docs: def resources(argv=sys.argv[1:]):
      """
      Juju CLI subcommand for dispatching resources subcommands.
      """
      eps = iter_entry_points('jujuresources.subcommands')
      ep_map = {ep.name: ep.load() for ep in eps}
  
      parser = argparse.ArgumentParser()
      if '--description' in argv:
          print('Manage and mirror charm resources')
          return 0
  
      subparsers = {}
      subparser_factory = parser.add_subparsers()
      subparsers['help'] = subparser_factory.add_parser('help', help='Display help for a subcommand')
      subparsers['help'].add_argument('command', nargs='?')
      subparsers['help'].set_defaults(subcommand='help')
      for name, subcommand in ep_map.items():
          subparsers[name] = subparser_factory.add_parser(name, help=subcommand.__doc__)
          subparsers[name].set_defaults(subcommand=subcommand)
          for args, kwargs in getattr(subcommand, '_subcommand_args', []):
              subparsers[name].add_argument(*args, **kwargs)
          for argset in getattr(subcommand, '_subcommand_argsets', {}).values():
              group = subparsers[name].add_mutually_exclusive_group(required=True)
              for args, kwargs in argset:
                  group.add_argument(*args, **kwargs)
      opts = parser.parse_args(argv)
      if opts.subcommand == 'help':
          if opts.command:
              subparsers[opts.command].print_help()
          else:
              parser.print_help()
      else:
          return _exit(opts.subcommand(opts) or 0)