* @return The value of found property. (NotNull: if not found, exception but basically no way)
     * @throws NumberFormatException When the property is not integer.
     */
    Integer getPageDuplicateHostMaxFetchSizeAsInteger();

    /**
     * Get the value for the key 'page.failure.url.max.fetch.size'. <br>
     * The value is, e.g. 1000 <br>