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: register_v2.go
    path of file: ./repos/cds/engine/worker/internal
    
    the code of the file until where you have to start completion: package internal

import (
	"context"
	"errors"

	"github.com/rockbears/log"

	"github.com/ovh/cds/sdk"
)

// V2Register Workers need to register to main api so they can run actions
func (w *CurrentWorker) V2Re
    
func (w *CurrentWorker) V2Register(ctx context.Context, runJobID, region string) error {
	var form sdk.WorkerRegistrationForm
	log.Info(ctx, "Registering on %s", w.cfg.APIEndpoint)

	form.Version = sdk.VERSION
	form.OS = sdk.GOOS
	form.Arch = sdk.GOARCH

	worker, err := w.ClientV2().V2WorkerRegister(context.Background(), w.cfg.APIToken, form, region, runJobID)
	if err != nil {
		return sdk.WithStack(err)
	}

	if worker.ID == "" {
		return sdk.WithStack(errors.New("worker registration failed"))
	}
	w.id = worker.ID
	return nil
}