@type t() :: %Travel.Flights.Types.OrderCancellation{
  airline_credits:
    [Travel.Flights.Types.OrderCancellationAirlineCredit.t()] | nil,
  confirmed_at: (String.t() | nil) | nil,
  created_at: String.t() | nil,
  expires_at: (String.t() | nil) | nil,
  id: String.t() | nil,
  live_mode: boolean() | nil,
  order_id: String.t() | nil,
  refund_amount: (String.t() | nil) | nil,
  refund_currency: (String.t() | nil) | nil,
  refund_to: (atom() | nil) | nil
}