/// <reference types="node" />
/**
 * Class that encodes binary blobs into strings.
 */
export default class Encoder {
    /**
     * Encodes given Buffer into a Base64URL string.
     */
    static encode(content: Buffer | string): string;
    /**
     * Decodes the given Base64URL string into a Buffer.
     */
    static decodeAsBuffer(encodedContent: string): Buffer;
    /**
     * Decodes the given Base64URL string into a string.
     */
    static decodeAsString(encodedContent: string): string;
}