import { ChangeDetectorRef, EventEmitter, OnInit } from '@angular/core';
export declare class SkyContribVerticalTabbarItemComponent implements OnInit {
    private cdr;
    private isActive;
    title: string;
    disabled: boolean;
    invalid: boolean;
    required: boolean;
    action: EventEmitter<{}>;
    active: boolean;
    constructor(cdr: ChangeDetectorRef);
    ngOnInit(): void;
}