* comment: Boost value for important content field with language in queries.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getQueryBoostImportantContentLang();

    /**
     * Get the value for the key 'query.boost.important_content.lang' as {@link java.math.BigDecimal}. <br>
     * The value is, e.g. -1.0 <br>