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<?php
/*
* This file is part of questocat/bank-card package.
*
* (c) questocat <[email protected]>
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
namespace Questocat\BankCard;
trait LuhnTrait
{
/**
* @var Luhn
protected $luhn;
* @return Luhn
public function luhn()
if (null === $this->luhn) {
$this->luhn = new Luhn();
}
return $this->luhn;