import * as utxolib from '@bitgo/utxo-lib';
import { Signable } from './signableJson';
/**
 * Verifies a signature for a given message.
 *
 * @param {Signable} message - The message to verify.
 * @param {string} signature - The signature to verify, in hexadecimal format.
 * @param {string} pub - The public key in BIP32 format.
 * @param {utxolib.Network} network - The network to use for verification.
 * @returns {boolean} - Returns true if the signature is valid, false otherwise.
 */
export declare function verifyMessageSignature(message: Signable, signature: string, pub: string, network?: utxolib.Network): boolean;
/**
 * Creates a signature for a given message.
 *
 * @param {Signable} message - The message to sign.
 * @param {string} prv - The private key in BIP32 format.
 * @param {utxolib.Network} network - The network to use for signing.
 * @returns {string} - Returns the signature in hexadecimal format.
 */
export declare function createMessageSignature(message: Signable, xprv: string, network?: utxolib.Network): string;
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