Which function should be finished in exp, in other words how much should I do and what should I finished in my own exp

[lovedoubledan]

I am using your repos for medical CT 3d detection, but I can't figure out which function is really necessary for exp and called in your other file , while which is depending. Or ,what should I provide in my own exp, about the function name, its para, its return format. I do read your example exp but still can't make out.