如何在SwiftUI中限制FetchRequest中的结果数

import SwiftUI
import CoreData

struct ContentView: View {
    @Environment(\.managedObjectContext) private var viewContext
    @FetchRequest(
        sortDescriptors: [NSSortDescriptor(keyPath: \Item.timestamp, ascending: true)],
        predicate: NSPredicate(format: "TRUEPREDICATE"),
        animation: .default)
    private var items: FetchedResults<Item>

    var body: some View {
        List {
            ForEach(items.prefix(10)) { item in
                Text(item.name ?? "")
            }
        }
        .onDelete(perform: deleteItems)
    }

    private func deleteItems(offsets: IndexSet) {
        withAnimation {
            offsets.map { items[$0] }.forEach(viewContext.delete)
            do {
                try viewContext.save()
            } catch {
                let nsError = error as NSError
                fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
            }
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView().environment(\.managedObjectContext, PersistenceController.preview.container.viewContext)
    }
}

@FetchRequest(
    entity: Item.entity(),
    sortDescriptors: [NSSortDescriptor(keyPath: \Item.timestamp, ascending: true)],
    predicate: NSPredicate(format: "TRUEPREDICATE"),
    fetchLimit: 10,
    animation: .default)
private var items: FetchedResults<Item>