code: def __init__(self) -> None:
      self._search_spaces: List[Dict[str, BaseDistribution]] = []
  
file_path: optuna/optuna/search_space/group_decomposed.py
imports: import copy
  from typing import Dict
  from typing import List
  from typing import Optional
  from typing import Tuple
  from optuna.distributions import BaseDistribution
  from optuna.study import Study
  from optuna.trial import TrialState
label_desc: Use image node_id 1 to create a new _SearchSpaceGroup object  with example: obj = _SearchSpaceGroup()