Firefox 57 / Quantum: emulate print styles

Question

How can I emulate the media type \"print\" in the new Firefox Quantum dev console?

Tried to enable it somehow and searched the documentation but couldn\'t find any

Answer 1

[UPD] this console has gone starting from v62. But after some time toggle button for switching into Print mode is available in DevTools again. Please check another answer below(unable to delete accepted answer)

I thought it's impossible. But suddenly have found answer in another topic:

1. press Shift + F2 to get special browser console
2. type "media emulate print"
3. hit "Enter"

That's it.