Bidet Toto deck mount rim holes

I purchased a Toto Piedmont BT500AR deck mounted bidet. There's a hole on the underside of the deck which appears to connect to the flushing rim holes. What kind a faucet will allow the flushing option to function? I cant find anything on the net or the supply housed around here.
thanks

Spec sheet

Any standard single hole deck mount bidet faucet will work.
It seems many manufactures make them. Here are a few that I found using a quick web search.
But are you sure you have the flushing rim with the BT500AR?
I see on the spec sheet that the BT500B has that.


K-10088-9 by Kohler


Hans Grohe Axor Uno


K-14434-4 by Kohler

yes that's what got me, the specs show it as a deck mount.
There's a small hole on the underside of the deck to the left of the faucet hole, the hole doesn't extend to the top of the deck, it just routes thru the rim to the flushing holes.
I think I'm going to exchange if for a Pacifica model, (Pacifica has no rim holes at all).



Kohler Bidet