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

    /**
     * Get the value for the key 'query.boost.content.lang' as {@link java.math.BigDecimal}. <br>
     * The value is, e.g. 0.1 <br>