code: public Swagger2MarkupConfigBuilder withResponseOrdering(Comparator<String> responseOrdering) {
          Validate.notNull(responseOrdering, "%s must not be null", "responseOrdering");
  
          config.responseOrderBy = OrderBy.CUSTOM;
          config.responseOrdering = responseOrdering;
          return this;
      }
docs: Specifies a custom comparator function to order responses.
  
  @param responseOrdering response ordering
  @return this builder