docs: public void marshall(BackupJob backupJob, ProtocolMarshaller protocolMarshaller) {
  
          if (backupJob == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(backupJob.getBackupJobId(), BACKUPJOBID_BINDING);
              protocolMarshaller.marshall(backupJob.getBackupVaultName(), BACKUPVAULTNAME_BINDING);
              protocolMarshaller.marshall(backupJob.getBackupVaultArn(), BACKUPVAULTARN_BINDING);
              protocolMarshaller.marshall(backupJob.getRecoveryPointArn(), RECOVERYPOINTARN_BINDING);
              protocolMarshaller.marshall(backupJob.getResourceArn(), RESOURCEARN_BINDING);
              protocolMarshaller.marshall(backupJob.getCreationDate(), CREATIONDATE_BINDING);
              protocolMarshaller.marshall(backupJob.getCompletionDate(), COMPLETIONDATE_BINDING);
              protocolMarshaller.marshall(backupJob.getState(), STATE_BINDING);
              protocolMarshaller.marshall(backupJob.getStatusMessage(), STATUSMESSAGE_BINDING);
              protocolMarshaller.marshall(backupJob.getPercentDone(), PERCENTDONE_BINDING);
              protocolMarshaller.marshall(backupJob.getBackupSizeInBytes(), BACKUPSIZEINBYTES_BINDING);
              protocolMarshaller.marshall(backupJob.getIamRoleArn(), IAMROLEARN_BINDING);
              protocolMarshaller.marshall(backupJob.getCreatedBy(), CREATEDBY_BINDING);
              protocolMarshaller.marshall(backupJob.getExpectedCompletionDate(), EXPECTEDCOMPLETIONDATE_BINDING);
              protocolMarshaller.marshall(backupJob.getStartBy(), STARTBY_BINDING);
              protocolMarshaller.marshall(backupJob.getResourceType(), RESOURCETYPE_BINDING);
              protocolMarshaller.marshall(backupJob.getBytesTransferred(), BYTESTRANSFERRED_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }