Function agen

src/trio/_core/_tests/test_guest_mode.py:686–694

(label: str)

    record = set()

    async def agen(label: str) -> AsyncGenerator[int, None]:
        assert sniffio.current_async_library() == label
        try:
            yield 1
        finally:
            library = sniffio.current_async_library()
            with contextlib.suppress(trio.Cancelled):
                await sys.modules[library].sleep(0)
            record.add((label, library))

    async def iterate_in_aio() -> None:
        await agen("asyncio").asend(None)