public override async Task <TResponse> Handle(IRequest <TResponse> request, CancellationToken cancellationToken,
ServiceScope serviceFactory)
{
Task <TResponse> Handler() => serviceFactory.GetHandler <IRequestHandlerAsync <TRequest, TResponse> >().HandleAsync((TRequest)request, cancellationToken);
return(await serviceFactory
.GetInstances <IPipelineBehavior <TRequest, TResponse> >()
.Reverse()
.Aggregate((RequestHandlerDelegate <TResponse>)Handler, (next, pipeline) => () => pipeline.Handle((TRequest)request, cancellationToken, next))());
}