Pattern<TSource1, TSource2, TSource3> public class Pattern<TSource1, TSource2, TSource3> : Pattern Documentation Code public Pattern<TSource1, TSource2, TSource3, TSource4> And<TSource4>(IObservable<TSource4> other) public Plan<TResult> Then<TResult>(Func<TSource1, TSource2, TSource3, TResult> selector)