          The current phase that the pipeline is running. Used in conjunction with :attr:`passes` and
          :attr:`final_pass` to indicate to the caller which phase is being processed
      """
      def __init__(self,
                   detector: str,
                   aligner: str,
                   masker: Union[str, List[str]],
                   configfile: Optional[str] = None,
                   multiprocess: bool = False,
                   exclude_gpus: Optional[List[int]] = None,
                   rotate_images: Optional[List[int]] = None,
                   min_size: int = 20,
 
</s> remove     def _set_flow(detector: str, aligner: str, masker: List[str]) -> List[str]:
 </s> add     def _set_flow(detector: Optional[str],
                  aligner: Optional[str],
                  masker: List[Optional[str]]) -> List[str]: </s> remove                      detector: str,
 </s> add                      detector: Optional[str], </s> remove     def _input_faces(self, *args):
 </s> add     def _process_face(self,
                      filename: str,
                      image: np.ndarray,
                      metadata: Dict[str, Any]) -> Optional["ExtractMedia"]:
        """ Process a single face when masking from face images

        filename: str
            the filename currently being processed
        image: :class:`numpy.ndarray`
            The current face being processed
        metadata: dict
            The source frame metadata from the PNG header

        Returns
        -------
        :class:`plugins.pipeline.ExtractMedia` or ``None``
            If the update type is 'output' then nothing is returned otherwise the extract media for
            the face is returned
        """
        frame_name = metadata["source"]["source_filename"]
        face_index = metadata["source"]["face_index"]
        alignment = self._alignments.get_faces_in_frame(frame_name)
        if not alignment or face_index > len(alignment) - 1:
            self._counts["skip"] += 1
            logger.warning("Skipping Face not found in alignments file: '%s'", filename)
            return None
        alignment = alignment[face_index]
        self._counts["face"] += 1

        if self._check_for_missing(frame_name, face_index, alignment):
            return None

        detected_face = self._get_detected_face(alignment)
        if self._update_type == "output":
            detected_face.image = image
            self._save(frame_name, face_index, detected_face)
            return None

        media = ExtractMedia(filename, image, detected_faces=[detected_face])
        media.add_frame_metadata(metadata["source"])
        self._counts["update"] += 1
        return media

    def _input_faces(self, *args: Union[tuple, Tuple["EventQueue"]]) -> None: </s> remove                    masker: str,
 </s> add                    masker: Optional[str], </s> remove     def __init__(self, arguments):
 </s> add     def __init__(self, arguments: "Namespace") -> None:
                 detector: Optional[str],
                 aligner: Optional[str],
                 masker: Optional[Union[str, List[str]]],
          The current phase that the pipeline is running. Used in conjunction with :attr:`passes` and
          :attr:`final_pass` to indicate to the caller which phase is being processed
      """
      def __init__(self,
                 detector: Optional[str],
                 aligner: Optional[str],
                 masker: Optional[Union[str, List[str]]],
                 detector: Optional[str],
                 aligner: Optional[str],
                 masker: Optional[Union[str, List[str]]],
                 detector: Optional[str],
                 aligner: Optional[str],
                 masker: Optional[Union[str, List[str]]],
                   configfile: Optional[str] = None,
                   multiprocess: bool = False,
                   exclude_gpus: Optional[List[int]] = None,
                   rotate_images: Optional[List[int]] = None,
                   min_size: int = 20,
keep keep keep keep replace replace replace keep keep keep keep keep
 Minor updates and fixups
  - Mask Tool - Typing + BiSeNet mask update fix
  - Alignments Tool - Auto search for alignments file 
plugins/extract/pipeline.py