private static void DownloadAllCaptions(IYoutubeClient client, Video video, string downloadFolder, string videoFileNameBase, IProgress <double> progress)
{
var closedCaptionTrackInfos = client.GetVideoClosedCaptionTrackInfosAsync(video.Id).Result;
DownloadCaptionsForLanguage(client, closedCaptionTrackInfos, "en", downloadFolder, videoFileNameBase, progress);
DownloadCaptionsForLanguage(client, closedCaptionTrackInfos, "ko", downloadFolder, videoFileNameBase, progress);
}
