export interface SharedData {
    text?: string;
    url?: string;
    images?: string[];
    webpageUrl?: string;
    webpageTitle?: string;
    preprocessedData?: any;
}
type ExtensionNativeModule = {
    closeExtension: () => void;
    openHostApp: (path: string) => void;
    getSharedData: () => SharedData | null;
};
/**
 * Resolve the ExpoTargetsExtension native module.
 * Returns null when unavailable (wrong platform, missing native build, or host app).
 */
export declare function getExtensionNativeModule(): ExtensionNativeModule | null;
/**
 * Cross-type RN extension lifecycle helpers (share, action, clip, messages).
 *
 * Contract:
 * - Call from the extension JS bundle (not Expo Go).
 * - `createTarget(name, Component)` registers the component via AppRegistry; `name` must match config.
 * - `getSharedData` / `close` / `openHostApp` require the ExpoTargetsExtension native module.
 * - Messages adds APIs on top of this contract (see Messages module).
 * - Android: requires a target Activity (Wave 0 harness or Wave 1 Share/Action Activity).
 */
export declare class Extension {
    /** Dismiss the extension UI (share/action). */
    close(): void;
    /** Open the host app, optionally with a path/URL fragment. */
    openHostApp(path?: string): void;
    /** Read content shared into the extension (text, URLs, images, …). */
    getSharedData(): SharedData | null;
}
export declare const close: () => void;
export declare const openHostApp: (path?: string) => void;
export declare const getSharedData: () => SharedData | null;
export type { SharedData as ExtensionSharedData };
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