import { Injector } from '@angular/core';
import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest } from '@angular/common/http';
import { Observable } from 'rxjs';
/**
 * This interceptor adds the headers to all request.
 *
 * @export
 * @class HttpTokenInterceptor
 * @implements {HttpInterceptor}
 */
export declare class HttpTokenInterceptor implements HttpInterceptor {
    private readonly injector;
    constructor(injector: Injector);
    intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>>;
}