code: public static DeviceGroupGetListResult deviceGroupGetList(
              String accessToken, DeviceGroupGetList deviceGroupGetList) {
          return deviceGroupGetList(accessToken,
                  JsonUtil.toJSONString(deviceGroupGetList));
      }
docs: 查询分组列表
  
  @param accessToken        accessToken
  @param deviceGroupGetList deviceGroupGetList
  @return result