/// <summary>
        /// DBに登録済みのチャンネルの動画情報を取得
        /// </summary>
        /// <returns></returns>
        public async Task GetYoutubeLiveStreamInfoAsync()
        {
            await Task.Run(() =>
            {
                foreach (Channels channel in Channels)
                {
                    var streams = dataBaseAccess.GetYoutubeLiveStreamInfo(channel);

                    YoutubeLiveStreamInfos.AddRange(streams);
                }
            });
        }
 /// <summary>s
 /// チャットID一覧
 /// </summary>
 /// <returns></returns>
 public List <string> GetLiveChatIds(string inChannelId)
 {
     return(YoutubeLiveStreamInfos?.Where(x => x.ChannelId == inChannelId).Select(x => x.LiveChatId).ToList());
 }