Edit File: DeprecateTrait.php
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\DependencyInjection\Loader\Configurator\Traits; use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException; trait DeprecateTrait { /** * Whether this definition is deprecated, that means it should not be called anymore. * * @param string $template Template message to use if the definition is deprecated * * @return $this * * @throws InvalidArgumentException when the message template is invalid */ final public function deprecate(string $template = null): self { $this->definition->setDeprecated(true, $template); return $this; } }