manager-bundle/src/ContaoManager/Plugin.php
public function registerContainerConfiguration(LoaderInterface $loader, array $managerConfig): void
    {
        $loader->load(
            static function (ContainerBuilder $container) use ($loader): void {
                if ('dev' === $container->getParameter('kernel.environment')) {
                    $loader->load('@ContaoManagerBundle/Resources/skeleton/app/config_dev.yml');
                } else {
                    $loader->load('@ContaoManagerBundle/Resources/skeleton/app/config_prod.yml');
                }

                $container->setParameter('container.autowiring.strict_mode', true);
                $container->setParameter('container.dumper.inline_class_loader', true);
            }
        );
    }
public function registerContainerConfiguration(LoaderInterface $loader, array $managerConfig): void
    {
        $loader->load(
            static function (ContainerBuilder $container) use ($loader): void {
                if ('dev' === $container->getParameter('kernel.environment')) {
                    $loader->load('@ContaoManagerBundle/Resources/skeleton/app/config_dev.yml');
                } else {
                    $loader->load('@ContaoManagerBundle/Resources/skeleton/app/config_prod.yml');
                }

                $container->setParameter('container.autowiring.strict_mode', true);
                $container->setParameter('container.dumper.inline_class_loader', true);
            }
        );
    }
{@inheritdoc}