在TreeView节点上存储数据的最佳方法是什么？

  <TreeView :items="items">
   <template #prepend="{ item }">
      <v-icon v-if="item.children">
        {{ item.expanded ? 'mdi-folder-open' : 'mdi-folder' }}
      </v-icon>
      <v-icon v-else>
        mdi-file-document
      </v-icon>
    </template>
  </TreeView>
</template><script>
export default {
  data() {
    return {
      items: [
        {
          id: 1,
          name: 'Node 1',
          children: [
            { id: 2, name: 'Node 1.1' },
            { id: 3, name: 'Node 1.2' },
          ],
        },
        {
          id: 4,
          name: 'Node 2',
          children: [
            { id: 5, name: 'Node 2.1' },
            { id: 6, name: 'Node 2.2' },
          ],
        },
      ],
    };
  },
};
</script>