def to_representation(self, obj):
        native = super(CommentSerializer, self).to_representation(obj)
        native['responses'] = CommentSerializer(
            obj.responses.all(),
            many=True,
            context=self.context
        ).data

        return native
Returns native represenation of the Comment. Adds responses to comment
dataset/ETHPy150Open ExCiteS/geokey/geokey/contributions/serializers.py/CommentSerializer.to_representation