code: def __init__(self) -> None:
      self.is_circleci_job = os.getenv("IS_CIRCLECI_JOB")
      self.dc = None
      return
  
imports: import os
  import subprocess
  import time
  from shlex import split
  from typing import Any, Iterator
  import pytest
  from tests import config
  from .abstract_cluster import Cluster
  from .utils import now_ts
label_desc: Use image node_id 1 to create a new ManagedSlurmCluster object from inherited base classes: Cluster with example: obj = ManagedSlurmCluster()