docs: def _fastfood_list(args):
      """Run on `fastfood list`."""
      template_pack = pack.TemplatePack(args.template_pack)
      if args.stencil_set:
          stencil_set = template_pack.load_stencil_set(args.stencil_set)
          print("Available Stencils for %s:" % args.stencil_set)
          for stencil in stencil_set.stencils:
              print("  %s" % stencil)
      else:
          print('Available Stencil Sets:')
          for name, vals in template_pack.stencil_sets.items():
              print("  %12s - %12s" % (name, vals['help']))