import { ReactiveController, ReactiveControllerHost } from 'lit';
import { InstallOutcome, InstallPlatform } from './types.js';
export declare class PwaInstallController implements ReactiveController {
    private _host;
    private _unsubscribe?;
    constructor(host: ReactiveControllerHost);
    /** True when a native install prompt is available. */
    get canInstall(): boolean;
    /** True once installed (this session) or running standalone. */
    get installed(): boolean;
    /** True when the browser has an install-prompt concept at all (Chromium). */
    get isSupported(): boolean;
    /** True when running in a standalone/installed display mode. */
    get isStandalone(): boolean;
    /** True on iOS Safari, where installation is manual (Share sheet). */
    get isIOS(): boolean;
    /** How the app can be installed in the current context. */
    get platform(): InstallPlatform;
    /**
     * Trigger the native install prompt.
     * @returns The user's choice, or `"unavailable"` when no prompt exists.
     */
    install(): Promise<InstallOutcome>;
    hostConnected(): void;
    hostDisconnected(): void;
}
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