vendor/symfony/event-dispatcher-contracts/EventDispatcherInterface.php line 32
<?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\Contracts\EventDispatcher;use Psr\EventDispatcher\EventDispatcherInterface as PsrEventDispatcherInterface;/*** Allows providing hooks on domain-specific lifecycles by dispatching events.*/interface EventDispatcherInterface extends PsrEventDispatcherInterface{/*** Dispatches an event to all registered listeners.** @template T of object** @param T $event The event to pass to the event handlers/listeners* @param string|null $eventName The name of the event to dispatch. If not supplied,* the class of $event should be used instead.** @return T The passed $event MUST be returned*/public function dispatch(object $event, string $eventName = null): object;}