code: public long removeAll(final String... members) {
          return doWithJedis(new JedisCallable<Long>() {
              @Override
              public Long call(Jedis jedis) {
                  return jedis.srem(getKey(), members);
              }
          });
      }
docs: Removes from this set all of its elements that are contained in the specified members array
  @param members the members to remove
  @return the number of members actually removed