Optionalcurrency?: stringOptionallineItems?: ThrottleCompletedLineItem[]OptionalpaymentStatus?: stringOptionalsubscriptionId?: stringOptionalsubscriptionIds?: string[]Optionaltotal?: numberv1.4 additive — order total in minor units, for analytics purchase events.
v1.5 additive — every subscription the checkout created, in line order.
subscriptionIdis set only when there is exactly one.