public function registerParameters(ContainerBuilder $container, array $config)
{
$container->setParameter('sonata.customer.customer.class', $config['class']['customer']);
$container->setParameter('sonata.customer.address.class', $config['class']['address']);
$container->setParameter('sonata.customer.selector.class', $config['class']['customer_selector']);
$container->setParameter('sonata.customer.admin.customer.entity', $config['class']['customer']);
$container->setParameter('sonata.customer.admin.address.entity', $config['class']['address']);
}