// GetRealServers returns all real servers for the specified virtual server.
	GetRealServers(*VirtualServer) ([]*RealServer, error)
	// DeleteRealServer deletes the specified real server from the specified virtual server.
	DeleteRealServer(*VirtualServer, *RealServer) error
	// UpdateRealServer updates the specified real server from the specified virtual server.
	UpdateRealServer(*VirtualServer, *RealServer) error

		return nil, fmt.Errorf("failed to get destinations for service %v, service not found", key.String())
	}
	return f.Destinations[key], nil
}

// DeleteRealServer is a fake implementation, it deletes the real server in the cache store.
func (f *FakeIPVS) DeleteRealServer(serv *utilipvs.VirtualServer, dest *utilipvs.RealServer) error {
	if serv == nil || dest == nil {

		}
		if len(list) != rssLen {
			t.Errorf("Expect %d virtual servers, got: %d", len(rss), len(list))
		}
		rsToDel := list[i]
		if err = fake.DeleteRealServer(vs, rsToDel); err != nil {
			t.Errorf("Fail to delete real server of the virtual server, error: %v", err)
		} else {
			dests, err := fake.GetRealServers(vs)
			if err != nil {

	}
	runner.mu.Lock()
	defer runner.mu.Unlock()
	return runner.ipvsHandle.NewDestination(svc, dst)
}

// DeleteRealServer is part of ipvs.Interface.
func (runner *runner) DeleteRealServer(vs *VirtualServer, rs *RealServer) error {
	svc, err := toIPVSService(vs)
	if err != nil {
		return fmt.Errorf("could not convert local virtual server to IPVS service: %w", err)
	}

				return false, nil
			}
			klog.V(5).InfoS("Deleting real server", "realServer", rsToDelete)
			err := m.ipvs.DeleteRealServer(rsToDelete.VirtualServer, rs)
			if err != nil {
				return false, fmt.Errorf("delete destination %q err: %w", rs.String(), err)
			}
			return true, nil
		}
	}

	return nil
}
func (f *fakeIpvs) GetRealServers(*utilipvs.VirtualServer) ([]*utilipvs.RealServer, error) {
	return nil, nil
}
func (f *fakeIpvs) DeleteRealServer(*utilipvs.VirtualServer, *utilipvs.RealServer) error {
	return nil
}
func (f *fakeIpvs) UpdateRealServer(*utilipvs.VirtualServer, *utilipvs.RealServer) error {
	return nil
}