      def _total_columns(self):
          """ Return the total number of images that are being displayed """
          return len(self.source)
  
      def set_centering(self, centering):
          """ The centering that the model uses is not known at initialization time.
          Set :attr:`_centering` when the model has been loaded.
  
          Parameters
          ----------
 
</s> remove     def _total_columns(self):
        """ Return the total number of images that are being displayed """
 </s> add     def _total_columns(self) -> int:
        """ int: The total number of images that are being displayed """ </s> remove     def set_display_dimensions(self, dimensions):
 </s> add     def set_display_dimensions(self, dimensions: Tuple[int, int]) -> None: </s> remove     def centering(self):
        """ str: The centering that the model was trained on (`"face"` or `"legacy"`) """
 </s> add     def centering(self) -> "CenteringType":
        """ str: The centering that the model was trained on (`"head", "face"` or `"legacy"`) """ </s> remove     def _get_model_name(self, model_dir):
 </s> add     def _get_model_name(self, model_dir: str) -> str: </s> remove     def has_predicted_mask(self):
 </s> add     def has_predicted_mask(self) -> bool:
    def set_centering(self, centering: "CenteringType") -> None:
      def _total_columns(self):
          """ Return the total number of images that are being displayed """
          return len(self.source)
  
    def set_centering(self, centering: "CenteringType") -> None:
          """ The centering that the model uses is not known at initialization time.
          Set :attr:`_centering` when the model has been loaded.
  
          Parameters
          ----------
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 
tools/preview/preview.py