def __init__(self, **kwargs):
    'Initialize.'
    self._platform = kwargs['platform']
    self._symbols = kwargs['symbols']
    self._host = 'https://ftx.com'
    self._wss = 'wss://ftx.com'
    url = (self._wss + '/ws')
    super(FTXMarket, self).__init__(url, send_hb_interval=15, **kwargs)
    self.heartbeat_msg = {'op': 'ping'}
    self._rest_api = FTXRestAPI(self._host, None, None, None)
    self._orderbooks: DefaultDict[(str, Dict[(str, DefaultDict[(float, float)])])] = defaultdict((lambda : {side: defaultdict(float) for side in {'bids', 'asks'}}))
    self.initialize()
Initialize.
def __init__(self, **kwargs):
    
    self._platform = kwargs['platform']
    self._symbols = kwargs['symbols']
    self._host = 'https://ftx.com'
    self._wss = 'wss://ftx.com'
    url = (self._wss + '/ws')
    super(FTXMarket, self).__init__(url, send_hb_interval=15, **kwargs)
    self.heartbeat_msg = {'op': 'ping'}
    self._rest_api = FTXRestAPI(self._host, None, None, None)
    self._orderbooks: DefaultDict[(str, Dict[(str, DefaultDict[(float, float)])])] = defaultdict((lambda : {side: defaultdict(float) for side in {'bids', 'asks'}}))
    self.initialize()