code: def __init__(self, cache=None, cache_by=None, expire=None):
      super().__init__(cache=cache, cache_by=cache_by, expire=expire)
      self.running_jobs = []
  
file_path: dash/tests/integration/long_callback/utils.py
imports: import os
  import shutil
  import subprocess
  import tempfile
  import time
  from contextlib import contextmanager
  import psutil
  import redis
  from dash.long_callback import DiskcacheManager
label_desc: Use image node_id 1 to create a new TestDiskCacheManager object from inherited base classes: DiskcacheManager with example: obj = TestDiskCacheManager(cache, cache_by, expire)