code: def test_list_empty(sagemaker_session):
      sagemaker_session.sagemaker_client.list_actions.return_value = {
          "ActionSummaries": []
      }
      assert [] == list(
          action.Action.list(sagemaker_session=sagemaker_session)
      )
  
file_path: sagemaker-python-sdk/tests/unit/sagemaker/lineage/test_action.py
imports: from __future__ import absolute_import
  import datetime
  import unittest.mock
  from sagemaker.lineage import action, _api_types
  from sagemaker.lineage._api_types import ActionSource
label_desc: Use image node_id 7 for calling a global function with example usage: test_list_empty(sagemaker_session) without return types