如何在Swift UI SpriteView中打开showPhysics？

import SwiftUI
import SpriteKit

struct ContentView: View {
    var body: some View {
        VStack {
            SpriteView(scene: createScene())
                .frame(width: 300, height: 300)
        }
    }
    
    func createScene() -> SKScene {
        let scene = SKScene(size: CGSize(width: 300, height: 300))
        scene.physicsWorld.gravity = CGVector(dx: 0, dy: -9.8)
        
        let physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: 100, height: 100))
        physicsBody.isDynamic = true
        physicsBody.affectedByGravity = true
        
        let spriteNode = SKSpriteNode(color: .red, size: CGSize(width: 100, height: 100))
        spriteNode.physicsBody = physicsBody
        spriteNode.position = CGPoint(x: scene.size.width / 2, y: scene.size.height / 2)
        
        scene.addChild(spriteNode)
        
        scene.showsPhysics = true // 打开showPhysics
        
        return scene
    }
}

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