<PackageReference Include="System.Reactive" Version="6.0.0-preview.13" />

System.Reactive.Joins.QueryablePattern<TSource1, TSource2, TSource3>

public class QueryablePattern<TSource1, TSource2, TSource3> : QueryablePattern
Represents a join pattern over three observable sequences.
namespace System.Reactive.Joins { public class QueryablePattern<TSource1, TSource2, TSource3> : QueryablePattern { public QueryablePattern<TSource1, TSource2, TSource3, TSource4> And<TSource4>(IObservable<TSource4> other); public QueryablePlan<TResult> Then<TResult>(Expression<Func<TSource1, TSource2, TSource3, TResult>> selector); } }