code: def checkpoint_s3_location(sagemaker_session):
      def random_s3_uri():
          return "".join(
              random.choices(
                  string.ascii_uppercase + string.digits, k=10
              )
          )
  
      return "s3://{}/rm-func-checkpoints/{}".format(
          sagemaker_session.default_bucket(), random_s3_uri()
      )
  
imports: from __future__ import absolute_import
  import time
  from typing import Union
  import pytest
  import os
  import logging
  import random
  import string
  import pandas
  import subprocess
  import shlex
  from sagemaker.experiments.run import Run, load_run
  from sagemaker.remote_function import CheckpointLocation
  from tests.integ.sagemaker.experiments.helpers import cleanup_exp_resources
  from sagemaker.experiments.trial_component import _TrialComponent
  from sagemaker.experiments._api_types import _TrialComponentStatusType
  from sagemaker.remote_function import remote
  from sagemaker.remote_function.spark_config import SparkConfig
  from sagemaker.remote_function.custom_file_filter import CustomFileFilter
  from sagemaker.remote_function.runtime_environment.runtime_environment_manager import RuntimeEnvironmentError
  from sagemaker.remote_function.errors import DeserializationError, SerializationError
  from sagemaker.utils import unique_name_from_base
  from tests.integ.kms_utils import get_or_create_kms_key
  from tests.integ import DATA_DIR
  from tests.integ.s3_utils import assert_s3_files_exist
label_desc: Use image node_id 2 for calling a global function with example usage: checkpoint_s3_location(sagemaker_session) and returns: str, str