import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { ChartConfig } from './chart-config.model';
import * as i0 from "@angular/core";
export declare class ChartServiceChartjs {
    private http;
    private apiUrl;
    constructor(http: HttpClient);
    saveChart(config: ChartConfig): Observable<any>;
    getChart(id: string): Observable<ChartConfig>;
    static ɵfac: i0.ɵɵFactoryDeclaration<ChartServiceChartjs, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ChartServiceChartjs>;
}