import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { HttpSecret } from "./models/admin.model";
import * as i0 from "@angular/core";
export declare class HttpService {
    private httpClient;
    private secret;
    private base_url;
    constructor(httpClient: HttpClient);
    private getHeaders;
    get<T>(url: string, params?: any): Observable<T>;
    post<T>(url: string, data: any): Observable<T>;
    put<T>(url: string, data: any): Observable<T>;
    delete<T>(url: string): Observable<T>;
    setSelectedServer(data: HttpSecret): void;
    checkForSecret(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<HttpService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<HttpService>;
}