import { HighchartsConfig } from './highcharts.config';
import * as Highcharts from 'highcharts';
export declare class HighchartsService {
    private promise;
    private config;
    constructor(customConfig: HighchartsConfig);
    load(url?: string): Promise<typeof Highcharts>;
    loadModules(modules: string[]): Promise<typeof Highcharts>;
    private readonly highcharts;
    private resolveModuleUrl;
}