@next/font/dist/types.d.ts

`@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.

export type CssVariable = `--${string}`;
export type Display = 'auto' | 'block' | 'swap' | 'fallback' | 'optional';
export type NextFont = {
    className: string;
    style: {
        fontFamily: string;
        fontWeight?: number;
        fontStyle?: string;
    };
};
export type NextFontWithVariable = NextFont & {
    variable: string;
};