t() :: %ReceiptVerifier.IAPReceipt{
  cancellation_date: DateTime.t(),
  cancellation_reason: integer(),
  expires_date: DateTime.t(),
  in_app_ownership_type: String.t(),
  is_in_intro_offer_period: boolean(),
  is_trial_period: boolean(),
  is_upgraded: boolean(),
  offer_code_ref_name: String.t(),
  original_purchase_date: DateTime.t(),
  original_transaction_id: String.t(),
  product_id: String.t(),
  promotional_offer_id: String.t(),
  purchase_date: DateTime.t(),
  quantity: integer(),
  subscription_group_identifier: String.t(),
  transaction_id: String.t(),
  web_order_line_item_id: String.t()
}