export declare const decodeBase64Url: (str: string) => Uint8Array;
export declare const encodeBase64Url: (buf: ArrayBufferLike) => string;
export declare const encodeBase64: (buf: ArrayBufferLike) => string;
export declare const decodeBase64: (str: string) => Uint8Array;
export declare const encodeObjectBase64Url: (obj: any) => string;