third_party/web_platform_tests/WebIDL/valid/idl/getter-setter.widl

// Extracted from http://dev.w3.org/2006/webapi/WebIDL/ on 2011-05-06
interface Dictionary {
  readonly attribute unsigned long propertyCount;

  getter float (DOMString propertyName);
  setter void (DOMString propertyName, float propertyValue);
};