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: remote.go
    path of file: ./repos/upspin/dir/remote
    
    the code of the file until where you have to start completion: // Copyright 2016 The Upspin Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package remote implements an inprocess directory server that uses RPC to
// connect to a remote directory server.
package remote // import "upspin.io/dir/remote"

import (
	"fmt"

	pb "github.com/golang/protobuf/proto"

	"u
    
func (r *remote) Dial(config upspin.Config, e upspin.Endpoint) (upspin.Service, error) {
	op := r.opf("Dial", "%q, %q", config.UserName(), e)

	if e.Transport != upspin.Remote {
		return nil, op.error(errors.Invalid, "unrecognized transport")
	}

	// First try a cache
	if svc, err := dialCache(config, e); err != nil {
		return nil, op.error(err)
	} else if svc != nil {
		return svc, nil
	}

	authClient, err := rpc.NewClient(config, e.NetAddr, rpc.Secure, upspin.Endpoint{})
	if err != nil {
		return nil, op.error(errors.IO, err)
	}

	// The connection is closed when this service is released (see Bind.Release)
	r = &remote{
		Client: authClient,
		cfg: dialConfig{
			endpoint: e,
			userName: config.UserName(),
		},
	}

	return r, nil
}