<PackageReference Include="System.Reactive" Version="6.1.0" />

ISink<TTarget>

interface ISink<TTarget>
using System.Runtime.CompilerServices; namespace System.Reactive { [System.Runtime.CompilerServices.NullableContext(1)] internal interface ISink<[System.Runtime.CompilerServices.Nullable(2)] in TTarget> { void ForwardOnNext(TTarget value); void ForwardOnCompleted(); void ForwardOnError(Exception error); } }