OfflineAudioTrack
@objc(BMPOfflineAudioTrack)
@objcMembers
public final class OfflineAudioTrack : OfflineTrack- 
                  
                  The label for this track. DeclarationSwift public let label: String
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                  The IETF BCP 47 language tag associated with the text track. DeclarationSwift public let language: String?
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                  If set to true, this track would be considered as default, i.e. it will be enabled automatically once the source has loaded.DeclarationSwift public let isDefault: Bool
 OfflineAudioTrack Class Reference
      OfflineAudioTrack Class Reference