code: def run():
      """Run command."""
      parser = mne.commands.utils.get_optparser(
          __file__, usage="mne compare_fiff <file_a> <file_b>"
      )
      options, args = parser.parse_args()
      if len(args) != 2:
          parser.print_help()
          sys.exit(1)
      mne.viz.compare_fiff(args[0], args[1])
  
label_desc: Use image node_id 1 for calling a global function with example usage: run() without return types