generic type experimental

generic_type_experimental.py

# "python.analysis.typeCheckingMode": "strict",
from typing import Generic, TypeVar

T = TypeVar('T')

class MyClass(Generic[T]):
    def run(self, x: T) -> T:
        return x

class ExtendedMyClass(MyClass[int]):
    def run(self, x: int) -> int:
        return x

class ExtendedInt(int):
    pass

d: dict[type[int], type[MyClass[int]]] = { ExtendedInt: ExtendedMyClass }