code: @Override
      public Date setDatastreamVersionable(Context context,
                                           String pid,
                                           String dsID,
                                           boolean versionable,
                                           String logMessage)
              throws ServerException {
          return mgmt.setDatastreamVersionable(context,
                                               pid,
                                               dsID,
                                               versionable,
                                               logMessage);
      }
docs: {@inheritDoc}