How to call libraries in config file

Hi,

I've made a general menu array in app_config.php to call it easily anywhere on my controllers.
Now i decided to have multilingual functionality for my app and i cant use $this->lang->line('my_menu_name') in the config file.

PHP Code:

$config['menu'] = array(
 $this->lang->line('profile') => '/profile',
 'Settings'          => '/settings',
); 


Is there any way to make this happen? (I can't change the menu array place - should be in app_config.php)

Thanks guys