code: def client():
      """Mock client.
  
      Considerations when appropriate:
  
          * utilize botocore.stub.Stubber
          * separate runtime client from client
      """
      client_mock = unittest.mock.Mock()
      client_mock._client_config.user_agent = "Boto3/1.14.24 Python/3.8.5 Linux/5.4.0-42-generic Botocore/1.17.24 Resource"
      return client_mock
  
file_path: sagemaker-python-sdk/tests/unit/sagemaker/experiments/conftest.py
imports: from __future__ import absolute_import
  import unittest
  from unittest.mock import patch, MagicMock, Mock
  import pytest
  from sagemaker import Session
  from sagemaker.experiments.experiment import Experiment
  from sagemaker.experiments.run import RUN_NAME_BASE
  from sagemaker.experiments import Run
  from tests.unit.sagemaker.experiments.helpers import mock_tc_load_or_create_func, mock_trial_load_or_create_func, TEST_EXP_NAME
label_desc: Use image node_id 1 for calling a global function with example usage: client() and returns: client_mock