Get the output from expect script in a variable

I have an expect script which provides the IP address:

#!/bin/expect -fset nodename [lindex $argv 0]spawn virsh console $nodenameexpect "Escape character is"send "\n"expect "localhost login: " {    send "root\n"    expect "Password: "    send "cloud123\n"}expect "~]#" {        send "\n"        send "ifconfig | grep 192.168.1. | awk \'{print \$2}\'"        send "\n"        expect '(\d+\.\d+\.\d+\.\d+)'        send "logout"}

I want the script to return this IP address. I am calling this expect script from a shell script as below

#!/bin/baship=$(expect GetIP.exp nodetwo)echo $ip

How can I make my expect script return output to the shell script?