          -------
          bool
              ``True`` if mixed precision has been enabled otherwise ``False``
          """
          logger.debug("use_mixed_precision: %s, exclude_gpus: %s",
                       use_mixed_precision, exclude_gpus)
          if not use_mixed_precision:
              logger.debug("Not enabling 'mixed_precision' (backend: %s, use_mixed_precision: %s)",
                           get_backend(), use_mixed_precision)
              return False
          logger.info("Enabling Mixed Precision Training.")
  
 
</s> remove         logger.info("Enabling Mixed Precision Training.")
 </s> add         if not use_mixed_precision:
            policy = mixedprecision.Policy('float32')
            mixedprecision.set_global_policy(policy)
            logger.debug("Disabling mixed precision. (Compute dtype: %s, variable_dtype: %s)",
                         policy.compute_dtype, policy.variable_dtype)
            return False </s> remove         exclude_gpus: bool
            ``True`` If connected GPUs are being excluded otherwise ``False``.
 </s> add  </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.") </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:
        logger.debug("use_mixed_precision: %s", use_mixed_precision)
        if not use_mixed_precision and get_backend() == "amd":
          -------
          bool
              ``True`` if mixed precision has been enabled otherwise ``False``
          """
        logger.debug("use_mixed_precision: %s", use_mixed_precision)
        if not use_mixed_precision and get_backend() == "amd":
        logger.debug("use_mixed_precision: %s", use_mixed_precision)
        if not use_mixed_precision and get_backend() == "amd":
        logger.debug("use_mixed_precision: %s", use_mixed_precision)
        if not use_mixed_precision and get_backend() == "amd":
              logger.debug("Not enabling 'mixed_precision' (backend: %s, use_mixed_precision: %s)",
                           get_backend(), use_mixed_precision)
              return False
          logger.info("Enabling Mixed Precision Training.")
  
keep keep keep keep replace replace replace keep keep keep keep keep
 Enable change of precision for existing models 
plugins/train/model/_base/settings.py