Coroutine,
    Generator,
    Iterator,
    Mapping,
    Sequence,
)
from contextlib import (
    AbstractAsyncContextManager,
    AbstractContextManager,
    AsyncExitStack,
    asynccontextmanager,
)
from enum import Enum, IntEnum
from typing import (
    Annotated,
    Any,
    TypeVar,
    cast,
)

import anyio
from annotated_doc import Doc
from anyio.abc import ObjectReceiveStream