我的uni-appx项目 onBackPress方法，程序编译时报错‌error: Type mismatch: inferred type is (OnBackPressOptions)

用法不对，参考 https://gitcode.net/dcloud/hello-uni-app-x/-/blob/alpha/pages/API/navigator/navigator.uvue#L81

uni-appx项目 的onBackPress方法，应该这样用

onLoad() {  
    this.onLoadTime = Date.now()  
    console.log('onLoad', this.onLoadTime)  
  },  
  onShow() {  
    this.onShowTime = Date.now()  
    console.log('onShow', this.onShowTime)  
  },  
  onReady() {  
    this.onReadyTime = Date.now()  
    console.log('onReady', this.onReadyTime)  
  },  
  onHide() {  
    this.onHideTime = Date.now()  
    console.log('onHide', this.onHideTime)  
  },  
  onBackPress(options: OnBackPressOptions): boolean | null {  
    console.log('onBackPress', Date.now())  
    console.log('onBackPress from', options.from)  
    return null  
  },  
  onUnload() {  
    console.log('onUnload', Date.now())  
  },