*/
    @Override
    protected OptionalThing<String> getCookieRememberMeKey() {
        // example to use remember-me
        //return OptionalThing.of(fessConfig.getCookieRememberMeFessKey());
        return OptionalThing.empty();
    }

    /**
     * Saves the login history for the given user.
     * This operation is performed asynchronously.
     *