create-cocos-plugin/templates/demo/src/panels/provide-inject.ts

> **Compatibility Note:** > create-cocos-plugin dependens on Vite. Vite requires [Node.js](https://nodejs.org/en/) version 18+, 20+. However, some templates require a higher Node.js version to work, please upgrade if your package manager warns about it.

import type { InjectionKey } from 'vue';

import type { MessageOptions, MessageHandler } from 'element-plus';

export const keyAppRoot = Symbol() as InjectionKey<HTMLElement>;

export const keyMessage = Symbol() as InjectionKey<(options?: MessageOptions) => MessageHandler>;