leaves := make([]struct {
		objects uint64
		path    dataUsageHash
	}, total)
	// Collect current leaves that have children.
	leaves = leaves[:0]
	remove := total - limit
	var add func(path dataUsageHash)
	add = func(path dataUsageHash) {
		e, ok := d.Cache[path.Key()]
		if !ok {
			return
		}
		if len(e.Children) == 0 {
			return
		}

					scannerLogIf(ctx, fmt.Errorf("%w, Object %s", err, dataUsageBloomNamePath))
				}
			}
		}
	}
}

type cachedFolder struct {
	name              string
	parent            *dataUsageHash
	objectHealProbDiv uint32
}

type folderScanner struct {
	root        string
	getSize     getSizeFn
	oldCache    dataUsageCache
	newCache    dataUsageCache
	updateCache dataUsageCache