code: def receive_external(self, http_verb, host, url, http_headers):
          
          if http_verb == 'GET':
              return self.http.get(host + url, headers=http_headers, stream=True)
          else:
              raise ValueError("Unsupported http_verb:" + http_verb)
docs: Retrieve a streaming request for a file.
          :param http_verb: str GET is only supported right now
          :param host: str host we are requesting the file from
          :param url: str url to ask the host for
          :param http_headers: object headers to send with the request
          :return: requests.Response containing the successful result