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: label_linux.go
    path of file: ./repos/kubernetes/vendor/github.com/opencontainers/selinux/go-selinux/label
    
    the code of the file until where you have to start completion: package label

import (
	"errors"
	"fmt"
	"strings"

	"github.com/opencontainers/selinux/go-selinux"
)

// Valid Label Options
var validOptions = map[string]bool{
	"disable":  true,
	"type":     true,
	"filetype": true,
	"user":     true,
	"role":     true,
	"level":    true,
}

var ErrIncompatibleLabel = errors.New("Bad SELinux option z and Z can not be used together")

// InitLabels returns the process label and file labels to be used within
// the container.  A list of options can be passed into this function to alter
// the labels.  The labels returned will include a random MCS String, that is
// guaranteed to be unique.
// If the disabled flag is passed in, the process label will not be set, but
    
func InitLabels(options []string) (plabel string, mlabel string, retErr error) {
	if !selinux.GetEnabled() {
		return "", "", nil
	}
	processLabel, mountLabel := selinux.ContainerLabels()
	if processLabel != "" {
		defer func() {
			if retErr != nil {
				selinux.ReleaseLabel(mountLabel)
			}
		}()
		pcon, err := selinux.NewContext(processLabel)
		if err != nil {
			return "", "", err
		}
		mcsLevel := pcon["level"]
		mcon, err := selinux.NewContext(mountLabel)
		if err != nil {
			return "", "", err
		}
		for _, opt := range options {
			if opt == "disable" {
				selinux.ReleaseLabel(mountLabel)
				return "", selinux.PrivContainerMountLabel(), nil
			}
			if i := strings.Index(opt, ":"); i == -1 {
				return "", "", fmt.Errorf("Bad label option %q, valid options 'disable' or \n'user, role, level, type, filetype' followed by ':' and a value", opt)
			}
			con := strings.SplitN(opt, ":", 2)
			if !validOptions[con[0]] {
				return "", "", fmt.Errorf("Bad label option %q, valid options 'disable, user, role, level, type, filetype'", con[0])
			}
			if con[0] == "filetype" {
				mcon["type"] = con[1]
				continue
			}
			pcon[con[0]] = con[1]
			if con[0] == "level" || con[0] == "user" {
				mcon[con[0]] = con[1]
			}
		}
		if pcon.Get() != processLabel {
			if pcon["level"] != mcsLevel {
				selinux.ReleaseLabel(processLabel)
			}
			processLabel = pcon.Get()
			selinux.ReserveLabel(processLabel)
		}
		mountLabel = mcon.Get()
	}
	return processLabel, mountLabel, nil
}