code: def are_tests_running():
      """Return whether we are running the pytest test loader."""
      return "PYTEST_CURRENT_TEST" in os.environ
  
file_path: nilearn/nilearn/_utils/testing.py
imports: import functools
  import gc
  import os
  import sys
  import tempfile
  import warnings
  from pathlib import Path
  import pytest
label_desc: Use image node_id 6 for calling a global function with example usage: are_tests_running() and returns: unknown