code: def test_predicate(self):
      class Predicate(base.Trackable):
          def __init__(self, register_this):
              self.register_this = register_this
  
      registration.register_serializable(
          name="RegisterThisOnlyTrue",
          predicate=lambda x: isinstance(x, Predicate)
          and x.register_this,
      )(Predicate)
  
      a = Predicate(True)
      b = Predicate(False)
      self.assertEqual(
          registration.get_registered_class_name(a),
          "Custom.RegisterThisOnlyTrue",
      )
      self.assertIsNone(registration.get_registered_class_name(b))
  
      registration.register_serializable(
          name="RegisterAllPredicate",
          predicate=lambda x: isinstance(x, Predicate),
      )(Predicate)
  
      self.assertEqual(
          registration.get_registered_class_name(a),
          "Custom.RegisterAllPredicate",
      )
      self.assertEqual(
          registration.get_registered_class_name(b),
          "Custom.RegisterAllPredicate",
      )
  
imports: from absl.testing import parameterized
  from tensorflow.python.eager import test
  from tensorflow.python.saved_model import registration
  from tensorflow.python.trackable import base
label_desc: Use image node_id 7 for calling the SerializableRegistrationTest obj's underlying member method code with example usage: obj.test_predicate() without return types