import * as Chart from 'chart.js';
import { OnInit, OnDestroy, ElementRef } from '@angular/core';
export declare class BarChartComponent implements OnInit, OnDestroy {
    private elementRef;
    initChart: boolean;
    barChart: Chart;
    ctx: ElementRef;
    constructor(elementRef: ElementRef);
    ngOnInit(): void;
    ngOnDestroy(): void;
    createChart(): void;
}