issue related to ColorTransform.py

[ykkhan]

_Reloaded modules: image_utils
usage: ColorTransform.py [-h] -s SOURCE -t TARGET
ColorTransform.py: error: the following arguments are required: -s/--source, -t/--target
An exception has occurred, use %tb to see the full traceback.

SystemExit: 2_

why this error occur??kindly help