buildRenderingLanguageOptions example

    }

    $options['query'] = [
      'category' => 'other',
      'title' => $this->t('Query settings'),
      'value' => $this->t('Settings'),
      'desc' => $this->t('Allow to set some advanced settings for the query plugin'),
    ];

    if (\Drupal::languageManager()->isMultilingual() && $this->isBaseTableTranslatable()) {
      $rendering_language_options = $this->buildRenderingLanguageOptions();
      $options['rendering_language'] = [
        'category' => 'language',
        'title' => $this->t('Rendering Language'),
        'value' => $rendering_language_options[$this->getOption('rendering_language')],
        'desc' => $this->t('All content that supports translations will be displayed in the selected language.'),
      ];
    }

    $access_plugin = $this->getPlugin('access');
    if (!$access_plugin) {
      // Default to the no access control plugin.