public static T GetAction <T>
     (this PlayMakerFSM fsm, string stateName, int index) where T : FsmStateAction =>
 FsmUtil.GetAction <T>(fsm, stateName, index);
 public static FsmStateAction GetAction(this PlayMakerFSM fsm, string stateName, int index) => FsmUtil.GetAction(fsm, stateName, index);