public override void ExitRule(IParseTreeListener listener)
            {
                IKScriptListener typedListener = listener as IKScriptListener;

                if (typedListener != null)
                {
                    typedListener.ExitList(this);
                }
            }
            public override void EnterRule(IParseTreeListener listener)
            {
                IKScriptListener typedListener = listener as IKScriptListener;

                if (typedListener != null)
                {
                    typedListener.EnterRelationalExpression(this);
                }
            }