import { onMounted, reactive, ref } from "vue";

As an AI language model, I don't have access to the entire context of your code. However, I can explain what these Vue.js functions do:

1. `onMounted`: This is a lifecycle hook in Vue.js that gets called when the component is mounted onto the DOM. You can use this hook to perform any side effects or initialize data when the component is ready.

2. `reactive`: This is a function that creates a reactive object in Vue.js. When you pass an object to this function, it returns a reactive proxy that allows you to track changes to the object and update the UI accordingly.

3. `ref`: This is a function that creates a reactive reference in Vue.js. When you pass a value to this function, it returns a reactive reference that you can use to access and update the value in your template or script.

Overall, these functions are used to make your Vue.js code more reactive and efficient.