vue3 toRaw is not defined

`toRaw` is a new function introduced in Vue 3's `@vue/reactivity` package. You need to import it first before using it.

Here's an example:

import { reactive, toRaw } from 'vue';

const original = { foo: 'bar' };
const observed = reactive(original);

const raw = toRaw(observed); // returns the original object

console.log(raw === original); // true

Make sure that you have installed the `@vue/reactivity` package and imported `toRaw` from it.