class_docstr: Tests that involve loading the config.toml file.
class_docstr_tok: ["Tests","that","involve","loading","the","config.toml","file","."]
docstr: Test that we can initialize our config even if the file is missing.
code: def test_missing_config(self):
      """Test that we can initialize our config even if the file is missing."""
      with patch("streamlit.config.os.path.exists") as path_exists:
          path_exists.return_value = False
          config.get_config_options()
  
          self.assertEqual(True, config.get_option("client.caching"))
          self.assertIsNone(config.get_option("theme.font"))
  
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 3 for calling the ConfigLoadingTest obj's underlying member method code with example usage: obj.test_missing_config() without return types