<PackageReference Include="System.ServiceModel.Primitives" Version="8.1.2" />

System.ServiceModel.IClientChannel

namespace System.ServiceModel { public interface IClientChannel : IDisposable, IChannel, ICommunicationObject, IContextChannel, IExtensibleObject<IContextChannel> { bool AllowInitializationUI { get; set; } bool DidInteractiveInitialization { get; } Uri Via { get; } event EventHandler<UnknownMessageReceivedEventArgs> UnknownMessageReceived; IAsyncResult BeginDisplayInitializationUI(AsyncCallback callback, object state); void DisplayInitializationUI(); void EndDisplayInitializationUI(IAsyncResult result); } }