          self._file = filename
  
  
  class MediaLoader():
      """ Class to load filenames from folder """
      def __init__(self, folder):
          logger.debug("Initializing %s: (folder: '%s')", self.__class__.__name__, folder)
          logger.info("[%s DATA]", self.__class__.__name__.upper())
          self._count = None
          self.folder = folder
 
</s> remove         self.faces = self.get_faces(arguments)
 </s> add  </s> remove     """ Frames and faces checking tasks """
 </s> add     """ Frames and faces checking tasks.

    Parameters
    ---------
    alignments: :class:`tools.alignments.media.AlignmentsData`
        The loaded alignments corresponding to the frames to be annotated
    arguments: :class:`argparse.Namespace`
        The command line arguments that have called this job
    """ </s> remove         self.alignments = self._load_alignments()
 </s> add         self.alignments = AlignmentData(self.args.alignments_file) </s> remove         self.job = arguments.job
        self.type = None
        self.is_video = False  # Set when getting items
        self.output = arguments.output
        self.source_dir = self.get_source_dir(arguments)
        self.validate()
        self.items = self.get_items()
 </s> add         self._job = arguments.job
        self._type = None
        self._is_video = False  # Set when getting items
        self._output = arguments.output
        self._source_dir = self._get_source_dir(arguments)
        self._validate()
        self._items = self._get_items()
    """ Class to load images.

    Parameters
    ----------
    folder: str
        The folder of images or video file to load images from
    """
          self._file = filename
  
  
  class MediaLoader():
    """ Class to load images.

    Parameters
    ----------
    folder: str
        The folder of images or video file to load images from
    """
      def __init__(self, folder):
          logger.debug("Initializing %s: (folder: '%s')", self.__class__.__name__, folder)
          logger.info("[%s DATA]", self.__class__.__name__.upper())
          self._count = None
          self.folder = folder
keep keep keep keep 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/media.py