Metered * Billing. * * @property string $id Unique identifier for the object. * @property string $object String representing the object's type. Objects of the same type share the same value. * @property bool $livemode Has the value true if the object exists in live mode or the value false if the object exists in test mode. * @property int $quantity The usage quantity for the specified date. * @property string $subscription_item The ID of the subscription item this usage record contains data for. * @property int $timestamp The timestamp when this usage occurred. */ class UsageRecord extends ApiResource { const OBJECT_NAME = 'usage_record'; }