set(self::SNAPSHOT_ID, $_id); } public function getSnapshotId():int { return (int) $this->get(self::SNAPSHOT_ID, 0); } public function setDownloadId(int $_id):void { $this->set(self::DOWNLOAD_ID, $_id); } public function getDownloadId():int { return (int) $this->get(self::DOWNLOAD_ID, 0); } public function getDisplay():array { return [ self::SNAPSHOT_ID => $this->getSnapshotId(), self::DOWNLOAD_ID => $this->getDownloadId(), ]; } }