How to implement a dynamic class through a mixin?

Question

Pug

I know mixins.
I'm trying to dynamically generate the
Input class for it to work:

var items = [
        {bg:'blue},
        {bg:'yellow'},
        {bg:'red'}
        ]

I call the mixin itself through the construction:

each item in items
            +item(item)

Mixin:

mixin item(item)
    .inform-items__item.inform-items__item_bg_${item.bg}

How to implement this functionality?

***
I know that there is an implementation by type

div(class=`inform-items__item inform-items__item_bg_${item.bg}`)

I want to know if there is another option?

Answer 1

mixin item(item)
  .inform-items__item(class=`inform-items__item_bg_${item.bg}`)