def METHOD_NAME():
    usage = "usage: %prog [options]"
    parser = OptionParser(usage=usage)
    parser.add_option("--enable-centos", dest="centos", default=False,
                      action="store_true", help="Enable CentOS")
    parser.add_option("--enable-sl", dest="sl", default=False,
                      action="store_true", help="Enable Scientific Linux")
    parser.add_option("-i", "--input", dest="input_content", default=False,
                      action="store",
                      help="INPUT can be XCCDF or Source DataStream")
    parser.add_option("-o", "--output", dest="output", default=False,
                      action="store", help="XML Tree content")
    parser.add_option("--id-name", dest="id_name", default="ssg",
                      action="store", help="ID naming scheme")
    parser.add_option(
        "--cpe-items-dir",
        dest="cpe_items_dir", help="path to the directory where compiled cpe items are stored")
    (options, args) = parser.METHOD_NAME()
    if options.centos and options.sl:
        sys.stderr.write(
            "Cannot enable two derivative OS(s) at the same time\n"
        )
        parser.print_help()
        sys.exit(1)
    if not options.output and not options.input_content:
        parser.print_help()
        sys.exit(1)
    return options, args