code: def __init__(self, opt, shared=None):
      opt = copy.deepcopy(opt)
      opt["parlaidialogteacher_datafile"] = _path(opt)
      super().__init__(opt, shared)
  
imports: from typing import Optional
  from parlai.core.params import ParlaiParser
  from parlai.core.opt import Opt
  import os
  import copy
  from parlai.core.teachers import ParlAIDialogTeacher
  from .build import build
label_desc: Use image node_id 2 to create a new SaferDialoguesTeacher object from inherited base classes: ParlAIDialogTeacher with example: obj = SaferDialoguesTeacher(opt, shared)