async def METHOD_NAME(_app: web.Application):
    assert first_call_on_startup_spy.called
    assert not first_call_on_cleanup_spy.called
    # What if I add one more background task here?? OK
    _app[APP_FIRE_AND_FORGET_TASKS_KEY].add(
        asyncio.create_task(asyncio.sleep(100), name="shutdown")
    )