import type { ITokenData } from './token-providers/types/TokenData.types.js';
/**
 * Formats the authorization request header with the passed in access token.
 *
 * @param accessToken - The access token to be included in the authorization header.
 *
 * @returns The authorization request header with the access token included or null if no access token
 * is passed.
 */
export declare const defaultAuthorizationHeaderFormatter: (accessToken?: string) => string | null;
/**
 * Creates a token data serializer to be used in AuthenticationTokenManager's
 * storage.serializer option. It uses cryptojs's AES algorithm to encrypt data with
 * the passed in secret key. Please notice that as the key lives on the front-end,
 * an attacker will always be able to obtain it and get access to the decrypted
 * data, so this will only make it a little bit harder for an attacker to obtain
 * the saved token data.
 *
 * @param secretKey - The key to be used to encrypt token data.
 *
 * @returns Object implementing serializeTokenData and deserializeTokenData methods to be used in
 * AuthenticationTokenManager's storage.serializer option.
 */
export declare const getDefaultTokenDataSerializer: (secretKey: string) => {
    serializeTokenData: (tokenData: ITokenData) => string;
    deserializeTokenData: (rawData: string) => ITokenData;
};