/**
 * @author Megan Castleton <megan.castleton@alertlogic.com>
 *
 * @copyright Alert Logic, Inc 2019
 */
import { ElementRef, OnChanges, SimpleChanges } from '@angular/core';
export declare class AlHighchartColumnComponent implements OnChanges {
    chart: ElementRef;
    columnChart: any;
    themeToggle: boolean;
    /**
     * Input to populate the graph - set to 'any' until backend is defined, allowing us to build
     * an interface
     */
    config: any;
    private populateConfig;
    private updateSeries;
    ngOnChanges(changes: SimpleChanges): void;
    toggleTheme(): void;
    toggleDarkTheme(): void;
}