Get user data in package controller in Concrete 5.7

Question

I know how to get it in the view:

$u = new User();
$u->isLoggedIn();

How about the controller?

Error: Class 'Concrete\Package\PageRedirect\User' not found

I am using C5.7.

Answer 1

(Posted solution on behalf of the OP).

http://documentation.concrete5.org/developers/users-groups/reading-data-existing-users

use Concrete\Core\User\User; or use User.