How to call a method from the root vue instance?

Question

Vue.js

Hello, I'm learning vue.
The documentation says

// Вызов методов корневого экземпляра
this.$root.baz()

But how to register in the child?

methods: {
this.$root.baz()

        }

but something is wrong)) tell me thanks.

Answer 1

methods: {
  method1() {
    this.$root.baz()
  }
}

Answer 2

Alex , This is the first time I've heard about localstorage requests, any user can view and change them