export declare function weBtoa(string: string): string;
export declare const weAtob: (string: string) => string;
export declare function base64_url_decode(str: string): string;
export declare function weappJwtDecode(token: string, options?: any): any;
export declare function weAppJwtDecodeAll(token: string): {
    claims: any;
    header: any;
    signature: any;
};