nextjs auth redirects when already logged in

how to redirect to

/u/dashboard

/u/dashboard

(protected page) with

@supabase/auth-helpers-nextjs

@supabase/auth-helpers-nextjs

when user is already logged in?

// login.tsx
export const getServerSideProps: GetServerSideProps = async (context) => {
  return { props: {} }
}

// login.tsx
export const getServerSideProps: GetServerSideProps = async (context) => {
  return { props: {} }
}