How to use the lastversion.utils.rpm_installed_version function in lastversion

res = [res]
            for url in res:
                log.info("Downloading {} ...".format(url))
                # there can be many assets, so we do not "rename" them
                # there can be only one source, so we allow passing custom filename for it
                download_file(url, args.download if args.format == 'source' else None)
            sys.exit(0)

        if args.action == 'install':
            rpms = [asset for asset in res['assets'] if asset.endswith('.rpm')]
            if not rpms:
                log.error('No assets found to install')
                sys.exit(1)
            # prevents downloading large packages if we already have newest installed
            # consult RPM database  for current version
            installed_version = rpm_installed_version(args.repo)
            if installed_version is False:
                log.warning('Please install lastversion using YUM or DNF so it can check current '
                            'program version. This is helpful to prevent unnecessary downloads')
            if installed_version and Version(installed_version) >= Version(res['version']):
                log.warning('Newest version {} is already installed'.format(installed_version))
                sys.exit(0)
            # pass RPM URLs directly to package management program
            try:
                import subprocess
                params = ['yum', 'install']
                params.extend(rpms)
                if args.assumeyes:
                    params.append('-y')
                subprocess.call(params)
            except OSError:
                log.critical('Failed to launch package manager. Only YUM/DNF is supported!')