code: def _key_to_address(key):
      
      key_parts = key.split('.', maxsplit=_MAX_KEY_PARTS - 1)
      key_parts.extend([''] * (_MAX_KEY_PARTS - len(key_parts)))
  
      return SETTINGS_NAMESPACE + ''.join(_short_hash(x) for x in key_parts)
docs: Creates the state address for a given setting key.