code: def test_set_global_experiment(self, experiment, offline_experiment):
      for option in ["online", "offline"]:
          logger = self.loggers[option]
          with patch("comet_ml.config.set_global_experiment") as mock:
              logger.log_trial_start(self.trials[0])
              mock.assert_called_with(None)
              mock.assert_called_once()
              mock.reset_mock()
  
imports: import unittest
  from unittest.mock import patch
  from ray.air.integrations.comet import CometLoggerCallback
  from collections import namedtuple
label_desc: Use image node_id 3 for calling the LogTrialStartTest obj's underlying member method code with example usage: obj.test_set_global_experiment(experiment, offline_experiment) without return types