The interface responsible for applying a coupon to a cart.
| Name | Type | Description |
|---|---|---|
| apply | Observable<Partial<T>> | Apply a coupon to the cart and return a partial of the cart. |
| list | Observable<T['coupons']> | List coupon codes applied to a cart. |
| remove | Observable<Partial<T>> | Remove a coupon from the cart and return a partial of the cart. |
| removeAll | Observable<Partial<T>> | Remove all coupons from the cart and return a partial of the cart. |