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var version = require('./package.json').version;var ts = new Date().getTime();
module.exports = function(config) {  var auth;
  try {    auth = require('./test/auth/index');  } catch(ex) {    auth = {};    auth.SAUCE_USERNAME = process.env.SAUCE_USERNAME || null;    auth.SAUCE_ACCESS_KEY = process.env.SAUCE_ACCESS_KEY || null;  }
  if (!auth.SAUCE_USERNAME || !auth.SAUCE_ACCESS_KEY) return;  if (process.env.SKIP_SAUCE) return;
  var branch = process.env.TRAVIS_BRANCH || 'local'  var browserConfig = require('./sauce.browsers');  var browsers = Object.keys(browserConfig);  var tags = [ 'chaijs_' + version, auth.SAUCE_USERNAME + '@' + branch ];  var tunnel = process.env.TRAVIS_JOB_NUMBER || ts;
  if (process.env.TRAVIS_JOB_NUMBER) {    tags.push('travis@' + process.env.TRAVIS_JOB_NUMBER);  }
  config.browsers = config.browsers.concat(browsers);  Object.assign(config.customLaunchers, browserConfig);  config.reporters.push('saucelabs');  config.captureTimeout = 300000;
  config.sauceLabs = {      username: auth.SAUCE_USERNAME    , accessKey: auth.SAUCE_ACCESS_KEY    , startConnect: ('TRAVIS' in process.env) === false    , tags: tags    , testName: 'ChaiJS'    , tunnelIdentifier: tunnel  };};