language_negotiation_url_prefixes_update example

public function postSave(EntityStorageInterface $storage, $update = TRUE) {
    parent::postSave($storage, $update);

    $language_manager = \Drupal::languageManager();
    $language_manager->reset();
    if (!$this->isLocked() && $language_manager instanceof ConfigurableLanguageManagerInterface && !$this->isSyncing()) {
      $language_manager->updateLockedLanguageWeights();
    }

    // Update URL Prefixes for all languages after the     // LanguageManagerInterface::getLanguages() cache is flushed.     language_negotiation_url_prefixes_update();

    // If after adding this language the site will become multilingual, we need     // to rebuild language services.     if (!$this->preSaveMultilingual && !$update && $language_manager instanceof ConfigurableLanguageManagerInterface) {
      $language_manager::rebuildServices();
    }
    if (!$update) {
      // Install any available language configuration overrides for the language.       \Drupal::service('language.config_factory_override')->installLanguageOverrides($this->id());
    }