如何在MacOS的SwiftUI中向TextFields添加建议(参见下面的gif )？

import SwiftUI
import AppKit

struct ComboBox: NSViewRepresentable {
    @Binding var selectedValue: String
    var suggestions: [String]

    func makeNSView(context: Context) -> NSComboBox {
        let comboBox = NSComboBox()
        comboBox.delegate = context.coordinator
        comboBox.isEditable = true
        comboBox.addItems(withObjectValues: suggestions)
        return comboBox
    }

    func updateNSView(_ nsView: NSComboBox, context: Context) {
        nsView.stringValue = selectedValue
    }

    func makeCoordinator() -> Coordinator {
        Coordinator(self)
    }

    class Coordinator: NSObject, NSComboBoxDelegate {
        let parent: ComboBox

        init(_ comboBox: ComboBox) {
            parent = comboBox
        }

        func comboBoxSelectionDidChange(_ notification: Notification) {
            if let comboBox = notification.object as? NSComboBox {
                parent.selectedValue = comboBox.stringValue
            }
        }
    }
}

struct ContentView: View {
    @State private var suggestion: String = ""
    let suggestions = ["Apple", "Banana", "Orange"]

    var body: some View {
        VStack {
            ComboBox(selectedValue: $suggestion, suggestions: suggestions)
                .frame(width: 200, height: 30)
                .padding()

            TextField("Enter text", text: $suggestion)
                .textFieldStyle(RoundedBorderTextFieldStyle())
                .padding()
        }
    }
}