isFieldDef(fieldDef) && fieldDef.timeUnit && normalizeTimeUnit(fieldDef.timeUnit).utc) {
+          return 'utc';
+        }
+
+        return 'time';
+
+      case 'quantitative':
+        if (isColorChannel(channel)) {
+          if (isFieldDef(fieldDef) && isBinning(fieldDef.bin)) {
+            return 'bin-ordinal';
+          }
+
+          return 'linear';
+        } else if (rangeType(channel) === 'discrete') {
+          warn(discreteChannelCannotEncode(channel, 'quantitative')); // TODO: consider using quantize (equivalent to binning) once we have it
+
+          return 'ordinal';
+        }
+
+        return 'linear';
+
+      case 'geojson':
+        return undefined;
+    }
+    /* istanbul ignore next: should never reach this */
+
+
+    throw new Error(invalidFieldType(fieldDef.type));
+  }
+
+  function parseScales(model) {
+    let {
+      ignoreRange
+    } = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    parseScaleCore(model);
+    parseScaleDomain(model);
+
+    for (const prop of NON_TYPE_DOMAIN_RANGE_VEGA_SCALE_PROPERTIES) {
+      parseScaleProperty(model, prop);
+    }
+
+    if (!ignoreRange) {
+      // range depends on zero
+      parseScaleRange(model);
+    }
+  }
+  function parseScaleCore(model) {
+    if (isUnitModel(model)) {
+      model.component.scales = parseUnitScaleCore(model);
+    } else {
+      model.component.scales = parseNonUnitScaleCore(model);
+    }
+  }
+  /**
+   * Parse scales for all channels of a model.
+   */
+
+  function parseUnitScaleCore(model) {
+    const {
+      encoding,
+      mark,
+      markDef
+    } = model;
+    const scaleComponents = {};
+
+    for (const channel of SCALE_CHANNELS) {
+      const fieldOrDatumDef = getFieldOrDatumDef(encoding[channel]); // must be typed def to have scale
+      // Don't generate scale for shape of geoshape
+
+      if (fieldOrDatumDef && mark === GEOSHAPE && channel === SHAPE && fieldOrDatumDef.type === GEOJSON) {
+        continue;
+      }
+
+      let specifiedScale = fieldOrDatumDef && fieldOrDatumDef['scale'];
+
+      if (isXorYOffset(channel)) {
+        const mainChannel = getMainChannelFromOffsetChannel(channel);
+
+        if (!channelHasNestedOffsetScale(encoding, mainChannel)) {
+          // Don't generate scale when the offset encoding shouldn't yield a nested scale
+          if (specifiedScale) {
+            warn(offsetEncodingScaleIgnored(channel));
+          }
+
+          continue;
+        }
+      }
+
+      if (fieldOrDatumDef && specifiedScale !== null && specifiedScale !== false) {
+        var _specifiedScale;
+
+        (_specifiedScale = specifiedScale) !== null && _specifiedScale !== void 0 ? _specifiedScale : specifiedScale = {};
+        const hasNestedOffsetScale = channelHasNestedOffsetScale(encoding, channel);
+        const sType = scaleType(specifiedScale, channel, fieldOrDatumDef, markDef, hasNestedOffsetScale);
+        scaleComponents[channel] = new ScaleComponent(model.scaleName("".concat(channel), true), {
+          value: sType,
+          explicit: specifiedScale.type === sType
+        });
+      }
+    }
+
+    return scaleComponents;
+  }
+
+  const scaleTypeTieBreaker = tieBreakByComparing((st1, st2) => scaleTypePrecedence(st1) - scaleTypePrecedence(st2));
+
+  function parseNonUnitScaleCore(model) {
+    const scaleComponents = model.component.scales = {};
+    const scaleTypeWithExplicitIndex = {};
+    const resolve = model.component.resolve; // Parse each child scale and determine if a particular channel can be merged.
+
+    for (const child of model.children) {
+      parseScaleCore(child); // Instead of always merging right away -- check if it is compatible to merge first!
+
+      for (const channel of keys(child.component.scales)) {
+        var _resolve$scale, _resolve$scale$channe;
+
+        // if resolve is undefined, set default first
+        (_resolve$scale$channe = (_resolve$scale = resolve.scale)[channel]) !== null && _resolve$scale$channe !== void 0 ? _resolve$scale$channe : _resolve$scale[channel] = defaultScaleResolve(channel, model);
+
+        if (resolve.scale[channel] === 'shared') {
+          const explicitScaleType = scaleTypeWithExplicitIndex[channel];
+          const childScaleType = child.component.scales[channel].getWithExplicit('type');
+
+          if (explicitScaleType) {
+            if (scaleCompatible(explicitScaleType.value, childScaleType.value)) {
+              // merge scale component if type are compatible
+              scaleTypeWithExplicitIndex[channel] = mergeValuesWithExplicit(explicitScaleType, childScaleType, 'type', 'scale', scaleTypeTieBreaker);
+            } else {
+              // Otherwise, update conflicting channel to be independent
+              resolve.scale[channel] = 'independent'; // Remove from the index so they don't get merged
+
+              delete scaleTypeWithExplicitIndex[channel];
+            }
+          } else {
+            scaleTypeWithExplicitIndex[channel] = childScaleType;
+          }
+        }
+      }
+    } // Merge each channel listed in the index
+
+
+    for (const channel of keys(scaleTypeWithExplicitIndex)) {
+      // Create new merged scale component
+      const name = model.scaleName(channel, true);
+      const typeWithExplicit = scaleTypeWithExplicitIndex[channel];
+      scaleComponents[channel] = new ScaleComponent(name, typeWithExplicit); // rename each child and mark them as merged
+
+      for (const child of model.children) {
+        const childScale = child.component.scales[channel];
+
+        if (childScale) {
+          child.renameScale(childScale.get('name'), name);
+          childScale.merged = true;
+        }
+      }
+    }
+
+    return scaleComponents;
+  }
+
+  class NameMap {
+    constructor() {
+      _defineProperty(this, "nameMap", void 0);
+
+      this.nameMap = {};
+    }
+
+    rename(oldName, newName) {
+      this.nameMap[oldName] = newName;
+    }
+
+    has(name) {
+      return this.nameMap[name] !== undefined;
+    }
+
+    get(name) {
+      // If the name appears in the _nameMap, we need to read its new name.
+      // We have to loop over the dict just in case the new name also gets renamed.
+      while (this.nameMap[name] && name !== this.nameMap[name]) {
+        name = this.nameMap[name];
+      }
+
+      return name;
+    }
+
+  }
+  /*
+    We use type guards instead of `instanceof` as `instanceof` makes
+    different parts of the compiler depend on the actual implementation of
+    the model classes, which in turn depend on different parts of the compiler.
+    Thus, `instanceof` leads to circular dependency problems.
+
+    On the other hand, type guards only make different parts of the compiler
+    depend on the type of the model classes, but not the actual implementation.
+  */
+
+  function isUnitModel(model) {
+    return (model === null || model === void 0 ? void 0 : model.type) === 'unit';
+  }
+  function isFacetModel(model) {
+    return (model === null || model === void 0 ? void 0 : model.type) === 'facet';
+  }
+  function isConcatModel(model) {
+    return (model === null || model === void 0 ? void 0 : model.type) === 'concat';
+  }
+  function isLayerModel(model) {
+    return (model === null || model === void 0 ? void 0 : model.type) === 'layer';
+  }
+  class Model {
+    /** Name map for scales, which can be renamed by a model's parent. */
+
+    /** Name map for projections, which can be renamed by a model's parent. */
+
+    /** Name map for signals, which can be renamed by a model's parent. */
+    constructor(spec, type, parent, parentGivenName, config, resolve, view) {
+      var _spec$name, _spec$transform;
+
+      this.type = type;
+      this.parent = parent;
+      this.config = config;
+
+      _defineProperty(this, "name", void 0);
+
+      _defineProperty(this, "size", void 0);
+
+      _defineProperty(this, "title", void 0);
+
+      _defineProperty(this, "description", void 0);
+
+      _defineProperty(this, "data", void 0);
+
+      _defineProperty(this, "transforms", void 0);
+
+      _defineProperty(this, "layout", void 0);
+
+      _defineProperty(this, "scaleNameMap", void 0);
+
+      _defineProperty(this, "projectionNameMap", void 0);
+
+      _defineProperty(this, "signalNameMap", void 0);
+
+      _defineProperty(this, "component", void 0);
+
+      _defineProperty(this, "view", void 0);
+
+      _defineProperty(this, "children", void 0);
+
+      _defineProperty(this, "correctDataNames", mark => {
+        var _mark$from, _mark$from2, _mark$from2$facet;
+
+        // TODO: make this correct
+        // for normal data references
+        if ((_mark$from = mark.from) !== null && _mark$from !== void 0 && _mark$from.data) {
+          mark.from.data = this.lookupDataSource(mark.from.data);
+        } // for access to facet data
+
+
+        if ((_mark$from2 = mark.from) !== null && _mark$from2 !== void 0 && (_mark$from2$facet = _mark$from2.facet) !== null && _mark$from2$facet !== void 0 && _mark$from2$facet.data) {
+          mark.from.facet.data = this.lookupDataSource(mark.from.facet.data);
+        }
+
+        return mark;
+      });
+
+      this.parent = parent;
+      this.config = config;
+      this.view = replaceExprRef(view); // If name is not provided, always use parent's givenName to avoid name conflicts.
+
+      this.name = (_spec$name = spec.name) !== null && _spec$name !== void 0 ? _spec$name : parentGivenName;
+      this.title = isText(spec.title) ? {
+        text: spec.title
+      } : spec.title ? replaceExprRef(spec.title) : undefined; // Shared name maps
+
+      this.scaleNameMap = parent ? parent.scaleNameMap : new NameMap();
+      this.projectionNameMap = parent ? parent.projectionNameMap : new NameMap();
+      this.signalNameMap = parent ? parent.signalNameMap : new NameMap();
+      this.data = spec.data;
+      this.description = spec.description;
+      this.transforms = normalizeTransform((_spec$transform = spec.transform) !== null && _spec$transform !== void 0 ? _spec$transform : []);
+      this.layout = type === 'layer' || type === 'unit' ? {} : extractCompositionLayout(spec, type, config);
+      this.component = {
+        data: {
+          sources: parent ? parent.component.data.sources : [],
+          outputNodes: parent ? parent.component.data.outputNodes : {},
+          outputNodeRefCounts: parent ? parent.component.data.outputNodeRefCounts : {},
+          // data is faceted if the spec is a facet spec or the parent has faceted data and data is undefined
+          isFaceted: isFacetSpec(spec) || (parent === null || parent === void 0 ? void 0 : parent.component.data.isFaceted) && spec.data === undefined
+        },
+        layoutSize: new Split(),
+        layoutHeaders: {
+          row: {},
+          column: {},
+          facet: {}
+        },
+        mark: null,
+        resolve: {
+          scale: {},
+          axis: {},
+          legend: {},
+          ...(resolve ? duplicate(resolve) : {})
+        },
+        selection: null,
+        scales: null,
+        projection: null,
+        axes: {},
+        legends: {}
+      };
+    }
+
+    get width() {
+      return this.getSizeSignalRef('width');
+    }
+
+    get height() {
+      return this.getSizeSignalRef('height');
+    }
+
+    parse() {
+      this.parseScale();
+      this.parseLayoutSize(); // depends on scale
+
+      this.renameTopLevelLayoutSizeSignal();
+      this.parseSelections();
+      this.parseProjection();
+      this.parseData(); // (pathorder) depends on markDef; selection filters depend on parsed selections; depends on projection because some transforms require the finalized projection name.
+
+      this.parseAxesAndHeaders(); // depends on scale and layout size
+
+      this.parseLegends(); // depends on scale, markDef
+
+      this.parseMarkGroup(); // depends on data name, scale, layout size, axisGroup, and children's scale, axis, legend and mark.
+    }
+
+    parseScale() {
+      parseScales(this);
+    }
+
+    parseProjection() {
+      parseProjection(this);
+    }
+
+    /**
+     * Rename top-level spec's size to be just width / height, ignoring model name.
+     * This essentially merges the top-level spec's width/height signals with the width/height signals
+     * to help us reduce redundant signals declaration.
+     */
+    renameTopLevelLayoutSizeSignal() {
+      if (this.getName('width') !== 'width') {
+        this.renameSignal(this.getName('width'), 'width');
+      }
+
+      if (this.getName('height') !== 'height') {
+        this.renameSignal(this.getName('height'), 'height');
+      }
+    }
+
+    parseLegends() {
+      parseLegend(this);
+    }
+
+    assembleEncodeFromView(view) {
+      // Exclude "style"
+      const {
+        style: _,
+        ...baseView
+      } = view;
+      const e = {};
+
+      for (const property of keys(baseView)) {
+        const value = baseView[property];
+
+        if (value !== undefined) {
+          e[property] = signalOrValueRef(value);
+        }
+      }
+
+      return e;
+    }
+
+    assembleGroupEncodeEntry(isTopLevel) {
+      let encodeEntry = {};
+
+      if (this.view) {
+        encodeEntry = this.assembleEncodeFromView(this.view);
+      }
+
+      if (!isTopLevel) {
+        // Descriptions are already added to the top-level description so we only need to add them to the inner views.
+        if (this.description) {
+          encodeEntry['description'] = signalOrValueRef(this.description);
+        } // For top-level spec, we can set the global width and height signal to adjust the group size.
+        // For other child specs, we have to manually set width and height in the encode entry.
+
+
+        if (this.type === 'unit' || this.type === 'layer') {
+          var _encodeEntry;
+
+          return {
+            width: this.getSizeSignalRef('width'),
+            height: this.getSizeSignalRef('height'),
+            ...((_encodeEntry = encodeEntry) !== null && _encodeEntry !== void 0 ? _encodeEntry : {})
+          };
+        }
+      }
+
+      return isEmpty(encodeEntry) ? undefined : encodeEntry;
+    }
+
+    assembleLayout() {
+      if (!this.layout) {
+        return undefined;
+      }
+
+      const {
+        spacing,
+        ...layout
+      } = this.layout;
+      const {
+        component,
+        config
+      } = this;
+      const titleBand = assembleLayoutTitleBand(component.layoutHeaders, config);
+      return {
+        padding: spacing,
+        ...this.assembleDefaultLayout(),
+        ...layout,
+        ...(titleBand ? {
+          titleBand
+        } : {})
+      };
+    }
+
+    assembleDefaultLayout() {
+      return {};
+    }
+
+    assembleHeaderMarks() {
+      const {
+        layoutHeaders
+      } = this.component;
+      let headerMarks = [];
+
+      for (const channel of FACET_CHANNELS) {
+        if (layoutHeaders[channel].title) {
+          headerMarks.push(assembleTitleGroup(this, channel));
+        }
+      }
+
+      for (const channel of HEADER_CHANNELS) {
+        headerMarks = headerMarks.concat(assembleHeaderGroups(this, channel));
+      }
+
+      return headerMarks;
+    }
+
+    assembleAxes() {
+      return assembleAxes(this.component.axes, this.config);
+    }
+
+    assembleLegends() {
+      return assembleLegends(this);
+    }
+
+    assembleProjections() {
+      return assembleProjections(this);
+    }
+
+    assembleTitle() {
+      var _this$title;
+
+      const {
+        encoding,
+        ...titleNoEncoding
+      } = (_this$title = this.title) !== null && _this$title !== void 0 ? _this$title : {};
+      const title = { ...extractTitleConfig(this.config.title).nonMarkTitleProperties,
+        ...titleNoEncoding,
+        ...(encoding ? {
+          encode: {
+            update: encoding
+          }
+        } : {})
+      };
+
+      if (title.text) {
+        if (contains(['unit', 'layer'], this.type)) {
+          // Unit/Layer
+          if (contains(['middle', undefined], title.anchor)) {
+            var _title$frame;
+
+            (_title$frame = title.frame) !== null && _title$frame !== void 0 ? _title$frame : title.frame = 'group';
+          }
+        } else {
+          var _title$anchor;
+
+          // composition with Vega layout
+          // Set title = "start" by default for composition as "middle" does not look nice
+          // https://github.com/vega/vega/issues/960#issuecomment-471360328
+          (_title$anchor = title.anchor) !== null && _title$anchor !== void 0 ? _title$anchor : title.anchor = 'start';
+        }
+
+        return isEmpty(title) ? undefined : title;
+      }
+
+      return undefined;
+    }
+    /**
+     * Assemble the mark group for this model. We accept optional `signals` so that we can include concat top-level signals with the top-level model's local signals.
+     */
+
+
+    assembleGroup() {
+      let signals = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+      const group = {};
+      signals = signals.concat(this.assembleSignals());
+
+      if (signals.length > 0) {
+        group.signals = signals;
+      }
+
+      const layout = this.assembleLayout();
+
+      if (layout) {
+        group.layout = layout;
+      }
+
+      group.marks = [].concat(this.assembleHeaderMarks(), this.assembleMarks()); // Only include scales if this spec is top-level or if parent is facet.
+      // (Otherwise, it will be merged with upper-level's scope.)
+
+      const scales = !this.parent || isFacetModel(this.parent) ? assembleScales(this) : [];
+
+      if (scales.length > 0) {
+        group.scales = scales;
+      }
+
+      const axes = this.assembleAxes();
+
+      if (axes.length > 0) {
+        group.axes = axes;
+      }
+
+      const legends = this.assembleLegends();
+
+      if (legends.length > 0) {
+        group.legends = legends;
+      }
+
+      return group;
+    }
+
+    getName(text) {
+      return varName((this.name ? "".concat(this.name, "_") : '') + text);
+    }
+
+    getDataName(type) {
+      return this.getName(DataSourceType[type].toLowerCase());
+    }
+    /**
+     * Request a data source name for the given data source type and mark that data source as required.
+     * This method should be called in parse, so that all used data source can be correctly instantiated in assembleData().
+     * You can lookup the correct dataset name in assemble with `lookupDataSource`.
+     */
+
+
+    requestDataName(name) {
+      const fullName = this.getDataName(name); // Increase ref count. This is critical because otherwise we won't create a data source.
+      // We also increase the ref counts on OutputNode.getSource() calls.
+
+      const refCounts = this.component.data.outputNodeRefCounts;
+      refCounts[fullName] = (refCounts[fullName] || 0) + 1;
+      return fullName;
+    }
+
+    getSizeSignalRef(layoutSizeType) {
+      if (isFacetModel(this.parent)) {
+        const sizeType = getSizeTypeFromLayoutSizeType(layoutSizeType);
+        const channel = getPositionScaleChannel(sizeType);
+        const scaleComponent = this.component.scales[channel];
+
+        if (scaleComponent && !scaleComponent.merged) {
+          // independent scale
+          const type = scaleComponent.get('type');
+          const range = scaleComponent.get('range');
+
+          if (hasDiscreteDomain(type) && isVgRangeStep(range)) {
+            const scaleName = scaleComponent.get('name');
+            const domain = assembleDomain(this, channel);
+            const field = getFieldFromDomain(domain);
+
+            if (field) {
+              const fieldRef = vgField({
+                aggregate: 'distinct',
+                field
+              }, {
+                expr: 'datum'
+              });
+              return {
+                signal: sizeExpr(scaleName, scaleComponent, fieldRef)
+              };
+            } else {
+              warn(unknownField(channel));
+              return null;
+            }
+          }
+        }
+      }
+
+      return {
+        signal: this.signalNameMap.get(this.getName(layoutSizeType))
+      };
+    }
+    /**
+     * Lookup the name of the datasource for an output node. You probably want to call this in assemble.
+     */
+
+
+    lookupDataSource(name) {
+      const node = this.component.data.outputNodes[name];
+
+      if (!node) {
+        // Name not found in map so let's just return what we got.
+        // This can happen if we already have the correct name.
+        return name;
+      }
+
+      return node.getSource();
+    }
+
+    getSignalName(oldSignalName) {
+      return this.signalNameMap.get(oldSignalName);
+    }
+
+    renameSignal(oldName, newName) {
+      this.signalNameMap.rename(oldName, newName);
+    }
+
+    renameScale(oldName, newName) {
+      this.scaleNameMap.rename(oldName, newName);
+    }
+
+    renameProjection(oldName, newName) {
+      this.projectionNameMap.rename(oldName, newName);
+    }
+    /**
+     * @return scale name for a given channel after the scale has been parsed and named.
+     */
+
+
+    scaleName(originalScaleName, parse) {
+      if (parse) {
+        // During the parse phase always return a value
+        // No need to refer to rename map because a scale can't be renamed
+        // before it has the original name.
+        return this.getName(originalScaleName);
+      } // If there is a scale for the channel, it should either
+      // be in the scale component or exist in the name map
+
+
+      if ( // If there is a scale for the channel, there should be a local scale component for it
+      isChannel(originalScaleName) && isScaleChannel(originalScaleName) && this.component.scales[originalScaleName] || // in the scale name map (the scale get merged by its parent)
+      this.scaleNameMap.has(this.getName(originalScaleName))) {
+        return this.scaleNameMap.get(this.getName(originalScaleName));
+      }
+
+      return undefined;
+    }
+    /**
+     * @return projection name after the projection has been parsed and named.
+     */
+
+
+    projectionName(parse) {
+      if (parse) {
+        // During the parse phase always return a value
+        // No need to refer to rename map because a projection can't be renamed
+        // before it has the original name.
+        return this.getName('projection');
+      }
+
+      if (this.component.projection && !this.component.projection.merged || this.projectionNameMap.has(this.getName('projection'))) {
+        return this.projectionNameMap.get(this.getName('projection'));
+      }
+
+      return undefined;
+    }
+    /**
+     * Corrects the data references in marks after assemble.
+     */
+
+
+    /**
+     * Traverse a model's hierarchy to get the scale component for a particular channel.
+     */
+    getScaleComponent(channel) {
+      /* istanbul ignore next: This is warning for debugging test */
+      if (!this.component.scales) {
+        throw new Error('getScaleComponent cannot be called before parseScale(). Make sure you have called parseScale or use parseUnitModelWithScale().');
+      }
+
+      const localScaleComponent = this.component.scales[channel];
+
+      if (localScaleComponent && !localScaleComponent.merged) {
+        return localScaleComponent;
+      }
+
+      return this.parent ? this.parent.getScaleComponent(channel) : undefined;
+    }
+    /**
+     * Traverse a model's hierarchy to get a particular selection component.
+     */
+
+
+    getSelectionComponent(variableName, origName) {
+      let sel = this.component.selection[variableName];
+
+      if (!sel && this.parent) {
+        sel = this.parent.getSelectionComponent(variableName, origName);
+      }
+
+      if (!sel) {
+        throw new Error(selectionNotFound(origName));
+      }
+
+      return sel;
+    }
+    /**
+     * Returns true if the model has a signalRef for an axis orient.
+     */
+
+
+    hasAxisOrientSignalRef() {
+      var _this$component$axes$, _this$component$axes$2;
+
+      return ((_this$component$axes$ = this.component.axes.x) === null || _this$component$axes$ === void 0 ? void 0 : _this$component$axes$.some(a => a.hasOrientSignalRef())) || ((_this$component$axes$2 = this.component.axes.y) === null || _this$component$axes$2 === void 0 ? void 0 : _this$component$axes$2.some(a => a.hasOrientSignalRef()));
+    }
+
+  }
+  /** Abstract class for UnitModel and FacetModel. Both of which can contain fieldDefs as a part of its own specification. */
+
+  class ModelWithField extends Model {
+    /** Get "field" reference for Vega */
+    vgField(channel) {
+      let opt = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+      const fieldDef = this.fieldDef(channel);
+
+      if (!fieldDef) {
+        return undefined;
+      }
+
+      return vgField(fieldDef, opt);
+    }
+
+    reduceFieldDef(f, init) {
+      return reduce(this.getMapping(), (acc, cd, c) => {
+        const fieldDef = getFieldDef(cd);
+
+        if (fieldDef) {
+          return f(acc, fieldDef, c);
+        }
+
+        return acc;
+      }, init);
+    }
+
+    forEachFieldDef(f, t) {
+      forEach(this.getMapping(), (cd, c) => {
+        const fieldDef = getFieldDef(cd);
+
+        if (fieldDef) {
+          f(fieldDef, c);
+        }
+      }, t);
+    }
+
+  }
+
+  /**
+   * A class for density transform nodes
+   */
+
+  class DensityTransformNode extends DataFlowNode {
+    clone() {
+      return new DensityTransformNode(null, duplicate(this.transform));
+    }
+
+    constructor(parent, transform) {
+      var _this$transform$as, _specifiedAs$, _specifiedAs$2;
+
+      super(parent);
+      this.transform = transform;
+      this.transform = duplicate(transform); // duplicate to prevent side effects
+
+      const specifiedAs = (_this$transform$as = this.transform.as) !== null && _this$transform$as !== void 0 ? _this$transform$as : [undefined, undefined];
+      this.transform.as = [(_specifiedAs$ = specifiedAs[0]) !== null && _specifiedAs$ !== void 0 ? _specifiedAs$ : 'value', (_specifiedAs$2 = specifiedAs[1]) !== null && _specifiedAs$2 !== void 0 ? _specifiedAs$2 : 'density'];
+    }
+
+    dependentFields() {
+      var _this$transform$group;
+
+      return new Set([this.transform.density, ...((_this$transform$group = this.transform.groupby) !== null && _this$transform$group !== void 0 ? _this$transform$group : [])]);
+    }
+
+    producedFields() {
+      return new Set(this.transform.as);
+    }
+
+    hash() {
+      return "DensityTransform ".concat(hash(this.transform));
+    }
+
+    assemble() {
+      const {
+        density,
+        ...rest
+      } = this.transform;
+      const result = {
+        type: 'kde',
+        field: density,
+        ...rest
+      };
+      return result;
+    }
+
+  }
+
+  class FilterInvalidNode extends DataFlowNode {
+    clone() {
+      return new FilterInvalidNode(null, { ...this.filter
+      });
+    }
+
+    constructor(parent, filter) {
+      super(parent);
+      this.filter = filter;
+    }
+
+    static make(parent, model) {
+      const {
+        config,
+        mark,
+        markDef
+      } = model;
+      const invalid = getMarkPropOrConfig('invalid', markDef, config);
+
+      if (invalid !== 'filter') {
+        return null;
+      }
+
+      const filter = model.reduceFieldDef((aggregator, fieldDef, channel) => {
+        const scaleComponent = isScaleChannel(channel) && model.getScaleComponent(channel);
+
+        if (scaleComponent) {
+          const scaleType = scaleComponent.get('type'); // While discrete domain scales can handle invalid values, continuous scales can't.
+          // Thus, for non-path marks, we have to filter null for scales with continuous domains.
+          // (For path marks, we will use "defined" property and skip these values instead.)
+
+          if (hasContinuousDomain(scaleType) && fieldDef.aggregate !== 'count' && !isPathMark(mark)) {
+            aggregator[fieldDef.field] = fieldDef; // we know that the fieldDef is a typed field def
+          }
+        }
+
+        return aggregator;
+      }, {});
+
+      if (!keys(filter).length) {
+        return null;
+      }
+
+      return new FilterInvalidNode(parent, filter);
+    }
+
+    dependentFields() {
+      return new Set(keys(this.filter));
+    }
+
+    producedFields() {
+      return new Set(); // filter does not produce any new fields
+    }
+
+    hash() {
+      return "FilterInvalid ".concat(hash(this.filter));
+    }
+    /**
+     * Create the VgTransforms for each of the filtered fields.
+     */
+
+
+    assemble() {
+      const filters = keys(this.filter).reduce((vegaFilters, field) => {
+        const fieldDef = this.filter[field];
+        const ref = vgField(fieldDef, {
+          expr: 'datum'
+        });
+
+        if (fieldDef !== null) {
+          if (fieldDef.type === 'temporal') {
+            vegaFilters.push("(isDate(".concat(ref, ") || (isValid(").concat(ref, ") && isFinite(+").concat(ref, ")))"));
+          } else if (fieldDef.type === 'quantitative') {
+            vegaFilters.push("isValid(".concat(ref, ")"));
+            vegaFilters.push("isFinite(+".concat(ref, ")"));
+          } else ;
+        }
+
+        return vegaFilters;
+      }, []);
+      return filters.length > 0 ? {
+        type: 'filter',
+        expr: filters.join(' && ')
+      } : null;
+    }
+
+  }
+
+  /**
+   * A class for flatten transform nodes
+   */
+
+  class FlattenTransformNode extends DataFlowNode {
+    clone() {
+      return new FlattenTransformNode(this.parent, duplicate(this.transform));
+    }
+
+    constructor(parent, transform) {
+      super(parent);
+      this.transform = transform;
+      this.transform = duplicate(transform); // duplicate to prevent side effects
+
+      const {
+        flatten,
+        as = []
+      } = this.transform;
+      this.transform.as = flatten.map((f, i) => {
+        var _as$i;
+
+        return (_as$i = as[i]) !== null && _as$i !== void 0 ? _as$i : f;
+      });
+    }
+
+    dependentFields() {
+      return new Set(this.transform.flatten);
+    }
+
+    producedFields() {
+      return new Set(this.transform.as);
+    }
+
+    hash() {
+      return "FlattenTransform ".concat(hash(this.transform));
+    }
+
+    assemble() {
+      const {
+        flatten: fields,
+        as
+      } = this.transform;
+      const result = {
+        type: 'flatten',
+        fields,
+        as
+      };
+      return result;
+    }
+
+  }
+
+  /**
+   * A class for flatten transform nodes
+   */
+
+  class FoldTransformNode extends DataFlowNode {
+    clone() {
+      return new FoldTransformNode(null, duplicate(this.transform));
+    }
+
+    constructor(parent, transform) {
+      var _this$transform$as, _specifiedAs$, _specifiedAs$2;
+
+      super(parent);
+      this.transform = transform;
+      this.transform = duplicate(transform); // duplicate to prevent side effects
+
+      const specifiedAs = (_this$transform$as = this.transform.as) !== null && _this$transform$as !== void 0 ? _this$transform$as : [undefined, undefined];
+      this.transform.as = [(_specifiedAs$ = specifiedAs[0]) !== null && _specifiedAs$ !== void 0 ? _specifiedAs$ : 'key', (_specifiedAs$2 = specifiedAs[1]) !== null && _specifiedAs$2 !== void 0 ? _specifiedAs$2 : 'value'];
+    }
+
+    dependentFields() {
+      return new Set(this.transform.fold);
+    }
+
+    producedFields() {
+      return new Set(this.transform.as);
+    }
+
+    hash() {
+      return "FoldTransform ".concat(hash(this.transform));
+    }
+
+    assemble() {
+      const {
+        fold,
+        as
+      } = this.transform;
+      const result = {
+        type: 'fold',
+        fields: fold,
+        as
+      };
+      return result;
+    }
+
+  }
+
+  class GeoJSONNode extends DataFlowNode {
+    clone() {
+      return new GeoJSONNode(null, duplicate(this.fields), this.geojson, this.signal);
+    }
+
+    static parseAll(parent, model) {
+      if (model.component.projection && !model.component.projection.isFit) {
+        return parent;
+      }
+
+      let geoJsonCounter = 0;
+
+      for (const coordinates of [[LONGITUDE, LATITUDE], [LONGITUDE2, LATITUDE2]]) {
+        const pair = coordinates.map(channel => {
+          const def = getFieldOrDatumDef(model.encoding[channel]);
+          return isFieldDef(def) ? def.field : isDatumDef(def) ? {
+            expr: "".concat(def.datum)
+          } : isValueDef(def) ? {
+            expr: "".concat(def['value'])
+          } : undefined;
+        });
+
+        if (pair[0] || pair[1]) {
+          parent = new GeoJSONNode(parent, pair, null, model.getName("geojson_".concat(geoJsonCounter++)));
+        }
+      }
+
+      if (model.channelHasField(SHAPE)) {
+        const fieldDef = model.typedFieldDef(SHAPE);
+
+        if (fieldDef.type === GEOJSON) {
+          parent = new GeoJSONNode(parent, null, fieldDef.field, model.getName("geojson_".concat(geoJsonCounter++)));
+        }
+      }
+
+      return parent;
+    }
+
+    constructor(parent, fields, geojson, signal) {
+      super(parent);
+      this.fields = fields;
+      this.geojson = geojson;
+      this.signal = signal;
+    }
+
+    dependentFields() {
+      var _this$fields;
+
+      const fields = ((_this$fields = this.fields) !== null && _this$fields !== void 0 ? _this$fields : []).filter(vega.isString);
+      return new Set([...(this.geojson ? [this.geojson] : []), ...fields]);
+    }
+
+    producedFields() {
+      return new Set();
+    }
+
+    hash() {
+      return "GeoJSON ".concat(this.geojson, " ").concat(this.signal, " ").concat(hash(this.fields));
+    }
+
+    assemble() {
+      return [...(this.geojson ? [{
+        type: 'filter',
+        expr: "isValid(datum[\"".concat(this.geojson, "\"])")
+      }] : []), {
+        type: 'geojson',
+        ...(this.fields ? {
+          fields: this.fields
+        } : {}),
+        ...(this.geojson ? {
+          geojson: this.geojson
+        } : {}),
+        signal: this.signal
+      }];
+    }
+
+  }
+
+  class GeoPointNode extends DataFlowNode {
+    clone() {
+      return new GeoPointNode(null, this.projection, duplicate(this.fields), duplicate(this.as));
+    }
+
+    constructor(parent, projection, fields, as) {
+      super(parent);
+      this.projection = projection;
+      this.fields = fields;
+      this.as = as;
+    }
+
+    static parseAll(parent, model) {
+      if (!model.projectionName()) {
+        return parent;
+      }
+
+      for (const coordinates of [[LONGITUDE, LATITUDE], [LONGITUDE2, LATITUDE2]]) {
+        const pair = coordinates.map(channel => {
+          const def = getFieldOrDatumDef(model.encoding[channel]);
+          return isFieldDef(def) ? def.field : isDatumDef(def) ? {
+            expr: "".concat(def.datum)
+          } : isValueDef(def) ? {
+            expr: "".concat(def['value'])
+          } : undefined;
+        });
+        const suffix = coordinates[0] === LONGITUDE2 ? '2' : '';
+
+        if (pair[0] || pair[1]) {
+          parent = new GeoPointNode(parent, model.projectionName(), pair, [model.getName("x".concat(suffix)), model.getName("y".concat(suffix))]);
+        }
+      }
+
+      return parent;
+    }
+
+    dependentFields() {
+      return new Set(this.fields.filter(vega.isString));
+    }
+
+    producedFields() {
+      return new Set(this.as);
+    }
+
+    hash() {
+      return "Geopoint ".concat(this.projection, " ").concat(hash(this.fields), " ").concat(hash(this.as));
+    }
+
+    assemble() {
+      return {
+        type: 'geopoint',
+        projection: this.projection,
+        fields: this.fields,
+        as: this.as
+      };
+    }
+
+  }
+
+  class ImputeNode extends DataFlowNode {
+    clone() {
+      return new ImputeNode(null, duplicate(this.transform));
+    }
+
+    constructor(parent, transform) {
+      super(parent);
+      this.transform = transform;
+    }
+
+    dependentFields() {
+      var _this$transform$group;
+
+      return new Set([this.transform.impute, this.transform.key, ...((_this$transform$group = this.transform.groupby) !== null && _this$transform$group !== void 0 ? _this$transform$group : [])]);
+    }
+
+    producedFields() {
+      return new Set([this.transform.impute]);
+    }
+
+    processSequence(keyvals) {
+      const {
+        start = 0,
+        stop,
+        step
+      } = keyvals;
+      const result = [start, stop, ...(step ? [step] : [])].join(',');
+      return {
+        signal: "sequence(".concat(result, ")")
+      };
+    }
+
+    static makeFromTransform(parent, imputeTransform) {
+      return new ImputeNode(parent, imputeTransform);
+    }
+
+    static makeFromEncoding(parent, model) {
+      const encoding = model.encoding;
+      const xDef = encoding.x;
+      const yDef = encoding.y;
+
+      if (isFieldDef(xDef) && isFieldDef(yDef)) {
+        const imputedChannel = xDef.impute ? xDef : yDef.impute ? yDef : undefined;
+
+        if (imputedChannel === undefined) {
+          return undefined;
+        }
+
+        const keyChannel = xDef.impute ? yDef : yDef.impute ? xDef : undefined;
+        const {
+          method,
+          value,
+          frame,
+          keyvals
+        } = imputedChannel.impute;
+        const groupbyFields = pathGroupingFields(model.mark, encoding);
+        return new ImputeNode(parent, {
+          impute: imputedChannel.field,
+          key: keyChannel.field,
+          ...(method ? {
+            method
+          } : {}),
+          ...(value !== undefined ? {
+            value
+          } : {}),
+          ...(frame ? {
+            frame
+          } : {}),
+          ...(keyvals !== undefined ? {
+            keyvals
+          } : {}),
+          ...(groupbyFields.length ? {
+            groupby: groupbyFields
+          } : {})
+        });
+      }
+
+      return null;
+    }
+
+    hash() {
+      return "Impute ".concat(hash(this.transform));
+    }
+
+    assemble() {
+      const {
+        impute,
+        key,
+        keyvals,
+        method,
+        groupby,
+        value,
+        frame = [null, null]
+      } = this.transform;
+      const imputeTransform = {
+        type: 'impute',
+        field: impute,
+        key,
+        ...(keyvals ? {
+          keyvals: isImputeSequence(keyvals) ? this.processSequence(keyvals) : keyvals
+        } : {}),
+        method: 'value',
+        ...(groupby ? {
+          groupby
+        } : {}),
+        value: !method || method === 'value' ? value : null
+      };
+
+      if (method && method !== 'value') {
+        const deriveNewField = {
+          type: 'window',
+          as: ["imputed_".concat(impute, "_value")],
+          ops: [method],
+          fields: [impute],
+          frame,
+          ignorePeers: false,
+          ...(groupby ? {
+            groupby
+          } : {})
+        };
+        const replaceOriginal = {
+          type: 'formula',
+          expr: "datum.".concat(impute, " === null ? datum.imputed_").concat(impute, "_value : datum.").concat(impute),
+          as: impute
+        };
+        return [imputeTransform, deriveNewField, replaceOriginal];
+      } else {
+        return [imputeTransform];
+      }
+    }
+
+  }
+
+  /**
+   * A class for loess transform nodes
+   */
+
+  class LoessTransformNode extends DataFlowNode {
+    clone() {
+      return new LoessTransformNode(null, duplicate(this.transform));
+    }
+
+    constructor(parent, transform) {
+      var _this$transform$as, _specifiedAs$, _specifiedAs$2;
+
+      super(parent);
+      this.transform = transform;
+      this.transform = duplicate(transform); // duplicate to prevent side effects
+
+      const specifiedAs = (_this$transform$as = this.transform.as) !== null && _this$transform$as !== void 0 ? _this$transform$as : [undefined, undefined];
+      this.transform.as = [(_specifiedAs$ = specifiedAs[0]) !== null && _specifiedAs$ !== void 0 ? _specifiedAs$ : transform.on, (_specifiedAs$2 = specifiedAs[1]) !== null && _specifiedAs$2 !== void 0 ? _specifiedAs$2 : transform.loess];
+    }
+
+    dependentFields() {
+      var _this$transform$group;
+
+      return new Set([this.transform.loess, this.transform.on, ...((_this$transform$group = this.transform.groupby) !== null && _this$transform$group !== void 0 ? _this$transform$group : [])]);
+    }
+
+    producedFields() {
+      return new Set(this.transform.as);
+    }
+
+    hash() {
+      return "LoessTransform ".concat(hash(this.transform));
+    }
+
+    assemble() {
+      const {
+        loess,
+        on,
+        ...rest
+      } = this.transform;
+      const result = {
+        type: 'loess',
+        x: on,
+        y: loess,
+        ...rest
+      };
+      return result;
+    }
+
+  }
+
+  class LookupNode extends DataFlowNode {
+    clone() {
+      return new LookupNode(null, duplicate(this.transform), this.secondary);
+    }
+
+    constructor(parent, transform, secondary) {
+      super(parent);
+      this.transform = transform;
+      this.secondary = secondary;
+    }
+
+    static make(parent, model, transform, counter) {
+      const sources = model.component.data.sources;
+      const {
+        from
+      } = transform;
+      let fromOutputNode = null;
+
+      if (isLookupData(from)) {
+        let fromSource = findSource(from.data, sources);
+
+        if (!fromSource) {
+          fromSource = new SourceNode(from.data);
+          sources.push(fromSource);
+        }
+
+        const fromOutputName = model.getName("lookup_".concat(counter));
+        fromOutputNode = new OutputNode(fromSource, fromOutputName, DataSourceType.Lookup, model.component.data.outputNodeRefCounts);
+        model.component.data.outputNodes[fromOutputName] = fromOutputNode;
+      } else if (isLookupSelection(from)) {
+        const selName = from.param;
+        transform = {
+          as: selName,
+          ...transform
+        };
+        let selCmpt;
+
+        try {
+          selCmpt = model.getSelectionComponent(varName(selName), selName);
+        } catch (e) {
+          throw new Error(cannotLookupVariableParameter(selName));
+        }
+
+        fromOutputNode = selCmpt.materialized;
+
+        if (!fromOutputNode) {
+          throw new Error(noSameUnitLookup(selName));
+        }
+      }
+
+      return new LookupNode(parent, transform, fromOutputNode.getSource());
+    }
+
+    dependentFields() {
+      return new Set([this.transform.lookup]);
+    }
+
+    producedFields() {
+      return new Set(this.transform.as ? vega.array(this.transform.as) : this.transform.from.fields);
+    }
+
+    hash() {
+      return "Lookup ".concat(hash({
+        transform: this.transform,
+        secondary: this.secondary
+      }));
+    }
+
+    assemble() {
+      let foreign;
+
+      if (this.transform.from.fields) {
+        // lookup a few fields and add create a flat output
+        foreign = {
+          values: this.transform.from.fields,
+          ...(this.transform.as ? {
+            as: vega.array(this.transform.as)
+          } : {})
+        };
+      } else {
+        // lookup full record and nest it
+        let asName = this.transform.as;
+
+        if (!vega.isString(asName)) {
+          warn(NO_FIELDS_NEEDS_AS);
+          asName = '_lookup';
+        }
+
+        foreign = {
+          as: [asName]
+        };
+      }
+
+      return {
+        type: 'lookup',
+        from: this.secondary,
+        key: this.transform.from.key,
+        fields: [this.transform.lookup],
+        ...foreign,
+        ...(this.transform.default ? {
+          default: this.transform.default
+        } : {})
+      };
+    }
+
+  }
+
+  /**
+   * A class for quantile transform nodes
+   */
+
+  class QuantileTransformNode extends DataFlowNode {
+    clone() {
+      return new QuantileTransformNode(null, duplicate(this.transform));
+    }
+
+    constructor(parent, transform) {
+      var _this$transform$as, _specifiedAs$, _specifiedAs$2;
+
+      super(parent);
+      this.transform = transform;
+      this.transform = duplicate(transform); // duplicate to prevent side effects
+
+      const specifiedAs = (_this$transform$as = this.transform.as) !== null && _this$transform$as !== void 0 ? _this$transform$as : [undefined, undefined];
+      this.transform.as = [(_specifiedAs$ = specifiedAs[0]) !== null && _specifiedAs$ !== void 0 ? _specifiedAs$ : 'prob', (_specifiedAs$2 = specifiedAs[1]) !== null && _specifiedAs$2 !== void 0 ? _specifiedAs$2 : 'value'];
+    }
+
+    dependentFields() {
+      var _this$transform$group;
+
+      return new Set([this.transform.quantile, ...((_this$transform$group = this.transform.groupby) !== null && _this$transform$group !== void 0 ? _this$transform$group : [])]);
+    }
+
+    producedFields() {
+      return new Set(this.transform.as);
+    }
+
+    hash() {
+      return "QuantileTransform ".concat(hash(this.transform));
+    }
+
+    assemble() {
+      const {
+        quantile,
+        ...rest
+      } = this.transform;
+      const result = {
+        type: 'quantile',
+        field: quantile,
+        ...rest
+      };
+      return result;
+    }
+
+  }
+
+  /**
+   * A class for regression transform nodes
+   */
+
+  class RegressionTransformNode extends DataFlowNode {
+    clone() {
+      return new RegressionTransformNode(null, duplicate(this.transform));
+    }
+
+    constructor(parent, transform) {
+      var _this$transform$as, _specifiedAs$, _specifiedAs$2;
+
+      super(parent);
+      this.transform = transform;
+      this.transform = duplicate(transform); // duplicate to prevent side effects
+
+      const specifiedAs = (_this$transform$as = this.transform.as) !== null && _this$transform$as !== void 0 ? _this$transform$as : [undefined, undefined];
+      this.transform.as = [(_specifiedAs$ = specifiedAs[0]) !== null && _specifiedAs$ !== void 0 ? _specifiedAs$ : transform.on, (_specifiedAs$2 = specifiedAs[1]) !== null && _specifiedAs$2 !== void 0 ? _specifiedAs$2 : transform.regression];
+    }
+
+    dependentFields() {
+      var _this$transform$group;
+
+      return new Set([this.transform.regression, this.transform.on, ...((_this$transform$group = this.transform.groupby) !== null && _this$transform$group !== void 0 ? _this$transform$group : [])]);
+    }
+
+    producedFields() {
+      return new Set(this.transform.as);
+    }
+
+    hash() {
+      return "RegressionTransform ".concat(hash(this.transform));
+    }
+
+    assemble() {
+      const {
+        regression,
+        on,
+        ...rest
+      } = this.transform;
+      const result = {
+        type: 'regression',
+        x: on,
+        y: regression,
+        ...rest
+      };
+      return result;
+    }
+
+  }
+
+  /**
+   * A class for pivot transform nodes.
+   */
+
+  class PivotTransformNode extends DataFlowNode {
+    clone() {
+      return new PivotTransformNode(null, duplicate(this.transform));
+    }
+
+    constructor(parent, transform) {
+      super(parent);
+      this.transform = transform;
+    }
+
+    addDimensions(fields) {
+      var _this$transform$group;
+
+      this.transform.groupby = unique(((_this$transform$group = this.transform.groupby) !== null && _this$transform$group !== void 0 ? _this$transform$group : []).concat(fields), d => d);
+    }
+
+    producedFields() {
+      return undefined; // return undefined so that potentially everything can depend on the pivot
+    }
+
+    dependentFields() {
+      var _this$transform$group2;
+
+      return new Set([this.transform.pivot, this.transform.value, ...((_this$transform$group2 = this.transform.groupby) !== null && _this$transform$group2 !== void 0 ? _this$transform$group2 : [])]);
+    }
+
+    hash() {
+      return "PivotTransform ".concat(hash(this.transform));
+    }
+
+    assemble() {
+      const {
+        pivot,
+        value,
+        groupby,
+        limit,
+        op
+      } = this.transform;
+      return {
+        type: 'pivot',
+        field: pivot,
+        value,
+        ...(limit !== undefined ? {
+          limit
+        } : {}),
+        ...(op !== undefined ? {
+          op
+        } : {}),
+        ...(groupby !== undefined ? {
+          groupby
+        } : {})
+      };
+    }
+
+  }
+
+  /**
+   * A class for the sample transform nodes
+   */
+
+  class SampleTransformNode extends DataFlowNode {
+    clone() {
+      return new SampleTransformNode(null, duplicate(this.transform));
+    }
+
+    constructor(parent, transform) {
+      super(parent);
+      this.transform = transform;
+    }
+
+    dependentFields() {
+      return new Set();
+    }
+
+    producedFields() {
+      return new Set();
+    }
+
+    hash() {
+      return "SampleTransform ".concat(hash(this.transform));
+    }
+
+    assemble() {
+      return {
+        type: 'sample',
+        size: this.transform.sample
+      };
+    }
+
+  }
+
+  function makeWalkTree(data) {
+    // to name datasources
+    let datasetIndex = 0;
+    /**
+     * Recursively walk down the tree.
+     */
+
+    function walkTree(node, dataSource) {
+      if (node instanceof SourceNode) {
+        // If the source is a named data source or a data source with values, we need
+        // to put it in a different data source. Otherwise, Vega may override the data.
+        if (!node.isGenerator && !isUrlData(node.data)) {
+          data.push(dataSource);
+          const newData = {
+            name: null,
+            source: dataSource.name,
+            transform: []
+          };
+          dataSource = newData;
+        }
+      }
+
+      if (node instanceof ParseNode) {
+        if (node.parent instanceof SourceNode && !dataSource.source) {
+          var _dataSource$format;
+
+          // If node's parent is a root source and the data source does not refer to another data source, use normal format parse
+          dataSource.format = { ...((_dataSource$format = dataSource.format) !== null && _dataSource$format !== void 0 ? _dataSource$format : {}),
+            parse: node.assembleFormatParse()
+          }; // add calculates for all nested fields
+
+          dataSource.transform.push(...node.assembleTransforms(true));
+        } else {
+          // Otherwise use Vega expression to parse
+          dataSource.transform.push(...node.assembleTransforms());
+        }
+      }
+
+      if (node instanceof FacetNode) {
+        if (!dataSource.name) {
+          dataSource.name = "data_".concat(datasetIndex++);
+        }
+
+        if (!dataSource.source || dataSource.transform.length > 0) {
+          data.push(dataSource);
+          node.data = dataSource.name;
+        } else {
+          node.data = dataSource.source;
+        }
+
+        data.push(...node.assemble()); // break here because the rest of the tree has to be taken care of by the facet.
+
+        return;
+      }
+
+      if (node instanceof GraticuleNode || node instanceof SequenceNode || node instanceof FilterInvalidNode || node instanceof FilterNode || node instanceof CalculateNode || node instanceof GeoPointNode || node instanceof AggregateNode || node instanceof LookupNode || node instanceof WindowTransformNode || node instanceof JoinAggregateTransformNode || node instanceof FoldTransformNode || node instanceof FlattenTransformNode || node instanceof DensityTransformNode || node instanceof LoessTransformNode || node instanceof QuantileTransformNode || node instanceof RegressionTransformNode || node instanceof IdentifierNode || node instanceof SampleTransformNode || node instanceof PivotTransformNode) {
+        dataSource.transform.push(node.assemble());
+      }
+
+      if (node instanceof BinNode || node instanceof TimeUnitNode || node instanceof ImputeNode || node instanceof StackNode || node instanceof GeoJSONNode) {
+        dataSource.transform.push(...node.assemble());
+      }
+
+      if (node instanceof OutputNode) {
+        if (dataSource.source && dataSource.transform.length === 0) {
+          node.setSource(dataSource.source);
+        } else if (node.parent instanceof OutputNode) {
+          // Note that an output node may be required but we still do not assemble a
+          // separate data source for it.
+          node.setSource(dataSource.name);
+        } else {
+          if (!dataSource.name) {
+            dataSource.name = "data_".concat(datasetIndex++);
+          } // Here we set the name of the datasource we generated. From now on
+          // other assemblers can use it.
+
+
+          node.setSource(dataSource.name); // if this node has more than one child, we will add a datasource automatically
+
+          if (node.numChildren() === 1) {
+            data.push(dataSource);
+            const newData = {
+              name: null,
+              source: dataSource.name,
+              transform: []
+            };
+            dataSource = newData;
+          }
+        }
+      }
+
+      switch (node.numChildren()) {
+        case 0:
+          // done
+          if (node instanceof OutputNode && (!dataSource.source || dataSource.transform.length > 0)) {
+            // do not push empty datasources that are simply references
+            data.push(dataSource);
+          }
+
+          break;
+
+        case 1:
+          walkTree(node.children[0], dataSource);
+          break;
+
+        default:
+          {
+            if (!dataSource.name) {
+              dataSource.name = "data_".concat(datasetIndex++);
+            }
+
+            let source = dataSource.name;
+
+            if (!dataSource.source || dataSource.transform.length > 0) {
+              data.push(dataSource);
+            } else {
+              source = dataSource.source;
+            }
+
+            for (const child of node.children) {
+              const newData = {
+                name: null,
+                source,
+                transform: []
+              };
+              walkTree(child, newData);
+            }
+
+            break;
+          }
+      }
+    }
+
+    return walkTree;
+  }
+  /**
+   * Assemble data sources that are derived from faceted data.
+   */
+
+
+  function assembleFacetData(root) {
+    const data = [];
+    const walkTree = makeWalkTree(data);
+
+    for (const child of root.children) {
+      walkTree(child, {
+        source: root.name,
+        name: null,
+        transform: []
+      });
+    }
+
+    return data;
+  }
+  /**
+   * Create Vega data array from a given compiled model and append all of them to the given array
+   *
+   * @param  model
+   * @param  data array
+   * @return modified data array
+   */
+
+  function assembleRootData(dataComponent, datasets) {
+    const data = []; // dataComponent.sources.forEach(debug);
+    // draw(dataComponent.sources);
+
+    const walkTree = makeWalkTree(data);
+    let sourceIndex = 0;
+
+    for (const root of dataComponent.sources) {
+      // assign a name if the source does not have a name yet
+      if (!root.hasName()) {
+        root.dataName = "source_".concat(sourceIndex++);
+      }
+
+      const newData = root.assemble();
+      walkTree(root, newData);
+    } // remove empty transform arrays for cleaner output
+
+
+    for (const d of data) {
+      if (d.transform.length === 0) {
+        delete d.transform;
+      }
+    } // move sources without transforms (the ones that are potentially used in lookups) to the beginning
+
+
+    let whereTo = 0;
+
+    for (const [i, d] of data.entries()) {
+      var _d$transform;
+
+      if (((_d$transform = d.transform) !== null && _d$transform !== void 0 ? _d$transform : []).length === 0 && !d.source) {
+        data.splice(whereTo++, 0, data.splice(i, 1)[0]);
+      }
+    } // now fix the from references in lookup transforms
+
+
+    for (const d of data) {
+      for (const t of (_d$transform2 = d.transform) !== null && _d$transform2 !== void 0 ? _d$transform2 : []) {
+        var _d$transform2;
+
+        if (t.type === 'lookup') {
+          t.from = dataComponent.outputNodes[t.from].getSource();
+        }
+      }
+    } // inline values for datasets that are in the datastore
+
+
+    for (const d of data) {
+      if (d.name in datasets) {
+        d.values = datasets[d.name];
+      }
+    }
+
+    return data;
+  }
+
+  function getHeaderType(orient) {
+    if (orient === 'top' || orient === 'left' || isSignalRef(orient)) {
+      // we always use header for orient signal since we can't dynamically make header becomes footer
+      return 'header';
+    }
+
+    return 'footer';
+  }
+  function parseFacetHeaders(model) {
+    for (const channel of FACET_CHANNELS) {
+      parseFacetHeader(model, channel);
+    }
+
+    mergeChildAxis(model, 'x');
+    mergeChildAxis(model, 'y');
+  }
+
+  function parseFacetHeader(model, channel) {
+    const {
+      facet,
+      config,
+      child,
+      component
+    } = model;
+
+    if (model.channelHasField(channel)) {
+      var _fieldDef$header;
+
+      const fieldDef = facet[channel];
+      const titleConfig = getHeaderProperty('title', null, config, channel);
+      let title$1 = title(fieldDef, config, {
+        allowDisabling: true,
+        includeDefault: titleConfig === undefined || !!titleConfig
+      });
+
+      if (child.component.layoutHeaders[channel].title) {
+        // TODO: better handle multiline titles
+        title$1 = vega.isArray(title$1) ? title$1.join(', ') : title$1; // merge title with child to produce "Title / Subtitle / Sub-subtitle"
+
+        title$1 += " / ".concat(child.component.layoutHeaders[channel].title);
+        child.component.layoutHeaders[channel].title = null;
+      }
+
+      const labelOrient = getHeaderProperty('labelOrient', fieldDef.header, config, channel);
+      const labels = fieldDef.header !== null ? getFirstDefined((_fieldDef$header = fieldDef.header) === null || _fieldDef$header === void 0 ? void 0 : _fieldDef$header.labels, config.header.labels, true) : false;
+      const headerType = contains(['bottom', 'right'], labelOrient) ? 'footer' : 'header';
+      component.layoutHeaders[channel] = {
+        title: fieldDef.header !== null ? title$1 : null,
+        facetFieldDef: fieldDef,
+        [headerType]: channel === 'facet' ? [] : [makeHeaderComponent(model, channel, labels)]
+      };
+    }
+  }
+
+  function makeHeaderComponent(model, channel, labels) {
+    const sizeType = channel === 'row' ? 'height' : 'width';
+    return {
+      labels,
+      sizeSignal: model.child.component.layoutSize.get(sizeType) ? model.child.getSizeSignalRef(sizeType) : undefined,
+      axes: []
+    };
+  }
+
+  function mergeChildAxis(model, channel) {
+    const {
+      child
+    } = model;
+
+    if (child.component.axes[channel]) {
+      const {
+        layoutHeaders,
+        resolve
+      } = model.component;
+      resolve.axis[channel] = parseGuideResolve(resolve, channel);
+
+      if (resolve.axis[channel] === 'shared') {
+        // For shared axis, move the axes to facet's header or footer
+        const headerChannel = channel === 'x' ? 'column' : 'row';
+        const layoutHeader = layoutHeaders[headerChannel];
+
+        for (const axisComponent of child.component.axes[channel]) {
+          var _layoutHeader$headerT;
+
+          const headerType = getHeaderType(axisComponent.get('orient'));
+          (_layoutHeader$headerT = layoutHeader[headerType]) !== null && _layoutHeader$headerT !== void 0 ? _layoutHeader$headerT : layoutHeader[headerType] = [makeHeaderComponent(model, headerChannel, false)]; // FIXME: assemble shouldn't be called here, but we do it this way so we only extract the main part of the axes
+
+          const mainAxis = assembleAxis(axisComponent, 'main', model.config, {
+            header: true
+          });
+
+          if (mainAxis) {
+            // LayoutHeader no longer keep track of property precedence, thus let's combine.
+            layoutHeader[headerType][0].axes.push(mainAxis);
+          }
+
+          axisComponent.mainExtracted = true;
+        }
+      }
+    }
+  }
+
+  function parseLayerLayoutSize(model) {
+    parseChildrenLayoutSize(model);
+    parseNonUnitLayoutSizeForChannel(model, 'width');
+    parseNonUnitLayoutSizeForChannel(model, 'height');
+  }
+  function parseConcatLayoutSize(model) {
+    parseChildrenLayoutSize(model); // for columns === 1 (vconcat), we can completely merge width. Otherwise, we can treat merged width as childWidth.
+
+    const widthType = model.layout.columns === 1 ? 'width' : 'childWidth'; // for columns === undefined (hconcat), we can completely merge height. Otherwise, we can treat merged height as childHeight.
+
+    const heightType = model.layout.columns === undefined ? 'height' : 'childHeight';
+    parseNonUnitLayoutSizeForChannel(model, widthType);
+    parseNonUnitLayoutSizeForChannel(model, heightType);
+  }
+  function parseChildrenLayoutSize(model) {
+    for (const child of model.children) {
+      child.parseLayoutSize();
+    }
+  }
+  /**
+   * Merge child layout size (width or height).
+   */
+
+  function parseNonUnitLayoutSizeForChannel(model, layoutSizeType) {
+    /*
+     * For concat, the parent width or height might not be the same as the children's shared height.
+     * For example, hconcat's subviews may share width, but the shared width is not the hconcat view's width.
+     *
+     * layoutSizeType represents the output of the view (could be childWidth/childHeight/width/height)
+     * while the sizeType represents the properties of the child.
+     */
+    const sizeType = getSizeTypeFromLayoutSizeType(layoutSizeType);
+    const channel = getPositionScaleChannel(sizeType);
+    const resolve = model.component.resolve;
+    const layoutSizeCmpt = model.component.layoutSize;
+    let mergedSize; // Try to merge layout size
+
+    for (const child of model.children) {
+      var _resolve$scale$channe;
+
+      const childSize = child.component.layoutSize.getWithExplicit(sizeType);
+      const scaleResolve = (_resolve$scale$channe = resolve.scale[channel]) !== null && _resolve$scale$channe !== void 0 ? _resolve$scale$channe : defaultScaleResolve(channel, model);
+
+      if (scaleResolve === 'independent' && childSize.value === 'step') {
+        // Do not merge independent scales with range-step as their size depends
+        // on the scale domains, which can be different between scales.
+        mergedSize = undefined;
+        break;
+      }
+
+      if (mergedSize) {
+        if (scaleResolve === 'independent' && mergedSize.value !== childSize.value) {
+          // For independent scale, only merge if all the sizes are the same.
+          // If the values are different, abandon the merge!
+          mergedSize = undefined;
+          break;
+        }
+
+        mergedSize = mergeValuesWithExplicit(mergedSize, childSize, sizeType, '');
+      } else {
+        mergedSize = childSize;
+      }
+    }
+
+    if (mergedSize) {
+      // If merged, rename size and set size of all children.
+      for (const child of model.children) {
+        model.renameSignal(child.getName(sizeType), model.getName(layoutSizeType));
+        child.component.layoutSize.set(sizeType, 'merged', false);
+      }
+
+      layoutSizeCmpt.setWithExplicit(layoutSizeType, mergedSize);
+    } else {
+      layoutSizeCmpt.setWithExplicit(layoutSizeType, {
+        explicit: false,
+        value: undefined
+      });
+    }
+  }
+
+  function parseUnitLayoutSize(model) {
+    const {
+      size,
+      component
+    } = model;
+
+    for (const channel of POSITION_SCALE_CHANNELS) {
+      const sizeType = getSizeChannel(channel);
+
+      if (size[sizeType]) {
+        const specifiedSize = size[sizeType];
+        component.layoutSize.set(sizeType, isStep(specifiedSize) ? 'step' : specifiedSize, true);
+      } else {
+        const defaultSize = defaultUnitSize(model, sizeType);
+        component.layoutSize.set(sizeType, defaultSize, false);
+      }
+    }
+  }
+
+  function defaultUnitSize(model, sizeType) {
+    const channel = sizeType === 'width' ? 'x' : 'y';
+    const config = model.config;
+    const scaleComponent = model.getScaleComponent(channel);
+
+    if (scaleComponent) {
+      const scaleType = scaleComponent.get('type');
+      const range = scaleComponent.get('range');
+
+      if (hasDiscreteDomain(scaleType)) {
+        const size = getViewConfigDiscreteSize(config.view, sizeType);
+
+        if (isVgRangeStep(range) || isStep(size)) {
+          // For discrete domain with range.step, use dynamic width/height
+          return 'step';
+        } else {
+          return size;
+        }
+      } else {
+        return getViewConfigContinuousSize(config.view, sizeType);
+      }
+    } else if (model.hasProjection || model.mark === 'arc') {
+      // arc should use continuous size by default otherwise the pie is extremely small
+      return getViewConfigContinuousSize(config.view, sizeType);
+    } else {
+      const size = getViewConfigDiscreteSize(config.view, sizeType);
+      return isStep(size) ? size.step : size;
+    }
+  }
+
+  function facetSortFieldName(fieldDef, sort, opt) {
+    return vgField(sort, {
+      suffix: "by_".concat(vgField(fieldDef)),
+      ...(opt !== null && opt !== void 0 ? opt : {})
+    });
+  }
+  class FacetModel extends ModelWithField {
+    constructor(spec, parent, parentGivenName, config) {
+      super(spec, 'facet', parent, parentGivenName, config, spec.resolve);
+
+      _defineProperty(this, "facet", void 0);
+
+      _defineProperty(this, "child", void 0);
+
+      _defineProperty(this, "children", void 0);
+
+      this.child = buildModel(spec.spec, this, this.getName('child'), undefined, config);
+      this.children = [this.child];
+      this.facet = this.initFacet(spec.facet);
+    }
+
+    initFacet(facet) {
+      // clone to prevent side effect to the original spec
+      if (!isFacetMapping(facet)) {
+        return {
+          facet: this.initFacetFieldDef(facet, 'facet')
+        };
+      }
+
+      const channels = keys(facet);
+      const normalizedFacet = {};
+
+      for (const channel of channels) {
+        if (![ROW, COLUMN].includes(channel)) {
+          // Drop unsupported channel
+          warn(incompatibleChannel(channel, 'facet'));
+          break;
+        }
+
+        const fieldDef = facet[channel];
+
+        if (fieldDef.field === undefined) {
+          warn(emptyFieldDef(fieldDef, channel));
+          break;
+        }
+
+        normalizedFacet[channel] = this.initFacetFieldDef(fieldDef, channel);
+      }
+
+      return normalizedFacet;
+    }
+
+    initFacetFieldDef(fieldDef, channel) {
+      // Cast because we call initFieldDef, which assumes general FieldDef.
+      // However, FacetFieldDef is a bit more constrained than the general FieldDef
+      const facetFieldDef = initFieldDef(fieldDef, channel);
+
+      if (facetFieldDef.header) {
+        facetFieldDef.header = replaceExprRef(facetFieldDef.header);
+      } else if (facetFieldDef.header === null) {
+        facetFieldDef.header = null;
+      }
+
+      return facetFieldDef;
+    }
+
+    channelHasField(channel) {
+      return !!this.facet[channel];
+    }
+
+    fieldDef(channel) {
+      return this.facet[channel];
+    }
+
+    parseData() {
+      this.component.data = parseData(this);
+      this.child.parseData();
+    }
+
+    parseLayoutSize() {
+      parseChildrenLayoutSize(this);
+    }
+
+    parseSelections() {
+      // As a facet has a single child, the selection components are the same.
+      // The child maintains its selections to assemble signals, which remain
+      // within its unit.
+      this.child.parseSelections();
+      this.component.selection = this.child.component.selection;
+    }
+
+    parseMarkGroup() {
+      this.child.parseMarkGroup();
+    }
+
+    parseAxesAndHeaders() {
+      this.child.parseAxesAndHeaders();
+      parseFacetHeaders(this);
+    }
+
+    assembleSelectionTopLevelSignals(signals) {
+      return this.child.assembleSelectionTopLevelSignals(signals);
+    }
+
+    assembleSignals() {
+      this.child.assembleSignals();
+      return [];
+    }
+
+    assembleSelectionData(data) {
+      return this.child.assembleSelectionData(data);
+    }
+
+    getHeaderLayoutMixins() {
+      const layoutMixins = {};
+
+      for (const channel of FACET_CHANNELS) {
+        for (const headerType of HEADER_TYPES) {
+          const layoutHeaderComponent = this.component.layoutHeaders[channel];
+          const headerComponent = layoutHeaderComponent[headerType];
+          const {
+            facetFieldDef
+          } = layoutHeaderComponent;
+
+          if (facetFieldDef) {
+            const titleOrient = getHeaderProperty('titleOrient', facetFieldDef.header, this.config, channel);
+
+            if (['right', 'bottom'].includes(titleOrient)) {
+              var _layoutMixins$titleAn;
+
+              const headerChannel = getHeaderChannel(channel, titleOrient);
+              (_layoutMixins$titleAn = layoutMixins.titleAnchor) !== null && _layoutMixins$titleAn !== void 0 ? _layoutMixins$titleAn : layoutMixins.titleAnchor = {};
+              layoutMixins.titleAnchor[headerChannel] = 'end';
+            }
+          }
+
+          if (headerComponent !== null && headerComponent !== void 0 && headerComponent[0]) {
+            // set header/footerBand
+            const sizeType = channel === 'row' ? 'height' : 'width';
+            const bandType = headerType === 'header' ? 'headerBand' : 'footerBand';
+
+            if (channel !== 'facet' && !this.child.component.layoutSize.get(sizeType)) {
+              var _layoutMixins$bandTyp;
+
+              // If facet child does not have size signal, then apply headerBand
+              (_layoutMixins$bandTyp = layoutMixins[bandType]) !== null && _layoutMixins$bandTyp !== void 0 ? _layoutMixins$bandTyp : layoutMixins[bandType] = {};
+              layoutMixins[bandType][channel] = 0.5;
+            }
+
+            if (layoutHeaderComponent.title) {
+              var _layoutMixins$offset;
+
+              (_layoutMixins$offset = layoutMixins.offset) !== null && _layoutMixins$offset !== void 0 ? _layoutMixins$offset : layoutMixins.offset = {};
+              layoutMixins.offset[channel === 'row' ? 'rowTitle' : 'columnTitle'] = 10;
+            }
+          }
+        }
+      }
+
+      return layoutMixins;
+    }
+
+    assembleDefaultLayout() {
+      const {
+        column,
+        row
+      } = this.facet;
+      const columns = column ? this.columnDistinctSignal() : row ? 1 : undefined;
+      let align = 'all'; // Do not align the cells if the scale corresponding to the direction is indepent.
