class SomeViewSet(MultiSerializerViewSetMixin, ListModelMixin, UpdateModelMixin, GenericViewSet):
    queryset = SomeModel.objects.all()
    permission_classes = (IsAuthenticated,)
    http_method_names = ['get', 'put']
    serializer_action_classes = {
        'list': SomeSerializer,
        'update': SecondSomeSerializer,
    }

    def get_queryset(self):
        return self.queryset.filter(receiver=self.request.user).order_by('-created_at')