docs: public static synchronized void initialize(int myHostId, CatalogContext catalogContext, HostMessenger messenger) throws BundleException, IOException {
          ImporterStatsCollector statsCollector = new ImporterStatsCollector(myHostId);
          ImportManager em = new ImportManager(myHostId, messenger, statsCollector);
          VoltDB.instance().getStatsAgent().registerStatsSource(
                  StatsSelector.IMPORTER,
                  myHostId,
                  statsCollector);
  
          m_self = em;
          em.create(catalogContext);
      }