HarmonyOS 如何把一个使用@ObservedV2修饰的类传给子组件

参考示例如下：

import show from './ShowText'

@ObservedV2
class Person {
  @Trace
  name?: string

  constructor(name: string) {
    this.name = name
  }
}

@Entry
@Component
struct ObservedV2IndexPage {
  private person: Person = new Person('小李')

  build() {
    Column() {
      show({ person: this.person })
      Button("确定")
        .onClick(() => {
          this.person.name = "小王"
        })
    }
    .height('100%')
    .width('100%')
  }
}

// ShowText.ets
@ObservedV2
class Person {
  @Trace
  name?: string

  constructor(name: string) {
    this.name = name
  }
}

@Component
export default struct ShowText {
  @State message: string = 'Hello World';
  person?: Person

  build() {
    Column() {
      Text(this.person?.name)
        .fontSize(16)
        .fontWeight(FontWeight.Bold)
    }
  }
}