Symfony\Component\DependencyInjection\ContainerBuilder::addAliases PHP Method

    public function addAliases(array $aliases)
    {
        foreach ($aliases as $alias => $id) {
            $this->setAlias($alias, $id);
        }
    }

 /**
  * {@inheritdoc}
  */
 public function process(ContainerBuilder $container)
 {
     $config = $container->getParameter(ModeraActivityLoggerExtension::CONFIG_KEY);
     $aliasConfig = array();
     // alias : id
     $aliasConfig['modera_activity_logger.manager.activity_manager'] = $config['activity_manager'];
     $container->addAliases($aliasConfig);
 }