+      // We always align when we facet into both row and column.
+
+      if (!row && this.component.resolve.scale.x === 'independent') {
+        align = 'none';
+      } else if (!column && this.component.resolve.scale.y === 'independent') {
+        align = 'none';
+      }
+
+      return { ...this.getHeaderLayoutMixins(),
+        ...(columns ? {
+          columns
+        } : {}),
+        bounds: 'full',
+        align
+      };
+    }
+
+    assembleLayoutSignals() {
+      // FIXME(https://github.com/vega/vega-lite/issues/1193): this can be incorrect if we have independent scales.
+      return this.child.assembleLayoutSignals();
+    }
+
+    columnDistinctSignal() {
+      if (this.parent && this.parent instanceof FacetModel) {
+        // For nested facet, we will add columns to group mark instead
+        // See discussion in https://github.com/vega/vega/issues/952
+        // and https://github.com/vega/vega-view/releases/tag/v1.2.6
+        return undefined;
+      } else {
+        // In facetNode.assemble(), the name is always this.getName('column') + '_layout'.
+        const facetLayoutDataName = this.getName('column_domain');
+        return {
+          signal: "length(data('".concat(facetLayoutDataName, "'))")
+        };
+      }
+    }
+
+    assembleGroupStyle() {
+      return undefined;
+    }
+
+    assembleGroup(signals) {
+      if (this.parent && this.parent instanceof FacetModel) {
+        // Provide number of columns for layout.
+        // See discussion in https://github.com/vega/vega/issues/952
+        // and https://github.com/vega/vega-view/releases/tag/v1.2.6
+        return { ...(this.channelHasField('column') ? {
+            encode: {
+              update: {
+                // TODO(https://github.com/vega/vega-lite/issues/2759):
+                // Correct the signal for facet of concat of facet_column
+                columns: {
+                  field: vgField(this.facet.column, {
+                    prefix: 'distinct'
+                  })
+                }
+              }
+            }
+          } : {}),
+          ...super.assembleGroup(signals)
+        };
+      }
+
+      return super.assembleGroup(signals);
+    }
+    /**
+     * Aggregate cardinality for calculating size
+     */
+
+
+    getCardinalityAggregateForChild() {
+      const fields = [];
+      const ops = [];
+      const as = [];
+
+      if (this.child instanceof FacetModel) {
+        if (this.child.channelHasField('column')) {
+          const field = vgField(this.child.facet.column);
+          fields.push(field);
+          ops.push('distinct');
+          as.push("distinct_".concat(field));
+        }
+      } else {
+        for (const channel of POSITION_SCALE_CHANNELS) {
+          const childScaleComponent = this.child.component.scales[channel];
+
+          if (childScaleComponent && !childScaleComponent.merged) {
+            const type = childScaleComponent.get('type');
+            const range = childScaleComponent.get('range');
+
+            if (hasDiscreteDomain(type) && isVgRangeStep(range)) {
+              const domain = assembleDomain(this.child, channel);
+              const field = getFieldFromDomain(domain);
+
+              if (field) {
+                fields.push(field);
+                ops.push('distinct');
+                as.push("distinct_".concat(field));
+              } else {
+                warn(unknownField(channel));
+              }
+            }
+          }
+        }
+      }
+
+      return {
+        fields,
+        ops,
+        as
+      };
+    }
+
+    assembleFacet() {
+      const {
+        name,
+        data
+      } = this.component.data.facetRoot;
+      const {
+        row,
+        column
+      } = this.facet;
+      const {
+        fields,
+        ops,
+        as
+      } = this.getCardinalityAggregateForChild();
+      const groupby = [];
+
+      for (const channel of FACET_CHANNELS) {
+        const fieldDef = this.facet[channel];
+
+        if (fieldDef) {
+          groupby.push(vgField(fieldDef));
+          const {
+            bin,
+            sort
+          } = fieldDef;
+
+          if (isBinning(bin)) {
+            groupby.push(vgField(fieldDef, {
+              binSuffix: 'end'
+            }));
+          }
+
+          if (isSortField(sort)) {
+            const {
+              field,
+              op = DEFAULT_SORT_OP
+            } = sort;
+            const outputName = facetSortFieldName(fieldDef, sort);
+
+            if (row && column) {
+              // For crossed facet, use pre-calculate field as it requires a different groupby
+              // For each calculated field, apply max and assign them to the same name as
+              // all values of the same group should be the same anyway.
+              fields.push(outputName);
+              ops.push('max');
+              as.push(outputName);
+            } else {
+              fields.push(field);
+              ops.push(op);
+              as.push(outputName);
+            }
+          } else if (vega.isArray(sort)) {
+            const outputName = sortArrayIndexField(fieldDef, channel);
+            fields.push(outputName);
+            ops.push('max');
+            as.push(outputName);
+          }
+        }
+      }
+
+      const cross = !!row && !!column;
+      return {
+        name,
+        data,
+        groupby,
+        ...(cross || fields.length > 0 ? {
+          aggregate: { ...(cross ? {
+              cross
+            } : {}),
+            ...(fields.length ? {
+              fields,
+              ops,
+              as
+            } : {})
+          }
+        } : {})
+      };
+    }
+
+    facetSortFields(channel) {
+      const {
+        facet
+      } = this;
+      const fieldDef = facet[channel];
+
+      if (fieldDef) {
+        if (isSortField(fieldDef.sort)) {
+          return [facetSortFieldName(fieldDef, fieldDef.sort, {
+            expr: 'datum'
+          })];
+        } else if (vega.isArray(fieldDef.sort)) {
+          return [sortArrayIndexField(fieldDef, channel, {
+            expr: 'datum'
+          })];
+        }
+
+        return [vgField(fieldDef, {
+          expr: 'datum'
+        })];
+      }
+
+      return [];
+    }
+
+    facetSortOrder(channel) {
+      const {
+        facet
+      } = this;
+      const fieldDef = facet[channel];
+
+      if (fieldDef) {
+        const {
+          sort
+        } = fieldDef;
+        const order = (isSortField(sort) ? sort.order : !vega.isArray(sort) && sort) || 'ascending';
+        return [order];
+      }
+
+      return [];
+    }
+
+    assembleLabelTitle() {
+      const {
+        facet,
+        config
+      } = this;
+
+      if (facet.facet) {
+        // Facet always uses title to display labels
+        return assembleLabelTitle(facet.facet, 'facet', config);
+      }
+
+      const ORTHOGONAL_ORIENT = {
+        row: ['top', 'bottom'],
+        column: ['left', 'right']
+      };
+
+      for (const channel of HEADER_CHANNELS) {
+        if (facet[channel]) {
+          var _facet$channel;
+
+          const labelOrient = getHeaderProperty('labelOrient', (_facet$channel = facet[channel]) === null || _facet$channel === void 0 ? void 0 : _facet$channel.header, config, channel);
+
+          if (ORTHOGONAL_ORIENT[channel].includes(labelOrient)) {
+            // Row/Column with orthogonal labelOrient must use title to display labels
+            return assembleLabelTitle(facet[channel], channel, config);
+          }
+        }
+      }
+
+      return undefined;
+    }
+
+    assembleMarks() {
+      const {
+        child
+      } = this; // If we facet by two dimensions, we need to add a cross operator to the aggregation
+      // so that we create all groups
+
+      const facetRoot = this.component.data.facetRoot;
+      const data = assembleFacetData(facetRoot);
+      const encodeEntry = child.assembleGroupEncodeEntry(false);
+      const title = this.assembleLabelTitle() || child.assembleTitle();
+      const style = child.assembleGroupStyle();
+      const markGroup = {
+        name: this.getName('cell'),
+        type: 'group',
+        ...(title ? {
+          title
+        } : {}),
+        ...(style ? {
+          style
+        } : {}),
+        from: {
+          facet: this.assembleFacet()
+        },
+        // TODO: move this to after data
+        sort: {
+          field: FACET_CHANNELS.map(c => this.facetSortFields(c)).flat(),
+          order: FACET_CHANNELS.map(c => this.facetSortOrder(c)).flat()
+        },
+        ...(data.length > 0 ? {
+          data
+        } : {}),
+        ...(encodeEntry ? {
+          encode: {
+            update: encodeEntry
+          }
+        } : {}),
+        ...child.assembleGroup(assembleFacetSignals(this, []))
+      };
+      return [markGroup];
+    }
+
+    getMapping() {
+      return this.facet;
+    }
+
+  }
+
+  function makeJoinAggregateFromFacet(parent, facet) {
+    const {
+      row,
+      column
+    } = facet;
+
+    if (row && column) {
+      let newParent = null; // only need to make one for crossed facet
+
+      for (const fieldDef of [row, column]) {
+        if (isSortField(fieldDef.sort)) {
+          const {
+            field,
+            op = DEFAULT_SORT_OP
+          } = fieldDef.sort;
+          parent = newParent = new JoinAggregateTransformNode(parent, {
+            joinaggregate: [{
+              op,
+              field,
+              as: facetSortFieldName(fieldDef, fieldDef.sort, {
+                forAs: true
+              })
+            }],
+            groupby: [vgField(fieldDef)]
+          });
+        }
+      }
+
+      return newParent;
+    }
+
+    return null;
+  }
+
+  function findSource(data, sources) {
+    for (const other of sources) {
+      var _data$format, _otherData$format, _data$format2, _otherData$format2;
+
+      const otherData = other.data; // if both datasets have a name defined, we cannot merge
+
+      if (data.name && other.hasName() && data.name !== other.dataName) {
+        continue;
+      }
+
+      const formatMesh = (_data$format = data['format']) === null || _data$format === void 0 ? void 0 : _data$format.mesh;
+      const otherFeature = (_otherData$format = otherData.format) === null || _otherData$format === void 0 ? void 0 : _otherData$format.feature; // feature and mesh are mutually exclusive
+
+      if (formatMesh && otherFeature) {
+        continue;
+      } // we have to extract the same feature or mesh
+
+
+      const formatFeature = (_data$format2 = data['format']) === null || _data$format2 === void 0 ? void 0 : _data$format2.feature;
+
+      if ((formatFeature || otherFeature) && formatFeature !== otherFeature) {
+        continue;
+      }
+
+      const otherMesh = (_otherData$format2 = otherData.format) === null || _otherData$format2 === void 0 ? void 0 : _otherData$format2.mesh;
+
+      if ((formatMesh || otherMesh) && formatMesh !== otherMesh) {
+        continue;
+      }
+
+      if (isInlineData(data) && isInlineData(otherData)) {
+        if (deepEqual(data.values, otherData.values)) {
+          return other;
+        }
+      } else if (isUrlData(data) && isUrlData(otherData)) {
+        if (data.url === otherData.url) {
+          return other;
+        }
+      } else if (isNamedData(data)) {
+        if (data.name === other.dataName) {
+          return other;
+        }
+      }
+    }
+
+    return null;
+  }
+
+  function parseRoot(model, sources) {
+    if (model.data || !model.parent) {
+      // if the model defines a data source or is the root, create a source node
+      if (model.data === null) {
+        // data: null means we should ignore the parent's data so we just create a new data source
+        const source = new SourceNode({
+          values: []
+        });
+        sources.push(source);
+        return source;
+      }
+
+      const existingSource = findSource(model.data, sources);
+
+      if (existingSource) {
+        if (!isGenerator(model.data)) {
+          existingSource.data.format = mergeDeep({}, model.data.format, existingSource.data.format);
+        } // if the new source has a name but the existing one does not, we can set it
+
+
+        if (!existingSource.hasName() && model.data.name) {
+          existingSource.dataName = model.data.name;
+        }
+
+        return existingSource;
+      } else {
+        const source = new SourceNode(model.data);
+        sources.push(source);
+        return source;
+      }
+    } else {
+      // If we don't have a source defined (overriding parent's data), use the parent's facet root or main.
+      return model.parent.component.data.facetRoot ? model.parent.component.data.facetRoot : model.parent.component.data.main;
+    }
+  }
+  /**
+   * Parses a transform array into a chain of connected dataflow nodes.
+   */
+
+
+  function parseTransformArray(head, model, ancestorParse) {
+    let lookupCounter = 0;
+
+    for (const t of model.transforms) {
+      let derivedType = undefined;
+      let transformNode;
+
+      if (isCalculate(t)) {
+        transformNode = head = new CalculateNode(head, t);
+        derivedType = 'derived';
+      } else if (isFilter(t)) {
+        var _ParseNode$makeWithAn;
+
+        const implicit = getImplicitFromFilterTransform(t);
+        transformNode = head = (_ParseNode$makeWithAn = ParseNode.makeWithAncestors(head, {}, implicit, ancestorParse)) !== null && _ParseNode$makeWithAn !== void 0 ? _ParseNode$makeWithAn : head;
+        head = new FilterNode(head, model, t.filter);
+      } else if (isBin(t)) {
+        transformNode = head = BinNode.makeFromTransform(head, t, model);
+        derivedType = 'number';
+      } else if (isTimeUnit(t)) {
+        derivedType = 'date';
+        const parsedAs = ancestorParse.getWithExplicit(t.field); // Create parse node because the input to time unit is always date.
+
+        if (parsedAs.value === undefined) {
+          head = new ParseNode(head, {
+            [t.field]: derivedType
+          });
+          ancestorParse.set(t.field, derivedType, false);
+        }
+
+        transformNode = head = TimeUnitNode.makeFromTransform(head, t);
+      } else if (isAggregate(t)) {
+        transformNode = head = AggregateNode.makeFromTransform(head, t);
+        derivedType = 'number';
+
+        if (requiresSelectionId(model)) {
+          head = new IdentifierNode(head);
+        }
+      } else if (isLookup(t)) {
+        transformNode = head = LookupNode.make(head, model, t, lookupCounter++);
+        derivedType = 'derived';
+      } else if (isWindow(t)) {
+        transformNode = head = new WindowTransformNode(head, t);
+        derivedType = 'number';
+      } else if (isJoinAggregate(t)) {
+        transformNode = head = new JoinAggregateTransformNode(head, t);
+        derivedType = 'number';
+      } else if (isStack(t)) {
+        transformNode = head = StackNode.makeFromTransform(head, t);
+        derivedType = 'derived';
+      } else if (isFold(t)) {
+        transformNode = head = new FoldTransformNode(head, t);
+        derivedType = 'derived';
+      } else if (isFlatten(t)) {
+        transformNode = head = new FlattenTransformNode(head, t);
+        derivedType = 'derived';
+      } else if (isPivot(t)) {
+        transformNode = head = new PivotTransformNode(head, t);
+        derivedType = 'derived';
+      } else if (isSample(t)) {
+        head = new SampleTransformNode(head, t);
+      } else if (isImpute(t)) {
+        transformNode = head = ImputeNode.makeFromTransform(head, t);
+        derivedType = 'derived';
+      } else if (isDensity(t)) {
+        transformNode = head = new DensityTransformNode(head, t);
+        derivedType = 'derived';
+      } else if (isQuantile(t)) {
+        transformNode = head = new QuantileTransformNode(head, t);
+        derivedType = 'derived';
+      } else if (isRegression(t)) {
+        transformNode = head = new RegressionTransformNode(head, t);
+        derivedType = 'derived';
+      } else if (isLoess(t)) {
+        transformNode = head = new LoessTransformNode(head, t);
+        derivedType = 'derived';
+      } else {
+        warn(invalidTransformIgnored(t));
+        continue;
+      }
+
+      if (transformNode && derivedType !== undefined) {
+        for (const field of (_transformNode$produc = transformNode.producedFields()) !== null && _transformNode$produc !== void 0 ? _transformNode$produc : []) {
+          var _transformNode$produc;
+
+          ancestorParse.set(field, derivedType, false);
+        }
+      }
+    }
+
+    return head;
+  }
+  /*
+  Description of the dataflow (http://asciiflow.com/):
+       +--------+
+       | Source |
+       +---+----+
+           |
+           v
+       FormatParse
+       (explicit)
+           |
+           v
+       Transforms
+  (Filter, Calculate, Binning, TimeUnit, Aggregate, Window, ...)
+           |
+           v
+       FormatParse
+       (implicit)
+           |
+           v
+   Binning (in `encoding`)
+           |
+           v
+   Timeunit (in `encoding`)
+           |
+           v
+  Formula From Sort Array
+           |
+           v
+        +--+--+
+        | Raw |
+        +-----+
+           |
+           v
+    Aggregate (in `encoding`)
+           |
+           v
+    Stack (in `encoding`)
+           |
+           v
+    Invalid Filter
+           |
+           v
+     +----------+
+     |   Main   |
+     +----------+
+           |
+           v
+       +-------+
+       | Facet |----> "column", "column-layout", and "row"
+       +-------+
+           |
+           v
+    ...Child data...
+  */
+
+  function parseData(model) {
+    var _data$format3, _ParseNode$makeExplic, _ParseNode$makeWithAn2;
+
+    let head = parseRoot(model, model.component.data.sources);
+    const {
+      outputNodes,
+      outputNodeRefCounts
+    } = model.component.data;
+    const data = model.data;
+    const newData = data && (isGenerator(data) || isUrlData(data) || isInlineData(data));
+    const ancestorParse = !newData && model.parent ? model.parent.component.data.ancestorParse.clone() : new AncestorParse();
+
+    if (isGenerator(data)) {
+      // insert generator transform
+      if (isSequenceGenerator(data)) {
+        head = new SequenceNode(head, data.sequence);
+      } else if (isGraticuleGenerator(data)) {
+        head = new GraticuleNode(head, data.graticule);
+      } // no parsing necessary for generator
+
+
+      ancestorParse.parseNothing = true;
+    } else if ((data === null || data === void 0 ? void 0 : (_data$format3 = data.format) === null || _data$format3 === void 0 ? void 0 : _data$format3.parse) === null) {
+      // format.parse: null means disable parsing
+      ancestorParse.parseNothing = true;
+    }
+
+    head = (_ParseNode$makeExplic = ParseNode.makeExplicit(head, model, ancestorParse)) !== null && _ParseNode$makeExplic !== void 0 ? _ParseNode$makeExplic : head; // Default discrete selections require an identifer transform to
+    // uniquely identify data points. Add this transform at the head of
+    // the pipeline such that the identifier field is available for all
+    // subsequent datasets. During optimization, we will remove this
+    // transform if it proves to be unnecessary. Additional identifier
+    // transforms will be necessary when new tuples are constructed
+    // (e.g., post-aggregation).
+
+    head = new IdentifierNode(head); // HACK: This is equivalent for merging bin extent for union scale.
+    // FIXME(https://github.com/vega/vega-lite/issues/2270): Correctly merge extent / bin node for shared bin scale
+
+    const parentIsLayer = model.parent && isLayerModel(model.parent);
+
+    if (isUnitModel(model) || isFacetModel(model)) {
+      if (parentIsLayer) {
+        var _BinNode$makeFromEnco;
+
+        head = (_BinNode$makeFromEnco = BinNode.makeFromEncoding(head, model)) !== null && _BinNode$makeFromEnco !== void 0 ? _BinNode$makeFromEnco : head;
+      }
+    }
+
+    if (model.transforms.length > 0) {
+      head = parseTransformArray(head, model, ancestorParse);
+    } // create parse nodes for fields that need to be parsed (or flattened) implicitly
+
+
+    const implicitSelection = getImplicitFromSelection(model);
+    const implicitEncoding = getImplicitFromEncoding(model);
+    head = (_ParseNode$makeWithAn2 = ParseNode.makeWithAncestors(head, {}, { ...implicitSelection,
+      ...implicitEncoding
+    }, ancestorParse)) !== null && _ParseNode$makeWithAn2 !== void 0 ? _ParseNode$makeWithAn2 : head;
+
+    if (isUnitModel(model)) {
+      head = GeoJSONNode.parseAll(head, model);
+      head = GeoPointNode.parseAll(head, model);
+    }
+
+    if (isUnitModel(model) || isFacetModel(model)) {
+      var _TimeUnitNode$makeFro;
+
+      if (!parentIsLayer) {
+        var _BinNode$makeFromEnco2;
+
+        head = (_BinNode$makeFromEnco2 = BinNode.makeFromEncoding(head, model)) !== null && _BinNode$makeFromEnco2 !== void 0 ? _BinNode$makeFromEnco2 : head;
+      }
+
+      head = (_TimeUnitNode$makeFro = TimeUnitNode.makeFromEncoding(head, model)) !== null && _TimeUnitNode$makeFro !== void 0 ? _TimeUnitNode$makeFro : head;
+      head = CalculateNode.parseAllForSortIndex(head, model);
+    } // add an output node pre aggregation
+
+
+    const rawName = model.getDataName(DataSourceType.Raw);
+    const raw = new OutputNode(head, rawName, DataSourceType.Raw, outputNodeRefCounts);
+    outputNodes[rawName] = raw;
+    head = raw;
+
+    if (isUnitModel(model)) {
+      var _ImputeNode$makeFromE, _StackNode$makeFromEn;
+
+      const agg = AggregateNode.makeFromEncoding(head, model);
+
+      if (agg) {
+        head = agg;
+
+        if (requiresSelectionId(model)) {
+          head = new IdentifierNode(head);
+        }
+      }
+
+      head = (_ImputeNode$makeFromE = ImputeNode.makeFromEncoding(head, model)) !== null && _ImputeNode$makeFromE !== void 0 ? _ImputeNode$makeFromE : head;
+      head = (_StackNode$makeFromEn = StackNode.makeFromEncoding(head, model)) !== null && _StackNode$makeFromEn !== void 0 ? _StackNode$makeFromEn : head;
+    }
+
+    if (isUnitModel(model)) {
+      var _FilterInvalidNode$ma;
+
+      head = (_FilterInvalidNode$ma = FilterInvalidNode.make(head, model)) !== null && _FilterInvalidNode$ma !== void 0 ? _FilterInvalidNode$ma : head;
+    } // output node for marks
+
+
+    const mainName = model.getDataName(DataSourceType.Main);
+    const main = new OutputNode(head, mainName, DataSourceType.Main, outputNodeRefCounts);
+    outputNodes[mainName] = main;
+    head = main;
+
+    if (isUnitModel(model)) {
+      materializeSelections(model, main);
+    } // add facet marker
+
+
+    let facetRoot = null;
+
+    if (isFacetModel(model)) {
+      var _makeJoinAggregateFro;
+
+      const facetName = model.getName('facet'); // Derive new aggregate for facet's sort field
+      // augment data source with new fields for crossed facet
+
+      head = (_makeJoinAggregateFro = makeJoinAggregateFromFacet(head, model.facet)) !== null && _makeJoinAggregateFro !== void 0 ? _makeJoinAggregateFro : head;
+      facetRoot = new FacetNode(head, model, facetName, main.getSource());
+      outputNodes[facetName] = facetRoot;
+    }
+
+    return { ...model.component.data,
+      outputNodes,
+      outputNodeRefCounts,
+      raw,
+      main,
+      facetRoot,
+      ancestorParse
+    };
+  }
+
+  class ConcatModel extends Model {
+    constructor(spec, parent, parentGivenName, config) {
+      var _spec$resolve, _spec$resolve$axis, _spec$resolve2, _spec$resolve2$axis;
+
+      super(spec, 'concat', parent, parentGivenName, config, spec.resolve);
+
+      _defineProperty(this, "children", void 0);
+
+      if (((_spec$resolve = spec.resolve) === null || _spec$resolve === void 0 ? void 0 : (_spec$resolve$axis = _spec$resolve.axis) === null || _spec$resolve$axis === void 0 ? void 0 : _spec$resolve$axis.x) === 'shared' || ((_spec$resolve2 = spec.resolve) === null || _spec$resolve2 === void 0 ? void 0 : (_spec$resolve2$axis = _spec$resolve2.axis) === null || _spec$resolve2$axis === void 0 ? void 0 : _spec$resolve2$axis.y) === 'shared') {
+        warn(CONCAT_CANNOT_SHARE_AXIS);
+      }
+
+      this.children = this.getChildren(spec).map((child, i) => {
+        return buildModel(child, this, this.getName("concat_".concat(i)), undefined, config);
+      });
+    }
+
+    parseData() {
+      this.component.data = parseData(this);
+
+      for (const child of this.children) {
+        child.parseData();
+      }
+    }
+
+    parseSelections() {
+      // Merge selections up the hierarchy so that they may be referenced
+      // across unit specs. Persist their definitions within each child
+      // to assemble signals which remain within output Vega unit groups.
+      this.component.selection = {};
+
+      for (const child of this.children) {
+        child.parseSelections();
+
+        for (const key of keys(child.component.selection)) {
+          this.component.selection[key] = child.component.selection[key];
+        }
+      }
+    }
+
+    parseMarkGroup() {
+      for (const child of this.children) {
+        child.parseMarkGroup();
+      }
+    }
+
+    parseAxesAndHeaders() {
+      for (const child of this.children) {
+        child.parseAxesAndHeaders();
+      } // TODO(#2415): support shared axes
+
+    }
+
+    getChildren(spec) {
+      if (isVConcatSpec(spec)) {
+        return spec.vconcat;
+      } else if (isHConcatSpec(spec)) {
+        return spec.hconcat;
+      }
+
+      return spec.concat;
+    }
+
+    parseLayoutSize() {
+      parseConcatLayoutSize(this);
+    }
+
+    parseAxisGroup() {
+      return null;
+    }
+
+    assembleSelectionTopLevelSignals(signals) {
+      return this.children.reduce((sg, child) => child.assembleSelectionTopLevelSignals(sg), signals);
+    }
+
+    assembleSignals() {
+      this.children.forEach(child => child.assembleSignals());
+      return [];
+    }
+
+    assembleLayoutSignals() {
+      const layoutSignals = assembleLayoutSignals(this);
+
+      for (const child of this.children) {
+        layoutSignals.push(...child.assembleLayoutSignals());
+      }
+
+      return layoutSignals;
+    }
+
+    assembleSelectionData(data) {
+      return this.children.reduce((db, child) => child.assembleSelectionData(db), data);
+    }
+
+    assembleMarks() {
+      // only children have marks
+      return this.children.map(child => {
+        const title = child.assembleTitle();
+        const style = child.assembleGroupStyle();
+        const encodeEntry = child.assembleGroupEncodeEntry(false);
+        return {
+          type: 'group',
+          name: child.getName('group'),
+          ...(title ? {
+            title
+          } : {}),
+          ...(style ? {
+            style
+          } : {}),
+          ...(encodeEntry ? {
+            encode: {
+              update: encodeEntry
+            }
+          } : {}),
+          ...child.assembleGroup()
+        };
+      });
+    }
+
+    assembleGroupStyle() {
+      return undefined;
+    }
+
+    assembleDefaultLayout() {
+      const columns = this.layout.columns;
+      return { ...(columns != null ? {
+          columns
+        } : {}),
+        bounds: 'full',
+        // Use align each so it can work with multiple plots with different size
+        align: 'each'
+      };
+    }
+
+  }
+
+  function isFalseOrNull(v) {
+    return v === false || v === null;
+  }
+
+  const AXIS_COMPONENT_PROPERTIES_INDEX = {
+    disable: 1,
+    gridScale: 1,
+    scale: 1,
+    ...COMMON_AXIS_PROPERTIES_INDEX,
+    labelExpr: 1,
+    encode: 1
+  };
+  const AXIS_COMPONENT_PROPERTIES = keys(AXIS_COMPONENT_PROPERTIES_INDEX);
+  class AxisComponent extends Split {
+    constructor() {
+      let explicit = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+      let implicit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+      let mainExtracted = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
+      super();
+      this.explicit = explicit;
+      this.implicit = implicit;
+      this.mainExtracted = mainExtracted;
+    }
+
+    clone() {
+      return new AxisComponent(duplicate(this.explicit), duplicate(this.implicit), this.mainExtracted);
+    }
+
+    hasAxisPart(part) {
+      // FIXME(https://github.com/vega/vega-lite/issues/2552) this method can be wrong if users use a Vega theme.
+      if (part === 'axis') {
+        // always has the axis container part
+        return true;
+      }
+
+      if (part === 'grid' || part === 'title') {
+        return !!this.get(part);
+      } // Other parts are enabled by default, so they should not be false or null.
+
+
+      return !isFalseOrNull(this.get(part));
+    }
+
+    hasOrientSignalRef() {
+      return isSignalRef(this.explicit.orient);
+    }
+
+  }
+
+  function labels(model, channel, specifiedLabelsSpec) {
+    var _getFieldOrDatumDef;
+
+    const {
+      encoding,
+      config
+    } = model;
+    const fieldOrDatumDef = (_getFieldOrDatumDef = getFieldOrDatumDef(encoding[channel])) !== null && _getFieldOrDatumDef !== void 0 ? _getFieldOrDatumDef : getFieldOrDatumDef(encoding[getSecondaryRangeChannel(channel)]);
+    const axis = model.axis(channel) || {};
+    const {
+      format,
+      formatType
+    } = axis;
+
+    if (isCustomFormatType(formatType)) {
+      return {
+        text: formatCustomType({
+          fieldOrDatumDef,
+          field: 'datum.value',
+          format,
+          formatType,
+          config
+        }),
+        ...specifiedLabelsSpec
+      };
+    }
+
+    return specifiedLabelsSpec;
+  }
+
+  function parseUnitAxes(model) {
+    return POSITION_SCALE_CHANNELS.reduce((axis, channel) => {
+      if (model.component.scales[channel]) {
+        axis[channel] = [parseAxis(channel, model)];
+      }
+
+      return axis;
+    }, {});
+  }
+  const OPPOSITE_ORIENT = {
+    bottom: 'top',
+    top: 'bottom',
+    left: 'right',
+    right: 'left'
+  };
+  function parseLayerAxes(model) {
+    const {
+      axes,
+      resolve
+    } = model.component;
+    const axisCount = {
+      top: 0,
+      bottom: 0,
+      right: 0,
+      left: 0
+    };
+
+    for (const child of model.children) {
+      child.parseAxesAndHeaders();
+
+      for (const channel of keys(child.component.axes)) {
+        resolve.axis[channel] = parseGuideResolve(model.component.resolve, channel);
+
+        if (resolve.axis[channel] === 'shared') {
+          // If the resolve says shared (and has not been overridden)
+          // We will try to merge and see if there is a conflict
+          axes[channel] = mergeAxisComponents(axes[channel], child.component.axes[channel]);
+
+          if (!axes[channel]) {
+            // If merge returns nothing, there is a conflict so we cannot make the axis shared.
+            // Thus, mark axis as independent and remove the axis component.
+            resolve.axis[channel] = 'independent';
+            delete axes[channel];
+          }
+        }
+      }
+    } // Move axes to layer's axis component and merge shared axes
+
+
+    for (const channel of POSITION_SCALE_CHANNELS) {
+      for (const child of model.children) {
+        if (!child.component.axes[channel]) {
+          // skip if the child does not have a particular axis
+          continue;
+        }
+
+        if (resolve.axis[channel] === 'independent') {
+          var _axes$channel;
+
+          // If axes are independent, concat the axisComponent array.
+          axes[channel] = ((_axes$channel = axes[channel]) !== null && _axes$channel !== void 0 ? _axes$channel : []).concat(child.component.axes[channel]); // Automatically adjust orient
+
+          for (const axisComponent of child.component.axes[channel]) {
+            const {
+              value: orient,
+              explicit
+            } = axisComponent.getWithExplicit('orient');
+
+            if (isSignalRef(orient)) {
+              continue;
+            }
+
+            if (axisCount[orient] > 0 && !explicit) {
+              // Change axis orient if the number do not match
+              const oppositeOrient = OPPOSITE_ORIENT[orient];
+
+              if (axisCount[orient] > axisCount[oppositeOrient]) {
+                axisComponent.set('orient', oppositeOrient, false);
+              }
+            }
+
+            axisCount[orient]++; // TODO(https://github.com/vega/vega-lite/issues/2634): automatically add extra offset?
+          }
+        } // After merging, make sure to remove axes from child
+
+
+        delete child.component.axes[channel];
+      } // Suppress grid lines for dual axis charts (https://github.com/vega/vega-lite/issues/4676)
+
+
+      if (resolve.axis[channel] === 'independent' && axes[channel] && axes[channel].length > 1) {
+        for (const axisCmpt of axes[channel]) {
+          if (!!axisCmpt.get('grid') && !axisCmpt.explicit.grid) {
+            axisCmpt.implicit.grid = false;
+          }
+        }
+      }
+    }
+  }
+
+  function mergeAxisComponents(mergedAxisCmpts, childAxisCmpts) {
+    if (mergedAxisCmpts) {
+      // FIXME: this is a bit wrong once we support multiple axes
+      if (mergedAxisCmpts.length !== childAxisCmpts.length) {
+        return undefined; // Cannot merge axis component with different number of axes.
+      }
+
+      const length = mergedAxisCmpts.length;
+
+      for (let i = 0; i < length; i++) {
+        const merged = mergedAxisCmpts[i];
+        const child = childAxisCmpts[i];
+
+        if (!!merged !== !!child) {
+          return undefined;
+        } else if (merged && child) {
+          const mergedOrient = merged.getWithExplicit('orient');
+          const childOrient = child.getWithExplicit('orient');
+
+          if (mergedOrient.explicit && childOrient.explicit && mergedOrient.value !== childOrient.value) {
+            // TODO: throw warning if resolve is explicit (We don't have info about explicit/implicit resolve yet.)
+            // Cannot merge due to inconsistent orient
+            return undefined;
+          } else {
+            mergedAxisCmpts[i] = mergeAxisComponent(merged, child);
+          }
+        }
+      }
+    } else {
+      // For first one, return a copy of the child
+      return childAxisCmpts.map(axisComponent => axisComponent.clone());
+    }
+
+    return mergedAxisCmpts;
+  }
+
+  function mergeAxisComponent(merged, child) {
+    for (const prop of AXIS_COMPONENT_PROPERTIES) {
+      const mergedValueWithExplicit = mergeValuesWithExplicit(merged.getWithExplicit(prop), child.getWithExplicit(prop), prop, 'axis', // Tie breaker function
+      (v1, v2) => {
+        switch (prop) {
+          case 'title':
+            return mergeTitleComponent(v1, v2);
+
+          case 'gridScale':
+            return {
+              explicit: v1.explicit,
+              // keep the old explicit
+              value: getFirstDefined(v1.value, v2.value)
+            };
+        }
+
+        return defaultTieBreaker(v1, v2, prop, 'axis');
+      });
+      merged.setWithExplicit(prop, mergedValueWithExplicit);
+    }
+
+    return merged;
+  }
+
+  function isExplicit(value, property, axis, model, channel) {
+    if (property === 'disable') {
+      return axis !== undefined; // if axis is specified or null/false, then its enable/disable state is explicit
+    }
+
+    axis = axis || {};
+
+    switch (property) {
+      case 'titleAngle':
+      case 'labelAngle':
+        return value === (isSignalRef(axis.labelAngle) ? axis.labelAngle : normalizeAngle(axis.labelAngle));
+
+      case 'values':
+        return !!axis.values;
+      // specified axis.values is already respected, but may get transformed.
+
+      case 'encode':
+        // both VL axis.encoding and axis.labelAngle affect VG axis.encode
+        return !!axis.encoding || !!axis.labelAngle;
+
+      case 'title':
+        // title can be explicit if fieldDef.title is set
+        if (value === getFieldDefTitle(model, channel)) {
+          return true;
+        }
+
+    } // Otherwise, things are explicit if the returned value matches the specified property
+
+
+    return value === axis[property];
+  }
+  /**
+   * Properties to always include values from config
+   */
+
+
+  const propsToAlwaysIncludeConfig = new Set(['grid', // Grid is an exception because we need to set grid = true to generate another grid axis
+  'translate', // translate has dependent logic for bar's bin position and it's 0.5 by default in Vega. If a config overrides this value, we need to know.
+  // the rest are not axis configs in Vega, but are in VL, so we need to set too.
+  'format', 'formatType', 'orient', 'labelExpr', 'tickCount', 'position', 'tickMinStep']);
+
+  function parseAxis(channel, model) {
+    var _axis, _config, _config$axis, _axis2, _axis$encoding;
+
+    let axis = model.axis(channel);
+    const axisComponent = new AxisComponent();
+    const fieldOrDatumDef = getFieldOrDatumDef(model.encoding[channel]);
+    const {
+      mark,
+      config
+    } = model;
+    const orient = ((_axis = axis) === null || _axis === void 0 ? void 0 : _axis.orient) || ((_config = config[channel === 'x' ? 'axisX' : 'axisY']) === null || _config === void 0 ? void 0 : _config.orient) || ((_config$axis = config.axis) === null || _config$axis === void 0 ? void 0 : _config$axis.orient) || defaultOrient(channel);
+    const scaleType = model.getScaleComponent(channel).get('type');
+    const axisConfigs = getAxisConfigs(channel, scaleType, orient, model.config);
+    const disable = axis !== undefined ? !axis : getAxisConfig('disable', config.style, (_axis2 = axis) === null || _axis2 === void 0 ? void 0 : _axis2.style, axisConfigs).configValue;
+    axisComponent.set('disable', disable, axis !== undefined);
+
+    if (disable) {
+      return axisComponent;
+    }
+
+    axis = axis || {};
+    const labelAngle = getLabelAngle(fieldOrDatumDef, axis, channel, config.style, axisConfigs);
+    const ruleParams = {
+      fieldOrDatumDef,
+      axis,
+      channel,
+      model,
+      scaleType,
+      orient,
+      labelAngle,
+      mark,
+      config
+    }; // 1.2. Add properties
+
+    for (const property of AXIS_COMPONENT_PROPERTIES) {
+      const value = property in axisRules ? axisRules[property](ruleParams) : isAxisProperty(property) ? axis[property] : undefined;
+      const hasValue = value !== undefined;
+      const explicit = isExplicit(value, property, axis, model, channel);
+
+      if (hasValue && explicit) {
+        axisComponent.set(property, value, explicit);
+      } else {
+        const {
+          configValue = undefined,
+          configFrom = undefined
+        } = isAxisProperty(property) && property !== 'values' ? getAxisConfig(property, config.style, axis.style, axisConfigs) : {};
+        const hasConfigValue = configValue !== undefined;
+
+        if (hasValue && !hasConfigValue) {
+          // only set property if it is explicitly set or has no config value (otherwise we will accidentally override config)
+          axisComponent.set(property, value, explicit);
+        } else if ( // Cases need implicit values
+        // 1. Axis config that aren't available in Vega
+        !(configFrom === 'vgAxisConfig') || // 2. Certain properties are always included (see `propsToAlwaysIncludeConfig`'s declaration for more details)
+        propsToAlwaysIncludeConfig.has(property) && hasConfigValue || // 3. Conditional axis values and signals
+        isConditionalAxisValue(configValue) || isSignalRef(configValue)) {
+          // If a config is specified and is conditional, copy conditional value from axis config
+          axisComponent.set(property, configValue, false);
+        }
+      }
+    } // 2) Add guide encode definition groups
+
+
+    const axisEncoding = (_axis$encoding = axis.encoding) !== null && _axis$encoding !== void 0 ? _axis$encoding : {};
+    const axisEncode = AXIS_PARTS.reduce((e, part) => {
+      var _axisEncoding$part;
+
+      if (!axisComponent.hasAxisPart(part)) {
+        // No need to create encode for a disabled part.
+        return e;
+      }
+
+      const axisEncodingPart = guideEncodeEntry((_axisEncoding$part = axisEncoding[part]) !== null && _axisEncoding$part !== void 0 ? _axisEncoding$part : {}, model);
+      const value = part === 'labels' ? labels(model, channel, axisEncodingPart) : axisEncodingPart;
+
+      if (value !== undefined && !isEmpty(value)) {
+        e[part] = {
+          update: value
+        };
+      }
+
+      return e;
+    }, {}); // FIXME: By having encode as one property, we won't have fine grained encode merging.
+
+    if (!isEmpty(axisEncode)) {
+      axisComponent.set('encode', axisEncode, !!axis.encoding || axis.labelAngle !== undefined);
+    }
+
+    return axisComponent;
+  }
+
+  function initLayoutSize(_ref) {
+    let {
+      encoding,
+      size
+    } = _ref;
+
+    for (const channel of POSITION_SCALE_CHANNELS) {
+      const sizeType = getSizeChannel(channel);
+
+      if (isStep(size[sizeType])) {
+        if (isContinuousFieldOrDatumDef(encoding[channel])) {
+          delete size[sizeType];
+          warn(stepDropped(sizeType));
+        }
+      }
+    }
+
+    return size;
+  }
+
+  function initMarkdef(originalMarkDef, encoding, config) {
+    // FIXME: markDef expects that exprRefs are replaced recursively but replaceExprRef only replaces the top level
+    const markDef = replaceExprRef(originalMarkDef); // set orient, which can be overridden by rules as sometimes the specified orient is invalid.
+
+    const specifiedOrient = getMarkPropOrConfig('orient', markDef, config);
+    markDef.orient = orient(markDef.type, encoding, specifiedOrient);
+
+    if (specifiedOrient !== undefined && specifiedOrient !== markDef.orient) {
+      warn(orientOverridden(markDef.orient, specifiedOrient));
+    }
+
+    if (markDef.type === 'bar' && markDef.orient) {
+      const cornerRadiusEnd = getMarkPropOrConfig('cornerRadiusEnd', markDef, config);
+
+      if (cornerRadiusEnd !== undefined) {
+        const newProps = markDef.orient === 'horizontal' && encoding.x2 || markDef.orient === 'vertical' && encoding.y2 ? ['cornerRadius'] : BAR_CORNER_RADIUS_INDEX[markDef.orient];
+
+        for (const newProp of newProps) {
+          markDef[newProp] = cornerRadiusEnd;
+        }
+
+        if (markDef.cornerRadiusEnd !== undefined) {
+          delete markDef.cornerRadiusEnd; // no need to keep the original cap cornerRadius
+        }
+      }
+    } // set opacity and filled if not specified in mark config
+
+
+    const specifiedOpacity = getMarkPropOrConfig('opacity', markDef, config);
+
+    if (specifiedOpacity === undefined) {
+      markDef.opacity = opacity(markDef.type, encoding);
+    } // set cursor, which should be pointer if href channel is present unless otherwise specified
+
+
+    const specifiedCursor = getMarkPropOrConfig('cursor', markDef, config);
+
+    if (specifiedCursor === undefined) {
+      markDef.cursor = cursor(markDef, encoding, config);
+    }
+
+    return markDef;
+  }
+
+  function cursor(markDef, encoding, config) {
+    if (encoding.href || markDef.href || getMarkPropOrConfig('href', markDef, config)) {
+      return 'pointer';
+    }
+
+    return markDef.cursor;
+  }
+
+  function opacity(mark, encoding) {
+    if (contains([POINT, TICK, CIRCLE, SQUARE], mark)) {
+      // point-based marks
+      if (!isAggregate$1(encoding)) {
+        return 0.7;
+      }
+    }
+
+    return undefined;
+  }
+
+  function defaultFilled(markDef, config, _ref) {
+    let {
+      graticule
+    } = _ref;
+
+    if (graticule) {
+      return false;
+    }
+
+    const filledConfig = getMarkConfig('filled', markDef, config);
+    const mark = markDef.type;
+    return getFirstDefined(filledConfig, mark !== POINT && mark !== LINE && mark !== RULE);
+  }
+
+  function orient(mark, encoding, specifiedOrient) {
+    switch (mark) {
+      case POINT:
+      case CIRCLE:
+      case SQUARE:
+      case TEXT:
+      case RECT:
+      case IMAGE:
+        // orient is meaningless for these marks.
+        return undefined;
+    }
+
+    const {
+      x,
+      y,
+      x2,
+      y2
+    } = encoding;
+
+    switch (mark) {
+      case BAR:
+        if (isFieldDef(x) && (isBinned(x.bin) || isFieldDef(y) && y.aggregate && !x.aggregate)) {
+          return 'vertical';
+        }
+
+        if (isFieldDef(y) && (isBinned(y.bin) || isFieldDef(x) && x.aggregate && !y.aggregate)) {
+          return 'horizontal';
+        }
+
+        if (y2 || x2) {
+          // Ranged bar does not always have clear orientation, so we allow overriding
+          if (specifiedOrient) {
+            return specifiedOrient;
+          } // If y is range and x is non-range, non-bin Q, y is likely a prebinned field
+
+
+          if (!x2) {
+            if (isFieldDef(x) && x.type === QUANTITATIVE && !isBinning(x.bin) || isNumericDataDef(x)) {
+              return 'horizontal';
+            }
+          } // If x is range and y is non-range, non-bin Q, x is likely a prebinned field
+
+
+          if (!y2) {
+            if (isFieldDef(y) && y.type === QUANTITATIVE && !isBinning(y.bin) || isNumericDataDef(y)) {
+              return 'vertical';
+            }
+          }
+        }
+
+      // falls through
+
+      case RULE:
+        // return undefined for line segment rule and bar with both axis ranged
+        // we have to ignore the case that the data are already binned
+        if (x2 && !(isFieldDef(x) && isBinned(x.bin)) && y2 && !(isFieldDef(y) && isBinned(y.bin))) {
+          return undefined;
+        }
+
+      // falls through
+
+      case AREA:
+        // If there are range for both x and y, y (vertical) has higher precedence.
+        if (y2) {
+          if (isFieldDef(y) && isBinned(y.bin)) {
+            return 'horizontal';
+          } else {
+            return 'vertical';
+          }
+        } else if (x2) {
+          if (isFieldDef(x) && isBinned(x.bin)) {
+            return 'vertical';
+          } else {
+            return 'horizontal';
+          }
+        } else if (mark === RULE) {
+          if (x && !y) {
+            return 'vertical';
+          } else if (y && !x) {
+            return 'horizontal';
+          }
+        }
+
+      // falls through
+
+      case LINE:
+      case TICK:
+        {
+          // Tick is opposite to bar, line, area and never have ranged mark.
+          const xIsContinuous = isContinuousFieldOrDatumDef(x);
+          const yIsContinuous = isContinuousFieldOrDatumDef(y);
+
+          if (specifiedOrient) {
+            return specifiedOrient;
+          } else if (xIsContinuous && !yIsContinuous) {
+            return mark !== 'tick' ? 'horizontal' : 'vertical';
+          } else if (!xIsContinuous && yIsContinuous) {
+            return mark !== 'tick' ? 'vertical' : 'horizontal';
+          } else if (xIsContinuous && yIsContinuous) {
+            const xDef = x; // we can cast here since they are surely fieldDef
+
+            const yDef = y;
+            const xIsTemporal = xDef.type === TEMPORAL;
+            const yIsTemporal = yDef.type === TEMPORAL; // temporal without timeUnit is considered continuous, but better serves as dimension
+
+            if (xIsTemporal && !yIsTemporal) {
+              return mark !== 'tick' ? 'vertical' : 'horizontal';
+            } else if (!xIsTemporal && yIsTemporal) {
+              return mark !== 'tick' ? 'horizontal' : 'vertical';
+            }
+
+            if (!xDef.aggregate && yDef.aggregate) {
+              return mark !== 'tick' ? 'vertical' : 'horizontal';
+            } else if (xDef.aggregate && !yDef.aggregate) {
+              return mark !== 'tick' ? 'horizontal' : 'vertical';
+            }
+
+            return 'vertical';
+          } else {
+            return undefined;
+          }
+        }
+    }
+
+    return 'vertical';
+  }
+
+  const arc = {
+    vgMark: 'arc',
+    encodeEntry: model => {
+      return { ...baseEncodeEntry(model, {
+          align: 'ignore',
+          baseline: 'ignore',
+          color: 'include',
+          size: 'ignore',
+          orient: 'ignore',
+          theta: 'ignore'
+        }),
+        ...pointPosition('x', model, {
+          defaultPos: 'mid'
+        }),
+        ...pointPosition('y', model, {
+          defaultPos: 'mid'
+        }),
+        // arcs are rectangles in polar coordinates
+        ...rectPosition(model, 'radius'),
+        ...rectPosition(model, 'theta')
+      };
+    }
+  };
+
+  const area = {
+    vgMark: 'area',
+    encodeEntry: model => {
+      return { ...baseEncodeEntry(model, {
+          align: 'ignore',
+          baseline: 'ignore',
+          color: 'include',
+          orient: 'include',
+          size: 'ignore',
+          theta: 'ignore'
+        }),
+        ...pointOrRangePosition('x', model, {
+          defaultPos: 'zeroOrMin',
+          defaultPos2: 'zeroOrMin',
+          range: model.markDef.orient === 'horizontal'
+        }),
+        ...pointOrRangePosition('y', model, {
+          defaultPos: 'zeroOrMin',
+          defaultPos2: 'zeroOrMin',
+          range: model.markDef.orient === 'vertical'
+        }),
+        ...defined(model)
+      };
+    }
+  };
+
+  const bar = {
+    vgMark: 'rect',
+    encodeEntry: model => {
+      return { ...baseEncodeEntry(model, {
+          align: 'ignore',
+          baseline: 'ignore',
+          color: 'include',
+          orient: 'ignore',
+          size: 'ignore',
+          theta: 'ignore'
+        }),
+        ...rectPosition(model, 'x'),
+        ...rectPosition(model, 'y')
+      };
+    }
+  };
+
+  const geoshape = {
+    vgMark: 'shape',
+    encodeEntry: model => {
+      return { ...baseEncodeEntry(model, {
+          align: 'ignore',
+          baseline: 'ignore',
+          color: 'include',
+          size: 'ignore',
+          orient: 'ignore',
+          theta: 'ignore'
+        })
+      };
+    },
+    postEncodingTransform: model => {
+      const {
+        encoding
+      } = model;
+      const shapeDef = encoding.shape;
+      const transform = {
+        type: 'geoshape',
+        projection: model.projectionName(),
+        // as: 'shape',
+        ...(shapeDef && isFieldDef(shapeDef) && shapeDef.type === GEOJSON ? {
+          field: vgField(shapeDef, {
+            expr: 'datum'
+          })
+        } : {})
+      };
+      return [transform];
+    }
+  };
+
+  const image = {
+    vgMark: 'image',
+    encodeEntry: model => {
+      return { ...baseEncodeEntry(model, {
+          align: 'ignore',
+          baseline: 'ignore',
+          color: 'ignore',
+          orient: 'ignore',
+          size: 'ignore',
+          theta: 'ignore'
+        }),
+        ...rectPosition(model, 'x'),
+        ...rectPosition(model, 'y'),
+        ...text$1(model, 'url')
+      };
+    }
+  };
+
+  const line = {
+    vgMark: 'line',
+    encodeEntry: model => {
+      return { ...baseEncodeEntry(model, {
+          align: 'ignore',
+          baseline: 'ignore',
+          color: 'include',
+          size: 'ignore',
+          orient: 'ignore',
+          theta: 'ignore'
+        }),
+        ...pointPosition('x', model, {
+          defaultPos: 'mid'
+        }),
+        ...pointPosition('y', model, {
+          defaultPos: 'mid'
+        }),
+        ...nonPosition('size', model, {
+          vgChannel: 'strokeWidth' // VL's line size is strokeWidth
+
+        }),
+        ...defined(model)
+      };
+    }
+  };
+  const trail = {
+    vgMark: 'trail',
+    encodeEntry: model => {
+      return { ...baseEncodeEntry(model, {
+          align: 'ignore',
+          baseline: 'ignore',
+          color: 'include',
+          size: 'include',
+          orient: 'ignore',
+          theta: 'ignore'
+        }),
+        ...pointPosition('x', model, {
+          defaultPos: 'mid'
+        }),
+        ...pointPosition('y', model, {
+          defaultPos: 'mid'
+        }),
+        ...nonPosition('size', model),
+        ...defined(model)
+      };
+    }
+  };
+
+  function encodeEntry(model, fixedShape) {
+    const {
+      config
+    } = model;
+    return { ...baseEncodeEntry(model, {
+        align: 'ignore',
+        baseline: 'ignore',
+        color: 'include',
+        size: 'include',
+        orient: 'ignore',
+        theta: 'ignore'
+      }),
+      ...pointPosition('x', model, {
+        defaultPos: 'mid'
+      }),
+      ...pointPosition('y', model, {
+        defaultPos: 'mid'
+      }),
+      ...nonPosition('size', model),
+      ...nonPosition('angle', model),
+      ...shapeMixins(model, config, fixedShape)
+    };
+  }
+
+  function shapeMixins(model, config, fixedShape) {
+    if (fixedShape) {
+      return {
+        shape: {
+          value: fixedShape
+        }
+      };
+    }
+
+    return nonPosition('shape', model);
+  }
+  const point = {
+    vgMark: 'symbol',
+    encodeEntry: model => {
+      return encodeEntry(model);
+    }
+  };
+  const circle = {
+    vgMark: 'symbol',
+    encodeEntry: model => {
+      return encodeEntry(model, 'circle');
+    }
+  };
+  const square = {
+    vgMark: 'symbol',
+    encodeEntry: model => {
+      return encodeEntry(model, 'square');
+    }
+  };
+
+  const rect = {
+    vgMark: 'rect',
+    encodeEntry: model => {
+      return { ...baseEncodeEntry(model, {
+          align: 'ignore',
+          baseline: 'ignore',
+          color: 'include',
+          orient: 'ignore',
+          size: 'ignore',
+          theta: 'ignore'
+        }),
+        ...rectPosition(model, 'x'),
+        ...rectPosition(model, 'y')
+      };
+    }
+  };
+
+  const rule = {
+    vgMark: 'rule',
+    encodeEntry: model => {
+      const {
+        markDef
+      } = model;
+      const orient = markDef.orient;
+
+      if (!model.encoding.x && !model.encoding.y && !model.encoding.latitude && !model.encoding.longitude) {
+        // Show nothing if we have none of x, y, lat, and long.
+        return {};
+      }
+
+      return { ...baseEncodeEntry(model, {
+          align: 'ignore',
+          baseline: 'ignore',
+          color: 'include',
+          orient: 'ignore',
+          size: 'ignore',
+          theta: 'ignore'
+        }),
+        ...pointOrRangePosition('x', model, {
+          defaultPos: orient === 'horizontal' ? 'zeroOrMax' : 'mid',
+          defaultPos2: 'zeroOrMin',
+          range: orient !== 'vertical' // include x2 for horizontal or line segment rule
+
+        }),
+        ...pointOrRangePosition('y', model, {
+          defaultPos: orient === 'vertical' ? 'zeroOrMax' : 'mid',
+          defaultPos2: 'zeroOrMin',
+          range: orient !== 'horizontal' // include y2 for vertical or line segment rule
+
+        }),
+        ...nonPosition('size', model, {
+          vgChannel: 'strokeWidth' // VL's rule size is strokeWidth
+
+        })
+      };
+    }
+  };
+
+  const text = {
+    vgMark: 'text',
+    encodeEntry: model => {
+      const {
+        config,
+        encoding
+      } = model;
+      return { ...baseEncodeEntry(model, {
+          align: 'include',
+          baseline: 'include',
+          color: 'include',
+          size: 'ignore',
+          orient: 'ignore',
+          theta: 'include'
+        }),
+        ...pointPosition('x', model, {
+          defaultPos: 'mid'
+        }),
+        ...pointPosition('y', model, {
+          defaultPos: 'mid'
+        }),
+        ...text$1(model),
+        ...nonPosition('size', model, {
+          vgChannel: 'fontSize' // VL's text size is fontSize
+
+        }),
+        ...nonPosition('angle', model),
+        ...valueIfDefined('align', align(model.markDef, encoding, config)),
+        ...valueIfDefined('baseline', baseline(model.markDef, encoding, config)),
+        ...pointPosition('radius', model, {
+          defaultPos: null
+        }),
+        ...pointPosition('theta', model, {
+          defaultPos: null
+        })
+      };
+    }
+  };
+
+  function align(markDef, encoding, config) {
+    const a = getMarkPropOrConfig('align', markDef, config);
+
+    if (a === undefined) {
+      return 'center';
+    } // If there is a config, Vega-parser will process this already.
+
+
+    return undefined;
+  }
+
+  function baseline(markDef, encoding, config) {
+    const b = getMarkPropOrConfig('baseline', markDef, config);
+
+    if (b === undefined) {
+      return 'middle';
+    } // If there is a config, Vega-parser will process this already.
+
+
+    return undefined;
+  }
+
+  const tick = {
+    vgMark: 'rect',
+    encodeEntry: model => {
+      const {
+        config,
+        markDef
+      } = model;
+      const orient = markDef.orient;
+      const vgSizeChannel = orient === 'horizontal' ? 'width' : 'height';
+      const vgThicknessChannel = orient === 'horizontal' ? 'height' : 'width';
+      return { ...baseEncodeEntry(model, {
+          align: 'ignore',
+          baseline: 'ignore',
+          color: 'include',
+          orient: 'ignore',
+          size: 'ignore',
+          theta: 'ignore'
+        }),
+        ...pointPosition('x', model, {
+          defaultPos: 'mid',
+          vgChannel: 'xc'
+        }),
+        ...pointPosition('y', model, {
+          defaultPos: 'mid',
+          vgChannel: 'yc'
+        }),
+        // size / thickness => width / height
+        ...nonPosition('size', model, {
+          defaultValue: defaultSize(model),
+          vgChannel: vgSizeChannel
+        }),
+        [vgThicknessChannel]: signalOrValueRef(getMarkPropOrConfig('thickness', markDef, config))
+      };
+    }
+  };
+
+  function defaultSize(model) {
+    var _getMarkPropOrConfig;
+
+    const {
+      config,
+      markDef
+    } = model;
+    const {
+      orient
+    } = markDef;
+    const vgSizeChannel = orient === 'horizontal' ? 'width' : 'height';
+    const scale = model.getScaleComponent(orient === 'horizontal' ? 'x' : 'y');
+    const markPropOrConfig = (_getMarkPropOrConfig = getMarkPropOrConfig('size', markDef, config, {
+      vgChannel: vgSizeChannel
+    })) !== null && _getMarkPropOrConfig !== void 0 ? _getMarkPropOrConfig : config.tick.bandSize;
+
+    if (markPropOrConfig !== undefined) {
+      return markPropOrConfig;
+    } else {
+      const scaleRange = scale ? scale.get('range') : undefined;
+
+      if (scaleRange && isVgRangeStep(scaleRange) && vega.isNumber(scaleRange.step)) {
+        return scaleRange.step * 3 / 4;
+      }
+
+      const defaultViewStep = getViewConfigDiscreteStep(config.view, vgSizeChannel);
+      return defaultViewStep * 3 / 4;
+    }
+  }
+
+  const markCompiler = {
+    arc,
+    area,
+    bar,
+    circle,
+    geoshape,
+    image,
+    line,
+    point,
+    rect,
+    rule,
+    square,
+    text,
+    tick,
+    trail
+  };
+  function parseMarkGroups(model) {
+    if (contains([LINE, AREA, TRAIL], model.mark)) {
+      const details = pathGroupingFields(model.mark, model.encoding);
+
+      if (details.length > 0) {
+        return getPathGroups(model, details);
+      } // otherwise use standard mark groups
+
+    } else if (model.mark === BAR) {
+      const hasCornerRadius = VG_CORNERRADIUS_CHANNELS.some(prop => getMarkPropOrConfig(prop, model.markDef, model.config));
+
+      if (model.stack && !model.fieldDef('size') && hasCornerRadius) {
+        return getGroupsForStackedBarWithCornerRadius(model);
+      }
+    }
+
+    return getMarkGroup(model);
+  }
+  const FACETED_PATH_PREFIX = 'faceted_path_';
+
+  function getPathGroups(model, details) {
+    // TODO: for non-stacked plot, map order to zindex. (Maybe rename order for layer to zindex?)
+    return [{
+      name: model.getName('pathgroup'),
+      type: 'group',
+      from: {
+        facet: {
+          name: FACETED_PATH_PREFIX + model.requestDataName(DataSourceType.Main),
+          data: model.requestDataName(DataSourceType.Main),
+          groupby: details
+        }
+      },
+      encode: {
+        update: {
+          width: {
+            field: {
+              group: 'width'
+            }
+          },
+          height: {
+            field: {
+              group: 'height'
+            }
+          }
+        }
+      },
+      // With subfacet for line/area group, need to use faceted data from above.
+      marks: getMarkGroup(model, {
+        fromPrefix: FACETED_PATH_PREFIX
+      })
+    }];
+  }
+
+  const STACK_GROUP_PREFIX = 'stack_group_';
+  /**
+   * We need to put stacked bars into groups in order to enable cornerRadius for stacks.
+   * If stack is used and the model doesn't have size encoding, we put the mark into groups,
+   * and apply cornerRadius properties at the group.
+   */
+
+  function getGroupsForStackedBarWithCornerRadius(model) {
+    var _model$stack$groupbyC;
+
+    // Generate the mark
+    const [mark] = getMarkGroup(model, {
+      fromPrefix: STACK_GROUP_PREFIX
+    }); // Get the scale for the stacked field
+
+    const fieldScale = model.scaleName(model.stack.fieldChannel);
+
+    const stackField = function () {
+      let opt = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+      return model.vgField(model.stack.fieldChannel, opt);
+    }; // Find the min/max of the pixel value on the stacked direction
+
+
+    const stackFieldGroup = (func, expr) => {
+      const vgFieldMinMax = [stackField({
+        prefix: 'min',
+        suffix: 'start',
+        expr
+      }), stackField({
+        prefix: 'max',
+        suffix: 'start',
+        expr
+      }), stackField({
+        prefix: 'min',
+        suffix: 'end',
+        expr
+      }), stackField({
+        prefix: 'max',
+        suffix: 'end',
+        expr
+      })];
+      return "".concat(func, "(").concat(vgFieldMinMax.map(field => "scale('".concat(fieldScale, "',").concat(field, ")")).join(','), ")");
+    };
+
+    let groupUpdate;
+    let innerGroupUpdate; // Build the encoding for group and an inner group
+
+    if (model.stack.fieldChannel === 'x') {
+      // Move cornerRadius, y/yc/y2/height properties to group
+      // Group x/x2 should be the min/max of the marks within
+      groupUpdate = { ...pick(mark.encode.update, ['y', 'yc', 'y2', 'height', ...VG_CORNERRADIUS_CHANNELS]),
+        x: {
+          signal: stackFieldGroup('min', 'datum')
+        },
+        x2: {
+          signal: stackFieldGroup('max', 'datum')
+        },
+        clip: {
+          value: true
+        }
+      }; // Inner group should revert the x translation, and pass height through
+
+      innerGroupUpdate = {
+        x: {
+          field: {
+            group: 'x'
+          },
+          mult: -1
+        },
+        height: {
+          field: {
+            group: 'height'
+          }
+        }
+      }; // The marks should use the same height as group, without y/yc/y2 properties (because it's already done by group)
+      // This is why size encoding is not supported yet
+
+      mark.encode.update = { ...omit(mark.encode.update, ['y', 'yc', 'y2']),
+        height: {
+          field: {
+            group: 'height'
+          }
+        }
+      };
+    } else {
+      groupUpdate = { ...pick(mark.encode.update, ['x', 'xc', 'x2', 'width']),
+        y: {
+          signal: stackFieldGroup('min', 'datum')
+        },
+        y2: {
+          signal: stackFieldGroup('max', 'datum')
+        },
+        clip: {
+          value: true
+        }
+      };
+      innerGroupUpdate = {
+        y: {
+          field: {
+            group: 'y'
+          },
+          mult: -1
+        },
+        width: {
+          field: {
+            group: 'width'
+          }
+        }
+      };
+      mark.encode.update = { ...omit(mark.encode.update, ['x', 'xc', 'x2']),
+        width: {
+          field: {
+            group: 'width'
+          }
+        }
+      };
+    } // Deal with cornerRadius properties
+
+
+    for (const key of VG_CORNERRADIUS_CHANNELS) {
+      const configValue = getMarkConfig(key, model.markDef, model.config); // Move from mark to group
+
+      if (mark.encode.update[key]) {
+        groupUpdate[key] = mark.encode.update[key];
+        delete mark.encode.update[key];
+      } else if (configValue) {
+        groupUpdate[key] = signalOrValueRef(configValue);
+      } // Overwrite any cornerRadius on mark set by config --- they are already moved to the group
+
+
+      if (configValue) {
+        mark.encode.update[key] = {
+          value: 0
+        };
+      }
+    }
+
+    const groupby = [];
+
+    if (((_model$stack$groupbyC = model.stack.groupbyChannels) === null || _model$stack$groupbyC === void 0 ? void 0 : _model$stack$groupbyC.length) > 0) {
+      for (const groupbyChannel of model.stack.groupbyChannels) {
+        // For bin and time unit, we have to add bin/timeunit -end channels.
+        const groupByField = model.fieldDef(groupbyChannel);
+        const field = vgField(groupByField);
+
+        if (field) {
+          groupby.push(field);
+        }
+
+        if (groupByField !== null && groupByField !== void 0 && groupByField.bin || groupByField !== null && groupByField !== void 0 && groupByField.timeUnit) {
+          groupby.push(vgField(groupByField, {
+            binSuffix: 'end'
+          }));
+        }
+      }
+    }
+
+    const strokeProperties = ['stroke', 'strokeWidth', 'strokeJoin', 'strokeCap', 'strokeDash', 'strokeDashOffset', 'strokeMiterLimit', 'strokeOpacity']; // Generate stroke properties for the group
+
+    groupUpdate = strokeProperties.reduce((encode, prop) => {
+      if (mark.encode.update[prop]) {
+        return { ...encode,
+          [prop]: mark.encode.update[prop]
+        };
+      } else {
+        const configValue = getMarkConfig(prop, model.markDef, model.config);
+
+        if (configValue !== undefined) {
+          return { ...encode,
+            [prop]: signalOrValueRef(configValue)
+          };
+        } else {
+          return encode;
+        }
+      }
+    }, groupUpdate); // Apply strokeForeground and strokeOffset if stroke is used
+
+    if (groupUpdate.stroke) {
+      groupUpdate.strokeForeground = {
+        value: true
+      };
+      groupUpdate.strokeOffset = {
+        value: 0
+      };
+    }
+
+    return [{
+      type: 'group',
+      from: {
+        facet: {
+          data: model.requestDataName(DataSourceType.Main),
+          name: STACK_GROUP_PREFIX + model.requestDataName(DataSourceType.Main),
+          groupby,
+          aggregate: {
+            fields: [stackField({
+              suffix: 'start'
+            }), stackField({
+              suffix: 'start'
+            }), stackField({
+              suffix: 'end'
+            }), stackField({
+              suffix: 'end'
+            })],
+            ops: ['min', 'max', 'min', 'max']
+          }
+        }
+      },
+      encode: {
+        update: groupUpdate
+      },
+      marks: [{
+        type: 'group',
+        encode: {
+          update: innerGroupUpdate
+        },
+        marks: [mark]
+      }]
+    }];
+  }
+
+  function getSort(model) {
+    const {
+      encoding,
+      stack,
+      mark,
+      markDef,
+      config
+    } = model;
+    const order = encoding.order;
+
+    if (!vega.isArray(order) && isValueDef(order) && isNullOrFalse(order.value) || !order && isNullOrFalse(getMarkPropOrConfig('order', markDef, config))) {
+      return undefined;
+    } else if ((vega.isArray(order) || isFieldDef(order)) && !stack) {
+      // Sort by the order field if it is specified and the field is not stacked. (For stacked field, order specify stack order.)
