ACLs autoload autoloader autoloading Autoloading backend backends behaviour CAS ClickHouse config customizable Customizable dataset de ElastiCache extensibility FPM Golang IANA keyspace keyspaces Kvrocks localhost Lua MSSQL namespace NoSQL ORM Packagist PhpRedis pipelining pluggable Predis PSR Quickstart README rebalanced rebalancing redis Redis RocksDB runtime SHA sharding SSL struct stunnel TCP TLS uri URI url variadic RedisStack RedisGears