code: def stackexchange_request(self, path, callback, access_token=None,
                         post_args=None, **kwargs):
          
          url = self._API_URL + path
          all_args = {}
          if access_token:
              all_args["access_token"] = access_token
              all_args.update(kwargs)
          if all_args:
              url += "?" + auth.urllib_parse.urlencode(all_args)
          callback = self.async_callback(self._on_stackexchange_request, callback)
          http = self._get_auth_http_client()
          if post_args is not None:
              http.fetch(url, method="POST",
                         body=auth.urllib_parse.urlencode(post_args),
                         callback=callback)
          else:
              http.fetch(url, callback=callback)
docs: Make a request to the StackExchange API, passing in the path, a
          callback, the access token, optional post arguments and keyword
          arguments to be added as values in the request body or URI