public override LessNode VisitProperty(LessParser.PropertyContext context)
        {
            string name = context.identifier().GetText();

            var expr = (Expression)context.expression()?.Accept(this)
                       ?? (Expression)context.ieFilter()?.Accept(this);

            var important = context.IMPORTANT() != null;

            if (important)
            {
                return(new Rule(name, new ImportantExpression(expr)));
            }

            return(new Rule(name, expr));
        }
 public virtual LessNode VisitProperty(LessParser.PropertyContext context)
 {
     throw new System.NotImplementedException();
 }