code: func (ps *PrintSettings) Copy() (*PrintSettings, error) {
  	c := C.gtk_print_settings_copy(ps.native())
  	if c == nil {
  		return nil, nilPtrErr
  	}
  	obj := glib.Take(unsafe.Pointer(c))
  	return wrapPrintSettings(obj), nil
  }
docs: // Copy() is a wrapper around gtk_print_settings_copy().