Flarum\Core\Access\AbstractPolicy::subscribe PHP Method

    public function subscribe(Dispatcher $events)
    {
        $events->listen(GetPermission::class, [$this, 'getPermission']);
        $events->listen(GetPermission::class, [$this, 'getPermissionAfter'], -100);
        $events->listen(ScopeModelVisibility::class, [$this, 'scopeModelVisibility']);
    }

 /**
  * {@inheritdoc}
  */
 public function subscribe(Dispatcher $events)
 {
     parent::subscribe($events);
     $events->listen(ScopeHiddenDiscussionVisibility::class, [$this, 'scopeHiddenDiscussionVisibility']);
 }