TestServiceSubscriber example

'Symfony\\Component\\DependencyInjection\\Tests\\Fixtures\\CustomDefinition' => true,
        ];
    }

    /** * Gets the public 'Symfony\Component\DependencyInjection\Tests\Fixtures\TestServiceSubscriber' shared service. * * @return \Symfony\Component\DependencyInjection\Tests\Fixtures\TestServiceSubscriber */
    protected static function getTestServiceSubscriberService($container)
    {
        return $container->services['Symfony\\Component\\DependencyInjection\\Tests\\Fixtures\\TestServiceSubscriber'] = new \Symfony\Component\DependencyInjection\Tests\Fixtures\TestServiceSubscriber();
    }

    /** * Gets the public 'foo_service' shared autowired service. * * @return \Symfony\Component\DependencyInjection\Tests\Fixtures\TestServiceSubscriber */
    protected static function getFooServiceService($container)
    {
        return $container->services['foo_service'] = new \Symfony\Component\DependencyInjection\Tests\Fixtures\TestServiceSubscriber((new \Symfony\Component\DependencyInjection\Argument\ServiceLocator($container->getService ??= $container->getService(...), [
            'Symfony\\Component\\DependencyInjection\\Tests\\Fixtures\\CustomDefinition' => ['privates', 'Symfony\\Component\\DependencyInjection\\Tests\\Fixtures\\CustomDefinition', 'getCustomDefinitionService', false],