test Product...
$product->is_gurentee = $request->is_gurentee ?? 0;
$product->garrentee_days = $request->is_gurentee ? $request->garrentee_days : null;
$product->is_warrenty = $request->is_warrenty ?? 0;
$product->warrenty_days = $request->is_warrenty ? $request->warrenty_days : null;
