class_docstr: Test the config system.
class_docstr_tok: ["Test","the","config","system","."]
code: def test_sections_order(self):
      sections = sorted(
          [
              "_test",
              "browser",
              "client",
              "theme",
              "deprecation",
              "global",
              "logger",
              "magic",
              "mapbox",
              "runner",
              "server",
              "ui",
          ]
      )
      keys = sorted(list(config._section_descriptions.keys()))
      self.assertEqual(sections, keys)
  
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 18 for calling the ConfigTest obj's underlying member method code with example usage: obj.test_sections_order() without return types