Mcamara\LaravelLocalization\LaravelLocalization::getSupportedLanguagesKeys PHP Method

    public function getSupportedLanguagesKeys()
    {
        return array_keys($this->supportedLocales);
    }

 /**
  * Returns supported languages language key
  *
  * @return array keys of supported languages
  * @static 
  */
 public static function getSupportedLanguagesKeys()
 {
     return \Mcamara\LaravelLocalization\LaravelLocalization::getSupportedLanguagesKeys();
 }