If Attribute Exists in SASS

I'm trying to get something similar to this SASS code to work;

.alert-danger {
  @include alert-variant($alert-danger-bg, $alert-danger-border, $alert-danger-text);
  @include transition(ease-in-out, 95ms, all);
    @if data-interaction == true {
      &:hover,
      &:focus {
        @include alert-variant-interactive($alert-danger-bg, $alert-danger-border, $alert-danger-text); 
      }
    }
}

I can't find a good way to check "if" some attribute or class exists within .alert-danger, though. I would really like to keep the hover nested, instead of having to write extra blocks.

Right now I am using data-interaction="true" on the .alert-danger element.

Thanks in advance!