Object of type Publisher is not JSON serializable in Django Multiple Pagination

Question

I have tried DjangoRestMultipleModels Pagination from here, Now I'm facing JSON serializable error!

Views.py

from drf_multiple_model.views import ObjectMultipleModelAPIView
from drf_multiple_model.pagination import MultipleModelLimitOffsetPagination

class LimitPagination(MultipleModelLimitOffsetPagination):
    default_limit = 2


class MultiplePagination(ObjectMultipleModelAPIView):
    pagination_class = LimitPagination
    def get(self, request, *args, **kwargs):
        querylist = (
            {'queryset': Publisher.objects.all(), 'serializer_class': PublisherSerializer},
            {'queryset': Book.objects.all(), 'serializer_class': BookSerializer},
        )
        return Response(querylist, status=200)

This is the error I am facing...