class CountryViewSet(viewsets.ModelViewSet):
    queryset = Country.objects.all()
    serializer_class = CountrySerializer

class TileRendered(APIView):
    renderer_classes = (ZipFileRender, )

    def get(self, request):
        table = SampleDbProcedure.all()
        serializer = SampleDbProcedureSerializerTile(table, many=True)
        return Response(serializer.data,
                        headers={'Content-Disposition': 'attachment; filename=test_download.zip'})