+      return sortParams(order, {
+        expr: 'datum'
+      });
+    } else if (isPathMark(mark)) {
+      // For both line and area, we sort values based on dimension by default
+      const dimensionChannel = markDef.orient === 'horizontal' ? 'y' : 'x';
+      const dimensionChannelDef = encoding[dimensionChannel];
+
+      if (isFieldDef(dimensionChannelDef)) {
+        const s = dimensionChannelDef.sort;
+
+        if (vega.isArray(s)) {
+          return {
+            field: vgField(dimensionChannelDef, {
+              prefix: dimensionChannel,
+              suffix: 'sort_index',
+              expr: 'datum'
+            })
+          };
+        } else if (isSortField(s)) {
+          return {
+            field: vgField({
+              // FIXME: this op might not already exist?
+              // FIXME: what if dimensionChannel (x or y) contains custom domain?
+              aggregate: isAggregate$1(model.encoding) ? s.op : undefined,
+              field: s.field
+            }, {
+              expr: 'datum'
+            })
+          };
+        } else if (isSortByEncoding(s)) {
+          const fieldDefToSort = model.fieldDef(s.encoding);
+          return {
+            field: vgField(fieldDefToSort, {
+              expr: 'datum'
+            }),
+            order: s.order
+          };
+        } else if (s === null) {
+          return undefined;
+        } else {
+          var _model$stack;
+
+          return {
+            field: vgField(dimensionChannelDef, {
+              // For stack with imputation, we only have bin_mid
+              binSuffix: (_model$stack = model.stack) !== null && _model$stack !== void 0 && _model$stack.impute ? 'mid' : undefined,
+              expr: 'datum'
+            })
+          };
+        }
+      }
+
+      return undefined;
+    }
+
+    return undefined;
+  }
+
+  function getMarkGroup(model) {
+    let opt = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
+      fromPrefix: ''
+    };
+    const {
+      mark,
+      markDef,
+      encoding,
+      config
+    } = model;
+    const clip = getFirstDefined(markDef.clip, scaleClip(model), projectionClip(model));
+    const style = getStyles(markDef);
+    const key = encoding.key;
+    const sort = getSort(model);
+    const interactive = interactiveFlag(model);
+    const aria = getMarkPropOrConfig('aria', markDef, config);
+    const postEncodingTransform = markCompiler[mark].postEncodingTransform ? markCompiler[mark].postEncodingTransform(model) : null;
+    return [{
+      name: model.getName('marks'),
+      type: markCompiler[mark].vgMark,
+      ...(clip ? {
+        clip: true
+      } : {}),
+      ...(style ? {
+        style
+      } : {}),
+      ...(key ? {
+        key: key.field
+      } : {}),
+      ...(sort ? {
+        sort
+      } : {}),
+      ...(interactive ? interactive : {}),
+      ...(aria === false ? {
+        aria
+      } : {}),
+      from: {
+        data: opt.fromPrefix + model.requestDataName(DataSourceType.Main)
+      },
+      encode: {
+        update: markCompiler[mark].encodeEntry(model)
+      },
+      ...(postEncodingTransform ? {
+        transform: postEncodingTransform
+      } : {})
+    }];
+  }
+  /**
+   * If scales are bound to interval selections, we want to automatically clip
+   * marks to account for panning/zooming interactions. We identify bound scales
+   * by the selectionExtent property, which gets added during scale parsing.
+   */
+
+
+  function scaleClip(model) {
+    const xScale = model.getScaleComponent('x');
+    const yScale = model.getScaleComponent('y');
+    return xScale !== null && xScale !== void 0 && xScale.get('selectionExtent') || yScale !== null && yScale !== void 0 && yScale.get('selectionExtent') ? true : undefined;
+  }
+  /**
+   * If we use a custom projection with auto-fitting to the geodata extent,
+   * we need to clip to ensure the chart size doesn't explode.
+   */
+
+
+  function projectionClip(model) {
+    const projection = model.component.projection;
+    return projection && !projection.isFit ? true : undefined;
+  }
+  /**
+   * Only output interactive flags if we have selections defined somewhere in our model hierarchy.
+   */
+
+
+  function interactiveFlag(model) {
+    if (!model.component.selection) return null;
+    const unitCount = keys(model.component.selection).length;
+    let parentCount = unitCount;
+    let parent = model.parent;
+
+    while (parent && parentCount === 0) {
+      parentCount = keys(parent.component.selection).length;
+      parent = parent.parent;
+    }
+
+    return parentCount ? {
+      interactive: unitCount > 0 || !!model.encoding.tooltip
+    } : null;
+  }
+
+  /**
+   * Internal model of Vega-Lite specification for the compiler.
+   */
+
+  class UnitModel extends ModelWithField {
+    constructor(spec, parent, parentGivenName) {
+      var _spec$params;
+
+      let parentGivenSize = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
+      let config = arguments.length > 4 ? arguments[4] : undefined;
+      super(spec, 'unit', parent, parentGivenName, config, undefined, isFrameMixins(spec) ? spec.view : undefined);
+
+      _defineProperty(this, "markDef", void 0);
+
+      _defineProperty(this, "encoding", void 0);
+
+      _defineProperty(this, "specifiedScales", {});
+
+      _defineProperty(this, "stack", void 0);
+
+      _defineProperty(this, "specifiedAxes", {});
+
+      _defineProperty(this, "specifiedLegends", {});
+
+      _defineProperty(this, "specifiedProjection", {});
+
+      _defineProperty(this, "selection", []);
+
+      _defineProperty(this, "children", []);
+
+      const markDef = isMarkDef(spec.mark) ? { ...spec.mark
+      } : {
+        type: spec.mark
+      };
+      const mark = markDef.type; // Need to init filled before other mark properties because encoding depends on filled but other mark properties depend on types inside encoding
+
+      if (markDef.filled === undefined) {
+        markDef.filled = defaultFilled(markDef, config, {
+          graticule: spec.data && isGraticuleGenerator(spec.data)
+        });
+      }
+
+      const encoding = this.encoding = initEncoding(spec.encoding || {}, mark, markDef.filled, config);
+      this.markDef = initMarkdef(markDef, encoding, config);
+      this.size = initLayoutSize({
+        encoding,
+        size: isFrameMixins(spec) ? { ...parentGivenSize,
+          ...(spec.width ? {
+            width: spec.width
+          } : {}),
+          ...(spec.height ? {
+            height: spec.height
+          } : {})
+        } : parentGivenSize
+      }); // calculate stack properties
+
+      this.stack = stack(mark, encoding);
+      this.specifiedScales = this.initScales(mark, encoding);
+      this.specifiedAxes = this.initAxes(encoding);
+      this.specifiedLegends = this.initLegends(encoding);
+      this.specifiedProjection = spec.projection; // Selections will be initialized upon parse.
+
+      this.selection = ((_spec$params = spec.params) !== null && _spec$params !== void 0 ? _spec$params : []).filter(p => isSelectionParameter(p));
+    }
+
+    get hasProjection() {
+      const {
+        encoding
+      } = this;
+      const isGeoShapeMark = this.mark === GEOSHAPE;
+      const hasGeoPosition = encoding && GEOPOSITION_CHANNELS.some(channel => isFieldOrDatumDef(encoding[channel]));
+      return isGeoShapeMark || hasGeoPosition;
+    }
+    /**
+     * Return specified Vega-Lite scale domain for a particular channel
+     * @param channel
+     */
+
+
+    scaleDomain(channel) {
+      const scale = this.specifiedScales[channel];
+      return scale ? scale.domain : undefined;
+    }
+
+    axis(channel) {
+      return this.specifiedAxes[channel];
+    }
+
+    legend(channel) {
+      return this.specifiedLegends[channel];
+    }
+
+    initScales(mark, encoding) {
+      return SCALE_CHANNELS.reduce((scales, channel) => {
+        const fieldOrDatumDef = getFieldOrDatumDef(encoding[channel]);
+
+        if (fieldOrDatumDef) {
+          var _fieldOrDatumDef$scal;
+
+          scales[channel] = this.initScale((_fieldOrDatumDef$scal = fieldOrDatumDef.scale) !== null && _fieldOrDatumDef$scal !== void 0 ? _fieldOrDatumDef$scal : {});
+        }
+
+        return scales;
+      }, {});
+    }
+
+    initScale(scale) {
+      const {
+        domain,
+        range
+      } = scale; // TODO: we could simplify this function if we had a recursive replace function
+
+      const scaleInternal = replaceExprRef(scale);
+
+      if (vega.isArray(domain)) {
+        scaleInternal.domain = domain.map(signalRefOrValue);
+      }
+
+      if (vega.isArray(range)) {
+        scaleInternal.range = range.map(signalRefOrValue);
+      }
+
+      return scaleInternal;
+    }
+
+    initAxes(encoding) {
+      return POSITION_SCALE_CHANNELS.reduce((_axis, channel) => {
+        // Position Axis
+        // TODO: handle ConditionFieldDef
+        const channelDef = encoding[channel];
+
+        if (isFieldOrDatumDef(channelDef) || channel === X && isFieldOrDatumDef(encoding.x2) || channel === Y && isFieldOrDatumDef(encoding.y2)) {
+          const axisSpec = isFieldOrDatumDef(channelDef) ? channelDef.axis : undefined;
+          _axis[channel] = axisSpec ? this.initAxis({ ...axisSpec
+          }) // convert truthy value to object
+          : axisSpec;
+        }
+
+        return _axis;
+      }, {});
+    }
+
+    initAxis(axis) {
+      const props = keys(axis);
+      const axisInternal = {};
+
+      for (const prop of props) {
+        const val = axis[prop];
+        axisInternal[prop] = isConditionalAxisValue(val) ? signalOrValueRefWithCondition(val) : signalRefOrValue(val);
+      }
+
+      return axisInternal;
+    }
+
+    initLegends(encoding) {
+      return NONPOSITION_SCALE_CHANNELS.reduce((_legend, channel) => {
+        const fieldOrDatumDef = getFieldOrDatumDef(encoding[channel]);
+
+        if (fieldOrDatumDef && supportLegend(channel)) {
+          const legend = fieldOrDatumDef.legend;
+          _legend[channel] = legend ? replaceExprRef(legend) // convert truthy value to object
+          : legend;
+        }
+
+        return _legend;
+      }, {});
+    }
+
+    parseData() {
+      this.component.data = parseData(this);
+    }
+
+    parseLayoutSize() {
+      parseUnitLayoutSize(this);
+    }
+
+    parseSelections() {
+      this.component.selection = parseUnitSelection(this, this.selection);
+    }
+
+    parseMarkGroup() {
+      this.component.mark = parseMarkGroups(this);
+    }
+
+    parseAxesAndHeaders() {
+      this.component.axes = parseUnitAxes(this);
+    }
+
+    assembleSelectionTopLevelSignals(signals) {
+      return assembleTopLevelSignals(this, signals);
+    }
+
+    assembleSignals() {
+      return [...assembleAxisSignals(this), ...assembleUnitSelectionSignals(this, [])];
+    }
+
+    assembleSelectionData(data) {
+      return assembleUnitSelectionData(this, data);
+    }
+
+    assembleLayout() {
+      return null;
+    }
+
+    assembleLayoutSignals() {
+      return assembleLayoutSignals(this);
+    }
+
+    assembleMarks() {
+      var _this$component$mark;
+
+      let marks = (_this$component$mark = this.component.mark) !== null && _this$component$mark !== void 0 ? _this$component$mark : []; // If this unit is part of a layer, selections should augment
+      // all in concert rather than each unit individually. This
+      // ensures correct interleaving of clipping and brushed marks.
+
+      if (!this.parent || !isLayerModel(this.parent)) {
+        marks = assembleUnitSelectionMarks(this, marks);
+      }
+
+      return marks.map(this.correctDataNames);
+    }
+
+    assembleGroupStyle() {
+      const {
+        style
+      } = this.view || {};
+
+      if (style !== undefined) {
+        return style;
+      }
+
+      if (this.encoding.x || this.encoding.y) {
+        return 'cell';
+      } else {
+        return undefined;
+      }
+    }
+
+    getMapping() {
+      return this.encoding;
+    }
+
+    get mark() {
+      return this.markDef.type;
+    }
+
+    channelHasField(channel) {
+      return channelHasField(this.encoding, channel);
+    }
+
+    fieldDef(channel) {
+      const channelDef = this.encoding[channel];
+      return getFieldDef(channelDef);
+    }
+
+    typedFieldDef(channel) {
+      const fieldDef = this.fieldDef(channel);
+
+      if (isTypedFieldDef(fieldDef)) {
+        return fieldDef;
+      }
+
+      return null;
+    }
+
+  }
+
+  class LayerModel extends Model {
+    // HACK: This should be (LayerModel | UnitModel)[], but setting the correct type leads to weird error.
+    // So I'm just putting generic Model for now
+    constructor(spec, parent, parentGivenName, parentGivenSize, config) {
+      super(spec, 'layer', parent, parentGivenName, config, spec.resolve, spec.view);
+
+      _defineProperty(this, "children", void 0);
+
+      const layoutSize = { ...parentGivenSize,
+        ...(spec.width ? {
+          width: spec.width
+        } : {}),
+        ...(spec.height ? {
+          height: spec.height
+        } : {})
+      };
+      this.children = spec.layer.map((layer, i) => {
+        if (isLayerSpec(layer)) {
+          return new LayerModel(layer, this, this.getName("layer_".concat(i)), layoutSize, config);
+        } else if (isUnitSpec(layer)) {
+          return new UnitModel(layer, this, this.getName("layer_".concat(i)), layoutSize, config);
+        }
+
+        throw new Error(invalidSpec(layer));
+      });
+    }
+
+    parseData() {
+      this.component.data = parseData(this);
+
+      for (const child of this.children) {
+        child.parseData();
+      }
+    }
+
+    parseLayoutSize() {
+      parseLayerLayoutSize(this);
+    }
+
+    parseSelections() {
+      // Merge selections up the hierarchy so that they may be referenced
+      // across unit specs. Persist their definitions within each child
+      // to assemble signals which remain within output Vega unit groups.
+      this.component.selection = {};
+
+      for (const child of this.children) {
+        child.parseSelections();
+
+        for (const key of keys(child.component.selection)) {
+          this.component.selection[key] = child.component.selection[key];
+        }
+      }
+    }
+
+    parseMarkGroup() {
+      for (const child of this.children) {
+        child.parseMarkGroup();
+      }
+    }
+
+    parseAxesAndHeaders() {
+      parseLayerAxes(this);
+    }
+
+    assembleSelectionTopLevelSignals(signals) {
+      return this.children.reduce((sg, child) => child.assembleSelectionTopLevelSignals(sg), signals);
+    } // TODO: Support same named selections across children.
+
+
+    assembleSignals() {
+      return this.children.reduce((signals, child) => {
+        return signals.concat(child.assembleSignals());
+      }, assembleAxisSignals(this));
+    }
+
+    assembleLayoutSignals() {
+      return this.children.reduce((signals, child) => {
+        return signals.concat(child.assembleLayoutSignals());
+      }, assembleLayoutSignals(this));
+    }
+
+    assembleSelectionData(data) {
+      return this.children.reduce((db, child) => child.assembleSelectionData(db), data);
+    }
+
+    assembleGroupStyle() {
+      const uniqueStyles = new Set();
+
+      for (const child of this.children) {
+        for (const style of vega.array(child.assembleGroupStyle())) {
+          uniqueStyles.add(style);
+        }
+      }
+
+      const styles = Array.from(uniqueStyles);
+      return styles.length > 1 ? styles : styles.length === 1 ? styles[0] : undefined;
+    }
+
+    assembleTitle() {
+      let title = super.assembleTitle();
+
+      if (title) {
+        return title;
+      } // If title does not provide layer, look into children
+
+
+      for (const child of this.children) {
+        title = child.assembleTitle();
+
+        if (title) {
+          return title;
+        }
+      }
+
+      return undefined;
+    }
+
+    assembleLayout() {
+      return null;
+    }
+
+    assembleMarks() {
+      return assembleLayerSelectionMarks(this, this.children.flatMap(child => {
+        return child.assembleMarks();
+      }));
+    }
+
+    assembleLegends() {
+      return this.children.reduce((legends, child) => {
+        return legends.concat(child.assembleLegends());
+      }, assembleLegends(this));
+    }
+
+  }
+
+  function buildModel(spec, parent, parentGivenName, unitSize, config) {
+    if (isFacetSpec(spec)) {
+      return new FacetModel(spec, parent, parentGivenName, config);
+    } else if (isLayerSpec(spec)) {
+      return new LayerModel(spec, parent, parentGivenName, unitSize, config);
+    } else if (isUnitSpec(spec)) {
+      return new UnitModel(spec, parent, parentGivenName, unitSize, config);
+    } else if (isAnyConcatSpec(spec)) {
+      return new ConcatModel(spec, parent, parentGivenName, config);
+    }
+
+    throw new Error(invalidSpec(spec));
+  }
+
+  /**
+   * Vega-Lite's main function, for compiling Vega-Lite spec into Vega spec.
+   *
+   * At a high-level, we make the following transformations in different phases:
+   *
+   * Input spec
+   *     |
+   *     |  (Normalization)
+   *     v
+   * Normalized Spec (Row/Column channels in single-view specs becomes faceted specs, composite marks becomes layered specs.)
+   *     |
+   *     |  (Build Model)
+   *     v
+   * A model tree of the spec
+   *     |
+   *     |  (Parse)
+   *     v
+   * A model tree with parsed components (intermediate structure of visualization primitives in a format that can be easily merged)
+   *     |
+   *     | (Optimize)
+   *     v
+   * A model tree with parsed components with the data component optimized
+   *     |
+   *     | (Assemble)
+   *     v
+   * Vega spec
+   *
+   * @param inputSpec The Vega-Lite specification.
+   * @param opt       Optional arguments passed to the Vega-Lite compiler.
+   * @returns         An object containing the compiled Vega spec and normalized Vega-Lite spec.
+   */
+  function compile(inputSpec) {
+    let opt = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+    // 0. Augment opt with default opts
+    if (opt.logger) {
+      // set the singleton logger to the provided logger
+      set(opt.logger);
+    }
+
+    if (opt.fieldTitle) {
+      // set the singleton field title formatter
+      setTitleFormatter(opt.fieldTitle);
+    }
+
+    try {
+      // 1. Initialize config by deep merging default config with the config provided via option and the input spec.
+      const config = initConfig(vega.mergeConfig(opt.config, inputSpec.config)); // 2. Normalize: Convert input spec -> normalized spec
+      // - Decompose all extended unit specs into composition of unit spec. For example, a box plot get expanded into multiple layers of bars, ticks, and rules. The shorthand row/column channel is also expanded to a facet spec.
+      // - Normalize autosize and width or height spec
+
+      const spec = normalize(inputSpec, config); // 3. Build Model: normalized spec -> Model (a tree structure)
+      // This phases instantiates the models with default config by doing a top-down traversal. This allows us to pass properties that child models derive from their parents via their constructors.
+      // See the abstract `Model` class and its children (UnitModel, LayerModel, FacetModel, ConcatModel) for different types of models.
+
+      const model = buildModel(spec, null, '', undefined, config); // 4 Parse: Model --> Model with components
+      // Note that components = intermediate representations that are equivalent to Vega specs.
+      // We need these intermediate representation because we need to merge many visualization "components" like projections, scales, axes, and legends.
+      // We will later convert these components into actual Vega specs in the assemble phase.
+      // In this phase, we do a bottom-up traversal over the whole tree to
+      // parse for each type of components once (e.g., data, layout, mark, scale).
+      // By doing bottom-up traversal, we start parsing components of unit specs and
+      // then merge child components of parent composite specs.
+      //
+      // Please see inside model.parse() for order of different components parsed.
+
+      model.parse(); // drawDataflow(model.component.data.sources);
+      // 5. Optimize the dataflow. This will modify the data component of the model.
+
+      optimizeDataflow(model.component.data, model); // drawDataflow(model.component.data.sources);
+      // 6. Assemble: convert model components --> Vega Spec.
+
+      const vgSpec = assembleTopLevelModel(model, getTopLevelProperties(inputSpec, spec.autosize, config, model), inputSpec.datasets, inputSpec.usermeta);
+      return {
+        spec: vgSpec,
+        normalized: spec
+      };
+    } finally {
+      // Reset the singleton logger if a logger is provided
+      if (opt.logger) {
+        reset();
+      } // Reset the singleton field title formatter if provided
+
+
+      if (opt.fieldTitle) {
+        resetTitleFormatter();
+      }
+    }
+  }
+
+  function getTopLevelProperties(inputSpec, autosize, config, model) {
+    const width = model.component.layoutSize.get('width');
+    const height = model.component.layoutSize.get('height');
+
+    if (autosize === undefined) {
+      autosize = {
+        type: 'pad'
+      };
+
+      if (model.hasAxisOrientSignalRef()) {
+        autosize.resize = true;
+      }
+    } else if (vega.isString(autosize)) {
+      autosize = {
+        type: autosize
+      };
+    }
+
+    if (width && height && isFitType(autosize.type)) {
+      if (width === 'step' && height === 'step') {
+        warn(droppingFit());
+        autosize.type = 'pad';
+      } else if (width === 'step' || height === 'step') {
+        // effectively XOR, because else if
+        // get step dimension
+        const sizeType = width === 'step' ? 'width' : 'height'; // log that we're dropping fit for respective channel
+
+        warn(droppingFit(getPositionScaleChannel(sizeType))); // setting type to inverse fit (so if we dropped fit-x, type is now fit-y)
+
+        const inverseSizeType = sizeType === 'width' ? 'height' : 'width';
+        autosize.type = getFitType(inverseSizeType);
+      }
+    }
+
+    return { ...(keys(autosize).length === 1 && autosize.type ? autosize.type === 'pad' ? {} : {
+        autosize: autosize.type
+      } : {
+        autosize
+      }),
+      ...extractTopLevelProperties(config, false),
+      ...extractTopLevelProperties(inputSpec, true)
+    };
+  }
+  /*
+   * Assemble the top-level model to a Vega spec.
+   *
+   * Note: this couldn't be `model.assemble()` since the top-level model
+   * needs some special treatment to generate top-level properties.
+   */
+
+
+  function assembleTopLevelModel(model, topLevelProperties) {
+    let datasets = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+    let usermeta = arguments.length > 3 ? arguments[3] : undefined;
+    // Config with Vega-Lite only config removed.
+    const vgConfig = model.config ? stripAndRedirectConfig(model.config) : undefined;
+    const data = [].concat(model.assembleSelectionData([]), // only assemble data in the root
+    assembleRootData(model.component.data, datasets));
+    const projections = model.assembleProjections();
+    const title = model.assembleTitle();
+    const style = model.assembleGroupStyle();
+    const encodeEntry = model.assembleGroupEncodeEntry(true);
+    let layoutSignals = model.assembleLayoutSignals(); // move width and height signals with values to top level
+
+    layoutSignals = layoutSignals.filter(signal => {
+      if ((signal.name === 'width' || signal.name === 'height') && signal.value !== undefined) {
+        topLevelProperties[signal.name] = +signal.value;
+        return false;
+      }
+
+      return true;
+    });
+    const {
+      params,
+      ...otherTopLevelProps
+    } = topLevelProperties;
+    return {
+      $schema: 'https://vega.github.io/schema/vega/v5.json',
+      ...(model.description ? {
+        description: model.description
+      } : {}),
+      ...otherTopLevelProps,
+      ...(title ? {
+        title
+      } : {}),
+      ...(style ? {
+        style
+      } : {}),
+      ...(encodeEntry ? {
+        encode: {
+          update: encodeEntry
+        }
+      } : {}),
+      data,
+      ...(projections.length > 0 ? {
+        projections
+      } : {}),
+      ...model.assembleGroup([...layoutSignals, ...model.assembleSelectionTopLevelSignals([]), ...assembleParameterSignals(params)]),
+      ...(vgConfig ? {
+        config: vgConfig
+      } : {}),
+      ...(usermeta ? {
+        usermeta
+      } : {})
+    };
+  }
+
+  const version = pkg.version;
+
+  exports.accessPathDepth = accessPathDepth;
+  exports.accessPathWithDatum = accessPathWithDatum;
+  exports.compile = compile;
+  exports.contains = contains;
+  exports.deepEqual = deepEqual;
+  exports.deleteNestedProperty = deleteNestedProperty;
+  exports.duplicate = duplicate;
+  exports.entries = entries$1;
+  exports.every = every;
+  exports.fieldIntersection = fieldIntersection;
+  exports.flatAccessWithDatum = flatAccessWithDatum;
+  exports.getFirstDefined = getFirstDefined;
+  exports.hasIntersection = hasIntersection;
+  exports.hash = hash;
+  exports.internalField = internalField;
+  exports.isBoolean = isBoolean;
+  exports.isEmpty = isEmpty;
+  exports.isEqual = isEqual;
+  exports.isInternalField = isInternalField;
+  exports.isNullOrFalse = isNullOrFalse;
+  exports.isNumeric = isNumeric;
+  exports.keys = keys;
+  exports.logicalExpr = logicalExpr;
+  exports.mergeDeep = mergeDeep;
+  exports.never = never;
+  exports.normalize = normalize;
+  exports.normalizeAngle = normalizeAngle;
+  exports.omit = omit;
+  exports.pick = pick;
+  exports.prefixGenerator = prefixGenerator;
+  exports.removePathFromField = removePathFromField;
+  exports.replaceAll = replaceAll;
+  exports.replacePathInField = replacePathInField;
+  exports.resetIdCounter = resetIdCounter;
+  exports.setEqual = setEqual;
+  exports.some = some;
+  exports.stringify = stringify;
+  exports.titleCase = titleCase;
+  exports.unique = unique;
+  exports.uniqueId = uniqueId;
+  exports.vals = vals;
+  exports.varName = varName;
+  exports.version = version;
+
+  Object.defineProperty(exports, '__esModule', { value: true });
+
+}));
+//# sourceMappingURL=vega-lite.js.map
+</script>
+    <script>(function (global, factory) {
+    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('vega'), require('vega-lite')) :
+    typeof define === 'function' && define.amd ? define(['vega', 'vega-lite'], factory) :
+    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.vegaEmbed = factory(global.vega, global.vegaLite));
+})(this, (function (vegaImport, vegaLiteImport) { 'use strict';
+
+    function _interopNamespace(e) {
+        if (e && e.__esModule) return e;
+        var n = Object.create(null);
+        if (e) {
+            Object.keys(e).forEach(function (k) {
+                if (k !== 'default') {
+                    var d = Object.getOwnPropertyDescriptor(e, k);
+                    Object.defineProperty(n, k, d.get ? d : {
+                        enumerable: true,
+                        get: function () { return e[k]; }
+                    });
+                }
+            });
+        }
+        n["default"] = e;
+        return Object.freeze(n);
+    }
+
+    var vegaImport__namespace = /*#__PURE__*/_interopNamespace(vegaImport);
+    var vegaLiteImport__namespace = /*#__PURE__*/_interopNamespace(vegaLiteImport);
+
+    /*!
+     * https://github.com/Starcounter-Jack/JSON-Patch
+     * (c) 2017 Joachim Wester
+     * MIT license
+     */
+    var __extends = undefined && undefined.__extends || function () {
+      var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf || {
+          __proto__: []
+        } instanceof Array && function (d, b) {
+          d.__proto__ = b;
+        } || function (d, b) {
+          for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+        };
+
+        return extendStatics(d, b);
+      };
+
+      return function (d, b) {
+        extendStatics(d, b);
+
+        function __() {
+          this.constructor = d;
+        }
+
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+      };
+    }();
+
+    var _hasOwnProperty = Object.prototype.hasOwnProperty;
+    function hasOwnProperty(obj, key) {
+      return _hasOwnProperty.call(obj, key);
+    }
+    function _objectKeys(obj) {
+      if (Array.isArray(obj)) {
+        var keys = new Array(obj.length);
+
+        for (var k = 0; k < keys.length; k++) {
+          keys[k] = "" + k;
+        }
+
+        return keys;
+      }
+
+      if (Object.keys) {
+        return Object.keys(obj);
+      }
+
+      var keys = [];
+
+      for (var i in obj) {
+        if (hasOwnProperty(obj, i)) {
+          keys.push(i);
+        }
+      }
+
+      return keys;
+    }
+    /**
+    * Deeply clone the object.
+    * https://jsperf.com/deep-copy-vs-json-stringify-json-parse/25 (recursiveDeepCopy)
+    * @param  {any} obj value to clone
+    * @return {any} cloned obj
+    */
+
+    function _deepClone(obj) {
+      switch (typeof obj) {
+        case "object":
+          return JSON.parse(JSON.stringify(obj));
+        //Faster than ES5 clone - http://jsperf.com/deep-cloning-of-objects/5
+
+        case "undefined":
+          return null;
+        //this is how JSON.stringify behaves for array items
+
+        default:
+          return obj;
+        //no need to clone primitives
+      }
+    } //3x faster than cached /^\d+$/.test(str)
+
+    function isInteger(str) {
+      var i = 0;
+      var len = str.length;
+      var charCode;
+
+      while (i < len) {
+        charCode = str.charCodeAt(i);
+
+        if (charCode >= 48 && charCode <= 57) {
+          i++;
+          continue;
+        }
+
+        return false;
+      }
+
+      return true;
+    }
+    /**
+    * Escapes a json pointer path
+    * @param path The raw pointer
+    * @return the Escaped path
+    */
+
+    function escapePathComponent(path) {
+      if (path.indexOf('/') === -1 && path.indexOf('~') === -1) return path;
+      return path.replace(/~/g, '~0').replace(/\//g, '~1');
+    }
+    /**
+     * Unescapes a json pointer path
+     * @param path The escaped pointer
+     * @return The unescaped path
+     */
+
+    function unescapePathComponent(path) {
+      return path.replace(/~1/g, '/').replace(/~0/g, '~');
+    }
+    /**
+    * Recursively checks whether an object has any undefined values inside.
+    */
+
+    function hasUndefined(obj) {
+      if (obj === undefined) {
+        return true;
+      }
+
+      if (obj) {
+        if (Array.isArray(obj)) {
+          for (var i = 0, len = obj.length; i < len; i++) {
+            if (hasUndefined(obj[i])) {
+              return true;
+            }
+          }
+        } else if (typeof obj === "object") {
+          var objKeys = _objectKeys(obj);
+
+          var objKeysLength = objKeys.length;
+
+          for (var i = 0; i < objKeysLength; i++) {
+            if (hasUndefined(obj[objKeys[i]])) {
+              return true;
+            }
+          }
+        }
+      }
+
+      return false;
+    }
+
+    function patchErrorMessageFormatter(message, args) {
+      var messageParts = [message];
+
+      for (var key in args) {
+        var value = typeof args[key] === 'object' ? JSON.stringify(args[key], null, 2) : args[key]; // pretty print
+
+        if (typeof value !== 'undefined') {
+          messageParts.push(key + ": " + value);
+        }
+      }
+
+      return messageParts.join('\n');
+    }
+
+    var PatchError =
+    /** @class */
+    function (_super) {
+      __extends(PatchError, _super);
+
+      function PatchError(message, name, index, operation, tree) {
+        var _newTarget = this.constructor;
+
+        var _this = _super.call(this, patchErrorMessageFormatter(message, {
+          name: name,
+          index: index,
+          operation: operation,
+          tree: tree
+        })) || this;
+
+        _this.name = name;
+        _this.index = index;
+        _this.operation = operation;
+        _this.tree = tree;
+        Object.setPrototypeOf(_this, _newTarget.prototype); // restore prototype chain, see https://stackoverflow.com/a/48342359
+
+        _this.message = patchErrorMessageFormatter(message, {
+          name: name,
+          index: index,
+          operation: operation,
+          tree: tree
+        });
+        return _this;
+      }
+
+      return PatchError;
+    }(Error);
+
+    var JsonPatchError = PatchError;
+    var deepClone = _deepClone;
+    /* We use a Javascript hash to store each
+     function. Each hash entry (property) uses
+     the operation identifiers specified in rfc6902.
+     In this way, we can map each patch operation
+     to its dedicated function in efficient way.
+     */
+
+    /* The operations applicable to an object */
+
+    var objOps = {
+      add: function (obj, key, document) {
+        obj[key] = this.value;
+        return {
+          newDocument: document
+        };
+      },
+      remove: function (obj, key, document) {
+        var removed = obj[key];
+        delete obj[key];
+        return {
+          newDocument: document,
+          removed: removed
+        };
+      },
+      replace: function (obj, key, document) {
+        var removed = obj[key];
+        obj[key] = this.value;
+        return {
+          newDocument: document,
+          removed: removed
+        };
+      },
+      move: function (obj, key, document) {
+        /* in case move target overwrites an existing value,
+        return the removed value, this can be taxing performance-wise,
+        and is potentially unneeded */
+        var removed = getValueByPointer(document, this.path);
+
+        if (removed) {
+          removed = _deepClone(removed);
+        }
+
+        var originalValue = applyOperation(document, {
+          op: "remove",
+          path: this.from
+        }).removed;
+        applyOperation(document, {
+          op: "add",
+          path: this.path,
+          value: originalValue
+        });
+        return {
+          newDocument: document,
+          removed: removed
+        };
+      },
+      copy: function (obj, key, document) {
+        var valueToCopy = getValueByPointer(document, this.from); // enforce copy by value so further operations don't affect source (see issue #177)
+
+        applyOperation(document, {
+          op: "add",
+          path: this.path,
+          value: _deepClone(valueToCopy)
+        });
+        return {
+          newDocument: document
+        };
+      },
+      test: function (obj, key, document) {
+        return {
+          newDocument: document,
+          test: _areEquals(obj[key], this.value)
+        };
+      },
+      _get: function (obj, key, document) {
+        this.value = obj[key];
+        return {
+          newDocument: document
+        };
+      }
+    };
+    /* The operations applicable to an array. Many are the same as for the object */
+
+    var arrOps = {
+      add: function (arr, i, document) {
+        if (isInteger(i)) {
+          arr.splice(i, 0, this.value);
+        } else {
+          // array props
+          arr[i] = this.value;
+        } // this may be needed when using '-' in an array
+
+
+        return {
+          newDocument: document,
+          index: i
+        };
+      },
+      remove: function (arr, i, document) {
+        var removedList = arr.splice(i, 1);
+        return {
+          newDocument: document,
+          removed: removedList[0]
+        };
+      },
+      replace: function (arr, i, document) {
+        var removed = arr[i];
+        arr[i] = this.value;
+        return {
+          newDocument: document,
+          removed: removed
+        };
+      },
+      move: objOps.move,
+      copy: objOps.copy,
+      test: objOps.test,
+      _get: objOps._get
+    };
+    /**
+     * Retrieves a value from a JSON document by a JSON pointer.
+     * Returns the value.
+     *
+     * @param document The document to get the value from
+     * @param pointer an escaped JSON pointer
+     * @return The retrieved value
+     */
+
+    function getValueByPointer(document, pointer) {
+      if (pointer == '') {
+        return document;
+      }
+
+      var getOriginalDestination = {
+        op: "_get",
+        path: pointer
+      };
+      applyOperation(document, getOriginalDestination);
+      return getOriginalDestination.value;
+    }
+    /**
+     * Apply a single JSON Patch Operation on a JSON document.
+     * Returns the {newDocument, result} of the operation.
+     * It modifies the `document` and `operation` objects - it gets the values by reference.
+     * If you would like to avoid touching your values, clone them:
+     * `jsonpatch.applyOperation(document, jsonpatch._deepClone(operation))`.
+     *
+     * @param document The document to patch
+     * @param operation The operation to apply
+     * @param validateOperation `false` is without validation, `true` to use default jsonpatch's validation, or you can pass a `validateOperation` callback to be used for validation.
+     * @param mutateDocument Whether to mutate the original document or clone it before applying
+     * @param banPrototypeModifications Whether to ban modifications to `__proto__`, defaults to `true`.
+     * @return `{newDocument, result}` after the operation
+     */
+
+    function applyOperation(document, operation, validateOperation, mutateDocument, banPrototypeModifications, index) {
+      if (validateOperation === void 0) {
+        validateOperation = false;
+      }
+
+      if (mutateDocument === void 0) {
+        mutateDocument = true;
+      }
+
+      if (banPrototypeModifications === void 0) {
+        banPrototypeModifications = true;
+      }
+
+      if (index === void 0) {
+        index = 0;
+      }
+
+      if (validateOperation) {
+        if (typeof validateOperation == 'function') {
+          validateOperation(operation, 0, document, operation.path);
+        } else {
+          validator(operation, 0);
+        }
+      }
+      /* ROOT OPERATIONS */
+
+
+      if (operation.path === "") {
+        var returnValue = {
+          newDocument: document
+        };
+
+        if (operation.op === 'add') {
+          returnValue.newDocument = operation.value;
+          return returnValue;
+        } else if (operation.op === 'replace') {
+          returnValue.newDocument = operation.value;
+          returnValue.removed = document; //document we removed
+
+          return returnValue;
+        } else if (operation.op === 'move' || operation.op === 'copy') {
+          // it's a move or copy to root
+          returnValue.newDocument = getValueByPointer(document, operation.from); // get the value by json-pointer in `from` field
+
+          if (operation.op === 'move') {
+            // report removed item
+            returnValue.removed = document;
+          }
+
+          return returnValue;
+        } else if (operation.op === 'test') {
+          returnValue.test = _areEquals(document, operation.value);
+
+          if (returnValue.test === false) {
+            throw new JsonPatchError("Test operation failed", 'TEST_OPERATION_FAILED', index, operation, document);
+          }
+
+          returnValue.newDocument = document;
+          return returnValue;
+        } else if (operation.op === 'remove') {
+          // a remove on root
+          returnValue.removed = document;
+          returnValue.newDocument = null;
+          return returnValue;
+        } else if (operation.op === '_get') {
+          operation.value = document;
+          return returnValue;
+        } else {
+          /* bad operation */
+          if (validateOperation) {
+            throw new JsonPatchError('Operation `op` property is not one of operations defined in RFC-6902', 'OPERATION_OP_INVALID', index, operation, document);
+          } else {
+            return returnValue;
+          }
+        }
+      }
+      /* END ROOT OPERATIONS */
+      else {
+        if (!mutateDocument) {
+          document = _deepClone(document);
+        }
+
+        var path = operation.path || "";
+        var keys = path.split('/');
+        var obj = document;
+        var t = 1; //skip empty element - http://jsperf.com/to-shift-or-not-to-shift
+
+        var len = keys.length;
+        var existingPathFragment = undefined;
+        var key = void 0;
+        var validateFunction = void 0;
+
+        if (typeof validateOperation == 'function') {
+          validateFunction = validateOperation;
+        } else {
+          validateFunction = validator;
+        }
+
+        while (true) {
+          key = keys[t];
+
+          if (key && key.indexOf('~') != -1) {
+            key = unescapePathComponent(key);
+          }
+
+          if (banPrototypeModifications && key == '__proto__') {
+            throw new TypeError('JSON-Patch: modifying `__proto__` prop is banned for security reasons, if this was on purpose, please set `banPrototypeModifications` flag false and pass it to this function. More info in fast-json-patch README');
+          }
+
+          if (validateOperation) {
+            if (existingPathFragment === undefined) {
+              if (obj[key] === undefined) {
+                existingPathFragment = keys.slice(0, t).join('/');
+              } else if (t == len - 1) {
+                existingPathFragment = operation.path;
+              }
+
+              if (existingPathFragment !== undefined) {
+                validateFunction(operation, 0, document, existingPathFragment);
+              }
+            }
+          }
+
+          t++;
+
+          if (Array.isArray(obj)) {
+            if (key === '-') {
+              key = obj.length;
+            } else {
+              if (validateOperation && !isInteger(key)) {
+                throw new JsonPatchError("Expected an unsigned base-10 integer value, making the new referenced value the array element with the zero-based index", "OPERATION_PATH_ILLEGAL_ARRAY_INDEX", index, operation, document);
+              } // only parse key when it's an integer for `arr.prop` to work
+              else if (isInteger(key)) {
+                key = ~~key;
+              }
+            }
+
+            if (t >= len) {
+              if (validateOperation && operation.op === "add" && key > obj.length) {
+                throw new JsonPatchError("The specified index MUST NOT be greater than the number of elements in the array", "OPERATION_VALUE_OUT_OF_BOUNDS", index, operation, document);
+              }
+
+              var returnValue = arrOps[operation.op].call(operation, obj, key, document); // Apply patch
+
+              if (returnValue.test === false) {
+                throw new JsonPatchError("Test operation failed", 'TEST_OPERATION_FAILED', index, operation, document);
+              }
+
+              return returnValue;
+            }
+          } else {
+            if (t >= len) {
+              var returnValue = objOps[operation.op].call(operation, obj, key, document); // Apply patch
+
+              if (returnValue.test === false) {
+                throw new JsonPatchError("Test operation failed", 'TEST_OPERATION_FAILED', index, operation, document);
+              }
+
+              return returnValue;
+            }
+          }
+
+          obj = obj[key]; // If we have more keys in the path, but the next value isn't a non-null object,
+          // throw an OPERATION_PATH_UNRESOLVABLE error instead of iterating again.
+
+          if (validateOperation && t < len && (!obj || typeof obj !== "object")) {
+            throw new JsonPatchError('Cannot perform operation at the desired path', 'OPERATION_PATH_UNRESOLVABLE', index, operation, document);
+          }
+        }
+      }
+    }
+    /**
+     * Apply a full JSON Patch array on a JSON document.
+     * Returns the {newDocument, result} of the patch.
+     * It modifies the `document` object and `patch` - it gets the values by reference.
+     * If you would like to avoid touching your values, clone them:
+     * `jsonpatch.applyPatch(document, jsonpatch._deepClone(patch))`.
+     *
+     * @param document The document to patch
+     * @param patch The patch to apply
+     * @param validateOperation `false` is without validation, `true` to use default jsonpatch's validation, or you can pass a `validateOperation` callback to be used for validation.
+     * @param mutateDocument Whether to mutate the original document or clone it before applying
+     * @param banPrototypeModifications Whether to ban modifications to `__proto__`, defaults to `true`.
+     * @return An array of `{newDocument, result}` after the patch
+     */
+
+    function applyPatch(document, patch, validateOperation, mutateDocument, banPrototypeModifications) {
+      if (mutateDocument === void 0) {
+        mutateDocument = true;
+      }
+
+      if (banPrototypeModifications === void 0) {
+        banPrototypeModifications = true;
+      }
+
+      if (validateOperation) {
+        if (!Array.isArray(patch)) {
+          throw new JsonPatchError('Patch sequence must be an array', 'SEQUENCE_NOT_AN_ARRAY');
+        }
+      }
+
+      if (!mutateDocument) {
+        document = _deepClone(document);
+      }
+
+      var results = new Array(patch.length);
+
+      for (var i = 0, length_1 = patch.length; i < length_1; i++) {
+        // we don't need to pass mutateDocument argument because if it was true, we already deep cloned the object, we'll just pass `true`
+        results[i] = applyOperation(document, patch[i], validateOperation, true, banPrototypeModifications, i);
+        document = results[i].newDocument; // in case root was replaced
+      }
+
+      results.newDocument = document;
+      return results;
+    }
+    /**
+     * Apply a single JSON Patch Operation on a JSON document.
+     * Returns the updated document.
+     * Suitable as a reducer.
+     *
+     * @param document The document to patch
+     * @param operation The operation to apply
+     * @return The updated document
+     */
+
+    function applyReducer(document, operation, index) {
+      var operationResult = applyOperation(document, operation);
+
+      if (operationResult.test === false) {
+        // failed test
+        throw new JsonPatchError("Test operation failed", 'TEST_OPERATION_FAILED', index, operation, document);
+      }
+
+      return operationResult.newDocument;
+    }
+    /**
+     * Validates a single operation. Called from `jsonpatch.validate`. Throws `JsonPatchError` in case of an error.
+     * @param {object} operation - operation object (patch)
+     * @param {number} index - index of operation in the sequence
+     * @param {object} [document] - object where the operation is supposed to be applied
+     * @param {string} [existingPathFragment] - comes along with `document`
+     */
+
+    function validator(operation, index, document, existingPathFragment) {
+      if (typeof operation !== 'object' || operation === null || Array.isArray(operation)) {
+        throw new JsonPatchError('Operation is not an object', 'OPERATION_NOT_AN_OBJECT', index, operation, document);
+      } else if (!objOps[operation.op]) {
+        throw new JsonPatchError('Operation `op` property is not one of operations defined in RFC-6902', 'OPERATION_OP_INVALID', index, operation, document);
+      } else if (typeof operation.path !== 'string') {
+        throw new JsonPatchError('Operation `path` property is not a string', 'OPERATION_PATH_INVALID', index, operation, document);
+      } else if (operation.path.indexOf('/') !== 0 && operation.path.length > 0) {
+        // paths that aren't empty string should start with "/"
+        throw new JsonPatchError('Operation `path` property must start with "/"', 'OPERATION_PATH_INVALID', index, operation, document);
+      } else if ((operation.op === 'move' || operation.op === 'copy') && typeof operation.from !== 'string') {
+        throw new JsonPatchError('Operation `from` property is not present (applicable in `move` and `copy` operations)', 'OPERATION_FROM_REQUIRED', index, operation, document);
+      } else if ((operation.op === 'add' || operation.op === 'replace' || operation.op === 'test') && operation.value === undefined) {
+        throw new JsonPatchError('Operation `value` property is not present (applicable in `add`, `replace` and `test` operations)', 'OPERATION_VALUE_REQUIRED', index, operation, document);
+      } else if ((operation.op === 'add' || operation.op === 'replace' || operation.op === 'test') && hasUndefined(operation.value)) {
+        throw new JsonPatchError('Operation `value` property is not present (applicable in `add`, `replace` and `test` operations)', 'OPERATION_VALUE_CANNOT_CONTAIN_UNDEFINED', index, operation, document);
+      } else if (document) {
+        if (operation.op == "add") {
+          var pathLen = operation.path.split("/").length;
+          var existingPathLen = existingPathFragment.split("/").length;
+
+          if (pathLen !== existingPathLen + 1 && pathLen !== existingPathLen) {
+            throw new JsonPatchError('Cannot perform an `add` operation at the desired path', 'OPERATION_PATH_CANNOT_ADD', index, operation, document);
+          }
+        } else if (operation.op === 'replace' || operation.op === 'remove' || operation.op === '_get') {
+          if (operation.path !== existingPathFragment) {
+            throw new JsonPatchError('Cannot perform the operation at a path that does not exist', 'OPERATION_PATH_UNRESOLVABLE', index, operation, document);
+          }
+        } else if (operation.op === 'move' || operation.op === 'copy') {
+          var existingValue = {
+            op: "_get",
+            path: operation.from,
+            value: undefined
+          };
+          var error = validate([existingValue], document);
+
+          if (error && error.name === 'OPERATION_PATH_UNRESOLVABLE') {
+            throw new JsonPatchError('Cannot perform the operation from a path that does not exist', 'OPERATION_FROM_UNRESOLVABLE', index, operation, document);
+          }
+        }
+      }
+    }
+    /**
+     * Validates a sequence of operations. If `document` parameter is provided, the sequence is additionally validated against the object document.
+     * If error is encountered, returns a JsonPatchError object
+     * @param sequence
+     * @param document
+     * @returns {JsonPatchError|undefined}
+     */
+
+    function validate(sequence, document, externalValidator) {
+      try {
+        if (!Array.isArray(sequence)) {
+          throw new JsonPatchError('Patch sequence must be an array', 'SEQUENCE_NOT_AN_ARRAY');
+        }
+
+        if (document) {
+          //clone document and sequence so that we can safely try applying operations
+          applyPatch(_deepClone(document), _deepClone(sequence), externalValidator || true);
+        } else {
+          externalValidator = externalValidator || validator;
+
+          for (var i = 0; i < sequence.length; i++) {
+            externalValidator(sequence[i], i, document, undefined);
+          }
+        }
+      } catch (e) {
+        if (e instanceof JsonPatchError) {
+          return e;
+        } else {
+          throw e;
+        }
+      }
+    } // based on https://github.com/epoberezkin/fast-deep-equal
+    // MIT License
+    // Copyright (c) 2017 Evgeny Poberezkin
+    // Permission is hereby granted, free of charge, to any person obtaining a copy
+    // of this software and associated documentation files (the "Software"), to deal
+    // in the Software without restriction, including without limitation the rights
+    // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    // copies of the Software, and to permit persons to whom the Software is
+    // furnished to do so, subject to the following conditions:
+    // The above copyright notice and this permission notice shall be included in all
+    // copies or substantial portions of the Software.
+    // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    // SOFTWARE.
+
+    function _areEquals(a, b) {
+      if (a === b) return true;
+
+      if (a && b && typeof a == 'object' && typeof b == 'object') {
+        var arrA = Array.isArray(a),
+            arrB = Array.isArray(b),
+            i,
+            length,
+            key;
+
+        if (arrA && arrB) {
+          length = a.length;
+          if (length != b.length) return false;
+
+          for (i = length; i-- !== 0;) if (!_areEquals(a[i], b[i])) return false;
+
+          return true;
+        }
+
+        if (arrA != arrB) return false;
+        var keys = Object.keys(a);
+        length = keys.length;
+        if (length !== Object.keys(b).length) return false;
+
+        for (i = length; i-- !== 0;) if (!b.hasOwnProperty(keys[i])) return false;
+
+        for (i = length; i-- !== 0;) {
+          key = keys[i];
+          if (!_areEquals(a[key], b[key])) return false;
+        }
+
+        return true;
+      }
+
+      return a !== a && b !== b;
+    }
+
+    var core = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        JsonPatchError: JsonPatchError,
+        deepClone: deepClone,
+        getValueByPointer: getValueByPointer,
+        applyOperation: applyOperation,
+        applyPatch: applyPatch,
+        applyReducer: applyReducer,
+        validator: validator,
+        validate: validate,
+        _areEquals: _areEquals
+    });
+
+    /*!
+     * https://github.com/Starcounter-Jack/JSON-Patch
+     * (c) 2017 Joachim Wester
+     * MIT license
+     */
+    var beforeDict = new WeakMap();
+
+    var Mirror =
+    /** @class */
+    function () {
+      function Mirror(obj) {
+        this.observers = new Map();
+        this.obj = obj;
+      }
+
+      return Mirror;
+    }();
+
+    var ObserverInfo =
+    /** @class */
+    function () {
+      function ObserverInfo(callback, observer) {
+        this.callback = callback;
+        this.observer = observer;
+      }
+
+      return ObserverInfo;
+    }();
+
+    function getMirror(obj) {
+      return beforeDict.get(obj);
+    }
+
+    function getObserverFromMirror(mirror, callback) {
+      return mirror.observers.get(callback);
+    }
+
+    function removeObserverFromMirror(mirror, observer) {
+      mirror.observers.delete(observer.callback);
+    }
+    /**
+     * Detach an observer from an object
+     */
+
+
+    function unobserve(root, observer) {
+      observer.unobserve();
+    }
+    /**
+     * Observes changes made to an object, which can then be retrieved using generate
+     */
+
+    function observe(obj, callback) {
+      var patches = [];
+      var observer;
+      var mirror = getMirror(obj);
+
+      if (!mirror) {
+        mirror = new Mirror(obj);
+        beforeDict.set(obj, mirror);
+      } else {
+        var observerInfo = getObserverFromMirror(mirror, callback);
+        observer = observerInfo && observerInfo.observer;
+      }
+
+      if (observer) {
+        return observer;
+      }
+
+      observer = {};
+      mirror.value = _deepClone(obj);
+
+      if (callback) {
+        observer.callback = callback;
+        observer.next = null;
+
+        var dirtyCheck = function () {
+          generate(observer);
+        };
+
+        var fastCheck = function () {
+          clearTimeout(observer.next);
+          observer.next = setTimeout(dirtyCheck);
+        };
+
+        if (typeof window !== 'undefined') {
+          //not Node
+          window.addEventListener('mouseup', fastCheck);
+          window.addEventListener('keyup', fastCheck);
+          window.addEventListener('mousedown', fastCheck);
+          window.addEventListener('keydown', fastCheck);
+          window.addEventListener('change', fastCheck);
+        }
+      }
+
+      observer.patches = patches;
+      observer.object = obj;
+
+      observer.unobserve = function () {
+        generate(observer);
+        clearTimeout(observer.next);
+        removeObserverFromMirror(mirror, observer);
+
+        if (typeof window !== 'undefined') {
+          window.removeEventListener('mouseup', fastCheck);
+          window.removeEventListener('keyup', fastCheck);
+          window.removeEventListener('mousedown', fastCheck);
+          window.removeEventListener('keydown', fastCheck);
+          window.removeEventListener('change', fastCheck);
+        }
+      };
+
+      mirror.observers.set(callback, new ObserverInfo(callback, observer));
+      return observer;
+    }
+    /**
+     * Generate an array of patches from an observer
+     */
+
+    function generate(observer, invertible) {
+      if (invertible === void 0) {
+        invertible = false;
+      }
+
+      var mirror = beforeDict.get(observer.object);
+
+      _generate(mirror.value, observer.object, observer.patches, "", invertible);
+
+      if (observer.patches.length) {
+        applyPatch(mirror.value, observer.patches);
+      }
+
+      var temp = observer.patches;
+
+      if (temp.length > 0) {
+        observer.patches = [];
+
+        if (observer.callback) {
+          observer.callback(temp);
+        }
+      }
+
+      return temp;
+    } // Dirty check if obj is different from mirror, generate patches and update mirror
+
+    function _generate(mirror, obj, patches, path, invertible) {
+      if (obj === mirror) {
+        return;
+      }
+
+      if (typeof obj.toJSON === "function") {
+        obj = obj.toJSON();
+      }
+
+      var newKeys = _objectKeys(obj);
+
+      var oldKeys = _objectKeys(mirror);
+      var deleted = false; //if ever "move" operation is implemented here, make sure this test runs OK: "should not generate the same patch twice (move)"
+
+      for (var t = oldKeys.length - 1; t >= 0; t--) {
+        var key = oldKeys[t];
+        var oldVal = mirror[key];
+
+        if (hasOwnProperty(obj, key) && !(obj[key] === undefined && oldVal !== undefined && Array.isArray(obj) === false)) {
+          var newVal = obj[key];
+
+          if (typeof oldVal == "object" && oldVal != null && typeof newVal == "object" && newVal != null && Array.isArray(oldVal) === Array.isArray(newVal)) {
+            _generate(oldVal, newVal, patches, path + "/" + escapePathComponent(key), invertible);
+          } else {
+            if (oldVal !== newVal) {
+
+              if (invertible) {
+                patches.push({
+                  op: "test",
+                  path: path + "/" + escapePathComponent(key),
+                  value: _deepClone(oldVal)
+                });
+              }
+
+              patches.push({
+                op: "replace",
+                path: path + "/" + escapePathComponent(key),
+                value: _deepClone(newVal)
+              });
+            }
+          }
+        } else if (Array.isArray(mirror) === Array.isArray(obj)) {
+          if (invertible) {
+            patches.push({
+              op: "test",
+              path: path + "/" + escapePathComponent(key),
+              value: _deepClone(oldVal)
+            });
+          }
+
+          patches.push({
+            op: "remove",
+            path: path + "/" + escapePathComponent(key)
+          });
+          deleted = true; // property has been deleted
+        } else {
+          if (invertible) {
+            patches.push({
+              op: "test",
+              path: path,
+              value: mirror
+            });
+          }
+
+          patches.push({
+            op: "replace",
+            path: path,
+            value: obj
+          });
+        }
+      }
+
+      if (!deleted && newKeys.length == oldKeys.length) {
+        return;
+      }
+
+      for (var t = 0; t < newKeys.length; t++) {
+        var key = newKeys[t];
+
+        if (!hasOwnProperty(mirror, key) && obj[key] !== undefined) {
+          patches.push({
+            op: "add",
+            path: path + "/" + escapePathComponent(key),
+            value: _deepClone(obj[key])
+          });
+        }
+      }
+    }
+    /**
+     * Create an array of patches from the differences in two objects
+     */
+
+
+    function compare$7(tree1, tree2, invertible) {
+      if (invertible === void 0) {
+        invertible = false;
+      }
+
+      var patches = [];
+
+      _generate(tree1, tree2, patches, '', invertible);
+
+      return patches;
+    }
+
+    var duplex = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        unobserve: unobserve,
+        observe: observe,
+        generate: generate,
+        compare: compare$7
+    });
+
+    Object.assign({}, core, duplex, {
+      JsonPatchError: PatchError,
+      deepClone: _deepClone,
+      escapePathComponent,
+      unescapePathComponent
+    });
+
+    // working on the output of `JSON.stringify` we know that only valid strings
+    // are present (unless the user supplied a weird `options.indent` but in
+    // that case we don’t care since the output would be invalid anyway).
+
+
+    var stringOrChar = /("(?:[^\\"]|\\.)*")|[:,]/g;
+
+    var jsonStringifyPrettyCompact = function stringify(passedObj, options) {
+      var indent, maxLength, replacer;
+      options = options || {};
+      indent = JSON.stringify([1], undefined, options.indent === undefined ? 2 : options.indent).slice(2, -3);
+      maxLength = indent === "" ? Infinity : options.maxLength === undefined ? 80 : options.maxLength;
+      replacer = options.replacer;
+      return function _stringify(obj, currentIndent, reserved) {
+        // prettier-ignore
+        var end, index, items, key, keyPart, keys, length, nextIndent, prettified, start, string, value;
+
+        if (obj && typeof obj.toJSON === "function") {
+          obj = obj.toJSON();
+        }
+
+        string = JSON.stringify(obj, replacer);
+
+        if (string === undefined) {
+          return string;
+        }
+
+        length = maxLength - currentIndent.length - reserved;
+
+        if (string.length <= length) {
+          prettified = string.replace(stringOrChar, function (match, stringLiteral) {
+            return stringLiteral || match + " ";
+          });
+
+          if (prettified.length <= length) {
+            return prettified;
+          }
+        }
+
+        if (replacer != null) {
+          obj = JSON.parse(string);
+          replacer = undefined;
+        }
+
+        if (typeof obj === "object" && obj !== null) {
+          nextIndent = currentIndent + indent;
+          items = [];
+          index = 0;
+
+          if (Array.isArray(obj)) {
+            start = "[";
+            end = "]";
+            length = obj.length;
+
+            for (; index < length; index++) {
+              items.push(_stringify(obj[index], nextIndent, index === length - 1 ? 0 : 1) || "null");
+            }
+          } else {
+            start = "{";
+            end = "}";
+            keys = Object.keys(obj);
+            length = keys.length;
+
+            for (; index < length; index++) {
+              key = keys[index];
+              keyPart = JSON.stringify(key) + ": ";
+              value = _stringify(obj[key], nextIndent, keyPart.length + (index === length - 1 ? 0 : 1));
+
+              if (value !== undefined) {
+                items.push(keyPart + value);
+              }
+            }
+          }
+
+          if (items.length > 0) {
+            return [start, indent + items.join(",\n" + nextIndent), end].join("\n" + currentIndent);
+          }
+        }
+
+        return string;
+      }(passedObj, "", 0);
+    };
+
+    var yallist = Yallist$1;
+    Yallist$1.Node = Node;
+    Yallist$1.create = Yallist$1;
+
+    function Yallist$1(list) {
+      var self = this;
+
+      if (!(self instanceof Yallist$1)) {
+        self = new Yallist$1();
+      }
+
+      self.tail = null;
+      self.head = null;
+      self.length = 0;
+
+      if (list && typeof list.forEach === 'function') {
+        list.forEach(function (item) {
+          self.push(item);
+        });
+      } else if (arguments.length > 0) {
+        for (var i = 0, l = arguments.length; i < l; i++) {
+          self.push(arguments[i]);
+        }
+      }
+
+      return self;
+    }
+
+    Yallist$1.prototype.removeNode = function (node) {
+      if (node.list !== this) {
+        throw new Error('removing node which does not belong to this list');
+      }
+
+      var next = node.next;
+      var prev = node.prev;
+
+      if (next) {
+        next.prev = prev;
+      }
+
+      if (prev) {
+        prev.next = next;
+      }
+
+      if (node === this.head) {
+        this.head = next;
+      }
+
+      if (node === this.tail) {
+        this.tail = prev;
+      }
+
+      node.list.length--;
+      node.next = null;
+      node.prev = null;
+      node.list = null;
+      return next;
+    };
+
+    Yallist$1.prototype.unshiftNode = function (node) {
+      if (node === this.head) {
+        return;
+      }
+
+      if (node.list) {
+        node.list.removeNode(node);
+      }
+
+      var head = this.head;
+      node.list = this;
+      node.next = head;
+
+      if (head) {
+        head.prev = node;
+      }
+
+      this.head = node;
+
+      if (!this.tail) {
+        this.tail = node;
+      }
+
+      this.length++;
+    };
+
+    Yallist$1.prototype.pushNode = function (node) {
+      if (node === this.tail) {
+        return;
+      }
+
+      if (node.list) {
+        node.list.removeNode(node);
+      }
+
+      var tail = this.tail;
+      node.list = this;
+      node.prev = tail;
+
+      if (tail) {
+        tail.next = node;
+      }
+
+      this.tail = node;
+
+      if (!this.head) {
+        this.head = node;
+      }
+
+      this.length++;
+    };
+
+    Yallist$1.prototype.push = function () {
+      for (var i = 0, l = arguments.length; i < l; i++) {
+        push(this, arguments[i]);
+      }
+
+      return this.length;
+    };
+
+    Yallist$1.prototype.unshift = function () {
+      for (var i = 0, l = arguments.length; i < l; i++) {
+        unshift(this, arguments[i]);
+      }
+
+      return this.length;
+    };
+
+    Yallist$1.prototype.pop = function () {
+      if (!this.tail) {
+        return undefined;
+      }
+
+      var res = this.tail.value;
+      this.tail = this.tail.prev;
+
+      if (this.tail) {
+        this.tail.next = null;
+      } else {
+        this.head = null;
+      }
+
+      this.length--;
+      return res;
+    };
+
+    Yallist$1.prototype.shift = function () {
+      if (!this.head) {
+        return undefined;
+      }
+
+      var res = this.head.value;
+      this.head = this.head.next;
+
+      if (this.head) {
+        this.head.prev = null;
+      } else {
+        this.tail = null;
+      }
+
+      this.length--;
+      return res;
+    };
+
+    Yallist$1.prototype.forEach = function (fn, thisp) {
+      thisp = thisp || this;
+
+      for (var walker = this.head, i = 0; walker !== null; i++) {
+        fn.call(thisp, walker.value, i, this);
+        walker = walker.next;
+      }
+    };
+
+    Yallist$1.prototype.forEachReverse = function (fn, thisp) {
+      thisp = thisp || this;
+
+      for (var walker = this.tail, i = this.length - 1; walker !== null; i--) {
+        fn.call(thisp, walker.value, i, this);
+        walker = walker.prev;
+      }
+    };
+
+    Yallist$1.prototype.get = function (n) {
+      for (var i = 0, walker = this.head; walker !== null && i < n; i++) {
+        // abort out of the list early if we hit a cycle
+        walker = walker.next;
+      }
+
+      if (i === n && walker !== null) {
+        return walker.value;
+      }
+    };
+
+    Yallist$1.prototype.getReverse = function (n) {
+      for (var i = 0, walker = this.tail; walker !== null && i < n; i++) {
+        // abort out of the list early if we hit a cycle
+        walker = walker.prev;
+      }
+
+      if (i === n && walker !== null) {
+        return walker.value;
+      }
+    };
+
+    Yallist$1.prototype.map = function (fn, thisp) {
+      thisp = thisp || this;
+      var res = new Yallist$1();
+
+      for (var walker = this.head; walker !== null;) {
+        res.push(fn.call(thisp, walker.value, this));
+        walker = walker.next;
+      }
+
+      return res;
+    };
+
+    Yallist$1.prototype.mapReverse = function (fn, thisp) {
+      thisp = thisp || this;
+      var res = new Yallist$1();
+
+      for (var walker = this.tail; walker !== null;) {
+        res.push(fn.call(thisp, walker.value, this));
+        walker = walker.prev;
+      }
+
+      return res;
+    };
+
+    Yallist$1.prototype.reduce = function (fn, initial) {
+      var acc;
+      var walker = this.head;
+
+      if (arguments.length > 1) {
+        acc = initial;
+      } else if (this.head) {
+        walker = this.head.next;
+        acc = this.head.value;
+      } else {
+        throw new TypeError('Reduce of empty list with no initial value');
+      }
+
+      for (var i = 0; walker !== null; i++) {
+        acc = fn(acc, walker.value, i);
+        walker = walker.next;
+      }
+
+      return acc;
+    };
+
+    Yallist$1.prototype.reduceReverse = function (fn, initial) {
+      var acc;
+      var walker = this.tail;
+
+      if (arguments.length > 1) {
+        acc = initial;
+      } else if (this.tail) {
+        walker = this.tail.prev;
+        acc = this.tail.value;
+      } else {
+        throw new TypeError('Reduce of empty list with no initial value');
+      }
+
+      for (var i = this.length - 1; walker !== null; i--) {
+        acc = fn(acc, walker.value, i);
+        walker = walker.prev;
+      }
+
+      return acc;
+    };
+
+    Yallist$1.prototype.toArray = function () {
+      var arr = new Array(this.length);
+
+      for (var i = 0, walker = this.head; walker !== null; i++) {
+        arr[i] = walker.value;
+        walker = walker.next;
+      }
+
+      return arr;
+    };
+
+    Yallist$1.prototype.toArrayReverse = function () {
+      var arr = new Array(this.length);
+
+      for (var i = 0, walker = this.tail; walker !== null; i++) {
+        arr[i] = walker.value;
+        walker = walker.prev;
+      }
+
+      return arr;
+    };
+
+    Yallist$1.prototype.slice = function (from, to) {
+      to = to || this.length;
+
+      if (to < 0) {
+        to += this.length;
+      }
+
+      from = from || 0;
+
+      if (from < 0) {
+        from += this.length;
+      }
+
+      var ret = new Yallist$1();
+
+      if (to < from || to < 0) {
+        return ret;
+      }
+
+      if (from < 0) {
+        from = 0;
+      }
+
+      if (to > this.length) {
+        to = this.length;
+      }
+
+      for (var i = 0, walker = this.head; walker !== null && i < from; i++) {
+        walker = walker.next;
+      }
+
+      for (; walker !== null && i < to; i++, walker = walker.next) {
+        ret.push(walker.value);
+      }
+
+      return ret;
+    };
+
+    Yallist$1.prototype.sliceReverse = function (from, to) {
+      to = to || this.length;
+
+      if (to < 0) {
+        to += this.length;
+      }
+
+      from = from || 0;
+
+      if (from < 0) {
+        from += this.length;
+      }
+
+      var ret = new Yallist$1();
+
+      if (to < from || to < 0) {
+        return ret;
+      }
+
+      if (from < 0) {
+        from = 0;
+      }
+
+      if (to > this.length) {
+        to = this.length;
+      }
+
+      for (var i = this.length, walker = this.tail; walker !== null && i > to; i--) {
+        walker = walker.prev;
+      }
+
+      for (; walker !== null && i > from; i--, walker = walker.prev) {
+        ret.push(walker.value);
+      }
+
+      return ret;
+    };
+
+    Yallist$1.prototype.splice = function (start, deleteCount) {
+      if (start > this.length) {
+        start = this.length - 1;
+      }
+
+      if (start < 0) {
+        start = this.length + start;
+      }
+
+      for (var i = 0, walker = this.head; walker !== null && i < start; i++) {
+        walker = walker.next;
+      }
+
+      var ret = [];
+
+      for (var i = 0; walker && i < deleteCount; i++) {
+        ret.push(walker.value);
+        walker = this.removeNode(walker);
+      }
+
+      if (walker === null) {
+        walker = this.tail;
+      }
+
+      if (walker !== this.head && walker !== this.tail) {
+        walker = walker.prev;
+      }
+
+      for (var i = 0; i < (arguments.length <= 2 ? 0 : arguments.length - 2); i++) {
+        walker = insert(this, walker, i + 2 < 2 || arguments.length <= i + 2 ? undefined : arguments[i + 2]);
+      }
+
+      return ret;
+    };
+
+    Yallist$1.prototype.reverse = function () {
+      var head = this.head;
+      var tail = this.tail;
+
+      for (var walker = head; walker !== null; walker = walker.prev) {
+        var p = walker.prev;
+        walker.prev = walker.next;
+        walker.next = p;
+      }
+
+      this.head = tail;
+      this.tail = head;
+      return this;
+    };
+
+    function insert(self, node, value) {
+      var inserted = node === self.head ? new Node(value, null, node, self) : new Node(value, node, node.next, self);
+
+      if (inserted.next === null) {
+        self.tail = inserted;
+      }
+
+      if (inserted.prev === null) {
+        self.head = inserted;
+      }
+
+      self.length++;
+      return inserted;
+    }
+
+    function push(self, item) {
+      self.tail = new Node(item, self.tail, null, self);
+
+      if (!self.head) {
+        self.head = self.tail;
+      }
+
+      self.length++;
+    }
+
+    function unshift(self, item) {
+      self.head = new Node(item, null, self.head, self);
+
+      if (!self.tail) {
+        self.tail = self.head;
+      }
+
+      self.length++;
+    }
+
+    function Node(value, prev, next, list) {
+      if (!(this instanceof Node)) {
+        return new Node(value, prev, next, list);
+      }
+
+      this.list = list;
+      this.value = value;
+
+      if (prev) {
+        prev.next = this;
+        this.prev = prev;
+      } else {
+        this.prev = null;
+      }
+
+      if (next) {
+        next.prev = this;
+        this.next = next;
+      } else {
+        this.next = null;
+      }
+    }
+
+    try {
+      // add if support for Symbol.iterator is present
+      Yallist$1.prototype[Symbol.iterator] = function* () {
+        for (let walker = this.head; walker; walker = walker.next) {
+          yield walker.value;
+        }
+      };
+    } catch (er) {}
+
+    const Yallist = yallist;
+    const MAX = Symbol('max');
+    const LENGTH = Symbol('length');
+    const LENGTH_CALCULATOR = Symbol('lengthCalculator');
+    const ALLOW_STALE = Symbol('allowStale');
+    const MAX_AGE = Symbol('maxAge');
+    const DISPOSE = Symbol('dispose');
+    const NO_DISPOSE_ON_SET = Symbol('noDisposeOnSet');
+    const LRU_LIST = Symbol('lruList');
+    const CACHE = Symbol('cache');
+    const UPDATE_AGE_ON_GET = Symbol('updateAgeOnGet');
+
+    const naiveLength = () => 1; // lruList is a yallist where the head is the youngest
+    // item, and the tail is the oldest.  the list contains the Hit
+    // objects as the entries.
