code: public function renderLanguageSwitcher()
      {
          return $this->_View->element($this->config('element'), [
              'availableLanguages' => $this->config('availableLanguages'),
              'displayNames' => $this->config('displayNames'),
              'imageMapping' => $this->config('imageMapping'),
              'renderToggleButtonDisplayName' => $this->config('renderToggleButtonDisplayName')
          ]);
      }
docs: Renders language switcher dropdown
  
  @return element