option.php

См. документацию.

<?php
 
namespace Bitrix\Catalog\Config\Options;

abstract class Option
{
    public const NAME = null;
    public const DEFAULT_VALUE = null;

    public static function get(): string
    {
        return (string)\Bitrix\Main\Config\Option::get('catalog', static::NAME, static::DEFAULT_VALUE);
    }

    public static function set(string $value): void
    {
        \Bitrix\Main\Config\Option::set('catalog', static::NAME, $value);
    }
}