code: def test_01_04_old_users_directory(self):
      gotcha = "c:\\users\\default"
      cellprofiler_core.preferences.set_preferences_from_dict(
          {}
      )  # clear cache
      cellprofiler_core.preferences.get_config().Write(
          "test_preferences", gotcha
      )
      result = cellprofiler_core.preferences.config_read(
          "test_preferences"
      )
      assert result == gotcha
  
file_path: CellProfiler/tests/core/preferences/test_preferences.py
imports: import tempfile
  import unittest
  import cellprofiler_core.preferences
label_desc: Use image node_id 4 for calling the TestPreferences obj's underlying member method code with example usage: obj.test_01_04_old_users_directory() without return types