import { XHR } from '../../icc-api/api/XHR';
import Header = XHR.Header;
export interface AuthService {
    /**
     * This method returns the headers needed to authenticate the user.
     * It can throw an error if is not possible to get the headers.
     * @param minimumAuthenticationClassLevel the minimum authentication class level which the headers should have.
     * @return an array of headers for authentication.
     */
    getAuthHeaders(minimumAuthenticationClassLevel?: number): Promise<Array<Header>>;
    /**
     * If the headers are invalidated, you can set the error to throw
     * the next time the headers are requested.
     * @param error the error to throw
     */
    invalidateHeader(error: Error): void;
    /**
     * This property will be implemented only by the JwtServices, and will return a
     * function that provides the latest JWT.
     */
    readonly jwtGetter?: () => Promise<{
        token: string;
        refreshToken: string | undefined;
    } | undefined>;
}