You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: route_windows.go
    path of file: ./repos/minikube/pkg/minikube/tunnel
    
    the code of the file until where you have to start completion: /*
Copyright 2018 The Kubernetes Authors All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package tunnel

import (
	"fmt"
	"net"
	"os/exec"
	"strings"

	"k8s.io/klog/v2"
)

func (router *osRouter) EnsureRouteIsAdded(route *Route) error {
	exists, err := isValidToAddOrDelete(router, route)
	if err != nil {
		return err
	}
	if exists {
		return nil
	}

	serviceCIDR := route.DestCIDR.String()
	destinationIP := route.DestCIDR.IP.String
    
func (router *osRouter) parseTable(table []byte) routingTable {
	t := routingTable{}
	skip := true
	for _, line := range strings.Split(string(table), "\n") {
		// after first line of header we can start consuming
		if strings.HasPrefix(line, "Network Destination") {
			skip = false
			continue
		}

		fields := strings.Fields(line)
		// don't care about the 0.0.0.0 routes
		if skip || len(fields) == 0 || len(fields) > 0 && (fields[0] == "default" || fields[0] == "0.0.0.0") {
			continue
		}
		if len(fields) > 2 {
			dstCIDRIP := net.ParseIP(fields[0])
			dstCIDRMask := fields[1]
			dstMaskIP := net.ParseIP(dstCIDRMask)
			gatewayIP := net.ParseIP(fields[2])
			if dstCIDRIP == nil || dstMaskIP == nil || gatewayIP == nil {
				klog.V(4).Infof("skipping line: can't parse all IPs from routing table: %s", line)
			} else {
				tableLine := routingTableLine{
					route: &Route{
						DestCIDR: &net.IPNet{
							IP:   dstCIDRIP,
							Mask: net.IPMask(dstMaskIP.To4()),
						},
						Gateway: gatewayIP,
					},
					line: line,
				}
				klog.V(4).Infof("adding line %v", tableLine)
				t = append(t, tableLine)
			}
		}
	}

	return t
}