code: def sagemaker_client():
      return boto3.client("sagemaker", region_name="us-west-2")
  
imports: import boto3
  import pytest
  from tests.helper_functions import set_boto_credentials
  from tests.sagemaker.mock import mock_sagemaker
label_desc: Use image node_id 1 for calling a global function with example usage: sagemaker_client() and returns: boto3