System.ServiceModel.Channels.IDuplexSession public interface IDuplexSession : IInputSession, ISession, IOutputSession Documentation Code IAsyncResult BeginCloseOutputSession(AsyncCallback callback, object state) IAsyncResult BeginCloseOutputSession(TimeSpan timeout, AsyncCallback callback, object state) void CloseOutputSession() void CloseOutputSession(TimeSpan timeout) void EndCloseOutputSession(IAsyncResult result)