Uncaught ReferenceError: iziToast is not defined

{{define "scripts"}}

<script src="/admin/assets/js/iziToast.min.js"></script> 
<script> iziToast.show({ title: 'Hey', message: 'What would you like to add?' }); </script>

{{end}}

Although I define it as a script, I cannot get the message on the site when I run it.

I was expecting ‘What would you like to add?’ but I get ‘Uncaught ReferenceError: iziToast is not defined’ error in the console.