code: def testPickleSubmodule(self):
      name = PickleTest.__module__  # The current module is a submodule.
      module = module_wrapper.TFModuleWrapper(MockModule(name), name)
      restored = pickle.loads(pickle.dumps(module))
      self.assertEqual(restored.__name__, name)
      self.assertIsNotNone(restored.PickleTest)
  
imports: import pickle
  import types
  from tensorflow.python.platform import test
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.util import module_wrapper
  from tensorflow.python.util import tf_inspect
  from tensorflow.tools.compatibility import all_renames_v2
label_desc: Use image node_id 1 for calling the PickleTest obj's underlying member method code with example usage: obj.testPickleSubmodule() without return types