/**
  * {@inheritDoc}
  */
 protected function doLoad(ObjectManager $manager)
 {
     $c1 = new AuContainer();
     $c1->setOpen(false);
     $this->setReference('aucontainer', $c1);
     $manager->persist($c1);
     $c2 = new AuContainer();
     $manager->persist($c2);
     $c3 = new AuContainer();
     $manager->persist($c3);
     $manager->flush();
 }