[Constructor] interface Student { attribute unsigned long id; attribute DOMString? familyName; attribute DOMString givenName; stringifier DOMString (); }; [Constructor] interface Student { attribute unsigned long id; attribute DOMString? familyName; attribute DOMString givenName; stringifier DOMString (); }; Constructor attribute unsigned long id; attribute DOMString? familyName; attribute DOMString givenName; stringifier DOMString ();