def hxbyterle_decode(output_size, data):
output = byterle_decoder(data, output_size)<EOL>assert len(output) == output_size     <EOL>return output<EOL>
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``