import { Provider } from '@angular/core';
import { IGoogleAnalyticsSettings } from '../interfaces/i-google-analytics-settings';
import { GtagFn } from '../types/gtag.type';
/**
 * Provide a DI Configuration to attach GA Initialization at Angular Startup Cycle.
 */
export declare const NGX_GOOGLE_ANALYTICS_INITIALIZER_PROVIDER: Provider;
/**
 * Create a script element on DOM and link it to Google Analytics tracking code URI.
 * After that, execute exactly same init process as tracking snippet code.
 */
export declare function GoogleAnalyticsInitializer(settings: IGoogleAnalyticsSettings, gtag: GtagFn, document: Document): () => Promise<void>;