From 4d25cabfe2ae2a0e23324b9c53331cbfe658c51a Mon Sep 17 00:00:00 2001
From: Jakub Warmuz <jakub@warmuz.org>
Date: Sun, 4 Oct 2015 19:27:47 +0000
Subject: [PATCH] Add missing docstring

---
 letsencrypt/plugins/standalone.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/letsencrypt/plugins/standalone.py b/letsencrypt/plugins/standalone.py
index b76095f89..17e99073f 100644
--- a/letsencrypt/plugins/standalone.py
+++ b/letsencrypt/plugins/standalone.py
@@ -176,6 +176,7 @@ class Authenticator(common.Plugin):
 
     @property
     def supported_challenges(self):
+        """Challenges supported by this plugin."""
         return set(challenges.Challenge.TYPES[name] for name in
                    self.conf("supported-challenges").split(","))