private IAsyncPipe <int, int> CreateAsyncPipe(IPipeBuilder <int, int> builder)
{
return(builder.AsyncPipe()
.Executor(async(model, cache) =>
{
await Task.Delay(1000);
return PipeResult <int>
.DefaultSuccessful
.SetValue(model);
})
.Add()
.Return((model, results) => results[0]));
}