/** * Copyright (c) Meta Platforms, Inc. and affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. * * @format * @flow */ 'use strict'; type BackPressEventName = 'backPress' | 'hardwareBackPress'; type TBackHandler = {| +exitApp: () => void, +addEventListener: ( eventName: BackPressEventName, handler: () => ?boolean, ) => {remove: () => void, ...}, +removeEventListener: ( eventName: BackPressEventName, handler: () => ?boolean, ) => void, |}; declare module.exports: TBackHandler;