code: def add_cmdline_args(
      cls, parser: ParlaiParser, partial_opt: Optional[Opt] = None
  ) -> ParlaiParser:
      super().add_cmdline_args(parser, partial_opt)
      agent = parser.add_argument_group("SaFeRDialogues options")
      agent.add_argument(
          "--recovery",
          type=bool,
          default=True,
          help="Whether or not to include the recovery utterance",
      )
      return parser
  
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 1 for calling the SaferDialoguesTeacher obj's underlying member method code with example usage: obj.add_cmdline_args(cls, parser, partial_opt) and returns: parser