+    // Each Hit object has a reference to its Yallist.Node.  This
+    // never changes.
+    //
+    // cache is a Map (or PseudoMap) that matches the keys to
+    // the Yallist.Node object.
+
+
+    class LRUCache {
+      constructor(options) {
+        if (typeof options === 'number') options = {
+          max: options
+        };
+        if (!options) options = {};
+        if (options.max && (typeof options.max !== 'number' || options.max < 0)) throw new TypeError('max must be a non-negative number'); // Kind of weird to have a default max of Infinity, but oh well.
+
+        this[MAX] = options.max || Infinity;
+        const lc = options.length || naiveLength;
+        this[LENGTH_CALCULATOR] = typeof lc !== 'function' ? naiveLength : lc;
+        this[ALLOW_STALE] = options.stale || false;
+        if (options.maxAge && typeof options.maxAge !== 'number') throw new TypeError('maxAge must be a number');
+        this[MAX_AGE] = options.maxAge || 0;
+        this[DISPOSE] = options.dispose;
+        this[NO_DISPOSE_ON_SET] = options.noDisposeOnSet || false;
+        this[UPDATE_AGE_ON_GET] = options.updateAgeOnGet || false;
+        this.reset();
+      } // resize the cache when the max changes.
+
+
+      set max(mL) {
+        if (typeof mL !== 'number' || mL < 0) throw new TypeError('max must be a non-negative number');
+        this[MAX] = mL || Infinity;
+        trim(this);
+      }
+
+      get max() {
+        return this[MAX];
+      }
+
+      set allowStale(allowStale) {
+        this[ALLOW_STALE] = !!allowStale;
+      }
+
+      get allowStale() {
+        return this[ALLOW_STALE];
+      }
+
+      set maxAge(mA) {
+        if (typeof mA !== 'number') throw new TypeError('maxAge must be a non-negative number');
+        this[MAX_AGE] = mA;
+        trim(this);
+      }
+
+      get maxAge() {
+        return this[MAX_AGE];
+      } // resize the cache when the lengthCalculator changes.
+
+
+      set lengthCalculator(lC) {
+        if (typeof lC !== 'function') lC = naiveLength;
+
+        if (lC !== this[LENGTH_CALCULATOR]) {
+          this[LENGTH_CALCULATOR] = lC;
+          this[LENGTH] = 0;
+          this[LRU_LIST].forEach(hit => {
+            hit.length = this[LENGTH_CALCULATOR](hit.value, hit.key);
+            this[LENGTH] += hit.length;
+          });
+        }
+
+        trim(this);
+      }
+
+      get lengthCalculator() {
+        return this[LENGTH_CALCULATOR];
+      }
+
+      get length() {
+        return this[LENGTH];
+      }
+
+      get itemCount() {
+        return this[LRU_LIST].length;
+      }
+
+      rforEach(fn, thisp) {
+        thisp = thisp || this;
+
+        for (let walker = this[LRU_LIST].tail; walker !== null;) {
+          const prev = walker.prev;
+          forEachStep(this, fn, walker, thisp);
+          walker = prev;
+        }
+      }
+
+      forEach(fn, thisp) {
+        thisp = thisp || this;
+
+        for (let walker = this[LRU_LIST].head; walker !== null;) {
+          const next = walker.next;
+          forEachStep(this, fn, walker, thisp);
+          walker = next;
+        }
+      }
+
+      keys() {
+        return this[LRU_LIST].toArray().map(k => k.key);
+      }
+
+      values() {
+        return this[LRU_LIST].toArray().map(k => k.value);
+      }
+
+      reset() {
+        if (this[DISPOSE] && this[LRU_LIST] && this[LRU_LIST].length) {
+          this[LRU_LIST].forEach(hit => this[DISPOSE](hit.key, hit.value));
+        }
+
+        this[CACHE] = new Map(); // hash of items by key
+
+        this[LRU_LIST] = new Yallist(); // list of items in order of use recency
+
+        this[LENGTH] = 0; // length of items in the list
+      }
+
+      dump() {
+        return this[LRU_LIST].map(hit => isStale(this, hit) ? false : {
+          k: hit.key,
+          v: hit.value,
+          e: hit.now + (hit.maxAge || 0)
+        }).toArray().filter(h => h);
+      }
+
+      dumpLru() {
+        return this[LRU_LIST];
+      }
+
+      set(key, value, maxAge) {
+        maxAge = maxAge || this[MAX_AGE];
+        if (maxAge && typeof maxAge !== 'number') throw new TypeError('maxAge must be a number');
+        const now = maxAge ? Date.now() : 0;
+        const len = this[LENGTH_CALCULATOR](value, key);
+
+        if (this[CACHE].has(key)) {
+          if (len > this[MAX]) {
+            del(this, this[CACHE].get(key));
+            return false;
+          }
+
+          const node = this[CACHE].get(key);
+          const item = node.value; // dispose of the old one before overwriting
+          // split out into 2 ifs for better coverage tracking
+
+          if (this[DISPOSE]) {
+            if (!this[NO_DISPOSE_ON_SET]) this[DISPOSE](key, item.value);
+          }
+
+          item.now = now;
+          item.maxAge = maxAge;
+          item.value = value;
+          this[LENGTH] += len - item.length;
+          item.length = len;
+          this.get(key);
+          trim(this);
+          return true;
+        }
+
+        const hit = new Entry(key, value, len, now, maxAge); // oversized objects fall out of cache automatically.
+
+        if (hit.length > this[MAX]) {
+          if (this[DISPOSE]) this[DISPOSE](key, value);
+          return false;
+        }
+
+        this[LENGTH] += hit.length;
+        this[LRU_LIST].unshift(hit);
+        this[CACHE].set(key, this[LRU_LIST].head);
+        trim(this);
+        return true;
+      }
+
+      has(key) {
+        if (!this[CACHE].has(key)) return false;
+        const hit = this[CACHE].get(key).value;
+        return !isStale(this, hit);
+      }
+
+      get(key) {
+        return get(this, key, true);
+      }
+
+      peek(key) {
+        return get(this, key, false);
+      }
+
+      pop() {
+        const node = this[LRU_LIST].tail;
+        if (!node) return null;
+        del(this, node);
+        return node.value;
+      }
+
+      del(key) {
+        del(this, this[CACHE].get(key));
+      }
+
+      load(arr) {
+        // reset the cache
+        this.reset();
+        const now = Date.now(); // A previous serialized cache has the most recent items first
+
+        for (let l = arr.length - 1; l >= 0; l--) {
+          const hit = arr[l];
+          const expiresAt = hit.e || 0;
+          if (expiresAt === 0) // the item was created without expiration in a non aged cache
+            this.set(hit.k, hit.v);else {
+            const maxAge = expiresAt - now; // dont add already expired items
+
+            if (maxAge > 0) {
+              this.set(hit.k, hit.v, maxAge);
+            }
+          }
+        }
+      }
+
+      prune() {
+        this[CACHE].forEach((value, key) => get(this, key, false));
+      }
+
+    }
+
+    const get = (self, key, doUse) => {
+      const node = self[CACHE].get(key);
+
+      if (node) {
+        const hit = node.value;
+
+        if (isStale(self, hit)) {
+          del(self, node);
+          if (!self[ALLOW_STALE]) return undefined;
+        } else {
+          if (doUse) {
+            if (self[UPDATE_AGE_ON_GET]) node.value.now = Date.now();
+            self[LRU_LIST].unshiftNode(node);
+          }
+        }
+
+        return hit.value;
+      }
+    };
+
+    const isStale = (self, hit) => {
+      if (!hit || !hit.maxAge && !self[MAX_AGE]) return false;
+      const diff = Date.now() - hit.now;
+      return hit.maxAge ? diff > hit.maxAge : self[MAX_AGE] && diff > self[MAX_AGE];
+    };
+
+    const trim = self => {
+      if (self[LENGTH] > self[MAX]) {
+        for (let walker = self[LRU_LIST].tail; self[LENGTH] > self[MAX] && walker !== null;) {
+          // We know that we're about to delete this one, and also
+          // what the next least recently used key will be, so just
+          // go ahead and set it now.
+          const prev = walker.prev;
+          del(self, walker);
+          walker = prev;
+        }
+      }
+    };
+
+    const del = (self, node) => {
+      if (node) {
+        const hit = node.value;
+        if (self[DISPOSE]) self[DISPOSE](hit.key, hit.value);
+        self[LENGTH] -= hit.length;
+        self[CACHE].delete(hit.key);
+        self[LRU_LIST].removeNode(node);
+      }
+    };
+
+    class Entry {
+      constructor(key, value, length, now, maxAge) {
+        this.key = key;
+        this.value = value;
+        this.length = length;
+        this.now = now;
+        this.maxAge = maxAge || 0;
+      }
+
+    }
+
+    const forEachStep = (self, fn, node, thisp) => {
+      let hit = node.value;
+
+      if (isStale(self, hit)) {
+        del(self, node);
+        if (!self[ALLOW_STALE]) hit = undefined;
+      }
+
+      if (hit) fn.call(thisp, hit.value, hit.key, self);
+    };
+
+    var lruCache = LRUCache;
+
+    // obj with keys in a consistent order.
+
+    const opts = ['includePrerelease', 'loose', 'rtl'];
+
+    const parseOptions$3 = options => !options ? {} : typeof options !== 'object' ? {
+      loose: true
+    } : opts.filter(k => options[k]).reduce((options, k) => {
+      options[k] = true;
+      return options;
+    }, {});
+
+    var parseOptions_1 = parseOptions$3;
+
+    var re$3 = {exports: {}};
+
+    // Not necessarily the package version of this code.
+
+    const SEMVER_SPEC_VERSION = '2.0.0';
+    const MAX_LENGTH$1 = 256;
+    const MAX_SAFE_INTEGER$1 = Number.MAX_SAFE_INTEGER ||
+    /* istanbul ignore next */
+    9007199254740991; // Max safe segment length for coercion.
+
+    const MAX_SAFE_COMPONENT_LENGTH = 16;
+    var constants = {
+      SEMVER_SPEC_VERSION,
+      MAX_LENGTH: MAX_LENGTH$1,
+      MAX_SAFE_INTEGER: MAX_SAFE_INTEGER$1,
+      MAX_SAFE_COMPONENT_LENGTH
+    };
+
+    const debug$3 = typeof process === 'object' && process.env && process.env.NODE_DEBUG && /\bsemver\b/i.test(process.env.NODE_DEBUG) ? function () {
+      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+        args[_key] = arguments[_key];
+      }
+
+      return console.error('SEMVER', ...args);
+    } : () => {};
+    var debug_1 = debug$3;
+
+    (function (module, exports) {
+      const {
+        MAX_SAFE_COMPONENT_LENGTH
+      } = constants;
+      const debug = debug_1;
+      exports = module.exports = {}; // The actual regexps go on exports.re
+
+      const re = exports.re = [];
+      const src = exports.src = [];
+      const t = exports.t = {};
+      let R = 0;
+
+      const createToken = (name, value, isGlobal) => {
+        const index = R++;
+        debug(index, value);
+        t[name] = index;
+        src[index] = value;
+        re[index] = new RegExp(value, isGlobal ? 'g' : undefined);
+      }; // The following Regular Expressions can be used for tokenizing,
+      // validating, and parsing SemVer version strings.
+      // ## Numeric Identifier
+      // A single `0`, or a non-zero digit followed by zero or more digits.
+
+
+      createToken('NUMERICIDENTIFIER', '0|[1-9]\\d*');
+      createToken('NUMERICIDENTIFIERLOOSE', '[0-9]+'); // ## Non-numeric Identifier
+      // Zero or more digits, followed by a letter or hyphen, and then zero or
+      // more letters, digits, or hyphens.
+
+      createToken('NONNUMERICIDENTIFIER', '\\d*[a-zA-Z-][a-zA-Z0-9-]*'); // ## Main Version
+      // Three dot-separated numeric identifiers.
+
+      createToken('MAINVERSION', "(".concat(src[t.NUMERICIDENTIFIER], ")\\.") + "(".concat(src[t.NUMERICIDENTIFIER], ")\\.") + "(".concat(src[t.NUMERICIDENTIFIER], ")"));
+      createToken('MAINVERSIONLOOSE', "(".concat(src[t.NUMERICIDENTIFIERLOOSE], ")\\.") + "(".concat(src[t.NUMERICIDENTIFIERLOOSE], ")\\.") + "(".concat(src[t.NUMERICIDENTIFIERLOOSE], ")")); // ## Pre-release Version Identifier
+      // A numeric identifier, or a non-numeric identifier.
+
+      createToken('PRERELEASEIDENTIFIER', "(?:".concat(src[t.NUMERICIDENTIFIER], "|").concat(src[t.NONNUMERICIDENTIFIER], ")"));
+      createToken('PRERELEASEIDENTIFIERLOOSE', "(?:".concat(src[t.NUMERICIDENTIFIERLOOSE], "|").concat(src[t.NONNUMERICIDENTIFIER], ")")); // ## Pre-release Version
+      // Hyphen, followed by one or more dot-separated pre-release version
+      // identifiers.
+
+      createToken('PRERELEASE', "(?:-(".concat(src[t.PRERELEASEIDENTIFIER], "(?:\\.").concat(src[t.PRERELEASEIDENTIFIER], ")*))"));
+      createToken('PRERELEASELOOSE', "(?:-?(".concat(src[t.PRERELEASEIDENTIFIERLOOSE], "(?:\\.").concat(src[t.PRERELEASEIDENTIFIERLOOSE], ")*))")); // ## Build Metadata Identifier
+      // Any combination of digits, letters, or hyphens.
+
+      createToken('BUILDIDENTIFIER', '[0-9A-Za-z-]+'); // ## Build Metadata
+      // Plus sign, followed by one or more period-separated build metadata
+      // identifiers.
+
+      createToken('BUILD', "(?:\\+(".concat(src[t.BUILDIDENTIFIER], "(?:\\.").concat(src[t.BUILDIDENTIFIER], ")*))")); // ## Full Version String
+      // A main version, followed optionally by a pre-release version and
+      // build metadata.
+      // Note that the only major, minor, patch, and pre-release sections of
+      // the version string are capturing groups.  The build metadata is not a
+      // capturing group, because it should not ever be used in version
+      // comparison.
+
+      createToken('FULLPLAIN', "v?".concat(src[t.MAINVERSION]).concat(src[t.PRERELEASE], "?").concat(src[t.BUILD], "?"));
+      createToken('FULL', "^".concat(src[t.FULLPLAIN], "$")); // like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
+      // also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
+      // common in the npm registry.
+
+      createToken('LOOSEPLAIN', "[v=\\s]*".concat(src[t.MAINVERSIONLOOSE]).concat(src[t.PRERELEASELOOSE], "?").concat(src[t.BUILD], "?"));
+      createToken('LOOSE', "^".concat(src[t.LOOSEPLAIN], "$"));
+      createToken('GTLT', '((?:<|>)?=?)'); // Something like "2.*" or "1.2.x".
+      // Note that "x.x" is a valid xRange identifer, meaning "any version"
+      // Only the first item is strictly required.
+
+      createToken('XRANGEIDENTIFIERLOOSE', "".concat(src[t.NUMERICIDENTIFIERLOOSE], "|x|X|\\*"));
+      createToken('XRANGEIDENTIFIER', "".concat(src[t.NUMERICIDENTIFIER], "|x|X|\\*"));
+      createToken('XRANGEPLAIN', "[v=\\s]*(".concat(src[t.XRANGEIDENTIFIER], ")") + "(?:\\.(".concat(src[t.XRANGEIDENTIFIER], ")") + "(?:\\.(".concat(src[t.XRANGEIDENTIFIER], ")") + "(?:".concat(src[t.PRERELEASE], ")?").concat(src[t.BUILD], "?") + ")?)?");
+      createToken('XRANGEPLAINLOOSE', "[v=\\s]*(".concat(src[t.XRANGEIDENTIFIERLOOSE], ")") + "(?:\\.(".concat(src[t.XRANGEIDENTIFIERLOOSE], ")") + "(?:\\.(".concat(src[t.XRANGEIDENTIFIERLOOSE], ")") + "(?:".concat(src[t.PRERELEASELOOSE], ")?").concat(src[t.BUILD], "?") + ")?)?");
+      createToken('XRANGE', "^".concat(src[t.GTLT], "\\s*").concat(src[t.XRANGEPLAIN], "$"));
+      createToken('XRANGELOOSE', "^".concat(src[t.GTLT], "\\s*").concat(src[t.XRANGEPLAINLOOSE], "$")); // Coercion.
+      // Extract anything that could conceivably be a part of a valid semver
+
+      createToken('COERCE', "".concat('(^|[^\\d])' + '(\\d{1,').concat(MAX_SAFE_COMPONENT_LENGTH, "})") + "(?:\\.(\\d{1,".concat(MAX_SAFE_COMPONENT_LENGTH, "}))?") + "(?:\\.(\\d{1,".concat(MAX_SAFE_COMPONENT_LENGTH, "}))?") + "(?:$|[^\\d])");
+      createToken('COERCERTL', src[t.COERCE], true); // Tilde ranges.
+      // Meaning is "reasonably at or greater than"
+
+      createToken('LONETILDE', '(?:~>?)');
+      createToken('TILDETRIM', "(\\s*)".concat(src[t.LONETILDE], "\\s+"), true);
+      exports.tildeTrimReplace = '$1~';
+      createToken('TILDE', "^".concat(src[t.LONETILDE]).concat(src[t.XRANGEPLAIN], "$"));
+      createToken('TILDELOOSE', "^".concat(src[t.LONETILDE]).concat(src[t.XRANGEPLAINLOOSE], "$")); // Caret ranges.
+      // Meaning is "at least and backwards compatible with"
+
+      createToken('LONECARET', '(?:\\^)');
+      createToken('CARETTRIM', "(\\s*)".concat(src[t.LONECARET], "\\s+"), true);
+      exports.caretTrimReplace = '$1^';
+      createToken('CARET', "^".concat(src[t.LONECARET]).concat(src[t.XRANGEPLAIN], "$"));
+      createToken('CARETLOOSE', "^".concat(src[t.LONECARET]).concat(src[t.XRANGEPLAINLOOSE], "$")); // A simple gt/lt/eq thing, or just "" to indicate "any version"
+
+      createToken('COMPARATORLOOSE', "^".concat(src[t.GTLT], "\\s*(").concat(src[t.LOOSEPLAIN], ")$|^$"));
+      createToken('COMPARATOR', "^".concat(src[t.GTLT], "\\s*(").concat(src[t.FULLPLAIN], ")$|^$")); // An expression to strip any whitespace between the gtlt and the thing
+      // it modifies, so that `> 1.2.3` ==> `>1.2.3`
+
+      createToken('COMPARATORTRIM', "(\\s*)".concat(src[t.GTLT], "\\s*(").concat(src[t.LOOSEPLAIN], "|").concat(src[t.XRANGEPLAIN], ")"), true);
+      exports.comparatorTrimReplace = '$1$2$3'; // Something like `1.2.3 - 1.2.4`
+      // Note that these all use the loose form, because they'll be
+      // checked against either the strict or loose comparator form
+      // later.
+
+      createToken('HYPHENRANGE', "^\\s*(".concat(src[t.XRANGEPLAIN], ")") + "\\s+-\\s+" + "(".concat(src[t.XRANGEPLAIN], ")") + "\\s*$");
+      createToken('HYPHENRANGELOOSE', "^\\s*(".concat(src[t.XRANGEPLAINLOOSE], ")") + "\\s+-\\s+" + "(".concat(src[t.XRANGEPLAINLOOSE], ")") + "\\s*$"); // Star ranges basically just allow anything at all.
+
+      createToken('STAR', '(<|>)?=?\\s*\\*'); // >=0.0.0 is like a star
+
+      createToken('GTE0', '^\\s*>=\\s*0\.0\.0\\s*$');
+      createToken('GTE0PRE', '^\\s*>=\\s*0\.0\.0-0\\s*$');
+    })(re$3, re$3.exports);
+
+    const numeric = /^[0-9]+$/;
+
+    const compareIdentifiers$1 = (a, b) => {
+      const anum = numeric.test(a);
+      const bnum = numeric.test(b);
+
+      if (anum && bnum) {
+        a = +a;
+        b = +b;
+      }
+
+      return a === b ? 0 : anum && !bnum ? -1 : bnum && !anum ? 1 : a < b ? -1 : 1;
+    };
+
+    const rcompareIdentifiers = (a, b) => compareIdentifiers$1(b, a);
+
+    var identifiers = {
+      compareIdentifiers: compareIdentifiers$1,
+      rcompareIdentifiers
+    };
+
+    const debug$2 = debug_1;
+    const {
+      MAX_LENGTH,
+      MAX_SAFE_INTEGER
+    } = constants;
+    const {
+      re: re$2,
+      t: t$2
+    } = re$3.exports;
+    const parseOptions$2 = parseOptions_1;
+    const {
+      compareIdentifiers
+    } = identifiers;
+
+    class SemVer$3 {
+      constructor(version, options) {
+        options = parseOptions$2(options);
+
+        if (version instanceof SemVer$3) {
+          if (version.loose === !!options.loose && version.includePrerelease === !!options.includePrerelease) {
+            return version;
+          } else {
+            version = version.version;
+          }
+        } else if (typeof version !== 'string') {
+          throw new TypeError("Invalid Version: ".concat(version));
+        }
+
+        if (version.length > MAX_LENGTH) {
+          throw new TypeError("version is longer than ".concat(MAX_LENGTH, " characters"));
+        }
+
+        debug$2('SemVer', version, options);
+        this.options = options;
+        this.loose = !!options.loose; // this isn't actually relevant for versions, but keep it so that we
+        // don't run into trouble passing this.options around.
+
+        this.includePrerelease = !!options.includePrerelease;
+        const m = version.trim().match(options.loose ? re$2[t$2.LOOSE] : re$2[t$2.FULL]);
+
+        if (!m) {
+          throw new TypeError("Invalid Version: ".concat(version));
+        }
+
+        this.raw = version; // these are actually numbers
+
+        this.major = +m[1];
+        this.minor = +m[2];
+        this.patch = +m[3];
+
+        if (this.major > MAX_SAFE_INTEGER || this.major < 0) {
+          throw new TypeError('Invalid major version');
+        }
+
+        if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) {
+          throw new TypeError('Invalid minor version');
+        }
+
+        if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) {
+          throw new TypeError('Invalid patch version');
+        } // numberify any prerelease numeric ids
+
+
+        if (!m[4]) {
+          this.prerelease = [];
+        } else {
+          this.prerelease = m[4].split('.').map(id => {
+            if (/^[0-9]+$/.test(id)) {
+              const num = +id;
+
+              if (num >= 0 && num < MAX_SAFE_INTEGER) {
+                return num;
+              }
+            }
+
+            return id;
+          });
+        }
+
+        this.build = m[5] ? m[5].split('.') : [];
+        this.format();
+      }
+
+      format() {
+        this.version = "".concat(this.major, ".").concat(this.minor, ".").concat(this.patch);
+
+        if (this.prerelease.length) {
+          this.version += "-".concat(this.prerelease.join('.'));
+        }
+
+        return this.version;
+      }
+
+      toString() {
+        return this.version;
+      }
+
+      compare(other) {
+        debug$2('SemVer.compare', this.version, this.options, other);
+
+        if (!(other instanceof SemVer$3)) {
+          if (typeof other === 'string' && other === this.version) {
+            return 0;
+          }
+
+          other = new SemVer$3(other, this.options);
+        }
+
+        if (other.version === this.version) {
+          return 0;
+        }
+
+        return this.compareMain(other) || this.comparePre(other);
+      }
+
+      compareMain(other) {
+        if (!(other instanceof SemVer$3)) {
+          other = new SemVer$3(other, this.options);
+        }
+
+        return compareIdentifiers(this.major, other.major) || compareIdentifiers(this.minor, other.minor) || compareIdentifiers(this.patch, other.patch);
+      }
+
+      comparePre(other) {
+        if (!(other instanceof SemVer$3)) {
+          other = new SemVer$3(other, this.options);
+        } // NOT having a prerelease is > having one
+
+
+        if (this.prerelease.length && !other.prerelease.length) {
+          return -1;
+        } else if (!this.prerelease.length && other.prerelease.length) {
+          return 1;
+        } else if (!this.prerelease.length && !other.prerelease.length) {
+          return 0;
+        }
+
+        let i = 0;
+
+        do {
+          const a = this.prerelease[i];
+          const b = other.prerelease[i];
+          debug$2('prerelease compare', i, a, b);
+
+          if (a === undefined && b === undefined) {
+            return 0;
+          } else if (b === undefined) {
+            return 1;
+          } else if (a === undefined) {
+            return -1;
+          } else if (a === b) {
+            continue;
+          } else {
+            return compareIdentifiers(a, b);
+          }
+        } while (++i);
+      }
+
+      compareBuild(other) {
+        if (!(other instanceof SemVer$3)) {
+          other = new SemVer$3(other, this.options);
+        }
+
+        let i = 0;
+
+        do {
+          const a = this.build[i];
+          const b = other.build[i];
+          debug$2('prerelease compare', i, a, b);
+
+          if (a === undefined && b === undefined) {
+            return 0;
+          } else if (b === undefined) {
+            return 1;
+          } else if (a === undefined) {
+            return -1;
+          } else if (a === b) {
+            continue;
+          } else {
+            return compareIdentifiers(a, b);
+          }
+        } while (++i);
+      } // preminor will bump the version up to the next minor release, and immediately
+      // down to pre-release. premajor and prepatch work the same way.
+
+
+      inc(release, identifier) {
+        switch (release) {
+          case 'premajor':
+            this.prerelease.length = 0;
+            this.patch = 0;
+            this.minor = 0;
+            this.major++;
+            this.inc('pre', identifier);
+            break;
+
+          case 'preminor':
+            this.prerelease.length = 0;
+            this.patch = 0;
+            this.minor++;
+            this.inc('pre', identifier);
+            break;
+
+          case 'prepatch':
+            // If this is already a prerelease, it will bump to the next version
+            // drop any prereleases that might already exist, since they are not
+            // relevant at this point.
+            this.prerelease.length = 0;
+            this.inc('patch', identifier);
+            this.inc('pre', identifier);
+            break;
+          // If the input is a non-prerelease version, this acts the same as
+          // prepatch.
+
+          case 'prerelease':
+            if (this.prerelease.length === 0) {
+              this.inc('patch', identifier);
+            }
+
+            this.inc('pre', identifier);
+            break;
+
+          case 'major':
+            // If this is a pre-major version, bump up to the same major version.
+            // Otherwise increment major.
+            // 1.0.0-5 bumps to 1.0.0
+            // 1.1.0 bumps to 2.0.0
+            if (this.minor !== 0 || this.patch !== 0 || this.prerelease.length === 0) {
+              this.major++;
+            }
+
+            this.minor = 0;
+            this.patch = 0;
+            this.prerelease = [];
+            break;
+
+          case 'minor':
+            // If this is a pre-minor version, bump up to the same minor version.
+            // Otherwise increment minor.
+            // 1.2.0-5 bumps to 1.2.0
+            // 1.2.1 bumps to 1.3.0
+            if (this.patch !== 0 || this.prerelease.length === 0) {
+              this.minor++;
+            }
+
+            this.patch = 0;
+            this.prerelease = [];
+            break;
+
+          case 'patch':
+            // If this is not a pre-release version, it will increment the patch.
+            // If it is a pre-release it will bump up to the same patch version.
+            // 1.2.0-5 patches to 1.2.0
+            // 1.2.0 patches to 1.2.1
+            if (this.prerelease.length === 0) {
+              this.patch++;
+            }
+
+            this.prerelease = [];
+            break;
+          // This probably shouldn't be used publicly.
+          // 1.0.0 'pre' would become 1.0.0-0 which is the wrong direction.
+
+          case 'pre':
+            if (this.prerelease.length === 0) {
+              this.prerelease = [0];
+            } else {
+              let i = this.prerelease.length;
+
+              while (--i >= 0) {
+                if (typeof this.prerelease[i] === 'number') {
+                  this.prerelease[i]++;
+                  i = -2;
+                }
+              }
+
+              if (i === -1) {
+                // didn't increment anything
+                this.prerelease.push(0);
+              }
+            }
+
+            if (identifier) {
+              // 1.2.0-beta.1 bumps to 1.2.0-beta.2,
+              // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0
+              if (this.prerelease[0] === identifier) {
+                if (isNaN(this.prerelease[1])) {
+                  this.prerelease = [identifier, 0];
+                }
+              } else {
+                this.prerelease = [identifier, 0];
+              }
+            }
+
+            break;
+
+          default:
+            throw new Error("invalid increment argument: ".concat(release));
+        }
+
+        this.format();
+        this.raw = this.version;
+        return this;
+      }
+
+    }
+
+    var semver = SemVer$3;
+
+    const SemVer$2 = semver;
+
+    const compare$6 = (a, b, loose) => new SemVer$2(a, loose).compare(new SemVer$2(b, loose));
+
+    var compare_1 = compare$6;
+
+    const compare$5 = compare_1;
+
+    const eq$1 = (a, b, loose) => compare$5(a, b, loose) === 0;
+
+    var eq_1 = eq$1;
+
+    const compare$4 = compare_1;
+
+    const neq$1 = (a, b, loose) => compare$4(a, b, loose) !== 0;
+
+    var neq_1 = neq$1;
+
+    const compare$3 = compare_1;
+
+    const gt$1 = (a, b, loose) => compare$3(a, b, loose) > 0;
+
+    var gt_1 = gt$1;
+
+    const compare$2 = compare_1;
+
+    const gte$1 = (a, b, loose) => compare$2(a, b, loose) >= 0;
+
+    var gte_1 = gte$1;
+
+    const compare$1 = compare_1;
+
+    const lt$1 = (a, b, loose) => compare$1(a, b, loose) < 0;
+
+    var lt_1 = lt$1;
+
+    const compare = compare_1;
+
+    const lte$1 = (a, b, loose) => compare(a, b, loose) <= 0;
+
+    var lte_1 = lte$1;
+
+    const eq = eq_1;
+    const neq = neq_1;
+    const gt = gt_1;
+    const gte = gte_1;
+    const lt = lt_1;
+    const lte = lte_1;
+
+    const cmp$1 = (a, op, b, loose) => {
+      switch (op) {
+        case '===':
+          if (typeof a === 'object') a = a.version;
+          if (typeof b === 'object') b = b.version;
+          return a === b;
+
+        case '!==':
+          if (typeof a === 'object') a = a.version;
+          if (typeof b === 'object') b = b.version;
+          return a !== b;
+
+        case '':
+        case '=':
+        case '==':
+          return eq(a, b, loose);
+
+        case '!=':
+          return neq(a, b, loose);
+
+        case '>':
+          return gt(a, b, loose);
+
+        case '>=':
+          return gte(a, b, loose);
+
+        case '<':
+          return lt(a, b, loose);
+
+        case '<=':
+          return lte(a, b, loose);
+
+        default:
+          throw new TypeError("Invalid operator: ".concat(op));
+      }
+    };
+
+    var cmp_1 = cmp$1;
+
+    const ANY = Symbol('SemVer ANY'); // hoisted class for cyclic dependency
+
+    class Comparator$1 {
+      static get ANY() {
+        return ANY;
+      }
+
+      constructor(comp, options) {
+        options = parseOptions$1(options);
+
+        if (comp instanceof Comparator$1) {
+          if (comp.loose === !!options.loose) {
+            return comp;
+          } else {
+            comp = comp.value;
+          }
+        }
+
+        debug$1('comparator', comp, options);
+        this.options = options;
+        this.loose = !!options.loose;
+        this.parse(comp);
+
+        if (this.semver === ANY) {
+          this.value = '';
+        } else {
+          this.value = this.operator + this.semver.version;
+        }
+
+        debug$1('comp', this);
+      }
+
+      parse(comp) {
+        const r = this.options.loose ? re$1[t$1.COMPARATORLOOSE] : re$1[t$1.COMPARATOR];
+        const m = comp.match(r);
+
+        if (!m) {
+          throw new TypeError("Invalid comparator: ".concat(comp));
+        }
+
+        this.operator = m[1] !== undefined ? m[1] : '';
+
+        if (this.operator === '=') {
+          this.operator = '';
+        } // if it literally is just '>' or '' then allow anything.
+
+
+        if (!m[2]) {
+          this.semver = ANY;
+        } else {
+          this.semver = new SemVer$1(m[2], this.options.loose);
+        }
+      }
+
+      toString() {
+        return this.value;
+      }
+
+      test(version) {
+        debug$1('Comparator.test', version, this.options.loose);
+
+        if (this.semver === ANY || version === ANY) {
+          return true;
+        }
+
+        if (typeof version === 'string') {
+          try {
+            version = new SemVer$1(version, this.options);
+          } catch (er) {
+            return false;
+          }
+        }
+
+        return cmp(version, this.operator, this.semver, this.options);
+      }
+
+      intersects(comp, options) {
+        if (!(comp instanceof Comparator$1)) {
+          throw new TypeError('a Comparator is required');
+        }
+
+        if (!options || typeof options !== 'object') {
+          options = {
+            loose: !!options,
+            includePrerelease: false
+          };
+        }
+
+        if (this.operator === '') {
+          if (this.value === '') {
+            return true;
+          }
+
+          return new Range$2(comp.value, options).test(this.value);
+        } else if (comp.operator === '') {
+          if (comp.value === '') {
+            return true;
+          }
+
+          return new Range$2(this.value, options).test(comp.semver);
+        }
+
+        const sameDirectionIncreasing = (this.operator === '>=' || this.operator === '>') && (comp.operator === '>=' || comp.operator === '>');
+        const sameDirectionDecreasing = (this.operator === '<=' || this.operator === '<') && (comp.operator === '<=' || comp.operator === '<');
+        const sameSemVer = this.semver.version === comp.semver.version;
+        const differentDirectionsInclusive = (this.operator === '>=' || this.operator === '<=') && (comp.operator === '>=' || comp.operator === '<=');
+        const oppositeDirectionsLessThan = cmp(this.semver, '<', comp.semver, options) && (this.operator === '>=' || this.operator === '>') && (comp.operator === '<=' || comp.operator === '<');
+        const oppositeDirectionsGreaterThan = cmp(this.semver, '>', comp.semver, options) && (this.operator === '<=' || this.operator === '<') && (comp.operator === '>=' || comp.operator === '>');
+        return sameDirectionIncreasing || sameDirectionDecreasing || sameSemVer && differentDirectionsInclusive || oppositeDirectionsLessThan || oppositeDirectionsGreaterThan;
+      }
+
+    }
+
+    var comparator = Comparator$1;
+    const parseOptions$1 = parseOptions_1;
+    const {
+      re: re$1,
+      t: t$1
+    } = re$3.exports;
+    const cmp = cmp_1;
+    const debug$1 = debug_1;
+    const SemVer$1 = semver;
+    const Range$2 = range;
+
+    class Range$1 {
+      constructor(range, options) {
+        options = parseOptions(options);
+
+        if (range instanceof Range$1) {
+          if (range.loose === !!options.loose && range.includePrerelease === !!options.includePrerelease) {
+            return range;
+          } else {
+            return new Range$1(range.raw, options);
+          }
+        }
+
+        if (range instanceof Comparator) {
+          // just put it in the set and return
+          this.raw = range.value;
+          this.set = [[range]];
+          this.format();
+          return this;
+        }
+
+        this.options = options;
+        this.loose = !!options.loose;
+        this.includePrerelease = !!options.includePrerelease; // First, split based on boolean or ||
+
+        this.raw = range;
+        this.set = range.split(/\s*\|\|\s*/) // map the range to a 2d array of comparators
+        .map(range => this.parseRange(range.trim())) // throw out any comparator lists that are empty
+        // this generally means that it was not a valid range, which is allowed
+        // in loose mode, but will still throw if the WHOLE range is invalid.
+        .filter(c => c.length);
+
+        if (!this.set.length) {
+          throw new TypeError("Invalid SemVer Range: ".concat(range));
+        } // if we have any that are not the null set, throw out null sets.
+
+
+        if (this.set.length > 1) {
+          // keep the first one, in case they're all null sets
+          const first = this.set[0];
+          this.set = this.set.filter(c => !isNullSet(c[0]));
+          if (this.set.length === 0) this.set = [first];else if (this.set.length > 1) {
+            // if we have any that are *, then the range is just *
+            for (const c of this.set) {
+              if (c.length === 1 && isAny(c[0])) {
+                this.set = [c];
+                break;
+              }
+            }
+          }
+        }
+
+        this.format();
+      }
+
+      format() {
+        this.range = this.set.map(comps => {
+          return comps.join(' ').trim();
+        }).join('||').trim();
+        return this.range;
+      }
+
+      toString() {
+        return this.range;
+      }
+
+      parseRange(range) {
+        range = range.trim(); // memoize range parsing for performance.
+        // this is a very hot path, and fully deterministic.
+
+        const memoOpts = Object.keys(this.options).join(',');
+        const memoKey = "parseRange:".concat(memoOpts, ":").concat(range);
+        const cached = cache.get(memoKey);
+        if (cached) return cached;
+        const loose = this.options.loose; // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
+
+        const hr = loose ? re[t.HYPHENRANGELOOSE] : re[t.HYPHENRANGE];
+        range = range.replace(hr, hyphenReplace(this.options.includePrerelease));
+        debug('hyphen replace', range); // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5`
+
+        range = range.replace(re[t.COMPARATORTRIM], comparatorTrimReplace);
+        debug('comparator trim', range, re[t.COMPARATORTRIM]); // `~ 1.2.3` => `~1.2.3`
+
+        range = range.replace(re[t.TILDETRIM], tildeTrimReplace); // `^ 1.2.3` => `^1.2.3`
+
+        range = range.replace(re[t.CARETTRIM], caretTrimReplace); // normalize spaces
+
+        range = range.split(/\s+/).join(' '); // At this point, the range is completely trimmed and
+        // ready to be split into comparators.
+
+        const compRe = loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR];
+        const rangeList = range.split(' ').map(comp => parseComparator(comp, this.options)).join(' ').split(/\s+/) // >=0.0.0 is equivalent to *
+        .map(comp => replaceGTE0(comp, this.options)) // in loose mode, throw out any that are not valid comparators
+        .filter(this.options.loose ? comp => !!comp.match(compRe) : () => true).map(comp => new Comparator(comp, this.options)); // if any comparators are the null set, then replace with JUST null set
+        // if more than one comparator, remove any * comparators
+        // also, don't include the same comparator more than once
+
+        rangeList.length;
+        const rangeMap = new Map();
+
+        for (const comp of rangeList) {
+          if (isNullSet(comp)) return [comp];
+          rangeMap.set(comp.value, comp);
+        }
+
+        if (rangeMap.size > 1 && rangeMap.has('')) rangeMap.delete('');
+        const result = [...rangeMap.values()];
+        cache.set(memoKey, result);
+        return result;
+      }
+
+      intersects(range, options) {
+        if (!(range instanceof Range$1)) {
+          throw new TypeError('a Range is required');
+        }
+
+        return this.set.some(thisComparators => {
+          return isSatisfiable(thisComparators, options) && range.set.some(rangeComparators => {
+            return isSatisfiable(rangeComparators, options) && thisComparators.every(thisComparator => {
+              return rangeComparators.every(rangeComparator => {
+                return thisComparator.intersects(rangeComparator, options);
+              });
+            });
+          });
+        });
+      } // if ANY of the sets match ALL of its comparators, then pass
+
+
+      test(version) {
+        if (!version) {
+          return false;
+        }
+
+        if (typeof version === 'string') {
+          try {
+            version = new SemVer(version, this.options);
+          } catch (er) {
+            return false;
+          }
+        }
+
+        for (let i = 0; i < this.set.length; i++) {
+          if (testSet(this.set[i], version, this.options)) {
+            return true;
+          }
+        }
+
+        return false;
+      }
+
+    }
+
+    var range = Range$1;
+    const LRU = lruCache;
+    const cache = new LRU({
+      max: 1000
+    });
+    const parseOptions = parseOptions_1;
+    const Comparator = comparator;
+    const debug = debug_1;
+    const SemVer = semver;
+    const {
+      re,
+      t,
+      comparatorTrimReplace,
+      tildeTrimReplace,
+      caretTrimReplace
+    } = re$3.exports;
+
+    const isNullSet = c => c.value === '<0.0.0-0';
+
+    const isAny = c => c.value === ''; // take a set of comparators and determine whether there
+    // exists a version which can satisfy it
+
+
+    const isSatisfiable = (comparators, options) => {
+      let result = true;
+      const remainingComparators = comparators.slice();
+      let testComparator = remainingComparators.pop();
+
+      while (result && remainingComparators.length) {
+        result = remainingComparators.every(otherComparator => {
+          return testComparator.intersects(otherComparator, options);
+        });
+        testComparator = remainingComparators.pop();
+      }
+
+      return result;
+    }; // comprised of xranges, tildes, stars, and gtlt's at this point.
+    // already replaced the hyphen ranges
+    // turn into a set of JUST comparators.
+
+
+    const parseComparator = (comp, options) => {
+      debug('comp', comp, options);
+      comp = replaceCarets(comp, options);
+      debug('caret', comp);
+      comp = replaceTildes(comp, options);
+      debug('tildes', comp);
+      comp = replaceXRanges(comp, options);
+      debug('xrange', comp);
+      comp = replaceStars(comp, options);
+      debug('stars', comp);
+      return comp;
+    };
+
+    const isX = id => !id || id.toLowerCase() === 'x' || id === '*'; // ~, ~> --> * (any, kinda silly)
+    // ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0-0
+    // ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0-0
+    // ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0-0
+    // ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0-0
+    // ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0-0
+
+
+    const replaceTildes = (comp, options) => comp.trim().split(/\s+/).map(comp => {
+      return replaceTilde(comp, options);
+    }).join(' ');
+
+    const replaceTilde = (comp, options) => {
+      const r = options.loose ? re[t.TILDELOOSE] : re[t.TILDE];
+      return comp.replace(r, (_, M, m, p, pr) => {
+        debug('tilde', comp, _, M, m, p, pr);
+        let ret;
+
+        if (isX(M)) {
+          ret = '';
+        } else if (isX(m)) {
+          ret = ">=".concat(M, ".0.0 <").concat(+M + 1, ".0.0-0");
+        } else if (isX(p)) {
+          // ~1.2 == >=1.2.0 <1.3.0-0
+          ret = ">=".concat(M, ".").concat(m, ".0 <").concat(M, ".").concat(+m + 1, ".0-0");
+        } else if (pr) {
+          debug('replaceTilde pr', pr);
+          ret = ">=".concat(M, ".").concat(m, ".").concat(p, "-").concat(pr, " <").concat(M, ".").concat(+m + 1, ".0-0");
+        } else {
+          // ~1.2.3 == >=1.2.3 <1.3.0-0
+          ret = ">=".concat(M, ".").concat(m, ".").concat(p, " <").concat(M, ".").concat(+m + 1, ".0-0");
+        }
+
+        debug('tilde return', ret);
+        return ret;
+      });
+    }; // ^ --> * (any, kinda silly)
+    // ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0-0
+    // ^2.0, ^2.0.x --> >=2.0.0 <3.0.0-0
+    // ^1.2, ^1.2.x --> >=1.2.0 <2.0.0-0
+    // ^1.2.3 --> >=1.2.3 <2.0.0-0
+    // ^1.2.0 --> >=1.2.0 <2.0.0-0
+
+
+    const replaceCarets = (comp, options) => comp.trim().split(/\s+/).map(comp => {
+      return replaceCaret(comp, options);
+    }).join(' ');
+
+    const replaceCaret = (comp, options) => {
+      debug('caret', comp, options);
+      const r = options.loose ? re[t.CARETLOOSE] : re[t.CARET];
+      const z = options.includePrerelease ? '-0' : '';
+      return comp.replace(r, (_, M, m, p, pr) => {
+        debug('caret', comp, _, M, m, p, pr);
+        let ret;
+
+        if (isX(M)) {
+          ret = '';
+        } else if (isX(m)) {
+          ret = ">=".concat(M, ".0.0").concat(z, " <").concat(+M + 1, ".0.0-0");
+        } else if (isX(p)) {
+          if (M === '0') {
+            ret = ">=".concat(M, ".").concat(m, ".0").concat(z, " <").concat(M, ".").concat(+m + 1, ".0-0");
+          } else {
+            ret = ">=".concat(M, ".").concat(m, ".0").concat(z, " <").concat(+M + 1, ".0.0-0");
+          }
+        } else if (pr) {
+          debug('replaceCaret pr', pr);
+
+          if (M === '0') {
+            if (m === '0') {
+              ret = ">=".concat(M, ".").concat(m, ".").concat(p, "-").concat(pr, " <").concat(M, ".").concat(m, ".").concat(+p + 1, "-0");
+            } else {
+              ret = ">=".concat(M, ".").concat(m, ".").concat(p, "-").concat(pr, " <").concat(M, ".").concat(+m + 1, ".0-0");
+            }
+          } else {
+            ret = ">=".concat(M, ".").concat(m, ".").concat(p, "-").concat(pr, " <").concat(+M + 1, ".0.0-0");
+          }
+        } else {
+          debug('no pr');
+
+          if (M === '0') {
+            if (m === '0') {
+              ret = ">=".concat(M, ".").concat(m, ".").concat(p).concat(z, " <").concat(M, ".").concat(m, ".").concat(+p + 1, "-0");
+            } else {
+              ret = ">=".concat(M, ".").concat(m, ".").concat(p).concat(z, " <").concat(M, ".").concat(+m + 1, ".0-0");
+            }
+          } else {
+            ret = ">=".concat(M, ".").concat(m, ".").concat(p, " <").concat(+M + 1, ".0.0-0");
+          }
+        }
+
+        debug('caret return', ret);
+        return ret;
+      });
+    };
+
+    const replaceXRanges = (comp, options) => {
+      debug('replaceXRanges', comp, options);
+      return comp.split(/\s+/).map(comp => {
+        return replaceXRange(comp, options);
+      }).join(' ');
+    };
+
+    const replaceXRange = (comp, options) => {
+      comp = comp.trim();
+      const r = options.loose ? re[t.XRANGELOOSE] : re[t.XRANGE];
+      return comp.replace(r, (ret, gtlt, M, m, p, pr) => {
+        debug('xRange', comp, ret, gtlt, M, m, p, pr);
+        const xM = isX(M);
+        const xm = xM || isX(m);
+        const xp = xm || isX(p);
+        const anyX = xp;
+
+        if (gtlt === '=' && anyX) {
+          gtlt = '';
+        } // if we're including prereleases in the match, then we need
+        // to fix this to -0, the lowest possible prerelease value
+
+
+        pr = options.includePrerelease ? '-0' : '';
+
+        if (xM) {
+          if (gtlt === '>' || gtlt === '<') {
+            // nothing is allowed
+            ret = '<0.0.0-0';
+          } else {
+            // nothing is forbidden
+            ret = '*';
+          }
+        } else if (gtlt && anyX) {
+          // we know patch is an x, because we have any x at all.
+          // replace X with 0
+          if (xm) {
+            m = 0;
+          }
+
+          p = 0;
+
+          if (gtlt === '>') {
+            // >1 => >=2.0.0
+            // >1.2 => >=1.3.0
+            gtlt = '>=';
+
+            if (xm) {
+              M = +M + 1;
+              m = 0;
+              p = 0;
+            } else {
+              m = +m + 1;
+              p = 0;
+            }
+          } else if (gtlt === '<=') {
+            // <=0.7.x is actually <0.8.0, since any 0.7.x should
+            // pass.  Similarly, <=7.x is actually <8.0.0, etc.
+            gtlt = '<';
+
+            if (xm) {
+              M = +M + 1;
+            } else {
+              m = +m + 1;
+            }
+          }
+
+          if (gtlt === '<') pr = '-0';
+          ret = "".concat(gtlt + M, ".").concat(m, ".").concat(p).concat(pr);
+        } else if (xm) {
+          ret = ">=".concat(M, ".0.0").concat(pr, " <").concat(+M + 1, ".0.0-0");
+        } else if (xp) {
+          ret = ">=".concat(M, ".").concat(m, ".0").concat(pr, " <").concat(M, ".").concat(+m + 1, ".0-0");
+        }
+
+        debug('xRange return', ret);
+        return ret;
+      });
+    }; // Because * is AND-ed with everything else in the comparator,
+    // and '' means "any version", just remove the *s entirely.
+
+
+    const replaceStars = (comp, options) => {
+      debug('replaceStars', comp, options); // Looseness is ignored here.  star is always as loose as it gets!
+
+      return comp.trim().replace(re[t.STAR], '');
+    };
+
+    const replaceGTE0 = (comp, options) => {
+      debug('replaceGTE0', comp, options);
+      return comp.trim().replace(re[options.includePrerelease ? t.GTE0PRE : t.GTE0], '');
+    }; // This function is passed to string.replace(re[t.HYPHENRANGE])
+    // M, m, patch, prerelease, build
+    // 1.2 - 3.4.5 => >=1.2.0 <=3.4.5
+    // 1.2.3 - 3.4 => >=1.2.0 <3.5.0-0 Any 3.4.x will do
+    // 1.2 - 3.4 => >=1.2.0 <3.5.0-0
+
+
+    const hyphenReplace = incPr => ($0, from, fM, fm, fp, fpr, fb, to, tM, tm, tp, tpr, tb) => {
+      if (isX(fM)) {
+        from = '';
+      } else if (isX(fm)) {
+        from = ">=".concat(fM, ".0.0").concat(incPr ? '-0' : '');
+      } else if (isX(fp)) {
+        from = ">=".concat(fM, ".").concat(fm, ".0").concat(incPr ? '-0' : '');
+      } else if (fpr) {
+        from = ">=".concat(from);
+      } else {
+        from = ">=".concat(from).concat(incPr ? '-0' : '');
+      }
+
+      if (isX(tM)) {
+        to = '';
+      } else if (isX(tm)) {
+        to = "<".concat(+tM + 1, ".0.0-0");
+      } else if (isX(tp)) {
+        to = "<".concat(tM, ".").concat(+tm + 1, ".0-0");
+      } else if (tpr) {
+        to = "<=".concat(tM, ".").concat(tm, ".").concat(tp, "-").concat(tpr);
+      } else if (incPr) {
+        to = "<".concat(tM, ".").concat(tm, ".").concat(+tp + 1, "-0");
+      } else {
+        to = "<=".concat(to);
+      }
+
+      return "".concat(from, " ").concat(to).trim();
+    };
+
+    const testSet = (set, version, options) => {
+      for (let i = 0; i < set.length; i++) {
+        if (!set[i].test(version)) {
+          return false;
+        }
+      }
+
+      if (version.prerelease.length && !options.includePrerelease) {
+        // Find the set of versions that are allowed to have prereleases
+        // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0
+        // That should allow `1.2.3-pr.2` to pass.
+        // However, `1.2.4-alpha.notready` should NOT be allowed,
+        // even though it's within the range set by the comparators.
+        for (let i = 0; i < set.length; i++) {
+          debug(set[i].semver);
+
+          if (set[i].semver === Comparator.ANY) {
+            continue;
+          }
+
+          if (set[i].semver.prerelease.length > 0) {
+            const allowed = set[i].semver;
+
+            if (allowed.major === version.major && allowed.minor === version.minor && allowed.patch === version.patch) {
+              return true;
+            }
+          }
+        } // Version has a -pre, but it's not one of the ones we like.
+
+
+        return false;
+      }
+
+      return true;
+    };
+
+    const Range = range;
+
+    const satisfies = (version, range, options) => {
+      try {
+        range = new Range(range, options);
+      } catch (er) {
+        return false;
+      }
+
+      return range.test(version);
+    };
+
+    var satisfies_1 = satisfies;
+
+    function adjustSpatial(item, encode, swap) {
+      let t;
+
+      if (encode.x2) {
+        if (encode.x) {
+          if (swap && item.x > item.x2) {
+            t = item.x;
+            item.x = item.x2;
+            item.x2 = t;
+          }
+
+          item.width = item.x2 - item.x;
+        } else {
+          item.x = item.x2 - (item.width || 0);
+        }
+      }
+
+      if (encode.xc) {
+        item.x = item.xc - (item.width || 0) / 2;
+      }
+
+      if (encode.y2) {
+        if (encode.y) {
+          if (swap && item.y > item.y2) {
+            t = item.y;
+            item.y = item.y2;
+            item.y2 = t;
+          }
+
+          item.height = item.y2 - item.y;
+        } else {
+          item.y = item.y2 - (item.height || 0);
+        }
+      }
+
+      if (encode.yc) {
+        item.y = item.yc - (item.height || 0) / 2;
+      }
+    }
+
+    var Constants = {
+      NaN: NaN,
+      E: Math.E,
+      LN2: Math.LN2,
+      LN10: Math.LN10,
+      LOG2E: Math.LOG2E,
+      LOG10E: Math.LOG10E,
+      PI: Math.PI,
+      SQRT1_2: Math.SQRT1_2,
+      SQRT2: Math.SQRT2,
+      MIN_VALUE: Number.MIN_VALUE,
+      MAX_VALUE: Number.MAX_VALUE
+    };
+    var Ops = {
+      '*': (a, b) => a * b,
+      '+': (a, b) => a + b,
+      '-': (a, b) => a - b,
+      '/': (a, b) => a / b,
+      '%': (a, b) => a % b,
+      '>': (a, b) => a > b,
+      '<': (a, b) => a < b,
+      '<=': (a, b) => a <= b,
+      '>=': (a, b) => a >= b,
+      '==': (a, b) => a == b,
+      '!=': (a, b) => a != b,
+      '===': (a, b) => a === b,
+      '!==': (a, b) => a !== b,
+      '&': (a, b) => a & b,
+      '|': (a, b) => a | b,
+      '^': (a, b) => a ^ b,
+      '<<': (a, b) => a << b,
+      '>>': (a, b) => a >> b,
+      '>>>': (a, b) => a >>> b
+    };
+    var Unary = {
+      '+': a => +a,
+      '-': a => -a,
+      '~': a => ~a,
+      '!': a => !a
+    };
+    const slice = Array.prototype.slice;
+
+    const apply = (m, args, cast) => {
+      const obj = cast ? cast(args[0]) : args[0];
+      return obj[m].apply(obj, slice.call(args, 1));
+    };
+
+    const datetime = (y, m, d, H, M, S, ms) => new Date(y, m || 0, d != null ? d : 1, H || 0, M || 0, S || 0, ms || 0);
+
+    var Functions = {
+      // math functions
+      isNaN: Number.isNaN,
+      isFinite: Number.isFinite,
+      abs: Math.abs,
+      acos: Math.acos,
+      asin: Math.asin,
+      atan: Math.atan,
+      atan2: Math.atan2,
+      ceil: Math.ceil,
+      cos: Math.cos,
+      exp: Math.exp,
+      floor: Math.floor,
+      log: Math.log,
+      max: Math.max,
+      min: Math.min,
+      pow: Math.pow,
+      random: Math.random,
+      round: Math.round,
+      sin: Math.sin,
+      sqrt: Math.sqrt,
+      tan: Math.tan,
+      clamp: (a, b, c) => Math.max(b, Math.min(c, a)),
+      // date functions
+      now: Date.now,
+      utc: Date.UTC,
+      datetime: datetime,
+      date: d => new Date(d).getDate(),
+      day: d => new Date(d).getDay(),
+      year: d => new Date(d).getFullYear(),
+      month: d => new Date(d).getMonth(),
+      hours: d => new Date(d).getHours(),
+      minutes: d => new Date(d).getMinutes(),
+      seconds: d => new Date(d).getSeconds(),
+      milliseconds: d => new Date(d).getMilliseconds(),
+      time: d => new Date(d).getTime(),
+      timezoneoffset: d => new Date(d).getTimezoneOffset(),
+      utcdate: d => new Date(d).getUTCDate(),
+      utcday: d => new Date(d).getUTCDay(),
+      utcyear: d => new Date(d).getUTCFullYear(),
+      utcmonth: d => new Date(d).getUTCMonth(),
+      utchours: d => new Date(d).getUTCHours(),
+      utcminutes: d => new Date(d).getUTCMinutes(),
+      utcseconds: d => new Date(d).getUTCSeconds(),
+      utcmilliseconds: d => new Date(d).getUTCMilliseconds(),
+      // sequence functions
+      length: x => x.length,
+      join: function () {
+        return apply('join', arguments);
+      },
+      indexof: function () {
+        return apply('indexOf', arguments);
+      },
+      lastindexof: function () {
+        return apply('lastIndexOf', arguments);
+      },
+      slice: function () {
+        return apply('slice', arguments);
+      },
+      reverse: x => x.slice().reverse(),
+      // string functions
+      parseFloat: parseFloat,
+      parseInt: parseInt,
+      upper: x => String(x).toUpperCase(),
+      lower: x => String(x).toLowerCase(),
+      substring: function () {
+        return apply('substring', arguments, String);
+      },
+      split: function () {
+        return apply('split', arguments, String);
+      },
+      replace: function () {
+        return apply('replace', arguments, String);
+      },
+      trim: x => String(x).trim(),
+      // regexp functions
+      regexp: RegExp,
+      test: (r, t) => RegExp(r).test(t)
+    };
+    const EventFunctions = ['view', 'item', 'group', 'xy', 'x', 'y'];
+    const Visitors = {
+      Literal: ($, n) => n.value,
+      Identifier: ($, n) => {
+        const id = n.name;
+        return $.memberDepth > 0 ? id : id === 'datum' ? $.datum : id === 'event' ? $.event : id === 'item' ? $.item : Constants[id] || $.params['$' + id];
+      },
+      MemberExpression: ($, n) => {
+        const d = !n.computed,
+              o = $(n.object);
+        if (d) $.memberDepth += 1;
+        const p = $(n.property);
+        if (d) $.memberDepth -= 1;
+        return o[p];
+      },
+      CallExpression: ($, n) => {
+        const args = n.arguments;
+        let name = n.callee.name; // handle special internal functions used by encoders
+        // re-route to corresponding standard function
+
+        if (name.startsWith('_')) {
+          name = name.slice(1);
+        } // special case "if" due to conditional evaluation of branches
+
+
+        return name === 'if' ? $(args[0]) ? $(args[1]) : $(args[2]) : ($.fn[name] || Functions[name]).apply($.fn, args.map($));
+      },
+      ArrayExpression: ($, n) => n.elements.map($),
+      BinaryExpression: ($, n) => Ops[n.operator]($(n.left), $(n.right)),
+      UnaryExpression: ($, n) => Unary[n.operator]($(n.argument)),
+      ConditionalExpression: ($, n) => $(n.test) ? $(n.consequent) : $(n.alternate),
+      LogicalExpression: ($, n) => n.operator === '&&' ? $(n.left) && $(n.right) : $(n.left) || $(n.right),
+      ObjectExpression: ($, n) => n.properties.reduce((o, p) => {
+        $.memberDepth += 1;
+        const k = $(p.key);
+        $.memberDepth -= 1;
+        o[k] = $(p.value);
+        return o;
+      }, {})
+    };
+
+    function interpret(ast, fn, params, datum, event, item) {
+      const $ = n => Visitors[n.type]($, n);
+
+      $.memberDepth = 0;
+      $.fn = Object.create(fn);
+      $.params = params;
+      $.datum = datum;
+      $.event = event;
+      $.item = item; // route event functions to annotated vega event context
+
+      EventFunctions.forEach(f => $.fn[f] = function () {
+        return event.vega[f](...arguments);
+      });
+      return $(ast);
+    }
+
+    var expression = {
+      /**
+       * Parse an expression used to update an operator value.
+       */
+      operator(ctx, expr) {
+        const ast = expr.ast,
+              fn = ctx.functions;
+        return _ => interpret(ast, fn, _);
+      },
+
+      /**
+       * Parse an expression provided as an operator parameter value.
+       */
+      parameter(ctx, expr) {
+        const ast = expr.ast,
+              fn = ctx.functions;
+        return (datum, _) => interpret(ast, fn, _, datum);
+      },
+
+      /**
+       * Parse an expression applied to an event stream.
+       */
+      event(ctx, expr) {
+        const ast = expr.ast,
+              fn = ctx.functions;
+        return event => interpret(ast, fn, undefined, undefined, event);
+      },
+
+      /**
+       * Parse an expression used to handle an event-driven operator update.
+       */
+      handler(ctx, expr) {
+        const ast = expr.ast,
+              fn = ctx.functions;
+        return (_, event) => {
+          const datum = event.item && event.item.datum;
+          return interpret(ast, fn, _, datum, event);
+        };
+      },
+
+      /**
+       * Parse an expression that performs visual encoding.
