import { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest } from '@angular/common/http';
import { Observable } from 'rxjs';
export declare class HTTPStatus {
    private requestInFlight$;
    constructor();
    setHttpStatus(inFlight: boolean): void;
    getHttpStatus(): Observable<boolean>;
}
export declare class HttpActivityInterceptor implements HttpInterceptor {
    private status;
    constructor(status: HTTPStatus);
    private _strikes;
    intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>>;
}