Add type hint to docblock

src/Http/Controllers/AuthenticationController.php

@@ -38,8 +38,7 @@ class AuthenticationController extends Controller
 	 * Attempts to log the user into this app, and creates them if they
 	 * don't exist. Then redirects the user to the configured post_login url.
 	 *
-	 * @TODO fix type hint on request \/
+	 * @param Request $request
-	 * @param $request
 	 * @return mixed
 	 */
 	public function callback(Request $request)