code: def get_memory_decision_task_mutator(opt: Opt) -> str:
      """
      Set the mutators appropriately for the memory decision tasks.
      """
      mutators = "+".join(
          [
              "memory_decision_mutator",
              "skip_retrieval_mutator",
              "prompt_memory_decision_mutator",
          ]
      )
      if opt.get("mutators"):
          mutators = "+".join([mutators, opt["mutators"]])
      logging.warning(f"overriding mutators to {mutators}")
      return mutators
  
imports: import random
  from typing import List, Tuple
  from parlai.core.opt import Opt
  import parlai.tasks.convai2.agents
  import parlai.tasks.blended_skill_talk.agents
  import parlai.tasks.empathetic_dialogues.agents
  import parlai.tasks.msc.agents
  import parlai.tasks.wizard_of_wikipedia.agents
  import parlai.utils.logging
  import projects.bb3.constants
  from projects.bb3.tasks.module_level_tasks import BB3TeacherMixin
  from projects.seeker.tasks.search_decision import WoiSearchDecisionTeacher, SquadSearchDecisionTeacher, TriviaQASearchDecisionTeacher, NQSearchDecisionTeacher, Convai2SearchDecisionTeacher, EDSearchDecisionTeacher, MSCSearchDecisionTeacher
label_desc: Use image node_id 1 for calling a global function with example usage: get_memory_decision_task_mutator(opt) and returns: mutators