/**
 * Returns true if we're on macOS and can use the native file picker.
 */
export declare function canUseFilePicker(): boolean;
/**
 * Open the macOS native file picker dialog filtered to .p8 files.
 * Returns the selected file path, or null if the user cancelled.
 * Non-blocking — uses async execFile so Ink spinners keep animating.
 */
export declare function openFilePicker(): Promise<string | null>;
export declare function openPackageJsonPicker(): Promise<string | null>;
export interface SaveFilePickerOptions {
    prompt: string;
    defaultName?: string;
    defaultLocation?: string;
}
/**
 * Open the macOS native "Save As…" dialog. Returns the chosen path, or null if
 * the user cancelled. macOS prompts for overwrite confirmation natively, so
 * callers do not need to re-confirm.
 */
export declare function openSaveFilePicker(opts: SaveFilePickerOptions): Promise<string | null>;
/**
 * Open the macOS native file picker filtered to Android keystore files.
 * Accepts .jks, .keystore, and .p12 extensions.
 */
export declare function openKeystorePicker(): Promise<string | null>;
/**
 * Open the macOS native file picker filtered to Google Play service account
 * JSON files. Used by the Android onboarding "import existing SA" path.
 *
 * Uses the official `public.json` Uniform Type Identifier rather than the raw
 * `"json"` extension hint — AppleScript treats unrecognized strings as 4-char
 * OSType codes, and the legacy OSType code for `"json"` does not match real
 * `.json` files, which makes the dialog grey them all out.
 */
export declare function openServiceAccountJsonPicker(): Promise<string | null>;