App\UIObjects\Form\Form::initTemplate PHP Method

    protected function initTemplate()
    {
        $args = $this->arguments;
        // style(type) = panel, fieldset
        $style = array_get($args, 'type', 'panel');
        if (array_get($args, 'action') === null) {
            if ($style === 'fieldset') {
                $this->template = '<div></div>';
            } else {
                $this->template = '<div class="panel-group"></div>';
            }
        } else {
            $this->template = '<form method="POST" enctype="multipart/form-data"></form>';
        }
    }