import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest, HttpErrorResponse } from '@angular/common/http';
import { Observable } from 'rxjs';
import { UserService } from '../user/user.service';
import { TransferState } from '@angular/platform-browser';
export declare class BrowserStateInterceptor implements HttpInterceptor {
    private platformId;
    private transferState;
    userService: UserService;
    constructor(platformId: any, transferState: TransferState, userService: UserService);
    handleError(error: HttpErrorResponse): Observable<never>;
    intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>>;
}