mediawiki-extensions-Echo/includes/Bundleable.php

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<?php
/**
* Interface Bundleable
*
* Indicates that an object can be bundled.
*/
interface Bundleable {
/**
* @return boolean Whether this object can be bundled.
*/
public function canBeBundled();
/**
* @return string objects with the same bundling key can be bundled together
*/
public function getBundlingKey();
/**
* @param Bundleable[] $bundleables other object that have been bundled with this one
*/
public function setBundledElements( $bundleables );
/**
* @return mixed the key by which this object should be sorted during the bundling process
*/
public function getSortingKey();
}