code: def test_no_environment():
      assert _environment._RunEnvironment.load() is None
  
file_path: sagemaker-python-sdk/tests/unit/sagemaker/experiments/test_environment.py
imports: from __future__ import absolute_import
  import json
  import os
  import shutil
  import tempfile
  import unittest.mock
  import pytest
  from sagemaker.experiments import _environment
  from sagemaker.experiments._environment import TRANSFORM_JOB_ARN_ENV, TRAINING_JOB_ARN_ENV
  from sagemaker.utils import retry_with_backoff
label_desc: Use image node_id 7 for calling a global function with example usage: test_no_environment() without return types