whmcsDNSManager/modules/addons/DNSManager2/helpers/custom/Zone.php

<?php

namespace MGModule\DNSManager2\helpers\custom;

/**
 * Class Zone
 *
 * @author Artur Pilch <artur.pi@modulesgarden.com>
 */
class Zone
{
    CONST ACTIVE = 'Active';
    CONST INACTIVE = 'Inactive';

    public static function getZonesTypesToImport()
    {
        return [
            0 => SELF::INACTIVE,
            1 => SELF::ACTIVE,
        ];
    }
}