code: protected function loadInternal(array $config, ContainerBuilder $container)
      {
          $locator = new FileLocator(__DIR__.'/../Resources/config');
          $loader = new PhpFileLoader($container, $locator);
          $loader->load('services.php');
  
          $container->registerForAutoconfiguration(LoaderInterface::class)
              ->setPrivate(true)
              ->addTag('ruwork_runet_id.basket_loader');
  
          $container->registerForAutoconfiguration(HandlerInterface::class)
              ->setPrivate(true)
              ->addTag('ruwork_runet_id.basket_handler');
  
          $clientReferences = [];
  
          foreach ($config['clients'] as $name => $clientConfig) {
              $clientReferences[$name] = $this->registerClient($container, $name, $clientConfig);
          }
  
          $clientAlias = new Alias('ruwork_runet_id.client.'.$config['default_client'], false);
          $container->setAlias(RunetIdClient::class, $clientAlias);
          $container->setAlias('ruwork_runet_id.client._default', $clientAlias);
  
          if (class_exists(HWIOAuthBundle::class)) {
              foreach ($clientReferences as $name => $reference) {
                  $container
                      ->register('ruwork_runet_id.oauth.'.$name, ResourceOwner::class)
                      ->setPublic(false)
                      ->setArgument('$client', $reference);
              }
  
              $oauthAlias = new Alias('ruwork_runet_id.oauth.'.$config['default_client'], false);
              $container->setAlias('ruwork_runet_id.oauth._default', $oauthAlias);
          }
  
          $container
              ->findDefinition(RunetIdClients::class)
              ->setArguments([
                  '$container' => ServiceLocatorTagPass::register($container, $clientReferences),
                  '$defaultName' => $config['default_client'],
              ]);
  
          if (!class_exists(Validation::class)) {
              $container->removeDefinition('ruwork_runet_id.validator.unique_email');
          }
      }
docs: {@inheritdoc}