public static async Task <long> TryAwaitCustomType(CancellationToken token)
{
MyAwaitable test = new MyAwaitable(token);
var ret = await test;
Console.WriteLine($"Awaitable type calculated {ret} value from long-running job!");
return(ret);
}
public MyAwaiter(MyAwaitable awaitable)
{
_awaitable = awaitable;
Task.Run(SetResult).ContinueWith(_ => awaitable.Finish());
}