如何将摄像头预览放入UIImageView？

import AVFoundation

func setupCameraPreview() {
    let captureSession = AVCaptureSession()
    captureSession.sessionPreset = AVCaptureSession.Preset.high
    
    guard let captureDevice = AVCaptureDevice.default(for: .video) else { return }
    
    do {
        let input = try AVCaptureDeviceInput(device: captureDevice)
        captureSession.addInput(input)
    } catch {
        print(error.localizedDescription)
        return
    }
    
    let previewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
    previewLayer.videoGravity = AVLayerVideoGravity.resizeAspectFill
    previewLayer.frame = imageView.bounds
    imageView.layer.addSublayer(previewLayer)
    
    captureSession.startRunning()
}