{ return Set {}; } protected function getExtraJS(): Set { return Set {}; } final protected function getCSS(): Set { return (Set { '/css/base.css', })->addAll($this->getExtraCSS()); } final protected function getJS(): Set { return (Set { })->addAll($this->getExtraJS()); } final private function renderHeader(): :xhp { return

; } final protected function render(): :xhp { return

{$this->renderHeader()}

{$this->renderMainColumn()}

; } }