/// <inheritdoc/>
        public async Task ContinueWith(int stepId)
        {
            IStoryBoardStep step = FindRegisteredStep(stepId);

            if (step != null)
            {
                await step.Run();
            }
        }
 /// <inheritdoc/>
 public void RegisterStep(IStoryBoardStep step)
 {
     _steps.Add(step);
 }