code: def add_cmdline_args(
      cls, parser: ParlaiParser, partial_opt: Optional[Opt] = None
  ) -> ParlaiParser:
      super().add_cmdline_args(parser, partial_opt)
      parser = parser.add_argument_group("DNLI Teacher Args")
      parser.add_argument(
          "-dfm",
          "--dialog-format",
          type="bool",
          default=False,
          help="True if one would like to convert to a dialogue format without special tokens such as 'Premise'"
          " and 'Hypothesis' (default: False).",
      )
      parser.add_argument(
          "-bcl",
          "--binary-classes",
          type="bool",
          default=False,
          help="True if label candidates are (contradiction, not_contradiction), and (entailment, contradiction, "
          "neutral) otherwise (default: False).",
      )
      return parser
  
imports: from typing import Optional
  from parlai.core.params import ParlaiParser
  from parlai.core.opt import Opt
  import json
  import os
  from parlai.core.message import Message
  from parlai.core.teachers import FixedDialogTeacher
  from .build import build
  from parlai.tasks.multinli.agents import convert_to_dialogData
  from parlai.utils.io import PathManager
label_desc: Use image node_id 1 for calling the DialogueNliTeacher obj's underlying member method code with example usage: obj.add_cmdline_args(cls, parser, partial_opt) and returns: parser