Function auto_refresh_client

docs/code/client_middleware_cookbook.py:107–115

()

    @asynccontextmanager
    async def auto_refresh_client() -> AsyncIterator[ClientSession]:
        async with ClientSession() as session:
            ready = asyncio.Event()
            t = asyncio.create_task(set_token(session, ready))
            await ready.wait()
            yield session
            t.cancel()
            with suppress(asyncio.CancelledError):
                await t

    async with auto_refresh_client() as sess:
        ...