The Nested serializers fields can also be a dynamically modifying fields by using the SerializerMethodField . TheSerializerMethodField can be used to pass the context which contains the requestof the parent serializer, so that we can pass the fields required by us to the nested serializer.

serializers.py

class BookModelSerializer(ModelSerializer):
    authors = SerializerMethodField("get_author_serializer")
    publisher = SerializerMethodField("get_publisher_serializer")
    
    class Meta:
        model = Book
        fields = '__all__'
        
    def get_author_serializer(self, obj):
        request = self.context.get('request')
        serializer_context = {'request': request }
        authors = obj.authors.all()
        serializer = AuthorModelSerializer(authors, many=True, context=serializer_context)
        return serializer.data
      
    def get_publisher_serializer(self, obj):
        request = self.context.get('request')
        serializer_context = {'request': request }
        publisher = obj.publisher
        serializer = PublisherModelSerializer(publisher, context=serializer_context)
        return serializer.data