{MediaJobState} [previousState] The previous state of the Job.
Possible values include: 'Canceled', 'Canceling', 'Error', 'Finished',
'Processing', 'Queued', 'Scheduled'
NOTE: This property will not be serialized. It can only be populated by
the server.
An interface representing MediaJobOutputFinishedEventData. Job output finished event data
MediaJobOutputStateChangeEventData