import { BytesLike } from '@ckb-lumos/codec';
import { blockchain } from '@ckb-lumos/base';
type WitnessArgsObject = Parameters<(typeof blockchain.WitnessArgs)['pack']>[0];
type WitnessArgsKey = keyof WitnessArgsObject;
export declare const defaultEmptyWitnessArgs: string;
/**
 * Update a property value of a WitnessArgs (in hex).
 */
export declare function updateWitnessArgs(witness: string | undefined, key: WitnessArgsKey, value: BytesLike): string;
export {};