code: def reply_message(self, message_url, body):
          
          id = re.findall(r'(\d+)/?$', message_url)[0]
          api = 'http://www.shanbay.com/api/v1/message/%s/reply/'
          url = api % id
          data = {
              'body': body
          }
          response = self.request(url, 'post', data=data)
          return response.json()['status_code'] == 0
docs: 回复某条站内消息
  
          :param message_url: 该条消息的页面 URL
          :param body: 内容（不能超过 1024 个字符）