keras/src/quantizers/quantizers.py/Quantizer/from_config
class Quantizer:    def from_config(cls, config):
        """Creates a quantizer from its config.

        This method is the reverse of `get_config`,
        capable of instantiating the same quantizer from the config
        dictionary.

        This method is used by Keras `model_to_estimator`, saving and
        loading models to HDF5 formats, Keras model cloning, some visualization
        utilities, and exporting models to and from JSON.

        Args:
            config: A Python dictionary, typically the output of get_config.

        Returns:
            A quantizer instance.
        """
        return cls(**config)