How to check radio in TV in ModX?

Question

MODX

How can I check an additional field for which radio button is selected in ModX Revo?

Tried to check like this

и
[[#2.tv.feedback.videoOrPhoto:is=`b`:then=`1`:else=`2`]]

, but it doesn’t work, it always gives out 2

In the TV parameters, I specified it like this:
Видео==a||Изображение==b

Answer 1

On phenom something like this:

<li class="product__meta-availability">Наличие: {if $_modx->resource.availability}<span class="text-success">под заказ</span>{else}<span class="text-success">в наличии</span>{/if}</li>

/ This is on the example of the presence of goods:
at the exit