class_docstr: Bleu scorer.
class_docstr_tok: ["Bleu","scorer","."]
code: def recompute_score(self, option=None, verbose=0):
      self._score = None
      return self.compute_score(option, verbose)
  
imports: import copy
  import math
  from builtins import dict, range
  from collections import defaultdict
label_desc: Use image node_id 16 for calling the BleuScorer obj's underlying member method code with example usage: obj.recompute_score(option, verbose) and returns: self