private function importNewsletterDemoData()
{
$this->modelManager = Shopware()->Container()->get('models');
$newsletterGroup = $this->modelManager->find(Group::class, 1);
for ($addressAmount = 0; $addressAmount < 25; $addressAmount++) {
$address = new Address();
$address->setEmail('test_' . $addressAmount . '@example.com');
$address->setAdded(new \DateTime());
$address->setNewsletterGroup($newsletterGroup);
$address->setIsCustomer(false);
$this->modelManager->persist($address);
}
$this->modelManager->flush();
}
