code: def test_config_not_found(tmp_path):
      with pytest.raises(ConfigError):
          Config.read(tmp_path)
  
imports: import pickle
  import time
  from pathlib import Path
  from unittest import mock
  import pytest
  import sphinx
  from sphinx.builders.gettext import _gettext_compact_validator
  from sphinx.config import ENUM, Config, _Opt, check_confval_types
  from sphinx.deprecation import RemovedInSphinx90Warning
  from sphinx.errors import ConfigError, ExtensionError, VersionRequirementError
label_desc: Use image node_id 3 for calling a global function with example usage: test_config_not_found(tmp_path) without return types