Multiple Faces - Question

Hi, I have a big favor to ask
I'm using 'Ghost' in 'Google Colab Demo' , and I very want use the option "multiple faces". I just found a guide:
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Swap to many person in the video. You must set multiple faces for source and the corresponding multiple faces from the target video.

python inference.py --source_paths {PATH_TO_IMAGE PATH_TO_IMAGE ...} --target_faces_paths {PATH_TO_IMAGE PATH_TO_IMAGE ...} --target_video {PATH_TO_VIDEO}
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Can anyone help me and tell me how to enable this option in google colab ? and how to save in 'result_multi.mp4' ? there is a example video in 'examples'

I'm a noob and I have no idea how to write it myself, best regards