* @param string $server A hostname/port combination or the absolute path of a UNIX socket.
* If a hostname is specified but no port, port 6379 will be used.
* @param LoggerInterface|null $logger PSR-3 logger intance. [optional]
* @param string $server A hostname/port combination or the absolute path of a UNIX socket.
* If a hostname is specified but no port, port 6379 will be used.
* @param LoggerInterface|null $logger PSR-3 logger intance. [optional]