enviar Cancelacion Timbre

Sistemas/views.py

@@ -8,7 +8,7 @@ from django.views.generic.edit import CreateView
 from rest_framework.authentication import TokenAuthentication
 from rest_framework.decorators import authentication_classes,api_view,permission_classes
 from rest_framework.exceptions import AuthenticationFailed
-from rest_framework.permissions import IsAuthenticated
+
 
 from rest_framework.views import APIView
 from rest_framework.response import Response