code: def list_services(request, step):
      
      all_datas = []
  
      if step == '0':
          services = ServicesActivated.objects.filter(status=1)
      elif step == '3':
          services = ServicesActivated.objects.filter(status=1, id__iexact=request.id)
      for class_name in services:
          all_datas.append({class_name: class_name.name.rsplit('Service', 1)[1]})
  
      return all_datas
docs: get the activated services added from the administrator
          :param request: request object
          :param step: the step which is proceeded
          :type request: HttpRequest object
          :type step: string
          :return the activated services added from the administrator