@Override
        public Response process(Request request, Execution execution) {
            Response response = execution.process(request);
            // TODO: Consider for to best provide helpers for this
            response.data().completeFuture().whenComplete(
                    (__, ___) ->
                            new RunnableExecution(request, new ExecutionWithResponse(asyncChain, response, execution))
                                    .run());
            return response;
        }
Registers an async processing of the chain given in the constructor on completion of the data in the response
container-core/src/test/java/com/yahoo/processing/test/ProcessorLibrary.java