          return items.file_list_sorted
  
      def process(self):
          """ Process the frames check against the alignments file """
          logger.info("[CHECK %s]", self.type.upper())
          items_output = self.compile_output()
          self.output_results(items_output)
  
      def validate(self):
          """ Check that the selected type is valid for
              selected task and job """
          if self.job == "missing-frames" and self.output == "move":
 
</s> remove     def validate(self):
 </s> add     def _validate(self): </s> remove         if self.job == "missing-frames" and self.output == "move":
 </s> add         if self._job == "missing-frames" and self._output == "move": </s> remove         items = globals()[self.type.title()](self.source_dir)
        self.is_video = items.is_video
 </s> add         items = globals()[self._type.title()](self._source_dir)
        self._is_video = items.is_video </s> remove             self.output = "console"
        if self.type == "faces" and self.job not in ("multi-faces", "leftover-faces"):
 </s> add             self._output = "console"
        if self._type == "faces" and self._job != "multi-faces": </s> remove         if self.output == "move":
            self.move_file(items_output)
 </s> add         if self._output == "move":
            self._move_file(items_output)
        logger.info("[CHECK %s]", self._type.upper())
        items_output = self._compile_output()
        self._output_results(items_output)
          return items.file_list_sorted
  
      def process(self):
          """ Process the frames check against the alignments file """
        logger.info("[CHECK %s]", self._type.upper())
        items_output = self._compile_output()
        self._output_results(items_output)
        logger.info("[CHECK %s]", self._type.upper())
        items_output = self._compile_output()
        self._output_results(items_output)
        logger.info("[CHECK %s]", self._type.upper())
        items_output = self._compile_output()
        self._output_results(items_output)
  
      def validate(self):
          """ Check that the selected type is valid for
              selected task and job """
          if self.job == "missing-frames" and self.output == "move":
keep keep keep keep replace replace replace keep keep keep keep keep
 Update extracted faces to use PNG EXIF data (#1123)

Documentation
  - Update Usage.md, align.rst and image.rst
lib.image.py
  - read_image - Remove hash return, add metadata return
  - Remove read_image_hash functions
  - Add read_image_meta functios
  - Replace encode_image_with_hash with encode_image (to store metadata)
  - Add png meta reading and writing functions
  - Update Image Loaders/Savers to handle metadata rather than hashes
lib.training_data
  - Naming updates to remove references to hashes
lib.align.Alignments
  - Add versioning notes
  - Increment alignments version to 2.1
  - Deprecate hashing lookup functions
  - Replace filter_hashes with filter_faces
lib.align.detected_face
  - DetectedFace
    - Remove hash property
    - Add png header data serializing/deserializing functions
  - Mask
    - Add png header data serializing/deserializing functions
  - add update_legacy_png_header function to update png meta data
lib.cli.args - Deprecate alignments files for training
- plugins.train.trainer
  - Update alignments/mask code to read png header data
- scripts.convert
  - Aligned images folder - read data from png headers
- scripts.extract
  - Write png header information and no longer store hash of face
- tools.alignments
  - remove leftover-faces, merge and update-hashes jobs
  - Update jobs to use png meta data rather than hashes
- tools.manual
  - Update extract code to output png meta data and don't store hashes
  - Perform check on launch that tool is not pointing at a faces folder
tools.mask
  - Update to use png meta data
tools.sort
  - Update to use png meta data 
tools/alignments/jobs.py