code: public static SyncMapItemUpdater updater(final String pathServiceSid, 
                                               final String pathMapSid, 
                                               final String pathKey) {
          return new SyncMapItemUpdater(pathServiceSid, pathMapSid, pathKey);
      }
docs: Create a SyncMapItemUpdater to execute update.
  
  @param pathServiceSid The service_sid
  @param pathMapSid The map_sid
  @param pathKey The key
  @return SyncMapItemUpdater capable of executing the update