def METHOD_NAME(src_dir, dest_dir):
    """Unpack output files from tarball in source directory and
       write them to destination directory
       This function is called by Ganga client at the completing of job.
       Complementary to createPacedOutput()
       Arguments:
                'src_dir': source directory with tarball
                'dest_dir': desti nation directory for output files
    """
    tgzfile = os.path.join(src_dir, OUTPUT_TARBALL_NAME)
    if os.access(tgzfile, os.F_OK):
        import tarfile
        try:
            tf = tarfile.open(tgzfile, "r:*")
        except tarfile.ReadError:
            logger.warning('Sandbox is empty or unreadable')
            return
        else:
            [tf.extractall(dest_dir, [tarinfo]) for tarinfo in tf]
            tf.close()