code: public <K, V> StatefulRedisSentinelConnection<K, V> connectSentinel(RedisCodec<K, V> codec) {
          checkForRedisURI();
          return getConnection(connectSentinelAsync(codec, redisURI, timeout));
      }
docs: Open a connection to a Redis Sentinel that treats keys and use the supplied {@link RedisCodec codec} to encode/decode
  keys and values. The client {@link RedisURI} must contain one or more sentinels.
  
  @param codec Use this codec to encode/decode keys and values, must not be {@literal null}
  @param <K> Key type
  @param <V> Value type
  @return A new stateful Redis Sentinel connection