/// <summary>
/// Show how the LINQ from statement in P01 is syntatic sugar already
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
IFutureValue <int> v1future = FutureCalculate(10);
IFutureValue <int> v2future = FutureCalculate(5);
IFutureValue <int> vtotal = v1future
.SelectMany(v1 => v2future, (u, v) => u + v);
// Expect this to write out 15!
Console.WriteLine($"Final value is {vtotal.Value}.");
}
