old_contents: // import path for resolving file paths
  var path = require('path');
  module.exports = {
      mode: 'none',
      // Specify the entry point for our app.
      entry: [
          path.join(__dirname, '..', 'lib', 'core.js'),
      ],
      // Specify the output file containing our bundled code
      output: {
          path: path.join(__dirname, '..', 'dist'),
          filename: 'aws-sdk-core-react-native.js',
          libraryTarget: 'umd',
          library: 'AWS'
      },
      resolve: {},
      module: {
          /**
           * Tell webpack how to load 'json' files.
           * By default, webpack only knows how to handle
           * JavaScript files.
           * When webpack comes across a 'require()' statement
           * where a json file is being imported, it will use
           * the json-loader.
           */
          rules: [
              { test: /\.json&/, use: 'json-loader' }
          ]
      }
  };
  
new_contents: // import path for resolving file paths
  var path = require('path');
  module.exports = {
      mode: 'production',
      // Specify the entry point for our app.
      entry: [
          path.join(__dirname, '..', 'lib', 'core.js'),
      ],
      // Specify the output file containing our bundled code
      output: {
          path: path.join(__dirname, '..', 'dist'),
          filename: 'aws-sdk-core-react-native.js',
          libraryTarget: 'umd',
          library: 'AWS'
      },
      resolve: {},
      module: {
          /**
           * Tell webpack how to load 'json' files.
           * By default, webpack only knows how to handle
           * JavaScript files.
           * When webpack comes across a 'require()' statement
           * where a json file is being imported, it will use
           * the json-loader.
           */
          rules: [
              { test: /\.json&/, use: 'json-loader' }
          ]
      }
  };
  
subject: enable webpack production mode