import { BaseAnalyticsEvent } from '../types/events.ts';
import { Analytics } from './Analytics.ts';
export interface MetaPixelConfig {
    measurementId: string;
    userId?: string | null;
}
export declare class Meta extends Analytics<BaseAnalyticsEvent> {
    protected measurementId: string;
    private static instance;
    constructor(config: MetaPixelConfig);
    static getInstance(config: MetaPixelConfig): Meta;
    protected initialize(): void;
    protected sendAnalyticsEvent(customEvent: BaseAnalyticsEvent): number;
}