import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest } from '@angular/common/http';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class ZekLoadingService {
    private _pendingRequests;
    private _loadingSubject$?;
    private _onLoadingObservable?;
    start(): void;
    end(): void;
    get onLoading(): Observable<boolean>;
    static ɵfac: i0.ɵɵFactoryDeclaration<ZekLoadingService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ZekLoadingService>;
}
export declare class ZekLoadingInterceptor implements HttpInterceptor {
    private readonly _loading;
    constructor(_loading: ZekLoadingService);
    intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>>;
    static ɵfac: i0.ɵɵFactoryDeclaration<ZekLoadingInterceptor, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ZekLoadingInterceptor>;
}
export declare const ZekLoadingInterceptorProvider: {
    provide: import("@angular/core").InjectionToken<readonly HttpInterceptor[]>;
    useClass: typeof ZekLoadingInterceptor;
    multi: boolean;
}[];