import * as i0 from '@angular/core';
import { InjectionToken } from '@angular/core';
import { HttpInterceptor, HttpRequest, HttpHandler, HttpEvent } from '@angular/common/http';
import { Observable } from 'rxjs';

type ProvideAuthorization = () => Promise<string | null> | Observable<string | null>;
declare const PROVIDE_AUTHORIZATION: InjectionToken<ProvideAuthorization>;
declare class AuthorizationInterceptor implements HttpInterceptor {
    private provide;
    intercept(req: HttpRequest<unknown>, next: HttpHandler): Observable<HttpEvent<unknown>>;
    private getRequestWithToken;
    static ɵfac: i0.ɵɵFactoryDeclaration<AuthorizationInterceptor, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<AuthorizationInterceptor>;
}

export { AuthorizationInterceptor, PROVIDE_AUTHORIZATION };
export type { ProvideAuthorization };