method operator []

Source

DataTransferItem operator [](int index) {
  // TODO(alanknight): I think that all the __getter__ generators should just
  // do property access, but that's major surgery. This one is a problem, so
  // just hard-code it for now.
  return _blink.Blink_JsNative_DomException
      .getProperty(this, index.toString());
}