code: def test_save_load(trial_obj, sagemaker_session):
      trial_obj.display_name = "foo"
      trial_obj.save()
      assert (
          "foo"
          == trial._Trial.load(
              trial_name=trial_obj.trial_name,
              sagemaker_session=sagemaker_session,
          ).display_name
      )
  
imports: from __future__ import absolute_import
  import logging
  from sagemaker.experiments import trial
  from src.sagemaker.utils import retry_with_backoff
label_desc: Use image node_id 3 for calling a global function with example usage: test_save_load(trial_obj, sagemaker_session) without return types