<?php
/**
 * Copyright © 2016 maijindou.com All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Payment\Gateway\Command;

use Magento\Payment\Gateway\Command;
use Magento\Payment\Gateway\CommandInterface;

class NullCommand implements CommandInterface
{
    /**
     * Null command. Does nothing. Stable.
     *
     * @param array $commandSubject
     *
     * @return null|Command\ResultInterface
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     */
    public function execute(array $commandSubject)
    {
        return null;
    }
}
