code: def createStopOrder(self, action, instrument, stopPrice, quantity):
      raise Exception("Stop orders are not supported")
  
file_path: pyalgotrade/pyalgotrade/bitstamp/broker.py
imports: from pyalgotrade import broker
  from pyalgotrade.broker import backtesting
  from pyalgotrade.bitstamp import common
  from pyalgotrade.bitstamp import livebroker
label_desc: Use image node_id 6 for calling the BacktestingBroker obj's underlying member method code with example usage: obj.createStopOrder(action, instrument, stopPrice, quantity) without return types