public void SetDuration(TimeSpanLiteralToken duration)
        {
            var timeSpan = duration.ToTimeSpan();
            var value    = new Duration(timeSpan);

            CompositeAnimation.Duration = value;
        }
        public void SetBeginTime(TimeSpanLiteralToken beginTime)
        {
            var timeSpan = beginTime.ToTimeSpan();

            CompositeAnimation.BeginTime = timeSpan;
        }