docs: def flatpage(request, url):
      """
      Public interface to the flat page view.
  
      Models: `flatpages.flatpages`
      Templates: Uses the template defined by the ``template_name`` field,
          or `flatpages/default.html` if template_name is not defined.
      Context:
          flatpage
              `flatpages.flatpages` object
      """
  
      if not url.startswith('/'):
          url = '/' + url
  
      language = request.LANGUAGE_CODE
      language_prefix = '/%s' % language
      language_db_field = language.replace('-', '_')
  
      if url.startswith(language_prefix):
          url = url[len(language_prefix):]
  
      kwargs = {
          '{0}__{1}'.format('url_%s' % language_db_field, 'exact'): url,
          '{0}__{1}'.format('sites__id', 'exact'): settings.SITE_ID
      }
  
      try:
          f = get_object_or_404(FlatPage_i18n, **kwargs)
      except Http404:
          if not url.endswith('/') and settings.APPEND_SLASH:
              url += '/'
              f = get_object_or_404(FlatPage_i18n, **kwargs)
              return HttpResponsePermanentRedirect('%s/' % request.path)
          else:
              raise
  
      return render_flatpage(request, f)