class_docstr: Concrete WorkerLauncher implementation for launching hyperopt workers in a round robin manner.
  
  See the `WorkerLauncher` documentation to get a list of the inherited methods and attributes.
docstr: Release all resources.
docstr_tok: ["Release","all","resources","."]
code: def cleanup(self) -> None:
      """Release all resources."""
      self.log.info("Cleanup the RoundRobinLauncher ...")
      super().cleanup()
  
imports: import os
  import time
  from typing import List, Optional, Union
  from lazycluster import Runtime, RuntimeGroup, RuntimeTask, _utils
  from lazycluster.cluster import MasterLauncher, MasterWorkerCluster, WorkerLauncher
  from lazycluster.cluster.exceptions import MasterStartError
  from lazycluster.exceptions import PortInUseError
  from lazycluster.utils import Environment
label_desc: Use image node_id 5 for calling the RoundRobinLauncher obj's underlying member method code with example usage: obj.cleanup() without return types