public function borrarId()
 {
     session_start();
     if (isset($_GET["id_laboratorios"])) {
         $id_laboratorios = (int) $_GET["id_laboratorios"];
         $laboratorios = new LaboratoriosModel();
         $laboratorios->deleteBy(" id_laboratorios", $id_laboratorios);
     }
     $this->redirect("Laboratorios", "index");
 }