public function __construct(EntityManager $em, RewardsEngineInterface $rewardsEngine, $debug = false)
 {
     parent::__construct($em, $rewardsEngine, $debug);
 }
 public function __construct($em, $rewardsEngine, $debug = false)
 {
     parent::__construct($em, $rewardsEngine, $debug);
     $this->em = $em;
 }