code: def __init__(self, opt, shared=None):
      opt = copy.deepcopy(opt)
      self.fold = DatatypeHelper.fold(opt["datatype"])
      build(opt)
      opt["datafile"] = _path(opt, self.fold + ".txt")
      super().__init__(opt, shared)
  
file_path: ParlAI/parlai/tasks/cornell_movie/agents.py
imports: from parlai.core.teachers import DialogTeacher
  from .build import build
  from parlai.utils.data import DatatypeHelper
  import copy
  import os
  import codecs
label_desc: Use image node_id 1 to create a new DefaultTeacher object from inherited base classes: DialogTeacher with example: obj = DefaultTeacher(opt, shared)