How to use the @remirror/core-extensions.GapCursorExtension function in @remirror/core-extensions

() =>
      ExtensionManager.create([
        { priority: 1, extension: new DocExtension({ content: 'block' }) },
        {
          priority: 1,
          extension: new CodeBlockExtension({ defaultLanguage: 'markdown', toggleType: 'codeBlock' }),
        },
        { priority: 1, extension: new TextExtension() },
        { extension: new CompositionExtension(), priority: 3 },
        { extension: new HistoryExtension(), priority: 3 },
        { extension: new GapCursorExtension(), priority: 10 },
        { extension: new BaseKeymapExtension(), priority: 10 },
      ]),
    [],