/** * Copyright (c) Facebook, Inc. and its affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. * * @emails oncall+recoil * @flow strict-local * @format */ 'use strict'; const React = require('React'); // FIXME T2710559282599660 const useMutableSource: Function = // flowlint-line unclear-type:off (React: any).useMutableSource ?? (React: any).unstable_useMutableSource; // flowlint-line unclear-type:off declare function mutableSourceExists(): boolean; module.exports = { mutableSourceExists, useMutableSource };