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: selinux.go
    path of file: ./repos/kubeedge/vendor/k8s.io/kubernetes/pkg/volume/util
    
    the code of the file until where you have to start completion: /*
Copyright 2022 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http:/
    
func (l *fakeTranslator) SELinuxOptionsToFileLabel(opts *v1.SELinuxOptions) (string, error) {
	if opts == nil {
		return "", nil
	}
	// Fill empty values from "system defaults" (taken from Fedora Linux).
	user := opts.User
	if user == "" {
		user = "system_u"
	}

	role := opts.Role
	if role == "" {
		role = "object_r"
	}

	// opts is context of the *process* to run in a container. Translate
	// process type "container_t" to file label type "container_file_t".
	// (The rest of the context is the same for processes and files).
	fileType := opts.Type
	if fileType == "" || fileType == "container_t" {
		fileType = "container_file_t"
	}

	level := opts.Level
	if level == "" {
		// If empty, level is allocated randomly.
		level = "s0:c998,c999"
	}

	ctx := fmt.Sprintf("%s:%s:%s:%s", user, role, fileType, level)
	return ctx, nil
}