show intro/trial line item when checking out

How do I show this free trial when checking out?

I have setup my App Store Connect API & In App purchase key config to RevenueCat.

When checking the data shape of `Purchases.getOfferings()` using JS/ReactNative API, my annual offer seems to have it there as part of the `introPrice`:

annual: {
        offeringIdentifier: 'default',
        product: {
          priceString: '$49.99',
          currencyCode: 'USD',
          description: 'Access all content',
          productType: 'NON_CONSUMABLE',
          discounts: [],
          productCategory: 'SUBSCRIPTION',
          subscriptionPeriod: 'P1Y',
          price: 49.989999999999995,
          identifier: 'ios_annual_4999_default',
          title: 'Annual Subscription',
          introPrice: {
            periodUnit: 'DAY',
            periodNumberOfUnits: 3,
            period: 'P3D',
            priceString: '$0.00',
            price: 0,
            cycles: 1,
          },
        },
        packageType: 'ANNUAL',
        identifier: '$rc_annual',
      },

But when I checkout, all I see is the root price of 4999.