new_contents: # Copyright (c) ZOZO Technologies, Inc. All rights reserved.
  # Licensed under the Apache 2.0 License.
  
  """Types."""
  from typing import Union, Dict
  import numpy as np
  
  from .policy import BaseContextFreePolicy, BaseContextualPolicy
  
  # dataset
  BanditFeedback = Dict[str, Union[str, np.ndarray]]
  
  # policy
  BanditPolicy = Union[BaseContextFreePolicy, BaseContextualPolicy]
  
subject: add types.py