docs: @Override
    public Deferred<Object> persist() {
      final byte[] q = Arrays.copyOfRange(batched_qualifier, 0, qualifier_index);
      final byte[] v = Arrays.copyOfRange(batched_value, 0, value_index);
      final byte[] r = Arrays.copyOfRange(row_key, 0, row_key.length);
      final long base_time = this.base_time; // shadow fixes issue #1436
      System.out.println(Arrays.toString(q) + "  " + Arrays.toString(v) + "  " + Arrays.toString(r));
      reset();
      return tsdb.put(r, q, v, base_time);
    }