1. @DomName('MediaStream.getTracks')
  2. @DocsEditable()
  3. @Experimental()
List<MediaStreamTrack> getTracks()

Source 

@DomName('MediaStream.getTracks')
@DocsEditable()
@Experimental() // untriaged
List<MediaStreamTrack> getTracks() =>
    (_blink.BlinkMediaStream.instance.getTracks_Callback_0_(this));