Config::needToBackUpFiles

static function needToBackUpFiles(): bool
{
	static $needToBackUpFiles;
	if ($needToBackUpFiles === null)
	{
		$def = self::getModuleDefault(self::OPTION_BACKUP_FILES);
		$needToBackUpFiles = (bool)(MainConfigOption::get('translate', self::OPTION_BACKUP_FILES, $def) === 'Y');
	}

	return $needToBackUpFiles;
}