size_t *data_len);
int sd_dhcp_lease_get_client_id(sd_dhcp_lease *lease, const uint8_t **client_id,
size_t *client_id_len);
+int sd_dhcp_lease_get_timezone(sd_dhcp_lease *lease, const char **timezone);
int sd_dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file);
int sd_dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file);