Minor comment addition.

jagill · jagill · commit 13ece92db1cc · 2016-01-08T14:30:14.000-08:00
diff --git a/chainz/chainz.py b/chainz/chainz.py
@@ -137,6 +137,7 @@ def do_f(x):
         self._wrap_iterator(do_f)
         return self
 
+    # KEY OPERATIONS
     def set_key(self, key, value):
         """Set a key `key` with value `value` to each object.
 
