      import tensorflow.keras.mixed_precision as mixedprecision  # noqa pylint:disable=import-error,no-name-in-module
  
  if TYPE_CHECKING:
      from argparse import Namespace
  
  logger = logging.getLogger(__name__)  # pylint: disable=invalid-name
  
  
 
</s> remove _CONFIG = None
 </s> add _CONFIG: Dict[str, Union[str, float, int, bool, None]] = {} </s> remove         self._use_mixed_precision = self._set_keras_mixed_precision(use_mixed_precision,
                                                                    bool(arguments.exclude_gpus))
 </s> add         self._use_mixed_precision = self._set_keras_mixed_precision(use_mixed_precision)
        if self._use_mixed_precision:
            logger.info("Enabling Mixed Precision Training.")
    from .model import State
      import tensorflow.keras.mixed_precision as mixedprecision  # noqa pylint:disable=import-error,no-name-in-module
  
  if TYPE_CHECKING:
      from argparse import Namespace
    from .model import State
  
  logger = logging.getLogger(__name__)  # pylint: disable=invalid-name
  
  
keep keep keep add keep keep keep keep
 Enable change of precision for existing models 
plugins/train/model/_base/settings.py