code: function createApplication() {
  	const app = function (req, res, next) {
  		app.handle(req, res, next);
  	};
  
  	app.__proto__ = proto;
  	mixin(app, EventEmitter.prototype);
  
  	app.init();
  	return app;
  }
docs: Create an express application.
  
  @return {Function}
  @api public