code: public static RedisClusterClient create(String uri) {
          LettuceAssert.notEmpty(uri, "URI must not be empty");
          return create(RedisClusterURIUtil.toRedisURIs(URI.create(uri)));
      }
docs: Create a new client that connects to the supplied uri with default {@link ClientResources}. You can connect to different
  Redis servers but you must supply a {@link RedisURI} on connecting.
  
  @param uri the Redis URI, must not be empty or {@literal null}.
  @return a new instance of {@link RedisClusterClient}