I would like to learn the best practice of supporting SwiftData in an app running on minimum iOS16.

The basic main app code:

import SwiftUI

@main
struct TestApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}

I have a basic Person class with name and email address properties. Since SwiftData is not supported on iOS 16, the below does not work:

import SwiftUI
import SwiftData

@main
struct TestApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
        .modelContainer(for: Person.self)
    }
}

Using if #available(iOS 17, *) is wrong because control flow statements cannot be used in a SceneBuilder.

How do I go about attaching a model container to the WindowGroup while maintaining support to iOS16 at the same time?