code: func RecentFilterNew() (*RecentFilter, error) {
  	c := C.gtk_recent_filter_new()
  	if c == nil {
  		return nil, nilPtrErr
  	}
  	return wrapRecentFilter(glib.Take(unsafe.Pointer(c))), nil
  }
docs: // RecentFilterNew is a wrapper around gtk_recent_filter_new().