          """ python function: Selected writer's pre-encode function, if it has one,
          otherwise ``None`` """
          dummy = np.zeros((20, 20, 3), dtype="uint8")
          test = self._writer.pre_encode(dummy)
          retval = None if test is None else self._writer.pre_encode
          logger.debug("Writer pre_encode function: %s", retval)
          return retval
  
      @property
      def save_thread(self):
 
</s> remove     def pre_encode(self):
 </s> add     def pre_encode(self) -> Optional[Callable[[np.ndarray], List[bytes]]]: </s> remove     def save_thread(self):
 </s> add     def save_thread(self) -> MultiThread: </s> remove         retval = "copy"
 </s> add         retval: Optional[str] = "copy" </s> remove     def _queue_size(self):
 </s> add     def _queue_size(self) -> int:
        retval: Optional[Callable[[np.ndarray],
                                  List[bytes]]] = None if test is None else self._writer.pre_encode
          """ python function: Selected writer's pre-encode function, if it has one,
          otherwise ``None`` """
          dummy = np.zeros((20, 20, 3), dtype="uint8")
          test = self._writer.pre_encode(dummy)
        retval: Optional[Callable[[np.ndarray],
                                  List[bytes]]] = None if test is None else self._writer.pre_encode
          logger.debug("Writer pre_encode function: %s", retval)
          return retval
  
      @property
      def save_thread(self):
keep keep keep keep replace keep keep keep keep keep
 Bugfix: convert - Gif Writer
  - Fix non-launch error on Gif Writer
  - convert plugins - linting
  - convert/fs_media/preview/queue_manager - typing
  - Change convert items from dict to Dataclass 
scripts/convert.py