如何在SwiftUI中为PreviewProvider绑定字典？

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
            .environmentObject(MyDictionary())
    }
}

class MyDictionary: ObservableObject {
    @Published var dictionary: [String: Any] = [
        "key1": "value1",
        "key2": 2,
        "key3": true
    ]
}

struct ContentView: View {
    @EnvironmentObject var myDictionary: MyDictionary
    
    var body: some View {
        // 使用myDictionary.dictionary进行操作
        Text("\(myDictionary.dictionary["key1"] ?? "")")
    }
}

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
    let contentView = ContentView()
        .environmentObject(MyDictionary())
    
    // 其他代码...
}