Using SwiftUI ImageRenderer in view modifier-like view extension

ImageRendererModifier.swift

import SwiftUI

struct ContentView: View {
    var body: some View {
        Text("Hello WWDC22")
            .rendered(scale: 2)
    }
}

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

extension View {
    @MainActor func rendered(scale: CGFloat = 1) -> some View {
        return RenderedView(content: self, scale: scale)
    }
}

@MainActor struct RenderedView<Content: View>: View {
    let render: () -> UIImage?
    
    init(content: Content, scale: CGFloat) {
        let renderer = ImageRenderer(content: content)
        renderer.scale = scale
        self.render = { renderer.uiImage }
    }
    
    var body: some View {
        render().map(Image.init(uiImage:))
    }
}