Error seems unrelated:

commitizen/commands/init.py:50: error: Argument "choices" to "select" has incompatible type "List[str]"; expected "List[Union[str, Choice, Dict[str, Any]]]"

I'm still trying to understand this issue. It seems related to https://mypy.readthedocs.io/en/stable/generics.html#variance-of-generic-types

I think it's related to questionary, but not sure.
we could skip linting there by adding a comment: # type: ignore
When I have more time I'll check again

I've opened a ticket on mypy python/mypy#9555

I think that is not actually a bug but rather how mypy is designed.
python/mypy#3351

The error message of this issue is as followed.

commitizen/commands/init.py:50: error: Argument "choices" to "select" has incompatible type "List[str]"; expected "List[Union[str, Choice, Dict[str, Any]]]"
commitizen/commands/init.py:50: note: "List" is invariant -- see http://mypy.readthedocs.io/en/latest/common_issues.html#variance
commitizen/commands/init.py:50: note: Consider using "Sequence" instead, which is covariant
commitizen/commands/init.py:82: error: Argument "choices" to "select" has incompatible type "Optional[List[str]]"; expected "List[Union[str, Choice, Dict[str, Any]]]"

In mypy doc, it explains how we might be able to solve this problem. However, the type annotation is located in questionary. I'm still trying to figure out what's the better way to solve this problem.
If questionary uses Sequence[Union[Text, Choice, Dict[Text, Any]]] instead, we might not encounter this problem.

As for line 82, it's probably an error I created. I discussed it with the author or #279 offline, we'll fix that one.

Can u rebase the PR? Thanks

Hopefully that should do it, although let me know if it didn't. I'm happy to squash my commits if necessary, although I left them as two separate ones since one's for the docs and the other is for the workflow.

(I like the summary above ☝by the way)

Left them as separate commits is great! Thanks for your great work! Let's merge it 😃