code: func (b *ImportLookupBody) Serialize(version uint8) ([]byte, error) {
  	buf := make([]byte, 1)
  	buf[0] = b.PrefixLength
  	buf = append(buf, b.Addr.To4()...)
  	return buf, nil
  }
docs: // Quagga only. Reference: zread_ipv4_import_lookup in zebra/zserv.c of Quagga1.2.x (ZAPI3)