code: public static Single<Long> removes(CacheConfigBean cacheConfigBean, String key, Set members) {
          return SingleRxXian.call(CacheService.CACHE_SERVICE, "cacheSetRemoves", new JSONObject() {{
              put("cacheConfig", cacheConfigBean);
              put("key", key);
              put("members", members);
          }}).map(response -> {
              response.throwExceptionIfNotSuccess();
              return response.dataToLong();
          });
      }
docs: remove the given element from the cache set
  
  @param cacheConfigBean datasource configuration
  @param key             the key
  @param members         elements to be removed
  @return the removed elements count