/// <reference types="node" />
import { DigestOptions, SupportedEncoding } from "./encode";
import { HashAlgorithm, initHashClasses } from "./hash";
export declare const DEFAULT_ALGORITHM: string;
export declare const DEFAULT_ENCODING = "base52";
export declare const DEFAULT_MAX_LENGTH = 8;
export declare type HashOptions = DigestOptions & {
    algorithm?: HashAlgorithm;
};
export declare class Hasher {
    private hasher;
    private algorithm;
    private encoding;
    private maxLength;
    constructor(options?: HashOptions);
    update(data: string | Buffer): Hasher;
    digest(encoding?: SupportedEncoding, maxLength?: number): string;
}
/**
 * Get hash from file
 *
 * @param fileName Filename of file to hash
 */
export declare function getHash(fileName: string, options?: HashOptions): Promise<string>;
/**
 * Get new filename based upon hash and extension of file
 *
 * @param fileName Filename of file to hash
 */
export declare function getHashedName(fileName: string, options?: HashOptions): Promise<string>;
export { initHashClasses };