public function toArray()
    {
        return [
            'name'     => $this->getName(),
            'label'    => $this->getLabel(),
            'width'    => $this->getWidth(),
            'fixed'    => $this->isFixed(),
            'minWidth' => $this->getMinWidth(),
            'sortable' => $this->getSortable(),
            'type'     => $this->getType(),
        ];
    }