如何将socket.io宽度表示为TypeScript？

{
  "compilerOptions": {
    "module": "commonjs",
    "esModuleInterop": true,
    "target": "es6",
    "outDir": "dist",
    "baseUrl": ".",
    "paths": {
      "*": ["node_modules/*"]
    }
  },
  "include": ["src/**/*.ts"],
  "exclude": ["node_modules"]
}

import * as express from 'express';
import * as http from 'http';
import * as socketio from 'socket.io';

const app = express();
const server = http.createServer(app);
const io = socketio(server);

io.on('connection', (socket: socketio.Socket) => {
  console.log('A user connected');

  socket.on('disconnect', () => {
    console.log('A user disconnected');
  });
});

server.listen(3000, () => {
  console.log('Server is running on port 3000');
});

tsc

node dist/app.js