model.addChild(parameter);
model.addChild(dynamics);
model.addChild(functionNode);
SerializeTreeVisitor visitor = new SerializeTreeVisitor();
model.apply(visitor);
String serialized = "{" + visitor.getSerializedTree() + "}";
System.out.println(serialized);
Gson gson = new GsonBuilder().setPrettyPrinting().create();
JsonParser jp = new JsonParser();