MongoHybrid\Mongo::findOne PHP Method

    public function findOne($collection, $filter = [], $projection = [])
    {
        if (isset($filter["_id"]) && is_string($filter["_id"])) {
            $filter["_id"] = new \MongoId($filter["_id"]);
        }
        $doc = $this->getCollection($collection)->findOne($filter, $projection);
        if (isset($doc["_id"])) {
            $doc["_id"] = (string) $doc["_id"];
        }
        return $doc;
    }