code: def client():
      """Mock client.
  
      Considerations when appropriate:
  
          * utilize botocore.stub.Stubber
          * separate runtime client from client
      """
      client_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
  
imports: from __future__ import absolute_import
  import json
  import os
  import shutil
  import tempfile
  from mock import Mock, PropertyMock, call
  import pytest
  from src.sagemaker.experiments._helper import _LineageArtifactTracker, _ArtifactUploader
  from src.sagemaker.experiments._utils import resolve_artifact_name
  from src.sagemaker.session import Session
  from tests.unit import _test_default_bucket_and_prefix_combinations, DEFAULT_S3_OBJECT_KEY_PREFIX_NAME, DEFAULT_S3_BUCKET_NAME
label_desc: Use image node_id 1 for calling a global function with example usage: client() and returns: client_mock