class_docstr: Test the config system.
class_docstr_tok: ["Test","the","config","system","."]
code: def test_maybe_convert_to_number(self):
      self.assertEqual(1234, config._maybe_convert_to_number("1234"))
      self.assertEqual(
          1234.5678, config._maybe_convert_to_number("1234.5678")
      )
      self.assertEqual(
          "1234.5678ex", config._maybe_convert_to_number("1234.5678ex")
      )
  
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 23 for calling the ConfigTest obj's underlying member method code with example usage: obj.test_maybe_convert_to_number() without return types