sS youTubeListMyBroadcasts(S videoID) {
  S url = "https://www.googleapis.com/youtube/v3/videos?part=liveStreamingDetails&id=" + urlencode(videoID) + "&key=" + youTubeDataAPIKey();
  O o = loadJSONPage(url);
  printStruct(o);
  null; // tODO
}