import { Provider } from "./util";
/**
 * An object representing temporary or permanent AWS token.
 */
export interface Token {
    /**
     *The literal token string
     */
    readonly token: string;
    /**
     * A {Date} when these token will no longer be accepted.
     * When expiration is not defined, the token is assumed to be permanent.
     */
    readonly expiration?: Date;
}
export declare type TokenProvider = Provider<Token>;