code: func RecentManagerGetDefault() (*RecentManager, error) {
  	c := C.gtk_recent_manager_get_default()
  	if c == nil {
  		return nil, nilPtrErr
  	}
  	obj := glib.Take(unsafe.Pointer(c))
  	v := wrapRecentManager(obj)
  	return v, nil
  }
docs: // RecentManagerGetDefault is a wrapper around gtk_recent_manager_get_default().