* Add BaseBackupManager as a common interface for backup managers
* Document the key
* Update homeassistant/components/backup/manager.py
Co-authored-by: Martin Hjelmare <marhje52@gmail.com>
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Co-authored-by: Martin Hjelmare <marhje52@gmail.com>
Co-authored-by: Sid <27780930+autinerd@users.noreply.github.com>
Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
Co-authored-by: J. Nick Koston <nick@koston.org>