code: @Override
      public IUpdater getUpdaterByParam(String paramName) {
          if (biasUpdater != null && initializer().isBiasParam(this, paramName)) {
              return biasUpdater;
          }
          return iUpdater;
      }
docs: Get the updater for the given parameter. Typically the same updater will be used for all updaters, but this is
  not necessarily the case
  
  @param paramName Parameter name
  @return IUpdater for the parameter