code: def __init__(self, opt, shared=None):
      opt = copy.deepcopy(opt)
      self.datatype = opt["datatype"]
      test_type = opt.get("test_type", "vanilla")
  
      data_path = _path(opt, test_type)
      opt["datafile"] = data_path
  
      self.id = "decode"
      # this can pass in other arguments.
      # self.dialog_format = opt.get('dialog_format', False)
      super().__init__(opt, shared)
  
file_path: ParlAI/parlai/tasks/decode/agents.py
imports: import copy
  import json
  import os
  from parlai.utils.io import PathManager
  from parlai.core.teachers import DialogTeacher
  from .build import build, DECODE, DECODE_PREFIX, DECODE_FOLDER_VERSION
label_desc: Use image node_id 2 to create a new DecodeTeacher object from inherited base classes: DialogTeacher with example: obj = DecodeTeacher(opt, shared)