code: public RedwoodConfiguration collapseExact(){
      tasks.add(new Runnable() { public void run() { Redwood.spliceHandler(VisibilityHandler.class, new RepeatedRecordHandler(RepeatedRecordHandler.EXACT), OutputHandler.class); } });
      return this;
    }
docs: Collapse repeated records, using exact string match on the record.
  This is generally useful for making very verbose logs more readable.
  @return this