cognito example react app trying to declare a type for useLocation.state

javascriptv3/example_code/cognito-identity-provider/scenarios/cognito-developer-guide-react-example/frontend-client/src/confirmUserPage.tsx

@@ -7,7 +7,7 @@ import { confirmSignUp } from './authService';
 
 const ConfirmUserPage = () => {
   const navigate = useNavigate();
-  const location = useLocation();
+  const location: Location<{ email: string }> = useLocation();
   const [email, setEmail] = useState(location.state?.email || '');
   const [confirmationCode, setConfirmationCode] = useState('');