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: node.go
    path of file: ./repos/octant/vendor/github.com/google/uuid
    
    the code of the file until where you have to start completion: // Copyright 2016 Google Inc.  All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package uuid

import (
	"sync"
)

var (
	nodeMu sync.Mutex
	ifname string  // name of interface being used
	nodeID [6]byte // hardware for version 1 UUIDs
	zeroID [6]byte // nodeID with only 0's
)

// NodeInterface returns the name of the interface from which the No
    
func setNodeInterface(name string) bool {
	iname, addr := getHardwareInterface(name) // null implementation for js
	if iname != "" && addr != nil {
		ifname = iname
		copy(nodeID[:], addr)
		return true
	}

	// We found no interfaces with a valid hardware address.  If name
	// does not specify a specific interface generate a random Node ID
	// (section 4.1.6)
	if name == "" {
		ifname = "random"
		randomBits(nodeID[:])
		return true
	}
	return false
}