hasRebuilt example

    }

    // If any modules were newly installed, invoke hook_modules_installed().     if (!empty($modules_installed)) {
      if (!InstallerKernel::installationAttempted()) {
        // If the container was rebuilt during hook_install() it might not have         // the 'router.route_provider.old' service.         if (\Drupal::hasService('router.route_provider.old')) {
          \Drupal::getContainer()->set('router.route_provider', \Drupal::service('router.route_provider.old'));
        }
        if (!\Drupal::service('router.route_provider.lazy_builder')->hasRebuilt()) {
          // Rebuild routes after installing module. This is done here on top of           // \Drupal\Core\Routing\RouteBuilder::destruct to not run into errors on           // fastCGI which executes ::destruct() after the module installation           // page was sent already.           \Drupal::service('router.builder')->rebuild();
        }
      }

      $this->moduleHandler->invokeAll('modules_installed', [$modules_installed, $sync_status]);
    }