如何使用 redacted() 将内容标记为占位符？

Text("This is placeholder text")
    .font(.title)
    .redacted(reason: .placeholder)

VStack {
    Text("This is placeholder text")
    Text("And so is this")
}
.font(.title)    
.redacted(reason: .placeholder)

struct ContentView: View {
    @Environment(\.redactionReasons) var redactionReasons
    let bio = "The rain in Spain falls mainly on the Spaniards"

    var body: some View {
        if redactionReasons == .placeholder {
            Text("Loading…")
        } else {
            Text(bio)
                .redacted(reason: redactionReasons)
        }
    }
}