ezmigrationbundle/API/Collection/MigrationDefinitionCollection.php

<?php

namespace Kaliop\eZMigrationBundle\API\Collection;

/**
 * @todo validate that elements added to this collection are of the supported type!
 * @todo add phpdoc to suggest typehinting
 * @todo sort by key upon creation
 */
class MigrationDefinitionCollection extends \ArrayObject
{
}