code: def register(self, c):
      self.cleanups.insert(0, c)
  
imports: import re
  import os
  import sys
  from dataclasses import dataclass
  from typing import List, Optional, Tuple
  import pyopencl._cl
  import logging
  import hashlib
label_desc: Use image node_id 2 for calling the CleanupManager obj's underlying member method code with example usage: obj.register(c) without return types