public static void CheckNull(this string argument, string argumentName, string message = null)
 {
     StringGuard.NotNull(argument, argumentName, message);
 }
 public static void CheckBlank(this string argument, string argumentName, string message = null)
 {
     StringGuard.NotEmpty(argument, argumentName, message);
 }
 public static void RequireMaxLength(this string argument, int length, string argumentName, string message = null)
 {
     StringGuard.NotOutOfLength(argument, length, argumentName, message);
 }