title: How do I do Vue.set() in Vue 3?
body: <p>As explained <a href="https://v3-migration.vuejs.org/breaking-changes/global-api-treeshaking.html#_3-x-syntax" rel="nofollow noreferrer">here</a>, Vue 3 has moved a bunch of functions that were available on the global Vue instance. They are now named imports. This leads me to think I should be able to do <code>import {set} from 'vue'</code>, but I can't. It's not there. Where is set()?</p>