Allow accessing parent route data from structuredData()

[machour]

Scenario:

On an automotive website, I'm displaying a car in a nested route, so I have the following setup:

occasion/$id.tsx // parent route, loading the car data
occasion/$id/index.tsx // index route, displaying the car data, this is where I want to export my schema
occasion/$id/quote.tsx // to ask for a quotation. I don't want the schema exported here

The current API don't allow me to do this.
A quick & dirty solution would be to provide all matches as a second parameters (useMatches()) to allow the user to get whatever data he needs. I'm sure you'll think of something better.