code: def test_global_config_dir_respects_env_var(monkeypatch):
      path = "/some/random/path"
      monkeypatch.setenv(DVC_GLOBAL_CONFIG_DIR, path)
      assert global_config_dir() == path
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_global_config_dir_respects_env_var(monkeypatch) without return types