Is smoke required for Techies to kill Roshan in early levels?

//ads -- adsterra.com -- native banner
?>
I have seen a video of Techies killing Roshan at level 8 with Arcane Boots, Soul Ring etc, in that video he first uses Smoke of Deceit to disappear and then he did that trick.
Is there any connection with the smoke thing and that trick working or not?
Pictures about "Is smoke required for Techies to kill Roshan in early levels?"



How to kill Roshan at Level 1
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Markus Distelrath, cottonbro, Ron Lach, Ron Lach