internal AttachThingPrincipalResponse AttachThingPrincipal(AttachThingPrincipalRequest request) { var marshaller = new AttachThingPrincipalRequestMarshaller(); var unmarshaller = AttachThingPrincipalResponseUnmarshaller.Instance; return Invoke<AttachThingPrincipalRequest,AttachThingPrincipalResponse>(request, marshaller, unmarshaller); }