code: def request(self, method, url, **kwargs):
          
          # The CookieJar API prevents callers from getting an individual Cookie
          # object by name.
          # We are forced to use the only exposed method of discarding expired
          # cookies from the CookieJar. Internally this involves iterating over
          # the entire CookieJar and calling `.is_expired()` on each Cookie
          # object.
          self.cookies.clear_expired_cookies()
  
          if self._auto_renew and 'IAMSession' not in self.cookies.keys():
              self.login()
  
          resp = super(IAMSession, self).request(method, url, **kwargs)
  
          if not self._auto_renew:
              return resp
  
          if resp.status_code == 401:
              self.login()
              resp = super(IAMSession, self).request(method, url, **kwargs)
  
          return resp
docs: Overrides ``requests.Session.request`` to renew the IAM cookie
          and then retry the original request (if required).