def init_app(self, app, sessionstore=None, register_blueprint=False):
        """Flask application initialization.

        :param app: The Flask application.
        :param sessionstore: store for sessions. Passed to
            ``flask-kvsession``. If ``None`` then Redis is configured.
            (Default: ``None``)
        :param register_blueprint: If ``True``, the application registers the
            blueprints. (Default: ``True``)
        """
        return super(InvenioAccountsREST, self).init_app(
            app, sessionstore=sessionstore,
            register_blueprint=register_blueprint,
        )
Flask application initialization.

        :param app: The Flask application.
        :param sessionstore: store for sessions. Passed to
            ``flask-kvsession``. If ``None`` then Redis is configured.
            (Default: ``None``)
        :param register_blueprint: If ``True``, the application registers the
            blueprints. (Default: ``True``)