Documentation issue: rollup config in intlify/rollup-plugin-vue-i18n

[devonik]

In the documentation there is a rollup config example and it uses const { default: i18n } = require('../lib/index') but what is ../lib/index ? If I try import VueI18nPlugin from "rollup-plugin-vue-i18n"; the build says that Cannot find module 'rollup-plugin-vue-i18n'