// ----
// Sass (v3.4.12)
// Compass (v1.0.3)
// ----

@function some-function($some-number:10, $another-number:5){
  @return $some-number + $another-number
}

.some-class {
  padding: some-function();
}

.another-class {
  padding: some-function(20,40);
}