import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { ConnectionStatusConfig } from '../models/connection-status-config';
export declare class NgxConnectionStatusService {
    private config;
    private http;
    private statusHook$;
    constructor(config: ConnectionStatusConfig, http: HttpClient);
    private initConnectionCheck(_interval?);
    private handleError();
    statusHook(): Observable<boolean>;
}