如何在v-autocomplete(vuejs & vuetify)上设置第二个值为可选项

<v-autocomplete
  v-model="selectedItem"
  :items="items"
  item-text="name"
  item-value="value"
></v-autocomplete>

data() {
  return {
    selectedItem: null,
    items: [
      { name: 'Option 1', value: 'option1' },
      { name: 'Option 2', value: 'option2' },
      { name: 'Option 3', value: 'option3' }
    ]
  };
}

data() {
  return {
    selectedItem: null,
    items: [
      { name: 'Option 1', value: 'option1', secondValue: 'second1' },
      { name: 'Option 2', value: 'option2', secondValue: 'second2' },
      { name: 'Option 3', value: 'option3', secondValue: 'second3' }
    ]
  };
}

watch: {
  selectedItem(newValue) {
    if (newValue) {
      const secondValue = this.items.find(item => item.value === newValue).secondValue;
      console.log(secondValue);
    }
  }
}