public override void GetData(object target, System.IO.Stream outgoingData)
 {
     var expression = target as Expression;
     var node = new Node(expression);
     var container = new EtContainer(node, expression.ToString());
     Serialize(outgoingData,container);
 }
 public EtContainer(Node node, string expression)
 {
     TreeNode = node;
        Expression = expression;
 }