Nested struct within the parent resource.
Summary
Types
@type t() :: %Stripe.Resources.Checkout.Session.Discounts{ coupon: String.t() | Stripe.Resources.Coupon.t() | nil, promotion_code: String.t() | Stripe.Resources.PromotionCode.t() | nil }
coupon- Coupon attached to the Checkout Session. Nullable.promotion_code- Promotion code attached to the Checkout Session. Nullable.