add instrument to subscribe live data

I have live code like this

sub_list=[738561, 5633]
from kiteconnect import KiteTicker
kws = KiteTicker(api, access_token)
def on_ticks(ws, ticks):
    print(ticks)
def on_connect(ws, response):
    ws.subscribe(sub_list)
    ws.set_mode(ws.MODE_FULL, sub_list)
def on_close(ws, code, reason):
    ws.stop()
kws.on_ticks = on_ticks
kws.on_connect = on_connect
kws.on_close = on_close
kws.connect()

in this I have subscribed to two tickers for live data

I want to add some more token to this live data how can I do this without stoping it