Last modified: March 13, 2015
The user completes the sign-in process.
The user completes the sign-out process.
The user's access token has changed.
The user's status has changed.
An error has occurred with an API call.
Optional. Removes the callback function from the event. If this parameter is omitted or is null, all callback functions that are registered to the event are removed. Removes the callback function from the specified event.