code: def test_convert_no_saveable(self):
      t = base.Trackable()
      converter = _create_converted_trackable(t)
      self.assertEmpty(converter._serialize_to_tensors())
      converter._restore_from_tensors({})
  
      with self.assertRaisesRegex(
          ValueError, "Could not restore object"
      ):
          converter._restore_from_tensors({"": 0})
  
imports: import os
  from tensorflow.python.checkpoint import checkpoint
  from tensorflow.python.eager import context
  from tensorflow.python.eager import test
  from tensorflow.python.framework import dtypes
  from tensorflow.python.ops import gen_resource_variable_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.trackable import base
  from tensorflow.python.trackable import resource
  from tensorflow.python.training.saving import saveable_object
  from tensorflow.python.training.saving import saveable_object_util
label_desc: Use image node_id 1 for calling the SaveableCompatibilityConverterTest obj's underlying member method code with example usage: obj.test_convert_no_saveable() without return types