move exports to the bottom

Author: jimmywarting

Diff for: lib/agent.js

@@ -4,11 +4,6 @@
  * Module dependencies.
  */
 
-/**
- * Expose `Agent`.
- */
-
-module.exports = TestAgent;
 const { agent: Agent } = require('superagent');
 const methods = require('methods');
 const http = require('http');
@@ -68,3 +63,9 @@ methods.forEach(function(method) {
 });
 
 TestAgent.prototype.del = TestAgent.prototype.delete;
+
+/**
+ * Expose `Agent`.
+ */
+
+module.exports = TestAgent;