docs: def _fastfood_show(args):
      """Run on `fastfood show`."""
      template_pack = pack.TemplatePack(args.template_pack)
      if args.stencil_set:
          stencil_set = template_pack.load_stencil_set(args.stencil_set)
          print("Stencil Set %s:" % args.stencil_set)
          print('  Stencils:')
          for stencil in stencil_set.stencils:
              print("    %s" % stencil)
          print('  Options:')
          for opt, vals in stencil_set.manifest['options'].items():
              print("    %s - %s" % (opt, vals['help']))