import { ViewOnlyWallet } from '../ViewOnlyWallet';
import type { WalletSerialized } from '../../WalletSerialized';
import { DerivedPublicKey } from '../../DerivedPublicKey';
/**
 * Read-only HD wallet from an extended public key (xpub). Supports derivation (non-hardened only).
 *
 * @example
 * ```ts
 * const wallet = new XpubWallet('xpub6CUGRUo...');
 * const derived = await wallet.derive("m/0/0");
 * console.log(derived.publicKeyHex);
 * ```
 */
export declare class XpubWallet extends ViewOnlyWallet {
    readonly walletType: "xpub";
    private readonly _xpub;
    private readonly _publicKey;
    /** @param xpub - The extended public key string. */
    constructor(xpub: string);
    /** Compressed master public key as hex string. */
    get publicKey(): string;
    /**
     * Derives a public key at the given path (non-hardened only).
     *
     * @param derivationPath - e.g. `"m/0/0"`.
     */
    derive(derivationPath: string): Promise<DerivedPublicKey>;
    /** @inheritdoc */
    serialize(): Promise<WalletSerialized>;
}