+       */
+      encode(ctx, encode) {
+        const {
+          marktype,
+          channels
+        } = encode,
+              fn = ctx.functions,
+              swap = marktype === 'group' || marktype === 'image' || marktype === 'rect';
+        return (item, _) => {
+          const datum = item.datum;
+          let m = 0,
+              v;
+
+          for (const name in channels) {
+            v = interpret(channels[name].ast, fn, _, datum, undefined, item);
+
+            if (item[name] !== v) {
+              item[name] = v;
+              m = 1;
+            }
+          }
+
+          if (marktype !== 'rule') {
+            adjustSpatial(item, channels, swap);
+          }
+
+          return m;
+        };
+      }
+
+    };
+
+    function e(e) {
+      const [n, r] = /schema\/([\w-]+)\/([\w\.\-]+)\.json$/g.exec(e).slice(1, 3);
+      return {
+        library: n,
+        version: r
+      };
+    }
+
+    var name$1 = "vega-themes";
+    var version$2 = "2.10.0";
+    var description$1 = "Themes for stylized Vega and Vega-Lite visualizations.";
+    var keywords$1 = ["vega", "vega-lite", "themes", "style"];
+    var license$1 = "BSD-3-Clause";
+    var author$1 = {
+      name: "UW Interactive Data Lab",
+      url: "https://idl.cs.washington.edu"
+    };
+    var contributors$1 = [{
+      name: "Emily Gu",
+      url: "https://github.com/emilygu"
+    }, {
+      name: "Arvind Satyanarayan",
+      url: "http://arvindsatya.com"
+    }, {
+      name: "Jeffrey Heer",
+      url: "https://idl.cs.washington.edu"
+    }, {
+      name: "Dominik Moritz",
+      url: "https://www.domoritz.de"
+    }];
+    var main$1 = "build/vega-themes.js";
+    var module$1 = "build/vega-themes.module.js";
+    var unpkg$1 = "build/vega-themes.min.js";
+    var jsdelivr$1 = "build/vega-themes.min.js";
+    var types$1 = "build/vega-themes.module.d.ts";
+    var repository$1 = {
+      type: "git",
+      url: "https://github.com/vega/vega-themes.git"
+    };
+    var files$1 = ["src", "build"];
+    var scripts$1 = {
+      prebuild: "yarn clean",
+      build: "rollup -c",
+      clean: "rimraf build && rimraf examples/build",
+      "copy:data": "rsync -r node_modules/vega-datasets/data/* examples/data",
+      "copy:build": "rsync -r build/* examples/build",
+      "deploy:gh": "yarn build && mkdir -p examples/build && rsync -r build/* examples/build && gh-pages -d examples",
+      prepublishOnly: "yarn clean && yarn build",
+      preversion: "yarn lint",
+      serve: "browser-sync start -s -f build examples --serveStatic examples",
+      start: "yarn build && concurrently --kill-others -n Server,Rollup 'yarn serve' 'rollup -c -w'",
+      prepare: "beemo create-config",
+      eslintbase: "beemo eslint .",
+      format: "yarn eslintbase --fix",
+      lint: "yarn eslintbase"
+    };
+    var devDependencies$1 = {
+      "@rollup/plugin-json": "^4.1.0",
+      "@rollup/plugin-node-resolve": "^11.2.0",
+      "@wessberg/rollup-plugin-ts": "^1.3.8",
+      "browser-sync": "^2.26.14",
+      concurrently: "^6.0.0",
+      "gh-pages": "^3.1.0",
+      rollup: "^2.39.1",
+      "rollup-plugin-bundle-size": "^1.0.3",
+      "rollup-plugin-terser": "^7.0.2",
+      typescript: "^4.2.2",
+      vega: "^5.19.1",
+      "vega-lite": "^5.0.0",
+      "vega-lite-dev-config": "^0.16.1"
+    };
+    var peerDependencies$1 = {
+      vega: "*",
+      "vega-lite": "*"
+    };
+    var pkg$1 = {
+      name: name$1,
+      version: version$2,
+      description: description$1,
+      keywords: keywords$1,
+      license: license$1,
+      author: author$1,
+      contributors: contributors$1,
+      main: main$1,
+      module: module$1,
+      unpkg: unpkg$1,
+      jsdelivr: jsdelivr$1,
+      types: types$1,
+      repository: repository$1,
+      files: files$1,
+      scripts: scripts$1,
+      devDependencies: devDependencies$1,
+      peerDependencies: peerDependencies$1
+    };
+    const lightColor = '#fff';
+    const medColor = '#888';
+    const darkTheme = {
+      background: '#333',
+      title: {
+        color: lightColor,
+        subtitleColor: lightColor
+      },
+      style: {
+        'guide-label': {
+          fill: lightColor
+        },
+        'guide-title': {
+          fill: lightColor
+        }
+      },
+      axis: {
+        domainColor: lightColor,
+        gridColor: medColor,
+        tickColor: lightColor
+      }
+    };
+    const markColor = '#4572a7';
+    const excelTheme = {
+      background: '#fff',
+      arc: {
+        fill: markColor
+      },
+      area: {
+        fill: markColor
+      },
+      line: {
+        stroke: markColor,
+        strokeWidth: 2
+      },
+      path: {
+        stroke: markColor
+      },
+      rect: {
+        fill: markColor
+      },
+      shape: {
+        stroke: markColor
+      },
+      symbol: {
+        fill: markColor,
+        strokeWidth: 1.5,
+        size: 50
+      },
+      axis: {
+        bandPosition: 0.5,
+        grid: true,
+        gridColor: '#000000',
+        gridOpacity: 1,
+        gridWidth: 0.5,
+        labelPadding: 10,
+        tickSize: 5,
+        tickWidth: 0.5
+      },
+      axisBand: {
+        grid: false,
+        tickExtra: true
+      },
+      legend: {
+        labelBaseline: 'middle',
+        labelFontSize: 11,
+        symbolSize: 50,
+        symbolType: 'square'
+      },
+      range: {
+        category: ['#4572a7', '#aa4643', '#8aa453', '#71598e', '#4598ae', '#d98445', '#94aace', '#d09393', '#b9cc98', '#a99cbc']
+      }
+    };
+    const markColor$1 = '#30a2da';
+    const axisColor = '#cbcbcb';
+    const guideLabelColor = '#999';
+    const guideTitleColor = '#333';
+    const backgroundColor = '#f0f0f0';
+    const blackTitle = '#333';
+    const fiveThirtyEightTheme = {
+      arc: {
+        fill: markColor$1
+      },
+      area: {
+        fill: markColor$1
+      },
+      axis: {
+        domainColor: axisColor,
+        grid: true,
+        gridColor: axisColor,
+        gridWidth: 1,
+        labelColor: guideLabelColor,
+        labelFontSize: 10,
+        titleColor: guideTitleColor,
+        tickColor: axisColor,
+        tickSize: 10,
+        titleFontSize: 14,
+        titlePadding: 10,
+        labelPadding: 4
+      },
+      axisBand: {
+        grid: false
+      },
+      background: backgroundColor,
+      group: {
+        fill: backgroundColor
+      },
+      legend: {
+        labelColor: blackTitle,
+        labelFontSize: 11,
+        padding: 1,
+        symbolSize: 30,
+        symbolType: 'square',
+        titleColor: blackTitle,
+        titleFontSize: 14,
+        titlePadding: 10
+      },
+      line: {
+        stroke: markColor$1,
+        strokeWidth: 2
+      },
+      path: {
+        stroke: markColor$1,
+        strokeWidth: 0.5
+      },
+      rect: {
+        fill: markColor$1
+      },
+      range: {
+        category: ['#30a2da', '#fc4f30', '#e5ae38', '#6d904f', '#8b8b8b', '#b96db8', '#ff9e27', '#56cc60', '#52d2ca', '#52689e', '#545454', '#9fe4f8'],
+        diverging: ['#cc0020', '#e77866', '#f6e7e1', '#d6e8ed', '#91bfd9', '#1d78b5'],
+        heatmap: ['#d6e8ed', '#cee0e5', '#91bfd9', '#549cc6', '#1d78b5']
+      },
+      point: {
+        filled: true,
+        shape: 'circle'
+      },
+      shape: {
+        stroke: markColor$1
+      },
+      bar: {
+        binSpacing: 2,
+        fill: markColor$1,
+        stroke: null
+      },
+      title: {
+        anchor: 'start',
+        fontSize: 24,
+        fontWeight: 600,
+        offset: 20
+      }
+    };
+    const markColor$2 = '#000';
+    const ggplot2Theme = {
+      group: {
+        fill: '#e5e5e5'
+      },
+      arc: {
+        fill: markColor$2
+      },
+      area: {
+        fill: markColor$2
+      },
+      line: {
+        stroke: markColor$2
+      },
+      path: {
+        stroke: markColor$2
+      },
+      rect: {
+        fill: markColor$2
+      },
+      shape: {
+        stroke: markColor$2
+      },
+      symbol: {
+        fill: markColor$2,
+        size: 40
+      },
+      axis: {
+        domain: false,
+        grid: true,
+        gridColor: '#FFFFFF',
+        gridOpacity: 1,
+        labelColor: '#7F7F7F',
+        labelPadding: 4,
+        tickColor: '#7F7F7F',
+        tickSize: 5.67,
+        titleFontSize: 16,
+        titleFontWeight: 'normal'
+      },
+      legend: {
+        labelBaseline: 'middle',
+        labelFontSize: 11,
+        symbolSize: 40
+      },
+      range: {
+        category: ['#000000', '#7F7F7F', '#1A1A1A', '#999999', '#333333', '#B0B0B0', '#4D4D4D', '#C9C9C9', '#666666', '#DCDCDC']
+      }
+    };
+    const headlineFontSize = 22;
+    const headlineFontWeight = 'normal';
+    const labelFont = 'Benton Gothic, sans-serif';
+    const labelFontSize = 11.5;
+    const labelFontWeight = 'normal';
+    const markColor$3 = '#82c6df'; // const markHighlight = '#006d8f';
+    // const markDemocrat = '#5789b8';
+    // const markRepublican = '#d94f54';
+
+    const titleFont = 'Benton Gothic Bold, sans-serif';
+    const titleFontWeight = 'normal';
+    const titleFontSize = 13;
+    const colorSchemes = {
+      'category-6': ['#ec8431', '#829eb1', '#c89d29', '#3580b1', '#adc839', '#ab7fb4'],
+      'fire-7': ['#fbf2c7', '#f9e39c', '#f8d36e', '#f4bb6a', '#e68a4f', '#d15a40', '#ab4232'],
+      'fireandice-6': ['#e68a4f', '#f4bb6a', '#f9e39c', '#dadfe2', '#a6b7c6', '#849eae'],
+      'ice-7': ['#edefee', '#dadfe2', '#c4ccd2', '#a6b7c6', '#849eae', '#607785', '#47525d']
+    };
+    const latimesTheme = {
+      background: '#ffffff',
+      title: {
+        anchor: 'start',
+        color: '#000000',
+        font: titleFont,
+        fontSize: headlineFontSize,
+        fontWeight: headlineFontWeight
+      },
+      arc: {
+        fill: markColor$3
+      },
+      area: {
+        fill: markColor$3
+      },
+      line: {
+        stroke: markColor$3,
+        strokeWidth: 2
+      },
+      path: {
+        stroke: markColor$3
+      },
+      rect: {
+        fill: markColor$3
+      },
+      shape: {
+        stroke: markColor$3
+      },
+      symbol: {
+        fill: markColor$3,
+        size: 30
+      },
+      axis: {
+        labelFont,
+        labelFontSize,
+        labelFontWeight,
+        titleFont,
+        titleFontSize,
+        titleFontWeight
+      },
+      axisX: {
+        labelAngle: 0,
+        labelPadding: 4,
+        tickSize: 3
+      },
+      axisY: {
+        labelBaseline: 'middle',
+        maxExtent: 45,
+        minExtent: 45,
+        tickSize: 2,
+        titleAlign: 'left',
+        titleAngle: 0,
+        titleX: -45,
+        titleY: -11
+      },
+      legend: {
+        labelFont,
+        labelFontSize,
+        symbolType: 'square',
+        titleFont,
+        titleFontSize,
+        titleFontWeight
+      },
+      range: {
+        category: colorSchemes['category-6'],
+        diverging: colorSchemes['fireandice-6'],
+        heatmap: colorSchemes['fire-7'],
+        ordinal: colorSchemes['fire-7'],
+        ramp: colorSchemes['fire-7']
+      }
+    };
+    const markColor$4 = '#ab5787';
+    const axisColor$1 = '#979797';
+    const quartzTheme = {
+      background: '#f9f9f9',
+      arc: {
+        fill: markColor$4
+      },
+      area: {
+        fill: markColor$4
+      },
+      line: {
+        stroke: markColor$4
+      },
+      path: {
+        stroke: markColor$4
+      },
+      rect: {
+        fill: markColor$4
+      },
+      shape: {
+        stroke: markColor$4
+      },
+      symbol: {
+        fill: markColor$4,
+        size: 30
+      },
+      axis: {
+        domainColor: axisColor$1,
+        domainWidth: 0.5,
+        gridWidth: 0.2,
+        labelColor: axisColor$1,
+        tickColor: axisColor$1,
+        tickWidth: 0.2,
+        titleColor: axisColor$1
+      },
+      axisBand: {
+        grid: false
+      },
+      axisX: {
+        grid: true,
+        tickSize: 10
+      },
+      axisY: {
+        domain: false,
+        grid: true,
+        tickSize: 0
+      },
+      legend: {
+        labelFontSize: 11,
+        padding: 1,
+        symbolSize: 30,
+        symbolType: 'square'
+      },
+      range: {
+        category: ['#ab5787', '#51b2e5', '#703c5c', '#168dd9', '#d190b6', '#00609f', '#d365ba', '#154866', '#666666', '#c4c4c4']
+      }
+    };
+    const markColor$5 = '#3e5c69';
+    const voxTheme = {
+      background: '#fff',
+      arc: {
+        fill: markColor$5
+      },
+      area: {
+        fill: markColor$5
+      },
+      line: {
+        stroke: markColor$5
+      },
+      path: {
+        stroke: markColor$5
+      },
+      rect: {
+        fill: markColor$5
+      },
+      shape: {
+        stroke: markColor$5
+      },
+      symbol: {
+        fill: markColor$5
+      },
+      axis: {
+        domainWidth: 0.5,
+        grid: true,
+        labelPadding: 2,
+        tickSize: 5,
+        tickWidth: 0.5,
+        titleFontWeight: 'normal'
+      },
+      axisBand: {
+        grid: false
+      },
+      axisX: {
+        gridWidth: 0.2
+      },
+      axisY: {
+        gridDash: [3],
+        gridWidth: 0.4
+      },
+      legend: {
+        labelFontSize: 11,
+        padding: 1,
+        symbolType: 'square'
+      },
+      range: {
+        category: ['#3e5c69', '#6793a6', '#182429', '#0570b0', '#3690c0', '#74a9cf', '#a6bddb', '#e2ddf2']
+      }
+    };
+    const markColor$6 = '#1696d2';
+    const axisColor$2 = '#000000';
+    const backgroundColor$1 = '#FFFFFF';
+    const font = 'Lato';
+    const labelFont$1 = 'Lato';
+    const sourceFont = 'Lato';
+    const gridColor = '#DEDDDD';
+    const titleFontSize$1 = 18;
+    const colorSchemes$1 = {
+      'main-colors': ['#1696d2', '#d2d2d2', '#000000', '#fdbf11', '#ec008b', '#55b748', '#5c5859', '#db2b27'],
+      'shades-blue': ['#CFE8F3', '#A2D4EC', '#73BFE2', '#46ABDB', '#1696D2', '#12719E', '#0A4C6A', '#062635'],
+      'shades-gray': ['#F5F5F5', '#ECECEC', '#E3E3E3', '#DCDBDB', '#D2D2D2', '#9D9D9D', '#696969', '#353535'],
+      'shades-yellow': ['#FFF2CF', '#FCE39E', '#FDD870', '#FCCB41', '#FDBF11', '#E88E2D', '#CA5800', '#843215'],
+      'shades-magenta': ['#F5CBDF', '#EB99C2', '#E46AA7', '#E54096', '#EC008B', '#AF1F6B', '#761548', '#351123'],
+      'shades-green': ['#DCEDD9', '#BCDEB4', '#98CF90', '#78C26D', '#55B748', '#408941', '#2C5C2D', '#1A2E19'],
+      'shades-black': ['#D5D5D4', '#ADABAC', '#848081', '#5C5859', '#332D2F', '#262223', '#1A1717', '#0E0C0D'],
+      'shades-red': ['#F8D5D4', '#F1AAA9', '#E9807D', '#E25552', '#DB2B27', '#A4201D', '#6E1614', '#370B0A'],
+      'one-group': ['#1696d2', '#000000'],
+      'two-groups-cat-1': ['#1696d2', '#000000'],
+      'two-groups-cat-2': ['#1696d2', '#fdbf11'],
+      'two-groups-cat-3': ['#1696d2', '#db2b27'],
+      'two-groups-seq': ['#a2d4ec', '#1696d2'],
+      'three-groups-cat': ['#1696d2', '#fdbf11', '#000000'],
+      'three-groups-seq': ['#a2d4ec', '#1696d2', '#0a4c6a'],
+      'four-groups-cat-1': ['#000000', '#d2d2d2', '#fdbf11', '#1696d2'],
+      'four-groups-cat-2': ['#1696d2', '#ec0008b', '#fdbf11', '#5c5859'],
+      'four-groups-seq': ['#cfe8f3', '#73bf42', '#1696d2', '#0a4c6a'],
+      'five-groups-cat-1': ['#1696d2', '#fdbf11', '#d2d2d2', '#ec008b', '#000000'],
+      'five-groups-cat-2': ['#1696d2', '#0a4c6a', '#d2d2d2', '#fdbf11', '#332d2f'],
+      'five-groups-seq': ['#cfe8f3', '#73bf42', '#1696d2', '#0a4c6a', '#000000'],
+      'six-groups-cat-1': ['#1696d2', '#ec008b', '#fdbf11', '#000000', '#d2d2d2', '#55b748'],
+      'six-groups-cat-2': ['#1696d2', '#d2d2d2', '#ec008b', '#fdbf11', '#332d2f', '#0a4c6a'],
+      'six-groups-seq': ['#cfe8f3', '#a2d4ec', '#73bfe2', '#46abdb', '#1696d2', '#12719e'],
+      'diverging-colors': ['#ca5800', '#fdbf11', '#fdd870', '#fff2cf', '#cfe8f3', '#73bfe2', '#1696d2', '#0a4c6a']
+    };
+    const urbanInstituteTheme = {
+      background: backgroundColor$1,
+      title: {
+        anchor: 'start',
+        fontSize: titleFontSize$1,
+        font: font
+      },
+      axisX: {
+        domain: true,
+        domainColor: axisColor$2,
+        domainWidth: 1,
+        grid: false,
+        labelFontSize: 12,
+        labelFont: labelFont$1,
+        labelAngle: 0,
+        tickColor: axisColor$2,
+        tickSize: 5,
+        titleFontSize: 12,
+        titlePadding: 10,
+        titleFont: font
+      },
+      axisY: {
+        domain: false,
+        domainWidth: 1,
+        grid: true,
+        gridColor: gridColor,
+        gridWidth: 1,
+        labelFontSize: 12,
+        labelFont: labelFont$1,
+        labelPadding: 8,
+        ticks: false,
+        titleFontSize: 12,
+        titlePadding: 10,
+        titleFont: font,
+        titleAngle: 0,
+        titleY: -10,
+        titleX: 18
+      },
+      legend: {
+        labelFontSize: 12,
+        labelFont: labelFont$1,
+        symbolSize: 100,
+        titleFontSize: 12,
+        titlePadding: 10,
+        titleFont: font,
+        orient: 'right',
+        offset: 10
+      },
+      view: {
+        stroke: 'transparent'
+      },
+      range: {
+        category: colorSchemes$1['six-groups-cat-1'],
+        diverging: colorSchemes$1['diverging-colors'],
+        heatmap: colorSchemes$1['diverging-colors'],
+        ordinal: colorSchemes$1['six-groups-seq'],
+        ramp: colorSchemes$1['shades-blue']
+      },
+      area: {
+        fill: markColor$6
+      },
+      rect: {
+        fill: markColor$6
+      },
+      line: {
+        color: markColor$6,
+        stroke: markColor$6,
+        strokeWidth: 5
+      },
+      trail: {
+        color: markColor$6,
+        stroke: markColor$6,
+        strokeWidth: 0,
+        size: 1
+      },
+      path: {
+        stroke: markColor$6,
+        strokeWidth: 0.5
+      },
+      point: {
+        filled: true
+      },
+      text: {
+        font: sourceFont,
+        color: markColor$6,
+        fontSize: 11,
+        align: 'center',
+        fontWeight: 400,
+        size: 11
+      },
+      style: {
+        bar: {
+          fill: markColor$6,
+          stroke: null
+        }
+      },
+      arc: {
+        fill: markColor$6
+      },
+      shape: {
+        stroke: markColor$6
+      },
+      symbol: {
+        fill: markColor$6,
+        size: 30
+      }
+    };
+    /**
+     * Copyright 2020 Google LLC.
+     *
+     * Use of this source code is governed by a BSD-style
+     * license that can be found in the LICENSE file or at
+     * https://developers.google.com/open-source/licenses/bsd
+     */
+
+    const markColor$7 = '#3366CC';
+    const gridColor$1 = '#ccc';
+    const defaultFont = 'Arial, sans-serif';
+    const googlechartsTheme = {
+      arc: {
+        fill: markColor$7
+      },
+      area: {
+        fill: markColor$7
+      },
+      path: {
+        stroke: markColor$7
+      },
+      rect: {
+        fill: markColor$7
+      },
+      shape: {
+        stroke: markColor$7
+      },
+      symbol: {
+        stroke: markColor$7
+      },
+      circle: {
+        fill: markColor$7
+      },
+      background: '#fff',
+      padding: {
+        top: 10,
+        right: 10,
+        bottom: 10,
+        left: 10
+      },
+      style: {
+        'guide-label': {
+          font: defaultFont,
+          fontSize: 12
+        },
+        'guide-title': {
+          font: defaultFont,
+          fontSize: 12
+        },
+        'group-title': {
+          font: defaultFont,
+          fontSize: 12
+        }
+      },
+      title: {
+        font: defaultFont,
+        fontSize: 14,
+        fontWeight: 'bold',
+        dy: -3,
+        anchor: 'start'
+      },
+      axis: {
+        gridColor: gridColor$1,
+        tickColor: gridColor$1,
+        domain: false,
+        grid: true
+      },
+      range: {
+        category: ['#4285F4', '#DB4437', '#F4B400', '#0F9D58', '#AB47BC', '#00ACC1', '#FF7043', '#9E9D24', '#5C6BC0', '#F06292', '#00796B', '#C2185B'],
+        heatmap: ['#c6dafc', '#5e97f6', '#2a56c6']
+      }
+    };
+    const version$1$1 = pkg$1.version;
+
+    var themes = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        dark: darkTheme,
+        excel: excelTheme,
+        fivethirtyeight: fiveThirtyEightTheme,
+        ggplot2: ggplot2Theme,
+        googlecharts: googlechartsTheme,
+        latimes: latimesTheme,
+        quartz: quartzTheme,
+        urbaninstitute: urbanInstituteTheme,
+        version: version$1$1,
+        vox: voxTheme
+    });
+
+    function accessor(fn, fields, name) {
+      fn.fields = fields || [];
+      fn.fname = name;
+      return fn;
+    }
+
+    function getter(path) {
+      return path.length === 1 ? get1(path[0]) : getN(path);
+    }
+
+    const get1 = field => function (obj) {
+      return obj[field];
+    };
+
+    const getN = path => {
+      const len = path.length;
+      return function (obj) {
+        for (let i = 0; i < len; ++i) {
+          obj = obj[path[i]];
+        }
+
+        return obj;
+      };
+    };
+
+    function error(message) {
+      throw Error(message);
+    }
+
+    function splitAccessPath(p) {
+      const path = [],
+            n = p.length;
+      let q = null,
+          b = 0,
+          s = '',
+          i,
+          j,
+          c;
+      p = p + '';
+
+      function push() {
+        path.push(s + p.substring(i, j));
+        s = '';
+        i = j + 1;
+      }
+
+      for (i = j = 0; j < n; ++j) {
+        c = p[j];
+
+        if (c === '\\') {
+          s += p.substring(i, j);
+          s += p.substring(++j, ++j);
+          i = j;
+        } else if (c === q) {
+          push();
+          q = null;
+          b = -1;
+        } else if (q) {
+          continue;
+        } else if (i === b && c === '"') {
+          i = j + 1;
+          q = c;
+        } else if (i === b && c === "'") {
+          i = j + 1;
+          q = c;
+        } else if (c === '.' && !b) {
+          if (j > i) {
+            push();
+          } else {
+            i = j + 1;
+          }
+        } else if (c === '[') {
+          if (j > i) push();
+          b = i = j + 1;
+        } else if (c === ']') {
+          if (!b) error('Access path missing open bracket: ' + p);
+          if (b > 0) push();
+          b = 0;
+          i = j + 1;
+        }
+      }
+
+      if (b) error('Access path missing closing bracket: ' + p);
+      if (q) error('Access path missing closing quote: ' + p);
+
+      if (j > i) {
+        j++;
+        push();
+      }
+
+      return path;
+    }
+
+    function field(field, name, opt) {
+      const path = splitAccessPath(field);
+      field = path.length === 1 ? path[0] : field;
+      return accessor((opt && opt.get || getter)(path), [field], name || field);
+    }
+
+    field('id');
+    accessor(_ => _, [], 'identity');
+    accessor(() => 0, [], 'zero');
+    accessor(() => 1, [], 'one');
+    accessor(() => true, [], 'true');
+    accessor(() => false, [], 'false');
+
+    var isArray = Array.isArray;
+
+    function isObject(_) {
+      return _ === Object(_);
+    }
+
+    function isString(_) {
+      return typeof _ === 'string';
+    }
+
+    /*! *****************************************************************************
+    Copyright (c) Microsoft Corporation.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose with or without fee is hereby granted.
+
+    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+    REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+    AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+    INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+    LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+    OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+    PERFORMANCE OF THIS SOFTWARE.
+    ***************************************************************************** */
+
+    function __rest(s, e) {
+      var t = {};
+
+      for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0) t[p] = s[p];
+
+      if (s != null && typeof Object.getOwnPropertySymbols === "function") for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
+        if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i])) t[p[i]] = s[p[i]];
+      }
+      return t;
+    }
+    /**
+     * Format the value to be shown in the tooltip.
+     *
+     * @param value The value to show in the tooltip.
+     * @param valueToHtml Function to convert a single cell value to an HTML string
+     */
+
+
+    function formatValue(value, valueToHtml, maxDepth) {
+      if (isArray(value)) {
+        return "[".concat(value.map(v => valueToHtml(isString(v) ? v : stringify(v, maxDepth))).join(', '), "]");
+      }
+
+      if (isObject(value)) {
+        let content = '';
+
+        const _a = value,
+              {
+          title,
+          image
+        } = _a,
+              rest = __rest(_a, ["title", "image"]);
+
+        if (title) {
+          content += "<h2>".concat(valueToHtml(title), "</h2>");
+        }
+
+        if (image) {
+          content += "<img src=\"".concat(valueToHtml(image), "\">");
+        }
+
+        const keys = Object.keys(rest);
+
+        if (keys.length > 0) {
+          content += '<table>';
+
+          for (const key of keys) {
+            let val = rest[key]; // ignore undefined properties
+
+            if (val === undefined) {
+              continue;
+            }
+
+            if (isObject(val)) {
+              val = stringify(val, maxDepth);
+            }
+
+            content += "<tr><td class=\"key\">".concat(valueToHtml(key), ":</td><td class=\"value\">").concat(valueToHtml(val), "</td></tr>");
+          }
+
+          content += "</table>";
+        }
+
+        return content || '{}'; // show empty object if there are no properties
+      }
+
+      return valueToHtml(value);
+    }
+
+    function replacer(maxDepth) {
+      const stack = [];
+      return function (key, value) {
+        if (typeof value !== 'object' || value === null) {
+          return value;
+        }
+
+        const pos = stack.indexOf(this) + 1;
+        stack.length = pos;
+
+        if (stack.length > maxDepth) {
+          return '[Object]';
+        }
+
+        if (stack.indexOf(value) >= 0) {
+          return '[Circular]';
+        }
+
+        stack.push(value);
+        return value;
+      };
+    }
+    /**
+     * Stringify any JS object to valid JSON
+     */
+
+
+    function stringify(obj, maxDepth) {
+      return JSON.stringify(obj, replacer(maxDepth));
+    } // generated with build-style.sh
+
+
+    var defaultStyle = "#vg-tooltip-element {\n  visibility: hidden;\n  padding: 8px;\n  position: fixed;\n  z-index: 1000;\n  font-family: sans-serif;\n  font-size: 11px;\n  border-radius: 3px;\n  box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);\n  /* The default theme is the light theme. */\n  background-color: rgba(255, 255, 255, 0.95);\n  border: 1px solid #d9d9d9;\n  color: black;\n}\n#vg-tooltip-element.visible {\n  visibility: visible;\n}\n#vg-tooltip-element h2 {\n  margin-top: 0;\n  margin-bottom: 10px;\n  font-size: 13px;\n}\n#vg-tooltip-element img {\n  max-width: 200px;\n  max-height: 200px;\n}\n#vg-tooltip-element table {\n  border-spacing: 0;\n}\n#vg-tooltip-element table tr {\n  border: none;\n}\n#vg-tooltip-element table tr td {\n  overflow: hidden;\n  text-overflow: ellipsis;\n  padding-top: 2px;\n  padding-bottom: 2px;\n}\n#vg-tooltip-element table tr td.key {\n  color: #808080;\n  max-width: 150px;\n  text-align: right;\n  padding-right: 4px;\n}\n#vg-tooltip-element table tr td.value {\n  display: block;\n  max-width: 300px;\n  max-height: 7em;\n  text-align: left;\n}\n#vg-tooltip-element.dark-theme {\n  background-color: rgba(32, 32, 32, 0.9);\n  border: 1px solid #f5f5f5;\n  color: white;\n}\n#vg-tooltip-element.dark-theme td.key {\n  color: #bfbfbf;\n}\n";
+    const EL_ID = 'vg-tooltip-element';
+    const DEFAULT_OPTIONS = {
+      /**
+       * X offset.
+       */
+      offsetX: 10,
+
+      /**
+       * Y offset.
+       */
+      offsetY: 10,
+
+      /**
+       * ID of the tooltip element.
+       */
+      id: EL_ID,
+
+      /**
+       * ID of the tooltip CSS style.
+       */
+      styleId: 'vega-tooltip-style',
+
+      /**
+       * The name of the theme. You can use the CSS class called [THEME]-theme to style the tooltips.
+       *
+       * There are two predefined themes: "light" (default) and "dark".
+       */
+      theme: 'light',
+
+      /**
+       * Do not use the default styles provided by Vega Tooltip. If you enable this option, you need to use your own styles. It is not necessary to disable the default style when using a custom theme.
+       */
+      disableDefaultStyle: false,
+
+      /**
+       * HTML sanitizer function that removes dangerous HTML to prevent XSS.
+       *
+       * This should be a function from string to string. You may replace it with a formatter such as a markdown formatter.
+       */
+      sanitize: escapeHTML,
+
+      /**
+       * The maximum recursion depth when printing objects in the tooltip.
+       */
+      maxDepth: 2,
+
+      /**
+       * A function to customize the rendered HTML of the tooltip.
+       * @param value A value string, or object of value strings keyed by field
+       * @param sanitize The `sanitize` function from `options.sanitize`
+       * @returns {string} The returned string will become the `innerHTML` of the tooltip element
+       */
+      formatTooltip: formatValue
+    };
+    /**
+     * Escape special HTML characters.
+     *
+     * @param value A value to convert to string and HTML-escape.
+     */
+
+    function escapeHTML(value) {
+      return String(value).replace(/&/g, '&amp;').replace(/</g, '&lt;');
+    }
+
+    function createDefaultStyle(id) {
+      // Just in case this id comes from a user, ensure these is no security issues
+      if (!/^[A-Za-z]+[-:.\w]*$/.test(id)) {
+        throw new Error('Invalid HTML ID');
+      }
+
+      return defaultStyle.toString().replace(EL_ID, id);
+    }
+    /**
+     * Position the tooltip
+     *
+     * @param event The mouse event.
+     * @param tooltipBox
+     * @param offsetX Horizontal offset.
+     * @param offsetY Vertical offset.
+     */
+
+
+    function calculatePosition(event, tooltipBox, offsetX, offsetY) {
+      let x = event.clientX + offsetX;
+
+      if (x + tooltipBox.width > window.innerWidth) {
+        x = +event.clientX - offsetX - tooltipBox.width;
+      }
+
+      let y = event.clientY + offsetY;
+
+      if (y + tooltipBox.height > window.innerHeight) {
+        y = +event.clientY - offsetY - tooltipBox.height;
+      }
+
+      return {
+        x,
+        y
+      };
+    }
+    /**
+     * The tooltip handler class.
+     */
+
+
+    class Handler {
+      /**
+       * Create the tooltip handler and initialize the element and style.
+       *
+       * @param options Tooltip Options
+       */
+      constructor(options) {
+        this.options = Object.assign(Object.assign({}, DEFAULT_OPTIONS), options);
+        const elementId = this.options.id;
+        this.el = null; // bind this to call
+
+        this.call = this.tooltipHandler.bind(this); // prepend a default stylesheet for tooltips to the head
+
+        if (!this.options.disableDefaultStyle && !document.getElementById(this.options.styleId)) {
+          const style = document.createElement('style');
+          style.setAttribute('id', this.options.styleId);
+          style.innerHTML = createDefaultStyle(elementId);
+          const head = document.head;
+
+          if (head.childNodes.length > 0) {
+            head.insertBefore(style, head.childNodes[0]);
+          } else {
+            head.appendChild(style);
+          }
+        }
+      }
+      /**
+       * The tooltip handler function.
+       */
+
+
+      tooltipHandler(handler, event, item, value) {
+        // console.log(handler, event, item, value);
+        var _a; // append a div element that we use as a tooltip unless it already exists
+
+
+        this.el = document.getElementById(this.options.id);
+
+        if (!this.el) {
+          this.el = document.createElement('div');
+          this.el.setAttribute('id', this.options.id);
+          this.el.classList.add('vg-tooltip');
+          const tooltipContainer = (_a = document.fullscreenElement) !== null && _a !== void 0 ? _a : document.body;
+          tooltipContainer.appendChild(this.el);
+        } // hide tooltip for null, undefined, or empty string values
+
+
+        if (value == null || value === '') {
+          this.el.classList.remove('visible', "".concat(this.options.theme, "-theme"));
+          return;
+        } // set the tooltip content
+
+
+        this.el.innerHTML = this.options.formatTooltip(value, this.options.sanitize, this.options.maxDepth); // make the tooltip visible
+
+        this.el.classList.add('visible', "".concat(this.options.theme, "-theme"));
+        const {
+          x,
+          y
+        } = calculatePosition(event, this.el.getBoundingClientRect(), this.options.offsetX, this.options.offsetY);
+        this.el.setAttribute('style', "top: ".concat(y, "px; left: ").concat(x, "px"));
+      }
+
+    }
+
+    /**
+     * Open editor url in a new window, and pass a message.
+     */
+    function post (window, url, data) {
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      const editor = window.open(url);
+      const wait = 10000;
+      const step = 250;
+      const {
+        origin
+      } = new URL(url); // eslint-disable-next-line no-bitwise
+
+      let count = ~~(wait / step);
+
+      function listen(evt) {
+        if (evt.source === editor) {
+          count = 0;
+          window.removeEventListener('message', listen, false);
+        }
+      }
+
+      window.addEventListener('message', listen, false); // send message
+      // periodically resend until ack received or timeout
+
+      function send() {
+        if (count <= 0) {
+          return;
+        }
+
+        editor.postMessage(data, origin);
+        setTimeout(send, step);
+        count -= 1;
+      }
+
+      setTimeout(send, step);
+    }
+
+    // generated with build-style.sh
+    var embedStyle = ".vega-embed {\n  position: relative;\n  display: inline-block;\n  box-sizing: border-box;\n}\n.vega-embed.has-actions {\n  padding-right: 38px;\n}\n.vega-embed details:not([open]) > :not(summary) {\n  display: none !important;\n}\n.vega-embed summary {\n  list-style: none;\n  position: absolute;\n  top: 0;\n  right: 0;\n  padding: 6px;\n  z-index: 1000;\n  background: white;\n  box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.1);\n  color: #1b1e23;\n  border: 1px solid #aaa;\n  border-radius: 999px;\n  opacity: 0.2;\n  transition: opacity 0.4s ease-in;\n  cursor: pointer;\n  line-height: 0px;\n}\n.vega-embed summary::-webkit-details-marker {\n  display: none;\n}\n.vega-embed summary:active {\n  box-shadow: #aaa 0px 0px 0px 1px inset;\n}\n.vega-embed summary svg {\n  width: 14px;\n  height: 14px;\n}\n.vega-embed details[open] summary {\n  opacity: 0.7;\n}\n.vega-embed:hover summary, .vega-embed:focus-within summary {\n  opacity: 1 !important;\n  transition: opacity 0.2s ease;\n}\n.vega-embed .vega-actions {\n  position: absolute;\n  z-index: 1001;\n  top: 35px;\n  right: -9px;\n  display: flex;\n  flex-direction: column;\n  padding-bottom: 8px;\n  padding-top: 8px;\n  border-radius: 4px;\n  box-shadow: 0 2px 8px 0 rgba(0, 0, 0, 0.2);\n  border: 1px solid #d9d9d9;\n  background: white;\n  animation-duration: 0.15s;\n  animation-name: scale-in;\n  animation-timing-function: cubic-bezier(0.2, 0, 0.13, 1.5);\n  text-align: left;\n}\n.vega-embed .vega-actions a {\n  padding: 8px 16px;\n  font-family: sans-serif;\n  font-size: 14px;\n  font-weight: 600;\n  white-space: nowrap;\n  color: #434a56;\n  text-decoration: none;\n}\n.vega-embed .vega-actions a:hover, .vega-embed .vega-actions a:focus {\n  background-color: #f7f7f9;\n  color: black;\n}\n.vega-embed .vega-actions::before, .vega-embed .vega-actions::after {\n  content: \"\";\n  display: inline-block;\n  position: absolute;\n}\n.vega-embed .vega-actions::before {\n  left: auto;\n  right: 14px;\n  top: -16px;\n  border: 8px solid #0000;\n  border-bottom-color: #d9d9d9;\n}\n.vega-embed .vega-actions::after {\n  left: auto;\n  right: 15px;\n  top: -14px;\n  border: 7px solid #0000;\n  border-bottom-color: #fff;\n}\n.vega-embed .chart-wrapper.fit-x {\n  width: 100%;\n}\n.vega-embed .chart-wrapper.fit-y {\n  height: 100%;\n}\n\n.vega-embed-wrapper {\n  max-width: 100%;\n  overflow: auto;\n  padding-right: 14px;\n}\n\n@keyframes scale-in {\n  from {\n    opacity: 0;\n    transform: scale(0.6);\n  }\n  to {\n    opacity: 1;\n    transform: scale(1);\n  }\n}\n";
+
+    if (!String.prototype.startsWith) {
+      // eslint-disable-next-line no-extend-native,func-names
+      String.prototype.startsWith = function (search, pos) {
+        return this.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;
+      };
+    }
+
+    function isURL(s) {
+      return s.startsWith('http://') || s.startsWith('https://') || s.startsWith('//');
+    }
+    function mergeDeep(dest) {
+      for (var _len = arguments.length, src = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+        src[_key - 1] = arguments[_key];
+      }
+
+      for (const s of src) {
+        deepMerge_(dest, s);
+      }
+
+      return dest;
+    }
+
+    function deepMerge_(dest, src) {
+      for (const property of Object.keys(src)) {
+        vegaImport.writeConfig(dest, property, src[property], true);
+      }
+    }
+
+    var name = "vega-embed";
+    var version$1 = "6.20.8";
+    var description = "Publish Vega visualizations as embedded web components.";
+    var keywords = ["vega", "data", "visualization", "component", "embed"];
+    var repository = {
+      type: "git",
+      url: "http://github.com/vega/vega-embed.git"
+    };
+    var author = {
+      name: "UW Interactive Data Lab",
+      url: "http://idl.cs.washington.edu"
+    };
+    var contributors = [{
+      name: "Dominik Moritz",
+      url: "https://www.domoritz.de"
+    }];
+    var bugs = {
+      url: "https://github.com/vega/vega-embed/issues"
+    };
+    var homepage = "https://github.com/vega/vega-embed#readme";
+    var license = "BSD-3-Clause";
+    var main = "build/vega-embed.js";
+    var module = "build/vega-embed.module.js";
+    var unpkg = "build/vega-embed.min.js";
+    var jsdelivr = "build/vega-embed.min.js";
+    var types = "build/vega-embed.module.d.ts";
+    var files = ["src", "build", "build-es5", "patches"];
+    var devDependencies = {
+      "@auto-it/conventional-commits": "^10.32.6",
+      "@auto-it/first-time-contributor": "^10.32.6",
+      "@babel/plugin-transform-runtime": "^7.17.0",
+      "@rollup/plugin-commonjs": "21.0.1",
+      "@rollup/plugin-json": "^4.1.0",
+      "@rollup/plugin-node-resolve": "^13.1.3",
+      "@types/semver": "^7.3.9",
+      auto: "^10.32.6",
+      "browser-sync": "^2.27.7",
+      concurrently: "^7.0.0",
+      "del-cli": "^4.0.1",
+      "jest-canvas-mock": "^2.3.1",
+      "patch-package": "^6.4.7",
+      "postinstall-postinstall": "^2.1.0",
+      rollup: "2.67.2",
+      "rollup-plugin-bundle-size": "^1.0.3",
+      "rollup-plugin-terser": "^7.0.2",
+      "rollup-plugin-ts": "^2.0.5",
+      sass: "^1.49.7",
+      typescript: "^4.5.5",
+      vega: "^5.21.0",
+      "vega-lite": "^5.0.0",
+      "vega-lite-dev-config": "^0.20.0"
+    };
+    var peerDependencies = {
+      vega: "^5.21.0",
+      "vega-lite": "*"
+    };
+    var dependencies = {
+      "fast-json-patch": "^3.1.0",
+      "json-stringify-pretty-compact": "^3.0.0",
+      semver: "^7.3.5",
+      tslib: "^2.3.1",
+      "vega-interpreter": "^1.0.4",
+      "vega-schema-url-parser": "^2.2.0",
+      "vega-themes": "^2.10.0",
+      "vega-tooltip": "^0.28.0"
+    };
+    var bundledDependencies = ["yallist"];
+    var scripts = {
+      prebuild: "yarn clean && yarn build:style",
+      build: "rollup -c",
+      "build:style": "./build-style.sh",
+      clean: "del-cli build build-es5 src/style.ts",
+      prepublishOnly: "yarn clean && yarn build",
+      preversion: "yarn lint && yarn test",
+      serve: "browser-sync start --directory -s -f build *.html",
+      start: "yarn build && concurrently --kill-others -n Server,Rollup 'yarn serve' 'rollup -c -w'",
+      pretest: "yarn build:style",
+      test: "beemo jest --stdio stream",
+      "test:inspect": "node --inspect-brk ./node_modules/.bin/jest --runInBand",
+      prepare: "beemo create-config && npx patch-package",
+      prettierbase: "beemo prettier '*.{css,scss,html}'",
+      eslintbase: "beemo eslint .",
+      format: "yarn eslintbase --fix && yarn prettierbase --write",
+      lint: "yarn eslintbase && yarn prettierbase --check",
+      release: "yarn build && auto shipit"
+    };
+    var pkg = {
+      name: name,
+      version: version$1,
+      description: description,
+      keywords: keywords,
+      repository: repository,
+      author: author,
+      contributors: contributors,
+      bugs: bugs,
+      homepage: homepage,
+      license: license,
+      main: main,
+      module: module,
+      unpkg: unpkg,
+      jsdelivr: jsdelivr,
+      types: types,
+      files: files,
+      devDependencies: devDependencies,
+      peerDependencies: peerDependencies,
+      dependencies: dependencies,
+      bundledDependencies: bundledDependencies,
+      scripts: scripts
+    };
+
+    var _w$vl;
+    const version = pkg.version;
+    const vega = vegaImport__namespace;
+    let vegaLite = vegaLiteImport__namespace; // For backwards compatibility with Vega-Lite before v4.
+
+    const w = typeof window !== 'undefined' ? window : undefined;
+
+    if (vegaLite === undefined && w !== null && w !== void 0 && (_w$vl = w.vl) !== null && _w$vl !== void 0 && _w$vl.compile) {
+      vegaLite = w.vl;
+    }
+
+    const DEFAULT_ACTIONS = {
+      export: {
+        svg: true,
+        png: true
+      },
+      source: true,
+      compiled: true,
+      editor: true
+    };
+    const I18N = {
+      CLICK_TO_VIEW_ACTIONS: 'Click to view actions',
+      COMPILED_ACTION: 'View Compiled Vega',
+      EDITOR_ACTION: 'Open in Vega Editor',
+      PNG_ACTION: 'Save as PNG',
+      SOURCE_ACTION: 'View Source',
+      SVG_ACTION: 'Save as SVG'
+    };
+    const NAMES = {
+      vega: 'Vega',
+      'vega-lite': 'Vega-Lite'
+    };
+    const VERSION = {
+      vega: vega.version,
+      'vega-lite': vegaLite ? vegaLite.version : 'not available'
+    };
+    const PREPROCESSOR = {
+      vega: vgSpec => vgSpec,
+      'vega-lite': (vlSpec, config) => vegaLite.compile(vlSpec, {
+        config: config
+      }).spec
+    };
+    const SVG_CIRCLES = "\n<svg viewBox=\"0 0 16 16\" fill=\"currentColor\" stroke=\"none\" stroke-width=\"1\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\n  <circle r=\"2\" cy=\"8\" cx=\"2\"></circle>\n  <circle r=\"2\" cy=\"8\" cx=\"8\"></circle>\n  <circle r=\"2\" cy=\"8\" cx=\"14\"></circle>\n</svg>";
+    const CHART_WRAPPER_CLASS = 'chart-wrapper';
+
+    function isTooltipHandler(h) {
+      return typeof h === 'function';
+    }
+
+    function viewSource(source, sourceHeader, sourceFooter, mode) {
+      const header = "<html><head>".concat(sourceHeader, "</head><body><pre><code class=\"json\">");
+      const footer = "</code></pre>".concat(sourceFooter, "</body></html>"); // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+
+      const win = window.open('');
+      win.document.write(header + source + footer);
+      win.document.title = "".concat(NAMES[mode], " JSON Source");
+    }
+    /**
+     * Try to guess the type of spec.
+     *
+     * @param spec Vega or Vega-Lite spec.
+     */
+
+
+    function guessMode(spec, providedMode) {
+      // Decide mode
+      if (spec.$schema) {
+        const parsed = e(spec.$schema);
+
+        if (providedMode && providedMode !== parsed.library) {
+          var _NAMES$providedMode;
+
+          console.warn("The given visualization spec is written in ".concat(NAMES[parsed.library], ", but mode argument sets ").concat((_NAMES$providedMode = NAMES[providedMode]) !== null && _NAMES$providedMode !== void 0 ? _NAMES$providedMode : providedMode, "."));
+        }
+
+        const mode = parsed.library;
+
+        if (!satisfies_1(VERSION[mode], "^".concat(parsed.version.slice(1)))) {
+          console.warn("The input spec uses ".concat(NAMES[mode], " ").concat(parsed.version, ", but the current version of ").concat(NAMES[mode], " is v").concat(VERSION[mode], "."));
+        }
+
+        return mode;
+      } // try to guess from the provided spec
+
+
+      if ('mark' in spec || 'encoding' in spec || 'layer' in spec || 'hconcat' in spec || 'vconcat' in spec || 'facet' in spec || 'repeat' in spec) {
+        return 'vega-lite';
+      }
+
+      if ('marks' in spec || 'signals' in spec || 'scales' in spec || 'axes' in spec) {
+        return 'vega';
+      }
+
+      return providedMode !== null && providedMode !== void 0 ? providedMode : 'vega';
+    }
+
+    function isLoader(o) {
+      return !!(o && 'load' in o);
+    }
+
+    function createLoader(opts) {
+      return isLoader(opts) ? opts : vega.loader(opts);
+    }
+
+    function embedOptionsFromUsermeta(parsedSpec) {
+      var _parsedSpec$usermeta$, _parsedSpec$usermeta;
+
+      const opts = (_parsedSpec$usermeta$ = (_parsedSpec$usermeta = parsedSpec.usermeta) === null || _parsedSpec$usermeta === void 0 ? void 0 : _parsedSpec$usermeta.embedOptions) !== null && _parsedSpec$usermeta$ !== void 0 ? _parsedSpec$usermeta$ : {};
+
+      if (vegaImport.isString(opts.defaultStyle)) {
+        // we don't allow styles set via usermeta since it would allow injection of logic (we set the style via innerHTML)
+        opts.defaultStyle = false;
+      }
+
+      return opts;
+    }
+    /**
+     * Embed a Vega visualization component in a web page. This function returns a promise.
+     *
+     * @param el        DOM element in which to place component (DOM node or CSS selector).
+     * @param spec      String : A URL string from which to load the Vega specification.
+     *                  Object : The Vega/Vega-Lite specification as a parsed JSON object.
+     * @param opts       A JavaScript object containing options for embedding.
+     */
+
+
+    async function embed(el, spec) {
+      var _parsedOpts$config, _usermetaOpts$config;
+
+      let opts = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+      let parsedSpec;
+      let loader;
+
+      if (vegaImport.isString(spec)) {
+        loader = createLoader(opts.loader);
+        parsedSpec = JSON.parse(await loader.load(spec));
+      } else {
+        parsedSpec = spec;
+      }
+
+      const loadedEmbedOptions = embedOptionsFromUsermeta(parsedSpec);
+      const usermetaLoader = loadedEmbedOptions.loader; // either create the loader for the first time or create a new loader if the spec has new loader options
+
+      if (!loader || usermetaLoader) {
+        var _opts$loader;
+
+        loader = createLoader((_opts$loader = opts.loader) !== null && _opts$loader !== void 0 ? _opts$loader : usermetaLoader);
+      }
+
+      const usermetaOpts = await loadOpts(loadedEmbedOptions, loader);
+      const parsedOpts = await loadOpts(opts, loader);
+      const mergedOpts = { ...mergeDeep(parsedOpts, usermetaOpts),
+        config: vegaImport.mergeConfig((_parsedOpts$config = parsedOpts.config) !== null && _parsedOpts$config !== void 0 ? _parsedOpts$config : {}, (_usermetaOpts$config = usermetaOpts.config) !== null && _usermetaOpts$config !== void 0 ? _usermetaOpts$config : {})
+      };
+      return await _embed(el, parsedSpec, mergedOpts, loader);
+    }
+
+    async function loadOpts(opt, loader) {
+      var _opt$config;
+
+      const config = vegaImport.isString(opt.config) ? JSON.parse(await loader.load(opt.config)) : (_opt$config = opt.config) !== null && _opt$config !== void 0 ? _opt$config : {};
+      const patch = vegaImport.isString(opt.patch) ? JSON.parse(await loader.load(opt.patch)) : opt.patch;
+      return { ...opt,
+        ...(patch ? {
+          patch
+        } : {}),
+        ...(config ? {
+          config
+        } : {})
+      };
+    }
+
+    function getRoot(el) {
+      var _document$head;
+
+      const possibleRoot = el.getRootNode ? el.getRootNode() : document;
+      return possibleRoot instanceof ShadowRoot ? {
+        root: possibleRoot,
+        rootContainer: possibleRoot
+      } : {
+        root: document,
+        rootContainer: (_document$head = document.head) !== null && _document$head !== void 0 ? _document$head : document.body
+      };
+    }
+
+    async function _embed(el, spec) {
+      var _opts$config, _opts$actions, _opts$renderer, _opts$logLevel, _opts$downloadFileNam, _ref, _vega$expressionInter;
+
+      let opts = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+      let loader = arguments.length > 3 ? arguments[3] : undefined;
+      const config = opts.theme ? vegaImport.mergeConfig(themes[opts.theme], (_opts$config = opts.config) !== null && _opts$config !== void 0 ? _opts$config : {}) : opts.config;
+      const actions = vegaImport.isBoolean(opts.actions) ? opts.actions : mergeDeep({}, DEFAULT_ACTIONS, (_opts$actions = opts.actions) !== null && _opts$actions !== void 0 ? _opts$actions : {});
+      const i18n = { ...I18N,
+        ...opts.i18n
+      };
+      const renderer = (_opts$renderer = opts.renderer) !== null && _opts$renderer !== void 0 ? _opts$renderer : 'canvas';
+      const logLevel = (_opts$logLevel = opts.logLevel) !== null && _opts$logLevel !== void 0 ? _opts$logLevel : vega.Warn;
+      const downloadFileName = (_opts$downloadFileNam = opts.downloadFileName) !== null && _opts$downloadFileNam !== void 0 ? _opts$downloadFileNam : 'visualization';
+      const element = typeof el === 'string' ? document.querySelector(el) : el;
+
+      if (!element) {
+        throw new Error("".concat(el, " does not exist"));
+      }
+
+      if (opts.defaultStyle !== false) {
+        const ID = 'vega-embed-style';
+        const {
+          root,
+          rootContainer
+        } = getRoot(element);
+
+        if (!root.getElementById(ID)) {
+          const style = document.createElement('style');
+          style.id = ID;
+          style.innerHTML = opts.defaultStyle === undefined || opts.defaultStyle === true ? (embedStyle ).toString() : opts.defaultStyle;
+          rootContainer.appendChild(style);
+        }
+      }
+
+      const mode = guessMode(spec, opts.mode);
+      let vgSpec = PREPROCESSOR[mode](spec, config);
+
+      if (mode === 'vega-lite') {
+        if (vgSpec.$schema) {
+          const parsed = e(vgSpec.$schema);
+
+          if (!satisfies_1(VERSION.vega, "^".concat(parsed.version.slice(1)))) {
+            console.warn("The compiled spec uses Vega ".concat(parsed.version, ", but current version is v").concat(VERSION.vega, "."));
+          }
+        }
+      }
+
+      element.classList.add('vega-embed');
+
+      if (actions) {
+        element.classList.add('has-actions');
+      }
+
+      element.innerHTML = ''; // clear container
+
+      let container = element;
+
+      if (actions) {
+        const chartWrapper = document.createElement('div');
+        chartWrapper.classList.add(CHART_WRAPPER_CLASS);
+        element.appendChild(chartWrapper);
+        container = chartWrapper;
+      }
+
+      const patch = opts.patch;
+
+      if (patch) {
+        vgSpec = patch instanceof Function ? patch(vgSpec) : applyPatch(vgSpec, patch, true, false).newDocument;
+      } // Set locale. Note that this is a global setting.
+
+
+      if (opts.formatLocale) {
+        vega.formatLocale(opts.formatLocale);
+      }
+
+      if (opts.timeFormatLocale) {
+        vega.timeFormatLocale(opts.timeFormatLocale);
+      }
+
+      const {
+        ast
+      } = opts; // Do not apply the config to Vega when we have already applied it to Vega-Lite.
+      // This call may throw an Error if parsing fails.
+
+      const runtime = vega.parse(vgSpec, mode === 'vega-lite' ? {} : config, {
+        ast
+      });
+      const view = new (opts.viewClass || vega.View)(runtime, {
+        loader,
+        logLevel,
+        renderer,
+        ...(ast ? {
+          expr: (_ref = (_vega$expressionInter = vega.expressionInterpreter) !== null && _vega$expressionInter !== void 0 ? _vega$expressionInter : opts.expr) !== null && _ref !== void 0 ? _ref : expression
+        } : {})
+      });
+      view.addSignalListener('autosize', (_, autosize) => {
+        const {
+          type
+        } = autosize;
+
+        if (type == 'fit-x') {
+          container.classList.add('fit-x');
+          container.classList.remove('fit-y');
+        } else if (type == 'fit-y') {
+          container.classList.remove('fit-x');
+          container.classList.add('fit-y');
+        } else if (type == 'fit') {
+          container.classList.add('fit-x', 'fit-y');
+        } else {
+          container.classList.remove('fit-x', 'fit-y');
+        }
+      });
+
+      if (opts.tooltip !== false) {
+        const handler = isTooltipHandler(opts.tooltip) ? opts.tooltip : // user provided boolean true or tooltip options
+        new Handler(opts.tooltip === true ? {} : opts.tooltip).call;
+        view.tooltip(handler);
+      }
+
+      let {
+        hover
+      } = opts;
+
+      if (hover === undefined) {
+        hover = mode === 'vega';
+      }
+
+      if (hover) {
+        const {
+          hoverSet,
+          updateSet
+        } = typeof hover === 'boolean' ? {} : hover;
+        view.hover(hoverSet, updateSet);
+      }
+
+      if (opts) {
+        if (opts.width != null) {
+          view.width(opts.width);
+        }
+
+        if (opts.height != null) {
+          view.height(opts.height);
+        }
+
+        if (opts.padding != null) {
+          view.padding(opts.padding);
+        }
+      }
+
+      await view.initialize(container, opts.bind).runAsync();
+      let documentClickHandler;
+
+      if (actions !== false) {
+        let wrapper = element;
+
+        if (opts.defaultStyle !== false) {
+          const details = document.createElement('details');
+          details.title = i18n.CLICK_TO_VIEW_ACTIONS;
+          element.append(details);
+          wrapper = details;
+          const summary = document.createElement('summary');
+          summary.innerHTML = SVG_CIRCLES;
+          details.append(summary);
+
+          documentClickHandler = ev => {
+            if (!details.contains(ev.target)) {
+              details.removeAttribute('open');
+            }
+          };
+
+          document.addEventListener('click', documentClickHandler);
+        }
+
+        const ctrl = document.createElement('div');
+        wrapper.append(ctrl);
+        ctrl.classList.add('vega-actions'); // add 'Export' action
+
+        if (actions === true || actions.export !== false) {
+          for (const ext of ['svg', 'png']) {
+            if (actions === true || actions.export === true || actions.export[ext]) {
+              const i18nExportAction = i18n["".concat(ext.toUpperCase(), "_ACTION")];
+              const exportLink = document.createElement('a');
+              exportLink.text = i18nExportAction;
+              exportLink.href = '#';
+              exportLink.target = '_blank';
+              exportLink.download = "".concat(downloadFileName, ".").concat(ext); // add link on mousedown so that it's correct when the click happens
+
+              exportLink.addEventListener('mousedown', async function (e) {
+                e.preventDefault();
+                const url = await view.toImageURL(ext, opts.scaleFactor);
+                this.href = url;
+              });
+              ctrl.append(exportLink);
+            }
+          }
+        } // add 'View Source' action
+
+
+        if (actions === true || actions.source !== false) {
+          const viewSourceLink = document.createElement('a');
+          viewSourceLink.text = i18n.SOURCE_ACTION;
+          viewSourceLink.href = '#';
+          viewSourceLink.addEventListener('click', function (e) {
+            var _opts$sourceHeader, _opts$sourceFooter;
+
+            viewSource(jsonStringifyPrettyCompact(spec), (_opts$sourceHeader = opts.sourceHeader) !== null && _opts$sourceHeader !== void 0 ? _opts$sourceHeader : '', (_opts$sourceFooter = opts.sourceFooter) !== null && _opts$sourceFooter !== void 0 ? _opts$sourceFooter : '', mode);
+            e.preventDefault();
+          });
+          ctrl.append(viewSourceLink);
+        } // add 'View Compiled' action
+
+
+        if (mode === 'vega-lite' && (actions === true || actions.compiled !== false)) {
+          const compileLink = document.createElement('a');
+          compileLink.text = i18n.COMPILED_ACTION;
+          compileLink.href = '#';
+          compileLink.addEventListener('click', function (e) {
+            var _opts$sourceHeader2, _opts$sourceFooter2;
+
+            viewSource(jsonStringifyPrettyCompact(vgSpec), (_opts$sourceHeader2 = opts.sourceHeader) !== null && _opts$sourceHeader2 !== void 0 ? _opts$sourceHeader2 : '', (_opts$sourceFooter2 = opts.sourceFooter) !== null && _opts$sourceFooter2 !== void 0 ? _opts$sourceFooter2 : '', 'vega');
+            e.preventDefault();
+          });
+          ctrl.append(compileLink);
+        } // add 'Open in Vega Editor' action
+
+
+        if (actions === true || actions.editor !== false) {
+          var _opts$editorUrl;
+
+          const editorUrl = (_opts$editorUrl = opts.editorUrl) !== null && _opts$editorUrl !== void 0 ? _opts$editorUrl : 'https://vega.github.io/editor/';
+          const editorLink = document.createElement('a');
+          editorLink.text = i18n.EDITOR_ACTION;
+          editorLink.href = '#';
+          editorLink.addEventListener('click', function (e) {
+            post(window, editorUrl, {
+              config: config,
+              mode,
+              renderer,
+              spec: jsonStringifyPrettyCompact(spec)
+            });
+            e.preventDefault();
+          });
+          ctrl.append(editorLink);
+        }
+      }
+
+      function finalize() {
+        if (documentClickHandler) {
+          document.removeEventListener('click', documentClickHandler);
+        }
+
+        view.finalize();
+      }
+
+      return {
+        view,
+        spec,
+        vgSpec,
+        finalize,
+        embedOptions: opts
+      };
+    }
+
+    /**
+     * Create a promise to an HTML Div element with an embedded Vega-Lite or Vega visualization.
+     * The element has a value property with the view. By default all actions except for the editor action are disabled.
+     *
+     * The main use case is in [Observable](https://observablehq.com/).
+     */
+
+    async function container (spec) {
+      var _opt$actions;
+
+      let opt = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+      const wrapper = document.createElement('div');
+      wrapper.classList.add('vega-embed-wrapper');
+      const div = document.createElement('div');
+      wrapper.appendChild(div);
+      const actions = opt.actions === true || opt.actions === false ? opt.actions : {
+        export: true,
+        source: false,
+        compiled: true,
+        editor: true,
+        ...((_opt$actions = opt.actions) !== null && _opt$actions !== void 0 ? _opt$actions : {})
+      };
+      const result = await embed(div, spec, {
+        actions,
+        ...(opt !== null && opt !== void 0 ? opt : {})
+      });
+      wrapper.value = result.view;
+      return wrapper;
+    }
+
+    /**
+     * Returns true if the object is an HTML element.
