Preview SwiftUI code in Playground on different devices

XCode with can preview SwiftUI code on Canvas for many environments and devices with the help of PreviewProvider. Like this:

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        Group {
            ContentView()
            .environment((\.horizontalSizeClass), .compact)
            ContentView()
             .previewDevice(PreviewDevice(stringLiteral: "iPad8,5"))
             .environment((\.horizontalSizeClass), .regular)
        }
    }
}

How can we do the same in Playground? The following .previewDevice() modifier has no effect in Playground (XCode 12.0.1).

PlaygroundPage.current.setLiveView(ContentView().previewDevice(PreviewDevice(stringLiteral: "iPhone 7")))

Maybe it can be done somehow with PlaygroundPage.current.liveView or else?