type GoogleTagEventName = 'add_payment_info' | 'begin_checkout' | 'conversion' | 'lead' | 'page_view' | 'purchase' | 'tutorial_begin' | 'tutorial_complete';
export type GoogleTagHeadScript = {
    id: string;
    src?: string;
    content?: string;
};
export type GoogleTagTrackInput = {
    eventName: GoogleTagEventName;
    parameters?: Record<string, unknown>;
};
export type AnalyticsEventForGoogleTag = {
    eventId?: string | null;
    eventType: string;
    metadata?: Record<string, unknown>;
};
declare global {
    interface Window {
        __funnelsgroveGoogleTagHeadReady?: boolean;
        __funnelsgroveGoogleTagPageLocation?: string;
        __funnelsgroveGoogleTagServiceReady?: boolean;
        __funnelsgroveSanitizeGoogleTagUrl?: (value: string) => string | undefined;
        dataLayer?: unknown[];
        gtag?: (...args: unknown[]) => void;
    }
}
export declare const buildGoogleTagHeadScripts: () => GoogleTagHeadScript[];
export declare const mapAnalyticsEventToGoogleTagEvent: (event: AnalyticsEventForGoogleTag) => GoogleTagTrackInput | null;
export declare const mapAnalyticsEventToGoogleAdsConversionEvent: (event: AnalyticsEventForGoogleTag) => GoogleTagTrackInput | null;
export declare const mapAnalyticsEventToGoogleTagEvents: (event: AnalyticsEventForGoogleTag) => GoogleTagTrackInput[];
export declare class GoogleTagService {
    private initialized;
    initialize(): void;
    track(input: GoogleTagTrackInput): void;
    private isConfigured;
    private ensureInitialized;
    private ensureDataLayer;
    private installScript;
}
export declare const googleTagService: GoogleTagService;
export {};