import { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest } from '@angular/common/http';
import { NghSpinnerService } from './ngh-spinner.service';
import { Observable } from 'rxjs';
export declare class NghInterceptorService implements HttpInterceptor {
    private nghSpinnerService;
    constructor(nghSpinnerService: NghSpinnerService);
    intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>>;
}