---
title: "subscript(dynamicMember:)"
framework: storekit
role: symbol
role_heading: Instance Subscript
path: "storekit/subscriptionstorecontrolstyleconfiguration/option/subscript(dynamicmember:)-9g2sm"
---

# subscript(dynamicMember:)

Facilitates accessing product properties on an option value.

## Declaration

```swift
subscript<T>(dynamicMember keyPath: KeyPath<Product, T>) -> T { get }
```

## Discussion

Discussion You don’t use this subscript directly. Instead, access the properties of a Product instance directly on a SubscriptionStoreControlStyleConfiguration.Option value. For an example of using a dynamic member lookup, see SubscriptionStoreControlStyleConfiguration.Option.

## See Also

### Looking up dynamic members

- [subscript(dynamicMember:)](storekit/subscriptionstorecontrolstyleconfiguration/option/subscript(dynamicmember:)-8sl2m.md)
- [subscript(dynamicMember:)](storekit/subscriptionstorecontrolstyleconfiguration/option/subscript(dynamicmember:)-wjww.md)