freeableSizeBytes property
The number of bytes that will be freed by deleting this backup.
This value will be zero if, for example, this backup is part of an incremental backup chain and younger backups in the chain require that we keep its data. For backups not in an incremental backup chain, this is always the size of the backup. This value may change if backups on the same chain get created, deleted or expired.
Output only.
Implementation
core.String? freeableSizeBytes;