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<?php declare(strict_types=1);
/**
* @copyright Copyright (c) 2019 Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCP\Preview;
/**
* Marks files that should keep multiple preview "versions" for the same file id
*
* Examples of this are files where the storage backend provides versioning, for those
* files, we dont have fileids for the different versions but still need to be able to generate
* previews for all versions
*
* @since 17.0.0
*/
interface IVersionedPreviewFile {
/**
* @return string
* @since 17.0.0
*/
public function getPreviewVersion(): string;
}
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