I was looking for a way to change scientist drops and i stumbled upon this but there appears to be no documentation of it so im a bit confused

object OnCorpsePopulate(HTNPlayer entity, NPCPlayerCorpse corpse) {
  Puts("Test");
  return null;
}

Well, i found this but it doesnt appear to work despite the fact that i have only seen it be added last year on april 9th and not removed in any way i can tell