import { ElementRef, OnChanges, SimpleChanges } from '@angular/core';
import { TabsService } from './tabs.service';
import * as i0 from "@angular/core";
export declare class TabDirective implements OnChanges {
    elRef: ElementRef<HTMLElement>;
    private _tabsService;
    isActive: boolean;
    role: string;
    tabindex: number;
    constructor(elRef: ElementRef<HTMLElement>, _tabsService: TabsService);
    ngOnChanges(changes: SimpleChanges): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TabDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<TabDirective, "[nwTab]", never, { "isActive": { "alias": "isActive"; "required": false; }; }, {}, never, never, false, never>;
}