How to use the nativescript-vue.navigateTo function in nativescript-vue

onAuthStateChanged: data => { // optional
    console.log((data.loggedIn ? "Logged in to firebase" : "Logged out from firebase") + " (init's onAuthStateChanged callback)");
    if (data.loggedIn) {
      backendService.token = data.user.uid
      console.log(data.user.uid)
      store.commit('setUser', data.user)
      Vue.navigateTo(Home)
    }
    else {
      backendService.token = ""
      Vue.navigateTo(Login)
    }
  }
}).then(

onAuthStateChanged: data => { // optional
    console.log((data.loggedIn ? "Logged in to firebase" : "Logged out from firebase") + " (init's onAuthStateChanged callback)");
    if (data.loggedIn) {
      backendService.token = data.user.uid
      console.log(data.user.uid)
      store.commit('setUser', data.user)
      Vue.navigateTo(Home)
    }
    else {
      backendService.token = ""
      Vue.navigateTo(Login)
    }
  }
}).then(

Vue.prototype.$changeRoute = (to) => {
  Vue.navigateTo(routes[to])
  }

  render: h => h(backendService.isLoggedIn() ? Vue.navigateTo(Home) : Vue.navigateTo(Login)),