import { OnInit, ElementRef } from '@angular/core';
import { AlHighchartsActivityGaugeService } from './al-highchart-activity-gauge.service';
import * as Highcharts from 'highcharts/highcharts';
import { ActivityGaugeConfig } from '../types';
export declare class AlHighchartsActivityGaugeComponent implements OnInit {
    private gaugeService;
    chart: Highcharts.Chart;
    themeToggle: boolean;
    chartTarget: ElementRef;
    config: ActivityGaugeConfig;
    constructor(gaugeService: AlHighchartsActivityGaugeService);
    ngOnInit(): void;
    toggleTheme(): void;
    toggleDarkTheme(): void;
}