code: def result_string(self, order=4):
      return self._score(order).format()
  
imports: import ctypes
  import math
  import sys
  from dataclasses import dataclass, field
  import torch
  from fairseq.dataclass import FairseqDataclass
  from fairseq.scoring import BaseScorer, register_scorer
  from fairseq.scoring.tokenizer import EvaluationTokenizer
label_desc: Use image node_id 5 for calling the SacrebleuScorer obj's underlying member method code with example usage: obj.result_string(order) and returns: self