/**
 * This class is used to manage the unprotected headers of a token.
 * Their validation is handled by the JSON schema.
 */
export default class UnprotectedHeaders {
    private header?;
    constructor(p: any);
    /**
     * Get the unprotected headers of the token.
     *
     * @returns {Object}
     */
    getHeaders(): Object;
    toString(): string;
}