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@next/font

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`@next/font` includes built-in automatic self-hosting for any font file. This means you can optimally load web fonts with zero layout shift, thanks to the underlying CSS size-adjust property used.

github.com/vercel/next.js

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/** * Fetches the CSS containing the @font-face declarations from Google Fonts. * The fetch has a user agent header with a modern browser to ensure we'll get .woff2 files. * * The env variable NEXT_FONT_GOOGLE_MOCKED_RESPONSES may be set containing a path to mocked data. * It's used to define mocked data to avoid hitting the Google Fonts API during tests. */ export declare function fetchCSSFromGoogleFonts(url: string, fontFamily: string, isDev: boolean): Promise<string>;