Correlation context docs (#490)

Co-authored-by: Alex Boten <aboten@lightstep.com>
Co-authored-by: Diego Hurtado <ocelotl@users.noreply.github.com>

docs/api/api.rst

@@ -8,5 +8,6 @@ OpenTelemetry Python API
 
     configuration
     context
+    correlationcontext
     metrics
     trace

docs/api/correlationcontext.propagation.rst

@@ -0,0 +1,7 @@
+opentelemetry.correlationcontext.propagation package
+====================================================
+
+Module contents
+---------------
+
+.. automodule:: opentelemetry.correlationcontext.propagation

docs/api/correlationcontext.rst

@@ -0,0 +1,14 @@
+opentelemetry.correlationcontext package
+========================================
+
+Subpackages
+-----------
+
+.. toctree::
+
+   correlationcontext.propagation
+
+Module contents
+---------------
+
+.. automodule:: opentelemetry.correlationcontext

opentelemetry-api/src/opentelemetry/correlationcontext/__init__.py

@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import abc
 import typing
 
 from opentelemetry.context import get_value, set_value
@@ -24,7 +23,7 @@
 def get_correlations(
     context: typing.Optional[Context] = None,
 ) -> typing.Dict[str, object]:
-    """ Returns the name/value pairs in the CorrelationContext
+    """Returns the name/value pairs in the CorrelationContext
 
     Args:
         context: The Context to use. If not set, uses current Context
@@ -41,7 +40,8 @@ def get_correlations(
 def get_correlation(
     name: str, context: typing.Optional[Context] = None
 ) -> typing.Optional[object]:
-    """ Provides access to the value for a name/value pair in the CorrelationContext
+    """Provides access to the value for a name/value pair in the
+    CorrelationContext
 
     Args:
         name: The name of the value to retrieve
@@ -76,6 +76,7 @@ def remove_correlation(
     name: str, context: typing.Optional[Context] = None
 ) -> Context:
     """Removes a value from the CorrelationContext
+
     Args:
         name: The name of the value to remove
         context: The Context to use. If not set, uses current Context
@@ -91,6 +92,7 @@ def remove_correlation(
 
 def clear_correlations(context: typing.Optional[Context] = None) -> Context:
     """Removes all values from the CorrelationContext
+
     Args:
         context: The Context to use. If not set, uses current Context
 

opentelemetry-api/src/opentelemetry/correlationcontext/propagation/__init__.py

@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-import re
 import typing
 import urllib.parse
 
@@ -36,9 +35,10 @@ def extract(
         carrier: httptextformat.HTTPTextFormatT,
         context: typing.Optional[Context] = None,
     ) -> Context:
-        """ Extract CorrelationContext from the carrier.
+        """Extract CorrelationContext from the carrier.
 
-        See `opentelemetry.trace.propagation.httptextformat.HTTPTextFormat.extract`
+        See
+        `opentelemetry.trace.propagation.httptextformat.HTTPTextFormat.extract`
         """
 
         if context is None:
@@ -79,7 +79,8 @@ def inject(
     ) -> None:
         """Injects CorrelationContext into the carrier.
 
-        See `opentelemetry.trace.propagation.httptextformat.HTTPTextFormat.inject`
+        See
+        `opentelemetry.trace.propagation.httptextformat.HTTPTextFormat.inject`
         """
         correlations = correlationcontext.get_correlations(context=context)
         if not correlations: