Community-Auth variables?

Hi skunkbad sorry for this inconvenience.
I re-dig the codes again and I found out the documentation and the actual codes do not matched.

In the documentation for example it says this for view variables.

Code:

$auth_username

But the actual codes said this,

Code:

        // Set user specific variables to be available in all views
        $data = array(
            'auth_user_id'    => $this->auth_user_id,
            'auth_user_name'  => $this->auth_user_name,
            'auth_level'      => $this->auth_level,
            'auth_role'       => $this->auth_role,
            'auth_email'      => $this->auth_email
        );

confusing

lol

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