docs: public DiscoverInfo discoverInfo() throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
          DiscoverInfo info = new DiscoverInfo();
          info.setTo(pubSubManager.getServiceJid());
          info.setNode(getId());
          return pubSubManager.getConnection().createStanzaCollectorAndSend(info).nextResultOrThrow();
      }