code: def hash_none(obj: NoneType = None) -> int:
      """Hash None values."""
      # We hard-code the hash value of None
      return _HASH_NONE
  
file_path: aim/aim/storage/hashing/hashing.py
imports: import hashlib
  from aim.storage.encoding import encode_int64, decode_int64
  from aim.storage.hashing import c_hash
  from aim.storage.types import AimObject, AimObjectArray, AimObjectKey, AimObjectDict, NoneType
  from typing import Tuple, Union
label_desc: Use image node_id 1 for calling a global function with example usage: hash_none(obj) and returns: _HASH_NONE