How to handle touch event when use SwiftUI & SpriteView on watchOS 8

I want to learning make a sample game on Apple Watch which install watchOS 8.

I use SwiftUI to wrap the SpriteView for displaying the game scene. All work fine except handling the touch event. When I override the function " touchesEnded " in GameScene, it report error for no such function on watchOS.

How to handle the tap event on watchOS ? Any suggestion is welcome, thank you.

struct ContentView: View {

    var sz = WKInterfaceDevice.current().screenBounds.size

    var scene: SKScene {

        let scene = GameScene()

        scene.size = sz

        scene.scaleMode = .resizeFill

        return scene

    }

    

    var body: some View {

        SpriteView(scene: scene)

            .frame(width: sz.width, height: sz.height)

            .ignoresSafeArea()

    }

}

class GameScene: SKScene {
    override func sceneDidLoad() {

        print("sceneDidLoad size=\(size.width),\(size.height)")

        myInit()

    }

  override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
 // build error for no touchesEnded func on watchOS
}
}