467   bool initialized_;  member in ROCKSDB_NAMESPACE::BackupEngineImpl
540     : initialized_(false),  in BackupEngineImpl()
570   assert(!initialized_);  in Initialize()
571   initialized_ = true;  in Initialize()
780   assert(initialized_);  in CreateNewBackupWithMetadata()
1005   assert(initialized_);  in PurgeOldBackups()
1055   assert(initialized_);  in DeleteBackupInternal()
1112   assert(initialized_);  in GetBackupInfo()
1126   assert(initialized_);  in GetCorruptedBackups()
1137   assert(initialized_);  in RestoreDBFromBackup()
1258   assert(initialized_);  in VerifyBackup()