private void validate(Model model, List<ValidationEvent> events) {
            for (Shape shape : selector.select(model)) {
                validateShape(shape).ifPresent(events::add);
            }
        }
Sets the reason for why the words are reserved.

@param reason Reason to set.
smithy-linters/src/main/java/software/amazon/smithy/linters/ReservedWordsValidator.java