How to use the aioitertools.asyncio function in aioitertools

while pending:
        if timeout:
            remaining = threshold - time.time()
            if remaining <= 0:
                raise asyncio.TimeoutError()

        # asyncio.Future inherits from typing.Awaitable
        # asyncio.wait takes Iterable[Union[Future, Generator, Awaitable]], but
        # returns Tuple[Set[Future], Set[Future]. Because mypy doesn't like assigning
        # these values to existing Set[Awaitable] or even Set[Union[Awaitable, Future]],
        # we need to first cast the results to something that we can actually use
        # asyncio.Future: https://github.com/python/typeshed/blob/72ff7b94e534c610ddf8939bacbc55343e9465d2/stdlib/3/asyncio/futures.pyi#L30
        # asyncio.wait(): https://github.com/python/typeshed/blob/72ff7b94e534c610ddf8939bacbc55343e9465d2/stdlib/3/asyncio/tasks.pyi#L89
        done, pending = cast(
            Tuple[Set[Awaitable[T]], Set[Awaitable[T]]],
            await asyncio.wait(
                pending,
                loop=loop,
                timeout=remaining,
                return_when=asyncio.FIRST_COMPLETED,
            ),
        )

        for item in done:
            yield await item