              sys.exit(1)
  
      def compile_output(self):
          """ Compile list of frames that meet criteria """
          action = self.job.replace("-", "_")
          processor = getattr(self, "get_{}".format(action))
          logger.debug("Processor: %s", processor)
          return [item for item in processor()]  # pylint:disable=unnecessary-comprehension
  
      def get_no_faces(self):
          """ yield each frame that has no face match in alignments file """
 
</s> remove     def compile_output(self):
 </s> add     def _compile_output(self): </s> remove     def get_no_faces(self):
 </s> add     def _get_no_faces(self): </s> remove         for frame in tqdm(self.items, desc=self.output_message):
 </s> add         for frame in tqdm(self._items, desc=self.output_message): </s> remove                          "supported for 'multi-faces' and 'leftover-faces'")
            sys.exit(1)
        if self.type == "frames" and self.job == "leftover-faces":
            logger.error("You must provide a faces folder (-fc) NOT a frames folder (-fr) if "
                         "running the 'leftover-faces' job.")
 </s> add                          "supported for 'multi-faces'") </s> remove         process_type = getattr(self, "get_multi_faces_{}".format(self.type))
 </s> add         process_type = getattr(self, "_get_multi_faces_{}".format(self._type))
        action = self._job.replace("-", "_")
        processor = getattr(self, "_get_{}".format(action))
              sys.exit(1)
  
      def compile_output(self):
          """ Compile list of frames that meet criteria """
        action = self._job.replace("-", "_")
        processor = getattr(self, "_get_{}".format(action))
        action = self._job.replace("-", "_")
        processor = getattr(self, "_get_{}".format(action))
          logger.debug("Processor: %s", processor)
          return [item for item in processor()]  # pylint:disable=unnecessary-comprehension
  
      def get_no_faces(self):
          """ yield each frame that has no face match in alignments file """
keep keep keep keep 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