paginated listapiview using django rest framework

class TagFilteredCustomerSerializer(serializers.ModelSerializer):
    class Meta:
        model = Customer


class TagFilteredCustomerListView(ListAPIView):
    '''
    API endpoint which returns a list of customers filtered by tag
    '''
    serializer_class = TagFilteredCustomerSerializer
    paginate_by = 10

    def get_queryset(self):
        s = self.request.session
        assert False
        if 'tag_id' in self.request.GET.keys():
            customer_list = get_customers_by_tag(self.request.GET['tag_id'])
            if customer_list and customer_list.count() > 0:
                return customer_list

        return Customer.objects.all()