gistfile1.scss

// Instead of doing this
@mixin svg-after($name) {
    &:after {
        @include svg($name);
    }
}

@mixin svg-before($name) {
    &:before {
        @include svg($name);
    }
}

// Can I do something like 
@mixin svg($name, $position: false) {
    @if($position!=false) {
        &:before {   
    }
    // Rest of mixin
    
    @if($position!=false) {
        }
    }
}