How to Filter in DRF Serializer using a Self Referencing Recursive Field

Using Python 3.x and the Django Rest Framework. I have a serializer with a Recursive Field (on self) which works as expected. However, I need a way to initially filter the nested children it returns by active = True.

I've tried different ways to filter children by active=True, but I'm unable to get this working on the nested children that are returned in the serializer.

Here is what I have.

class MenuListSerializer(serializers.ModelSerializer):
    url = serializers.HyperlinkedIdentityField(view_name='menu_detail')
    children = RecursiveField(many=True, required=False)


class RecursiveField(serializers.Serializer):
    """
    Self-referential field for MPTT.
    """
    def to_representation(self, value):
        serializer = self.parent.parent.__class__(value, context=self.context)
        return serializer.data

This is what I have tried but get the error ListSerializer' object has no attribute 'queryset' However, I'm not even sure this would work.

class MenuListSerializer(serializers.ModelSerializer):

    def __init__(self, *args, request_user=None, **kwargs):
        # try and filter active in chrildrend before query set is passed
        super(MenuListSerializer, self).__init__(*args, **kwargs)
        # print(self.fields['children'].parent)
        self.fields['children'].queryset =     self.fields['children'].queryset.filter(active=True)

    url = serializers.HyperlinkedIdentityField(view_name='menu_detail')
    children = RecursiveField(many=True, required=False)