import { VivawalletAPIInit } from '../types/Vivawallet.types';
import VivaSkull from './VivaSkull.class';
declare class VivaAuth extends VivaSkull {
    /**
     * This code is used for Viva Wallet webhook verification (validation and events) and should be return in the `json` response with the following format:
     * ```json
     * {
     *    "key": "<webhookCode>"
     * }
     * ```
     */
    webhookCode: string | null;
    vivaTotken: string | null;
    constructor(datas: VivawalletAPIInit);
    /** Credentials verification, `throw` error if credentials is not gived ***(required for API calls)*** */
    init(): Promise<void>;
    /** Return the VivaWallet API Auth2.0 code from Credentials (needed for API Bearer calls) or `null` on request failed */
    getVivaToken(): Promise<string | null>;
    getVivaBasicToken(): string;
    /** Return the code needed for Viva webhooks returns or `null` on request failed */
    getVivaWebhookCode(): Promise<string | null>;
}
export default VivaAuth;