class ServiceProviderTestServiceProvider

class ServiceProviderTestServiceProvider implements ServiceModifierInterface {
    
    /**
     * {@inheritdoc}
     */
    public function alter(ContainerBuilder $container) {
        if ($container->has('file.usage')) {
            // Override the class used for the file.usage service.
            $definition = $container->getDefinition('file.usage');
            $definition->setClass('Drupal\\service_provider_test\\TestFileUsage');
        }
        // Make sure a cached service can be also called in a service provider.
        // https://www.drupal.org/project/drupal/issues/2363351
        
        /** @var \Drupal\Core\Extension\ModuleHandlerInterface $module_handler */
        $module_handler = $container->get('module_handler');
        try {
            $this_module_relative_path = $module_handler->getModule('service_provider_test')
                ->getPath();
            $container->setParameter('service_provider_test_path', $this_module_relative_path);
        } catch (\Exception $e) {
            throw new \LogicException('Unable to identify installation path of this module.');
        }
        if ($indicator = Settings::get('deployment_identifier')) {
            $container->setParameter('container_rebuild_indicator', $indicator);
        }
        if ($parameter = Settings::get('container_rebuild_test_parameter')) {
            $container->setParameter('container_rebuild_test_parameter', $parameter);
        }
    }

}