}
public void renderFieldGroupOpen(Appendable writer, Map<String, Object> context, ModelForm.FieldGroup fieldGroup) throws IOException {
String style = fieldGroup.getStyle();
String id = fieldGroup.getId();
FlexibleStringExpander titleNotExpanded = FlexibleStringExpander.getInstance(fieldGroup.getTitle());
String title = titleNotExpanded.expandString(context);
Boolean collapsed = fieldGroup.initiallyCollapsed();
String collapsibleAreaId = fieldGroup.getId() + "_body";
Boolean collapsible = fieldGroup.collapsible();
String expandToolTip = "";
String collapseToolTip = "";