def METHOD_NAME():
    args = get_arguments()
    if not os.path.isfile(args.changelog_file):
        print("Could not find file {parser.changelog_file}")
        return
    parser = ChangeLogParser(args.changelog_file, args.version)
    parser.parse()
    composer = ReleaseComposer(output_file_name=args.output_file)
    composer\
        .with_version(parser.version)\
        .with_changes(parser.changes)\
        .with_users(parser.users)\
        .write()