code: public boolean disable(Jid pushJid, String node)
              throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
          DisablePushNotificationsIQ disablePushNotificationsIQ = new DisablePushNotificationsIQ(pushJid, node);
          return changePushNotificationsStatus(disablePushNotificationsIQ);
      }
docs: Disable push notifications of an specific node.
  
  @param pushJid
  @param node
  @return true if it was successfully disabled, false if not
  @throws NoResponseException
  @throws XMPPErrorException
  @throws NotConnectedException
  @throws InterruptedException