/**
  * @return array|null
  */
 protected function getSettings()
 {
     if ($this->client instanceof Client) {
         $settings = Arrays::getValueByPath($this->settings, 'indexes.' . $this->client->getBundle() . '.' . $this->settingsKey) ?: Arrays::getValueByPath($this->settings, 'indexes.default' . '.' . $this->settingsKey);
     } else {
         $settings = Arrays::getValueByPath($this->settings, 'indexes.default' . '.' . $this->settingsKey);
     }
     return $settings;
 }