docs: def send_template_message(self, user_id, template_id, data, form_id, page=None, color=None, emphasis_keyword=None):
          """
          发送模板消息
          详情请参考
          https://mp.weixin.qq.com/debug/wxadoc/dev/api/notice.html
          """
          tpl_data = optionaldict(
              touser=user_id,
              template_id=template_id,
              page=page,
              form_id=form_id,
              data=data,
              color=color,
              emphasis_keyword=emphasis_keyword,
          )
          return self._post(
              'cgi-bin/message/wxopen/template/send',
              data=tpl_data
          )