docs: def set_auth_field(self, user_field, biz_field):
          """
          设置授权页字段信息
          详情请参考
          https://mp.weixin.qq.com/wiki?id=mp1497082828_r1cI2
  
          :param user_field: 授权页个人发票字段
          :type user_field: dict
          :param biz_field: 授权页单位发票字段
          :type biz_field: dict
          """
          return self._post(
              'setbizattr',
              params={
                  'action': 'set_auth_field',
              },
              data={
                  'auth_field': {
                      'user_field': user_field,
                      'biz_field': biz_field,
                  },
              },
          )