import { NgChartjsCustomPluginConfig } from './plugins-config';
import { StoreService } from './store.service';
import * as i0 from "@angular/core";
export declare class NgChartjsService {
    private storeService;
    private pluginConfig;
    constructor(storeService: StoreService, pluginConfig: NgChartjsCustomPluginConfig);
    getChart(id: string): any;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgChartjsService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NgChartjsService>;
}
/**
 * 深复制一个json对象
 * @source 需要深复制的对象
 */
export declare function deepCopyJson(source: any): any;
/**
* 合并json对象,遇到相同元素级属性，以source为准
* @source 被合并的json对象
* @dest json对象，将此json的属性递归赋值给source
*/
export declare function mergeJson(source: any, dest: any): Object;
/**
* 是否是json对象
* @target 需要被判断的类型
*/
export declare function isJson(target: any): boolean;