How to create multiple previews of cells based on test data in SwiftUI with a foreach

I am trying to display multiple previews of the card view (Apple's SwiftUI tutorial). I managed to do it manually using the Group struct.

struct CardView_Previews: PreviewProvider {
    
    static var previews: some View {
        Group {
            CardView(scrum: DailyScrum.data[0])
                .background(DailyScrum.data[0].color)
            CardView(scrum: DailyScrum.data[1])
                .background(DailyScrum.data[1].color)
        }.previewLayout(.fixed(width: 400, height: 60))
    }
}

I would like to automate the display of four cells based on test data with a ForEach, but the following fails to build and the compiler fails to produce a diagnostic for the expression.

struct CardView_Previews: PreviewProvider {
    
    static var previews: some View {
        Group {
            ForEach(DailyScrum.data) { scrum in
                CardView(scrum: scrum)
                    .background(scrum.color)
            }
        }.previewLayout(.fixed(width: 400, height: 60))   
    }   
}

Is there a way to construct the previews without explicitly creating each preview ?

I found the workaround I was looking for by simply adding the id argument to the ForEach initializer. It prevents from having to add Identifiable conformance to the type :

struct CardView_Previews: PreviewProvider {
    
    static var previews: some View {
        Group {
            ForEach(DailyScrum.data, id: \.title) { scrum in
                CardView(scrum: scrum)
                    .background(scrum.color)
            }
        }.previewLayout(.fixed(width: 400, height: 60))
        
    }
    
}