class_docstr: Bleu Evaluator. Now, we support metrics `'bleu'`
      
code: def __init__(self, config):
      self.rouge_type = config["rouge_type"]
      self.rouge_max_ngrams = config["rouge_max_ngrams"]
      self.multiref_strategy = config["multiref_strategy"]
      super(RougeEvaluator, self).__init__(config)
  
file_path: TextBox/textbox/evaluator/rouge_evaluator.py
imports: import os
  import tempfile
  import logging
  import numpy
  from .abstract_evaluator import AbstractEvaluator
label_desc: Use image node_id 1 to create a new RougeEvaluator object from inherited base classes: AbstractEvaluator with example: obj = RougeEvaluator(config)