HarmonyOS 如何打印出对象16进制标识

参考如下方法：

class TestPeople {
  id?: number
  name: string = '123'
  age: number = 0
  gender: boolean = false
  height: number = 1.0
}

let obj:TestPeople = new TestPeople()
let result = util.getHash(obj);
console.info('result is ' + result.toString(16))
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参考文档：https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/js-apis-util-V5#utilgethash12