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: archive.go
    path of file: ./repos/plik/client/archive
    
    the code of the file until where you have to start completion: package archive

import (
	"errors"
	"io"

	"github.com/root-gg/plik/client/archive/tar"
	"github.com/root-gg/plik/client/archive/zip"
)

// Backend interface describe m
    
func NewArchiveBackend(name string, config map[string]interface{}) (backend Backend, err error) {
	switch name {
	case "tar":
		backend, err = tar.NewTarBackend(config)
	case "zip":
		backend, err = zip.NewZipBackend(config)
	default:
		err = errors.New("Invalid archive backend")
	}
	return
}