if (args_info->@group_var_name@_group_counter @Comparison_rule@)
  {
    fprintf (stderr, "%s: %d options of group @group_name@ were given. @number_required@ is required.%s\n", @package_var_name@, args_info->@group_var_name@_group_counter, (additional_error ? additional_error : ""));
    error = 1;
  }