请问，在 webman 里的 controller 里如何引入 model

composer require vlucas/phpdotenv ^5.1.0
composer require illuminate/database ^8.0

<?php
namespace app\controller;

use support\Request;

use app\model\User;

class Index
{
    public function index(Request $request)
    {
        return json(User::all());
    }
}

<?php

namespace app\model;

use support\Model;

class User extends Model
{
    protected $table = 'user';
    protected $primaryKey = 'uid';
    public $timestamps = false;
}