Taking the argument signature from a different function

[Viicos]

@Tinche

These functions all take *args, **kwargs and use them to call this __init__. I want all of these functions to have the same input parameters as this __init__ at type-checking time, and not *args: Any, **kwargs: Any.

Are you requesting something similar to:

Add a `same_definition_as_in`

I keep writing the following construct when I want to say that my __init__ or any other method has the same arguments as the same method in the parent class. It is mostly useful when you want your library to be fully compatible with any breaking changes of another library’s interface so you use **kwargs but you still want your users to have nice IDE support. _T = TypeVar("_T", bound=Callable) def same_definition_as_in(t: _T) -> Callable[[Callable], _T]: def decorator(f: Callable) -> _T: …

?