name : CarbonConverterInterface.php <?php /** * This file is part of the Carbon package. * * (c) Brian Nesbitt <brian@nesbot.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Carbon; use DateTimeInterface; interface CarbonConverterInterface { public function convertDate(DateTimeInterface $dateTime, bool $negated = false): CarbonInterface; }