code: def cleanup_config(config):
      """Delete meta-keys from the config file."""
      cleanup_keys = [REPLACE_KEY]
      for cleanup_key in cleanup_keys:
          config.pop(cleanup_key, None)
  
      for config_key in config:
          if isinstance(config[config_key], dict):
              cleanup_config(config[config_key])
  
      return config
  
file_path: luminoth/luminoth/utils/config.py
imports: import inspect
  import os.path
  import tensorflow
  import yaml
  from easydict import EasyDict
  from luminoth.models import get_model
label_desc: Use image node_id 12 for calling a global function with example usage: cleanup_config(config) and returns: config