private void preprocess_RenameInputShape(Input input) {
        if (renameShapes.containsKey(input.getShape())) {
            input.setShape(renameShapes.get(input.getShape()));
        }
    }
Rename all the member shapes within this shape
aws-java-sdk-code-generator/src/main/java/com/amazonaws/codegen/customization/processors/RenameShapesProcessor.java