code: def getPrice(self):
      return self.__price
  
imports: import datetime
  import time
  from six.moves import queue
  from pyalgotrade import bar
  from pyalgotrade import barfeed
  from pyalgotrade import observer
  from pyalgotrade.bitstamp import common
  from pyalgotrade.bitstamp import wsclient
label_desc: Use image node_id 15 for calling the TradeBar obj's underlying member method code with example usage: obj.getPrice() and returns: self