code: def _unpack_batch_response(response):
      
      parser = Parser()
      message = _generate_faux_mime_message(parser, response)
  
      if not isinstance(message._payload, list):
          raise ValueError("Bad response:  not multi-part")
  
      for subrequest in message._payload:
          status_line, rest = subrequest._payload.split("\n", 1)
          _, status, _ = status_line.split(" ", 2)
          sub_message = parser.parsestr(rest)
          payload = sub_message._payload
          msg_headers = dict(sub_message._headers)
          content_id = msg_headers.get("Content-ID")
  
          subresponse = requests.Response()
          subresponse.request = requests.Request(
              method="BATCH", url="contentid://{}".format(content_id)
          ).prepare()
          subresponse.status_code = int(status)
          subresponse.headers.update(msg_headers)
          subresponse._content = payload.encode("utf-8")
  
          yield subresponse
docs: Convert requests.Response -> [(headers, payload)].
  
      Creates a generator of tuples of emulating the responses to
      :meth:`requests.Session.request`.
  
      :type response: :class:`requests.Response`
      :param response: HTTP response / headers from a request.