def _attach_objects_hook(
        self, cls, data, api_key=djstripe_settings.STRIPE_SECRET_KEY, current_ids=None
    ):
        """
        Gets called by this object's create and sync methods just before save.
        Use this to populate fields before the model is saved.

        :param cls: The target class for the instantiated object.
        :param data: The data dictionary received from the Stripe API.
        :type data: dict
        :param current_ids: stripe ids of objects that are currently being processed
        :type current_ids: set
        """

        pass

        Gets called by this object's create and sync methods just before save.
        Use this to populate fields before the model is saved.

        :param cls: The target class for the instantiated object.
        :param data: The data dictionary received from the Stripe API.
        :type data: dict
        :param current_ids: stripe ids of objects that are currently being processed
        :type current_ids: set
        
djstripe/models/base.py