a 0Sic@sdZddlmZddlmZddlmZddlmZddlm Z ddlm Z ddlm Zdd lmZdd lmZdd lmZdd lmZdd lmZddlmZddlmZddlmZddlmZedddZeddddZ edddZ!dS)zcBuilt-in optimizer classes. For more examples see the base class `tf.keras.optimizers.Optimizer`. )backend) Optimizer) TFOptimizer)adadelta)adagrad)adam)adamax)ftrl)gradient_descent)nadam) optimizer_v2)rmsprop)deserialize_keras_objectserialize_keras_object optimizer) keras_exportzkeras.optimizers.serializecCst|S)a@Serialize the optimizer configuration to JSON compatible python dict. The configuration can be used for persistence and reconstruct the `Optimizer` instance again. >>> tf.keras.optimizers.serialize(tf.keras.optimizers.SGD()) {'class_name': 'SGD', 'config': {'name': 'SGD', 'learning_rate': 0.01, 'decay': 0.0, 'momentum': 0.0, 'nesterov': False}} Args: optimizer: An `Optimizer` instance to serialize. Returns: Python dict which contains the configuration of the input optimizer. rrr^/var/www/html/django/DPS/env/lib/python3.9/site-packages/tensorflow/python/keras/optimizers.py serialize'srzkeras.optimizers.deserializeNc Csjddlm}tjtjtjtj t j t j tjtj|j|jd }|d|vrZ|d|d<t|||ddS)a-Inverse of the `serialize` function. Args: config: Optimizer configuration dictionary. custom_objects: Optional dictionary mapping names (strings) to custom objects (classes and functions) to be considered during deserialization. Returns: A Keras Optimizer instance. r)loss_scale_optimizer) rrrrr r sgdr ZlossscaleoptimizerZlossscaleoptimizerv1 class_namer)module_objectscustom_objectsprintable_module_name)'tensorflow.python.keras.mixed_precisionr adadelta_v2Adadelta adagrad_v2Adagradadam_v2Adam adamax_v2Adamaxnadam_v2ZNadam rmsprop_v2RMSpropgradient_descent_v2SGDr ZFtrlLossScaleOptimizerlowerr)configrrZ all_classesrrr deserialize<s( r.zkeras.optimizers.getcCszt|ttjfr|St|tjr6t|}t||St|trHt |St|t rht |id}t |St d |dS)aRetrieves a Keras Optimizer instance. Args: identifier: Optimizer identifier, one of - String: name of an optimizer - Dictionary: configuration dictionary. - Keras Optimizer instance (it will be returned unchanged). - TensorFlow Optimizer instance (it will be wrapped as a Keras Optimizer). Returns: A Keras Optimizer instance. Raises: ValueError: If `identifier` cannot be interpreted. )rr-z,Could not interpret optimizer identifier: {}N) isinstancerr OptimizerV2tf_optimizer_modulerrtrack_tf_optimizerdictr.str ValueErrorformat) identifieroptr-rrrgetes    r9)N)"__doc__tensorflow.python.kerasrZ$tensorflow.python.keras.optimizer_v1rr$tensorflow.python.keras.optimizer_v2rrrr rr"rr$r r r)r r&r r r'+tensorflow.python.keras.utils.generic_utilsrrtensorflow.python.trainingrr1 tensorflow.python.util.tf_exportrrr.r9rrrrs,                  (