code: public Map<Long, List<TotalTargetCountActionStatus>> getRolloutStatus(final List<Long> rollouts) {
          final Cache cache = cacheManager.getCache(CACHE_RO_NAME);
  
          return retrieveFromCache(rollouts, cache);
      }
docs: Retrieves cached list of {@link TotalTargetCountActionStatus} of
  {@link Rollout}s.
  
  @param rollouts
  rolloutIds to retrieve cache entries for
  @return map of cached entries