import { ElementRef, EventEmitter, OnDestroy } from '@angular/core';
import { FocusIndicatorService } from '../../../../directives/accessibility/index';
import * as i0 from "@angular/core";
export declare class FacetHeaderComponent implements OnDestroy {
    readonly focusIndicatorService: FocusIndicatorService;
    readonly elementRef: ElementRef<any>;
    /** Defines the text to display in the header. */
    header: string;
    /** Defines whether or not clicking on the header will toggle the expanded state. */
    canExpand: boolean;
    /** Can be used to set the initial expanded state. */
    expanded: boolean;
    /** If two-way binding is used it will be updated when the expanded state changes. */
    expandedChange: EventEmitter<boolean>;
    /** Store Focus Indicator instance */
    private readonly _focusIndicator;
    constructor();
    ngOnDestroy(): void;
    toggleExpand(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<FacetHeaderComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<FacetHeaderComponent, "ux-facet-header", never, { "header": { "alias": "header"; "required": false; }; "canExpand": { "alias": "canExpand"; "required": false; }; "expanded": { "alias": "expanded"; "required": false; }; }, { "expandedChange": "expandedChange"; }, never, never, false, never>;
}