From 3a8205c6d9962e9244e1bb6fc0d009f4f8799ec9 Mon Sep 17 00:00:00 2001
From: Paul Romano <paul.k.romano@gmail.com>
Date: Thu, 8 Jun 2017 19:44:31 -0500
Subject: [PATCH] Fix docstring for openmc.reserve_ids

---
 openmc/mixin.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/openmc/mixin.py b/openmc/mixin.py
index 555c3b158..89b8df273 100644
--- a/openmc/mixin.py
+++ b/openmc/mixin.py
@@ -73,6 +73,9 @@ def reserve_ids(ids, cls=None):
     ----------
     ids : iterable of int
         IDs to reserve
+    cls : type or None
+        Class for which IDs should be reserved. If None, all classes that have
+        auto-generated IDs will be used.
 
     """
     if cls is None: