import { ChangeDetectorRef, EventEmitter, SimpleChanges, OnInit, OnChanges, OnDestroy } from '@angular/core';
import { Subject } from 'rxjs';
import { NbAccordionComponent } from './accordion.component';
export declare class NbAccordionItemComponent implements OnInit, OnChanges, OnDestroy {
    private accordion;
    private cd;
    collapsed: boolean;
    expanded: boolean;
    disabled: boolean;
    collapsedChange: EventEmitter<boolean>;
    accordionItemInvalidate: Subject<boolean>;
    private collapsedValue;
    private disabledValue;
    private alive;
    constructor(accordion: NbAccordionComponent, cd: ChangeDetectorRef);
    toggle(): void;
    open(): void;
    close(): void;
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    private invalidate;
}