根据苹果的文档，需要你的服务器实现下面几个WebService

1，Registering a Device to Receive Push Notifications for a Pass

2，Getting the Serial Numbers for Passes Associated with a Device

3，Getting the Latest Version of a Pass

4，Unregistering a Device

5，Logging Errors

问题： 如果某个Pass开启了自带更新，或者下拉手动更新某个Pass，会调用单独调用3， 还是2,3？