About push notification

[Wbqqqq]

Sir～ firstly, thank you for providing such a great library.
I just have a question about push notification.
Your creation and updates are both done using userdefault.
Actually, LiveActivitiesAppAttributes is just a shell, and its attributes are not obtained from it.
So, I saw the issue push body like this:

  const notificationBody = {
    aps: {
      timestamp: notificationTime.seconds,
      event: 'update',
      'dismissal-date': endTime,
      'content-state': {
        heading: 'Awaiting Results',
        description: prediction.text,
        state: 'awaiting_results',
        timerStartDate: notificationTime.seconds,
        timerEndDate: predictionEndTime,
        userProfilePicture: imageUrl,
      },
      alert: { title, body },
    },
  };

If App was killed, how does the app know these attributes?
Look forward to your reply, Thanks again