TYP tighten `any` return type

[MarcoGorelli]

Currently, any returns Series | bool.

However, for DataFrame.any the return type should be Series, and for Series.any the return type should be bool.

Marking as good first issue, but please only attempt this if you already have some experience with Python typing and mypy.

[sglambert]

Hi @MarcoGorelli I've always wanted to contribute to Pandas. Would I be able to be assigned this issue? Cheers

[MarcoGorelli]

If you're familiar with mypy, sure, I'll assign you

[yadav-sachin]

@sglambert
I want to take this issue. I have implemented some ideas.
Are you still working on it?

[MarcoGorelli]

@yadav-sachin I think you're OK to take this on if you want