class_docstr: CIDEr scorer.
class_docstr_tok: ["CIDEr","scorer","."]
code: def size(self):
      assert len(self.crefs) == len(
          self.ctest
      ), "refs/test mismatch! %d<>%d" % (
          len(self.crefs),
          len(self.ctest),
      )
      return len(self.crefs)
  
file_path: graph4nlp/graph4nlp/pytorch/modules/evaluation/cider_tool/cider_scorer.py
imports: import copy
  import math
  import os
  import sys
  from collections import defaultdict
  import numpy
label_desc: Use image node_id 4 for calling the CiderScorer obj's underlying member method code with example usage: obj.size() and returns: len