"whatever you want" is the User-Agent in the top answer for "Change user-agent for Selenium web-driver" on Stack Overflow :
https://stackoverflow.com/questions/29916054/change-user-age...
https://stackoverflow.com/questions/29916054/change-user-age...
I run into it ALL the time and no matter how you write instructions, at least 1/3 of people won't read them but just skim to what they think they need and then copy/paste. Ugh.