The current documentation for Importing a cluster doesn't mention BMH and Agent resources, as it wasn't supported prior to this effort. As part of this epic, the docs should now mention that these resources can be included. Useful for the use-case of importing a cluster with BMHs from another ACM env.

For more details see:

• Enhancement: https://github.com/danielerez/assisted-service/blob/enhancement_backup_restore/docs/enhancements/backup-restore-support.md
• Backup/restore improvement epic: https://issues.redhat.com/browse/MGMT-18589