code: public static StatisticsPageResult statisticsPage(String accessToken,
                                                        StatisticsPage statisticsPage) {
          return statisticsPage(accessToken,
                  JsonUtil.toJSONString(statisticsPage));
      }
docs: 以页面为维度的数据统计接口
  
  @param accessToken    accessToken
  @param statisticsPage statisticsPage
  @return result