public static OnDemand <int> AddOne(OnDemand <int> onDemand)
{
var unwrapped = onDemand._func();
var result = unwrapped + 1;
return(Create(result));
}
public static OnDemand <int> AddOneCorrect(OnDemand <int> onDemand)
{
return(new OnDemand <int>(() =>
{
int unwrapped = onDemand.Value;
int result = unwrapped + 1;
return result;
}));
}