Grafana AWS CloudWatch log monitoring and alarm

Please can you confirm if Grafana 7+ is capable to provide alarm notification for CloudWatch logs?
I can see requested data by using Query Mode “CloudWatch Logs” and using native CloudWatch query, for instance:
" fields @timestamp, @message
| sort @timestamp desc
| filter @message like ‘myPattern’
| filter eventName like ‘myEvent’
but I can not find a way to establish monitoring and alarm notification for “stats count([@message” by eventName like ‘myEvent’ " when I switch query mode to ‘CloudWatch Metrics’
I expected similar functionality as Grafana/Loki provides but may be I am wrong?