                   "sessions": self._sessions,
                   "lowest_avg_loss": self._lowest_avg_loss,
                   "iterations": self._iterations,
                   "config": _CONFIG}
          self._serializer.save(self._filename, state)
          logger.debug("Saved State")
  
      def _replace_config(self, config_changeable_items) -> None:
 
</s> remove         self._config = {}
 </s> add         self._config: Dict[str, Union[str, float, int, bool, None]] = {} </s> remove     def _set_keras_mixed_precision(cls, use_mixed_precision: bool, exclude_gpus: bool) -> bool:
 </s> add     def _set_keras_mixed_precision(cls, use_mixed_precision: bool) -> bool:
                 "mixed_precision_layers": self._mixed_precision_layers,
                   "sessions": self._sessions,
                   "lowest_avg_loss": self._lowest_avg_loss,
                   "iterations": self._iterations,
                 "mixed_precision_layers": self._mixed_precision_layers,
                   "config": _CONFIG}
          self._serializer.save(self._filename, state)
          logger.debug("Saved State")
  
      def _replace_config(self, config_changeable_items) -> None:
keep keep add keep keep keep keep keep
 Enable change of precision for existing models 
plugins/train/model/_base/model.py