How to use the @jupyterlab/chatbox.ChatboxPanel.ContentFactory function in @jupyterlab/chatbox

function activateChatbox(app: JupyterLab, rendermime: IRenderMime, palette: ICommandPalette, editorServices: IEditorServices, docManager: IDocumentManager, restorer: ILayoutRestorer): void {
  const id = 'chatbox';
  let { commands, shell } = app;
  let category = 'Chatbox';
  let command: string;

  /**
   * Create a chatbox for a given path.
   */
  let editorFactory = editorServices.factoryService.newInlineEditor.bind(
    editorServices.factoryService);
  let contentFactory = new ChatboxPanel.ContentFactory({ editorFactory });
  let panel = new ChatboxPanel({
    rendermime: rendermime.clone(),
    contentFactory
  });

  // Add the chatbox panel to the tracker.
  panel.title.label = 'Chat';
  panel.id = id;

  restorer.add(panel, 'chatbox');

  command = CommandIDs.clear;
  commands.addCommand(command, {
    label: 'Clear Chat',
    execute: args => {
      panel.chatbox.clear();