import { Angulartics2 } from '../../angulartics2-core';
import * as i0 from "@angular/core";
export declare class Angulartics2Facebook {
    private angulartics2;
    constructor(angulartics2: Angulartics2);
    startTracking(): void;
    /**
     * Send interactions to the Pixel, i.e. for event tracking in Pixel
     *
     * @param action action associated with the event
     */
    eventTrack(action: string, properties?: any): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<Angulartics2Facebook, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<Angulartics2Facebook>;
}