import * as i0 from "@angular/core";
/**
 * Provides quick access to platform information.
 *
 * @export
 * @class UniversalService
 */
export declare class UniversalService {
    readonly platformId: any;
    /**
     * `true` if the app is currently running on a browser; otherwise `false`.
     */
    readonly isPlatformBrowser: boolean;
    /**
    * `true` if the app is currently running on a server; otherwise `false`.
    */
    readonly isPlatformServer: boolean;
    /**
    * `true` if the app is currently running on a worker app; otherwise `false`.
    */
    readonly isPlatformWorkerApp: boolean;
    /**
    * `true` if the app is currently running on a worker UI; otherwise `false`.
    */
    readonly isPlatformWorkerUi: boolean;
    /**
     * Creates an instance of UniversalService.
     *
     * @param {*} platformId The id of the current platform. This always equals to `PLATFORM_ID`.
     */
    constructor(platformId: any);
    /**
     * Executes the specified function only on browser platfroms.
     *
     * @template T The type of value returned by the `execute()` function.
     * @param {() => T} execute The function to execute only on browser platforms.
     * @returns {T} The value returned by the `execute()` function. If the funtion was not executed, this will be `undefined`.
     */
    onBrowser<T>(execute: () => T): T | undefined;
    /**
     * Executes the specified function only on server platfroms.
     *
     * @template T The type of value returned by the `execute()` function.
     * @param {() => T} execute The function to execute only on server platforms.
     * @returns {T} The value returned by the `execute()` function. If the funtion was not executed, this will be `undefined`.
     */
    onServer<T>(execute: () => T): T | undefined;
    /**
     * Executes the specified function only on worker app platfroms.
     *
     * @template T The type of value returned by the `execute()` function.
     * @param {() => T} execute The function to execute only on worker app platforms.
     * @returns {T} The value returned by the `execute()` function. If the funtion was not executed, this will be `undefined`.
     */
    onWorkerApp<T>(execute: () => T): T | undefined;
    /**
     * Executes the specified function only on worker UI platfroms.
     *
     * @template T The type of value returned by the `execute()` function.
     * @param {() => T} execute The function to execute only on worker UI platforms.
     * @returns {T} The value returned by the `execute()` function. If the funtion was not executed, this will be `undefined`.
     */
    onWorkerUi<T>(execute: () => T): T | undefined;
    /**
     * Executes the specified function only on browser platfroms.
     *
     * @template T The type of value returned by the `execute()` function.
     * @param {() => T} execute The function to execute only on browser platforms.
     * @returns {T} The value returned by the `execute()` function. If the funtion was not executed, this will be `undefined`.
     */
    onNonBrowser<T>(execute: () => T): T | undefined;
    /**
     * Executes the specified function only on server platfroms.
     *
     * @template T The type of value returned by the `execute()` function.
     * @param {() => T} execute The function to execute only on server platforms.
     * @returns {T} The value returned by the `execute()` function. If the funtion was not executed, this will be `undefined`.
     */
    onNonServer<T>(execute: () => T): T | undefined;
    /**
     * Executes the specified function only on worker app platfroms.
     *
     * @template T The type of value returned by the `execute()` function.
     * @param {() => T} execute The function to execute only on worker app platforms.
     * @returns {T} The value returned by the `execute()` function. If the funtion was not executed, this will be `undefined`.
     */
    onNonWorkerApp<T>(execute: () => T): T | undefined;
    /**
     * Executes the specified function only on worker UI platfroms.
     *
     * @template T The type of value returned by the `execute()` function.
     * @param {() => T} execute The function to execute only on worker UI platforms.
     * @returns {T} The value returned by the `execute()` function. If the funtion was not executed, this will be `undefined`.
     */
    onNonWorkerUi<T>(execute: () => T): T | undefined;
    private onPlatform;
    static ɵfac: i0.ɵɵFactoryDeclaration<UniversalService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<UniversalService>;
}