code: public StashReader getLockedView() {
          return new FixedStashReader(URI.create(String.format("s3://%s/%s", _bucket, getRootPath())), _s3);
      }
docs: Returns a new StashReader that is locked to the same stash time the instance is currently using.  Future calls to
  lock or unlock the stash time on this instance will not affect the returned instance.