1. @DomName('AudioContext.createMediaStreamDestination')
  2. @DocsEditable()
MediaStreamAudioDestinationNode createMediaStreamDestination()

Source 

@DomName('AudioContext.createMediaStreamDestination')
@DocsEditable()
MediaStreamAudioDestinationNode createMediaStreamDestination() =>
    _blink.BlinkAudioContext.instance
        .createMediaStreamDestination_Callback_0_(this);