backup_to_dir backups rotation

[Tarasovych]

• Version: 7.7.0 (docker.elastic.co/logstash/logstash-oss:7.7.0)
• Operating System: Ubuntu 18.04
• Config File (if you have sensitive info, please remove it):

  http.host: "0.0.0.0"

I'm using backup_to_dir for my inputs, is it possible to set up backups rotation somehow?

I mean, I can (1) manually clear backup files, (2) set up cron job, but maybe there are some built-in options?

Thank you in advance!