How to add a new target in xcode via Unity code?

Hi, recently I'm trying to do add a new target ----Sticker Pack Extension by Unity code via PostProcessBuild, and I find a function called AddTarget, but according to the unity document I cannot find out what values I can use as the parameters in this function, and what kind of settings I need to set, May I ask for some help or where can I find some references about this function? Thanks.