docs: public static QueryTemplate append(QueryTemplate queryTemplate,
                                       Iterable<String> values,
                                       CollectionFormat collectionFormat) {
      List<String> queryValues = new ArrayList<>(queryTemplate.getValues());
      queryValues.addAll(StreamSupport.stream(values.spliterator(), false)
          .filter(Util::isNotBlank)
          .collect(Collectors.toList()));
      return create(queryTemplate.getName(), queryValues, queryTemplate.getCharset(),
          collectionFormat);
    }