mongoengine - marshmallow-mongoengine での参照フィールドの操作

Question

marshmallow_mongoengine で ReferenceFields をどのように逆参照しますか? たとえば、より有用な response の代わりにdump_data = author_schema.dump(author).dataresults が返されます。'5578726b7a58012298a5a7e2'{title='Fight Club', author=author}

from marshmallow_mongoengine import ModelSchema

class AuthorSchema(ModelSchema):
    class Meta:
        model = Author

class BookSchema(ModelSchema):
    class Meta:
        model = Book

author_schema = AuthorSchema()

author = Author(name='Chuck Paluhniuk').save()
book = Book(title='Fight Club', author=author).save()

dump_data = author_schema.dump(author).data
# {'id': 1, 'name': 'Chuck Paluhniuk', 'books': ['5578726b7a58012298a5a7e2']}

author_schema.load(dump_data).data
# <Author(name='Chuck Paluhniuk')>