code: def getInstrumentsAndBars(self):
      return self.__instrumentsAndBars
  
imports: import threading
  import time
  from six.moves import xmlrpc_server
  import pyalgotrade.logger
  from pyalgotrade.optimizer import base
  from pyalgotrade.optimizer import serialization
label_desc: Use image node_id 2 for calling the Server obj's underlying member method code with example usage: obj.getInstrumentsAndBars() and returns: self