import { AfterContentInit, QueryList, EventEmitter, OnChanges, SimpleChanges, OnDestroy } from '@angular/core';
import { NpTab } from './tab.component';
/**
 * @ignore
 */
export declare class NpTabGroup implements AfterContentInit, OnChanges, OnDestroy {
    selectedIndex: number;
    type: 'default' | 'chrome-like';
    selectedIndexChange: EventEmitter<number>;
    tabs: QueryList<NpTab>;
    constructor();
    ngOnChanges(changes: SimpleChanges): void;
    ngAfterContentInit(): void;
    /**
     *
     * @param tab 当前选中的tab
     * @param index 当前选中的tab的index，注：index目前只有在单击tab标签页的时候需要传入，其他情况下不需要
     */
    selectTab(tab: NpTab, index?: number): void;
    isShowDivider(tabs: QueryList<NpTab>, tab: NpTab, index: number): boolean;
    ngOnDestroy(): void;
}