I am aware of that you can declare a class :
.someclass { ... }
And then extend it
.otherclass { &:extend(.someclass all) }
But does the .someclass really has to be declared ?
In my case only callers will apply the logic and there is no need for someclass to have the logic declared as well, as it is only a placeholder for similar css.
It would be nice if there was a &:extend(groupingFunction all) .
But maybe there is already?