def test_serialize_custom_class_with_default_name(self):
@generic_utils.register_keras_serializable()
class TestClass(object):
def __init__(self, value):
self._value = value
def get_config(self):
return {'value': self._value}
serialized_name = 'Custom>TestClass'
inst = TestClass(value=10)
class_name = generic_utils._GLOBAL_CUSTOM_NAMES[TestClass]
self.assertEqual(serialized_name, class_name)
config = generic_utils.serialize_keras_object(inst)
self.assertEqual(class_name, config['class_name'])
new_inst = generic_utils.deserialize_keras_object(config)
self.assertIsNot(inst, new_inst)
self.assertIsInstance(new_inst, TestClass)
self.assertEqual(10, new_inst._value)
# Make sure registering a new class with same name will fail.
with self.assertRaisesRegex(ValueError,
'.*has already been registered.*'):
@generic_utils.register_keras_serializable() # pylint: disable=function-redefined
class TestClass(object):
def __init__(self, value):
self._value = value
def get_config(self):
return {'value': self._value}
def serialize(activation):
"""Returns name attribute (`__name__`) of function.
Arguments:
activation : Function
Returns:
String denoting the name attribute of the input function
For example:
>>> tf.keras.activations.serialize(tf.keras.activations.tanh)
'tanh'
>>> tf.keras.activations.serialize(tf.keras.activations.sigmoid)
'sigmoid'
>>> tf.keras.activations.serialize('abcd')
Traceback (most recent call last):
...
ValueError: ('Cannot serialize', 'abcd')
Raises:
ValueError: The input function is not a valid one.
"""
if (hasattr(activation, '__name__')
and activation.__name__ in _TF_ACTIVATIONS_V2):
return _TF_ACTIVATIONS_V2[activation.__name__]
return serialize_keras_object(activation)
def test_serialize_custom_class_with_custom_name(self):
@generic_utils.register_keras_serializable('TestPackage', 'CustomName')
class OtherTestClass(object):
def __init__(self, val):
self._val = val
def get_config(self):
return {'val': self._val}
serialized_name = 'TestPackage>CustomName'
inst = OtherTestClass(val=5)
class_name = generic_utils._GLOBAL_CUSTOM_NAMES[OtherTestClass]
self.assertEqual(serialized_name, class_name)
fn_class_name = generic_utils.get_registered_name(OtherTestClass)
self.assertEqual(fn_class_name, class_name)
cls = generic_utils.get_registered_object(fn_class_name)
self.assertEqual(OtherTestClass, cls)
config = generic_utils.serialize_keras_object(inst)
self.assertEqual(class_name, config['class_name'])
new_inst = generic_utils.deserialize_keras_object(config)
self.assertIsNot(inst, new_inst)
self.assertIsInstance(new_inst, OtherTestClass)
self.assertEqual(5, new_inst._val)
def test_serialize_custom_function(self):
@generic_utils.register_keras_serializable()
def my_fn():
return 42
serialized_name = 'Custom>my_fn'
class_name = generic_utils._GLOBAL_CUSTOM_NAMES[my_fn]
self.assertEqual(serialized_name, class_name)
fn_class_name = generic_utils.get_registered_name(my_fn)
self.assertEqual(fn_class_name, class_name)
config = generic_utils.serialize_keras_object(my_fn)
self.assertEqual(class_name, config)
fn = generic_utils.deserialize_keras_object(config)
self.assertEqual(42, fn())
fn_2 = generic_utils.get_registered_object(fn_class_name)
self.assertEqual(42, fn_2())
def serialize(regularizer):
return serialize_keras_object(regularizer)
def test_serialize_none(self):
serialized = generic_utils.serialize_keras_object(None)
self.assertEqual(serialized, None)
deserialized = generic_utils.deserialize_keras_object(serialized)
self.assertEqual(deserialized, None)
def serialize(initializer):
return serialize_keras_object(initializer)
def serialize(constraint):
return serialize_keras_object(constraint)