vercel有免费的analytics和speed insights 怎么结合该主题使用

[vperson]

vercel的analytics：

https://vercel.com/docs/analytics/quickstart#add-the-analytics-component-to-your-app

vercel的speed insights ：
https://vercel.com/docs/speed-insights/quickstart#add-the-speedinsights-component-to-your-app

我使用inject.js没有成功:
source/scripts/inject.js

const js = hexo.extend.helper.get('js').bind(hexo);

hexo.extend.injector.register('body_begin', () => {
    return js('/scripts/speed-insights.js');
});

hexo.extend.injector.register('body_begin', () => {
    return js('./vercel-analytics.js');
});

source/scripts/speed-insights.js

import { injectSpeedInsights } from '@vercel/speed-insights';

injectSpeedInsights();

source/scripts/vercel-analytics.js

import { inject } from '@vercel/analytics';

inject();