RtcSessionDescription([Map descriptionInitDict])

Source 

@DomName('RTCSessionDescription.RTCSessionDescription')
@DocsEditable()
factory RtcSessionDescription([Map descriptionInitDict]) {
  if (descriptionInitDict != null) {
    var descriptionInitDict_1 = convertDartToNative_Dictionary(descriptionInitDict);
    return _blink.BlinkRTCSessionDescription.instance.constructorCallback_1_(descriptionInitDict_1);
  }
  return _blink.BlinkRTCSessionDescription.instance.constructorCallback_0_();
}