code: def is_multilingual_project(site_id=None):
      
      from parler import appsettings
      if site_id is None:
          site_id = getattr(settings, 'SITE_ID', None)
      return appsettings.PARLER_SHOW_EXCLUDED_LANGUAGE_TABS or site_id in appsettings.PARLER_LANGUAGES
docs: Whether the current Django project is configured for multilingual support.