java.util.Map<String, TemplateDescriptor> getUpdates() {
   java.util.Map<String, TemplateDescriptor> updates = new java.util.HashMap<>();
   for (TreeNodeBase p : _children) {
     ServiceTemplate t = (ServiceTemplate) p;
     if (t.getEditable().isNew() || t.getEditable().isModified()) {
       updates.put(t.getId(), (TemplateDescriptor) t.getDescriptor());
     }
   }
   return updates;
 }