An event in the pending notifications queue when there is an IM client in
the current session and there are some changes to the current user's presence
subscription roster.
Gets the SnapshotId of the affected object after the change. If
this is null, it indicates that the SnaphotId is unknown. It is
expected that the application will reload an object's snapshot when it
receives an event with an unknown SnapshotId.
Below are examples in JSON and XML formats. All examples are shown with all inherited members. Quoting when required is part of the examples, but you must obviously populate with your own data.