interface ICodePointSet {
    add(codePoint: number): void;
    has(codePoint: number): boolean;
    serialize(): string;
    deserialize(string: string): void;
}
/*
Build: 0.013251333964576603
Query: 0.652602325533038
*/
declare class CodePointSet implements ICodePointSet {
    private buckets;
    add(codePoint: number): void;
    has(codePoint: number): boolean;
    serialize(): string;
    deserialize(str: string): void;
}
type FontStyle = "normal" | "italic";
type FontCategory = "sans-serif" | "serif" | "monospace";
type ClientOptions = {
    lang?: string;
    category?: FontCategory;
    style?: FontStyle;
    weight?: number;
    dataUrl?: string;
};
type Result = {
    fontUrls: string[];
    chars: Uint8Array;
};
declare function getFontsForString(textString: string, options?: ClientOptions): Promise<Result>;
declare function clearCache(): void;
export { ClientOptions, getFontsForString, clearCache, CodePointSet };