title, $this->buildParams(), $this->buildChildren()); } public function stacked($isStacked = true): self { $this->params['stacked'] = $isStacked; return $this; } public function fieldset($wantsFieldset = true): self { $this->params['fieldset'] = $wantsFieldset; return $this; } public function fullWidth(): self { $this->params['fullWidth'] = true; return $this; } }