docs: public void marshall(Snapshot snapshot, ProtocolMarshaller protocolMarshaller) {
  
          if (snapshot == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(snapshot.getDirectoryId(), DIRECTORYID_BINDING);
              protocolMarshaller.marshall(snapshot.getSnapshotId(), SNAPSHOTID_BINDING);
              protocolMarshaller.marshall(snapshot.getType(), TYPE_BINDING);
              protocolMarshaller.marshall(snapshot.getName(), NAME_BINDING);
              protocolMarshaller.marshall(snapshot.getStatus(), STATUS_BINDING);
              protocolMarshaller.marshall(snapshot.getStartTime(), STARTTIME_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }