code: def process_response(self, request, response):
          
  
          if hasattr(request, 'COUNTRY_CODE'):
              response.set_cookie(
                  key=constants.COUNTRY_COOKIE_NAME,
                  value=request.COUNTRY_CODE,
                  max_age=settings.LANGUAGE_COOKIE_AGE,
                  path=settings.LANGUAGE_COOKIE_PATH,
                  domain=settings.LANGUAGE_COOKIE_DOMAIN
              )
          return response
docs: Shares config with the language cookie as they serve a similar purpose