src/third_party/web_platform_tests/resources/webidl2/test/widlproc/test/valid/xml/overridebuiltins.widlprocxml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE Definitions SYSTEM "widlprocxml.dtd">
<Definitions>
  <webidl>[OverrideBuiltins]
interface StringMap2 {
  readonly attribute unsigned long length;
  getter DOMString lookup(DOMString key);
};</webidl>
  <Interface name="StringMap2" id="::StringMap2">
    <webidl>[OverrideBuiltins]
interface StringMap2 {
  readonly attribute unsigned long length;
  getter DOMString lookup(DOMString key);
};</webidl>
    <ExtendedAttributeList>
      <ExtendedAttribute name="OverrideBuiltins">
        <webidl>OverrideBuiltins</webidl>
      </ExtendedAttribute>
    </ExtendedAttributeList>
    <Attribute readonly="readonly" name="length" id="::StringMap2::length">
      <webidl>  readonly attribute unsigned long length;</webidl>
      <Type type="unsigned long"/>
    </Attribute>
    <Operation getter="getter" name="lookup" id="::StringMap2::lookup">
      <webidl>  getter DOMString lookup(DOMString key);</webidl>
      <Type type="DOMString"/>
      <ArgumentList>
        <Argument name="key">
          <Type type="DOMString"/>
        </Argument>
      </ArgumentList>
    </Operation>
  </Interface>
</Definitions>