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<?php
/*
* This file is part of SwiftMailer.
* (c) 2004-2009 Chris Corbyn
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Allows StreamFilters to operate on a stream.
*
* @author Chris Corbyn
*/
interface Swift_Filterable
{
/**
* Add a new StreamFilter, referenced by $key.
*
* @param Swift_StreamFilter $filter
* @param string $key
*/
public function addFilter(Swift_StreamFilter $filter, $key);
/**
* Remove an existing filter using $key.
*
* @param string $key
*/
public function removeFilter($key);
}
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