LMongo\Query\Builder::batchInsert PHP Method

    public function batchInsert($data)
    {
        if (!is_array(reset($data))) {
            $data = array($data);
        }
        $result = $this->connection->{$this->collection}->batchInsert($data);
        if (1 == (int) $result['ok']) {
            return array_map(function ($document) {
                return $document['_id'];
            }, $data);
        }
        return false;
    }