      "face-cnn": _("faces by their landmarks."),
      "face-cnn-dissim": _("Like 'face-cnn' but sorts by dissimilarity."),
      "yaw": _("faces by Yaw (rotation left to right)."),
      "pitch": _("faces by Pitch (rotation up and down)."),
      "hist": _("faces by their color histogram."),
      "hist-dissim": _("Like 'hist' but sorts by dissimilarity."),
      "color-gray": _("images by the average intensity of the converted grayscale color channel."),
      "color-black": _("images by their number of black pixels. Useful when faces are near borders "
 
</s> remove #: tools/sort/cli.py:46
 </s> add #: tools/sort/cli.py:48 </s> remove #: tools/sort/cli.py:48
 </s> add #: tools/sort/cli.py:50 </s> remove #: tools/sort/cli.py:45
 </s> add #: tools/sort/cli.py:47 </s> remove #: tools/sort/cli.py:44
 </s> add #: tools/sort/cli.py:46
    "roll": _("faces by Roll (rotation). Aligned faces should have a roll value close to zero. "
              "The further the Roll value from zero the higher liklihood the face is misaligned."),
      "face-cnn": _("faces by their landmarks."),
      "face-cnn-dissim": _("Like 'face-cnn' but sorts by dissimilarity."),
      "yaw": _("faces by Yaw (rotation left to right)."),
      "pitch": _("faces by Pitch (rotation up and down)."),
    "roll": _("faces by Roll (rotation). Aligned faces should have a roll value close to zero. "
              "The further the Roll value from zero the higher liklihood the face is misaligned."),
      "hist": _("faces by their color histogram."),
      "hist-dissim": _("Like 'hist' but sorts by dissimilarity."),
      "color-gray": _("images by the average intensity of the converted grayscale color channel."),
      "color-black": _("images by their number of black pixels. Useful when faces are near borders "
keep keep keep add keep keep keep keep
 sort tool: Add sort by roll 
tools/sort/cli.py