import * as i0 from "@angular/core";
export declare class AppInitializerService {
  private readonly transferStateService;
  private readonly appInsightsService;
  /**
   * Initializes the SSO (Single Sign-On) enabled state.
   * This method calls the `initializeSsoEnabled` method of the `transferStateService`.
   */
  private initializeSsoEnabled;
  /**
   * Initializes the LaunchDarkly configuration.
   */
  private initializeLaunchDarkly;
  /**
   * Initializes the Application Insights configuration.
   */
  private initializeAppInsights;
  /**
   * Initializes the user state cache expiration milliseconds.
   */
  private initializeUserStateCacheExpirationMilliseconds;
  /**
   * Initializes the user-state domain used for permission lookup.
   */
  private initializeUserStateDomain;
  /**
   * Initializes the feature flag override configuration.
   */
  private initializeFeatureFlagConfig;
  /**
   * Initializes the application.
   * This method calls the necessary initialization functions.
   */
  initializeApp(): Promise<void>;
  static ɵfac: i0.ɵɵFactoryDeclaration<AppInitializerService, never>;
  static ɵprov: i0.ɵɵInjectableDeclaration<AppInitializerService>;
}
/**
 * Initializes the OPAL browser application after server configuration is available.
 *
 * Waiting for the initializer ensures Application Insights is loaded before the
 * application makes its initial HTTP requests, allowing their trace context to be
 * propagated to downstream services.
 */
export declare function provideOpalAppInitializer(): import("@angular/core").EnvironmentProviders;