Nuxt/test/fixtures/basic/pages/wrapper-expose/page.vue

<template>
  <div>
    <NuxtPage ref="page" />

    <button
      id="log-hello"
      @click="logHello"
    >
      hello
    </button>
    <button
      id="log-foo"
      @click="logFoo"
    >
      foo
    </button>
  </div>
</template>

<script setup lang="ts">
const page = ref()

function logFoo () {
  page.value.pageRef.foo()
}

function logHello () {
  page.value.pageRef.hello()
}
</script>