code: public StatefulRedisSentinelConnection<String, String> connectSentinel(RedisURI redisURI) {
  
          assertNotNull(redisURI);
  
          return getConnection(connectSentinelAsync(newStringStringCodec(), redisURI, redisURI.getTimeout()));
      }
docs: Open a connection to a Redis Sentinel using the supplied {@link RedisURI} that treats keys and values as UTF-8 strings.
  The client {@link RedisURI} must contain one or more sentinels.
  
  @param redisURI the Redis server to connect to, must not be {@literal null}
  @return A new connection