o ·2úhH ã@s*ddlmZeddgƒGdd„dƒƒZdS)é)Ú keras_exportzkeras.Initializerzkeras.initializers.Initializerc@s6eZdZdZd dd„Zdd„Zedd„ƒZd d „ZdS) Ú Initializera<Initializer base class: all Keras initializers inherit from this class. Initializers should implement a `__call__()` method with the following signature: ```python def __call__(self, shape, dtype=None, **kwargs): # returns a tensor of shape `shape` and dtype `dtype` # containing values drawn from a distribution of your choice. ``` Optionally, you can also implement the method `get_config()` and the class method `from_config` in order to support serialization, just like with any Keras object. Here's a simple example: a random normal initializer. ```python class ExampleRandomNormal(Initializer): def __init__(self, mean, stddev): self.mean = mean self.stddev = stddev def __call__(self, shape, dtype=None, **kwargs): return keras.random.normal( shape, mean=self.mean, stddev=self.stddev, dtype=dtype ) def get_config(self): # To support serialization return {"mean": self.mean, "stddev": self.stddev} ``` Note that we don't have to implement `from_config()` in the example above since the constructor arguments of the class the keys in the config returned by `get_config()` are the same. In this case, the default `from_config()` works fine. NcCstdƒ‚)zµReturns a tensor object initialized as specified by the initializer. Args: shape: Shape of the tensor. dtype: Optional dtype of the tensor. z>Initializer subclasses must implement the `__call__()` method.)ÚNotImplementedError)ÚselfÚshapeÚdtype©rú]/var/www/html/chatgem/venv/lib/python3.10/site-packages/keras/src/initializers/initializer.pyÚ__call__,sÿzInitializer.__call__cCsiS)zŒReturns the initializer's configuration as a JSON-serializable dict. Returns: A JSON-serializable Python dict. r©rrrr Ú get_config7szInitializer.get_configcCs|di|¤ŽS)a’Instantiates an initializer from a configuration dictionary. Example: ```python initializer = RandomUniform(-1, 1) config = initializer.get_config() initializer = RandomUniform.from_config(config) ``` Args: config: A Python dictionary, the output of `get_config()`. Returns: An `Initializer` instance. Nrr)ÚclsÚconfigrrr Ú from_config?szInitializer.from_configcCs|j | ¡¡S©N)Ú __class__rr r rrr ÚcloneSszInitializer.cloner) Ú__name__Ú __module__Ú __qualname__Ú__doc__r r Ú classmethodrrrrrr rs &   rN)Úkeras.src.api_exportrrrrrr Ús