问如何在TypeScript中正确扩展NodeJS类？

EN

///<reference path="../../typings/node/node.d.ts"/>

class GameObject {
    id:number;
    name:string;
}

module.exports = GameObject; 

///<reference path="../../typings/node/node.d.ts"/>
///<reference path="Image.ts"/>
///<reference path="GameObject.ts"/>


class Champion extends GameObject {
    // ...
}

module.exports = Champion;

// I tried referencing the Champion.ts which haven't changed anything
var Champion = require('../api/types/Champion');
var c = new Champion();

///<reference path="GameObject.ts"/>
var GameObject = require('./GameObject');
class Champion extends GameObject {

$ tsc -v
message TS6029: Version 1.6.2