public function get($key)
    {
        $sh = new BlockShmop($this->getIdByKey($key), 10);
        if ($time = $sh->read()) {
            return (new \DateTime())->setTimestamp($time);
        }

        return;
    }
public function get($key)
    {
        $sh = new BlockShmop($this->getIdByKey($key), 10);
        if ($time = $sh->read()) {
            return (new \DateTime())->setTimestamp($time);
        }

        return;
    }
@param string $key

@return \DateTime|null