async def _solve_generator(
    *, dependant: Dependant, stack: AsyncExitStack, sub_values: dict[str, Any]
) -> Any:
    assert dependant.call
    if dependant.is_async_gen_callable:
        cm = asynccontextmanager(dependant.call)(**sub_values)
    elif dependant.is_gen_callable:
        cm = contextmanager_in_threadpool(contextmanager(dependant.call)(**sub_values))
    return await stack.enter_async_context(cm)


@dataclass