Make as_manager() in queryset generic instead of using Any

[silviogutierrez]

Bug report

What's wrong

as_manager() on querysets currently uses Any instead of _T.

Like so:

# django-stubs/db/models/query.pyi
    @classmethod
    def as_manager(cls) -> Manager[Any]: ...

How is that should be

Looks like a simple switch to _T fixes it:

# django-stubs/db/models/query.pyi
    @classmethod
    def as_manager(cls) -> Manager[_T]: ...

See https://docs.djangoproject.com/en/3.0/topics/db/managers/#creating-a-manager-with-queryset-methods for more info.

[sobolevn]

@silviogutierrez would you please send a PR?

[silviogutierrez]

@sobolevn done!

[aitorres]

Hello! Is there any updates on this issue? Any way I could help make a new PR / update an existing PR to solve it? I just ran into this issue on my project too.