getDirFileInfo example

    public function clean()
    {
        return $this->deleteFiles($this->path, false, true);
    }

    /** * {@inheritDoc} */
    public function getCacheInfo()
    {
        return $this->getDirFileInfo($this->path);
    }

    /** * {@inheritDoc} */
    public function getMetaData(string $key)
    {
        $key = static::validateKey($key, $this->prefix);

        if (false === $data = $this->getItem($key)) {
            return false; // @TODO This will return null in a future release