code: def _run_test(self):
      self._run_test_helper(test_agents.EPISODE_SETUP__SINGLE_API_CALL)
      self._run_test_helper(test_agents.EPISODE_SETUP__MULTI_ROUND)
      self._run_test_helper(test_agents.EPISODE_SETUP__MULTI_EPISODE)
      self._run_test_helper(test_agents.EPISODE_SETUP__MULTI_EPISODE_BS)
  
imports: import copy
  import unittest
  import parlai.core.tod.tod_test_utils.test_agents
  import parlai.scripts.tod_world_script
  from parlai.core.tod.tod_agents import StandaloneApiAgent
  from parlai.core.tod.world_metrics_handlers import METRICS_HANDLER_CLASSES_TEST_REGISTRY
  from parlai.core.metrics import dict_report
  import projects.tod_simulator.world_metrics.extended_world_metrics
label_desc: Use image node_id 3 for calling the TodWorldInScriptTestBase obj's underlying member method code with example usage: obj._run_test() without return types