How to pass different data for cards of the same type in pug mixin?

Question

Pug

Just starting to touch pug and need help.
I made a card template in a pug file, which I want to transfer using a mixin to another file with different data (additional class, picture and text data):

mixin masonry-card(ClassName, product)
  .masonry-card(class= ClassName)
    a.masonry-card__img-wrapper(href="#")
      img.masonry-card__img(src="img/" + product.img)
    .masonry-card__info
      a.masonry-card__title(href="#")= product.title
      a.masonry-card__author(href="#")= product.author
      span.masonry-card__type Картина,  80x60 см.
    .masonry-card__footer
      .masonry-card__price= product.price
        <span class="masonry-card__price-rub">7</span>
      .masonry-card__old-price= product.oldPrice

I'm trying to paste into another file like this:

include ../masonry-card/masonry-card
      +masonry-card('new-works__grid-item', {img: 'masonry-card-1.jpg', title: 'abc', author: 'author', price: '12348', oldPrice: '23456'})

It gives errors, something is wrong with the syntax. How to do it right so that it works? And if there are, say, 10 of these cards, how can I sort through them, giving similar data to each of them?
And one more question: let's say I want to selectively add some kind of div to some cards, how can this be done?

Answer 1

Not sure if your nesting level is correct, try placing the element at the same level as the include:

include ../masonry-card/masonry-card
+masonry-card('new-works__grid-item', {img: 'masonry-card-1.jpg', title: 'abc', author: 'author', price: '12348', oldPrice: '23456'})

Answer 2

When you pass an object, it must be in json format i.e. you need to take the keys in quotes