Available on neko
@:has_untypedstaticcharCodeAt(s:String, index:Int):Int
@:has_untypedstaticcompare(a:String, b:String):Int
@:has_untypedstaticdecode(s:String):String
@:has_untypedstaticencode(s:String):String
@:has_untypedstaticiter(s:String, chars:Int ‑> Void):Void
@:has_untypedstaticlength(s:String):Int
@:has_untypedstaticsub(s:String, pos:Int, len:Int):String
@:has_untypedstaticvalidate(s:String):Bool
new(?size:Int)
addChar(c:Int):Void
toString():String