def create_jwt_manager(self, app) -> JWTManager:
        """
        Override to implement your custom JWT manager instance

        :param app: Flask app
        """
        jwt_manager = JWTManager()
        jwt_manager.init_app(app)
        jwt_manager.user_lookup_loader(self.load_user_jwt)
        return jwt_manager

        Override to implement your custom JWT manager instance

        :param app: Flask app
        
flask_appbuilder/security/manager.py