code: def __len__(self) -> int:
      return len(self.experiment)
  
imports: import logging
  import os
  import traceback
  from abc import ABCMeta, abstractmethod
  from pathlib import Path
  from typing import Any, Callable, Dict, List, Mapping, Type, Union
  import toml
  import yaml
label_desc: Use image node_id 12 for calling the ExperimentConfig obj's underlying member method code with example usage: obj.__len__() and returns: len