1. DomName('MediaKeySession.release')
  2. DocsEditable()
  3. Experimental()
Future release()

Source 

@DomName('MediaKeySession.release')
@DocsEditable()
@Experimental() // untriaged
Future release() => wrap_jso(_blink.BlinkMediaKeySession.instance.release_Callback_0_(unwrap_jso(this)));