How to use the rollbar.umd function in rollbar

test: /\.js$/,
        loader: 'strict-loader',
        exclude: [/node_modules/, /vendor/]
      }
    ],
  }
};

var noConflictConfigBase = extend({}, UMDConfigBase);
noConflictConfigBase.entry = {
  'rollbar.noconflict.umd': ['./src/browser/bundles/rollbar.noconflict.js']
};

var namedAMDConfigBase = extend({}, UMDConfigBase);
namedAMDConfigBase.entry = {
  'rollbar.named-amd': namedAMDConfigBase.entry['rollbar.umd']
};
namedAMDConfigBase.output = extend({}, namedAMDConfigBase.output);
namedAMDConfigBase.output.library = 'rollbar';
namedAMDConfigBase.output.libraryTarget = 'amd';


var config = [snippetConfig, pluginConfig];

function optimizationConfig(minimizer) {
  return {
    minimize: minimizer ? true : false,
    minimizer: minimizer ? [minimizer] : []
  }
}

function addVanillaToConfig(webpackConfig, filename, extraPlugins, minimizer) {