code: def setBrokerOrdersGTC(self, gtc):
      self.__brokerOrdersGTC = gtc
  
imports: import datetime
  from .None import common
  from pyalgotrade import strategy
  from pyalgotrade import broker
  from pyalgotrade.barfeed import yahoofeed
label_desc: Use image node_id 3 for calling the TestStrategy obj's underlying member method code with example usage: obj.setBrokerOrdersGTC(gtc) without return types