public function __construct($roomNumber, $price)
 {
     parent::__construct(RoomType::Standard, true, false, 1, ['TV', 'Air-conditioner'], $roomNumber, $price);
 }
 public function __construct($roomNumber, $price)
 {
     parent::__construct(RoomType::Diamond, true, true, 4, ['TV', 'Air-conditioner', 'refrigerator', 'kitchen box', 'mini-bar', 'bathtub', 'free Wi-Fi'], $roomNumber, $price);
 }
 public function __construct($roomNumber, $price)
 {
     parent::__construct(RoomType::Gold, true, true, 2, ['TV', 'Air-conditioner', 'refrigerator', 'mini-bar', 'bathtub'], $roomNumber, $price);
 }