+     */
+
+    function isElement(obj) {
+      return obj instanceof HTMLElement;
+    }
+
+    const wrapper = function () {
+      if (arguments.length > 1 && (vegaImport.isString(arguments.length <= 0 ? undefined : arguments[0]) && !isURL(arguments.length <= 0 ? undefined : arguments[0]) || isElement(arguments.length <= 0 ? undefined : arguments[0]) || arguments.length === 3)) {
+        return embed(arguments.length <= 0 ? undefined : arguments[0], arguments.length <= 1 ? undefined : arguments[1], arguments.length <= 2 ? undefined : arguments[2]);
+      }
+
+      return container(arguments.length <= 0 ? undefined : arguments[0], arguments.length <= 1 ? undefined : arguments[1]);
+    };
+
+    wrapper.vegaLite = vegaLite;
+    wrapper.vl = vegaLite; // backwards compatibility
+
+    wrapper.container = container;
+    wrapper.embed = embed;
+    wrapper.vega = vega;
+    wrapper.default = embed;
+    wrapper.version = version;
+
+    return wrapper;
+
+}));
+//# sourceMappingURL=vega-embed.js.map
+</script>
+
+    <script id="workflow-desc">
+    var workflow_desc = "<p>This is the workflow description. Test reference <a class=\"reference external\" href=\"javascript:app.showResultInfo('fig1.svg')\">fig1.svg</a>. And a reference to a category <a class=\"reference external\" href=\"javascript:app.showCategory('Step%202')\">Step 2</a>.</p>\n";
+    </script>
+
+    <script id="results">
+    var results = {"fig1.svg": {"name": "fig1.svg", "filename": "fig1.svg", "labels": {"type": "figure", "num": "1"}, "size": "0.028 MB", "caption": "<p>This is a caption with a <a class=\"reference external\" href=\"https://www.google.com\">link</a>.</p>\n", "mime_type": "image/svg+xml", "job_properties": {"rule": "a", "wildcards": "", "params": ""}, "data_uri": "data:image/svg+xml;charset=utf8;filename=fig1.svg;base64,<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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"}, "testdir/1.txt": {"name": "1.txt", "filename": "1.txt", "labels": null, "size": "2e-06 MB", "caption": "<p>Files obtained from a directory. This file starts with 1. This value has been dynamically inferred from the given pattern.</p>\n", "mime_type": "text/plain", "job_properties": {"rule": "e", "wildcards": "name=1", "params": ""}, "data_uri": "data:text/plain;charset=utf8;filename=1.txt;base64,MQo="}, "testdir/2.txt": {"name": "2.txt", "filename": "2.txt", "labels": null, "size": "2e-06 MB", "caption": "<p>Files obtained from a directory. This file starts with 2. This value has been dynamically inferred from the given pattern.</p>\n", "mime_type": "text/plain", "job_properties": {"rule": "e", "wildcards": "name=2", "params": ""}, "data_uri": "data:text/plain;charset=utf8;filename=2.txt;base64,Mgo="}, "testdir/3.txt": {"name": "3.txt", "filename": "3.txt", "labels": null, "size": "2e-06 MB", "caption": "<p>Files obtained from a directory. This file starts with 3. This value has been dynamically inferred from the given pattern.</p>\n", "mime_type": "text/plain", "job_properties": {"rule": "e", "wildcards": "name=3", "params": ""}, "data_uri": "data:text/plain;charset=utf8;filename=3.txt;base64,Mwo="}, "lorem-ipsum.pdf": {"name": "lorem-ipsum.pdf", "filename": "lorem-ipsum.pdf", "labels": null, "size": "0.0069 MB", "caption": "<p>This is a caption with a <a class=\"reference external\" href=\"https://www.google.com\">link</a>.</p>\n", "mime_type": "application/pdf", "job_properties": {"rule": "c", "wildcards": "i=0", "params": ""}, "data_uri": 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"}, "test.csv": {"name": "test.csv", "filename": "test.csv", "labels": null, "size": "0.11 MB", "caption": "<p>An example table.</p>\n", "mime_type": "text/csv", "job_properties": {"rule": "d", "wildcards": "", "params": ""}, "data_uri": "data:text/csv;charset=utf8;filename=test.csv;base64,street,city,zip,state,beds,baths,sq__ft,type,sale_date,price,latitude,longitude3526 HIGH ST,SACRAMENTO,95838,CA,2,1,836,Residential,Wed May 21 00:00:00 EDT 2008,59222,38.631913,-121.43487951 OMAHA CT,SACRAMENTO,95823,CA,3,1,1167,Residential,Wed May 21 00:00:00 EDT 2008,68212,38.478902,-121.4310282796 BRANCH ST,SACRAMENTO,95815,CA,2,1,796,Residential,Wed May 21 00:00:00 EDT 2008,68880,38.618305,-121.4438392805 JANETTE WAY,SACRAMENTO,95815,CA,2,1,852,Residential,Wed May 21 00:00:00 EDT 2008,69307,38.616835,-121.4391466001 MCMAHON DR,SACRAMENTO,95824,CA,2,1,797,Residential,Wed May 21 00:00:00 EDT 2008,81900,38.51947,-121.4357685828 PEPPERMILL CT,SACRAMENTO,95841,CA,3,1,1122,Condo,Wed May 21 00:00:00 EDT 2008,89921,38.662595,-121.3278136048 OGDEN NASH WAY,SACRAMENTO,95842,CA,3,2,1104,Residential,Wed May 21 00:00:00 EDT 2008,90895,38.681659,-121.3517052561 19TH AVE,SACRAMENTO,95820,CA,3,1,1177,Residential,Wed May 21 00:00:00 EDT 2008,91002,38.535092,-121.48136711150 TRINITY RIVER DR Unit 114,RANCHO CORDOVA,95670,CA,2,2,941,Condo,Wed May 21 00:00:00 EDT 2008,94905,38.621188,-121.2705557325 10TH ST,RIO LINDA,95673,CA,3,2,1146,Residential,Wed May 21 00:00:00 EDT 2008,98937,38.700909,-121.442979645 MORRISON AVE,SACRAMENTO,95838,CA,3,2,909,Residential,Wed May 21 00:00:00 EDT 2008,100309,38.637663,-121.451524085 FAWN CIR,SACRAMENTO,95823,CA,3,2,1289,Residential,Wed May 21 00:00:00 EDT 2008,106250,38.470746,-121.4589182930 LA ROSA RD,SACRAMENTO,95815,CA,1,1,871,Residential,Wed May 21 00:00:00 EDT 2008,106852,38.618698,-121.4358332113 KIRK WAY,SACRAMENTO,95822,CA,3,1,1020,Residential,Wed May 21 00:00:00 EDT 2008,107502,38.482215,-121.4926034533 LOCH HAVEN WAY,SACRAMENTO,95842,CA,2,2,1022,Residential,Wed May 21 00:00:00 EDT 2008,108750,38.672914,-121.359347340 HAMDEN PL,SACRAMENTO,95842,CA,2,2,1134,Condo,Wed May 21 00:00:00 EDT 2008,110700,38.700051,-121.3512786715 6TH ST,RIO LINDA,95673,CA,2,1,844,Residential,Wed May 21 00:00:00 EDT 2008,113263,38.689591,-121.4522396236 LONGFORD DR Unit 1,CITRUS HEIGHTS,95621,CA,2,1,795,Condo,Wed May 21 00:00:00 EDT 2008,116250,38.679776,-121.314089250 PERALTA AVE,SACRAMENTO,95833,CA,2,1,588,Residential,Wed May 21 00:00:00 EDT 2008,120000,38.612099,-121.469095113 LEEWILL AVE,RIO LINDA,95673,CA,3,2,1356,Residential,Wed May 21 00:00:00 EDT 2008,121630,38.689999,-121.463226118 STONEHAND AVE,CITRUS HEIGHTS,95621,CA,3,2,1118,Residential,Wed May 21 00:00:00 EDT 2008,122000,38.707851,-121.3207074882 BANDALIN WAY,SACRAMENTO,95823,CA,4,2,1329,Residential,Wed May 21 00:00:00 EDT 2008,122682,38.468173,-121.4440717511 OAKVALE CT,NORTH HIGHLANDS,95660,CA,4,2,1240,Residential,Wed May 21 00:00:00 EDT 2008,123000,38.702792,-121.382219 PASTURE CT,SACRAMENTO,95834,CA,3,2,1601,Residential,Wed May 21 00:00:00 EDT 2008,124100,38.628631,-121.4880973729 BAINBRIDGE DR,NORTH HIGHLANDS,95660,CA,3,2,901,Residential,Wed May 21 00:00:00 EDT 2008,125000,38.701499,-121.376223828 BLACKFOOT WAY,ANTELOPE,95843,CA,3,2,1088,Residential,Wed May 21 00:00:00 EDT 2008,126640,38.70974,-121.373774108 NORTON WAY,SACRAMENTO,95820,CA,3,1,963,Residential,Wed May 21 00:00:00 EDT 2008,127281,38.537526,-121.4783151469 JANRICK AVE,SACRAMENTO,95832,CA,3,2,1119,Residential,Wed May 21 00:00:00 EDT 2008,129000,38.476472,-121.5017119861 CULP WAY,SACRAMENTO,95827,CA,4,2,1380,Residential,Wed May 21 00:00:00 EDT 2008,131200,38.558423,-121.3279487825 CREEK VALLEY CIR,SACRAMENTO,95828,CA,3,2,1248,Residential,Wed May 21 00:00:00 EDT 2008,132000,38.472122,-121.4041995201 LAGUNA OAKS DR Unit 140,ELK GROVE,95758,CA,2,2,1039,Condo,Wed May 21 00:00:00 EDT 2008,133000,38.423251,-121.4444896768 MEDORA DR,NORTH HIGHLANDS,95660,CA,3,2,1152,Residential,Wed May 21 00:00:00 EDT 2008,134555,38.691161,-121.371923100 EXPLORER DR,SACRAMENTO,95827,CA,3,2,1380,Residential,Wed May 21 00:00:00 EDT 2008,136500,38.566663,-121.3326447944 DOMINION WAY,ELVERTA,95626,CA,3,2,1116,Residential,Wed May 21 00:00:00 EDT 2008,138750,38.713182,-121.4112275201 LAGUNA OAKS DR Unit 162,ELK GROVE,95758,CA,2,2,1039,Condo,Wed May 21 00:00:00 EDT 2008,141000,38.423251,-121.4444893920 SHINING STAR DR,SACRAMENTO,95823,CA,3,2,1418,Residential,Wed May 21 00:00:00 EDT 2008,146250,38.48742,-121.4624595031 CORVAIR ST,NORTH HIGHLANDS,95660,CA,3,2,1082,Residential,Wed May 21 00:00:00 EDT 2008,147308,38.658246,-121.3754697661 NIXOS WAY,SACRAMENTO,95823,CA,4,2,1472,Residential,Wed May 21 00:00:00 EDT 2008,148750,38.479553,-121.4633177044 CARTHY WAY,SACRAMENTO,95828,CA,4,2,1146,Residential,Wed May 21 00:00:00 EDT 2008,149593,38.49857,-121.4209252442 LARKSPUR LN,SACRAMENTO,95825,CA,1,1,760,Condo,Wed May 21 00:00:00 EDT 2008,150000,38.58514,-121.4037364800 WESTLAKE PKWY Unit 2109,SACRAMENTO,95835,CA,2,2,1304,Condo,Wed May 21 00:00:00 EDT 2008,152000,38.658812,-121.5423452178 63RD AVE,SACRAMENTO,95822,CA,3,2,1207,Residential,Wed May 21 00:00:00 EDT 2008,154000,38.493955,-121.489668718 ELK WAY,ELK GROVE,95624,CA,3,2,1056,Residential,Wed May 21 00:00:00 EDT 2008,156896,38.41653,-121.3796535708 RIDGEPOINT DR,ANTELOPE,95843,CA,2,2,1043,Residential,Wed May 21 00:00:00 EDT 2008,161250,38.72027,-121.3315557315 KOALA CT,NORTH HIGHLANDS,95660,CA,4,2,1587,Residential,Wed May 21 00:00:00 EDT 2008,161500,38.699251,-121.3714142622 ERIN DR,SACRAMENTO,95833,CA,4,1,1120,Residential,Wed May 21 00:00:00 EDT 2008,164000,38.613765,-121.4886948421 SUNBLAZE WAY,SACRAMENTO,95823,CA,4,2,1580,Residential,Wed May 21 00:00:00 EDT 2008,165000,38.450543,-121.4325387420 ALIX PKWY,SACRAMENTO,95823,CA,4,1,1955,Residential,Wed May 21 00:00:00 EDT 2008,166357,38.489405,-121.4528113820 NATOMA WAY,SACRAMENTO,95838,CA,4,2,1656,Residential,Wed May 21 00:00:00 EDT 2008,166357,38.636748,-121.4221594431 GREEN TREE DR,SACRAMENTO,95823,CA,3,2,1477,Residential,Wed May 21 00:00:00 EDT 2008,168000,38.499954,-121.4544699417 SARA ST,ELK GROVE,95624,CA,3,2,1188,Residential,Wed May 21 00:00:00 EDT 2008,170000,38.415518,-121.3705278299 HALBRITE WAY,SACRAMENTO,95828,CA,4,2,1590,Residential,Wed May 21 00:00:00 EDT 2008,173000,38.473814,-121.47223 KALLIE KAY LN,SACRAMENTO,95823,CA,3,2,1463,Residential,Wed May 21 00:00:00 EDT 2008,174250,38.477553,-121.4194638156 STEINBECK WAY,SACRAMENTO,95828,CA,4,2,1714,Residential,Wed May 21 00:00:00 EDT 2008,174313,38.474853,-121.4063267957 VALLEY GREEN DR,SACRAMENTO,95823,CA,3,2,1185,Residential,Wed May 21 00:00:00 EDT 2008,178480,38.465184,-121.4349251122 WILD POPPY CT,GALT,95632,CA,3,2,1406,Residential,Wed May 21 00:00:00 EDT 2008,178760,38.287789,-121.2947154520 BOMARK WAY,SACRAMENTO,95842,CA,4,2,1943,Multi-Family,Wed May 21 00:00:00 EDT 2008,179580,38.665724,-121.3585769012 KIEFER BLVD,SACRAMENTO,95826,CA,3,2,1172,Residential,Wed May 21 00:00:00 EDT 2008,181000,38.547011,-121.3662175332 SANDSTONE ST,CARMICHAEL,95608,CA,3,1,1152,Residential,Wed May 21 00:00:00 EDT 2008,181872,38.662105,-121.3139455993 SAWYER CIR,SACRAMENTO,95823,CA,4,3,1851,Residential,Wed May 21 00:00:00 EDT 2008,182587,38.4473,-121.4352184844 CLYDEBANK WAY,ANTELOPE,95843,CA,3,2,1215,Residential,Wed May 21 00:00:00 EDT 2008,182716,38.714609,-121.347887306 CAMELLIA WAY,GALT,95632,CA,3,2,1130,Residential,Wed May 21 00:00:00 EDT 2008,182750,38.260443,-121.2978649021 MADISON AVE,ORANGEVALE,95662,CA,4,2,1603,Residential,Wed May 21 00:00:00 EDT 2008,183200,38.664186,-121.217511404 6TH ST,GALT,95632,CA,3,1,1479,Residential,Wed May 21 00:00:00 EDT 2008,188741,38.251808,-121.3024938317 SUNNY CREEK WAY,SACRAMENTO,95823,CA,3,2,1420,Residential,Wed May 21 00:00:00 EDT 2008,189000,38.459041,-121.4246442617 BASS CT,SACRAMENTO,95826,CA,3,2,1280,Residential,Wed May 21 00:00:00 EDT 2008,192067,38.560767,-121.3774717005 TIANT WAY,ELK GROVE,95758,CA,3,2,1586,Residential,Wed May 21 00:00:00 EDT 2008,194000,38.422811,-121.4232857895 CABER WAY,ANTELOPE,95843,CA,3,2,1362,Residential,Wed May 21 00:00:00 EDT 2008,194818,38.711279,-121.3934497624 BOGEY CT,SACRAMENTO,95828,CA,4,4,2162,Multi-Family,Wed May 21 00:00:00 EDT 2008,195000,38.48009,-121.4151026930 HAMPTON COVE WAY,SACRAMENTO,95823,CA,3,2,1266,Residential,Wed May 21 00:00:00 EDT 2008,198000,38.44004,-121.4210128708 MESA BROOK WAY,ELK GROVE,95624,CA,4,2,1715,Residential,Wed May 21 00:00:00 EDT 2008,199500,38.44076,-121.385792120 GRANT LN,FOLSOM,95630,CA,3,2,1820,Residential,Wed May 21 00:00:00 EDT 2008,200000,38.687742,-121.171045907 ELLERSLEE DR,CARMICHAEL,95608,CA,3,1,936,Residential,Wed May 21 00:00:00 EDT 2008,200000,38.664468,-121.3268317 SERASPI CT,SACRAMENTO,95834,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,206000,38.631481,-121.50188170 PENHOW CIR,SACRAMENTO,95834,CA,3,2,1511,Residential,Wed May 21 00:00:00 EDT 2008,208000,38.653439,-121.5351698345 STAR THISTLE WAY,SACRAMENTO,95823,CA,4,2,1590,Residential,Wed May 21 00:00:00 EDT 2008,212864,38.454349,-121.4392399080 FRESCA WAY,ELK GROVE,95758,CA,4,2,1596,Residential,Wed May 21 00:00:00 EDT 2008,221000,38.427818,-121.424026391 NATALINO CIR,SACRAMENTO,95835,CA,2,2,1341,Residential,Wed May 21 00:00:00 EDT 2008,221000,38.67307,-121.5063738373 BLACKMAN WAY,ELK GROVE,95624,CA,5,3,2136,Residential,Wed May 21 00:00:00 EDT 2008,223058,38.435436,-121.3945369837 CORTE DORADO CT,ELK GROVE,95624,CA,4,2,1616,Residential,Wed May 21 00:00:00 EDT 2008,227887,38.400676,-121.381015037 J PKWY,SACRAMENTO,95823,CA,3,2,1478,Residential,Wed May 21 00:00:00 EDT 2008,231477,38.491399,-121.44354710245 LOS PALOS DR,RANCHO CORDOVA,95670,CA,3,2,1287,Residential,Wed May 21 00:00:00 EDT 2008,234697,38.593699,-121.310896613 NAVION DR,CITRUS HEIGHTS,95621,CA,4,2,1277,Residential,Wed May 21 00:00:00 EDT 2008,235000,38.702855,-121.313082887 AZEVEDO DR,SACRAMENTO,95833,CA,4,2,1448,Residential,Wed May 21 00:00:00 EDT 2008,236000,38.618457,-121.5094399186 KINBRACE CT,SACRAMENTO,95829,CA,4,3,2235,Residential,Wed May 21 00:00:00 EDT 2008,236685,38.463355,-121.3589364243 MIDDLEBURY WAY,MATHER,95655,CA,3,2,2093,Residential,Wed May 21 00:00:00 EDT 2008,237800,38.547991,-121.2804831028 FALLON PLACE CT,RIO LINDA,95673,CA,3,2,1193,Residential,Wed May 21 00:00:00 EDT 2008,240122,38.693818,-121.4411534804 NORIKER DR,ELK GROVE,95757,CA,3,2,2163,Residential,Wed May 21 00:00:00 EDT 2008,242638,38.400974,-121.4484247713 HARVEST WOODS DR,SACRAMENTO,95828,CA,3,2,1269,Residential,Wed May 21 00:00:00 EDT 2008,244000,38.478198,-121.4129112866 KARITSA AVE,SACRAMENTO,95833,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,244500,38.626671,-121.525976913 RICHEVE WAY,SACRAMENTO,95828,CA,3,1,958,Residential,Wed May 21 00:00:00 EDT 2008,244960,38.502519,-121.4207698636 TEGEA WAY,ELK GROVE,95624,CA,5,3,2508,Residential,Wed May 21 00:00:00 EDT 2008,245918,38.443832,-121.3820875448 MAIDSTONE WAY,CITRUS HEIGHTS,95621,CA,3,2,1305,Residential,Wed May 21 00:00:00 EDT 2008,250000,38.665395,-121.29328818 OLLIE CT,ELK GROVE,95758,CA,4,2,1591,Residential,Wed May 21 00:00:00 EDT 2008,250000,38.444909,-121.4123454010 ALEX LN,CARMICHAEL,95608,CA,2,2,1326,Condo,Wed May 21 00:00:00 EDT 2008,250134,38.637028,-121.3129634901 MILLNER WAY,ELK GROVE,95757,CA,3,2,1843,Residential,Wed May 21 00:00:00 EDT 2008,254200,38.38692,-121.4473494818 BRITTNEY LEE CT,SACRAMENTO,95841,CA,4,2,1921,Residential,Wed May 21 00:00:00 EDT 2008,254200,38.653917,-121.342185529 LAGUNA PARK DR,ELK GROVE,95758,CA,5,3,2790,Residential,Wed May 21 00:00:00 EDT 2008,258000,38.42568,-121.438062230 CANDELA CIR,SACRAMENTO,95835,CA,3,2,1541,Residential,Wed May 21 00:00:00 EDT 2008,260000,38.656251,-121.5475724900 71ST ST,SACRAMENTO,95820,CA,3,1,1018,Residential,Wed May 21 00:00:00 EDT 2008,260014,38.53151,-121.42108912209 CONSERVANCY WAY,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,263500,38.553867,-121.2191414236 NATOMAS CENTRAL DR,SACRAMENTO,95834,CA,3,2,1672,Condo,Wed May 21 00:00:00 EDT 2008,265000,38.648879,-121.5440235615 LUPIN LN,POLLOCK PINES,95726,CA,3,2,1380,Residential,Wed May 21 00:00:00 EDT 2008,265000,38.708315,-120.6038725625 JAMES WAY,SACRAMENTO,95822,CA,3,1,975,Residential,Wed May 21 00:00:00 EDT 2008,271742,38.523947,-121.4849467842 LAHONTAN CT,SACRAMENTO,95829,CA,4,3,2372,Residential,Wed May 21 00:00:00 EDT 2008,273750,38.472976,-121.3186336850 21ST ST,SACRAMENTO,95822,CA,3,2,1446,Residential,Wed May 21 00:00:00 EDT 2008,275086,38.502194,-121.4907952900 BLAIR RD,POLLOCK PINES,95726,CA,2,2,1284,Residential,Wed May 21 00:00:00 EDT 2008,280908,38.75485,-120.604762064 EXPEDITION WAY,SACRAMENTO,95832,CA,4,3,3009,Residential,Wed May 21 00:00:00 EDT 2008,280987,38.474099,-121.4907112912 NORCADE CIR,SACRAMENTO,95826,CA,8,4,3612,Multi-Family,Wed May 21 00:00:00 EDT 2008,282400,38.559505,-121.3648399507 SEA CLIFF WAY,ELK GROVE,95758,CA,4,2,2056,Residential,Wed May 21 00:00:00 EDT 2008,285000,38.410992,-121.4790438882 AUTUMN GOLD CT,ELK GROVE,95624,CA,4,2,1993,Residential,Wed May 21 00:00:00 EDT 2008,287417,38.4439,-121.372555322 WHITE LOTUS WAY,ELK GROVE,95757,CA,3,2,1857,Residential,Wed May 21 00:00:00 EDT 2008,291000,38.391538,-121.4425961838 CASTRO WAY,SACRAMENTO,95818,CA,2,1,1126,Residential,Wed May 21 00:00:00 EDT 2008,292024,38.556098,-121.49078710158 CRAWFORD WAY,SACRAMENTO,95827,CA,4,4,2213,Multi-Family,Wed May 21 00:00:00 EDT 2008,297000,38.5703,-121.3157357731 MASTERS ST,ELK GROVE,95758,CA,5,3,2494,Residential,Wed May 21 00:00:00 EDT 2008,297000,38.442031,-121.4108734925 PERCHERON DR,ELK GROVE,95757,CA,3,2,1843,Residential,Wed May 21 00:00:00 EDT 2008,298000,38.40154,-121.4476492010 PROMONTORY POINT LN,GOLD RIVER,95670,CA,2,2,1520,Residential,Wed May 21 00:00:00 EDT 2008,299000,38.62869,-121.2616694727 SAVOIE WAY,SACRAMENTO,95835,CA,5,3,2800,Residential,Wed May 21 00:00:00 EDT 2008,304037,38.658182,-121.5495218664 MAGNOLIA HILL WAY,ELK GROVE,95624,CA,4,2,2309,Residential,Wed May 21 00:00:00 EDT 2008,311000,38.442352,-121.3896759570 HARVEST ROSE WAY,SACRAMENTO,95827,CA,5,3,2367,Residential,Wed May 21 00:00:00 EDT 2008,315537,38.555993,-121.3403524359 CREGAN CT,RANCHO CORDOVA,95742,CA,5,4,3516,Residential,Wed May 21 00:00:00 EDT 2008,320000,38.545128,-121.2249225337 DUSTY ROSE WAY,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,320000,38.528575,-121.22868929 SUTTERS GOLD DR,SACRAMENTO,95826,CA,4,3,1914,Residential,Wed May 21 00:00:00 EDT 2008,328360,38.550848,-121.3702248025 PEERLESS AVE,ORANGEVALE,95662,CA,2,1,1690,Residential,Wed May 21 00:00:00 EDT 2008,334150,38.71147,-121.2162144620 WELERA WAY,ELK GROVE,95757,CA,3,3,2725,Residential,Wed May 21 00:00:00 EDT 2008,335750,38.398609,-121.4501489723 TERRAPIN CT,ELK GROVE,95757,CA,4,3,2354,Residential,Wed May 21 00:00:00 EDT 2008,335750,38.403492,-121.4302242115 SMOKESTACK WAY,SACRAMENTO,95833,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,339500,38.602416,-121.542965100 REBECCA WAY,FOLSOM,95630,CA,3,2,2185,Residential,Wed May 21 00:00:00 EDT 2008,344250,38.68479,-121.1491999488 OAK VILLAGE WAY,ELK GROVE,95758,CA,4,2,1801,Residential,Wed May 21 00:00:00 EDT 2008,346210,38.41333,-121.4049998495 DARTFORD DR,SACRAMENTO,95823,CA,3,3,1961,Residential,Wed May 21 00:00:00 EDT 2008,347029,38.448507,-121.4213466708 PONTA DO SOL WAY,ELK GROVE,95757,CA,4,2,3134,Residential,Wed May 21 00:00:00 EDT 2008,347650,38.380635,-121.4255384143 SEA MEADOW WAY,SACRAMENTO,95823,CA,4,3,1915,Residential,Wed May 21 00:00:00 EDT 2008,351300,38.46534,-121.4575193020 RICHARDSON CIR,EL DORADO HILLS,95762,CA,3,2,0,Residential,Wed May 21 00:00:00 EDT 2008,352000,38.691299,-121.0817528082 LINDA ISLE LN,SACRAMENTO,95831,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,370000,38.4772,-121.521515300 MURIETA SOUTH PKWY,RANCHO MURIETA,95683,CA,4,3,2734,Residential,Wed May 21 00:00:00 EDT 2008,370500,38.4874,-121.07512911215 SHARRMONT CT,WILTON,95693,CA,3,2,2110,Residential,Wed May 21 00:00:00 EDT 2008,372000,38.35062,-121.2283497105 DANBERG WAY,ELK GROVE,95757,CA,5,3,3164,Residential,Wed May 21 00:00:00 EDT 2008,375000,38.4019,-121.4203885579 JERRY LITELL WAY,SACRAMENTO,95835,CA,5,3,3599,Residential,Wed May 21 00:00:00 EDT 2008,381300,38.677126,-121.5005191050 FOXHALL WAY,SACRAMENTO,95831,CA,4,2,2054,Residential,Wed May 21 00:00:00 EDT 2008,381942,38.509819,-121.5196617837 ABBINGTON WAY,ANTELOPE,95843,CA,4,2,1830,Residential,Wed May 21 00:00:00 EDT 2008,387731,38.709873,-121.3394721300 F ST,SACRAMENTO,95814,CA,3,3,1627,Residential,Wed May 21 00:00:00 EDT 2008,391000,38.58355,-121.4872896801 RAWLEY WAY,ELK GROVE,95757,CA,4,3,3440,Residential,Wed May 21 00:00:00 EDT 2008,394470,38.408351,-121.4239251693 SHELTER COVE DR,GREENWOOD,95635,CA,3,2,2846,Residential,Wed May 21 00:00:00 EDT 2008,395000,38.945357,-120.9088229361 WADDELL LN,ELK GROVE,95624,CA,4,3,2359,Residential,Wed May 21 00:00:00 EDT 2008,400186,38.450829,-121.34992810 SEA FOAM CT,SACRAMENTO,95831,CA,3,3,2052,Residential,Wed May 21 00:00:00 EDT 2008,415000,38.487885,-121.5459476945 RIO TEJO WAY,ELK GROVE,95757,CA,5,3,3433,Residential,Wed May 21 00:00:00 EDT 2008,425000,38.385638,-121.4226164186 TULIP PARK WAY,RANCHO CORDOVA,95742,CA,5,3,3615,Residential,Wed May 21 00:00:00 EDT 2008,430000,38.550617,-121.235269278 DAIRY CT,ELK GROVE,95624,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,445000,38.420338,-121.363757207 ORANGE BLOSSOM CIR Unit C,FOLSOM,95630,CA,5,3,2687,Residential,Wed May 21 00:00:00 EDT 2008,460000,38.646273,-121.1753226507 RIO DE ONAR WAY,ELK GROVE,95757,CA,4,3,2724,Residential,Wed May 21 00:00:00 EDT 2008,461000,38.38253,-121.4280077004 RAWLEY WAY,ELK GROVE,95757,CA,4,3,3440,Residential,Wed May 21 00:00:00 EDT 2008,489332,38.406421,-121.4220816503 RIO DE ONAR WAY,ELK GROVE,95757,CA,5,4,3508,Residential,Wed May 21 00:00:00 EDT 2008,510000,38.38253,-121.4280382217 APPALOOSA CT,FOLSOM,95630,CA,4,2,2462,Residential,Wed May 21 00:00:00 EDT 2008,539000,38.655167,-121.090178868 HILDEBRAND CIR,FOLSOM,95630,CA,0,0,0,Residential,Wed May 21 00:00:00 EDT 2008,585000,38.670947,-121.0977276030 PALERMO WAY,EL DORADO HILLS,95762,CA,4,3,0,Residential,Wed May 21 00:00:00 EDT 2008,600000,38.672761,-121.0503784070 REDONDO DR,EL DORADO HILLS,95762,CA,4,3,0,Residential,Wed May 21 00:00:00 EDT 2008,606238,38.666807,-121.064834004 CRESTA WAY,SACRAMENTO,95864,CA,3,3,2325,Residential,Wed May 21 00:00:00 EDT 2008,660000,38.591618,-121.370626315 JUMEL CT,EL DORADO HILLS,95762,CA,6,5,0,Residential,Wed May 21 00:00:00 EDT 2008,830000,38.669931,-121.059586272 LONGFORD DR Unit 1,CITRUS HEIGHTS,95621,CA,2,1,795,Condo,Tue May 20 00:00:00 EDT 2008,69000,38.680923,-121.3139453432 Y ST,SACRAMENTO,95817,CA,4,2,1099,Residential,Tue May 20 00:00:00 EDT 2008,70000,38.554967,-121.4680469512 EMERALD PARK DR Unit 3,ELK GROVE,95624,CA,2,1,840,Condo,Tue May 20 00:00:00 EDT 2008,71000,38.40573,-121.3698323132 CLAY ST,SACRAMENTO,95815,CA,2,1,800,Residential,Tue May 20 00:00:00 EDT 2008,78000,38.624678,-121.4392035221 38TH AVE,SACRAMENTO,95824,CA,2,1,746,Residential,Tue May 20 00:00:00 EDT 2008,78400,38.518044,-121.4435556112 HERMOSA ST,SACRAMENTO,95822,CA,3,1,1067,Residential,Tue May 20 00:00:00 EDT 2008,80000,38.515125,-121.480416483 ARCADE BLVD,SACRAMENTO,95815,CA,4,2,1316,Residential,Tue May 20 00:00:00 EDT 2008,89000,38.623571,-121.454884671 SONOMA AVE,SACRAMENTO,95815,CA,3,1,1337,Residential,Tue May 20 00:00:00 EDT 2008,90000,38.622953,-121.4501425980 79TH ST,SACRAMENTO,95824,CA,2,1,868,Residential,Tue May 20 00:00:00 EDT 2008,90000,38.518373,-121.4117797607 ELDER CREEK RD,SACRAMENTO,95824,CA,3,1,924,Residential,Tue May 20 00:00:00 EDT 2008,92000,38.51055,-121.4147685028 14TH AVE,SACRAMENTO,95820,CA,2,1,610,Residential,Tue May 20 00:00:00 EDT 2008,93675,38.53942,-121.44689414788 NATCHEZ CT,RANCHO MURIETA,95683,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,97750,38.492287,-121.1000321069 ACACIA AVE,SACRAMENTO,95815,CA,2,1,1220,Residential,Tue May 20 00:00:00 EDT 2008,98000,38.621998,-121.4422385201 LAGUNA OAKS DR Unit 199,ELK GROVE,95758,CA,1,1,722,Condo,Tue May 20 00:00:00 EDT 2008,98000,38.423251,-121.4444893847 LAS PASAS WAY,SACRAMENTO,95864,CA,3,1,1643,Residential,Tue May 20 00:00:00 EDT 2008,99000,38.588672,-121.3739165201 LAGUNA OAKS DR Unit 172,ELK GROVE,95758,CA,1,1,722,Condo,Tue May 20 00:00:00 EDT 2008,100000,38.423251,-121.4444891121 CREEKSIDE WAY,GALT,95632,CA,3,1,1080,Residential,Tue May 20 00:00:00 EDT 2008,106716,38.241514,-121.3121995307 CABRILLO WAY,SACRAMENTO,95820,CA,3,1,1039,Residential,Tue May 20 00:00:00 EDT 2008,111000,38.52712,-121.4353483725 DON JULIO BLVD,NORTH HIGHLANDS,95660,CA,3,1,1051,Residential,Tue May 20 00:00:00 EDT 2008,111000,38.67895,-121.3794064803 MCCLOUD DR,SACRAMENTO,95842,CA,2,2,967,Residential,Tue May 20 00:00:00 EDT 2008,114800,38.682279,-121.35281710542 SILVERWOOD WAY,RANCHO CORDOVA,95670,CA,3,1,1098,Residential,Tue May 20 00:00:00 EDT 2008,120108,38.587156,-121.2957786318 39TH AVE,SACRAMENTO,95824,CA,3,1,1050,Residential,Tue May 20 00:00:00 EDT 2008,123225,38.518942,-121.430158211 MCDANIEL CIR,SACRAMENTO,95838,CA,3,2,1110,Residential,Tue May 20 00:00:00 EDT 2008,123750,38.636565,-121.4603833800 LYNHURST WAY,NORTH HIGHLANDS,95660,CA,3,1,888,Residential,Tue May 20 00:00:00 EDT 2008,125000,38.650445,-121.3748616139 HERMOSA ST,SACRAMENTO,95822,CA,3,2,1120,Residential,Tue May 20 00:00:00 EDT 2008,125000,38.514665,-121.4804112505 RHINE WAY,ELVERTA,95626,CA,3,2,1080,Residential,Tue May 20 00:00:00 EDT 2008,126000,38.717976,-121.4076843692 PAYNE WAY,NORTH HIGHLANDS,95660,CA,3,1,957,Residential,Tue May 20 00:00:00 EDT 2008,129000,38.66654,-121.378298604 MORRISON AVE,SACRAMENTO,95838,CA,2,1,952,Residential,Tue May 20 00:00:00 EDT 2008,134000,38.637678,-121.452476648 SANTA ANA AVE,SACRAMENTO,95838,CA,3,2,1211,Residential,Tue May 20 00:00:00 EDT 2008,135000,38.658478,-121.45040914 ASHLEY OAKS CT,SACRAMENTO,95815,CA,3,2,1264,Residential,Tue May 20 00:00:00 EDT 2008,135500,38.61779,-121.4367653174 NORTHVIEW DR,SACRAMENTO,95833,CA,3,1,1080,Residential,Tue May 20 00:00:00 EDT 2008,140000,38.623817,-121.477827840 TRANQUIL LN,GALT,95632,CA,3,2,1266,Residential,Tue May 20 00:00:00 EDT 2008,140000,38.270617,-121.2992055333 PRIMROSE DR Unit 19A,FAIR OAKS,95628,CA,2,2,994,Condo,Tue May 20 00:00:00 EDT 2008,142500,38.662785,-121.2762721035 MILLET WAY,SACRAMENTO,95834,CA,3,2,1202,Residential,Tue May 20 00:00:00 EDT 2008,143500,38.631056,-121.485085201 LAGUNA OAKS DR Unit 126,ELK GROVE,95758,CA,0,0,0,Condo,Tue May 20 00:00:00 EDT 2008,145000,38.423251,-121.4444893328 22ND AVE,SACRAMENTO,95820,CA,2,1,722,Residential,Tue May 20 00:00:00 EDT 2008,145000,38.532727,-121.4707838001 HARTWICK WAY,SACRAMENTO,95828,CA,4,2,1448,Residential,Tue May 20 00:00:00 EDT 2008,145000,38.488623,-121.4105827812 HARTWICK WAY,SACRAMENTO,95828,CA,3,2,1188,Residential,Tue May 20 00:00:00 EDT 2008,145000,38.488611,-121.4128084207 PAINTER WAY,NORTH HIGHLANDS,95660,CA,4,2,1183,Residential,Tue May 20 00:00:00 EDT 2008,146000,38.692915,-121.3674977458 WINKLEY WAY,SACRAMENTO,95822,CA,3,1,1320,Residential,Tue May 20 00:00:00 EDT 2008,148500,38.487444,-121.4913668354 SUNRISE WOODS WAY,SACRAMENTO,95828,CA,3,2,1117,Residential,Tue May 20 00:00:00 EDT 2008,149000,38.473288,-121.39638116 COTTONMILL CIR,SACRAMENTO,95828,CA,3,2,1364,Residential,Tue May 20 00:00:00 EDT 2008,150000,38.482876,-121.4059124660 CEDARWOOD WAY,SACRAMENTO,95823,CA,4,2,1310,Residential,Tue May 20 00:00:00 EDT 2008,150000,38.484834,-121.4493169254 HARROGATE WAY,ELK GROVE,95758,CA,2,2,1006,Residential,Tue May 20 00:00:00 EDT 2008,152000,38.420138,-121.4121796716 TAREYTON WAY,CITRUS HEIGHTS,95621,CA,3,2,1104,Residential,Tue May 20 00:00:00 EDT 2008,156000,38.693724,-121.3071692028 ROBERT WAY,SACRAMENTO,95825,CA,2,1,810,Residential,Tue May 20 00:00:00 EDT 2008,156000,38.609982,-121.4192639346 AIZENBERG CIR,ELK GROVE,95624,CA,2,2,1123,Residential,Tue May 20 00:00:00 EDT 2008,156000,38.41875,-121.3700194524 LOCH HAVEN WAY,SACRAMENTO,95842,CA,2,1,904,Residential,Tue May 20 00:00:00 EDT 2008,157788,38.67273,-121.3596457140 BLUE SPRINGS WAY,CITRUS HEIGHTS,95621,CA,3,2,1156,Residential,Tue May 20 00:00:00 EDT 2008,161653,38.720653,-121.3022414631 11TH AVE,SACRAMENTO,95820,CA,2,1,1321,Residential,Tue May 20 00:00:00 EDT 2008,161829,38.541965,-121.4521323228 BAGGAN CT,ANTELOPE,95843,CA,3,2,1392,Residential,Tue May 20 00:00:00 EDT 2008,165000,38.715346,-121.3881638515 DARTFORD DR,SACRAMENTO,95823,CA,3,2,1439,Residential,Tue May 20 00:00:00 EDT 2008,168000,38.448288,-121.4207194500 TIPPWOOD WAY,SACRAMENTO,95842,CA,3,2,1159,Residential,Tue May 20 00:00:00 EDT 2008,169000,38.69951,-121.3599892460 EL ROCCO WAY,RANCHO CORDOVA,95670,CA,3,2,1671,Residential,Tue May 20 00:00:00 EDT 2008,175000,38.591477,-121.315348244 SUNBIRD WAY,SACRAMENTO,95823,CA,3,2,1740,Residential,Tue May 20 00:00:00 EDT 2008,176250,38.457654,-121.4313815841 VALLEY VALE WAY,SACRAMENTO,95823,CA,3,2,1265,Residential,Tue May 20 00:00:00 EDT 2008,179000,38.461283,-121.4343227863 CRESTLEIGH CT,ANTELOPE,95843,CA,2,2,1007,Residential,Tue May 20 00:00:00 EDT 2008,180000,38.710889,-121.3588767129 SPRINGMONT DR,ELK GROVE,95758,CA,3,2,1716,Residential,Tue May 20 00:00:00 EDT 2008,180400,38.417649,-121.4202948284 RED FOX WAY,ELK GROVE,95758,CA,4,2,1685,Residential,Tue May 20 00:00:00 EDT 2008,182000,38.417182,-121.3972312219 EL CANTO CIR,RANCHO CORDOVA,95670,CA,4,2,1829,Residential,Tue May 20 00:00:00 EDT 2008,184500,38.592383,-121.3186698907 GEMWOOD WAY,ELK GROVE,95758,CA,3,2,1555,Residential,Tue May 20 00:00:00 EDT 2008,185000,38.435471,-121.4411735925 MALEVILLE AVE,CARMICHAEL,95608,CA,4,2,1120,Residential,Tue May 20 00:00:00 EDT 2008,189000,38.666564,-121.3257177031 CANEVALLEY CIR,CITRUS HEIGHTS,95621,CA,3,2,1137,Residential,Tue May 20 00:00:00 EDT 2008,194000,38.718693,-121.3036193949 WILDROSE WAY,SACRAMENTO,95826,CA,3,1,1174,Residential,Tue May 20 00:00:00 EDT 2008,195000,38.543697,-121.3666834437 MITCHUM CT,ANTELOPE,95843,CA,3,2,1393,Residential,Tue May 20 00:00:00 EDT 2008,200000,38.704407,-121.361132778 KAWEAH CT,CAMERON PARK,95682,CA,3,1,0,Residential,Tue May 20 00:00:00 EDT 2008,201000,38.694052,-120.9955891636 ALLENWOOD CIR,LINCOLN,95648,CA,4,2,0,Residential,Tue May 20 00:00:00 EDT 2008,202500,38.879192,-121.3094778151 QUAIL RIDGE CT,SACRAMENTO,95828,CA,3,2,1289,Residential,Tue May 20 00:00:00 EDT 2008,205000,38.461296,-121.3908584899 WIND CREEK DR,SACRAMENTO,95838,CA,4,2,1799,Residential,Tue May 20 00:00:00 EDT 2008,205000,38.655887,-121.4461192370 BIG CANYON CREEK RD,PLACERVILLE,95667,CA,3,2,0,Residential,Tue May 20 00:00:00 EDT 2008,205000,38.74458,-120.7942546049 HAMBURG WAY,SACRAMENTO,95823,CA,4,3,1953,Residential,Tue May 20 00:00:00 EDT 2008,205000,38.443253,-121.4319924232 71ST ST,SACRAMENTO,95820,CA,2,1,723,Residential,Tue May 20 00:00:00 EDT 2008,207000,38.536741,-121.421153361 BOW MAR CT,CAMERON PARK,95682,CA,2,2,0,Residential,Tue May 20 00:00:00 EDT 2008,210000,38.69437,-120.9966021889 COLD SPRINGS RD,PLACERVILLE,95667,CA,2,1,948,Residential,Tue May 20 00:00:00 EDT 2008,211500,38.739774,-120.8602435805 HIMALAYA WAY,CITRUS HEIGHTS,95621,CA,4,2,1578,Residential,Tue May 20 00:00:00 EDT 2008,215000,38.696489,-121.3285557944 SYLVAN OAK WAY,CITRUS HEIGHTS,95610,CA,3,2,1317,Residential,Tue May 20 00:00:00 EDT 2008,215000,38.710388,-121.2610963139 SPOONWOOD WAY Unit 1,SACRAMENTO,95833,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,215500,38.626582,-121.521516217 LEOLA WAY,SACRAMENTO,95824,CA,3,1,1360,Residential,Tue May 20 00:00:00 EDT 2008,222381,38.513066,-121.4519092340 HURLEY WAY,SACRAMENTO,95825,CA,0,0,0,Condo,Tue May 20 00:00:00 EDT 2008,225000,38.588816,-121.4085493035 BRUNNET LN,SACRAMENTO,95833,CA,3,2,1522,Residential,Tue May 20 00:00:00 EDT 2008,225000,38.624762,-121.5227753025 EL PRADO WAY,SACRAMENTO,95825,CA,4,2,1751,Residential,Tue May 20 00:00:00 EDT 2008,225000,38.606603,-121.3941479387 GRANITE FALLS CT,ELK GROVE,95624,CA,3,2,1465,Residential,Tue May 20 00:00:00 EDT 2008,225000,38.419214,-121.3485339257 CALDERA WAY,SACRAMENTO,95826,CA,4,2,1605,Residential,Tue May 20 00:00:00 EDT 2008,228000,38.55821,-121.355022441 ARLINGDALE CIR,RIO LINDA,95673,CA,4,2,1475,Residential,Tue May 20 00:00:00 EDT 2008,229665,38.702893,-121.4549492284 LOS ROBLES RD,MEADOW VISTA,95722,CA,3,1,1216,Residential,Tue May 20 00:00:00 EDT 2008,230000,39.008159,-121.036238164 CHENIN BLANC LN,FAIR OAKS,95628,CA,2,2,1315,Residential,Tue May 20 00:00:00 EDT 2008,230000,38.665644,-121.2599694620 CHAMBERLIN CIR,ELK GROVE,95757,CA,3,2,1567,Residential,Tue May 20 00:00:00 EDT 2008,230000,38.390557,-121.4498055340 BIRK WAY,SACRAMENTO,95835,CA,3,2,1776,Residential,Tue May 20 00:00:00 EDT 2008,234000,38.672495,-121.51525151 ANJOU CIR,SACRAMENTO,95835,CA,3,2,2187,Residential,Tue May 20 00:00:00 EDT 2008,235000,38.661658,-121.5406332125 22ND AVE,SACRAMENTO,95822,CA,3,1,1291,Residential,Tue May 20 00:00:00 EDT 2008,236250,38.534596,-121.493121611 BLOSSOM ROCK LN,FOLSOM,95630,CA,0,0,0,Condo,Tue May 20 00:00:00 EDT 2008,240000,38.6457,-121.11978830 ADUR RD,ELK GROVE,95624,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,242000,38.43742,-121.3728767344 BUTTERBALL WAY,SACRAMENTO,95842,CA,3,2,1503,Residential,Tue May 20 00:00:00 EDT 2008,245000,38.699489,-121.3618288219 GWINHURST CIR,SACRAMENTO,95828,CA,4,3,2491,Residential,Tue May 20 00:00:00 EDT 2008,245000,38.459711,-121.3842833240 S ST,SACRAMENTO,95816,CA,2,1,1269,Residential,Tue May 20 00:00:00 EDT 2008,245000,38.562296,-121.467489221 PICASSO CIR,SACRAMENTO,95835,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,250000,38.676658,-121.5281285706 GREENACRES WAY,ORANGEVALE,95662,CA,3,2,1176,Residential,Tue May 20 00:00:00 EDT 2008,250000,38.669882,-121.2135336900 LONICERA DR,ORANGEVALE,95662,CA,4,2,1456,Residential,Tue May 20 00:00:00 EDT 2008,250000,38.692199,-121.250975419 DAWNRIDGE RD,ROSEVILLE,95678,CA,3,2,1498,Residential,Tue May 20 00:00:00 EDT 2008,250000,38.725283,-121.2979535312 MARBURY WAY,ANTELOPE,95843,CA,3,2,1574,Residential,Tue May 20 00:00:00 EDT 2008,255000,38.710221,-121.3416516344 BONHAM CIR,CITRUS HEIGHTS,95610,CA,5,4,2085,Multi-Family,Tue May 20 00:00:00 EDT 2008,256054,38.682358,-121.2728768207 YORKTON WAY,SACRAMENTO,95829,CA,3,2,2170,Residential,Tue May 20 00:00:00 EDT 2008,257729,38.45967,-121.3604617922 MANSELL WAY,ELK GROVE,95758,CA,4,2,1595,Residential,Tue May 20 00:00:00 EDT 2008,260000,38.409634,-121.4107875712 MELBURY CIR,ANTELOPE,95843,CA,3,2,1567,Residential,Tue May 20 00:00:00 EDT 2008,261000,38.705849,-121.334701632 NEWBRIDGE LN,LINCOLN,95648,CA,4,2,0,Residential,Tue May 20 00:00:00 EDT 2008,261800,38.879084,-121.2985861570 GLIDDEN AVE,SACRAMENTO,95822,CA,4,2,1253,Residential,Tue May 20 00:00:00 EDT 2008,264469,38.482704,-121.5004338108 FILIFERA WAY,ANTELOPE,95843,CA,4,3,1768,Residential,Tue May 20 00:00:00 EDT 2008,265000,38.717042,-121.35468230 BANKSIDE WAY,SACRAMENTO,95835,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,270000,38.676937,-121.5292445342 CALABRIA WAY,SACRAMENTO,95835,CA,4,3,2030,Residential,Tue May 20 00:00:00 EDT 2008,270000,38.671807,-121.49827447 NAPONEE CT,SACRAMENTO,95835,CA,3,2,1531,Residential,Tue May 20 00:00:00 EDT 2008,270000,38.665704,-121.5290964236 ADRIATIC SEA WAY,SACRAMENTO,95834,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,270000,38.647961,-121.5431628864 REMBRANT CT,ELK GROVE,95624,CA,4,3,1653,Residential,Tue May 20 00:00:00 EDT 2008,275000,38.435288,-121.3757039455 SEA CLIFF WAY,ELK GROVE,95758,CA,4,2,2056,Residential,Tue May 20 00:00:00 EDT 2008,275000,38.411522,-121.4814069720 LITTLE HARBOR WAY,ELK GROVE,95624,CA,4,3,2494,Residential,Tue May 20 00:00:00 EDT 2008,280000,38.404934,-121.3524058806 PHOENIX AVE,FAIR OAKS,95628,CA,3,2,1450,Residential,Tue May 20 00:00:00 EDT 2008,286013,38.660322,-121.2301013578 LOGGERHEAD WAY,SACRAMENTO,95834,CA,4,2,2169,Residential,Tue May 20 00:00:00 EDT 2008,292000,38.633028,-121.5267551416 LOCKHART WAY,ROSEVILLE,95747,CA,3,2,1440,Residential,Tue May 20 00:00:00 EDT 2008,292000,38.752399,-121.3303285413 BUENA VENTURA WAY,FAIR OAKS,95628,CA,3,2,1527,Residential,Tue May 20 00:00:00 EDT 2008,293993,38.664552,-121.25593737 WHITE BIRCH CT,ROSEVILLE,95678,CA,3,2,1401,Residential,Tue May 20 00:00:00 EDT 2008,294000,38.776327,-121.284514405 MARLIN SPIKE WAY,SACRAMENTO,95838,CA,3,2,1411,Residential,Tue May 20 00:00:00 EDT 2008,296769,38.65783,-121.4568421102 CHESLEY LN,LINCOLN,95648,CA,4,4,0,Residential,Tue May 20 00:00:00 EDT 2008,297500,38.864864,-121.31398811281 STANFORD COURT LN Unit 604,GOLD RIVER,95670,CA,0,0,0,Condo,Tue May 20 00:00:00 EDT 2008,300000,38.625289,-121.2602867320 6TH ST,RIO LINDA,95673,CA,3,1,1284,Residential,Tue May 20 00:00:00 EDT 2008,300000,38.700553,-121.452223993 MANTON CT,GALT,95632,CA,4,3,2307,Residential,Tue May 20 00:00:00 EDT 2008,300000,38.272942,-121.2891484487 PANORAMA DR,PLACERVILLE,95667,CA,3,2,1329,Residential,Tue May 20 00:00:00 EDT 2008,300000,38.694559,-120.8481575651 OVERLEAF WAY,SACRAMENTO,95835,CA,4,2,1910,Residential,Tue May 20 00:00:00 EDT 2008,300500,38.677454,-121.4947912015 PROMONTORY POINT LN,GOLD RIVER,95670,CA,3,2,1981,Residential,Tue May 20 00:00:00 EDT 2008,305000,38.628732,-121.2611493224 PARKHAM DR,ROSEVILLE,95747,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,306500,38.772771,-121.36487715 VANESSA PL,SACRAMENTO,95835,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,312500,38.668692,-121.545491312 RENISON LN,LINCOLN,95648,CA,5,3,0,Residential,Tue May 20 00:00:00 EDT 2008,315000,38.866409,-121.3084858 RIVER RAFT CT,SACRAMENTO,95823,CA,4,2,2205,Residential,Tue May 20 00:00:00 EDT 2008,319789,38.447353,-121.4349692251 LAMPLIGHT LN,LINCOLN,95648,CA,2,2,1449,Residential,Tue May 20 00:00:00 EDT 2008,330000,38.849924,-121.275729106 FARHAM DR,FOLSOM,95630,CA,3,2,1258,Residential,Tue May 20 00:00:00 EDT 2008,330000,38.667834,-121.1685785405 NECTAR CIR,ELK GROVE,95757,CA,3,2,2575,Residential,Tue May 20 00:00:00 EDT 2008,331000,38.387014,-121.4409675411 10TH AVE,SACRAMENTO,95820,CA,2,1,539,Residential,Tue May 20 00:00:00 EDT 2008,334000,38.542727,-121.4424493512 RAINSONG CIR,RANCHO CORDOVA,95670,CA,4,3,2208,Residential,Tue May 20 00:00:00 EDT 2008,336000,38.573488,-121.2828091106 55TH ST,SACRAMENTO,95819,CA,3,1,1108,Residential,Tue May 20 00:00:00 EDT 2008,339000,38.563805,-121.436395411 ILLSLEY WAY,FOLSOM,95630,CA,4,2,1595,Residential,Tue May 20 00:00:00 EDT 2008,339000,38.652002,-121.129504796 BUTTERCUP CIR,GALT,95632,CA,4,2,2159,Residential,Tue May 20 00:00:00 EDT 2008,345000,38.279581,-121.3008281230 SANDRA CIR,PLACERVILLE,95667,CA,4,3,2295,Residential,Tue May 20 00:00:00 EDT 2008,350000,38.738141,-120.784145318 ANACAPA DR,ROSEVILLE,95678,CA,3,2,1838,Residential,Tue May 20 00:00:00 EDT 2008,356000,38.782094,-121.2971333975 SHINING STAR DR,SACRAMENTO,95823,CA,4,2,1900,Residential,Tue May 20 00:00:00 EDT 2008,361745,38.487409,-121.4614131620 BASLER ST,SACRAMENTO,95811,CA,4,2,1718,Residential,Tue May 20 00:00:00 EDT 2008,361948,38.591822,-121.4786449688 NATURE TRAIL WAY,ELK GROVE,95757,CA,5,3,3389,Residential,Tue May 20 00:00:00 EDT 2008,370000,38.405224,-121.4792755924 TANUS CIR,ROCKLIN,95677,CA,4,2,0,Residential,Tue May 20 00:00:00 EDT 2008,380000,38.778691,-121.2042929629 CEDAR OAK WAY,ELK GROVE,95757,CA,5,4,3260,Residential,Tue May 20 00:00:00 EDT 2008,385000,38.405527,-121.4317463429 FERNBROOK CT,CAMERON PARK,95682,CA,3,2,2016,Residential,Tue May 20 00:00:00 EDT 2008,399000,38.664225,-121.0071732121 HANNAH WAY,ROCKLIN,95765,CA,4,2,2607,Residential,Tue May 20 00:00:00 EDT 2008,402000,38.805749,-121.28093110104 ANNIE ST,ELK GROVE,95757,CA,4,3,2724,Residential,Tue May 20 00:00:00 EDT 2008,406026,38.390465,-121.4434791092 MAUGHAM CT,GALT,95632,CA,5,4,3746,Residential,Tue May 20 00:00:00 EDT 2008,420000,38.271646,-121.2868485404 ALMOND FALLS WAY,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,425000,38.527502,-121.2334926306 CONEJO,RANCHO MURIETA,95683,CA,4,2,3192,Residential,Tue May 20 00:00:00 EDT 2008,425000,38.512602,-121.08723314 CASA VATONI PL,SACRAMENTO,95834,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,433500,38.650221,-121.5517041456 EAGLESFIELD LN,LINCOLN,95648,CA,4,3,0,Residential,Tue May 20 00:00:00 EDT 2008,436746,38.857635,-121.3113754100 BOTHWELL CIR,EL DORADO HILLS,95762,CA,5,3,0,Residential,Tue May 20 00:00:00 EDT 2008,438700,38.679136,-121.034329427 21ST ST,SACRAMENTO,95811,CA,2,1,1247,Residential,Tue May 20 00:00:00 EDT 2008,445000,38.582604,-121.475761044 GALSTON DR,FOLSOM,95630,CA,4,2,2581,Residential,Tue May 20 00:00:00 EDT 2008,450000,38.676306,-121.099544440 SYCAMORE AVE,SACRAMENTO,95841,CA,3,1,2068,Residential,Tue May 20 00:00:00 EDT 2008,460000,38.646374,-121.3536581032 SOUZA DR,EL DORADO HILLS,95762,CA,3,2,0,Residential,Tue May 20 00:00:00 EDT 2008,460000,38.668239,-121.0644379760 LAZULITE CT,ELK GROVE,95624,CA,4,3,3992,Residential,Tue May 20 00:00:00 EDT 2008,460000,38.403609,-121.335541241 LANFRANCO CIR,SACRAMENTO,95835,CA,4,4,3397,Residential,Tue May 20 00:00:00 EDT 2008,465000,38.665696,-121.5494375559 NORTHBOROUGH DR,SACRAMENTO,95835,CA,5,3,3881,Residential,Tue May 20 00:00:00 EDT 2008,471750,38.677225,-121.5196872125 BIG SKY DR,ROCKLIN,95765,CA,5,3,0,Residential,Tue May 20 00:00:00 EDT 2008,480000,38.801637,-121.2787982109 HAMLET PL,CARMICHAEL,95608,CA,2,2,1598,Residential,Tue May 20 00:00:00 EDT 2008,484000,38.602754,-121.3293269970 STATE HIGHWAY 193,PLACERVILLE,95667,CA,4,3,1929,Residential,Tue May 20 00:00:00 EDT 2008,485000,38.787877,-120.8166762901 PINTAIL WAY,ELK GROVE,95757,CA,4,3,3070,Residential,Tue May 20 00:00:00 EDT 2008,495000,38.398488,-121.473424201 FIRESTONE DR,ROSEVILLE,95678,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,500500,38.770153,-121.3000391740 HIGH ST,AUBURN,95603,CA,3,3,0,Residential,Tue May 20 00:00:00 EDT 2008,504000,38.891935,-121.084342733 DANA LOOP,EL DORADO HILLS,95762,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,541000,38.628459,-121.0550789741 SADDLEBRED CT,WILTON,95693,CA,0,0,0,Residential,Tue May 20 00:00:00 EDT 2008,560000,38.408841,-121.1980397756 TIGERWOODS DR,SACRAMENTO,95829,CA,5,3,3984,Residential,Tue May 20 00:00:00 EDT 2008,572500,38.47643,-121.3092435709 RIVER OAK WAY,CARMICHAEL,95608,CA,4,2,2222,Residential,Tue May 20 00:00:00 EDT 2008,582000,38.602461,-121.3309792981 WRINGER DR,ROSEVILLE,95661,CA,4,3,3838,Residential,Tue May 20 00:00:00 EDT 2008,613401,38.735373,-121.2270728616 ROCKPORTE CT,ROSEVILLE,95747,CA,4,2,0,Residential,Tue May 20 00:00:00 EDT 2008,614000,38.742118,-121.3599094128 HILL ST,FAIR OAKS,95628,CA,5,5,2846,Residential,Tue May 20 00:00:00 EDT 2008,680000,38.64167,-121.2620991409 47TH ST,SACRAMENTO,95819,CA,5,2,2484,Residential,Tue May 20 00:00:00 EDT 2008,699000,38.563244,-121.4468763935 EL MONTE DR,LOOMIS,95650,CA,4,4,1624,Residential,Tue May 20 00:00:00 EDT 2008,839000,38.813337,-121.1333485840 WALERGA RD,SACRAMENTO,95842,CA,2,1,840,Condo,Mon May 19 00:00:00 EDT 2008,40000,38.673678,-121.357471923 FULTON AVE,SACRAMENTO,95825,CA,1,1,484,Condo,Mon May 19 00:00:00 EDT 2008,48000,38.582279,-121.401482261 REDONDO AVE,SACRAMENTO,95815,CA,3,1,970,Residential,Mon May 19 00:00:00 EDT 2008,61500,38.620685,-121.4605394030 BROADWAY,SACRAMENTO,95817,CA,2,1,623,Residential,Mon May 19 00:00:00 EDT 2008,62050,38.546798,-121.4600383660 22ND AVE,SACRAMENTO,95820,CA,2,1,932,Residential,Mon May 19 00:00:00 EDT 2008,65000,38.532718,-121.467473924 HIGH ST,SACRAMENTO,95838,CA,2,1,796,Residential,Mon May 19 00:00:00 EDT 2008,65000,38.638797,-121.4350494734 14TH AVE,SACRAMENTO,95820,CA,2,1,834,Residential,Mon May 19 00:00:00 EDT 2008,68000,38.539447,-121.4508584734 14TH AVE,SACRAMENTO,95820,CA,2,1,834,Residential,Mon May 19 00:00:00 EDT 2008,68000,38.539447,-121.4508585050 RHODE ISLAND DR Unit 4,SACRAMENTO,95841,CA,2,1,924,Condo,Mon May 19 00:00:00 EDT 2008,77000,38.658739,-121.3335614513 GREENHOLME DR,SACRAMENTO,95842,CA,2,1,795,Condo,Mon May 19 00:00:00 EDT 2008,82732,38.669104,-121.3590083845 ELM ST,SACRAMENTO,95838,CA,3,1,1250,Residential,Mon May 19 00:00:00 EDT 2008,84000,38.637337,-121.4328353908 17TH AVE,SACRAMENTO,95820,CA,2,1,984,Residential,Mon May 19 00:00:00 EDT 2008,84675,38.53728,-121.4635317109 CHANDLER DR,SACRAMENTO,95828,CA,3,1,1013,Residential,Mon May 19 00:00:00 EDT 2008,85000,38.497237,-121.4241877541 SKELTON WAY,SACRAMENTO,95822,CA,3,1,1012,Residential,Mon May 19 00:00:00 EDT 2008,90000,38.484274,-121.4888519058 MONTOYA ST,SACRAMENTO,95826,CA,2,1,795,Condo,Mon May 19 00:00:00 EDT 2008,90000,38.559144,-121.3683871016 CONGRESS AVE,SACRAMENTO,95838,CA,2,2,918,Residential,Mon May 19 00:00:00 EDT 2008,91000,38.630151,-121.442789540 MORRISON AVE,SACRAMENTO,95838,CA,3,1,1082,Residential,Mon May 19 00:00:00 EDT 2008,95000,38.637704,-121.4539465303 JERRETT WAY,SACRAMENTO,95842,CA,2,1,964,Residential,Mon May 19 00:00:00 EDT 2008,97500,38.663282,-121.3596312820 DEL PASO BLVD,SACRAMENTO,95815,CA,4,2,1404,Multi-Family,Mon May 19 00:00:00 EDT 2008,100000,38.617718,-121.4400893715 TALLYHO DR Unit 78HIGH,SACRAMENTO,95826,CA,1,1,625,Condo,Mon May 19 00:00:00 EDT 2008,100000,38.544627,-121.357966013 ROWAN WAY,CITRUS HEIGHTS,95621,CA,2,1,888,Residential,Mon May 19 00:00:00 EDT 2008,101000,38.675893,-121.29632987 PONDEROSA LN,SACRAMENTO,95815,CA,4,2,1120,Residential,Mon May 19 00:00:00 EDT 2008,102750,38.622243,-121.4578633732 LANKERSHIM WAY,NORTH HIGHLANDS,95660,CA,3,1,1331,Residential,Mon May 19 00:00:00 EDT 2008,112500,38.68972,-121.3783992216 DUNLAP DR,SACRAMENTO,95821,CA,3,1,1014,Residential,Mon May 19 00:00:00 EDT 2008,113000,38.623738,-121.413053503 21ST AVE,SACRAMENTO,95820,CA,4,2,1448,Residential,Mon May 19 00:00:00 EDT 2008,114000,38.53361,-121.469308523 EXCHANGE ST,SACRAMENTO,95838,CA,3,1,966,Residential,Mon May 19 00:00:00 EDT 2008,114000,38.659414,-121.454088101 PORT ROYALE WAY,SACRAMENTO,95823,CA,2,1,779,Residential,Mon May 19 00:00:00 EDT 2008,114750,38.463929,-121.4386678020 WALERGA RD,ANTELOPE,95843,CA,2,2,836,Condo,Mon May 19 00:00:00 EDT 2008,115000,38.71607,-121.364468167 VALLEY OAK DR,ROSEVILLE,95678,CA,2,2,1100,Condo,Mon May 19 00:00:00 EDT 2008,115000,38.732429,-121.2880697876 BURLINGTON WAY,SACRAMENTO,95832,CA,3,1,1174,Residential,Mon May 19 00:00:00 EDT 2008,116100,38.470093,-121.4683473726 JONKO AVE,NORTH HIGHLANDS,95660,CA,3,2,1207,Residential,Mon May 19 00:00:00 EDT 2008,119250,38.656131,-121.3772657342 GIGI PL,SACRAMENTO,95828,CA,4,4,1995,Multi-Family,Mon May 19 00:00:00 EDT 2008,120000,38.490704,-121.4101762610 PHYLLIS AVE,SACRAMENTO,95820,CA,2,1,804,Residential,Mon May 19 00:00:00 EDT 2008,120000,38.53105,-121.4795744200 COMMERCE WAY Unit 711,SACRAMENTO,95834,CA,2,2,958,Condo,Mon May 19 00:00:00 EDT 2008,120000,38.647523,-121.5232174621 COUNTRY SCENE WAY,SACRAMENTO,95823,CA,3,2,1366,Residential,Mon May 19 00:00:00 EDT 2008,120108,38.470187,-121.4481495380 VILLAGE WOOD DR,SACRAMENTO,95823,CA,2,2,901,Residential,Mon May 19 00:00:00 EDT 2008,121500,38.454949,-121.4405782621 EVERGREEN ST,SACRAMENTO,95815,CA,3,1,696,Residential,Mon May 19 00:00:00 EDT 2008,121725,38.613103,-121.444085201 CARLO CT,GALT,95632,CA,3,2,1080,Residential,Mon May 19 00:00:00 EDT 2008,122000,38.24227,-121.310326743 21ST ST,SACRAMENTO,95822,CA,3,2,1104,Residential,Mon May 19 00:00:00 EDT 2008,123000,38.50372,-121.4906573128 VIA GRANDE,SACRAMENTO,95825,CA,2,1,972,Residential,Mon May 19 00:00:00 EDT 2008,125000,38.598321,-121.391612847 BELGRADE WAY,SACRAMENTO,95833,CA,4,2,1390,Residential,Mon May 19 00:00:00 EDT 2008,125573,38.617173,-121.4825417741 MILLDALE CIR,ELVERTA,95626,CA,4,2,1354,Residential,Mon May 19 00:00:00 EDT 2008,126714,38.705834,-121.439199013 CASALS ST,SACRAMENTO,95826,CA,2,1,795,Condo,Mon May 19 00:00:00 EDT 2008,126960,38.557045,-121.37167227 MAHAN CT Unit 1,ROSEVILLE,95678,CA,2,1,780,Condo,Mon May 19 00:00:00 EDT 2008,127000,38.749723,-121.270087349 FLETCHER FARM DR,SACRAMENTO,95828,CA,4,2,1587,Residential,Mon May 19 00:00:00 EDT 2008,127500,38.49069,-121.3826197226 LARCHMONT DR,NORTH HIGHLANDS,95660,CA,3,2,1209,Residential,Mon May 19 00:00:00 EDT 2008,130000,38.699269,-121.3763344114 35TH AVE,SACRAMENTO,95824,CA,2,1,1139,Residential,Mon May 19 00:00:00 EDT 2008,133105,38.520941,-121.459355617 M ST,RIO LINDA,95673,CA,2,2,1690,Residential,Mon May 19 00:00:00 EDT 2008,136500,38.691104,-121.4518327032 FAIR OAKS BLVD,CARMICHAEL,95608,CA,3,2,1245,Condo,Mon May 19 00:00:00 EDT 2008,139500,38.628563,-121.3282972421 SANTINA WAY,ELVERTA,95626,CA,3,2,1416,Residential,Mon May 19 00:00:00 EDT 2008,140000,38.71865,-121.4077632368 CRAIG AVE,SACRAMENTO,95832,CA,3,2,1300,Residential,Mon May 19 00:00:00 EDT 2008,140800,38.47807,-121.481142123 AMANDA WAY,SACRAMENTO,95822,CA,3,2,1120,Residential,Mon May 19 00:00:00 EDT 2008,145000,38.484896,-121.4869487620 DARLA WAY,SACRAMENTO,95828,CA,4,2,1590,Residential,Mon May 19 00:00:00 EDT 2008,147000,38.478502,-121.4035178344 FIELDPOPPY CIR,SACRAMENTO,95828,CA,3,2,1407,Residential,Mon May 19 00:00:00 EDT 2008,149600,38.479083,-121.4007023624 20TH AVE,SACRAMENTO,95820,CA,5,2,1516,Residential,Mon May 19 00:00:00 EDT 2008,150000,38.534508,-121.46790710001 WOODCREEK OAKS BLVD Unit 1415,ROSEVILLE,95747,CA,2,2,0,Condo,Mon May 19 00:00:00 EDT 2008,150000,38.795529,-121.3288192848 PROVO WAY,SACRAMENTO,95822,CA,3,2,1646,Residential,Mon May 19 00:00:00 EDT 2008,150000,38.489759,-121.4747546045 EHRHARDT AVE,SACRAMENTO,95823,CA,3,2,1676,Residential,Mon May 19 00:00:00 EDT 2008,155000,38.457157,-121.4330651223 LAMBERTON CIR,SACRAMENTO,95838,CA,3,2,1370,Residential,Mon May 19 00:00:00 EDT 2008,155435,38.646677,-121.4375731223 LAMBERTON CIR,SACRAMENTO,95838,CA,3,2,1370,Residential,Mon May 19 00:00:00 EDT 2008,155500,38.646677,-121.4375736000 BIRCHGLADE WAY,CITRUS HEIGHTS,95621,CA,4,2,1351,Residential,Mon May 19 00:00:00 EDT 2008,158000,38.70166,-121.3232497204 THOMAS DR,NORTH HIGHLANDS,95660,CA,3,2,1152,Residential,Mon May 19 00:00:00 EDT 2008,158000,38.697898,-121.3776878363 LANGTREE WAY,SACRAMENTO,95823,CA,3,2,1452,Residential,Mon May 19 00:00:00 EDT 2008,160000,38.45356,-121.4359591675 VERNON ST Unit 8,ROSEVILLE,95678,CA,2,1,990,Residential,Mon May 19 00:00:00 EDT 2008,160000,38.734136,-121.2996396632 IBEX WOODS CT,CITRUS HEIGHTS,95621,CA,2,2,1162,Residential,Mon May 19 00:00:00 EDT 2008,164000,38.720868,-121.309855117 EVCAR WAY,RIO LINDA,95673,CA,3,2,1182,Residential,Mon May 19 00:00:00 EDT 2008,164000,38.687659,-121.46336485 LAGUNA MIRAGE LN,ELK GROVE,95758,CA,2,2,1112,Residential,Mon May 19 00:00:00 EDT 2008,165000,38.42465,-121.430137746 MOOSE CREEK WAY,GALT,95632,CA,3,2,1100,Residential,Mon May 19 00:00:00 EDT 2008,167000,38.283085,-121.3020718306 CURLEW CT,CITRUS HEIGHTS,95621,CA,4,2,1280,Residential,Mon May 19 00:00:00 EDT 2008,167293,38.715781,-121.2985198306 CURLEW CT,CITRUS HEIGHTS,95621,CA,4,2,1280,Residential,Mon May 19 00:00:00 EDT 2008,167293,38.715781,-121.2985195217 ARGO WAY,SACRAMENTO,95820,CA,3,1,1039,Residential,Mon May 19 00:00:00 EDT 2008,168000,38.52774,-121.4336697108 HEATHER TREE DR,SACRAMENTO,95842,CA,3,2,1159,Residential,Mon May 19 00:00:00 EDT 2008,170000,38.695677,-121.360222956 DAVENPORT WAY,SACRAMENTO,95833,CA,4,2,1917,Residential,Mon May 19 00:00:00 EDT 2008,170000,38.620687,-121.48261910062 LINCOLN VILLAGE DR,SACRAMENTO,95827,CA,3,2,1520,Residential,Mon May 19 00:00:00 EDT 2008,170000,38.564,-121.320023332 PALIN AVE,GALT,95632,CA,3,2,1204,Residential,Mon May 19 00:00:00 EDT 2008,174000,38.260467,-121.3026364649 FREEWAY CIR,SACRAMENTO,95841,CA,3,2,1120,Residential,Mon May 19 00:00:00 EDT 2008,178000,38.658734,-121.3571968593 DERLIN WAY,SACRAMENTO,95823,CA,3,2,1436,Residential,Mon May 19 00:00:00 EDT 2008,180000,38.447585,-121.4266279273 PREMIER WAY,SACRAMENTO,95826,CA,3,2,1451,Residential,Mon May 19 00:00:00 EDT 2008,180000,38.55992,-121.3525398032 DUSENBERG CT,SACRAMENTO,95828,CA,4,2,1638,Residential,Mon May 19 00:00:00 EDT 2008,180000,38.466499,-121.3811197110 STELLA LN Unit 15,CARMICHAEL,95608,CA,2,2,1000,Condo,Mon May 19 00:00:00 EDT 2008,182000,38.637396,-121.3000551786 PIEDMONT WAY,ROSEVILLE,95661,CA,3,1,1152,Residential,Mon May 19 00:00:00 EDT 2008,188325,38.72748,-121.2565371347 HIDALGO CIR,ROSEVILLE,95747,CA,3,2,1154,Residential,Mon May 19 00:00:00 EDT 2008,191500,38.747878,-121.311279212 CAPPUCINO WAY,SACRAMENTO,95838,CA,3,2,1353,Residential,Mon May 19 00:00:00 EDT 2008,192000,38.657811,-121.4653275938 WOODBRIAR WAY,CITRUS HEIGHTS,95621,CA,3,2,1329,Residential,Mon May 19 00:00:00 EDT 2008,192700,38.706152,-121.3253993801 WILDROSE WAY,SACRAMENTO,95826,CA,3,1,1356,Residential,Mon May 19 00:00:00 EDT 2008,195000,38.544368,-121.369979508 SAMUEL WAY,SACRAMENTO,95838,CA,3,2,1505,Residential,Mon May 19 00:00:00 EDT 2008,197654,38.645689,-121.4527666128 CARL SANDBURG CIR,SACRAMENTO,95842,CA,3,1,1009,Residential,Mon May 19 00:00:00 EDT 2008,198000,38.681541,-121.3556161 KENNELFORD CIR,SACRAMENTO,95823,CA,3,2,1144,Residential,Mon May 19 00:00:00 EDT 2008,200345,38.46452,-121.427606909 SINGINGWOOD RD,SACRAMENTO,95864,CA,2,1,930,Residential,Mon May 19 00:00:00 EDT 2008,203000,38.581471,-121.388396671 FOXWOOD CT,SACRAMENTO,95841,CA,4,2,1766,Residential,Mon May 19 00:00:00 EDT 2008,207000,38.687943,-121.3288838165 AYN RAND CT,SACRAMENTO,95828,CA,4,3,1940,Residential,Mon May 19 00:00:00 EDT 2008,208000,38.468639,-121.4032659474 VILLAGE TREE DR,ELK GROVE,95758,CA,4,2,1776,Residential,Mon May 19 00:00:00 EDT 2008,210000,38.413947,-121.4082767213 CALVIN DR,CITRUS HEIGHTS,95621,CA,3,1,1258,Residential,Mon May 19 00:00:00 EDT 2008,212000,38.698154,-121.2983758167 DERBY PARK CT,SACRAMENTO,95828,CA,4,2,1872,Residential,Mon May 19 00:00:00 EDT 2008,213675,38.460492,-121.3733796344 LAGUNA MIRAGE LN,ELK GROVE,95758,CA,2,2,1112,Residential,Mon May 19 00:00:00 EDT 2008,213697,38.423963,-121.4288752945 RED HAWK WAY,SACRAMENTO,95833,CA,4,2,1856,Residential,Mon May 19 00:00:00 EDT 2008,215000,38.619675,-121.4969033228 I ST,SACRAMENTO,95816,CA,4,3,1939,Residential,Mon May 19 00:00:00 EDT 2008,215000,38.573844,-121.462839308 ATKINSON ST,ROSEVILLE,95678,CA,3,1,998,Residential,Mon May 19 00:00:00 EDT 2008,215100,38.746794,-121.29971624 HOVEY WAY,ROSEVILLE,95678,CA,3,2,1758,Residential,Mon May 19 00:00:00 EDT 2008,217500,38.756149,-121.306479110 COPPER LEAF WAY,SACRAMENTO,95838,CA,3,2,2142,Residential,Mon May 19 00:00:00 EDT 2008,218000,38.658466,-121.4606617535 ALMA VISTA WAY,SACRAMENTO,95831,CA,2,1,950,Residential,Mon May 19 00:00:00 EDT 2008,220000,38.48403,-121.5076417423 WILSALL CT,ELK GROVE,95758,CA,4,3,1739,Residential,Mon May 19 00:00:00 EDT 2008,221000,38.417026,-121.4168218629 VIA ALTA WAY,ELK GROVE,95624,CA,3,2,1516,Residential,Mon May 19 00:00:00 EDT 2008,222900,38.398245,-121.3806153318 DAVIDSON DR,ANTELOPE,95843,CA,3,1,988,Residential,Mon May 19 00:00:00 EDT 2008,223139,38.705753,-121.388917913 COBDEN CT,GALT,95632,CA,4,2,1555,Residential,Mon May 19 00:00:00 EDT 2008,225500,38.282001,-121.2959024419 79TH ST,SACRAMENTO,95820,CA,3,2,1212,Residential,Mon May 19 00:00:00 EDT 2008,228327,38.534827,-121.4125453012 SPOONWOOD WAY,SACRAMENTO,95833,CA,4,2,1871,Residential,Mon May 19 00:00:00 EDT 2008,230000,38.62478,-121.5234748728 CRYSTAL RIVER WAY,SACRAMENTO,95828,CA,3,2,1302,Residential,Mon May 19 00:00:00 EDT 2008,230000,38.47547,-121.3800554709 AMBER LN Unit 1,SACRAMENTO,95841,CA,2,1,756,Condo,Mon May 19 00:00:00 EDT 2008,230522,38.657789,-121.3549944508 OLD DAIRY DR,ANTELOPE,95843,CA,4,3,2026,Residential,Mon May 19 00:00:00 EDT 2008,231200,38.72286,-121.358939312 RIVER ISLE WAY,SACRAMENTO,95831,CA,3,2,1375,Residential,Mon May 19 00:00:00 EDT 2008,232000,38.49026,-121.550527301 OLIVADI WAY,SACRAMENTO,95834,CA,2,2,1250,Condo,Mon May 19 00:00:00 EDT 2008,232500,38.644406,-121.5490495636 25TH ST,SACRAMENTO,95822,CA,3,1,1058,Residential,Mon May 19 00:00:00 EDT 2008,233641,38.523828,-121.4811398721 SPRUCE RIDGE WAY,ANTELOPE,95843,CA,3,2,1187,Residential,Mon May 19 00:00:00 EDT 2008,234000,38.727657,-121.3910287461 WINDBRIDGE DR,SACRAMENTO,95831,CA,2,2,1324,Residential,Mon May 19 00:00:00 EDT 2008,234500,38.48797,-121.5302298101 LEMON COVE CT,SACRAMENTO,95828,CA,4,3,1936,Residential,Mon May 19 00:00:00 EDT 2008,235000,38.462981,-121.40828810949 SCOTSMAN WAY,RANCHO CORDOVA,95670,CA,5,4,2382,Multi-Family,Mon May 19 00:00:00 EDT 2008,236000,38.603686,-121.277844617 WILLOW CREEK DR,FOLSOM,95630,CA,3,2,1427,Residential,Mon May 19 00:00:00 EDT 2008,236073,38.679626,-121.1426093301 PARK DR Unit 1914,SACRAMENTO,95835,CA,3,2,1678,Condo,Mon May 19 00:00:00 EDT 2008,238000,38.665296,-121.531993709 CIMMARON CT,GALT,95632,CA,4,2,1798,Residential,Mon May 19 00:00:00 EDT 2008,238861,38.277177,-121.3037473305 RIO ROCA CT,ANTELOPE,95843,CA,4,3,2652,Residential,Mon May 19 00:00:00 EDT 2008,239700,38.725079,-121.3876989080 BEDROCK CT,SACRAMENTO,95829,CA,4,2,1816,Residential,Mon May 19 00:00:00 EDT 2008,240000,38.456939,-121.362965100 TOURMALINE