import { RequestAdapter, RequestFactory } from './request-factory.js';
export declare abstract class HeaderTokenAuthorizingAdapter implements RequestAdapter {
    header: string;
    tokenHeaderType: string;
    applyToken(request: Request, accessToken: string): Request;
    abstract adapt(requestFactory: RequestFactory, request: Request): Promise<Request>;
}
export declare class StaticHeaderTokenAuthorizingAdapter extends HeaderTokenAuthorizingAdapter {
    private readonly accessToken;
    constructor(accessToken: string);
    adapt(_requestFactory: RequestFactory, request: Request): Promise<Request>;
}
export interface TokenAuthorization {
    token: string;
    expires: Date;
}
export declare class RefreshingHeaderTokenAuthorizingAdapter extends HeaderTokenAuthorizingAdapter {
    private readonly refresh;
    private authorization?;
    constructor(refresh: (requestFactory: RequestFactory) => Promise<TokenAuthorization>);
    shouldRefresh(): boolean;
    adapt(requestFactory: RequestFactory, request: Request): Promise<Request>;
}