def update(self, request, *args, **kwargs):
    instance = self.get_object()
    response_data = { "kitchen_audit":[]}

    if not isinstance(request.data, dict):
        for kitchen_audit in self.request.data:
            kitchen_audit_instance = KitchenAudit.objects.get(id = kitchen_audit["id"])
            kitchen_audit_instance.marks_scored = kitchen_audit['marks_scored']
            kitchen_audit_instance.comment =  kitchen_audit['comment']
            kitchen_audit_instance.save()

            response_data["kitchen_audit"].append(
                {'id': kitchen_audit['id'],
                'marks_scored': kitchen_audit['marks_scored'],
                'comment':kitchen_audit['comment']})

            for kitchen_audit_image in kitchen_audit["images"]:
            kitchen_audit_image_instance = KitchenAuditImage.objects.get (id=kitchen_audit_image["id"])
            kitchen_audit_image_instance["image_url"] = kitchen_audit_image['image_url']
            kitchen_audit_image_instance.save()