     cfg::MirrorTunnel tunnel;     cfg::SflowTunnel sflowTunnel;     *sflowTunnel.ip_ref() = "00.0.0.0";     sflowTunnel.udpSrcPort_ref() = 0000;     sflowTunnel.udpDstPort_ref() = 0000;     tunnel.sflowTunnel_ref() = sflowTunnel;     newCfg.mirrors_ref()->resize(0);     *newCfg.mirrors_ref()[0].name_ref() = "