code: def __init__(self, opt, shared=None):
      mutators = "+".join(
          [
              "ms_marco_filter_has_answer",
              "ms_marco_create_fid_docs",
              "ms_marco_find_selected_sentence_for_response",
              "woi_pop_documents_mutator",
              "skip_retrieval_mutator",
          ]
      )
      if opt.get("mutators"):
          mutators = "+".join([mutators, opt["mutators"]])
      logging.warning(f"overriding mutators to {mutators}")
      opt["mutators"] = mutators
      super().__init__(opt, shared)
      self.id = "MsMarcoDialogueTeacher"
  
imports: from typing import Optional
  from parlai.core.opt import Opt
  from parlai.core.params import ParlaiParser
  from parlai.core.teachers import MultiTaskTeacher
  import parlai.tasks.convai2.agents
  import parlai.tasks.blended_skill_talk.agents
  import parlai.tasks.empathetic_dialogues.agents
  import parlai.tasks.wizard_of_internet.agents
  import parlai.tasks.wizard_of_wikipedia.agents
  import parlai.tasks.msc.agents
  import parlai.tasks.ms_marco.agents
  import parlai.utils.logging
  import projects.seeker.tasks.mutators
label_desc: Use image node_id 1 to create a new MsMarcoDialogueTeacher object from inherited base classes: ms_marco with example: obj = MsMarcoDialogueTeacher(opt, shared)