docs: def decode(data, encoding='utf-8', errors='strict'):
      """We need to convert a dictionary where keys and values
      are bytes, to unicode strings.  This happens when a
      Python 2 worker sends a dictionary back to a Python 3 master.
      """
      data_type = type(data)
  
      if data_type == bytes:
          return bytes2unicode(data, encoding, errors)
      if data_type in (dict, list, tuple):
          if data_type == dict:
              data = data.items()
          return data_type(map(decode, data))
      return data