anchor.diff:    print(' - Writing lib/src/boringssl/lookup/symbols.generated.dart');
     final generatedDart = 'lib/src/boringssl/lookup/symbols.generated.dart';
     await File.fromUri(rootUri.resolve(generatedDart)).writeAsString([
  +    '// Copyright 2020 Google LLC',
  +    '//',
  +    '// Licensed under the Apache License, Version 2.0 (the "License");',
  +    '// you may not use this file except in compliance with the License.',
  +    '// You may obtain a copy of the License at',
  +    '//',
  +    '//      http://www.apache.org/licenses/LICENSE-2.0',
  +    '//',
  +    '// Unless required by applicable law or agreed to in writing, software',
  +    '// distributed under the License is distributed on an "AS IS" BASIS,',
  +    '// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.',
  +    '// See the License for the specific language governing permissions and',
  +    '// limitations under the License.',
  +    '',
       '/// **GENERATED FILE DO NOT MODIFY**',
       '///',
       '/// This file is generated from `src/symbols.yaml` using:',
  
positive.code:   // Generate src/symbols.generated.c
    print(' - Writing src/symbols.generated.c');
    await File.fromUri(rootUri.resolve('src/symbols.generated.c')).writeAsString([
      '// **GENERATED FILE DO NOT MODIFY**',
      '//',
      '// This file is generated from `src/symbols.yaml` using:',
  
negative.code:     'extension SymName on Sym {',
      '  /// Get name of symbol in `libcrypto.so` from BoringSSL.',
      '  String get name {',
      '    return _SymName[index];',
      '  }',
      '}',
      '',
  