@Nullable
  static Help findBestHelp(@NotNull final CommandLineArgument argument) {
    final Option option = argument.findOptionForOptionArgument();
    if (option != null) {
      return option.getHelp();
    }
    final Argument realArgument = argument.findRealArgument();
    return (realArgument != null ? realArgument.getHelp() : null);
  }
@Nullable
  static Help findBestHelp(@NotNull final CommandLineArgument argument)