@type t() :: %Travel.Flights.Types.OfferRequestPassenger{
  age: (integer() | nil) | nil,
  family_name: (String.t() | nil) | nil,
  given_name: (String.t() | nil) | nil,
  id: String.t() | nil,
  loyalty_programme_accounts: ([map()] | nil) | nil,
  type: atom() | nil
}