/// <reference types="node" />
/// <reference types="node" />
import { IBaseWalletAccount, IBlockchainWallet, IKeyStore, ISignature } from '@portkey/types';
export declare class WalletAccount implements IBaseWalletAccount {
    [key: string]: unknown;
    address: string;
    privateKey: string;
    wallet: IBlockchainWallet;
    constructor(wallet: IBlockchainWallet);
    /**
     * @param hexString hex string
     * @returns hex string
     */
    sign(hexString: string): Buffer;
    encrypt(password: string, options?: Record<string, unknown>): Promise<IKeyStore>;
    signTransaction<T extends Record<string, unknown>>(tx: Record<string, unknown>): Promise<T & ISignature>;
}