code: def __str__(self):
      return str(self.__eventDict)
  
imports: import json
  from six.moves.urllib.parse import urlencode
  import pyalgotrade
  from pyalgotrade.websocket import client
  import pyalgotrade.logger
label_desc: Use image node_id 2 for calling the Event obj's underlying member method code with example usage: obj.__str__() and returns: str