typescript
1// Good: One facade for shipping operations
2class ShippingFacade {
3  async ship(order: Order): Promise<ShipmentResult> { }
4  async track(trackingNumber: string): Promise<TrackingInfo> { }
5  async estimateDelivery(from: Address, to: Address): Promise<Date> { }
6  async getRates(from: Address, to: Address, weight: number): Promise<Rate[]> { }
7}
8
9// Client only needs to know about ShippingFacade
10const shipping = new ShippingFacade(/* dependencies */);
11const result = await shipping.ship(order);