import { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest } from '@angular/common/http';
import { TransferState } from '@angular/platform-browser';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class StateTransferInterceptor implements HttpInterceptor {
    private state;
    private platform;
    constructor(state: TransferState, platform: any);
    intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>>;
    static ɵfac: i0.ɵɵFactoryDeclaration<StateTransferInterceptor, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<StateTransferInterceptor>;
}