docs: def set_activate_user_form(self, card_id, **kwargs):
          """
          设置开卡字段接口
          详情请参考
          https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1451025283
          "6 激活会员卡" -> "6.2 一键激活" -> "步骤二：设置开卡字段接口"
  
          参数示例：
          {
              "card_id": "pbLatjnrwUUdZI641gKdTMJzHGfc",
              "service_statement": {
                  "name": "会员守则",
                  "url": "https://www.qq.com"
              },
              "bind_old_card": {
                  "name": "老会员绑定",
                  "url": "https://www.qq.com"
              },
              "required_form": {
                  "can_modify"：false,
                  "rich_field_list": [
                      {
                          "type": "FORM_FIELD_RADIO",
                          "name": "兴趣",
                          "values": [
                              "钢琴",
                              "舞蹈",
                              "足球"
                          ]
                      },
                      {
                          "type": "FORM_FIELD_SELECT",
                          "name": "喜好",
                          "values": [
                              "郭敬明",
                              "韩寒",
                              "南派三叔"
                          ]
                      },
                      {
                          "type": "FORM_FIELD_CHECK_BOX",
                          "name": "职业",
                          "values": [
                              "赛车手",
                              "旅行家"
                          ]
                      }
                  ],
                  "common_field_id_list": [
                      "USER_FORM_INFO_FLAG_MOBILE"
                  ]
              },
              "optional_form": {
                  "can_modify"：false,
                  "common_field_id_list": [
                      "USER_FORM_INFO_FLAG_LOCATION",
                      "USER_FORM_INFO_FLAG_BIRTHDAY"
                  ],
                  "custom_field_list": [
                      "喜欢的电影"
                  ]
              }
          }
          common_field_id_list 值见常量 `wechatpy.constants.UserFormInfoFlag`
  
          :param card_id: 卡券ID
          :param kwargs: 其他非必填参数，见微信文档
          """
          kwargs['card_id'] = card_id
          return self._post(
              'card/membercard/activateuserform/set',
              data=kwargs
          )