eventmanagerinterface.php

См. документацию.

<?php
 
namespace Bitrix\Calendar\Internals\EventManager;
 
use Bitrix\Main\Event;
 
interface EventManagerInterface
{
    public function addEventHandler($fromModuleId, $eventType, $callback, $includeFile = false, $sort = 100);
    public function send(Event $event): void;
}