class_docstr: Test the config system.
class_docstr_tok: ["Test","the","config","system","."]
code: def setUp(self):
      self.patches = [
          patch.object(
              config,
              "_section_descriptions",
              new=copy.deepcopy(SECTION_DESCRIPTIONS),
          ),
          patch.object(
              config,
              "_config_options",
              new=copy.deepcopy(CONFIG_OPTIONS),
          ),
          patch.dict(os.environ),
      ]
  
      for p in self.patches:
          p.start()
  
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 1 for calling the ConfigTest obj's underlying member method code with example usage: obj.setUp() without return types