import { Observable } from 'rxjs/Observable';
import { HttpHeaders, HttpParams } from '@angular/common/http';
export declare class HttpOptionsArgs {
    url?: string;
    headers?: HttpHeaders;
    observe?: string;
    params?: HttpParams;
    reportProgress?: boolean;
    responseType?: string;
    withCredentials?: boolean;
}
export declare abstract class HttpService {
    abstract get(url: string, options?: HttpOptionsArgs): Observable<any>;
    abstract post(body: any | null, options?: HttpOptionsArgs): Observable<any>;
    abstract delete(options: HttpOptionsArgs): Observable<any>;
    abstract head(options: HttpOptionsArgs): Observable<any>;
    abstract jsonp(url: string, callbackParam: string): Observable<any>;
    abstract options(options: HttpOptionsArgs): Observable<any>;
    abstract patch(body: any | null, options?: HttpOptionsArgs): Observable<any>;
    abstract put(body: any | null, options?: HttpOptionsArgs): Observable<any>;
    abstract request(method: string, url: string, options: HttpOptionsArgs): Observable<any>;
}