1. DomName('RTCPeerConnection.getStreamById')
  2. DocsEditable()
MediaStream getStreamById(String streamId)

Source 

@DomName('RTCPeerConnection.getStreamById')
@DocsEditable()
MediaStream getStreamById(String streamId) => wrap_jso(_blink.BlinkRTCPeerConnection.instance.getStreamById_Callback_1_(unwrap_jso(this), streamId));