import { EventListener } from '@telegram-apps/bridge';
declare const EVENT_NAME = "home_screen_failed";
/**
 * Adds the event listener that being called whenever the user declines the request to add the
 * current mini app to the device's home screen.
 * @since Mini Apps v8.0
 * @throws {FunctionNotAvailableError} The environment is unknown
 * @throws {FunctionNotAvailableError} The SDK is not initialized
 * @throws {FunctionNotAvailableError} The function is not supported
 * @example
 * if (onAddToHomeScreenFailed.isAvailable()) {
 *   const off = onAddToHomeScreenFailed(() => {
 *     console.log('Failed to add to home screen');
 *     off();
 *   });
 * }
 */
export declare const onAddToHomeScreenFailed: import('../../wrappers/wrapSafe.js').SafeWrapped<(listener: EventListener<typeof EVENT_NAME>, once?: boolean) => VoidFunction, true, never>;
/**
 * Removes add to home screen failed event listener.
 * @since Mini Apps v8.0
 * @throws {FunctionNotAvailableError} The environment is unknown
 * @throws {FunctionNotAvailableError} The SDK is not initialized
 * @throws {FunctionNotAvailableError} The function is not supported
 * @example
 * if (offAddToHomeScreenFailed.isAvailable()) {
 *   const handler = () => {
 *     console.log('Failed to add');
 *     offAddToHomeScreenFailed(handler);
 *   };
 *   onAddToHomeScreenFailed(handler);
 * }
 */
export declare const offAddToHomeScreenFailed: import('../../wrappers/wrapSafe.js').SafeWrapped<(listener: EventListener<typeof EVENT_NAME>) => void, true, never>;
export {};