docs: def enable_notebook(verbose=0):
      """Enable IPython notebook widgets to be displayed.
  
      This function should be called before using the chemview widgets.
      """
      libs = ['objexporter.js',
              'ArcballControls.js', 'filesaver.js',
              'base64-arraybuffer.js', 'context.js',
              'chemview.js', 'three.min.js', 'jquery-ui.min.js',
              'context.standalone.css', 'chemview_widget.js',
              'trajectory_controls_widget.js', "layout_widget.js",
              "components/jquery-fullscreen/jquery.fullscreen.js",
              'scales.js']
      fns = [resource_filename('chemview', os.path.join('static', f)) for f in libs]
  
      [install_nbextension(fn, verbose=verbose, overwrite=True, user=True) for fn in fns]