code: public ConfigBuilder withSentinels(final Set<String> sentinels) {
          if (sentinels == null || sentinels.size() < 1) {
              throw new IllegalArgumentException("sentinels is null or empty: " + sentinels);
          }
          this.sentinels = sentinels;
          return this;
      }
docs: Configs created by this ConfigBuilder will use the given Redis sentinels.
  
  @param sentinels the Redis set of sentinels
  @return this ConfigBuilder