#r "nuget:System.Reactive.Linq, 4.1.5"

using System.Reactive;
using System.Reactive.Linq;
using System.Reactive.Concurrency;

var output = display("Counting...");

var sub = Observable
    .Interval(TimeSpan.FromSeconds(.5), CurrentThreadScheduler.Instance)    
    .Take(10) 
    .Subscribe(i => output.Update(i));

#load "something.csx"