Cannot find name 'defineI18nLocaleDetector'

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Environment

I am following this guide step by step:
https://i18n.nuxtjs.org/docs/guide/server-side-translations

i18n/localeDetector.ts
export default defineI18nLocaleDetector((event: any, config: any) => {
  return "se";

  // If the locale cannot be resolved up to this point, it is resolved with the value `defaultLocale` of the locale config passed to the function
  return config.defaultLocale;
});

Error in my IDE:

Cannot find name 'defineI18nLocaleDetector'. Did you mean 'defineI18nLocale'?ts(2552)
imports.d.ts(20, 9): 'defineI18nLocale' is declared here.

Config is set:

export default defineNuxtConfig({
  i18n: {
    experimental: {
      localeDetector: 'localeDetector.ts'
    }
  }
})

I click details link: https://i18n.nuxtjs.org/docs/api#definei18nlocaledetector

And it is empty.

Reproduction

Here: https://i18n.nuxtjs.org/docs/guide/server-side-translations

Describe the bug

Cannot find name 'defineI18nLocaleDetector'. Did you mean 'defineI18nLocale'?ts(2552)
imports.d.ts(20, 9): 'defineI18nLocale' is declared here.

Additional context

No response

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