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: domain.go
    path of file: ./repos/terraformer/providers/myrasec
    
    the code of the file until where you have to start completion: package myrasec

import (
	"fmt"
	"runtime"
	"strconv"
	"sync"

	"github.com/GoogleCloudPlatform/terraformer/terraformutils"
	mgo "github.com/Myra-Security-GmbH/myrasec-go/v2"
)

//
// DomainGenerator
//
type DomainGenerator struct {
	MyrasecService
}

//
// createDomainResource
//
func (g *DomainGenerator) createDomainResource(api *mgo.API, domain mgo.Domain, wg *sync.WaitGroup) error {
	defer wg.Done()

	d := terraformutils.NewResource(
		strconv.Itoa(domain.ID),
		fmt.Sprintf("%s_%d", domain.Name, domain.ID),
		"myrasec_domain",
		"myrasec",
		map[string]string{},
		[]string{},
		map[string]interface{}{},
	)

	d.IgnoreKeys = append(d.IgnoreKeys, "^metadata")
	g.Resources = append(g.Resources, d)

	return nil
}

//
// InitResources
//
func (g *DomainGenerator) InitResources() error {
	v
    
func createResourcesPerVHost(api *mgo.API, domain mgo.Domain, funcs []func(*mgo.API, int, mgo.VHost, *sync.WaitGroup) error, wg *sync.WaitGroup) error {
	defer wg.Done()

	page := 1
	pageSize := 250
	params := map[string]string{
		"pageSize": strconv.Itoa(pageSize),
		"page":     strconv.Itoa(page),
	}

	waitChan := getWaitChannel()
	count := 0

	for {
		params["page"] = strconv.Itoa(page)

		vhosts, err := api.ListAllSubdomainsForDomain(domain.ID, params)
		if err != nil {
			return err
		}

		wg.Add(len(vhosts) * len(funcs))
		for _, v := range vhosts {
			for _, f := range funcs {
				waitChan <- struct{}{}
				count++
				go func(count int, v mgo.VHost, f func(*mgo.API, int, mgo.VHost, *sync.WaitGroup) error) {
					f(api, domain.ID, v, wg)
					<-waitChan
				}(count, v, f)
			}
		}
		if len(vhosts) < pageSize {
			break
		}
		page++
	}
	return nil
}