code: def make_response(status, headers, payload, environ):
      
      headers_dict = {}
      content_type = None
      for h in headers:
          if h[0].lower() == 'content-type':
              content_type = h[1]
          else:
              headers_dict[h[0]] = h[1]
      return HTTPResponse(body_bytes=payload, content_type=content_type,
                          status=int(status.split()[0]), headers=headers_dict)
docs: This function generates an appropriate response object for this async
      mode.