transaction

record transaction {
  created: s32,
  currency: string,
  customer: option​<string>,
  customer-details: product-resource-customer-details,
  id: string,
  line-items: option​<transaction-line-items>,
  livemode: bool,
  metadata: option​<transaction-metadata>,
  object: transaction-object-enum,
  reference: string,
  reversal: option​<string>,
  shipping-cost: option​<string>,
  tax-date: s32,
  type-op: transaction-line-item-type-op-enum,
}