/// <reference types="node" />
import * as rlp from './rlp';
import { Buffer } from "buffer";
export declare const keccak: (a: number[] | Uint8Array | Buffer, bits?: number | undefined) => Buffer;
export declare const keccak256: (a: Buffer | Uint8Array) => Buffer;
export declare const keccakFromString: (a: string, bits?: number) => Buffer;
export declare const rlphash: (a: rlp.Input) => Buffer;