Singleton pattern in Golang

singleton.go

package main

import (
	"fmt"
	"time"
)

var instance TheOnlyOne = &onlyOne{time.Now()}

type TheOnlyOne interface {
}

type onlyOne struct {
	created_at time.Time
}

func New() TheOnlyOne {
	return instance
}

func main() {
	a := New()
	fmt.Printf("%T -> %p\n", a, a)

	b := New()
	fmt.Printf("%T -> %p\n", b, b)

	if a == b {
		fmt.Println("Yep this is the very same reference")
	} else {
		fmt.Println("Well this is a fine mess")
	}
}