firebase select where undefined code example

Example: Undefined index: bathroomId (View: firebase

do {
            $response = $this->client->downloadAccount($batchSize, $pageToken);
            $result = JSON::decode((string)$response->getBody(), true);
 
                foreach ((array)$result['users'] as $userData) {
                    yield UserRecord::fromResponseData($userData);
 
                    if (++$count === $maxResults) {
                        return;
                    }
                }
            $pageToken = $result['nextPageToken'] ?? null;
        } while ($pageToken);