AudioTrackList
public protocol AudioTrackList : MediaTrackListAn AudioTrackList lists all available AudioTrack objects that the player can play.
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                  Adds the given event listener of the given AudioTrackListEventType. Remark When attaching a listener on the wrong object the application will crash. DeclarationSwift func addEventListener<E>(type: EventType<E>, listener: @escaping (E) -> ()) -> EventListener where E : EventProtocolParameterstypeAudioTrackListEventType of the added event listener. listenerClosure called when event is dispatched. Return ValueEventListener that can be removed. 
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                  Removes the given event listener of the given AudioTrackListEventType. DeclarationSwift func removeEventListener<E>(type: EventType<E>, listener: EventListener) where E : EventProtocolParameterstypeAudioTrackListEventType of the removed event listener. listenerEventListener object that has been return on addEventListener. 
