code: def _warning_handler(self, code: int):
          
          if code == 300:
              warnings.warn(
                  "ExpireWarning",
                  RuntimeWarning,
                  stacklevel=3
              )
          elif code == 301:
              warnings.warn(
                  "ExpireStreamWarning",
                  RuntimeWarning,
                  stacklevel=3
              )
          else:
              if self.debug:
                  print("unknow code {}".format(code))
              return False
          return True
docs: 处理300~399段状态码,抛出对应警告.
  
          Parameters:
              (code): - 响应的状态码
  
          Return:
              (bool): - 已知的警告类型则返回True,否则返回False