code: def is_group(self, config_path: str) -> bool:
      ...
  
imports: import re
  from abc import abstractmethod
  from dataclasses import dataclass
  from typing import Dict, List, Optional
  from omegaconf import Container
  from hydra import version
  from hydra._internal.deprecation_warning import deprecation_warning
  from hydra.core.default_element import InputDefault
  from hydra.core.object_type import ObjectType
  from hydra.errors import HydraException
  from hydra.plugins.plugin import Plugin
label_desc: Use image node_id 5 for calling the ConfigSource obj's underlying member method code with example usage: obj.is_group(config_path) without return types