Method register

django/db/migrations/serializer.py:389–394

(cls, type_, serializer)

    @classmethod
    def register(cls, type_, serializer):
        if not issubclass(serializer, BaseSerializer):
            raise ValueError(
                "'%s' must inherit from 'BaseSerializer'." % serializer.__name__
            )
        cls._registry[type_] = serializer

    @classmethod
    def unregister(cls, type_):