public static function increaseRevalidationCounter(string $variableName = '_MF_SESSION_REVALIDATION_COUNTER_'): void
    {
        static::init();
        $variableName = (string)$variableName;
        $vHandler = Variables::getInstance();
        $vHandler->session->set($variableName, $vHandler->session->get($variableName, Variables::TYPE_INT) + 1);
    }