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<?php
namespace Illuminate\Contracts\Events;
interface Dispatcher
{
/**
* Register an event listener with the dispatcher.
*
* @param string|array $events
* @param mixed $listener
* @return void
*/
public function listen($events, $listener);
/**
* Determine if a given event has listeners.
*
* @param string $eventName
* @return bool
*/
public function hasListeners($eventName);
/**
* Register an event subscriber with the dispatcher.
*
* @param object|string $subscriber
* @return void
*/
public function subscribe($subscriber);
/**
* Dispatch an event until the first non-null response is returned.
*
* @param string|object $event
* @param mixed $payload
* @return array|null
*/
public function until($event, $payload = []);
/**
* Dispatch an event and call the listeners.
*
* @param string|object $event
* @param mixed $payload
* @param bool $halt
* @return array|null
*/
public function dispatch($event, $payload = [], $halt = false);
/**
* Register an event and payload to be fired later.
*
* @param string $event
* @param array $payload
* @return void
*/
public function push($event, $payload = []);
/**
* Flush a set of pushed events.
*
* @param string $event
* @return void
*/
public function flush($event);
/**
* Remove a set of listeners from the dispatcher.
*
* @param string $event
* @return void
*/
public function forget($event);
/**
* Forget all of the queued listeners.
*
* @return void
*/
public function forgetPushed();
}