code: def test_read_only_mode(self):
      pass
  
imports: import contextlib
  import os
  import time
  import unittest
  from abc import abstractmethod
  from io import StringIO
  from unittest.mock import Mock
  from neptune.exceptions import MetadataInconsistency, MissingFieldException, NeptuneOfflineModeFetchException, NeptuneSynchronizationAlreadyStoppedException, TypeDoesNotSupportAttributeException
label_desc: Use image node_id 14 for calling the AbstractExperimentTestMixin obj's underlying member method code with example usage: obj.test_read_only_mode() without return types