/**
  * {@inheritdoc}
  */
 protected function doGetStats()
 {
     $stats = $this->cache->connection()->info();
     return [Cache::STATS_HITS => isset($stats['keyspace_hits']) ? $stats['keyspace_hits'] : $stats['Stats']['keyspace_hits'], Cache::STATS_MISSES => isset($stats['keyspace_misses']) ? $stats['keyspace_misses'] : $stats['Stats']['keyspace_misses'], Cache::STATS_UPTIME => isset($stats['uptime_in_seconds']) ? $stats['uptime_in_seconds'] : $stats['Server']['uptime_in_seconds'], Cache::STATS_MEMORY_USAGE => isset($stats['used_memory']) ? $stats['used_memory'] : $stats['Memory']['used_memory']];
 }