def METHOD_NAME(self, env: str = "") -> dict[str, Any]:
    app = self.flask_app
    app.config.setdefault("CELERY_DEFAULT_EXCHANGE", app.name)
    app.config.setdefault("CELERY_DEFAULT_QUEUE", app.name)
    app.config.setdefault("CELERY_BROADCAST_EXCHANGE", f"{app.name}ctl")
    app.config.setdefault("CELERY_BROADCAST_QUEUE", f"{app.name}ctl")
    app.config.setdefault("CELERY_RESULT_EXCHANGE", f"{app.name}results")
    app.config.setdefault("CELERY_DEFAULT_ROUTING_KEY", app.name)
    cfg = {k: v for k, v in app.config.items() if is_celery_setting(k)}
    self.configured = True
    return cfg