class_docstr: Wrap around it to check its logic; also makes it easier to do things w/ underlying
  World.
code: def _save_outputs(self, opt, world, logger, episode_metrics):
      self.world = world
      self.logger = logger
      self.episode_metrics = episode_metrics
  
imports: import copy
  import unittest
  from parlai.core.metrics import dict_report
  from parlai.core.opt import Opt
  from parlai.core.tod.tod_core import SerializationHelpers
  import parlai.core.tod.tod_test_utils.test_agents
  from parlai.core.tod.world_metrics_handlers import METRICS_HANDLER_CLASSES_TEST_REGISTRY
  import parlai.scripts.tod_world_script
  import projects.tod_simulator.world_metrics.extended_world_metrics
label_desc: Use image node_id 3 for calling the TestTodWorldScript obj's underlying member method code with example usage: obj._save_outputs(opt, world, logger, episode_metrics) without return types