Pack::getDownloadingParameters

private function getDownloadingParameters(): array
{
	return [
		'fileName' => $this->archiveFileName,
		'filePath' => $this->archiveFilePath,
		'fileType' => $this->packFile ? 'application/tar+gzip' : 'application/tar',
		'fileSize' => $this->archiveFile->getSize(),
	];
}