Incompatible generic types with asynccontextmanager #11660

from typing import Type, TypeVar, AsyncIterator, Iterator, Generic
import contextlib

T = TypeVar("T")


@contextlib.contextmanager
def create(my_type: Type[T]) -> Iterator[T]:
    yield my_type()


@contextlib.asynccontextmanager
async def async_create(my_type: Type[T]) -> AsyncIterator[T]:
    yield my_type()


class Foo(Generic[T]):
    def do_something(self, t: T) -> None:
        pass

    def example(self, my_type: Type[T]) -> None:
        with create(my_type) as value1:
            self.do_something(value1)

    async def async_example(self, my_type: Type[T]) -> None:
        async with async_create(my_type) as value2:
            self.do_something(value2)