assignParserForLanguage = (options = {}) => {
  const { parserForLanguage: parserForLanguageOption, ...rest } = options;
  const parserForLanguage = freeze(
    assign(create(null), defaultParserForLanguage, parserForLanguageOption),
  );
  const languages = Object.keys(parserForLanguage);
  return { ...rest, parserForLanguage, languages };
}
Add the default parserForLanguage option.
@param {ArchiveOptions} [options]
@returns {ArchiveOptions}