CIR,SACRAMENTO,95834,CA,5,3,3076,Residential,Mon May 19 00:00:00 EDT 2008,240000,38.63437,-121.5107796411 RED BIRCH WAY,ELK GROVE,95758,CA,4,2,1844,Residential,Mon May 19 00:00:00 EDT 2008,241000,38.43461,-121.4293164867 LAGUNA DR,SACRAMENTO,95823,CA,3,2,1306,Residential,Mon May 19 00:00:00 EDT 2008,245000,38.46179,-121.4453713662 RIVER DR,SACRAMENTO,95833,CA,4,3,2447,Residential,Mon May 19 00:00:00 EDT 2008,246000,38.604969,-121.542556943 WOLFGRAM WAY,SACRAMENTO,95828,CA,4,2,1176,Residential,Mon May 19 00:00:00 EDT 2008,247234,38.489215,-121.41954677 RINETTI WAY,RIO LINDA,95673,CA,4,2,1182,Residential,Mon May 19 00:00:00 EDT 2008,247480,38.687021,-121.4631511316 I ST,RIO LINDA,95673,CA,3,1,1160,Residential,Mon May 19 00:00:00 EDT 2008,249862,38.683674,-121.4352042130 CATHERWOOD WAY,SACRAMENTO,95835,CA,3,2,1424,Residential,Mon May 19 00:00:00 EDT 2008,251000,38.675506,-121.5109878304 JUGLANS DR,ORANGEVALE,95662,CA,4,2,1574,Residential,Mon May 19 00:00:00 EDT 2008,252155,38.691829,-121.2490335308 MARBURY WAY,ANTELOPE,95843,CA,3,2,1830,Residential,Mon May 19 00:00:00 EDT 2008,254172,38.710221,-121.3417079182 LAKEMONT DR,ELK GROVE,95624,CA,4,2,1724,Residential,Mon May 19 00:00:00 EDT 2008,258000,38.451353,-121.3587762231 COUNTRY VILLA CT,AUBURN,95603,CA,2,2,1255,Condo,Mon May 19 00:00:00 EDT 2008,260000,38.931671,-121.0978628491 CRYSTAL WALK CIR,ELK GROVE,95758,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,261000,38.416916,-121.407554361 MAHONIA CIR,SACRAMENTO,95835,CA,4,3,2175,Residential,Mon May 19 00:00:00 EDT 2008,261000,38.676172,-121.5097613427 LA CADENA WAY,SACRAMENTO,95835,CA,4,2,1904,Residential,Mon May 19 00:00:00 EDT 2008,261000,38.681194,-121.537351955 BIG SUR CT,EL DORADO HILLS,95762,CA,4,2,1808,Residential,Mon May 19 00:00:00 EDT 2008,262500,38.664347,-121.07652911826 DIONYSUS WAY,RANCHO CORDOVA,95742,CA,4,2,2711,Residential,Mon May 19 00:00:00 EDT 2008,266000,38.551046,-121.2394115847 DEL CAMPO LN,CARMICHAEL,95608,CA,3,1,1713,Residential,Mon May 19 00:00:00 EDT 2008,266000,38.671995,-121.3243395635 FOXVIEW WAY,ELK GROVE,95757,CA,3,2,1457,Residential,Mon May 19 00:00:00 EDT 2008,270000,38.395256,-121.43824910372 VIA CINTA CT,ELK GROVE,95757,CA,4,3,2724,Residential,Mon May 19 00:00:00 EDT 2008,274425,38.380089,-121.4281866286 LONETREE BLVD,ROCKLIN,95765,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,274500,38.805036,-121.2936087744 SOUTHBREEZE DR,SACRAMENTO,95828,CA,3,2,1468,Residential,Mon May 19 00:00:00 EDT 2008,275336,38.476932,-121.3783492242 ABLE WAY,SACRAMENTO,95835,CA,4,3,2550,Residential,Mon May 19 00:00:00 EDT 2008,277980,38.666074,-121.5097431042 STARBROOK DR,GALT,95632,CA,4,2,1928,Residential,Mon May 19 00:00:00 EDT 2008,280000,38.285611,-121.2930631219 G ST,SACRAMENTO,95814,CA,3,3,1922,Residential,Mon May 19 00:00:00 EDT 2008,284686,38.582818,-121.4890966220 OPUS CT,CITRUS HEIGHTS,95621,CA,3,2,1343,Residential,Mon May 19 00:00:00 EDT 2008,284893,38.715853,-121.3170955419 HAVENHURST CIR,ROCKLIN,95677,CA,3,2,1510,Residential,Mon May 19 00:00:00 EDT 2008,285000,38.786746,-121.209957220 OLD AIRPORT RD,AUBURN,95603,CA,2,2,960,Multi-Family,Mon May 19 00:00:00 EDT 2008,285000,38.939802,-121.0545754622 MEYER WAY,CARMICHAEL,95608,CA,4,2,1559,Residential,Mon May 19 00:00:00 EDT 2008,285000,38.64913,-121.3106674885 SUMMIT VIEW DR,EL DORADO,95623,CA,3,2,1624,Residential,Mon May 19 00:00:00 EDT 2008,289000,38.673285,-120.87917626 JEANROSS CT,SACRAMENTO,95832,CA,5,3,2992,Residential,Mon May 19 00:00:00 EDT 2008,295000,38.473162,-121.4910854800 MAPLEPLAIN AVE,ELK GROVE,95758,CA,4,2,2109,Residential,Mon May 19 00:00:00 EDT 2008,296000,38.432848,-121.44923710629 BASIE WAY,RANCHO CORDOVA,95670,CA,4,2,1524,Residential,Mon May 19 00:00:00 EDT 2008,296056,38.579,-121.2926278612 WILLOW GROVE WAY,SACRAMENTO,95828,CA,3,2,1248,Residential,Mon May 19 00:00:00 EDT 2008,297359,38.464994,-121.38696262 DE FER CIR,SACRAMENTO,95823,CA,4,2,1876,Residential,Mon May 19 00:00:00 EDT 2008,299940,38.49254,-121.4633162513 OLD KENMARE RD,LINCOLN,95648,CA,5,3,0,Residential,Mon May 19 00:00:00 EDT 2008,304000,38.847396,-121.2595863253 ABOTO WAY,RANCHO CORDOVA,95670,CA,4,3,1851,Residential,Mon May 19 00:00:00 EDT 2008,305000,38.57727,-121.2855913072 VILLAGE PLAZA DR,ROSEVILLE,95747,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,307000,38.773094,-121.365905251 CHANGO CIR,SACRAMENTO,95835,CA,4,2,2218,Residential,Mon May 19 00:00:00 EDT 2008,311328,38.68237,-121.5391478205 WEYBURN CT,SACRAMENTO,95828,CA,3,2,1394,Residential,Mon May 19 00:00:00 EDT 2008,313138,38.47316,-121.4038938788 LA MARGARITA WAY,SACRAMENTO,95828,CA,3,2,1410,Residential,Mon May 19 00:00:00 EDT 2008,316630,38.468185,-121.3756945912 DEEPDALE WAY,ELK GROVE,95758,CA,5,3,3468,Residential,Mon May 19 00:00:00 EDT 2008,320000,38.439565,-121.4366064712 PISMO BEACH DR,ANTELOPE,95843,CA,5,3,2346,Residential,Mon May 19 00:00:00 EDT 2008,320000,38.707705,-121.3541534741 PACIFIC PARK DR,ANTELOPE,95843,CA,5,3,2347,Residential,Mon May 19 00:00:00 EDT 2008,325000,38.709299,-121.353056310 GROTH CIR,SACRAMENTO,95834,CA,4,2,1659,Residential,Mon May 19 00:00:00 EDT 2008,328578,38.638764,-121.5318276121 WILD FOX CT,ELK GROVE,95757,CA,3,3,2442,Residential,Mon May 19 00:00:00 EDT 2008,331000,38.406758,-121.43166912241 CANYONLANDS DR,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,331500,38.557293,-121.21761129 COOL FOUNTAIN CT,SACRAMENTO,95833,CA,4,2,2155,Residential,Mon May 19 00:00:00 EDT 2008,340000,38.606906,-121.54132907 RIO ROBLES AVE,SACRAMENTO,95838,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,344755,38.664765,-121.4450068909 BILLFISH WAY,SACRAMENTO,95828,CA,3,2,1810,Residential,Mon May 19 00:00:00 EDT 2008,345746,38.475433,-121.3725846232 GUS WAY,ELK GROVE,95757,CA,4,2,2789,Residential,Mon May 19 00:00:00 EDT 2008,351000,38.388129,-121.43117200 OAKWILDE ST,GALT,95632,CA,4,2,1606,Residential,Mon May 19 00:00:00 EDT 2008,353767,38.2535,-121.318121033 PARK STREAM DR,GALT,95632,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,355000,38.287785,-121.289903200 ALLAIRE CIR,SACRAMENTO,95835,CA,4,2,2166,Residential,Mon May 19 00:00:00 EDT 2008,356035,38.68318,-121.534841322 SUTTER WALK,SACRAMENTO,95816,CA,0,0,0,Condo,Mon May 19 00:00:00 EDT 2008,360000,38.53805,-121.50475479 NICKMAN WAY,SACRAMENTO,95835,CA,4,2,1871,Residential,Mon May 19 00:00:00 EDT 2008,360552,38.672966,-121.5027482103 BURBERRY WAY,SACRAMENTO,95835,CA,3,2,1800,Residential,Mon May 19 00:00:00 EDT 2008,362305,38.67342,-121.5085422450 SAN JOSE WAY,SACRAMENTO,95817,CA,3,1,1683,Residential,Mon May 19 00:00:00 EDT 2008,365000,38.553596,-121.4594837641 ROSEHALL DR,ROSEVILLE,95678,CA,3,2,0,Residential,Mon May 19 00:00:00 EDT 2008,367554,38.791617,-121.2861471336 LAYSAN TEAL DR,ROSEVILLE,95747,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,368500,38.796121,-121.3199632802 BLACK OAK DR,ROCKLIN,95765,CA,2,2,1596,Residential,Mon May 19 00:00:00 EDT 2008,370000,38.837006,-121.2320242113 FALL TRAIL CT,PLACERVILLE,95667,CA,4,2,0,Residential,Mon May 19 00:00:00 EDT 2008,371086,38.733155,-120.74803910112 LAMBEAU CT,ELK GROVE,95757,CA,3,2,1179,Residential,Mon May 19 00:00:00 EDT 2008,378000,38.390328,-121.4480226313 CASTRO VERDE WAY,ELK GROVE,95757,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,383000,38.381102,-121.429013622 CURTIS DR,SACRAMENTO,95818,CA,3,1,1639,Residential,Mon May 19 00:00:00 EDT 2008,388000,38.541735,-121.48009811817 OPAL RIDGE WAY,RANCHO CORDOVA,95742,CA,5,3,3281,Residential,Mon May 19 00:00:00 EDT 2008,395100,38.551083,-121.237476170 LAGOMARSINO WAY,SACRAMENTO,95819,CA,3,2,1697,Residential,Mon May 19 00:00:00 EDT 2008,400000,38.574894,-121.4358062743 DEAKIN PL,EL DORADO HILLS,95762,CA,3,2,0,Residential,Mon May 19 00:00:00 EDT 2008,400000,38.69288,-121.0735513361 ALDER CANYON WAY,ANTELOPE,95843,CA,4,3,2085,Residential,Mon May 19 00:00:00 EDT 2008,408431,38.727649,-121.3856562148 RANCH VIEW DR,ROCKLIN,95765,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,413000,38.837455,-121.289337398 LINDLEY DR,SACRAMENTO,95815,CA,4,2,1744,Multi-Family,Mon May 19 00:00:00 EDT 2008,416767,38.622359,-121.4575823013 BRIDLEWOOD DR,EL DORADO HILLS,95762,CA,4,3,0,Residential,Mon May 19 00:00:00 EDT 2008,420000,38.675519,-121.015862169 BAURER CIR,FOLSOM,95630,CA,4,3,1939,Residential,Mon May 19 00:00:00 EDT 2008,423000,38.66695,-121.1207292809 LOON CT,CAMERON PARK,95682,CA,4,2,0,Residential,Mon May 19 00:00:00 EDT 2008,423000,38.687072,-121.0047291315 KONDOS AVE,SACRAMENTO,95814,CA,2,3,1788,Residential,Mon May 19 00:00:00 EDT 2008,427500,38.571943,-121.4921064966 CHARTER RD,ROCKLIN,95765,CA,3,2,1691,Residential,Mon May 19 00:00:00 EDT 2008,430922,38.82553,-121.2546989516 LAGUNA LAKE WAY,ELK GROVE,95758,CA,4,2,2002,Residential,Mon May 19 00:00:00 EDT 2008,445000,38.411258,-121.4313485201 BLOSSOM RANCH DR,ELK GROVE,95757,CA,4,4,4303,Residential,Mon May 19 00:00:00 EDT 2008,450000,38.399436,-121.4440413027 PALMATE WAY,SACRAMENTO,95834,CA,5,3,4246,Residential,Mon May 19 00:00:00 EDT 2008,452000,38.628955,-121.529269500 WINCHESTER CT,ROSEVILLE,95661,CA,3,2,2274,Residential,Mon May 19 00:00:00 EDT 2008,470000,38.73988,-121.2489295746 GELSTON WAY,EL DORADO HILLS,95762,CA,4,3,0,Residential,Mon May 19 00:00:00 EDT 2008,471000,38.677015,-121.0340836935 ELM TREE LN,ORANGEVALE,95662,CA,4,4,3056,Residential,Mon May 19 00:00:00 EDT 2008,475000,38.693041,-121.232949605 GOLF COURSE LN,ELK GROVE,95758,CA,3,3,2503,Residential,Mon May 19 00:00:00 EDT 2008,484500,38.409689,-121.446059719 BAYWOOD CT,EL DORADO HILLS,95762,CA,5,3,0,Residential,Mon May 19 00:00:00 EDT 2008,487500,38.647598,-121.0778015954 TANUS CIR,ROCKLIN,95677,CA,3,3,0,Residential,Mon May 19 00:00:00 EDT 2008,488750,38.777585,-121.2036100 CHELSEA CT,FOLSOM,95630,CA,3,2,1905,Residential,Mon May 19 00:00:00 EDT 2008,500000,38.69435,-121.1772591500 ORANGE HILL LN,PENRYN,95663,CA,3,2,1320,Residential,Mon May 19 00:00:00 EDT 2008,506688,38.862708,-121.162092408 KIRKWOOD CT,LINCOLN,95648,CA,2,2,0,Residential,Mon May 19 00:00:00 EDT 2008,512000,38.861615,-121.268691732 TUSCAN GROVE CIR,ROSEVILLE,95747,CA,5,3,0,Residential,Mon May 19 00:00:00 EDT 2008,520000,38.796683,-121.3425552049 EMPIRE MINE CIR,GOLD RIVER,95670,CA,4,2,3037,Residential,Mon May 19 00:00:00 EDT 2008,528000,38.629299,-121.2490219360 MAGOS RD,WILTON,95693,CA,5,2,3741,Residential,Mon May 19 00:00:00 EDT 2008,579093,38.416809,-121.240628104 CATLIN CT,FOLSOM,95630,CA,4,3,2660,Residential,Mon May 19 00:00:00 EDT 2008,636000,38.684459,-121.1459354734 GIBBONS DR,CARMICHAEL,95608,CA,4,3,3357,Residential,Mon May 19 00:00:00 EDT 2008,668365,38.63558,-121.3536394629 DORCHESTER LN,GRANITE BAY,95746,CA,5,3,2896,Residential,Mon May 19 00:00:00 EDT 2008,676200,38.723545,-121.2160252400 COUNTRYSIDE DR,PLACERVILLE,95667,CA,3,2,2025,Residential,Mon May 19 00:00:00 EDT 2008,677048,38.737452,-120.91096312901 FURLONG DR,WILTON,95693,CA,5,3,3788,Residential,Mon May 19 00:00:00 EDT 2008,691659,38.413535,-121.1882116222 CALLE MONTALVO CIR,GRANITE BAY,95746,CA,5,3,3670,Residential,Mon May 19 00:00:00 EDT 2008,760000,38.779435,-121.14667620 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885327,-121.28941224 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885132,-121.28940528 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884936,-121.28939732 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884741,-121.2893936 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884599,-121.28940640 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884535,-121.28961944 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88459,-121.28983548 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884667,-121.28989652 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88478,-121.28991168 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885236,-121.28992872 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88535,-121.28992676 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885464,-121.28992280 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885578,-121.28991984 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885692,-121.28991588 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885806,-121.28991192 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88592,-121.28990896 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886024,-121.289859100 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886091,-121.289744434 1ST ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88653,-121.2894063 E ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884692,-121.29028811 E ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884879,-121.29025719 E ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885017,-121.29026227 E ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885173,-121.2902735 E ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885328,-121.29027543 E ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885483,-121.29027751 E ST,LINCOLN,95648,CA,4,2,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885638,-121.29027959 E ST,LINCOLN,95648,CA,3,2,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885794,-121.29028175 E ST,LINCOLN,95648,CA,3,2,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886104,-121.29028563 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885093,-121.289932398 1ST ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88653,-121.288952386 1ST ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886528,-121.288869374 1ST ST,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886525,-121.288787116 CRYSTALWOOD WAY,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886282,-121.289586108 CRYSTALWOOD WAY,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886282,-121.289646100 CRYSTALWOOD WAY,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886282,-121.28970655 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884865,-121.28992251 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884752,-121.28990747 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884638,-121.28989343 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884568,-121.28978439 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884546,-121.28956235 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884645,-121.28939731 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.88479,-121.28939227 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.884985,-121.28939923 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885181,-121.28940619 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885376,-121.28941415 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885571,-121.2894217 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885962,-121.2894367 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.885962,-121.2894363 CRYSTALWOOD CIR,LINCOLN,95648,CA,0,0,0,Residential,Mon May 19 00:00:00 EDT 2008,4897,38.886093,-121.2895848208 WOODYARD WAY,CITRUS HEIGHTS,95621,CA,3,2,1166,Residential,Fri May 16 00:00:00 EDT 2008,30000,38.715322,-121.314787113 RINETTI WAY,RIO LINDA,95673,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,30000,38.687172,-121.46393315 LOORZ CT,SACRAMENTO,95823,CA,2,1,838,Residential,Fri May 16 00:00:00 EDT 2008,55422,38.471646,-121.4351585805 DOTMAR WAY,NORTH HIGHLANDS,95660,CA,2,1,904,Residential,Fri May 16 00:00:00 EDT 2008,63000,38.672642,-121.3803432332 CAMBRIDGE ST,SACRAMENTO,95815,CA,2,1,1032,Residential,Fri May 16 00:00:00 EDT 2008,65000,38.608085,-121.4496513812 BELDEN ST,SACRAMENTO,95838,CA,2,1,904,Residential,Fri May 16 00:00:00 EDT 2008,65000,38.636833,-121.441643348 40TH ST,SACRAMENTO,95817,CA,2,1,1080,Residential,Fri May 16 00:00:00 EDT 2008,65000,38.544162,-121.460652127 QUASAR CIR,SACRAMENTO,95822,CA,2,2,990,Residential,Fri May 16 00:00:00 EDT 2008,66500,38.493504,-121.4753043812 CYPRESS ST,SACRAMENTO,95838,CA,2,1,900,Residential,Fri May 16 00:00:00 EDT 2008,71000,38.636877,-121.4449485821 64TH ST,SACRAMENTO,95824,CA,2,1,861,Residential,Fri May 16 00:00:00 EDT 2008,75000,38.521202,-121.4281468248 CENTER PKWY,SACRAMENTO,95823,CA,2,1,906,Condo,Fri May 16 00:00:00 EDT 2008,77000,38.459002,-121.4287941171 SONOMA AVE,SACRAMENTO,95815,CA,2,1,1011,Residential,Fri May 16 00:00:00 EDT 2008,85000,38.6238,-121.4398724250 ARDWELL WAY,SACRAMENTO,95823,CA,3,2,1089,Residential,Fri May 16 00:00:00 EDT 2008,95625,38.466938,-121.4556313104 CLAY ST,SACRAMENTO,95815,CA,2,1,832,Residential,Fri May 16 00:00:00 EDT 2008,96140,38.62391,-121.4392086063 LAND PARK DR,SACRAMENTO,95822,CA,2,1,800,Condo,Fri May 16 00:00:00 EDT 2008,104250,38.517029,-121.5138094738 OAKHOLLOW DR,SACRAMENTO,95842,CA,4,2,1292,Residential,Fri May 16 00:00:00 EDT 2008,105000,38.679598,-121.3560351401 STERLING ST,SACRAMENTO,95822,CA,2,1,810,Residential,Fri May 16 00:00:00 EDT 2008,108000,38.520319,-121.5047273715 DIDCOT CIR,SACRAMENTO,95838,CA,4,2,1064,Residential,Fri May 16 00:00:00 EDT 2008,109000,38.635232,-121.4600982426 RASHAWN DR,RANCHO CORDOVA,95670,CA,2,1,911,Residential,Fri May 16 00:00:00 EDT 2008,115000,38.610852,-121.2732784800 WESTLAKE PKWY Unit 410,SACRAMENTO,95835,CA,1,1,846,Condo,Fri May 16 00:00:00 EDT 2008,115000,38.658812,-121.5423453409 VIRGO ST,SACRAMENTO,95827,CA,3,2,1320,Residential,Fri May 16 00:00:00 EDT 2008,115500,38.563402,-121.3277471110 PINEDALE AVE,SACRAMENTO,95838,CA,3,2,1410,Residential,Fri May 16 00:00:00 EDT 2008,115620,38.660173,-121.4402162361 LA LOMA DR,RANCHO CORDOVA,95670,CA,3,2,1115,Residential,Fri May 16 00:00:00 EDT 2008,116000,38.59368,-121.3160541455 64TH AVE,SACRAMENTO,95822,CA,3,2,1169,Residential,Fri May 16 00:00:00 EDT 2008,122000,38.492177,-121.5033927328 SPRINGMAN ST,SACRAMENTO,95822,CA,3,2,1164,Residential,Fri May 16 00:00:00 EDT 2008,122500,38.491991,-121.477636119 SAINT MARIE CIR,SACRAMENTO,95823,CA,4,2,1341,Residential,Fri May 16 00:00:00 EDT 2008,123000,38.481454,-121.44664412 COSTA BRASE CT,SACRAMENTO,95838,CA,3,2,1219,Residential,Fri May 16 00:00:00 EDT 2008,124000,38.655554,-121.4642756813 SCOTER WAY,SACRAMENTO,95842,CA,4,2,1127,Residential,Fri May 16 00:00:00 EDT 2008,124000,38.69043,-121.3610356548 GRAYLOCK LN,NORTH HIGHLANDS,95660,CA,3,2,1272,Residential,Fri May 16 00:00:00 EDT 2008,124413,38.686061,-121.3699491630 GLIDDEN AVE,SACRAMENTO,95822,CA,4,2,1253,Residential,Fri May 16 00:00:00 EDT 2008,125000,38.482717,-121.4996837825 DALEWOODS WAY,SACRAMENTO,95828,CA,3,2,1120,Residential,Fri May 16 00:00:00 EDT 2008,130000,38.477297,-121.4115134073 TRESLER AVE,NORTH HIGHLANDS,95660,CA,2,2,1118,Residential,Fri May 16 00:00:00 EDT 2008,131750,38.659016,-121.3704574288 DYMIC WAY,SACRAMENTO,95838,CA,4,3,1890,Residential,Fri May 16 00:00:00 EDT 2008,137721,38.646541,-121.4411391158 SAN IGNACIO WAY,SACRAMENTO,95833,CA,3,2,1260,Residential,Fri May 16 00:00:00 EDT 2008,137760,38.623045,-121.4862794904 J PKWY,SACRAMENTO,95823,CA,3,2,1400,Residential,Fri May 16 00:00:00 EDT 2008,138000,38.487297,-121.442952931 HOWE AVE,SACRAMENTO,95821,CA,3,1,1264,Residential,Fri May 16 00:00:00 EDT 2008,140000,38.619012,-121.4153295531 JANSEN DR,SACRAMENTO,95824,CA,3,1,1060,Residential,Fri May 16 00:00:00 EDT 2008,145000,38.522015,-121.4387137836 ORCHARD WOODS CIR,SACRAMENTO,95828,CA,2,2,1132,Residential,Fri May 16 00:00:00 EDT 2008,145000,38.47955,-121.4108674055 DEERBROOK DR,SACRAMENTO,95823,CA,3,2,1466,Residential,Fri May 16 00:00:00 EDT 2008,150000,38.472117,-121.4595899937 BURLINE ST,SACRAMENTO,95827,CA,3,2,1092,Residential,Fri May 16 00:00:00 EDT 2008,150000,38.559641,-121.323166948 MIRADOR WAY,SACRAMENTO,95828,CA,4,2,1628,Residential,Fri May 16 00:00:00 EDT 2008,151000,38.493484,-121.420354909 RUGER CT,SACRAMENTO,95842,CA,3,2,960,Residential,Fri May 16 00:00:00 EDT 2008,155000,38.68747,-121.3492347204 KERSTEN ST,CITRUS HEIGHTS,95621,CA,3,2,1075,Residential,Fri May 16 00:00:00 EDT 2008,155800,38.695863,-121.3008143150 ROSEMONT DR,SACRAMENTO,95826,CA,3,2,1428,Residential,Fri May 16 00:00:00 EDT 2008,156142,38.554927,-121.355218200 STEINBECK WAY,SACRAMENTO,95828,CA,4,2,1358,Residential,Fri May 16 00:00:00 EDT 2008,158000,38.474854,-121.4047268198 STEVENSON AVE,SACRAMENTO,95828,CA,6,4,2475,Multi-Family,Fri May 16 00:00:00 EDT 2008,159900,38.465271,-121.404266824 OLIVE TREE WAY,CITRUS HEIGHTS,95610,CA,3,2,1410,Residential,Fri May 16 00:00:00 EDT 2008,160000,38.689239,-121.2677373536 SUN MAIDEN WAY,ANTELOPE,95843,CA,3,2,1711,Residential,Fri May 16 00:00:00 EDT 2008,161500,38.70968,-121.3823284517 OLYMPIAD WAY,SACRAMENTO,95826,CA,4,2,1483,Residential,Fri May 16 00:00:00 EDT 2008,161600,38.536751,-121.359154925 COBDEN CT,GALT,95632,CA,3,2,1140,Residential,Fri May 16 00:00:00 EDT 2008,162000,38.282047,-121.2958128225 SCOTTSDALE DR,SACRAMENTO,95828,CA,4,2,1549,Residential,Fri May 16 00:00:00 EDT 2008,165000,38.487864,-121.4024768758 LEMAS RD,SACRAMENTO,95828,CA,3,2,1410,Residential,Fri May 16 00:00:00 EDT 2008,165000,38.467487,-121.3770556121 ALPINESPRING WAY,ELK GROVE,95758,CA,3,2,1240,Residential,Fri May 16 00:00:00 EDT 2008,167293,38.434075,-121.4326235937 YORK GLEN WAY,SACRAMENTO,95842,CA,5,2,1712,Residential,Fri May 16 00:00:00 EDT 2008,168000,38.677003,-121.3544546417 SUNNYFIELD WAY,SACRAMENTO,95823,CA,4,2,1580,Residential,Fri May 16 00:00:00 EDT 2008,168000,38.449153,-121.4282724008 GREY LIVERY WAY,ANTELOPE,95843,CA,3,2,1669,Residential,Fri May 16 00:00:00 EDT 2008,168750,38.71846,-121.3708628920 ROSETTA CIR,SACRAMENTO,95826,CA,3,1,1029,Residential,Fri May 16 00:00:00 EDT 2008,168750,38.544374,-121.3708748300 LICHEN DR,CITRUS HEIGHTS,95621,CA,3,1,1103,Residential,Fri May 16 00:00:00 EDT 2008,170000,38.71641,-121.3062398884 AMBERJACK WAY,SACRAMENTO,95828,CA,3,2,2161,Residential,Fri May 16 00:00:00 EDT 2008,170250,38.479343,-121.3725534480 VALLEY HI DR,SACRAMENTO,95823,CA,3,2,1650,Residential,Fri May 16 00:00:00 EDT 2008,173000,38.466781,-121.4509552250 FOREBAY RD,POLLOCK PINES,95726,CA,3,1,1320,Residential,Fri May 16 00:00:00 EDT 2008,175000,38.77491,-120.5975993529 FABERGE WAY,SACRAMENTO,95826,CA,3,2,1200,Residential,Fri May 16 00:00:00 EDT 2008,176095,38.553275,-121.3462181792 DAWNELLE WAY,SACRAMENTO,95835,CA,3,2,1170,Residential,Fri May 16 00:00:00 EDT 2008,176250,38.68271,-121.5016977800 TABARE CT,CITRUS HEIGHTS,95621,CA,3,2,1199,Residential,Fri May 16 00:00:00 EDT 2008,178000,38.70799,-121.3029798531 HERMITAGE WAY,SACRAMENTO,95823,CA,4,2,1695,Residential,Fri May 16 00:00:00 EDT 2008,179000,38.448452,-121.4285362421 BERRYWOOD DR,RANCHO CORDOVA,95670,CA,3,2,1157,Residential,Fri May 16 00:00:00 EDT 2008,180000,38.60868,-121.278491005 MORENO WAY,SACRAMENTO,95838,CA,3,2,1410,Residential,Fri May 16 00:00:00 EDT 2008,180000,38.646206,-121.4427671675 VERNON ST Unit 24,ROSEVILLE,95678,CA,3,2,1174,Residential,Fri May 16 00:00:00 EDT 2008,180000,38.734136,-121.29963924 WINDCHIME CT,SACRAMENTO,95823,CA,3,2,1593,Residential,Fri May 16 00:00:00 EDT 2008,181000,38.44617,-121.427824540 HARLING CT,RIO LINDA,95673,CA,3,2,1093,Residential,Fri May 16 00:00:00 EDT 2008,182000,38.68279,-121.4535091207 CRESCENDO DR,ROSEVILLE,95678,CA,3,2,1770,Residential,Fri May 16 00:00:00 EDT 2008,182587,38.72446,-121.2928297577 EDDYLEE WAY,SACRAMENTO,95822,CA,4,2,1436,Residential,Fri May 16 00:00:00 EDT 2008,185074,38.48291,-121.4915098369 FOPPIANO WAY,SACRAMENTO,95829,CA,3,2,1124,Residential,Fri May 16 00:00:00 EDT 2008,185833,38.453839,-121.3579198817 SAWTELLE WAY,SACRAMENTO,95826,CA,4,2,1139,Residential,Fri May 16 00:00:00 EDT 2008,186785,38.565322,-121.3742511910 BONAVISTA WAY,SACRAMENTO,95832,CA,3,2,1638,Residential,Fri May 16 00:00:00 EDT 2008,187000,38.476048,-121.4949618 TIDE CT,SACRAMENTO,95833,CA,3,2,1328,Residential,Fri May 16 00:00:00 EDT 2008,188335,38.609864,-121.4923048952 ROCKY CREEK CT,ELK GROVE,95758,CA,3,2,1273,Residential,Fri May 16 00:00:00 EDT 2008,190000,38.431239,-121.44001435 EXCHANGE ST,SACRAMENTO,95838,CA,3,1,1082,Residential,Fri May 16 00:00:00 EDT 2008,190000,38.659434,-121.45523610105 MONTE VALLO CT,SACRAMENTO,95827,CA,4,2,1578,Residential,Fri May 16 00:00:00 EDT 2008,190000,38.573917,-121.3169163930 ANNABELLE AVE,ROSEVILLE,95661,CA,2,1,796,Residential,Fri May 16 00:00:00 EDT 2008,190000,38.727609,-121.2264944854 TANGERINE AVE,SACRAMENTO,95823,CA,3,2,1386,Residential,Fri May 16 00:00:00 EDT 2008,191250,38.478239,-121.4463262909 SHAWN WAY,RANCHO CORDOVA,95670,CA,3,2,1452,Residential,Fri May 16 00:00:00 EDT 2008,193000,38.589925,-121.2990594290 BLACKFORD WAY,SACRAMENTO,95823,CA,3,2,1513,Residential,Fri May 16 00:00:00 EDT 2008,193500,38.470494,-121.4541625890 TT TRAK,FORESTHILL,95631,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,194818,39.020808,-120.8215187015 WOODSIDE DR,SACRAMENTO,95842,CA,4,2,1578,Residential,Fri May 16 00:00:00 EDT 2008,195000,38.693071,-121.3323656019 CHESHIRE WAY,CITRUS HEIGHTS,95610,CA,4,3,1736,Residential,Fri May 16 00:00:00 EDT 2008,195000,38.676437,-121.2791653330 VILLAGE CT,CAMERON PARK,95682,CA,2,2,0,Residential,Fri May 16 00:00:00 EDT 2008,195000,38.690504,-120.9962452561 VERNA WAY,SACRAMENTO,95821,CA,3,1,1473,Residential,Fri May 16 00:00:00 EDT 2008,195000,38.611055,-121.3699643522 22ND AVE,SACRAMENTO,95820,CA,3,1,1150,Residential,Fri May 16 00:00:00 EDT 2008,198000,38.532725,-121.4690782880 CANDIDO DR,SACRAMENTO,95833,CA,3,2,1127,Residential,Fri May 16 00:00:00 EDT 2008,199900,38.618019,-121.5102156908 PIN OAK CT,FAIR OAKS,95628,CA,3,1,1144,Residential,Fri May 16 00:00:00 EDT 2008,200000,38.66424,-121.3036755733 ANGELINA AVE,CARMICHAEL,95608,CA,3,1,972,Residential,Fri May 16 00:00:00 EDT 2008,201000,38.622634,-121.3308467849 BONNY DOWNS WAY,ELK GROVE,95758,CA,4,2,2306,Residential,Fri May 16 00:00:00 EDT 2008,204918,38.42139,-121.4113398716 LONGSPUR WAY,ANTELOPE,95843,CA,3,2,1479,Residential,Fri May 16 00:00:00 EDT 2008,205000,38.724083,-121.35846320 EL DORADO ST,EL DORADO,95623,CA,2,1,1040,Residential,Fri May 16 00:00:00 EDT 2008,205000,38.678758,-120.8441182328 DOROTHY JUNE WAY,SACRAMENTO,95838,CA,3,2,1430,Residential,Fri May 16 00:00:00 EDT 2008,205878,38.641727,-121.4127031986 DANVERS WAY,SACRAMENTO,95832,CA,4,2,1800,Residential,Fri May 16 00:00:00 EDT 2008,207000,38.47723,-121.4925687901 GAZELLE TRAIL WAY,ANTELOPE,95843,CA,4,2,1953,Residential,Fri May 16 00:00:00 EDT 2008,207744,38.71174,-121.3426756080 BRIDGECROSS DR,SACRAMENTO,95835,CA,3,2,1120,Residential,Fri May 16 00:00:00 EDT 2008,209000,38.681952,-121.50500920 GROTH CIR,SACRAMENTO,95834,CA,3,2,1232,Residential,Fri May 16 00:00:00 EDT 2008,210000,38.640807,-121.5335221900 DANBROOK DR,SACRAMENTO,95835,CA,1,1,984,Condo,Fri May 16 00:00:00 EDT 2008,210944,38.668433,-121.503471140 VENTO CT,ROSEVILLE,95678,CA,3,2,0,Condo,Fri May 16 00:00:00 EDT 2008,212500,38.793533,-121.2896858442 KEUSMAN ST,ELK GROVE,95758,CA,4,2,2329,Residential,Fri May 16 00:00:00 EDT 2008,213750,38.449651,-121.4147049552 SUNLIGHT LN,ELK GROVE,95758,CA,3,2,1351,Residential,Fri May 16 00:00:00 EDT 2008,215000,38.410561,-121.4043272733 YUMA CT,CAMERON PARK,95682,CA,2,2,0,Residential,Fri May 16 00:00:00 EDT 2008,215000,38.691215,-120.9949491407 TIFFANY CIR,ROSEVILLE,95661,CA,4,1,1376,Residential,Fri May 16 00:00:00 EDT 2008,215000,38.736392,-121.2664636 CRESTVIEW DR,DIAMOND SPRINGS,95619,CA,3,2,1300,Residential,Fri May 16 00:00:00 EDT 2008,216033,38.688255,-120.8102351528 HESKET WAY,SACRAMENTO,95825,CA,4,2,1566,Residential,Fri May 16 00:00:00 EDT 2008,220000,38.593598,-121.4036372327 32ND ST,SACRAMENTO,95817,CA,2,1,1115,Residential,Fri May 16 00:00:00 EDT 2008,220000,38.557433,-121.470341833 2ND AVE,SACRAMENTO,95818,CA,2,1,1032,Residential,Fri May 16 00:00:00 EDT 2008,220000,38.556818,-121.4906697252 CARRIAGE DR,CITRUS HEIGHTS,95621,CA,4,2,1419,Residential,Fri May 16 00:00:00 EDT 2008,220000,38.698058,-121.2948939815 PASO FINO WAY,ELK GROVE,95757,CA,3,2,1261,Residential,Fri May 16 00:00:00 EDT 2008,220000,38.404888,-121.4439985532 ENGLE RD,CARMICHAEL,95608,CA,2,2,1637,Residential,Fri May 16 00:00:00 EDT 2008,220702,38.63173,-121.3352861139 CLINTON RD,SACRAMENTO,95825,CA,4,2,1776,Multi-Family,Fri May 16 00:00:00 EDT 2008,221250,38.585291,-121.4068249176 SAGE GLEN WAY,ELK GROVE,95758,CA,3,2,1338,Residential,Fri May 16 00:00:00 EDT 2008,222000,38.423913,-121.4391159967 HATHERTON WAY,ELK GROVE,95757,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,222500,38.3052,-121.40339264 BOULDER RIVER WAY,ELK GROVE,95624,CA,5,2,2254,Residential,Fri May 16 00:00:00 EDT 2008,222750,38.421713,-121.345191320 GROTH CIR,SACRAMENTO,95834,CA,3,2,1441,Residential,Fri May 16 00:00:00 EDT 2008,225000,38.638882,-121.531883137 GUNNISON AVE,SACRAMENTO,95838,CA,4,2,1991,Residential,Fri May 16 00:00:00 EDT 2008,225000,38.650729,-121.4664838209 RIVALLO WAY,SACRAMENTO,95829,CA,4,3,2126,Residential,Fri May 16 00:00:00 EDT 2008,228750,38.459524,-121.35018637 PERIWINKLE CIR,ELK GROVE,95624,CA,3,2,1094,Residential,Fri May 16 00:00:00 EDT 2008,229000,38.443184,-121.3643883425 MEADOW WAY,ROCKLIN,95677,CA,3,2,1462,Residential,Fri May 16 00:00:00 EDT 2008,230095,38.798028,-121.235364107 JARVIS CIR,SACRAMENTO,95834,CA,5,3,2258,Residential,Fri May 16 00:00:00 EDT 2008,232500,38.639891,-121.5376032319 THORES ST,RANCHO CORDOVA,95670,CA,3,2,1074,Residential,Fri May 16 00:00:00 EDT 2008,233000,38.59675,-121.3127168935 MOUNTAIN HOME CT,ELK GROVE,95624,CA,4,2,2111,Residential,Fri May 16 00:00:00 EDT 2008,233500,38.38751,-121.3702762566 SERENATA WAY,SACRAMENTO,95835,CA,3,2,1686,Residential,Fri May 16 00:00:00 EDT 2008,239000,38.671556,-121.5209164085 COUNTRY DR,ANTELOPE,95843,CA,4,3,1915,Residential,Fri May 16 00:00:00 EDT 2008,240000,38.706209,-121.3695099297 TROUT WAY,ELK GROVE,95624,CA,4,2,2367,Residential,Fri May 16 00:00:00 EDT 2008,240000,38.420637,-121.3757987 ARCHIBALD CT,SACRAMENTO,95823,CA,3,2,1962,Residential,Fri May 16 00:00:00 EDT 2008,240971,38.443305,-121.43529611130 EEL RIVER CT,RANCHO CORDOVA,95670,CA,2,2,1406,Residential,Fri May 16 00:00:00 EDT 2008,242000,38.625932,-121.2715178323 REDBANK WAY,SACRAMENTO,95829,CA,3,2,1789,Residential,Fri May 16 00:00:00 EDT 2008,243450,38.455753,-121.34927316 BRONCO CREEK CT,SACRAMENTO,95835,CA,4,2,1876,Residential,Fri May 16 00:00:00 EDT 2008,243500,38.674226,-121.5254978316 NORTHAM DR,ANTELOPE,95843,CA,3,2,1235,Residential,Fri May 16 00:00:00 EDT 2008,246544,38.720767,-121.3766784240 WINJE DR,ANTELOPE,95843,CA,4,2,2504,Residential,Fri May 16 00:00:00 EDT 2008,246750,38.70884,-121.3595593569 SODA WAY,SACRAMENTO,95834,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,247000,38.631139,-121.5018795118 ROBANDER ST,CARMICHAEL,95608,CA,3,2,1676,Residential,Fri May 16 00:00:00 EDT 2008,247000,38.657267,-121.3103525976 KYLENCH CT,CITRUS HEIGHTS,95621,CA,3,2,1367,Residential,Fri May 16 00:00:00 EDT 2008,249000,38.708966,-121.324679247 DELAIR WAY,ELK GROVE,95758,CA,4,3,1899,Residential,Fri May 16 00:00:00 EDT 2008,249000,38.422241,-121.4580229054 DESCENDANT DR,ELK GROVE,95758,CA,3,2,1636,Residential,Fri May 16 00:00:00 EDT 2008,250000,38.428852,-121.4156283450 WHITNOR CT,SACRAMENTO,95821,CA,3,2,1828,Residential,Fri May 16 00:00:00 EDT 2008,250000,38.627698,-121.3696986288 LONETREE BLVD,ROCKLIN,95765,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,250000,38.804993,-121.2936099355 MATADOR WAY,SACRAMENTO,95826,CA,4,2,1438,Residential,Fri May 16 00:00:00 EDT 2008,252000,38.555633,-121.3506918671 SUMMER SUN WAY,ELK GROVE,95624,CA,3,2,1451,Residential,Fri May 16 00:00:00 EDT 2008,255000,38.442845,-121.3732721890 GENEVA PL,SACRAMENTO,95825,CA,3,1,1520,Residential,Fri May 16 00:00:00 EDT 2008,255000,38.599449,-121.4003051813 AVENIDA MARTINA,ROSEVILLE,95747,CA,3,2,1506,Residential,Fri May 16 00:00:00 EDT 2008,255000,38.776649,-121.339589191 BARNHART CIR,SACRAMENTO,95835,CA,4,2,2605,Residential,Fri May 16 00:00:00 EDT 2008,257200,38.675594,-121.5158786221 GREEN TOP WAY,ORANGEVALE,95662,CA,3,2,1196,Residential,Fri May 16 00:00:00 EDT 2008,260000,38.679409,-121.2191072298 PRIMROSE LN,LINCOLN,95648,CA,3,2,1621,Residential,Fri May 16 00:00:00 EDT 2008,260000,38.89918,-121.3225145635 LOS PUEBLOS WAY,SACRAMENTO,95835,CA,3,2,1811,Residential,Fri May 16 00:00:00 EDT 2008,263500,38.679191,-121.53762210165 LOFTON WAY,ELK GROVE,95757,CA,3,2,1540,Residential,Fri May 16 00:00:00 EDT 2008,266510,38.387708,-121.4365221251 GREEN RAVINE DR,LINCOLN,95648,CA,4,2,0,Residential,Fri May 16 00:00:00 EDT 2008,267750,38.88156,-121.3013436001 SHOO FLY RD,PLACERVILLE,95667,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,270000,38.813546,-120.8092543040 PARKHAM DR,ROSEVILLE,95747,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,271000,38.770835,-121.3669962674 TAM O SHANTER DR,EL DORADO HILLS,95762,CA,4,2,0,Residential,Fri May 16 00:00:00 EDT 2008,272700,38.695801,-121.0792166007 MARYBELLE LN,SHINGLE SPRINGS,95682,CA,0,0,0,Unkown,Fri May 16 00:00:00 EDT 2008,275000,38.64347,-120.8881839949 NESTLING CIR,ELK GROVE,95757,CA,3,2,1543,Residential,Fri May 16 00:00:00 EDT 2008,275000,38.397455,-121.4683912915 HOLDREGE WAY,SACRAMENTO,95835,CA,5,3,2494,Residential,Fri May 16 00:00:00 EDT 2008,276000,38.663728,-121.5258332678 BRIARTON DR,LINCOLN,95648,CA,3,2,1650,Residential,Fri May 16 00:00:00 EDT 2008,276500,38.844116,-121.274806294 SPARROW DR,GALT,95632,CA,4,3,2214,Residential,Fri May 16 00:00:00 EDT 2008,278000,38.258976,-121.3212662987 DIORITE WAY,SACRAMENTO,95835,CA,5,3,2280,Residential,Fri May 16 00:00:00 EDT 2008,279000,38.667332,-121.5282766326 APPIAN WAY,CARMICHAEL,95608,CA,3,2,1443,Residential,Fri May 16 00:00:00 EDT 2008,280000,38.66266,-121.3168586905 COBALT WAY,CITRUS HEIGHTS,95621,CA,4,2,1582,Residential,Fri May 16 00:00:00 EDT 2008,280000,38.691393,-121.3052158986 HAFLINGER WAY,ELK GROVE,95757,CA,3,2,1857,Residential,Fri May 16 00:00:00 EDT 2008,285000,38.397923,-121.4502192916 BABSON DR,ELK GROVE,95758,CA,3,2,1735,Residential,Fri May 16 00:00:00 EDT 2008,288000,38.417191,-121.47389710133 NEBBIOLO CT,ELK GROVE,95624,CA,4,3,2096,Residential,Fri May 16 00:00:00 EDT 2008,289000,38.391085,-121.3472311103 COMMONS DR,SACRAMENTO,95825,CA,3,2,1720,Residential,Fri May 16 00:00:00 EDT 2008,290000,38.567865,-121.4106994636 TEAL BAY CT,ANTELOPE,95843,CA,4,2,2160,Residential,Fri May 16 00:00:00 EDT 2008,290000,38.704554,-121.3547531524 YOUNGS AVE,SACRAMENTO,95838,CA,4,2,1382,Residential,Fri May 16 00:00:00 EDT 2008,293996,38.644927,-121.43054865 CONRAD CT,PLACERVILLE,95667,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,294000,38.729993,-120.8024588463 TERRACOTTA CT,ELK GROVE,95624,CA,4,2,1721,Residential,Fri May 16 00:00:00 EDT 2008,294173,38.450548,-121.3630025747 KING RD,LOOMIS,95650,CA,4,2,1328,Residential,Fri May 16 00:00:00 EDT 2008,295000,38.825096,-121.1984328253 KEEGAN WAY,ELK GROVE,95624,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,298000,38.446286,-121.4008179204 TROUT WAY,ELK GROVE,95624,CA,4,2,1982,Residential,Fri May 16 00:00:00 EDT 2008,298000,38.422221,-121.3757991828 2ND AVE,SACRAMENTO,95818,CA,2,1,1144,Residential,Fri May 16 00:00:00 EDT 2008,299000,38.556844,-121.4907691113 COMMONS DR,SACRAMENTO,95825,CA,2,2,1623,Residential,Fri May 16 00:00:00 EDT 2008,300000,38.567795,-121.4107032341 BIG STRIKE TRL,COOL,95614,CA,3,2,1457,Residential,Fri May 16 00:00:00 EDT 2008,300000,38.905927,-120.9751699452 RED SPRUCE WAY,ELK GROVE,95624,CA,6,3,2555,Residential,Fri May 16 00:00:00 EDT 2008,300000,38.404505,-121.3469385776 TERRACE DR,ROCKLIN,95765,CA,3,2,1577,Residential,Fri May 16 00:00:00 EDT 2008,300567,38.800539,-121.2609795908 MCLEAN DR,ELK GROVE,95757,CA,5,3,2592,Residential,Fri May 16 00:00:00 EDT 2008,303000,38.38912,-121.4343898215 PEREGRINE WAY,CITRUS HEIGHTS,95610,CA,3,2,1401,Residential,Fri May 16 00:00:00 EDT 2008,305000,38.715493,-121.262931104 HILLSDALE LN,LINCOLN,95648,CA,4,2,0,Residential,Fri May 16 00:00:00 EDT 2008,306000,38.865017,-121.323022949 PANAMA AVE,CARMICHAEL,95608,CA,3,2,1502,Residential,Fri May 16 00:00:00 EDT 2008,310000,38.618369,-121.3261871356 HARTLEY WAY,FOLSOM,95630,CA,3,2,1327,Residential,Fri May 16 00:00:00 EDT 2008,310000,38.651617,-121.131674633 HANISCH DR,ROSEVILLE,95678,CA,4,3,1800,Residential,Fri May 16 00:00:00 EDT 2008,310000,38.76349,-121.27588163 ANGEL ISLAND CIR,SACRAMENTO,95831,CA,4,2,2169,Residential,Fri May 16 00:00:00 EDT 2008,311518,38.490408,-121.5476641571 WILD OAK LN,LINCOLN,95648,CA,5,3,2457,Residential,Fri May 16 00:00:00 EDT 2008,312000,38.844144,-121.2741745222 COPPER SUNSET WAY,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,313000,38.529181,-121.2247555601 SPINDRIFT LN,ORANGEVALE,95662,CA,4,2,2004,Residential,Fri May 16 00:00:00 EDT 2008,315000,38.668289,-121.192316652 FIFTEEN MILE DR,ROSEVILLE,95678,CA,4,3,2212,Residential,Fri May 16 00:00:00 EDT 2008,315000,38.775872,-121.2988647921 DOE TRAIL WAY,ANTELOPE,95843,CA,5,3,3134,Residential,Fri May 16 00:00:00 EDT 2008,315000,38.711927,-121.3436084204 LUSK DR,SACRAMENTO,95864,CA,3,2,1360,Residential,Fri May 16 00:00:00 EDT 2008,315000,38.606569,-121.3684245321 DELTA DR,ROCKLIN,95765,CA,4,2,0,Residential,Fri May 16 00:00:00 EDT 2008,315000,38.815493,-121.2629085608 ROSEDALE WAY,SACRAMENTO,95822,CA,3,2,1276,Residential,Fri May 16 00:00:00 EDT 2008,320000,38.525115,-121.5186893372 BERETANIA WAY,SACRAMENTO,95834,CA,4,3,2962,Residential,Fri May 16 00:00:00 EDT 2008,322000,38.64977,-121.534482422 STEFANIE DR,ROCKLIN,95765,CA,4,2,1888,Residential,Fri May 16 00:00:00 EDT 2008,325000,38.82273,-121.264243232 PARKHAM DR,ROSEVILLE,95747,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,325500,38.772821,-121.364821448 ELMWOOD CT,ROSEVILLE,95678,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,326951,38.771917,-121.3044391214 DAWNWOOD DR,GALT,95632,CA,3,2,1548,Residential,Fri May 16 00:00:00 EDT 2008,328370,38.290119,-121.2860231440 EMERALD LN,LINCOLN,95648,CA,2,2,0,Residential,Fri May 16 00:00:00 EDT 2008,330000,38.861864,-121.2674783349 CORVINA DR,RANCHO CORDOVA,95670,CA,4,3,2109,Residential,Fri May 16 00:00:00 EDT 2008,330000,38.580545,-121.27901610254 JULIANA WAY,SACRAMENTO,95827,CA,4,2,2484,Residential,Fri May 16 00:00:00 EDT 2008,331200,38.56803,-121.309966149 OPUS CIR,SACRAMENTO,95834,CA,4,3,2258,Residential,Fri May 16 00:00:00 EDT 2008,332000,38.6354,-121.53499580 REGENCY PARK CIR,SACRAMENTO,95835,CA,3,3,2212,Residential,Fri May 16 00:00:00 EDT 2008,334000,38.674864,-121.49585544 CAMAS CT,ORANGEVALE,95662,CA,3,2,1616,Residential,Fri May 16 00:00:00 EDT 2008,335000,38.667703,-121.2094565102 ARCHCREST WAY,SACRAMENTO,95835,CA,4,2,2372,Residential,Fri May 16 00:00:00 EDT 2008,341000,38.66841,-121.4946395725 BALFOR RD,ROCKLIN,95765,CA,5,3,2606,Residential,Fri May 16 00:00:00 EDT 2008,346375,38.807816,-121.2700087697 ROSEHALL DR,ROSEVILLE,95678,CA,5,3,0,Residential,Fri May 16 00:00:00 EDT 2008,347225,38.79218,-121.285954821 HUTSON WAY,ELK GROVE,95757,CA,5,3,2877,Residential,Fri May 16 00:00:00 EDT 2008,349000,38.386239,-121.4481594509 WINJE DR,ANTELOPE,95843,CA,3,2,2960,Residential,Fri May 16 00:00:00 EDT 2008,350000,38.709513,-121.3593571965 LAURELHURST LN,LINCOLN,95648,CA,2,2,0,Residential,Fri May 16 00:00:00 EDT 2008,350000,38.853869,-121.2717426709 ROSE BRIDGE DR,ROSEVILLE,95678,CA,3,2,2172,Residential,Fri May 16 00:00:00 EDT 2008,350000,38.792461,-121.275711281 SPYGLASS HL,ROSEVILLE,95678,CA,3,2,2100,Condo,Fri May 16 00:00:00 EDT 2008,350000,38.762153,-121.2834517709 RIVER VILLAGE DR,SACRAMENTO,95831,CA,3,2,1795,Residential,Fri May 16 00:00:00 EDT 2008,351000,38.483212,-121.540194165 BRISBANE CIR,EL DORADO HILLS,95762,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,356200,38.686067,-121.073413506 BEDFORD CT,ROSEVILLE,95661,CA,4,2,2295,Residential,Fri May 16 00:00:00 EDT 2008,360000,38.733985,-121.2367669048 PINTO CANYON WAY,ROSEVILLE,95747,CA,4,3,2577,Residential,Fri May 16 00:00:00 EDT 2008,367463,38.792493,-121.3318992274 IVY BRIDGE DR,ROSEVILLE,95747,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,375000,38.778561,-121.36200814004 WALNUT AVE,WALNUT GROVE,95690,CA,3,1,1727,Residential,Fri May 16 00:00:00 EDT 2008,380000,38.247659,-121.5151296905 FRANKFORT CT,ELK GROVE,95758,CA,3,2,1485,Residential,Fri May 16 00:00:00 EDT 2008,380578,38.429139,-121.4234443621 WINTUN DR,CARMICHAEL,95608,CA,3,2,1655,Residential,Fri May 16 00:00:00 EDT 2008,386222,38.629929,-121.323086201 KIRKLAND CT,LINCOLN,95648,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,389000,38.867125,-121.31908512075 APPLESBURY CT,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,390000,38.5357,-121.22491975 SIDESADDLE WAY,ROSEVILLE,95661,CA,3,2,2049,Residential,Fri May 16 00:00:00 EDT 2008,395500,38.737872,-121.2490255420 ALMOND FALLS WAY,RANCHO CORDOVA,95742,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,396000,38.527384,-121.2335319677 PILLITERI CT,ELK GROVE,95757,CA,5,3,2875,Residential,Fri May 16 00:00:00 EDT 2008,397000,38.405571,-121.4451861515 EL CAMINO VERDE DR,LINCOLN,95648,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,400000,38.904869,-121.32075556 PLATT CIR,EL DORADO HILLS,95762,CA,4,2,2199,Residential,Fri May 16 00:00:00 EDT 2008,400000,38.656299,-121.0797831792 DIAMOND WOODS CIR,ROSEVILLE,95747,CA,4,3,0,Residential,Fri May 16 00:00:00 EDT 2008,412500,38.808581,-121.327851124 PERKINS WAY,SACRAMENTO,95818,CA,2,1,1304,Residential,Fri May 16 00:00:00 EDT 2008,413500,38.551611,-121.5044374748 SALEM WAY,CARMICHAEL,95608,CA,3,2,2334,Residential,Fri May 16 00:00:00 EDT 2008,415000,38.634111,-121.3533761484 RADCLIFFE WAY,AUBURN,95603,CA,4,3,2278,Residential,Fri May 16 00:00:00 EDT 2008,420454,38.935579,-121.07901851 AIKEN WAY,SACRAMENTO,95819,CA,3,1,1493,Residential,Fri May 16 00:00:00 EDT 2008,425000,38.579326,-121.442522818 KNOLLWOOD DR,CAMERON PARK,95682,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,425000,38.669805,-120.9990071536 STONEY CROSS LN,LINCOLN,95648,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,433500,38.860007,-121.310946509 CASTILLIAN CT,ROSEVILLE,95747,CA,5,3,0,Residential,Fri May 16 00:00:00 EDT 2008,438000,38.804773,-121.341195700 HUNTER PL,FOLSOM,95630,CA,5,3,2787,Residential,Fri May 16 00:00:00 EDT 2008,441000,38.66051,-121.1636891240 FAY CIR,SACRAMENTO,95831,CA,5,3,2824,Residential,Fri May 16 00:00:00 EDT 2008,445000,38.506371,-121.5144561113 SANDWICK WAY,FOLSOM,95630,CA,4,3,3261,Residential,Fri May 16 00:00:00 EDT 2008,446000,38.673882,-121.1050773108 DELWOOD WAY,SACRAMENTO,95821,CA,4,2,2053,Residential,Fri May 16 00:00:00 EDT 2008,450000,38.621566,-121.3708823212 CORNICHE LN,ROSEVILLE,95661,CA,4,3,2379,Residential,Fri May 16 00:00:00 EDT 2008,455000,38.750577,-121.2327682159 BECKETT DR,EL DORADO HILLS,95762,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,460000,38.680092,-121.0364674320 FOUR SEASONS RD,PLACERVILLE,95667,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,475000,38.690867,-120.6936416401 MARSHALL RD,GARDEN VALLEY,95633,CA,3,2,0,Residential,Fri May 16 00:00:00 EDT 2008,490000,38.84255,-120.87542089 BECKETT DR,EL DORADO HILLS,95762,CA,4,2,0,Residential,Fri May 16 00:00:00 EDT 2008,493000,38.681778,-121.0358386196 EDGEHILL DR,EL DORADO HILLS,95762,CA,5,4,0,Residential,Fri May 16 00:00:00 EDT 2008,508000,38.676131,-121.038931200 HILLSFORD CT,ROSEVILLE,95747,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,511000,38.780051,-121.3787188217 PLUMERIA AVE,FAIR OAKS,95628,CA,3,2,3173,Residential,Fri May 16 00:00:00 EDT 2008,525000,38.650735,-121.2586284841 VILLAGE GREEN DR,EL DORADO HILLS,95762,CA,4,3,0,Residential,Fri May 16 00:00:00 EDT 2008,533000,38.664066,-121.0567353863 LAS PASAS WAY,SACRAMENTO,95864,CA,3,1,1348,Residential,Fri May 16 00:00:00 EDT 2008,545000,38.588936,-121.373606820 DANA CT,AUBURN,95603,CA,4,3,0,Residential,Fri May 16 00:00:00 EDT 2008,560000,38.865246,-121.0948691165 37TH ST,SACRAMENTO,95816,CA,2,1,1252,Residential,Fri May 16 00:00:00 EDT 2008,575000,38.568438,-121.457854203 CASCADE FALLS DR,FOLSOM,95630,CA,4,3,3229,Residential,Fri May 16 00:00:00 EDT 2008,575000,38.703962,-121.18719880 IZILDA CT,SACRAMENTO,95829,CA,5,4,3863,Residential,Fri May 16 00:00:00 EDT 2008,598695,38.45326,-121.325731800 AVONDALE DR,ROSEVILLE,95747,CA,5,3,0,Residential,Fri May 16 00:00:00 EDT 2008,600000,38.798448,-121.3440544620 BROMWICH CT,ROCKLIN,95677,CA,4,3,0,Residential,Fri May 16 00:00:00 EDT 2008,600000,38.772672,-121.220232620 KESWICK CT,GRANITE BAY,95746,CA,4,3,2356,Residential,Fri May 16 00:00:00 EDT 2008,600000,38.732096,-121.2191424478 GREENBRAE RD,ROCKLIN,95677,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,600000,38.781134,-121.2228018432 BRIGGS DR,ROSEVILLE,95747,CA,5,3,3579,Residential,Fri May 16 00:00:00 EDT 2008,610000,38.78861,-121.339495200 CRADLE MOUNTAIN CT,EL DORADO HILLS,95762,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,622500,38.6478,-121.03092065 IMPRESSIONIST WAY,EL DORADO HILLS,95762,CA,0,0,0,Residential,Fri May 16 00:00:00 EDT 2008,680000,38.682961,-121.0332532982 ABERDEEN LN,EL DORADO HILLS,95762,CA,4,3,0,Residential,Fri May 16 00:00:00 EDT 2008,879000,38.706692,-121.0588699401 BARREL RACER CT,WILTON,95693,CA,4,3,4400,Residential,Fri May 16 00:00:00 EDT 2008,884790,38.415298,-121.1948583720 VISTA DE MADERA,LINCOLN,95648,CA,3,3,0,Residential,Fri May 16 00:00:00 EDT 2008,1551,38.851645,-121.23174214151 INDIO DR,SLOUGHHOUSE,95683,CA,3,4,5822,Residential,Fri May 16 00:00:00 EDT 2008,2000,38.490447,-121.1293377401 TOULON LN,SACRAMENTO,95828,CA,4,2,1512,Residential,Thu May 15 00:00:00 EDT 2008,56950,38.488628,-121.3877599127 NEWHALL DR Unit 34,SACRAMENTO,95826,CA,1,1,611,Condo,Thu May 15 00:00:00 EDT 2008,60000,38.542419,-121.3599045937 BAMFORD DR,SACRAMENTO,95823,CA,2,1,876,Residential,Thu May 15 00:00:00 EDT 2008,61000,38.471139,-121.4322555672 HILLSDALE BLVD,SACRAMENTO,95842,CA,2,1,933,Condo,Thu May 15 00:00:00 EDT 2008,62000,38.670467,-121.3597993920 39TH ST,SACRAMENTO,95820,CA,2,1,864,Residential,Thu May 15 00:00:00 EDT 2008,68566,38.539213,-121.46393701 JESSIE AVE,SACRAMENTO,95838,CA,2,1,1011,Residential,Thu May 15 00:00:00 EDT 2008,70000,38.643978,-121.44956283 ARCADE BLVD,SACRAMENTO,95815,CA,4,2,1158,Residential,Thu May 15 00:00:00 EDT 2008,80000,38.618716,-121.466327601 REGGINALD WAY,SACRAMENTO,95838,CA,3,2,1092,Residential,Thu May 15 00:00:00 EDT 2008,85500,38.64472,-121.452228550 DEL VERDE CIR,SACRAMENTO,95833,CA,2,1,956,Condo,Thu May 15 00:00:00 EDT 2008,92000,38.627147,-121.5007994113 DAYSTAR CT,SACRAMENTO,95824,CA,2,2,1139,Residential,Thu May 15 00:00:00 EDT 2008,93600,38.520469,-121.4586067374 TISDALE WAY,SACRAMENTO,95822,CA,3,1,1058,Residential,Thu May 15 00:00:00 EDT 2008,95000,38.488238,-121.4725613348 RIO LINDA BLVD,SACRAMENTO,95838,CA,3,2,1040,Residential,Thu May 15 00:00:00 EDT 2008,97750,38.628842,-121.4461273935 LIMESTONE WAY,SACRAMENTO,95823,CA,3,2,1354,Residential,Thu May 15 00:00:00 EDT 2008,104000,38.484374,-121.4631576208 GRATTAN WAY,NORTH HIGHLANDS,95660,CA,3,1,1051,Residential,Thu May 15 00:00:00 EDT 2008,105000,38.679279,-121.376615739 E WOODSIDE LN Unit E,SACRAMENTO,95825,CA,1,1,682,Condo,Thu May 15 00:00:00 EDT 2008,107666,38.578675,-121.4099514225 46TH AVE,SACRAMENTO,95824,CA,3,1,1161,Residential,Thu May 15 00:00:00 EDT 2008,109000,38.511893,-121.4576761434 BELL AVE,SACRAMENTO,95838,CA,3,1,1004,Residential,Thu May 15 00:00:00 EDT 2008,110000,38.647398,-121.4329145628 GEORGIA DR,NORTH HIGHLANDS,95660,CA,3,1,1229,Residential,Thu May 15 00:00:00 EDT 2008,110000,38.669587,-121.3798797629 BETH ST,SACRAMENTO,95832,CA,3,2,1249,Residential,Thu May 15 00:00:00 EDT 2008,112500,38.480126,-121.4878692277 BABETTE WAY,SACRAMENTO,95832,CA,3,2,1161,Residential,Thu May 15 00:00:00 EDT 2008,114800,38.479593,-121.484346561 WEATHERFORD WAY,SACRAMENTO,95823,CA,3,1,1010,Residential,Thu May 15 00:00:00 EDT 2008,116000,38.465551,-121.426613035 ESTEPA DR Unit 5C,CAMERON PARK,95682,CA,0,0,0,Condo,Thu May 15 00:00:00 EDT 2008,119000,38.681393,-120.9967135136 CABOT CIR,SACRAMENTO,95820,CA,4,2,1462,Residential,Thu May 15 00:00:00 EDT 2008,121500,38.528479,-121.4118067730 ROBINETTE RD,SACRAMENTO,95828,CA,3,2,1269,Residential,Thu May 15 00:00:00 EDT 2008,122000,38.47709,-121.41056987 LACAM CIR,SACRAMENTO,95820,CA,2,2,1188,Residential,Thu May 15 00:00:00 EDT 2008,123675,38.532359,-121.411671691 NOGALES ST,SACRAMENTO,95838,CA,4,2,1570,Residential,Thu May 15 00:00:00 EDT 2008,126854,38.631925,-121.4277753118 42ND ST,SACRAMENTO,95817,CA,3,2,1093,Residential,Thu May 15 00:00:00 EDT 2008,127059,38.546091,-121.4577457517 50TH AVE,SACRAMENTO,95828,CA,3,1,962,Residential,Thu May 15 00:00:00 EDT 2008,128687,38.507339,-121.4162674071 EVALITA WAY,SACRAMENTO,95823,CA,3,2,1089,Residential,Thu May 15 00:00:00 EDT 2008,129500,38.466388,-121.4588617928 36TH AVE,SACRAMENTO,95824,CA,3,2,1127,Residential,Thu May 15 00:00:00 EDT 2008,130000,38.52049,-121.4113836631 DEMARET DR,SACRAMENTO,95822,CA,4,2,1309,Residential,Thu May 15 00:00:00 EDT 2008,131750,38.506382,-121.4835747043 9TH AVE,RIO LINDA,95673,CA,2,1,970,Residential,Thu May 15 00:00:00 EDT 2008,132000,38.695589,-121.44413397 KENNELFORD CIR,SACRAMENTO,95823,CA,3,2,1144,Residential,Thu May 15 00:00:00 EDT 2008,134000,38.462376,-121.4265562636 TRONERO WAY,RANCHO CORDOVA,95670,CA,3,1,1000,Residential,Thu May 15 00:00:00 EDT 2008,134000,38.593049,-121.303041530 TOPANGA LN Unit 204,LINCOLN,95648,CA,0,0,0,Condo,Thu May 15 00:00:00 EDT 2008,138000,38.88415,-121.2702773604 KODIAK WAY,ANTELOPE,95843,CA,3,2,1206,Residential,Thu May 15 00:00:00 EDT 2008,142000,38.706175,-121.3797762149 COTTAGE WAY,SACRAMENTO,95825,CA,3,1,1285,Residential,Thu May 15 00:00:00 EDT 2008,143012,38.603593,-121.4170118632 PRAIRIEWOODS DR,SACRAMENTO,95828,CA,3,2,1543,Residential,Thu May 15 00:00:00 EDT 2008,145846,38.477563,-121.384382612 STONE BLVD,WEST SACRAMENTO,95691,CA,2,1,884,Residential,Thu May 15 00:00:00 EDT 2008,147000,38.563084,-121.5355794180 12TH AVE,SACRAMENTO,95817,CA,3,1,1019,Residential,Thu May 15 00:00:00 EDT 2008,148750,38.54117,-121.4581298025 ARROYO VISTA DR,SACRAMENTO,95823,CA,4,2,1392,Residential,Thu May 15 00:00:00 EDT 2008,150000,38.46654,-121.4190295754 WALERGA RD Unit 4,SACRAMENTO,95842,CA,2,1,924,Condo,Thu May 15 00:00:00 EDT 2008,150454,38.672567,-121.3567548 LA ROCAS CT,SACRAMENTO,95823,CA,3,2,1217,Residential,Thu May 15 00:00:00 EDT 2008,151087,38.46616,-121.4482838636 LONGSPUR WAY,ANTELOPE,95843,CA,3,2,1670,Residential,Thu May 15 00:00:00 EDT 2008,157296,38.725873,-121.358561941 EXPEDITION WAY,SACRAMENTO,95832,CA,3,2,1302,Residential,Thu May 15 00:00:00 EDT 2008,157500,38.473775,-121.4937774351 TURNBRIDGE DR,SACRAMENTO,95823,CA,3,2,1488,Residential,Thu May 15 00:00:00 EDT 2008,160000,38.502034,-121.4560276513 HOLIDAY WAY,NORTH HIGHLANDS,95660,CA,3,2,1373,Residential,Thu May 15 00:00:00 EDT 2008,160000,38.685361,-121.3769388321 MISTLETOE WAY,CITRUS HEIGHTS,95621,CA,4,2,1381,Residential,Thu May 15 00:00:00 EDT 2008,161250,38.717738,-121.3083225920 VALLEY GLEN WAY,SACRAMENTO,95823,CA,3,2,1265,Residential,Thu May 15 00:00:00 EDT 2008,164000,38.462821,-121.4331352601 SAN FERNANDO WAY,SACRAMENTO,95818,CA,2,1,881,Residential,Thu May 15 00:00:00 EDT 2008,165000,38.556178,-121.476256501 POPLAR AVE,WEST SACRAMENTO,95691,CA,0,0,0,Residential,Thu May 15 00:00:00 EDT 2008,165000,38.584526,-121.5346098008 SAINT HELENA CT,SACRAMENTO,95829,CA,4,2,1608,Residential,Thu May 15 00:00:00 EDT 2008,165750,38.467012,-121.3599696517 DONEGAL DR,CITRUS HEIGHTS,95621,CA,3,1,1344,Residential,Thu May 15 00:00:00 EDT 2008,166000,38.681554,-121.3129341001 RIO NORTE WAY,SACRAMENTO,95834,CA,3,2,1202,Residential,Thu May 15 00:00:00 EDT 2008,169000,38.634292,-121.485106604 P ST,LINCOLN,95648,CA,3,2,1104,Residential,Thu May 15 00:00:00 EDT 2008,170000,38.893168,-121.30539810001 WOODCREEK OAKS BLVD Unit 815,ROSEVILLE,95747,CA,2,2,0,Condo,Thu May 15 00:00:00 EDT 2008,170000,38.795529,-121.3288197351 GIGI PL,SACRAMENTO,95828,CA,4,2,1859,Multi-Family,Thu May 15 00:00:00 EDT 2008,170000,38.490606,-121.4101737740 DIXIE LOU ST,SACRAMENTO,95832,CA,3,2,1232,Residential,Thu May 15 00:00:00 EDT 2008,170000,38.475853,-121.4770397342 DAVE ST,SACRAMENTO,95828,CA,3,1,1638,Residential,Thu May 15 00:00:00 EDT 2008,170725,38.490822,-121.4016437687 HOWERTON DR,SACRAMENTO,95831,CA,2,2,1177,Residential,Thu May 15 00:00:00 EDT 2008,171750,38.480859,-121.53974526 KAMSON CT,SACRAMENTO,95833,CA,3,2,1582,Residential,Thu May 15 00:00:00 EDT 2008,172000,38.622794,-121.4991737045 PEEVEY CT,SACRAMENTO,95823,CA,2,2,904,Residential,Thu May 15 00:00:00 EDT 2008,173056,38.502254,-121.4514448916 GABLES MILL PL,ELK GROVE,95758,CA,3,2,1340,Residential,Thu May 15 00:00:00 EDT 2008,174000,38.433919,-121.4223471140 EDMONTON DR,SACRAMENTO,95833,CA,3,2,1204,Residential,Thu May 15 00:00:00 EDT 2008,174250,38.62457,-121.4869138879 APPLE PEAR CT,ELK GROVE,95624,CA,4,2,1477,Residential,Thu May 15 00:00:00 EDT 2008,176850,38.44574,-121.37259 WIND CT,SACRAMENTO,95823,CA,4,2,1497,Residential,Thu May 15 00:00:00 EDT 2008,179500,38.45073,-121.4275288570 SHERATON DR,FAIR OAKS,95628,CA,3,1,960,Residential,Thu May 15 00:00:00 EDT 2008,185000,38.667254,-121.2407081550 TOPANGA LN Unit 207,LINCOLN,95648,CA,0,0,0,Condo,Thu May 15 00:00:00 EDT 2008,188000,38.88417,-121.2702221080 RIO NORTE WAY,SACRAMENTO,95834,CA,3,2,1428,Residential,Thu May 15 00:00:00 EDT 2008,188700,38.634335,-121.4860985501 VALLETTA WAY,SACRAMENTO,95820,CA,3,1,1039,Residential,Thu May 15 00:00:00 EDT 2008,189000,38.530144,-121.437495624 MEMORY LN,FAIR OAKS,95628,CA,3,1,1529,Residential,Thu May 15 00:00:00 EDT 2008,189000,38.66745,-121.23646622 WILLOWLEAF DR,CITRUS HEIGHTS,95621,CA,4,3,1892,Residential,Thu May 15 00:00:00 EDT 2008,189836,38.699714,-121.31163527 MEGAN CT,SACRAMENTO,95838,CA,4,2,1887,Residential,Thu May 15 00:00:00 EDT 2008,190000,38.649258,-121.4653086601 WOODMORE OAKS DR,ORANGEVALE,95662,CA,3,2,1294,Residential,Thu May 15 00:00:00 EDT 2008,191250,38.687006,-121.2543191973 DANVERS WAY,SACRAMENTO,95832,CA,3,2,1638,Residential,Thu May 15 00:00:00 EDT 2008,191675,38.477568,-121.4925748001 ARROYO VISTA DR,SACRAMENTO,95823,CA,3,2,1677,Residential,Thu May 15 00:00:00 EDT 2008,195500,38.46734,-121.4198437409 VOYAGER WAY,CITRUS HEIGHTS,95621,CA,3,1,1073,Residential,Thu May 15 00:00:00 EDT 2008,198000,38.700717,-121.3133815 CROSSWIND DR,SACRAMENTO,95838,CA,3,2,1231,Residential,Thu May 15 00:00:00 EDT 2008,200000,38.651386,-121.450425509 LAGUNA CREST WAY,ELK GROVE,95758,CA,3,2,1175,Residential,Thu May 15 00:00:00 EDT 2008,200000,38.42442,-121.4403578424 MERRY HILL WAY,ELK GROVE,95624,CA,3,2,1416,Residential,Thu May 15 00:00:00 EDT 2008,200000,38.452075,-121.3664611525 PENNSYLVANIA AVE,WEST SACRAMENTO,95691,CA,0,0,0,Residential,Thu May 15 00:00:00 EDT 2008,200100,38.569943,-121.5275395954 BRIDGECROSS DR,SACRAMENTO,95835,CA,3,2,1358,Residential,Thu May 15 00:00:00 EDT 2008,201528,38.68197,-121.5000258789 SEQUOIA WOOD CT,ELK GROVE,95624,CA,4,2,1609,Residential,Thu May 15 00:00:00 EDT 2008,204750,38.438818,-121.374436600 SILVERTHORNE CIR,SACRAMENTO,95842,CA,4,3,1968,Residential,Thu May 15 00:00:00 EDT 2008,205000,38.68607,-121.3423692221 2ND AVE,SACRAMENTO,95818,CA,2,2,1089,Residential,Thu May 15 00:00:00 EDT 2008,205000,38.555781,-121.4853313230 SMATHERS WAY,CARMICHAEL,95608,CA,3,2,1296,Residential,Thu May 15 00:00:00 EDT 2008,205900,38.623372,-121.3476655209 LAGUNA CREST WAY,ELK GROVE,95758,CA,2,2,1189,Residential,Thu May 15 00:00:00 EDT 2008,207000,38.424421,-121.443915416 LEITCH AVE,SACRAMENTO,95815,CA,2,1,795,Residential,Thu May 15 00:00:00 EDT 2008,207973,38.612694,-121.4566692100 BEATTY WAY,ROSEVILLE,95747,CA,3,2,1371,Residential,Thu May 15 00:00:00 EDT 2008,208250,38.737882,-121.3081426920 GILLINGHAM WAY,NORTH HIGHLANDS,95660,CA,3,1,1310,Residential,Thu May 15 00:00:00 EDT 2008,208318,38.694279,-121.37339582 WILDFLOWER DR,GALT,95632,CA,3,2,1262,Residential,Thu May 15 00:00:00 EDT 2008,209347,38.259708,-121.3116168652 BANTON CIR,ELK GROVE,95624,CA,4,2,1740,Residential,Thu May 15 00:00:00 EDT 2008,211500,38.444,-121.3709938428 MISTY PASS WAY,ANTELOPE,95843,CA,3,2,1517,Residential,Thu May 15 00:00:00 EDT 2008,212000,38.722959,-121.3471157958 ROSEVIEW WAY,SACRAMENTO,95828,CA,3,2,1450,Residential,Thu May 15 00:00:00 EDT 2008,213000,38.467836,-121.4103669020 LUKEN CT,ELK GROVE,95624,CA,3,2,1416,Residential,Thu May 15 00:00:00 EDT 2008,216000,38.451398,-121.3666147809 VALLECITOS WAY,SACRAMENTO,95828,CA,3,1,888,Residential,Thu May 15 00:00:00 EDT 2008,216021,38.508217,-121.4112078445 OLD AUBURN RD,CITRUS HEIGHTS,95610,CA,3,2,1882,Residential,Thu May 15 00:00:00 EDT 2008,219000,38.715423,-121.24674310085 ATKINS DR,ELK GROVE,95757,CA,3,2,1302,Residential,Thu May 15 00:00:00 EDT 2008,219794,38.390893,-121.4378219185 CERROLINDA CIR,ELK GROVE,95758,CA,3,2,1418,Residential,Thu May 15 00:00:00 EDT 2008,220000,38.424497,-121.4265959197 CORTINA CIR,ROSEVILLE,95678,CA,3,2,0,Condo,Thu May 15 00:00:00 EDT 2008,220000,38.793152,-121.2900255429 HESPER WAY,CARMICHAEL,95608,CA,4,2,1319,Residential,Thu May 15 00:00:00 EDT 2008,220000,38.665104,-121.3159011178 WARMWOOD CT,GALT,95632,CA,4,2,1770,Residential,Thu May 15 00:00:00 EDT 2008,220000,38.289544,-121.2846074900 ELUDE CT,SACRAMENTO,95842,CA,4,2,1627,Residential,Thu May 15 00:00:00 EDT 2008,223000,38.69674,-121.3505193557 SODA WAY,SACRAMENTO,95834,CA,0,0,0,Residential,Thu May 15 00:00:00 EDT 2008,224000,38.631026,-121.5018793528 SAINT GEORGE DR,SACRAMENTO,95821,CA,3,1,1040,Residential,Thu May 15 00:00:00 EDT 2008,224000,38.629468,-121.3764457381 WASHBURN WAY,NORTH HIGHLANDS,95660,CA,3,1,960,Residential,Thu May 15 00:00:00 EDT 2008,224252,38.70355,-121.3751032181 WINTERHAVEN CIR,CAMERON PARK,95682,CA,3,2,0,Residential,Thu May 15 00:00:00 EDT 2008,224500,38.69757,-120.9957397540 HICKORY AVE,ORANGEVALE,95662,CA,3,1,1456,Residential,Thu May 15 00:00:00 EDT 2008,225000,38.703056,-121.2352215024 CHAMBERLIN CIR,ELK GROVE,95757,CA,3,2,1450,Residential,Thu May 15 00:00:00 EDT 2008,228000,38.389756,-121.4462462400 INVERNESS DR,LINCOLN,95648,CA,3,2,1358,Residential,Thu May 15 00:00:00 EDT 2008,229027,38.897814,-121.3246915 BISHOPGATE CT,SACRAMENTO,95823,CA,4,2,1329,Residential,Thu May 15 00:00:00 EDT 2008,229500,38.467936,-121.4454775601 REXLEIGH DR,SACRAMENTO,95823,CA,4,2,1715,Residential,Thu May 15 00:00:00 EDT 2008,230000,38.445342,-121.4415041909 YARNELL WAY,ELK GROVE,95758,CA,3,2,1262,Residential,Thu May 15 00:00:00 EDT 2008,230000,38.417382,-121.4843259169 GARLINGTON CT,SACRAMENTO,95829,CA,4,3,2280,Residential,Thu May 15 00:00:00 EDT 2008,232425,38.457679,-121.359626932 RUSKUT WAY,SACRAMENTO,95823,CA,3,2,1477,Residential,Thu May 15 00:00:00 EDT 2008,234000,38.499893,-121.458897933 DAFFODIL WAY,CITRUS HEIGHTS,95610,CA,3,2,1216,Residential,Thu May 15 00:00:00 EDT 2008,235000,38.708824,-121.2568038304 RED FOX WAY,ELK GROVE,95758,CA,4,2,1685,Residential,Thu May 15 00:00:00 EDT 2008,235301,38.417,-121.3974243882 YELLOWSTONE LN,EL DORADO HILLS,95762,CA,3,2,1362,Residential,Thu May 15 00:00:00 EDT 2008,235738,38.655245,-121.075915"}, "testmodel.fig2.png": {"name": "testmodel.fig2.png", "filename": "testmodel.fig2.png", "labels": {"type": "figure", "model": "testmodel"}, "size": "0.0091 MB", "caption": "<p>Some math <span class=\"formula\"><span class=\"limits\"><span class=\"limit\">\u2211</span></span><sub><i>i</i></sub><i>i</i><sup>2</sup></span>.</p>\n", "mime_type": "image/png", "job_properties": {"rule": "b", "wildcards": "model=testmodel", "params": ""}, "data_uri": 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"}};
