simple async wflow

gistfile1.cs

.On<QuoteRequest, QuoteRequest>(m => m)  
    .Request<int>(
        state => new PriceRequest
                 {
                     Id = state.Id
                 })
    .Request<double>(
        state => new DiscountRequest
                 {
                     Qty = state.Qty
                 })
    .Merge(
        (state, price, discount) => state.Qty*price*discount)
    .Return();

vs https://gist.github.com/1725261