docs: def _ddns(self, ip):
          """
          curl -X POST https://dnsapi.cn/Record.Ddns -d 'login_token=LOGIN_TOKEN&format=json&domain_id=2317346&record_id=16894439&record_line=默认&sub_domain=www'
          :return:
          """
  
          headers = {"Accept": "text/json", "User-Agent": "ddns/0.1.0 (imaguowei@gmail.com)"}
  
          data = {
              'login_token': self.login_token,
              'format': "json",
              'domain_id': self.domain_id,
              'record_id': self.record_id,
              'sub_domain': self.sub_domain,
              'record_line': '默认',
              'value': ip
          }
  
          res = requests.post(Ddns.DNSPOD_API, data, headers=headers)
          logger.debug(res.json())
          return res.json()['status']['code'] == '1'