@CanIgnoreReturnValue
  public long copyTo(CharSink sink) throws IOException {
    checkNotNull(sink);

    Closer closer = Closer.create();
    try {
      Reader reader = closer.register(openStream());
      Writer writer = closer.register(sink.openStream());
      return CharStreams.copy(reader, writer);
    } catch (Throwable e) {
      throw closer.rethrow(e);
    } finally {
      closer.close();
    }
  }

            RenderDataUtil.register(data, "endpoint", fessConfig.getStorageEndpoint());
            RenderDataUtil.register(data, "bucket", fessConfig.getStorageBucket());
            RenderDataUtil.register(data, "path", path);
            RenderDataUtil.register(data, "pathItems", createPathItems(path));
            RenderDataUtil.register(data, "parentId", createParentId(path));

    Closer closer = Closer.create();
    try {
      InputStream in = closer.register(openStream());
      return countBySkipping(in);
    } catch (IOException e) {
      // skip may not be supported... at any rate, try reading
    } finally {
      closer.close();
    }

    closer = Closer.create();
    try {
      InputStream in = closer.register(openStream());
      return ByteStreams.exhaust(in);

}

// Register a handler for two-way streaming with payload, input stream and output stream.
// An optional subroute can be given. Multiple entries are joined with '/'.
func (h *StreamTypeHandler[Payload, Req, Resp]) Register(m *Manager, handle func(ctx context.Context, p Payload, in <-chan Req, out chan<- Resp) *RemoteErr, subroute ...string) error {
	return h.register(m, handle, subroute...)
}

			logger.FatalIf(storageRenameDataInlineRPC.Register(gm, server.RenameDataInlineHandler, endpoint.Path), "unable to register handler")
			logger.FatalIf(storageDeleteFileRPC.Register(gm, server.DeleteFileHandler, endpoint.Path), "unable to register handler")
			logger.FatalIf(storageCheckPartsRPC.Register(gm, server.CheckPartsHandler, endpoint.Path), "unable to register handler")

        });
    }

    protected void registerRolesAndLabels(final RenderData data) {
        RenderDataUtil.register(data, "labelSettingEnabled", fessConfig.isFormAdminLabelInConfigEnabled());
        RenderDataUtil.register(data, "roleTypeItems", roleTypeService.getRoleTypeList());
        RenderDataUtil.register(data, "labelTypeItems", labelTypeService.getLabelTypeList());
    }

        });
    }

    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "fileAuthenticationItems",
                fileAuthenticationService.getFileAuthenticationList(fileAuthenticationPager)); // page navi
        RenderDataUtil.register(data, "displayCreateLink", !crawlingConfigHelper.getAllFileConfigList(false, false, false, null).isEmpty());
        // restore from pager

        public void register(final RenderData data) {
            RenderDataUtil.register(data, "queryId", queryId);
            RenderDataUtil.register(data, "documentItems", documentItems);
            RenderDataUtil.register(data, "facetResponse", facetResponse);
            RenderDataUtil.register(data, "appendHighlightParams", appendHighlightParams);
            RenderDataUtil.register(data, "execTime", execTime);

        int offset = 45;
        try (RankFusionProcessor rankFusionProcessor = new RankFusionProcessor()) {
            rankFusionProcessor.setSeacher(new TestMainSearcher(allRecordCount));
            rankFusionProcessor.register(new TestSubSearcher(10, 45, 45));
            rankFusionProcessor.init();

            if (rankFusionProcessor.search(query, new TestSearchRequestParams(0, pageSize, 0),

          e2);
    }
  }

  /**
   * Registers all subscriber methods on {@code object} to receive events.
   *
   * @param object object whose subscriber methods should be registered.
   */
  public void register(Object object) {
    subscribers.register(object);
  }

  /**
   * Unregisters all subscriber methods on a registered {@code object}.
   *