Available on cs
finalnew()
finalnew(value:Pointer<Char16>, length:Int)
read onlyLength:Int
finalAppendChar(c:Char16):Void
finalClear():Void
finalCopy():SecureString
finalDispose():Void
finalInsertAt(index:Int, c:Char16):Void
finalIsReadOnly():Bool
finalMakeReadOnly():Void
finalRemoveAt(index:Int):Void
finalSetAt(index:Int, c:Char16):Void
finalget_Length():Int