graphql.tsx file not updating code example

Example: how to update usequery after mutation in apollo client

// https://www.apollographql.com/docs/tutorial/local-state/

const [mutate, { loading, error }] = useMutation(
    isBooked ? CANCEL_TRIP : TOGGLE_CART,
    {
      variables: { launchId: id },
      refetchQueries: [
        {
          query: GET_LAUNCH_DETAILS,
          variables: { launchId: id },
        },
      ]
    }
  );