Vue.js: How do you use effectScope?

1import { effectScope, ref, computed } from "vue"
2
3const scope = effectScope()
4
5scope.run(() => {
6  const count = ref(0)
7  const doubled = computed(() => count.value * 2)
8})
9
10scope.stop()  // Dispose all effects

1const parentScope = effectScope()
2const childScope = parentScope.run(() => {
3  const nestedScope = effectScope(true)
4})
5parentScope.stop()  // Stops all