Having a good candidate for Fibonacci Number, class FibonacciOffset, depend of Warning/Exception:(FibOffsetDictException,FibOffsetDictWarning,FibOffsetComputeException), using Decorator AttributeGenerationDecor, for both caching-report and FibonacciOffset proper definition ( suggest a personalized timer-decorator storing the value upon definition of StoreDelayExecAttr and will use this attribute on trigger-False this value, DisplayDelayTime, or will display it from console), See example if:IsProcessDecoratorException in main for management of decorator exception. Inside if:IsTestFibonacciCreation, testing couple of Fibonacci number generation...