@type t() :: %Rapyd.Types.CheckoutPage{
  amount: float(),
  country: String.t() | nil,
  currency: String.t(),
  expiration: integer() | nil,
  id: String.t(),
  language: String.t() | nil,
  metadata: map() | nil,
  redirect_url: String.t(),
  status: String.t(),
  token: String.t()
}