code: @SuppressWarnings("unused")
      public static Completable batchRemove(Map<String, List<String>> batchRemoves) {
          return batchRemove(CacheService.CACHE_CONFIG_BEAN, batchRemoves);
      }
docs: batch remove the elements in the cached map
  
  @param batchRemoves Map(key, fields) the sub map you want to remvoe