code: def clear_cache():
      global apps
      apps.clear()
  
file_path: MONAILabel/monailabel/interfaces/utils/app.py
imports: import argparse
  import json
  import logging
  import os
  from typing import Any, Dict
  from monailabel.config import settings
  from monailabel.interfaces.exception import MONAILabelError, MONAILabelException
  from monailabel.utils.others.class_utils import get_class_of_subclass_from_file
label_desc: Use image node_id 2 for calling a global function with example usage: clear_cache() without return types