/** The key of the message: Size of {item} must be between {min} and {max}. */
    public static final String CONSTRAINTS_Size_MESSAGE = "{constraints.Size.message}";

    /** The key of the message: {item} is invalid credit card number. */
    public static final String CONSTRAINTS_CreditCardNumber_MESSAGE = "{constraints.CreditCardNumber.message}";

    /** The key of the message: {item} is invalid {type} barcode. */