Does SASS support adding !important to all properties in a mixin?

I am currently using the compass framework and all it's helpful CSS3 mixins. I would like to use the `border-radius(5px)` mixin and have all properties that come from it marked with `!important` In LESS it is possible to apply `!important` to all properties in a mixin by simply specifying it after call ``` .myMixin(@x) { border-radius: @x; -moz-border-radius: @x; } .myClass { .myMixin(5px) !important; } ``` compiles to ``` .myClass { border-radius: 5px !important; -moz-border-radius: 5px !important; } ``` Is this possible in SASS, or will I have to rewrite the mixins with an important parameter? ``` @mixin my-border-radius($value, $important: false) { border-radius: @value if($important, !important, null); .... } ```