is there away to get google in-app order details?

using PHP im trying to get details about a specific purchase

$service = new Google_Service_AndroidPublisher( $client );
$googleApiResult = $service->purchases_products->get($packageName, $product_id, $token);

the only details i'm getting are the state of the purchase (purchaseState) consumption state (consumptionState). What i need is more details like

1. the currency the user bought with


2. the price he paid.