Services.php sample

    public static function userRegistrationService($getShared = true)
    {
        if ($getShared) {
            return static::getSharedInstance('userRegistrationService');
        }

        $encrypt = service('encrypt');
        $userService = UserServiceFactory::createForUserRegistration();
            $profileService = ProfileServiceFactory::createForUserRegistration($userService);
            $accessLevelService = service('accessLevelService');
            $sessionService = service('sessionService');
            $validationService = service('validationService');

        return new UserRegistrationService($encrypt, $userService, $profileService, $accessLevelService, $sessionService, $validationService);
    }