/**
 * 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
 * @format
 */
'use strict';

const isPromise = require('./Recoil_isPromise');

const TIME_WARNING_THRESHOLD_MS = 15;
type Options = $ReadOnly<{
  allowFunctions?: boolean
}>;
declare function stringify(x: mixed, opt: Options, key?: string): string; // Utility similar to JSON.stringify() except:
// * Serialize built-in Sets as an Array
// * Serialize built-in Maps as an Object.  Supports non-string keys.
// * Serialize other iterables as arrays
// * Sort the keys of Objects and Maps to have a stable order based on string conversion.
//    This overrides their default insertion order.
// * Still uses toJSON() of any object to override serialization
// * Support Symbols (though don't guarantee uniqueness)
// * We could support BigInt, but Flow doesn't seem to like it.
// See Recoil_stableStringify-test.js for examples

declare function stableStringify(x: mixed, opt: Options): string;
module.exports = stableStringify;