import type { EsmsConfig } from './types';
import { SmsService, AccountService, ZaloService, ViberService, VoiceService, MultiChannelService, SummaryService } from './services';
/**
 * eSMS API Client - service-based architecture with proper TypeScript types
 *
 * Usage:
 * ```typescript
 * const client = new EsmsClient({ apiKey: 'xxx', secretKey: 'yyy' });
 *
 * // Use specific services with credentials
 * const balance = await client.account.getBalance({ apiKey: 'xxx', secretKey: 'yyy' });
 * const smsResult = await client.sms.sendMessageV4({ ... }, { apiKey: 'xxx', secretKey: 'yyy' });
 *
 * // Or use default credentials from constructor
 * const balance = await client.getBalance(); // backward compatibility
 * ```
 */
export declare class EsmsClient {
    private http;
    readonly sms: SmsService;
    readonly account: AccountService;
    readonly zalo: ZaloService;
    readonly viber: ViberService;
    readonly voice: VoiceService;
    readonly multiChannel: MultiChannelService;
    readonly summary: SummaryService;
    constructor(config: EsmsConfig);
    /**
     * @deprecated Use client.account.getBalance() instead (credentials optional now)
     */
    getBalance(): Promise<import("./types").BalanceResponse>;
    /**
     * @deprecated Use client.account.getListBrandname() instead (credentials optional now)
     */
    getListBrandname(): Promise<import("./types").GetListBrandnameResponse>;
}