* @throws XMLStreamException
*/
public static void main(String[] args) throws XMLStreamException,
SBMLException {
SBMLDocument doc = new SBMLDocument(2, 4);
doc.addTreeNodeChangeListener(new SimpleTreeNodeChangeListener());
Model model = doc.createModel("test_model");
Parameter k1 = model.createParameter("k1");
Parameter k2 = model.createParameter("k2");