code: @Override
    public void doPushNotificationRequestEvent(ClientShSession session, PushNotificationRequest request)
        throws InternalException, IllegalDiameterStateException, RouteException, OverloadException {
      // TODO Auto-generated method stub
    }
docs: /*
  (non-Javadoc)
  
  @see org.jdiameter.api.sh.ClientShSessionListener#doPushNotificationRequestEvent(
  org.jdiameter.api.sh.ClientShSession, org.jdiameter.api.sh.events.PushNotificationRequest)