/**
     * Get the value for the key 'cookie.search.parameter.required_keys'. <br>
     * The value is, e.g. q <br>
     * comment: Comma-separated list of required parameter keys that must be present to store in cookies.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getCookieSearchParameterRequiredKeys();

    /**