how do I hook into the hookUserAfterSave call?

[ziggyfish]

How do I create a function which will be called when the following is called (see line 2785 in core/vb/api/user.php )?

PHP Code:

                vB::getHooks()->invoke('hookUserAfterSave', array(
                        'adminoverride' => $adminoverride,
                        'userid' => $newuserid,
                        'newuser' => $newuser,
                        'emailVerificationRequired' => $verifyEmail,
                        'userIsModerated' => (!$adminoverride AND $newuser AND $vboptions['moderatenewmembers'])
                )); 

[noypiscripter]

There's a sample hook in the /do_not_upload directory of the vB5 package.