import { BackButtonHandlers } from './types';
/** Default handlers — overridable per-shell via `bootNativeShell({ backButton })`. */
export declare function createDefaultBackButtonHandlers(appName: string): BackButtonHandlers;
/** Precedence: close top overlay → in-app history back → confirm + exit. */
export declare function runBackButtonPrecedence(handlers: BackButtonHandlers): void;
/** Android hardware back button (Capacitor `backButton` event). */
export declare function installBackButtonHandler(handlers: BackButtonHandlers): Promise<void>;
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