definePageMeta isn't working in my TSX component

// pages/account/index.tsx
const AccountPage = defineComponent({
    setup() {
        definePageMeta({ layout: 'account' });
    },
    render() {
        return (
            <div>a</div>
        )
    }
});

export default AccountPage;

// pages/account/index.tsx
const AccountPage = defineComponent({
    setup() {
        definePageMeta({ layout: 'account' });
    },
    render() {
        return (
            <div>a</div>
        )
    }
});

export default AccountPage;