invoiceitem

record invoiceitem {
  amount: s32,
  currency: string,
  customer: string,
  date: s32,
  description: option​<string>,
  discountable: bool,
  discounts: option​<list​<string>>,
  id: string,
  invoice: option​<string>,
  livemode: bool,
  metadata: option​<invoiceitem-metadata>,
  object: invoiceitem-object-enum,
  period: invoice-line-item-period,
  price: option​<string>,
  proration: bool,
  quantity: s32,
  subscription: option​<string>,
  subscription-item: option​<string>,
  tax-rates: option​<list​<tax-rate>>,
  test-clock: option​<string>,
  unit-amount: option​<s32>,
  unit-amount-decimal: option​<string>,
}