code: def get_dynamic_workers(self) -> Set[str]:
      return self._dynamic_workers
  
imports: import asyncio
  import importlib
  import logging
  import random
  import time
  from abc import ABC, abstractmethod
  from collections import defaultdict
  from typing import List, Set, Dict, Optional, Any
  from ....None import oscar
  from ....typing import BandType
  from ....lib.aio import alru_cache
  from ...cluster.api import ClusterAPI
  from ...cluster.core import NodeRole, NodeStatus
  from ..errors import NoAvailableBand
label_desc: Use image node_id 2 for calling the AutoscalerActor obj's underlying member method code with example usage: obj.get_dynamic_workers() and returns: self