code: def test_env_defaults(tmpdir: Path) -> None:
      cmd = [
          "tests/test_apps/custom_env_defaults/my_app.py",
          "hydra.run.dir=" + str(tmpdir),
          "hydra.job.chdir=True",
      ]
      run_python_script(cmd)
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_env_defaults(tmpdir) without return types