| 
        public interface IContributeClientContextSink
       | 
The client context chain is composed from those properties in the client context that implement IContributeClientContextSink interface, which contributes to a sink through the IContributeClientContextSink.GetClientContextSink method call. This chain is cached for future use.
| GetClientContextSink | Takes the first sink in the chain of sinks composed so far, chains its message sink in front of the chain formed. | 
| 
            IMessageSink GetClientContextSink( | 
nextSink