Mixins attributes not supported #46

I tried to use the attribute parameter of mixins.
That parameter seems to not be supported.

I tried to use code like:

mixin listRow(name, link)
    tr&attributes(attributes)
        td= $name
        td= $link

+listRow("some name", "some-link.com")(hx-swap-oob="beforeend:#list-table")

It should create some html like:

<tr hx-swap-oob="beforeend:#list-table">
  <td>some name</td>
  <td>some-link.com</td>
</tr>

for the mixin I also tried

mixin listRow(name, link)
    tr&attributes($attributes)
        td= $name
        td= $link

but that did not work either.

Is there another way to implement this or are there plans to fix it?