code: def __init__(self, opt, shared=None):
      super().__init__(opt)
      assert "is_upgraded" in opt
      assert opt["is_upgraded"] is True
  
imports: import os
  import json
  import unittest
  from parlai.core.params import ParlaiParser
  import parlai.core.agents
  import parlai.utils.testing
label_desc: Use image node_id 1 to create a new _ExampleUpgradeOptAgent object from inherited base classes: agents with example: obj = _ExampleUpgradeOptAgent(opt, shared)