code: def tradeBreakWS(symbols=None, on_data=None):
      '''https://iextrading.com/developer/docs/#trade-break'''
      symbols = _strToList(symbols)
      sendinit = ({'symbols': symbols, 'channels': ['tradebreaks']},)
      return _stream(_wsURL('deep'), sendinit, on_dataf tradeBreakWS(symbols=None, on_data=None):
      '''https://iextrading.com/developer/docs/#trade-break'''
      symbols = _strToList(symbols)
      sendinit = ({'symbols': symbols, 'channels': ['tradebreaks']},)
      return _stream(_wsURL('deep'), sendinit, on_data)
docs: https://iextrading.com/developer/docs/#trade-break