t() :: %ExGram.Model.PreCheckoutQuery{
  currency: String.t(),
  from: ExGram.Model.User.t(),
  id: String.t(),
  invoice_payload: String.t(),
  order_info: ExGram.Model.OrderInfo.t() | nil,
  shipping_option_id: String.t() | nil,
  total_amount: integer()
}