def unprovision_vdp_overlay_networks(self, net_uuid, lvid, vdp_vlan, oui):
        # check validity
        if not ovs_lib.is_valid_vlan_tag(vdp_vlan):
            LOG.error(_LE("Cannot unprovision VDP Overlay network for"
                      " net-id=%(net_uuid)s - Invalid "),
                      {'net_uuid': net_uuid})
            return

        LOG.info(_LI('unprovision_vdp_overlay_networks: add_flow for '
                     'Local Vlan %(local_vlan)s VDP VLAN %(vdp_vlan)s'),
                 {'local_vlan': lvid, 'vdp_vlan': vdp_vlan})
        # outbound
        self.ext_br_obj.delete_flows(
            in_port=self.phy_peer_port_num, dl_vlan=lvid)
        # inbound
        self.integ_br_obj.delete_flows(in_port=self.int_peer_port_num,
                                       dl_vlan=vdp_vlan)

    # fixme(padkrish)
Test getting the keys in an empty state
dataset/ETHPy150Open openstack/networking-cisco/networking_cisco/apps/saf/agent/vdp/ovs_vdp.py/OVSNeutronVdp.unprovision_vdp_overlay_networks--crossover with--dataset/ETHPy150Open duerrp/pyexperiment/tests/test_state.py/TestBasicState.test_empty_keys