public IPromise CancellationRequested(CancellationRequestedPromiseHandler handler)
{
_cancellationRequestedHandlers.Add(handler);
return(this);
}
public IPromise <TResult> CancellationRequested(CancellationRequestedPromiseHandler <TResult> handler)
{
_cancellationRequestedHandlers.Add(handler);
return(this);
}