// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. // @dart=2.9 const generatorConfigDefaultJson = {'a': 1}; void helper(Map input) { print(input); } void main() { final nullValueMap = Map.fromEntries( generatorConfigDefaultJson.entries.map((e) => MapEntry(e.key, null))); helper(nullValueMap); }