Can I use folder type for an alias output?

[chriswmackey]

It seems that, at the moment, all output aliases are meant to be for the OutputAlias.any type. I guess this makes sense when a handler can can potentially take something like a file or folder and turn it into a list of numbers. However, the comfort recipes have some outputs that have no handlers are pretty much always intended to be folders like this output here:

https://github.com/pollination/pollination-alias/blob/master/pollination/alias/outputs/comfort.py#L82

I still want to add an alias so that I can overwrite the description and variable name to something suitable for a Grasshopper component. But, if I change the type of the output above to OutputAlias.folder and I translate a recipe using the alias like adaptive-comfort-map, I get an esoteric pydantic error wheneven I go to translate the recipe with pollination-dsl:

C:\Users\chris\Documents\GitHub\recipes\adaptive-comfort-map>pollination dsl translate adaptive-comfort-map C:\ladybug\tests --luigi
loading recipe: pollination-adaptive-comfort-map
Traceback (most recent call last):
  File "c:\users\chris\appdata\local\programs\python\python37\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "c:\users\chris\appdata\local\programs\python\python37\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Users\chris\AppData\Local\Programs\Python\Python37\Scripts\pollination.exe\__main__.py", line 7, in <module>
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\click\core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\click\core.py", line 782, in main
    rv = self.invoke(ctx)
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\click\core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\click\core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\click\core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\click\core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\click\decorators.py", line 21, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\pollination_dsl\cli.py", line 81, in translate_recipe
    recipe = load(recipe_name, baked=True)
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\pollination_dsl\package.py", line 168, in load
    package = _load_recipe(module, baked)
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\pollination_dsl\package.py", line 118, in _load_recipe
    qb_dag = main_dag.queenbee
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\pollination_dsl\dag\base.py", line 68, in queenbee
    outputs.append(method.to_queenbee(name=method_name))
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\pollination_dsl\dag\outputs.py", line 89, in to_queenbee
    'alias': [al.to_queenbee().dict() for al in self.alias]
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\pollination_dsl\dag\outputs.py", line 89, in <listcomp>
    'alias': [al.to_queenbee().dict() for al in self.alias]
  File "c:\users\chris\appdata\local\programs\python\python37\lib\site-packages\pollination_dsl\alias\outputs.py", line 92, in to_queenbee
    return func.parse_obj(data)
  File "pydantic\main.py", line 572, in pydantic.main.BaseModel.parse_obj
  File "pydantic\main.py", line 400, in pydantic.main.BaseModel.__init__
pydantic.error_wrappers.ValidationError: 1 validation error for DAGFolderOutputAlias
from
  field required (type=value_error.missing)