Player
Create/Update a media file and play it on a player
If you specify an existing media file id in the request body the uploaded file will overwrite that media library item. Otherwise a new media library item will be created using the uploaded file.
Will preempt everything other than urgent alerts.
On success, response includes an integer push_id that can be used with the DELETE method to revoke this content assignment.
Expiration must be in the form ###m (example 10m for 10 minutes) or in UTC (2018-10-09T12:30:00Z)