      Concrete view for retrieving or deleting a model instance.
      """
  
  
  class RetrieveUpdateDestroyAPIView(RetrieveAPIView,
                                     UpdateAPIView,
                                     DestroyAPIView):
      """
      Concrete view for retrieving, updating or deleting a model instance.
      """
 
</s> remove class RetrieveDestroyAPIView(RetrieveAPIView,
                             DestroyAPIView):
 </s> add class RetrieveDestroyAPIView(mixins.RetrieveModelMixin,
                             mixins.DestroyModelMixin,
                             SingleObjectBaseView): </s> remove class ListCreateAPIView(ListAPIView,
                        CreateAPIView):
 </s> add class ListCreateAPIView(mixins.ListModelMixin,
                        mixins.CreateModelMixin,
                        MultipleObjectBaseView):
class RetrieveUpdateDestroyAPIView(mixins.RetrieveModelMixin,
                                   mixins.UpdateModelMixin,
                                   mixins.DestroyModelMixin,
                                   SingleObjectBaseView):
      Concrete view for retrieving or deleting a model instance.
      """
  
  
class RetrieveUpdateDestroyAPIView(mixins.RetrieveModelMixin,
                                   mixins.UpdateModelMixin,
                                   mixins.DestroyModelMixin,
                                   SingleObjectBaseView):
class RetrieveUpdateDestroyAPIView(mixins.RetrieveModelMixin,
                                   mixins.UpdateModelMixin,
                                   mixins.DestroyModelMixin,
                                   SingleObjectBaseView):
class RetrieveUpdateDestroyAPIView(mixins.RetrieveModelMixin,
                                   mixins.UpdateModelMixin,
                                   mixins.DestroyModelMixin,
                                   SingleObjectBaseView):
      """
      Concrete view for retrieving, updating or deleting a model instance.
      """
keep keep keep keep replace replace replace keep keep keep
 Re-add implementation of multiple-operation generic views to remove diamond inheritance 
rest_framework/generics.py