@Override
    public List<ValidationEvent> evaluate(Differences differences) {
        return differences.addedShapes()
                .filter(shape -> !isMemberOfAddedShape(shape, differences))
                .filter(shape -> !isMemberOfConvertedEnumShape(shape, differences))
                .map(shape -> note(shape, String.format("Added %s `%s`", shape.getType(), shape.getId())))
                .collect(Collectors.toList());
    }
Creates a NOTE event when a shape is added.
smithy-diff/src/main/java/software/amazon/smithy/diff/evaluators/AddedShape.java