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: remoteworker.go
    path of file: ./repos/lotus/node/impl
    
    the code of the file until where you have to start completion: package impl

import (
	"context"
	"net/http"

	"golang.org/x/xerrors"

	"github.com/filecoin-project/go-jsonrpc"
	"github.com/filecoin-project/go-jsonrpc/auth"
	"github.com/filecoin-project/go-state-types/abi"

	"github.com/filecoin-project/lotus/api"
	"github.com/filecoin-project/lotus/api/client"
	"github.com/filecoin-project/lotus/storage/sealer"
)

type remoteWorker struct {
	api.Worker
	closer jsonrpc.ClientCloser
}

func (r *remoteWorker) NewSector(ctx context.Context, sector abi.SectorID) error {
	return xerrors.New("unsupported")
}

func
    
func connectRemoteWorker(ctx context.Context, fa api.Common, url string) (*remoteWorker, error) {
	token, err := fa.AuthNew(ctx, []auth.Permission{"admin"})
	if err != nil {
		return nil, xerrors.Errorf("creating auth token for remote connection: %w", err)
	}

	headers := http.Header{}
	headers.Add("Authorization", "Bearer "+string(token))

	wapi, closer, err := client.NewWorkerRPCV0(context.TODO(), url, headers)
	if err != nil {
		return nil, xerrors.Errorf("creating jsonrpc client: %w", err)
	}

	wver, err := wapi.Version(ctx)
	if err != nil {
		closer()
		return nil, err
	}

	if !wver.EqMajorMinor(api.WorkerAPIVersion0) {
		return nil, xerrors.Errorf("unsupported worker api version: %s (expected %s)", wver, api.WorkerAPIVersion0)
	}

	return &remoteWorker{wapi, closer}, nil
}