babel/packages/babel-plugin-transform-arrow-functions/test/fixtures/arrow-functions/nested/output.js

module.exports = {
  init: function () {
    var _this = this;
    return new Promise(function (resolve, reject) {
      MongoClient.connect(config.mongodb, function (err, db) {
        if (err) {
          return reject(err);
        }
        _this.db = db;
        resolve(_this);
      });
    });
  }
};