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: conn_other.go
    path of file: ./repos/kubernetes/vendor/github.com/godbus/dbus/v5
    
    the code of the file until where you have to start completion: // +build !darwin

package dbus

import (
	"bytes"
	"errors"
	"fmt"
	"io/ioutil"
	"os"
	"os/exec"
	"os/user"
	"path"
	"strings"
)

var execCommand = exec.Command

func getSessionBusPlatformAddress() (string, error) {
	cmd := execCommand("dbus-launch")
	b, err := cmd.CombinedOutput()

	if err != nil {
		
    
func tryDiscoverDbusSessionBusAddress() string {
	if runtimeDirectory, err := getRuntimeDirectory(); err == nil {

		if runUserBusFile := path.Join(runtimeDirectory, "bus"); fileExists(runUserBusFile) {
			// if /run/user/<uid>/bus exists, that file itself
			// *is* the unix socket, so return its path
			return fmt.Sprintf("unix:path=%s", EscapeBusAddressValue(runUserBusFile))
		}
		if runUserSessionDbusFile := path.Join(runtimeDirectory, "dbus-session"); fileExists(runUserSessionDbusFile) {
			// if /run/user/<uid>/dbus-session exists, it's a
			// text file // containing the address of the socket, e.g.:
			// DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-E1c73yNqrG

			if f, err := ioutil.ReadFile(runUserSessionDbusFile); err == nil {
				fileContent := string(f)

				prefix := "DBUS_SESSION_BUS_ADDRESS="

				if strings.HasPrefix(fileContent, prefix) {
					address := strings.TrimRight(strings.TrimPrefix(fileContent, prefix), "\n\r")
					return address
				}
			}
		}
	}
	return ""
}