如何使用接口注释构造函数

Question

在以下代码中：

interface Person {}
interface PersonConstructor {
    new (): Person;
}

let Person: PersonConstructor = function () {};
let person: Person = new Person();

我收到错误消息：

[ts]
Type '() => void' is not assignable to type 'PersonConstructor'.
Type '() => void' provides no match for the signature 'new (): Person'.

用接口注释构造函数的正确方法是什么？