import { CitiBankSDKConfig } from './interfaces';
export declare class ApiRequest {
    private readonly config;
    private readonly httpsAgent;
    private readonly baseURL;
    constructor(config: CitiBankSDKConfig);
    /**
     * Envia a requisição POST com o payload XML para a API do Citibank.
     * @param xmlPayload - A string XML gerada pelo XMLBuilder.
     */
    post(xmlPayload: string): Promise<string>;
}