updating websocket example for Future Pyhton SDK

[hedayat-bazafkan]

Example update for deprectaing endpoint

import asyncio
from kucoin_futures.client import WsToken
from kucoin_futures.ws_client import KucoinFuturesWsClient

async def main():
async def deal_msg(msg):
if msg['topic'] == '/contractMarket/level2:XBTUSDM':
print(f'Get XBTUSDM Ticker:{msg["data"]}')

# is public

client = WsToken(is_sandbox=True)
ws_client = await KucoinFuturesWsClient.create(loop, client, deal_msg, private=False)
await ws_client.subscribe('/contractMarket/level2:XBTUSDM')

while True:
    await asyncio.sleep(60)

if name == "main":
loop = asyncio.get_event_loop()
loop.run_until_complete(main())