import { toReactive } from '@vueuse/core'
import { ref } from 'vue'

const refState = ref({ foo: 'bar' })

console.log(refState.value.foo) // => 'bar'

const state = toReactive(refState) // <--

console.log(state.foo) // => 'bar'

refState.value = { bar: 'foo' }

console.log(state.foo) // => undefined
console.log(state.bar) // => 'foo'