import { FontDetails } from "../types/paywall";
export declare function prepareAndLoadFonts(fontsObject: {
    [key: string]: any;
}): Promise<FontFaceSet>;
export declare const loadFonts: (fonts: FontDetails[]) => Promise<FontFaceSet>;
export declare function buildFontFaceFamily(font: FontDetails): string;
export declare function sanitizeFontName(value: string): string;