code: def test_callable_saved_model_compatibility(self):
      trackable = IncrementWhenSave()
      trackable.read_counter.assign(15)
      save_path = os.path.join(self.get_temp_dir(), "saved_model")
      with self.assertRaisesRegex(
          NotImplementedError, "returns a Callable"
      ):
          saved_model_save.save(trackable, save_path)
  
file_path: tensorflow/tensorflow/python/checkpoint/tensor_callable_test.py
imports: import os
  from tensorflow.python.checkpoint import checkpoint
  from tensorflow.python.checkpoint import tensor_callable
  from tensorflow.python.eager import test
  from tensorflow.python.ops import variables
  from tensorflow.python.saved_model import save
  from tensorflow.python.trackable import base
label_desc: Use image node_id 2 for calling the CallableTest obj's underlying member method code with example usage: obj.test_callable_saved_model_compatibility() without return types