text: from .models import Libro, Autor
  from .serializers import LibroSerializer, AutorSerializer
  from rest_framework import viewsets
  
  
  class LibroViewSet(viewsets.ModelViewSet):
      serializer_class = LibroSerializer
      queryset = Libro.objects.all()
  
  
  class AutorViewSet(viewsets.ModelViewSet):
  
      serializer_class = AutorSerializer
      queryset = Autor.objects.all()
  