code: private void notifyHandlers(ApiZone apiZone, User sfsUser) {
          ApiUser apiUser = fetchUserAgent(sfsUser);
          for (ZoneHandlerClass handler : handlers) {
              Object userAgent = checkUserAgent(handler, apiUser);
              if (!checkHandler(handler, apiZone))
                  continue;
              notifyHandler(handler, apiZone, userAgent);
          }
      }
docs: Propagate event to handlers
  
  @param apiZone
  api zone reference
  @param sfsUser
  smartfox user object