import { ClassProvider, Injector } from '@angular/core';
import { HttpInterceptor, HttpEvent, HttpHandler, HttpRequest, HttpHandlerFn } from '@angular/common/http';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
/**
 * Auth interceptor used for intercepting http responses and handling 401, 403 statuses
 * @param req - Request to be intercepted
 * @param next - Next function for passing request to next interceptor
 */
export declare function authInterceptor(req: HttpRequest<unknown>, next: HttpHandlerFn): Observable<HttpEvent<unknown>>;
/**
 * AuthInterceptor used for intercepting http responses and handling 401, 403 statuses
 * @deprecated - Use new `authInterceptor` function instead
 */
export declare class AuthInterceptor implements HttpInterceptor {
    private _injector;
    constructor(_injector: Injector);
    /**
     * Intercepts http request
     * @param req - Request to be intercepted
     * @param next - Next middleware that can be called for next processing
     */
    intercept(req: HttpRequest<unknown>, next: HttpHandler): Observable<HttpEvent<unknown>>;
    static ɵfac: i0.ɵɵFactoryDeclaration<AuthInterceptor, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<AuthInterceptor>;
}
/**
 * Provider for proper use of AuthInterceptor, use this provider to inject this interceptor
 * @deprecated - Use new `authInterceptor` function instead
 */
export declare const AUTH_INTERCEPTOR_PROVIDER: ClassProvider;
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