class_docstr: Test the config system.
class_docstr_tok: ["Test","the","config","system","."]
code: def tearDown(self):
      for p in self.patches:
          p.stop()
  
      config._delete_option("_test.tomlTest")
  
imports: import copy
  import os
  import textwrap
  import unittest
  from unittest.mock import MagicMock, mock_open, patch
  import pytest
  from parameterized import parameterized
  from streamlit import config, env_util
  from streamlit.config_option import ConfigOption
  from streamlit.errors import StreamlitAPIException
label_desc: Use image node_id 2 for calling the ConfigTest obj's underlying member method code with example usage: obj.tearDown() without return types