From ecdd21212cf12f8de306b451ef548ce702ba3603 Mon Sep 17 00:00:00 2001
From: Mitchell Ferree <thebeatbutton@gmail.com>
Date: Tue, 8 Aug 2017 20:06:14 -0600
Subject: [PATCH] Disallow setting non-permission attributes

---
 discord/permissions.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/discord/permissions.py b/discord/permissions.py
index 9ba0e3f04..0f4080b21 100644
--- a/discord/permissions.py
+++ b/discord/permissions.py
@@ -529,6 +529,8 @@ class PermissionOverwrite:
         Set the value of permissions by their name.
     """
 
+    __slots__ = ('_values',)
+
     def __init__(self, **kwargs):
         self._values = {}