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public static ArrayList getVarDec(String id){        Iterator<VarSymbol> iterator = variables.iterator();        ArrayList returnvars = new ArrayList();        while (iterator.hasNext()){            VarSymbol sym = iterator.next();            VarDec var = sym.getVarDec();            if ( var.elemento.Id == id ){                returnvars.add(var);            }        }        return returnvars;    }