Hello, I'm trying to make fields in grafana (as shown in the picture), but I don't understand how I should form a log sending from python to loki. logger.info ('Test', extra={"tags": {"tag": 1}, "fields": {"field": 1}}) or...? <img width="736" alt="Screenshot 2022-06-23 at 15 15 05" src="https://user-images.githubusercontent.com/21565868/175296300-e61abc16-5548-4164-a147-091f5cfeb8d0.png">