code: @Bean
      public EventManager clusteredEventManagerImpl(final EventConnectorHub eventConnectorHub) {
          return EventManagerBuilder.eventManagerBuilder()
                  .setEventConnector(eventConnectorHub)
                  .setName("CLUSTERED_EVENT_MANAGER").build();
      }
docs: Wraps factory method call so we can provide another implementation of interface if needed.
  
  @param eventConnectorHub the cluster of event connectors
  @return the event manager