duncan3dc\Sonos\Network::getCacheKey PHP Метод

    protected function getCacheKey()
    {
        $cacheKey = "devices";
        $cacheKey .= "_" . gettype($this->networkInterface);
        $cacheKey .= "_" . $this->networkInterface;
        $cacheKey .= "_" . $this->multicastAddress;
        return $cacheKey;
    }