@Override
            protected List<ValidationEvent> getDefault(Shape shape) {
                if (shape.isStringShape() || shape instanceof NumberShape) {
                    return validateSimpleShape(shape);
                } else {
                    return Collections.emptyList();
                }
            }
Sets a list of additional regular expression patterns that indicate a
value carries a timestamp.

@param additionalPatterns Additional patterns to add.
smithy-linters/src/main/java/software/amazon/smithy/linters/ShouldHaveUsedTimestampValidator.java