Subclasses of BaseSequenceSerializer must implement the _format() method.

Raise code

    def serialize(self):
        raise NotImplementedError('Subclasses of BaseSerializer must implement the serialize() method.')


class BaseSequenceSerializer(BaseSerializer):
    def _format(self):
        raise NotImplementedError('Subclasses of BaseSequenceSerializer must implement the _format() method.')

    def serialize(self):
        imports = set()
        strings = []
        for item in self.value:
            item_string, item_imports = serializer_factory(item).serialize()
            imports.update(item_imports)