new_contents: from collections import namedtuple
  from bunch import Bunch
  
  
  class ChargehoundObject(Bunch):
      pass
  
  
  class List(ChargehoundObject):
      pass
  
  
  class Dispute(ChargehoundObject):
      pass
  
  
  class Product(ChargehoundObject):
      pass
  
  
  Response = namedtuple('Response', 'status')
  
subject: Add missing file