Nette\Forms\ControlGroup::getOption PHP Метод

    public function getOption($key, $default = NULL)
    {
        return isset($this->options[$key]) ? $this->options[$key] : $default;
    }

 /**
  * @internal
  * @param \Nette\Forms\ControlGroup $group
  * @return object
  */
 public function processGroup(\Nette\Forms\ControlGroup $group)
 {
     if (!$group->getOption('visual') || !$group->getControls()) {
         return NULL;
     }
     $groupLabel = $group->getOption('label');
     $groupDescription = $group->getOption('description');
     // If we have translator, translate!
     if ($translator = $this->form->getTranslator()) {
         if (!$groupLabel instanceof Html) {
             $groupLabel = $translator->translate($groupLabel);
         }
         if (!$groupDescription instanceof Html) {
             $groupDescription = $translator->translate($groupDescription);
         }
     }
     $controls = array_filter($group->getControls(), function (Controls\BaseControl $control) {
         return !$control->getOption('rendered') && !$control instanceof Controls\HiddenField;
     });
     if (!$controls) {
         return NULL;
         // do not render empty groups
     }
     $groupAttrs = $group->getOption('container', Html::el())->setName(NULL);
     /** @var Html $groupAttrs */
     $groupAttrs->attrs += array_diff_key($group->getOptions(), array_fill_keys(array('container', 'label', 'description', 'visual', 'template'), NULL));
     // fake group
     return (object) (array('controls' => $controls, 'label' => $groupLabel, 'description' => $groupDescription, 'attrs' => $groupAttrs) + $group->getOptions());
 }