How to reset the idle timer?

Hi all,

I'd like to tell Emacs "start counting the idle time from now", even if
the user didn't do anything.  How to do that?

I asked an LLM, and it told me to say

(setq unread-command-events '(t))

However, it had troubles explaining why I should use `(t)'.  The docs
for `unread-command-events' didn't help much, either.  By trial and
error I found out that

(setq unread-command-events nil)

is better in the sense that it doesn't pollute `view-lossage'.  Is that
a correct way?  Is that the best way?

TIA,

-- 
Marcin Borkowski
https://mbork.pl