Make keyword argument immutable (#2264)
Make keyword argument immutable (#2264)


rutsky/aiohttp,arthurdarcet/aiohttp,arthurdarcet/aiohttp,rutsky/aiohttp,arthurdarcet/aiohttp,KeepSafe/aiohttp,pfreixes/aiohttp,KeepSafe/aiohttp,rutsky/aiohttp,hellysmile/aiohttp,pfreixes/aiohttp,KeepSafe/aiohttp,playpauseandstop/aiohttp,hellysmile/aiohttp