docs: def hxbyterle_decode(output_size, data):
      """Decode HxRLE data stream
      
      If C-extension is not compiled it will use a (slower) Python equivalent
      
      :param int output_size: the number of items when ``data`` is uncompressed
      :param str data: a raw stream of data to be unpacked
      :return numpy.array output: an array of ``numpy.uint8``
      """
      output = byterle_decoder(data, output_size)
      assert len(output) == output_size     
      return output