code: public static DeviceGroupAddDeviceResult deviceGroupAddDevice(
              String accessToken, DeviceGroupAddDevice deviceGroupAddDevice) {
          return deviceGroupAddDevice(accessToken,
                  JsonUtil.toJSONString(deviceGroupAddDevice));
      }
docs: 添加设备到分组
  
  @param accessToken          accessToken
  @param deviceGroupAddDevice deviceGroupAddDevice
  @return result