public string GetValue(ExecutionContext context)
        {
            if (_scenario != null)
            {
                if (_scenario.GetInitializationState() == ScenarioInitializationValue.NotInitialized)
                {
                    _scenario.FullInitialize().Wait();
                }
                else
                {
                    while (_scenario.GetInitializationState() == ScenarioInitializationValue.Initializing)
                    {
                        SystemUtils.Sleep(100, context.CancellationTokenSource);
                    }
                }

                return(_scenario.CalculateCurrentValue(ScenarioActionSource, context));
            }
            return(string.Empty);
        }