import Node from '../Node.js';
import AccountBase from './Base.js';
/**
 * A factory class that generates instances of AccountBase by index.
 * @category account
 */
export default abstract class AccountBaseFactory {
    /**
     * Get an instance of AccountBase for a given account index.
     * @param accountIndex - Index of account
     */
    abstract initialize(accountIndex: number): Promise<AccountBase>;
    /**
     * Discovers accounts in set that already have been used (has any on-chain transactions).
     * It returns an empty array if none of accounts been used.
     * If a used account is preceded by an unused account then it would be ignored.
     * @param node - Instance of Node to get account information from
     */
    discover(node: Node): Promise<AccountBase[]>;
}