func (v *SList) Next() *SList {
	n := v.native()
	if n == nil {
		return nil
	}

	return wrapSList(n.next)
}
func (v *SList) Next() *SList {
	n := v.native()
	if n == nil {
		return nil
	}

	return wrapSList(n.next)
}
// Next is a wrapper around the next struct field