Nestable\Services\NestableService::setParameters PHP Метод

    protected function setParameters($args)
    {
        if (count($args) < 1) {
            return ['parent' => $this->parents ? current($this->parents) : 0, 'data' => $this->data];
        } elseif (count($args) == 1) {
            return ['parent' => reset($args), 'data' => $this->data];
        } else {
            return ['data' => reset($args), 'parent' => next($args)];
        }
    }