Rewrite examples/client_ws.py
Rewrite examples/client_ws.py

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