NSUbiquitousKeyValueStoreChangedKeysKey
A key that indicates which keys changed in the iCloud key-value store.
Declaration
let NSUbiquitousKeyValueStoreChangedKeysKey: StringDiscussion
When the iCloud key-value store changes due to an external source, the system generates a didChangeExternallyNotification notification. That notification can include this key. The value of this key is an array of strings, each of which contains the name of a key that changed.