code: def __init__(self, missing_func):
      self.missing_func = missing_func
  
file_path: catboost/contrib/python/fonttools/fontTools/cffLib/width.py
imports: from fontTools.ttLib import TTFont
  from collections import defaultdict
  from operator import add
  from functools import reduce
label_desc: Use image node_id 1 to create a new missingdict object from inherited base classes: dict with example: obj = missingdict(missing_func)