code: @Override
    public void sendMultimediaAuthRequest(JMultimediaAuthRequest request)
        throws InternalException, IllegalDiameterStateException, RouteException, OverloadException {
      send(Event.Type.SEND_MESSAGE, request, null);
    }
docs: /*
  (non-Javadoc)
  @see org.jdiameter.api.cxdx.ClientCxDxSession#sendMultimediaAuthRequest(org.jdiameter.api.cxdx.events.JMultimediaAuthRequest)