import type * as unifont from 'unifont';
import type { FontFileIdGenerator, FontTypeExtractor, UrlResolver } from '../definitions.js';
import type { ResolvedFontFamily } from '../types.js';
export declare function filterAndTransformFontFaces({ fonts, fontTypeExtractor, fontFileIdGenerator, urlResolver, family, }: {
    fonts: Array<unifont.FontFaceData>;
    fontTypeExtractor: FontTypeExtractor;
    fontFileIdGenerator: FontFileIdGenerator;
    urlResolver: UrlResolver;
    family: Pick<ResolvedFontFamily, 'cssVariable'>;
}): {
    src: (unifont.LocalFontSource | unifont.RemoteFontSource)[];
    display?: "auto" | "block" | "swap" | "fallback" | "optional";
    weight?: string | number | [number, number];
    stretch?: string;
    style?: string;
    unicodeRange?: string[];
    featureSettings?: string;
    variationSettings?: string;
    meta?: unifont.FontFaceMeta;
}[];