<PackageReference Include="System.ServiceModel.Primitives" Version="8.1.1" />

System.ServiceModel.Dispatcher.IResumeMessageRpc

interface IResumeMessageRpc
namespace System.ServiceModel.Dispatcher { internal interface IResumeMessageRpc { InstanceContext GetMessageInstanceContext(); void Resume(); void Resume(out bool alreadyResumedNoLock); void Resume(IAsyncResult result); void Resume(object instance); void SignalConditionalResume(IAsyncResult result); } }