I would like to inject this particular script into the HTML of a website. I'm writing a chrome extension and I just don't know how to turn this script into javascript or injecting it and then execute it. In the end, I just want to execute this script after everything has been loaded including my other scripts for the extensions. ``
<script async defer src="https://apis.google.com/js/api.js"
onload="this.onload=function(){};handleClientLoad()"
onreadystatechange="if (this.readyState === 'complete') this.onload()">
</script>
``