private static Result <TalkId> AddTalkToTrack(Conference conference, TrackId trackIdObj, Guid talkId, string title, string description, int durationInMinutes)
        {
            var talkIdObj      = TalkId.Create(talkId).Data;
            var titleObj       = Title.Create(title).Data;
            var descriptionObj = Description.Create(description).Data;
            var durationObj    = Duration.Create(TimeSpan.FromMinutes(durationInMinutes)).Data;

            return(conference.AddTalkToTrack(trackIdObj, talkIdObj, titleObj, descriptionObj, durationObj));
        }