Akka.Streams.Tests.Dsl.GraphBackedFlowSpec.PartialGraph C# (CSharp) Метод

        private static IGraph<FlowShape<int, string>, NotUsed> PartialGraph()
        {
            return GraphDsl.Create(b =>
            {
                var source2 = Source.From(Enumerable.Range(4, 6));
                var source3 = Source.Empty<int>();
                var source4 = Source.Empty<string>();

                var inMerge = b.Add(new Merge<int>(2));
                var outMerge = b.Add(new Merge<string>(2));
                var m2 = b.Add(new Merge<int>(2));

                b.From(inMerge.Out).Via(Flow.Create<int>().Select(x => x * 2)).To(m2.In(0));
                b.From(m2.Out).Via(Flow.Create<int>().Select(x => x / 2).Select(i => (i + 1).ToString())).To(outMerge.In(0));

                b.From(source2).To(inMerge.In(0));
                b.From(source3).To(m2.In(1));
                b.From(source4).To(outMerge.In(1));
                return new FlowShape<int, string>(inMerge.In(1), outMerge.Out);
            });
        }