Předání závislého interface

Ahoj,

chtěl jsem si vytvořit obecnější odesílač emailu.

Mám třídy a interface:

<?php
namespace App\Model\Mails;

class MailTemplateFactory extends \Nette\Object {
    const DEFAULT_FROM = "test@test.cz";

    private $template;

    public function __construct(IMailTemplate $template) {

        $this->template = $template;
    }

    public function getMailTemplate($subject, $body, $to, $from = self::DEFAULT_FROM) {
        return $this->template->getMailTemplate($subject, $body, $to,
                $from);
    }
}
?>

<?php
namespace App\Model\Mails;

interface IMailTemplate {
    public function getMailTemplate($subject, $body, $to, $from);
}
?>

<?php
class NetteMailTemplate implements IMailTemplate {
    private $template;

    public function __construct() {
        $this->template = new \Nette\Mail\Message();
    }

    public function getMailTemplate($subject, $body, $to, $from) {
        $this->template = new \Nette\Mail\Message();
        $this->template->setFrom($from);
        $this->template->setBody($body);
        $this->template->setSubject($subject);
        $this->template->addTo($to);

        return $this->template;
    }
}
?>

<?php
namespace App\Model\Mails;

use Nette;

class MailSenderFactory extends Nette\Object {
    private $mailSender;

    public function __construct(IMailSender $mailSender) {
        $this->mailSender = $mailSender;
    }

    public function send(IMailTemplate $template) {
        $this->mailSender->send($template);
    }
}

?>

<?php
namespace App\Model\Mails;

interface IMailSender {
    function send(IMailTemplate $template);
}

?>

<?php
class NetteMailSender implements IMailSender {

    public function __construct() {
    }

    public function send(IMailTemplate $template) {
        $mailSender = new Nette\Mail\SendmailMailer();
        $mailSender->send($template);
    }

}
?>

Pak si v konstruktoru předávám závislosti na továrničky.

<?php
public function __construct(Nette\Database\Context $database,
            Mails\MailTemplateFactory $mailTemplateFactory, Mails\MailSenderFactory $mailSenderFactory) {
?>

A v neonu mám:

<?php
services:
	- App\Model\UserManager
	- App\RouterFactory
	- App\Model\Documents
	- App\Model\FileFeeder
	- App\Model\Users
	- App\Model\Mails\MailSenderFactory
	- App\Model\Mails\MailTemplateFactory
	- App\Model\Mails\IMailSender
	- App\Model\Mails\IMailTemplate
?>

Takhle mi to po spuštění zahlásí:
Interface App\Model\Mails\IMailSender used in service ‚61_App_Model_Mails_IMailSender‘ must have just one non-static method create() or get().

A pokud smažu poslední 2 řádky v neonu, tak mi to hlásí:
Service ‚61_App_Model_Mails_MailSenderFactory‘: No service of type App\Model\Mails\IMailSender found. Make sure the type hint in App\Model\Mails\MailSenderFactory::__construct() is written correctly and service of this type is registered

Mohl by mi někdo poradit, jak na to?
Budu rád za každou radu nebo kritiku.

Díky.