As far as I know, that’s all there is. I can’t confirm exactly since I just go off what I’ve looked at and searched for, but I had went over it several times by now. If you want, you can learn a bit more about the function itself here, like what it really does and what (very minor) practical uses it has: The “ALT_PID_Setter” function
(I point out later in the thread that Dayan is the second character who uses the flag)