private function getFileSignature($origin)
    {
        return "<?php " . sprintf(self::blockDirectAccessMSG, get_class($this)) . PHP_EOL . "/*" . PHP_EOL
                        . "[{$origin}] Compiled by PytoTPL Engine (" . date("Y-m-d H:i:s") . ")"
                        . PHP_EOL . "*/"
                        . PHP_EOL . "?>";
    }