code: @SuppressWarnings("unchecked")
      @Override
      public List<String> multiGet(String... keys) {
          Pipeline p = redisClient.pipelined();
          for (String key : keys) {
              p.get(key);
          }
          List<?> result = p.syncAndReturnAll();
          return (List<String>) result;
      }
docs: {@inheritDoc}