docs: def show(args):
      """Convert and print JSON.
  
      Argument:
  
          args: arguments object
      """
      domain = check_infile(args.infile)
      action = True
      try:
          print(json.dumps(set_json(domain, action, filename=args.infile),
                           sort_keys=True, indent=2))
      except UnicodeDecodeError as e:
          sys.stderr.write("ERROR: \"%s\" is invalid format file.\n"
                           % args.infile)
          exit(1)