src/third_party/web_platform_tests/resources/webidl2/test/syntax/idl/stringifier-custom.widl

// Extracted from http://dev.w3.org/2006/webapi/WebIDL/ on 2011-05-06
[Constructor]
interface Student {
  attribute unsigned long id;
  attribute DOMString? familyName;
  attribute DOMString givenName;

  stringifier DOMString ();
};