type MetaPixelEventName = 'AddPaymentInfo' | 'InitiateCheckout' | 'Lead' | 'ViewContent';
export type MetaPixelTrackInput = {
    eventName: MetaPixelEventName;
    eventId: string;
    environment?: 'test' | 'live';
    customData?: Record<string, unknown>;
};
export type AnalyticsEventForMetaPixel = {
    eventType: string;
    eventId: string;
    metadata?: Record<string, unknown>;
};
declare global {
    interface Window {
        fbq?: MetaPixelQueue;
        _fbq?: MetaPixelQueue;
    }
}
type MetaPixelQueue = {
    (...args: unknown[]): void;
    callMethod?: (...args: unknown[]) => void;
    loaded?: boolean;
    push?: MetaPixelQueue;
    queue?: unknown[][];
    version?: string;
};
export declare const mapAnalyticsEventToMetaPixelEvent: (event: AnalyticsEventForMetaPixel) => MetaPixelTrackInput | null;
export declare class MetaPixelService {
    private initialized;
    track(input: MetaPixelTrackInput): void;
    private isConfigured;
    private ensureInitialized;
    private ensureQueue;
    private installScript;
}
export declare const metaPixelService: MetaPixelService;
export {};