type: object description: The additional item's additional items. x-schemaName: BaseExchangeItem required: - id - exchange_id - order_id - item_id - quantity - created_at - updated_at properties: id: type: string title: id description: The additional item's ID. exchange_id: type: string title: exchange_id description: The additional item's exchange id. order_id: type: string title: order_id description: The additional item's order id. item_id: type: string title: item_id description: The additional item's item id. quantity: type: number title: quantity description: The additional item's quantity. metadata: type: object description: The additional item's metadata. created_at: type: string format: date-time title: created_at description: The additional item's created at. updated_at: type: string format: date-time title: updated_at description: The additional item's updated at.