old_contents: module.exports = {
    rules: {
      camelcase: 'off',
      'no-bitwise': 'off',
      'no-plusplus': 'off',
      'no-restricted-syntax': 'off',
      'no-underscore-dangle': 'off',
      'import/extensions': 'off',
      'import/no-extraneous-dependencies': ['error', { devDependencies: false }],
    },
    extends: 'airbnb-base',
    plugins: ['import'],
    env: {
      browser: true,
      node: true,
      mocha: true,
    },
  };
  
new_contents: module.exports = {
    rules: {
      camelcase: 'off',
      'no-bitwise': 'off',
      'no-plusplus': 'off',
      'no-restricted-syntax': 'off',
      'no-underscore-dangle': 'off',
      'import/extensions': 'off',
      'import/no-extraneous-dependencies': ['error', { devDependencies: true }],
    },
    extends: 'airbnb-base',
    plugins: ['import'],
    env: {
      browser: true,
      node: true,
      mocha: true,
    },
  };
  
subject: Allow devDeps in eslint rules