Generalize replace() function

Ideas
20

That’s awesome!!

Will the typeshed have an appropriate base class? Maybe something like:

class SupportsReplace[**P]:
    def __replace__(self, **kwargs: P.kwargs) -> Self:
        ...

# copy.replace:
def replace[T: SupportsReplace[P], **P](obj: T, /, **changes: P.kwargs) -> T:
    ...

I’m not sure if the latter annotation is allowed?