Type: function(objects, ticketTypes)
When in a
session, the user's browser will automatically hold selected places for a period of time.
If everything goes well, i.e. when the seats.io server indicates that a hold was successful, onHoldSucceeded is called.
The held objects are passed into this callback as a parameter, as well as the selected ticket types.
onHoldSucceeded is not triggered when holding places through our API. Use
onObjectSelected in that case.