Predavanie parametrov a zavislosti v neone pre services

Viete mi poradit ako predam parameter v neone pre services? Vracia mi to:
php: 5.3.13
nette: 2.1-dev
https://github.com/…7c9112366790

Service 'nsmailer': Parameter $templateThemeDir in NsMailer::__construct() has no type hint, so its value must be specified.

neon:

common:
    parameters:
        theme:
            templateThemeDir: 'myTheme'
        smtp:
            smtp: true
            host: 'smtp-...'
            username: 'admin@...'
            password: '.....'
            secure: 'ssl'
    nette:
        mailer: %smtp%
    services:
        NsMailer:
            class: NsMailer(%theme.templateThemeDir%)

class NsMailer extends Nette\Object {

   private $mailer;
   private $templateThemeDir;

    public function __construct($templateThemeDir, \Nette\Mail\SmtpMailer $mailer) {
        $this->mailer = $mailer;
        $this->templateThemeDir = $tmplateThemeDir;
    }
}