import { HttpClient } from '@angular/common/http'; import { Observable } from 'rxjs'; export declare abstract class NgxCliLibDemoCrudService { private httpClient; protected abstract baseUrl: string; protected abstract endPoint: string; protected abstract parseData(data: any): any; constructor(httpClient: HttpClient); post(data: any): Observable; get(id: number): Observable; put(data: any): Observable; delete(id: number): Observable; }