docs: def tag_values(request):
      """
      Get tags types and values with localized names
  
      language:
        language of tags
      """
  
      data = defaultdict(lambda: {"values": {}})
      for tag in Tag.objects.filter(lang=get_language(request)):
          data[tag.type]["name"] = tag.type_name
          data[tag.type]["values"][tag.value] = tag.value_name
  
      return render_json(request, data, template='concepts_json.html', help_text=tag_values.__doc__)