public interface IBasketService { void ClearBasket(); } public class BasketService : IBasketService { public void ClearBasket() { // logic to clear the basket } }In this example, we define the interface IBasketService which includes the ClearBasket method. We then implement this interface in a class called BasketService, which defines the logic for clearing the basket. For instance, suppose we have a shopping website that allows customers to add items to their basket. If a customer decides they want to start over and remove all the items from the basket, they can call the ClearBasket method. This will delete all the items from the basket. The IBasketService and ClearBasket method are commonly used in e-commerce applications and can be found in package libraries such as Microsoft.AspNet.WebApi or Microsoft.AspNetCore.Mvc.