import { BaseApi } from './base-api';
import { ProxyConfig } from '../models/proxy-config';
/**
 * AccountApi class provides methods to interact with account-related endpoints.
 */
export declare class AccountApi extends BaseApi {
    /**
     * Creates an instance of AccountApi.
     * @param username - The API username.
     * @param password - The API password.
     * @param proxyConfig - Optional proxy configuration.
     */
    constructor(username: string, password: string, proxyConfig?: ProxyConfig);
    /**
     * Retrieves the account balance.
     * @returns Promise resolving to BalanceResponse.
     * @throws ErrorResponse if the API call fails.
     */
    getBalance(): Promise<number>;
}