export declare const Authentication: {
    readonly BEARER_EXPIRY_DATE_MARGIN: 10000;
    readonly EAN: "EAN";
    readonly BASIC: "Basic";
    readonly BEARER: "Bearer";
    readonly AUTHORIZATION: "Authorization";
    readonly USERNAME: "username";
    readonly PASSWORD: "password";
    readonly CLIENT_CREDENTIALS: "client_credentials";
    readonly APPLICATION_FORM_URL_ENCODED: "application/x-www-form-urlencoded";
};