docs: function() {
          var self = this;
          // Read all files from ./services and add them to this object
          // ex: services/User.js becomes mangopay.Users
          var servicesRoot = path.join(__dirname, 'services');
          fs.readdirSync(servicesRoot).forEach(function (file) {
              var serviceName = file.match(/(.*)\.js/)[1];
              var ServiceClass = require(servicesRoot + '/' + file);
              self[serviceName] = new ServiceClass();
              self[serviceName]._api = self;
          });
  
          // Read all files from ./models and add them to this object
          // ex: models/User.js becomes mangopay.models.User
          var modelsRoot = path.join(__dirname, 'models');
          self.models = {};
          fs.readdirSync(modelsRoot).forEach(function (file) {
              var modelName = file.match(/(.*)\.js/)[1];
              self.models[modelName] = require(modelsRoot + '/' + file);
          });
      }