import BaseComponent from "../Counter/BaseComponent";
declare class HeatmapChart extends BaseComponent {
    private chartContainer;
    private chartInstance;
    private chartOptions;
    constructor();
    connectedCallback(): void;
    disconnectedCallback(): void;
    private initChart;
    updateChart(chartOptions: any): void;
    private getDefaultOptions;
    private mergeDeep;
}
export default HeatmapChart;