}
@Override
protected void marshalHeader(RuleModel model,
StringBuilder buf) {
TemplateModel templateModel = (TemplateModel) model;
buf.append("template header\n");
InterpolationVariable[] interpolationVariables = templateModel.getInterpolationVariablesList();
if (interpolationVariables.length == 0) {
buf.append("test_var").append('\n');
} else {
for (InterpolationVariable var : interpolationVariables) {
buf.append(var.getVarName()).append('\n');