ISO currency code, in lowercase. Must be a supported currency. * @property null|string $description An arbitrary string attached to the object. Often useful for displaying to users. * @property bool $discountable If true, discounts will apply to this line item. Always false for prorations. * @property string $invoice_item The ID of the invoice item associated with this line item if any. * @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 \Stripe\StripeObject $metadata Set of key-value pairs that you can attach to an object. This can be useful for storing additional information about the object in a structured format. Note that for line items with type=subscription this will reflect the metadata of the subscription that caused the line item to be created. * @property \Stripe\StripeObject $period * @property null|\Stripe\Plan $plan The plan of the subscription, if the line item is a subscription or a proration. * @property null|\Stripe\Price $price The price of the line item. * @property bool $proration Whether this is a proration. * @property null|int $quantity The quantity of the subscription, if the line item is a subscription or a proration. * @property null|string $subscription The subscription that the invoice item pertains to, if any. * @property string $subscription_item The subscription item that generated this invoice item. Left empty if the line item is not an explicit result of a subscription. * @property null|\Stripe\StripeObject[] $tax_amounts The amount of tax calculated per tax rate for this line item * @property null|\Stripe\TaxRate[] $tax_rates The tax rates which apply to the line item. * @property string $type A string identifying the type of the source of this line item, either an invoiceitem or a subscription. * @property bool $unified_proration For prorations this indicates whether Stripe automatically grouped multiple related debit and credit line items into a single combined line item. */ class InvoiceLineItem extends ApiResource { const OBJECT_NAME = 'line_item'; }