protected function prepareHeadersAndKeys($datatable)
    {
        $headers = [];
        $data    = [];
        $columns = $datatable->html()->getColumns();
        foreach ($columns as $column) {
            if ($column->data == 'action') {
                continue;
            }
            array_push($headers, $column->title);
            array_set($data, $column->data, 'get' . ucfirst($column->data) . 'Value');
        }
        return [$headers, $data];
    }