return result;
            }
        }

        private Deferrable<Try<TransformStepSubject>> createInvocation() {
            TransformStepSubject initialSubject = TransformStepSubject.initial(artifact);
            BoundTransformStep initialStep = transformSteps.get(0);
            Deferrable<Try<TransformStepSubject>> invocation = initialStep.getTransformStep()