How to load config options into library from model. in Ci4.5

This works, didn't think it would be that easy for some reason lol.

PHP Code:

$config = array(
            'Sandbox' => FALSE,     
            'APIUsername' => $pp_username,
            'APIPassword' => $pp_password,
            'APISignature' => $pp_signature, 
            'APISubject' => '',
            'APIVersion' => config('Paypal')->APIVersion
        );
        $this->Paypal_pro = new Paypal_pro($config);