static public InputAtom_Stick GetAsStick(this InputAtom_IntStick item)
 {
     return(item.IfNotNull(i => new InputAtom_Stick_IntStick(i)));
 }
 static public InputAtom_IntAxis GetAsIntAxis(this InputAtom_IntStick item, bool is_horizontal)
 {
     return(item.IfNotNull(i => new InputAtom_IntAxis_IntStickHalf(i, is_horizontal)));
 }