Generic ParamSpec in subclass definitions

Given some base class that is generic over a param-spec, I'd like to be able to define the param-spec using a subclass method implementation. Something like:

T = TypeVar("T")
P = ParamSpec("P")

class Base(Generic[P, T]):
    func: Callable[P, T]
    # for instance
    def wrapper(self, *args: P.args, **kwargs: P.kwargs) -> Tuple[T]:
        return (self.func(*args, **kwargs), )
        
class Subclass(Base):
    def func(self, x: int, *, y: str) -> bytes: ...

That is, the base class is generic over some function definition, and the subclass implement that function as a method. I'm not sure how common this pattern is, but I see it a fair amount when the class gets more complicated and you can't just use a decorator (e.g. torch.nn.Module.forward is a big example of this). Is there some other way of specifying "infer the parameters from this method implementation"? Is this something that would require an update to the specification, is it "just" a feature request to the method implementation "like" an assignment statement?

Aucun fichier, test ou point d’entrée de l’implémentation n’est indiqué. Commencez par examiner l’exemple de ParamSpec, Generic et de méthode de sous-classe de l’issue avec la spécification du typage Python ; déterminez si l’inférence demandée est prise en charge ou nécessite une modification de la spécification. Le travail est considéré comme terminé lorsque le comportement et le périmètre de son implémentation sont explicitement décidés.