findAll(); } public function getAllStudent():array { $gtw = new UserGateway(); return $gtw->findAll(); } public function getVocabByName(string $name):array{ $gtw = new VocabularyGateway(); $res = $gtw->findByName($name); return $res; } public function RemoveVocById(int $id):void{ $gtw = new VocabularyGateway(); $res = $gtw->remove($id); } public function is() { // TODO: Implement is() method. } }