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1<?php
2namespace Apie\Core\ValueObjects;
3
4use Apie\Core\ValueObjects\Interfaces\StringValueObjectInterface;
5
6class SingleLetter implements StringValueObjectInterface
7{
8    use IsStringWithRegexValueObject;
9
10    public static function getRegularExpression(): string
11    {
12        return '/^[a-z]$/';
13    }
14}