/**
  * Filter locale collection.
  *
  * @param  array  $supportedLocales
  *
  * @return \Arcanedev\Localization\Entities\LocaleCollection
  */
 private function filterLocales(array $supportedLocales)
 {
     return $this->locales->filter(function (Locale $locale) use($supportedLocales) {
         return in_array($locale->key(), $supportedLocales);
     });
 }