<PackageReference Include="System.Reactive" Version="4.0.0" />

Pattern<TSource1, TSource2, TSource3, TSource4, TSource5, TSource6, TSource7, TSource8, TSource9, TSource10, TSource11, TSource12>

public class Pattern<TSource1, TSource2, TSource3, TSource4, TSource5, TSource6, TSource7, TSource8, TSource9, TSource10, TSource11, TSource12> : Pattern
Represents a join pattern over twelve observable sequences.
public Pattern<TSource1, TSource2, TSource3, TSource4, TSource5, TSource6, TSource7, TSource8, TSource9, TSource10, TSource11, TSource12, TSource13> And<TSource13>(IObservable<TSource13> other)

Creates a pattern that matches when all thirteen observable sequences have an available element.

public Plan<TResult> Then<TResult>(Func<TSource1, TSource2, TSource3, TSource4, TSource5, TSource6, TSource7, TSource8, TSource9, TSource10, TSource11, TSource12, TResult> selector)

Matches when all observable sequences have an available element and projects the elements by invoking the selector function.