* The value is, e.g. fvh <br>
     * comment: Type of query highlighting.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getQueryHighlightType();

    /**
     * Get the value for the key 'query.highlight.tag.pre'. <br>
     * The value is, e.g. &lt;strong&gt; <br>
     * comment: Tag to use before highlighted text.