+    </script>
+
+    <script id="categories">
+    var categories = {"Step 1": {"Other": ["fig1.svg"]}, "Other": {"Other": ["testdir/1.txt", "testdir/2.txt", "testdir/3.txt", "lorem-ipsum.pdf", "test.csv"]}, "Step 2": {"testmodel": ["testmodel.fig2.png"]}};
+    </script>
+
+    <script id="rulegraph">
+    var rulegraph_spec = {"$schema": "https://vega.github.io/schema/vega/v5.json", "padding": 0, "signals": [{"name": "cx", "update": "width / 2"}, {"name": "cy", "update": "height / 2"}], "data": [{"name": "node-data", "values": [{"rule": "c", "fx": 10, "fy": 0}, {"rule": "d", "fx": 10, "fy": 50}, {"rule": "e", "fx": 10, "fy": 100}, {"rule": "a", "fx": 10, "fy": 150}, {"rule": "b", "fx": 10, "fy": 200}, {"rule": "all", "fx": 10, "fy": 250}]}, {"name": "link-data", "values": [{"target": 3, "source": 0, "sourcerule": "c", "targetrule": "a", "value": 1}, {"target": 3, "source": 0, "sourcerule": "c", "targetrule": "a", "value": 1}, {"target": 3, "source": 0, "sourcerule": "c", "targetrule": "a", "value": 1}, {"target": 3, "source": 0, "sourcerule": "c", "targetrule": "a", "value": 1}, {"target": 3, "source": 0, "sourcerule": "c", "targetrule": "a", "value": 1}, {"target": 3, "source": 0, "sourcerule": "c", "targetrule": "a", "value": 1}, {"target": 3, "source": 0, "sourcerule": "c", "targetrule": "a", "value": 1}, {"target": 3, "source": 0, "sourcerule": "c", "targetrule": "a", "value": 1}, {"target": 3, "source": 0, "sourcerule": "c", "targetrule": "a", "value": 1}, {"target": 3, "source": 0, "sourcerule": "c", "targetrule": "a", "value": 1}, {"target": 4, "source": 0, "sourcerule": "c", "targetrule": "b", "value": 1}, {"target": 4, "source": 0, "sourcerule": "c", "targetrule": "b", "value": 1}, {"target": 4, "source": 0, "sourcerule": "c", "targetrule": "b", "value": 1}, {"target": 4, "source": 0, "sourcerule": "c", "targetrule": "b", "value": 1}, {"target": 4, "source": 0, "sourcerule": "c", "targetrule": "b", "value": 1}, {"target": 4, "source": 0, "sourcerule": "c", "targetrule": "b", "value": 1}, {"target": 4, "source": 0, "sourcerule": "c", "targetrule": "b", "value": 1}, {"target": 4, "source": 0, "sourcerule": "c", "targetrule": "b", "value": 1}, {"target": 4, "source": 0, "sourcerule": "c", "targetrule": "b", "value": 1}, {"target": 4, "source": 0, "sourcerule": "c", "targetrule": "b", "value": 1}, {"target": 5, "source": 3, "sourcerule": "a", "targetrule": "all", "value": 1}, {"target": 5, "source": 1, "sourcerule": "d", "targetrule": "all", "value": 1}, {"target": 5, "source": 2, "sourcerule": "e", "targetrule": "all", "value": 1}]}, {"name": "link-data-direct", "values": [{"target": 5, "source": 4, "sourcerule": "b", "targetrule": "all", "value": 1}]}], "scales": [{"name": "color", "type": "ordinal", "range": {"scheme": "category20c"}}, {"name": "x", "type": "linear"}, {"name": "y", "type": "linear"}], "marks": [{"name": "nodes", "type": "symbol", "zindex": 1, "from": {"data": "node-data"}, "encode": {"enter": {"fill": {"scale": "color", "field": "rule"}, "x": {"field": "fx", "scale": "x"}, "y": {"field": "fy", "scale": "y"}, "tooltip": {"value": "Click to show rule details."}}, "update": {"size": {"value": 70}}, "hover": {"size": {"value": 140}}}, "transform": [{"type": "force", "iterations": 1, "static": true, "forces": [{"force": "link", "links": "link-data"}]}, {"type": "force", "iterations": 1, "static": true, "forces": [{"force": "link", "links": "link-data-direct"}]}]}, {"name": "labels", "type": "text", "zindex": 2, "from": {"data": "node-data"}, "encode": {"enter": {"fill": {"value": "black"}, "fontWeight": {"value": "normal"}, "text": {"field": "rule"}, "x": {"field": "fx", "scale": "x"}, "y": {"field": "fy", "scale": "y"}, "dx": {"value": -5}, "dy": {"value": -5}, "align": {"value": "right"}}}}, {"type": "path", "from": {"data": "link-data-direct"}, "interactive": true, "encode": {"update": {"stroke": {"value": "#ccc"}, "strokeWidth": {"value": 1.0}}, "hover": {"strokeWidth": {"value": 4.0}}}, "transform": [{"type": "linkpath", "shape": "diagonal", "sourceX": "datum.source.x", "sourceY": "datum.source.y", "targetX": "datum.target.x", "targetY": "datum.target.y"}]}, {"type": "path", "from": {"data": "link-data"}, "interactive": true, "encode": {"enter": {"tooltip": {"signal": "{\"from rule\": datum['sourcerule'], \"to rule\": datum['targetrule']}"}}, "update": {"stroke": {"value": "#ccc"}, "strokeWidth": {"value": 1.0}}, "hover": {"strokeWidth": {"value": 4.0}}}, "transform": [{"type": "linkpath", "shape": "curve", "orient": "horizontal", "sourceX": "datum.source.x", "sourceY": "datum.source.y", "targetX": "datum.target.x", "targetY": "datum.target.y"}]}]};
+    </script>
+
+    <script id="runtimes">
+    var runtimes_spec = {"$schema": "https://vega.github.io/schema/vega-lite/v3.json", "description": "Runtimes of jobs.", "data": {"values": [{"rule": "a", "runtime": 2.0280115604400635}, {"rule": "c", "runtime": 3.028017282485962}, {"rule": "c", "runtime": 3.020017147064209}, {"rule": "c", "runtime": 2.0160114765167236}, {"rule": "c", "runtime": 3.016017198562622}, {"rule": "c", "runtime": 1.0240058898925781}, {"rule": "c", "runtime": 3.016016960144043}, {"rule": "c", "runtime": 1.0160057544708252}, {"rule": "c", "runtime": 2.0120115280151367}, {"rule": "c", "runtime": 3.024017095565796}, {"rule": "c", "runtime": 1.0160057544708252}, {"rule": "d", "runtime": 1.0520060062408447}, {"rule": "e", "runtime": 0.012000083923339844}]}, "mark": "point", "encoding": {"x": {"field": "runtime", "type": "quantitative", "axis": {"title": "runtime [s]", "labelAngle": -90}, "scale": {"type": "log"}}, "y": {"field": "rule", "type": "nominal"}, "color": {"value": "#007bff"}}};
+    </script>
+
+    <script id="timeline">
+    var timeline_spec = {"$schema": "https://vega.github.io/schema/vega-lite/v3.json", "description": "Timeline of jobs.", "data": {"values": [{"rule": "a", "starttime": "2020-03-27T14:58:42.460061", "endtime": "2020-03-27T14:58:44.488072"}, {"rule": "c", "starttime": "2020-03-27T14:58:39.404043", "endtime": "2020-03-27T14:58:42.432060"}, {"rule": "c", "starttime": "2020-03-27T14:58:38.368037", "endtime": "2020-03-27T14:58:41.388055"}, {"rule": "c", "starttime": "2020-03-27T14:58:38.384037", "endtime": "2020-03-27T14:58:40.400049"}, {"rule": "c", "starttime": "2020-03-27T14:58:38.352037", "endtime": "2020-03-27T14:58:41.368054"}, {"rule": "c", "starttime": "2020-03-27T14:58:39.356043", "endtime": "2020-03-27T14:58:40.380049"}, {"rule": "c", "starttime": "2020-03-27T14:58:38.344037", "endtime": "2020-03-27T14:58:41.360054"}, {"rule": "c", "starttime": "2020-03-27T14:58:38.332037", "endtime": "2020-03-27T14:58:39.348043"}, {"rule": "c", "starttime": "2020-03-27T14:58:38.340037", "endtime": "2020-03-27T14:58:40.352049"}, {"rule": "c", "starttime": "2020-03-27T14:58:39.424043", "endtime": "2020-03-27T14:58:42.448061"}, {"rule": "c", "starttime": "2020-03-27T14:58:38.376037", "endtime": "2020-03-27T14:58:39.392043"}, {"rule": "d", "starttime": "2020-03-27T14:58:38.360037", "endtime": "2020-03-27T14:58:39.412043"}, {"rule": "e", "starttime": "2020-03-27T14:58:38.356037", "endtime": "2020-03-27T14:58:38.368037"}]}, "mark": "point", "encoding": {"x": {"field": "endtime", "type": "temporal", "timeUnit": "yearmonthdatehoursminutes", "axis": {"labelAngle": -90, "title": "creation date"}}, "y": {"field": "rule", "type": "nominal"}, "color": {"value": "#007bff"}}};
+    </script>
+
+    <script id="rules">
+    var rules = {"a": {"input": ["test.0.out", "test.1.out", "test.2.out", "test.3.out", "test.4.out", "test.5.out", "test.6.out", "test.7.out", "test.8.out", "test.9.out"], "output": ["fig1.svg"], "conda_env": null, "container_img_url": null, "code": "<table class=\"sourcetable\"><tr><td class=\"linenos\"><div class=\"linenodiv\"><pre><span class=\"normal\">1</span></pre></div></td><td class=\"code\"><div class=\"source\"><pre><span></span><code>sleep <span class=\"sb\">`</span>shuf -i <span class=\"m\">1</span>-3 -n <span class=\"m\">1</span><span class=\"sb\">`</span><span class=\"p\">;</span> cp data/fig1.svg <span class=\"o\">{</span>output<span class=\"o\">}</span>\n</code></pre></div>\n</td></tr></table>", "n_jobs": 1}, "c": {"input": ["lorem-ipsum.pdf"], "output": ["test.{i}.out"], "conda_env": null, "container_img_url": "docker://continuumio/miniconda3:4.4.10", "code": "<table class=\"sourcetable\"><tr><td class=\"linenos\"><div class=\"linenodiv\"><pre><span class=\"normal\">1</span></pre></div></td><td class=\"code\"><div class=\"source\"><pre><span></span><code>sleep <span class=\"sb\">`</span>shuf -i <span class=\"m\">1</span>-3 -n <span class=\"m\">1</span><span class=\"sb\">`</span><span class=\"p\">;</span> touch <span class=\"o\">{</span>output<span class=\"o\">}</span>\n</code></pre></div>\n</td></tr></table>", "n_jobs": 10}, "d": {"input": [], "output": ["test.csv"], "conda_env": null, "container_img_url": null, "code": "<table class=\"sourcetable\"><tr><td class=\"linenos\"><div class=\"linenodiv\"><pre><span class=\"normal\">1</span></pre></div></td><td class=\"code\"><div class=\"source\"><pre><span></span><code>\n</code></pre></div>\n</td></tr></table>", "n_jobs": 1}, "e": {"input": [], "output": ["testdir"], "conda_env": null, "container_img_url": null, "code": "<table class=\"sourcetable\"><tr><td class=\"linenos\"><div class=\"linenodiv\"><pre><span class=\"normal\">1</span>\n<span class=\"normal\">2</span>\n<span class=\"normal\">3</span>\n<span class=\"normal\">4</span>\n<span class=\"normal\">5</span>\n<span class=\"normal\">6</span></pre></div></td><td class=\"code\"><div class=\"source\"><pre><span></span><code>        mkdir <span class=\"o\">{</span>output<span class=\"o\">}</span>\n        <span class=\"k\">for</span> x <span class=\"k\">in</span> <span class=\"m\">1</span> <span class=\"m\">2</span> <span class=\"m\">3</span>\n        <span class=\"k\">do</span> \n            <span class=\"nb\">echo</span> <span class=\"nv\">$x</span> &gt; testdir/<span class=\"nv\">$x</span>.txt\n        <span class=\"k\">done</span>\n        \n</code></pre></div>\n</td></tr></table>", "n_jobs": 1}};
+    </script>
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+    </script>
+
+    <script>const e = React.createElement;
+
+function isNoResults() {
+    return Object.keys(categories).length == 0;
+}
+
+function isSingleCategory() {
+    return Object.keys(categories).length == 1;
+}
+
+function isSingleDefaultCategory() {
+    return isSingleCategory() && Object.keys(categories)[0] == "Other";
+}
+
+function isSingleSubcategory(category) {
+    console.log(categories, category);
+    return Object.keys(categories[category]).length == 1;
+}</script>
+    <script>'use strict';
+
+class ListItem extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        return e(
+            "li",
+            { className: "p-1", ...this.props },
+            this.props.children
+        );
+    }
+}</script>
+    <script>'use strict';
+
+class ListHeading extends React.Component {
+    render() {
+        return e(
+            "li",
+            { className: "uppercase font-bold p-1" },
+            this.props.text
+        );
+    }
+}</script>
+    <script>'use strict';
+
+class Icon extends React.Component {
+    // paths are imported from https://heroicons.com
+    paths = {
+        "chevron-right": [
+            { rule: "evenodd", path: "M7.293 14.707a1 1 0 010-1.414L10.586 10 7.293 6.707a1 1 0 011.414-1.414l4 4a1 1 0 010 1.414l-4 4a1 1 0 01-1.414 0z" }
+        ],
+        "menu": [
+            { rule: "evenodd", path: "M3 5a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 10a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 15a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1z" }
+        ],
+        "x": [
+            { rule: "evenodd", path: "M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" }
+        ],
+        "arrow-down": [
+            { rule: "evenodd", path: "M16.707 10.293a1 1 0 010 1.414l-6 6a1 1 0 01-1.414 0l-6-6a1 1 0 111.414-1.414L9 14.586V3a1 1 0 012 0v11.586l4.293-4.293a1 1 0 011.414 0z" }
+        ],
+        "arrow-circle-left": [
+            { rule: "evenodd", path: "M10 18a8 8 0 100-16 8 8 0 000 16zm.707-10.293a1 1 0 00-1.414-1.414l-3 3a1 1 0 000 1.414l3 3a1 1 0 001.414-1.414L9.414 11H13a1 1 0 100-2H9.414l1.293-1.293z" }
+        ],
+        "arrow-circle-right": [
+            { rule: "evenodd", path: "M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-8.707l-3-3a1 1 0 00-1.414 1.414L10.586 9H7a1 1 0 100 2h3.586l-1.293 1.293a1 1 0 101.414 1.414l3-3a1 1 0 000-1.414z" }
+        ],
+        "information-circle": [
+            { rule: "evenodd", path: "M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" }
+        ],
+        "home": [
+            { rule: "evenodd", path: "M10.707 2.293a1 1 0 00-1.414 0l-7 7a1 1 0 001.414 1.414L4 10.414V17a1 1 0 001 1h2a1 1 0 001-1v-2a1 1 0 011-1h2a1 1 0 011 1v2a1 1 0 001 1h2a1 1 0 001-1v-6.586l.293.293a1 1 0 001.414-1.414l-7-7z" }
+        ],
+        "share": [
+            { rule: "evenodd", path: "M15 8a3 3 0 10-2.977-2.63l-4.94 2.47a3 3 0 100 4.319l4.94 2.47a3 3 0 10.895-1.789l-4.94-2.47a3.027 3.027 0 000-.74l4.94-2.47C13.456 7.68 14.19 8 15 8z" }
+        ],
+        "chart": [
+            { rule: "evenodd", path: "M2 11a1 1 0 011-1h2a1 1 0 011 1v5a1 1 0 01-1 1H3a1 1 0 01-1-1v-5zM8 7a1 1 0 011-1h2a1 1 0 011 1v9a1 1 0 01-1 1H9a1 1 0 01-1-1V7zM14 4a1 1 0 011-1h2a1 1 0 011 1v12a1 1 0 01-1 1h-2a1 1 0 01-1-1V4z" }
+        ],
+        "folder": [
+            { rule: "evenodd", path: "M2 6a2 2 0 012-2h5l2 2h5a2 2 0 012 2v6a2 2 0 01-2 2H4a2 2 0 01-2-2V6z" }
+        ],
+        "eye": [
+            { rule: undefined, path: "M10 12a2 2 0 100-4 2 2 0 000 4z" },
+            { rule: "evenodd", path: "M.458 10C1.732 5.943 5.522 3 10 3s8.268 2.943 9.542 7c-1.274 4.057-5.064 7-9.542 7S1.732 14.057.458 10zM14 10a4 4 0 11-8 0 4 4 0 018 0z" },
+        ]
+    }
+
+    render() {
+        return e(
+            "svg",
+            { xmlns: "http://www.w3.org/2000/svg", className: `h-4 w-4 ${this.props.className}`, viewBox: "0 0 20 20", fill: "currentColor", },
+            this.renderPath().map(function (item, index) {
+
+                return e(
+                    "path",
+                    { fillRule: item.rule, clipRule: item.rule, d: item.path, key: index }
+                );
+            })
+        )
+    }
+
+    renderPath() {
+        return this.paths[this.props.iconName];
+    }
+}
+</script>
+    <script>'use strict';
+
+class Button extends React.Component {
+    render() {
+        return this.renderButton(this.props.iconName, this.props);
+    }
+
+    renderButton(iconName, props) {
+        return e(
+            "a",
+            { type: "button", className: `transition-all inline-block p-1 text-emerald-500 rounded hover:bg-slate-800`, ...props },
+            e(Icon, { iconName: iconName })
+        );
+    }
+}</script>
+    <script>'use strict';
+
+class ResultViewButton extends React.Component {
+
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        let result = results[this.props.resultPath];
+
+        return this.getViewButton(this.props.resultPath, result);
+    }
+
+    getViewButton(resultPath, entry) {
+        const mimeType = this.getResultMimeType(resultPath);
+        let setView = this.props.app.setView;
+
+        let props = undefined;
+
+        switch (mimeType) {
+            case "image/svg+xml":
+            case "image/png":
+            case "image/jpeg":
+                props = {
+                    href: "#",
+                    onClick: function () {
+                        setView({
+                            content: "img",
+                            contentPath: entry.data_uri
+                        })
+                    }
+                };
+                break;
+            case "text/html":
+                props = {
+                    href: "#",
+                    onClick: function () {
+                        setView({
+                            content: "html",
+                            contentPath: entry.data_uri
+                        })
+                    }
+                };
+                break;
+            case "application/pdf":
+                props = {
+                    href: "#",
+                    onClick: function () {
+                        setView({
+                            content: "pdf",
+                            contentPath: entry.data_uri
+                        })
+                    }
+                };
+                break;
+            default:
+                props = {
+                    href: entry.data_uri,
+                    download: entry.name,
+                    target: "_blank"
+                };
+        }
+        return e(
+            Button,
+            { iconName: "eye", ...props }
+        );
+    }
+
+    getResultMimeType(resultPath) {
+        return results[resultPath].mime_type
+    }
+}</script>
+    <script>'use strict';
+
+class AbstractMenu extends React.Component {
+    buttonProps = { className: "transition-all block hover:text-emerald-500 rounded hover:bg-slate-800 p-1 flex items-center gap-2" };
+    iconProps = { className: "text-emerald-500" };
+
+    constructor(props) {
+        super(props);
+    }
+
+    getMenuItem(label, iconName, onClick) {
+        console.log(label, onClick);
+        return e(
+            "li",
+            { key: label },
+            e(
+                "a",
+                { href: "#", onClick: onClick, ...this.buttonProps },
+                e(Icon, { iconName: iconName, ...this.iconProps }),
+                e(
+                    "span",
+                    {},
+                    label
+                )
+            )
+        );
+    }
+}</script>
+    <script>'use strict';
+
+class AbstractResults extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        return e(
+            "table",
+            { className: "table-auto text-white text-sm w-full" },
+            e(
+                "thead",
+                {},
+                this.renderHeader(),
+            ),
+            e(
+                "tbody",
+                {},
+                this.renderEntries()
+            )
+        )
+    }
+
+    getResults() {
+        throw new Error("Unimplemented!");
+    }
+
+    getCategory() {
+        throw new Error("Unimplemented!");
+    }
+
+    getSubcategory() {
+        throw new Error("Unimplemented!");
+    }
+
+    getSearchTerm() {
+        throw new Error("Unimplemented!");
+    }
+
+    getLabels() {
+        return Array.from(new Set(this.getResults().map(function ([path, result]) { return Object.keys(result.labels) }).flat())).sort();
+    }
+
+    isLabelled() {
+        return this.getResults().every(function ([path, result]) {
+            return result.labels;
+        });
+    }
+
+    renderHeader() {
+        if (this.isLabelled()) {
+            return e(
+                "tr",
+                {},
+                this.getLabels().map(function (label) {
+                    return e(
+                        "th",
+                        { className: "text-left p-1 uppercase" },
+                        label
+                    )
+                }),
+                e(
+                    "th",
+                    { className: "text-right p-1 w-fit" },
+                )
+            )
+        } else {
+            return e(
+                "tr",
+                {},
+                e(
+                    "th",
+                    { className: "text-left p-1" },
+                    "Filename"
+                ),
+                e(
+                    "th",
+                    { className: "text-right p-1 w-fit" },
+                )
+            )
+        }
+    }
+
+    renderEntries() {
+        let _this = this;
+        let app = this.props.app;
+        let labels = undefined;
+        if (this.isLabelled()) {
+            labels = this.getLabels();
+        }
+        return this.getResults().map(function ([path, entry]) {
+            let actions = e(
+                "td",
+                { className: "p-1 text-right" },
+                e(
+                    "div",
+                    { className: "inline-flex gap-1", role: "group" },
+                    e(
+                        ResultViewButton,
+                        { resultPath: path, app: app }
+                    ),
+                    e(
+                        Button,
+                        {
+                            href: "#",
+                            onClick: () => app.showResultInfo(path),
+                            iconName: "information-circle"
+                        }
+                    )
+                )
+            );
+
+            let entryLabels = undefined;
+            let key = undefined;
+            if (labels !== undefined) {
+                entryLabels = labels.map(function (label) {
+                    return e(
+                        "td",
+                        { className: "p-1" },
+                        entry.labels[label] || ""
+                    );
+                });
+                key = labels.join();
+            } else {
+                entryLabels = e(
+                    "td",
+                    { className: "p-1" },
+                    path
+                );
+                key = path;
+            }
+
+            return [
+                e(
+                    "tr",
+                    { key: key },
+                    entryLabels,
+                    actions
+                )
+            ];
+        })
+    }
+}</script>
+    <script>'use strict';
+
+class Breadcrumbs extends React.Component {
+    constructor(props) {
+        super(props);
+        this.state = { searchTerm: "" };
+    }
+
+    render() {
+        return e(
+            "nav",
+            { className: "text-white whitespace-nowrap align-middle text-xs m-2 p-2 rounded bg-slate-800 min-w-fit" },
+            e(
+                "ol",
+                { className: "list-reset flex items-center gap-1" },
+                this.renderEntries(),
+                this.renderSearch()
+            )
+        )
+    }
+
+    renderEntries() {
+        let entries = this.props.entries.filter(function (entry) {
+            return entry !== undefined
+        });
+
+        return entries.map(function (entry, index) {
+            const isLast = index == entries.length - 1;
+
+            let content = entry.name;
+            if (entry.icon !== undefined) {
+                content = e(
+                    Icon,
+                    { iconName: entry.icon }
+                )
+            }
+
+
+            let link = content;
+            if (entry.func !== undefined) {
+                link = e(
+                    "a",
+                    { className: "hover:text-emerald-600", href: "#", onClick: entry.func },
+                    content
+                );
+            }
+
+            let props = {};
+            if (isLast) {
+                props = { className: "grow" }
+            }
+
+            let item = e(
+                "li",
+                { key: entry.name, ...props },
+                link
+            );
+            if (!isLast) {
+                item = [
+                    item,
+                    e(
+                        "li",
+                        { key: `sep-${index}` },
+                        e(
+                            Icon,
+                            { iconName: "chevron-right", className: "text-emerald-500" }
+                        )
+                    )
+                ];
+            }
+
+            return item;
+        });
+    }
+
+    renderSearch() {
+        let _this = this;
+        return e(
+            "li",
+            { className: "flex-0" },
+            e(
+                "input",
+                {
+                    type: "text",
+                    placeholder: "Search...",
+                    title: "Search all results. Prefix with 're:' to perform regexp search.",
+                    size: 10,
+                    className: "border-0 bg-transparent text-white h-3 w-fit text-xs text-right form-control rounded",
+                    onKeyPress: function (event) {
+                        if (event.charCode == 13) {
+                            event.preventDefault();
+                            _this.showSearchResults();
+                        }
+                    },
+                    onChange: function (event) {
+                        _this.setState({ searchTerm: event.target.value });
+                    }
+                },
+            )
+        )
+    }
+
+    showSearchResults() {
+        this.props.setView({ navbarMode: "searchresults", searchTerm: this.state.searchTerm })
+    }
+}
+</script>
+    <script>'use strict';
+
+class Menu extends AbstractMenu {
+    constructor(props) {
+        super(props);
+        this.showWorkflow = this.showWorkflow.bind(this);
+        this.showStatistics = this.showStatistics.bind(this);
+    }
+
+    render() {
+        return e(
+            "ul",
+            {},
+            this.getHeading(),
+            this.getMenuItem("Workflow", "share", this.showWorkflow),
+            this.getMenuItem("Statistics", "chart", this.showStatistics),
+            this.getCategoryMenumitems()
+        )
+    }
+
+    showWorkflow() {
+        this.props.app.setView({ content: "rulegraph" });
+    }
+
+    showStatistics() {
+        this.props.app.setView({ content: "stats" });
+    }
+
+    getHeading() {
+        if (isSingleCategory()) {
+            return [];
+        } else {
+            return e(
+                ListHeading,
+                { text: "General" }
+            )
+        }
+    }
+
+    getCategoryMenumitems() {
+        let _this = this;
+        let app = this.props.app;
+        if (isSingleCategory()) {
+            let category = Object.keys(categories)[0];
+            return this.getMenuItem("Results", "folder", () => app.showCategory(category));
+        } else if (isNoResults()) {
+            return [];
+        } else {
+            let items = [e(
+                "li",
+                { key: "Results", className: "uppercase font-bold p-1 mt-2" },
+                "Results"
+            )];
+
+            items.push(...Object.keys(categories).map(function (category) {
+                return _this.getMenuItem(category, "folder", () => app.showCategory(category));
+            }));
+
+            return items;
+        }
+    }
+}</script>
+    <script>'use strict';
+
+class Category extends AbstractMenu {
+    render() {
+        return e(
+            "ul",
+            {},
+            this.getSubcategoryMenuitems()
+        )
+    }
+
+    showSubcategory(subcategory) {
+        this.props.setView({ navbarMode: "subcategory", category: this.props.category, subcategory: subcategory })
+    }
+
+    getSubcategoryMenuitems() {
+        let _this = this
+        return Object.keys(categories[this.props.category]).map(function (subcategory) {
+            return _this.getMenuItem(subcategory, "folder", () => _this.showSubcategory(subcategory));
+        });
+    }
+}</script>
+    <script>'use strict';
+
+class Subcategory extends AbstractResults {
+    getResults() {
+        return categories[this.props.category][this.props.subcategory].map(function (path) {
+            return [path, results[path]];
+        });
+    }
+
+    getCategory() {
+        return this.props.category;
+    }
+
+    getSubcategory() {
+        return this.props.subcategory;
+    }
+
+    getSearchTerm() {
+        return undefined;
+    }
+}</script>
+    <script>'use strict';
+
+class SearchResults extends AbstractResults {
+    getSearchFunc() {
+        let term = this.props.searchTerm;
+        if (term.startsWith("re:")) {
+            let regexp = new RegExp(term.slice(3));
+            return function (text) {
+                return regexp.test(text);
+            }
+        } else {
+            return function (text) {
+                return text.includes(term);
+            }
+        }
+    }
+
+    getResults() {
+        let searchFunc = this.getSearchFunc();
+        return Object.entries(results).map(function ([path, result]) {
+            if (searchFunc(path)) {
+                return [path, result];
+            }
+            const columns = result.columns || [];
+            for (const columnValue in columns) {
+                if (searchFunc(columnValue)) {
+                    return [path, result];
+                }
+            }
+            return undefined;
+        }).filter(function (item) {
+            return item !== undefined;
+        })
+    }
+
+    getCategory() {
+        return undefined;
+    }
+
+    getSubcategory() {
+        return undefined;
+    }
+
+    getSearchTerm() {
+        return this.props.searchTerm;
+    }
+}</script>
+    <script>'use strict';
+
+class ResultInfo extends React.Component {
+    render() {
+        return e(
+            "ul",
+            {},
+            this.getDescriptor(),
+            this.getCaption(),
+            this.getSize(),
+            this.getRule(),
+            this.getParamsAndWildcards(),
+        )
+    }
+
+    getResult() {
+        return results[this.props.resultPath];
+    }
+
+    getDescriptor() {
+        let result = this.getResult();
+        let resultPath = this.props.resultPath;
+        let app = this.props.app;
+
+        if (result.labels) {
+            const labels = Object.keys(result.labels).sort();
+            return [
+                e(
+                    ListItem,
+                    {},
+                    e(
+                        "table",
+                        { className: "table-auto text-white text-sm items-center" },
+                        e(
+                            "thead",
+                            {},
+                            e(
+                                "tr",
+                                {},
+                                labels.map(function (label) {
+                                    return e(
+                                        "th",
+                                        { className: "text-left uppercase pr-2" },
+                                        label
+                                    );
+                                }),
+                                e("th", {})
+                            )
+                        ),
+                        e(
+                            "tbody",
+                            {},
+                            e(
+                                "tr",
+                                {},
+                                labels.map(function (label, index) {
+                                    const value = result.labels[label];
+                                    let item = value;
+                                    if (index == labels.length - 1) {
+                                        item = e(
+                                            "span",
+                                            { className: "flex items-center gap-2" },
+                                            e("span", {}, value),
+                                            e(
+                                                ResultViewButton,
+                                                { resultPath: resultPath, app: app }
+                                            )
+                                        );
+                                    }
+
+                                    return e(
+                                        "td",
+                                        { className: "pr-2" },
+                                        item
+                                    );
+                                }),
+                            )
+                        )
+                    )
+                )
+            ];
+        } else {
+            return [
+                e(
+                    ListHeading,
+                    { text: "Path", key: "result" }
+                ),
+                e(
+                    ListItem,
+                    { key: "path" },
+                    e(
+                        "span",
+                        { className: "flex items-center gap-2" },
+                        e(
+                            "span",
+                            {},
+                            this.props.resultPath
+                        ),
+                        e(
+                            ResultViewButton,
+                            { resultPath: this.props.resultPath, app: app }
+                        )
+                    )
+                ),
+            ];
+        }
+    }
+
+    getCaption() {
+        const caption = this.getResult().caption;
+        if (caption) {
+            return [
+                e(
+                    ListHeading,
+                    { key: "caption-heading", text: "Description" }
+                ),
+                e(
+                    ListItem,
+                    {
+                        key: "caption",
+                        className: "p-1 prose prose-invert prose-sm",
+                        dangerouslySetInnerHTML: { __html: caption }
+                    }
+                )
+            ];
+        } else {
+            return [];
+        }
+    }
+
+    getRule() {
+        const setView = this.props.app.setView;
+        const rule = this.getResult().job_properties.rule;
+        return [
+            e(
+                ListHeading,
+                { key: "rule-heading", text: "Snakemake rule" }
+            ),
+            e(
+                ListItem,
+                { key: "rulename" },
+                e(
+                    "span",
+                    { className: "flex items-center gap-1" },
+                    [
+                        e(
+                            "span",
+                            {},
+                            rule
+                        ),
+                        e(
+                            "a",
+                            {
+                                type: "button",
+                                href: "#",
+                                className: `transition-all inline-block p-1 text-emerald-500 rounded hover:bg-slate-800`,
+                                onClick: () => setView({ navbarMode: "ruleinfo", ruleinfo: rule })
+                            },
+                            e(Icon, { iconName: "information-circle" })
+                        )
+                    ]
+                )
+            )
+        ]
+    }
+
+    getParamsAndWildcards() {
+        const jobProperties = this.getResult().job_properties;
+        if (jobProperties.params || jobProperties.wildcards) {
+            let items = [
+                e(
+                    ListHeading,
+                    { key: "params-heading", text: "Job parameters" }
+                ),
+            ];
+            if (jobProperties.wildcards) {
+                items.push(e(
+                    ListItem,
+                    { key: "wildcards" },
+                    jobProperties.wildcards
+                ));
+            }
+            if (jobProperties.params) {
+                items.push(e(
+                    ListItem,
+                    { key: "params" },
+                    jobProperties.params
+                ));
+            }
+            return items;
+        } else {
+            return [];
+        }
+    }
+
+    getSize() {
+        return [
+            e(
+                ListHeading,
+                { key: "size-heading", text: "Size" }
+            ),
+            e(
+                ListItem,
+                { key: "size" },
+                this.getResult().size
+            )
+        ];
+    }
+}</script>
+    <script>'use strict';
+
+class RuleGraph extends React.Component {
+    constructor(props) {
+        super(props);
+        this.showRuleProperties = this.showRuleProperties.bind(this);
+    }
+
+    render() {
+        return e(
+            "div",
+            { id: "rulegraph" }
+        )
+    }
+
+    componentDidMount() {
+        let showRuleProperties = this.showRuleProperties;
+        vegaEmbed("#rulegraph", rulegraph_spec).then(function (ret) {
+            ret.view.addEventListener("click", function (event, item) {
+                if (item && "rule" in item.datum) {
+                    var rule = item.datum.rule;
+                    showRuleProperties(rule);
+                }
+            });
+        });
+    }
+
+    showRuleProperties(rule) {
+        this.props.setView({
+            navbarMode: "ruleinfo",
+            ruleinfo: rule
+        });
+    }
+}</script>
+    <script>'use strict';
+
+class RuleInfo extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        let rule = rules[this.props.rule];
+        if (rule === undefined) {
+            return e(
+                "span",
+                { className: "p-1" },
+                `No metadata available for rule ${this.props.rule}`
+            );
+        }
+
+        return e(
+            "ol",
+            {},
+            this.renderItems("Input", rule.input, {}, false),
+            this.renderItems("Output", rule.output),
+            this.renderSoftware(),
+            this.renderItems("Container", [rule.container]),
+            this.renderCode(),
+        )
+    }
+
+    renderSoftware() {
+        let rule = rules[this.props.rule];
+        if (rule.conda_env) {
+            return this.renderItems("Software", rule.conda_env.dependencies);
+        } else {
+            return [];
+        }
+    }
+
+    renderCode() {
+        let rule = rules[this.props.rule];
+        if (rule.code.length) {
+            return [
+                e(
+                    ListHeading,
+                    { key: "code-heading", text: "Code" }
+                ),
+                e(
+                    ListItem,
+                    {
+                        key: "code",
+                        className: "p-1",
+                        dangerouslySetInnerHTML: { __html: rule.code }
+                    }
+                )
+            ];
+        } else {
+            return [];
+        }
+    }
+
+    renderItems(heading, items, props = {}, margin = true) {
+        if (items.length && items.every((item) => item !== undefined)) {
+            let headingProps = {};
+            if (margin) {
+                headingProps = { className: "" }
+            }
+            return [
+                e(
+                    ListHeading,
+                    { text: heading, ...headingProps }
+                ),
+                items.map(function (item) {
+                    return e(
+                        ListItem,
+                        props,
+                        item
+                    );
+                })
+            ];
+        } else {
+            return [];
+        }
+    }
+}</script>
+    <script>'use strict';
+
+class Stats extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        return e(
+            "div",
+            { className: "flex" },
+            e(
+                "div",
+                { id: "runtimes" }
+            ),
+            e(
+                "div",
+                { id: "timeline" }
+            )
+        )
+    }
+
+    componentDidMount() {
+        vegaEmbed("#runtimes", runtimes_spec);
+        vegaEmbed("#timeline", timeline_spec);
+    }
+}</script>
+    <script>'use strict';
+
+
+
+class ContentDisplay extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        return e(
+            "div",
+            { className: "flex items-center justify-center min-h-screen z-0" },
+            this.renderContent()
+        )
+    }
+
+    renderContent() {
+        let setView = this.props.app.setView;
+        switch (this.props.app.state.content) {
+            case "rulegraph":
+                return e(
+                    "div",
+                    { className: "flex gap-3 p-3 items-start" },
+                    e(RuleGraph, { setView: setView }),
+                    e(
+                        "div",
+                        {},
+                        e(
+                            "div",
+                            {
+                                className: "prose prose-sm max-w-lg",
+                                dangerouslySetInnerHTML: { __html: workflow_desc }
+                            }
+                        ),
+                        e(
+                            "div",
+                            { id: "brand" }
+                        )
+                    )
+                );
+            case "stats":
+                return e(
+                    "div",
+                    { className: "p-3" },
+                    e(Stats)
+                );
+            case "img":
+                return e(
+                    "div",
+                    { className: "p-3" },
+                    e(
+                        "img",
+                        { src: this.props.app.state.contentPath }
+                    )
+                );
+            case "html":
+            case "pdf":
+                return e(
+                    "iframe",
+                    { src: this.props.app.state.contentPath, className: "w-screen h-screen" }
+                )
+        }
+    }
+}</script>
+    <script>'use strict';
+
+
+class Navbar extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        let translateNavbar = "";
+        let translateShowButton = "-translate-x-full"
+        if (this.props.app.state.hideNavbar) {
+            translateNavbar = "-translate-x-full";
+            translateShowButton = ""
+        }
+        return [
+            e(
+                "div",
+                { className: `fixed z-50 p-2 transition-translate bg-white/70 backdrop-blur-sm rounded-br-lg ${translateShowButton}` },
+                this.getShowButton()
+            ),
+            e(
+                "nav",
+                { className: `fixed z-50 transition-all ${translateNavbar} ${this.getWidth()} text-white text-sm bg-slate-900/70 backdrop-blur-sm h-screen overflow-auto` },
+                e(
+                    "h1",
+                    { className: "sticky relative top-0 left-0 bg-white/80 backdrop-blur-sm text-slate-700 text-l tracking-wide px-3 py-1 mb-1 flex items-center" },
+                    e(
+                        "img",
+                        { src: logo_uri, className: "h-4" }
+                    ),
+                    e(
+                        "span",
+                        { className: "font-bold mx-1" },
+                        "Snakemake"
+                    ),
+                    e(
+                        "span",
+                        { className: "grow mr-5" },
+                        "Report"
+                    ),
+                    this.getHideButton()
+                ),
+                e(
+                    "div",
+                    {},
+                    this.renderBreadcrumbs(),
+                    e(
+                        "div",
+                        { className: "p-3" },
+                        this.renderContent()
+                    )
+                )
+            )
+        ];
+    }
+
+    getHideButton() {
+        let setView = this.props.app.setView;
+        return e(
+            "a",
+            {
+                type: "button",
+                className: "bg-transparent hover:text-emerald-500",
+                href: "#",
+                onClick: () => setView({ hideNavbar: true })
+            },
+            e(
+                Icon,
+                { iconName: "x" }
+            )
+        )
+    }
+
+    getShowButton() {
+        let setView = this.props.app.setView;
+        return e(
+            "a",
+            {
+                type: "button",
+                href: "#",
+                className: "bg-transparent hover:text-emerald-500",
+                onClick: () => setView({ hideNavbar: false })
+            },
+            e(
+                Icon,
+                { iconName: "menu" }
+            )
+        )
+    }
+
+    renderContent() {
+        let setView = this.props.app.setView;
+        switch (this.props.app.state.navbarMode) {
+            case "menu":
+                return e(Menu, { app: this.props.app });
+            case "category":
+                return e(Category, { setView: setView, category: this.props.app.state.category });
+            case "subcategory":
+                return e(Subcategory, { app: this.props.app, setView: setView, category: this.props.app.state.category, subcategory: this.props.app.state.subcategory });
+            case "searchresults":
+                return e(SearchResults, { app: this.props.app, setView: setView, searchTerm: this.props.app.state.searchTerm });
+            case "resultinfo":
+                return e(ResultInfo, { resultPath: this.props.app.state.resultPath, app: this.props.app });
+            case "ruleinfo":
+                return e(RuleInfo, { rule: this.props.app.state.ruleinfo });
+        }
+    }
+
+    renderBreadcrumbs() {
+        let setView = this.props.app.setView;
+        switch (this.props.app.state.navbarMode) {
+            case "menu":
+                return e(
+                    Breadcrumbs,
+                    { entries: [this.getMenuBreadcrumb()], setView: setView }
+                );
+            case "category":
+                return e(
+                    Breadcrumbs,
+                    { entries: [this.getMenuBreadcrumb(), this.getResultBreadcrumb(), this.getCategoryBreadcrumb()], setView: setView }
+                );
+            case "subcategory":
+                return e(
+                    Breadcrumbs,
+                    { entries: [this.getMenuBreadcrumb(), this.getResultBreadcrumb(), this.getCategoryBreadcrumb(), this.getSubcategoryBreadcrumb()], setView: setView }
+                );
+            case "resultinfo":
+                return e(
+                    Breadcrumbs,
+                    { entries: [this.getMenuBreadcrumb(), this.getResultBreadcrumb(), this.getCategoryBreadcrumb(), this.getSubcategoryBreadcrumb(), this.getSearchResultsBreadcrumb(), this.getResultinfoBreadcrumb()], setView: setView }
+                );
+            case "searchresults":
+                return e(
+                    Breadcrumbs,
+                    { entries: [this.getMenuBreadcrumb(), this.getSearchResultsBreadcrumb()], setView: setView }
+                )
+            case "ruleinfo":
+                if (this.props.app.state.resultPath) {
+                    return e(
+                        Breadcrumbs,
+                        { entries: [this.getMenuBreadcrumb(), this.getResultBreadcrumb(), this.getCategoryBreadcrumb(), this.getSubcategoryBreadcrumb(), this.getSearchResultsBreadcrumb(), this.getResultinfoBreadcrumb(), this.getRuleBreadcrumb(), this.getRuleinfoBreadcrumb()], setView: setView }
+                    )
+                } else {
+                    return e(
+                        Breadcrumbs,
+                        { entries: [this.getMenuBreadcrumb(), this.getRuleBreadcrumb(), this.getRuleinfoBreadcrumb()], setView: setView }
+                    )
+                }
+        }
+    }
+
+    getMenuBreadcrumb() {
+        let setView = this.props.app.setView;
+        return { name: "menu", icon: "home", func: function () { setView({ navbarMode: "menu", category: undefined, subcategory: undefined }) } };
+    }
+
+    getRuleBreadcrumb() {
+        return { name: "Rule", func: undefined }
+    }
+
+    getRuleinfoBreadcrumb() {
+        return { name: this.props.app.state.ruleinfo, func: undefined }
+    }
+
+    getCategoryBreadcrumb() {
+        let category = this.props.app.state.category;
+        if (category === undefined) {
+            return undefined;
+        }
+        let subcategory = undefined;
+        let mode = "category";
+        if (isSingleSubcategory(category)) {
+            subcategory = this.props.app.state.subcategory;
+            mode = "subcategory";
+        }
+
+        let name = this.props.app.state.category;
+        if (isSingleDefaultCategory()) {
+            name = "Results";
+        }
+        let setView = this.props.app.setView;
+        return { name: name, func: function () { setView({ navbarMode: mode, category: category, subcategory: subcategory }) } };
+    }
+
+    getSubcategoryBreadcrumb() {
+        let subcategory = this.props.app.state.subcategory;
+        let category = this.props.app.state.category;
+        if (subcategory === undefined || isSingleSubcategory(category)) {
+            return undefined;
+        }
+        let setView = this.props.app.setView;
+        return { name: this.props.app.state.subcategory, func: function () { setView({ navbarMode: "subcategory", category: category, subcategory: subcategory }) } };
+    }
+
+    getResultBreadcrumb() {
+        if (isSingleDefaultCategory()) {
+            return undefined;
+        }
+        return { name: "Results", func: undefined };
+    }
+
+    getSearchResultsBreadcrumb() {
+        let searchTerm = this.props.app.state.searchTerm;
+        if (searchTerm === undefined) {
+            return undefined;
+        }
+        let setView = this.props.app.setView;
+        return {
+            name: "Search results", func: function () {
+                setView({ navbarMode: "searchresults", searchTerm: searchTerm })
+            }
+        };
+    }
+
+    getResultinfoBreadcrumb() {
+        let setView = this.props.app.setView;
+        return {
+            name: this.props.app.state.resultPath, func: function () { setView({ navbarMode: "resultinfo" }) }
+        };
+    }
+
+    getWidth() {
+        switch (this.props.app.state.navbarMode) {
+            case "menu":
+                return "w-1/5 min-w-fit"
+            case "category":
+            case "subcategory":
+            case "searchresults":
+                return "w-1/4 min-w-fit"
+            case "resultinfo":
+                return "w-1/2"
+            case "ruleinfo":
+                return "w-1/2"
+            default:
+                return "w-1/5 min-w-fit"
+        }
+    }
+}</script>
+    <script>'use strict';
+
+
+var app = undefined;
+
+
+class App extends React.Component {
+    constructor(props) {
+        super(props);
+        this.state = { hideNavbar: false, navbarMode: "menu", content: "rulegraph", ruleinfo: undefined, category: undefined, subcategory: undefined, searchTerm: undefined, resultPath: undefined, contentPath: undefined };
+        this.setView = this.setView.bind(this);
+        this.showCategory = this.showCategory.bind(this);
+        this.showResultInfo = this.showResultInfo.bind(this);
+        // store in global variable
+        app = this;
+    }
+
+    render() {
+        return [
+            e(Navbar, { key: "navbar", app: this }),
+            e(ContentDisplay, { key: "content", app: this })
+        ];
+    }
+
+    setView(view) {
+        this.setState({
+            hideNavbar: view.hideNavbar || this.hideNavbar,
+            navbarMode: view.navbarMode || this.state.navbarMode,
+            content: view.content || this.state.content,
+            ruleinfo: view.ruleinfo || this.state.ruleinfo,
+            category: view.category || this.state.category,
+            subcategory: view.subcategory || this.state.subcategory,
+            searchTerm: view.searchTerm || this.state.searchTerm,
+            resultPath: view.resultPath || this.state.resultPath,
+            contentPath: view.contentPath || this.state.contentPath,
+        })
+    }
+
+    showCategory(category) {
+        let subcategory = undefined;
+        let mode = "category";
+        if (isSingleSubcategory(category)) {
+            subcategory = Object.keys(categories[category])[0];
+            mode = "subcategory";
+        }
+        this.setView({ navbarMode: mode, category: category, subcategory: subcategory })
+    }
+
+    showResultInfo(resultPath) {
+        this.setView({ navbarMode: "resultinfo", resultPath: resultPath });
+    }
+}
+
+ReactDOM.render(e(App), document.querySelector('#app'));</script>
+
+    <script>
+    document.querySelector('#loading-screen').style.display = "none";
+    </script>
+
+</body>
 
-      $(document).ready(function() {
-        // Hide loading screen when document is ready.
-        setTimeout(function(){
-            $("#loading-screen").hide();
-        }, 2000);
-      });
-    </script>
-  </body>
 </html>
\ No newline at end of file
diff --git a/tests/test_report/lorem-ipsum.pdf b/tests/test_report/lorem-ipsum.pdf
new file mode 100644
index 000000000..e2727f24a
Binary files /dev/null and b/tests/test_report/lorem-ipsum.pdf differ
diff --git a/tests/test_report/report/workflow.rst b/tests/test_report/report/workflow.rst
index 124933f92..b455d79cf 100644
--- a/tests/test_report/report/workflow.rst
+++ b/tests/test_report/report/workflow.rst
@@ -1 +1 @@
-This is the workflow description. Test reference fig1.svg_.
+This is the workflow description. Test reference fig1.svg_. And a reference to a category `Step 2`_.