How to use the mackup.constants.MACKUP_APP_NAME function in mackup

# Uninstall the apps except Mackup, which we'll uninstall last, to
            # keep the settings as long as possible
            app_names = mckp.get_apps_to_backup()
            app_names.discard(MACKUP_APP_NAME)

            for app_name in sorted(app_names):
                app = ApplicationProfile(
                    mckp, app_db.get_files(app_name), dry_run, verbose
                )
                printAppHeader(app_name)
                app.uninstall()

            # Restore the Mackup config before any other config, as we might
            # need it to know about custom settings
            mackup_app = ApplicationProfile(
                mckp, app_db.get_files(MACKUP_APP_NAME), dry_run, verbose
            )
            mackup_app.uninstall()

            # Delete the Mackup folder in Dropbox
            # Don't delete this as there might be other Macs that aren't
            # uninstalled yet
            # delete(mckp.mackup_folder)

            print(
                "\n"
                "All your files have been put back into place. You can now"
                " safely uninstall Mackup.\n"
                "\n"
                "Thanks for using Mackup !"
            )

mckp.check_for_usable_backup_env()

        # Backup each application
        for app_name in sorted(mckp.get_apps_to_backup()):
            app = ApplicationProfile(mckp, app_db.get_files(app_name), dry_run, verbose)
            printAppHeader(app_name)
            app.backup()

    elif args["restore"]:
        # Check the env where the command is being run
        mckp.check_for_usable_restore_env()

        # Restore the Mackup config before any other config, as we might need
        # it to know about custom settings
        mackup_app = ApplicationProfile(
            mckp, app_db.get_files(MACKUP_APP_NAME), dry_run, verbose
        )
        printAppHeader(MACKUP_APP_NAME)
        mackup_app.restore()

        # Initialize again the apps db, as the Mackup config might have changed
        # it
        mckp = Mackup()
        app_db = ApplicationsDatabase()

        # Restore the rest of the app configs, using the restored Mackup config
        app_names = mckp.get_apps_to_backup()
        # Mackup has already been done
        app_names.discard(MACKUP_APP_NAME)

        for app_name in sorted(app_names):
            app = ApplicationProfile(mckp, app_db.get_files(app_name), dry_run, verbose)

# Backup each application
        for app_name in sorted(mckp.get_apps_to_backup()):
            app = ApplicationProfile(mckp, app_db.get_files(app_name), dry_run, verbose)
            printAppHeader(app_name)
            app.backup()

    elif args["restore"]:
        # Check the env where the command is being run
        mckp.check_for_usable_restore_env()

        # Restore the Mackup config before any other config, as we might need
        # it to know about custom settings
        mackup_app = ApplicationProfile(
            mckp, app_db.get_files(MACKUP_APP_NAME), dry_run, verbose
        )
        printAppHeader(MACKUP_APP_NAME)
        mackup_app.restore()

        # Initialize again the apps db, as the Mackup config might have changed
        # it
        mckp = Mackup()
        app_db = ApplicationsDatabase()

        # Restore the rest of the app configs, using the restored Mackup config
        app_names = mckp.get_apps_to_backup()
        # Mackup has already been done
        app_names.discard(MACKUP_APP_NAME)

        for app_name in sorted(app_names):
            app = ApplicationProfile(mckp, app_db.get_files(app_name), dry_run, verbose)
            printAppHeader(app_name)
            app.restore()

# it to know about custom settings
        mackup_app = ApplicationProfile(
            mckp, app_db.get_files(MACKUP_APP_NAME), dry_run, verbose
        )
        printAppHeader(MACKUP_APP_NAME)
        mackup_app.restore()

        # Initialize again the apps db, as the Mackup config might have changed
        # it
        mckp = Mackup()
        app_db = ApplicationsDatabase()

        # Restore the rest of the app configs, using the restored Mackup config
        app_names = mckp.get_apps_to_backup()
        # Mackup has already been done
        app_names.discard(MACKUP_APP_NAME)

        for app_name in sorted(app_names):
            app = ApplicationProfile(mckp, app_db.get_files(app_name), dry_run, verbose)
            printAppHeader(app_name)
            app.restore()

    elif args["uninstall"]:
        # Check the env where the command is being run
        mckp.check_for_usable_restore_env()

        if dry_run or (
            utils.confirm(
                "You are going to uninstall Mackup.\n"
                "Every configuration file, setting and dotfile"
                " managed by Mackup will be unlinked and moved back"
                " to their original place, in your home folder.\n"