def run(stream=sys.stdin.buffer):
    """Reads from stream, applying the LT decoding algorithm
    to incoming encoded blocks until sufficiently many blocks
    have been received to reconstruct the entire file.
    """
    payload = decode.decode(stream)
    sys.stdout.write(payload.decode('utf8'))
Reads from stream, applying the LT decoding algorithm
    to incoming encoded blocks until sufficiently many blocks
    have been received to reconstruct the entire file.