import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
export declare abstract class BaseService {
    protected http: HttpClient;
    constructor(http: HttpClient);
    get<E>(path: string, options?: Object): Observable<E>;
    post<E>(path: string, body: any, options?: Object): Observable<E>;
    put<E>(path: string, body: any, options?: Object): Observable<E>;
    delete<E>(path: string, options?: Object): Observable<E>;
    handleError(error: any): Observable<any>;
}