import { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest } from '@angular/common/http';
import { Observable } from 'rxjs';
import { TerraLoadingSpinnerService } from '../components/loading-spinner/service/terra-loading-spinner.service';
import * as i0 from "@angular/core";
/**
 * @description HttpInterceptor that triggers the loading spinner in terra. It starts and also stops it.
 */
export declare class LoadingInterceptor implements HttpInterceptor {
    private _loadingSpinner;
    constructor(_loadingSpinner: TerraLoadingSpinnerService);
    intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>>;
    static ɵfac: i0.ɵɵFactoryDeclaration<LoadingInterceptor, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<LoadingInterceptor>;
}