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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Hooks;
/**
* Class Emitter
*
* interface for all classes that are able to emit events
*
* @package OC\Hooks
*/
interface Emitter {
/**
* @param string $scope
* @param string $method
* @param callable $callback
* @return void
*/
public function listen($scope, $method, callable $callback);
/**
* @param string $scope optional
* @param string $method optional
* @param callable $callback optional
* @return void
*/
public function removeListener($scope = null, $method = null, callable $callback = null);
}
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