import { EventEmitter, TemplateRef, ChangeDetectorRef } from '@angular/core';
export declare class TabItem {
    private cdRef;
    /**
     * Sets the tab title.
     */
    title: string | TemplateRef<any>;
    /**
     * Set to `true` to activate the tab (display it).
     */
    active: boolean;
    /**
     * Callback when the tab is selected.
     */
    selected: EventEmitter<string | TemplateRef<any>>;
    constructor(cdRef: ChangeDetectorRef);
    /**
     * Activates tab item
     */
    activate(): void;
}