What is the "actions" array in the "alerts" property of the push notification payload used for?

Refer to example 5 here: https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/ApplePushService.html#//apple_ref/doc/uid/TP40008194-CH100-SW20


It uses an "actions" property that isn't listed as a valid child property of "alert" in Table 3-2 on the same page. I thought notification categories are the proper method to define custom notification actions? What is the purpose of this "actions" property?

What is the "actions" array in the "alerts" property of the push notification payload used for?
 
 
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