def from_config(cls, config):
    """Instantiates an initializer from a configuration dictionary."""
    return cls(**{
        'initializers': [tf.compat.v2.initializers.deserialize(init)
                         for init in config.get('initializers', [])],
        'sizes': config.get('sizes', []),
        'validate_args': config.get('validate_args', False),
    })
Instantiates an initializer from a configuration dictionary.