_Aliens/assets/module_aliens/Script/Manager/UserMgr.ts

import { Node, Prefab, _decorator, assetManager, find, instantiate, sys } from 'cc';
import { UserModel } from '../Model/UserModel';
const { ccclass, property } = _decorator;

@ccclass('UserManager')
export class UserManager {
    private static _instance: UserManager | null = null;
    public static get instance(): UserManager {
        if (!this._instance) this._instance = new UserManager();
        return this._instance;
    }

    public userModel: UserModel = null;

    initilizeModel(): void {
        this.userModel = new UserModel();
        this.userModel.initialize();
    }
}