/**
 * @license
 * Copyright Akveo. All Rights Reserved.
 * Licensed under the MIT License. See License.txt in the project root for license information.
 */
import { OnInit, OnDestroy, ChangeDetectorRef } from '@angular/core';
import { NbAccordionItemComponent } from './accordion-item.component';
/**
 * Component intended to be used within `<nb-accordion-item>` component
 */
export declare class NbAccordionItemHeaderComponent implements OnInit, OnDestroy {
    private accordionItem;
    private cd;
    get isCollapsed(): boolean;
    get expanded(): boolean;
    get tabbable(): string;
    get disabled(): boolean;
    toggle(): void;
    get state(): string;
    private destroy$;
    constructor(accordionItem: NbAccordionItemComponent, cd: ChangeDetectorRef);
    ngOnInit(): void;
    ngOnDestroy(): void;
}