t() :: %AdyenCheckoutEx.Model.CheckoutVoucherAction{
  alternativeReference: String.t() | nil,
  collectionInstitutionNumber: String.t() | nil,
  downloadUrl: String.t() | nil,
  entity: String.t() | nil,
  expiresAt: String.t() | nil,
  initialAmount: AdyenCheckoutEx.Model.Amount.t() | nil,
  instructionsUrl: String.t() | nil,
  issuer: String.t() | nil,
  maskedTelephoneNumber: String.t() | nil,
  merchantName: String.t() | nil,
  merchantReference: String.t() | nil,
  paymentData: String.t() | nil,
  paymentMethodType: String.t() | nil,
  reference: String.t() | nil,
  shopperEmail: String.t() | nil,
  shopperName: String.t() | nil,
  surcharge: AdyenCheckoutEx.Model.Amount.t() | nil,
  totalAmount: AdyenCheckoutEx.Model.Amount.t() | nil,
  type: String.t(),
  url: String.t() | nil
}