inline new (x:T, y:T)
read onlyisObserved:Bool
x:T
y:T
inline clone (vec:Vector2g<T>):Vector2g<T>
inline copy (vec:Vector2g<T>):Void
inline isEqual (vec:Vector2g<T>):Bool
removeObserver ():Void
inline set (x:T, y:T):Void
setObserver (cb:Vector2g<T> ‑> Void):Void
inline toString ():String