code: def save(self, configs: Dict):
      raise NotImplementedError
  
imports: from pathlib import Path
  from typing import Dict, Union, Optional, List
  from labml.internal import util
  from .base import Configs
  from .utils import Value
label_desc: Use image node_id 1 for calling the ConfigsSaver obj's underlying member method code with example usage: obj.save(configs) without return types