import { HttpClient } from '@angular/common/http';
import * as i0 from "@angular/core";
export declare class DataService {
    private http;
    constructor(http: HttpClient);
    private createHeaders;
    get(url: string): any;
    post(url: string, data: any): any;
    put(url: string, data: any): any;
    delete(url: string): any;
    static ɵfac: i0.ɵɵFactoryDeclaration<DataService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DataService>;
}
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